Patents Assigned to Kabushiki Kaisha Copal Takeda Medical Kenyusho
  • Arterial pressure measuring apparatus
    Patent number: 4597393
    Abstract: An arterial pressure measuring apparatus which comprises in combination a cuff adapted to be applied to a portion a human body where arterial pressure is measured, a light emitting diode, a phototransistor, a transducer, a pump for the control of the cuff, a control unit for the pump, a transducer for measuring the pressure of the cuff, a current control circuit for the light emitting diode, a DC amplifier circuit, an AC amplifier circuit for the output of the phototransistor and an operation circuit.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: July 1, 1986
    Assignee: Kabushiki Kaisha Copal Takeda Medical Kenyusho
    Inventors: Ken-ichi Yamakoshi, Hideaki Shimazu