Detecting body movements
OwnerJames K. Frostinventor
Life of this patent
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Abstract
An electro-mechanical transducer suitable for use in a cot or bed to detect body movements comprising a resiliently compressible assembly which emits noise while being compressed or expanded and a microphone for detecting the noise thus produced thereby to permit of the control of alarm or signal means. The device is particularly designed to give warning of cessation of breathing movements of infants while asleep with the objective of reducing the incidence of so called "cot deaths".
Claims15
An apnoea alarm system for use in a cot or bed to detect body movements comprising a back plate having a microphone supported thereon and projecting forwardly therefrom, a flexible cover attached to the back plate and extending in front thereof thereby to define an intervening space and a resiliently compressible packing arranged within said space, said packing comprising means, comprising a plurality of flexible sheets of material disposed generally parallel to the back plate, for emitting noise in response to being bent or crumpled, the microphone being arranged to detect the noise produced by said means to permit the control of an output means.
Dependencies are inferred from the claim text.