Exchangeable delivery system with distal protection

• US 20060229702A1
• Filed: 03/24/2006
• Published: 10/12/2006
• Est. Priority Date: 03/24/2005
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Agnew, Charles W.
• Granted Patent: US 7,736,385 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/015 Stop means therefor
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0069 cylindrical

Abstract

Medical device delivery systems that include a distal protection feature are provided. A distal tip member that includes a distal protection device and a mounting region for a self-expandable, intraluminal medical device is slidably disposed within a passageway defined by a tubular member.

Claims

1. A medical device delivery system comprising:

an elongate tubular member comprising a circumferential wall and having first proximal and distal ends, the elongate tubular member defining a passageway extending between the first proximal and distal ends and having a protrusion disposed on an inner surface at the distal end;

a distal tip member slidably disposed within the first passageway and having proximal and distal portions, the proximal portion defining a mounting region;

a distal protection device disposed on the distal portion of the distal tip member; and

a self-expandable intraluminal medical device disposed on the mounting region of the distal tip member.

2. The medical device delivery system according to claim 1, wherein the proximal portion includes second proximal and distal ends and the distal tip member includes a proximal flange disposed on the second proximal end and adapted to engage the protrusion.

3. The medical device delivery system according to claim 2, further comprising a distal flange disposed on the second distal end, the distal flange adapted to temporarily engage the protrusion.

4. The medical device delivery system according to claim 3, wherein the distal flange comprises a pliable material.

5. The medical device delivery system according to claim 3, wherein the proximal flange comprises a rigid material.

6. The medical device delivery system according to claim 3, wherein the proximal and distal portions comprise separate members.

7. The medical device delivery system according to claim 6, wherein the distal tip member further comprises a separable junction joining the proximal and distal portions.

8. The medical device delivery system according to claim 7, wherein the separable junction comprises at least one barb disposed on the distal portion and at least one cavity adapted to receive the at least one barb.

9. The medical device delivery system according to claim 8, wherein the at least one cavity is formed in the second distal end.

10. The medical device delivery system according to claim 8, wherein the at least one cavity is formed in the distal flange.

11. The medical device delivery system according to claim 1, wherein the circumferential wall member defines an exchange port extending through the circumferential wall and providing access to the passageway.

12. The medical device delivery system according to claim 1, wherein the self-expandable intraluminal medical device comprises a stent.

13. The medical device delivery system according to claim 1, wherein the self-expandable intraluminal medical device comprises a prosthetic valve.

14. A medical device delivery system, comprising:

an elongate tubular member comprising a proximal end, a distal end, and a circumferential wall extending between the proximal and distal ends and defining an exchange port, the elongate tubular member defining a distal cavity and a wireguide lumen extending between the exchange port and the distal end, the elongate tubular member having a protrusion disposed on an inner surface at the distal end;

a distal tip member slidably disposed within the distal cavity and having proximal and distal portions, the proximal portion defining a mounting region;

a distal protection device disposed on the distal portion of the distal tip member; and

a self-expandable intraluminal medical device disposed on the mounting region of the distal tip member.

15. The medical device delivery system according to claim 14, wherein the proximal portion includes second proximal and distal ends and the distal tip member includes a proximal flange disposed on the second proximal end and adapted to engage the protrusion.

16. The medical device delivery system according to claim 15, further comprising a distal flange disposed on the second distal end, the distal flange adapted to temporarily engage the protrusion.

17. The medical device delivery system according to claim 16, wherein the proximal and distal portions comprise separate members.

18. The medical device delivery system according to claim 17, wherein the distal tip member further comprises a separable junction joining the proximal and distal portions.

19. The medical device delivery system according to claim 14, wherein the self-expandable intraluminal medical device comprises a stent.

20. The medical device delivery system according to claim 14, wherein the self-expandable intraluminal medical device comprises a prosthetic valve.

21. A medical device delivery system, comprising:

an elongate tubular member comprising a proximal end, a distal end, and a circumferential wall extending between the proximal and distal ends, the elongate tubular member defining an exchange port, a wireguide lumen extending between the exchange port and the distal end, a distal cavity, and having a protrusion disposed on an inner surface at the distal end;

a distal tip member slidably disposed within the distal cavity and having separable proximal and distal portions, the proximal portion including second proximal and distal ends and defining a mounting region between the second proximal and distal ends;

a distal flange disposed on the second distal end and adapted to temporarily engage the protrusion;

a proximal flange disposed on the second proximal end and adapted to engage the protrusion to substantially prevent distally directed axial movement of the distal tip member;

a distal protection device disposed on the distal portion of the distal tip member; and

a self-expandable intraluminal medical device disposed on the mounting region of the distal tip member.

22. The medical device delivery system according to claim 21, wherein the self-expandable intraluminal medical device comprises a stent.

23. The medical device delivery system according to claim 21, wherein the self-expandable intraluminal medical device comprises a prosthetic valve.