×

PULSE MONITORING SYSTEM

  • US 3,815,583 A
  • Filed: 01/19/1972
  • Issued: 06/11/1974
  • Est. Priority Date: 01/19/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for monitoring the body functions of a patient'"'"''"'"'s body comprising:

  • a first wall and a second wall connected together but spaced apart with a portion of said body adapted to extend therebetween;

    a source of light mounted on said first wall for directing light through said body;

    light sensitive means mounted on said second wall and aligned with said source of light to receive said light sub-sequent to said light passing through said body, said means being operable to produce pulsing electrical signals in response to said light being pulsed by blood flowing through said body;

    a radio transmitter connected to said light sensitive means to transmit said signals;

    a radio receiver to receive said signals from said radio transmitter;

    detector means connected to said receiver and being operable to continuously detect and immediately produce a detection signal when any of said electrical signals first become out of a range having a preset upper limiT and preset lower limit; and

    , display means connected to said detector means and being operable to display blood data corresponding to any of said electrical signals;

    alarm means connected to said detector means and being operable to produce a warning signal upon receipt of said detection signal;

    said detector means includes two common collector transistors with emitters connected across a source of electrical energy and two variable resistors connected together to receive said electrical signals, said variable resistors being connected to the bases of said transistors, said detector means further includes a transistor with a control path connected to the emitter of one of said transistors and a load path connected at one end to said source of electrical energy and at the other end to said alarm means.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×