Patient controlled analgesic injector assembly and method of assembling same to an infuser unit
US5466227A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1994 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1405
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injector assembly and method are provided for assembling the injector assembly to a patient controlled analgesic infuser unit. The injector assembly is provided in one-piece and includes an injector element having first and second portions with a cannula extending therebetween. The first portion is configured for connection to a stopper of a vial containing an analgesic where the connection enables the analgesic to flow out of the vial and through the cannula to the second portion of the injector element upon advancement of the stopper and the connected injector element within the vial by the infuser unit. A drug administration set is permanently connected to the second portion of the injector element for receiving the analgesic from the cannula. After the vial is emptied, the empty vial can be removed from the injector element and a full vial readily can be connected to the injector element without having to provide an additional injector element and disconnect and re-connect the drug administration set from the injector element. This type of injector assembly reduces changeover time, the risk of contamination and needle sticks and the amount of non-recyclable waste and storage…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.