Modular humeral prosthesis for reconstruction of the humerus
US5507817A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00239
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is directed to a modular humeral prosthesis for implantation into a humerus of a patient. The prosthesis includes a proximal humeral component having a platform disposed on an upper end. A tapered projection is disposed on the platform. A cup-shaped fracture cap having a tapered opening with generally the same shape as the tapered projection is removably disposable on the tapered projection. The fracture cap is shaped so as to allow for space between the cap and the glenoid of a patient into whom the prosthesis is to be implanted and thereby allow the bones of the patient's humeral head to be reconstructed by reassembling and securing the bone fragments about the fracture cap. The prosthesis further includes a humeral head having a tapered opening which may be disposed on the proximal humeral component. The humeral head is interchangeable with the fracture cap. The prosthetic humeral head may be inserted into the patient's glenoid to replace the patient's natural humeral head in fracture cases where the natural humeral head is not viable, in arthritis cases where cartilage is degenerated, or where head fracture reconstruction is attempted but fails. The fracture cap a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.