US 11,864,768 B2
Handheld electromechanical surgical system
Patrick Mozdzierz, Glastonbury, CT (US); Ramiro Cabrera, Cheshire, CT (US); Joseph Eisinger, Northford, CT (US); Scott Firth, Guilford, CT (US); John Hryb, Southington, CT (US); Stephen Paul, Burlington, CT (US); Paul Richard, Shelton, CT (US); Anthony Sgroi, Jr., Wallingford, CT (US); David Valentine, Hamden, CT (US); and Justin Williams, Southbury, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Mar. 2, 2021, as Appl. No. 17/189,350.
Application 17/189,350 is a continuation of application No. 15/972,606, filed on May 7, 2018, granted, now 10,932,784.
Claims priority of provisional application 62/517,276, filed on Jun. 9, 2017.
Claims priority of provisional application 62/517,297, filed on Jun. 9, 2017.
Prior Publication US 2021/0177423 A1, Jun. 17, 2021
Int. Cl. A61B 17/115 (2006.01); A61B 90/98 (2016.01); A61B 17/3211 (2006.01); A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01); A61B 90/00 (2016.01); A61B 34/00 (2016.01)
CPC A61B 17/1155 (2013.01) [A61B 17/3211 (2013.01); A61B 17/3476 (2013.01); A61B 90/98 (2016.02); A61B 2017/00017 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/00115 (2013.01); A61B 2017/00119 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00725 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/00818 (2013.01); A61B 2017/2903 (2013.01); A61B 2017/2904 (2013.01); A61B 2034/252 (2016.02); A61B 2090/038 (2016.02); A61B 2090/064 (2016.02); A61B 2090/0803 (2016.02); A61B 2090/0808 (2016.02); A61B 2090/0811 (2016.02); A61B 2090/0814 (2016.02); A61B 2217/007 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A handheld surgical device comprising:
a surgical reload including an annular staple pusher and a circular knife carrier;
a handle assembly including:
a plurality of motors; and
a plurality of rotatable drive shafts each of which is coupled to one of the motors; and
an adapter assembly selectively connectable to the handle assembly and the surgical reload, the adapter assembly including:
an adapter housing configured and adapted for connection with the handle assembly;
an outer tube having a proximal end supported by the adapter housing and a distal end configured to connect to the surgical reload, wherein the distal end of the outer tube is in operative communication with the annular staple pusher and the circular knife carrier;
a trocar assembly disposed within the outer tube, the trocar assembly including a trocar drive screw and a trocar member threadably supported on a distal end portion of the trocar drive screw;
a first transmission assembly interconnecting a first rotatable drive shaft of the rotatable drive shafts and the trocar drive screw;
a second transmission assembly interconnecting a second rotatable drive shaft of the rotatable drive shafts and the annular staple pusher;
a third transmission assembly interconnecting a third rotatable drive shaft of the rotatable drive shafts and the circular knife carrier; and
a strain gauge assembly supported within the outer tube and configured to measure strain imparted by the first, second, and third transmission assemblies on the trocar assembly, the annular staple pusher, and the circular knife carrier, respectively.