Surgical drill with drive shaft and drill bit that, after disengaging the drill bit from the drive shaft, allows the drill bit to be driven in reverse
US9186156B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Sep 18, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/08021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A chuck assembly for use with a surgical drill. The chuck assembly is configured to receive a drill bit. The chuck assembly includes an input drive shaft and a linear clutch coupled to the input drive shaft. The linear clutch has an inner coupler. The linear clutch transfers rotary motion from the input drive shaft to the inner coupler when the inner coupler is exposed to a displacing force that causes the inner coupler into engagement with the input drive shaft. A rotary clutch is coupled to the input drive shaft. The rotary clutch has an outer coupler. The rotary clutch transfers rotary motion from the input drive shaft to the outer coupler only when the input drive shaft rotates in a reverse direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.