
US Patent No: 5,921,918
Number of patents in Portfolio can not be more than 2000
Surgical retractor
Stats
-
Jul 13, 1999
Issued date -
Mar 26, 1997
filing date -
08/826,268
serial no -
Expired
status
Importance
Abstract
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 When the plunger is in the first axial position, the wire end is withdrawn within the angled end of the introducer needle.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.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,364,410 Percutaneous suture externalizer | 58 | 1993 | |
| 5,501,654 Endoscopic instrument having articulating element | 148 | 1994 | |
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| 5,450,842 Endoscopic surgical retractor | 35 | 1993 | |
| 5,512,037 Percutaneous surgical retractor | 119 | 1994 | |
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| 5,106,369 Percutaneous umbilical cord stabilizer | 23 | 1990 | |
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| 5,405,354 Suture driver | 66 | 1993 | |
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| 4,935,008 Double lumen introducing needle | 32 | 1988 | |
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| 5,242,456 Apparatus and methods for clamping tissue and reflecting the same | 174 | 1992 | |
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| 5,474,056 Suspension and retraction system for endoscopic surgery and method for using same | 9 | 1994 | |
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| 5,250,054 Intracorporeal knot tying apparatus and method | 80 | 1992 | |
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| 5,289,817 Endoscopic surgical retractor | 29 | 1991 | |
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| 5,172,701 Single use automated soft tissue aspiration biopsy device | 53 | 1990 | |
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| 4,796,626 Tourniquet tube | 26 | 1987 | |
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| 4,616,656 Self-actuating breast lesion probe and method of using | 92 | 1985 | |
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| 4,641,652 Applicator for tying sewing threads | 123 | 1985 | |
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| 4,779,616 Surgical suture-snagging method | 83 | 1987 | |
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| 5,387,227 Method for use of a laparo-suture needle | 86 | 1992 | |
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| 4,230,123 Needle sheath complex and process for decompression and biopsy | 130 | 1978 | |
| 4,378,019 Hair implanting appliance | 22 | 1980 | |
| 4,517,965 Tissue retractor | 74 | 1983 | |
| 4,874,375 Tissue retractor | 58 | 1987 | |
| 5,217,024 Tissue sampling device with visual and tactile indicator | 69 | 1992 | |
| 5,281,237 Surgical stitching device and method of use | 210 | 1992 | |
| 5,501,692 Laparoscopic suture snare | 90 | 1994 | |