Patent ID: 9592056
Date: 2017-03-14
CPC Classifications: A61B

Claim:
1. A stapler, comprising: a handle assembly; a shaft extending distally from the handle assembly; a tool assembly configured to selectively couple to the shaft and including a cartridge assembly and an anvil assembly, the cartridge assembly including a staple guide defining a tissue contacting surface and a plurality of staple retaining slots therein; a resilient member operably positioned within the cartridge assembly and configured to bias the staple guide distally to provide a predetermined compressive force against tissue when the cartridge assembly and anvil assembly are approximated toward one another; and a microcontroller configured to operably communicate with a motor and a power source configured to energize the motor, wherein the microcontroller is in operable communication with the cartridge assembly and configured to test a spring constant of the resilient member.