Surgical tool

• US 8,088,138 B2
• Filed: 01/23/2006
• Issued: 01/03/2012
• Est. Priority Date: 01/23/2006
• Status: Active Grant

• Current Assignee: Heartware,Inc. (Medtronic Plc)
• Original Assignee: Heartware,Inc. (Medtronic Plc)
• Inventors: Pandey, Rajesh
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): NGUYEN, TIN DUC
• Application Number:
  US11/337,708
• Publication Number:
  US 20070173879A1
• Time in Patent Office: 2,171 Days
• Field of Search: 128/303.R, 604/51, 604/507, 604/272, 604/49, 604/8, 606/151, 606/190, 606/185, 606/167, 606/108, 606/148, 600/29, 600/30, 600/37, 403/342, 403/343, 403/296, 403/307
• US Class Current: 606/190
• CPC Class Codes: A61B 17/00008 Vein tendon strippers tube strippers A61M1/83
• CPC Class Codes: A61B 17/06109 Big needles, either gripped by hand or connectable to a handle
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/320044 Blunt dissectors blunt suture needles A61B2017/06085
• CPC Class Codes: A61B 2017/320056 Tunnelers

Abstract

A tunneling device for creating a pathway in subcutaneous tissue of a person'"'"'s body. The tunneling device includes a member having two ends, where each of the ends defines an insertion surface that facilitates the insertion of the ends into the subcutaneous tissue of the person'"'"'s body. The tunneling device includes an interchangeable handle connectable to each of the ends. The handle defines a grasping surface and an opening. The opening is configured to receive either of the ends. The grasping surface enables a user to securely hold the handle with one hand to forcibly move the member through the subcutaneous tissue of the person'"'"'s body to create the pathway in the subcutaneous tissue, and pull a cable of an implant device through the created pathway.

Claims

1. A tunneling device for creating a pathway in subcutaneous tissue of a person'"'"'s body, said tunneling device comprising:

a malleable member having a first end and a second end, each of said first end and said second end of said malleable member including an axial, internal thread;

a first collar rotatably fastened to said first end of said malleable member allowing rotation of said first collar about a longitudinal axis of said first end;

a cap screw having a head and a shaft, said shaft coupled with said axial, internal thread and a protruding portion of said shaft extending from said axial, internal thread to said head;

said first collar having a clearance hole extending through a portion of said first collar and including threads opposite said clearance hole; and

a first tip threaded into said threads of said first collar, the protruding portion of said shaft extending through said clearance hole to rotatably fasten said first collar to said first end of said malleable member; and

a handle configured to removably connect to said tunneling device,

said handle including a grasping surface and an opening, said opening configured to receive said first tip to removably connect said handle to said first tip,

said grasping surface configured to allow a user to securely hold the handle with one hand to forcibly move said malleable member through the subcutaneous tissue of the person'"'"'s body,

said first collar allowing the user to draw a cable into a surgical tunnel using said tunneling device with the risk of applying rotational torque to said cable being reduced.

2. The tunneling device of claim 1, wherein said malleable member further includes at least one tapered insertion surface adjacent to at least one of said first end and said second end.

3. The tunneling device of claim 1, wherein said malleable member further includes a first tapered insertion surface adjacent to said first end and a second tapered insertion surface adjacent to said second end.

4. The tunneling device of claim 1, further comprising:

a second collar rotatably fastened to said second end of said malleable member allowing rotation of said second collar about a longitudinal axis of said second end; and

a second tip fastened to said second collar.

5. The tunneling device of claim 4, in which said handle is connected to one of said first tip and said second tip.

6. The tunneling device of claim 4, further comprising:

a coupler removably connected to one of said first tip and said second tip, said coupler adapted to couple said malleable member to an end of said cable.

7. The tunneling device of claim 4, wherein at least one of said first and said second tips include a tapered surface.

8. The tunneling device of claim 4, wherein each of said first and said second tips include a tapered surface.

9. The tunneling device claim 4, further comprising a coupler configured to join one of said first tip and said second tip and an end of a cable of an implant device securing said malleable member and said cable together, said coupler including a plurality of connectors, a first connector of said plurality of connectors configured to secure said coupler to said end of said cable, and a second connector of said plurality of connectors configured to secure one of said first tip and said second tip to said coupler.

10. The tunneling device of claim 4, wherein said first and second tips each include an annular groove proximal to said first and second collars.

11. The tunneling device of claim 10, wherein the handle includes an actuator, said actuator configured engage and disengage said handle from one of said first tip and said second tip.

12. The tunneling device of claim 11, wherein said handle includes a shaft and a spring positioned between said shaft and said actuator, wherein said actuator is configured to compress said spring and move said shaft to a position wherein said one of said first tip and said second tip is insertable into or releasable from said handle.

13. The tunneling device of claim 11, wherein said handle includes a post and a spring positioned between said post and said actuator, said post having a first diameter and a second smaller diameter,

said post initially engaging said annular groove of one of said first tip and said second tip inserted in said handle preventing said one of said first tip and said second tip from being removed from said handle, and

said spring biasing said post inwardly positioning said second diameter of said post adjacent to said one of said first tip and said second tip allowing said one of said first tip and said second tip to be removed from said handle.

14. A tunneling device for creating a pathway in subcutaneous tissue of a person'"'"'s body, said tunneling device comprising:

a flexible member having a first end and a second end, wherein said first end of said flexible member includes a threaded hole;

a first collar rotatably fastened to said first end of said flexible member allowing rotation of said first collar about a longitudinal axis of said first end;

a cap screw having a head and a shaft, said shaft coupled with said threaded hole and a protruding portion of said shaft extending from said threaded hole to said head;

said first collar having a clearance hole extending through a portion of said first collar and including threads opposite said clearance hole; and

a first tip, threaded into said threads of said first collar, the protruding portion of said shaft extending through said clearance hole to rotatably fasten said first collar to said first end of said flexible member, wherein said first tip includes a tapered insertion surface and an annular groove between said tapered insertion surface and said first collar.

15. The tunneling device of claim 14, further comprising:

a second collar rotatably fastened to said second end of said flexible member allowing rotation of said second collar about a longitudinal axis of said second end; and

a second tip fastened to said second collar, said second tip including a second tapered insertion surface and a second annular groove between said second tapered insertion surface and said second collar.

16. The tunneling device of claim 14, further comprising:

a handle configured to removably connect to said annular groove of said first tip.

17. The tunneling device of claim 16, wherein said handle further includes an opening and an engagement shaft having a first diameter and a second larger diameter, said engagement shaft extending through said handle, said engagement shaft configured to move between a first position and a second position within said handle, in said first position said first diameter is positioned across said opening in said handle allowing said first tip to be inserted into said opening of said handle, in said second position said second larger diameter is positioned across said opening and engages said annular groove of said first tip preventing said first tip from being removed from said opening of said handle.

18. The tunneling device of claim 14, further comprising:

a coupler configured to removably connect said first tip and an end of a cable of an implant device securing said flexible member and said cable together, said coupler including a first connector configured to secure said coupler to said end of said cable, and a second connector configured to secure said first tip to said coupler.

19. The tunneling device of claim 14, wherein said flexible member further includes a first tapered insertion surface adjacent to said first end.

20. The tunneling device of claim 19, wherein said flexible member further includes a second tapered insertion surface adjacent to said second end.