Inventor
FRIEDMAN ALLAN L
US6 patents
Patents
6 patentsUS7179271B2Feb 20, 2007
Method for driving an ultrasonic system to improve acquisition of blade resonance frequency at startup
ETHICON ENDO SURGERY INC577 citations98
US6662127B2Dec 9, 2003
Method for detecting presence of a blade in an ultrasonic system
ETHICON ENDO SURGERY INC551 citations98
US6633234B2Oct 14, 2003
Method for detecting blade breakage using rate and/or impedance information
ETHICON ENDO SURGERY INC679 citations98
US6626926B2Sep 30, 2003
Method for driving an ultrasonic system to improve acquisition of blade resonance frequency at startup
ETHICON ENDO SURGERY INC508 citations98
US6537291B2Mar 25, 2003
Method for detecting a loose blade in a hand piece connected to an ultrasonic surgical system
ETHICON ENDO SURGERY INC573 citations98
US6756909B2Jun 29, 2004
Method for detecting blade breakage using rate and/or impedance information
ETHICON ENDO SURGERY INC6 citations73