Apparatus and method for relining a blood vessel

• US 6,589,273 B1
• Filed: 10/02/2000
• Issued: 07/08/2003
• Est. Priority Date: 10/02/2000
• Status: Expired due to Term

• Current Assignee: Bard Peripheral Vascular Incorporated (Becton, Dickinson & Co)
• Original Assignee: IMPRA Incorporated (Becton, Dickinson & Co)
• Inventors: McDermott, John D.
• Primary Examiner(s): Isabella, David J.
• Assistant Examiner(s): Chattopadhyay, Urmi
• Application Number:
  US09/678,505
• Time in Patent Office: 1,009 Days
• Field of Search: 623/1.1, 623/1.11, 623/1.13, 623/1.23, 623/11, 623/12, 606/191-192, 606/194-195, 606/198, 606/108, 604/96.01, 604/104
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially

Abstract

A delivery system and device for re-lining bodily vessels. A stent is attached to a distal end of a tubular lining made of biocompatible material and loaded into a hollow atraumatic tip. A semi-rigid shaft connects the atraumatic tip to a stopper and runs through the center of the tubular lining. The proximal end of the tubular lining is attached to a sliding hub. Optionally, a balloon is positioned near the stent in fluid communication with the shaft. The assembled device is introduced into a bodily vessel following an endarterectomy or atherectomy procedure. The atraumatic tip is delivered to a predetermined location and upon reaching that destination, the stent is released from the tip to expand against the vessel wall. If a balloon is utilized, it is inflated to ensure that the stent is fully deployed within the vessel. The balloon is then deflated arid the tip and shaft are pulled through the expanded stent and tubular lining. The sliding hub is cut off of the tubular lining and the proximal anastomosis is completed.

Claims

1. In combination, an apparatus and delivery system for relining a blood vessel, comprising:

a tubular liner of biocompatible material having a proximal end and a distal end, wherein an anchoring stent is attached to said distal end of said liner for anchoring said liner within said blood vessel, and wherein a removable hub is attached to said proximal end of said tubular liner, said liner having a length greater than the length of said stent, wherein said proximal end of said liner in configured to be secured to said blood vessel following removal of said hub; and

a hollow atraumatic tip positioned at a distal end of said delivery system, said tip being connected to a proximal end of said delivery system by a shaft, wherein said shaft is positioned within said liner, and wherein at least a portion of said stent is positioned within said tip.

2. The apparatus and delivery system according to claim 1, further comprising a stopper connected to said shaft at said proximal end of said delivery system, said stopper having a diameter that is greater than a diameter of said liner.

3. The apparatus and delivery system according to claim 1, further comprising a balloon and a balloon hub, wherein said balloon hub is positioned at a proximal end of said delivery system and is connected to said shaft, wherein said balloon is positioned around said shaft and in fluid communication therewith, said shaft comprising a passageway connecting said balloon to said balloon hub.

4. The apparatus and delivery system according to claim 1, further comprising location marking means.

5. The apparatus and delivery system according to claim 4, wherein said location marking means is positioned on said stent.

6. The apparatus and delivery system according to claim 4, wherein said location marking means is positioned on said liner.

7. The apparatus and delivery system according to claim 4, wherein said location marking means comprises a radiopaque material.

8. The apparatus and delivery system according to claim 3, wherein said balloon further comprises location marking means.

9. The apparatus and delivery system according to claim 8, wherein said location marking means comprises radiopaque material on a proximal and distal end of said balloon.

10. The apparatus and delivery system according to claim 1, wherein said biocompatible material is expanded polytetrafluoroethylene.

11. The apparatus and delivery system according to claim 1, wherein said anchoring stent is a self-expanding stent.

12. The apparatus and delivery system according to claim 1, wherein said liner further comprises a luminal layer and an abluminal layer, and wherein said stent is encapsulated between said luminal and abluminal layers.

13. The apparatus and delivery system according to claim 1, further length of said liner.

14. The apparatus and delivery system according to claim 3, further positioned along the length of said liner.