Vital signs monitoring system
Patent 4270547 Issued on June 2, 1981. Estimated Expiration Date: 
October 3, 1998. 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.
October 3, 1998. 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 3807388 Patient vital-signs automated measuring apparatus Data acquisition, storage and display system Cardiac frequency measuring instrument Patient monitoring system Patent #: 4129125 InventorsAssigneeApplicationNo. 05/948139 filed on 10/03/1978US Classes:600/484, Detecting respiratory condition600/519, Detecting signal repetition rate600/536, Detector responsive to movement induced variation in impedance of body to electric current600/549, Temperature detectionD24/168With external paddle, electrode or contact (40)ExaminersPrimary: Michell, Robert W.Assistant: Jaworski, Francis J. Attorney, Agent or FirmInternational ClassesA61B 5/0205 (20060101)A61B 5/0404 (20060101) A61B 5/0402 (20060101) G06F 19/00 (20060101) AbstractA system is disclosed for monitoring vital physiological signs. Each of the system components utilizes a single hybrid circuit with each component having high accuracy without the necessity of repeated calibration. The system also has low power requirements, provides a digital display, and is of sufficiently small size to be incorporated into a hand-carried case for portable use. Components of the system may also provide independent outputs making the component useful, of itself, for monitoring one or more vital signs. The overall system preferably includes an ECG amplifier and cardiotachometer signal conditioner unit, an impedance pneumograph and respiration rate signal conditioner unit, a heart/breath rate processor unit, a temperature monitoring unit, a selector switch, a clock unit, and an LCD driver unit and associated LCDs, with the system being capable of being expanded as needed or desired, such as, for example, by addition of a systolic/diastolic blood pressure unit.Other References
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