ADJUSTABLE ANNULOPLASTY RING AND ACTIVATION SYSTEM

• US 20120215305A1
• Filed: 02/16/2012
• Published: 08/23/2012
• Est. Priority Date: 08/10/2007
• Status: Abandoned Application

• Current Assignee: MiCardia Corporation
• Original Assignee: MiCardia Corporation
• Inventors: Le, Le, Tran, Jason, Flores, Jesus, Mac, Kelly
• Application Number:
  US13/397,945
• Publication Number:
  US 20120215305A1
• Time in Patent Office: Days
• US Class Current: 623/2.37
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2018/00821 measured by a thermocouple
• CPC Class Codes: A61B 2218/002 Irrigation
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2448 D-shaped rings
• CPC Class Codes: A61F 2210/0038 electromagnetically
• CPC Class Codes: A61F 2250/0001 Means for transferring electromagnetic energy to implants
• CPC Class Codes: A61F 2250/0004 adjustable
• CPC Class Codes: C08L 2201/12 Shape memory

Abstract

An adjustable implantable medical device and adjustment device are described. In some embodiments, the adjustment device includes a lead with a distal end modified to permit better engagement and securement to the described implantable devices. In some embodiments, the contact of the lead is bent. Some embodiments include a coil that engages and secures the lead to the implantable device. Some embodiments include a suture line to aid in securing the lead to the implantable device.

Claims

1. An activation device, for applying energy to an implanted medical device, comprising:

an outer elongate member having an outer elongate member distal end and an outer elongate member proximal end, and a lumen therebetween;

at least one inner elongate member having an inner elongate member distal end and in inner elongate member proximal end, wherein the at least inner elongate member is slidably inserted through the lumen of the outer elongate member;

wherein the at least one inner elongate member comprises a conducting member, situated within at least a portion of the inner elongate member, said conducting member effective to energetically couple an energy source to the implanted medical device;

wherein the conducting member further comprises an energy transfer element having a proximal end coupled to the conducting member, and a distal end that can be reversibly coupled to the implantable medical device; and

an engaging member, having a proximal end coupled to the distal end of the at least one inner elongate member, and a distal end effective to reversibly secure at least a portion of the activation device to at least a portion of the implantable medical device.

2. The activation device of claim 1, wherein the energy transfer member is rotatable relative to the engaging member.

3. The activation device of claim 1, wherein the energy transfer member comprises an electrode.

4. The activation device of claim 1, wherein the distal end of the energy transfer member is configured to penetrate an outer surface of the implant medical device.

5. The activation device of claim 1, wherein the engaging member is substantially energetically isolated from the energy transfer member.

6. The activation device of claim 1, wherein the engaging member comprises a coil.

7. The activation device of claim 1, wherein the distal end of the engaging member is configured to penetrate an outer surface of the implant medical device.

8. The activation device of claim 1, further comprising a suture line, coupled to the inner elongate member, and which is effective to secure the adjustment device to the implantable medical device.

9. The activation device of claim 8, wherein the suture line is configured to be secured to the outer elongate member.

10. The activation device of claim 1, wherein at least a portion of the distal end of the energy transfer member is axially deformed.

11. The activation device of claim 10, wherein the axially deformed portion of the energy transfer member forms an angle relative to the longitudinal axis of the conducting member of about 120°

.

12. The activation device of claim 10, wherein the axially deformed portion of the energy transfer member forms an angle relative to the longitudinal axis of the conducting greater than about 120°

.

13. The activation device of claim 10, wherein the axially deformed portion of the energy transfer member forms an angle relative to the longitudinal axis of the conducting member less than about 120°

.

14. The activation device of claim 1, wherein the energy transfer member is an electrical wire.

15. The activation device of claim 1, wherein the implanted medical device is an annuloplasty ring.

16. The activation device of claim 1, wherein the energy is selected from the group consisting of radiofrequency energy, mechanical energy, acoustic energy and electromagnetic energy.

17. A method, for applying energy to an implanted annuloplasty ring, the method comprising:

providing an activation device comprising;

an outer elongate member having an outer elongate member distal end and an outer elongate member proximal end, and a lumen therebetween;

an inner elongate member having an inner elongate member distal end and in inner elongate member proximal end, wherein the inner elongate member is slidably inserted through the lumen of the outer elongate member;

a conducting member, situated within at least a portion of the inner elongate member, said conducting member effective to conduct energy from a energy source to the implanted medical device;

an energy transfer element having a proximal end coupled to the conducting member, and a distal end that can be reversibly coupled to the implantable medical device; and

an engaging member, having a proximal end coupled to the distal end of the at least one inner elongate member, and a distal end effective to reversibly secure at least a portion of the activation device to at least a portion of the implantable medical device;

inserting at least a portion of the outer elongate member distal end, inner elongate member distal end, conducting member, energy transfer element, and engaging member, into an atrium of a patient'"'"'s heart at or near a base of an atrioventricular valve;

engaging the activation device to the adjustable annuloplasty ring; and

applying energy via the energy transfer element to the adjustable annuloplasty ring.