Bone implant augment method and apparatus
US10799369B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Sep 3, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00952
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The strength of bone implant attached to a bone is improved by using hybrid inserts which have stems and wings having bone ingrowth surface features and caps having outer surfaces of cured polymethyl methacrylate (PMMA). The stems and wings of the hybrid inserts are inserted into living bone and the bone implant is attached to the hybrid inserts with PMMA cement. Over time, the bone grows into the bone ingrowth surface features. The bone ingrowth strengthens the bonding of the hybrid inserts and the bone implant with the bone over time. The hybrid inserts increase the shear, tensile and torque strength of the bone implants. Bone inserts that do not have ingrowth surface features loosen over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.