1
David G Wuchinich, Robert Brendolan, Louis Katz, Donald R Krawitt: Endoscopic ultrasonic aspirators. Sonomed Technology, Pennie & Edmonds, June 14, 1988: US04750902 (415 worldwide citation)

A method and apparatus for endoscopic removal of compliant biological tissues utilizing an endoscopic ultrasonic aspirator comprising irrigation and aspiration means, a piezoelectric ultrasonic transducer, a first resonator such as a half-wave stepped velocity transformer, a probe including a second ...


2
David G Wuchinich, Donald R Krawitt, Robert Brendolan, Louis Katz: Method for removing cellular material with endoscopic ultrasonic aspirator. Valleylab, Pennie & Edmonds, May 8, 1990: US04922902 (274 worldwide citation)

A method and apparatus for endoscopic removal of compliant biological tissues utilizing an endoscopic ultrasonic aspirator comprising irrigation and aspiration means, a piezoelectric ultrasonic transducer, a first resonator such as a half-wave stepped velocity transformer, a probe including a second ...


3
David G Wuchinich, Donald R Krawitt, Robert Brendolan, Louis Katz: Vibration apparatus preferably for endoscopic ultrasonic aspirator. Sonomed Technology, Pennie & Edmonds, June 14, 1988: US04750488 (169 worldwide citation)

A method and apparatus for endoscopic removal of compliant biological tissues utilizing an endoscopic ultrasonic aspirator comprising irrigation and aspiration means, a piezoelectric ultrasonic transducer, a first resonator such as a half-wave stepped velocity transformer, a probe including a second ...


4
David G Wuchinich, William Henriksen, Robert Brendolan, Louis Katz: Scanning apparatus and method. Sonomed Technology, Pennie & Edmonds, November 29, 1988: US04787247 (15 worldwide citation)

A scanning apparatus and method for scanning an object including a frame, a transducer for obtaining information from an object and a motor oscillating the transducer. The motor comprises a spring/solenoid combination driven at the resonant frequency of the spring/motor system. The actual displaceme ...