Intramedullary based and omni-positionable cutting guide instrumentation for femoral epiphysis resection for knee prosthesis placement and a method of operation thereof
US11116526B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 17, 2017 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Oct 18, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/564
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intramedullary based & omni-positionable cutting guide instrumentation for femoral epiphysis resection for knee prosthesis placement comprising: an intramedullary placement guide (1,27) in a medullary cavity of a femoral epiphysis having an anterior/posterior adjustment mechanism (33); posterior rotational referencing sizing jig (8) for fastening to the anterior/posterior adjustment mechanism (33) and configured for referencing anterior (10) and posterior (11, 18) surfaces of the femoral epiphysis to adjust the anterior/posterior offset of the anterior/posterior adjustment mechanism (33); and a punch card (20) for subsequent fastening to the anterior/posterior adjustment mechanism (33) and comprising a plurality of position referencing apertures (21a-21d) for receipt of at least one locking pin (23) of a cutting block guide (5) to allow the anterior/posterior positioning of the cutting block guide (5) at a first position (e.g. FIG. 10) for making a first resection (e.g. 24) and at a second position (e.g. FIG. 11) for the purposes of making a second resection (e.g. 37).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.