US 12,245,767 B2
Handheld electromechanical surgical system
Charles R. Kollar, West Hartford, CT (US); Alexander Hart, Tolland, CT (US); Haley Strassner, Hamden, CT (US); David E. Valentine, Hamden, CT (US); James Delbo, North Haven, CT (US); and Jonathan M. Sandor, North Haven, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jun. 14, 2021, as Appl. No. 17/347,129.
Claims priority of provisional application 63/051,026, filed on Jul. 13, 2020.
Prior Publication US 2022/0008078 A1, Jan. 13, 2022
Int. Cl. A61B 17/115 (2006.01); A61B 17/00 (2006.01); A61B 17/072 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 2017/00486 (2013.01); A61B 2017/0053 (2013.01); A61B 2017/07257 (2013.01); A61B 2017/07285 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
a handle assembly including a memory having instructions stored therein, and a processor configured to execute the instructions;
an adapter assembly configured to selectively couple to the handle assembly, the adapter assembly including a trocar; and
an end effector including:
an annular reload configured to selectively couple to a distal portion of the adapter assembly and configured for a stapling sequence and a cutting sequence; and
an anvil assembly configured to be coupled to the trocar and moved relative to the annular reload between an open position and a preset closed position, wherein the anvil assembly and the annular reload define a preset gap distance therebetween when in the preset closed position;
wherein the processor, using the instructions stored in the memory, is configured to:
determine a difference between the preset gap distance and an actual gap distance between the anvil assembly and the annular reload when the anvil assembly is in an actual closed position; and
prior to the stapling sequence and the cutting sequence, adjust each of a staple stroke for the stapling sequence and a cutting stroke for the cutting sequence by the determined difference between the preset gap distance and the actual gap distance.