US Patent No: 5,921,918

Number of patents in Portfolio can not be more than 2000

Surgical retractor

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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 When the plunger is in the first axial position, the wire end is withdrawn within the angled end of the introducer needle.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)

  • Assignment data not available. Check USPTO

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 14 1261

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ETHICON, INC. (2)
5,364,410 Percutaneous suture externalizer 83 1993
5,501,654 Endoscopic instrument having articulating element 203 1994
 
United States Surgical Corporation (2)
5,450,842 Endoscopic surgical retractor 38 1993
5,512,037 Percutaneous surgical retractor 137 1994
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (1)
5,106,369 Percutaneous umbilical cord stabilizer 23 1990
 
COOK MEDICAL TECHNOLOGIES LLC (1)
5,405,354 Suture driver 81 1993
 
Danron, Inc. (1)
4,935,008 Double lumen introducing needle 32 1988
 
KENSEY NASH CORPORATION (1)
5,242,456 Apparatus and methods for clamping tissue and reflecting the same 235 1992
 
LES ENTERPRISES LABORIE, INC. (1)
5,474,056 Suspension and retraction system for endoscopic surgery and method for using same 10 1994
 
LI MEDICAL TECHNOLOGIES, INC. (1)
5,250,054 Intracorporeal knot tying apparatus and method 98 1992
 
LINVATEC CORPORATION (1)
5,289,817 Endoscopic surgical retractor 33 1991
 
MEDICAL DEVICE TECHNOLOGIES, INC. (1)
5,172,701 Single use automated soft tissue aspiration biopsy device 66 1990
 
MEDTRONIC, INC. (1)
4,796,626 Tourniquet tube 26 1987
 
MITEK SURGICAL PRODUCTS, INC. (1)
4,616,656 Self-actuating breast lesion probe and method of using 114 1985
 
Richard Wolf GmbH (1)
4,641,652 Applicator for tying sewing threads 153 1985
 
SMITH & NEPHEW, INC. (1)
4,779,616 Surgical suture-snagging method 95 1987
 
VASCUTECH ACQUISITION LLC (1)
5,387,227 Method for use of a laparo-suture needle 98 1992
 
Other [Check patent profile for assignment information] (7)
4,230,123 Needle sheath complex and process for decompression and biopsy 136 1978
4,378,019 Hair implanting appliance 22 1980
4,517,965 Tissue retractor 75 1983
4,874,375 Tissue retractor 61 1987
5,217,024 Tissue sampling device with visual and tactile indicator 95 1992
5,281,237 Surgical stitching device and method of use 275 1992
5,501,692 Laparoscopic suture snare 118 1994

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ATROPOS LIMITED (1)
8,157,817 Surgical instrument 6 2003
 
DEPUY MITEK, INC. (1)
6,620,166 Suture buttress system 139 1998
 
GREATBATCH LTD. (1)
6,997,872 Variable force surgical retractor assembly 1 2002
 
UNIVERSITY OF UTAH (1)
8,588,936 Spinal cord stimulation system and methods of using same 0 2011
 
Other [Check patent profile for assignment information] (1)
7,125,411 Cannula delivery and support system 1 2003