Percutaneous access device
US5059186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A percutaneous access device for aseptically introducing catheters or other tubes into the body, is disclosed. In one aspect, the device comprises a valve housing having a tapered inner bore; a tapered tubular valve means which is inserted into the valve housing bore and comprises one or two valves; and a valve cap which is screwed into the valve housing behind the valve. The valve means, housing and cap have bores along a common axis to permit the insertion of a tube such as a catheter through the device and into the body. The cap and valve housing cooperatively compress the valve means to selectively seal the valve bore about the catheter, close the valve bore when the catheter is removed, and provide anti-microbial wiping action of the catheter during insertion. The valve means may comprise two valves, a hemostatic sealing valve and an anti-bacterial squeegee valve which provides accelerated release of the anti-bacterial agent under mechanical compression. Alternatively, the two valves may comprise a first, convex hemispherical valve which provides an air reflux barrier and mechanical seal when the catheter is not present and a second, cylindrical valve compressed between the fi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.