Double D key locking prosthesis
US6440171B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Feb 27, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modular prosthesis has an intramedullary rod element which is to be inserted in a bone. The rod has a shaped proximal portion which is telescoped into one end of a bore in the trochanter element. The mating surfaces of the shaped rod and the trochanter bore form a rotationally immovable connection. A neck element is telescoped into the other end of the trochanter bore. The neck and the trochanter have mating surfaces with mating recesses. A key lock element is inserted into the mating recesses to prevent rotational movement between the neck and the trochanter. All the elements are secured together by a bolt through the neck, trochanter and rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.