Medical device delivery systems

• US 20050228478A1
• Filed: 04/07/2005
• Published: 10/13/2005
• Est. Priority Date: 04/09/2004
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Heidner, Matthew C.
• Granted Patent: US 9,066,826 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9583 Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

Medical device delivery systems, and related methods and components, are disclosed.

Claims

1. A medical endoprosthesis delivery system, comprising:

an inner member having an outwardly extending portion; and

an outer member at least partially surrounding the inner member, the inner and the outer members being configured so that an implantable medical endoprosthesis can be disposed between the inner and outer members,

wherein the outwardly extending portion of the inner member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members, the outwardly extending portion of the inner member can be at least partially disposed over the implantable medical endoprosthesis and can interdigitate with an opening of the implantable medical endoprosthesis.

2. The medical endoprosthesis delivery system of claim 1, wherein the outwardly extending portion of the inner member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members, the outwardly extending portion of the inner member substantially prevents the implantable medical endoprosthesis from moving distally with respect to the inner member.

3. The medical endoprosthesis delivery system of claim 1, wherein the outwardly extending portion of the inner member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members and the outer member is moved proximally over a distal portion of the implantable medical endoprosthesis, the outwardly extending portion of the inner member substantially prevents the implantable medical endoprosthesis from moving distally with respect to the inner member.

4. The medical endoprosthesis delivery system of claim 1, wherein the outwardly extending portion of the inner member has a first portion that is proximal of a distal end of the implantable medical endoprosthesis.

5. The medical endoprosthesis delivery system of claim 4, wherein the first portion of the outwardly extending portion of the inner member is proximal of a proximal end of the implantable medical endoprosthesis.

6. The medical endoprosthesis delivery system of claim 4, wherein the outwardly extending portion of the inner member has a second portion that is distal of a proximal end of the implantable medical endoprosthesis.

7. The medical endoprosthesis delivery system of claim 6, wherein the second portion of the outwardly extending portion of the inner member is proximal of a distal end of the implantable medical endoprosthesis.

8. The medical endoprosthesis delivery system of claim 6, wherein the second portion interdigitates with the opening in the implantable medical endoprosthesis.

9. The medical endoprosthesis delivery system of claim 6, wherein the outwardly extending portion of the inner member has a third portion that is partially disposed over the implantable medical endoprosthesis.

10. The medical endoprosthesis delivery system of claim 9, wherein the third portion is between the first and second portions.

11. The medical endoprosthesis delivery system of claim 1, wherein the inner member further includes a bumper.

12. The medical endoprosthesis delivery system of claim 11, wherein the bumper of the inner member is proximal of the outwardly extending portion of the inner member.

13. The medical endoprosthesis delivery system of claim 1, further comprising the implantable medical endoprosthesis between the inner and outer members.

14. The medical endoprosthesis delivery system of claim 13, wherein the outwardly extending portion of the inner member is at least partially disposed over the implantable medical endoprosthesis and interdigitates with the opening of the implantable medical endoprosthesis.

15. The medical endoprosthesis delivery system of claim 1, wherein the outwardiy extending portion is formed of a material that changes shape when exposed to an electric current.

30. A method of treating a lumen within a subject, the method comprising:

at least partially inserting the system of claim 1 into the lumen.

31. The method of claim 30, further comprising moving the outer member proximally.

16. A catheter having an outwardly extending portion, the outwardly extending portion being configured so that it can be at least partially disposed over an implantable medical endoprosthesis and interdigitate with an opening of the implantable medical endoprosthesis.

17. The catheter of claim 16, wherein the outwardly extending portion of the catheter is configured so that it can substantially prevent movement of the implantable medical endoprosthesis with respect to the bumper.

18. The catheter of claim 16, wherein the catheter is configured so that it can be used as an outer member in a medical endoprosthesis delivery system.

32. A method of treating a lumen within a subject, the method comprising:

at least partially inserting the system of claim 18 into the lumen.

33. The method of claim 32, further comprising moving the outer member proximally.

19. A medical endoprosthesis delivery system, comprising:

an inner member; and

an outer member having an inwardly extending portion, the outer member at least partially surrounding the inner member, the inner and outer members being configured so that an implantable medical endoprosthesis can be disposed between the inner and outer members,

wherein the inwardly extending portion of the outer member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members, the inwardly extending portion of the outer member can interdigitate with an opening of the implantable medical endoprosthesis.

20. The medical endoprosthesis delivery system of claim 19, wherein the inwardly extending portion of the outer member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members, the inwardly extending portion of the outer member substantially prevents the implantable medical endoprosthesis from moving distally with respect to the inner member.

21. The medical endoprosthesis delivery system of claim 19, wherein the inwardly extending portion of the outer member is configured so that, when the implantable medical endoprosthesis is disposed between the inner and outer members and the outer member is moved proximally over a distal portion of the implantable medical endoprosthesis, the inwardly extending portion of the outer member substantially prevents the implantable medical endoprosthesis from moving distally with respect to the inner member.

22. The medical endoprosthesis delivery system of claim 19, wherein the inwardly extending portion of the outer member is distal of a distal end of the implantable medical endoprosthesis.

23. The medical endoprosthesis delivery system of claim 19, further comprising the implantable medical endoprosthesis between the inner and outer members.

24. The medical endoprosthesis delivery system of claim 23, wherein the inwardly extending portion of the outer member partially surrounds the implantable medical endoprosthesis and interdigitates with the opening of the implantable medical endoprosthesis.

25. The medical endoprosthesis delivery system of claim 19, wherein the inwardly extending portion is inflatable.

26. The medical endoprosthesis delivery system of claim 19, wherein the inwardly extending portion is formed of a material that changes shape when exposed to an electric current.

27. A catheter having inwardly extending portion, the inwardly extending portion being configured so that it can be at least partially disposed over an implantable medical endoprosthesis and interdigitate with an opening of the implantable medical endoprosthesis.

28. The catheter of claim 27, wherein the inwardly extending portion of the catheter is configured so that it can substantially prevent movement of the implantable medical endoprosthesis along a longitudinal direction of the inner member.

29. The catheter of claim 27, wherein the catheter is configured so that it can be used as an outer member in a medical endoprosthesis delivery system.