Catheter tip

• US 20050165382A1
• Filed: 03/21/2005
• Published: 07/28/2005
• Est. Priority Date: 10/04/2000
• Status: Abandoned Application

• Current Assignee: Biocompatibles Incorporated (Boston Scientific Corporation)
• Original Assignee: Biocompatibles Incorporated (Boston Scientific Corporation)
• Inventors: Fulford, Anthony
• Application Number:
  US11/084,253
• Publication Number:
  US 20050165382A1
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61M 25/001 Forming the tip of a catheter, e.g. bevelling process, join or taper
• CPC Class Codes: B29C 45/16 Making multilayered or multicoloured articles B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816
• CPC Class Codes: B29L 2031/7542 Catheters

Abstract

A tip for attachment, in use, to the distal end of a catheter for insertion into a body lumen. The tip comprises an attachment region. The attachment region is formed from a material selected to have at least one characteristic having a first parameter of a predetermined value to enable attachment of the tip in use. There is also a second region, connected to the attachment region. The second region is formed from a material selected to have the at least one characteristic defined by a second parameter value, the second parameter value being lower than the first parameter value.

Claims

1. A tip for attachment, in use, to the distal end of a catheter for insertion into a body lumen, the tip comprising:

an attachment region, the attachment region being formed from a material selected to have at least one characteristic having a first parameter of a predetermined value to enable attachment of the tip in use; and

a second region, connected to the attachment region, the second region being formed from a material selected to have the at least one characteristic defined by a second parameter value, the second parameter value being lower than the first parameter value.

2. A tip according to claim 1, wherein the at least one characteristic is hardness.

3. A tip according to claim 1 or claim 2, wherein the at least one characteristic is electromagnetic radiation transmitivity.

4. A tip according to claim 1 or claim 2, wherein the configuration of the tip is such that the two sections merge to form a boundary layer with one another at their join.

5. A tip according to claim 1 or claim 2, wherein that there is a distinct join between the two regions.

6. A tip according to claim 1 or claim 2, wherein the second region is formed from a plastics material such as a polyether block amide, polyurethane or a synthetic rubber.

7. A tip according to claim 6, wherein the plastics material also comprises a radiopaque filler.

8. A tip according to claim 6, wherein the second region plastics material is selected to have a value in the region of 80 to 90 Shore A hardness.

11. A tip according to claim 3, wherein the configuration of the tip is such that the two sections merge to form a boundary layer with one another at their join.

12. A tip according to claim 3, wherein that there is a distinct join between the two regions.

13. A tip according to claim 3, wherein the second region is formed from a plastics material such as a polyether block amide, polyurethane or a synthetic rubber.

14. A tip according to claim 4, wherein the second region is formed from a plastics material such as a polyether block amide, polyurethane or a synthetic rubber.

15. A tip according to claim 5, wherein the second region is formed from a plastics material such as a polyether block amide, polyurethane or a synthetic rubber.

16. A tip according to claim 13, wherein the second region plastics material is selected to have a value in the region of 80 to 90 Shore A hardness.

17. A tip according to claim 14, wherein the second region plastics material is selected to have a value in the region of 80 to 90 Shore A hardness.

18. A tip according to claim 15, wherein the second region plastics material is selected to have a value in the region of 80 to 90 Shore A hardness.

19. A tip according to claim 7, wherein the second region plastics material is selected to have a value in the region of 80 to 90 Shore A hardness.

9. (canceled)

10. (canceled)