Bonding sleeve for medical device

• US 7,785,340 B2
• Filed: 02/04/2002
• Issued: 08/31/2010
• Est. Priority Date: 02/04/2002
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Heidner, Matthew C., Holman, Thomas J.
• Primary Examiner(s): Bui; Vy Q
• Application Number:
  US10/066,994
• Publication Number:
  US 20030149465A1
• Time in Patent Office: 3,130 Days
• Field of Search: 606/194, 606/108, 623/1.11, 604/103.01, 604/509, 604/524, 604/529
• US Class Current: 606/194
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/9583 Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve

Abstract

A medical device delivery system comprises an inner tube, a medical device disposed about a portion of the distal region of the inner tube, a medical device sheath disposed about the medical device, a medical device sheath retraction device extending proximally from the medical device sheath and an outer sheath disposed about a portion of the medical device sheath retraction device. The distal end of the outer sheath terminates at least one medical device length proximal of the medical device. The medical device sheath is movable relative to the outer sheath and relative to the inner tube.

Claims

1. A catheter comprising:

a distal shaft having a length, a substantially constant outer diameter along a majority of its length, a lumen and a proximal end;

a proximal shaft having a length, a substantially constant outer diameter along a majority of its length, a wall defining an inner lumen and a distal end, the distal end of the proximal shaft being connected to the proximal end of the distal shaft and the lumens of the respective shafts being in fluid communication with one another;

a heat shrinkable sleeve having a longitudinal length extending from a proximal-most end to a distal-most end of said heat shrinkable sleeve, and overlapping the proximal end of the distal shaft and the distal end of the proximal shaft providing a water seal, wherein said longitudinal length consists of a small portion of the distal end of the proximal shaft and a small portion of the proximal end of the distal shaft; and

a port, wherein the port is positioned between the first and second ends of the heat shrinkable sleeve and formed at least partially transversely through the wall of the proximal shaft, wherein the catheter is sterilized and prepared to safely enter a body.

2. The catheter of claim 1, wherein the distal shaft and the proximal shaft overlap.

3. The catheter of claim 1, wherein the heat shrinkable sleeve comprises a thermoplastic polymer which is substantially not cross-linked.

4. The catheter of claim 1, the heat shrinkable sleeve being gradually heat shrunk along its length around the distal shaft and proximal shaft.

5. The catheter of claim 1, wherein the retaining sleeve is formed from a material chosen from the group consisting of a liquid film, wherein the film solidifies prior to the bonding of the balloon to the shafts or a gel, wherein the gel hardens prior to the bonding of the balloon to the shafts.

6. The catheter of claim 1, wherein the proximal shaft is metal.

7. The catheter of claim 1, further comprising an inner shaft within the distal shaft, wherein the inner shaft is in communication with the port.

8. The catheter of claim 1, wherein the port is formed in the proximal shaft.

9. The catheter of claim 1, wherein the port is at least partially formed in the distal shaft.

10. The catheter of claim 1, wherein the port is formed in the distal shaft and the proximal shaft.

11. The catheter of claim 1, wherein the distal shaft and the proximal shaft abut each other.

12. The catheter of claim 7, wherein the inner shaft is a guide wire shaft, through which a guide wire may be used.