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Medical handpiece with automatic power switching means

  • US 20040010250A1
  • Filed: 07/11/2002
  • Published: 01/15/2004
  • Est. Priority Date: 07/11/2002
  • Status: Active Grant
First Claim
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1. A medical instrument comprising:

  • a handpiece;

    an electromechanical transducer disposed in said handpiece;

    an electrical circuit disposed at least partially in said handpiece for supplying alternating electrical current of a predetermined frequency to said transducer;

    a probe operatively connected to said transducer for transmitting vibrations generated by said transducer to an operative site in a patient; and

    a switching device mounted to said handpiece and operatively connected to said circuit and said transducer for enabling the supply of power to said transducer during a motion of said probe in a preselected direction relative to said handpiece and for disabling the supply of power to said transducer upon a termination of motion of said probe in said preselected direction.

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