Pressure indicator

Details Pressure indicator Pressure indicator

1998-04-17

2000-04-18

Stright, Ronald

Surgery

Devices transferring fluids from within one area of body to...

With flow control means

600 12, A61M 500

Patent

active

060509694

ABSTRACT:
A shunt valve system includes an implantable shunt valve and a device for obtaining pressure setting information from the shunt valve after it is implanted under the scalp of a patient. The device includes a housing that is externally mountable on the patient's head proximate the shunt valve. A fluid-filled chamber is formed in the housing in which a ferromagnetic indicator is movable. The position of the ferromagnetic indicator corresponds to an indicator magnet located within the implanted shunt valve. In one embodiment, the indicator magnet is affixed to a cam which forms a portion of a stepping motor used to a select a pressure setting for the shunt valve. From the position of the ferromagnetic indicator, which corresponds to the indicator magnet and the cam, the pressure setting of the shunt valve can be determined.

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Article Entitled, "The SOPHY Programmable Pressure Valve Model SU8," appears to correspond to U.S. Patent No. 4,443,214. Horological Technology to benefit the Neurosurgeon.
Advertisement material for Medtronic, STRATA.TM. Adjustable Delta Valve.

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