Valved conduit designed for subsequent catheter delivered valve therapy

• US 7,625,403 B2
• Filed: 04/04/2006
• Issued: 12/01/2009
• Est. Priority Date: 04/04/2006
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Krivoruchko, Mike
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/278,646
• Publication Number:
  US 20070233237A1
• Time in Patent Office: 1,337 Days
• Field of Search: 623 124- 219
• US Class Current: 623/2.17
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/30329 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A system for treating a vascular condition includes a conduit having an inner wall and at least one locking member positioned within the inner wall of the conduit. The system also includes a stented valve positioned in contact with the locking member within the inner wall of the conduit. A method for treating a vascular condition includes inserting a conduit with a stented valve into a target region of a vessel, positioning a contact portion of the stented valve against a locking portion of the conduit and preventing migration of the stented valve within the conduit based on the positioning.

Claims

1. A system for treating a vascular condition, comprising:

a conduit including an inner wall;

at least one locking member positioned on or within the inner wall of the conduit, wherein the locking member comprises a ring; and

an expandable stent having a prosthetic valve disposed therein, wherein the stent can be positioned in contact with the at least one locking member.

2. The system of claim 1 wherein the stent includes a complementary receiving portion to mate with the locking member.

3. The system of claim 1 wherein the at least one locking member includes a first locking member and a second locking member spaced apart from the first locking member.

4. The system of claim 3 wherein a first end of the stent contacts with a portion of the first locking member and a second end of the stented valve contacts with a portion of the second locking member when the stent is in an expanded configuration.

5. A system for treating a vascular condition, comprising:

a conduit including an inner wall;

at least one locking member positioned on or within the inner wall of the conduit, wherein the at least one locking member comprises a ring member, the ring member including a locking channel disposed along an inner circumference of the ring member and

an expandable stent having a prosthetic valve disposed therein, wherein the stent can be positioned in contact with the at least one locking member.

6. The system of claim 5 wherein the stent comprises at least one strut member, the at least one strut member including a mating portion complementary to the locking channel and wherein the mating portion contacts the locking channel in a locking configuration when the stented valve is in an expanded configuration.

7. A system for treating a vascular condition, comprising:

a conduit including an inner wall;

at least one locking member positioned on or within the inner wall of the conduit, wherein the at least one locking member comprises a semicircular locking member; and

an expandable stent having a prosthetic valve disposed therein, wherein the stent can be positioned in contact with the at least one locking member.

8. The system of claim 7 wherein the semicircular locking member includes a locking channel disposed along an inner circumference of the semicircular locking member.

9. The system of claim 8 wherein the stent comprises at least one strut member, the at least one strut member including a mating portion complementary to the locking channel and wherein the mating portion contacts the locking channel in a locking configuration when the stent is in an expanded configuration.

10. A system for treating a vascular condition, comprising:

a conduit operably attached to a vessel, the conduit including an inner wall and at least one locking member attached to the inner wall, wherein the at least one locking member comprises a ring member disposed at a proximal end of the conduit;

a delivery catheter; and

a stented valve having a prosthetic valve disposed in a stent with a plurality of strut members, wherein at least one of the strut members includes a mating portion complementary to the at least one locking member,

wherein the stented valve is removably disposed at a distal end of the delivery catheter for delivery to a treatment site.

11. The system of claim 10 wherein the mating portion comprises an arched member for receiving the ring member.

12. A system for treating a vascular condition, comprising:

a conduit operably attached to a vessel, the conduit including an inner wall and at least one locking member attached to the inner wall, wherein the at least one locking member comprises a ring member, the ring member including a locking channel disposed along an inner circumference of the ring member

a delivery catheter; and

a stented valve having a prosthetic valve disposed in a stent with a plurality of strut members, wherein at least one of the strut members includes a mating portion complementary to the at least one locking member,

wherein the stented valve is removably disposed at a distal end of the delivery catheter for delivery to a treatment site.

13. The system of claim 12 wherein the stented valve comprises at least one strut member, the at least one strut member including a mating portion complementary to the locking channel and wherein the mating portion contacts the locking channel in a locking configuration when the stented valve is in an expanded configuration.

14. A system for treating a vascular condition, comprising:

a conduit operably attached to a vessel, the conduit including an inner wall and at least one locking member attached to the inner wall;

a delivery catheter;

a stented valve having a prosthetic valve disposed in a stent with a plurality of strut members, wherein at least one of the strut members includes a mating portion complementary to the at least one locking member;

a first radiopaque marker disposed on a portion of the locking member; and

a second radiopaque marker disposed on a portion of the mating member

wherein the stented valve is removably disposed at a distal end of the delivery catheter for delivery to a treatment site.

15. A method for treating a vascular condition, the method comprising:

inserting a conduit with a locking member into a target region of a vascular system;

positioning a contact portion of a stented valve against the locking member of the conduit; and

preventing migration of the stented valve within the conduit based on the positioning.

16. The method of claim 15 further comprising:

aligning a first radiopaque marker disposed on or adjacent the contact portion of the stented valve with a second radiopaque portion located on the locking member.