The invention provides tubular surgical cutter devices which include aspiration flow control ports to enhance the ability of the cutter to remove severed tissues from an internal surgical site. The aspiration flow control ports will admit sufficient aspiration fluid to transport tissue fragments...http://www.google.es/patents/US5730752?utm_source=gb-gplus-sharePatente US5730752 - Tubular surgical cutters having aspiration flow control ports
Tubular surgical cutters having aspiration flow control ports
