POWER MODULE FOR USE WITH SURGICAL INSTRUMENT Russian patent published in 2018 - IPC A61B17/72 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically to a power module for use with electrically powered surgical cutting and stapling instruments. Power module for use with a surgical instrument includes an end effector, wherein the power module comprises a first motion conversion assembly, a second motion conversion assembly, a motor and a transmission assembly. First motion conversion assembly, comprises a first rotary drive and a first axial drive operably coupled to the first rotary drive. Second motion conversion assembly comprises a second rotary drive and a second axial drive operably coupled to the second rotary drive. Motor is configured to generate at least one rotational motion to actuate the end effector, the motor defining an actuation axis. Transmission assembly is configured to selectively operably couple the motor to the first rotary drive and the second rotary drive. First rotary drive is rotatable about the longitudinal axis in response to the at least one rotational motion when the motor is operably coupled to the first rotary drive. Second rotary drive is rotatable about the longitudinal axis in response to the at least one rotational motion when the motor is operably coupled to the second rotary drive. Motor is positioned concentrically with the first rotational drive and the second rotational drive. In the second embodiment, the power module comprises said first motion conversion assembly, second motion conversion assembly, motor and transmission assembly. Transmission assembly is configured to operably couple the motor with the first rotational drive and the second rotational drive. First rotational drive is configured to rotate around a longitudinal axis in response to at least one rotational motion when the motor is operably coupled to the first rotational drive. Second rotational drive is configured to rotate around a longitudinal axis in response to at least one rotational motion when the motor is operably coupled to the second rotational drive. Surgical instrument comprises a shaft, a housing extending proximally from the shaft, an end effector extending distally from the shaft, and said power module at least partially positioned within the housing.

EFFECT: use of a group of inventions is characterised by a reduction in the size of the power module.

17 cl, 16 dwg