Photochrome- or near IR dye-coupled polymeric matrices for medical articles
US8722076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides polymers comprising pendent photochrome or near IR dye groups, as well as polymeric matrices made from these polymers, which can be used as or in association with a medical article. The polymers can be synthesized using methods that facilitate the preparation of medical articles having good biocompatibility. Exemplary polymeric matrices are in the form of lubricious coatings on medical devices, such as catheters. Visualization by irradiation of the photochrome or near IR dye can improve detection of the polymeric matrix on a device or in the body. This, in turn can improve aspects of a medical procedure, such as device insertion or matrix formation, as well as being useful for assessing the quality of the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.