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US5582577A Expired / Lapsed US ⏱️ 0.0 years remaining

Surgical retractor including central elastic member

Assignee: Cook Medical Technologies LLC
•
Filing: 1995-02-13
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Granted: 1996-12-10
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Expires: 2015-02-13
📄 Original PDF 🌐 Google Patents

Abstract

Abstract A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) useful in open surgical procedures, or in laparoscopic or other endoscopic procedures, includes a plurality of tissue-engaging elements (12, 14) (such as a plurality of atraumatic hooks (18)) connected by a central elastic member (16). The elastic member (16) is preferably composed of a medical grade rubber, silicone or fluoropolymer elastomer, and is preferably configured or shaped as an O-ring (22) or regular polygon (66, 74, 88, or 92). When the retractor (10) is intended and particularly adapted for use in laparoscopic or other endoscopic procedures, the elastic member (16) is collapsible in a direction transverse to an imaginary line drawn between the plurality of tissue engaging elements (12, 14), so as to allow the retractor (10) to be passed through a surgical cannula into and out of the patient's body during the procedure. Alternatively, when the retractor (10) is intended and particularly adapted for use in any surgical procedure (that is, not limited to use in laparoscopic procedures), the elastic member (16) is directly connected to the plurality of tissue-engaging elements (12, 14), such that there are no disparate, rigid intermediate portions between the individual tissue-engaging elements (12, 14). The former embodiment is particularly advantageous in that retraction can be entirely performed within the body space enclosing the surgical site. Both embodiments are particularly advantageous in being of simple and inexpensive construction, yet allowing the elimination of the surgical assistant previously required for performing retraction, and saving the time needed for the surgeon to instruct such an assistant during retraction.

Inventors

  • 👤 Greg O. Lund
  • 👤 Frederick D. Roemer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 05:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/0218; A61B17/0293

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 121 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, comprising: a plurality of tissue-engaging elements (12 and 14); and an elastic member (16) connecting the plurality of tissue-engaging elements (12 and 14); wherein the elastic member (16) is collapsible into and through the laparoscopic surgical cannula (100), and wherein the plurality of tissue-engaging elements (12 and 14) are shaped and dimensioned so as to allow the retractor (10) to be passed through the laparoscopic surgical cannula (100) into and out of the body, so that the retractor (10) can be contained completely within the body during the laparoscopic procedure.
Claim 2
Dependent Claim 121 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, comprising: a plurality of tissue-engaging elements (12 and 14); and an elastic member (16) connecting the plurality of tissue-engaging elements (12 and 14); wherein the elastic member (16) is collapsible into and through the laparoscopic surgical cannula (100), and wherein the plurality of tissue-engaging elements (12 and 14) are shaped and dimensioned so as to allow the retractor (10) to be passed through the laparoscopic surgical cannula (100) into and out of the body, so that the retractor (10) can be contained completely within the body during the laparoscopic procedure.
Claim 3
Dependent Claim 16 words
The surgical retractor (10) of claim 1, wherein the elastic member (16) comprises an O-ring (22).
Claim 4
Dependent Claim 30 words
The surgical retractor (10) of claim 1, wherein at least one (12 or 14) of the plurality of tissue-engaging elements (12 and 14) is slidable along the elastic member (16).
Claim 5
Dependent Claim 23 words
The surgical retractor (10) of claim 1, wherein the elastic member (16) is composed of a medical grade rubber, silicone or fluoropolymer elastomer.
Claim 6
Dependent Claim 23 words
The surgical retractor (10) of claim 1, wherein the elastic member (16) is shaped as a regular polygon (66, 74, 88, or 92).
Claim 7
Dependent Claim 19 words
The surgical retractor (10) of claim 1, wherein the plurality of tissue-engaging elements (12 and 14) are generally rigid.
Claim 8
Dependent Claim 28 words
The surgical retractor (10) of claim 1, wherein at least one (12 or 14) of the plurality of tissue-engaging elements (12 and 14) comprises an atraumatic hook (18).
Claim 9
Dependent Claim 29 words
The surgical retractor (10) of claim 1, wherein at least one (12 or 14) of the plurality of tissue-engaging elements (12 and 14) comprises a blade-type tissue-holding element (27).
Claim 10
Dependent Claim 27 words
The surgical retractor (10) of claim 1, wherein the elastic member (16) includes an interior brace (57) located between the plurality of tissue-engaging elements (12 and 14).
Claim 11
Dependent Claim 22 words
The surgical retractor (10) of claim 9, wherein the interior brace (57) is continuous with the remainder of the elastic member (16).
Claim 12
Dependent Claim 28 words
The surgical retractor (10) of claim 1, wherein the elastic member (16) includes an interior limiting web (80) located between the plurality of tissue-engaging elements (12 and 14).
Claim 13
Dependent Claim 144 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, comprising: a pair of tissue-engaging elements (12 and 14); and an elastic member (16) directly connecting the pair of tissue-engaging elements (12 and 14); wherein the tissue-engaging elements (12 and 14) comprise atraumatic hooks (18); wherein the elastic member (16) comprises an O-ring (22) composed of a medical grade silicone elastomer collapsible into and through the laparoscopic surgical cannula (100); and wherein the atraumatic hooks (18) are slidable along the O-ring (22) and are shaped and dimensioned so as to allow the retractor (10) to be passed through the cannula (100) into and out of the body; so that the retractor (10) can be contained completely within the body, during the laparoscopic procedure.
Claim 14
Dependent Claim 144 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, comprising: a pair of tissue-engaging elements (12 and 14); and an elastic member (16) directly connecting the pair of tissue-engaging elements (12 and 14); wherein the tissue-engaging elements (12 and 14) comprise atraumatic hooks (18); wherein the elastic member (16) comprises an O-ring (22) composed of a medical grade silicone elastomer collapsible into and through the laparoscopic surgical cannula (100); and wherein the atraumatic hooks (18) are slidable along the O-ring (22) and are shaped and dimensioned so as to allow the retractor (10) to be passed through the cannula (100) into and out of the body; so that the retractor (10) can be contained completely within the body, during the laparoscopic procedure.
Claim 15
Dependent Claim 190 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, consisting essentially of: a pair of tissue-engaging elements (12 and 14); and an elastic member (16) directly connecting the plurality of tissue-engaging elements (12 and 14); wherein at least one of the tissue-engaging elements (12 and 14) consists of an atraumatic hook (18); wherein the elastic member (16) is composed of a medical grade silicone elastomer; wherein the tissue-engaging elements (12 and 14) include shank ends (24) looped about but not compressing the elastomer of the elastic member (16), whereby the tissue-engaging elements (12 and 14) are slidable along the elastic member (16); and wherein the elastic member (16) is collapsible into and through the laparoscopic surgical cannula (100), and wherein the pair of tissue-engaging elements (12 and 14) are shaped and dimensioned so as to allow the retractor (10) to be passed through the cannula (100) into and out of the body so that the retractor (10) can be contained completely within the body during the laparoscopic procedure.
Claim 16
Dependent Claim 190 words
A surgical retractor, retainer, tensioner, tenaculum, spreader or stabilizer (10) particularly adapted for facile introduction into and removal from the body through a laparoscopic surgical cannula (100) during a laparoscopic procedure, consisting essentially of: a pair of tissue-engaging elements (12 and 14); and an elastic member (16) directly connecting the plurality of tissue-engaging elements (12 and 14); wherein at least one of the tissue-engaging elements (12 and 14) consists of an atraumatic hook (18); wherein the elastic member (16) is composed of a medical grade silicone elastomer; wherein the tissue-engaging elements (12 and 14) include shank ends (24) looped about but not compressing the elastomer of the elastic member (16), whereby the tissue-engaging elements (12 and 14) are slidable along the elastic member (16); and wherein the elastic member (16) is collapsible into and through the laparoscopic surgical cannula (100), and wherein the pair of tissue-engaging elements (12 and 14) are shaped and dimensioned so as to allow the retractor (10) to be passed through the cannula (100) into and out of the body so that the retractor (10) can be contained completely within the body during the laparoscopic procedure.
Claim 17
Dependent Claim 17 words
The surgical retractor (10) of claim 13, wherein the elastic member (16) consists of an O-ring (22).
Claim 18
Dependent Claim 23 words
The surgical retractor (10) of claim 13, wherein the elastic member (16) is composed of a medical grade rubber, silicone or fluoropolymer elastomer.
Claim 19
Dependent Claim 23 words
The surgical retractor (10) of claim 13, wherein the elastic member (16) is shaped as a regular polygon (66, 74, 88, or 92).
Claim 20
Dependent Claim 19 words
The surgical retractor (10) of claim 13, wherein the pair of tissue-engaging elements (12 and 14) are generally rigid.
Claim 21
Dependent Claim 21 words
The surgical retractor (10) of claim 13, wherein each of tissue-engaging elements (12 and 14) consists of an atraumatic hook (18).
Claim 22
Dependent Claim 25 words
The surgical retractor (10) of claim 13, wherein the other of the pair of tissue-engaging elements (14 and 12) consists of blade-type tissue-holding element (27).
Claim 23
Dependent Claim 27 words
The surgical retractor (10) of claim 13, wherein the elastic member (16) includes an interior brace (57) located between the pair of tissue-engaging elements (12 and 14).
Claim 24
Dependent Claim 22 words
The surgical retractor (10) of claim 20, wherein the interior brace (57) is continuous with the remainder of the elastic member (16).
Claim 25
Dependent Claim 28 words
The surgical retractor (10) of claim 13, wherein the elastic member (16) includes an interior limiting web (80) located between the pair of tissue-engaging elements (12 and 14).

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-12-10 2000-06-10 2000-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-12-10 2004-06-10 2004-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-12-10 2008-06-10 2008-12-10 $7700.00 Window Closed / Lapsed

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