Patent · US Active

Miniature pump device with an anti-free flow valve

US8696336B2 · kind B2 · utility

0Cited by

16References

9Claims

0Family size

Assignee

Sterling Investments, LC · US

Inventors

Stephen C. Jacobsen · Salt Lake City, US
Shane Olsen · Farmington, US

Key dates

Filing date	Oct 22, 2009
Grant date	Apr 15, 2014
Priority date	—
Expiry date	May 18, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7836
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A miniature unidirectional valve configured to restrict the free flow of fluid through the valve includes a valve body having an inlet and an outlet. A flexible membrane is movably disposed over the inlet and outlet, and movable between an open position and a closed position. The flexible membrane is movable by a pressure from the inlet to move the membrane to the open position. A control chamber is disposed in the valve body adjacent the fluid flow path, and configured to apply a pressure against the membrane to move the membrane to the closed position to restrict fluid flow through the valve. A preload structure is associated with the flexible membrane, and biases the flexible membrane toward the closed position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.