US 12,433,700 B2
Robotic surgical assemblies
Brian Rockrohr, Guilford, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Apr. 28, 2023, as Appl. No. 18/140,818.
Application 18/140,818 is a continuation of application No. 17/013,936, filed on Sep. 8, 2020, granted, now 11,666,395.
Application 17/013,936 is a continuation of application No. 15/735,058, granted, now 10,779,897, issued on Sep. 22, 2020, previously published as PCT/US2016/038367, filed on Jun. 20, 2016.
Claims priority of provisional application 62/183,363, filed on Jun. 23, 2015.
Prior Publication US 2023/0320796 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 34/30 (2016.01); A61B 34/00 (2016.01)
CPC A61B 34/30 (2016.02) [A61B 34/71 (2016.02); A61B 2034/302 (2016.02); A61B 2034/305 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument for use with a robotic surgical system, the surgical instrument comprising:
an instrument drive connector including a housing assembly defining a bore therein;
an elongated shaft having a proximal portion operably coupled to the instrument drive connector and a distal portion having an end effector; and
a drive assembly housed within the bore of the housing assembly, the drive assembly including:
a drive screw rotatable relative to the housing assembly;
a drive nut mechanically engaged with the drive screw such that rotation of the drive screw causes longitudinal movement of the drive nut;
a biasing element surrounding a portion of the drive screw; and
a drive member in mechanical cooperation with the drive nut and the end effector.