Device and method for removing lumenless leads

• US 8,128,636 B2
• Filed: 02/09/2007
• Issued: 03/06/2012
• Est. Priority Date: 02/13/2006
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Lui, Chun Kee, Norlander, Barry E.
• Primary Examiner(s): Layno, Carl H
• Assistant Examiner(s): Bays, Pamela M
• Application Number:
  US11/704,852
• Publication Number:
  US 20070191919A1
• Time in Patent Office: 1,852 Days
• Field of Search: 607/116, 607/119, 606/1, 606/108, 606/113
• US Class Current: 606/108
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction

Abstract

A device for removing from a patient a previously implanted elongated structure, such as a cardiac lead. The device includes a gripping member having a receiving portion and a capturing portion. The receiving portion defines an eyelet for receiving a length of the elongated structure. The capturing portion is movable relative to at least the eyelet of the receiving portion, and is dimensioned such that upon relative movement, the receiving portion is constrictable around a length of the elongated structure length. The receiving portion may comprise a wire and the capturing portion may comprise a collar, wherein at least a portion of the collar is movable over the eyelet to constrict the wire around the length of the elongated structure length received in the eyelet.

Claims

1. A device for removing from a patient a previously implanted elongated structure, the device comprising:

a gripping member, said gripping member comprising a pair of generally adjacent wire lengths, and a collar having a passageway extending therealong, each of said generally adjacent wire lengths received in said collar passageway and positioned such that a segment of each wire length extends distally from the passageway, said segments aligned to define an eyelet therebetween, said eyelet configured and arranged for receiving a length of said implanted elongated structure therein, wherein both of said wire length segments are simultaneously movable relative to said collar such that upon said relative movement said eyelet constricts around said implanted elongated structure length.

2. The device of claim 1, wherein at least a portion of said collar is movable over said eyelet for constricting said eyelet around said elongated structure length.

3. The device of claim 1, wherein said wire lengths have respective distal end portions, said distal end portions being engaged by at least one of twisting, soldering, welding, and adhering.

4. The device of claim 1, wherein said collar has an outer diameter not exceeding about 2 mm (0.079 inch).

5. The device of claim 1, wherein said collar has two lumens aligned generally side-by-side along a length of said collar, one of said wire lengths extending through each of said lumens.

6. The device of claim 1, wherein said pair of generally adjacent wire lengths comprise an elongated wire structure folded back upon itself.

7. The device of claim 1, wherein each of said segments is configured to comprise a high point along said wire length, said high points defining said eyelet.

8. The device of claim 1, wherein said adjacent wire lengths comprise a terminal loop, said terminal loop defining said eyelet.

9. The device of claim 1, wherein said collar comprises an inside diameter sized to receive said constricted eyelet and said implanted elongated structure length.

10. The device of claim 9, wherein said inside diameter of said collar comprises a reduced diameter proximal end portion.

11. The device of claim 1, wherein each wire length segment has a terminal end, and wherein said terminal end of a first wire segment is fixedly engaged with a terminal end of a second wire segment.

12. The device of claim 11, wherein said terminal ends are engaged by at least one of twisting, soldering, and welding.

13. A device for removing from a patient a previously implanted elongated structure, the device comprising:

a gripping member, said gripping member comprising a pair of generally adjacent wire lengths, and a collar having a passageway extending therealong, each of said generally adjacent wire lengths received in said collar passageway and positioned such that a segment of each wire length extends distally from the passageway, each said segment having a terminal distal end, said respective terminal ends engaged to one another by one of twisting, soldering, and welding, said segments aligned upon said engagement to define an eyelet therebetween, said eyelet configured and arranged for receiving a length of said implanted elongated structure therein, said collar movable relative to said wire length segments and dimensioned relative to said eyelet such that upon said movement said eyelet constricts around said implanted elongated structure length.

14. The device of claim 13, wherein said respective terminal ends are engaged to define a wire tip, said wire tip including solder applied thereto.

15. The device of claim 13, wherein said collar has two lumens aligned generally side-by-side along a length of said collar, one of said wire lengths extending through each of said lumens.