Injectable polyethylene oxide gel implant and method for production
US5681869A · kind A · utility
3Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/906
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biocompatible poly(ethylene 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 poly(ethylene 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.