Method and apparatus for installing cannula

• US 20030018340A1
• Filed: 06/28/2002
• Published: 01/23/2003
• Est. Priority Date: 06/29/2001
• Status: Abandoned Application

• Current Assignee: Thomas P. Branch
• Original Assignee: Thomas P. Branch
• Inventors: Branch, Thomas P.
• Application Number:
  US10/186,340
• Publication Number:
  US 20030018340A1
• Time in Patent Office: Days
• US Class Current: 606/96
• 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 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1778 for the shoulder
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2090/08021 of the patient or his organs

Abstract

A system is disclosed for stabilizing a cannula or tube which provides access into the body during a laparoscopic or an arthroscopic procedure. One or more fastening tubes or cannula are attached adjacent to a central tube or working cannula. Elongate fastening members are passed through the fastening cannula and are attached to bone which stabilizes the working cannula. This stabilization allows the surgeon to operate through the working cannula without concern that the cannula apparatus will be displaced. Furthermore, one of the wires can be detached and the cannula system rotated about the remaining secured fastener with the first fastener being re-attached at a new location. This technique allows the surgeon to place implants at uniform distances from one another without the cannula apparatus losing contact with the bone.

Claims

1. A cannula apparatus for removeably attaching a working cannula to bone, said cannula apparatus comprising:

a working cannula providing access to a treatment area through an elongated cannula passageway;

a cavity defining portion defining one or more elongated cavities adjacent to said working cannula passageway extending to a position adjacent to said bone when said working cannula is positioned at said treatment area; and

an elongate fastening member passing through said cavity and adapted to be removeably attached to said bone.

2. A cannula apparatus as described in claim 1, wherein said cavity defining portion comprises a fastening cannula attached adjacent to said working cannula.

3. A cannula apparatus as described in claim 2, wherein a plurality of spaced apart fastening cannula are attached to said working cannula.

4. A cannula apparatus as described in claim 1, wherein said working cannula has an inner surface and an outer surface, said cavity defining portion forms said elongated cavity between said inner and outer surfaces of said working cannula.

5. A cannula apparatus as described in claim 4, wherein a plurality of spaced apart cavities are formed between said inner and outer surfaces.

6. A cannula apparatus as described in claim 1, wherein the cannula apparatus is formed from plastic.

7. A cannula apparatus as described in claim 1, wherein the cannula apparatus is formed from a metal.

8. A cannula apparatus as described in claim 1, wherein said elongate fastening member comprises a wire with a proximal end and distal end, said distal end including a self tapping configuration.

9. A cannula apparatus removeably attaching a working cannula to bone, said cannula apparatus comprising:

a working cannula providing access to treatment area, having an inner and an outer surface;

one or more fastening cannulae adjacent to said working cannula; and

one or more wire members adapted to be received within said fastening cannula, said wire having a proximal end and distal end, said distal end including a self tapping configuration.

10. A cannula apparatus as described in claim 9, wherein said fastening cannula is smaller in diameter than the working cannula

11. A cannula apparatus as described in claim 9, wherein a pair of fastening cannulae are located adjacent to said working cannula and are spaced apart.

12. A cannula apparatus as described in claim 9, wherein said cannula apparatus is formed from plastic.

13. A cannula apparatus as described in claim 9, wherein the cannula apparatus is formed from a metal.

15. Method as described in claim 14, further comprising:

re-attaching said first fastener to said bone at a different location.

14. Method for using a cannula apparatus including a plurality of fasteners in conjunction with a bone, comprising:

attaching a first fastener to said bone;

attaching a second fastener to said bone;

detaching said first fastener; and

rotating said cannula apparatus about said second fastener.