Surgical retractor array system

• US 4,434,791 A
• Filed: 03/15/1982
• Issued: 03/06/1984
• Est. Priority Date: 03/15/1982
• Status: Expired due to Term

• Current Assignee: Coopersurgical Incorporated (The Cooper Cos., Inc.)
• Original Assignee: Humboldt Productions, LLC
• Inventors: Darnell, W. Dale
• Primary Examiner(s): Coven, Edward M.
• Assistant Examiner(s): Hindenburg, Max F.
• Application Number:
  US06/358,082
• Time in Patent Office: 722 Days
• Field of Search: 128/20, 128/341, 128/345, 24/130
• US Class Current: 600/233
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 2017/0287 with elastic retracting members connectable to a frame, e.g. hooked elastic wires

Abstract

A surgical retractor system comprising an array of standardized, interchangeable, annular retractor frame sections of various shapes of which the end portions are configured to permit the interchangeable, hinged connection of the various shaped frames in forming generally annular retractor units adaptable to conform to fit the surface contours of various patients upon which a surgical operation is to be performed.

Claims

1. A universal, surgical retractor frame array system assemblable into a plurality of annular, hinged retractor frame units of various different annular shapes adaptable to conform to the surface contours of different body portions of surgical patients for retaining elastic tubing stay members inserted into notches spaced apart around each retractor frame unit periphery, said system comprising a plurality of rigid, planar frame sections of various outline shapes in the plane of the frame section, each frame section having a first straight end portion with a hole therethrough and a second straight end portion with a threaded hole therethrough, each frame section having a uniform transverse cross-section with contoured notches spaced apart and extending inwardly from a common side forming each retractor unit outer periphery when hingedly joined to other frame sections of said array system;

and threaded connecting means for insertion through said end portion holes to releasably and hingedly connect the two end portions of each said frame section to the end portions of other frame sections of said array system to permit said frame sections to be releasably connected together to alternatively form any of various differently shaped, annular retractor frame units.

2. The retractor frame system of claim 1 wherein said plurality of frame sections includes a plurality of planar, major frame sections comprising open rings each defining the major portion of annuli of different radii and a plurality of planar, minor frame sections comprising arches of different shapes of which the end portions are adapted for fitting in flush alignment with the end portions of said major frame sections and hinged connection thereto.

3. The retractor frame system of claim 2 wherein the outer surfaces of the end portions of a minor frame section are dimensioned to fit flush against the interior surfaces of the end portions of a major frame section and the minor frame end portions comprise parallel straight segments of sufficient length to allow 360°

relative rotation of said major and minor frame sections.

4. The retractor system of claim 2 wherein said plurality of frame sections further includes a plurality of straight planar frame sections having end portions adapted to be inserted between the respective end portions of said major and minor frame sections for hinged connection thereto.

5. The retractor frame system of claim 4 wherein said plurality of straight frame sections include at least one pair of straight frame sections, with one section of said pair being the reverse image of the other straight frame section of said pair.

6. The retractor frame system of claim 2 wherein both end portions of one of said major and minor frame sections comprises a first type of end portion adapted to fit flush against and outside both end portions of the other one of said major and minor frame sections and both end portions of the other one of said major and minor frame sections comprise a second type of end portion, one of said first and second types of end portion having the threaded hole therethrough.

7. The retractor frame section of claim 6 wherein said connecting means comprises a pin threaded at one end and said second type end portions contain the threaded hole to receive the threaded end of said pin.

8. The retractor frame system of claim 7 in which said pin includes a collar adjacent the threaded pin end for contacting one surface of said second type end portion and cooperating with the threaded pin end and the threaded hole to hold two frame sections together.

9. The retractor frame system of claim 1 wherein said plurality of frame sections includes a plurality of straight planar frame sections.

10. The retractor frame system of claim 9 wherein the first and second end portions of each frame sections are differently contoured such that one end portion of one frame section fits in overlapping alignment over an end portion of another frame section for forming a retractor unit having a smoothly contoured outline shape.

11. The retractor frame system of claim 9 wherein each said straight frame section has a first and a second type end portion with said first type end portion of each straight frame section adapted to fit flush over and outside the second type end portion of another frame section in the direction of the notched side when a plurality of frame sections are assembled into a retractor unit.

12. The retractor frame system of claim 1 wherein said plurality of frame sections includes a plurality of arcuate planar frame sections each comprising a ninety degree are from the ends of which protrude straight end portions adapted for hinged connection to other frame sections of said retractor system.

13. The retractor frame system of claim 12 wherein each said arcuate frame section has a first and a second type end portion with said first type end portion of each arcuate frame section adapted to fit flush over and outside the second type end portion of another frame section in the direction of the notched sides when a plurality of frame sections are assembled into a retractor unit.

14. The retractor frame system of claim 1 wherein said plurality of frame sections includes frame sections having first and second type end portions, with said first type end portions adapted to fit flush against and outside said second type end portions in the direction of the notched side when respective frame sections are assembled into a retractor unit.

15. The retractor frame system of claim 1 wherein said connecting means comprises a pin threaded at one end, and wherein said frame sections have first and second types of end portions with said first type end portions adapted to fit flush against and outside said second type end portions when respective frame sections are assembled into a retractor unit, said first type end portions having the unthreaded hole therethrough which said pin is insertable, and said second type end portions having the threaded hole therethrough adapted to receive the threaded end of said pin.

16. The retractor frame system of claim 15 in which said pin includes a collar adjacent the threaded pin end for contacting a surface of one of said frame section end portions and cooperating with the threaded pin end and the threaded hole to hold two frame sections together.

17. The retractor frame system of claim 1 wherein said plurality of frame sections includes arcuate planar frame sections each comprising a ninety degree arc from the ends of which extend straight end portions, and straight planar frame sections from the ends of which extend straight end portions, each said arcuate frame section having a first and a second type end portion and each said straight frame section having a first and a second type end portion, said first type end portions adapted to fit flush over and outside the second type end portions of an adjacent frame section when said arcuate and straight frame sections are assembled to form a retractor unit.

18. The surgical retractor frame system of claim 1 wherein said frame sections have an upper surface adapted to face away from the body of the surgical patient and a lower surface adapted to immediately overlie the body of the patient and wherein each of said notches has a contour tapered along a length dimension extending transversely of the frame section to diminish along said entire length dimension from a greater width dimension at the outer edge of the frame section to a lesser width dimension at the interior end of the notch length and tapered along a depth dimension extending between said frame section upper and lower surfaces to diminish along said entire depth dimension from a greater width dimension at said upper frame surface to a lesser width dimension at said lower frame surface.

19. The retractor frame system of claim 18 wherein said notch contours are tapered to accept and frictionally hold hollow elastic tubing having an outside diameter of from about 0.08 inches to about 0.13 inches.

20. The retractor frame system of claim 1 wherein a first plurality of said frame sections are arcuate planar frame sections curved through arcs of ninety degrees and a second plurality of said frame sections are straight planar frame sections.

21. The retractor frame system of claim 20 wherein said plurality of frame sections includes four of said arcuate planar frame sections and at least two of said straight planar frame sections.