Stent introducer system

• US 20050273150A1
• Filed: 03/31/2005
• Published: 12/08/2005
• Est. Priority Date: 03/31/2004
• Status: Abandoned Application

• Current Assignee: Wilson-Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Wilson-Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Gibbons, William S. Jr., Clark, Victor D. Jr., Carter, Matthew P., Howell, Douglas D.
• Application Number:
  US11/095,208
• Publication Number:
  US 20050273150A1
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2/97 the outer sleeve being splittable
• CPC Class Codes: A61F 2002/041 Bile ducts
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2250/0071 breakable or frangible

Abstract

A stent delivery system for positioning a first and second stent the first and second branch lumens of a bifurcation. The stent delivery system includes stent introducers and a sheath or catheter having a frangible wall. A method of delivering stents to anatomies such as bifurcated ducts or vessels.

Claims

1. A stent delivery system comprising:

a first introducer comprising a first stent;

a second introducer comprising a second stent; and

a catheter having a passageway adapted to receive the second introducer.

2. The stent delivery system of claim 1 wherein the first introducer and the catheter are adapted to be disposed in a partly staggered configuration within the working channel of an endoscope.

3. The stent delivery system of claim 2, wherein the first introducer and the catheter have a combined outside diameter between about 3 mm and 4.5 mm.

4. The stent delivery system of claim 1, wherein the catheter further comprises a side wall having a frangible portion.

5. The stent delivery system of claim 4, wherein the first introducer comprises a distal portion having a stent retaining portion.

6. The stent delivery system of claim 4, wherein the second introducer comprises a distal portion having a stent retaining portion.

7. The stent delivery system of claim 4, wherein a proximal portion of the first introducer is positioned adjacent to the catheter and a distal portion of the first introducer is distal to the catheter when the first introducer and catheter are inside the working channel of the endoscope.

8. The stent delivery system of claim 1 further comprising a first wire guide, wherein the first introducer further comprises a wire guide lumen adapted to receive the first wire guide.

9. The stent delivery system of claim 8, wherein the wire guide lumen extends through at least a distal portion of the first introducer.

10. The stent delivery system of claim 8 further comprising a second wire guide, wherein the second introducer further comprises a second wire guide lumen adapted to receive the second wire guide.

11. The stent delivery system of claim 10, wherein the wire guide lumen of the second introducer extends through at least a distal portion of the second introducer introducer.

12. A kit for delivering first and second stents to a branched target anatomy, the kit comprising:

a first introducer comprising;

a tubular body having a proximal end, a distal end, and a stent carrying portion therebetween;

a second introducer comprising;

a tubular body having a proximal end, a distal end, and a stent carrying portion therebetween;

a catheter adapted to receive the second introducer, the catheter having a frangible wall; and

a sterile package adapted to receive the first introducer, the second introducer and the catheter.

13. The kit of claim 12, further comprising:

a first self-expanding stent positioned within the stent carrying portion of the first introducer; and

a second self-expanding stent positioned within the stent carrying portion of the second introducer.

14. The kit of claim 13, further comprising:

a first wire guide wherein the first wire guide is configured to receive the first introducer; and

a second wire guide wherein the second wire guide is configured to receive the second introducer; and

wherein the sterile package is adapted to receive the first and second wire guides.

15. The kit of claim 12, wherein the first introducer further comprises:

a passageway extending between the distal end and a port positioned proximal to the stent carrying portion, wherein the port is adapted to receive a wire guide.

16. The kit of claim 12, wherein the second introducer further comprises:

a passageway extending between the distal end and a port positioned proximal to the stent carrying portion, wherein the port is adapted to receive a wire guide.

17. The kit of claim 12, wherein the first introducer further comprises:

a passageway extending between the distal end and a port positioned distal to the stent carrying portion, wherein the port is adapted to receive a wire guide.

18. The kit of claim 12, wherein the second introducer further comprises:

a passageway extending between the distal end and a port positioned distal to the stent carrying portion, wherein the port is adapted to receive a wire guide.

19. A method for propping open a narrowed bifurcated anatomy having a main lumen and first and second branch lumens, the method comprising the steps of:

a) providing the kit of claim 19;

b) providing an endoscope having a working channel;

c) positioning the endoscope adjacent the bifurcated anatomy;

d) advancing the first wire guide through the working channel to the first branch lumen;

e) advancing the second wire guide through the working channel to the second branch lumen;

f) advancing the first introducer over the first wire guide to the first branch lumen of the bifurcation;

g) advancing the catheter over the second wire guide to the second branch lumen of the of the bifurcation; and

h) deploying the first stent within the first branch lumen.

20. The method of claim 19, wherein steps f) and g) further comprise advancing the first introducer and the catheter through the working channel in a staggered configuration;

and further comprising the steps of;

i) advancing the second introducer over the second wire guide and through the catheter to the second branch lumen;

j) removing the catheter, thereby splitting the frangible wall;

k) deploying the second stent; and

l) withdrawing the second introducer.