CPC A61B 10/0291 (2013.01) [A61B 10/04 (2013.01)] | 14 Claims |
1. A tissue biopsy device, comprising:
an input drive shaft configured to receive a rotational input, where, in response to the rotational input, the input drive shaft is configured to rotate in a first direction and translate longitudinally;
an outer tube;
an inner cutting member extending through the outer tube; and
a gear assembly coupling one of the outer tube or the inner cutting member with the input drive shaft such that rotation of the input drive shaft in the first direction drives rotation of the one of the outer tube or the inner cutting member in the first direction, and coupling the other of the outer tube or the inner cutting member with the input drive shaft such that rotation of the input drive shaft in the first direction drives rotation of the other of the outer tube or the inner cutting member in a second, opposite direction,
wherein longitudinal translation of the input drive shaft drives longitudinal translation of at least one of the outer tube or the inner cutting member relative to another of the outer tube or the inner cutting member.
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