Patent ID: 8267868

Claim:
A single-insertion, multiple sample biopsy device, comprising: a stylet extending along a longitudinal axis between a distal end and a proximal end, the stylet having a tip at the distal end and a hollow interior volume extending from a biopsy port proximate the distal end to the proximal end; a cannula that surrounds a portion of the stylet and movable along the longitudinal axis; a plurality of non-coaxial lumens disposed in the hollow interior volume, the plurality of non-coaxial lumens including a first lumen and a second lumen; a first bulkhead movably disposed in the hollow interior volume of the stylet, the first bulkhead being drivably coupled to the plurality of non-coaxial lumens and coupled in fluid communication with the first lumen; a second bulkhead movably disposed in the hollow interior volume of the stylet, the second bulkhead being spaced distally from the first bulkhead to define a biopsy sample volume therebetween; a third lumen drivably coupled to the second bulkhead and extending between the first bulkhead and the second bulkhead, the third lumen being configured to provide a continuous extension of the second lumen through the biopsy sample volume to a location distal the second bulkhead, and wherein the first lumen, the second lumen, the third lumen, the first bulkhead and the second bulkhead are configured as a single drivable unit; and a transport subassembly configured to drivably move the first lumen, the second lumen, the third lumen, the first bulkhead and the second bulkhead as a single unit in the hollow interior volume of the stylet.