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

• Current Assignee: Alexei Alexeevich Strekopytov, Pavel Iosifovich Androsov, Tamara Pavlovna Androsova, Tatyana Andreevna Strekopytova
• Original Assignee: Alexei Alexeevich Strekopytov, Pavel Iosifovich Androsov, Tamara Pavlovna Androsova, Tatyana Andreevna Strekopytova
• Inventors: Strekopytov, Alexei Alexeevich, Strekopytova, Tatyana Andreevna, Androsova, Tamara Pavlovna, Androsov, Pavel Iosifovich
• Primary Examiner(s): Eager, Thomas H.
• Application Number:
  US05/251,696
• Time in Patent Office: 665 Days
• Field of Search: 29/212D,212R,211R,28D
• US Class Current: 227/178.1
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: Y10T 29/53552 Valve applying or removing

Abstract

A surgical instrument for suturing tissues and organs with metal staples incorporates a supporting body which at one of its ends carries a supporting jaw which has a flat area on which three parallel rows of depressions are provided, adapted for the ends of the staple legs to bend, two of said three rows serving for applying a double-stitch suture to all the layers of the tissue being sutured, the remaining row is for the application of a single-stitch suture to the upper layer of that tissue. Part of the supporting jaw carrying said one row of depressions is made detachable. The instrument has a staple body, having a hollow head into which is inserted a staple magazine, and staple ejectors for the staples to be driven out therefrom, as well as actuators for an independent motion of the staple ejectors and the staple body. The instrument is capable if application of both a double-stitch suture with subsequent invagination thereof and the application of a single-stitch suture, and a single-stitch suture alone.

Claims

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.

2. A surgical instrument as claimed in claim 1, wherein the supporting jaw of the supporting body comprises a tapered first jaw portion which is nondetachable from the instrument, said first jaw protion carrying thereon said two rows of depressions, and a second detachable jaw portion which carries said third row of depressions, whereby, the instrument may be used with said detachable jaw detached, so as to facilitate suturing of small-length organs and so as to facilitate introduction of the instrument into less accessible places in a zone of the organ being sutured.