Ambulatory infusion system with spring-pressurized reservoir
US5248300A · kind A · utility
42Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ambulatory infusion system includes a spring-pressurized reservoir to facilitate portable use of the system. The system includes a liquid-filled flexible container, and a pair of opposed platens between which the flexible container is removably positionable. Energy-storing, clip-like biasing springs act against the platens to urge them toward each other, thereby effecting pressurization of the liquid within the container. A tubing set of the system preferably includes a non-adjustable flow restrictor, which may be sized for relatively low flow rates to permit the system to be used for catheter patency maintenance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.