Surgical handpiece with motor having positive sensor location
US5093593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1990 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Dec 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.