Patent · US Expired

Process for the adjustment of a switchable flow limiting apparatus, and an apparatus operating according to the process

US5667504A · kind A · utility

160Cited by

5References

12Claims

0Family size

Inventors

Hans D. Baumann · Rye, US
Karl Otto · St. Lunaire, CA
Kai-Jurgen Hinrichs · Kiel, DE
Wolfgang Graczyk · Kiel, DE
Jorg Peters · Düsseldorf, DE

Key dates

Filing date	Oct 11, 1994
Grant date	Sep 16, 1997
Priority date	—
Expiry date	Oct 11, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S128/903
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A process and an apparatus for adjustment of a switchable, flow-limiting device for limited flow of liquids or gases employs a remote service device. The flow-limiting device and the service device are spatially separated and there is no bodily connection between the two. Energy necessary for adjustment of the flow-limiting device is transmitted from the service device into an infusion pump that contains the flow-limiting device. The flow-limiting device is a valve having three stable operating positional states. The valve can only be switched while energy is being transmitted from the service device.

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