US20010021840A1 - Catheter with flexible and rigid reinforcements - Google Patents

Catheter with flexible and rigid reinforcements Download PDF

Info

Publication number
US20010021840A1
US20010021840A1 US09/268,980 US26898099A US2001021840A1 US 20010021840 A1 US20010021840 A1 US 20010021840A1 US 26898099 A US26898099 A US 26898099A US 2001021840 A1 US2001021840 A1 US 2001021840A1
Authority
US
United States
Prior art keywords
catheter
support member
distal portion
specified
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.)
Granted
Application number
US09/268,980
Other versions
US6319244B2 (en
Inventor
Mitta Suresh
Albert Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KDL MEDICAL Inc
Original Assignee
Chase Medical Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chase Medical Inc filed Critical Chase Medical Inc
Priority to US09/268,980 priority Critical patent/US6319244B2/en
Assigned to CHASE MEDICAL INC. reassignment CHASE MEDICAL INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAVIS, ALBERT, SURESH, MITTA
Publication of US20010021840A1 publication Critical patent/US20010021840A1/en
Application granted granted Critical
Publication of US6319244B2 publication Critical patent/US6319244B2/en
Assigned to KDL MEDICAL, INC. reassignment KDL MEDICAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHASE MEDICAL
Assigned to COMERICA BANK reassignment COMERICA BANK SECURITY AGREEMENT Assignors: KDL MEDICAL, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • 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

Definitions

  • the present invention is generally related to medical catheters, and more particularly to catheters subject to high insertion and manipulation forces such as aortic perfusion catheters and the like.
  • the catheter body comprisesd of a softer material so that the catheter body does not create trauma to the body vessels.
  • softer catheter bodies are more difficult to insert and manipulate within the body vessels, because they have reduced body strength.
  • One way to stiffen the softer catheter body is to place the catheter in an ice slush before inserting it into the body vessel. By lowering the temperature of the catheter body, the surgeon is able to temporarily stiffen the catheter body, which is typically made of a material such as polyvinylchloride (PVC), polyurethane, polyethylene and the like.
  • PVC polyvinylchloride
  • Silicone catheter bodies usually need to be structurally reinforced to provide body strength and kink resistance to avoid collapsing during use.
  • One conventional form of reinforcement is to provide a coil integrally formed in the catheter body outerwall. This coil reinforcement gives flexibility to the catheter while at the same time providing kink resistance. Flexibility of the catheter at all times is desired because the surgeon would like to clear the catheter body out from a surgical site once he secures the catheter in the body vessel.
  • a coil may not provide sufficient body strength for inserting and manipulating the catheter within a body vessel.
  • an improved catheter preferably comprised of an atraumatic elastomeric material, such as silicone, which has improved resistance from collapsing and kinking, and also has sufficient body strength to facilitate insertion and maneuvering within a body vessel, such as the aorta.
  • an atraumatic elastomeric material such as silicone
  • the present invention achieves technical advantages as a catheter comprised of an elastomeric material and reinforced with two different reinforcement elements.
  • the distal tip portion of the catheter is reinforced with a rigid tubular member, while the proximal portion of the catheter is reinforced with a more flexible member such as a coil or spring.
  • the rigid tubular member is preferably malleable to allow custom shaping, and to provide body strength during insertion and manipulation.
  • the spring and rigid tubular member preferably extend within a common lumen.
  • the diameter of the coil or spring is about the same as the outer diameter of the tubular member, and the coil or spring is securely disposed about the rigid tubular member within a common lumen of the catheter body.
  • the outer diameter of the spring is about the same as the inner diameter of the rigid tubular member, and the spring securely resides within the tubular member.
  • the support members are slightly spaced from one another.
  • the coil or spring extends within one of the lumens of the catheter body, whereby a thin layer of polymeric material coats the lumen wall to encapsulate the coil or spring reinforcing member and provide a smooth surface in the flow lumen.
  • An elastomeric balloon may be sealingly attached about the catheter body and may be comprised of a material compatible with the catheter body, both preferably being comprised of silicone.
  • a hinge is preferably provided in the catheter body proximal to the rigid tubular member to allow hinging the catheter body distal portion within a body vessel after insertion. The hinge allows the balloon and catheter distal portion to self-align within the center of the body vessel.
  • a method of manipulating a catheter within a body vessel including the steps of inserting the catheter into the vessel and advancing the catheter in the vessel such that the catheter distal portion is positioned along the length of the vessel.
  • the catheter has a lumen extending between a proximal portion and a distal portion, and has a resilient support member extending about the lumen from the catheter proximal portion to a location short of the distal portion.
  • the catheter also has a tubular rigid support member extending about the lumen from proximate the resilient member distal portion to the catheter distal portion.
  • Optional steps include holding the rigid support member of the catheter during advancement, infusing a fluid into the body vessel, aspirating a fluid from the body vessel, and inflating an optional elastomeric balloon to occlude a portion of the body vessel.
  • the distal portion of the catheter remains positioned parallel to the length of the vessel during the steps of advancing and manipulating the catheter to avoid damage to the inner walls of the body vessel.
  • the rigid reinforced section at the distal tip of the catheter body allows the surgeon to hold the catheter tip more firmly during insertion and manipulation within a body vessel. Because the tip is rigid, the catheter tip is more controllable within the body vessel, such as the aorta. Because the catheter section proximal the rigid tip is reinforced by the spring or coil member, this portion of the catheter is flexible and resists kinking. This more flexible section, however, allows the surgeon to move the catheter proximal portion out of the surgical site without kinking.
  • FIG. 1 is a cross-sectional view of the catheter according to a first preferred embodiment of the present invention having two different reinforcement elements connected to one another and extending within a common flow lumen of the catheter body;
  • FIG. 2 is a cross-sectional view of a second embodiment of the invention wherein the two reinforcement elements abut one another;
  • FIG. 3 is a cross-sectional view of a third embodiment of the invention wherein the two reinforcement elements are spaced from one another;
  • FIG. 4 is a cross-sectional view of a fourth embodiment of the invention including a balloon and a second lumen;
  • FIG. 5 is an illustration of the catheter of FIG. 4 in use depicting the hinging and self-alignment of the balloon in the body vessel;
  • FIG. 6 is a cross-sectional view of a fifth embodiment of the invention including a third lumen and aspiration ports;
  • FIG. 7 is a cross-section taken along line 7 - 7 in FIG. 6 illustrating the reinforcing coil and rigid support member extending within a common lumen of an elastomeric catheter body;
  • FIG. 8 is another embodiment of the invention with the coil member connected within the more rigid tubular support member.
  • Catheter 10 is seen to be comprised of an elastomeric catheter body 12 extending from a proximal end portion 14 to a tapered distal end portion 16 . Extending within catheter body 12 is seen to be a first fluid delivery lumen 20 extending from the proximal portion 14 to the distal portion 16 and terminating at a lumen distal port 22 .
  • Catheter body 12 is preferably comprised of an elastomeric material such as silicone, which is a rather soft material having the advantage that it does not readily create trauma to body vessels when inserted therewithin.
  • Catheter body 12 is seen to be reinforced along a proximal section by a flexible coiled support member 30 comprising a coil or spring.
  • Flexible support member 30 has a relatively small diameter and longitudinally extends within the fluid delivery lumen 20 .
  • Flexible support member 30 is sealed within the catheter body 12 with a thin layer polymeric material 32 to encapsulate the flexible support member 30 and provide a smooth flow lumen wall.
  • the distal portion of the catheter body is provided with a malleable tubular rigid support member 36 reinforcing the distal portion 16 of catheter body 12 .
  • the rigid support member 36 allows the catheter distal end to be bent and customly shaped, as shown by the phantom lines.
  • the rigid support member 36 also structurally reinforces the catheter distal portion 16 such that it can be securely grasped by the surgeon during insertion and manipulation within a body vessel.
  • the rigid support member 36 extends within the same fluid delivery lumen 20 as flexible support member 30 , and is securely connected thereto at the distal end of the flexible support member 30 as shown.
  • the flexible support member 30 has an inner diameter that is about the same dimension as the outer diameter of the rigid tubular support member 36 such that the spring is securingly disposed over and about the rigid tubular support member 36 , shown in region 37 .
  • the outer diameter of the flexible support member 30 may be about the same dimension as the inner diameter of the rigid tubular support member 36 such that the flexible support member 30 is securingly positioned within the inside of the tubular support member 36 .
  • FIG. 2 there is shown a second embodiment of the invention identified as catheter 38 .
  • the flexible support member 30 abuts the proximal portion of the rigid support member 36 , and may be securingly attached thereto if desired.
  • the flexible support member 30 is adjacent to the rigid support member 36 to provide a flush transition within the common flow lumen 22 , shown in region 39 .
  • FIG. 3 there is shown a third embodiment of the present invention shown as catheter 40 .
  • Catheter 40 is similar to catheter 10 of FIG. 1 and catheter 38 of FIG. 2, wherein like numerals refer to like elements.
  • the distal end of the flexible support member 30 is closely proximate, but spaced apart from, the proximal end of the rigid tubular support member 36 to define a flexible catheter portion shown as a thinned catheter wall at 42 .
  • Flexible portion 42 forms a hinge in the catheter body 12 , and is located proximal the rigid tubular support member 36 . Hinge 42 allows the distal end 16 of catheter 40 to be hinged with respect to the catheter portion reinforced and supported by the flexible support member 30 as illustrated in FIG. 5, which will be discussed shortly.
  • FIG. 4 there is shown generally at 50 a fourth embodiment of the present invention which is similar to the catheter 10 of FIG. 1, catheter 38 of FIG. 2 and catheter 40 of FIG. 3, wherein like numerals refer to like elements.
  • the hinge portion 42 further includes an annular detent 54 which is defined by an annular recess circumferentially defined about the catheter body 12 proximal of the rigid tubular support member 36 .
  • This annular detent 54 further defines the catheter hinge such that the catheter distal end 16 can be hinged with respect to the proximal end of the catheter, as illustrated in FIG. 4.
  • A. balloon member 56 is sealingly disposed about the distal end 16 of catheter body 12 and forms a balloon cavity 58 therebetween.
  • the balloon member 56 is inflatable and preferably comprises silicone.
  • a balloon inflation lumen 60 is seen to extend from proximal end 14 to distal end 16 of catheter body 12 , which lumen terminates at a balloon inflation port 62 opening into balloon cavity 58 .
  • the balloon member 56 may be inflated to selectively occlude a portion of a body vessel such as an aorta during surgery, for example.
  • the distal end of the coiled flexible support member 30 is seen to be spaced from the proximal end of the rigid tubular support member 36 .
  • the distal end of flexible support member 30 could abut the proximal end of rigid support member 36 as shown in FIG. 2, or be securingly connected to the rigid support member 36 such as discussed with reference to catheter 10 in FIG. 1.
  • Annular detent 54 can be provided in all embodiments to provide a hinge to facilitate hinging the distal end 16 at a predefined point of the catheter body, as shown in FIG. 5.
  • the hinge 42 including detent 54 provides technical advantages by allowing the distal end 16 , including the balloon 56 , to self-align itself within a body vessel after insertion, as shown.
  • the catheter 50 can be inserted through an opening 72 formed in the body vessel wall 70 at an angle, wherein the hinge 42 , which may include the annular recess 54 defining a thinned body wall, allows the distal end 16 to coaxially self-align a central axis along the length of the body vessel 70 , as shown.
  • the lumen output port 22 is coaxially aligned within the center of the body vessel 70 and remains substantially parallel to the length of the body vessel 70 during advancement.
  • the distal end 16 supported by the rigid support member 36 can be firmly gripped by the surgeon. Again, the rigid support member 36 prevents the distal end 16 of the catheter 50 from kinking, and is malleable such that it can be customly curved and formed as desired.
  • catheter 80 is similar to the catheters of FIG. 1, FIG. 2, FIG. 3 and FIG. 4 wherein like numeral refer to like elements.
  • Catheter 80 further includes an aspiration/venting lumen 82 extending within catheter body 12 from the proximal end 14 toward the distal end 16 of the catheter body 12 , and terminates at an aspiration port 84 .
  • the flexible coiled support member 30 is seen in this embodiment to be securingly attached to and disposed about the proximal end of the rigid support member 36 in region 37 , similar to catheter 10 in FIG. 1.
  • the flexible support member 30 could also abut or be spaced from the proximal end of the rigid support member 36 as discussed with reference to the previous embodiments.
  • the malleable rigid support member 36 allows the distal end of the catheter to be custom-shaped and curved as desired by the physician, depending on the intended use.
  • the distal portion of the catheter 80 is seen to be curved at approximately 90 degrees.
  • the catheter 80 shown in FIG. 6, for instance, is suitable for insertion into the aorta and other body vessels.
  • the balloon 56 can be defined between a formed curved section 86 and the catheter distal end 16 to facilitate use within the aorta.
  • the present invention finds one ideal use to provide aortic perfusion, whereby the distal tip 16 of the catheter is inserted into the aorta to perfuse the aorta with oxygenated blood.
  • the catheters of the present invention are ideally suited for other surgical procedures as well, including aspiration, for example, draining blood from the vena cava. Limitation to the intended use of the embodiments of the present invention is not to be inferred.
  • FIG. 7 there is shown a cross-sectional view taken along lines 7 - 7 in FIG. 6, illustrating the flexible support member 30 being securely disposed about the proximal end of the rigid support member 36 .
  • the flexible coiled support member 30 and the rigid tubular support member 36 are both coaxial and positioned within the common fluid delivery lumen 20 .
  • FIG. 8 there is shown at 90 a catheter according to another embodiment of the present invention, which is similar to the catheter 80 of FIG. 6, wherein like numerals refer to like elements.
  • the distal end of the flexible coiled support member 30 is seen to be securely disposed within the proximal end of the rigid tubular support member 36 in region 37 .
  • the flexible support member 30 could also be positioned to abut the proximal end of the rigid tubular support member 36 , and also could spaced therefrom if desired, such as shown in FIG. 3 and FIG. 4.
  • the catheter 90 could also be provided with a hinge 42 , which may include a detent 54 , such as shown in FIG. 4, if desired.
  • Other ways of forming a hinge 42 are intended to be covered by the present invention and a thinned catheter wall defined by annular detent 54 depicts the preferred embodiment of the present invention.
  • the present invention derives technical advantages as a catheter having an elastomeric catheter body reinforced with two different reinforcement elements, a flexible reinforcement member at the proximal end and a more rigid tubular member at the distal end thereof.
  • the rigid reinforced portion at the catheter distal tip namely, that portion reinforced by the rigid tubular member 36 , allows the surgeon to hold the tip of the catheter firmly. Since this tip is rigid, the insertion and manipulation of the catheter tip 16 in a body vessel is more controllable.
  • the proximal end 14 of the catheter 10 supported by flexible support member 30 is flexible yet resists kinking.
  • This proximal portion of the catheter supported by flexible support member 30 is sufficiently flexible to facilitate the surgeon to selectively move the proximal end away from the surgical site without kinking.
  • the present invention maintains flexibility at the proximal end with kink resistance, while provides a rigid distal tip for manipulation in the body vessel during surgery.
  • Both the flexible support member 30 and the rigid support member 36 are preferably comprised of stainless steel, although limitation to these materials is not to be inferred. It can be seen that the tapered distal end of the rigid tubular support member 36 lies substantially in the same plane as the tapered catheter body distal end, and thus provides a smooth distal end and ease of manipulation with the vessel member.

Abstract

A catheter (10, 38, 40, 50, 80, 90) having both a flexible (30) and a rigid reinforcement section (36). The catheter body (12) is comprised of an elastomeric material, such as silicone, having a resilient coil or spring member (30) within a fluid delivery lumen (20) along the proximal portion (14) thereof. The catheter is provided with a more rigid malleable reinforcement member (36) at the distal portion (16) thereof, also extending within the fluid delivery lumen (20) and positioned proximal the coil member (30) within the fluid delivery lumen (20). The rigid reinforced distal portion (16) of the catheter body helps the surgeon to hold the tip of the catheter more firmly, and makes insertion of the catheter tip into the body vessel easier. The more flexible support portion (30) at the proximal portion (14) of the elastomeric catheter body reinforces the catheter to prevent kinking, yet allows flexibility to facilitate the surgeon to move the proximal portion (14) of the catheter out of the surgical site. The catheter body may be provided with a balloon (56) and a hinge portion (42), such as defined by an annular detent (54), to allow the catheter tip to self-align within the body vessel when the balloon is inflated. Both the flexible (30) and rigid (36) reinforcement sections are tubular to facilitate fluid delivery therethrough within through the lumen (20) through which the reinforcement members (30 and 36) reside.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • The following U.S. patent application is commonly assigned and is incorporated herein by reference: [0001]
    Pat. No. Ser. No. Title Filed
    TBD TBD Catheter Having Varying Herewith
    Resiliency Balloon
    • FIELD OF THE INVENTION
  • The present invention is generally related to medical catheters, and more particularly to catheters subject to high insertion and manipulation forces such as aortic perfusion catheters and the like. [0002]
    • BACKGROUND OF THE INVENTION
  • One of the challenges surgeons face during surgery while connecting catheters to body vessels, such as arteries, is the difficulty of inserting and manipulating the catheters within the body vessels. It is preferred to have the catheter body comprised of a softer material so that the catheter body does not create trauma to the body vessels. However, softer catheter bodies are more difficult to insert and manipulate within the body vessels, because they have reduced body strength. One way to stiffen the softer catheter body is to place the catheter in an ice slush before inserting it into the body vessel. By lowering the temperature of the catheter body, the surgeon is able to temporarily stiffen the catheter body, which is typically made of a material such as polyvinylchloride (PVC), polyurethane, polyethylene and the like. [0003]
  • The problems presented by soft catheter bodies during insertion and manipulation are more apparent when the catheter bodies are made of elastomeric materials. Elastomeric materials, such as silicone, are quite desirable for inflatable balloons and catheter bodies since they are atraumatic, but suffer in that these materials cannot be bonded to other conventional non-similar materials such as PVC, polyurethane and polyethylene. [0004]
  • Silicone catheter bodies usually need to be structurally reinforced to provide body strength and kink resistance to avoid collapsing during use. One conventional form of reinforcement is to provide a coil integrally formed in the catheter body outerwall. This coil reinforcement gives flexibility to the catheter while at the same time providing kink resistance. Flexibility of the catheter at all times is desired because the surgeon would like to clear the catheter body out from a surgical site once he secures the catheter in the body vessel. However, a coil may not provide sufficient body strength for inserting and manipulating the catheter within a body vessel. [0005]
  • There is desired an improved catheter preferably comprised of an atraumatic elastomeric material, such as silicone, which has improved resistance from collapsing and kinking, and also has sufficient body strength to facilitate insertion and maneuvering within a body vessel, such as the aorta. [0006]
    • SUMMARY OF THE INVENTION
  • The present invention achieves technical advantages as a catheter comprised of an elastomeric material and reinforced with two different reinforcement elements. The distal tip portion of the catheter is reinforced with a rigid tubular member, while the proximal portion of the catheter is reinforced with a more flexible member such as a coil or spring. The rigid tubular member is preferably malleable to allow custom shaping, and to provide body strength during insertion and manipulation. The spring and rigid tubular member preferably extend within a common lumen. [0007]
  • In one embodiment, the diameter of the coil or spring is about the same as the outer diameter of the tubular member, and the coil or spring is securely disposed about the rigid tubular member within a common lumen of the catheter body. In another embodiment, the outer diameter of the spring is about the same as the inner diameter of the rigid tubular member, and the spring securely resides within the tubular member. In yet another embodiment, the support members are slightly spaced from one another. In all embodiments, the coil or spring extends within one of the lumens of the catheter body, whereby a thin layer of polymeric material coats the lumen wall to encapsulate the coil or spring reinforcing member and provide a smooth surface in the flow lumen. [0008]
  • An elastomeric balloon may be sealingly attached about the catheter body and may be comprised of a material compatible with the catheter body, both preferably being comprised of silicone. A hinge is preferably provided in the catheter body proximal to the rigid tubular member to allow hinging the catheter body distal portion within a body vessel after insertion. The hinge allows the balloon and catheter distal portion to self-align within the center of the body vessel. [0009]
  • Also disclosed is a method of manipulating a catheter within a body vessel including the steps of inserting the catheter into the vessel and advancing the catheter in the vessel such that the catheter distal portion is positioned along the length of the vessel. The catheter has a lumen extending between a proximal portion and a distal portion, and has a resilient support member extending about the lumen from the catheter proximal portion to a location short of the distal portion. The catheter also has a tubular rigid support member extending about the lumen from proximate the resilient member distal portion to the catheter distal portion. Optional steps include holding the rigid support member of the catheter during advancement, infusing a fluid into the body vessel, aspirating a fluid from the body vessel, and inflating an optional elastomeric balloon to occlude a portion of the body vessel. Preferably, the distal portion of the catheter remains positioned parallel to the length of the vessel during the steps of advancing and manipulating the catheter to avoid damage to the inner walls of the body vessel. [0010]
  • The rigid reinforced section at the distal tip of the catheter body allows the surgeon to hold the catheter tip more firmly during insertion and manipulation within a body vessel. Because the tip is rigid, the catheter tip is more controllable within the body vessel, such as the aorta. Because the catheter section proximal the rigid tip is reinforced by the spring or coil member, this portion of the catheter is flexible and resists kinking. This more flexible section, however, allows the surgeon to move the catheter proximal portion out of the surgical site without kinking. [0011]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a cross-sectional view of the catheter according to a first preferred embodiment of the present invention having two different reinforcement elements connected to one another and extending within a common flow lumen of the catheter body; [0012]
  • FIG. 2 is a cross-sectional view of a second embodiment of the invention wherein the two reinforcement elements abut one another; [0013]
  • FIG. 3 is a cross-sectional view of a third embodiment of the invention wherein the two reinforcement elements are spaced from one another; [0014]
  • FIG. 4 is a cross-sectional view of a fourth embodiment of the invention including a balloon and a second lumen; [0015]
  • FIG. 5 is an illustration of the catheter of FIG. 4 in use depicting the hinging and self-alignment of the balloon in the body vessel; [0016]
  • FIG. 6 is a cross-sectional view of a fifth embodiment of the invention including a third lumen and aspiration ports; [0017]
  • FIG. 7 is a cross-section taken along line [0018] 7-7 in FIG. 6 illustrating the reinforcing coil and rigid support member extending within a common lumen of an elastomeric catheter body; and
  • FIG. 8 is another embodiment of the invention with the coil member connected within the more rigid tubular support member. [0019]
    • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring to FIG. 1, there is generally shown at [0020] 10 an improved catheter according to a first preferred embodiment of the present invention. Catheter 10 is seen to be comprised of an elastomeric catheter body 12 extending from a proximal end portion 14 to a tapered distal end portion 16. Extending within catheter body 12 is seen to be a first fluid delivery lumen 20 extending from the proximal portion 14 to the distal portion 16 and terminating at a lumen distal port 22. Catheter body 12 is preferably comprised of an elastomeric material such as silicone, which is a rather soft material having the advantage that it does not readily create trauma to body vessels when inserted therewithin.
  • [0021] Catheter body 12 is seen to be reinforced along a proximal section by a flexible coiled support member 30 comprising a coil or spring. Flexible support member 30 has a relatively small diameter and longitudinally extends within the fluid delivery lumen 20. Flexible support member 30 is sealed within the catheter body 12 with a thin layer polymeric material 32 to encapsulate the flexible support member 30 and provide a smooth flow lumen wall. According to the present invention, the distal portion of the catheter body is provided with a malleable tubular rigid support member 36 reinforcing the distal portion 16 of catheter body 12. The rigid support member 36 allows the catheter distal end to be bent and customly shaped, as shown by the phantom lines. The rigid support member 36 also structurally reinforces the catheter distal portion 16 such that it can be securely grasped by the surgeon during insertion and manipulation within a body vessel. The rigid support member 36 extends within the same fluid delivery lumen 20 as flexible support member 30, and is securely connected thereto at the distal end of the flexible support member 30 as shown.
  • As shown in the embodiment of FIG. 1, the [0022] flexible support member 30 has an inner diameter that is about the same dimension as the outer diameter of the rigid tubular support member 36 such that the spring is securingly disposed over and about the rigid tubular support member 36, shown in region 37. However, in an alternative embodiment of the invention, such as shown in FIG. 8 which will be discussed shortly, the outer diameter of the flexible support member 30 may be about the same dimension as the inner diameter of the rigid tubular support member 36 such that the flexible support member 30 is securingly positioned within the inside of the tubular support member 36.
  • Referring now to FIG. 2, there is shown a second embodiment of the invention identified as [0023] catheter 38. The flexible support member 30 abuts the proximal portion of the rigid support member 36, and may be securingly attached thereto if desired. According to this embodiment of the present invention, the flexible support member 30 is adjacent to the rigid support member 36 to provide a flush transition within the common flow lumen 22, shown in region 39.
  • Referring now to FIG. 3, there is shown a third embodiment of the present invention shown as [0024] catheter 40. Catheter 40 is similar to catheter 10 of FIG. 1 and catheter 38 of FIG. 2, wherein like numerals refer to like elements. In this embodiment, the distal end of the flexible support member 30 is closely proximate, but spaced apart from, the proximal end of the rigid tubular support member 36 to define a flexible catheter portion shown as a thinned catheter wall at 42. Flexible portion 42 forms a hinge in the catheter body 12, and is located proximal the rigid tubular support member 36. Hinge 42 allows the distal end 16 of catheter 40 to be hinged with respect to the catheter portion reinforced and supported by the flexible support member 30 as illustrated in FIG. 5, which will be discussed shortly.
  • Referring now to FIG. 4, there is shown generally at [0025] 50 a fourth embodiment of the present invention which is similar to the catheter 10 of FIG. 1, catheter 38 of FIG. 2 and catheter 40 of FIG. 3, wherein like numerals refer to like elements. As shown in FIG. 4, the hinge portion 42 further includes an annular detent 54 which is defined by an annular recess circumferentially defined about the catheter body 12 proximal of the rigid tubular support member 36. This annular detent 54 further defines the catheter hinge such that the catheter distal end 16 can be hinged with respect to the proximal end of the catheter, as illustrated in FIG. 4. A. balloon member 56 is sealingly disposed about the distal end 16 of catheter body 12 and forms a balloon cavity 58 therebetween. The balloon member 56 is inflatable and preferably comprises silicone. A balloon inflation lumen 60 is seen to extend from proximal end 14 to distal end 16 of catheter body 12, which lumen terminates at a balloon inflation port 62 opening into balloon cavity 58. The balloon member 56 may be inflated to selectively occlude a portion of a body vessel such as an aorta during surgery, for example.
  • In the embodiment shown in FIG. 4, the distal end of the coiled [0026] flexible support member 30 is seen to be spaced from the proximal end of the rigid tubular support member 36. However, the distal end of flexible support member 30 could abut the proximal end of rigid support member 36 as shown in FIG. 2, or be securingly connected to the rigid support member 36 such as discussed with reference to catheter 10 in FIG. 1. Annular detent 54 can be provided in all embodiments to provide a hinge to facilitate hinging the distal end 16 at a predefined point of the catheter body, as shown in FIG. 5.
  • Referring to FIG. 5, the [0027] hinge 42 including detent 54 provides technical advantages by allowing the distal end 16, including the balloon 56, to self-align itself within a body vessel after insertion, as shown. The catheter 50 can be inserted through an opening 72 formed in the body vessel wall 70 at an angle, wherein the hinge 42, which may include the annular recess 54 defining a thinned body wall, allows the distal end 16 to coaxially self-align a central axis along the length of the body vessel 70, as shown. Thus, the lumen output port 22 is coaxially aligned within the center of the body vessel 70 and remains substantially parallel to the length of the body vessel 70 during advancement. During insertion and manipulation of the catheter into the body vessel, the distal end 16 supported by the rigid support member 36 can be firmly gripped by the surgeon. Again, the rigid support member 36 prevents the distal end 16 of the catheter 50 from kinking, and is malleable such that it can be customly curved and formed as desired.
  • Referring now to FIG. 6, there is shown a fifth embodiment of the present invention shown as [0028] catheter 80. Catheter 80 is similar to the catheters of FIG. 1, FIG. 2, FIG. 3 and FIG. 4 wherein like numeral refer to like elements. Catheter 80 further includes an aspiration/venting lumen 82 extending within catheter body 12 from the proximal end 14 toward the distal end 16 of the catheter body 12, and terminates at an aspiration port 84. The flexible coiled support member 30 is seen in this embodiment to be securingly attached to and disposed about the proximal end of the rigid support member 36 in region 37, similar to catheter 10 in FIG. 1. Again, the flexible support member 30 could also abut or be spaced from the proximal end of the rigid support member 36 as discussed with reference to the previous embodiments. As shown in FIG. 6, the malleable rigid support member 36 allows the distal end of the catheter to be custom-shaped and curved as desired by the physician, depending on the intended use. For instance, as shown in FIG. 6, the distal portion of the catheter 80 is seen to be curved at approximately 90 degrees. The catheter 80 shown in FIG. 6, for instance, is suitable for insertion into the aorta and other body vessels. The balloon 56 can be defined between a formed curved section 86 and the catheter distal end 16 to facilitate use within the aorta. The present invention finds one ideal use to provide aortic perfusion, whereby the distal tip 16 of the catheter is inserted into the aorta to perfuse the aorta with oxygenated blood. However, the catheters of the present invention are ideally suited for other surgical procedures as well, including aspiration, for example, draining blood from the vena cava. Limitation to the intended use of the embodiments of the present invention is not to be inferred.
  • Referring to FIG. 7, there is shown a cross-sectional view taken along lines [0029] 7-7 in FIG. 6, illustrating the flexible support member 30 being securely disposed about the proximal end of the rigid support member 36. As illustrated, the flexible coiled support member 30 and the rigid tubular support member 36 are both coaxial and positioned within the common fluid delivery lumen 20.
  • Referring now to FIG. 8, there is shown at [0030] 90 a catheter according to another embodiment of the present invention, which is similar to the catheter 80 of FIG. 6, wherein like numerals refer to like elements. In this embodiment, the distal end of the flexible coiled support member 30 is seen to be securely disposed within the proximal end of the rigid tubular support member 36 in region 37. However, as previously mentioned, the flexible support member 30 could also be positioned to abut the proximal end of the rigid tubular support member 36, and also could spaced therefrom if desired, such as shown in FIG. 3 and FIG. 4. Moreover, the catheter 90 could also be provided with a hinge 42, which may include a detent 54, such as shown in FIG. 4, if desired. Other ways of forming a hinge 42 are intended to be covered by the present invention and a thinned catheter wall defined by annular detent 54 depicts the preferred embodiment of the present invention.
  • The present invention derives technical advantages as a catheter having an elastomeric catheter body reinforced with two different reinforcement elements, a flexible reinforcement member at the proximal end and a more rigid tubular member at the distal end thereof. The rigid reinforced portion at the catheter distal tip namely, that portion reinforced by the [0031] rigid tubular member 36, allows the surgeon to hold the tip of the catheter firmly. Since this tip is rigid, the insertion and manipulation of the catheter tip 16 in a body vessel is more controllable. The proximal end 14 of the catheter 10 supported by flexible support member 30, however, is flexible yet resists kinking. This proximal portion of the catheter supported by flexible support member 30 is sufficiently flexible to facilitate the surgeon to selectively move the proximal end away from the surgical site without kinking. Thus, the present invention maintains flexibility at the proximal end with kink resistance, while provides a rigid distal tip for manipulation in the body vessel during surgery.
  • Both the [0032] flexible support member 30 and the rigid support member 36 are preferably comprised of stainless steel, although limitation to these materials is not to be inferred. It can be seen that the tapered distal end of the rigid tubular support member 36 lies substantially in the same plane as the tapered catheter body distal end, and thus provides a smooth distal end and ease of manipulation with the vessel member.
  • Though the invention has been described with respect to a specific preferred embodiment, many variations and modifications will become apparent to those skilled in the art upon reading the present application. It is therefore the intention that the appended claims be interpreted as broadly as possible in view of the prior art to include all such variations and modifications. [0033]

Claims (35)

We claim:
1. A catheter, comprising:
a catheter body having a first lumen extending between a proximal portion and a distal portion;
a resilient support member extending about said first lumen from said catheter proximal portion to a location short or said distal portion; and
a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said lumen distal portion.
2. The catheter as specified in
claim 1
 wherein said catheter body further comprises hinge means disposed proximal said rigid support member for hinging said catheter body distal portion.
3. The catheter as specified in
claim 2
 wherein said hinge means comprises a detent.
4. The catheter as specified in
claim 2
 further comprising an inflatable elastomeric balloon disposed about said catheter distal portion and means to inflate said balloon.
5. The catheter as specified in
claim 1
 wherein said rigid support member is malleable.
6. The catheter as specified in
claim 5
 wherein said rigid support member and said catheter body distal portion is curved along a curved portion.
7. The catheter as specified in
claim 6
 further comprising an inflatable balloon disposed between said curved portion and said catheter distal portion, and means for inflating said balloon.
8. The catheter as specified in
claim 1
 further comprising a thin film disposed about said resilient support member sealing said resilient support member within said first lumen.
9. The catheter as specified in
claim 1
 wherein said resilient member is secured to said rigid support member.
10. The catheter as specified in
claim 1
 wherein said resilient support member comprises a coil.
11. The catheter as specified in
claim 10
 wherein said coil is disposed about and secured to said tubular support member.
12. The catheter as specified in
claim 10
 wherein said coil is disposed within and secured to said tubular support member.
13. The catheter as specified in
claim 10
 wherein said catheter body comprises an elastomeric material.
14. The catheter as specified in
claim 13
 wherein said elastomeric material comprises silicone.
15. The catheter as specified in
claim 3
 wherein said balloon comprises silicone.
16. The catheter as specified in
claim 1
 further comprising a second lumen extending within said catheter body to said catheter body distal portion.
17. The catheter as specified in
claim 16
 wherein said catheter body comprises silicone.
18. The catheter as specified in
claim 2
 wherein said rigid support member is disposed proximate, but spaced from, said resilient support member to define a first catheter section comprising said hinge means.
19. The catheter as specified in
claim 18
 wherein said first catheter section further comprises a detent.
20. The catheter as specified in
claim 18
 wherein said first catheter section has a thinned wall thickness.
21. A method of manipulating a catheter within a body vessel extending lengthwise, comprising the steps of:
a) inserting said catheter having a first lumen extending between a proximal portion and a distal portion into the vessel, said catheter having a resilient support member extending about said first lumen from said catheter proximal portion to a location short of said catheter distal portion, said catheter having a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said catheter distal portion; and
b) advancing said catheter into the vessel such that said catheter distal portion is positioned along said length of the vessel.
22. The method of
claim 21
 wherein said distal portion of said catheter remains positioned substantially parallel to the length of the vessel during said advancing step.
23. The method of
claim 21
 further comprising the step of axially manipulating said catheter within the vessel, wherein said distal portion of said catheter remains positioned parallel to the length of the vessel.
24. The method of
claim 21
 further comprising the step of holding said catheter distal portion supported by said rigid support member of said catheter while advancing said catheter within the vessel.
25. The method of
claim 21
 further comprising the step of infusing a fluid into the body vessel via said lumen.
26. The method of
claim 21
 further comprising the step of aspirating a fluid from the body vessel via said lumen.
27. The method of
claim 21
 wherein said catheter further comprises a hinge means disposed proximal said rigid support member for hinging said catheter body distal portion.
28. The method of
claim 21
 wherein said catheter further comprises an inflatable elastomeric balloon disposed about said catheter distal portion and means to inflate said balloon, further comprising the steps of inflating said elastomeric balloon to occlude a portion of the body vessel.
29. The method of
claim 21
 wherein the body vessel comprises an aorta, further comprising the step of advancing said catheter upwardly into the aorta.
30. The method of
claim 21
 wherein said resilient support member is sealingly imbedded within said catheter.
31. The method of
claim 30
 wherein said resilient support member is sealed within said catheter with a thin layer of polymeric material.
32. The method of
claim 21
 wherein said rigid support member and said catheter body distal portion are curved along a curved portion.
33. The method of
claim 21
 wherein a distal portion of said resilient support member resides securely within said rigid support member.
34. The method of
claim 21
 wherein said resilient support member is spaced apart from said rigid support member.
35. The method of
claim 21
 wherein said resilient support member abuts said rigid support member.
US09/268,980 1999-03-16 1999-03-16 Catheter with flexible and rigid reinforcements Expired - Fee Related US6319244B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/268,980 US6319244B2 (en) 1999-03-16 1999-03-16 Catheter with flexible and rigid reinforcements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/268,980 US6319244B2 (en) 1999-03-16 1999-03-16 Catheter with flexible and rigid reinforcements

Publications (2)

Publication Number Publication Date
US20010021840A1 true US20010021840A1 (en) 2001-09-13
US6319244B2 US6319244B2 (en) 2001-11-20

Family

ID=23025343

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/268,980 Expired - Fee Related US6319244B2 (en) 1999-03-16 1999-03-16 Catheter with flexible and rigid reinforcements

Country Status (1)

Country Link
US (1) US6319244B2 (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030199852A1 (en) * 2002-04-23 2003-10-23 Endobionics, Inc. Attachment joints with polymer encapsulation
US20040133156A1 (en) * 2003-01-06 2004-07-08 Diaz Joseph Robert Balloon catheter with improved resistance to non-deflation
US20050251091A1 (en) * 2004-05-10 2005-11-10 Usgi Medical Inc. Apparatus and methods for transgastric tissue manipulation
US20060224225A1 (en) * 2003-06-04 2006-10-05 Terrance Ransbury Implantable intravascular device for defibrillation and/or pacing
WO2006127929A2 (en) * 2005-05-23 2006-11-30 Abbott Laboratories Catheter having plurality of stiffening members
US20070005003A1 (en) * 2003-12-31 2007-01-04 Patterson Ryan C Reinforced multi-lumen catheter
US20070016132A1 (en) * 2004-05-27 2007-01-18 Oepen Randolf V Catheter having plurality of stiffening members
US20070016149A1 (en) * 2004-01-16 2007-01-18 Marcel Hunn Injection Needle
US20070179471A1 (en) * 2004-01-23 2007-08-02 Iscience Surgical Corporation Composite ophthalmic microcannula
US20070219466A1 (en) * 2006-01-06 2007-09-20 Tremulis W S Atraumatic Catheter Tip
US20080065051A1 (en) * 2003-12-12 2008-03-13 Williams Michael S Implantable medical device having pre-implant exoskeleton
US20080172037A1 (en) * 2006-11-01 2008-07-17 Percutaneous Systems, Inc. Catheter with adjustable column stability and methods for its use
EP2042212A1 (en) * 2007-09-28 2009-04-01 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US20090088730A1 (en) * 2007-09-28 2009-04-02 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US20090209916A1 (en) * 2008-01-28 2009-08-20 Baxter International Inc. Sealant applicator with malleable section
US20090247987A1 (en) * 2007-11-29 2009-10-01 Chevalier Jr Raymond Drainage Catheter
US7658723B2 (en) 2004-05-27 2010-02-09 Abbott Laboratories Catheter having plurality of stiffening members
US7785318B2 (en) 2004-05-27 2010-08-31 Abbott Laboratories Catheter having plurality of stiffening members
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
US7794448B2 (en) 2004-05-27 2010-09-14 Abbott Laboratories Multiple lumen catheter and method of making same
US7840282B2 (en) 2003-06-04 2010-11-23 Synecor Llc Method and apparatus for retaining medical implants within body vessels
US7899554B2 (en) 2003-06-04 2011-03-01 Synecor Llc Intravascular System and Method
US20110196233A1 (en) * 2010-02-09 2011-08-11 Joaquin Martinez-Arraras Bidirectional introducer catheter
US8239045B2 (en) 2003-06-04 2012-08-07 Synecor Llc Device and method for retaining a medical device within a vessel
US8323432B2 (en) 2002-12-31 2012-12-04 Abbott Laboratories Vascular Enterprises Limited Catheter and method of manufacturing same
CN102921090A (en) * 2012-02-27 2013-02-13 上海交通大学医学院附属第三人民医院 Development catheter applied to treatment of chronic total occlusion
JP2014208297A (en) * 2009-06-08 2014-11-06 トライレム メディカル， インコーポレイテッド Side branch balloon
US20170027476A1 (en) * 2013-01-23 2017-02-02 Mediguide Ltd. Distributed location sensor

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6830577B2 (en) * 1996-07-26 2004-12-14 Kensey Nash Corporation System and method of use for treating occluded vessels and diseased tissue
US5779721A (en) 1996-07-26 1998-07-14 Kensey Nash Corporation System and method of use for revascularizing stenotic bypass grafts and other blood vessels
US6905505B2 (en) * 1996-07-26 2005-06-14 Kensey Nash Corporation System and method of use for agent delivery and revascularizing of grafts and vessels
US6080170A (en) * 1996-07-26 2000-06-27 Kensey Nash Corporation System and method of use for revascularizing stenotic bypass grafts and other occluded blood vessels
US6652546B1 (en) * 1996-07-26 2003-11-25 Kensey Nash Corporation System and method of use for revascularizing stenotic bypass grafts and other occluded blood vessels
JPH11342208A (en) * 1998-06-02 1999-12-14 Buaayu:Kk Balloon catheter
US20040162519A1 (en) * 1999-04-27 2004-08-19 Helkowski Richard A. Aortic occlusion balloon cannula
US6689151B2 (en) * 2001-01-25 2004-02-10 Scimed Life Systems, Inc. Variable wall thickness for delivery sheath housing
US20020123713A1 (en) * 2001-03-01 2002-09-05 Watson David A. Ingrowth preventing indwelling catheter assembly
US7258694B1 (en) 2002-06-17 2007-08-21 Origin Medsystems, Inc. Medical punch and surgical procedure
US6976979B2 (en) 2002-10-31 2005-12-20 Medtronic, Inc. Malleable cannula
US7378048B2 (en) * 2002-12-03 2008-05-27 Boston Scientific Scimed, Inc. Method for forming catheter curves
US20040143286A1 (en) 2003-01-17 2004-07-22 Johnson Eric G. Catheter with disruptable guidewire channel
EP1638633B1 (en) * 2003-07-02 2009-11-18 Cook Critical Care Incorporated Central venous catheter
DE102004003166B4 (en) * 2004-01-21 2011-09-15 Siemens Ag catheter
US7232462B2 (en) * 2004-03-31 2007-06-19 Cook Incorporated Self centering delivery catheter
US7628769B2 (en) * 2004-05-27 2009-12-08 Abbott Laboratories Catheter having overlapping stiffening members
JP5102023B2 (en) 2004-06-29 2012-12-19 シー アール バード インコーポレイテッド Method and system for fluid communication with a gastrostomy tube
JP4988725B2 (en) * 2005-06-06 2012-08-01 シー・アール・バード・インコーポレーテッド Supply device including balloon tip and manufacturing method
DE102005029270B4 (en) * 2005-06-23 2009-07-30 Siemens Ag Catheter, catheter device and diagnostic imaging device
US9162037B2 (en) 2005-07-06 2015-10-20 Vascular Pathways, Inc. Intravenous catheter insertion device and method of use
US7803130B2 (en) 2006-01-09 2010-09-28 Vance Products Inc. Deflectable tip access sheath
WO2007124167A2 (en) * 2006-04-21 2007-11-01 C. R. Bard, Inc. Feeding device and bolster apparatus and method for making the same
ATE489989T1 (en) 2007-05-07 2010-12-15 Vascular Pathways Inc INTRODUCTION OF AN INTRAVENOUS CATHETER AND BLOOD COLLECTION DEVICE AND METHOD OF USE
JP2010075352A (en) * 2008-09-25 2010-04-08 Fujinon Corp Flexible tube for endoscope and endoscope
EP2429427B1 (en) 2009-05-14 2017-10-11 Cook Medical Technologies LLC Access sheath with active deflection
EP2451512A1 (en) 2009-07-07 2012-05-16 C.R. Bard Inc. Extensible internal bolster for a medical device
WO2011100310A2 (en) * 2010-02-09 2011-08-18 C.R. Bard, Inc. Deflation indicator for a medical device bolster
US8932258B2 (en) 2010-05-14 2015-01-13 C. R. Bard, Inc. Catheter placement device and method
US9950139B2 (en) 2010-05-14 2018-04-24 C. R. Bard, Inc. Catheter placement device including guidewire and catheter control elements
US11925779B2 (en) 2010-05-14 2024-03-12 C. R. Bard, Inc. Catheter insertion device including top-mounted advancement components
US10384039B2 (en) 2010-05-14 2019-08-20 C. R. Bard, Inc. Catheter insertion device including top-mounted advancement components
US9872971B2 (en) 2010-05-14 2018-01-23 C. R. Bard, Inc. Guidewire extension system for a catheter placement device
US9345853B2 (en) 2010-12-10 2016-05-24 Teknor Apex Company Tube assembly and method for making the assembly
US8690833B2 (en) 2011-01-31 2014-04-08 Vascular Pathways, Inc. Intravenous catheter and insertion device with reduced blood spatter
EP3563898B1 (en) 2011-02-25 2020-11-11 C.R. Bard, Inc. Medical component insertion device including a retractable needle
USD903101S1 (en) 2011-05-13 2020-11-24 C. R. Bard, Inc. Catheter
US9332999B2 (en) 2012-08-13 2016-05-10 Covidien Lp Apparatus and methods for clot disruption and evacuation
US9332998B2 (en) 2012-08-13 2016-05-10 Covidien Lp Apparatus and methods for clot disruption and evacuation
WO2014120741A1 (en) 2013-01-30 2014-08-07 Vascular Pathways, Inc. Systems and methods for venipuncture and catheter placement
US10232146B2 (en) 2014-09-05 2019-03-19 C. R. Bard, Inc. Catheter insertion device including retractable needle
USD903100S1 (en) 2015-05-01 2020-11-24 C. R. Bard, Inc. Catheter placement device
US11040176B2 (en) 2015-05-15 2021-06-22 C. R. Bard, Inc. Catheter placement device including an extensible needle safety component
US11219740B2 (en) 2015-05-29 2022-01-11 Covidien Lp Catheter including tapering coil member
US10398874B2 (en) 2015-05-29 2019-09-03 Covidien Lp Catheter distal tip configuration
US10357631B2 (en) 2015-05-29 2019-07-23 Covidien Lp Catheter with tapering outer diameter
US10582914B2 (en) 2016-01-15 2020-03-10 Covidien Lp Navigable endobronchial tool to access tissue outside a bronchus
US10493262B2 (en) 2016-09-12 2019-12-03 C. R. Bard, Inc. Blood control for a catheter insertion device
AU2017373953B2 (en) 2016-12-08 2023-05-11 Abiomed, Inc. Overmold technique for peel-away introducer design
US11400260B2 (en) 2017-03-01 2022-08-02 C. R. Bard, Inc. Catheter insertion device
US10926060B2 (en) 2017-03-02 2021-02-23 Covidien Lp Flexible tip catheter
US10537710B2 (en) 2017-04-20 2020-01-21 Covidien Lp Catheter including an inner liner with a flexible distal section
CN115671504A (en) 2018-03-07 2023-02-03 巴德阿克塞斯系统股份有限公司 Guidewire advancement and blood flashback system for medical device insertion systems
CA3100259A1 (en) 2018-05-16 2019-11-21 Abiomed, Inc. Peel-away sheath assembly
USD921884S1 (en) 2018-07-27 2021-06-08 Bard Access Systems, Inc. Catheter insertion device
CN112386778A (en) 2019-08-19 2021-02-23 贝克顿·迪金森公司 Midline catheter placement device

Family Cites Families (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823320C (en) 1950-08-15 1951-12-03 Willy Ruesch Catheters, in particular intratracheal catheters and processes for their manufacture
US2936761A (en) 1958-04-25 1960-05-17 Snyder Henry Howard Catheter
US3802418A (en) 1971-02-16 1974-04-09 R Clayton Colon catheter
US3884242A (en) 1971-03-29 1975-05-20 Mpc Kurgisil Catheter assembly
GB1443828A (en) 1973-05-14 1976-07-28 Greenhalgh R M Catheters
JPS506192A (en) 1973-05-18 1975-01-22
US3983879A (en) 1974-07-25 1976-10-05 Western Acadia, Incorporated Silicone catheter
US4055187A (en) 1976-08-05 1977-10-25 The Kendall Company Catheter with improved balloon assembly
US4251305A (en) 1978-11-01 1981-02-17 Baxter Travenol Laboratories, Inc. Method of radiant heat sealing of a balloon onto a catheter employing tinted shrink tubing
US4402684A (en) 1981-09-16 1983-09-06 The Kendall Company Cannula with soft tip
JPS5886129A (en) * 1981-11-17 1983-05-23 旭光学工業株式会社 Flexible tube of endoscope and production thereof
US4702252A (en) 1983-10-13 1987-10-27 Smiths Industries Public Limited Company Catheters
US5653696A (en) 1984-05-14 1997-08-05 Surgical Systems & Instruments, Inc. Stent unclogging method
US4661095A (en) 1985-02-12 1987-04-28 Becton, Dickinson And Company Method for bonding polyurethane balloons to multilumen catheters
US4596548A (en) 1985-03-25 1986-06-24 Dlp Inc. Single stage venous catheter
US4639252A (en) 1985-04-05 1987-01-27 Research Medical, Inc. Venous return catheter
US5449343A (en) 1985-07-30 1995-09-12 Advanced Cardiovascular Systems, Inc. Steerable dilatation catheter
US5425711A (en) 1988-02-29 1995-06-20 Scimed Life Systems, Inc. Intravascular catheter with distal guide wire lumen and transition member
US4913683A (en) * 1988-07-05 1990-04-03 Medical Engineering Corporation Infusion stent system
US5176661A (en) * 1988-09-06 1993-01-05 Advanced Cardiovascular Systems, Inc. Composite vascular catheter
US4985022A (en) 1988-11-23 1991-01-15 Med Institute, Inc. Catheter having durable and flexible segments
US5484409A (en) 1989-08-25 1996-01-16 Scimed Life Systems, Inc. Intravascular catheter and method for use thereof
US5364357A (en) 1989-09-25 1994-11-15 Schneider (Usa) Inc. Small diameter dilatation catheter having wire reinforced coaxial tubular body
US4990143A (en) 1990-04-09 1991-02-05 Sheridan Catheter Corporation Reinforced medico-surgical tubes
US5279596A (en) 1990-07-27 1994-01-18 Cordis Corporation Intravascular catheter with kink resistant tip
US5041084A (en) 1990-08-09 1991-08-20 Dlp, Inc. Single stage venous catheter
JP2830440B2 (en) 1990-09-21 1998-12-02 東洋紡績株式会社 Cannula
JP2555298B2 (en) 1990-11-10 1996-11-20 テルモ株式会社 CATHETER BALLOON, CATHETER BALLOON MANUFACTURING METHOD, AND BALLOON CATHETER
US5254091A (en) 1991-01-08 1993-10-19 Applied Medical Resources Corporation Low profile balloon catheter and method for making same
US5329923A (en) * 1991-02-15 1994-07-19 Lundquist Ingemar H Torquable catheter
US5217466A (en) * 1991-04-19 1993-06-08 Hasson Harrith M Guide for facilitating the performance of internal surgery
US5195969A (en) 1991-04-26 1993-03-23 Boston Scientific Corporation Co-extruded medical balloons and catheter using such balloons
US5304131A (en) * 1991-07-15 1994-04-19 Paskar Larry D Catheter
EP0600940B1 (en) 1991-07-24 1999-02-24 Advanced Cardiovascular Systems, Inc. Low profile perfusion-type dilatation catheter
US5380304A (en) * 1991-08-07 1995-01-10 Cook Incorporated Flexible, kink-resistant, introducer sheath and method of manufacture
US5269752A (en) 1991-09-12 1993-12-14 Bennett Laurence M Method of extracorporeal treatment using a kink resistant catheter
US5605162A (en) 1991-10-15 1997-02-25 Advanced Cardiovascular Systems, Inc. Method for using a variable stiffness guidewire
JP2979804B2 (en) 1991-12-13 1999-11-15 株式会社ニッショー Aortic occlusion balloon catheter
US5624380A (en) * 1992-03-12 1997-04-29 Olympus Optical Co., Ltd. Multi-degree of freedom manipulator
WO1993018816A1 (en) 1992-03-17 1993-09-30 Scimed Life Systems, Inc. Balloon dilatation catheter having a free core wire
US5334169A (en) 1992-05-11 1994-08-02 American Interventional Technologies, Inc. Reinforced catheter with thin monolithic walls
US5344399A (en) 1992-05-26 1994-09-06 Dlp, Inc. Dual flexible introducer and cannula
US5437288A (en) * 1992-09-04 1995-08-01 Mayo Foundation For Medical Education And Research Flexible catheter guidewire
US5356388A (en) 1992-09-22 1994-10-18 Target Therapeutics, Inc. Perfusion catheter system
US5353486A (en) 1992-11-13 1994-10-11 Minnesota Mining And Manufacturing Company Narrow fiberglass knit tape
US5360406A (en) 1992-11-19 1994-11-01 Minnesota Mining And Manufacturing Company Stylet for retrograde coronary sinus cannula
US5330451A (en) 1992-12-17 1994-07-19 Shelhigh, Inc. Multi purpose perfusion cannula
US5358493A (en) 1993-02-18 1994-10-25 Scimed Life Systems, Inc. Vascular access catheter and methods for manufacture thereof
DE4305376C1 (en) * 1993-02-22 1994-09-29 Wolf Gmbh Richard Medical instrument shaft
US5306245A (en) * 1993-02-23 1994-04-26 Advanced Surgical Inc. Articulating device
US5462523A (en) 1993-05-18 1995-10-31 Target Therapeutics, Inc. Drug delivery system
DE4323585A1 (en) * 1993-07-14 1995-01-19 Delma Elektro Med App Bipolar high-frequency surgical instrument
US5405338A (en) 1993-08-19 1995-04-11 Cordis Corporation Helically wound catheters
JPH09503411A (en) 1993-10-07 1997-04-08 ボストン・サイエンティフィック・コーポレーション Dilatation catheter
US5505698A (en) 1993-10-29 1996-04-09 Medtronic, Inc. Cardioplegia catheter with elongated cuff
US5718861A (en) * 1993-12-20 1998-02-17 C. R. Bard, Incorporated Method of forming intra-aortic balloon catheters
US5460608A (en) * 1994-01-25 1995-10-24 Scimed Life Systems, Inc. Kink free catheter
US5470313A (en) 1994-02-24 1995-11-28 Cardiovascular Dynamics, Inc. Variable diameter balloon dilatation catheter
US5645560A (en) 1995-12-15 1997-07-08 Cardiovascular Dynamics, Inc. Fixed focal balloon for interactive angioplasty and stent implantation
US5843116A (en) 1996-05-02 1998-12-01 Cardiovascular Dynamics, Inc. Focalized intraluminal balloons
US5403292A (en) 1994-05-18 1995-04-04 Schneider (Usa) Inc. Thin wall catheter having enhanced torqueability characteristics
US5681278A (en) 1994-06-23 1997-10-28 Cormedics Corp. Coronary vasculature treatment method
US5454795A (en) 1994-06-27 1995-10-03 Target Therapeutics, Inc. Kink-free spiral-wound catheter
US5669383A (en) * 1994-07-28 1997-09-23 Sims Deltec, Inc. Polyimide sheath for a catheter detector and method
US5569219A (en) 1994-09-13 1996-10-29 Hakki; A-Hamid Collapsible catheter
US5658264A (en) * 1994-11-10 1997-08-19 Target Therapeutics, Inc. High performance spiral-wound catheter
US5762995A (en) * 1995-01-13 1998-06-09 Fuji Photo Optical Co., Ltd. Flexible sheathing tube construction, and method for fabrication thereof
US5593394A (en) 1995-01-24 1997-01-14 Kanesaka; Nozomu Shaft for a catheter system
US5863366A (en) 1995-06-07 1999-01-26 Heartport, Inc. Method of manufacture of a cannula for a medical device
US5762996A (en) 1996-04-15 1998-06-09 Lucas; Daniel R. Silicone balloon catheter
US5836926A (en) * 1996-05-13 1998-11-17 Schneider (Usa) Inc Intravascular catheter
US5769828A (en) 1996-06-13 1998-06-23 Medtronic, Inc. Two-stage venous cannula with expandable reinforcing member
US5755687A (en) 1997-04-01 1998-05-26 Heartport, Inc. Methods and devices for occluding a patient's ascending aorta
US6132397A (en) 1997-05-01 2000-10-17 Chase Medical Inc. Integral aortic arch infusion clamp catheter
US5911734A (en) * 1997-05-08 1999-06-15 Embol-X, Inc. Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US5951539A (en) * 1997-06-10 1999-09-14 Target Therpeutics, Inc. Optimized high performance multiple coil spiral-wound vascular catheter
US5947940A (en) 1997-06-23 1999-09-07 Beisel; Robert F. Catheter reinforced to prevent luminal collapse and tensile failure thereof
US5928192A (en) 1997-07-24 1999-07-27 Embol-X, Inc. Arterial aspiration
US5928193A (en) * 1997-10-03 1999-07-27 Boston Scientific Corporation Balloon catheterization

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003090817A2 (en) * 2002-04-23 2003-11-06 Endobionics, Inc. Improved catheter attachment joints with polymer encapsulation
WO2003090817A3 (en) * 2002-04-23 2004-01-29 Endobionics Inc Improved catheter attachment joints with polymer encapsulation
US20030199852A1 (en) * 2002-04-23 2003-10-23 Endobionics, Inc. Attachment joints with polymer encapsulation
US8323432B2 (en) 2002-12-31 2012-12-04 Abbott Laboratories Vascular Enterprises Limited Catheter and method of manufacturing same
US20040133156A1 (en) * 2003-01-06 2004-07-08 Diaz Joseph Robert Balloon catheter with improved resistance to non-deflation
WO2004062720A1 (en) 2003-01-06 2004-07-29 C. R. Bard, Inc. Balloon catheter with improved resistance to non-deflation
US7628784B2 (en) * 2003-01-06 2009-12-08 C. R. Bard, Inc. Balloon catheter with improved resistance to non-deflation
US20060224225A1 (en) * 2003-06-04 2006-10-05 Terrance Ransbury Implantable intravascular device for defibrillation and/or pacing
US7734343B2 (en) 2003-06-04 2010-06-08 Synecor, Llc Implantable intravascular device for defibrillation and/or pacing
US8239045B2 (en) 2003-06-04 2012-08-07 Synecor Llc Device and method for retaining a medical device within a vessel
US7840282B2 (en) 2003-06-04 2010-11-23 Synecor Llc Method and apparatus for retaining medical implants within body vessels
US7899554B2 (en) 2003-06-04 2011-03-01 Synecor Llc Intravascular System and Method
US7747335B2 (en) 2003-12-12 2010-06-29 Synecor Llc Implantable medical device having pre-implant exoskeleton
US20080065051A1 (en) * 2003-12-12 2008-03-13 Williams Michael S Implantable medical device having pre-implant exoskeleton
US8430988B2 (en) 2003-12-31 2013-04-30 C. R. Bard, Inc. Reinforced multi-lumen catheter
US7972465B2 (en) 2003-12-31 2011-07-05 C. R. Bard, Inc. Reinforced multi-lumen catheter
US20110192008A1 (en) * 2003-12-31 2011-08-11 C. R. Bard, Inc. Reinforced multi-lumen catheter
US20070005003A1 (en) * 2003-12-31 2007-01-04 Patterson Ryan C Reinforced multi-lumen catheter
US20100132879A1 (en) * 2003-12-31 2010-06-03 C.R. Bard, Inc. Reinforced multi-lumen catheter
US20070016149A1 (en) * 2004-01-16 2007-01-18 Marcel Hunn Injection Needle
US8172830B2 (en) * 2004-01-23 2012-05-08 Iscience Interventional Corporation Composite ophthalmic microcannula
US20100240987A1 (en) * 2004-01-23 2010-09-23 Christian Jeffrey J Composite ophthalmic microcannula
US8348924B2 (en) 2004-01-23 2013-01-08 Iscience Surgical Corporation Composite ophthalmic microcannula
US20070179471A1 (en) * 2004-01-23 2007-08-02 Iscience Surgical Corporation Composite ophthalmic microcannula
US20050251091A1 (en) * 2004-05-10 2005-11-10 Usgi Medical Inc. Apparatus and methods for transgastric tissue manipulation
US7658723B2 (en) 2004-05-27 2010-02-09 Abbott Laboratories Catheter having plurality of stiffening members
US20070016132A1 (en) * 2004-05-27 2007-01-18 Oepen Randolf V Catheter having plurality of stiffening members
US7785318B2 (en) 2004-05-27 2010-08-31 Abbott Laboratories Catheter having plurality of stiffening members
US7815627B2 (en) 2004-05-27 2010-10-19 Abbott Laboratories Catheter having plurality of stiffening members
US7794448B2 (en) 2004-05-27 2010-09-14 Abbott Laboratories Multiple lumen catheter and method of making same
US8092634B2 (en) 2004-09-29 2012-01-10 Abbott Laboratories Vascular Enterprises Limited Method for connecting a catheter balloon with a catheter shaft of a balloon catheter
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
WO2006127929A3 (en) * 2005-05-23 2007-03-15 Abbott Lab Catheter having plurality of stiffening members
WO2006127929A2 (en) * 2005-05-23 2006-11-30 Abbott Laboratories Catheter having plurality of stiffening members
US8961532B2 (en) * 2006-01-06 2015-02-24 Bayer Essure Inc. Atraumatic catheter tip
US20070219466A1 (en) * 2006-01-06 2007-09-20 Tremulis W S Atraumatic Catheter Tip
US20080172037A1 (en) * 2006-11-01 2008-07-17 Percutaneous Systems, Inc. Catheter with adjustable column stability and methods for its use
US20090088695A1 (en) * 2007-09-28 2009-04-02 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8147480B2 (en) 2007-09-28 2012-04-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US7766875B2 (en) 2007-09-28 2010-08-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US20090088730A1 (en) * 2007-09-28 2009-04-02 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
EP2042212A1 (en) * 2007-09-28 2009-04-01 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8439892B2 (en) 2007-09-28 2013-05-14 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US20090247987A1 (en) * 2007-11-29 2009-10-01 Chevalier Jr Raymond Drainage Catheter
US9622731B2 (en) * 2008-01-28 2017-04-18 Baxter International Inc. Sealant applicator with malleable section
US20090209916A1 (en) * 2008-01-28 2009-08-20 Baxter International Inc. Sealant applicator with malleable section
JP2014208297A (en) * 2009-06-08 2014-11-06 トライレム メディカル， インコーポレイテッド Side branch balloon
US10493246B2 (en) 2009-06-08 2019-12-03 Trireme Medical, Inc. Side branch balloon
US9095684B2 (en) * 2010-02-09 2015-08-04 Joaquin Martinez-Arraras Bidirectional introducer catheter
US20150335865A1 (en) * 2010-02-09 2015-11-26 Joaquin Martinez-Arraras Bidirectional Introducer Catheter
US20110196233A1 (en) * 2010-02-09 2011-08-11 Joaquin Martinez-Arraras Bidirectional introducer catheter
CN102921090A (en) * 2012-02-27 2013-02-13 上海交通大学医学院附属第三人民医院 Development catheter applied to treatment of chronic total occlusion
US20170027476A1 (en) * 2013-01-23 2017-02-02 Mediguide Ltd. Distributed location sensor
US10441193B2 (en) * 2013-01-23 2019-10-15 St. Jude Medical International Holding S.À R.L. Distributed location sensor

Also Published As

Publication number Publication date
US6319244B2 (en) 2001-11-20

Similar Documents

Publication Publication Date Title
US6319244B2 (en) Catheter with flexible and rigid reinforcements
US6951555B1 (en) Catheter having integral expandable/collapsible lumen
US5609583A (en) Collapsible catheter
US6132397A (en) Integral aortic arch infusion clamp catheter
US6733486B1 (en) Catheter having a reinforcing mandrel
US5171305A (en) Linear eversion catheter with reinforced inner body extension
US8221444B2 (en) Catheter having an improved distal tip
US6939337B2 (en) Medical device including tube having a braid and an expanded coil
US6217548B1 (en) Cardioplegia balloon cannula
US5569219A (en) Collapsible catheter
EP0417189B1 (en) Balloon dilation catheter
US5269752A (en) Method of extracorporeal treatment using a kink resistant catheter
CA1096732A (en) Catheter with improved balloon assembly
US4624657A (en) Medical devices having inflatable portions
US20070078438A1 (en) Catheter assembly and sheath tear assistant tool
US20140194857A1 (en) Catheter with an enhanced pushability
AU2001273446A1 (en) Medical device with braid and coil
US7273487B1 (en) Balloon catheter having a multilayered shaft with variable flexibility
US20040162519A1 (en) Aortic occlusion balloon cannula
US6068608A (en) Method of using integral aortic arch infusion clamp
JPH02283379A (en) Balloon dilation catheter and use thereof
EP1051214A1 (en) Catheter having integral expandable/collapsible lumen
CA2235742A1 (en) Collapsible catheter

Legal Events

Date Code Title Description
AS Assignment

Owner name: CHASE MEDICAL INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SURESH, MITTA;DAVIS, ALBERT;REEL/FRAME:009829/0608

Effective date: 19990315

FEPP Fee payment procedure

Free format text: PAT HOLDER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: LTOS); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: KDL MEDICAL, INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHASE MEDICAL;REEL/FRAME:018787/0109

Effective date: 20061023

AS Assignment

Owner name: COMERICA BANK, CALIFORNIA

Free format text: SECURITY AGREEMENT;ASSIGNOR:KDL MEDICAL, INC.;REEL/FRAME:018847/0242

Effective date: 20070126

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20091120