Patent ID: 7540847
Filing Date: 2009-06-02
Classification: A61H,A61M

Abstract:
1. A selective alarm device for use on a support medium for awakening or alerting a user situated on a support medium of the existence of a predetermined condition without disturbing any other person in the vicinity of the user, including another person situated on the support medium, said device comprising: (i) a vibrating member for use in a location between a support medium and a user situated on the support medium, comprising a vibration mechanism, a vibration transmission region and a vibration dampening region, said vibrating member comprising two primary surfaces, a surface designated for facing the upper portion of the support medium and a surface designated for location nearest the user situated on the support medium, said vibration mechanism when activated being capable of creating vibrations sufficient to alert or awaken the user; said vibration transmission region being composed of a material that provides efficient transmission of vibration through the material and being substantially located between the vibration mechanism and the surface of the vibrating member designated for location nearest the user's body; and said vibration dampening region being composed of material that tends to reduce or dampen the transmission of vibration through the material compared to the transmission region and being located between the vibration mechanism and the surface of the vibrating member designated for facing the upper portion of the support medium; (ii) a sensor/controller comprising one or more elements which function as a sensor and controller, being capable of detecting the presence of a predetermined condition, and upon detection of the condition causing the activation of the vibration mechanism incorporated within the vibrating member; and (iii) one or more power sources for operating the constituents of the device including the sensor/controller and the vibration mechanism; said vibration mechanism when activated being capable of creating vibrations sufficient to alert or awaken the user; said vibration transmission region having a density greater than that of the vibration dampening region; said vibrating member being sufficiently flexible so as not to be uncomfortable to the user when situated between the user and the support medium and being of a sufficient size and dimension to enable the vibration mechanism therein to transmit vibration in sufficient intensity to awaken or alert the user while said vibration dampening region dampens transmission of vibration to the support medium.