Minimally invasive bone broach
US7632273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Nov 5, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4658
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A broaching system is disclosed for creating a cavity in a bone such that the cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side and such that the cavity is contiguous with a pre-existing conical cavity in the bone. The apparatus comprises a shaft and a broach. The shaft has a longitudinal axis. The broach is mounted to the shaft and has a first cutting side mounted at the acute angle relative to the longitudinal axis of the shaft. The first cutting side is formed to include teeth. The shaft and broach are configured so that when the longitudinal axis of the shaft is advanced into the bone along the axis of the bone, the teeth of the broach form the triangular cavity. A method for cutting a triangular cavity in bone is also described. The method comprises a providing a shaft step, an incising step and a cutting step. The provided shaft is configured to be movable relative to the bone to be prepared and includes a broach coupled thereto to dispose a cutting surface of the broach at an acute angle relative to the shaft. The shaft and broach hav…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.