Apparatus for preparing femoral cavity using vibration under operation of fixing guide unit
US7189241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Nov 10, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/1668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein is a femoral broaching apparatus for use in preparing a femoral cavity for implantation of a prosthetic joint in surgical orthopedic artificial hip joint replacement arthroplasty procedures. The apparatus comprises a fixing guide unit fixed in the femoral cavity by an interference fit, a cavity preparing broach coupled to the fixing guide unit in a longitudinally movable manner, and a vibration-generating unit coupled to the cavity preparing broach for allowing the cavity preparing broach to perform the preparing of the femoral cavity under operation of the fixing guide unit. According to the present invention, a femoral cavity having an intended accurate shape can be easily prepared using mechanical vibration rather than a manual operation, thereby ensuring operational convenience. Further, since the preparing of the femoral cavity is performed under axial guiding operation of a fixing guide unit, the shape accuracy of the resulting femoral cavity as well as the positional accuracy of a tool, such as a surgical broach, can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.