Valved PRN adapter for infusion devices
US5535771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1994 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Aug 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valved adapter for a medical access device includes a body with a longitudinal axis. The body has a proximal first end, a distal second end and a passageway therethrough which has an inside surface. The passageway has a chamber defined by a proximal shoulder and a segmented distal shoulder both projecting inwardly from the surface of the passageway. The chamber is located intermediate the first end and second end of the body. The adapter includes a valve contained within the chamber for selectively obstructing and allowing fluid flow through the passageway. The valve includes an elongate resilient member with an axis substantially coaxial to the longitudinal axis of the body having a proximal end and a distal end. The elongate resilient member is axially compressed between the distal shoulder and the proximal shoulder, the compression biasing the valve to a normally closed position. The proximal end of the resilient member forms a substantially fluid tight seal with the proximal shoulder which obstructs fluid flow through the passageway. The adapter further includes a pusher for selectively further axially compressing the resilient member so that the proximal end of the adapter n…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.