US Patent No: 5,921,918

Number of patents in Portfolio can not be more than 2000

Surgical retractor

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An instrument for facilitating the use of sutures in laparoscopic surgical procedures includes a hollow housing defining an internal cavity. A plunger extends within the cavity of the housing and is supported therein for relative sliding movement between first and second axial positions. A spring disposed within the cavity urges the plunger to the first axial position relative to the housing. A hollow introducer needle is secured to the housing and extends co-axially therefrom, terminating in an angled tip having a sharp point. An actuator tube is disposed within the introducer needle and is secured to the plunger for axial movement therewith relative to the housing. A flexible wire is disposed within portions of the actuator tube and is secured thereto for axial movement with the plunger in the introducer needle. The wire is resiliently predisposed to form a curved loop in a wire end thereof. When the plunger is in the first axial position, the wire end is withdrawn within the angled end of the introducer needle. When the plunger is moved to the second axial position, the wire end of the wire is extended outwardly from the angled end of the introducer needle. The wire end tends to form an open loop with a C-, J-, or S-shape when extended outwardly from the introducer needle.

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First Claim

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Riza, Erol D 550 Riverside Dr., Rossford, OH 43460 15 2016

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (6)
* 4,378,019 Hair implanting appliance 22 1980
* 4,517,965 Tissue retractor 78 1983
* 4,874,375 Tissue retractor 78 1987
* 5,217,024 Tissue sampling device with visual and tactile indicator 125 1992
* 5,281,237 Surgical stitching device and method of use 377 1992
* 5,501,692 Laparoscopic suture snare 169 1994
 
KENSEY NASH CORPORATION (1)
* 5,242,456 Apparatus and methods for clamping tissue and reflecting the same 324 1992
 
Laborie Enterprises Inc. (1)
* 5,474,056 Suspension and retraction system for endoscopic surgery and method for using same 13 1994
 
Danron, Inc. (1)
* 4,935,008 Double lumen introducing needle 34 1988
 
MITEK SURGICAL PRODUCTS, INC. (1)
* 4,616,656 Self-actuating breast lesion probe and method of using 135 1985
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (1)
* 5,106,369 Percutaneous umbilical cord stabilizer 24 1990
 
MEDTRONIC, INC. (1)
* 4,796,626 Tourniquet tube 30 1987
 
LI MEDICAL TECHNOLOGIES, INC. (1)
* 5,250,054 Intracorporeal knot tying apparatus and method 138 1992
 
SMITH & NEPHEW, INC. (1)
* 4,779,616 Surgical suture-snagging method 109 1987
 
VASCUTECH ACQUISITION LLC (1)
* 5,387,227 Method for use of a laparo-suture needle 117 1992
 
ETHICON, INC. (2)
* 5,364,410 Percutaneous suture externalizer 124 1993
* 5,501,654 Endoscopic instrument having articulating element 351 1994
 
COOK MEDICAL TECHNOLOGIES LLC (1)
* 5,405,354 Suture driver 107 1993
 
MEDICAL DEVICE TECHNOLOGIES, INC. (1)
* 5,172,701 Single use automated soft tissue aspiration biopsy device 90 1990
 
LINVATEC CORPORATION (1)
* 5,289,817 Endoscopic surgical retractor 48 1991
 
Richard Wolf GmbH (1)
* 4,641,652 Applicator for tying sewing threads 216 1985
 
United States Surgical Corporation (2)
* 5,450,842 Endoscopic surgical retractor 45 1993
* 5,512,037 Percutaneous surgical retractor 165 1994
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
7,125,411 Cannula delivery and support system 5 2003
* 2005/0107,803 Cannula delivery and support system 9 2003
* 2009/0182,288 Flexible Medical Cannula 8 2009
 
TELEFLEX MEDICAL INCORPORATED (6)
8,992,549 Laparoscopic port site closure tool 9 2005
* 2006/0030,868 Laparoscopic port site closure tool 23 2005
9,326,784 Minimally invasive surgical assembly and methods 0 2009
* 2010/0016,884 Minimally Invasive Surgical Assembly and Methods 2 2009
8,926,639 Apparatus and methods for tissue closure 0 2010
9,326,757 Surgical instruments for laparoscopic aspiration and retraction 0 2010
 
UNIVERSITY OF UTAH (1)
8,588,936 Spinal cord stimulation system and methods of using same 0 2011
 
GREATBATCH LTD. (1)
6,997,872 Variable force surgical retractor assembly 1 2002
 
DEPUY MITEK, LLC (1)
* 6,620,166 Suture buttress system 287 1998
 
Atropos Limited (2)
8,157,817 Surgical instrument 18 2003
* 2003/0236,549 Surgical instrument 238 2003
 
CEDARS-SINAI MEDICAL CENTER (1)
* 2005/0080,434 Laparoscopic retractable dissector and suture and needle passer 39 2004
 
ARTHREX, INC. (1)
* 2009/0156,903 ARTICULATING HOOK ELEVATOR AND ARTHROSCOPIC METHOD FOR USING SAME 0 2008
 
Redent-Nova Ltd. (1)
* 2009/0176,189 METHOD AND SYSTEM FOR EXTRACTION OF BROKEN OBJECTS FROM ENCLOSED SPACES 0 2006
* Cited By Examiner