Pressure relief reminder and compliance system

• US 6,030,351 A
• Filed: 06/26/1998
• Issued: 02/29/2000
• Est. Priority Date: 06/26/1998
• Status: Expired due to Term

• Current Assignee: Cleveland Medical Devices Inc.
• Original Assignee: Cleveland Medical Devices Inc.
• Inventors: Float, Jamison J., Schmidt, Robert N., Hendrix, Steven P.
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US09/105,807
• Time in Patent Office: 613 Days
• Field of Search: 600/587, 600/592, 600/595, 73/862.625
• US Class Current: 600/592
• CPC Class Codes: A61B 5/1036 Measuring load distribution, e.g. podologic studies
• CPC Class Codes: A61B 5/447 specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: A61G 5/10 Parts, details or accessories
• CPC Class Codes: A61G 5/1054 Large wheels, e.g. higher than the seat portion

Abstract

A pressure relief reminder and compliance system and method to prevent the formation of pressure sores on a person'"'"'s skin is disclosed. The system comprises sensor which responds according to pressure exerted on the skin; a programmable microcontroller connected to the sensor; means for programming the microcontroller; and indicating means. A programming device operates software to changeably program the microcontroller with certain values of pressure and time, such that the level and duration of pressure on the skin and the duration of the absence of pressure thereon, are compared to the programmed values, is given to the wheelchair user, and the levels and duration of pressure are stored in memory. The programming device also can download from the memory the recorded values for review and analysis by a physician, clinician, therapist or other health professional. The indicators can be an audible alarm, like a beeper or buzzer, or a vibrator.

A method for training a person to reduce the incidence of pressure sores occurring due to pressure exerted on the skin for a certain duration is also disclosed. The method comprises the steps of determining a specific maximum pressure position duration and a minimum pressure relief position duration for that person; measuring the duration of the person in a pressure position; alerting the person when the duration of the pressure position equals the maximum pressure position duration; alarming the person when the duration of the pressure position exceeds the maximum pressure position duration; continuing the alarming until the person is in a pressure relief position; measuring the duration of the pressure position; and prompting the person to continue the pressure relief position until the duration thereof equals the minimum pressure relief duration.

Claims

1. A pressure relief reminder and compliance system to prevent the formation of pressure sores on a person'"'"'s skin, comprising:

a. a sensor which responds according to the pressure exerted on the skin;

b. a programmable microcontroller connected to said sensor, said microcontroller changeably programmable with certain values of pressure and time, such that the level and duration of such pressure and the duration of the absence of such pressure are compared to said values and recorded,

c. means for programming said values into said microcontroller; and

d. indicating means connected to said programmable microcontroller such that indication is provided that said values have been reached.

2. The pressure relief reminder and compliance system of claim 1 further comprising interfacing means between said microcontroller and said means for programming.

3. The pressure relief reminder and compliance system of claim 1 wherein said means for programming is a personal computer.

4. The pressure relief reminder and compliance system of claim 1 wherein said values recorded by said microcontroller can be uploaded into said means for programming and displayed thereon.

5. The pressure relief reminder and compliance system of claim 1 wherein said indicating means is a vibrator.

6. The pressure relief reminder and compliance system of claim 1 wherein said indicating means is an audible alarm.

7. The pressure relief reminder and compliance system of claim 1 wherein said sensor comprises flexible sheets of dielectric material.

8. The pressure relief reminder and compliance system of claim 6 further comprising a silencing push button whereby said audible alarm can be deactivated.

9. A method for training a person to reduce the incidence of pressure sores occurring due to pressure being exerted on the skin for a certain duration, comprising the steps of:

a. providing a quantitative means to allow the determination of a specific maximum pressure duration and a minimum pressure relief duration for the person;

b. measuring the duration of the person in a pressure position;

c. alerting the person when the duration of said pressure position equals said maximum pressure duration;

d. alarming the person when the duration of said pressure position exceeds said maximum pressure duration;

e. continuing said alarming until the person is in a pressure relief position,

f. measuring the duration of said pressure relief position; and

g. prompting the person to continue said pressure relief position until the duration thereof equals said minimum pressure relief duration.

10. The method of claim 9 wherein said alerting is performed by an audible indicating means.

11. The method of claim 9 wherein said alerting is performed by a vibratory indicating means.

12. The method of claim 9 wherein said alarming is performed by an auditory indicating means.

13. The method of claim 9 wherein said alarming is performed by a vibratory indicating means.

14. The method of claim 9 wherein said prompting is performed by an auditory indicating means.

15. The method of claim 9 wherein said prompting is performed by a vibratory indicating means.

16. The method of claim 9 wherein said quantitative means comprises the steps of logging and analyzing pressure position pressure and pressure relief position pressure.