Patent ID: 8337416
Filing Date: 2012-12-25
Classification: A61B

Abstract:
1. A biopsy instrument for obtaining a tissue biopsy sample, comprising: a housing that movably supports one or more elongate stylets and one or more elongate cannulas, each cannula comprising a lumen through which one of the one or more stylets is movably disposed therethrough; an operator rotatably mounted to the housing about an axis and fixed to an axle; a first wheel rotatable about the axis and in selective rotational connection with the axle, the first wheel operatively engaged with the one or more cannulas to cause translation of the one or more cannulas with rotation of the first wheel; a second wheel rotatable about the axis and in selective rotational connection with the axle, the second wheel operatively engaged with the one or more stylets to cause translation of the one or more stylets with rotation of the second wheel; a shuttle disposed within the housing and in selective connection with the first and second wheels, the shuttle being translatable about the housing, the shuttle comprising a pin that is received within a first slot defined about an outer circumference of the first wheel and selectively engageable with the second wheel to selectively allow torque transfer from the axle to the second wheel.