Leak testing of hermetic enclosures for implantable energy storage devices

Methods for testing the hermeticity of casings for power sources intended to power implantable medical device by sensing the presence of vapors escaping from an electrolyte contained therein are described. More broadly, the present leak detection methods are applicable to any sealed enclosure having...

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Bibliographic Details
Main Authors MUFFOLETTO, BARRY C, NEFF, WOLFRAM, EBERHARD, DOUGLAS P
Format Patent
LanguageEnglish
French
German
Published 22.09.2010
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
MAGNETOTHERAPY
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
RADIATION THERAPY
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
ULTRASOUND THERAPY
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Summary:Methods for testing the hermeticity of casings for power sources intended to power implantable medical device by sensing the presence of vapors escaping from an electrolyte contained therein are described. More broadly, the present leak detection methods are applicable to any sealed enclosure having a first part sealed to a second part with a liquid contained therein. The liquid need not occupy the entire volume of the enclosure, but must contain at least one component having a vapor pressure at 25°C of more than about 0.1 mm Hg. This component can assist in the functioning of the device such as an electrolyte, or be added for the sole purpose of leak detection.
Bibliography:Application Number: EP20040024179