Elongated-member-driving apparatus – With means to assemble plural pieces of work
Patent
1978-11-17
1979-12-18
McQuade, John
Elongated-member-driving apparatus
With means to assemble plural pieces of work
227120, 227127, 227129, A61B 1704, B25C 502
Patent
active
041790570
ABSTRACT:
A disposable surgical stapling instrument for forming and implanting surgical staples in the skin or fascia of a patient to close a wound or incision. The instrument comprises an elongated body having a forward portion and a rearward portion serving as a handle portion. The forward portion of instrument body houses a staple driver attached to a staple driver actuator and a return spring for the staple driver actuator. A surgical staple magazine assembly is affixed to the lower edges of the instrument body forward portion. An anvil plate, supporting a tow of surgical staples, is located within the magazine assembly. The anvil plate terminates at its forward end in a coextensive anvil surface. The magazine assembly contains a feeder assembly to constantly urge the row of staples toward the anvil surface to locate the forwardmost staple of the row thereon to be implanted and formed thereabout by the driver and to disengage a formed staple therefrom. The magazine assembly also provides a channel for the lower end of the staple driver and a staple retaining surface to minimize bending of the staple crown during the staple forming operation. The staple driver is shiftable between a retracted position and a staple forming position by means of a trigger pivotally mounted to the instrument body forward portion and operatively connected to the staple driver actuator.
REFERENCES:
patent: 2874384 (1959-02-01), Krone
patent: 3873016 (1975-03-01), Fishbein
patent: 4109844 (1978-08-01), Becht
Becht Carl T.
Hueil J. Charles
McQuade John
Senco Products Inc.
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