Patent ID: 8900162

Claim:
A biopsy device, comprising: (a) a body; (b) a needle extending distally from the body, wherein the needle is configured to receive tissue; (c) a hollow cutter, wherein the cutter is configured to translate with respect to the needle to sever tissue received by the needle; (d) a motor disposed within the body and operable to rotate a drive shaft in a first direction; (e) a power source disposed within the body and operable to power the motor; (f) a vacuum source disposed within the body, wherein the vacuum source is configured to provide vacuum in at least one of the needle and the hollow cutter; and (f) a cutter translation assembly disposed within the body, wherein the cutter translation assembly is operable to translate the cutter proximally with respect to the needle in response to rotation of the drive shaft in the first direction, and wherein the cutter translation assembly is further operable to translate the cutter distally with respect to the needle in response to rotation of the drive shaft in the first direction.