Patent ID: 7229419
Filing Date: 2007-06-12
Classification: A61B

Abstract:
1. An automatic tissue sampling apparatus for use with a biopsy needle set of the kind including an inner needle having a first hub disposed at one end and a cutting point disposed on an opposite end with a tissue holding notch positioned between the cutting point and the first hub and an outer cannula having a second hub at one end and a cutting point disposed at the opposite end, the automatic tissue sampling apparatus comprising: a housing having a forward portion adjacent a forward end and a rearward portion adjacent a rearward end with a transverse wall disposed between said forward portion and said rearward portion; a rotatable center shaft disposed within said housing along a longitudinal axis of said housing; a rearward carrier assembly configured to receive and carry one of the needle hubs, said rearward carrier assembly including a forward carrier assembly configured to receive and carry the other of the needle hubs, said forward carrier assembly including a two stage cocking assembly for moving one of said carriers to the corresponding cocked position with a first actuation of said cocking assembly and then moving the other of said carriers to the corresponding cocked position with a second actuation of said cocking assembly, the cocking assembly having