Surgical device for the collection of soft tissue

A biopsy device, comprising:

• (a) a reusable component comprising a first coupling feature;
• and
• (b) a disposable probe assembly comprising a second coupling feature corresponding to the first coupling feature, wherein the first and second coupling features are detachably coupled such that the disposable probe assembly is configured to couple to the reusable component in response to longitudinal translation relative to the reusable component, wherein the probe assembly comprises:
• (i) a probe body,
• (ii) an elongated piercer, the piercer having a sharpened distal end, and
• (iii) an elongated cutter disposed coaxially and slidably relative to the piercer, the cutter distal end being configured to cut tissue when the cutter moves relative to the piercer;
• wherein the probe assembly and reusable component together define a handpiece, wherein the handpiece is further defined by a securing portion of the first coupling feature wrapping around at least a portion of the probe body;
• wherein the piercer is longitudinally offset with respect to the handpiece such that the offset is configured to facilitate insertion of the piercer parallel to the chest wall of a patient and to facilitate extraction of tissue located close to the chest wall of the patient.

A biopsy device, comprising:

• (a) a probe assembly, wherein the probe assembly comprises:
• (i) an elongated piercer, the piercer having a closed, sharpened distal end for piercing tissue and a transverse bowl proximal to the sharpened distal end for receiving a portion of a tissue mass, and
• (ii) an elongated cutter having an open distal end, a proximal end, and a cutter lumen therethrough, the cutter being disposed coaxially and slidably relative to the piercer, the cutter distal end being configured to cut a portion of tissue protruding into the transverse bowl of the piercer when the cutter moves relative to the transverse bowl;
• and
• (b) a reusable component detachably coupled with the probe assembly, such that the reusable component and the probe assembly together define a handpiece, wherein the handpiece is configured for manipulation of the biopsy device, wherein the reusable component comprises at least one motor operable to move the cutter relative to the transverse bowl;
• wherein the elongated piercer is longitudinally offset with respect to the handpiece;
• and
• wherein the probe assembly further comprises a surface for receiving tissue samples severed by the cutter, wherein the surface is spaced proximally from the elongated piercer, wherein the surface for receiving tissue samples is configured to display an entire longitudinal portion of the severed tissue samples for viewing from a position exterior to the biopsy device when the reusable component is coupled with the probe assembly.