Patent ID: 11871950
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 7:
8. A handpiece assembly for use with a tissue resecting device comprising:
a motor; and
a cooling assembly including:
a housing including an elongate cover defining a first lumen therethrough;
a fan assembly including a tubular member configured to be received in the first lumen of the elongate cover of the housing, and a plurality of blades rotatably supported on the tubular member and operatively coupled with the motor for concomitant rotation therewith; and
a fin pack including a tubular base and a plurality of fins extending radially outward from the tubular base, the tubular base disposed within the elongate cover and about the tubular member of the fan assembly,

wherein actuation of the motor rotates the plurality of blades of the fan assembly to thereby advance air through a space between the fin pack and the elongate cover of the housing to facilitate cooling of the motor.