Medical protheses containing a gel-filler comprising principally water and cellulose derivative
US5531786A · kind A · utility
Inventors
Key dates
| Filing date | Jan 28, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Jan 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention relates to a medical prosthesis containing a gel filler material comprising principally a cellulose derivative in water. The gel filler in the prosthesis may further contain a lubricating agent. The invention also relates to a method of augmenting or reconstructing a human breast comprising the steps of subcutaneously implanting a medical prosthesis with the gel filler material into a human body. In another aspect, the invention relates to a method of preparing medical protheses comprising the steps of filling an outer envelope of a medical-grade elastomer with the gel filler material and sealing the envelope to form a medical prosthesis. The components of the gel are preferably biocompatible so as not adversely to affect human beings. The materials used to make the gel filler are non-toxic. The prostheses of the present invention have similar characteristics to the human breast. These protheses may be used for breast augmentation or reconstruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.