WO2000027306A1 - Expandable stent and method for manufacturing same - Google Patents
Expandable stent and method for manufacturing same Download PDFInfo
- Publication number
- WO2000027306A1 WO2000027306A1 PCT/CA1999/000397 CA9900397W WO0027306A1 WO 2000027306 A1 WO2000027306 A1 WO 2000027306A1 CA 9900397 W CA9900397 W CA 9900397W WO 0027306 A1 WO0027306 A1 WO 0027306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- modules
- module
- strands
- connectors
- Prior art date
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
- A61F2/86—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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30136—Rounded shapes, e.g. with rounded corners undulated or wavy, e.g. serpentine-shaped or zigzag-shaped
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
Definitions
- This application relates to an expandable stent for deployment in a body lumen, such as a blood vessel.
- the stent is useful in the treatment of atherosclerotic stenosis.
- Cardiovascular disease is the leading cause of death in the United States and Canada.
- the disease state is commonly caused by the deposition of fatty plague within the coronary arteries, which is termed atherosclerosis.
- Atherosclerosis gradually results in a narrowing of the coronary arteries and a corresponding decrease in blood flow to heart muscles. Eventually this may trigger serious clinical compHcations, such as angina or myocardial infarction.
- Stents are small tubular devices, typically constructed from biocompatible metal, which are inserted in blood vessels and the like to maintain the patency of the vessel lumen. Once deployed, stents radially support a segment of the vessel wall and help prevent atherosclerotic plague from occluding the lumen.
- Stents are commonly deployed by means of a thin-walled intravascular balloon dilation catheter.
- This procedure involves mounting a compressed stent around an expandable balloon positioned at the distal end of the catheter.
- the catheter is carefully guided by a physician to the desired location while monitoring the procedure on a video screen.
- the catheter may be inserted into the femoral artery of the patient and progressively advanced into the iliac artery, ascending aorta and finally into a coronary artery.
- the physician dilates the balloon to flatten plague deposits and expand the stent from the compressed configuration to a fully expanded configuration supporting the vessel wall.
- the balloon is then deflated and the catheter is withdrawn from the patient.
- stents In order to be effective, stents must exhibit both longitudinal flexibility and radial rigidity. Flexibility is necessary to permit the physician to readily guide the catheter through the twists and turns of blood vessel passageways when deploying the stent. Radial rigidity is desired to ensure that, once deployed, the stent will have the mechanical rigidity to maintain the patency of the vessel lumen. In other words, the stent must be capable of effectively resisting restenosis (i.e. the chronic or acute occlusion of the coronary arteries following balloon angioplasty).
- restenosis i.e. the chronic or acute occlusion of the coronary arteries following balloon angioplasty
- Lau et al. discloses stents comprising a plurality of radially expandable cylindrical elements which are connected together and aligned on a common longitudinal axis. Each individual element may be formed in an undulating or serpentine pattern and includes edges which project outwardly when the stent is expanded. While the Lau et al. stents exhibit good longitudinal flexibility, the projecting edges have the capacity to damage tissue when they are embedded in the vascular wall at the lesion site to maintain the stent in position.
- the Lau et al. stent elements are preferably formed from stainless steel tubing which is subjected to chemical etching and laser patterning. Such manuf acturing processes require costly equipment, such as machine-controlled lasers.
- Canadian Patent No. 2,202,476 published 2 May, 1996 to Birdsall et al. is also representative of the prior art.
- This patent relates to a connected stent apparatus comprising a plurality of stent segments formed from wires arranged in an undulating pattern.
- the stent segments are connected together by a series of small welds which restrict the stent 's overall longitudinal flexibility. Further, the need to make a large number of welds increases production costs and restricts the capacity to make low profile (i.e. very small size) stents.
- a stent comprising a plurality of separate stent modules.
- Each module includes a first element comprising a first flexible wire strand and a second flexible wire strand; a second element comprising a third flexible wire strand and a fourth flexible wire strand; and fastening means for joining the first and second elements together.
- the fastening means comprises a first connector for joining the first and second elements at a first location; and a second connector for joining the first and second elements at a second location opposite the first location.
- the first and second elements are formed in a sinusoidal wave pattern having alternating peaks and troughs.
- the peaks on the first element are aligned with the troughs on the second element, and the troughs on the first element are aligned with the peaks on the second element.
- the first and second elements are moveable between a substantially flattened position and a cylindrical expanded position. In the flattened position, the first and second elements extend in a substantially common plane. In the expanded position, the first and second elements are annular in shape and are aligned to define a cylindrical opening.
- first, second, third and fourth strands are of substantially equal length and each strand is serru-cylindrical in shape in the expanded position.
- the first and second elements may comprise equal length segments of a multi-stranded flexible wire.
- the first and second elements each comprise 2(n) wire strands where n is an integer greater than or equal to 1.
- the application also relates to an elongated stent comprising a plurality of stent modules connected together along a common longitudinal axis by fastening one of the first and second connectors on one of the modules to one of the first and second connectors on an adjacent module.
- the modules are fastened together on alternating sides of the stent.
- a method of forming a stent module is also disclosed which includes the steps of
- a method of forming an elongated stent includes the steps of:
- Figure 1 is an enlarged, fragmented sectional view of a portion of blood vessel showing the applicant's stent mounted on a balloon catheter;
- Figure 2 is an isometric view of a single stent module
- Figure 3 is an isometric view of a stent comprising a plurality of interconnected stent modules as illustrated in Figure 2;
- Figure 4 is an isometric view illustrating a method for manufacturing a stent module in accordance with the applicant's invention
- Figure 5 is an isometric view of a method step for adjusting a stent module derived from the process of Figure 4 from a flattened to an expanded configuration;
- Figure 6 is an isometric view of a stent in its flattened configuration comprising a pluraHty of interconnected stent modules as illustrated in Figure 5;
- Figure 7 is an isometric view of an alternative stent module having closely-spaced wire waUs.
- Figure 8 is a fragmented, isometric view of a stent suitable for holding graft material which comprises a pluraHty of stent modules as illustrated in Figure 7.
- a stent suitable for holding graft material which comprises a pluraHty of stent modules as illustrated in Figure 7.
- FIG. 1 illustrates the appHcant's stent 10 in its expanded configuration within a blood vessel 4 or other body lumen.
- Stent 10 is deployed in vessel 4 by mounting it on an expandable baUoon 6 of a flexible catheter 8. As described further below, after baUoon 6 is deflated and catheter 8 is withdrawn, stent 10 remains in place within vessel 4 to radiaUy support a segment of the inner vessel waU 9.
- Stent 10 ordinarily comprises a pluraHty of separate stent modules 12 which are fastened together (although stent 10 could comprise a single module 12).
- each module 12 consists of a first segment 14 and a second segment 16 which are joined on opposite sides of each module 12 by means of a first connector 18 and a second connector 20.
- segments 14 and 16 are annular in shape and are longitudinaUy aHgned to define a cylindrical opening 17 for perrnitting blood flow through the interior of stent 10.
- segments 14, 16 comprise flexible wire elements which are formed in a sinusoidal pattern comprising a pluraHty of peaks 43 and troughs 45 as iUustrated in Figures 1 and 2 and described below.
- Each stent module 12 is individually expandable to conform to the internal anatomy of vessel waU 9.
- Connectors 18, 20 provide enhanced vessel waH support and are radio-opaque for easy visualization under fluoroscopy.
- the peaks 43 and troughs 45 of module segments 14, 16 are aHgned in the direction of the vessel 4 to be stented (i.e. along the longitudinal axis of cylindrical opening 17 in the direction of blood flow).
- Each individual module 12 is relatively short in length and is radially rigid. The combination of a pluraHty of modules 12 having these design characteristics provides stent 10 with a high degree of radial strength.
- Interconnection elements 22 extend between connectors 18, 20 on adjacent modules 12 and may comprise, for example, strands or loops of flexible wire. Ln the illustrated embodiment, interconnection elements 22 alternate on opposite sides of stent 10 so each pair of adjacent modules 12 are coupled by a single interconnection element 22. This provides stent 10 with a high degree of longitudinal flexibility which facilitates its insertion inside a tortuous body lumen. However, as will be apparent to someone skiUed in the art, each pair of adjacent modules 12 could alternatively be coupled by two interconnection elements 22 (i.e.
- each pair of adjacent modules 12 is coupled together by at least one interconnection element 22.
- Figures 4 and 5 illustrate method steps for fabricating a stent module 12.
- a length of flexible wire 24 having a first strand 26 and a second strand 28 is provided.
- wire 24 is bent until a first wire end 30 is juxtaposed with a second wire end 32.
- Wire ends 30, 32 are coupled together with first connector 18.
- Second connector 20 is then secured to wire 24 at a location directly opposite connector 18.
- Connectors 18, 20 therefore subdivide module 12 into first segment 14 and second segment 16 which are of substantiaUy equal length.
- Connectors 18 and 20 and wire strands 26 and 28 are preferably constructed from medical grade stainless steel. OptionaUy other biocompatible materials could be employed.
- connectors 18, 20 may comprise smaH metal tubes which encircle wire 24 and are mechanicaUy crimped to hold connectors 18, 20 in place.
- Other equivalent means for securing wire strands 26, 28 together on opposite sides of stent module 12 may be substituted.
- connectors 18, 20 could comprise cHps, welds, or the like.
- module 12 could be fabricated from two separate wire strands 26 and 28 each formed in an endless loop.
- wire strands 26, 28 could be aHgned in parallel planes in a manner similar to that shown in Figure 4 and joined together at diametricaUy opposite locations with connectors 18 and 20, thereby defining module segments 14 and 16 of substantiaHy equal length.
- the next step in the manufacturing process involves f orming segments 14, 16 of each module 12 into a sinusoidal wave pattern while module 12 remains in a flattened configuration. As shown in Figure 4, this may be achieved by bending the wire strands 26, 28 comprising segments 14, 16 using a template having first and second sections 36 and 38. Each template section 36, 38 includes one or more protruding fingers 40. During the wire bending process, module 12 is supported on a pluraHty of spaced-apart cylindrical pins 39 which extend from a plate 41. When template segments 36, 38 are moved toward one another as shown in Figure 4, fingers 40 pass between stationary pins 39 to bend segments 14, 16 into a sinusoidal pattern comprising a pluraHty of peaks 43 and troughs 45.
- Pins 39 function as stoppers which define the peaks 43 in first segment 14 and troughs 45 in second segment 16.
- template sections 36, 38 and pins 39 are configured so that peaks 43 formed in segment 14 are aHgned with the troughs 45 of segment 16, and the troughs 45 formed in stent segment 14 are similarly aHgned with the peaks 43 of segment 16 ( Figure 4).
- the number of peaks and troughs 43, 45 formed during this wire bending process may vary and is not a critical feature of the invention (each wire strand 26, 28 of each element 14, 16 has at least one peak 43 or trough 45).
- FIG. 5 The method steps of Figure 4 yield a flattened stent module 12 as illustrated in Figure 5 having bent wire strands 26 and 28 which extend in substantiaUy paraUel planes.
- a mandrel 42 having a tapered conical end 44 is inserted between wire strands 26 and 28 ( Figure 5) to form each segment 14, 16 into an annular shape defining cylindrical opening 17 ( Figure 2).
- stent 10 comprises a pluraHty of modules 12
- wire interconnection elements 22 may be secured to connectors 18, 20 on adjacent modules 12 during the manufacturing process to yield a flattened stent 10 as shown in Figure 6.
- connectors 18, 20 consist of small tubes
- an end portion of an interconnection element 22 may be inserted within one of the connectors 18, 20 before it is crimped.
- the other end of the interconnection element 22 may be sirrtilarly joined to a connector 18, 20 on another stent module 12 fabricated in accordance with the method steps iUustrated in Figure 4, and so on, to produce a stent 10 comprising a pluraHty of modules 12.
- stent 10 comprises a pluraHty of aHgned modules 12, then each of the modules 12 may be adjusted from the flattened configuration ( Figure 6) to the expanded configuration ( Figure 3) in a single step using mandrel 42. This will yield a cylindrical stent 10 as shown in Figure 3 where modules 12 share a common longitudinal axis.
- the appHcant's manufacturing method as iUustrated in Figures 4 and 5 and described above may be automated to decrease the cost of production.
- the method is reactily reproducible and is economical as compared to conventional stent maclrjiving techniques employing costly laser cutting, etching and welding equipment.
- One important advantage of the appHcant's method is that stent segments 14, 16 may be shaped into the desired sinusoidal pattern using inexpensive equipment whUe module 12 is in a flattened configuration ( Figure 4).
- stent 10 may comprise modules
- each module 12 arranged in diverging branches for supporting portions of blood vessels 4 or other body lumens which do not share a common axis. This can easUy be achieved by connecting each branching segment to one connector 18, 20 on opposite sides of a single Unking module 12.
- Figure 7 and 8 Ulustrate a further alternative embodiment of the invention wherein each module 12 is fabricated according to the method of Figure 4 from four separate flexible wire strands 26a, 26b, 28a and 28b. Hi order to adjust such a module 12 from the flattened configuration to the expanded configuration, a mandrel 42 may be passed between the innermost wire strands 26b and 28a.
- graft material 46 or other biocompatible substrates or barriers between respective pairs of wire strands 26a and 26b, and 28a and 28b.
- Such graft material 46 could be coated or impregnated, for example, with drugs for inhibiting restenosis or thrombosis.
- stent modules 12 have the added potential to function as a drug deHvery apparatus.
- OptionaUy graft material 46 may also be used as an endovascular prosthesis or a barrier for seaHng off aneurisms, thrombi, perforations or an entire vascular lesion.
- Graft material 46 may comprise one or more separate strips of material positionable side by side to extend between connectors 18, 20 around aU or part of the circumference of stent 10 (in Figure 8 a fragment of a single strip of graft material 46 is shown).
- modules 12 may be fabricated from six, eight or any other even number of wire strands of substantiaUy equal length to provide further opportunities to clamp graft material 46 therebetween.
- a stent 10 may be fabricated in accordance with the method steps described above and adjusted from its flattened configuration ( Figure 6) to its expanded configuration ( Figure 3). Stent 10 is then radiaUy compressed to be crimped on a deflated baUoon 6 of a catheter 8 for deHvery to a target site.
- the catheter 8 is inserted in a blood vessel or other body lumen of the patient undergoing treatment and carefuUy guided by the physician to the desired location whfle monitoring the procedure on a video screen.
- the catheter may be inserted into the femoral artery of the patient and progressively advanced into the iliac artery, ascending aorta and finaUy into a coronary artery. Since interconnection elements 22 permit each stent module 12 to flex relative to an adjacent module 12, stent 10 has sufficient longitudinal flexibiHty to faciUtate easy passage through tortuous blood vessels and the like.
- stent 10 exhibits exceUent radiopacity.
- connectors 18, 20 of each stent module 12 are radio-opaque and easUy visible to the physician during the stent deployment procedure using fluoroscopy. This ensures that the physician can accurately deHver stent 10 to the target site.
- baUoon 6 is cHlated causing stent 10 to expand until it contacts the vessel inner waU 9, as shown in Figure 1.
- Each module 12 is independently expandable for ease of deployment and to conform to the particular anatomy at the target site.
- a tapered baUoon 6 may be employed to match the shape of a target blood vessel or other lumen.
- baUoon 6 is deflated and removed from vessel 4 together with catheter 8 leaving stent 10 in place.
- stent 10 remains set in place, each stent module 12 radiaUy supporting a portion of the vessel inner waU 9.
- the provision of connectors 18, 20 on diametricaUy opposite sides of each module 12, and the sinusoidal waveform pattern of stent segments 14, 16, optimizes the radial strength and rigidity of stent 10 in the deployed position.
- graft material 46 may be deployed at the target site to provide further support for the vessel inner waU 9 and to serve as a substrate for the deHvery of drugs as described above.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002350810A CA2350810A1 (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
JP2000580542A JP2002529138A (en) | 1998-11-09 | 1999-04-30 | Expanded stent and method for manufacturing expanded stent |
EP99920465A EP1128783A1 (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
KR1020017005864A KR20020012533A (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
AU38040/99A AU3804099A (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
IL14304899A IL143048A0 (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
BR9915195-2A BR9915195A (en) | 1998-11-09 | 1999-04-30 | Stent module, stent, and, formation processes of a stent module and an elongated stent |
NO20012293A NO20012293L (en) | 1998-11-09 | 2001-05-09 | Expandable stent and method for making the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18811498A | 1998-11-09 | 1998-11-09 | |
US09/188,114 | 1998-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000027306A1 true WO2000027306A1 (en) | 2000-05-18 |
Family
ID=22691823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1999/000397 WO2000027306A1 (en) | 1998-11-09 | 1999-04-30 | Expandable stent and method for manufacturing same |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1128783A1 (en) |
JP (1) | JP2002529138A (en) |
KR (1) | KR20020012533A (en) |
CN (1) | CN1330530A (en) |
AU (1) | AU3804099A (en) |
CA (1) | CA2350810A1 (en) |
ID (1) | ID29394A (en) |
IL (1) | IL143048A0 (en) |
NO (1) | NO20012293L (en) |
TW (1) | TW418098B (en) |
WO (1) | WO2000027306A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002051335A1 (en) | 2000-12-27 | 2002-07-04 | Mivi Technologies Inc. | Implantable intravascular stent |
WO2006033790A1 (en) * | 2004-09-21 | 2006-03-30 | Scimed Life Systems, Inc | Atraumatic connections for multi-component stents |
DE102011015995A1 (en) * | 2011-04-04 | 2012-10-04 | Acandis Gmbh & Co. Kg | Medical device and method for producing such a device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9034028B2 (en) * | 2013-03-13 | 2015-05-19 | DePuy Synthes Products, Inc. | Braid expansion ring with markers |
CN108095858B (en) * | 2016-11-24 | 2020-08-21 | 先健科技(深圳)有限公司 | Anti-shortening covered stent and manufacturing method thereof |
CN117858685A (en) * | 2021-07-30 | 2024-04-09 | 微仙美国有限公司 | Stents with enhanced deployment characteristics |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0421729A2 (en) * | 1989-10-02 | 1991-04-10 | Medtronic, Inc. | Articulated stent |
US5135536A (en) * | 1991-02-05 | 1992-08-04 | Cordis Corporation | Endovascular stent and method |
US5389106A (en) * | 1993-10-29 | 1995-02-14 | Numed, Inc. | Impermeable expandable intravascular stent |
FR2735016A1 (en) * | 1995-06-09 | 1996-12-13 | Sgro Jean Claude | ENDO-LUMINAL IMPLANT |
WO1996041591A1 (en) * | 1995-06-08 | 1996-12-27 | Bard Galway Limited | Endovascular stent |
-
1999
- 1999-04-30 CA CA002350810A patent/CA2350810A1/en not_active Abandoned
- 1999-04-30 EP EP99920465A patent/EP1128783A1/en not_active Withdrawn
- 1999-04-30 WO PCT/CA1999/000397 patent/WO2000027306A1/en not_active Application Discontinuation
- 1999-04-30 AU AU38040/99A patent/AU3804099A/en not_active Abandoned
- 1999-04-30 CN CN99814374A patent/CN1330530A/en active Pending
- 1999-04-30 KR KR1020017005864A patent/KR20020012533A/en not_active Application Discontinuation
- 1999-04-30 JP JP2000580542A patent/JP2002529138A/en active Pending
- 1999-04-30 ID IDW00200101237A patent/ID29394A/en unknown
- 1999-04-30 IL IL14304899A patent/IL143048A0/en unknown
- 1999-11-17 TW TW088119462A patent/TW418098B/en not_active IP Right Cessation
-
2001
- 2001-05-09 NO NO20012293A patent/NO20012293L/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0421729A2 (en) * | 1989-10-02 | 1991-04-10 | Medtronic, Inc. | Articulated stent |
US5135536A (en) * | 1991-02-05 | 1992-08-04 | Cordis Corporation | Endovascular stent and method |
US5389106A (en) * | 1993-10-29 | 1995-02-14 | Numed, Inc. | Impermeable expandable intravascular stent |
WO1996041591A1 (en) * | 1995-06-08 | 1996-12-27 | Bard Galway Limited | Endovascular stent |
FR2735016A1 (en) * | 1995-06-09 | 1996-12-13 | Sgro Jean Claude | ENDO-LUMINAL IMPLANT |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002051335A1 (en) | 2000-12-27 | 2002-07-04 | Mivi Technologies Inc. | Implantable intravascular stent |
WO2006033790A1 (en) * | 2004-09-21 | 2006-03-30 | Scimed Life Systems, Inc | Atraumatic connections for multi-component stents |
US7695506B2 (en) | 2004-09-21 | 2010-04-13 | Boston Scientific Scimed, Inc. | Atraumatic connections for multi-component stents |
DE102011015995A1 (en) * | 2011-04-04 | 2012-10-04 | Acandis Gmbh & Co. Kg | Medical device and method for producing such a device |
DE102011015995B4 (en) | 2011-04-04 | 2021-08-05 | Acandis Gmbh | Medical device and method of making such a device |
Also Published As
Publication number | Publication date |
---|---|
EP1128783A1 (en) | 2001-09-05 |
AU3804099A (en) | 2000-05-29 |
CN1330530A (en) | 2002-01-09 |
NO20012293L (en) | 2001-06-27 |
TW418098B (en) | 2001-01-11 |
JP2002529138A (en) | 2002-09-10 |
IL143048A0 (en) | 2002-04-21 |
ID29394A (en) | 2001-08-30 |
CA2350810A1 (en) | 2000-05-18 |
KR20020012533A (en) | 2002-02-16 |
NO20012293D0 (en) | 2001-05-09 |
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