JPH07303674A - Bed for bed sores prevention - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a bed-shedding prevention bed capable of effectively preventing bed-shedding by automatically changing the contact surface of the body of a patient at regular intervals. [Structure] A mat portion on the upper surface of a bed, which corresponds to the upper half of the body of a patient, is divided into a plurality of fixed mats 4 and a plurality of movable mats 5. Movable mat 5 is bed frame 1
It is fixed on the movable frame 11 of the parallel vertical movement mechanism 10 provided inside. Motor 18 for driving parallel vertical movement mechanism 10
The movable mat 5 moves up and down between the upper position and the lower position of the fixed mat 4 by the operation of the motor 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to beds for preventing bedsores which can prevent bedsores of beds.

[0002]

2. Description of the Related Art When an old person or the like stays in a bed for a long time, the back, waist, shoulders, elbows, and other parts of the skin that come in contact with
Bed sores are more likely to occur.

This is because the weight of the bed is applied to the part, and the subcutaneous tissue of the skin is continuously pressed, so that the blood flow in the part is deteriorated and nutrition is impaired.

[0004]

For this reason, a bedridden elderly person or a sick person who has been unable to move his / her body about the bed for a long period of time has the caregiver stop and turn over, for example, every 2-3 hours. It is necessary to change the posture of to prevent bed sores.

However, such care for changing the posture by turning over is a heavy burden on the caregiver and needs to be performed frequently, which has been a heavy burden on the caregiver.

[0006] The present invention has been made in view of the above-mentioned points, and is for preventing bedsores, which can effectively prevent bedsores by automatically changing the contact surface of the body of a patient at regular intervals. The purpose is to provide a bed.

[0007]

In order to achieve the above object, in the bed for preventing bedsores of the present invention, the mat portion on the upper surface of the bed, which is approximately the upper half of the bed, is divided into a plurality of fixed mats and a plurality of movable mats. The movable mat is fixed on the movable frame of the parallel vertical movement mechanism provided in the bed frame, and the motor for driving the parallel vertical movement mechanism is provided. And is configured to move up and down between a lower position and a lower position.

Here, it is preferable that the plurality of movable mats and the plurality of fixed mats are elongated in the width direction of the bed, and the movable mats and the fixed mats are alternately arranged in the longitudinal direction of the bed at regular intervals. Further, the motor may be provided with a controller that controls forward / reverse rotation at preset times.

[0009]

[Operation / Effect] In the bed for preventing bedsores having such a structure, the movable mat moves up and down by the drive of the motor through the parallel vertical movement mechanism, and the movable mat moves above the fixed mat at preset time intervals. It rises or the movable mat descends below the fixed mat.

By the vertical movement of the movable mat, the part of the bed supporting the upper half of the body of the bed changes between the movable mat and the fixed mat at regular intervals, and the contact surface of the bed changes automatically. With this, bed sores are effectively prevented. Moreover, since only the movable mat moves up and down, the structure can be relatively simplified.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of the bed for preventing bedsores, and FIG. 2 is a plan view thereof. This bed is basically a bed in which a mat (mattress) is mounted on a bed frame 1 having a rectangular parallelepiped shape. 4 and the movable mat 5 are formed separately, and the movable mat 5 is mounted on the movable frame 11 of the parallel vertical movement mechanism 10 and moved vertically.

That is, the fixed large mat 2 is fixed to substantially half (the portion where the user's legs are supported) on the bed frame 1 having a rectangular parallelepiped shape, and the end fixing mat 3 is fixed to the tip portion on the opposite side. To be done.

Between the large fixed mat 2 and the end fixed mat 3, for example, five fixed mats 4 are arranged in parallel in the longitudinal direction of the bed at regular intervals. Each of these fixing mats 4 has a length slightly shorter than the width of the bed, and is formed to have an elongated width of about 50 mm, and each of them is fixed on a claw frame mounted on the frame 1 in the width direction.

Further, movable mats 5 are arranged between the fixed mat 4 and the fixed mat 4, between the large fixed mat 2 and the fixed mat 4, and between the end fixed mat 3 and the fixed mat 4, respectively. Similar to the fixed mat 4, the movable mat 5 has an elongated width of about 50 mm and has a length slightly shorter than the width of the bed.

As shown in FIG. 4, each movable mat 5 is formed by placing a cushion material 5b on a wooden board 5a serving as a base and covering it with a sheet of cloth or the like, which is mounted on the square pipe 6. . Then, the movable mat 5 with the square pipes 6 is provided with the parallel vertical movement mechanism 1 via the two leg portions 7.
It is fixed on the movable frame 11 of 0.

The parallel vertical movement mechanism 10 includes two links 1
2, 13 are connected to each other in an X-shape with a central axis and arranged on both sides, and one end of each link 12, 13 is pivotally supported by a fixed shaft 14,
The other end is pivotally supported by the movable shaft 15.

The lower fixed shaft 14 (which supports the lower end of the link 12) is supported by the lower portion of the bed frame 1, and the upper fixed shaft 14 is supported by the end of the movable frame 11 (which supports the upper end of the link 13). Supported. The movable shaft 15 that supports the upper end of the link 12 and the lower end of the link 13 is movably supported in the horizontal direction at the lower part of the movable frame 11 and the bed frame 1 as shown in FIG.

A motor 18 with a speed reducer is fixed upward at the end of the bed frame 1.
A screw rod 19 is connected to the rotating shaft of the screw 8, and the screw rod 19 is provided at the end of the movable frame 11 and is screwed into the screw hole.

Therefore, when the screw rod 19 is rotated by the rotational drive of the motor 18, the parallel vertical movement mechanism 10 moves the movable frame 11 and the movable mat 5 on the movable frame 11 up and down in a horizontal state.

The motor 18 is connected to a controller 20 and drive-controlled. The controller 20 is composed of, for example, a sequencer having a timer and a motor reversal control circuit, and the timer can be arbitrarily set with a time interval for moving the movable mat 5 up and down, for example, 2 hours.

The motor 18 is automatically stopped by the operation of a limit switch or the like when the movable frame 11 rises and reaches the upper end, and when the movable frame 11 descends and reaches the lower end. Further, the reduction rod motor 18 causes the screw rod 19 to rotate at a very low speed, and the movable frame 11 or the movable mat 5 moves up and down at a very low speed of, for example, about 2.5 mm / sec.

The bed for preventing bedsores constructed in this manner is used for beds of bedridden elderly and sick persons who cannot move their bodies. As shown in FIG. 6, a thin sheet-like mat S is laid on the bed. And the upper body is fixed mat 4
The sick person is placed on the bed so that the legs are located on the fixed large mat 2 while being supported on the movable mat 5 located therebetween.

For example, when the movable mat 5 is in the lowered position as shown in FIG. 1, the fixed mat 4 is higher than the movable mat 5 by a height h (for example, 20 mm). The shoulders and elbows are mainly supported by the fixed mat 4.

Then, while the bed is in use, the controller 2
When 0 operates and a certain time (for example, 2 hours) elapses,
The motor 18 is started, the screw rod 19 is rotationally driven, and the movable vertical frame mechanism 10 is raised by the action of the parallel vertical movement mechanism 10 in a horizontal state and stopped at the rising end shown in FIG. This operation is performed at a very low speed, and operates with little damage to the sick person.

At this time, the movable mat 5 is the fixed mat 4
It rises to a higher position by a certain height h (for example, 20 mm), whereby the back, waist, shoulders, and elbows of the sick person are changed to a state in which they are mainly supported by the movable mat 5.

Further, when a certain time (for example, 2 hours) has elapsed, the motor 18 is restarted in the reverse direction, and the screw rod 19
Are driven to rotate in the opposite direction, and by the action of the parallel vertical movement mechanism 10, the movable frame 11 descends in a horizontal state and stops at the descending end shown in FIG. Then, the upper body of the sick person, that is, the back, waist, shoulders, and elbows are again supported by the fixing mat 4.

This operation is repeated at regular intervals, and the fixed mat 4 and the movable mat 5 alternately support the upper half of the sick person's upper body. , The parts such as elbows will not be pressed for a long time, and bed sores that are likely to occur on the back, waist, shoulders, elbows of the sick person will be prevented.

[Brief description of drawings]

FIG. 1 is a side view of a bedsore prevention bed showing an embodiment of the present invention.

FIG. 2 is a plan view of the bed.

FIG. 3 is an enlarged sectional view taken along the line III-III in FIG.

FIG. 4 is an enlarged sectional view of a movable mat 5.

FIG. 5 is a side view of the bed during operation.

FIG. 6 is a side view of the bed in use.

[Explanation of symbols]

 1-bed frame, 4-fixed mat, 5-movable mat, 10-parallel vertical movement mechanism, 11-movable frame, 18-motor, 19-screw rod, 20-controller.

Claims (3)

[Claims] 1. A mat portion on the upper surface of the bed, which corresponds to the upper half of the bed of the patient, is formed by being divided into a plurality of fixed mats and a plurality of movable mats, and the movable mats are movable by a parallel vertical movement mechanism provided in the bed frame. Fixed on the frame,
A bed for preventing bedsores, wherein a motor for driving the parallel vertical movement mechanism is provided, and the movable mat moves up and down between an upper position and a lower position of the fixed mat by the operation of the motor. 2. The plurality of movable mats and the plurality of fixed mats are elongated in the width direction of the bed, and the movable mats and the fixed mats are alternately arranged in the longitudinal direction of the bed at regular intervals. The bed for preventing bedsores according to Item 1. 3. The bed for preventing bedsores according to claim 1, further comprising a controller for controlling forward / reverse rotation of the motor at preset times.