Implantable medical endoprosthesis delivery systems

• US 20070208350A1
• Filed: 03/06/2006
• Published: 09/06/2007
• Est. Priority Date: 03/06/2006
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Gunderson, Richard
• Application Number:
  US11/368,572
• Publication Number:
  US 20070208350A1
• Time in Patent Office: Days
• US Class Current: 606/108
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2250/0065 telescopic

Abstract

Implantable medical endoprosthesis delivery systems, as well as related components and methods, are provided.

Claims

1. An implantable medical endoprosthesis delivery system comprising:

a first member;

a second member slidably disposed around at least a portion of the first member;

a third member disposed around at least a portion the second member; and

a membrane connected to the first and second members;

wherein the first and second members are configured so that an implantable medical endoprosthesis can be positioned therebetween.

2. The delivery system of claim 1, wherein:

the second member has a delivery position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane covers the implantable medical endoprosthesis;

a deployment position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane does not cover the endoprosthesis; and

the distal end of the third member is proximal to the distal end of the second member when the second member is in the deployment position.

3. The delivery system of claim 1, wherein the third member cannot move longitudinally relative to the first member.

4. An implantable medical endoprosthesis delivery system comprising:

a first member;

a second member slidably disposed around at least a portion of the first member;

a third member disposed around at least a portion the second member; and

a membrane connected to the first and second members;

wherein the third member is longitudinally fixed relative to the first member.

5. The delivery system of claim 4, wherein the second member is slidably disposed over the first member.

6. The delivery system of claim 4, wherein:

the second member has a delivery position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane covers the endoprosthesis;

a deployment position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane does not cover the endoprosthesis; and

the distal end of the third member is proximal to the distal end of the second member when the second member is in the deployment position.

7. An implantable medical endoprosthesis delivery system comprising:

a first member;

a second member slidably disposed around at least a portion of the first member;

a third member disposed around at least a portion the second member; and

a membrane connected to the first and second members;

wherein a distal end of the third member is proximal to a distal end of the second member.

8. The delivery system of claim 7, wherein the third member is longitudinally fixed relative to the first member.

9. The delivery system of claim 7, wherein the second member has a delivery position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane covers the endoprosthesis and a first end and a second end of the membrane are proximal to the endoprosthesis.

10. The delivery system of claim 7, wherein the second member has a delivery position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane covers the endoprosthesis and a distal end of the second member is proximal to the endoprosthesis.

11. The delivery system of claim 7, wherein the second member has a delivery position configured so that, when an implantable medical endoprosthesis is positioned between the first and second members, the membrane covers the endoprosthesis, a first end of the membrane is distal to the endoprosthesis, and a second end of the membrane is proximal to the endoprosthesis.

12. The delivery system of claim 7, wherein the membrane is capable of folding back over itself as the second member is moved proximally relative to the first member.

13. The delivery system of claim 7, further comprising a fluid in a fluid lumen located between an outer surface of the first member and an inner surface of the second member.

14. The delivery system of claim 7, wherein a proximal end of the second member is proximal a proximal end of the third member.

15. The delivery system of claim 7, further comprising a handle to which a proximal end of the first member and a proximal end of the third member are fixed.

16. A method of deploying an implantable medical endoprosthesis, the method comprising:

introducing into a body lumen a delivery system comprising a first member, a second member slidably disposed around at least a portion of the first member, a third member disposed around at least a portion the second member, a membrane connected to the first and second members, and an implantable medical endoprosthesis disposed about a distal portion of the first member between the first member and the membrane, wherein a distal end of the third member is proximal to a distal end of the second member.

17. The method of claim 16, further comprising advancing the delivery system until the implantable medical endoprosthesis located at a delivery site and moving the second member proximally to deploy the implantable medical endoprosthesis.

18. The method of claim 17, further comprising holding the third member motionless at the point of entry into the body lumen, relative to the body lumen, while retracting the second member.

19. The method of claim 16, further comprising pressurizing a fluid in a fluid lumen located between an outer surface of the first member and an inner surface of the second member.

20. A method of deploying an implantable medical endoprosthesis, the method comprising:

introducing into a body lumen a delivery system comprising a first member, a second member slidably disposed around at least a portion of the first member, a third member disposed around at least a portion the second member, a membrane connected to the first and second members, and an implantable medical endoprosthesis disposed about a distal portion of the first member between the first member and the membrane, wherein the third member is fixed relative to the first member.

21. The method of claim 20, further comprising advancing the delivery system until the implantable medical endoprosthesis is located at a delivery site and moving the second member proximally to deploy the implantable medical endoprosthesis.

22. The method of claim 21, further comprising holding the third member motionless at the point of entry into the body lumen, relative to the body lumen, while retracting the second member.

23. The method of claim 20, further comprising pressurizing a fluid in a fluid lumen located between an outer surface of the first member and an inner surface of the second member.

24. A method of deploying an endoprosthesis, the method comprising:

introducing into a body lumen a delivery system comprising a first member, a second member slidably disposed around at least a portion of the first member, a third member disposed around at least a portion the second member, a membrane connected to the first and second members, and an implantable medical endoprosthesis disposed about a distal portion of the first member between the first member and the membrane, wherein a proximal end of the implantable medical endoprosthesis is distal a distal end of the third member.

25. The method of claim 24, further comprising advancing the delivery system until the implantable medical endoprosthesis is located at a delivery site and moving the second member proximally to deploy the implantable medical endoprosthesis.

26. The method of claim 25, further comprising holding the third member motionless at the point of entry into the body lumen, relative to the body lumen, while retracting the second member.

27. The method of claim 24, further comprising pressurizing a fluid in a fluid lumen located between an outer surface of the first member and an inner surface of the second member.