IP Library Patent Application 11772668
Patent Application
App. No. 11/772,668

SURGICAL RETRACTOR AND METHOD OF USE

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Quick Facts
Patent No.
US None
App. No.
11/772,668
Abstract

A surgical retractor may be provided for a surgical procedure such as spinal surgery. The surgical retractor may include a pair of tissue retainers and a pair of separators. The separators may be positioned in channels of the tissue retainers to move distal ends of the tissue retainers apart, retract tissue, and enlarge an opening in a patient. In some embodiments, a nerve root retractor may be removably coupled to a surgical retractor to retain dura on one side of the spinal column and provide working room for the surgical procedure.

Claims (28)

1 . A surgical retractor, comprising:

a first tissue retainer, the first tissue retainer having one or more angled channels;

a second tissue retainer, the second tissue retainer having one or more angled channels; and

one or more separators, wherein a first portion of a separator is configured to couple to an angled channel of the first tissue retainer and a second portion of the separator is configured to couple to an angled channel of the second tissue retainer; and wherein the separator is configured to move a distal end of the first tissue retainer away from a distal end of the second tissue retainer when the separator is moved down the angled channels of the first tissue first tissue retainer and the second tissue retainer.

2 . The surgical retractor of claim 1 , further comprising a nerve root retractor configured to couple to a separator.

3 . The surgical retractor of claim 1 , further comprising a nerve root retractor configured to couple to the first tissue retainer.

4 . The surgical retractor of claim 1 , further comprising an optical cable configured to couple an illumination source to the first tissue retainer.

5 . The surgical retractor of claim 1 , further comprising an optical cable configured to couple an illumination source to the surgical retractor.

6 . The surgical retractor of claim 1 , wherein the first tissue retainer comprises an extender configured to allow the length of the first tissue retainer to be increased during use.

7 . The surgical retractor of claim 1 , wherein the first tissue retainer is coupled to the second tissue retainer by at least one member.

8 . A retractor system for a spinal surgery procedure; comprising:

a surgical retractor configured to enlarge a surgical opening in a patient; and

a nerve root retractor configured to removable couple to the surgical retractor to allow the retention of dura of a patient to one side of a spinal column.

9 . The retractor system of claim 8 , wherein the surgical retractor comprises a pair of tissue retainers and a pair of separators, wherein insertion of the separators between the tissue retainers enlarges the surgical opening.

10 . The retractor system of claim 9 , wherein the nerve root retractor is configured to couple to a separator of the surgical retractor.

11 . The retractor system of claim 9 , wherein the nerve root retractor is configured to couple to a tissue retainer of the surgical retractor.

12 . The retractor system of claim 8 , wherein the surgical retractor comprises a set of keyways, and wherein the nerve root retractor comprises a protrusion configured to complement the keyways to allow the nerve root retractor to be removably coupled to the surgical retractor.

13 . The retractor system of claim 8 , wherein the nerve root retractor comprises a hook configure to engage a portion of the surgical retractor, and wherein the hood is slidable relative to an end of the nerve root retractor.

14 . The retractor system of claim 8 , wherein a retainer portion of the nerve root retractor is offset from an upper portion of the nerve root retractor.

15 . A method of retraction during surgery, comprising:

placing a pair of tissue retainers in an opening in a patient;

coupling at least one separator to the tissue retainers; and

moving the separator downwards to separate distal ends of the tissue retainers, retract tissue and form a larger opening.

16 . The method of claim 15 , wherein a first tissue retainer of the pair of tissue retainers is coupled to a second tissue retainer of the pair of tissue retainers.

17 . The method of claim 15 , further comprising coupling a first separator to a second separator before moving the separators downwards to separate distal ends of the tissue retainers.

18 . The method of claim 15 , further comprising removably coupling a nerve root retractor to the separator.

19 . The method of claim 15 , further comprising removably coupling a nerve root retractor to one of the tissue retainers.

20 . The method of claim 15 , wherein moving the separator downwards comprises forcing the separator along angled channels in the tissue retainers.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2009
From: ARAGHI, ALI, D.O.
To: INNOVATIVE SPINAL TECHNOLOGIES, INC.
Reel/Frame 023279/0184 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2009
From: WARREN E. AGIN, QUALIFIED CHAPTER 7 TRUSTEE IN BANKRUPTCY FOR INNOVATIVE SPINAL TECHNOLOGIES, INC.
To: THEKEN SPINE, LLC
Reel/Frame 023233/0395 →
TERMINATION AND RELEASE OF SECURITY INTEREST Recorded Sep 14, 2009
From: SILICON VALLEY BANK; GE BUSINESS FINANCIAL SERVICES, INC.
To: THEKEN SPINE, LLC
Reel/Frame 023228/0001 →
SECURITY AGREEMENT Recorded Oct 28, 2008
From: INNOVATIVE SPINAL TECHNOLOGIES, INC.
To: SILICON VALLEY BANK, AS AGENT AND AS A LENDER; GE BUSINESS FINANCIAL SERVICES INC., F/K/A MERRILL LYNCH BUSINESS FINANCIAL SERVICES INC., AS A LENDER
Reel/Frame 021750/0493 →