Modular elbow
US6699290B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00413
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modular elbow prosthesis includes a humeral and ulnar components and three bearing components. The ulnar component includes a stem and a body including a slot. Two of the three bearing components include flanges that mate with the slot of the ulnar component. The humeral component includes a stem and two arms extending from one end of the stem. An opening is formed in each arm and in two of the three bearing components. The modular elbow may be used in an unconstrained mode by attaching one bearing component to the ulnar component and the other to the humeral component by inserting a pin through the openings in the arms and the bearing component. The two bearing components are then placed adjacent each other such that they articulate about their bearing surfaces. Alternatively, the prosthesis can be utilized in a constrained mode by positioning the flange of the third bearing component in the slot on the ulnar component and positioning the third bearing component between the arms of the humeral component and inserting a pin through the openings in the arms of the third component. In another alternative embodiment, one bearing component may surround a portion of the other bearing …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.