CA2070914C - Dilatation catheter and guidewire exchange - Google Patents
Dilatation catheter and guidewire exchange Download PDFInfo
- Publication number
- CA2070914C CA2070914C CA002070914A CA2070914A CA2070914C CA 2070914 C CA2070914 C CA 2070914C CA 002070914 A CA002070914 A CA 002070914A CA 2070914 A CA2070914 A CA 2070914A CA 2070914 C CA2070914 C CA 2070914C
- Authority
- CA
- Canada
- Prior art keywords
- guidewire
- catheter
- catheter body
- port
- lumen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M2025/0183—Rapid exchange or monorail catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/107—Balloon catheters with special features or adapted for special applications having a longitudinal slit in the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
Abstract
An intravascular catheter system, such as a dilatation catheter system for angioplasty procedures, which provides for the replacement of the catheter or the guidewire thereof during the procedure. The intravascular catheter has an guidewire-receiving inner lumen extending along the length thereof. A first guidewire port is provided in the catheter body at or near the proximal end of the catheter, a second guidewire port is provided in the catheter body at a location spaced distally from the first guidewire port and proximally from a diagnostic or therapeutic means on a distal portion of the catheter and a third guidewire port is provided in the distal end of the catheter. The guidewire ports are in communication with the guidewire-receiving inner lumen.
Description
~'~~~~'~
c~'~~ ~y~wrr~ c~.~~~t ~N~ ~~~vvz~ Exc~~~E
>3ACKGROUND OF THE INVENTION
This invention generally relates to a catheter system which is suitable for intravascular procedures such as percutaneous transluminal coronary angioplasty (PT'CA) and which allows for the exchange of guidewires and catheters during such procedures.
In classic PTCA procedures, a guiding catheter having a preshaped distal tip is percutaneously introduced into the cardiovascular system of a patient and advanced therein until the preshaped distal tip thereof is disposed within the aorta adjacent the ostium of the desired coronary artery. The guiding catheter is twisted or torqued from the proximal end to turn the distal dp of the guiding catheter so that it can be guided into the coronary ostium. A dilatation catheter having a balloon on the distal end thereof and a guidewire slidably disposed within an inner lumen of the dilatation catheter are introduced into and advanced through the guiding catheter to the distal tip thereof. The distal tip of the guidewire is usually manually shaped (i.e.
curved) by the physician or one of the attendants before the guidewire is introduced into the guiding catheter along with the dilatation catheter. 'The guidewire is first advanced out the distal tip of the guiding catheter, which is seated in the ostium of the patient's coronary artery, into the patient's coronary artery.
A torque is applied to the proximal end of the guidewire, which extends out of the patient, to guide the curved or otherwise shaped distal end of the guidewire as the guidewire is advanced within the coronary anatomy until the shaped distal end of the guidewire enters the desired artery. The advancement of the guidewire within the selected artery continues until it crosses the lesion to be dilated. The dilatation catheter is then advanced out of the distal tip of the guiding catheter, over the previously advanced guidewire, until the balloon on the distal extremity of the dilatation catheter is properly positioned across the lesion. Once properly positioned, the flexible, relatively inelastic balloon is inflated to a predetermined size with radiopaque liquid at relatively high pressures (e. g., 4-12 atmospheres) to dilate the stenosed region of the diseased artery. The balloon is then deflated so that the dilatation catheter can be removed from the dilated stenosis and blood flow can then be resumed therethrough.
Further details of guiding catheters, dilatation catheters, guidewires, and the like for angioplasty procedures can be found in U.S. Patent 4,323,071 (Simpson-Robert); U.S.
Patent 4,439,185 (Lundquist); U.S. Patent 4,468,224 (Enzmann et al.); U.S. Patent 4,516,972 (Samson); U.S. Patent 4,438,622 (Samson et al.); U.S. Patent 4,554,929 (Samson et al.); U.S.
Patent 4,582,185 (Samson); U.S. Patent 4,616,652 (Simpson);
U.S. Patent 4,638,805 (Powell); U.S. Patent 4,748,986
c~'~~ ~y~wrr~ c~.~~~t ~N~ ~~~vvz~ Exc~~~E
>3ACKGROUND OF THE INVENTION
This invention generally relates to a catheter system which is suitable for intravascular procedures such as percutaneous transluminal coronary angioplasty (PT'CA) and which allows for the exchange of guidewires and catheters during such procedures.
In classic PTCA procedures, a guiding catheter having a preshaped distal tip is percutaneously introduced into the cardiovascular system of a patient and advanced therein until the preshaped distal tip thereof is disposed within the aorta adjacent the ostium of the desired coronary artery. The guiding catheter is twisted or torqued from the proximal end to turn the distal dp of the guiding catheter so that it can be guided into the coronary ostium. A dilatation catheter having a balloon on the distal end thereof and a guidewire slidably disposed within an inner lumen of the dilatation catheter are introduced into and advanced through the guiding catheter to the distal tip thereof. The distal tip of the guidewire is usually manually shaped (i.e.
curved) by the physician or one of the attendants before the guidewire is introduced into the guiding catheter along with the dilatation catheter. 'The guidewire is first advanced out the distal tip of the guiding catheter, which is seated in the ostium of the patient's coronary artery, into the patient's coronary artery.
A torque is applied to the proximal end of the guidewire, which extends out of the patient, to guide the curved or otherwise shaped distal end of the guidewire as the guidewire is advanced within the coronary anatomy until the shaped distal end of the guidewire enters the desired artery. The advancement of the guidewire within the selected artery continues until it crosses the lesion to be dilated. The dilatation catheter is then advanced out of the distal tip of the guiding catheter, over the previously advanced guidewire, until the balloon on the distal extremity of the dilatation catheter is properly positioned across the lesion. Once properly positioned, the flexible, relatively inelastic balloon is inflated to a predetermined size with radiopaque liquid at relatively high pressures (e. g., 4-12 atmospheres) to dilate the stenosed region of the diseased artery. The balloon is then deflated so that the dilatation catheter can be removed from the dilated stenosis and blood flow can then be resumed therethrough.
Further details of guiding catheters, dilatation catheters, guidewires, and the like for angioplasty procedures can be found in U.S. Patent 4,323,071 (Simpson-Robert); U.S.
Patent 4,439,185 (Lundquist); U.S. Patent 4,468,224 (Enzmann et al.); U.S. Patent 4,516,972 (Samson); U.S. Patent 4,438,622 (Samson et al.); U.S. Patent 4,554,929 (Samson et al.); U.S.
Patent 4,582,185 (Samson); U.S. Patent 4,616,652 (Simpson);
U.S. Patent 4,638,805 (Powell); U.S. Patent 4,748,986
-2-(Morrison et al.); U.S. Patent 4,898,577 (Badger et al.); and U.S. Patent 4,748,982 (Horzewski et al.).
Recently, the licensee of the present invention, Advanced Cardiovascular Systems, Inc., introduced into the market place an improved dilatation catheter which is described and claimed in U.S. Patent 4,748,982 (Horzewski et al.). This dilatation catheter has a short guidewire-receiving sleeve or inner lumen extending through just the distal portion of the catheter. The sleeve extends proximally at least 10 cm, typically about 25 cm, from a guidewire port in the distal end of the catheter to another guidewire port in the wall of the catheter. A slit is provided in the catheter wall which extends distally from the second guidewire port to a location proximal to the proximal end of the inflatable balloon. The structure of the catheter allows for the rapid exchange of the catheter without the need for an exchange wire or adding a guidewire extension to the proximal end of the guidewire.
The catheter design embodying the Horzewski et al.
improvements has been widely praised by members of the medical profession and has met with much commercial success in the market place. Nonetheless, there are some inconveniences in its use because the catheter does not allow for the exchange or replacement of the guidewire. For example, the shaped distal tip of the guidewire may become deformed in use or the shape of the distal tip or the size of the guidewire may be
Recently, the licensee of the present invention, Advanced Cardiovascular Systems, Inc., introduced into the market place an improved dilatation catheter which is described and claimed in U.S. Patent 4,748,982 (Horzewski et al.). This dilatation catheter has a short guidewire-receiving sleeve or inner lumen extending through just the distal portion of the catheter. The sleeve extends proximally at least 10 cm, typically about 25 cm, from a guidewire port in the distal end of the catheter to another guidewire port in the wall of the catheter. A slit is provided in the catheter wall which extends distally from the second guidewire port to a location proximal to the proximal end of the inflatable balloon. The structure of the catheter allows for the rapid exchange of the catheter without the need for an exchange wire or adding a guidewire extension to the proximal end of the guidewire.
The catheter design embodying the Horzewski et al.
improvements has been widely praised by members of the medical profession and has met with much commercial success in the market place. Nonetheless, there are some inconveniences in its use because the catheter does not allow for the exchange or replacement of the guidewire. For example, the shaped distal tip of the guidewire may become deformed in use or the shape of the distal tip or the size of the guidewire may be
-3-found to be no longer suitable for the particular procedure within the patient's vasculature. In this instance the physician might want to remove the guidewire and reshape the distal tip or replace the first guidewire with another having the desired size, stiffness or shape. However, when the guidewire in a dilatation catheter system embodying the Horzewski et al. improvements is removed, access to the desired arterial location through the distal guidewire lumen of the catheter is lost. Unfortunately, there is no way to clinically determine before the guidewire is inserted into the patient in an angioplasty procedure whether a guidewire or a catheter will have to be exchanged during the procedure.
What has been needed and heretofore unavailable is an intravascular catheter system which allows for the rapid exchange of either the catheter or the guidewire during an intravascular procedure without losing access to the desired region of the patient's arterial system. The present invention satisfies this and other needs.
SUMMARY OF THE INVENTION
This invention is directed to a catheter system which can be used in an over-the-wire type mode and which can also allow for the exchange of either a guidewire or a catheter mounted over a guidewire during an intraluminal procedure such as a PTCA without losing access to the body lumen and the method of using such a catheter system.
What has been needed and heretofore unavailable is an intravascular catheter system which allows for the rapid exchange of either the catheter or the guidewire during an intravascular procedure without losing access to the desired region of the patient's arterial system. The present invention satisfies this and other needs.
SUMMARY OF THE INVENTION
This invention is directed to a catheter system which can be used in an over-the-wire type mode and which can also allow for the exchange of either a guidewire or a catheter mounted over a guidewire during an intraluminal procedure such as a PTCA without losing access to the body lumen and the method of using such a catheter system.
-4-The invention provides an intravascular catheter system which is adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof while the catheter system is disposed within the patient's vascular system or the catheter while the guidewire is disposed within the patient's vasculature, the system comprising: (a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending to the distal end of the catheter body; (b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature; (c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
-4a-The invention also provides a dilatation catheter suitable for performing angioplasty procedures within a patient's artery, comprising: (a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof; (b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen; (c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
The invention also provides an intravascular catheter system which is a adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof -4b-while the catheter system is disposed within the patient's vascular system, the system comprising: (a) an elongated catheter body having proximal and distal ends and a first inner lumen adapted to receive a guidewire therein extending to the distal end of the catheter body; (b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature and being in communication with a second inner lumen extending within the catheter body; (c) a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the first guidewire-receiving inner lumen; (d) a second guidewire port in the catheter body being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body in communication with the first guidewire-receiving inner lumen; and (f) a slit provided through a wall of the catheter body which extends between the first and second guidewire ports to facilitate the separation between the guidewire and the catheter body.
The invention also provides a readily exchangeable dilatation catheter suitable for performing angioplasty procedures within a patient's artery which permits the exchange of a guidewire during an angioplasty procedure, -4c-comprising: (a) an elongated catheter body having proximal and distal ends, a first lumen adapted to receive a guidewire and extending within the catheter body to the distal end thereof and a second lumen adapted to direct inflation fluid therethrough and extending within the catheter body a distal portion thereof; (b) an inflatable member on a distal portion of the catheter body having an interior in fluid communication with the second lumen; (c) a first guidewire port in the catheter body being located at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; (d) a second guidewire port in the catheter body being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end and being in communication with the first guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body distal to the inflatable member which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the interior of the inflatable member through the inflation lumen.
The invention further provides a method of exchanging a guidewire during an intravascular procedure within a patient's vascular system comprising: (a) providing an intravascular catheter which includes, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal -4d-portion of the catheter body, a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in the catheter body being spaced proximally from the diagnostic or therapeutic means and at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, and a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; (b) disposing the intravascular catheter within the vascular system of the patient with an in-place guidewire disposed within the guidewire-receiving inner lumen with the distal end thereof extending out the third guidewire port into the patient's vascular system and the proximal end extending out the second guidewire port; (c) withdrawing the in-place guidewire from the patient's vascular system by pulling on the proximal end thereof, while holding the intravascular catheter in place so as to maintain access to the location of the in-place guide-wire within the patient's arterial system; and (d) advancing within the guidewire-receiving inner lumen of the intravascular catheter a replacement guidewire, which is disposed within the guidewire-receiving inner lumen with the proximal end of the replacement guidewire extending proximally out of the first guidewire port and distally out the third guidewire port into the patient's vascular system, until the distal end of the guidewire extends beyond the location of the intravascular procedure.
-4e-The invention also provides a method for performing a diagnostic or therapeutic procedure within a patient's vascular system, the steps comprising: (a) providing a first intravascular catheter within the patient's vascular system which comprises, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal portion of the catheter body, a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in the catheter body being spaced proximally from the diagnostic or therapeutic means at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen, and a slit in a wall of the catheter body defining at least in part the guidewire-receiving inner lumen which extends from the first to the second guidewire port;
(b) providing within the patient's vascular system a guidewire which has proximal and distal ends and which is disposed within the guidewire-receiving inner lumen of the first intravascular catheter with a distal end of the guidewire extending out the third guidewire port and a proximal end of the guidewire extending out the first guidewire port;
(c) withdrawing the first intravascular catheter from the patient's vascular system over the guidewire which is -4f-maintained in position within the patient's vascular system;
(d) stripping the catheter body of the first intravascular catheter from the guidewire after it exits the patient's vascular system, with the guidewire passing through the slit in the catheter body until it exits from the second guidewire port, further removing the first intravascular catheter from the patient over the guidewire until the distal tip of the catheter exits the patient and a portion of the guidewire is exposed distal to the distal tip and manually holding the portion of the guidewire exposed distal to the distal tip of the catheter while the catheter is pulled off the guidewire;
(e) inserting the proximal end of the guidewire through a first guidewire port in the distal end of a second intravascular catheter into a guidewire-receiving inner lumen disposed within the second intravascular catheter and out a second guidewire port spaced proximally from diagnostic or therapeutic means on a distal portion of the second intravascular catheter and at least 10 cm from the distal end of the second intravascular catheter; and advancing the second intravascular catheter over the guidewire until diagnostic or therapeutic means thereon is at location where the diagnostic or therapeutic procedure is to occur.
The catheter body first guidewire port is generally at or close to the proximal end of the catheter body, e.g. not more than about 30 cm therefrom, and, preferably, is not more than about 10 cm from the proximal end of the catheter body.
The second port is spaced closer to the diagnostic or therapeutic means than it is to the first port and -4g-FRO d. ' d' w/.,.. .rd..
generally is at least about 10 cm from the distal end of the catheter body preferably about 15 cm to about ~0 cm.
In a presently preferred embodiment the catheter is a balloon dilatation catheter adapted to perform PTCA procedures. The catheter has a catheter body with two inner lumen extending essentially the length thereof, one of the lumens being a guidewire-receiving lumen and the other lumen being adapted to direct inflation fluid to the interior of a dilatation balloon on the distal portion of the catheter.
One of the attractive features of this catheter design is that the catheter can be used as an over-the-wire type dilatation catheter in a conventional fashion, yet it allows both the catheter and the guidewire to be exchanged during the 1?TCA procedure. Similar catheter designs can be used with other intralurninal catheters which have diagnostic or therapeutic means on the distal portion of the Catheter.
To facilitate the separation of the guide~wire and the catheter during an exchange thereof, a slit is preferably provided in the wall of the catheter body which defines at least part of the guidewire-receiving inner lumen. The slit extends distally from the first guidewire port, preferably to the secomd port. A second slit should extend distally from the second guidewire port to a location proximately adjacent the diagnostic or therapeutic means.
To replace a catheter during an intraluminal procedure such as P'TCA, the in-place catheter is pulled proximally over the guidewire from the proximal end of the catheter. If the in-place guidewire extends out the second guidewire port, the catheter is withdrawn peeling the catheter off of the guidewire through the slit extendirxg distally from the second guidewire until the distal end of the catheter exits -S-~. ~ ~,s a.~.~S.E
the proximal end of the guiding catheter or an adapter attached thereto at which point the guidewire can be manually held in position while the catheter is removed from the proximal end thereof. If the in-place guidewire exits the inner lumen of the catheter from the first guidewire port, the catheter is separated from the guidewire by peeling the catheter away from the guidewire through the slit which extends between the first and second guidewire port as the catheter is withdrawn from the proximal end of the guiding catheter or the adapter attached thereto until the guidewire exits the second guidewire port. The separation of the catheter from the guidewire continues as previously described with the catheter being peeled off of the guidewire through the slit which extends distally from the second guidewire port. The catheter is further withdrawn until the distal end of the catheter exits the proximal end of the guiding catheter and which time the guidewire can be manually held while the catheter is pulled off the proximal end of the guidewire.
Once the catheter has been removed from the proximal end of the in-place guidewire, the proximal end of the in-place guidewire is inserted into the third guidewire port in the distal end of a replacement catheter and then the replacement catheter can be advanced into the patient's vasculature over the in-place guidewire to perform the intravascular procedure. The proximal end of the guidewire can be directed out of either the second or the first guidewire port in the catheter body depending upon the needs of the physician.
The catheter system of the invention also allows for the exchange of an in-place guidewire during an intraluminal procedure while holding the catheter in place so as to maintain access to the intraluminal position. To replace an in-place guidewire, it is removed from the guidewire-receiving inner lumen of the catheter and the patient by pulling on its proximal end which extends out of the patient.
When the in-place guidewire is removed from the inner lumen of the in-place catheter, the replacement guidewire is inserted into the guidewire-receiving inner lumen of the in-place catheter through the proximal guidewire port and advanced through the guidewire-receiving inner lumen and out the third port in the distal end thereof to the desired location within the patient's body lumen. If the in-place guidewire extends out the second guidewire port, it may be desirable to have the replacement guidewire inserted into the proximal portion of the guidewire-receiving inner lumen through the first or proximal guidewire port before the in-place guidewire is removed from the distal portion of the inner lumen so that there is little chance of losing access to the lumenal location by the accidental movement of the in-place catheter. When the replacement guidewire is advanced through the in-place catheter and properly positioned in a desired location therein, e.g. across a stenosis in a patient's artery which is to be dilated, the catheter may then be advanced over the replacement guidewire to the desired location so as to perform the desired diagnostic or therapeutic treatment therein.
The intravascular catheter of the invention also allows for the removal and reinsertion of a guidewire, for example, when the physician wishes to change the shape of the distal end of a guidewire during a procedure. In this operative modality, the in-place guidewire can be withdrawn in essentially the manner described above, the distal tip thereof reshaped and then be reintroduced into the in-place catheter in essentially the same manner as described above.
As will become more apparent from the following detailed description of the invention, the iritravascular catheter system of the invention allows for a wide variety of intravascular procedures which were heretofore impossible to perform with a single catheter system. These and other advantages are described in the following detailed description when taken in conjunction with the accompanying exemplary drawings.
BRTEF' DESCIiIF"hI~Id at~F 'DlE~l~Wil~~:~
Fig. 1 is an elevational view, partially in section, of a dilatation catheter having a guidewire-receiving inner lumen which embodies features of the mvenuon.
Fig. 2 is a transverse, cross-sectional view of the; catheter shown in Fig. 1 taken along the lines 2-2.
Fig. 3 is a transverse, cross-sectional view of the catheter shown in Fig. 1 taken along the lines 3-3.
Fig. 4 is a transverse, cross-sectional view of the catheter shown is Fig.
1 taken along the lines 4-4.
Fig. 5 illustrates an altez°nate embodiment of the invention in which a guidewire extends oirt the proximal end of an adapter mounted on the proximal end of the catheter body.
Fig. 6 is a transverse, cross-sectional view of the catheter shown in Fig. 5 taken along the lines 6-6.
_g_ Fig. 7 is a transverse, cross-sectional view of the catheter shown in Fig. 5 taken along the lines 7-7.
DF'I".AII~ED DF"SCOleT ~F 'I CIE II~FI~1'TI~1~
Figs. 1-4 illustrate a dilatation catheter 10 embodying features of the invention which allow for the exchange of a guidewire while the catheter remains in place within the patient and which also allow for the exchange of the catheter while the guidewire remains in place so as to avoid loss of the arterial position.
The catheter i0 generally comprises an elongated catheter body 11, an inflation lumen 12 adapted to direct inflation fluid from the proximal end of the catheter body, to the interior of an inflatable balloon 13 on the distal portion of the catheter .body and a guidewire-receiving inner lumen 14 extending therein.
i5 The wall of the catheter body 11 defining at least part of the guidewire-receiving inner lumen 14 has a first guidewire port 15 near the proximal end 16 of the catheter body, a s~ond guidewire port 17 distal too the first port and at least about 10 cm from the distal end of the catheter body and a third guidewire port 18 located in the distal end 18 of the catheter body, wherein the second guidewire port 17 is substantially closer to the third port 18 than the first port 15.
An adapter 20 is provided on the proximal end 16 of the catheter body 11 to facilitate the introduction of inflation fluid into the inflation lumen 12 which directs the fluid to the interior of the inflatable balloon 13 through the inflation port 22.
A first slit 23 is preferably provided in the wall of the catheter body which defines the guidewire-receiving inner lumen 14 and extends between the first guidewire part 15 and the s~ond guidewire port 17. A second slit 24 is provided in the wall of the catheter body 11 which further defines the guidewire-receiving inner lumen and extends from the second guidewire port 17 to a location proximal to the proximal end 25 of the balloon 13.
The catheter body 11 has a tubular extension 26 on the distal portion thereof which extends through the interior and out the distal end of the balloon 13.
The tubular extension 26 is adapted to r~eive a guidewire 27 within the inner lumen 14.. The distal end of the guidewire 27 has a coil 28 on the distal end thereof which is shown extending out the third guidewire port 18 in the distal end 19 of the catheter body 11 and has an elongated core member 29 which is shown extending out the second guidewire port 18. The guidewire 27 is shown in phantom in a second position disposed within the proximal section of the inner lumen 14. 'The proximal portion of the elongated core member 29 extends out the first guidewire port 15 near the proximal end 16 of the catheter body 11.
A radiopaque marker 30 is disposed about the tubular extension 26 within the interior of the balloon 13 to facilitate the fluoroscopic observation thereof during an intravascular procedure. ltadiopaque markers 31, 32 and 33 may also be provided an the proximal portion of the catheter body 11 to allow the physician to fluoroscopically determine the location of the first and second guidewire ports and the like during the intravascular procedures.
The catheter system of the invention can be inserted into the patient in a conventional over-the-wire fashion with the guidewire 27 preloaded within the inner lumen 14 and extending proximally out the first or proximal port 15 or it can be inserted in a manner similar to that used to insert catheters having the improvements of Pock and Horzewski et al. wherein the guidewire extends proximally out the second or intermediate guidewire port 17. When it becomes desirable or necessary at any time during the intravascular procedure to remove or replace either the catheter or the guidewire 27 either may be removed by pulling on the proximal end thereof which extends out of the patient while the catheter or guidewire which remains within the patient is held in position in order to maintain access to the desired intravascular 10 location.
If the guidewire is to be remaved, Lhe catheter 10 is held in place while the guidewire is pulled out of the proximal end of the guiding catheter and the catheter 10. ~Nhen the guidewire has been removed from the catheter 10, a 1S replacement guidewire may then be inserted through the first guidewire port 15 which is outside the patient into the inner lumen 14 and advanced therein until the guidewire exits the third guidewire pozt 18 in the distal end 19 of the catheter body 11 into the patient's coronary artery. Once the replacement guidewire 27 is properly positioned within the patient's artery, e.g. across a steposis to be dilated, the dilatation catheter 10 may then be further advanced within the artery over the replacement guidewire to the desired location therein to perform the dilatation or other diagnostic or therapeutic procedure in a conventional manner.
If the catheter 10 is to be removed and the guidewire 27 extends 2S proximally out the first guidewire port 15, the guidewire and the catheter are separated while the catheter is being removed by pulling the guidewire through the slit 23 until the guidewire extends out the second guidewire port 17. The peeling of the catheter off of the guidewire 27 continues through the slit 24 while the catheter is being withdrawn. When the distal end 19 of the catheter exits the proximal end of the guiding catheter, the guidewire may be manually gripped and the catheter removed from the proximal end of the guidewire. If the guidewire 27 exits the second guidewire port 17 the procedure is essentially the same except that there is no need to peel the catheter 10 away from the guidewire through the slit 23 until the guidewire extends through the second guidewire port 17. When the catheter 10 has been removed, the replacement catheter is mounted onto the guidewire 27 by inserting the proximal end of the guidewire through the third guidewire port 18 in the distal end 19 of the replacement catheter and advancing the catheter over the guidewire disposed within the inner lumen 14 of the catheter until the guidewire exits the second guidewire port 17. The replacement catheter may then be inserted into the patient and advanced therein in a conventional manner as described in Yock or Horzewski et al.
In another method the replacement catheter is mounted onto the guidewire 27 as previously described but the replacement catheter is advanced over a the guidewire until the proximal end of the guidewire exits the first guidewire port 15.
In this method the replacement catheter is advanced well within the patient's vasculature before the guidewire exits the proximal end of the guidewire exits the first port, it is manually grasped and the replacement catheter advanced further over the wire into the patient's coronary arteries.
An alternate embodiment of the invention is illustrated in FIGS. 5-7.
This embodiment is quite similar to the embodiment shown is FIGS. 1-4 except that __ CA 02070914 1999-12-15 the guidewire 27 extends through the center arm of the two arm adaptor 35 on the proximal end of the catheter body 11.1fie corresponding parts of this embodiment are numbered the same as the parts of the embodiments shown in FIGS. 1-4. The first guidewire port 15 in this embodiment (not shown in the drawings) is in the proximal end 16 of the catheter body 11 and opens to the adapter 35. The use of this embodiment is the essentially the same as the embodiment shown in FIGS. 1-4.
The adaptor 35 is modified to include a slit 44 which is continuous with the slit 23 in the catheter body 11.
The catheter body 11 can be formed by conventional techniques, e. g.
extruding, from materials already found useful in intravascular catheters such a polyethylene, polyimide, polyvinyl chloride, polyesters and composite materials such as described in U.S. Patent 4,981,478 (Evard et al.), The various components of the catheter can be joined by suitable adhesive such as the acrylonitrile based adhesive sold as Loctite"' 405. Heat shrinking may also be employed where appropriate. A venting means may be provided to remove air from the interior of the balloon before the catheter is inserted into the patient such as described in U.S. Patent 4,638,805 (Powell) and U.S. Patent 4,821,722 (Samson et al. ).
The size of the catheter body 11 and the guidewire-receiving inner lumen 14 thereof to a large extent are determined by the size of the guidewires 27 to be employed and the size of the artery or other body lumen through which the catheter must pass. Generally, the diameter of the inner lumen is sufficient to accommodate the guidewire and to allow it to be slidably disposed therein. The diameters of guidewires for coronary use can vary from about 0.008 to about 0.035 inch (0.2-0.~9 mm) in diameter, and the inner diameter of the guidewire-receiving inner lumen 14 of the catheter 10 should be about 0.001 to about 0.005 inch (0.025-0.127 mm) larger than the diameter of the guidewire. The catheter body 11 is sufficiently long to extend from outside the proximal end of a guiding catheter, which S likewise extends out of the patient, to a stenasis to be treated within the patient's vascular system (or other desired location therein), e. g. from about 100 to about 150 cm when a ~eldinger approach through the femoral artery is employed to introduce the catheter i0 into the patient's vasculature. The wall forming the catheter must be of sufficient thickness and strength so that it can be pushed over the guidewire 27 to the desired location within the patient's blood vessel. If desired the proximal portion of the dilatation catheter 10 can be provided with a stiffening means to facilitate the advancement of the catheter within the patient's vasculature.
While the invention has been described herein in terms of certain presently preferred embodiments directed to balloon dilatation catheters for use in coronary angioplasty procedures, those skilled in the art will recognize that the catheter of the invention may be used in a variety of body lumens. For example, the invention can be utilized in a wide variety of diagnostic and therapeutic intravascular catheters. Additionally, the catheter body may be of concentric construction rather than the dual lumen construction shaven herein. ~ther modifications and improvements may be made to the invention without departing from the scope thereof.
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
-4a-The invention also provides a dilatation catheter suitable for performing angioplasty procedures within a patient's artery, comprising: (a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof; (b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen; (c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
The invention also provides an intravascular catheter system which is a adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof -4b-while the catheter system is disposed within the patient's vascular system, the system comprising: (a) an elongated catheter body having proximal and distal ends and a first inner lumen adapted to receive a guidewire therein extending to the distal end of the catheter body; (b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature and being in communication with a second inner lumen extending within the catheter body; (c) a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the first guidewire-receiving inner lumen; (d) a second guidewire port in the catheter body being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body in communication with the first guidewire-receiving inner lumen; and (f) a slit provided through a wall of the catheter body which extends between the first and second guidewire ports to facilitate the separation between the guidewire and the catheter body.
The invention also provides a readily exchangeable dilatation catheter suitable for performing angioplasty procedures within a patient's artery which permits the exchange of a guidewire during an angioplasty procedure, -4c-comprising: (a) an elongated catheter body having proximal and distal ends, a first lumen adapted to receive a guidewire and extending within the catheter body to the distal end thereof and a second lumen adapted to direct inflation fluid therethrough and extending within the catheter body a distal portion thereof; (b) an inflatable member on a distal portion of the catheter body having an interior in fluid communication with the second lumen; (c) a first guidewire port in the catheter body being located at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; (d) a second guidewire port in the catheter body being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end and being in communication with the first guidewire-receiving inner lumen; (e) a third guidewire port in the distal end of the catheter body distal to the inflatable member which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the interior of the inflatable member through the inflation lumen.
The invention further provides a method of exchanging a guidewire during an intravascular procedure within a patient's vascular system comprising: (a) providing an intravascular catheter which includes, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal -4d-portion of the catheter body, a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in the catheter body being spaced proximally from the diagnostic or therapeutic means and at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, and a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; (b) disposing the intravascular catheter within the vascular system of the patient with an in-place guidewire disposed within the guidewire-receiving inner lumen with the distal end thereof extending out the third guidewire port into the patient's vascular system and the proximal end extending out the second guidewire port; (c) withdrawing the in-place guidewire from the patient's vascular system by pulling on the proximal end thereof, while holding the intravascular catheter in place so as to maintain access to the location of the in-place guide-wire within the patient's arterial system; and (d) advancing within the guidewire-receiving inner lumen of the intravascular catheter a replacement guidewire, which is disposed within the guidewire-receiving inner lumen with the proximal end of the replacement guidewire extending proximally out of the first guidewire port and distally out the third guidewire port into the patient's vascular system, until the distal end of the guidewire extends beyond the location of the intravascular procedure.
-4e-The invention also provides a method for performing a diagnostic or therapeutic procedure within a patient's vascular system, the steps comprising: (a) providing a first intravascular catheter within the patient's vascular system which comprises, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal portion of the catheter body, a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in the catheter body being spaced proximally from the diagnostic or therapeutic means at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen, and a slit in a wall of the catheter body defining at least in part the guidewire-receiving inner lumen which extends from the first to the second guidewire port;
(b) providing within the patient's vascular system a guidewire which has proximal and distal ends and which is disposed within the guidewire-receiving inner lumen of the first intravascular catheter with a distal end of the guidewire extending out the third guidewire port and a proximal end of the guidewire extending out the first guidewire port;
(c) withdrawing the first intravascular catheter from the patient's vascular system over the guidewire which is -4f-maintained in position within the patient's vascular system;
(d) stripping the catheter body of the first intravascular catheter from the guidewire after it exits the patient's vascular system, with the guidewire passing through the slit in the catheter body until it exits from the second guidewire port, further removing the first intravascular catheter from the patient over the guidewire until the distal tip of the catheter exits the patient and a portion of the guidewire is exposed distal to the distal tip and manually holding the portion of the guidewire exposed distal to the distal tip of the catheter while the catheter is pulled off the guidewire;
(e) inserting the proximal end of the guidewire through a first guidewire port in the distal end of a second intravascular catheter into a guidewire-receiving inner lumen disposed within the second intravascular catheter and out a second guidewire port spaced proximally from diagnostic or therapeutic means on a distal portion of the second intravascular catheter and at least 10 cm from the distal end of the second intravascular catheter; and advancing the second intravascular catheter over the guidewire until diagnostic or therapeutic means thereon is at location where the diagnostic or therapeutic procedure is to occur.
The catheter body first guidewire port is generally at or close to the proximal end of the catheter body, e.g. not more than about 30 cm therefrom, and, preferably, is not more than about 10 cm from the proximal end of the catheter body.
The second port is spaced closer to the diagnostic or therapeutic means than it is to the first port and -4g-FRO d. ' d' w/.,.. .rd..
generally is at least about 10 cm from the distal end of the catheter body preferably about 15 cm to about ~0 cm.
In a presently preferred embodiment the catheter is a balloon dilatation catheter adapted to perform PTCA procedures. The catheter has a catheter body with two inner lumen extending essentially the length thereof, one of the lumens being a guidewire-receiving lumen and the other lumen being adapted to direct inflation fluid to the interior of a dilatation balloon on the distal portion of the catheter.
One of the attractive features of this catheter design is that the catheter can be used as an over-the-wire type dilatation catheter in a conventional fashion, yet it allows both the catheter and the guidewire to be exchanged during the 1?TCA procedure. Similar catheter designs can be used with other intralurninal catheters which have diagnostic or therapeutic means on the distal portion of the Catheter.
To facilitate the separation of the guide~wire and the catheter during an exchange thereof, a slit is preferably provided in the wall of the catheter body which defines at least part of the guidewire-receiving inner lumen. The slit extends distally from the first guidewire port, preferably to the secomd port. A second slit should extend distally from the second guidewire port to a location proximately adjacent the diagnostic or therapeutic means.
To replace a catheter during an intraluminal procedure such as P'TCA, the in-place catheter is pulled proximally over the guidewire from the proximal end of the catheter. If the in-place guidewire extends out the second guidewire port, the catheter is withdrawn peeling the catheter off of the guidewire through the slit extendirxg distally from the second guidewire until the distal end of the catheter exits -S-~. ~ ~,s a.~.~S.E
the proximal end of the guiding catheter or an adapter attached thereto at which point the guidewire can be manually held in position while the catheter is removed from the proximal end thereof. If the in-place guidewire exits the inner lumen of the catheter from the first guidewire port, the catheter is separated from the guidewire by peeling the catheter away from the guidewire through the slit which extends between the first and second guidewire port as the catheter is withdrawn from the proximal end of the guiding catheter or the adapter attached thereto until the guidewire exits the second guidewire port. The separation of the catheter from the guidewire continues as previously described with the catheter being peeled off of the guidewire through the slit which extends distally from the second guidewire port. The catheter is further withdrawn until the distal end of the catheter exits the proximal end of the guiding catheter and which time the guidewire can be manually held while the catheter is pulled off the proximal end of the guidewire.
Once the catheter has been removed from the proximal end of the in-place guidewire, the proximal end of the in-place guidewire is inserted into the third guidewire port in the distal end of a replacement catheter and then the replacement catheter can be advanced into the patient's vasculature over the in-place guidewire to perform the intravascular procedure. The proximal end of the guidewire can be directed out of either the second or the first guidewire port in the catheter body depending upon the needs of the physician.
The catheter system of the invention also allows for the exchange of an in-place guidewire during an intraluminal procedure while holding the catheter in place so as to maintain access to the intraluminal position. To replace an in-place guidewire, it is removed from the guidewire-receiving inner lumen of the catheter and the patient by pulling on its proximal end which extends out of the patient.
When the in-place guidewire is removed from the inner lumen of the in-place catheter, the replacement guidewire is inserted into the guidewire-receiving inner lumen of the in-place catheter through the proximal guidewire port and advanced through the guidewire-receiving inner lumen and out the third port in the distal end thereof to the desired location within the patient's body lumen. If the in-place guidewire extends out the second guidewire port, it may be desirable to have the replacement guidewire inserted into the proximal portion of the guidewire-receiving inner lumen through the first or proximal guidewire port before the in-place guidewire is removed from the distal portion of the inner lumen so that there is little chance of losing access to the lumenal location by the accidental movement of the in-place catheter. When the replacement guidewire is advanced through the in-place catheter and properly positioned in a desired location therein, e.g. across a stenosis in a patient's artery which is to be dilated, the catheter may then be advanced over the replacement guidewire to the desired location so as to perform the desired diagnostic or therapeutic treatment therein.
The intravascular catheter of the invention also allows for the removal and reinsertion of a guidewire, for example, when the physician wishes to change the shape of the distal end of a guidewire during a procedure. In this operative modality, the in-place guidewire can be withdrawn in essentially the manner described above, the distal tip thereof reshaped and then be reintroduced into the in-place catheter in essentially the same manner as described above.
As will become more apparent from the following detailed description of the invention, the iritravascular catheter system of the invention allows for a wide variety of intravascular procedures which were heretofore impossible to perform with a single catheter system. These and other advantages are described in the following detailed description when taken in conjunction with the accompanying exemplary drawings.
BRTEF' DESCIiIF"hI~Id at~F 'DlE~l~Wil~~:~
Fig. 1 is an elevational view, partially in section, of a dilatation catheter having a guidewire-receiving inner lumen which embodies features of the mvenuon.
Fig. 2 is a transverse, cross-sectional view of the; catheter shown in Fig. 1 taken along the lines 2-2.
Fig. 3 is a transverse, cross-sectional view of the catheter shown in Fig. 1 taken along the lines 3-3.
Fig. 4 is a transverse, cross-sectional view of the catheter shown is Fig.
1 taken along the lines 4-4.
Fig. 5 illustrates an altez°nate embodiment of the invention in which a guidewire extends oirt the proximal end of an adapter mounted on the proximal end of the catheter body.
Fig. 6 is a transverse, cross-sectional view of the catheter shown in Fig. 5 taken along the lines 6-6.
_g_ Fig. 7 is a transverse, cross-sectional view of the catheter shown in Fig. 5 taken along the lines 7-7.
DF'I".AII~ED DF"SCOleT ~F 'I CIE II~FI~1'TI~1~
Figs. 1-4 illustrate a dilatation catheter 10 embodying features of the invention which allow for the exchange of a guidewire while the catheter remains in place within the patient and which also allow for the exchange of the catheter while the guidewire remains in place so as to avoid loss of the arterial position.
The catheter i0 generally comprises an elongated catheter body 11, an inflation lumen 12 adapted to direct inflation fluid from the proximal end of the catheter body, to the interior of an inflatable balloon 13 on the distal portion of the catheter .body and a guidewire-receiving inner lumen 14 extending therein.
i5 The wall of the catheter body 11 defining at least part of the guidewire-receiving inner lumen 14 has a first guidewire port 15 near the proximal end 16 of the catheter body, a s~ond guidewire port 17 distal too the first port and at least about 10 cm from the distal end of the catheter body and a third guidewire port 18 located in the distal end 18 of the catheter body, wherein the second guidewire port 17 is substantially closer to the third port 18 than the first port 15.
An adapter 20 is provided on the proximal end 16 of the catheter body 11 to facilitate the introduction of inflation fluid into the inflation lumen 12 which directs the fluid to the interior of the inflatable balloon 13 through the inflation port 22.
A first slit 23 is preferably provided in the wall of the catheter body which defines the guidewire-receiving inner lumen 14 and extends between the first guidewire part 15 and the s~ond guidewire port 17. A second slit 24 is provided in the wall of the catheter body 11 which further defines the guidewire-receiving inner lumen and extends from the second guidewire port 17 to a location proximal to the proximal end 25 of the balloon 13.
The catheter body 11 has a tubular extension 26 on the distal portion thereof which extends through the interior and out the distal end of the balloon 13.
The tubular extension 26 is adapted to r~eive a guidewire 27 within the inner lumen 14.. The distal end of the guidewire 27 has a coil 28 on the distal end thereof which is shown extending out the third guidewire port 18 in the distal end 19 of the catheter body 11 and has an elongated core member 29 which is shown extending out the second guidewire port 18. The guidewire 27 is shown in phantom in a second position disposed within the proximal section of the inner lumen 14. 'The proximal portion of the elongated core member 29 extends out the first guidewire port 15 near the proximal end 16 of the catheter body 11.
A radiopaque marker 30 is disposed about the tubular extension 26 within the interior of the balloon 13 to facilitate the fluoroscopic observation thereof during an intravascular procedure. ltadiopaque markers 31, 32 and 33 may also be provided an the proximal portion of the catheter body 11 to allow the physician to fluoroscopically determine the location of the first and second guidewire ports and the like during the intravascular procedures.
The catheter system of the invention can be inserted into the patient in a conventional over-the-wire fashion with the guidewire 27 preloaded within the inner lumen 14 and extending proximally out the first or proximal port 15 or it can be inserted in a manner similar to that used to insert catheters having the improvements of Pock and Horzewski et al. wherein the guidewire extends proximally out the second or intermediate guidewire port 17. When it becomes desirable or necessary at any time during the intravascular procedure to remove or replace either the catheter or the guidewire 27 either may be removed by pulling on the proximal end thereof which extends out of the patient while the catheter or guidewire which remains within the patient is held in position in order to maintain access to the desired intravascular 10 location.
If the guidewire is to be remaved, Lhe catheter 10 is held in place while the guidewire is pulled out of the proximal end of the guiding catheter and the catheter 10. ~Nhen the guidewire has been removed from the catheter 10, a 1S replacement guidewire may then be inserted through the first guidewire port 15 which is outside the patient into the inner lumen 14 and advanced therein until the guidewire exits the third guidewire pozt 18 in the distal end 19 of the catheter body 11 into the patient's coronary artery. Once the replacement guidewire 27 is properly positioned within the patient's artery, e.g. across a steposis to be dilated, the dilatation catheter 10 may then be further advanced within the artery over the replacement guidewire to the desired location therein to perform the dilatation or other diagnostic or therapeutic procedure in a conventional manner.
If the catheter 10 is to be removed and the guidewire 27 extends 2S proximally out the first guidewire port 15, the guidewire and the catheter are separated while the catheter is being removed by pulling the guidewire through the slit 23 until the guidewire extends out the second guidewire port 17. The peeling of the catheter off of the guidewire 27 continues through the slit 24 while the catheter is being withdrawn. When the distal end 19 of the catheter exits the proximal end of the guiding catheter, the guidewire may be manually gripped and the catheter removed from the proximal end of the guidewire. If the guidewire 27 exits the second guidewire port 17 the procedure is essentially the same except that there is no need to peel the catheter 10 away from the guidewire through the slit 23 until the guidewire extends through the second guidewire port 17. When the catheter 10 has been removed, the replacement catheter is mounted onto the guidewire 27 by inserting the proximal end of the guidewire through the third guidewire port 18 in the distal end 19 of the replacement catheter and advancing the catheter over the guidewire disposed within the inner lumen 14 of the catheter until the guidewire exits the second guidewire port 17. The replacement catheter may then be inserted into the patient and advanced therein in a conventional manner as described in Yock or Horzewski et al.
In another method the replacement catheter is mounted onto the guidewire 27 as previously described but the replacement catheter is advanced over a the guidewire until the proximal end of the guidewire exits the first guidewire port 15.
In this method the replacement catheter is advanced well within the patient's vasculature before the guidewire exits the proximal end of the guidewire exits the first port, it is manually grasped and the replacement catheter advanced further over the wire into the patient's coronary arteries.
An alternate embodiment of the invention is illustrated in FIGS. 5-7.
This embodiment is quite similar to the embodiment shown is FIGS. 1-4 except that __ CA 02070914 1999-12-15 the guidewire 27 extends through the center arm of the two arm adaptor 35 on the proximal end of the catheter body 11.1fie corresponding parts of this embodiment are numbered the same as the parts of the embodiments shown in FIGS. 1-4. The first guidewire port 15 in this embodiment (not shown in the drawings) is in the proximal end 16 of the catheter body 11 and opens to the adapter 35. The use of this embodiment is the essentially the same as the embodiment shown in FIGS. 1-4.
The adaptor 35 is modified to include a slit 44 which is continuous with the slit 23 in the catheter body 11.
The catheter body 11 can be formed by conventional techniques, e. g.
extruding, from materials already found useful in intravascular catheters such a polyethylene, polyimide, polyvinyl chloride, polyesters and composite materials such as described in U.S. Patent 4,981,478 (Evard et al.), The various components of the catheter can be joined by suitable adhesive such as the acrylonitrile based adhesive sold as Loctite"' 405. Heat shrinking may also be employed where appropriate. A venting means may be provided to remove air from the interior of the balloon before the catheter is inserted into the patient such as described in U.S. Patent 4,638,805 (Powell) and U.S. Patent 4,821,722 (Samson et al. ).
The size of the catheter body 11 and the guidewire-receiving inner lumen 14 thereof to a large extent are determined by the size of the guidewires 27 to be employed and the size of the artery or other body lumen through which the catheter must pass. Generally, the diameter of the inner lumen is sufficient to accommodate the guidewire and to allow it to be slidably disposed therein. The diameters of guidewires for coronary use can vary from about 0.008 to about 0.035 inch (0.2-0.~9 mm) in diameter, and the inner diameter of the guidewire-receiving inner lumen 14 of the catheter 10 should be about 0.001 to about 0.005 inch (0.025-0.127 mm) larger than the diameter of the guidewire. The catheter body 11 is sufficiently long to extend from outside the proximal end of a guiding catheter, which S likewise extends out of the patient, to a stenasis to be treated within the patient's vascular system (or other desired location therein), e. g. from about 100 to about 150 cm when a ~eldinger approach through the femoral artery is employed to introduce the catheter i0 into the patient's vasculature. The wall forming the catheter must be of sufficient thickness and strength so that it can be pushed over the guidewire 27 to the desired location within the patient's blood vessel. If desired the proximal portion of the dilatation catheter 10 can be provided with a stiffening means to facilitate the advancement of the catheter within the patient's vasculature.
While the invention has been described herein in terms of certain presently preferred embodiments directed to balloon dilatation catheters for use in coronary angioplasty procedures, those skilled in the art will recognize that the catheter of the invention may be used in a variety of body lumens. For example, the invention can be utilized in a wide variety of diagnostic and therapeutic intravascular catheters. Additionally, the catheter body may be of concentric construction rather than the dual lumen construction shaven herein. ~ther modifications and improvements may be made to the invention without departing from the scope thereof.
Claims (29)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An intravascular catheter system which is adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof while the catheter system is disposed within the patient's vascular system or the catheter while the guidewire is disposed within the patient's vasculature, the system comprising:
(a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
(a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
2. The catheter system of claim 1 wherein a slit is provided in the wall of the catheter body defining at least in part the guidewire-receiving lumen which extends between the first and second guidewire ports to facilitate the separation between the guidewire and the catheter body.
3. The catheter system of claim 1 wherein a slit is provided in the wall of the catheter body defining at least in part the guidewire-receiving lumen which extends distally from the second guidewire port to a location proximal from the diagnostic or therapeutic means to facilitate the separation between the guidewire and the catheter body.
4. The intravascular catheter of any one of claims 1 to 3, wherein the means for performing diagnostic or therapeutic procedures include an inflatable member.
5. The intravascular catheter of any one of claims 1 to 4, wherein the means for performing diagnostic or therapeutic procedures is an inflatable angioplasty balloon.
6. The intravascular catheter of any one of claims 1 to 5, wherein the second port is space not more than 50 cm from the distal end of the catheter body.
7. The intravascular catheter of any one of claims 1 to 6, wherein the first guidewire port is spaced distally about 0.5 to about 30 cm from the proximal end of the catheter body.
8. The intravascular catheter of claim 4 including an inflation lumen extending within the catheter body from the proximal end thereof to the interior of the inflatable member.
9. The intravascular catheter of any one of claims 1 to 6 or 8 wherein the first guidewire port is located in the proximal end of the catheter body.
10. A dilatation catheter suitable for performing angioplasty procedures within a patient's artery, comprising:
(a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof;
(b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
(a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof;
(b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
11. The dilatation catheter of claim 10 wherein a slit in the wall of the catheter body defining at least part of the guidewire-receiving lumen extends between the first and the second guidewire ports.
12. The dilatation catheter of claim 10 wherein a slit is provided in the wall of the catheter body defining a least part of the guidewire-receiving lumen which extends between the second guidewire port and a location proximally adjacent to the proximal end of the inflatable balloon.
13. An intravascular catheter system which is adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof while the catheter system is disposed within the patient's vascular system or the catheter while the guidewire is disposed within the patient's vasculature, the system comprising:
(a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending from a location at or near the proximal end to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at said location at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
(a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending from a location at or near the proximal end to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at said location at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and (f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
14. The intravascular catheter system of claim 13 wherein the means for performing diagnostic or therapeutic procedures is an inflatable angioplasty balloon and wherein the system has further an inflation lumen extending within the catheter body from the proximal end thereof to the interior of the inflatable balloon, and wherein the first guidewire port is located in the proximal end of the catheter body.
15. The intravascular catheter system of claim 13 or 14 wherein the second port is spaced not more than 50 cm from the distal end of the catheter body.
16. The intravascular catheter system of any one of claims 13 to 15 wherein the first guidewire port is spaced distally about 0.5 to about 30 cm from the proximal end of the catheter body.
17. A dilatation catheter suitable for performing angioplasty procedures within a patient's artery, the catheter comprising:
(a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body from a location at or near the proximal end to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof;
(b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at said location at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
(a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body from a location at or near the proximal end to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof;
(b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen;
(c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at said location at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
18. The catheter system of any one of claims 13 to 17 wherein a slit is provided in the wall of the catheter body defining at least in part the guidewire-receiving lumen which extends distally from the second guidewire port to a location proximal from the diagnostic or therapeutic means or balloon to facilitate the separation between the guidewire and the catheter body.
19. The dilatation catheter of any one of claims 13 to 17 wherein a slit in the wall of the catheter body defining at least part of the guidewire-receiving lumen which extends between the first and second guidewire ports.
20. An intravascular catheter system which is a adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof while the catheter system is disposed within the patient's vascular system, the system comprising:
(a) an elongated catheter body having proximal and distal ends and a first inner lumen adapted to receive a guidewire therein extending to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature and being in communication with a second inner lumen extending within the catheter body;
(c) a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the first guidewire-receiving inner lumen;
(d) a second guidewire port in the catheter body being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the first guidewire-receiving inner lumen; and (f) a slit provided through a wall of the catheter body which extends between the first and second guidewire ports to facilitate the separation between the guidewire and the catheter body.
(a) an elongated catheter body having proximal and distal ends and a first inner lumen adapted to receive a guidewire therein extending to the distal end of the catheter body;
(b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature and being in communication with a second inner lumen extending within the catheter body;
(c) a first guidewire port in the catheter body being at or near the proximal end of the catheter body and being in communication with the first guidewire-receiving inner lumen;
(d) a second guidewire port in the catheter body being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body in communication with the first guidewire-receiving inner lumen; and (f) a slit provided through a wall of the catheter body which extends between the first and second guidewire ports to facilitate the separation between the guidewire and the catheter body.
21. The catheter system of claim 20 wherein a second slit is provided through the wall of the catheter body which extends distally from the second guidewire port to a location proximal from the diagnostic or therapeutic means to facilitate the separation between the guidewire and the catheter body.
22. The intravascular catheter of claim 20 or 21 wherein the means for performing diagnostic or therapeutic procedures include an inflatable member.
23. The intravascular catheter of claim 20 or 21 wherein the means for performing diagnostic or therapeutic procedures is an inflatable angioplasty balloon.
24. The intravascular catheter of any one of claims 20 to 23 wherein the second port is spaced not more than 50 cm from the distal end of the catheter body.
25. The intravascular catheter of any one of claims 20 to 24 wherein the first guidewire port is spaced distally about 0.5 to about 30 cm from the proximal end of the catheter body.
26. The intravascular catheter of any one of claims 20 to 24 wherein the first guidewire port is located in the proximal end of the catheter body.
27. A readily exchangeable dilatation catheter suitable for performing angioplasty procedures within a patient's artery which permits the exchange of a guidewire during an angioplasty procedure, comprising:
(a) an elongated catheter body having proximal and distal ends, a first lumen adapted to receive a guidewire and extending within the catheter body to the distal end thereof and a second lumen adapted to direct inflation fluid therethrough and extending within the catheter body a distal portion thereof;
(b) an inflatable member on a distal portion of the catheter body having an interior in fluid communication with the second lumen;
(c) a first guidewire port in the catheter body being located at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the catheter body being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end and being in communication with the first guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body distal to the inflatable member which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the interior of the inflatable member through the inflation lumen.
(a) an elongated catheter body having proximal and distal ends, a first lumen adapted to receive a guidewire and extending within the catheter body to the distal end thereof and a second lumen adapted to direct inflation fluid therethrough and extending within the catheter body a distal portion thereof;
(b) an inflatable member on a distal portion of the catheter body having an interior in fluid communication with the second lumen;
(c) a first guidewire port in the catheter body being located at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen;
(d) a second guidewire port in the catheter body being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end and being in communication with the first guidewire-receiving inner lumen;
(e) a third guidewire port in the distal end of the catheter body distal to the inflatable member which is in communication with the guidewire-receiving inner lumen; and (f) means on the proximal end of the catheter body to direct inflation fluid to the interior of the inflatable member through the inflation lumen.
28. The dilatation catheter in claim 27 wherein a slit is provided through the wall of the catheter body which extends between the first and the second guidewire ports.
29. The dilatation catheter of claim 28 wherein a second slit is provided in the wall of the catheter body which extends between the second guidewire port and a location proximal to the proximal end of the inflatable member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US713,973 | 1985-03-20 | ||
| US07/713,973 US5135535A (en) | 1991-06-11 | 1991-06-11 | Catheter system with catheter and guidewire exchange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2070914A1 CA2070914A1 (en) | 1992-12-12 |
| CA2070914C true CA2070914C (en) | 2000-09-26 |
Family
ID=24868307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002070914A Expired - Fee Related CA2070914C (en) | 1991-06-11 | 1992-06-10 | Dilatation catheter and guidewire exchange |
Country Status (5)
| Country | Link |
|---|---|
| US (6) | US5135535A (en) |
| EP (2) | EP0518205B1 (en) |
| JP (2) | JPH0623055A (en) |
| CA (1) | CA2070914C (en) |
| DE (3) | DE712639T1 (en) |
Families Citing this family (269)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004291A (en) * | 1988-02-29 | 1999-12-21 | Scimed Life Systems, Inc. | Intravascular catheter with distal guide wire lumen and transition |
| US5425711A (en) * | 1988-02-29 | 1995-06-20 | Scimed Life Systems, Inc. | Intravascular catheter with distal guide wire lumen and transition member |
| US5395332A (en) * | 1990-08-28 | 1995-03-07 | Scimed Life Systems, Inc. | Intravascualr catheter with distal tip guide wire lumen |
| US5527292A (en) * | 1990-10-29 | 1996-06-18 | Scimed Life Systems, Inc. | Intravascular device for coronary heart treatment |
| CA2095043A1 (en) * | 1990-10-29 | 1992-04-30 | Daniel O. Adams | Guide catheter system for angioplasty balloon catheter |
| US6387052B1 (en) | 1991-01-29 | 2002-05-14 | Edwards Lifesciences Corporation | Thermodilution catheter having a safe, flexible heating element |
| EP0578777B1 (en) * | 1991-04-05 | 1998-01-21 | Boston Scientific Corporation | Convertible catheter assembly |
| US6733473B1 (en) * | 1991-04-05 | 2004-05-11 | Boston Scientific Corporation | Adjustably stiffenable convertible catheter assembly |
| US5743875A (en) * | 1991-05-15 | 1998-04-28 | Advanced Cardiovascular Systems, Inc. | Catheter shaft with an oblong transverse cross-section |
| US5395335A (en) * | 1991-05-24 | 1995-03-07 | Jang; G. David | Universal mode vascular catheter system |
| US6821287B1 (en) | 1991-05-24 | 2004-11-23 | Advanced Cardiovascular Systems, Inc. | Multi-mode vascular catheter system |
| US5554118A (en) * | 1991-05-24 | 1996-09-10 | Jang; G. David | Universal mode vascular catheter system |
| EP0517654B1 (en) * | 1991-06-03 | 1996-07-17 | Schneider (Europe) Ag | Catheter system to mechanically dilate the coronary stenosis |
| EP0592720B1 (en) * | 1991-06-10 | 1998-07-29 | Cordis Corporation | Replaceable dilatation catheter |
| US5135535A (en) | 1991-06-11 | 1992-08-04 | Advanced Cardiovascular Systems, Inc. | Catheter system with catheter and guidewire exchange |
| US7074231B2 (en) * | 1991-06-13 | 2006-07-11 | Advanced Cardiovascular Systems, Inc. | Convertible mode vascular catheter system |
| US5833706A (en) * | 1991-07-05 | 1998-11-10 | Scimed Life Systems, Inc. | Single operator exchange perfusion catheter having a distal catheter shaft section |
| US5490837A (en) * | 1991-07-05 | 1996-02-13 | Scimed Life Systems, Inc. | Single operator exchange catheter having a distal catheter shaft section |
| US5645533A (en) * | 1991-07-05 | 1997-07-08 | Scimed Life Systems, Inc. | Apparatus and method for performing an intravascular procedure and exchanging an intravascular device |
| US5976107A (en) * | 1991-07-05 | 1999-11-02 | Scimed Life Systems. Inc. | Catheter having extendable guide wire lumen |
| US5324269A (en) * | 1991-09-19 | 1994-06-28 | Baxter International Inc. | Fully exchangeable dual lumen over-the-wire dilatation catheter with rip seam |
| US5389087A (en) * | 1991-09-19 | 1995-02-14 | Baxter International Inc. | Fully exchangeable over-the-wire catheter with rip seam and gated side port |
| US5263959A (en) * | 1991-10-21 | 1993-11-23 | Cathco, Inc. | Dottering auger catheter system and method |
| US5571087A (en) * | 1992-02-10 | 1996-11-05 | Scimed Life Systems, Inc. | Intravascular catheter with distal tip guide wire lumen |
| US5407432A (en) * | 1992-03-30 | 1995-04-18 | Pameda N.V. | Method of positioning a stent |
| US5263932A (en) * | 1992-04-09 | 1993-11-23 | Jang G David | Bailout catheter for fixed wire angioplasty |
| US5401241A (en) * | 1992-05-07 | 1995-03-28 | Inamed Development Co. | Duodenal intubation catheter |
| US6770066B1 (en) | 1992-05-11 | 2004-08-03 | Ballard Medical Products | Multi-lumen endoscopic catheter |
| US5342297A (en) * | 1992-07-10 | 1994-08-30 | Jang G David | Bailout receptacle for angioplasty catheter |
| EP0652786B1 (en) * | 1992-07-27 | 1998-07-22 | Schneider (Usa) Inc. | Dilatation catheter with injection lumen |
| US5364376A (en) * | 1992-08-04 | 1994-11-15 | Danforth Biomedical Incorporated | Convertible catheter |
| US5330444A (en) * | 1992-09-15 | 1994-07-19 | Intertherapy, Inc. | Catheter tip with a low friction lining and method of use |
| US5295492A (en) * | 1992-10-09 | 1994-03-22 | C. R. Bard, Inc. | Device for connecting a guidewire to an extension guidewire |
| US5356418A (en) * | 1992-10-28 | 1994-10-18 | Shturman Cardiology Systems, Inc. | Apparatus and method for rotational atherectomy |
| US5315747A (en) * | 1992-10-30 | 1994-05-31 | Pameda N.V. | Method of preparing a balloon dilatation catheter |
| US5531690A (en) * | 1992-10-30 | 1996-07-02 | Cordis Corporation | Rapid exchange catheter |
| US5549556A (en) * | 1992-11-19 | 1996-08-27 | Medtronic, Inc. | Rapid exchange catheter with external wire lumen |
| US5330499A (en) * | 1992-12-28 | 1994-07-19 | Nozomu Kanesaka | Catheter exchange system |
| JPH08500757A (en) * | 1992-12-30 | 1996-01-30 | シュナイダー・（ユーエスエイ）・インコーポレーテッド | Device for deploying a stent implantable in the body |
| US5370691A (en) * | 1993-01-26 | 1994-12-06 | Target Therapeutics, Inc. | Intravascular inflatable stent |
| CA2116724A1 (en) * | 1993-03-12 | 1994-09-13 | Richard A. Gambale | Windowed catheter and method of use |
| US5403274A (en) * | 1993-03-15 | 1995-04-04 | Cannon; Louis A. | Perfusion catheter and method of use |
| US5415639A (en) * | 1993-04-08 | 1995-05-16 | Scimed Life Systems, Inc. | Sheath and method for intravascular treatment |
| US5454785A (en) * | 1993-04-12 | 1995-10-03 | C. R. Bard, Inc. | Method of withdrawing and exchanging catheters |
| US5334147A (en) * | 1993-04-28 | 1994-08-02 | Cordis Corporation | Rapid exchange type dilatation catheter |
| US5334187A (en) * | 1993-05-21 | 1994-08-02 | Cathco, Inc. | Balloon catheter system with slit opening handle |
| US5413559A (en) * | 1993-07-08 | 1995-05-09 | Sirhan; Motasim M. | Rapid exchange type over-the-wire catheter |
| WO1995002430A1 (en) * | 1993-07-15 | 1995-01-26 | Advanced Cardiovascular Systems, Inc. | Rapid exchange type intraluminal catheter with guiding element |
| US5540659A (en) * | 1993-07-15 | 1996-07-30 | Teirstein; Paul S. | Irradiation catheter and method of use |
| US5336184A (en) * | 1993-07-15 | 1994-08-09 | Teirstein Paul S | Rapid exchange catheter |
| US5472425A (en) * | 1993-07-15 | 1995-12-05 | Teirstein; Paul S. | Rapid exchange catheter |
| US6196996B1 (en) | 1993-07-15 | 2001-03-06 | Paul S. Teirstein | Irradiation catheter and method of use |
| CA2173482A1 (en) * | 1993-10-07 | 1995-04-13 | Erik Andersen | Dilatation catheter |
| US5387226A (en) * | 1994-01-14 | 1995-02-07 | Baxter International Inc. | Rapid exchange catheter |
| US5417669A (en) * | 1994-02-01 | 1995-05-23 | Cordis Corporation | Catheter exchange method and apparatus |
| US5489271A (en) * | 1994-03-29 | 1996-02-06 | Boston Scientific Corporation | Convertible catheter |
| US5549557A (en) * | 1994-08-05 | 1996-08-27 | Medtronic, Inc. | Catheter balloon proximal heat bond on extended shaft |
| US5458639A (en) * | 1994-08-05 | 1995-10-17 | Medtronic, Inc. | Catheter balloon distal bond |
| US5470315A (en) * | 1994-09-20 | 1995-11-28 | Scimed Life Systems, Inc. | Over-the-wire type balloon catheter with proximal hypotube |
| US5836306A (en) * | 1994-12-23 | 1998-11-17 | Bard Connaught | Exchange accessory for use with a monorail catheter |
| DE69534065T2 (en) * | 1994-12-27 | 2005-09-15 | Advanced Cardiovascular Systems, Inc., Santa Clara | CATHETER WITH REINFORCED LONG-SECTION CROSS-SECTION |
| US5667493A (en) * | 1994-12-30 | 1997-09-16 | Janacek; Jaroslav | Dilation catheter |
| FR2736554B1 (en) * | 1995-07-10 | 1997-08-29 | Devonec Marian | CATHETER FORM OF A SEPARABLE CATHETERIZATION MEANS AND INTRODUCTION MEANS USEFUL FOR THE TREATMENT OF PROSTATIC OBSTACLES IN MAN |
| US5690642A (en) | 1996-01-18 | 1997-11-25 | Cook Incorporated | Rapid exchange stent delivery balloon catheter |
| US5658262A (en) * | 1996-05-17 | 1997-08-19 | Cordis Corporation | Catheter exchange method |
| US6007517A (en) * | 1996-08-19 | 1999-12-28 | Anderson; R. David | Rapid exchange/perfusion angioplasty catheter |
| US6582401B1 (en) | 1996-09-13 | 2003-06-24 | Scimed Life Sytems, Inc. | Multi-size convertible catheter |
| US6007522A (en) * | 1996-09-13 | 1999-12-28 | Boston Scientific Corporation | Single operator exchange biliary catheter |
| US5921971A (en) * | 1996-09-13 | 1999-07-13 | Boston Scientific Corporation | Single operator exchange biliary catheter |
| US6606515B1 (en) | 1996-09-13 | 2003-08-12 | Scimed Life Systems, Inc. | Guide wire insertion and re-insertion tools and methods of use |
| US6346093B1 (en) | 1996-09-13 | 2002-02-12 | Scimed Life Systems, Inc. | Single operator exchange biliary catheter with common distal lumen |
| US6096009A (en) * | 1996-09-13 | 2000-08-01 | Boston Scientific Corporation | Guidewire and catheter locking device and method |
| US6520951B1 (en) | 1996-09-13 | 2003-02-18 | Scimed Life Systems, Inc. | Rapid exchange catheter with detachable hood |
| US5782741A (en) * | 1996-11-12 | 1998-07-21 | Guidant Coropration | Two-stage treatment wire |
| US5807355A (en) * | 1996-12-09 | 1998-09-15 | Advanced Cardiovascular Systems, Inc. | Catheter with rapid exchange and OTW operative modes |
| US5779731A (en) * | 1996-12-20 | 1998-07-14 | Cordis Corporation | Balloon catheter having dual markers and method |
| JP3713871B2 (en) * | 1997-02-26 | 2005-11-09 | 株式会社カネカ | Rapid exchange medical balloon catheter |
| WO1998041277A1 (en) * | 1997-03-19 | 1998-09-24 | Microvena Corporation | Improved multi-lumen catheter |
| ATE265247T1 (en) * | 1997-06-10 | 2004-05-15 | Schneider Europ Gmbh | CATHETER SYSTEM |
| US6190352B1 (en) * | 1997-10-01 | 2001-02-20 | Boston Scientific Corporation | Guidewire compatible port and method for inserting same |
| US6086008A (en) * | 1997-12-22 | 2000-07-11 | Deka Products Limited Partnership | Apparatus and method for permitting introduction and withdrawal of a catheter |
| US6056719A (en) * | 1998-03-04 | 2000-05-02 | Scimed Life Systems, Inc. | Convertible catheter incorporating a collapsible lumen |
| US6475187B1 (en) | 1998-03-04 | 2002-11-05 | Scimed Life Systems, Inc. | Convertible catheter incorporating distal force transfer mechanism |
| JPH11262529A (en) * | 1998-03-18 | 1999-09-28 | Nippon Zeon Co Ltd | Balloon catheter |
| US5947927A (en) * | 1998-03-23 | 1999-09-07 | Scimed Life Systems, Inc. | Convertible catheter having a single proximal lumen |
| IT1300577B1 (en) | 1998-05-29 | 2000-05-23 | Invatec Srl | STRUCTURE OF EXPANSION CATHETER |
| US6196995B1 (en) | 1998-09-30 | 2001-03-06 | Medtronic Ave, Inc. | Reinforced edge exchange catheter |
| US20040024393A1 (en) * | 2002-08-02 | 2004-02-05 | Henry Nita | Therapeutic ultrasound system |
| US8034100B2 (en) | 1999-03-11 | 2011-10-11 | Endologix, Inc. | Graft deployment system |
| US6287319B1 (en) * | 1999-03-30 | 2001-09-11 | Amed Systems, Inc. | Cannula with balloon tip |
| US6440161B1 (en) * | 1999-07-07 | 2002-08-27 | Endologix, Inc. | Dual wire placement catheter |
| US6605062B1 (en) | 1999-09-02 | 2003-08-12 | Advanced Cardiovascular Systems, Inc. | Catheter for guidewire support or exchange |
| US7022100B1 (en) | 1999-09-03 | 2006-04-04 | A-Med Systems, Inc. | Guidable intravascular blood pump and related methods |
| JP2001095923A (en) | 1999-09-28 | 2001-04-10 | Terumo Corp | Catheter |
| US7811250B1 (en) * | 2000-02-04 | 2010-10-12 | Boston Scientific Scimed, Inc. | Fluid injectable single operator exchange catheters and methods of use |
| US7238168B2 (en) * | 2000-06-02 | 2007-07-03 | Avantec Vascular Corporation | Exchangeable catheter |
| US6569180B1 (en) * | 2000-06-02 | 2003-05-27 | Avantec Vascular Corporation | Catheter having exchangeable balloon |
| US20030055377A1 (en) * | 2000-06-02 | 2003-03-20 | Avantec Vascular Corporation | Exchangeable catheter |
| EP1174076A3 (en) | 2000-07-18 | 2002-10-16 | BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin | Device for automatically performing diagnostic and/or therapeutic actions in body cavities |
| US6527746B1 (en) * | 2000-08-03 | 2003-03-04 | Ev3, Inc. | Back-loading catheter |
| US6595983B2 (en) | 2000-12-07 | 2003-07-22 | Jan K. Voda | Guide or diagnostic catheter for right coronary artery |
| US6592549B2 (en) * | 2001-03-14 | 2003-07-15 | Scimed Life Systems, Inc. | Rapid exchange stent delivery system and associated components |
| EP1258230A3 (en) * | 2001-03-29 | 2003-12-10 | CardioSafe Ltd | Balloon catheter device |
| US6764484B2 (en) * | 2001-03-30 | 2004-07-20 | Scimed Life Systems, Inc. | C-channel to o-channel converter for a single operator exchange biliary catheter |
| US6599290B2 (en) * | 2001-04-17 | 2003-07-29 | Ebi, L.P. | Anterior cervical plating system and associated method |
| US6679909B2 (en) * | 2001-07-31 | 2004-01-20 | Advanced Cardiovascular Systems, Inc. | Rapid exchange delivery system for self-expanding stent |
| US6827718B2 (en) | 2001-08-14 | 2004-12-07 | Scimed Life Systems, Inc. | Method of and apparatus for positioning and maintaining the position of endoscopic instruments |
| GB0121980D0 (en) | 2001-09-11 | 2001-10-31 | Cathnet Science Holding As | Expandable stent |
| US6716223B2 (en) | 2001-11-09 | 2004-04-06 | Micrus Corporation | Reloadable sheath for catheter system for deploying vasoocclusive devices |
| US7594926B2 (en) | 2001-11-09 | 2009-09-29 | Boston Scientific Scimed, Inc. | Methods, systems and devices for delivering stents |
| US10258340B2 (en) * | 2001-11-09 | 2019-04-16 | DePuy Synthes Products, Inc. | Reloadable sheath for catheter system for deploying vasoocclusive devices |
| JP4350515B2 (en) | 2001-11-09 | 2009-10-21 | ルビコン・メデイカル・インコーポレイテツド | Stent delivery device |
| US8080048B2 (en) | 2001-12-03 | 2011-12-20 | Xtent, Inc. | Stent delivery for bifurcated vessels |
| US7137993B2 (en) | 2001-12-03 | 2006-11-21 | Xtent, Inc. | Apparatus and methods for delivery of multiple distributed stents |
| US7351255B2 (en) | 2001-12-03 | 2008-04-01 | Xtent, Inc. | Stent delivery apparatus and method |
| US7182779B2 (en) | 2001-12-03 | 2007-02-27 | Xtent, Inc. | Apparatus and methods for positioning prostheses for deployment from a catheter |
| US7892273B2 (en) | 2001-12-03 | 2011-02-22 | Xtent, Inc. | Custom length stent apparatus |
| US7147656B2 (en) | 2001-12-03 | 2006-12-12 | Xtent, Inc. | Apparatus and methods for delivery of braided prostheses |
| US20040186551A1 (en) | 2003-01-17 | 2004-09-23 | Xtent, Inc. | Multiple independent nested stent structures and methods for their preparation and deployment |
| US7294146B2 (en) | 2001-12-03 | 2007-11-13 | Xtent, Inc. | Apparatus and methods for delivery of variable length stents |
| US20030135266A1 (en) * | 2001-12-03 | 2003-07-17 | Xtent, Inc. | Apparatus and methods for delivery of multiple distributed stents |
| US7270668B2 (en) * | 2001-12-03 | 2007-09-18 | Xtent, Inc. | Apparatus and methods for delivering coiled prostheses |
| US7309350B2 (en) | 2001-12-03 | 2007-12-18 | Xtent, Inc. | Apparatus and methods for deployment of vascular prostheses |
| US6689144B2 (en) | 2002-02-08 | 2004-02-10 | Scimed Life Systems, Inc. | Rapid exchange catheter and methods for delivery of vaso-occlusive devices |
| US7349995B2 (en) * | 2002-03-07 | 2008-03-25 | Intel Corporation | Computing device with scalable logic block to respond to data transfer requests |
| US7717934B2 (en) * | 2002-06-14 | 2010-05-18 | Ev3 Inc. | Rapid exchange catheters usable with embolic protection devices |
| US6966890B2 (en) | 2002-08-23 | 2005-11-22 | Medtronic Vascular, Inc. | Convertible balloon catheter and manufacture thereof |
| US20040059406A1 (en) * | 2002-09-20 | 2004-03-25 | Cully Edward H. | Medical device amenable to fenestration |
| US7534223B2 (en) | 2002-10-08 | 2009-05-19 | Boston Scientific Scimed, Inc. | Catheter with formed guide wire ramp |
| US7485139B1 (en) | 2002-10-10 | 2009-02-03 | Ciamacco Jr Sam | Stent delivery and deployment system |
| US7141050B2 (en) * | 2002-10-18 | 2006-11-28 | Wilson-Cook Medical Inc. | Catheter with a plurality of wire guide access parts |
| US20050261719A1 (en) * | 2002-11-25 | 2005-11-24 | Israel Chermoni | Catheter and method of its use |
| EP1435253B1 (en) | 2002-12-31 | 2007-01-17 | Abbott Laboratories Vascular Enterprises Limited | Catheter having a more flexible part between shaft and tip and method of manufacturing thereof |
| US20040143240A1 (en) * | 2003-01-17 | 2004-07-22 | Armstrong Joseph R. | Adjustable length catheter |
| US7625337B2 (en) * | 2003-01-17 | 2009-12-01 | Gore Enterprise Holdings, Inc. | Catheter assembly |
| US8016752B2 (en) | 2003-01-17 | 2011-09-13 | Gore Enterprise Holdings, Inc. | Puncturable catheter |
| US9433745B2 (en) * | 2003-01-17 | 2016-09-06 | W.L. Gore & Associates, Inc. | Puncturing tool for puncturing catheter shafts |
| US8608691B2 (en) * | 2003-02-07 | 2013-12-17 | Pierpont Family Limited Partnership | Angioplasty method and means for performing angioplasty |
| DE602004003266D1 (en) * | 2003-02-07 | 2007-01-04 | Pierpont Family Ltd Partnershi | Catheter system for angioplasty |
| US6893393B2 (en) * | 2003-02-19 | 2005-05-17 | Boston Scientific Scimed., Inc. | Guidewire locking device and method |
| IL154813A0 (en) * | 2003-03-09 | 2003-10-31 | David Rott | Device and method for advancing a wire |
| US20040193034A1 (en) * | 2003-03-28 | 2004-09-30 | Lawrence Wasicek | Combined long rail/short rail IVUS catheter |
| US7241308B2 (en) * | 2003-06-09 | 2007-07-10 | Xtent, Inc. | Stent deployment systems and methods |
| US20040254528A1 (en) * | 2003-06-12 | 2004-12-16 | Adams Daniel O. | Catheter with removable wire lumen segment |
| US6840569B1 (en) * | 2003-07-22 | 2005-01-11 | Arthur Donald Leigh | Caravan |
| US8211087B2 (en) * | 2003-07-31 | 2012-07-03 | Cook Medical Technologies Llc | Distal wire stop |
| US8206320B2 (en) * | 2003-07-31 | 2012-06-26 | Cook Medical Technologies Llc | System and method for introducing multiple medical devices |
| US7662328B2 (en) * | 2003-09-02 | 2010-02-16 | Boston Scientific Scimed, Inc. | Proximal guidewire port |
| US20050209674A1 (en) * | 2003-09-05 | 2005-09-22 | Kutscher Tuvia D | Balloon assembly (V) |
| US8535344B2 (en) | 2003-09-12 | 2013-09-17 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection and removing embolic material |
| US7699865B2 (en) | 2003-09-12 | 2010-04-20 | Rubicon Medical, Inc. | Actuating constraining mechanism |
| US7662145B2 (en) * | 2003-09-17 | 2010-02-16 | Prostalund Operations Ab | Partial-length indwelling urinary catheter and method permitting selective urine discharge |
| US7766899B2 (en) * | 2003-09-17 | 2010-08-03 | Prostalund Operations Ab | Partial-length, indwelling prostatic catheter using coiled inflation tube as an anchor and methods of draining urine and flushing clots |
| US7367967B2 (en) * | 2003-09-17 | 2008-05-06 | Boston Scientific Scimed, Inc. | Catheter with sheathed hypotube |
| US8636714B2 (en) * | 2003-09-22 | 2014-01-28 | Boston Scientific Scimed, Inc. | Microcatheter with sleeved guidewire port |
| US7553324B2 (en) * | 2003-10-14 | 2009-06-30 | Xtent, Inc. | Fixed stent delivery devices and methods |
| US20050080475A1 (en) * | 2003-10-14 | 2005-04-14 | Xtent, Inc. A Delaware Corporation | Stent delivery devices and methods |
| US7192440B2 (en) * | 2003-10-15 | 2007-03-20 | Xtent, Inc. | Implantable stent delivery devices and methods |
| US6927605B2 (en) * | 2003-11-07 | 2005-08-09 | Hewlett-Packard Development Company, L.P. | System and method for dynamically varying a clock signal |
| US7500975B2 (en) * | 2003-11-19 | 2009-03-10 | Covidien Ag | Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument |
| US7867271B2 (en) | 2003-11-20 | 2011-01-11 | Advanced Cardiovascular Systems, Inc. | Rapid-exchange delivery systems for self-expanding stents |
| CA2547021A1 (en) * | 2003-11-25 | 2005-06-09 | F.D. Cardio Ltd. | Stent positioning using inflation tube |
| US7022104B2 (en) | 2003-12-08 | 2006-04-04 | Angioscore, Inc. | Facilitated balloon catheter exchange |
| US7403966B2 (en) * | 2003-12-08 | 2008-07-22 | Freescale Semiconductor, Inc. | Hardware for performing an arithmetic function |
| US20070156225A1 (en) * | 2003-12-23 | 2007-07-05 | Xtent, Inc. | Automated control mechanisms and methods for custom length stent apparatus |
| US7326236B2 (en) | 2003-12-23 | 2008-02-05 | Xtent, Inc. | Devices and methods for controlling and indicating the length of an interventional element |
| US7867218B1 (en) | 2004-02-24 | 2011-01-11 | Voda Heart Technology, Llc | Steerable catheter for right coronary artery |
| JP4468721B2 (en) * | 2004-03-16 | 2010-05-26 | オリンパス株式会社 | Endoscopic treatment instrument system |
| US20050216044A1 (en) * | 2004-03-25 | 2005-09-29 | Hong Mun K | Total occlusion recanalization facilitating device |
| US7323006B2 (en) * | 2004-03-30 | 2008-01-29 | Xtent, Inc. | Rapid exchange interventional devices and methods |
| US7328701B2 (en) | 2004-04-07 | 2008-02-12 | Green Philip A | Variable size endotracheal tube |
| US7942913B2 (en) * | 2004-04-08 | 2011-05-17 | Ebi, Llc | Bone fixation device |
| US20050228477A1 (en) * | 2004-04-09 | 2005-10-13 | Xtent, Inc. | Topographic coatings and coating methods for medical devices |
| EP1789126A4 (en) * | 2004-05-21 | 2008-03-12 | Minvasys Sa | Guidewire separator device and method of use |
| US7785318B2 (en) * | 2004-05-27 | 2010-08-31 | Abbott Laboratories | Catheter having plurality of stiffening members |
| US20070078439A1 (en) * | 2004-05-27 | 2007-04-05 | Axel Grandt | Multiple lumen catheter and method of making same |
| US7785439B2 (en) | 2004-09-29 | 2010-08-31 | Abbott Laboratories Vascular Enterprises Limited | Method for connecting a catheter balloon with a catheter shaft of a balloon catheter |
| US7628769B2 (en) * | 2004-05-27 | 2009-12-08 | Abbott Laboratories | Catheter having overlapping stiffening members |
| ATE442879T1 (en) * | 2004-05-27 | 2009-10-15 | Abbott Lab | CATHETER WITH FIRST AND SECOND GUIDE WIRE TUBE AND GAP IN BETWEEN |
| US7658723B2 (en) * | 2004-05-27 | 2010-02-09 | Abbott Laboratories | Catheter having plurality of stiffening members |
| WO2005118045A1 (en) * | 2004-05-27 | 2005-12-15 | Abbott Laboratories | Catheter having main body portion with coil-defined guidewire passage |
| US7794448B2 (en) * | 2004-05-27 | 2010-09-14 | Abbott Laboratories | Multiple lumen catheter and method of making same |
| US7815627B2 (en) * | 2004-05-27 | 2010-10-19 | Abbott Laboratories | Catheter having plurality of stiffening members |
| US9289576B2 (en) * | 2004-06-17 | 2016-03-22 | W. L. Gore & Associates, Inc. | Catheter assembly |
| US20050288766A1 (en) * | 2004-06-28 | 2005-12-29 | Xtent, Inc. | Devices and methods for controlling expandable prostheses during deployment |
| US8317859B2 (en) | 2004-06-28 | 2012-11-27 | J.W. Medical Systems Ltd. | Devices and methods for controlling expandable prostheses during deployment |
| WO2006015323A2 (en) * | 2004-07-29 | 2006-02-09 | Wilson-Cook Medical Inc. | Catheter with splittable wall shaft and peel tool |
| US20060036233A1 (en) * | 2004-08-12 | 2006-02-16 | Scimed Life Systems, Inc. | Catheter incorporating a guidewire exit ramp |
| US20060064056A1 (en) * | 2004-09-17 | 2006-03-23 | James Coyle | Guiding catheter assembly for embolic protection by proximal occlusion |
| US8414527B2 (en) * | 2004-09-21 | 2013-04-09 | Boston Scientific Scimed, Inc. | Rapid exchange catheters having a sealed guidewire lumen and methods of making the same |
| US20060069424A1 (en) * | 2004-09-27 | 2006-03-30 | Xtent, Inc. | Self-constrained segmented stents and methods for their deployment |
| US7527640B2 (en) * | 2004-12-22 | 2009-05-05 | Ebi, Llc | Bone fixation system |
| US7699862B2 (en) * | 2005-01-25 | 2010-04-20 | Micrus Corporation | Resheathing tool |
| US8480629B2 (en) | 2005-01-28 | 2013-07-09 | Boston Scientific Scimed, Inc. | Universal utility board for use with medical devices and methods of use |
| JP2006223338A (en) * | 2005-02-15 | 2006-08-31 | Humed Co Ltd | Catheter |
| ATE539789T1 (en) * | 2005-02-18 | 2012-01-15 | Tyco Healthcare | QUICKLY REPLACEABLE CATHETER |
| US20060229657A1 (en) * | 2005-03-30 | 2006-10-12 | Wasicek Lawrence D | Single operator exchange embolic protection filter |
| US7402168B2 (en) | 2005-04-11 | 2008-07-22 | Xtent, Inc. | Custom-length stent delivery system with independently operable expansion elements |
| EP1909877A2 (en) * | 2005-05-23 | 2008-04-16 | Abbott Laboratories | Catheter having plurality of stiffening members |
| US7938851B2 (en) | 2005-06-08 | 2011-05-10 | Xtent, Inc. | Devices and methods for operating and controlling interventional apparatus |
| US8157851B2 (en) | 2005-06-08 | 2012-04-17 | Xtent, Inc. | Apparatus and methods for deployment of multiple custom-length prostheses |
| US7955364B2 (en) * | 2005-09-21 | 2011-06-07 | Ebi, Llc | Variable angle bone fixation assembly |
| US8036402B2 (en) * | 2005-12-15 | 2011-10-11 | Harman International Industries, Incorporated | Distortion compensation |
| US20070179587A1 (en) * | 2006-01-30 | 2007-08-02 | Xtent, Inc. | Apparatus and methods for deployment of custom-length prostheses |
| JP2009530060A (en) | 2006-03-20 | 2009-08-27 | エックステント・インコーポレーテッド | Apparatus and method for deploying connected prosthetic segments |
| US20070281117A1 (en) * | 2006-06-02 | 2007-12-06 | Xtent, Inc. | Use of plasma in formation of biodegradable stent coating |
| TR200605770A2 (en) * | 2006-10-16 | 2007-10-22 | Ykk Saglik Hizmetleri Anonim Sirketi | Flexible and rigid catheter resector balloon |
| US20080154186A1 (en) * | 2006-11-07 | 2008-06-26 | Angiodynamics, Inc. | Multiple lumen catheter with proximal port |
| US7766909B2 (en) * | 2006-11-08 | 2010-08-03 | Boston Scientific Scimed, Inc. | Sphincterotome with stiffening member |
| US11298511B2 (en) * | 2006-11-21 | 2022-04-12 | Bridgepoint Medical, Inc. | Endovascular devices and methods for exploiting intramural space |
| WO2008085712A1 (en) | 2007-01-03 | 2008-07-17 | Boston Scientific Limited | Method and apparatus for biliary access and stone retrieval |
| US8523931B2 (en) | 2007-01-12 | 2013-09-03 | Endologix, Inc. | Dual concentric guidewire and methods of bifurcated graft deployment |
| US7815601B2 (en) | 2007-02-05 | 2010-10-19 | Boston Scientific Scimed, Inc. | Rapid exchange enteral stent delivery system |
| ES2592719T3 (en) | 2007-02-12 | 2016-12-01 | Boston Scientific Limited | Endoscope Cap |
| US20080199510A1 (en) * | 2007-02-20 | 2008-08-21 | Xtent, Inc. | Thermo-mechanically controlled implants and methods of use |
| US20080228169A1 (en) * | 2007-03-13 | 2008-09-18 | Schatz Richard A | Over-the-wire catheter with lateral access |
| US8486132B2 (en) | 2007-03-22 | 2013-07-16 | J.W. Medical Systems Ltd. | Devices and methods for controlling expandable prostheses during deployment |
| US8292872B2 (en) * | 2007-06-29 | 2012-10-23 | Cook Medical Technologies Llc | Distal wire stop having adjustable handle |
| US20090076584A1 (en) * | 2007-09-19 | 2009-03-19 | Xtent, Inc. | Apparatus and methods for deployment of multiple custom-length prostheses |
| US8795326B2 (en) * | 2007-10-05 | 2014-08-05 | Covidien Lp | Expanding seal anchor for single incision surgery |
| EP2259830B1 (en) * | 2008-02-05 | 2017-08-16 | Bridgepoint Medical, Inc. | Crossing occlusions in blood vessels |
| US8388521B2 (en) | 2008-05-19 | 2013-03-05 | Boston Scientific Scimed, Inc. | Integrated locking device with active sealing |
| US8343041B2 (en) | 2008-05-19 | 2013-01-01 | Boston Scientific Scimed, Inc. | Integrated locking device with passive sealing |
| US8221494B2 (en) | 2008-02-22 | 2012-07-17 | Endologix, Inc. | Apparatus and method of placement of a graft or graft system |
| US9101503B2 (en) | 2008-03-06 | 2015-08-11 | J.W. Medical Systems Ltd. | Apparatus having variable strut length and methods of use |
| US8236040B2 (en) | 2008-04-11 | 2012-08-07 | Endologix, Inc. | Bifurcated graft deployment systems and methods |
| US20090259290A1 (en) * | 2008-04-14 | 2009-10-15 | Medtronic Vascular, Inc. | Fenestration Segment Stent-Graft and Fenestration Method |
| EP2293838B1 (en) | 2008-07-01 | 2012-08-08 | Endologix, Inc. | Catheter system |
| CN102215780B (en) | 2008-09-25 | 2015-10-14 | 高级分支系统股份有限公司 | Part crimped stent |
| US8769796B2 (en) | 2008-09-25 | 2014-07-08 | Advanced Bifurcation Systems, Inc. | Selective stent crimping |
| US8821562B2 (en) | 2008-09-25 | 2014-09-02 | Advanced Bifurcation Systems, Inc. | Partially crimped stent |
| US8795347B2 (en) | 2008-09-25 | 2014-08-05 | Advanced Bifurcation Systems, Inc. | Methods and systems for treating a bifurcation with provisional side branch stenting |
| US11298252B2 (en) | 2008-09-25 | 2022-04-12 | Advanced Bifurcation Systems Inc. | Stent alignment during treatment of a bifurcation |
| JP5596037B2 (en) * | 2008-10-10 | 2014-09-24 | バイオセンサーズ インターナショナル グループ、リミテッド | Catheter system without equipment |
| WO2010127040A1 (en) | 2009-04-28 | 2010-11-04 | Endologix, Inc. | Apparatus and method of placement of a graft or graft system |
| JP2012525239A (en) | 2009-05-01 | 2012-10-22 | エンドロジックス、インク | Transcutaneous methods and devices for treating dissociation (priority information and incorporation by reference) |
| US10772717B2 (en) | 2009-05-01 | 2020-09-15 | Endologix, Inc. | Percutaneous method and device to treat dissections |
| US8491646B2 (en) | 2009-07-15 | 2013-07-23 | Endologix, Inc. | Stent graft |
| WO2011017123A2 (en) | 2009-07-27 | 2011-02-10 | Endologix, Inc. | Stent graft |
| US8771335B2 (en) * | 2009-09-21 | 2014-07-08 | Boston Scientific Scimed, Inc. | Rapid exchange stent delivery system |
| US20110264098A1 (en) * | 2010-02-26 | 2011-10-27 | Cobbs Charles S | Minimally invasive systems, devices, and surgical methods for performing arthrodesis in the spine |
| WO2011119883A1 (en) | 2010-03-24 | 2011-09-29 | Advanced Bifurcation Systems, Inc. | Stent alignment during treatment of a bifurcation |
| CA2794080A1 (en) | 2010-03-24 | 2011-09-29 | Advanced Bifurcation Systems, Inc. | System and methods for treating a bifurcation |
| US10751206B2 (en) | 2010-06-26 | 2020-08-25 | Scott M. Epstein | Catheter or stent delivery system |
| US20110319902A1 (en) | 2010-06-26 | 2011-12-29 | Scott Epstein | Catheter delivery system |
| JP6261339B2 (en) | 2010-11-02 | 2018-01-17 | エンドロジックス、インク | Apparatus and method for placement of a graft or graft system |
| WO2012068298A1 (en) | 2010-11-17 | 2012-05-24 | Endologix, Inc. | Devices and methods to treat vascular dissections |
| US20120203210A1 (en) * | 2011-02-07 | 2012-08-09 | Schanz Richard W | Urinary catheter and method |
| WO2012109382A2 (en) | 2011-02-08 | 2012-08-16 | Advanced Bifurcation Systems, Inc. | Multi-stent and multi-balloon apparatus for treating bifurcations and methods of use |
| EP2672932B1 (en) | 2011-02-08 | 2018-09-19 | Advanced Bifurcation Systems, Inc. | System for treating a bifurcation with a fully crimped stent |
| WO2012118901A1 (en) | 2011-03-01 | 2012-09-07 | Endologix, Inc. | Catheter system and methods of using same |
| CN102274575B (en) * | 2011-05-17 | 2013-07-17 | 上海微创医疗器械（集团）有限公司 | Balloon dilatation catheter |
| US10849771B2 (en) | 2011-06-27 | 2020-12-01 | Boston Scientific Scimed, Inc. | Stent delivery systems and methods for making and using stent delivery systems |
| US9079000B2 (en) | 2011-10-18 | 2015-07-14 | Boston Scientific Scimed, Inc. | Integrated crossing balloon catheter |
| US8747428B2 (en) | 2012-01-12 | 2014-06-10 | Fischell Innovations, Llc | Carotid sheath with entry and tracking rapid exchange dilators and method of use |
| WO2014107178A1 (en) * | 2013-01-04 | 2014-07-10 | St. Jude Medical Puerto Rico Llc | Rapid exchange temporary blood flow cessation device for large bore closure |
| US10471241B2 (en) | 2013-08-26 | 2019-11-12 | Merit Medical Systems, Inc. | Sheathless guide, rapid exchange dilator and associated methods |
| EP3136975B8 (en) | 2014-04-28 | 2020-04-22 | Koninklijke Philips N.V. | Pre-doped solid substrate for intravascular devices |
| CN104161548B (en) * | 2014-08-27 | 2016-01-13 | 马永红 | A kind of utensil and application thereof for the treatment of arterial occlusion pathological changes |
| CN106794335A (en) * | 2014-09-30 | 2017-05-31 | 科迪斯公司 | For the method and apparatus of shell-less trans-radial conduit insertion |
| JP2018524025A (en) | 2015-06-30 | 2018-08-30 | エンドロジックス、インク | Lock assembly for coupling guidewire to delivery system |
| CN115813455A (en) | 2017-08-11 | 2023-03-21 | 波士顿科学国际有限公司 | Biopsy cap for endoscope |
| WO2019195552A1 (en) * | 2018-04-04 | 2019-10-10 | Qxmedical, Llc | Low profile balloon catheter and related systems and methods |
| US10980653B2 (en) | 2018-10-31 | 2021-04-20 | Anchor Balloon, Llc | System and method for controlled delivery of medical devices into patient bodies |
| BR112022012983A2 (en) | 2019-12-31 | 2022-09-13 | Pandx Ltd | CATHETER AND METHOD TO ISOLATE A REGION IN A HOLLOW ORGAN OF A MAMMALIAN, AND SYSTEM BASED ON THE CATHETER, AND USE OF THE CATHETER |
| WO2023075634A1 (en) | 2021-11-01 | 2023-05-04 | Pandx Ltd | Stent-like catheter for isolating a region in a hollow organ of a mammal, and system based on the catheter |
| WO2023107334A1 (en) * | 2021-12-06 | 2023-06-15 | Radial1, Inc. | Rapid exchange catheter |
| WO2023133220A1 (en) * | 2022-01-05 | 2023-07-13 | The Regents Of The University Of California | Luminal tissue isolation device and methods for using same |
| WO2024033700A1 (en) | 2022-08-12 | 2024-02-15 | Pandica Ltd | Use of a catheter for isolating a region in a hollow organ of a mammal (variants) |
Family Cites Families (73)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262449A (en) | 1964-02-11 | 1966-07-26 | Sorenson Res Corp | Intravenous catheter placement unit with retractable needle |
| US3297030A (en) | 1964-03-13 | 1967-01-10 | Sorenson Res Corp | Catheter placement unit with removable cannulated needle |
| US3550591A (en) | 1968-08-19 | 1970-12-29 | George Kessler | Intravenous catheter unit |
| US3545443A (en) | 1968-09-26 | 1970-12-08 | Amir H Ansari | Suprapubic cystostomy needle |
| US3603311A (en) | 1970-02-19 | 1971-09-07 | Illinois Tool Works | Sliding wedge-type removable guide needle |
| US3682173A (en) | 1970-10-16 | 1972-08-08 | Vicra Sterile Inc | Separable catheter insertion device |
| US3853130A (en) | 1973-12-04 | 1974-12-10 | D Sheridan | Sterile handling catheter assemblies |
| US4054136A (en) | 1975-03-03 | 1977-10-18 | Zeppelin Dieter Von | Cannula for the introduction of a catheter |
| US4037599A (en) | 1976-01-26 | 1977-07-26 | Raulerson James D | Continuous flow catheter device |
| DE2715198A1 (en) | 1976-04-15 | 1977-11-03 | Tauschinski Stefan O | DIVISABLE CANNULES SUITABLE FOR INSERTING A VESSEL CATHETER INTO THE BLOOD TRAIN |
| US4079738A (en) | 1976-09-20 | 1978-03-21 | Sorenson Research Co., Inc. | Needle restraining apparatus |
| US4175564A (en) | 1978-03-13 | 1979-11-27 | Kwak In S | Nasal gastric tube insertion guide and method |
| US4323071A (en) | 1978-04-24 | 1982-04-06 | Advanced Catheter Systems, Inc. | Vascular guiding catheter assembly and vascular dilating catheter assembly and a combination thereof and methods of making the same |
| USRE31855F1 (en) | 1978-12-01 | 1986-08-19 | Tear apart cannula | |
| US4411055A (en) | 1980-05-19 | 1983-10-25 | Advanced Cardiovascular Systems, Inc. | Vascular guiding catheter assembly and vascular dilating catheter assembly and a combination thereof and methods for making the same |
| US4439185A (en) | 1981-10-21 | 1984-03-27 | Advanced Cardiovascular Systems, Inc. | Inflating and deflating device for vascular dilating catheter assembly |
| US4585013A (en) | 1981-04-20 | 1986-04-29 | Cordis Corporation | Lumenless pervenous electrical lead and method of implantation |
| SE426023B (en) | 1981-04-23 | 1982-12-06 | Bengt Gustavsson | DEVICE BLA FOR INFANTRY OF CATHEDRES IN BLOOD BLOOD |
| US4411654A (en) | 1981-04-30 | 1983-10-25 | Baxter Travenol Laboratories, Inc. | Peelable catheter with securing ring and suture sleeve |
| US4468224A (en) | 1982-01-28 | 1984-08-28 | Advanced Cardiovascular Systems, Inc. | System and method for catheter placement in blood vessels of a human patient |
| US4516972A (en) | 1982-01-28 | 1985-05-14 | Advanced Cardiovascular Systems, Inc. | Guiding catheter and method of manufacture |
| US4581017B1 (en) | 1983-03-07 | 1994-05-17 | Bard Inc C R | Catheter systems |
| US4554929A (en) | 1983-07-13 | 1985-11-26 | Advanced Cardiovascular Systems, Inc. | Catheter guide wire with short spring tip and method of using the same |
| US4582181A (en) | 1983-08-12 | 1986-04-15 | Advanced Cardiovascular Systems, Inc. | Steerable dilatation catheter |
| US4616652A (en) | 1983-10-19 | 1986-10-14 | Advanced Cardiovascular Systems, Inc. | Dilatation catheter positioning apparatus |
| US4538622A (en) | 1983-11-10 | 1985-09-03 | Advanced Cardiovascular Systems, Inc. | Guide wire for catheters |
| US4705507A (en) | 1984-05-02 | 1987-11-10 | Boyles Paul W | Arterial catheter means |
| US4569347A (en) | 1984-05-30 | 1986-02-11 | Advanced Cardiovascular Systems, Inc. | Catheter introducing device, assembly and method |
| US4573470A (en) | 1984-05-30 | 1986-03-04 | Advanced Cardiovascular Systems, Inc. | Low-profile steerable intraoperative balloon dilitation catheter |
| US4631056A (en) | 1984-07-12 | 1986-12-23 | The Kendall Company | Tamper discouraging system |
| US4619644A (en) | 1984-09-06 | 1986-10-28 | Scott Van E | Clinical catheterization technique and apparatus for performing same |
| EP0176865B1 (en) * | 1984-09-18 | 1990-12-27 | Medtronic Versaflex, Inc. | Steerable soft-tip catheter and method of using same |
| US4596559A (en) | 1984-11-02 | 1986-06-24 | Fleischhacker John J | Break-away handle for a catheter introducer set |
| DE3442736A1 (en) | 1984-11-23 | 1986-06-05 | Tassilo Dr.med. 7800 Freiburg Bonzel | DILATATION CATHETER |
| US4631059A (en) | 1985-03-26 | 1986-12-23 | Datascope Corp. | Sheath remover |
| US4738666A (en) | 1985-06-11 | 1988-04-19 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US4638805A (en) | 1985-07-30 | 1987-01-27 | Advanced Cardiovascular Systems, Inc. | Self-venting balloon dilatation catheter and method |
| JPS62101261A (en) | 1985-10-28 | 1987-05-11 | テルモ株式会社 | Tube for introducing medical device and medical device introducing assembly equipped therewith |
| US4748986A (en) | 1985-11-26 | 1988-06-07 | Advanced Cardiovascular Systems, Inc. | Floppy guide wire with opaque tip |
| US5135482A (en) * | 1985-12-31 | 1992-08-04 | Arnold Neracher | Hydrodynamic device for the elimination of an organic deposit obstructing a vessel of a human body |
| EP0241011B1 (en) * | 1986-04-11 | 1992-01-29 | Siemens Aktiengesellschaft | Device for switching through colour video signals |
| US5061273A (en) | 1989-06-01 | 1991-10-29 | Yock Paul G | Angioplasty apparatus facilitating rapid exchanges |
| US4723948A (en) | 1986-11-12 | 1988-02-09 | Pharmacia Nu Tech | Catheter attachment system |
| US4771777A (en) | 1987-01-06 | 1988-09-20 | Advanced Cardiovascular Systems, Inc. | Perfusion type balloon dilatation catheter, apparatus and method |
| US4748982A (en) * | 1987-01-06 | 1988-06-07 | Advanced Cardiovascular Systems, Inc. | Reinforced balloon dilatation catheter with slitted exchange sleeve and method |
| US4821722A (en) | 1987-01-06 | 1989-04-18 | Advanced Cardiovascular Systems, Inc. | Self-venting balloon dilatation catheter and method |
| ES2043796T3 (en) | 1987-02-27 | 1994-01-01 | Bard Inc C R | CATHETER AND CHUCK EXCHANGE SYSTEM. |
| US4988356A (en) | 1987-02-27 | 1991-01-29 | C. R. Bard, Inc. | Catheter and guidewire exchange system |
| US4883468A (en) | 1987-04-08 | 1989-11-28 | Terumo Kabushiki Kaisha | Medical tool introduction cannula and method of manufacturing the same |
| GB2205751A (en) | 1987-06-04 | 1988-12-21 | Femcare Ltd | Insertion of catheters |
| JPS642662A (en) | 1987-06-25 | 1989-01-06 | Nippon Sherwood Kk | Easy split plastic cannula excellent in stability |
| US4813930A (en) | 1987-10-13 | 1989-03-21 | Dimed, Inc. | Angioplasty guiding catheters and methods for performing angioplasty |
| DE3743578A1 (en) | 1987-12-22 | 1989-07-13 | Andreas Dr Zeiher | BALLOON CATHETER FOR RECANALIZING STENOSES IN BODY CHANNELS, IN PARTICULAR CORONARY VESSELS AND PERIPHERAL ARTERIAL VESSELS |
| US4944745A (en) * | 1988-02-29 | 1990-07-31 | Scimed Life Systems, Inc. | Perfusion balloon catheter |
| US5171222A (en) | 1988-03-10 | 1992-12-15 | Scimed Life Systems, Inc. | Interlocking peel-away dilation catheter |
| US4935017A (en) | 1988-04-29 | 1990-06-19 | C. R. Bard, Inc. | Variable shaped catheter system and method for catheterization |
| US4931049A (en) | 1988-07-05 | 1990-06-05 | Camino Laboratorties, Inc. | Catheter coupling system |
| US4981478A (en) | 1988-09-06 | 1991-01-01 | Advanced Cardiovascular Systems | Composite vascular catheter |
| US4898577A (en) | 1988-09-28 | 1990-02-06 | Advanced Cardiovascular Systems, Inc. | Guiding cathether with controllable distal tip |
| US4932413A (en) * | 1989-03-13 | 1990-06-12 | Schneider (Usa), Inc. | Guidewire exchange catheter |
| US4997424A (en) | 1989-04-05 | 1991-03-05 | Medamicus, Inc. | Catheter introducer and introducer slitter |
| US5046503A (en) | 1989-04-26 | 1991-09-10 | Advanced Cardiovascular Systems, Inc. | Angioplasty autoperfusion catheter flow measurement method and apparatus |
| US5034001A (en) | 1989-09-08 | 1991-07-23 | Advanced Cardiovascular Systems, Inc. | Method of repairing a damaged blood vessel with an expandable cage catheter |
| US5024234A (en) * | 1989-10-17 | 1991-06-18 | Cardiovascular Imaging Systems, Inc. | Ultrasonic imaging catheter with guidewire channel |
| US5102403A (en) | 1990-06-18 | 1992-04-07 | Eckhard Alt | Therapeutic medical instrument for insertion into body |
| EP0578777B1 (en) | 1991-04-05 | 1998-01-21 | Boston Scientific Corporation | Convertible catheter assembly |
| US6821287B1 (en) | 1991-05-24 | 2004-11-23 | Advanced Cardiovascular Systems, Inc. | Multi-mode vascular catheter system |
| US5395335A (en) | 1991-05-24 | 1995-03-07 | Jang; G. David | Universal mode vascular catheter system |
| US5154725A (en) | 1991-06-07 | 1992-10-13 | Advanced Cardiovascular Systems, Inc. | Easily exchangeable catheter system |
| US5205822A (en) | 1991-06-10 | 1993-04-27 | Cordis Corporation | Replaceable dilatation catheter |
| US5135535A (en) | 1991-06-11 | 1992-08-04 | Advanced Cardiovascular Systems, Inc. | Catheter system with catheter and guidewire exchange |
| EP0588966A4 (en) | 1991-06-13 | 1994-10-19 | G David Jang | Universal mode vascular catheter system. |
| US5195978A (en) | 1991-12-11 | 1993-03-23 | Baxter International Inc. | Rapid exchange over-the-wire catheter with breakaway feature |
-
1991
- 1991-06-11 US US07/713,973 patent/US5135535A/en not_active Expired - Lifetime
-
1992
- 1992-05-12 US US07/881,673 patent/US6685721B1/en active Active
- 1992-06-03 DE DE0712639T patent/DE712639T1/en active Pending
- 1992-06-03 EP EP92109403A patent/EP0518205B1/en not_active Expired - Lifetime
- 1992-06-03 DE DE69212717T patent/DE69212717T2/en not_active Expired - Fee Related
- 1992-06-03 DE DE69232848T patent/DE69232848T2/en not_active Expired - Fee Related
- 1992-06-03 EP EP96101511A patent/EP0712639B1/en not_active Expired - Lifetime
- 1992-06-10 CA CA002070914A patent/CA2070914C/en not_active Expired - Fee Related
- 1992-06-10 JP JP4150883A patent/JPH0623055A/en active Pending
-
1995
- 1995-04-21 US US08/426,814 patent/US6273899B1/en not_active Expired - Lifetime
-
2001
- 2001-02-13 US US09/681,182 patent/US6398799B2/en not_active Expired - Fee Related
- 2001-09-07 JP JP2001272232A patent/JP2002126089A/en active Pending
-
2002
- 2002-10-25 US US10/280,318 patent/US6692465B2/en not_active Expired - Fee Related
-
2003
- 2003-12-16 US US10/737,704 patent/US7229460B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6398799B2 (en) | 2002-06-04 |
| EP0518205B1 (en) | 1996-08-14 |
| US20030050661A1 (en) | 2003-03-13 |
| DE712639T1 (en) | 1998-03-26 |
| DE69212717D1 (en) | 1996-09-19 |
| US20040176793A1 (en) | 2004-09-09 |
| JP2002126089A (en) | 2002-05-08 |
| DE69232848T2 (en) | 2003-09-04 |
| EP0712639A3 (en) | 1996-06-05 |
| JPH0623055A (en) | 1994-02-01 |
| EP0712639B1 (en) | 2002-11-13 |
| CA2070914A1 (en) | 1992-12-12 |
| US6273899B1 (en) | 2001-08-14 |
| US20010025186A1 (en) | 2001-09-27 |
| EP0518205A1 (en) | 1992-12-16 |
| US6685721B1 (en) | 2004-02-03 |
| US5135535A (en) | 1992-08-04 |
| DE69232848D1 (en) | 2002-12-19 |
| EP0712639A2 (en) | 1996-05-22 |
| DE69212717T2 (en) | 1997-03-06 |
| US6692465B2 (en) | 2004-02-17 |
| US7229460B2 (en) | 2007-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2070914C (en) | Dilatation catheter and guidewire exchange | |
| US5709658A (en) | Rapid exchange type over-the-wire catheter | |
| US5458613A (en) | Rapid exchange type intraluminal catheter with guiding element | |
| US6254549B1 (en) | Guidewire replacement device with flexible intermediate section | |
| US5334154A (en) | Perfusion type dilatation catheter having perfusion ports with depressed proximal edges | |
| US5984945A (en) | Guidewire replacement method | |
| US5195971A (en) | Perfusion type dilatation catheter | |
| US5154725A (en) | Easily exchangeable catheter system | |
| EP0513818B1 (en) | Low profile dilatation catheter | |
| US6740104B1 (en) | Enhanced catheter with alignment means | |
| CA2116038C (en) | Low profile dilatation catheter | |
| CA2209633C (en) | Catheter shaft with an oblong transverse cross section | |
| WO1997033642A9 (en) | Guidewire replacement device with flexible intermediate section | |
| US20010029362A1 (en) | Catheter shaft with an oblong transverse cross-section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |