CA2537988C - Non-foreshortening intraluminal prosthesis - Google Patents
Non-foreshortening intraluminal prosthesis Download PDFInfo
- Publication number
- CA2537988C CA2537988C CA 2537988 CA2537988A CA2537988C CA 2537988 C CA2537988 C CA 2537988C CA 2537988 CA2537988 CA 2537988 CA 2537988 A CA2537988 A CA 2537988A CA 2537988 C CA2537988 C CA 2537988C
- Authority
- CA
- Canada
- Prior art keywords
- tube
- shape memory
- expanded state
- step includes
- setting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Laser Beam Processing (AREA)
Abstract
An intraluminal prosthesis (40) is provided with a plurality of annular elements. Each annular element includes a plurality of struts (42, 44) and apices (46) connected to form an annular configuration. Each annular element has a compressed state and an expanded state, and has a longitudinal dimension which is smaller in the expanded state than in the compressed state. A plurality of connecting members (48) connect the apices of adjacent annular elements. The connecting members have a plurality of alternating segments that function to compensate for the smaller longitudinal dimension of each annular element in the expanded state. The stent may be provided with varying flexibility along its length and/or circumference, and may include segments that have different diameters.
Claims (13)
1. A method of making a stent, comprising:
a) providing a tube in a compressed state, the tube being made of a shape memory material;
b) cutting patterns to form a patterned tube having:
b1. a plurality of annular elements;
b2. a first segment and a second segment that have different diameters when the tube is in the expanded state; and b4. wherein the length of the tube remains the same in both the compressed and expanded states;
c) expanding the tube until the tube reaches an expanded state;
d) setting the shape memory of the tube in the expanded state; and e) compressing the tube to the compressed state.
a) providing a tube in a compressed state, the tube being made of a shape memory material;
b) cutting patterns to form a patterned tube having:
b1. a plurality of annular elements;
b2. a first segment and a second segment that have different diameters when the tube is in the expanded state; and b4. wherein the length of the tube remains the same in both the compressed and expanded states;
c) expanding the tube until the tube reaches an expanded state;
d) setting the shape memory of the tube in the expanded state; and e) compressing the tube to the compressed state.
2. The method of claim 1, wherein the compressing step includes the step of cooling the tube.
3. The method of claim 1, wherein the cutting step is accomplished by a laser cutter that is controlled by a program in a computer.
4. The method of claim 1, wherein the setting step includes the step of heat-setting the shape memory of the tube.
5. The method of claim 1, further including providing the shape memory material in the form of Nitinol.
6. The method of claim 1, wherein the expanding step includes the step of consistently maintaining the overall length of the tube throughout the expanding step.
7. The method of claim 1, wherein the cutting step includes controlling of the outside diameter of the tube.
8. The method of claim 1, wherein the cutting step includes controlling the wall thickness of the tube.
9. A method of making a stent, comprising:
a) providing a tube in a compressed state, the tube being made of a shape memory material;
b) cutting patterns to form a patterned tube having:
b1. a plurality of annular elements comprising a plurality of alternating struts and apices connected to each other to form a substantially annular configuration;
b2. connecting members connected to the apices of the adjacent annular members; and b3. a first segment and a second segment that have different diameters when the tube is in the expanded state;
c) expanding the tube until the tube reaches an expanded state;
d) setting the shape memory of the tube in the expanded state; and e) compressing the tube to the compressed state.
a) providing a tube in a compressed state, the tube being made of a shape memory material;
b) cutting patterns to form a patterned tube having:
b1. a plurality of annular elements comprising a plurality of alternating struts and apices connected to each other to form a substantially annular configuration;
b2. connecting members connected to the apices of the adjacent annular members; and b3. a first segment and a second segment that have different diameters when the tube is in the expanded state;
c) expanding the tube until the tube reaches an expanded state;
d) setting the shape memory of the tube in the expanded state; and e) compressing the tube to the compressed state.
10. The method of claim 9, wherein the compressing step includes the step of cooling the tube.
11. The method of claim 9, wherein the cutting step is accomplished by a laser cutter that is controlled by a program in a computer.
12. The method of claim 9, wherein the setting step includes the step of heat-selling the shape memory of the tube.
13. The method of claim 9, further including providing the shape memory material in the form of Nitinol.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/797,814 US5827321A (en) | 1997-02-07 | 1997-02-07 | Non-Foreshortening intraluminal prosthesis |
| US08/797,814 | 1997-02-07 | ||
| CA002280131A CA2280131C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002280131A Division CA2280131C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2537988A1 CA2537988A1 (en) | 1998-08-13 |
| CA2537988C true CA2537988C (en) | 2008-10-14 |
Family
ID=36177527
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2537988 Expired - Fee Related CA2537988C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
| CA 2537990 Expired - Fee Related CA2537990C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
| CA 2537983 Abandoned CA2537983A1 (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
| CA 2538001 Expired - Fee Related CA2538001C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2537990 Expired - Fee Related CA2537990C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
| CA 2537983 Abandoned CA2537983A1 (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
| CA 2538001 Expired - Fee Related CA2538001C (en) | 1997-02-07 | 1998-02-04 | Non-foreshortening intraluminal prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CA (4) | CA2537988C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1799151A4 (en) * | 2004-09-15 | 2014-09-17 | Conor Medsystems Inc | VASCULAR STENT FOR BIFURCATION, WITH SCRATCHABLE END, AND METHOD FOR PLACING VASCULAR STENT AT BIFURCATION LEVEL |
-
1998
- 1998-02-04 CA CA 2537988 patent/CA2537988C/en not_active Expired - Fee Related
- 1998-02-04 CA CA 2537990 patent/CA2537990C/en not_active Expired - Fee Related
- 1998-02-04 CA CA 2537983 patent/CA2537983A1/en not_active Abandoned
- 1998-02-04 CA CA 2538001 patent/CA2538001C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2537988A1 (en) | 1998-08-13 |
| CA2537983A1 (en) | 1998-08-13 |
| CA2537990C (en) | 2008-10-14 |
| CA2538001C (en) | 2008-09-30 |
| CA2538001A1 (en) | 1998-08-13 |
| CA2537990A1 (en) | 1998-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180205 |