Drainage and infusion catheters having a capillary sleeve forming a reservoir for a fluid antimicrobial agent
US4623329A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1983 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Dec 15, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for drainage of or infusion into a body cavity. The catheter comprises an elongated tubular shaft having a distal end provided with at least one port near the distal end and intended to be located in the body cavity. The catheter has an open proximal end for connection to a drain, suction conduit or infusion line. A sleeve is mounted about the shaft extending along a portion at least of the internal body surface contacting part thereof between its proximal and distal ends. The sleeve forms a substantially concentric fluid reservoir between the drainage tube and the sleeve. Filling means are provided at the proximal end of the shaft for supplying to the reservoir a fluid antimicrobial agent capable of controlled passage through the sleeve by diffusion. The inner surface of the sleeve is provided with a plurality of longitudinally extending capillary channels or grooves providing uniform distribution of the fluid antimicrobial agent within the reservoir and throughout the length of the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.