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Feedback control system to reduce the risk of pressure sores

  • US 20050172398A1
  • Filed: 02/11/2005
  • Published: 08/11/2005
  • Est. Priority Date: 02/11/2004
  • Status: Abandoned Application
First Claim
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1. A method of reducing the risk of development of pressure sores in a patient, wherein is provided a mechanical system for automatically adjusting the patient'"'"'s position in a bed or chair, comprising the steps of:

  • (a) specifying a turn interval (b) initializing a timer, thereby starting the measurement of elapsed time;

    (c) determining an initial patient position;

    (d) determining a then-current measurement of elapsed time;

    (e) determining a then-current patient position, (f) performing steps (d) and (e) until the first to happen of (f1) the patient changes position from said initial position, or (f2) said then-current elapsed time is greater than said turn interval;

    (g) if the patient has changed position and said then-current elapsed time is less than said turn interval, (g1) reinitializing said timer, thereby starting again the measurement of elapsed time, and (g2) continuing to perform steps (d) through (f) as needed to reduce the risk of pressure sores in the patient; and

    , (h) if the patient has not changed position and said then-current elapsed time is greater than said turn interval, mechanically adjusting the patient'"'"'s position to a position different from said initial patient position using said mechanical system, thereby reducing the risk of development of pressure sores in the patient,

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