Hip surgery neck and ball adjustment apparatus and method
US8753405B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The method of accurately and correctly fitting and axially positioning at implantable ball to the neck trunnion of a hip replacement device, as during surgery, the ball adapted to be received in a socket, the ball having a bore, the method including the steps providing the neck trunnion with deformable metallic surface ribs, providing a deformable adapter and fitting the adapter over the ribs, providing a trial ball having a non-metallic bore, and including axially forcibly fitting that bore over the deformable adapter to deform the adapter without deforming the ribs, as the trial ball adjustingly arrives at selected axial position on the neck trunnion corresponding to correct position of the trial ball in the socket, and correspondingly subsequent correct axial positioning of the implantable ball on the neck trunnion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.