Automatic surgery retractor

Claim 2

In combination, a surgical operating table and a surgical retraction device for use therewith, said surgical retraction device comprising a movable support means selectively positionable along the operating table, an upright assembly rotatably mounted on said support means for selective rotation about a longitudinal axis thereof, a boom assembly pivotally mounted on said upright assembly for selective pivotal movement about said upright member, said boom assembly including a longitudinally movable arm member having a sEcuring end, at least one disposable strap member attached to said securing end and having a free end, a retraction instrument attached to said free end of the strap member and means for speedily and precisely controlling the position of at least the arm member.

Claim 3

A surgical retraction device as defined in claim 1 wherein the means for speedily and precisely positioning includes a transistorized precision servo positioner including a reversible DC motor coupled in working relation to said arm member.

Claim 4

A surgical retraction device as defined in claim 2 wherein the movable support member, the upright assembly and the arm member are all connected in a working relation to the precision servo positioner, said positioner being adapted to be actuated from a remote position.

Claim 5

A surgical retraction device as defined in claim 1 wherein the support means is provided with lockable wheel members for selectively moving the support means along a path, and track means are provided recessed into a floor along said path for positively guiding said wheel members along said path.

Claim 6

A surgical retraction device as defied in claim 1 wherein the disposable strap member is composed of a synthetic resin material having a predetermined tensile strength.

Claim 7

A surgical retraction device as defined in claim 5 wherein the disposable strap member and the retraction instrument comprise a single sterilizable and disposable unit.

Claim 8

A surgical retraction device as defined in claim 5 wherein the disposable strap member is provided with a plurality of substantially uniformly spaced perforations along the length thereof and a means adjacent the ends thereof for mating with one of said perforations for approximate adjustment of the length thereof.

Claim 9

A surgical retraction device as defined in claim 1 wherein an attachment means is fixedly secured to the securing end of the arm member, said attachment means having an adjustable tensioning means and a warning means in working relation therewith, said tensioning means having one end fixedly attached to said attachment means and the other end being free to move in response to tension on the strap member, said warning means being actuated by contact with said tensioning means.

Claim 10

A surgical retraction device as defined in claim 1 wherein a plurality of strap members are attached and uniformly spaced along the securing end of the arm member.

Claim 11

In combination, a surgical operating table and a surgical retraction device for use therewith, said surgical retraction device comprising, a support member adapted for selective movement along a floor so as to be selectively positioned along the operating table, an upright assembly rotatably mounted on said support member for selective angular positioning in respect to said support member, and upright assembly including a linearly movable rod member and a precision servo-positioning means for selectively and accurately moving said rod member along the vertical axis of said upright assembly, a boom assembly pivotally attached to an upper portion of said upright assembly for selective angular positioning thereof in respect to the vertical axis of said upright assembly, said boom assembly including a linearly movable arm member and a precision servo-positioning means for selectively and precisely moving said arm member along a longitudinal axis of said boom assembly, said precision servo-positioning means being adapted for actuation from a remote position, an attachment means fixedly secured to an end of said arm member, said attachment means having an adjustable tension means and a warning means in working relation therewith, said tension means having one end fixedly attached to said attachment means and the other end thereof free to move in response to tension, said warning means being fixed on said attachment means remote from said arm member and being actuated by contact with said tension means, a yoke member fixedly attached to said other end of the tensioning means and Having a portion thereof extending transversely to said arm member, a plurality of disposable strap members attached along said transversely extending portion of the yoke member in a spaced manner from each other, said strap members being composed of a synthetic resin material having a predetermined tensile strength, and a plurality of retraction instruments each individually attached to a free end of a strap member of said plurality of strap members for insertion into a surgical incision.

Claim 12

In combination, a surgical operating table and a surgical retraction device for use therewith, said surgical retraction device comprising, a support member adapted for selective movement along a floor so as to be selectively positioned along the operating table, an upright assembly rotatably mounted on said support member for selective angular positioning in respect to said support member, and upright assembly including a linearly movable rod member and a precision servo-positioning means for selectively and accurately moving said rod member along the vertical axis of said upright assembly, a boom assembly pivotally attached to an upper portion of said upright assembly for selective angular positioning thereof in respect to the vertical axis of said upright assembly, said boom assembly including a linearly movable arm member and a precision servo-positioning means for selectively and precisely moving said arm member along a longitudinal axis of said boom assembly, said precision servo-positioning means being adapted for actuation from a remote position, an attachment means fixedly secured to an end of said arm member, said attachment means having an adjustable tension means and a warning means in working relation therewith, said tension means having one end fixedly attached to said attachment means and the other end thereof free to move in response to tension, said warning means being fixed on said attachment means remote from said arm member and being actuated by contact with said tension means, a yoke member fixedly attached to said other end of the tensioning means and Having a portion thereof extending transversely to said arm member, a plurality of disposable strap members attached along said transversely extending portion of the yoke member in a spaced manner from each other, said strap members being composed of a synthetic resin material having a predetermined tensile strength, and a plurality of retraction instruments each individually attached to a free end of a strap member of said plurality of strap members for insertion into a surgical incision.

Claim 13

A surgical retraction device as defined in claim 1 wherein the upright assembly is selectively movable along the longitudinal axis thereof.

Claim 14

A surgical retraction device as defined in claim 11 wherein the upright assembly includes a vertical standard rotatably mounted on the support means and an auxiliary rod member supported on said vertical standard and linearly movable along the longitudinal axis of said upright assembly for selectively positioning the boom assembly.