System for administration of a liquid agent to a patient with a syringe pump
US5713875A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Jul 23, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1452
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system is provided for accommodating the use of a syringe pump to inject a liquid agent into a patient from a vial having an internal chamber occluded at one end by a stopper located in the chamber to sealingly engage the vial and slide within the chamber. The system includes a plunger having a bearing end to be engaged by a movable pushing member of the syringe pump and having a drive end adapted to engage the stopper. A hollow piercing needle is mounted to the plunger to be connected in fluid communication with the patient and has a piercing end to penetrate the stopper. The needle moves with the plunger and stopper relative to the chamber as the liquid is discharged from the vial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.