Patent ID: 11871924
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A surgical instrument module for powering surgical end effectors, the surgical instrument module comprising:
a motor having a rotatable motor shaft defining a longitudinal axis;
a main sun gear fixed to the motor shaft and configured to rotate with the motor shaft;
a first planetary gear assembly operably coupled to the main sun gear such that the first planetary gear assembly rotates about the longitudinal axis in response to a rotation of the main sun gear;
a second planetary gear assembly operably coupled to the first planetary gear assembly such that the second planetary gear assembly rotates in response to the rotation of the first planetary gear assembly;
a drive shaft non-rotatably coupled to the second planetary gear assembly such that the drive shaft rotates with the second planetary gear assembly;
a third planetary gear assembly operably coupled to the second planetary gear assembly such that the third planetary gear assembly rotates in response to the rotation of the second planetary gear assembly;
a fourth planetary gear assembly operably coupled to the third planetary gear assembly such that the fourth planetary gear assembly rotates in response to the rotation of the third planetary gear assembly;
a high-torque output configured to be operably coupled to a driven member of a first surgical end effector, the high-torque output being non-rotatably coupled to the fourth planetary gear assembly such that the high-torque output rotates with the fourth planetary gear assembly; and
a high-speed output configured to be operably coupled to a driven member of a second surgical end effector, the high-speed output being non-rotatably coupled to the drive shaft such that the high-speed output rotates with the drive shaft.