WO1995031945B1 - Improved tissue supporting devices - Google Patents

Improved tissue supporting devices

Info

Publication number
WO1995031945B1
WO1995031945B1 PCT/US1995/006228 US9506228W WO9531945B1 WO 1995031945 B1 WO1995031945 B1 WO 1995031945B1 US 9506228 W US9506228 W US 9506228W WO 9531945 B1 WO9531945 B1 WO 9531945B1
Authority
WO
WIPO (PCT)
Prior art keywords
stent
alloy
diameter
niti
nitinol
Prior art date
Application number
PCT/US1995/006228
Other languages
French (fr)
Other versions
WO1995031945A1 (en
Filing date
Publication date
Application filed filed Critical
Priority to EP95920502A priority Critical patent/EP0759730B1/en
Priority to DE69507800T priority patent/DE69507800T2/en
Priority to CA002190012A priority patent/CA2190012C/en
Priority to US08/737,492 priority patent/US6582461B1/en
Priority to JP53041595A priority patent/JP4046760B2/en
Publication of WO1995031945A1 publication Critical patent/WO1995031945A1/en
Publication of WO1995031945B1 publication Critical patent/WO1995031945B1/en
Priority to US09/427,291 priority patent/US8221491B1/en
Priority to US10/443,231 priority patent/US20110184508A2/en

Links

Abstract

A new multiple component stent (10) which allows for initial self-expansion and subsequent deformation to a final enlarged size. In one embodiment, stent (10) comprises a first resilient element (12) and a second deformable element (14). In another embodiment, stent (30) is made of a first austenite component (32) and a second martensite component (34).

Claims

AMENDED CLAIMS
[received by the International Bureau on 28 December 1995 (28.12.95); new claims 22-30 added; remaining claims unchanged (1 page)]
deployment diameter smaller than the predetermined fabricated diameter and upon transformation of the austenite phase portion from martensite back to austenite to self-expand the stent back to the austenite phase portion predetermined fabricated diameter at temperatures in excess of the transition temperature of the austenite superelastic portion, the shape memory of the superelastic austenitic portion tending to form the austenitic portions of the stent to the fabricated diameter parent shape due to its shape memory, with the martensitic portions remaining in the deployment shape, additional recovery back toward the stent fabricated diameter parent shape can be assisted by an external force deforming the martensitic portion without slip deformation to an enlarged stent diameter beyond that of the self-expanded austenitic portion diameter, but not greater than the stent fabricated diameter parent shape.
22. The stent of claim 20 wherein the alloy is a NiTi nitinol alloy.
23. The stent of claim 22 wherein the alloy compositions is about 50Ni/50Ti atomic weight percent.
24. The stent of claim 20 wherein the alloy is a cold worked alloy.
25. The stent of claim 20 wherein the alloy is NiTi (nitinol).
26. The stent of claim 20 wherein the alloy is a prestrained alloy.
27. The stent of claim 26 wherein the alloy is NiTi (nitinol).
28. The stent of claim 20 wherein the alloy exhibits cycle amnesia.
29. The stent of claim 28 wherein the alloy is NiTi (nitinol).
30. The stent of claim 21 wherein the two phase portions comprise a single alloy.
PCT/US1995/006228 1994-05-19 1995-05-18 Improved tissue supporting devices WO1995031945A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP95920502A EP0759730B1 (en) 1994-05-19 1995-05-18 Improved tissue supporting devices
DE69507800T DE69507800T2 (en) 1994-05-19 1995-05-18 IMPROVED TISSUE SUPPORTS
CA002190012A CA2190012C (en) 1994-05-19 1995-05-18 Improved tissue supporting devices
US08/737,492 US6582461B1 (en) 1994-05-19 1995-05-18 Tissue supporting devices
JP53041595A JP4046760B2 (en) 1994-05-19 1995-05-18 Improved tissue support device
US09/427,291 US8221491B1 (en) 1994-05-19 1999-10-26 Tissue supporting devices
US10/443,231 US20110184508A2 (en) 1994-05-19 2003-05-21 Improved tissue supporting devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24632094A 1994-05-19 1994-05-19
US08/246,320 1994-05-19

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US24632094A Continuation-In-Part 1994-05-19 1994-05-19

Related Child Applications (4)

Application Number Title Priority Date Filing Date
US08/737,492 A-371-Of-International US6582461B1 (en) 1994-05-19 1995-05-18 Tissue supporting devices
US08737492 A-371-Of-International 1995-05-18
US09/172,590 Division US6451052B1 (en) 1994-05-19 1998-10-14 Tissue supporting devices
US09/427,291 Continuation US8221491B1 (en) 1994-05-19 1999-10-26 Tissue supporting devices

Publications (2)

Publication Number Publication Date
WO1995031945A1 WO1995031945A1 (en) 1995-11-30
WO1995031945B1 true WO1995031945B1 (en) 1996-02-01

Family

ID=22930175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/006228 WO1995031945A1 (en) 1994-05-19 1995-05-18 Improved tissue supporting devices

Country Status (8)

Country Link
US (4) US6582461B1 (en)
EP (1) EP0759730B1 (en)
JP (3) JP4046760B2 (en)
AT (1) ATE176587T1 (en)
CA (1) CA2190012C (en)
DE (1) DE69507800T2 (en)
ES (1) ES2126896T3 (en)
WO (1) WO1995031945A1 (en)

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