Patient monitor
Patent 4020482 Issued on April 26, 1977. Estimated Expiration Date: 
April 26, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 26, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2260715 2795668 2818477 3533095 Load signaling device for a patient's foot Patent #: 3974491 InventorApplicationNo. 05/678460 filed on 04/19/1976US Classes:340/573.4, House arrest system, wandering, or wrong place200/85R, WEIGHT340/626, Pressure340/666, Weight5/940, WITH ALARM MEANS600/595Body movement (e.g., head or hand tremor, motility of limb, etc.)ExaminersPrimary: Swann, III, Glen R.International ClassA61G 12/00 (20060101)AbstractAn elongated air inflated flexible bag is placed below the mattress of a hospital or nursing home bed and connected to a pressure actuated electrical switch signal at a remote attendant's station. The switch is a normally closed low pressure switch that remains open for as long as a patient's weight maintains an air pressure greater than the preset actuating pressure of the switch and closes when the patient's weight is removed and the pressure in the bag is thereby lowered, energizing a signal at the attendant's station. | |
