Flexible medullary reaming system
US5908423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1996 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Mar 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/665
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for reaming a bone canal, such as the medullary canal of a femur, has a flexible shaft (12, 92) with a proximal end (16) for engaging a rotary transmission source. A first reamer (14, 61) is coupled to the distal end of the flexible shaft for rotation therewith to prepare the distal portion of the canal. A second reamer (22, 93) coupled with the proximal portion of the shaft to form the proximal end of the lateral portion of the canal and/or the medial calcar region of the canal. The apparatus further comprises a metaphyseal template (70, 80) having the shape of the prosthesis for guiding the reaming apparatus in forming the calcar region of the canal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.