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Accurate hand movement assistance

  • US 4,842,607 A
  • Filed: 06/05/1987
  • Issued: 06/27/1989
  • Est. Priority Date: 06/05/1987
  • Status: Expired due to Fees
First Claim
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1. Stabilization apparatus for attenuating living subject hand tremor movements comprising the combination of:

  • a force coupling member receivable on a hand portion of said subject;

    motion-sensing transducer means connected with said coupling member for generating an electrical signal responsive to acceleration movement of said hand portion;

    electrical-to-mechanical transducer meansn mechanically coupled with said force coupling member for applying electrically generated physical force thereto;

    signal processing means electrically coupled with said motion-sensing transducer means and said electrical-to-mechanical transducer means for converting said motion-sensing transducer acceleration signal to a larger electrical-to-mechanical transducer means energizing signal and for energizing said electrical-to-mechanical transducer means into tremor movement opposing mechanical motions; and

    a frequency responsive filter element having selective response to signals of four Hertz frequency disposed in a predetermined location along a signal ltransmission path joining said motion-sensing transducer means, said signal processing means, and said electrical to mechanical transducer means.

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