Medical devices containing in-situ generated medical compounds
US5820918A · kind A · utility
174Cited by
22References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Jul 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/924
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for impregnating a medical device made from a water absorbable polymer material, e.g., a hydrogel, with a medical compound having low solubility in aqueous solutions, e.g., an antiseptic or radiopaque compound, is disclosed. The device is first infiltrated with an aqueous solution containing a first water soluble, ionizable compound, and subsequently infiltrated with an aqueous solution containing a second water soluble, ionizable compound. The ionizable compounds are selected such that they react after mutual contact to form the medical compound in-situ within the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.