A deflectable biopsy catheter for obtaining a tissue sample from a body cavity of a patient comprising: an axially elongated catheter shaft having proximal and distal portions respectively terminating at proximal and distal ends, the catheter shaft being sized and constructed to be advanced into...http://www.google.es/patents/US5779646?utm_source=gb-gplus-sharePatente US5779646 - Deflectable biopsy catheter
