CA2365162C - Stent having a multiplicity of undulating longitudinals - Google Patents
Stent having a multiplicity of undulating longitudinals Download PDFInfo
- Publication number
- CA2365162C CA2365162C CA002365162A CA2365162A CA2365162C CA 2365162 C CA2365162 C CA 2365162C CA 002365162 A CA002365162 A CA 002365162A CA 2365162 A CA2365162 A CA 2365162A CA 2365162 C CA2365162 C CA 2365162C
- Authority
- CA
- Canada
- Prior art keywords
- stent
- longitudinals
- multiplicity
- rings
- zig
- 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 - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/844—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/825—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having longitudinal struts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
- A61F2210/0019—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation
Abstract
The present invention provides for an expandable stent for use in an artery or other vessel of a human body. The stent structure maintains the patency of the vessel within which the stent is expanded radially outward. One embodiment of the present invention is a stent having a multiplicity of frames joined together by at least two undulating longitudinal structures which can readily change their length in the longitudinal direction so as to provide increased longitudinal flexibility for the stent for easy passage through and placement within a curved vessel such as a coronary artery. The stent is an embodiment of the present invention having frames joined with longitudinal structures and formed from a single, thin- walled piece of metal by laser cutting or chemical etching. Because the stent is fabricated from a single piece of metal, it provides a multiplicity of closed perimeter cells that are formed as a continuous metal structure.
Description
STENT RAVING A MULTIPLICITY OF UNDULATING LONGITUDINALS
FIELD OF THE INVENTION
This invention is in the field of stents for maintaining patency of any one of a multiplicity of vessels of the human body.
FIELD OF THE INVENTION
This invention is in the field of stents for maintaining patency of any one of a multiplicity of vessels of the human body.
2 BACKGROUND OF 'THE INVENTION
In the last decade, many different designs of stents have been used to maintain patency of arteries and other vessels of the human body. In all such devices, hoop strength is an important characteristic. Specifically, the stent must- have enough hoop strength to resist the elastic recoil exerted by the vessel into which the stent is placed.
The Mass stent described in the U.S. Patent No. 4,553,545 and the Dotter stent described in U.S. Patent No. 4,503, 569 are each open helical coils. The Palmaz stent described in the U.S. Patent No. 4,733,665 is of the "chinese finger" design. The Gianturco-Rubin stent currently sold by Cook, Inc. is another stent design which like the stents of Mass, Dotter and Palmaz does not have any closed circular member to optimize hoop strength.
The ideal arterial stent utilizes a minimum wire size of the stent elements to minimize thrombosis at the stent site after implantation. The ideal arterial stent also posses sufficient hoop strength to resist elastic recoil of the artery.
Although the optimum design for maJdmizing hoop strength is a closed circular structure, no prior art stent has been described which has a small diameter when percutaneously inserted into a vessel and which expands into the form of multiplicity of closed circular structures (i.e.
rings) which expand outward against the vessel wall.
BRIEF SUMMARY OF THE PRESENT INVENTION
The present invention is an expandable stent that can be used in an artery or any other vessel of the human body which, when expanded, forms a multiplicity of generally
In the last decade, many different designs of stents have been used to maintain patency of arteries and other vessels of the human body. In all such devices, hoop strength is an important characteristic. Specifically, the stent must- have enough hoop strength to resist the elastic recoil exerted by the vessel into which the stent is placed.
The Mass stent described in the U.S. Patent No. 4,553,545 and the Dotter stent described in U.S. Patent No. 4,503, 569 are each open helical coils. The Palmaz stent described in the U.S. Patent No. 4,733,665 is of the "chinese finger" design. The Gianturco-Rubin stent currently sold by Cook, Inc. is another stent design which like the stents of Mass, Dotter and Palmaz does not have any closed circular member to optimize hoop strength.
The ideal arterial stent utilizes a minimum wire size of the stent elements to minimize thrombosis at the stent site after implantation. The ideal arterial stent also posses sufficient hoop strength to resist elastic recoil of the artery.
Although the optimum design for maJdmizing hoop strength is a closed circular structure, no prior art stent has been described which has a small diameter when percutaneously inserted into a vessel and which expands into the form of multiplicity of closed circular structures (i.e.
rings) which expand outward against the vessel wall.
BRIEF SUMMARY OF THE PRESENT INVENTION
The present invention is an expandable stent that can be used in an artery or any other vessel of the human body which, when expanded, forms a multiplicity of generally
3 circular rings whose closed structure optimizes hoop strength so as to minimize elastic recoil of the vessel into which the stent is inserted. Furthermore, the structure of the stent in the present invention is initially in the form of folded ellipses or ovals which can be formed to a small diameter for percutaneous insertion by means of a stent delivery catheter. The ovals are joined to each other by either a straight or undulating shaped wires which are called "longitudinals" which serve to space the deployed rings within the vessel. Straight longitudinals are used in straight vessels and undulating longitudinals can be employed in either straight or highly curved vessels such as some coronary arteries.
Thus, an object of this im~ention is to provide a stent having a maximum hoop strength by the employment of closed, generally circular structures which are in fact rings.
Another object of this invention is that the rings are initially in the form of ovals at can be folded to fit onto a cylindrical structure at a distal portion of a stent delivery catheter.
A predeployment stent adapted for placement in the vessels of the human body, said stmt comprising: a thin-walled metal cylinder having a longitudinal axis, a proximal end and a distal end; a multiplicity of continuous closed circumferential zig-zag segments, the zig-zag segments being joined one to the other by one or more longitudinals extending in a substantially longitudinal direction, at least a portion of at least one of said longitudinals having an undulating shape; a first zig-zag segment located at the proximal end of the stmt and a second zig-zag segment located at the distal end of the stmt; the first and second zig-zag segments being formed at least in part from a radiopaque metal to provide fluoroscopic indication of the stmt position within the vessel.
Still another object of this invention is that the fully deployed rings are spaced apart by means of longitudinals which are either straight of undulating wires that are placed to be generally parallel to the longitudinal axis of the vessel into which the stent is deployed.
Still another object of this invention is that the pre-deployment stent structure is formed as a single piece out of a metal tube having a smaller inside diameter as compared to the outside diameter of an expandable balloon onto which the pre-deployment stent is mounted.
These and other important objects and advantages of this irnention will become apparent frog the detailed description of the invention and the associated drawings provided herein.
Y
.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of the stent after it has been deployed; i.e., in its post-deployment form.
FIG. 2 is a transverse cross section at section 2-2 of FIG. i illustrating how the longitudinals are joined to the rings.
FIG. 3 is a cross section at section 3-3 of FIG. 2 showing the joining of a single ring to the longitudinals.
FIG. 4 is a side view of the sterit prior to being mounted onto a stent delivery catheter; i.e., in the form of an initial structure.
FIG. 5 is a transverse cross section at section 5-5 of FIG. 4 illustrating how the longitudinals are joined to the ovals.
FIG. 6 is a side view of a preemployment form of the stent structure in which the ovals have been folded into a small diameter cylinder that is placed around a deflated balloon situated near the distal end of a stent delivery catheter.
FIG. 7 is a partial side view of a pre-deployment stent structure showing only two of a multiplicity of folded ovals formed around an expandable balloon in which the ovals are folded in an alternative manner as compared with FIG. 6.
~0 FIG. 8 .is a side view of a post-deployment stent structure which utilizes two undulating longitudinals on opposite sides of the scent for improved placement in curved vessels.
FIG. 9 is a side view of a stent as etched out of a small diameter metal cylinder as a single piece of metal.
DETAILED DESCRI>yITON OF TIE DRAWINGS
FIG. 1 is a side view of the cylindrical stent 1 of the present invention shown in its post- deployment configuration. The stent 1 has a multiplicity of rings 2 which are 5 spaced apart by four wires called longitudinals. As seen in FIGS. 1 and 2, at the top of the stent is longitudinal 4T, at the bottom is longitudinal 4B, at the left side is longitudinal 4L and at the right side is longitudinal 4R. Although FIGS. 1 and 2 show 7 rings and 4 longitudinals, it is apparent that the stent can be made longer by adding rings or incasing the separation between rings. In a similar manner, the stent can be made shorter by reducing the number of rings or decreasing the spacing between rings.
Also variable spacing of the rings is envisioned for accomplishing a variety of purposes including increased hoop strength at a particular section of the stent. Also, it is envisioned that the two or more longitudinals could be utilized for this stent design with a maximum number being 32.
FIGS. 2 and 3 illustrate the joining of the longitudinals to the rings.
Specifically the longitudinals can be placed into cutouts in the form of notches S located on the outside perimeter of the ring 2. The longitudinals can then be spot welded, adhesively bonded or joined by any variety of means to the rings 2. It is also envisioned that the longitudinals could be placed on the inside perimeter of the ring 2, or holes 'could be mechanically or laser drilled through the ring 2 for placement therethrough of the longitudinals.
FIGS. 4 and 5 illustrate a stent 1' shown in one particular form in which it could be fabricated; i.e., in an initial structure form. Specifically, FIGS. 4 and 5 show that this initial form of the stent 1' is a multiplicity of parallel ellipses or ovals 2' each oval having the same minor axis dimension m and major axis dimension M. The oval's minor axis passes through the centre of the longitudinals 4L and 4R. The oval's major axis passes through the centre of the longitudinals 4T and 4B. It is important to note that, if it is desired to have a final outside diameter D (as seen in Fig. 2) of the ring 2 after it is fully deployed, then it can be shown that D is given by the equation DZ = 1/2 (m2+
M2).
To place the stent design of FIGS. 4 and 5 onto a balloon that is mounted near the distal end of a stent delivery catheter, it is necessary to fold the ovals 2' around that balloon. Specifically, the pre-deployment cylindrical stent 1" can be formed onto an expandable balloon 6 as shown in FIG. 6 by folding the ovals 2' about the dotted line F
(which is the minor axis of the oval 2') as shown in FIG. 5. Specifically, as seen in FIG.
Thus, an object of this im~ention is to provide a stent having a maximum hoop strength by the employment of closed, generally circular structures which are in fact rings.
Another object of this invention is that the rings are initially in the form of ovals at can be folded to fit onto a cylindrical structure at a distal portion of a stent delivery catheter.
A predeployment stent adapted for placement in the vessels of the human body, said stmt comprising: a thin-walled metal cylinder having a longitudinal axis, a proximal end and a distal end; a multiplicity of continuous closed circumferential zig-zag segments, the zig-zag segments being joined one to the other by one or more longitudinals extending in a substantially longitudinal direction, at least a portion of at least one of said longitudinals having an undulating shape; a first zig-zag segment located at the proximal end of the stmt and a second zig-zag segment located at the distal end of the stmt; the first and second zig-zag segments being formed at least in part from a radiopaque metal to provide fluoroscopic indication of the stmt position within the vessel.
Still another object of this invention is that the fully deployed rings are spaced apart by means of longitudinals which are either straight of undulating wires that are placed to be generally parallel to the longitudinal axis of the vessel into which the stent is deployed.
Still another object of this invention is that the pre-deployment stent structure is formed as a single piece out of a metal tube having a smaller inside diameter as compared to the outside diameter of an expandable balloon onto which the pre-deployment stent is mounted.
These and other important objects and advantages of this irnention will become apparent frog the detailed description of the invention and the associated drawings provided herein.
Y
.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of the stent after it has been deployed; i.e., in its post-deployment form.
FIG. 2 is a transverse cross section at section 2-2 of FIG. i illustrating how the longitudinals are joined to the rings.
FIG. 3 is a cross section at section 3-3 of FIG. 2 showing the joining of a single ring to the longitudinals.
FIG. 4 is a side view of the sterit prior to being mounted onto a stent delivery catheter; i.e., in the form of an initial structure.
FIG. 5 is a transverse cross section at section 5-5 of FIG. 4 illustrating how the longitudinals are joined to the ovals.
FIG. 6 is a side view of a preemployment form of the stent structure in which the ovals have been folded into a small diameter cylinder that is placed around a deflated balloon situated near the distal end of a stent delivery catheter.
FIG. 7 is a partial side view of a pre-deployment stent structure showing only two of a multiplicity of folded ovals formed around an expandable balloon in which the ovals are folded in an alternative manner as compared with FIG. 6.
~0 FIG. 8 .is a side view of a post-deployment stent structure which utilizes two undulating longitudinals on opposite sides of the scent for improved placement in curved vessels.
FIG. 9 is a side view of a stent as etched out of a small diameter metal cylinder as a single piece of metal.
DETAILED DESCRI>yITON OF TIE DRAWINGS
FIG. 1 is a side view of the cylindrical stent 1 of the present invention shown in its post- deployment configuration. The stent 1 has a multiplicity of rings 2 which are 5 spaced apart by four wires called longitudinals. As seen in FIGS. 1 and 2, at the top of the stent is longitudinal 4T, at the bottom is longitudinal 4B, at the left side is longitudinal 4L and at the right side is longitudinal 4R. Although FIGS. 1 and 2 show 7 rings and 4 longitudinals, it is apparent that the stent can be made longer by adding rings or incasing the separation between rings. In a similar manner, the stent can be made shorter by reducing the number of rings or decreasing the spacing between rings.
Also variable spacing of the rings is envisioned for accomplishing a variety of purposes including increased hoop strength at a particular section of the stent. Also, it is envisioned that the two or more longitudinals could be utilized for this stent design with a maximum number being 32.
FIGS. 2 and 3 illustrate the joining of the longitudinals to the rings.
Specifically the longitudinals can be placed into cutouts in the form of notches S located on the outside perimeter of the ring 2. The longitudinals can then be spot welded, adhesively bonded or joined by any variety of means to the rings 2. It is also envisioned that the longitudinals could be placed on the inside perimeter of the ring 2, or holes 'could be mechanically or laser drilled through the ring 2 for placement therethrough of the longitudinals.
FIGS. 4 and 5 illustrate a stent 1' shown in one particular form in which it could be fabricated; i.e., in an initial structure form. Specifically, FIGS. 4 and 5 show that this initial form of the stent 1' is a multiplicity of parallel ellipses or ovals 2' each oval having the same minor axis dimension m and major axis dimension M. The oval's minor axis passes through the centre of the longitudinals 4L and 4R. The oval's major axis passes through the centre of the longitudinals 4T and 4B. It is important to note that, if it is desired to have a final outside diameter D (as seen in Fig. 2) of the ring 2 after it is fully deployed, then it can be shown that D is given by the equation DZ = 1/2 (m2+
M2).
To place the stent design of FIGS. 4 and 5 onto a balloon that is mounted near the distal end of a stent delivery catheter, it is necessary to fold the ovals 2' around that balloon. Specifically, the pre-deployment cylindrical stent 1" can be formed onto an expandable balloon 6 as shown in FIG. 6 by folding the ovals 2' about the dotted line F
(which is the minor axis of the oval 2') as shown in FIG. 5. Specifically, as seen in FIG.
4, the top and bottom of the ovals 2' could be held stationery while the side longitudinals 4R and 4L are pushed to the left which results in the pre-deployment structure which is shown as the stent 1" in FIG. 6. An optimum design has the folded ovals 2" as shown in FIG. 6 with the stent 1" being a cylinder whose outside diameter is equal in size to the minor axis dimension m. When the balloon 6 of FIG. 6 is expanded, the pre-deployment stent 1" structure forms the post deployment stent 1 structure having circular rings 2 as shown in FIGS. 1 and 2.
The stent 1" is an alternative embodiment for a pre-deployment structure of the stent of the present invention as it is placed onto a balloon. Specifically, FIG. 7 shows 2 folded rings 2" of a multiple ring stent 1". The stent 1" being formed by holding the top and bottom of the stent 1' of FIG. 4 stationery while pushing the longitudinal 4R to the left and pushing the longitudinal 4L to the right. Like the stent 1" of FIG. 6, when mounted onto a balloon, the stent 1" has a cylindrical shape with a diameter equal to the dimension m.
FIGS. 1 to 7 inclusive illustrate stents that employ longitudinals that are formed from generally straight wires. FIG. 8 shows an alternative embodiment of a stent 10 that has two undulating longitudinals. Specifically, the left side longitudinal 14L
(shown as dotted lines) and the right side longitudinal 14R are each undulating shaped S longitudinals. A stent such as stent 10 could have two or more undulating longitudinals.
Such a stent would bend more easily during insertion into a vessel and would be more readily adaptable for placement in curved vessels such as some coronary arteries.
Typically, the rings and longitudinals of the stents would be made of the same material. Typical metals used for such a stent would be stainless steel, tantalum, titanium, or a shape memory metal such as Nitinol. If Nitinol is used, the stent would be heat treated into the shape at body temperature having circular rings 2 as shown in FIGS. 1 and 2. The rings could then be distorted into ovals as shown in FIGS.
4 and 5 and then mounted onto a stent delivery catheter which does not employ a balloon but is of the more general shape described in the previously cited U.S. Patent No.
4,553,545 by C.T. Dotter. Such a design would provide the desired stent structure having a multiplicity of generally circular rings instead of the Dotter design of a helical spring which inherently has a lesser hoop strength as compared to the present invention.
It should be understood that once the ovals are folded onto a stent delivery catheter, when they fully deploy, they do not form perfectly circular rings as shown in FIG. 2, but rather they are of a generally circular shape. Such comparatively small deviations from an exactly circular shape do not appreciably decrease hoop strength because they are in fact closed structures that are almost exactly circular.
It should also be understood that at least part of the end rings of the stent could be fabricated from or coated with a radiopacque metal such as tantalum or gold to provide a fluoroscopic indication of the stent position within a vessel.
However, the other rings and the longitudinals could be made from a much less dense metal which would provide less obscuration of the central region within the stent. For example, the stent rings and longitudinals could all be fabricated from titanium or a titanium alloy S except the end rings which could be formed from gold which is then plated with titanium.
Thus, the entire outside surface of the stent would be titanium, which is known to be a comparatively non-thrombogenic metal while the gold in the end rings provides an improved fluoroscopic image of the stent extremities.
The dimensions of stent rings are typically 0.1 to 0.3 mm thick, with a width of 0.1 to 0.5 mm and an outside diameter D between 2.0 and 30.0 mm depending on the luminal diameter of the vessel into which it is inserted. The length of the stent could be between 1 and 10 cm. The wire diameter for the longitudinals would typically be between 0.05 and 0.5 mm.
Although the designs of FIGS. 1 through 7 inclusive illustrate separate longitudinals attached to a multiplicity of rings, this invention also contemplates an initial stent structure which is chemically etched from thin-walled tubing having an oval transverse cross section. Thus the oval and longitudinals would be formed from a single piece of metal thus precluding the need for attaching the longitudinals to the rings. In a similar manner laser or EDM machining could be used to form the stent from a thin walled tube.
It is further anticipated that a pre-deployment stent structure 20 as shown in FIG.
9 could be formed from a thin-walled cylindrical tube whose inside diameter is slightly smaller than the outside diameter of the balloon 6 shown in FIG. 6. A pattern such as that shown in either FIG. 6 or FIG. 7 could be photoetched onto a thin-walled metal cylinder. The one piece structure 20 shown in FIG. 9 has folded ovals 22 and longitudinals 23T, 24B, 24R and (not shown) 24L. This pre-deployment stent structure 20 could then be mounted onto the expandable balloon; the stent having sufficient elastic recoil to firmly grasp down onto the balloon.
S Various other modifications, adaptations, and alternative designs are of course possible in light of the above teachings. Therefore, it should be understood at this time that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.
The stent 1" is an alternative embodiment for a pre-deployment structure of the stent of the present invention as it is placed onto a balloon. Specifically, FIG. 7 shows 2 folded rings 2" of a multiple ring stent 1". The stent 1" being formed by holding the top and bottom of the stent 1' of FIG. 4 stationery while pushing the longitudinal 4R to the left and pushing the longitudinal 4L to the right. Like the stent 1" of FIG. 6, when mounted onto a balloon, the stent 1" has a cylindrical shape with a diameter equal to the dimension m.
FIGS. 1 to 7 inclusive illustrate stents that employ longitudinals that are formed from generally straight wires. FIG. 8 shows an alternative embodiment of a stent 10 that has two undulating longitudinals. Specifically, the left side longitudinal 14L
(shown as dotted lines) and the right side longitudinal 14R are each undulating shaped S longitudinals. A stent such as stent 10 could have two or more undulating longitudinals.
Such a stent would bend more easily during insertion into a vessel and would be more readily adaptable for placement in curved vessels such as some coronary arteries.
Typically, the rings and longitudinals of the stents would be made of the same material. Typical metals used for such a stent would be stainless steel, tantalum, titanium, or a shape memory metal such as Nitinol. If Nitinol is used, the stent would be heat treated into the shape at body temperature having circular rings 2 as shown in FIGS. 1 and 2. The rings could then be distorted into ovals as shown in FIGS.
4 and 5 and then mounted onto a stent delivery catheter which does not employ a balloon but is of the more general shape described in the previously cited U.S. Patent No.
4,553,545 by C.T. Dotter. Such a design would provide the desired stent structure having a multiplicity of generally circular rings instead of the Dotter design of a helical spring which inherently has a lesser hoop strength as compared to the present invention.
It should be understood that once the ovals are folded onto a stent delivery catheter, when they fully deploy, they do not form perfectly circular rings as shown in FIG. 2, but rather they are of a generally circular shape. Such comparatively small deviations from an exactly circular shape do not appreciably decrease hoop strength because they are in fact closed structures that are almost exactly circular.
It should also be understood that at least part of the end rings of the stent could be fabricated from or coated with a radiopacque metal such as tantalum or gold to provide a fluoroscopic indication of the stent position within a vessel.
However, the other rings and the longitudinals could be made from a much less dense metal which would provide less obscuration of the central region within the stent. For example, the stent rings and longitudinals could all be fabricated from titanium or a titanium alloy S except the end rings which could be formed from gold which is then plated with titanium.
Thus, the entire outside surface of the stent would be titanium, which is known to be a comparatively non-thrombogenic metal while the gold in the end rings provides an improved fluoroscopic image of the stent extremities.
The dimensions of stent rings are typically 0.1 to 0.3 mm thick, with a width of 0.1 to 0.5 mm and an outside diameter D between 2.0 and 30.0 mm depending on the luminal diameter of the vessel into which it is inserted. The length of the stent could be between 1 and 10 cm. The wire diameter for the longitudinals would typically be between 0.05 and 0.5 mm.
Although the designs of FIGS. 1 through 7 inclusive illustrate separate longitudinals attached to a multiplicity of rings, this invention also contemplates an initial stent structure which is chemically etched from thin-walled tubing having an oval transverse cross section. Thus the oval and longitudinals would be formed from a single piece of metal thus precluding the need for attaching the longitudinals to the rings. In a similar manner laser or EDM machining could be used to form the stent from a thin walled tube.
It is further anticipated that a pre-deployment stent structure 20 as shown in FIG.
9 could be formed from a thin-walled cylindrical tube whose inside diameter is slightly smaller than the outside diameter of the balloon 6 shown in FIG. 6. A pattern such as that shown in either FIG. 6 or FIG. 7 could be photoetched onto a thin-walled metal cylinder. The one piece structure 20 shown in FIG. 9 has folded ovals 22 and longitudinals 23T, 24B, 24R and (not shown) 24L. This pre-deployment stent structure 20 could then be mounted onto the expandable balloon; the stent having sufficient elastic recoil to firmly grasp down onto the balloon.
S Various other modifications, adaptations, and alternative designs are of course possible in light of the above teachings. Therefore, it should be understood at this time that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.
Claims (3)
1. A predeployment stent adapted for placement in the vessels, said stent comprising:
a thin-walled metal cylinder having a longitudinal axis, a proximal end and a distal end;
a multiplicity of continuous closed circumferential zig-zag segments, the zig-zag segments being joined one to the other by one or more longitudinals extending in a substantially longitudinal direction, at least a portion of at least one of said longitudinals having an undulating shape;
a first zig-zag segment located at the proximal end of the stent and a second zig-zag segment located at the distal end of the stent;
the first and second zig-zag segments being formed at least in part from a radiopaque metal to provide fluoroscopic indication of the stent position within the vessel.
a thin-walled metal cylinder having a longitudinal axis, a proximal end and a distal end;
a multiplicity of continuous closed circumferential zig-zag segments, the zig-zag segments being joined one to the other by one or more longitudinals extending in a substantially longitudinal direction, at least a portion of at least one of said longitudinals having an undulating shape;
a first zig-zag segment located at the proximal end of the stent and a second zig-zag segment located at the distal end of the stent;
the first and second zig-zag segments being formed at least in part from a radiopaque metal to provide fluoroscopic indication of the stent position within the vessel.
2. The stent of claim 1 wherein the radiopaque metal is gold.
3. The stent of claim 1 wherein the radiopaque material is plated on the zig-zag segment.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/202,128 US5643312A (en) | 1994-02-25 | 1994-02-25 | Stent having a multiplicity of closed circular structures |
US08/202,128 | 1994-02-25 | ||
CA002142939A CA2142939C (en) | 1994-02-25 | 1995-02-20 | Stent having a multiplicity of closed circular structures |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002142939A Division CA2142939C (en) | 1994-02-25 | 1995-02-20 | Stent having a multiplicity of closed circular structures |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2365162A1 CA2365162A1 (en) | 1995-08-26 |
CA2365162C true CA2365162C (en) | 2003-04-01 |
Family
ID=22748604
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002363876A Expired - Lifetime CA2363876C (en) | 1994-02-25 | 1995-02-20 | Stent having a multiplicity of undulating longitudinals |
CA002365162A Expired - Lifetime CA2365162C (en) | 1994-02-25 | 1995-02-20 | Stent having a multiplicity of undulating longitudinals |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002363876A Expired - Lifetime CA2363876C (en) | 1994-02-25 | 1995-02-20 | Stent having a multiplicity of undulating longitudinals |
Country Status (8)
Country | Link |
---|---|
US (9) | US5879370A (en) |
AT (2) | ATE166782T1 (en) |
CA (2) | CA2363876C (en) |
DE (2) | DE69514690T3 (en) |
ES (2) | ES2116680T3 (en) |
PT (1) | PT821920E (en) |
SI (2) | SI0821920T2 (en) |
TW (1) | TW309436B (en) |
Families Citing this family (252)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69514690T3 (en) * | 1994-02-25 | 2006-09-14 | Fischell, Robert E. | stent |
US6464722B2 (en) | 1994-03-17 | 2002-10-15 | Medinol, Ltd. | Flexible expandable stent |
US6461381B2 (en) | 1994-03-17 | 2002-10-08 | Medinol, Ltd. | Flexible expandable stent |
WO1995031945A1 (en) * | 1994-05-19 | 1995-11-30 | Scimed Life Systems, Inc. | Improved tissue supporting devices |
US5575816A (en) | 1994-08-12 | 1996-11-19 | Meadox Medicals, Inc. | High strength and high density intraluminal wire stent |
US6331188B1 (en) | 1994-08-31 | 2001-12-18 | Gore Enterprise Holdings, Inc. | Exterior supported self-expanding stent-graft |
US6015429A (en) * | 1994-09-08 | 2000-01-18 | Gore Enterprise Holdings, Inc. | Procedures for introducing stents and stent-grafts |
US7204848B1 (en) | 1995-03-01 | 2007-04-17 | Boston Scientific Scimed, Inc. | Longitudinally flexible expandable stent |
US6981986B1 (en) * | 1995-03-01 | 2006-01-03 | Boston Scientific Scimed, Inc. | Longitudinally flexible expandable stent |
EP0866677A4 (en) | 1995-12-14 | 1999-10-27 | Prograft Medical Inc | Stent-graft deployment apparatus and method |
US6042605A (en) | 1995-12-14 | 2000-03-28 | Gore Enterprose Holdings, Inc. | Kink resistant stent-graft |
CA2192520A1 (en) | 1996-03-05 | 1997-09-05 | Ian M. Penn | Expandable stent and method for delivery of same |
EP1477133B9 (en) * | 1996-03-05 | 2007-11-21 | Evysio Medical Devices Ulc | Expandable stent |
US6796997B1 (en) | 1996-03-05 | 2004-09-28 | Evysio Medical Devices Ulc | Expandable stent |
US20040106985A1 (en) * | 1996-04-26 | 2004-06-03 | Jang G. David | Intravascular stent |
US6235053B1 (en) * | 1998-02-02 | 2001-05-22 | G. David Jang | Tubular stent consists of chevron-shape expansion struts and contralaterally attached diagonal connectors |
JP4636634B2 (en) | 1996-04-26 | 2011-02-23 | ボストン サイエンティフィック サイムド,インコーポレイテッド | Intravascular stent |
US6152957A (en) * | 1996-04-26 | 2000-11-28 | Jang; G. David | Intravascular stent |
US6241760B1 (en) * | 1996-04-26 | 2001-06-05 | G. David Jang | Intravascular stent |
CN1166346C (en) * | 1996-06-20 | 2004-09-15 | 瓦斯卡泰克有限公司 | Prosthetic repair of body passages |
US6352561B1 (en) | 1996-12-23 | 2002-03-05 | W. L. Gore & Associates | Implant deployment apparatus |
US6551350B1 (en) | 1996-12-23 | 2003-04-22 | Gore Enterprise Holdings, Inc. | Kink resistant bifurcated prosthesis |
US5827321A (en) * | 1997-02-07 | 1998-10-27 | Cornerstone Devices, Inc. | Non-Foreshortening intraluminal prosthesis |
US20040267350A1 (en) * | 2002-10-30 | 2004-12-30 | Roubin Gary S. | Non-foreshortening intraluminal prosthesis |
US6409755B1 (en) * | 1997-05-29 | 2002-06-25 | Scimed Life Systems, Inc. | Balloon expandable stent with a self-expanding portion |
US7753950B2 (en) | 1997-08-13 | 2010-07-13 | Advanced Cardiovascular Systems, Inc. | Stent and catheter assembly and method for treating bifurcations |
US6241762B1 (en) * | 1998-03-30 | 2001-06-05 | Conor Medsystems, Inc. | Expandable medical device with ductile hinges |
US20030040790A1 (en) * | 1998-04-15 | 2003-02-27 | Furst Joseph G. | Stent coating |
US20020099438A1 (en) * | 1998-04-15 | 2002-07-25 | Furst Joseph G. | Irradiated stent coating |
US6436133B1 (en) * | 1998-04-15 | 2002-08-20 | Joseph G. Furst | Expandable graft |
US6206916B1 (en) | 1998-04-15 | 2001-03-27 | Joseph G. Furst | Coated intraluminal graft |
US6168621B1 (en) * | 1998-05-29 | 2001-01-02 | Scimed Life Systems, Inc. | Balloon expandable stent with a self-expanding portion |
US6740113B2 (en) * | 1998-05-29 | 2004-05-25 | Scimed Life Systems, Inc. | Balloon expandable stent with a self-expanding portion |
US7967855B2 (en) * | 1998-07-27 | 2011-06-28 | Icon Interventional Systems, Inc. | Coated medical device |
US8070796B2 (en) | 1998-07-27 | 2011-12-06 | Icon Interventional Systems, Inc. | Thrombosis inhibiting graft |
US6461380B1 (en) | 1998-07-28 | 2002-10-08 | Advanced Cardiovascular Systems, Inc. | Stent configuration |
GB2344053A (en) * | 1998-11-30 | 2000-05-31 | Imperial College | Stents for blood vessels |
US6251134B1 (en) * | 1999-02-28 | 2001-06-26 | Inflow Dynamics Inc. | Stent with high longitudinal flexibility |
US6569193B1 (en) * | 1999-07-22 | 2003-05-27 | Advanced Cardiovascular Systems, Inc. | Tapered self-expanding stent |
US6733513B2 (en) | 1999-11-04 | 2004-05-11 | Advanced Bioprosthetic Surfaces, Ltd. | Balloon catheter having metal balloon and method of making same |
US6679910B1 (en) | 1999-11-12 | 2004-01-20 | Latin American Devices Llc | Intraluminal stent |
US7235092B2 (en) * | 1999-11-19 | 2007-06-26 | Advanced Bio Prosthetic Surfaces, Ltd. | Guidewires and thin film catheter-sheaths and method of making same |
US7300457B2 (en) | 1999-11-19 | 2007-11-27 | Advanced Bio Prosthetic Surfaces, Ltd. | Self-supporting metallic implantable grafts, compliant implantable medical devices and methods of making same |
US6936066B2 (en) * | 1999-11-19 | 2005-08-30 | Advanced Bio Prosthetic Surfaces, Ltd. | Complaint implantable medical devices and methods of making same |
US8458879B2 (en) | 2001-07-03 | 2013-06-11 | Advanced Bio Prosthetic Surfaces, Ltd., A Wholly Owned Subsidiary Of Palmaz Scientific, Inc. | Method of fabricating an implantable medical device |
US6849085B2 (en) | 1999-11-19 | 2005-02-01 | Advanced Bio Prosthetic Surfaces, Ltd. | Self-supporting laminated films, structural materials and medical devices manufactured therefrom and method of making same |
US6379383B1 (en) | 1999-11-19 | 2002-04-30 | Advanced Bio Prosthetic Surfaces, Ltd. | Endoluminal device exhibiting improved endothelialization and method of manufacture thereof |
US7736687B2 (en) * | 2006-01-31 | 2010-06-15 | Advance Bio Prosthetic Surfaces, Ltd. | Methods of making medical devices |
US10172730B2 (en) * | 1999-11-19 | 2019-01-08 | Vactronix Scientific, Llc | Stents with metallic covers and methods of making same |
US7195641B2 (en) | 1999-11-19 | 2007-03-27 | Advanced Bio Prosthetic Surfaces, Ltd. | Valvular prostheses having metal or pseudometallic construction and methods of manufacture |
US6537310B1 (en) | 1999-11-19 | 2003-03-25 | Advanced Bio Prosthetic Surfaces, Ltd. | Endoluminal implantable devices and method of making same |
US6695865B2 (en) | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
US6616689B1 (en) | 2000-05-03 | 2003-09-09 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
US8845713B2 (en) * | 2000-05-12 | 2014-09-30 | Advanced Bio Prosthetic Surfaces, Ltd., A Wholly Owned Subsidiary Of Palmaz Scientific, Inc. | Self-supporting laminated films, structural materials and medical devices manufactured therefrom and methods of making same |
US6554848B2 (en) | 2000-06-02 | 2003-04-29 | Advanced Cardiovascular Systems, Inc. | Marker device for rotationally orienting a stent delivery system prior to deploying a curved self-expanding stent |
US6572646B1 (en) | 2000-06-02 | 2003-06-03 | Advanced Cardiovascular Systems, Inc. | Curved nitinol stent for extremely tortuous anatomy |
US6805704B1 (en) | 2000-06-26 | 2004-10-19 | C. R. Bard, Inc. | Intraluminal stents |
US6709451B1 (en) | 2000-07-14 | 2004-03-23 | Norman Noble, Inc. | Channeled vascular stent apparatus and method |
FR2812498B1 (en) | 2000-07-28 | 2003-03-14 | Sagem | AUDIO AND / OR VIDEO SEQUENCE SELECTION DEVICE |
CA2355477A1 (en) | 2000-08-23 | 2002-02-23 | Cordis Corporation | Low profile mounting method for low profile balloon expandable stents |
US7766956B2 (en) * | 2000-09-22 | 2010-08-03 | Boston Scientific Scimed, Inc. | Intravascular stent and assembly |
US6699278B2 (en) | 2000-09-22 | 2004-03-02 | Cordis Corporation | Stent with optimal strength and radiopacity characteristics |
AU2002233936A1 (en) * | 2000-11-07 | 2002-05-21 | Advanced Bio Prosthetic Surfaces, Ltd. | Endoluminal stent, self-fupporting endoluminal graft and methods of making same |
EP1337200A2 (en) * | 2000-11-17 | 2003-08-27 | Evysio Medical Devices Ulc | Endovascular prosthesis |
US6929660B1 (en) | 2000-12-22 | 2005-08-16 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
CN1262252C (en) | 2001-01-15 | 2006-07-05 | 泰尔茂株式会社 | Stent |
CN1531413A (en) * | 2001-03-20 | 2004-09-22 | GMPǿ�ı�����˾ | Rail stent |
US6585753B2 (en) * | 2001-03-28 | 2003-07-01 | Scimed Life Systems, Inc. | Expandable coil stent |
EP1258230A3 (en) * | 2001-03-29 | 2003-12-10 | CardioSafe Ltd | Balloon catheter device |
DE10118944B4 (en) * | 2001-04-18 | 2013-01-31 | Merit Medical Systems, Inc. | Removable, essentially cylindrical implants |
US6562067B2 (en) * | 2001-06-08 | 2003-05-13 | Cordis Corporation | Stent with interlocking elements |
US6629994B2 (en) * | 2001-06-11 | 2003-10-07 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
US6939373B2 (en) * | 2003-08-20 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
US6635083B1 (en) | 2001-06-25 | 2003-10-21 | Advanced Cardiovascular Systems, Inc. | Stent with non-linear links and method of use |
US6749629B1 (en) | 2001-06-27 | 2004-06-15 | Advanced Cardiovascular Systems, Inc. | Stent pattern with figure-eights |
US7547321B2 (en) * | 2001-07-26 | 2009-06-16 | Alveolus Inc. | Removable stent and method of using the same |
US7842083B2 (en) * | 2001-08-20 | 2010-11-30 | Innovational Holdings, Llc. | Expandable medical device with improved spatial distribution |
GB0121980D0 (en) * | 2001-09-11 | 2001-10-31 | Cathnet Science Holding As | Expandable stent |
US20030093142A1 (en) * | 2001-10-16 | 2003-05-15 | Elazer Edelman | Stent concept for minimization of deployment related wall shear and injury |
US8740973B2 (en) * | 2001-10-26 | 2014-06-03 | Icon Medical Corp. | Polymer biodegradable medical device |
US6776794B1 (en) | 2001-11-28 | 2004-08-17 | Advanced Cardiovascular Systems, Inc. | Stent pattern with mirror image |
US20040186551A1 (en) * | 2003-01-17 | 2004-09-23 | Xtent, Inc. | Multiple independent nested stent structures and methods for their preparation and deployment |
US8080048B2 (en) | 2001-12-03 | 2011-12-20 | Xtent, Inc. | Stent delivery for bifurcated vessels |
US7182779B2 (en) * | 2001-12-03 | 2007-02-27 | Xtent, Inc. | Apparatus and methods for positioning prostheses for deployment from a catheter |
US7137993B2 (en) * | 2001-12-03 | 2006-11-21 | Xtent, Inc. | Apparatus and methods for delivery of multiple distributed stents |
US7892273B2 (en) * | 2001-12-03 | 2011-02-22 | Xtent, Inc. | Custom length stent apparatus |
US7294146B2 (en) | 2001-12-03 | 2007-11-13 | Xtent, Inc. | Apparatus and methods for delivery of variable length stents |
US7309350B2 (en) * | 2001-12-03 | 2007-12-18 | Xtent, Inc. | Apparatus and methods for deployment of vascular prostheses |
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 |
US7351255B2 (en) * | 2001-12-03 | 2008-04-01 | Xtent, Inc. | Stent delivery apparatus and method |
US7147656B2 (en) | 2001-12-03 | 2006-12-12 | Xtent, Inc. | Apparatus and methods for delivery of braided prostheses |
US7147661B2 (en) * | 2001-12-20 | 2006-12-12 | Boston Scientific Santa Rosa Corp. | Radially expandable stent |
US6656220B1 (en) | 2002-06-17 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
US8016881B2 (en) | 2002-07-31 | 2011-09-13 | Icon Interventional Systems, Inc. | Sutures and surgical staples for anastamoses, wound closures, and surgical closures |
MXPA05001845A (en) * | 2002-08-15 | 2005-11-17 | Gmp Cardiac Care Inc | Stent-graft with rails. |
CA2499961C (en) | 2002-09-26 | 2014-12-30 | Advanced Bio Prosthetic Surfaces, Ltd. | High strength vacuum deposited nitinol alloy films, medical thin film graft materials and method of making same |
US20040093056A1 (en) * | 2002-10-26 | 2004-05-13 | Johnson Lianw M. | Medical appliance delivery apparatus and method of use |
US7959671B2 (en) * | 2002-11-05 | 2011-06-14 | Merit Medical Systems, Inc. | Differential covering and coating methods |
US7875068B2 (en) | 2002-11-05 | 2011-01-25 | Merit Medical Systems, Inc. | Removable biliary stent |
US7527644B2 (en) * | 2002-11-05 | 2009-05-05 | Alveolus Inc. | Stent with geometry determinated functionality and method of making the same |
US7637942B2 (en) * | 2002-11-05 | 2009-12-29 | Merit Medical Systems, Inc. | Coated stent with geometry determinated functionality and method of making the same |
EP1567221A1 (en) * | 2002-11-15 | 2005-08-31 | GMP Cardiac Care, Inc. | Rail stent |
AU2003297273A1 (en) * | 2002-11-15 | 2004-06-15 | Gmp/Cardiac Care, Inc. | Rail stent-graft for repairing abdominal aortic aneurysm |
US6923829B2 (en) * | 2002-11-25 | 2005-08-02 | Advanced Bio Prosthetic Surfaces, Ltd. | Implantable expandable medical devices having regions of differential mechanical properties and methods of making same |
US7678068B2 (en) * | 2002-12-02 | 2010-03-16 | Gi Dynamics, Inc. | Atraumatic delivery devices |
JP4980569B2 (en) | 2002-12-02 | 2012-07-18 | ジーアイ・ダイナミックス・インコーポレーテッド | Gastrointestinal implant device and delivery system for placing the device in the body |
US20070032879A1 (en) * | 2002-12-02 | 2007-02-08 | Levine Andy H | Anti-buckling sleeve |
US7695446B2 (en) * | 2002-12-02 | 2010-04-13 | Gi Dynamics, Inc. | Methods of treatment using a bariatric sleeve |
US7608114B2 (en) | 2002-12-02 | 2009-10-27 | Gi Dynamics, Inc. | Bariatric sleeve |
US7025791B2 (en) | 2002-12-02 | 2006-04-11 | Gi Dynamics, Inc. | Bariatric sleeve |
US7766973B2 (en) | 2005-01-19 | 2010-08-03 | Gi Dynamics, Inc. | Eversion resistant sleeves |
EP1587450A2 (en) * | 2002-12-16 | 2005-10-26 | The Regents Of The University Of Michigan | Assembly and planar structure for use therein which is expandable into a 3-d structure such as a stent and device for making the planar structure |
US7452334B2 (en) * | 2002-12-16 | 2008-11-18 | The Regents Of The University Of Michigan | Antenna stent device for wireless, intraluminal monitoring |
US20050033410A1 (en) * | 2002-12-24 | 2005-02-10 | Novostent Corporation | Vascular prothesis having flexible configuration |
US7846198B2 (en) * | 2002-12-24 | 2010-12-07 | Novostent Corporation | Vascular prosthesis and methods of use |
US20050165469A1 (en) | 2002-12-24 | 2005-07-28 | Michael Hogendijk | Vascular prosthesis including torsional stabilizer and methods of use |
US20040160685A1 (en) * | 2003-01-27 | 2004-08-19 | Everardo Daniel Faires Quiros | Lower rear view mirror (LRVM for short) |
US7637934B2 (en) | 2003-03-31 | 2009-12-29 | Merit Medical Systems, Inc. | Medical appliance optical delivery and deployment apparatus and method |
US7604660B2 (en) | 2003-05-01 | 2009-10-20 | Merit Medical Systems, Inc. | Bifurcated medical appliance delivery apparatus and method |
US7241308B2 (en) * | 2003-06-09 | 2007-07-10 | Xtent, Inc. | Stent deployment systems and methods |
US20040254637A1 (en) | 2003-06-16 | 2004-12-16 | Endotex Interventional Systems, Inc. | Sleeve stent marker |
US6840569B1 (en) * | 2003-07-22 | 2005-01-11 | Arthur Donald Leigh | Caravan |
US20050060025A1 (en) * | 2003-09-12 | 2005-03-17 | Mackiewicz David A. | Radiopaque markers for medical devices |
US20050080475A1 (en) * | 2003-10-14 | 2005-04-14 | Xtent, Inc. A Delaware Corporation | Stent delivery devices and methods |
US7553324B2 (en) * | 2003-10-14 | 2009-06-30 | Xtent, Inc. | Fixed stent delivery devices and methods |
US7192440B2 (en) * | 2003-10-15 | 2007-03-20 | Xtent, Inc. | Implantable stent delivery devices and methods |
US7403966B2 (en) * | 2003-12-08 | 2008-07-22 | Freescale Semiconductor, Inc. | Hardware for performing an arithmetic function |
US8057420B2 (en) | 2003-12-09 | 2011-11-15 | Gi Dynamics, Inc. | Gastrointestinal implant with drawstring |
US7476256B2 (en) | 2003-12-09 | 2009-01-13 | Gi Dynamics, Inc. | Intestinal sleeve |
US20060212042A1 (en) * | 2005-03-17 | 2006-09-21 | Lamport Ronald B | Removal and repositioning device |
US7326236B2 (en) | 2003-12-23 | 2008-02-05 | Xtent, Inc. | Devices and methods for controlling and indicating the length of an interventional element |
US20070156225A1 (en) * | 2003-12-23 | 2007-07-05 | Xtent, Inc. | Automated control mechanisms and methods for custom length stent apparatus |
US20050177221A1 (en) * | 2004-02-06 | 2005-08-11 | Mustapha Jihad A. | Ostial stent |
US20070038283A1 (en) * | 2004-02-06 | 2007-02-15 | Mustapha Jihad A | Ostial stent and balloon |
US20050209627A1 (en) * | 2004-03-18 | 2005-09-22 | Kick George F | Expandable medical access device |
US7323006B2 (en) * | 2004-03-30 | 2008-01-29 | Xtent, Inc. | Rapid exchange interventional devices and methods |
JP4128975B2 (en) * | 2004-04-02 | 2008-07-30 | 株式会社古河テクノマテリアル | Superelastic titanium alloy for living body |
US20050228477A1 (en) * | 2004-04-09 | 2005-10-13 | Xtent, Inc. | Topographic coatings and coating methods for medical devices |
US8999364B2 (en) | 2004-06-15 | 2015-04-07 | Nanyang Technological University | Implantable article, method of forming same and method for reducing thrombogenicity |
US8317859B2 (en) * | 2004-06-28 | 2012-11-27 | J.W. Medical Systems Ltd. | Devices and methods for controlling expandable prostheses during deployment |
US20050288766A1 (en) * | 2004-06-28 | 2005-12-29 | Xtent, Inc. | Devices and methods for controlling expandable prostheses during deployment |
ATE506042T1 (en) * | 2004-07-09 | 2011-05-15 | Gi Dynamics Inc | DEVICES FOR PLACEMENT OF A GASTROINTESTINAL SLEEVE |
WO2006034062A1 (en) * | 2004-09-17 | 2006-03-30 | Gi Dynamics, Inc. | Gastrointestinal anchor |
US20060069424A1 (en) * | 2004-09-27 | 2006-03-30 | Xtent, Inc. | Self-constrained segmented stents and methods for their deployment |
US7887579B2 (en) * | 2004-09-29 | 2011-02-15 | Merit Medical Systems, Inc. | Active stent |
US20060178685A1 (en) * | 2004-12-30 | 2006-08-10 | Cook Incorporated | Balloon expandable plaque cutting device |
ATE413204T1 (en) * | 2004-12-30 | 2008-11-15 | Cook Inc | CATHETER ARRANGEMENT WITH PLAQUE CUTTING BALLOON |
US20060173487A1 (en) * | 2005-01-05 | 2006-08-03 | Cook Incorporated | Angioplasty cutting device and method for treating a stenotic lesion in a body vessel |
US7771382B2 (en) * | 2005-01-19 | 2010-08-10 | Gi Dynamics, Inc. | Resistive anti-obesity devices |
WO2006110197A2 (en) * | 2005-03-03 | 2006-10-19 | Icon Medical Corp. | Polymer biodegradable medical device |
US8323333B2 (en) * | 2005-03-03 | 2012-12-04 | Icon Medical Corp. | Fragile structure protective coating |
EP1858440B1 (en) * | 2005-03-03 | 2024-04-24 | MiRus LLC | Improved metal alloys for medical device |
US20060201601A1 (en) * | 2005-03-03 | 2006-09-14 | Icon Interventional Systems, Inc. | Flexible markers |
US7540995B2 (en) | 2005-03-03 | 2009-06-02 | Icon Medical Corp. | Process for forming an improved metal alloy stent |
US20060264914A1 (en) * | 2005-03-03 | 2006-11-23 | Icon Medical Corp. | Metal alloys for medical devices |
US9107899B2 (en) | 2005-03-03 | 2015-08-18 | Icon Medical Corporation | Metal alloys for medical devices |
US7402168B2 (en) * | 2005-04-11 | 2008-07-22 | Xtent, Inc. | Custom-length stent delivery system with independently operable expansion elements |
US20060229699A1 (en) * | 2005-04-12 | 2006-10-12 | Tehrani Nasser S | Stent-stabilizing device |
US7731654B2 (en) * | 2005-05-13 | 2010-06-08 | Merit Medical Systems, Inc. | Delivery device with viewing window and associated method |
US7938851B2 (en) * | 2005-06-08 | 2011-05-10 | Xtent, Inc. | Devices and methods for operating and controlling interventional apparatus |
US7976488B2 (en) | 2005-06-08 | 2011-07-12 | Gi Dynamics, Inc. | Gastrointestinal anchor compliance |
US7320702B2 (en) * | 2005-06-08 | 2008-01-22 | Xtent, Inc. | Apparatus and methods for deployment of multiple custom-length prostheses (III) |
US8923972B2 (en) | 2005-07-25 | 2014-12-30 | Vascular Dynamics, Inc. | Elliptical element for blood pressure reduction |
US9642726B2 (en) | 2005-07-25 | 2017-05-09 | Vascular Dynamics, Inc. | Devices and methods for control of blood pressure |
US9592136B2 (en) | 2005-07-25 | 2017-03-14 | Vascular Dynamics, Inc. | Devices and methods for control of blood pressure |
US9125732B2 (en) * | 2005-07-25 | 2015-09-08 | Vascular Dynamics, Inc. | Devices and methods for control of blood pressure |
US20070049801A1 (en) * | 2005-08-24 | 2007-03-01 | Lamport Ronald B | Endoscope accessory |
US7708753B2 (en) | 2005-09-27 | 2010-05-04 | Cook Incorporated | Balloon catheter with extendable dilation wire |
US7378359B2 (en) * | 2005-09-27 | 2008-05-27 | Eleazer Howell B | Moldable fibrous construction incorporating non-woven layers |
US20070078511A1 (en) * | 2005-09-30 | 2007-04-05 | Boston Scientific Scimed, Inc. | Hybrid bifurcated stent |
US8123770B2 (en) * | 2005-11-01 | 2012-02-28 | Cook Medical Technologies Llc | Angioplasty cutting device and method for treating a stenotic lesion in a body vessel |
DE102005058409B4 (en) * | 2005-12-07 | 2010-01-21 | Tricumed Medizintechnik Gmbh | Vascular prosthesis for replacement of a section of the aorta or an artery |
US20070179587A1 (en) * | 2006-01-30 | 2007-08-02 | Xtent, Inc. | Apparatus and methods for deployment of custom-length prostheses |
MX2008009389A (en) * | 2006-02-01 | 2008-09-03 | Procter & Gamble | Absorbent article with urine-permeable coversheet. |
US20070191926A1 (en) * | 2006-02-14 | 2007-08-16 | Advanced Cardiovascular Systems, Inc. | Stent pattern for high stent retention |
WO2007109621A2 (en) | 2006-03-20 | 2007-09-27 | Xtent, Inc. | Apparatus and methods for deployment of linked prosthetic segments |
US20070281117A1 (en) * | 2006-06-02 | 2007-12-06 | Xtent, Inc. | Use of plasma in formation of biodegradable stent coating |
US7819836B2 (en) * | 2006-06-23 | 2010-10-26 | Gi Dynamics, Inc. | Resistive anti-obesity devices |
US10219884B2 (en) | 2006-07-10 | 2019-03-05 | First Quality Hygienic, Inc. | Resilient device |
US10004584B2 (en) | 2006-07-10 | 2018-06-26 | First Quality Hygienic, Inc. | Resilient intravaginal device |
US7717892B2 (en) * | 2006-07-10 | 2010-05-18 | Mcneil-Ppc, Inc. | Method of treating urinary incontinence |
BRPI0714288B1 (en) | 2006-07-10 | 2018-06-26 | Mcneil-Ppc, Inc. | INTRAVAGINAL URINARY INCONTINENCE DEVICE |
US8613698B2 (en) | 2006-07-10 | 2013-12-24 | Mcneil-Ppc, Inc. | Resilient device |
WO2008008291A2 (en) * | 2006-07-13 | 2008-01-17 | Icon Medical Corp. | Stent |
US20080269865A1 (en) * | 2006-08-07 | 2008-10-30 | Xtent, Inc. | Custom Length Stent Apparatus |
US7988720B2 (en) | 2006-09-12 | 2011-08-02 | Boston Scientific Scimed, Inc. | Longitudinally flexible expandable stent |
US8778009B2 (en) * | 2006-10-06 | 2014-07-15 | Abbott Cardiovascular Systems Inc. | Intravascular stent |
US20080199510A1 (en) | 2007-02-20 | 2008-08-21 | Xtent, Inc. | Thermo-mechanically controlled implants and methods of use |
US8801647B2 (en) | 2007-02-22 | 2014-08-12 | Gi Dynamics, Inc. | Use of a gastrointestinal sleeve to treat bariatric surgery fistulas and leaks |
US8486132B2 (en) | 2007-03-22 | 2013-07-16 | J.W. Medical Systems Ltd. | Devices and methods for controlling expandable prostheses during deployment |
US20090076584A1 (en) * | 2007-09-19 | 2009-03-19 | Xtent, Inc. | Apparatus and methods for deployment of multiple custom-length prostheses |
US8066755B2 (en) | 2007-09-26 | 2011-11-29 | Trivascular, Inc. | System and method of pivoted stent deployment |
US8663309B2 (en) | 2007-09-26 | 2014-03-04 | Trivascular, Inc. | Asymmetric stent apparatus and method |
US8226701B2 (en) | 2007-09-26 | 2012-07-24 | Trivascular, Inc. | Stent and delivery system for deployment thereof |
JP2010540190A (en) | 2007-10-04 | 2010-12-24 | トリバスキュラー・インコーポレイテッド | Modular vascular graft for low profile transdermal delivery |
US8083789B2 (en) | 2007-11-16 | 2011-12-27 | Trivascular, Inc. | Securement assembly and method for expandable endovascular device |
US8328861B2 (en) | 2007-11-16 | 2012-12-11 | Trivascular, Inc. | Delivery system and method for bifurcated graft |
US9603730B2 (en) | 2007-12-12 | 2017-03-28 | Intact Vascular, Inc. | Endoluminal device and method |
US10022250B2 (en) | 2007-12-12 | 2018-07-17 | Intact Vascular, Inc. | Deployment device for placement of multiple intraluminal surgical staples |
US8128677B2 (en) | 2007-12-12 | 2012-03-06 | Intact Vascular LLC | Device and method for tacking plaque to a blood vessel wall |
US10166127B2 (en) | 2007-12-12 | 2019-01-01 | Intact Vascular, Inc. | Endoluminal device and method |
US9375327B2 (en) | 2007-12-12 | 2016-06-28 | Intact Vascular, Inc. | Endovascular implant |
US7896911B2 (en) | 2007-12-12 | 2011-03-01 | Innovasc Llc | Device and method for tacking plaque to blood vessel wall |
US9101503B2 (en) * | 2008-03-06 | 2015-08-11 | J.W. Medical Systems Ltd. | Apparatus having variable strut length and methods of use |
US8192675B2 (en) | 2008-03-13 | 2012-06-05 | Cook Medical Technologies Llc | Cutting balloon with connector and dilation element |
US8206636B2 (en) | 2008-06-20 | 2012-06-26 | Amaranth Medical Pte. | Stent fabrication via tubular casting processes |
US10898620B2 (en) | 2008-06-20 | 2021-01-26 | Razmodics Llc | Composite stent having multi-axial flexibility and method of manufacture thereof |
US8206635B2 (en) | 2008-06-20 | 2012-06-26 | Amaranth Medical Pte. | Stent fabrication via tubular casting processes |
US11298252B2 (en) | 2008-09-25 | 2022-04-12 | Advanced Bifurcation Systems Inc. | Stent alignment during treatment of a bifurcation |
US8821562B2 (en) | 2008-09-25 | 2014-09-02 | Advanced Bifurcation Systems, Inc. | Partially crimped stent |
US8769796B2 (en) | 2008-09-25 | 2014-07-08 | Advanced Bifurcation Systems, Inc. | Selective stent crimping |
CN102215780B (en) | 2008-09-25 | 2015-10-14 | 高级分支系统股份有限公司 | Part crimped stent |
US8795345B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8529596B2 (en) | 2009-07-08 | 2013-09-10 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8795317B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Embolic obstruction retrieval devices and methods |
US8357178B2 (en) * | 2009-07-08 | 2013-01-22 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8357179B2 (en) * | 2009-07-08 | 2013-01-22 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US20110009941A1 (en) * | 2009-07-08 | 2011-01-13 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US9072537B2 (en) | 2009-07-08 | 2015-07-07 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US20110152604A1 (en) * | 2009-12-23 | 2011-06-23 | Hull Jr Raymond J | Intravaginal incontinence device |
US8398916B2 (en) | 2010-03-04 | 2013-03-19 | Icon Medical Corp. | Method for forming a tubular medical device |
AU2011232360B2 (en) | 2010-03-24 | 2015-10-08 | Advanced Bifurcation Systems Inc. | Methods and systems for treating a bifurcation with provisional side branch stenting |
CN103037816B (en) | 2010-03-24 | 2018-12-28 | 高级分支系统股份有限公司 | System and method for handling furcation |
WO2011119883A1 (en) | 2010-03-24 | 2011-09-29 | Advanced Bifurcation Systems, Inc. | Stent alignment during treatment of a bifurcation |
US9307977B2 (en) | 2010-11-04 | 2016-04-12 | Conmed Corporation | Method and apparatus for securing an object to bone, including the provision and use of a novel suture assembly for securing suture to bone |
US9307978B2 (en) | 2010-11-04 | 2016-04-12 | Linvatec Corporation | Method and apparatus for securing an object to bone, including the provision and use of a novel suture assembly for securing an object to bone |
EP2672932B1 (en) | 2011-02-08 | 2018-09-19 | Advanced Bifurcation Systems, Inc. | System for treating a bifurcation with a fully crimped stent |
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 |
AU2012217577B2 (en) | 2011-02-16 | 2016-06-09 | Linvatec Corporation | Method and apparatus for securing an object to bone |
US10285831B2 (en) | 2011-06-03 | 2019-05-14 | Intact Vascular, Inc. | Endovascular implant |
CA2986656A1 (en) | 2012-01-25 | 2013-08-01 | Intact Vascular, Inc. | Endoluminal device and method |
US8992595B2 (en) | 2012-04-04 | 2015-03-31 | Trivascular, Inc. | Durable stent graft with tapered struts and stable delivery methods and devices |
US9498363B2 (en) | 2012-04-06 | 2016-11-22 | Trivascular, Inc. | Delivery catheter for endovascular device |
US9066825B2 (en) | 2012-05-14 | 2015-06-30 | C.R. Bard, Inc. | Uniformly expandable stent |
FR2995523A1 (en) * | 2012-09-18 | 2014-03-21 | Ct Hospitalier Universitaire Rouen | ENDO-URETHRAL PROSTHESIS |
USD723165S1 (en) | 2013-03-12 | 2015-02-24 | C. R. Bard, Inc. | Stent |
EP3010453A1 (en) * | 2013-06-21 | 2016-04-27 | Christopher G. Kunis | Implant device with stablizer |
US10286190B2 (en) | 2013-12-11 | 2019-05-14 | Cook Medical Technologies Llc | Balloon catheter with dynamic vessel engaging member |
EP2898920B1 (en) | 2014-01-24 | 2018-06-06 | Cook Medical Technologies LLC | Articulating balloon catheter |
EP3134010B1 (en) | 2014-04-25 | 2020-04-22 | Flow Medtech, LLC | Left atrial appendage occlusion device |
BR112016030273A8 (en) | 2014-06-24 | 2021-05-18 | Icon Medical Corp | medical device and method of forming said device |
EP3193790A4 (en) | 2014-09-19 | 2018-10-03 | Flow Medtech, Inc. | Left atrial appendage occlusion device delivery system |
US9433520B2 (en) | 2015-01-29 | 2016-09-06 | Intact Vascular, Inc. | Delivery device and method of delivery |
US9375336B1 (en) | 2015-01-29 | 2016-06-28 | Intact Vascular, Inc. | Delivery device and method of delivery |
JP6543119B2 (en) * | 2015-07-10 | 2019-07-10 | 有限会社Ptmc研究所 | Stent graft |
US10993824B2 (en) | 2016-01-01 | 2021-05-04 | Intact Vascular, Inc. | Delivery device and method of delivery |
US10130465B2 (en) | 2016-02-23 | 2018-11-20 | Abbott Cardiovascular Systems Inc. | Bifurcated tubular graft for treating tricuspid regurgitation |
WO2017151548A1 (en) | 2016-03-04 | 2017-09-08 | Mirus Llc | Stent device for spinal fusion |
US10238513B2 (en) | 2017-07-19 | 2019-03-26 | Abbott Cardiovascular Systems Inc. | Intravascular stent |
US11660218B2 (en) | 2017-07-26 | 2023-05-30 | Intact Vascular, Inc. | Delivery device and method of delivery |
US20230115137A1 (en) * | 2020-03-24 | 2023-04-13 | The Foundry, Llc | Expandable devices and associated systems and methods |
Family Cites Families (101)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1205743A (en) * | 1966-07-15 | 1970-09-16 | Nat Res Dev | Surgical dilator |
US3657744A (en) * | 1970-05-08 | 1972-04-25 | Univ Minnesota | Method for fixing prosthetic implants in a living body |
AU8954282A (en) * | 1981-09-16 | 1983-04-08 | Wallsten, H.I. | Device for application in blood vessels or other difficultly accessible locations and its use |
JPS58127466A (en) * | 1982-01-26 | 1983-07-29 | Fuji Xerox Co Ltd | Picture enlarging and reducing system |
SE445884B (en) * | 1982-04-30 | 1986-07-28 | Medinvent Sa | DEVICE FOR IMPLANTATION OF A RODFORM PROTECTION |
US4503569A (en) * | 1983-03-03 | 1985-03-12 | Dotter Charles T | Transluminally placed expandable graft prosthesis |
US4580568A (en) * | 1984-10-01 | 1986-04-08 | Cook, Incorporated | Percutaneous endovascular stent and method for insertion thereof |
US4733665C2 (en) * | 1985-11-07 | 2002-01-29 | Expandable Grafts Partnership | Expandable intraluminal graft and method and apparatus for implanting an expandable intraluminal graft |
US5102417A (en) * | 1985-11-07 | 1992-04-07 | Expandable Grafts Partnership | Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft |
US4681110A (en) * | 1985-12-02 | 1987-07-21 | Wiktor Dominik M | Catheter arrangement having a blood vessel liner, and method of using it |
DE3786721D1 (en) * | 1986-02-24 | 1993-09-02 | Fischell Robert | DEVICE FOR DETECTING BLOOD VESSELS AND SYSTEM FOR ITS INTRODUCTION. |
US4878906A (en) * | 1986-03-25 | 1989-11-07 | Servetus Partnership | Endoprosthesis for repairing a damaged vessel |
SE453258B (en) * | 1986-04-21 | 1988-01-25 | Medinvent Sa | ELASTIC, SELF-EXPANDING PROTEST AND PROCEDURE FOR ITS MANUFACTURING |
CA1277144C (en) * | 1986-11-21 | 1990-12-04 | G. Bryn Harris | Production of magnesium metal from magnesium containing materials |
US4907336A (en) * | 1987-03-13 | 1990-03-13 | Cook Incorporated | Method of making an endovascular stent and delivery system |
US4800882A (en) * | 1987-03-13 | 1989-01-31 | Cook Incorporated | Endovascular stent and delivery system |
US4795458A (en) * | 1987-07-02 | 1989-01-03 | Regan Barrie F | Stent for use following balloon angioplasty |
US4969458A (en) * | 1987-07-06 | 1990-11-13 | Medtronic, Inc. | Intracoronary stent and method of simultaneous angioplasty and stent implant |
US5201901A (en) | 1987-10-08 | 1993-04-13 | Terumo Kabushiki Kaisha | Expansion unit and apparatus for expanding tubular organ lumen |
US4886062A (en) * | 1987-10-19 | 1989-12-12 | Medtronic, Inc. | Intravascular radially expandable stent and method of implant |
US5133732A (en) * | 1987-10-19 | 1992-07-28 | Medtronic, Inc. | Intravascular stent |
US5192307A (en) * | 1987-12-08 | 1993-03-09 | Wall W Henry | Angioplasty stent |
US5266073A (en) * | 1987-12-08 | 1993-11-30 | Wall W Henry | Angioplasty stent |
US4830003A (en) * | 1988-06-17 | 1989-05-16 | Wolff Rodney G | Compressive stent and delivery system |
CA1322628C (en) * | 1988-10-04 | 1993-10-05 | Richard A. Schatz | Expandable intraluminal graft |
FR2637511B1 (en) | 1988-10-10 | 1994-02-11 | Coatex Sa | COMPATIBILITY AGENT FOR POLYPIGMENTAL AQUEOUS SUSPENSIONS, ONE OF THE PIGMENTS OF WHICH IS HYDRATED CALCIUM SULPHATE |
US5019085A (en) * | 1988-10-25 | 1991-05-28 | Cordis Corporation | Apparatus and method for placement of a stent within a subject vessel |
US4856516A (en) * | 1989-01-09 | 1989-08-15 | Cordis Corporation | Endovascular stent apparatus and method |
CH678393A5 (en) * | 1989-01-26 | 1991-09-13 | Ulrich Prof Dr Med Sigwart | |
US4994071A (en) | 1989-05-22 | 1991-02-19 | Cordis Corporation | Bifurcating stent apparatus and method |
US5292331A (en) * | 1989-08-24 | 1994-03-08 | Applied Vascular Engineering, Inc. | Endovascular support device |
US5674278A (en) * | 1989-08-24 | 1997-10-07 | Arterial Vascular Engineering, Inc. | Endovascular support device |
CA2026604A1 (en) * | 1989-10-02 | 1991-04-03 | Rodney G. Wolff | Articulated stent |
US5059166A (en) * | 1989-12-11 | 1991-10-22 | Medical Innovative Technologies R & D Limited Partnership | Intra-arterial stent with the capability to inhibit intimal hyperplasia |
US5176617A (en) * | 1989-12-11 | 1993-01-05 | Medical Innovative Technologies R & D Limited Partnership | Use of a stent with the capability to inhibit malignant growth in a vessel such as a biliary duct |
JPH067843B2 (en) * | 1990-02-15 | 1994-02-02 | 寛治 井上 | Artificial blood vessel with frame |
DE9117152U1 (en) * | 1990-10-09 | 1996-07-11 | Cook Inc | Stent |
FR2671280B1 (en) * | 1991-01-03 | 1993-03-05 | Sgro Jean Claude | SELF-EXHIBITING VASCULAR STENT WITH PERMANENT ELASTICITY, LOW SHORTENING AND ITS APPLICATION MATERIAL. |
US5135536A (en) | 1991-02-05 | 1992-08-04 | Cordis Corporation | Endovascular stent and method |
US5116365A (en) * | 1991-02-22 | 1992-05-26 | Cordis Corporation | Stent apparatus and method for making |
US5527354A (en) * | 1991-06-28 | 1996-06-18 | Cook Incorporated | Stent formed of half-round wire |
US5314472A (en) * | 1991-10-01 | 1994-05-24 | Cook Incorporated | Vascular stent |
US5269802A (en) * | 1991-09-10 | 1993-12-14 | Garber Bruce B | Prostatic stent |
US5443498A (en) * | 1991-10-01 | 1995-08-22 | Cook Incorporated | Vascular stent and method of making and implanting a vacsular stent |
US5290305A (en) * | 1991-10-11 | 1994-03-01 | Kanji Inoue | Appliance collapsible for insertion into human organs and capable of resilient restoration |
CA2380683C (en) * | 1991-10-28 | 2006-08-08 | Advanced Cardiovascular Systems, Inc. | Expandable stents and method for making same |
US5507767A (en) * | 1992-01-15 | 1996-04-16 | Cook Incorporated | Spiral stent |
US5405377A (en) * | 1992-02-21 | 1995-04-11 | Endotech Ltd. | Intraluminal stent |
US5507771A (en) * | 1992-06-15 | 1996-04-16 | Cook Incorporated | Stent assembly |
US5496365A (en) * | 1992-07-02 | 1996-03-05 | Sgro; Jean-Claude | Autoexpandable vascular endoprosthesis |
FR2693366B1 (en) * | 1992-07-09 | 1994-09-02 | Celsa Lg | Device forming a vascular prosthesis usable for the treatment of aneurysms. |
JPH0641745A (en) | 1992-07-24 | 1994-02-15 | Hitachi Zosen Corp | Vapor deposition method of aluminum on both surfaces of band-shaped substrate |
US5382261A (en) * | 1992-09-01 | 1995-01-17 | Expandable Grafts Partnership | Method and apparatus for occluding vessels |
EP0662806B1 (en) | 1993-07-23 | 2001-04-11 | Cook Incorporated | A flexible stent having a pattern formed from a sheet of material |
JP2703510B2 (en) * | 1993-12-28 | 1998-01-26 | アドヴァンスド カーディオヴァスキュラー システムズ インコーポレーテッド | Expandable stent and method of manufacturing the same |
US5492530A (en) * | 1994-02-07 | 1996-02-20 | Cathco, Inc. | Method for accessing the coronary arteries from the radial or brachial artery in the arm |
US5389090A (en) * | 1994-02-07 | 1995-02-14 | Cathco, Inc. | Guiding catheter with straightening dilator |
DE69514690T3 (en) * | 1994-02-25 | 2006-09-14 | Fischell, Robert E. | stent |
US5643312A (en) * | 1994-02-25 | 1997-07-01 | Fischell Robert | Stent having a multiplicity of closed circular structures |
US5733303A (en) * | 1994-03-17 | 1998-03-31 | Medinol Ltd. | Flexible expandable stent |
US5449373A (en) * | 1994-03-17 | 1995-09-12 | Medinol Ltd. | Articulated stent |
WO1995031945A1 (en) * | 1994-05-19 | 1995-11-30 | Scimed Life Systems, Inc. | Improved tissue supporting devices |
US5636641A (en) * | 1994-07-25 | 1997-06-10 | Advanced Cardiovascular Systems, Inc. | High strength member for intracorporeal use |
EP0915501B1 (en) * | 1994-08-05 | 2003-02-26 | International Business Machines Corporation | Method of forming a damascene structure with WGe polishing stop |
US5743874A (en) * | 1994-08-29 | 1998-04-28 | Fischell; Robert E. | Integrated catheter for balloon angioplasty and stent delivery |
CA2163708C (en) * | 1994-12-07 | 2007-08-07 | Robert E. Fischell | Integrated dual-function catheter system for balloon angioplasty and stent delivery |
US5679278A (en) * | 1994-12-20 | 1997-10-21 | Cox; David H. | Microwaveable container for liquid oils |
US5591197A (en) * | 1995-03-14 | 1997-01-07 | Advanced Cardiovascular Systems, Inc. | Expandable stent forming projecting barbs and method for deploying |
US5605530A (en) * | 1995-03-23 | 1997-02-25 | Fischell; Robert E. | System for safe implantation of radioisotope stents |
US5730698A (en) * | 1995-05-09 | 1998-03-24 | Fischell; Robert E. | Balloon expandable temporary radioisotope stent system |
US5639274A (en) * | 1995-06-02 | 1997-06-17 | Fischell; Robert E. | Integrated catheter system for balloon angioplasty and stent delivery |
US5607442A (en) * | 1995-11-13 | 1997-03-04 | Isostent, Inc. | Stent with improved radiopacity and appearance characteristics |
US5840009A (en) * | 1995-12-05 | 1998-11-24 | Isostent, Inc. | Radioisotope stent with increased radiation field strength at the ends of the stent |
US5589295A (en) * | 1995-12-06 | 1996-12-31 | Derzon; Dora K. | Thin film polymeric gel electrolytes |
US5722984A (en) * | 1996-01-16 | 1998-03-03 | Iso Stent, Inc. | Antithrombogenic radioactive coating for an intravascular stent |
US6258116B1 (en) * | 1996-01-26 | 2001-07-10 | Cordis Corporation | Bifurcated axially flexible stent |
US5695516A (en) * | 1996-02-21 | 1997-12-09 | Iso Stent, Inc. | Longitudinally elongating balloon expandable stent |
US5669932A (en) * | 1996-05-29 | 1997-09-23 | Isostent, Inc. | Means for accurately positioning an expandable stent |
US5697971A (en) * | 1996-06-11 | 1997-12-16 | Fischell; Robert E. | Multi-cell stent with cells having differing characteristics |
US5749825A (en) * | 1996-09-18 | 1998-05-12 | Isostent, Inc. | Means method for treatment of stenosed arterial bifurcations |
US5792172A (en) * | 1996-12-23 | 1998-08-11 | Isostent, Inc. | Multifold balloon for stent deployment |
US5879282A (en) * | 1997-01-21 | 1999-03-09 | Cordis A Johnson And Johnson Company | Catheter having an expandable radioactive source |
US5759174A (en) * | 1997-01-29 | 1998-06-02 | Cathco, Inc. | Angioplasty balloon with an expandable external radiopaque marker band |
US5735859A (en) * | 1997-02-14 | 1998-04-07 | Cathco, Inc. | Distally attachable and releasable sheath for a stent delivery system |
AU6464298A (en) * | 1997-03-13 | 1998-09-29 | United States Surgical Corporation | Flexible tissue supporting device |
US5792144A (en) * | 1997-03-31 | 1998-08-11 | Cathco, Inc. | Stent delivery catheter system |
US5814472A (en) * | 1997-05-13 | 1998-09-29 | Wako Pure Chemical Industries, Ltd. | Measurement of LDL-cholesterol |
US5913895A (en) * | 1997-06-02 | 1999-06-22 | Isostent, Inc. | Intravascular stent with enhanced rigidity strut members |
US6179868B1 (en) * | 1998-03-27 | 2001-01-30 | Janet Burpee | Stent with reduced shortening |
US6013019A (en) * | 1998-04-06 | 2000-01-11 | Isostent, Inc. | Temporary radioisotope stent |
US6120533A (en) * | 1998-11-13 | 2000-09-19 | Isostent, Inc. | Stent delivery system for a radioisotope stent |
US6190403B1 (en) * | 1998-11-13 | 2001-02-20 | Cordis Corporation | Low profile radiopaque stent with increased longitudinal flexibility and radial rigidity |
US6146323A (en) * | 1999-05-14 | 2000-11-14 | Isostent, Inc. | Delivery catheter for a radioisotope stent |
US6270521B1 (en) * | 1999-05-21 | 2001-08-07 | Cordis Corporation | Stent delivery catheter system for primary stenting |
US6221043B1 (en) * | 1999-08-13 | 2001-04-24 | Isostent, Inc. | Stent delivery catheter with enhanced balloon shape |
US6936065B2 (en) * | 1999-11-22 | 2005-08-30 | Cordis Corporation | Stent delivery system having a fixed guidewire |
US6375660B1 (en) * | 1999-11-22 | 2002-04-23 | Cordis Corporation | Stent delivery system with a fixed guide wire |
US7011673B2 (en) * | 1999-11-22 | 2006-03-14 | Fischell Robert E | Stent delivery system with a fixed guide wire |
US6315708B1 (en) * | 2000-03-31 | 2001-11-13 | Cordis Corporation | Stent with self-expanding end sections |
US6540775B1 (en) * | 2000-06-30 | 2003-04-01 | Cordis Corporation | Ultraflexible open cell stent |
US6699278B2 (en) * | 2000-09-22 | 2004-03-02 | Cordis Corporation | Stent with optimal strength and radiopacity characteristics |
-
1995
- 1995-02-17 DE DE69514690T patent/DE69514690T3/en not_active Expired - Lifetime
- 1995-02-17 AT AT95301035T patent/ATE166782T1/en active
- 1995-02-17 ES ES95301035T patent/ES2116680T3/en not_active Expired - Lifetime
- 1995-02-17 ES ES97202628T patent/ES2141576T5/en not_active Expired - Lifetime
- 1995-02-17 PT PT97202628T patent/PT821920E/en unknown
- 1995-02-17 SI SI9530370T patent/SI0821920T2/en unknown
- 1995-02-17 AT AT97202628T patent/ATE188863T1/en active
- 1995-02-17 SI SI9530130T patent/SI0669114T1/en unknown
- 1995-02-17 DE DE69502746T patent/DE69502746T2/en not_active Expired - Lifetime
- 1995-02-20 CA CA002363876A patent/CA2363876C/en not_active Expired - Lifetime
- 1995-02-20 CA CA002365162A patent/CA2365162C/en not_active Expired - Lifetime
- 1995-08-29 TW TW084108981A patent/TW309436B/zh not_active IP Right Cessation
-
1997
- 1997-05-28 US US08/864,221 patent/US5879370A/en not_active Expired - Fee Related
-
1999
- 1999-03-05 US US09/263,518 patent/US6086604A/en not_active Expired - Lifetime
-
2000
- 2000-06-16 US US09/596,074 patent/US6547817B1/en not_active Expired - Fee Related
-
2001
- 2001-10-26 US US09/983,837 patent/US20020052646A1/en not_active Abandoned
-
2003
- 2003-01-16 US US10/345,531 patent/US6716240B2/en not_active Expired - Fee Related
- 2003-09-15 US US10/662,792 patent/US20040230294A1/en not_active Abandoned
-
2005
- 2005-07-12 US US11/179,424 patent/US20050246011A1/en not_active Abandoned
-
2007
- 2007-05-18 US US11/804,710 patent/US8157856B2/en not_active Expired - Fee Related
-
2008
- 2008-09-30 US US12/286,558 patent/US8747452B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8157856B2 (en) | 2012-04-17 |
PT821920E (en) | 2000-04-28 |
US20050246011A1 (en) | 2005-11-03 |
SI0821920T2 (en) | 2006-08-31 |
US20030114868A1 (en) | 2003-06-19 |
ES2141576T5 (en) | 2006-08-01 |
TW309436B (en) | 1997-07-01 |
DE69502746D1 (en) | 1998-07-09 |
CA2363876C (en) | 2004-04-13 |
ES2141576T3 (en) | 2000-03-16 |
US5879370A (en) | 1999-03-09 |
US6547817B1 (en) | 2003-04-15 |
US20020052646A1 (en) | 2002-05-02 |
US20040230294A1 (en) | 2004-11-18 |
DE69514690T2 (en) | 2000-09-07 |
US6086604A (en) | 2000-07-11 |
CA2365162A1 (en) | 1995-08-26 |
DE69514690D1 (en) | 2000-02-24 |
ATE188863T1 (en) | 2000-02-15 |
ATE166782T1 (en) | 1998-06-15 |
ES2116680T3 (en) | 1998-07-16 |
DE69502746T2 (en) | 1998-10-01 |
US20090105807A1 (en) | 2009-04-23 |
CA2363876A1 (en) | 1995-08-26 |
SI0821920T1 (en) | 2000-04-30 |
SI0669114T1 (en) | 1999-02-28 |
US8747452B2 (en) | 2014-06-10 |
US20070255384A1 (en) | 2007-11-01 |
DE69514690T3 (en) | 2006-09-14 |
US6716240B2 (en) | 2004-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2365162C (en) | Stent having a multiplicity of undulating longitudinals | |
EP0821920B2 (en) | Stent | |
EP1488763B1 (en) | Stent with attached sleeve marker | |
US5591223A (en) | Re-expandable endoprosthesis | |
EP1093771B1 (en) | Flexible medical stent | |
US6402777B1 (en) | Radiopaque stent markers | |
ES2210734T3 (en) | HELICOIDAL MESH ENDOPROTESIS. | |
US6036725A (en) | Expandable endovascular support device | |
US5824052A (en) | Coiled sheet stent having helical articulation and methods of use | |
US5899934A (en) | Dual stent | |
WO1999048440A1 (en) | Helical mesh endoprosthesis and methods of use | |
AU716753B2 (en) | Stent having a multiplicity of closed circular structures |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20150220 |