Medical devices having an electrically conductive hydrogel coating
US5403295A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Oct 26, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0017
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device, such as a catheter (10), for location at least partially within a patient's body for a period of at least the order of a day, includes an electrode (11) connected in an electrical circuit (11,12,13) operable to generate by way of the electrode an electric field to inhibit bacterial attachment and colonization on and adjacent to the device/body interface, and the electrode includes an electrically conductive hydrogel coating (11) to define the device/body interface. The coating can be loaded with a salt to ensure conductivity and pH material to stabilize the surrounding hydrogen ion concentration in use of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.