Cartridge and drive assembly for a surgical stapling instrument

Details Cartridge and drive assembly for a surgical stapling instrument Cartridge and drive assembly for a surgical stapling instrument

A - Human Necessities

61

B

128/122

A61B 17/00 (2006.01)

Patent

CA 1254100

IMPROVED CARTRIDGE AND DRIVER ASSEMBLY FOR A SURGICAL STAPLING INSTRUMENT ABSTRACT OF THE INVENTION An improved cartridge and driver assembly is provided for a surgical stapling instrument of the type which drives staples through tissue to be joined and against an anvil to form the staples. The cartridge has a forming pocket or slot for each staple to be driven by a single actuation of the surgical stapling instrument. Each forming pocket is of elongated, transverse, biconvex cross-section, terminating in ends adapted to frictionally receive the legs of a surgical staple. The driver comprises a tine for each forming pocket, shiftable within the forming pocket to engage the crown of the staple to drive the staple from its forming pocket. Each driver tine is of substantially biconvex transverse cross-sectional configuration. Each forming pocket of the cartridge is of matching biconvex configuration to slidably receive its respective driver tine so that the tine engages the staple crown including those portions thereof directly over the staple legs.

498810

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