Alignment guide for use in orthopaedic surgery
US5484446A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Jun 27, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/155
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The alignment guide of this invention includes a cam rotatable about the longitudinal axis of the alignment guide as defined by an intramedullary rod. A base plate is pivotally connected to the intramedullary rod and includes a pair of cam followers positioned on opposite sides of the intramedullary rod. In use, as the cam is rotated relative to the rod, the cam followers ride against the cam causing the plate to pivot or angulate relative to the rod. A plurality of indicia are formed on the cam to indicate to the surgeon the relative angle between the plate and the rod. The base plate includes a quick connect mechanism to permit the surgeon to quickly attach a device such as a cutting guide or pinning guide to the base plate. The cutting guide is fixed relative to the base plate such that the cutting guide will be at the same angular orientation as the plate relative to the intramedullary rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.