WO2004084764A2 - Endoluminal stent having mid-interconnecting members - Google Patents
Endoluminal stent having mid-interconnecting members Download PDFInfo
- Publication number
- WO2004084764A2 WO2004084764A2 PCT/US2004/008247 US2004008247W WO2004084764A2 WO 2004084764 A2 WO2004084764 A2 WO 2004084764A2 US 2004008247 W US2004008247 W US 2004008247W WO 2004084764 A2 WO2004084764 A2 WO 2004084764A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- interconnecting
- endoluminal stent
- elements
- generally
- 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
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91583—Adjacent bands being connected to each other by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
-
- 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
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
Definitions
- each generally U-shaped hinge element 22 that connects adjacent struts along each circumferential expansion member 12.
- W h width of the struts 1 to which it is connected.
- the strain-relief sections 18 and 20 each have a generally C-shaped configuration and traverse a radius in connecting the interconnection member 14 with the struts 16 of adjacent circumferential expansion members 12.
- Alternate geometric configurations of the C-shaped terminal strain- relief sections 18 and 20 are also contemplated by the present invention, such as S- shaped, V-shaped, M-shaped, W-shaped, U-shaped, or merely generally I-shaped extensions projecting co-axially along the longitudinal axis of each interconnecting member 14.
- stent 40 is illustrated and has a substantially identical configuration of circumferential expansion elements 12 and interconnecting elements 14, except that instead of employing a 2:1 ratio of peaks 12p or trough's 12t to interconnecting elements, stent 40 employs a 3:1 ratio, such that each circumferential expansion element 12a-12i has six peaks 12p and six troughs 12t, but adjacent pairs of circumferential elements 12 are interconnected by only two intercomrecting elements 14, Like stent 30, the interconnecting elements of a first circumferential expansion element pair are circumferentially offset from the interconnecting elements of a second adjacent circumferential expansion element pair, except in stent 40, the offset is either one peak 12p and two troughs 12t or two peaks 12p and one trough 12t.
- Figure 9 depicts stent 40 in virtually its fully radially expanded enlarged diameter, with just a proximal section of the stent 40 be constrained in the constraining sheath (not pictured).
- Figure 6 is an enlarged section of the stent 40 illustrating the mid-strut connection between the circumferential expansion element 12 and the interconnecting element 14 at the proximal and distal strain relief sections 18 and 20, and clearly showing the generally U-shaped hinge elements 22 a the peaks 12p and troughs 12t of each circumferential expansion element 12.
- Vapor deposition fabrication of the inventive endoluminal stents offers many advantages, including, for example, the ability to fabricate stents of complex geometries, ultrafine dimensional tolerances on the order of Angstroms, the ability to control fatigue life, corrosion resistance, corrosion fatigue, inter- and intra-granular precipitates and their effect on corrosion resistance and corrosion fatigue, bulk material composition, bulk and surface material properties, radioopacity, and the ability to vary the transverse profiles, Z-axis thickness and X-Y-axis surface area of the stent structural elements in manners that affect the longitudinal flexibility, hoop strength, and radial expansion behavior and profile of the stent.
- Bulk material composition may be adjusted to employ elemental fractions in alloy compositions that are not feasible when using conventionally formed metals.
- Vapor deposition of the inventive endoluminal stent significantly reduces or virtually eliminates inter- and intra-granular precipitates in the bulk material. It is common practice in the ckel-titanium endoluminal device industry to control transition temperatures and resulting mechanical properties by altering local granular nickel- titanium ratios by precipitation regimens. In the present invention, the need to control precipitates for mechanical properties is eliminated. Where nickel-titanium is employed as the stent-forming metal in the present invention, local nickel-titanium ratios will be the same or virtually identical to the nickel-titanium ratios in the bulk material, while still allowing for optimal morphology and eliminating the need for employing precipitation heat treatment. The resulting deposited stent-forming metal exhibits superior corrosion resistance, and hence, resistance to corrosion fatigue, when compared to conventional wrought nickel-titanium alloys.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA05009823A MXPA05009823A (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-interconnecting members. |
EP10185232.5A EP2289464B1 (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-interconnecting members |
AU2004224415A AU2004224415B2 (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-interconnecting members |
DE602004030671T DE602004030671D1 (en) | 2003-03-19 | 2004-03-18 | ENDOLUMINAL STENT WITH MEDIUM CONNECTING MEMBERS |
JP2006507303A JP5021298B2 (en) | 2003-03-19 | 2004-03-18 | Lumen stent with intermediate strut interconnection member |
AT04757798T ATE492246T1 (en) | 2003-03-19 | 2004-03-18 | ENDOLUMINAL STENT WITH CENTER CONNECTING LINKS |
EP04757798A EP1610724B1 (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-interconnecting members |
CA2519226A CA2519226C (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-strut interconnecting members |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45578303P | 2003-03-19 | 2003-03-19 | |
US60/455,783 | 2003-03-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004084764A2 true WO2004084764A2 (en) | 2004-10-07 |
WO2004084764A3 WO2004084764A3 (en) | 2005-05-19 |
Family
ID=34572701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/008247 WO2004084764A2 (en) | 2003-03-19 | 2004-03-18 | Endoluminal stent having mid-interconnecting members |
Country Status (10)
Country | Link |
---|---|
US (2) | US7122049B2 (en) |
EP (2) | EP2289464B1 (en) |
JP (1) | JP5021298B2 (en) |
CN (1) | CN100558320C (en) |
AT (1) | ATE492246T1 (en) |
AU (1) | AU2004224415B2 (en) |
CA (1) | CA2519226C (en) |
DE (1) | DE602004030671D1 (en) |
MX (1) | MXPA05009823A (en) |
WO (1) | WO2004084764A2 (en) |
Cited By (2)
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WO2016110875A1 (en) * | 2015-01-07 | 2016-07-14 | Sahajanand Medical Technologies Private Limited | Endoluminal stent |
US11865022B2 (en) | 2015-10-27 | 2024-01-09 | Contego Medical, Inc. | Transluminal angioplasty devices and methods of use |
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AU2004224415A1 (en) | 2004-10-07 |
CN1787793A (en) | 2006-06-14 |
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US7122049B2 (en) | 2006-10-17 |
EP2289464A1 (en) | 2011-03-02 |
MXPA05009823A (en) | 2006-03-13 |
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WO2004084764A3 (en) | 2005-05-19 |
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US7980289B2 (en) | 2011-07-19 |
CA2519226A1 (en) | 2004-10-07 |
EP2289464B1 (en) | 2018-08-01 |
AU2004224415B2 (en) | 2011-07-14 |
JP2006520648A (en) | 2006-09-14 |
CN100558320C (en) | 2009-11-11 |
EP1610724B1 (en) | 2010-12-22 |
US20040186554A1 (en) | 2004-09-23 |
EP1610724A4 (en) | 2007-06-13 |
ATE492246T1 (en) | 2011-01-15 |
JP5021298B2 (en) | 2012-09-05 |
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