Instrumentation for monitoring blood circulation
Patient vital-signs automated measuring apparatus
Warning apparatus for indicating a threat of impending shock
Blood pulse sensor and readout Patent #: 4063551
ApplicationNo. 06/444379 filed on 11/26/1982
US Classes:600/500, Detecting blood vessel pulsation600/437, Ultrasonic600/479Cardiovascular testing
ExaminersPrimary: Howell, Kyle L.
Assistant: Jaworski, Francis J.
Attorney, Agent or Firm
International ClassesA61B 5/024 (20060101)
A61B 5/0285 (20060101)
A61B 5/026 (20060101)
A61B 8/02 (20060101)
Foreign Application Priority Data1979-07-24 FR
AbstractApparatus for recording, control and early detection of cardiovascular diseases by detection, recording and/or audible and/or visual display of the heart beat frequency and rhythm from a digital pulse provided by a plethysmographic process at a given spot of the body, such as a finger of a hand, includes a digital pulse sensing device. The pulse sensing device consists of a determined frequency generator and an associated sensor, processing circuits, a recording device and/or audible and/or visual display devices. The apparatus includes at least two transducer devices of different physical natures, the output signal of which are processed separately and/or together to provide more accurate information about the heart beat frequency rhythm.