Precision passive flat-top valve for medication infusion system
US4712583A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | May 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7888
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valve for use in medical applications is disclosed which is a highly precise, passive, one-way valve which makes an excellent inlet valve or outlet valve in a drug infusion pump. The valve operates with a very small forward pressure, requires only a small amount of fluid in the valve chamber, and operates in a positive and predictable fashion, even after an extended shelf life. The valve, may be inexpensively molded in one piece, thereby facilitating construction of a disposable pump, and may be installed with the portion of the pump housing contacting the top surface of the valve being flat, thereby further reducing manufacturing costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.