Medical devices
US5154165A · kind A · utility
20Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Nov 26, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L29/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter or other invasive/implant device (40;52) intended for relatively long term use, of the order of a day or more, in a patient's body is provided with an electric field generator (48;53) to inhibit bacterial attachment and colonization on and adjacent the device/body interface. The generator can involve application to the device of electret material (53) or an electrode (48) in or for connection with an electrical circuit (47,50,51). The field is preferably unidirectionally negative and also continuous and constant, but pulsatile, alternating and other field forms are possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.