Tourniquet
Patent 4321929 Issued on March 30, 1982. Estimated Expiration Date: 
October 12, 1999. 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 12, 1999. 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 3552383 Therapeutic intermittent compression apparatus Method and means for monitoring cardiac output Patient vital-signs automated measuring apparatus Tourniquet pressure monitor Device for rheoplethysmography by occlusion Method and apparatus for developing and measuring pulsed blood flow Patent #: 4205688 InventorsApplicationNo. 06/084428 filed on 10/12/1979US Classes:600/301, Via monitoring a plurality of physiological data, e.g., pulse and blood pressure600/493, Electric signal generated by sensing means responsive to pulse or Korotkoff sounds600/504, Measuring blood flow in body portion other than heart600/513, Detecting heartbeat electric signal and diverse cardiovascular characteristic600/549, Temperature detection606/202Pneumatic cuffExaminersPrimary: Michell, Robert W.Assistant: Jaworski, Francis J. International ClassesA61B 17/12 (20060101)A61B 17/135 (20060101) A61B 5/022 (20060101) AbstractAn automatic device, such as a tourniquet, and a control system therefor for arresting the flow of blood to the end of a limb, such as an arm or leg or a person. In one form, electronic sensing means senses one or more physiological variables of a patient to whose limb or body a tourniquet has been applied and generates signals which are applied to the inputs of a computer or microelectronic processor, which electrically processes and analyzes such signals and generates control signals for controlling the operation of one or more motors operating pumps for pumping fluid to cuff or restriction means such as a tourniquet to arrest the flow of blood therepast.Other References
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