WO1998052497A2 - Variable expansion force stent - Google Patents
Variable expansion force stent Download PDFInfo
- Publication number
- WO1998052497A2 WO1998052497A2 PCT/US1998/010415 US9810415W WO9852497A2 WO 1998052497 A2 WO1998052497 A2 WO 1998052497A2 US 9810415 W US9810415 W US 9810415W WO 9852497 A2 WO9852497 A2 WO 9852497A2
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- WIPO (PCT)
- Prior art keywords
- stent
- region
- force
- length
- vessel
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- 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
- A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
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- 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
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- 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
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Definitions
- the invention relates generally to medical devices. More specifically, the invention relates to stents for holding vessels such as arteries open to flow.
- Stents are insertable medical devices used to maintain openings for fluid flow in areas that might otherwise close, hindering flow. Stents are used to prevent restenosis after Percutaneous Transluminal Catheter Angioplasty (PTCA), presenting outward radial force against a potentially rebounding vessel wall after balloon widening. Stents are also used to hold open inflamed vessel walls that would otherwise be swollen shut, precluding flow. Stents can also be used to hold open surgically made holes for drainage.
- PTCA Percutaneous Transluminal Catheter Angioplasty
- Stents are often tubular devices for insertion into tubular vessel regions.
- Balloon expandable stents require mounting over a balloon, positioning, and inflation of the balloon to expand the stent radially outward.
- Self-expanding stents expand into place when unconstrained, without requiring assistance from a balloon.
- a self-expanding stent is biased so as to expand upon release from the delivery catheter.
- a vessel having a stenosis may be modeled as an inwardly protruding arcuate addition of hardened material to a cylindrical vessel wall, where the stenosed region presents a somewhat rigid body attached along, and to, the elastic wall.
- the stenosis presents resistance to any expansion of the vessel in the region bridged by the stenosis.
- Stenoses vary in composition, for example, in the degree of calcification, and therefore vary in properties as well.
- the arcuate geometry of many stenoses present a variation in resistance along the vessel axis to stent outward radial force.
- stenosed vessel resistance is often greatest toward the middle, lessening toward the ends, with a rapid decrease at the start of healthy vessel tissue.
- a conventional self- expanding stent optimally has a length greater than the length of the stenosed region to be kept open.
- Current stents present a substantially uniform outward radial force along their length.
- stents do not vary outward radial force to match stenosis geometries or resistances.
- a constant force stent with sufficient force to maintain an open channel within a stenosis, has greater force than necessary in the healthy vessel portion lying past the stenosis ends.
- the stent ends may thus flare outward, protruding into, and possibly irritating non-stenosed tissue.
- Stenosis can occur in vessel regions having asymmetric geometry lying on either side of the stenosis.
- One example of this is the ostium of a coronary artery, having a wide opening toward the aorta, converging into a narrower coronary artery.
- a conventional stent placed in the ostium would provide substantially uniform outward force over a non-uniform vessel diameter. If this force is properly matched for the narrower vessel opening, it is likely less than optimal for the wider region.
- What would be desirable, and has not heretofore been provided is a stent capable of providing sufficient force to keep a vessel open within a rebounding stenosis, while providing only necessary force against healthy, non-stenosed vessel regions.
- What also has not been provided is a stent providing necessary, but only necessary force along a stenosis in a vessel region having non-uniform vessel diameter on either side of the stenosis.
- the present invention includes a self-expanding stent having a tubular shaped structure, where the outward radial force varies with longitudinal position along the length of the stent.
- the force is greater in the center and lesser at both ends.
- Such a stent is suitable for placement in a stenosed vessel region.
- the force is less at one end, greater at the middle, and greater still at the opposite end.
- Such a stent is suitable for placement in a stenosed and narrowing vessel region, including placement near a coronary ostium.
- One stent has a structure formed of shape memory material.
- the stent is constructed of a Nickel-Titanium alloy.
- the stent structure in a preferred embodiment includes a helix formed of a wire having the helix turns spaced more closely together toward the center than at the ends.
- the helix is biased to expand in outer diameter and contract in length after having been stretched axially and released.
- the helix turns increase in spacing from one end to the opposite end.
- interwoven or intertwined wires form the tubular structure, with the number of wires being greater per unit length toward the center than at the ends.
- the interwoven wires can be metallic wire.
- the wires can resemble spirals or helices after having been wound to the tubular stent shape.
- the number of wires increase from one end to the opposite end.
- One stent achieves a variation in radial force by including in the stent structure elements which intersect at junctions having more material in regions requiring more radial force and less material in regions requiring less radial force.
- the amount of junction material can be varied by varying the size of the junction area.
- the stent structure is formed by laser cutting a Nitinol tube, leaving a greater strut dimension in regions requiring greater outward radial force.
- the stent structure includes a series of wire springs having a "zig-zag" shape which each radially encircle a tubular section.
- the springs are interconnected longitudinally.
- the required outward radial force can be varied by varying the stent wall thickness in this and other embodiments.
- stent regions requiring greater radial force have thicker walls than regions requiring less force.
- Stents made in accordance with the present invention can provide an outward radial force more closely matching the local force requirements.
- the stents provide greater force only where required in a stenosis center, without providing too much force in the region of healthy tissue.
- the stents provide an expanded geometry more closely tailored to the requirements of a narrowing vessel region, providing greater expansion in wider regions and less expansion in narrower regions.
- Figure 1 is a fragmentary longitudinal cross-sectional view of a stenosed vessel region
- Figure 2 is a fragmentary cross-sectional view of a stenosed vessel region with a conventional stent in place;
- Figure 3 is a plot of force versus length for the conventional stent of Figure 2;
- Figure 4 is a fragmentary longitudinal cross-sectional view of a stenosis in a narrowing vessel region
- Figure 5 is a plot of force versus length of an improved stent for placement in Figure 1 ;
- Figure 6 is a plot of force versus length of an improved stent for placement in Figure 4.
- Figure 7 is a side view of a self expanding stent having more wires per unit length at longitudinal center;
- Figure 8 is a side view of a self-expanding stent coil more closely spaced toward center;
- Figure 9 is a side view of a self-expanding stent having thicker elements toward longitudinal center;
- Figure 10 is an end view of the stent of Figure 9;
- Figure 11 is a wafer view of the stent of Figure 9;
- Figure 12 is a longitudinal profile of an alternate embodiment of the invention in which the diameter is non-uniform along the stent length;
- Figure 13 is an enlarged view of element junctions in a self-expanding stent
- Figure 14 is an enlarged view of an element junction in the self-expanding stent of Figure 13;
- Figure 15 is an enlarged view of an element junction of a self-expanding stent
- Figure 16 is a side view of a self-expanding stent having a greater density of elements toward one end; and Figure 17 is a side view of a self-expanding stent having more closely spaced elements toward one end.
- Figure 1 illustrates a stenosis 30, forming narrowed region 34, in a vessel 31 within vessel wall 32. Adjacent to stenosis 30 is a healthy vessel region 36.
- Figure 2 illustrates a conventional stent 40 in place across stenosis 30, out of the blood flow channel as indicated at 44.
- Stent 40 includes a stent end 44, shown angling into healthy vessel area 36 at 38.
- Stent 40 as shown has sufficient force to keep vessel 30 open against the rebound force of stenosis 30, and has more force than required at stent end 42, resulting in stent 40 angling into the healthy vessel wall at 38.
- Figure 3 illustrates an idealized plot 50 of outward radial force, F, against stent length, L, for a conventional stent such as that illustrated in Figure 2. As shown, the force is substantially constant over the length.
- Figure 4 illustrates a narrowing vessel 52 having a wide region 56, a narrowed region 58, and a stenosis 54.
- the narrowing vessel of Figure 4 illustrates the geometry as found in an ostium such as the left coronary ostium, where blood from the aorta flows into the left coronary artery.
- a stent with sufficient force to hold open wide region 56 would have greater force than necessary to hold open narrowed region 58.
- a stent having the outward radial force axial distribution of Figure 3 would have insufficient force at wide region 56 and greater than required force at narrowed region 58.
- Figure 5 illustrates a plot 60 of outward radial force F along stent length L for one stent embodying the present invention.
- the stent has greater force in a middle region 62 than at end regions 64 and 65.
- a stent having the force curve of Figure 5 is suitable for bridging a stenosis as illustrated in Figure 1, while preventing the stent from angling into healthy tissue as show in Figure 2 at 38.
- Figure 6 illustrates a plot 66 of outward radial force F along stent length L for another stent embodying the present invention.
- the stent has a greater force in end region 68 than at the opposite end region 70.
- a stent having the force curve of Figure 6 is suitable for bridging the stenosis as illustrated in Figure 4, having sufficient force to hold open vessel wide region 56 and less force in vessel narrow region 58, where less is required.
- FIG 7 illustrates a preferred embodiment of the invention producing a force distribution as illustrated in Figure 5.
- Self-expanding stent 80 includes numerous resilient wires 82, interwoven as indicated at 88.
- stent 80 is drawn longitudinally which increases the length and decreases the diameter.
- Stent 80 is inserted into the distal end of the delivery catheter, advanced to a stenosis to be crossed, and forced out of the delivery catheter distal end.
- stent 80 Upon exiting the tube, stent 80 expands radially and shortens axially, pushing against the stenosis and vessel walls.
- Stent 80 includes a middle region 84 and end regions 86 and 87.
- Stent 80 wires 82 are biased to resume the unconstrained state, which is wider and shorter than the constrained stent shape in the tube.
- the amount of outward radial force exerted per unit length of stent is greater in regions having a greater density of wires per unit length.
- stent 80 has a greater number of wires per unit length in center region 84 than in end regions 86 and 87.
- stent 80 has a greater outward radial force in center region 84 than in end regions 86 and 87.
- the greater number of wires per unit length in one embodiment is the result of forming wires, which run the entire stent length, more closely together toward stent center. In another embodiment, the greater number of wires is the result of adding more wires which only run in the center region of the stent.
- Figure 8 illustrates another embodiment of the invention in self-expanding stent 90, having a middle region 94 and end regions 96 and 97.
- Stent 90 is formed of a single, spirally wound wire 92, forming a helix 98.
- a preferred embodiment utilizes Nitinol material for wire 92.
- Helix 98 has a distance between helix turns as indicated at 99. Distance 99 varies with longitudinal position, being greater in middle region 94 and less in end regions 96 and 97.
- Wire 92 is formed as a spring, biased to resume its unconstrained shape when released, after having been stretched axially.
- stent 90 has a greater outward radial force in center region 94 than in end regions 96 and 97.
- FIG 9 illustrates still another embodiment of the invention in stent 100, having a middle region 104 and end regions 106 and 107.
- Stent 100 has a tubular shape formed of a wire 102, which is shaped into several springs 108 having a zig-zag pattern, each spring 108 radially encircling a segment of stent 100, as indicated in Figure 10.
- springs 108 are longitudinally interconnected with segments 109.
- Springs 108 and segments 109 in one embodiment are formed using standard wire bending jigs and techniques, including brazing segments 109 to springs 108.
- a preferred material for constructing stent 100 is Nitinol.
- springs and segments are formed by laser cutting a continuous-walled metallic tube, leaving only springs 108 and segments 109.
- Figure 1 1 illustrates a wafer section in elevation taken along 11-11 in Figure 10.
- Wire elements 102 are illustrated in cross section in middle region 104 and end region 107.
- the element thickness in width and/or length in end region 107, indicated at 101 is less than the element thickness in middle region 104, indicated at 103.
- Middle elements having thickness 103 can provide greater outward radial force than end elements having relatively lesser thickness 101.
- the radial expansive force can also be varied by varying the frequency and/or amplitude of the zig-zag pattern.
- FIG. 12 illustrates, in highly diagrammatic form, a phantom line profile of another embodiment of the invention.
- a profile of stent 1 10 is shown in phantom, having a middle region 1 14 and end regions 1 16 and 1 17.
- Stent 110 is formed, at least in part, from a shape memory material.
- stent 1 10 is formed of Nitinol.
- Shape memory materials can be annealed into a first shape, heated, thereby setting the material structure, cooled, and deformed into a second shape. The first shape has an average outside diameter greater than the second. The material returns to the first, remembered shape at a phase transition temperature specific to the material composition.
- Figure 12 illustrates the stent shape to be remembered upon reaching body temperature.
- Stent 110 has a middle outside diameter 113 and end outside diameter 111, where the middle outside diameter is greater than the end outside diameter.
- Stent 110 can be compressed to fit within the delivery catheter, the delivery catheter advanced to a stenosis, and the stent pushed out the delivery catheter distal end. Stent 110 then begins resuming the remember shape of Figure 12.
- the stenosed region typically has the arcuate shape of Figure 1.
- stent 110 can provide greater force in applying middle stent region 114 against middle vessel walls than in applying end stent regions 117 and 116 against the end vessel walls.
- Figure 13 illustrates another embodiment of the invention.
- Figure 13 illustrates a tubular stent structure formed of elements meeting at junctions, where the junction size can be varied over the length of the stent.
- Stent 120 is shown having a structure 122 including elements 124. Elements 124 intersect each other at junction 130 as illustrated in detail in Figure 14.
- Figure 15 illustrates a junction having a greater amount of material than the junction in Figure 14.
- junction 132 has a greater surface area than junction 130. Junctions having more material have greater capacity to provide radial outward force than junctions having less material.
- One embodiment of the invention has elements meeting or intersecting at junctions, where the junctions have more material in the tube middle region and less material in the tube end regions.
- the junctions are formed by laser cutting a Nitinol tube material.
- the tube can be compressed to fit within the delivery catheter, advanced to the stenosis, and pushed distally from the delivery catheter distal end. As the tube regains its uncompressed shape, areas having a greater amount of material at the junctions are able to exert greater outward radial force.
- FIG 16 illustrates an embodiment of the invention suitable for use across stenoses in narrowing vessel regions, such as the left coronary ostium.
- Stent 140 has a first end region 147 and a second, opposite end region 146.
- Stent 140 is similar to stent 80 in Figure 7.
- the stent tube includes wires 142 which are wound around the stent and can be interwoven.
- wires 142 have a greater density per stent unit length at second end region 146 than in first end region 147. This enables second end region 146 to provide greater outward radial force than first end region 147.
- first end region 147 can be suitably matched for narrow vessel region 58, with second end region 146 matched for wide vessel region 56.
- FIG 17 illustrates another embodiment of the invention suitable for use across a stenosed, narrowing vessel region.
- Stent 150 extends from a first end region 157 to a second end region 156.
- Stent 150 is similar in construction to stent 90 in Figure 8, including wires 152 formed into a helix or spiral 158. Helix turns are spaced a distance 159 apart. As illustrated in Figure 17, helix turns are spaced further apart at first end region 157 than at second end region 156. This spacing allows stent 150 to provide greater outward radial force at second end region 156 than at first end region 157.
- Figures 16 and 17 illustrate two embodiments having greater radial force at one end than the other. This property can be produced using other structures. Another embodiment having this property is similar to a longitudinal half of Figure 9, having a greater element thickness at one end than the other. Yet another embodiment is similar to a longitudinal half of Figure 12, having a greater outside diameter at one end than the other.
- Stents providing greater outward radial force at one end than another, as in the embodiments of Figures 16 and 17, allow a stent to be placed across a stenosis in a narrowing vessel region as illustrated in Figure 4.
- the stent end having a greater radial force can expand into the wider vessel region, while the stent end having lesser radial force can expand to the narrower vessel region wall, but with less force than if required to expand as far as the stent end in the wider vessel region. This can lessen unneeded force on the vessel wall while still holding the vessel open and keeping the stent substantially out of the vessel flow path.
- the present invention provides a stent having a radial force varied along stent length.
- the stent has been described, in use, as bridging stenosed vessel regions for illustrative purposes. Another use is maintaining open channels through inflamed or otherwise restricted body conduits. Stents used for other purposes are explicitly within the scope of the invention.
- self-expanding stents have been shown herein to illustrate the present invention, so called balloon expandable stents can also include the variable expansion force feature as described herein. In the case of balloon expandable stents, however, these forces in general will be less than are necessary to expand the stent and thus the balloon will be used as known to those skilled in the art to complete the expansion of the stent.
- balloon expandable stents may be advantageously deployed in bending areas of a vessels such as at an ostium where a stent having thus rigid or heavy members is desirable to enhance the flexibility of the stent. It should be understood therefore, that balloon expandable stents are also within the scope of the present invention.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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AT98923626T ATE304329T1 (en) | 1997-05-22 | 1998-05-21 | STENT WITH VARIABLE SPREADING FORCE |
EP98923626A EP1001718B1 (en) | 1997-05-22 | 1998-05-21 | Variable expansion force stent |
DE69831575T DE69831575T2 (en) | 1997-05-22 | 1998-05-21 | STENT WITH VARIABLE SPREAD POWER |
CA002288044A CA2288044C (en) | 1997-05-22 | 1998-05-21 | Variable expansion force stent |
JP55064198A JP2002500533A (en) | 1997-05-22 | 1998-05-21 | Stent with variable expansion force |
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US861,798 | 1997-05-22 | ||
US08/861,798 US5836966A (en) | 1997-05-22 | 1997-05-22 | Variable expansion force stent |
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WO1998052497A2 true WO1998052497A2 (en) | 1998-11-26 |
WO1998052497A3 WO1998052497A3 (en) | 1999-02-25 |
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US (5) | US5836966A (en) |
EP (2) | EP1598032B1 (en) |
JP (2) | JP2002500533A (en) |
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CA (1) | CA2288044C (en) |
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WO (1) | WO1998052497A2 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6146403A (en) * | 1997-05-22 | 2000-11-14 | Scimed Life Systems, Inc. | Variable expansion force stent |
US6210429B1 (en) | 1996-11-04 | 2001-04-03 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
JP2001309984A (en) * | 2000-05-01 | 2001-11-06 | Univ Tsukuba | Stent for maintaining openability of stenosis portion in lumen |
US6325826B1 (en) | 1998-01-14 | 2001-12-04 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
US6599316B2 (en) | 1996-11-04 | 2003-07-29 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
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US8282678B2 (en) | 2002-11-13 | 2012-10-09 | Allium Medical Solutions Ltd. | Endoluminal lining |
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US9629736B2 (en) | 2006-10-22 | 2017-04-25 | Idev Technologies, Inc. | Secured strand end devices |
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US10022255B2 (en) | 2016-04-11 | 2018-07-17 | Idev Technologies, Inc. | Stent delivery system having anisotropic sheath |
Families Citing this family (232)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7204848B1 (en) | 1995-03-01 | 2007-04-17 | Boston Scientific Scimed, Inc. | Longitudinally flexible expandable stent |
US6896696B2 (en) | 1998-11-20 | 2005-05-24 | Scimed Life Systems, Inc. | Flexible and expandable stent |
EP1477133B9 (en) | 1996-03-05 | 2007-11-21 | Evysio Medical Devices Ulc | Expandable stent |
CA2192520A1 (en) | 1996-03-05 | 1997-09-05 | Ian M. Penn | Expandable stent and method for delivery of same |
US6796997B1 (en) | 1996-03-05 | 2004-09-28 | Evysio Medical Devices Ulc | Expandable stent |
US6432127B1 (en) | 1996-10-11 | 2002-08-13 | Transvascular, Inc. | Devices for forming and/or maintaining connections between adjacent anatomical conduits |
US6692483B2 (en) | 1996-11-04 | 2004-02-17 | Advanced Stent Technologies, Inc. | Catheter with attached flexible side sheath |
US8211167B2 (en) | 1999-12-06 | 2012-07-03 | Boston Scientific Scimed, Inc. | Method of using a catheter with attached flexible side sheath |
US7591846B2 (en) | 1996-11-04 | 2009-09-22 | Boston Scientific Scimed, Inc. | Methods for deploying stents in bifurcations |
US6835203B1 (en) | 1996-11-04 | 2004-12-28 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
US6682536B2 (en) | 2000-03-22 | 2004-01-27 | Advanced Stent Technologies, Inc. | Guidewire introducer sheath |
US20040267350A1 (en) * | 2002-10-30 | 2004-12-30 | Roubin Gary S. | Non-foreshortening intraluminal prosthesis |
US5827321A (en) * | 1997-02-07 | 1998-10-27 | Cornerstone Devices, Inc. | Non-Foreshortening intraluminal prosthesis |
US6200335B1 (en) * | 1997-03-31 | 2001-03-13 | Kabushikikaisha Igaki Iryo Sekkei | Stent for vessel |
CA2241558A1 (en) | 1997-06-24 | 1998-12-24 | Advanced Cardiovascular Systems, Inc. | Stent with reinforced struts and bimodal deployment |
US20040130599A1 (en) * | 1997-07-15 | 2004-07-08 | Silverbrook Research Pty Ltd | Ink jet printhead with amorphous ceramic chamber |
KR20010082497A (en) * | 1997-09-24 | 2001-08-30 | 메드 인스티튜트, 인코포레이티드 | Radially expandable stent |
EP2314256A1 (en) * | 1997-11-25 | 2011-04-27 | TriVascular, Inc. | Layered endovascular graft |
US6395019B2 (en) | 1998-02-09 | 2002-05-28 | Trivascular, Inc. | Endovascular graft |
US5931866A (en) * | 1998-02-24 | 1999-08-03 | Frantzen; John J. | Radially expandable stent featuring accordion stops |
DK174814B1 (en) * | 1998-02-25 | 2003-12-01 | Cook William Europ | stent device |
JP4583597B2 (en) | 1998-05-05 | 2010-11-17 | ボストン サイエンティフィック リミテッド | Smooth end stent |
DE19839646A1 (en) | 1998-08-31 | 2000-03-09 | Jomed Implantate Gmbh | Stent |
US7815763B2 (en) | 2001-09-28 | 2010-10-19 | Abbott Laboratories Vascular Enterprises Limited | Porous membranes for medical implants and methods of manufacture |
US7887578B2 (en) | 1998-09-05 | 2011-02-15 | Abbott Laboratories Vascular Enterprises Limited | Stent having an expandable web structure |
US6755856B2 (en) | 1998-09-05 | 2004-06-29 | Abbott Laboratories Vascular Enterprises Limited | Methods and apparatus for stenting comprising enhanced embolic protection, coupled with improved protection against restenosis and thrombus formation |
US20020019660A1 (en) * | 1998-09-05 | 2002-02-14 | Marc Gianotti | Methods and apparatus for a curved stent |
US6682554B2 (en) | 1998-09-05 | 2004-01-27 | Jomed Gmbh | Methods and apparatus for a stent having an expandable web structure |
US8382821B2 (en) | 1998-12-03 | 2013-02-26 | Medinol Ltd. | Helical hybrid stent |
SG75982A1 (en) * | 1998-12-03 | 2000-10-24 | Medinol Ltd | Controlled detachment stents |
US7655030B2 (en) | 2003-07-18 | 2010-02-02 | Boston Scientific Scimed, Inc. | Catheter balloon systems and methods |
DE60040206D1 (en) * | 1999-02-01 | 2008-10-23 | Univ Texas | WOVEN, TWO AND THREE-WAY STENTS AND MANUFACTURING METHOD THEREFOR |
CA2359507C (en) | 1999-02-26 | 2005-03-29 | Vascular Architects, Inc. | Catheter assembly with endoluminal prosthesis and method for placing |
US6248122B1 (en) * | 1999-02-26 | 2001-06-19 | Vascular Architects, Inc. | Catheter with controlled release endoluminal prosthesis |
US6325825B1 (en) * | 1999-04-08 | 2001-12-04 | Cordis Corporation | Stent with variable wall thickness |
JP2002541911A (en) | 1999-04-15 | 2002-12-10 | スマート セラピューティクス, インコーポレイテッド | Endovascular stent and method for treating neurovascular trauma |
US6899730B1 (en) | 1999-04-15 | 2005-05-31 | Scimed Life Systems, Inc. | Catheter-stent device |
US6273911B1 (en) | 1999-04-22 | 2001-08-14 | Advanced Cardiovascular Systems, Inc. | Variable strength stent |
US6270521B1 (en) | 1999-05-21 | 2001-08-07 | Cordis Corporation | Stent delivery catheter system for primary stenting |
US6540774B1 (en) | 1999-08-31 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Stent design with end rings having enhanced strength and radiopacity |
US6689156B1 (en) | 1999-09-23 | 2004-02-10 | Advanced Stent Technologies, Inc. | Stent range transducers and methods of use |
US20010047200A1 (en) * | 1999-10-13 | 2001-11-29 | Raymond Sun | Non-foreshortening intraluminal prosthesis |
US6610087B1 (en) | 1999-11-16 | 2003-08-26 | Scimed Life Systems, Inc. | Endoluminal stent having a matched stiffness region and/or a stiffness gradient and methods for providing stent kink resistance |
US6585758B1 (en) | 1999-11-16 | 2003-07-01 | Scimed Life Systems, Inc. | Multi-section filamentary endoluminal stent |
US6423090B1 (en) | 2000-02-11 | 2002-07-23 | Advanced Cardiovascular Systems, Inc. | Stent pattern with staged expansion |
WO2001089421A2 (en) * | 2000-05-22 | 2001-11-29 | Orbus Medical Technologies Inc. | Self-expanding stent |
US6652576B1 (en) | 2000-06-07 | 2003-11-25 | Advanced Cardiovascular Systems, Inc. | Variable stiffness stent |
US7632303B1 (en) | 2000-06-07 | 2009-12-15 | Advanced Cardiovascular Systems, Inc. | Variable stiffness medical devices |
US6652579B1 (en) | 2000-06-22 | 2003-11-25 | Advanced Cardiovascular Systems, Inc. | Radiopaque stent |
US6805704B1 (en) | 2000-06-26 | 2004-10-19 | C. R. Bard, Inc. | Intraluminal stents |
AU2001286731A1 (en) * | 2000-08-25 | 2002-03-04 | Kensey Nash Corporation | Covered stents, systems for deploying covered stents |
US8070792B2 (en) | 2000-09-22 | 2011-12-06 | Boston Scientific Scimed, Inc. | Stent |
US6695833B1 (en) | 2000-09-27 | 2004-02-24 | Nellix, Inc. | Vascular stent-graft apparatus and forming method |
US6881217B2 (en) * | 2000-10-13 | 2005-04-19 | Henry M. Israel | Stent assembly |
US6547818B1 (en) * | 2000-10-20 | 2003-04-15 | Endotex Interventional Systems, Inc. | Selectively thinned coiled-sheet stents and methods for making them |
US6602272B2 (en) | 2000-11-02 | 2003-08-05 | Advanced Cardiovascular Systems, Inc. | Devices configured from heat shaped, strain hardened nickel-titanium |
US7976648B1 (en) | 2000-11-02 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Heat treatment for cold worked nitinol to impart a shape setting capability without eventually developing stress-induced martensite |
US8192484B2 (en) * | 2000-12-12 | 2012-06-05 | Cardiatis S.A. | Stent for blood flow improvement |
US6855161B2 (en) | 2000-12-27 | 2005-02-15 | Advanced Cardiovascular Systems, Inc. | Radiopaque nitinol alloys for medical devices |
DE50210591D1 (en) | 2001-02-16 | 2007-09-13 | Abbott Lab Vascular Entpr Ltd | IMPLANTS WITH FK506 FOR RESTENOSIS TREATMENT AND PROPHYLAXIS |
DE10118944B4 (en) | 2001-04-18 | 2013-01-31 | Merit Medical Systems, Inc. | Removable, essentially cylindrical implants |
US8617231B2 (en) | 2001-05-18 | 2013-12-31 | Boston Scientific Scimed, Inc. | Dual guidewire exchange catheter system |
US6605110B2 (en) | 2001-06-29 | 2003-08-12 | Advanced Cardiovascular Systems, Inc. | Stent with enhanced bendability and flexibility |
US7547321B2 (en) | 2001-07-26 | 2009-06-16 | Alveolus Inc. | Removable stent and method of using the same |
US6796999B2 (en) | 2001-09-06 | 2004-09-28 | Medinol Ltd. | Self articulating stent |
EP1917931A3 (en) | 2001-12-03 | 2013-02-27 | Intek Technology LLC | Multi-segment modular stent and methods for manufacturing stents |
US20030176914A1 (en) * | 2003-01-21 | 2003-09-18 | Rabkin Dmitry J. | Multi-segment modular stent and methods for manufacturing stents |
US20030135265A1 (en) * | 2002-01-04 | 2003-07-17 | Stinson Jonathan S. | Prostheses implantable in enteral vessels |
US20040068314A1 (en) * | 2002-01-16 | 2004-04-08 | Jones Donald K. | Detachable self -expanding aneurysm cover device |
US7637935B2 (en) * | 2002-05-06 | 2009-12-29 | Abbott Laboratories | Endoprosthesis for controlled contraction and expansion |
WO2003094798A1 (en) * | 2002-05-08 | 2003-11-20 | Abbott Laboratories | Endoprosthesis having foot extensions |
US6656220B1 (en) | 2002-06-17 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Intravascular stent |
AU2003250913A1 (en) * | 2002-07-08 | 2004-01-23 | Abbott Laboratories Vascular Enterprises Limited | Drug eluting stent and methods of manufacture |
AU2003272682C1 (en) | 2002-09-20 | 2009-07-16 | Nellix, Inc. | Stent-graft with positioning anchor |
US20040093056A1 (en) | 2002-10-26 | 2004-05-13 | Johnson Lianw M. | Medical appliance delivery apparatus and method of use |
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 |
US7875068B2 (en) | 2002-11-05 | 2011-01-25 | Merit Medical Systems, Inc. | Removable biliary stent |
US7959671B2 (en) | 2002-11-05 | 2011-06-14 | Merit Medical Systems, Inc. | Differential covering and coating methods |
US20040102831A1 (en) * | 2002-11-22 | 2004-05-27 | Murray Robert J. | Stent having tapered edges |
US8105373B2 (en) * | 2002-12-16 | 2012-01-31 | Boston Scientific Scimed, Inc. | Flexible stent with improved axial strength |
US7316710B1 (en) * | 2002-12-30 | 2008-01-08 | Advanced Cardiovascular Systems, Inc. | Flexible stent |
US7381222B2 (en) | 2002-12-30 | 2008-06-03 | Quiescence Medical, Inc. | Stent for maintaining patency of a body region |
US7647931B2 (en) | 2002-12-30 | 2010-01-19 | Quiescence Medical, Inc. | Stent for maintaining patency of a body region |
US7992566B2 (en) | 2002-12-30 | 2011-08-09 | Quiescence Medical, Inc. | Apparatus and methods for treating sleep apnea |
US6849084B2 (en) * | 2002-12-31 | 2005-02-01 | Intek Technology L.L.C. | Stent delivery system |
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 |
US7942892B2 (en) | 2003-05-01 | 2011-05-17 | Abbott Cardiovascular Systems Inc. | Radiopaque nitinol embolic protection frame |
US7625398B2 (en) * | 2003-05-06 | 2009-12-01 | Abbott Laboratories | Endoprosthesis having foot extensions |
US7625401B2 (en) * | 2003-05-06 | 2009-12-01 | Abbott Laboratories | Endoprosthesis having foot extensions |
US20040236414A1 (en) * | 2003-05-23 | 2004-11-25 | Brar Balbir S. | Devices and methods for treatment of stenotic regions |
US7226473B2 (en) * | 2003-05-23 | 2007-06-05 | Brar Balbir S | Treatment of stenotic regions |
US7112216B2 (en) * | 2003-05-28 | 2006-09-26 | Boston Scientific Scimed, Inc. | Stent with tapered flexibility |
US7247986B2 (en) * | 2003-06-10 | 2007-07-24 | Samsung Sdi. Co., Ltd. | Organic electro luminescent display and method for fabricating the same |
US20040260384A1 (en) * | 2003-06-17 | 2004-12-23 | Medtronic Ave | Superelastic coiled stent |
US7105015B2 (en) * | 2003-06-17 | 2006-09-12 | Medtronic Vascular, Inc. | Method and system for treating an ostium of a side-branch vessel |
US9039755B2 (en) | 2003-06-27 | 2015-05-26 | Medinol Ltd. | Helical hybrid stent |
US9155639B2 (en) | 2009-04-22 | 2015-10-13 | Medinol Ltd. | Helical hybrid stent |
DE10335649A1 (en) * | 2003-07-30 | 2005-02-24 | Jotec Gmbh | Braid stent for implantation in a blood vessel |
US7628806B2 (en) * | 2003-08-20 | 2009-12-08 | Boston Scientific Scimed, Inc. | Stent with improved resistance to migration |
US8298280B2 (en) | 2003-08-21 | 2012-10-30 | Boston Scientific Scimed, Inc. | Stent with protruding branch portion for bifurcated vessels |
US7344557B2 (en) | 2003-11-12 | 2008-03-18 | Advanced Stent Technologies, Inc. | Catheter balloon systems and methods |
US7763011B2 (en) * | 2003-12-22 | 2010-07-27 | Boston Scientific Scimed, Inc. | Variable density braid stent |
US7258697B1 (en) | 2003-12-22 | 2007-08-21 | Advanced Cardiovascular Systems, Inc. | Stent with anchors to prevent vulnerable plaque rupture during deployment |
US7402170B2 (en) * | 2003-12-30 | 2008-07-22 | Scimed Life Systems, Inc. | Crimp and weld wire connection |
US20050185061A1 (en) * | 2004-02-23 | 2005-08-25 | Andy Baker | Self photographing camera system |
WO2005094283A2 (en) | 2004-03-25 | 2005-10-13 | Hauser David L | Vascular filter device |
US20050222672A1 (en) * | 2004-04-01 | 2005-10-06 | Cappella, Inc. | Ostial stent |
US8048145B2 (en) | 2004-07-22 | 2011-11-01 | Endologix, Inc. | Graft systems having filling structures supported by scaffolds and methods for their use |
US20070292478A1 (en) | 2004-08-30 | 2007-12-20 | Popowski Youri | Medical Implant Provided with Inhibitors of Atp Synthesis |
US7887579B2 (en) | 2004-09-29 | 2011-02-15 | Merit Medical Systems, Inc. | Active stent |
US7544205B2 (en) * | 2004-12-20 | 2009-06-09 | Cook Incorporated | Intraluminal support frame and medical devices including the support frame |
US7947207B2 (en) | 2005-04-12 | 2011-05-24 | Abbott Cardiovascular Systems Inc. | Method for retaining a vascular stent on a catheter |
US7763198B2 (en) | 2005-04-12 | 2010-07-27 | Abbott Cardiovascular Systems Inc. | Method for retaining a vascular stent on a catheter |
US7381048B2 (en) * | 2005-04-12 | 2008-06-03 | Advanced Cardiovascular Systems, Inc. | Stents with profiles for gripping a balloon catheter and molds for fabricating stents |
US8628565B2 (en) * | 2005-04-13 | 2014-01-14 | Abbott Cardiovascular Systems Inc. | Intravascular stent |
WO2006116383A2 (en) | 2005-04-25 | 2006-11-02 | Ev3, Inc. | Controlled fracture connections for stents |
US7731654B2 (en) | 2005-05-13 | 2010-06-08 | Merit Medical Systems, Inc. | Delivery device with viewing window and associated method |
EP1895938B1 (en) | 2005-06-30 | 2019-02-20 | Abbott Laboratories | Endoprosthesis having foot extensions |
EP1903985A4 (en) | 2005-07-07 | 2010-04-28 | Nellix Inc | Systems and methods for endovascular aneurysm treatment |
JP2009502302A (en) | 2005-07-25 | 2009-01-29 | グロス,ヨシ | Electrical stimulation of blood vessels |
US20070061003A1 (en) * | 2005-09-15 | 2007-03-15 | Cappella, Inc. | Segmented ostial protection device |
US20070088428A1 (en) * | 2005-09-15 | 2007-04-19 | Cappella, Inc. | Intraluminal device with asymmetric cap portion |
US8551153B2 (en) * | 2005-12-20 | 2013-10-08 | Cordis Corporation | Prosthesis comprising a coiled stent and method of use thereof |
EP1986568B1 (en) | 2006-02-03 | 2017-04-05 | Covidien LP | Methods and devices for restoring blood flow within blocked vasculature |
US8821561B2 (en) | 2006-02-22 | 2014-09-02 | Boston Scientific Scimed, Inc. | Marker arrangement for bifurcation catheter |
US8043358B2 (en) * | 2006-03-29 | 2011-10-25 | Boston Scientific Scimed, Inc. | Stent with overlap and high extension |
US8348991B2 (en) * | 2006-03-29 | 2013-01-08 | Boston Scientific Scimed, Inc. | Stent with overlap and high expansion |
US8240020B2 (en) * | 2006-06-30 | 2012-08-14 | Advanced Cardiovascular Systems, Inc. | Stent retention mold and method |
WO2008006090A2 (en) | 2006-07-06 | 2008-01-10 | Quiescence Medical, Inc. | Apparatus and methods for treating sleep apnea |
US7988720B2 (en) | 2006-09-12 | 2011-08-02 | Boston Scientific Scimed, Inc. | Longitudinally flexible expandable stent |
US20080065192A1 (en) * | 2006-09-13 | 2008-03-13 | Medtronic Vascular, Inc. | Compliance Graded Stent |
KR101659197B1 (en) | 2006-10-22 | 2016-09-22 | 이데브 테크놀로지스, 아이엔씨. | Devices and methods for stent advancement |
US8512392B2 (en) * | 2007-03-09 | 2013-08-20 | Boston Scientific Scimed, Inc. | Stent design with struts of various angles and stiffness |
US8128679B2 (en) | 2007-05-23 | 2012-03-06 | Abbott Laboratories Vascular Enterprises Limited | Flexible stent with torque-absorbing connectors |
US8016874B2 (en) | 2007-05-23 | 2011-09-13 | Abbott Laboratories Vascular Enterprises Limited | Flexible stent with elevated scaffolding properties |
US9144509B2 (en) | 2007-05-31 | 2015-09-29 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US9364586B2 (en) | 2007-05-31 | 2016-06-14 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US9149610B2 (en) | 2007-05-31 | 2015-10-06 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US20080319535A1 (en) * | 2007-06-25 | 2008-12-25 | Medtronic Vascular, Inc. | Vascular Stent and Method of Making Vascular Stent |
US8486134B2 (en) | 2007-08-01 | 2013-07-16 | Boston Scientific Scimed, Inc. | Bifurcation treatment system and methods |
US8226701B2 (en) | 2007-09-26 | 2012-07-24 | Trivascular, Inc. | Stent and delivery system for deployment thereof |
US8663309B2 (en) | 2007-09-26 | 2014-03-04 | Trivascular, Inc. | Asymmetric stent apparatus and method |
US8066755B2 (en) | 2007-09-26 | 2011-11-29 | Trivascular, Inc. | System and method of pivoted stent deployment |
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 |
US8328861B2 (en) | 2007-11-16 | 2012-12-11 | Trivascular, Inc. | Delivery system and method for bifurcated graft |
US8083789B2 (en) | 2007-11-16 | 2011-12-27 | Trivascular, Inc. | Securement assembly and method for expandable endovascular device |
US8337544B2 (en) | 2007-12-20 | 2012-12-25 | Abbott Laboratories Vascular Enterprises Limited | Endoprosthesis having flexible connectors |
US8920488B2 (en) | 2007-12-20 | 2014-12-30 | Abbott Laboratories Vascular Enterprises Limited | Endoprosthesis having a stable architecture |
US7850726B2 (en) | 2007-12-20 | 2010-12-14 | Abbott Laboratories Vascular Enterprises Limited | Endoprosthesis having struts linked by foot extensions |
US8291781B2 (en) | 2007-12-21 | 2012-10-23 | Schlumberger Technology Corporation | System and methods for actuating reversibly expandable structures |
EP2242456A2 (en) | 2007-12-31 | 2010-10-27 | Boston Scientific Scimed, Inc. | Bifurcation stent delivery system and methods |
US8538535B2 (en) | 2010-08-05 | 2013-09-17 | Rainbow Medical Ltd. | Enhancing perfusion by contraction |
JP5663471B2 (en) | 2008-04-25 | 2015-02-04 | ネリックス・インコーポレーテッド | Stent / graft delivery system |
US10716573B2 (en) | 2008-05-01 | 2020-07-21 | Aneuclose | Janjua aneurysm net with a resilient neck-bridging portion for occluding a cerebral aneurysm |
US10028747B2 (en) | 2008-05-01 | 2018-07-24 | Aneuclose Llc | Coils with a series of proximally-and-distally-connected loops for occluding a cerebral aneurysm |
US8377108B2 (en) | 2008-06-02 | 2013-02-19 | Boston Scientific Scimed, Inc. | Staggered two balloon bifurcation catheter assembly and methods |
JP2011522615A (en) | 2008-06-04 | 2011-08-04 | ネリックス・インコーポレーテッド | Sealing device and method of use |
JP5662310B2 (en) | 2008-06-05 | 2015-01-28 | 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Boston Scientific Scimed,Inc. | Shrinkable branch device and method of manufacturing the same |
EP2299945B1 (en) | 2008-06-05 | 2016-03-23 | Boston Scientific Scimed, Inc. | Balloon bifurcated lumen treatment |
US8734502B2 (en) * | 2008-12-17 | 2014-05-27 | Cook Medical Technologies Llc | Tapered stent and flexible prosthesis |
EP2403583B1 (en) | 2009-03-06 | 2016-10-19 | Lazarus Effect, Inc. | Retrieval systems |
US8795317B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Embolic obstruction retrieval devices and methods |
US8357179B2 (en) * | 2009-07-08 | 2013-01-22 | 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 |
US20110009941A1 (en) * | 2009-07-08 | 2011-01-13 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8357178B2 (en) * | 2009-07-08 | 2013-01-22 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8795345B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US20110067471A1 (en) * | 2009-09-18 | 2011-03-24 | Medtronic Vascular, Inc. | Method and Apparatus for Creating Formed Elements Used to Make Wound Stents |
US9358140B1 (en) | 2009-11-18 | 2016-06-07 | Aneuclose Llc | Stent with outer member to embolize an aneurysm |
US20110276078A1 (en) | 2009-12-30 | 2011-11-10 | Nellix, Inc. | Filling structure for a graft system and methods of use |
WO2011126572A2 (en) * | 2010-04-07 | 2011-10-13 | Office Of Technology Transfer | An expandable stent that collapses into a non-convex shape and expands into an expanded, convex shape |
WO2011143443A2 (en) * | 2010-05-12 | 2011-11-17 | Medical Device Innovations Llc | Method and device for treatment of arrhythmias and other maladies |
US20130109987A1 (en) * | 2011-05-12 | 2013-05-02 | Medical Device Innovations Inc. | Method and device for treatment of arrhythmias and other maladies |
US9023095B2 (en) | 2010-05-27 | 2015-05-05 | Idev Technologies, Inc. | Stent delivery system with pusher assembly |
CN101926699A (en) * | 2010-07-13 | 2010-12-29 | 北京迈迪顶峰医疗科技有限公司 | Atrial septal pore-forming scaffold and conveyor thereof |
WO2012009675A2 (en) | 2010-07-15 | 2012-01-19 | Lazarus Effect, Inc. | Retrieval systems and methods for use thereof |
US9265649B2 (en) | 2010-12-13 | 2016-02-23 | Quiescence Medical, Inc. | Apparatus and methods for treating sleep apnea |
EP2658484A1 (en) | 2010-12-30 | 2013-11-06 | Boston Scientific Scimed, Inc. | Multi stage opening stent designs |
US8801768B2 (en) | 2011-01-21 | 2014-08-12 | Endologix, Inc. | Graft systems having semi-permeable filling structures and methods for their use |
KR101680420B1 (en) | 2011-02-04 | 2016-11-28 | 콘센트릭 메디칼, 인크. | Vascular and bodily duct treatment devices and methods |
CA2823535A1 (en) | 2011-03-03 | 2012-09-07 | Boston Scientific Scimed, Inc. | Low strain high strength stent |
WO2012119037A1 (en) | 2011-03-03 | 2012-09-07 | Boston Scientific Scimed, Inc. | Stent with reduced profile |
US9415195B2 (en) | 2011-04-06 | 2016-08-16 | Engologix, Inc. | Method and system for treating aneurysms |
EP3741314B1 (en) | 2011-05-23 | 2022-12-21 | Covidien LP | Retrieval systems |
WO2013035092A2 (en) | 2011-09-09 | 2013-03-14 | Enopace Biomedical Ltd. | Wireless endovascular stent-based electrodes |
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 |
CA2873440C (en) | 2012-05-14 | 2020-06-02 | C.R. Bard, Inc. | Uniformly expandable stent |
US8784434B2 (en) | 2012-11-20 | 2014-07-22 | Inceptus Medical, Inc. | Methods and apparatus for treating embolism |
USD723165S1 (en) | 2013-03-12 | 2015-02-24 | C. R. Bard, Inc. | Stent |
CN105120910B (en) | 2013-03-14 | 2019-04-12 | 恩朵罗杰克斯股份有限公司 | Method for material to be formed in situ in medical instrument |
US9907684B2 (en) | 2013-05-08 | 2018-03-06 | Aneuclose Llc | Method of radially-asymmetric stent expansion |
EP3010453A1 (en) | 2013-06-21 | 2016-04-27 | Christopher G. Kunis | Implant device with stablizer |
WO2014210282A1 (en) * | 2013-06-26 | 2014-12-31 | Kunis Christopher G | Implant device with spine and c-ring |
US10238406B2 (en) | 2013-10-21 | 2019-03-26 | Inari Medical, Inc. | Methods and apparatus for treating embolism |
CN108836586B (en) * | 2013-11-06 | 2021-04-06 | 伊诺佩斯生医有限公司 | Wireless intravascular stent-based electrode |
EP3388032B1 (en) * | 2014-03-18 | 2019-06-26 | Boston Scientific Scimed, Inc. | Reduced granulation and inflammation stent design |
KR101631492B1 (en) * | 2014-08-11 | 2016-06-17 | 주식회사 바이오알파 | Vascular Stent |
US9693860B2 (en) * | 2014-12-01 | 2017-07-04 | Medtronic, Inc. | Segmented transcatheter valve prosthesis having an unsupported valve segment |
WO2016130647A1 (en) | 2015-02-11 | 2016-08-18 | Lazarus Effect, Inc. | Expandable tip medical devices and methods |
EP4233744A3 (en) | 2015-10-23 | 2023-11-01 | Inari Medical, Inc. | Device for intravascular treatment of vascular occlusion |
JP6965336B2 (en) | 2016-03-31 | 2021-11-10 | ヴェスパー メディカル、 インコーポレイテッドVesper Medical, Inc. | Intravascular implant |
CN110312481B (en) | 2016-10-24 | 2023-04-11 | 伊纳里医疗有限公司 | Devices and methods for treating vascular occlusions |
US11129630B2 (en) | 2017-05-12 | 2021-09-28 | Covidien Lp | Retrieval of material from vessel lumens |
US10722257B2 (en) | 2017-05-12 | 2020-07-28 | Covidien Lp | Retrieval of material from vessel lumens |
US11191555B2 (en) | 2017-05-12 | 2021-12-07 | Covidien Lp | Retrieval of material from vessel lumens |
US10709464B2 (en) | 2017-05-12 | 2020-07-14 | Covidien Lp | Retrieval of material from vessel lumens |
US11298145B2 (en) | 2017-05-12 | 2022-04-12 | Covidien Lp | Retrieval of material from vessel lumens |
WO2018232044A1 (en) | 2017-06-12 | 2018-12-20 | Covidien Lp | Tools for sheathing treatment devices and associated systems and methods |
US10478322B2 (en) | 2017-06-19 | 2019-11-19 | Covidien Lp | Retractor device for transforming a retrieval device from a deployed position to a delivery position |
CN109124840A (en) * | 2017-06-19 | 2019-01-04 | 上海微创医疗器械(集团)有限公司 | A kind of method and medical device of the binding force improving bracket and sacculus |
US10575864B2 (en) | 2017-06-22 | 2020-03-03 | Covidien Lp | Securing element for resheathing an intravascular device and associated systems and methods |
US10849769B2 (en) | 2017-08-23 | 2020-12-01 | Vesper Medical, Inc. | Non-foreshortening stent |
WO2019050765A1 (en) | 2017-09-06 | 2019-03-14 | Inari Medical, Inc. | Hemostasis valves and methods of use |
US10271977B2 (en) | 2017-09-08 | 2019-04-30 | Vesper Medical, Inc. | Hybrid stent |
US11357650B2 (en) | 2019-02-28 | 2022-06-14 | Vesper Medical, Inc. | Hybrid stent |
US11628076B2 (en) | 2017-09-08 | 2023-04-18 | Vesper Medical, Inc. | Hybrid stent |
CA3079094C (en) | 2017-10-25 | 2022-07-12 | Boston Scientific Scimed, Inc. | Stent with atraumatic spacer |
EP3681436A1 (en) | 2017-11-01 | 2020-07-22 | Boston Scientific Scimed Inc. | Esophageal stent including a valve member |
US20200368008A1 (en) * | 2018-01-16 | 2020-11-26 | Olympus Corporation | Urological Stent |
US11154314B2 (en) | 2018-01-26 | 2021-10-26 | Inari Medical, Inc. | Single insertion delivery system for treating embolism and associated systems and methods |
US11364134B2 (en) * | 2018-02-15 | 2022-06-21 | Vesper Medical, Inc. | Tapering stent |
US10500078B2 (en) | 2018-03-09 | 2019-12-10 | Vesper Medical, Inc. | Implantable stent |
AU2019321256B2 (en) | 2018-08-13 | 2023-06-22 | Inari Medical, Inc. | System for treating embolism and associated devices and methods |
US11684498B2 (en) | 2018-10-19 | 2023-06-27 | Inspire M.D Ltd. | Methods of using a self-adjusting stent assembly and kits including same |
CN110314024B (en) * | 2019-06-26 | 2021-11-05 | 北京工业大学 | Conformal adherent endovascular stent |
CN114845648A (en) | 2019-10-16 | 2022-08-02 | 伊纳里医疗有限公司 | Systems, devices, and methods for treating vascular occlusions |
US10881541B1 (en) * | 2020-05-01 | 2021-01-05 | Krishna Rocha-Singh | Systems and methods for treating venous compression/obstruction syndromes |
US11400299B1 (en) | 2021-09-14 | 2022-08-02 | Rainbow Medical Ltd. | Flexible antenna for stimulator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183372A1 (en) * | 1984-10-19 | 1986-06-04 | RAYCHEM CORPORATION (a Delaware corporation) | Prosthetic stent |
US5064435A (en) * | 1990-06-28 | 1991-11-12 | Schneider (Usa) Inc. | Self-expanding prosthesis having stable axial length |
WO1993022986A1 (en) * | 1992-05-08 | 1993-11-25 | Schneider (Usa) Inc. | Esophageal stent and delivery tool |
EP0688545A1 (en) * | 1994-06-17 | 1995-12-27 | Terumo Kabushiki Kaisha | Indwelling stent and the method for manufacturing the same |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL94138A (en) * | 1990-04-19 | 1997-03-18 | Instent Inc | Device for the treatment of constricted fluid conducting ducts |
US5108417A (en) * | 1990-09-14 | 1992-04-28 | Interface Biomedical Laboratories Corp. | Anti-turbulent, anti-thrombogenic intravascular stent |
DE4104702C2 (en) * | 1991-02-15 | 1996-01-18 | Malte Neuss | Implants for organ pathways in spiral form |
FR2683449A1 (en) * | 1991-11-08 | 1993-05-14 | Cardon Alain | ENDOPROTHESIS FOR TRANSLUMINAL IMPLANTATION. |
DK6192A (en) * | 1992-01-20 | 1993-07-21 | Engineers & Doctors As | SEGMENTALLY EXPANDABLE TUBULAR ENDOLUMINAL PROSTHESIS |
FR2688401B1 (en) * | 1992-03-12 | 1998-02-27 | Thierry Richard | EXPANDABLE STENT FOR HUMAN OR ANIMAL TUBULAR MEMBER, AND IMPLEMENTATION TOOL. |
GR920100104A (en) * | 1992-03-13 | 1993-11-30 | Christodoulos I Stefanadis | Temporary luminal stent for the support of the vascular wall. |
US5540712A (en) * | 1992-05-01 | 1996-07-30 | Nitinol Medical Technologies, Inc. | Stent and method and apparatus for forming and delivering the same |
DE4303181A1 (en) * | 1993-02-04 | 1994-08-11 | Angiomed Ag | Implantable catheter |
FR2714815B1 (en) * | 1994-01-10 | 1996-03-08 | Microfil Ind Sa | Elastic prosthesis to widen a duct, in particular a blood vessel. |
US5466242A (en) * | 1994-02-02 | 1995-11-14 | Mori; Katsushi | Stent for biliary, urinary or vascular system |
US5609627A (en) | 1994-02-09 | 1997-03-11 | Boston Scientific Technology, Inc. | Method for delivering a bifurcated endoluminal prosthesis |
US5556413A (en) * | 1994-03-11 | 1996-09-17 | Advanced Cardiovascular Systems, Inc. | Coiled stent with locking ends |
US5449373A (en) * | 1994-03-17 | 1995-09-12 | Medinol Ltd. | Articulated stent |
AU2255195A (en) * | 1994-04-06 | 1995-10-30 | William Cook Europe A/S | A medical article for implantation into the vascular system of a patient |
CA2147813A1 (en) * | 1994-04-28 | 1995-10-29 | Richard Dixon | Intravascular prosthesis with anti-thrombogenic coating |
DE4418336A1 (en) * | 1994-05-26 | 1995-11-30 | Angiomed Ag | Stent for widening and holding open receptacles |
JP3577353B2 (en) * | 1995-01-27 | 2004-10-13 | テルモ株式会社 | In-vivo stent |
US5575818A (en) * | 1995-02-14 | 1996-11-19 | Corvita Corporation | Endovascular stent with locking ring |
EP0813397A4 (en) * | 1995-03-10 | 1999-10-06 | Cardiovascular Concepts Inc | Tubular endoluminar prosthesis having oblique ends |
DE19512342C2 (en) * | 1995-04-01 | 1998-05-14 | Webasto Karosseriesysteme | Vehicle roof |
BE1009278A3 (en) * | 1995-04-12 | 1997-01-07 | Corvita Europ | Guardian self-expandable medical device introduced in cavite body, and medical device with a stake as. |
BE1009277A3 (en) * | 1995-04-12 | 1997-01-07 | Corvita Europ | Guardian self-expandable medical device introduced in cavite body, and method of preparation. |
ATE270528T1 (en) * | 1995-04-12 | 2004-07-15 | Corvita Europ | SELF-EXPANDING STENT FOR INTRODUCING A MEDICAL DEVICE INTO A BODY CAVITY AND METHOD OF MANUFACTURING |
US5824037A (en) * | 1995-10-03 | 1998-10-20 | Medtronic, Inc. | Modular intraluminal prostheses construction and methods |
DE69526857T2 (en) * | 1995-11-27 | 2003-01-02 | Schneider Europ Gmbh Buelach | Stent for use in one pass |
US5658308A (en) * | 1995-12-04 | 1997-08-19 | Target Therapeutics, Inc. | Bioactive occlusion coil |
WO1997025937A1 (en) * | 1996-01-18 | 1997-07-24 | Jang G David | Programmable variably flexible modular stents |
US5938682A (en) * | 1996-01-26 | 1999-08-17 | Cordis Corporation | Axially flexible stent |
US5843117A (en) * | 1996-02-14 | 1998-12-01 | Inflow Dynamics Inc. | Implantable vascular and endoluminal stents and process of fabricating the same |
CA2192520A1 (en) * | 1996-03-05 | 1997-09-05 | Ian M. Penn | Expandable stent and method for delivery of same |
US5868780A (en) | 1996-03-22 | 1999-02-09 | Lashinski; Robert D. | Stents for supporting lumens in living tissue |
NZ331269A (en) | 1996-04-10 | 2000-01-28 | Advanced Cardiovascular System | Expandable stent, its structural strength varying along its length |
US5922021A (en) * | 1996-04-26 | 1999-07-13 | Jang; G. David | Intravascular stent |
US5617878A (en) * | 1996-05-31 | 1997-04-08 | Taheri; Syde A. | Stent and method for treatment of aortic occlusive disease |
US5807404A (en) * | 1996-09-19 | 1998-09-15 | Medinol Ltd. | Stent with variable features to optimize support and method of making such stent |
US5776142A (en) * | 1996-12-19 | 1998-07-07 | Medtronic, Inc. | Controllable stent delivery system and method |
US5868782A (en) * | 1996-12-24 | 1999-02-09 | Global Therapeutics, Inc. | Radially expandable axially non-contracting surgical stent |
US5827321A (en) * | 1997-02-07 | 1998-10-27 | Cornerstone Devices, Inc. | Non-Foreshortening intraluminal prosthesis |
US5817126A (en) * | 1997-03-17 | 1998-10-06 | Surface Genesis, Inc. | Compound stent |
US6200335B1 (en) | 1997-03-31 | 2001-03-13 | Kabushikikaisha Igaki Iryo Sekkei | Stent for vessel |
US5868783A (en) * | 1997-04-16 | 1999-02-09 | Numed, Inc. | Intravascular stent with limited axial shrinkage |
US5836966A (en) * | 1997-05-22 | 1998-11-17 | Scimed Life Systems, Inc. | Variable expansion force stent |
US5913895A (en) * | 1997-06-02 | 1999-06-22 | Isostent, Inc. | Intravascular stent with enhanced rigidity strut members |
DE19728337A1 (en) * | 1997-07-03 | 1999-01-07 | Inst Mikrotechnik Mainz Gmbh | Implantable stent |
US5855600A (en) * | 1997-08-01 | 1999-01-05 | Inflow Dynamics Inc. | Flexible implantable stent with composite design |
US6179867B1 (en) | 1998-01-16 | 2001-01-30 | Advanced Cardiovascular Systems, Inc. | Flexible stent and method of use |
US5938697A (en) * | 1998-03-04 | 1999-08-17 | Scimed Life Systems, Inc. | Stent having variable properties |
US6273910B1 (en) | 1999-03-11 | 2001-08-14 | Advanced Cardiovascular Systems, Inc. | Stent with varying strut geometry |
US6273911B1 (en) | 1999-04-22 | 2001-08-14 | Advanced Cardiovascular Systems, Inc. | Variable strength stent |
-
1997
- 1997-05-22 US US08/861,798 patent/US5836966A/en not_active Expired - Lifetime
-
1998
- 1998-05-21 EP EP05017561A patent/EP1598032B1/en not_active Expired - Lifetime
- 1998-05-21 EP EP98923626A patent/EP1001718B1/en not_active Expired - Lifetime
- 1998-05-21 DE DE69831575T patent/DE69831575T2/en not_active Expired - Lifetime
- 1998-05-21 AT AT05017561T patent/ATE502607T1/en not_active IP Right Cessation
- 1998-05-21 WO PCT/US1998/010415 patent/WO1998052497A2/en active IP Right Grant
- 1998-05-21 JP JP55064198A patent/JP2002500533A/en active Pending
- 1998-05-21 AT AT98923626T patent/ATE304329T1/en not_active IP Right Cessation
- 1998-05-21 DE DE69842197T patent/DE69842197D1/en not_active Expired - Lifetime
- 1998-05-21 CA CA002288044A patent/CA2288044C/en not_active Expired - Fee Related
- 1998-11-17 US US09/193,504 patent/US6146403A/en not_active Expired - Lifetime
-
2000
- 2000-06-29 US US09/606,898 patent/US6423084B1/en not_active Expired - Lifetime
-
2002
- 2002-03-26 US US10/106,162 patent/US6997945B2/en not_active Expired - Fee Related
-
2005
- 2005-12-23 US US11/318,196 patent/US7485130B2/en not_active Expired - Fee Related
-
2009
- 2009-01-21 JP JP2009010540A patent/JP4996633B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183372A1 (en) * | 1984-10-19 | 1986-06-04 | RAYCHEM CORPORATION (a Delaware corporation) | Prosthetic stent |
US5064435A (en) * | 1990-06-28 | 1991-11-12 | Schneider (Usa) Inc. | Self-expanding prosthesis having stable axial length |
WO1993022986A1 (en) * | 1992-05-08 | 1993-11-25 | Schneider (Usa) Inc. | Esophageal stent and delivery tool |
EP0688545A1 (en) * | 1994-06-17 | 1995-12-27 | Terumo Kabushiki Kaisha | Indwelling stent and the method for manufacturing the same |
Non-Patent Citations (1)
Title |
---|
See also references of EP1001718A2 * |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US6210429B1 (en) | 1996-11-04 | 2001-04-03 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
US6599316B2 (en) | 1996-11-04 | 2003-07-29 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
US6997945B2 (en) | 1997-05-22 | 2006-02-14 | Boston Scientific Scimed, Inc. | Variable expansion force stent |
US7485130B2 (en) | 1997-05-22 | 2009-02-03 | Boston Scientific Scimed, Inc. | Variable expansion force stent |
US6423084B1 (en) | 1997-05-22 | 2002-07-23 | Scimed Life Systems, Inc | Variable expansion force stent |
US6146403A (en) * | 1997-05-22 | 2000-11-14 | Scimed Life Systems, Inc. | Variable expansion force stent |
US6325826B1 (en) | 1998-01-14 | 2001-12-04 | Advanced Stent Technologies, Inc. | Extendible stent apparatus |
US7060091B2 (en) | 1998-03-04 | 2006-06-13 | Boston Scientific Scimed, Inc. | Stent having variable properties and method of its use |
EP1598031A3 (en) * | 1998-03-04 | 2005-11-30 | Boston Scientific Limited | Stent having variable properties |
US7402169B2 (en) | 1998-03-04 | 2008-07-22 | Boston Scientific Scimed, Inc. | Stent having variable properties and method of its use |
US7780719B2 (en) | 1998-03-04 | 2010-08-24 | Boston Scientific Scimed, Inc. | Stent having variable properties and method of its use |
JP2014111126A (en) * | 1999-02-01 | 2014-06-19 | Board Of Regents The Univ Of Texas System | Woven intravascular device and method for manufacturing the same and apparatus for delivering the same |
US9925074B2 (en) | 1999-02-01 | 2018-03-27 | Board Of Regents, The University Of Texas System | Plain woven stents |
JP2001309984A (en) * | 2000-05-01 | 2001-11-06 | Univ Tsukuba | Stent for maintaining openability of stenosis portion in lumen |
US8282678B2 (en) | 2002-11-13 | 2012-10-09 | Allium Medical Solutions Ltd. | Endoluminal lining |
US9629736B2 (en) | 2006-10-22 | 2017-04-25 | Idev Technologies, Inc. | Secured strand end devices |
US9895242B2 (en) | 2006-10-22 | 2018-02-20 | Idev Technologies, Inc. | Secured strand end devices |
US10470902B2 (en) | 2006-10-22 | 2019-11-12 | Idev Technologies, Inc. | Secured strand end devices |
US10022255B2 (en) | 2016-04-11 | 2018-07-17 | Idev Technologies, Inc. | Stent delivery system having anisotropic sheath |
Also Published As
Publication number | Publication date |
---|---|
ATE502607T1 (en) | 2011-04-15 |
DE69831575D1 (en) | 2005-10-20 |
JP4996633B2 (en) | 2012-08-08 |
US20060100691A1 (en) | 2006-05-11 |
US6423084B1 (en) | 2002-07-23 |
US20020099406A1 (en) | 2002-07-25 |
WO1998052497A3 (en) | 1999-02-25 |
CA2288044C (en) | 2007-03-20 |
US5836966A (en) | 1998-11-17 |
US6146403A (en) | 2000-11-14 |
EP1598032A3 (en) | 2005-11-30 |
EP1001718A2 (en) | 2000-05-24 |
CA2288044A1 (en) | 1998-11-26 |
JP2009082739A (en) | 2009-04-23 |
DE69842197D1 (en) | 2011-05-05 |
DE69831575T2 (en) | 2006-02-02 |
JP2002500533A (en) | 2002-01-08 |
ATE304329T1 (en) | 2005-09-15 |
EP1598032A2 (en) | 2005-11-23 |
US7485130B2 (en) | 2009-02-03 |
US6997945B2 (en) | 2006-02-14 |
EP1001718B1 (en) | 2005-09-14 |
EP1598032B1 (en) | 2011-03-23 |
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