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Surgical handpiece with motor having positive sensor location

  • US 5,093,593 A
  • Filed: 12/18/1990
  • Issued: 03/03/1992
  • Est. Priority Date: 12/18/1990
  • Status: Expired due to Fees
First Claim
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1. A dc permanent magnet motor for a surgical handpiece, comprising:

  • a housing;

    a stator including windings fixed in said housing;

    a rotor supported for rotation in said housing and having a forward extending rotatable shaft;

    a conventional sensor adjacent said windings and rotor and having stiff conductive electrodes extending rearward;

    a printed circuit board disk having plural axial holes along the perimeter thereof defining conductive sockets into which said electrodes plug and located coaxially rearward of said rotor and windings and fixed with respect to said housing;

    a rear facing, separable connector holder behind said printed circuit board and having first terminals rear facing therefrom for connection to an external electrical supply, said holder being fixed with respect to said housing;

    means electrically connecting said conductive sockets of said printed circuit board to said rear facing terminals of said holder.

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  • 4 Assignments
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