US 12,357,313 B2
Cut optimization for excessive tissue conditions
Steven H. Joyce, Durham, CT (US); David E. Valentine, Hamden, CT (US); Patrick Mozdzierz, Glastonbury, CT (US); Charles R. Kollar, Washington, DC (US); and Haley Strassner, New Haven, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Feb. 23, 2024, as Appl. No. 18/585,215.
Application 18/585,215 is a continuation of application No. 17/120,659, filed on Dec. 14, 2020, granted, now 11,911,038.
Claims priority of provisional application 62/960,202, filed on Jan. 13, 2020.
Prior Publication US 2024/0188960 A1, Jun. 13, 2024
Int. Cl. A61B 17/115 (2006.01); A61B 17/068 (2006.01); A61B 17/32 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 17/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A powered stapling device comprising:
a staple cartridge including a plurality of staples and an annular knife movable relative to the staple cartridge;
an anvil assembly movable relative to the staple cartridge; and
software configured for:
advancing the annular knife at a first velocity until a predetermined force on the annular knife is detected;
increasing force applied by the annular knife above the predetermined force in response to the annular knife reaching a first position;
determining that the annular knife reached a second position distal of the first position, the second position corresponding to a minimum cutting stroke distance;
after the minimum cutting stroke distance is achieved, advancing the annular knife at a second velocity when the force above the predetermined force is detected, the second velocity being less than the first velocity; and
continuing to advance the annular knife at the second velocity until the annular knife reaches a maximum cutting stroke distance.