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Apparatus for assisting in the application of cardiopulmonary resuscitation

  • US 5,496,257 A
  • Filed: 04/22/1994
  • Issued: 03/05/1996
  • Est. Priority Date: 04/22/1994
  • Status: Expired due to Fees
First Claim
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1. An apparatus for assisting in the application of cardiopulmonary resuscitation to a patient of a predetermined body type, comprising:

  • a housing capable of being placed on a patient'"'"'s chest, said housing having at least one surface thereon adapted to receive a manually applied force;

    a cushioned member extending from said housing, wherein said cushioned member contacts the patient'"'"'s chest when said housing is placed on the patient and said manually applied force is applied to said housing;

    an electronic force sensor coupled to said cushioned member, wherein said electronic force sensor produces a first sensor signal indicative of said manually applied force applied to said housing;

    an electronic blood flow sensor coupled to said housing and attachable to the patient, wherein said blood flow sensor measures blood flow in the patient and produces a second sensor signal indicative of the blood flow;

    a microprocessor contained within said housing, said microprocessor including a comparitor means for comparing said first sensor signal to a predetermined optimal compression force and comparing said second sensor signal to a predetermined optimal blood flow rate;

    a warning means controlled by said microprocessor for providing a first warning alarm when said microprocessor determines that said second sensor signal is not within a predetermined range of said optimal blood flow rate;

    a first display coupled to said housing for providing a visible display indicative of said first sensor signal; and

    a second display for providing a visible display indicative of said second sensor signal.

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