Polymer coated device for electrically medicated drug delivery
US7517342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Apr 29, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a catheter with an expandable distal end for delivering one or more medicaments. The catheter is manufactured with materials of construction that allow the transfer of electrical energy from the proximal end of the catheter to the distal expandable end. The catheter also has a means for controlling or manipulating the expandable distal end to expand and contract into various configurations. The distal end of the catheter is processed by a specific method of manufacturing whereby the expandable distal end is coated with one or more layers of a hydrogel copolymer wherein at least one layer of which coating encapsulates one or more medicaments and zero or more charged carriers to facilitate the electrophoretic and electro-osmostic mobilities of the medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.