CA2347024A1 - Method for making tubing - Google Patents
Method for making tubingInfo
- Publication number
- CA2347024A1 CA2347024A1 CA002347024A CA2347024A CA2347024A1 CA 2347024 A1 CA2347024 A1 CA 2347024A1 CA 002347024 A CA002347024 A CA 002347024A CA 2347024 A CA2347024 A CA 2347024A CA 2347024 A1 CA2347024 A1 CA 2347024A1
- Authority
- CA
- Canada
- Prior art keywords
- tubing
- section
- stiff
- produce
- materials
- 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.)
- Granted
Links
Abstract
A method for making differential stiffness tubing for medical products, such as catheters. The method produces a tubing that has a stiff section and a flexible section joined by a relatively short transition section in which the materials of the stiff and flexible sections are wedged into each other in a smooth gradual manner to produce an inseparable bond between the materials without abrupt joints. The method also employs a resin modulating system that minimizes the length of the transition section by minimizing the volumes in all flow channels of the co- extrusion head used to produce the tubing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/230,333 US5533985A (en) | 1994-04-20 | 1994-04-20 | Tubing |
| US08/230,333 | 1994-04-20 | ||
| CA002188013A CA2188013C (en) | 1994-04-20 | 1995-04-03 | Tubing and method for making same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002188013A Division CA2188013C (en) | 1994-04-20 | 1995-04-03 | Tubing and method for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2347024A1 true CA2347024A1 (en) | 1995-11-02 |
| CA2347024C CA2347024C (en) | 2004-11-30 |
Family
ID=25678739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002347024A Expired - Lifetime CA2347024C (en) | 1994-04-20 | 1995-04-03 | Method for making tubing |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2347024C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075952A3 (en) * | 2003-02-26 | 2004-10-21 | Scimed Life Systems Inc | Balloon catheter |
| US7815628B2 (en) | 2003-08-21 | 2010-10-19 | Boston Scientific Scimed, Inc. | Multilayer medical devices |
| CN113543951A (en) * | 2019-03-05 | 2021-10-22 | 3M创新有限公司 | Coextruded multilayer article comprising continuous and discontinuous layers |
-
1995
- 1995-04-03 CA CA002347024A patent/CA2347024C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075952A3 (en) * | 2003-02-26 | 2004-10-21 | Scimed Life Systems Inc | Balloon catheter |
| US7815628B2 (en) | 2003-08-21 | 2010-10-19 | Boston Scientific Scimed, Inc. | Multilayer medical devices |
| CN113543951A (en) * | 2019-03-05 | 2021-10-22 | 3M创新有限公司 | Coextruded multilayer article comprising continuous and discontinuous layers |
| US11618237B2 (en) | 2019-03-05 | 2023-04-04 | 3M Innovative Properties Company | Co-extruded multilayer articles including continuous layer and discontinuous layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2347024C (en) | 2004-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20150407 |