Head center instrument and method of using the same
US6258097A · kind A · utility
243Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthopaedic instrument for comparing post-surgical joint geometry to pre-surgical joint geometry. The instrument has a head chuck which can be secured to the ball of a ball joint, and an arm having reference indicia thereon. Markings indicative of the pre-surgical joint geometry are made on the bone with reference to the center of the ball. After replacement with a prosthetic ball, the post-operative geometry is verified by securing the head chuck to the prosthetic ball, and comparing the location of the bone markings against the reference indicia on the arm. As needed, adjustments are made in the prosthetic components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.