Switched resonant ultrasonic power amplifier system

Details for Australian Patent Application No. 2004224955 (hide)

Owner Covidien AG

Inventors McPherson, James W.; Orszulak, James H.

Agent Spruson & Ferguson

Pub. Number AU-B-2004224955

Priority 60/515826 30.10.03 US; 60/527812 08.12.03 US; 60/538202 22.01.04 US

Filing date 29 October 2004

Wipo publication date 19 May 2005

Acceptance publication date 23 December 2010

International Classifications

A61B 18/00 (2006.01) Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body

B06B 1/02 (2006.01) Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency - making use of electrical energy

H03F 1/02 (2006.01) Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation

H03F 3/217 (2006.01) Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Event Publications

11 November 2004 Complete Application Filed

  Priority application(s): 60/515826 30.10.03 US; 60/527812 08.12.03 US; 60/538202 22.01.04 US

19 May 2005 Application Open to Public Inspection

  Published as AU-B-2004224955

20 September 2007 Change of Name(s) of Applicant(s), Section 104

  Sherwood Services AG The name of the applicant has been changed to Covidien AG

23 December 2010 Application Accepted

  Published as AU-B-2004224955

21 April 2011 Standard Patent Sealed

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