IP Library › Granted Patent US 7,468,053
Granted Patent B2
US 7,468,053 · App. 11/525,296 · Granted Dec 23, 2008

Rapid exchange stent delivery system and associated components

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Quick Facts
Patent No.
US 7,468,053
App. No.
11/525,296
Granted
Dec 23, 2008
Kind
B2
Abstract

A rapid exchange stent delivery catheter includes an inner tubular member having a proximal portion, a distal portion, a stent holding portion located adjacent the distal portion of the inner member, and a guide wire lumen extending from a proximal guide wire opening disposed distal of the proximal portion of the inner member to a distal guide wire opening disposed at a distal end of the inner member. The proximal guide wire opening has a first length. An outer tubular member is slidably disposed about the inner member. The outer member has a proximal portion, a distal portion, and a guide wire opening disposed distal of the proximal portion of the outer member. The guide wire opening of the outer member has a second length that is shorter than the first length and a guide wire ramp extends into, and is movable along the first length.

Claims (41)

1. A medical device assembly, comprising:

a first tubular member, the first tubular member having a distal tip, a holding region for holding an expandable medical device thereon, and a first proximal region;

wherein a first opening is defined in the first tubular member adjacent to the holding region, the first opening having a first length;

a second tubular member slidably disposed over the first tubular member, the second tubular member including a distal end, a covering region, and a second proximal region;

wherein a second opening is defined in the second tubular member adjacent to the covering region, the second opening having a second length;

wherein the second tubular member includes a ramp that extends into the first opening; and

wherein the first length is longer than the second length.

2. The medical device assembly of claim 1 , wherein the first tubular member defines a lumen therein and wherein the ramp extends into and is moveable within the lumen.

3. The medical device assembly of claim 1 , wherein the expandable medical device includes a stent.

4. The medical device assembly of claim 1 , further comprising a stent disposed on the holding region.

5. The medical device assembly of claim 1 , wherein the distal tip of the first tubular member restricts longitudinal movement of the second tubular member relative to the first tubular member.

6. The medical device assembly of claim 1 , further comprising a holding sleeve coupled to the holding region.

7. The medical device assembly of claim 1 , further comprising a stent cup coupled to the holding region.

8. A medical device assembly, comprising:

a first tubular member, the first tubular member having a distal tip, a holding region for holding an expandable medical device thereon, and a first proximal region;

wherein a first opening is defined in the first tubular member adjacent to the holding region;

a second tubular member slidably disposed over the first tubular member, the second tubular member including a distal end, a covering region, and a second proximal region;

wherein a second opening is defined in the second tubular member adjacent to the covering region; and

wherein the second tubular member includes a ramp that extends into the first opening.

9. The medical device assembly of claim 8 , wherein the first tubular member defines a lumen therein and wherein the ramp extends into and is moveable within the lumen.

10. The medical device assembly of claim 8 , wherein the expandable medical device includes a stent.

11. The medical device assembly of claim 8 , further comprising a stent disposed on the holding region.

12. The medical device assembly of claim 8 , wherein the distal tip of the first tubular member restricts longitudinal movement of the second tubular member relative to the first tubular member.

13. The medical device assembly of claim 8 , further comprising a holding sleeve coupled to the holding region.

14. The medical device assembly of claim 8 , further comprising a stent cup coupled to the holding region.

15. A medical device assembly, comprising:

an inner tubular member, the inner tubular member having a distal tip, a holding region for holding an expandable medical device on the distal tip, a holding sleeve coupled to the holding region, a stent cup disposed adjacent to the holding sleeve, and a first proximal region;

wherein a first opening is defined in the inner tubular member adjacent to the holding region;

an outer tubular member slidably disposed over the inner tubular member, the outer tubular member including a distal end, a covering region, and a second proximal region; and

wherein a second opening is defined in the outer tubular member adjacent to the covering region.

16. The medical device assembly of claim 15 , wherein the first opening has a first length, wherein the second opening has a second length, and wherein the first length is longer than the second length.

17. The medical device assembly of claim 15 , wherein the outer tubular member includes a ramp that extends into the first opening.

18. The medical device assembly of claim 17 , wherein the inner tubular member defines a lumen therein and wherein the ramp extends into and is moveable within the lumen.

19. The medical device assembly of claim 15 , wherein the expandable medical device includes a stent.

20. The medical device assembly of claim 15 , further comprising a stent disposed on the holding region.

21. The medical device assembly of claim 15 , wherein the distal tip of the inner tubular member restricts longitudinal movement of the outer tubular member relative to the inner tubular member.

22. A medical device assembly, comprising:

an inner tubular member, the inner tubular member having a distal tip, a holding region for holding an expandable medical device on the distal tip, means for holding the expandable medical device coupled to the holding region, and a first proximal region;

wherein a first opening is defined in the inner tubular member adjacent to the holding region;

an outer tubular member slidably disposed over the inner tubular member, the outer tubular member including a distal end, a covering region, and a second proximal region; and

wherein a second opening is defined in the outer tubular member adjacent to the covering region.