Intramedullary referenced humeral head resection guide
US5108396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Jun 7, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/1778
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for guiding the resection of the head of a humerus is provided. The apparatus includes an intramedullary alignment member having a longitudinal axis and structured for substantial axial alignment with the intramedullary canal of the bone, one point of reference for the resection. The apparatus also includes an extramedullary alignment member and a collar rotatably mounted on the intramedullary member for rotating the extramedullary alignment member about the longitudinal axis of the intramedullary alignment member to a desired degree of retrotorsion. A cutting block and a first shaft and a second shaft in a perpendicular orientation relative to the first shaft for positioning the cutting block in a desired orientation relative to the head of the bone are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.