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Patient monitoring system

  • US 5,802,494 A
  • Filed: 08/05/1996
  • Issued: 09/01/1998
  • Est. Priority Date: 07/13/1990
  • Status: Expired due to Term
First Claim
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1. A patient monitoring system comprising:

  • patient data acquiring means, located within a hospital sickroom where a patient exists, for acquiring patient image data including an image of the patient, said patient data acquiring means an image pick-up device for outputting the patient image data corresponding to the image;

    means for detecting facial outline of the patient on the basis of the patient image data;

    means for determining facial feature candidate regions on the basis of at least the facial outline;

    means for processing image data corresponding to each of the facial feature candidate regions, to detect some facial features of the patient;

    means for checking a difference between a real-time facial pattern formed of the detected facial features and a facial pattern indicating an normal state and for detecting frequent appearance of strange expressions represented by the real-time facial pattern to output critical state information;

    display means, located within a monitor room separate from said hospital sickroom, including a display monitor for displaying said image of said patient; and

    data transmitting means, located within said hospital sickroom, for transmitting said patient image data acquired by said image pick-up device to said display means in response to the critical state information to permit the physician examine the medical condition of the patient.

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