Transventricular implant tools and devices

• US 6,746,471 B2
• Filed: 05/25/2001
• Issued: 06/08/2004
• Est. Priority Date: 07/29/1998
• Status: Expired due to Term

• Current Assignee: Bioventrix, Inc.
• Original Assignee: Myocor, Inc. (Edwards Lifesciences Corporation)
• Inventors: Keith, Peter T., Kusz, David A., Paulson, Thomas M., Vidlund, Robert M., Mortier, Todd J., Schweich, Cyril J. Jr.
• Primary Examiner(s): Woo, Julian W.
• Application Number:
  US09/864,320
• Publication Number:
  US 20010025171A1
• Time in Patent Office: 1,110 Days
• Field of Search: 606/205-207, 606/210, 606/211, 606/174, 600/210, 600/211, 600/16, 600/37, 600/201, 600/231
• US Class Current: 606/207
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/1227 Spring clips
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61B 2017/0441 the shaft being a rigid coil or spiral
• CPC Class Codes: A61B 2017/048 for reducing heart wall tension, e.g. sutures with a pad on each extremity
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

A method and implantation tools for placing a transventricular splint including a tension member. The method includes gaining access to the patient'"'"'s hearts and identifying entry or exit points for the tension member, marking those locations and delivering the tension member. Anchors for the tension member are also delivered. The length of the tensions member is measured and the walls of the heart drawn together. The pads are secured to the tension member and the tension member is trimmed to length. The pads are secured to the heart surface.

Claims

1. An alignment system for aligning an elongate member during insertion into a heart chamber, comprising:

an elongate member; and

an alignment device comprising;

a first arm and a second arm adapted to move relative to each other and extend around at least a portion of a wall of a heart chamber;

a first positioning member disposed on an end of said first arm; and

a second positioning member disposed on an end of said second arm to substantially oppose said first positioning member,

wherein the first and second positioning members respectively define first and second apertures configured to receive the elongate member so as to assist in aligning the elongate member with respect to a heart chamber during insertion of the elongate member into the heart chamber.

2. The system of claim 1, wherein at least one of the first and second positioning members includes a stabilization mechanism for stabilizing the positioning member with respect to the heart wall.

3. The system of claim 2, wherein the stabilization mechanism comprises a vacuum aperture for fluid communication with a vacuum source.

4. The system of claim 3, wherein the at least one of the first and second positioning members are stabilized with respect to said heart wall when the vacuum aperture is connected to the vacuum source.

5. The system of claim 2, wherein the stabilization mechanism comprises a friction surface for stabilizing said positioning member with respect to said heart wall.

6. The system of claim 1, wherein the first positioning member includes a stopping mechanism adapted to stop advancement of the elongate member.

7. The system of claim 1, further comprising first and second handles respectively attached to said first and second arms.

11. The device of claim 1, wherein the first and second arm include curved portions.

12. The device of claim 1, wherein the first arm is configured to be connected to a guide tube.

13. The device of claim 1, wherein at least one of the first positioning member and the second positioning member defines a suction chamber.

14. The device of claim 1, wherein the first positioning member and the second positioning member are heart-engaging members.

8. The device of 7, wherein said first handle and said first arm are pivotally connected to said second handle and said second arm.

9. The device of claim 8, wherein at least one of said first positioning member and said second positioning member is rotatably connected to said respective first arm and second arm.

10. The device of claim 9, wherein a band extends between said positioning members.

15. An alignment device for aligning an elongate member during insertion into a heart chamber, comprising:

a first arm and a second arm adapted to move relative to each other and extend around at least a portion of a wall of a heart chamber;

a first positioning member disposed on an end of said first arm;

a second positioning member disposed on an end of said second arm to substantially oppose said first positioning member;

first and second handles respectively attached to said first and second arms; and

a spring adapted to bias said handles away from each other and said first and second alignment arms toward each other,

wherein the first and second positioning members respectively define first and second apertures.

16. An alignment device comprising:

a first arm supporting a first tissue-engaging member, the first tissue-engaging member having a first tissue-contacting surface and defining at least one suction chamber;

a second arm supporting a second tissue-engaging member, the second tissue-engaging member having a second tissue-contacting surface and defining at least one suction chamber;

a stop associated with the second tissue-engaging member, the stop being configured to stop advancement of a member past the stop as the member is being advanced from the first tissue-engaging member to the second tissue-engaging member; and

a handle assembly connected to the first and second arms.

17. The alignment device of claim 16, wherein the first and second tissue engaging members are heart-engaging members.

18. The alignment device of claim 16, wherein the first and second arms include curved portions.

19. The alignment device of claim 16, further comprising a guide tube connected to the first arm.

20. The alignment device of claim 19, wherein an outlet of the guide tube is aligned with a center of the first tissue-engaging member.

21. The alignment device of claim 16, wherein the at least one suction chamber of each of the first and second arms is configured to be connected to a vacuum source.

22. The alignment device of claim 16, wherein the handle assembly includes a first handle portion supporting the first arm and a second handle portion supporting the second arm.