Urinary catheter and system
US5295979A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L29/106
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A urinary catheter and system includes a catheter with a drain lumen which is coated with oligodynamic metal and preferably arranged with a coating of a more noble metal for creating an iontophoretic galvanic couple, which drives antimicrobial ions into solution. The exterior of the catheter is also coated in a similar manner to inhibit microbes migrating toward the bladder along the outer surface of the catheter. The system includes a flow rate control device which may be a one-way valve, a filter or both. A collection bag is coupled to the control device. The interconnecting hoses, the flow rate control device(s) and the collection bag are also coated on the interior with oligodynamic metal, preferably silver, and also with a more noble metal, preferably platinum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.