Patent References 3614763 Scales annunciator Infant bed and apnea alarm Mercury switch for monitoring position of patient Apparatus in medicine for the monitoring and or recording of the body movements of a person on a bed, for instance of a patient Position sensitive mercury switch Patent #: 4348562 InventorApplicationNo. 06/574969 filed on 01/30/1984US Classes:340/573.1, Human or animal128/204.23, Means for sensing condition of user's body128/205.23, Indicator structure340/573.7, Posture alarm600/529, Respiratory600/595Body movement (e.g., head or hand tremor, motility of limb, etc.)ExaminersPrimary: Swann, III, Glen R.International ClassesG08B 21/00 (20060101)G08B 21/06 (20060101) AbstractA device for awakening a sleeping person when the sleeping person attempts to sleep in a particular sleep posture includes a sensor, a time-delay circuit, and an alarm or other device for generating a stimulus for awakening the person. The time-delay circuit is designed such that it activates the alarm only when the sensor indicates the person is in the particular sleep posture for a predetermined period of time and also stops the alarm when the person stops sleeping in the particular sleep posture. The device can also be used for monitoring the sleeping person's sleep posture for diagnostic purposes. | |