SURGICAL INSTRUMENT FOR INTRALUMINAL ANASTOMOSIS

• US 3,638,652 A
• Filed: 06/01/1970
• Issued: 02/01/1972
• Est. Priority Date: 06/01/1970
• Status: Expired due to Term

• Current Assignee: James L. Kelley
• Original Assignee: James L. Kelley
• Inventors: Kelley, James L.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/042,075
• Time in Patent Office: 610 Days
• Field of Search: 227/19,76 128/305,334R,334C,335
• US Class Current: 227/179.1
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00973 pedal-operated

Abstract

An instrument for use by surgeons particularly in cases involving resection and anastomosis of vascular and digestive tract organs. The instrument is dimensioned for insertion of the principal parts of the instrument into the open ends of or through stab wounds in the lumena after resection and the actual anastomosis is by stapling the tissue entirely around the stoma which is formed by an endless knife, illustrated as annular, and the tissue cut away to form the stoma is conveniently removed with instrument. The staples and knife are in a replaceable cartridge. Remote power means connected by a flexible conduit allows maximized ease of maneuverability of the principal parts of the instrument during actual surgical procedure.

Claims

1. A surgical instrument for intraluminal anastomosis, comprising:

a cartridge having at least one row of staples forming a closed loop;

a head receiving said cartridge and having staple pusher means engaging the bight portions of said staples;

an actuator having an anvil and a power-operated link joining said head and actuator and adapted to move said head, including said pusher means toward said anvil thus discharging and clinching said staples;

a stoma-forming knife in said head generally conforming to and disposed inside said row of staples; and

means to disengage said link from said head, thus permitting removal of the instrument along with the tissue excised by said knife.

2. A surgical instrument according to claim 1 wherein said staple pusher means in said cartridge as loaded into said head extend from a face of said cartridge toward said head.

3. A surgical instrument according to claim 2 wherein said pusher means is a plurality of individual pins discrete from each other.

4. A surgical instrument according to claim 1 wherein said actuator has means to receive said knife and said head has knife pusher means extending similarly to said staple pusher means from said one face of the cartridge.

5. A surgical instrument according to claim 4 wherein said knife pusher means is an annular sleeve discrete from said knife.

6. A surgical instrument according to claim 1 wherein said actuator comprises a small disclike element having an axial length comparable to said head so that the axial length of the head-actuator assembly is less than twice the diameter of the knife.

7. A surgical instrument according to claim 1 wherein said actuator comprises a short cylinder with a piston operatively mounted therein to reciprocate said link and having a flexible conduit to connect said cylinder with a source of pressurized fluid, the flexibility of said tube making the head-actuator assembly easily maneuverable in use.

8. A surgical instrument according to claim 1 wherein said actuator has a cylinder with a piston therein connected to said link, and a remote fluid pressure means operatively connected with said cylinder.