Surgical instrument for applying staples

• US 4,453,661 A
• Filed: 10/19/1981
• Issued: 06/12/1984
• Est. Priority Date: 10/23/1980
• Status: Expired due to Fees

• Current Assignee: Ivano-Frankovsky Gosudarstvenny Meditsinsky Institut USSR Ivano-Frankovsk Ulitsa Galitskaya 2
• Original Assignee: Ivano-Frankovsky Gosudarstvenny Meditsinsky Institut
• Inventors: Pyatiletov, Ivan I., Zraiko, Mikhail V., Krysa, Vasily M., Vovk, Ljubomir G., Genyk, Stepan N.
• Primary Examiner(s): Bell, Paul A.
• Application Number:
  US06/312,748
• Time in Patent Office: 967 Days
• Field of Search: 227/70, 227/76, 227/82, 227/84, 227/85, 227/86, 227/87, 227/88, 227/90, 227/91, 227/92, 227/93, 227/94, 227/97, 227/142, 227/143, 227/144, 227/155, 227/DIG. 1, 227/145
• 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
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• CPC Class Codes: A61B 2017/0725 with settable gap between anvil and cartridge, e.g. for different staple heights at different shots

Abstract

A surgical instrument comprises an elongated body provided with a hand lever. At a distal end of said body there is secured a female die having a pit for bending the legs of staples. A clamping jaw provided with a driver for inserting staples is mounted on said body for reciprocating travel in the direction of said female die. Within the clamping jaw there is provided a passage for feeding a wire, and on the clamping jaw there is mounted a knife capable of reciprocating in the direction perpendicular to the outlet end of the conduit, and adapted for cutting wire lengths. On the body there is also mounted a device for forming staples from wire lengths.

Claims

1. A surgical instrument for applying staples, comprising:

an elongated body having a distal end and a hand lever disposed at the end opposite to said distal end of said body;

a female die secured at said distal end of said body and provided with a pit for bending the legs of said staples;

a clamping jaw mounted on said body for reciprocating travel in the direction of said female die, and provided with a driver for inserting staples;

a passage for feeding a wire, said passage being provided in said clamping jaw and having an outlet end;

a knife for cutting wire lengths, said knife being mounted on said clamping jaw for reciprocating travel in the direction perpendicular to the outlet end of said passage;

said clamping jaw provided with a first guide for guiding said knife and a second guide for guiding a spring-loaded slide bar having a knurled member extending into said passage for feeding the wire, said slide bar movable toward and away from said outlet end along said second guide in said clamping jaw; and

a device for forming staples, mounted on said body.

2. A surgical instrument in the form of scissors provided with handles and jaws at the ends thereof as set forth in claim 1, wherein said clamping jaw is connected with the opposite handle by means of a cam follower, and wherein said wire feeding passage has an outlet end bent toward said female die.

3. A surgical instrument as set forth in claim 2, wherein said guide of said handle is constructed in the form of a cylindrical projection introduced into a guiding groove of said slide bar, said slide bar being pressed by a spring against said handle.

4. A surgical instrument as set forth in claim 3, wherein said knife is movably connected with said slide bar by means of a cylindrical projection attached to said slide bar, said projection being introduced into a transverse guiding slot of said knife.

5. A surgical instrument as set forth in claim 3, wherein said bearing jaw carrying said female die is movably coupled with said handle by means of a cam gear and has a longitudinal slot into which slot there are introduced a hinge for securing said jaw, and a projection for periodical interacting with said knife.

6. A surgical instrument as set forth in claim 2, wherein said knurled projection of said spring-loaded slide bar is secured on a resilient element, one end of said element being rigidly coupled with said slide bar and the other end thereof is contacted with a shaped surface of said clamping jaw, said knife and said slide bar being made in one piece.

7. A surgical instrument as set forth in claim 2, wherein said cam follower is provided with an extreme position stop, said stop being mounted for displacement to vary the stroke of said handles and of the slide bar and the angle of opening of said jaws.

8. A surgical instrument in the form of scissors provided with handles and with jaws for applying staples, comprising:

an elongated body having a distal end and a hand lever disposed at the end opposite to said distal end of said body;

a female die secured at said distal end of said body and provided with a pit for bending the legs of said staples;

a clamping jaw mounted on said body for reciprocating travel in the direction of said female die, and provided with a driver for inserting staples;

a passage for feeding a wire, said passage being provided in said clamping jaw and having an outlet end;

a knife for cutting wire lengths, said knife being mounted on said clamping jaw for reciprocating travel in the direction perpendicular to the outlet end of said passage;

a device for forming staples, mounted on said body;

said clamping jaw serving as said device for forming staples and said instrument constructed as two levers, a first said lever being rigidly coupled with said handle and having a mandrel at the end thereof mounted for movement from and to the plane of rotation of said jaws, and a second said lever hingedly secured to first said lever and movably coupled with said handle carrying said bearing jaw with said female die, said second handle having a U-shaped punch at its end and carrying an L-shaped rotary staple driver;

said knife being secured on said punch, and said passage for feeding the wire is constructed through and straight within said mandrel and the first lever.

9. A surgical instrument for applying staples, comprising:

an elongated body having a distal end and a hand lever disposed at the end opposite to said distal end of said body;

a female die secured at said distal end of said body and provided with a pit for bending the legs of said staples;

a clamping jaw mounted on said body for reciprocating travel in the direction of said female die, and provided with a driver for inserting staples;

a passage for feeding a wire, said passage being provided in said clamping jaw and having an outlet end;

a knife for cutting wire lengths, said knife being mounted on said clamping jaw for reciprocating travel in the direction perpendicular to the outlet end of said passage;

a device for forming staples, mounted on said body;

said instrument being in the form of a clip having a plurality of staple drivers, said staple drivers positioned within grooves of said clamping jaw, and a plurality of mating pits in said female die;

said passages for feeding the wire provided within said clamping jaw being oriented perpendicular to corresponding said drivers, each said driver having an L-shaped grip, and being mounted for withdrawal into a recess of said groove and coupled with an actuator for travel;

said knife constructed as a plurality of blades mounted for reciprocating travel within grooves of said clamping jaw between said drivers.

10. A surgical instrument as set forth in claim 9, wherein said actuator of said clamping jaw and said drivers comprises a first stem mounted within the bore of said body said stem carrying said clamping jaw and having guides on which guides there is mounted a first carriage, a second stem mounted within the bore of said first stem and having a conical tip and a collar interacting with a projection of said first carriage, a second carriage mounted on said first carriage for travel across said grooves, said second carriage being pressed by a spring to the extreme position, having a mating conical bore to receive said conical tip of said second stem, and carrying said drivers and said blades of said knife, said blades being provided with through openings coinciding with said conduits for feeding the wire with said knife being in the extreme position.

11. A surgical instrument as set forth in claim 9, wherein said blades are mounted in said clamping jaw at an angle of 30°

to 60°

to the axis of said passage for feeding the wire.

12. A surgical instrument as set forth in claim 9, wherein said drivers and said conduits for feeding the wire are orientated at an angle of 30°

to 60°

to the planes perpendicular to said clamping jaw.

13. A surgical instrument for applying staples, comprising:

an elongated body having a distal end and a hand lever disposed at the end opposite to said distal end of said body;

a female die secured at said distal end of said body and provided with a pit for bending the legs of said staples;

a clamping jaw mounted on said body for reciprocating travel in the direction of said female die, and provided with a driver for inserting staples;

a passage for feeding a wire, said passage being provided in said clamping jaw and having an outlet end;

a knife for cutting wire lengths, said knife being mounted on said clamping jaw for reciprocating travel in the direction perpendicular to the outlet end of said passage;

a device for forming staples, mounted on said body;

said instrument being in the form of a clip provided with said staple driver within a groove of said clamping jaw;

said staple driver being provided with an L-shaped grip;

said driver being mounted within said groove of said clamping jaw and being adapted for withdrawal into the recess of said groove and being coupled with said actuator for reciprocating travel and transverse displacement;

said female die being constructed in the form of a plate provided with a number of said pits, said plate being mounted on a guide of said clamping jaw perpendicular to the latter; and

a mechanism mounted on said body for index travel of the instrument along said plate.

14. A surgical instrument as set forth in claim 13, provided with a removable strap having a series of bearing sockets, said strap being mounted on said female die in an equidistant position relative to the latter, while said mechanism for index travel is constructed as a rotary lever having a spring-loaded projection at the end thereof interacting with said bearing sockets of said strap, and a shaped slot into which is introduced said cylindrical projection connected with said actuator of said staple driver.

15. A surgical instrument as set forth in claim 14, wherein said plate and said strap are made curvilinear.