Surgical retractor
First Claim
Patent Images
1. A surgical retractor for manipulating body tissue, comprising:
- a) a handle assembly;
b) an elongated body extending from said handle assembly and defining a longitudinal axis; and
c) a retractor assembly operatively with said body and defining a uniplanar curvilinear tissue manipulation surface having an area which is selectively variable, a periphery bounding said which is defined by first and second boundary members and an expandable membrane which solely occupies said area bounded by said boundary members, a distal end of said first boundary member being pivotably associated with a distal end of said second boundary member, said second boundary member being substantially collinear with said elongated body, and said retractor assembly being movable between a first position wherein the area of said tissue manipulation surface is minimized and a second position wherein the area of said tissue manipulation surface is maximized.
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Accused Products
Abstract
A surgical retractor is provided for manipulating body tissue during endoscopic and laparoscopic surgical procedures which includes a handle assembly, an elongated body extending from the handle assembly, and a retractor assembly operatively associated with the body and defining a curvilinear tissue manipulation surface having an area which is selectively variable. In operation the retractor assembly is movable between a first position wherein the area of the tissue manipulation surface is minimized and a second position wherein the area of the tissue manipulation surface is maximized. The retractor can be designed for one handed operation.
127 Citations
30 Claims
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1. A surgical retractor for manipulating body tissue, comprising:
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a) a handle assembly; b) an elongated body extending from said handle assembly and defining a longitudinal axis; and c) a retractor assembly operatively with said body and defining a uniplanar curvilinear tissue manipulation surface having an area which is selectively variable, a periphery bounding said which is defined by first and second boundary members and an expandable membrane which solely occupies said area bounded by said boundary members, a distal end of said first boundary member being pivotably associated with a distal end of said second boundary member, said second boundary member being substantially collinear with said elongated body, and said retractor assembly being movable between a first position wherein the area of said tissue manipulation surface is minimized and a second position wherein the area of said tissue manipulation surface is maximized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surgical retractor for manipulating body tissue comprising:
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a) a handle assembly; b) an elongated body extending from said handle assembly and defining a longitudinal axis; and c) a retractor assembly operatively associated with said body and defining a curvilinear tissue manipulation surface having an area which is selectively variable, said retractor assembly including; i) first and second boundary members defining a continuous periphery of said tissue manipulation surface, at least a portion of said periphery being substantially collinear with said longitudinal axis; and ii) a planar expandable member solely occupying the area bounded by said boundary members, said retractor assembly being movable between a first position wherein the area bounded by said boundary members is minimized and a second position wherein the area bounded by said boundary members is maximized. - View Dependent Claims (14)
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15. An endoscopic device adapted for one hand manipulation comprising:
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a) a handle assembly; b) an elongated tubular member extending from said handle assembly having a proximal end portion and a distal end portion; c) at least one elongated member slidable within said elongated tubular member, said elongated member having a proximal end portion, a distal end portion, and being movable between a first proximal position and a second distal position; d) a surgical tool disposed at the distal end of said elongated member; e) at least one resilient biasing member disposed within said handle assembly and operatively connected to said elongated member, said biasing member adapted to urge said elongated member and said surgical tool from said first proximal position toward said second distal position, wherein said surgical tool is at least partially disposed distal of said elongated tubular member when said elongated member is in at least one of said positions; and f) braking means for selectively preventing said biasing member from urging said elongated member toward said distal position, said elongated member configured to be stopped at a plurality of positions between said first and second positions. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An endoscopic device adapted for one hand manipulation comprising:
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a) a handle assembly; b) an elongated tubular member extending from said handle assembly having a proximal end portion and a distal end portion; c) at least one elongated member slidable within said elongated tubular member, said elongated member having a proximal end portion, a distal end portion, and being movable between a first proximal position and a second distal position; d) a surgical tool disposed at the distal end of said elongated member; e) at least one resilient biasing member disposed within said handle assembly and operatively connected to said elongated member, said biasing member adapted to urge said elongated member and said surgical tool from said first proximal position toward said second distal position, wherein said surgical tool is at least partially disposed distal of said elongated tubular member when said elongated member is in at least one of said positions; and f) actuating means for selectively controlling movement of said elongated member between said first and second positions. - View Dependent Claims (28, 29, 30)
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Specification