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Technical Publication No. 05-006 Method of Controlling Flow in a High Magnetic Field

IP.com Disclosure Number: IPCOM000127733D
Publication Date: 2005-Sep-12
Document File: 1 page(s) / 123K

Publishing Venue

The IP.com Prior Art Database

Related People

Gregory L. Bradley: ATTORNEY

Abstract

Transferring or redirecting flow of a gas or fluid in a high magnetic field with the use of piezo actuated valves. Typically this is done with solenoid valves that are unreliable or inoperable within high strength magnetic fields. The actuating action of the piezo valve is completely immune to the effects of the magnetic field.

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Technical Publication No. 05-006

Method of Controlling Flow in a High Magnetic Field

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Bradley J. Adams, James A. Patterson

Transferring or redirecting flow of a gas or fluid in a high magnetic field with the use of piezo actuated valves. Typically this is done with solenoid valves that are unreliable or inoperable within high strength magnetic fields. The actuating action of the piezo valve is completely immune to the effects of the magnetic field.

SPECIFICATION

Using piezo valves as opposed to solenoid valves to redirect flow.

It is an improved method of redirecting flow over the conventional solenoid valve. Solenoid valves will not operate reliably in a high magnetic field.

The application for this invention is where there is a need or desire to redirect flow in a controlled manner within a high strength magnetic field, such as in an MR environment. In a particular case, the piezo-actuated valves could be used with a patient vital signs monitor, such as with the NIBP function of the MEDRAD Veris™ monitor.  Additional uses could be, but not limited to, gas bench valves within a patient monitor, or valves within a ventilator.