IE990253A1 - Improvements in and relating to stents - Google Patents
Improvements in and relating to stentsInfo
- Publication number
- IE990253A1 IE990253A1 IE990253A IE990253A IE990253A1 IE 990253 A1 IE990253 A1 IE 990253A1 IE 990253 A IE990253 A IE 990253A IE 990253 A IE990253 A IE 990253A IE 990253 A1 IE990253 A1 IE 990253A1
- Authority
- IE
- Ireland
- Prior art keywords
- implant
- stent
- cuff
- support structure
- sleeve
- Prior art date
Links
- 239000007943 implant Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims 1
- 238000012282 endovascular technique Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000012781 shape memory material Substances 0.000 claims 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001000 nickel titanium Inorganic materials 0.000 abstract description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
An implant (1,10,12,15,17,19,30,34,37,40,50) comprises a support (2) structure and a transition tissue bridge material (3) of porous plastic open cell structure for bedding the implant into the surrounding tissue. The support structure (2) may be a stent (1) of expansible or self expandable material such as nitinol. The transition tissue bridge may be in the form of one or more cuffs (3) mounted on the support structure (2).
Description
"Improvements in and relating to implants" An implant (1,10,12,15,17,19,30,34,37,40,50) comprises a support (2) structure and a transition tissue bridge material (3) of porous plastic open cell structure for bedding the implant into the surrounding tissue. The support structure (2) may be a stent (1) of expansible or self expandable material such as nitinol. The transition tissue bridge may be in the form of one or more cuffs (3) mounted on the support structure (2). -1 "Improvements in and relating to implants" The invention relates to implants and especially to stents, particularly for use in the treatment of aneurysmal disease. -t> co Lb i I i Ϊ
Claims (36)
1. An implant comprising a support structure and transition material mounted thereto to provide a transition bridge between the support structure and surrounding tissue, the transition material being a porous plastics material of open cell structure.
2. An implant as claimed in claim 1 wherein the porous plastics is a compressible foam.
3. An implant as claimed in any preceding claim wherein the support structure is a relatively soft support structure and the transition bridge material is a relatively rigid porous plastics material.
4. An implant as claimed in claim 1 or 2 wherein the support structure is a relatively hard support structure and the transition bridge material is a relatively soft porous plastics material.
5. An implant as claimed in claim 1 or 2 wherein the support structure is of intermediate stiffness and the transition bridge material is also of intermediate stiffness.
6. An implant as claimed in any preceding claim wherein the support structure is a stent.
7. An implant as claimed in claim 6 wherein the stent is a self expanding stent of a shape memory material.
8. An implant as claimed in claim 6 wherein the stent is a balloon-expansible stent. - 139.
9.An implant as claimed in any preceding claim wherein the transition bridge includes a resilient cuff of porous plastics material of open cell structure. 5
10. An implant as claimed in claim 9. In which the cuff extends around the periphery of the support structure.
11. An implant as claimed in claim 9 or 10 in which the cuff is adjacent an open end of the support structure.
12. An implant as claimed in claim 9 or 10 wherein a pair of cuffs are provided, mounted at each end of the support structure.
13. An implant as claimed in claim 9, 10 or 12 in which the cuff extends along 15 all the support structure.
14. An implant as claimed in any of claims 9 to 13 wherein the cuff extends beyond the periphery of the support structure. 20
15. An implant as claimed in claim 14 wherein the portion of the cuff that extends beyond the periphery of the support structure includes an anchoring/tissue keying means.
16. An implant as claimed in any preceding claim including keying means for 25 keying the implant to surrounding tissue.
17. An implant as claimed in claim 15 or 16 in which the keying means comprises a plurality of protuberances which protrude outwardly through the transition bridge material. - 1418.
18.An implant as claimed in any of claims 15 to 17 wherein the keying means comprises a plurality of keying slots.
19. An implant as claimed in any of claims 16 to 18 wherein the keying means 5 is provided on the support structure.
20. An implant as claimed in any of claims 15 to 19 wherein the keying means is provided on the transition bridge. 10.
21. An implant as claimed in any of claims 6 to 20 wherein the implant is a stent for endovascular techniques of the type comprising a radially expandable sleeve for mounting in an arterial passageway, a resilient cuff of porous plastics material of open cell structure being mounted on the sleeve.
22. A stent as claimed in claim 21 in which the cuff extends around the periphery of the sleeve.
23. A stent as claimed in claim 21 or 22 in which the cuff is adjacent an open 20 end of the sleeve.
24. A stent as claimed in claim 21 or 22 wherein a pair of cuffs are provided, mounted at each end of the sleeve.
25. A stent as claimed in any of claims 21 to 24 in which the cuff extends along all the sleeve.
26. A stent as claimed in any of claims 21 to 25 wherein the cuff extends beyond the periphery of the sleeve. -1527.
27.A stent as claimed in claim 26 wherein the portion of the cuff that extends beyond the periphery of the support structure includes a keying means.
28. A stent as claimed in any of claims 21 to 27 including keying means for 5 keying the stent to the surrounding tissue.
29. A stent as claimed in any of claims 21 to 28 wherein the outer surface of the sleeve has a plurality of protuberances formed thereon which protrude outwardly through the cuff.
30. A stent as claimed in any of claims 21 to 29 in which the outer surface of the or each cuff has a plurality of slots formed therein.
31. A stent as claimed in any of claims 21 to 30 in which the end surface of the 11. 15 or each cuff has a plurality of annular slots cut therein.
32. A stent as claimed in any of claims 21 to 31 in which the or each cuff has a plurality of internal voids. 12. 20
33. A stent as claimed in any of claims 21 to 32 in which the outside diameter of the or each cuff varies along its length.
34. A stent as claimed in any of claims 21 to 33 having a side opening in a sidewall of the sleeve, a sealing cuff being mounted at said opening.
35. A stent substantially as hereinbefore described with reference to the accompanying drawings.
36. An implant substantially as hereinbefore described with reference to the 30 accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IE990253A IE990253A1 (en) | 1998-04-02 | 1999-03-31 | Improvements in and relating to stents |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IE980243 | 1998-04-02 | ||
| IE990253A IE990253A1 (en) | 1998-04-02 | 1999-03-31 | Improvements in and relating to stents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IE990253A1 true IE990253A1 (en) | 2000-11-01 |
Family
ID=27624367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE990253A IE990253A1 (en) | 1998-04-02 | 1999-03-31 | Improvements in and relating to stents |
Country Status (1)
| Country | Link |
|---|---|
| IE (1) | IE990253A1 (en) |
-
1999
- 1999-03-31 IE IE990253A patent/IE990253A1/en not_active IP Right Cessation
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1067883A1 (en) | An implant comprising a support structure and a transition material made of porous plastics material | |
| AU2001276922A1 (en) | Self-expanding stent with enhanced radial expansion and shape memory | |
| CA2540830A1 (en) | Fenestrated stent grafts | |
| EP1031331A3 (en) | Expandable supportive branched endoluminal grafts | |
| EP1129673A3 (en) | Longitudinally flexible stent | |
| ATE314022T1 (en) | IMPLANTABLE INTRALUMINAL PROSTHESIS | |
| AU2001252659A1 (en) | Stent Holding member and Stent Delivery System | |
| EP0864302A3 (en) | Articulated expandable intraluminal stent | |
| WO2002094127A3 (en) | Longitudinally flexible stent | |
| CA2383501A1 (en) | Balloon yielded delivery system and endovascular graft design for easy deployment | |
| ATE242618T1 (en) | BALLOON EXPANDABLE COVERED STENT | |
| DE69920905D1 (en) | EXPANDABLE STENT WITH A SELF-EXPANDABLE SECTION | |
| ATE223181T1 (en) | STENT TRANSPLANT | |
| CA2234948A1 (en) | Expandable supportive bifurcated endoluminal grafts | |
| EP1970033A3 (en) | Improved longitudinally flexible expandable stent | |
| EP1163889A3 (en) | Improved longitudinally flexible expandable stent | |
| JPH0866480A (en) | Combination stent for artery | |
| WO2003030776A3 (en) | Heart valve prosthesis and method of its implantation | |
| CA2271698A1 (en) | Radially expandable stent for implanting in a body vessel | |
| CA2335333A1 (en) | Self expanding bifurcated endovascular prosthesis | |
| DE60042134D1 (en) | Implantable stent prosthesis | |
| WO2004082454A3 (en) | Endovascular implant with an at least sectional active coating made of radjadone and/or a ratjadone derivative | |
| WO2001070298A3 (en) | Method and apparatus for covering a stent | |
| WO2001028453A3 (en) | Low-profile, non-stented prosthesis for transluminal implantation | |
| WO2004091428A3 (en) | Stent for placement at luminal os |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM9A | Patent lapsed through non-payment of renewal fee |