Locking pin plate assembly adapted for fracture fixation
US9237911B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2012 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lockable pin plate assembly which has a pin plate adapted to be secured to stable bone and provided with pin holes for pins for pinning an unstable bone fragment. One or more pin holes are engageable by pins of an integral U-pin. The pins have stop surfaces thereon which are resiliently displaced when the pins are seated to automatically and self-lock the pin and the pin plate to oppose withdrawal and backing out of the pins from the pin plate. In a preferred embodiment, each pin of the U pin has a leading portion and a trailing portion, the leading portion being of smaller diameter to pass freely through an elliptical hole in the pin plate whereas the trailing portion is of larger size to become locked in the pin hole as it is advanced therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.