JP2000232924A - Device for evaluating cushion mat for bedsore prevention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evaluate a cushion mat for bedsore prevention based on a fixed reference. SOLUTION: A plurality of through-holes 3 are orderly perforated on the upper surface plate 2' of a lower surface opened box 2 mounted on a base plate 1, freely vertically movable sliding rods 4 are fitted to the respective through-holes 3, vertical movement guides 5 communicating with the respective through-holes 3 are arranged on the lower surface of the upper surface plate 2' and the change of a voltage applied to the guides 5 by the vertical movement of the sliding rods 4 in contact with the guides 5 is measured. Then, electronic force balances 6 are arranged on the upper ends of the respective sliding rods 4 and the pressurizing surfaces 7 for the cushion mat of the same area as the pressure receiving surfaces 6' of the electronic force balances 6 are arranged on a lower end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for evaluating the quality of a cushion / mat for preventing pressure ulcer in a bed or a wheelchair.

[0002]

2. Description of the Related Art Conventionally, when a disabled person or an elderly person having paralysis in a body uses a wheelchair or a bed, a cushion or mat is used to prevent pressure sores (bedsores). The conventional device for evaluating the performance of these cushions and mats is a thin sheet-like device incorporating a pressure sensor (hereinafter referred to as an electronic meter) in which the pressure between the occupant and the cushion is arranged in a matrix. Since this sheet has a built-in pressure sensor, it is difficult to deform three-dimensionally. At the time of three-dimensional deformation, the position information of the sensor cannot be obtained,
It is unknown where the pressure is. Furthermore, at the time of three-dimensional deformation, the measurement direction of the pressure sensor was also unknown, and it was not clear which direction the pressure was.

[0003]

[Problems to be solved by the invention]
Since the sensor position is constant and only the pressure in the vertical direction is measured, it is possible to accurately measure how much pressure is generated at which position as compared with the conventional one. It is another object of the present invention that the displacement amount (length) of the cushion due to the pressure applied to the cushion can be measured by the displacement sensor, and the pressure and the deformation of the cushion can be simultaneously determined.

[0004]

According to the present invention, a plurality of through holes are neatly formed in an upper plate of a lower opening box mounted on a base plate, and each of the through holes is vertically movable. A moving guide is fitted on the lower surface of the upper plate, and a change in the voltage applied to the guide is measured by raising and lowering the sliding rod in contact with the guide. An electronic scale is provided at the upper end of the moving rod, and a cushion / mat evaluation device for pressure ulcer prevention is provided at the lower end with a cushion / mat pressing surface having the same area as the pressure receiving surface of the electronic scale. A contact point provided on the sliding rod is slidably brought into contact with the coil, and a DC voltage is applied to the cushion / mat evaluation apparatus for pressure ulcer prevention according to the first aspect of the present invention.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A lower surface opening box 2 is placed on a base plate 1,
A cushion or mat 10 is disposed inside the lower opening 2 ". The cushion or mat 10 is a cushion or mat 10 placed on a seat 12 of a foldable wheelchair 11.

[0006] A plurality of through holes 3 are regularly formed in a checkerboard or staggered pattern in the upper surface plate 2 'of the lower opening box 2, and a sliding rod 4 is fitted into each of the through holes 3 so as to be vertically slidable. .

An elevating guide 5 communicating with each through hole 3 is provided on the lower surface of the upper plate 2 ', and a change in the voltage applied to the guide 5 is measured and recorded by elevating the sliding rod 4 in contact with the guide 5. It is supposed to.

An electronic scale 6 (load cell) is provided at the upper end of each sliding rod 4, and a pressing surface 7 having the same area as the pressure receiving surface 6 'of the electronic scale 6 is formed at the lower end. The pressing surface 7 is supported by the upper surface of the cushion or mat 10 placed on the base plate 1.

A resistance coil 8 is housed in the guide 5, and a contact 9 provided on the sliding rod 4 is slidably contacted with the coil 8, and a DC voltage is applied to the coil 8. A change in voltage can be measured and recorded as the contact 9 moves up and down.

Therefore, even when a weight (load) is applied without moving the horizontal position of the electronic scale 6, it is possible to accurately know, for example, which part of the buttocks has been measured. Also, vertical weight (load) can be measured.

FIG. 1A shows wiring, FIG. 3A shows a conventional cushion / mat evaluation sheet 13, FIG. 3B shows a front view of the seat 13 under a load, and FIG. The distance between the electronic scales 6 and 6 in the non-hanging state, d is the distance in the hanging state, 14 in FIG. 2 is the rear wheel of the wheelchair 11, 15 is the front wheel, 16 is the steering wheel, 17 is the footrest, and 18 is the elbow rest. It is.

[0012]

Advantages of the Invention You can know the pressure applied to the body when sitting on various cushions. 2. You can see the amount of deformation of the cushion when sitting on various cushions. 3. You can know the body shape when sitting on various cushions. 4. Sitting under the same conditions allows comparison of cushion pressure dispersion performance. 5. From the above 1 and 2, the degree of dispersion of body pressure can be known. 6. You can see which parts of your body are under a lot of pressure.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a cushion / mat evaluation device for pressure ulcer prevention of the present invention.

FIG. 2 is a vertical sectional side view showing a state in which a cushion mat is placed on a wheelchair.

FIG. 3A shows a conventional sheet-like evaluation device. (B) The figure shows the sheet-like evaluation device in a state where weight is applied.

[Explanation of symbols]

 Reference Signs List 1 base plate 2 bottom opening box 2 'top plate 3 through-hole 4 vertically movable sliding rod 5 lifting guide 6 electronic meter 6' pressure receiving surface 7 cushion / mat pressing surface 8 resistance coil 9 contact

Claims (2)

[Claims] 1. A plurality of through-holes are neatly formed in an upper surface plate of a lower surface opening box mounted on a base plate, and a vertically movable sliding rod is fitted into each of the through holes, and each lower surface of the upper surface plate is provided with a respective through-hole. An elevating guide that communicates with the hole is provided, a change in voltage applied to the guide is measured by elevating the sliding rod in contact with the guide, and an electronic meter is provided at an upper end of each of the sliding rods, and an electronic meter is provided at a lower end. Cushion / mat evaluation device for pressure ulcer prevention, which is provided with a cushion / mat pressing surface having the same area as the pressure receiving surface. 2. A guide coil provided with a resistance coil,
2. The cushion / mat evaluation apparatus for preventing pressure ulcer according to claim 1, wherein a contact provided on the sliding rod is slidably contacted with the coil and a DC voltage is applied.