US 12,220,186 B2
Seal configurations for surgical instruments such as for use in robotic surgical systems
Haralambos P. Apostolopoulos, Castle Rock, CO (US); Russell W. Holbrook, Longmont, CO (US); Jason G. Weihe, Longmont, CO (US); Zachary S. Heiliger, Nederland, CO (US); Dylan R. Kingsley, Broomfield, CO (US); and Crystal A. Adams, Westminster, CO (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jun. 29, 2020, as Appl. No. 16/915,287.
Prior Publication US 2021/0401513 A1, Dec. 30, 2021
Int. Cl. A61B 34/30 (2016.01); A61B 17/29 (2006.01); A61B 18/14 (2006.01)
CPC A61B 34/30 (2016.02) [A61B 2017/2948 (2013.01); A61B 18/1445 (2013.01); A61B 2018/1455 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A robotic surgical instrument, comprising:
a housing;
a support plate disposed within the housing;
a shaft having a proximal end portion coupled to the support plate within the housing, the shaft extending distally from the housing, the shaft including a proximal segment, a distal segment, and an articulating portion interconnecting the proximal and distal segments, the shaft including or connected to an enlarged shaft portion within the housing, the enlarged shaft portion defining a diameter greater than a diameter of the proximal segment of the shaft;
an end effector assembly coupled to the distal segment of the shaft and extending distally therefrom;
a plurality of actuation components extending through the support plate and at least a portion of the shaft to operably couple to at least one of: the end effector assembly, the articulating portion, or the distal segment to enable selective actuation of the end effector assembly; and
a seal configuration disposed within the enlarged shaft portion at least partially within the housing, the seal configuration configured to establish seals against an interior annular surface of the enlarged shaft portion, about each actuation component of the plurality of actuation components, and within the enlarged shaft portion to inhibit fluid communication from the shaft into the housing.