Injectable polyethylene oxide gel implant and method for production
US5634943A · kind A · utility
26Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1994 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Sep 1, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/906
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biocompatible polyethylene oxide gel implant and method for production which can be injected into the human body for tissue replacement and augmentation. The implant is prepared by dissolving a sample of essentially pure polyethylene oxide in a saline solution in a sealed canister, removing all free oxygen from the container and replacing it with an inert gas, such as argon, and irradiating the canister with a gamma ray source to simultaneously crosslink the polyethylene oxide while sterilizing it. The gel can then be placed into a syringe and injected into the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.