Surgical handpiece with motor having positive sensor location
First Claim
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.
4 Assignments
0 Petitions
Accused Products
Abstract
A dc permanent magnet motor for a surgical handpiece, comprises a housing and a stator including windings fixed in the housing. A rotor is supported for rotation in the housing and has a forward extending rotatable shaft. A conventional sensor adjacent the windings and rotor has stiff conductive electrodes extending rearward. A printed circuit board disk has plural axial holes along the perimeter thereof defining conductive sockets into which the electrodes plug, which disk is located coaxially rearward of said rotor and windings and is fixed with respect to the housing. A rear-facing, separable connector holder behind the printed circuit board has terminals rear-facing therefrom for connection to an external electrical supply. The holder is fixed with respect to the housing. Electrical connections are effected between the conductive sockets of the printed circuit board and the rear-facing terminals of the holder.
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Citations
15 Claims
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1. A dc permanent magnet motor for a surgical handpiece, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A permanent magnet dc motor for a surgical handpiece, comprising:
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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 plurality of conventional sensors adjacent said windings and rotor, said sensors each having stiff conductive electrodes extending rearward therefrom, said electrodes being arranged in a circumferential array around the axis of said rotor; front and rear coaxial, disk-like printed circuit boards, said front board having a circumferentially spaced array of conductive sockets adjacent the perimeter thereof into which the rear ends of respective ones of said electrodes insert; first circumferentially spaced, conductive pins in an array spaced radially in from said conductive sockets array in said front board, said first conductive pins extending between and connecting said printed circuit boards; a rear facing, separable connector holder behind said printed circuit boards and having rear facing conductors for connection to an external electrical supply, said holder being fixed with respect to said housing; second circumferentially spaced conductive pins in an array spaced radially out from said first pins array, said second pins array connecting said rear board to said holder; means on said front board for electrically connecting ones of said sockets to respective pins of said first pins array in a desired pattern; means on said rear printed circuit board for electrically connecting ones of said conductive pins of said first array to selected ones of said pins of said second pins array in a desired pattern; means effecting connection of said second pins to said rear facing conductors on said holder.
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Specification