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SURGICAL INSTRUMENT FOR SUTURING TISSUES AND ORGANS WITH METAL STAPLES

  • US 3,795,034 A
  • Filed: 05/09/1972
  • Issued: 03/05/1974
  • Est. Priority Date: 05/03/1971
  • Status: Expired due to Term
First Claim
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1. A surgical instrument for suturing tissues and organs with metal staples, comprising:

  • an oblong supporting body having at one of its ends a main portion, and a supporting jaw arranged crosswise of said oblong body, said jaw featuring a flat area facing the main portion of the body;

    three parallel rows of depressions on said flat area of the jaw, adapted for bending the ends of the staple legs, two of said rows of depressions serving for applying a double-stitch suture to all the layers of the tissue being sutured, while the third row is provided for application of a single-stitch suture to layers of the tissue being sutured;

    said supporting jaw having a detachable portion which carries one row of said depressions adapted for the application of said single-stitch suture, a staple body having an oblong hollow tailpiece slidable along said supporting body and a hollow head open at an end of said tailpiece, said hollow head facing with its open end said flat area of the supporting jaw;

    a staple magazine adapted to be inserted into said hollow head and provided with three rows of open-ended slots to accommodate metal staples therein, said rows of open ended slots being arranged in strict correspondence with said three parallel rows of depressions located on the flat area of the supporting jaw;

    a screw-and-nut mechanism associated with said supporting body and said hollow tailpiece of the staple body for the staple body to travel with respect to said supporting body, whereby said staple body approaches said flat area of said supporting jaw to force the tissue being sutured thereagainst;

    two staple ejectors having elongated stems capable of independently sliding along said tailpiece of thE staple body, transverse heads being provided at the ends of said staple ejectors carrying three parallel rows of ejecting projections adapted to engage said slots in the magazine when the staple ejectors are moving; and

    means to impart independent motion to said staple ejectors with the result that said ejecting projections drive out the staples from the magazine slots.

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