Biopsy instrument with continuous tissue receiving chamber

Details Biopsy instrument with continuous tissue receiving chamber Biopsy instrument with continuous tissue receiving chamber

A - Human Necessities

61

B

A61B 10/00 (2006.01)

Patent

CA 2254303

A surgical instrument for excising a targeted tissue mass to be biopsied from adjacent bodily tissue of a surgical patient is disclosed. The instrument has an elongated tube, a penetrating member with first and second tissue stops affixed to the distal end of the elongated tube, and a tissue cutter mounted concentrically relative to the elongated tube for movement from first to second positions for cutting captured tissue received within a tissue receiving chamber. The first and second tissue stops define the tissue receiving chamber continuously about a 360° arc at the distal end of the elongated tube for receiving the targeted tissue mass therein. Unlike conventional biopsy instruments where tissue is received within a confined lateral receiving port, a significantly larger sample size can be taken within the tissue receiving chamber. The instrument is adapted for taking sufficiently sized samples to be biopsied in a minimally invasive manner, minimizing or avoiding trauma adjacent the biopsy site.

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