Surgical instrument

• US 4,684,051 A
• Filed: 09/05/1985
• Issued: 08/04/1987
• Est. Priority Date: 09/10/1985
• Status: Expired due to Fees

• Current Assignee: Vsesojuzny Nauchno-Issledovalelsky Ispytatelny Institut Meditsinskoi Tekhniki
• Original Assignee: Vsesojuzny Nauchno-Issledovalelsky Ispytatelny Institut Meditsinskoi Tekhniki
• Inventors: Akopov, Ernest M., Arapova, Anna V., Schitinin, Valery E.
• Primary Examiner(s): Bell, Paul A.
• Application Number:
  US06/772,733
• Time in Patent Office: 698 Days
• Field of Search: 227/DIG. 1, 227/19, 227/135, 128/334 R
• US Class Current: 227/19
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously

Abstract

A surgical instrument for placing linear staple sutures includes a body having a closed rectangular frame. Each of the lateral sides of the frame are provided with a slot which is located on an inner surface of the lateral side close to the adjacent side of the frame. The axis of the slot is parallel to each of the lateral sides. A die is provided with a plurality of recesses and secured on the adjacent side of the frame. The extreme recesses of the die are arranged inside the slots on the frame lateral sides. A staple head is accommodated in the body. A detachable staple magazine has a plurality of staple slots and positioned so that its portions provided with extreme staple slots should engage the slots in the lateral sides of the frame, a staple ejector, and actuators of the staple head and of the staple ejector, respectively.

Claims

1. A surgical instrument for placing linear staple sutures, comprising:

a body;

a closed rectangular frame forming part of said body and established by a first and a second lateral side and a third and a fourth side arranged therebetween;

a first and a second slot, similar to each other and provided in said respective first and second frame lateral sides, each of said slots having its geometrical axis parallel to said respective first and second lateral sides of said frame;

a die fixed on said third side of said frame;

said die having a plurality of recesses facing an internal side of said frame, and having portions with extreme recesses situated within said first and second slots;

a staple head mounted in said frame opposite to said die and traversably with respect to said frame;

a detachable staple magazine adapted to be installed in said staple head;

said detachable magazine having a number of staple slots and portions with extreme staple slots and adapted to be set in the suturing position with respect to said frame so that said magazine portions with the extreme staple slots are arranged inside said first and second lateral sides of said frame opposite to said respective portions of said die with said extreme recesses;

a staple ejector movably fitted in said staple head and so arranged as to correspond to said staple slots of said magazine;

an actuator of said staple head, accommodated in said body; and

an actuator of said staple ejector, accommodated in said body. PG,37

2. A surgical instrument as claimed in claim 1, wherein said portions of said detachable magazine provided with the extreme staple slots have the same width as said first and second slots in said first and second lateral sides of said frame.

3. A surgical instrument as claimed in claim 2, wherein said detachable magazine has a stop shaped as a projection and adapted to be fixed with respect to said staple head and to said first and second slots in said first and second lateral sides of said frame.

4. A surgical instrument as claimed in claim 1, wherein said detachable magazine has portions confined within said first and second lateral sides in the suturing position, and guides on said confined portions.

5. A surgical instrument as claimed in claim 4, wherein said detachable magazine has a stop shaped as a projection and situated on any of said guides;

said stop adapted for said detachable magazine to be fixed with respect to said staple head and to said first and second slots in said first and second lateral sides of said frame.

6. A surgical instrument as claimed in claim 1, wherein said detachable magazine has a stop shaped as a projection and adapted to be fixed with respect to said staple head and to said first and second slots in said first and second lateral sides of said frame.

7. A surgical instrument as claimed in claim 1, wherein a first and a second opening is provided in said first and second lateral side of said frame;

said first opening communicating with said second slot.

8. A surgical instrument for placing linear staple sutures, comprising:

a body;

a closed rectangular frame forming part of said body and formed by a first and a second lateral side and a third and a fourth side arranged therebetween, a first and a second projection situated respectively on said opposite first and second lateral sides of said frame thereinside and close to said third side adjacent to said first and second lateral sides;

a first and a second slot, similar to each other and provided in said respective first and second projections, each of said slots having its geometrical axis parallel to said respective first and second lateral sides of said frame;

said first and second slots opening on the side facing the fourth side of said frame;

a die fixed on said third side of said frame;

said die having a plurality of recesses facing an internal side of said frame, and having portions with extreme recesses situated within said first and second slots;

a staple head mounted in said frame opposite to said die and traversably with respect to said frame;

a detachable staple magazine adapted to be installed in said staple head;

said detachable magazine having a number of staple slots and portions with extreme staple slots and adapted to be set in the suturing position with respect to said frame so that said magazine portions with the extreme staple slots are arranged inside said first and second slots on said first and second lateral sides of said frame opposite to said respective portions of said die with said extreme recesses;

a staple ejector movably mounted in said staple head and so arranged as to correspond to said slots of said magazine;

an actuator of said staple head, accommodated in said body; and

an actuator of said staple ejector, accommodated in said body.

9. A surgical instrument as claimed in claim 8, wherein said first and second projections are located on part of said first and second lateral sides.

10. A surgical instrument for placing linear staple sutures, comprising;

a body;

a closed rectangular frame forming part of said body and formed by a first and a second lateral side and a third and a fourth side arranged therebetween;

a first and a second projection situated respectively on said opposite first and second lateral sides of said frame thereinside and close to said third side adjacent to said first and second lateral sides;

a die fixed on said third side of said frame;

said die having a plurality of recesses facing an internal side of said frame, and having portions with extreme recesses, said portions encompassing said first and second projections situated on said first and second lateral sides of said frame;

a staple head mounted in said frame opposite to said die and traversably with respect to said frame;

a detachable staple magazine adapted to be installed in said staple head;

said detachable magazine having a number of staple slots and a first and second slots in each of the end faces thereof, said slots corresponding to said first and second projections on said first and second lateral sides of said frame, said magazine having portions with extreme staple slots, said magazine portions encompassing said first and second slots in the end faces of said magazine;

said detachable magazine adapted to be set in the suturing position with respect to said frame so that said magazine portions with said extreme staple slots are arranged opposite to said respective portions of said die with said extreme recesses;

a staple ejector movably mounted in said staple head and so arranged as to correspond to said staple slots of said magazine;

an actuator of said staple head adapted to be set in said body; and

an actuator of said staple ejector adapted to be set in said body.

11. In a surgical instrument for placing linear staple sutures, comprising;

a body;

a closed rectangular frame forming part of said body and formed by a first and a second lateral side and a third and a fourth side arranged therebetween;

a first and a second projection situated respectively on said opposite first and second lateral sides of said frame thereinside and close to said third side adjacent to said first and second lateral sides;

a die fixed on said third side of said frame;

said die having a plurality of recesses facing an internal side of said frame, and having portions with extreme recesses, said portions encompassing said first and second projections situated on said first and second lateral sides of said frame;

a staple head mounted in said frame opposite to said die and traversably with respect to said frame;

a detachable staple magazine adapted to be fixed in said staple head and having a body and a number of staple slots in said body;

a staple ejector movably mounted in said staple head and so arranged as to correspond to said staple slots of said magazine;

an actuator of said staple head, accommodated in said body; and

an actuator of said staple ejector, accommodated in said body, said body of said detachable staple magazine having a first and a second slot on the end faces thereof, said slots corresponding to said first and second projections on said first and second lateral sides of said frame and said detachable magazine having portions with extreme staple slots, said magazine portions forming said first and second slots in the end faces of said magazine;

said detachable staple magazine adapted to be set to the suturing position with respect to said frame so that said magazine portions with the extreme staple slots are arranged opposite to said respective portions of said die with said extreme recesses.