IP Library Granted Patent US 9,381,007
Granted Patent B2
US 9,381,007 · App. 12/812,310 · Granted Jul 5, 2016

Tissue retractor and method of use thereof

Inventors: Bradley J. Sharp (Irvine, CA); Wayne A. Noda (Mission Viejo, CA); Stephen G. Bell (Eur Roma, IT)
Assignee: Specialty Surgical Instrumentation Inc.
A61B17/02A61B17/085A61B2017/00407A61B2017/0287
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Quick Facts
Patent No.
US 9,381,007
App. No.
12/812,310
Granted
Jul 5, 2016
Kind
B2
Abstract

A tissue retractor is disclosed. The tissue retractor includes: a base support unit having an underside that is adapted to be conformable and to be removably attachable to a surface proximate to an incision; and a retractable member substantially inelastic in its central longitudinal axis and flexible in at least one axis deviating from said central longitudinal axis, wherein the retractable member is adapted to receive the mounting portion of an at least one tissue hook, the at least one tissue hook having a tissue engagement portion and a mounting portion, wherein the tissue engagement portion is capable of engaging tissue to be retracted, wherein said retractable member is retractable away from the incision, such that the tissue engagement portion of the tissue hook retracts tissue to which it is engaged, wherein said retractable member has a first end and a second end, wherein said retractable member is integrally formed with the base support unit via the first end, and wherein the second end of the retractable member has a securing mechanism for removably attaching the second end to a corresponding securing mechanism on the first end and/or the base support unit.

Claims (10)

1. A tissue retraction assembly, comprising:

a hook member formed with a distal tissue engagement feature configured to engage a periphery of an opening in a patient's body such that when the hook member is pulled away from the opening, the distal engagement feature remains in contact with the periphery of the opening to pull the periphery outward, the hook member also being formed with a proximal aperture;

a flexible strap extending through the proximal aperture of the hook member to form a loop, the strap defining first and second end segments; and

a flexible base defining a bottom surface for conforming to a portion of the patient without surrounding the opening in the patient's body, the bottom surface having an adhesive thereon for sticking to a surface, the first end segment of the strap being formed integrally with the base, the second end segment of the strap being removably engageable by hand with a top surface of the base such that the second end segment can be detached from the base by hand, pulled to cinch the loop formed by the strap and thereby pull the hook member to retract tissue away from the opening in the patient's body, and reattached to the top surface of the base by simply pressing the second end segment onto the top surface of the base by hand to thereby hold the loop cinched.

2. The assembly of claim 1 , wherein the distal tissue engagement feature includes three curved fingers.

3. A tissue retraction assembly, comprising:

a hook member formed with a distal tissue engagement feature configured to engage a periphery of an opening in a patient's body such that when the hook member is pulled away from the opening, the distal engagement feature remains in contact with the periphery of the opening to pull the periphery outward, the hook member also being formed with a proximal aperture;

a flexible strap extending through the proximal aperture of the hook member to form a loop, the strap defining a first end and a remainder segment extending from the first end to a second end of the strap; and

a flexible base defining a bottom surface for conforming to a portion of the patient without surrounding the opening in the patient's body, the base being wider than the strap, the first end of the strap being made unitarily with the base, the remainder segment of the strap being removably engageable by hand with a top surface of the base such that the remainder segment can be detached from the base by hand, pulled to cinch the loop formed by the strap and thereby pull the hook member to retract tissue away from the opening in the patient's body, and reattached to the top surface of the base by simply pressing the remainder segment onto the top surface of the base by hand to thereby hold the loop cinched.

4. The assembly of claim 3 , wherein the distal tissue engagement feature includes three curved fingers.

Assignments (7)
MERGER Recorded Dec 15, 2023
From: SPECIALTY SURGICAL INSTRUMENTATION, INC.
To: ASPEN SURGICAL PRODUCTS, INC.
Reel/Frame 066033/0324 →
RELEASE OF SECURITY INTEREST Recorded Oct 25, 2022
From: CAPITAL ONE, NATIONAL ASSOCIATION
To: SYMMETRY SURGICAL INC.; SPECIALTY SURGICAL INSTRUMENTATION, INC.
Reel/Frame 061770/0816 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 039376 FRAME 0627. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST. Recorded Apr 3, 2017
From: SYMMETRY SURGICAL INC.; SPECIALTY SURGICAL INSTRUMENTATION, INC.
To: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 042138/0125 →
SECURITY INTEREST Recorded Jul 18, 2016
From: SYMMETRY SURGICAL INC.; SPECIALTY SURGICAL INSTRUMENTATION, INC.
To: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 039376/0627 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2016
From: NANYANG TECHNOLOGICAL UNIVERSITY
To: SPECIALTY SURGICAL INSTRUMENTATION, INC.
Reel/Frame 037420/0888 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2016
From: INSIGHTRA MEDICAL, INC.
To: SPECIALTY SURGICAL INSTRUMENTATION, INC.
Reel/Frame 037421/0076 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2010
From: SHARP, BRADLEY J.; NODA, WAYNE A.; BELL, STEPHEN G.
To: NANYANG TECHNOLOGICAL UNIVERSITY; INSIGHTRA MEDICAL, INC.
Reel/Frame 024658/0762 →
Continuity (1)
Related Publication 20100286481A1 · Nov 11, 2010