Fluid delivery system
US5346476A · kind A · utility
124Cited by
51References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Apr 29, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/148
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a fluid delivery system comprising a bladder to hold a fluid, the bladder being enclosed in a structure formed from a cap connected to a drive mechanism. The drive mechanism includes a piston driven by a constant force spring, the piston resting against the bladder. Activation of the drive mechanism delivers the fluid at a rate pre-determined by the design of the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.