Methods of manufacturing and designing a lightweight femoral stem for hip implants
US10813766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 7, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/56
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing a femoral stem for a hip implant includes forming a femoral neck extending from a proximal end of the femoral stem towards a distal end of the femoral stem, forming an upper section connected to and extending from the femoral neck towards the distal end of the femoral stem, and forming a lower section connected to and extending from the upper section to the distal end of the femoral stem. Further, a method for designing a femoral stem for a hip implant includes generating a customized femoral stem model to match an information of a patient, generating at least one proximal-distal solid rib in the upper section, calculating density and stress distributions for an open lattice and for a closed lattice, and selecting a unit cell type and a pore size for the open lattice and the closed lattice to match a density and/or a stiffness of the patient's femur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.