Drilling apparatus and method
US4612922A · kind A · utility
Inventor
Key dates
| Filing date | Aug 22, 1983 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Aug 22, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drill assembly includes a handle carrying a mount for a pneumatic drill motor, and an elongated tubular support enclosing an extended motor shaft which carries a drill bit chuck projecting from the end of that support. The drill assembly coacts with a drill guide assembly including an elongated tubular guide for receiving the tubular support in sliding relation, and having a rotary bearing at its lower end for rotationally supporting the drill bit. The lower end face is concave to enable seating on the prosthesis tip to be drilled. The drill guide assembly includes an offset handle and a stop clamp and depth gauge for coaction with the drill assembly handle to control the depth of drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.