Implant for lower limb amputation
US9724212B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/7887
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Implant for transfemoral or transtibial amputation comprising a stem (3) and a base (2), the base (2) comprising a bone support surface (4) on one side and on an opposite side a soft tissue load bearing surface (5). The stem extends from the base perpendicular to the bone support surface and is configured for insertion in a medullary canal (23) of an amputated bone (20), the bone support surface (4) being configured for abutment against a severed end (22) of said amputated bone. A diameter (d1) of the base is configured to be larger than an average diameter of a shaft (21) of said severed bone, the soft tissue load bearing surface (5) comprising a generally planar or slightly curved central portion (10) and a convexly curved radially outward portion (11) with a curvature greater than the central portion, the central portion (10) being oriented at an angle of between 4° to 8° to the bone support surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.