Lateral biopsy device

Abstract

Abstract A lateral biopsy device (10) for retrieving tissue samples atraumatically from within a patient's body. Biopsy device (10) comprises an elongated flexible catheter (11) which terminates at its distal tip in an annular cutting edge (23). Disposed within the central lumen of catheter (11) is an elongated flexible shaft (12) which is somewhat longer than the catheter. An anvil (14) having a rounded outer tip (25) is securely attached to the distal end of shaft (12). The anvil includes an annular surface (24) that contacts annular cutting edge (23) of catheter (11) when shaft (12) is retracted with respect to the catheter. Gripping means (13) attached to the proximal end of the shaft (12) enables the operator to advance and retract anvil (14) with respect to annular cutting edge (23) to retrieve a tissue sample positioned there between.

Inventors

• 👤 David S. Zimmon

Bibliographic Details