Surgical universal positioning block and tool guide
US7857821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2007 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Feb 13, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3983
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A positioning block (10) for use in total knee replacement surgery, permitting five degrees-of-freedom movement relative to a bone element (39) to which it is fixed. The positioning block (10) comprises a rotational mounting element (14) that is removably engaged to the bone element such that the mounting element (14) is selectively rotatable relative to the bone element, about three substantially perpendicular axes of rotation. A guide body portion (12) is engaged with the mounting element (14) such that it is translatable relative thereto along a proximal-distal axis (43) and an anterior-posterior axis (47), while being rotationally fixed relative to the mounting element (14) such that the guide body portion (12) and the mounting element (14) rotate together relative to the bone element (39).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.