Implantable devices for controlling the size and shape of an anatomical structure or lumen

• US 20080027483A1
• Filed: 05/21/2007
• Published: 01/31/2008
• Est. Priority Date: 08/29/2002
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Mitralsolutions, Inc.
• Inventors: Green, James, Lee, Leonard, Cartledge, Richard, Fann, James, Friedmann, Josef
• Granted Patent: US 8,758,372 B2
• Time in Patent Office: Days
• US Class Current: 606/201
• 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 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00455 Orientation indicators, e.g. recess on the handle
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61B 2017/0641 having at least three legs as part of one single body
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/6885 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61F 2/0031 for constricting the lumen; Support slings for the urethra
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• 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 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2002/30537 adjustable
• CPC Class Codes: A61F 2250/0004 adjustable
• CPC Class Codes: A61F 2250/0029 differing in bending or flexure capacity

Abstract

An implantable device system for controlling the dimensions of internal anatomic passages corrects physiologic dysfunctions resulting from a structural lumen which is either too large or too small. Implantable devices are disclosed which employ various mechanisms for adjusting and maintaining the size of an orifice to which they are attached. Systems permit the implants to be implanted using minimally invasive procedures and permit final adjustments to the dimensions of the implants after the resumption of normal flow of anatomic fluids in situ.

Claims

1. An implantable device system for controlling at least one of the shape and size of an anatomical structure or lumen, comprising:

an implantable device adapted for attachment to an anatomical structure or lumen, said implantable device comprising an adjustable member configured to receive an adjustment tool and configured to both increase and decrease the dimensions of the implantable device; and

a torqueable adjustment tool configured to provide adjustment of the dimensions of the implantable device, wherein adjustment of said adjustable member adjusts the size of the implant device generally in a preferred dimension.

2. The system of claim 1, wherein said implantable device comprises at least one hollow tube and at least one threaded rod threadedly engaged therewith such that rotation of the threaded rod causes the threaded rod to move axially within the hollow tube.

3. The system of claim 2, wherein said implantable device comprises an inner cable to translate rotational motion to said threaded rod.

4. The system of claim 1, wherein said implantable device comprises a flexible tube covering the outer layer of said implant device.

5. The system of claim 1, wherein adjustment of said adjustable member adjusts the size of the implant device generally in an anterior-posterior dimension.

6. The system of claim 1, further comprising a sensor coupled to the implantable device.

7. The system of claim 6, wherein the sensor measures at least one of pressure, temperature, and flow across the implantable device.

8. The system of claim 1, wherein said adjustment tool comprises a handle, said handle including a member to quantify a size change of the implantable device.

9. The system of claim 1, wherein said adjustment tool is configured to impart reciprocating action to the adjustable member.

10. The system of claim 9, wherein said adjustable member comprises a clover gear to transmit radial torque.

11. The system of claim 10, wherein said adjustable member converts axial force applied from said adjustment tool to a rotation force applied to the implantable device.

12. The system of claim 1, wherein said adjustment tool is configured to provide both course adjustment and fine adjustment of said implantable device.

13. An implantable device system for controlling at least one of the shape and size of an anatomical structure or lumen, comprising:

an implantable device adapted for attachment to an anatomical structure or lumen, said implantable device having a first band and a second band and an adjustable member configured to both increase and decrease the dimensions of the implantable device, said adjustable member configured to receive an adjustment tool;

a torqueable adjustment tool configured to provide adjustment of the dimensions of the implantable device, wherein adjustment of said adjustable member adjusts the size of the implant device generally in a preferred dimension.

14. The system of claim 13, wherein the first band and the second band are overlappable.

15. The system of claim 13, wherein the first band and the second band are slidable relative to each other.

16. The system of claim 13, wherein the adjustable member is configured to pull the first band and the second band toward each other.

17. The system of claim 13, wherein the at least one of said first and second bands has portions of varying durometer.

18. An implantable device system for controlling at least one of the shape and size of an anatomical structure or lumen, comprising:

an implantable device adapted for attachment to an anatomical structure or lumen, said implantable device comprising at least one adjustable member configured to receive an adjustment tool and configured to both increase and decrease the dimensions of the implantable device, wherein the implantable device includes dual threads that provide preferential adjustment of one side of the implantable device.

a torqueable adjustment tool configured to provide adjustment of the dimensions of the implantable device.

19. The system of claim 18, wherein said implantable device comprises at least one hollow tube and at least one threaded rod threadedly engaged therewith such that rotation of the threaded rod causes the threaded rod to move axially within the hollow tube.

20. The system of claim 19, wherein said implantable device comprises at least one inner cable to translate rotational motion to said threaded rod.

21. An implantable device adapted for attachment to an anatomical structure or lumen for controlling the size and/or shape of the anatomical structure or lumen, said device comprising:

an anterior region comprising one or more hollow rigid tube threadedly engaged with one or more threaded rods;

a posterior region comprising one or more hollow rigid tubes and an adjustable member configured to translate rotational motion to at least one inner cable;

said inner cable operatively connected to said adjustable member and said threaded rod so as to translate rotational motion from said adjustable member to said screw, wherein rotation of said screw can both increases and decrease the dimensions between the anterior region and the posterior region.

22. The implantable device of claim 21, further comprising at least one flexible tube that covers at least a portion of the anterior region and the posterior region.

23. The implantable device of claim 21, further comprising a micro-electromechanical motor system to commence rotational movement in said adjustable member.