Combination broacher-reamer for use in orthopaedic surgery
US5931841A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/9065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A combination broacher-reamer includes a generally longitudinally symmetrical cutting tool which is provided with a plurality of longitudinal broaching cutting teeth as well as a plurality of axial reaming cutting teeth. According to a presently preferred embodiment, the broacher-reamer is generally cylindrical with a smooth blunt distal tip and a tapered distal cutting portion. The proximal end of the tool is provided with a handle and one or more witness marks are provided on the shank of the tool. If the handle is removable the shank may be coupled to a motor or impacting tool. An exemplary broacher-reamer according to the invention is approximately 6.78 inches long with an overall maximum diameter of approximately 0.843 inches. The proximal end of the tool has a diametrical throughbore which is dimensioned to receive the handle which is approximately 3.94 inches long. The cutting portion of the tool begins approximately 3.0 inches distal of the proximal end and terminates approximately 1.25 inches short of the blunt smooth distal end of the tool. The reaming cutting teeth are arranged in a plurality of helical paths which transect the broaching teeth, each helical path being of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.