KR100335661B1 - Bed having a function of assisting blood circulation - Google Patents

Abstract

The present invention relates to a bed that helps blood circulation, and in particular, the bed structure of the part where the body touches is deformed at regular time intervals or irregularly (up and down movement) to change the pressure applied to the body to smooth blood circulation in the body. . The bed has a structure that deforms the height of the needle-shaped beams composed of a plurality of longitudinal beams. In one embodiment, the bed is provided at the lower part of the needle-shaped bed, and is driven by a motor to transform the rotational motion into a reciprocating motion. Force is transmitted to the lever connected to the support connected to the lower portion of the upper and lower adjusting device for raising or lowering each beam of the needle. At this time, each of the beams to make the upward movement or downward movement every other, it is possible to adjust the height of the plurality of beams with two motors as a whole. As a result, the effort to change the position of the patients in order to improve the blood circulation of the patients with a lot of time lying in the bed can be almost reduced.

Description

Bed having a function of assisting blood circulation}

The present invention relates to a bed that helps blood circulation, and more particularly, to a bed for smoothing blood circulation in the body by changing the pressure applied to the body by moving up and down at regular intervals or at irregular intervals. will be.

Pressure sore or bed sore occurs in people (mainly critically ill) who have to lie in bed or sit in a chair for a long time (usually in critically ill), where small blood vessels in the skin or muscles are pressed or twisted due to body weight It is caused by blocking the blood supply. The most common areas are the heels, elbows, shoulders, and hips. Symptoms of bedsores usually begin with a slight redness and small loss of skin at first, and if not properly treated, necrosis progresses rapidly, resulting in severe tissue damage. However, it is very important that the symptoms of bed sores can be almost prevented if they are thoroughly prevented, so doctors, nurses, and caregivers work hard to prevent bedsores in cases of uncomfortable or impossible behavior. Although pressure sores can be prevented, it can be easily caused by a moment of neglect, and it is a disease that requires a lot of effort and time for healing.

Among the known facts, the best way to prevent bedsores is to change the position of the patient who is unable to move by pressing on the bed by changing the posture at regular time intervals of about 2 hours. However, changing the posture of a lying patient every two hours for more than a few days or months is not as easy as it can be, requiring tremendous attention and sacrifice from medical staff or caregivers. In order to solve this problem, there is a need for a device to replace posture with human hands, and many methods have been mobilized all over the world, but there is no special way to solve this problem.

An object of the present invention is to provide a bed that helps blood circulation for the prevention of bedsores.

In addition, another object of the present invention is to provide a bed for helping the blood circulation, the user is convenient to adjust the time interval.

1 is a perspective view for explaining a general bed having a needle-like structure to which the present invention is applied.

2A and 2B are schematic perspective views illustrating a state in which a portion of the bed of the bed according to the present invention is raised and the other portion is lowered.

3 to 5 are a plan view, a front view and a side view of a bed to help blood circulation according to the present invention.

Figure 6 is a schematic diagram for explaining the mechanism of the up and down adjustment device for adjusting the height of the beams constituting the bed of the bed applied to the present invention.

7 is a perspective view showing in more detail the support portion shown in FIG.

8 is a block diagram showing a driving circuit of the up and down adjustment apparatus applied to the present invention.

9 is a view showing a control panel that can be adjusted by the user applied to the present invention.

<Explanation of symbols for main parts of the drawings>

1, 2 beams, 30 beds

31 ... bed frame, 33 ...

34 ... rail, 35 ... bed

42 wheel, 44 lever

45 support, 60 motor

62 ... ballscrews, 64 ... links

72, 74 ... roller, 82 ... microprocessor

92 ... on-off switch, 94 ... timer

The present invention is a needle bed having a plurality of longitudinal beams in order to achieve the above technical problem; At least one support attached to a bottom of each needle of the needle to support each beam; A lever connected to the support to transfer a vertical adjustment force to the support; And a coupling mechanism for transmitting a force to the lever by driving a motor, the bed comprising: a power switch for inputting power by a user; A timer for adjusting a time interval of vertical movement of the beams; And a microprocessor for controlling the driving of the motor in accordance with the input of the timer; provides a bed for helping blood circulation, further comprising a control panel.

Preferably, the connecting mechanism is a ball screw to change the rotational motion of the motor to reciprocating motion; A link for transferring the reciprocating motion from the ball screw; And a wheel connecting the link and the lever and rotating while touching the ground.

Preferably, the support is characterized in that the roller is attached to each other in the front and rear and left and right directions to prevent shaking.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the preferred embodiments of the present invention will be described in more detail.

According to Figure 1, the bed structure to which the present invention is applied is composed of a plurality of beams (1, 2), in the present invention by modifying the height of the needles (1, 2) of the needle shown in Figures 2a and 2b Adjust the height of the beams that touch the body in contact with the bed.

The present invention is provided in the lower part of the needle bed as an example, and is driven by a motor to transform the rotational movement into a reciprocating motion, a force is transmitted to the lever connected to the support connected to the lower part of each beam to raise each needle bed Or it is sufficient if the structure is provided with a vertical adjustment device to lower. At this time, if each of the beams to the up or down movement every other, it is possible to adjust the height of the plurality of beams with two motors as a whole. The bed which helps blood circulation of the present invention can cover a thin matrix (not shown) on the beams and prevent the beams from escaping and provide a cushion to some extent.

Referring to Figures 3 to 9, the configuration and operation of the bed to help blood circulation of the present invention will be described in more detail.

First, the configuration of the bed to help blood circulation of the present invention will be described. 3 to 5 are a plan view, a front view and a side view of a bed to help blood circulation according to the present invention. As shown in the figure, the bed 30 to assist blood circulation according to the present invention is attached to the bed 35 having a plurality of longitudinal beams 1 and 2, attached to the bottom of each of the needles At least one support 45 supporting each beam, a lever 44 connected to the support to transfer the up and down adjustment force to the support, and a connection mechanism for transmitting a force to the lever by driving the motor (60 in FIG. 6). And (62, 64). In addition, according to FIG. 3, each of the beams 1 and 2 is provided with a shandong shaft 33 so that every other one performs one of the same shandong. 4 and 5, a ground or rail 34 is provided to allow the wheel 42 to move in rolling motion.

Figure 6 is a schematic diagram for explaining the mechanism of the up and down adjustment device for adjusting the height of the beams constituting the bed of the bed applied to the present invention. According to FIG. 6, the connecting mechanism includes a ball screw 62 for converting the rotational motion of the motor 60 into a reciprocating motion, a link 64 for transmitting the reciprocating motion from the ball screw 62, and a link and a lever. It comprises a wheel 42 that connects and rolls while touching the ground or rail 34.

The mechanism of the up-and-down adjustment device shown in FIG. 6 is just one exemplary embodiment, and a person having ordinary skill in the art may configure various modified embodiments for moving each beam. Could be. Therefore, the variation of the various up and down control devices will not be described in detail. However, for the sake of understanding, some modifications will be briefly described below although not shown in the drawings. First, it is possible to simplify the complicated up and down adjustment mechanism by connecting the rack to the support of the lower end and forming a pinion on some of the racks so that the rotational force from the motor is converted to the up and down movement of the rack via the pinion. Is higher. Secondly, when each beam is hung on the upper fixed pulley and the winch wheel is configured to rotate in accordance with the rotation of the motor in the lower part of the beam, the rope hanging by the rotation of the motor is wound around the winch while the height of the beam is increased. It can be adjusted. This structure is a bit complicated and the strips are exposed at the top of the beam. Third, the two sliding links that rotate at the bottom of the beam link the X letter and the sliding groove at the intersection portion is placed so that the sliding link is opened and closed by the rotation of the motor to adjust the height of the beams. This structure is rather complicated and expensive to rigidly configure the sliding link. These variants have some disadvantages but are techniques that can be applied to implement the present invention.

7 is a perspective view showing in more detail the support portion shown in FIG. According to Figure 7, the support 45, as shown to be supported by a guide in Figure 3, the rollers 72, 74 are attached to each other in the front and rear and left and right directions to prevent the shaking.

9 is a view showing a control panel that can be adjusted by the user applied to the present invention. According to FIG. 9, the bed includes a power switch 92 for turning on power by a user, a timer 94 for adjusting a time interval of vertical movement of the beams, and a microcontroller for controlling the driving of the motor according to the input of the timer. The control board further includes a processor (82 of FIG. 8).

Hereinafter, the operation of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the accompanying drawings as a matter of convenience, it will be apparent to those skilled in the art that various modifications may be made without being limited to the present embodiments, and thus, these modifications will not be described in detail. .

It is an object of the present invention to provide a top plate of a bed that can change the contact area between the patient and the bed at regular time intervals, away from the concept of a conventional flat bed. It is also very important that the mechanical mechanisms under the bed be developed so that the bed tops can operate in optimum conditions (low noise, low vibration, patient comfort). That is, the object is to provide such an electric drive mechanical device that can be perfectly applied to the bed top plate that is already provided.

Therefore, the basic shape of the bed of the present invention has a bed-like structure shown in Figures 1 and 2a and 2b, which has a flat bed like a general bed, but for the purposes of the present invention blood circulation of the user In order to achieve this, several beams 1 and 2 in the longitudinal direction are separated. Although only six beams are shown in the drawing, in practice, the number of parts may be about 12 or more, and the number of the six beams may be applied although it is less effective. In addition, these beams can be designed to have an appropriate ergonomic size because the contact area with the patient should not be too wide.

These beams 1 and 2 are placed on the bed frame 31 constituting the bed so as to be movable in parallel with each other to form a top plate of the bed, that is, a couch 35. The bottom of each beam of the needle is attached to at least one support 45 for supporting each beam, and receives the driving force of the motor 60 from the lever 44 through the support 45 to the vertical adjustment force. The lever 44 is a coupling mechanism 62, 64 for converting the rotational motion of the motor into a reciprocating motion by driving the motor 60, that is, a ball screw for converting the rotational motion of the motor 60 into a reciprocating motion ( 62), a link 64 for transmitting the reciprocating motion from the ball screw 62, and a wheel 42 that connects the link and the lever and rotates while touching the ground or the rail 34 to transmit the up and down adjustment driving force. Receive. At this time, the wheel 42 is rotated by the link 64 to move the lever 44 in a certain range, the support 45 is moved up and down by the movement of the lever 44. The shanghai-dong shaft 33 collects shanghai-dong of each support 45 to perform the same movement.

Preferably, the support 45 is a roller (72, 74) is attached to each other in the front and rear and left and right directions can prevent the left and right swing up and down.

As a result, the beams 1 and 2 are partially raised and lowered by the vertical adjustment device installed under the bed so that the beams can be changed in contact with the patient's body. At this time, the rise and fall displacements may be appropriately set to about 1-5 cm so that the patient does not feel discomfort greatly.

The bed of the present invention uses a light aluminum channel in the upper portion and a steel channel in the lower portion and the leg portion. Aluminum and steel connections are assembled using rivets, bolts and nuts, and casters are attached to the legs to provide mobility.

In the vertical adjustment device of the present invention, a low noise DC motor is used. In this case, the ascending and descending speeds of beams installed on the bed are set at a low speed of 2 to 5 cm / min and a frequency of 0.01 to 0.1 Hz so that the patient does not feel discomfort. This frequency is the frequency of the rising and falling speed of the bed so that the most appropriate frequency may be fixed to the patient or the patient may change the desired value through the instrument panel of FIG. 9 at any time. To this end, the control system using the microprocessor 82 is configured as shown in FIG. Figure 8 is a simplified block diagram of the control system of the up and down adjustment apparatus of the present invention, the patient is a simple instrument such as the on-off switch 92 and timer 94 of the instrument panel of FIG. The device can be adjusted to adjust the frequency.), And the microprocessor 82 drives the motor 60 according to the value, and the motor moves up and down the needle beams 1 and 2. The motor output is detected by the sensor and repeats the same operation.

As mentioned above, the operation instrument panel of FIG. 9 should be easy to recognize and operate in a simple shape. The on / off switch 92, of course, is used to turn the device on or off, and the timer 94 is used to select the repetition period of the rising and falling, and if the number is moved to the larger side, it will rise and fall frequently. If it is determined that the rotary timer is more comfortable, it is manufactured as a rotary type.

As in the above-described embodiments, the bed for assisting blood circulation of the present embodiment may cover a thin mattress (not shown) on the beams, prevent the beams from coming off, and provide a cushion to some extent. Do it.

In the description of the present embodiment, the beams have been described focusing on alternately making the same shandong every other, but instead of allowing all of the beams to move up or down, only the odd or even beams are used. It can also be configured to up and down movement at regular intervals.

As described above, the bed to help the blood circulation of the present invention has an effect of assisting the blood circulation of the user by applying pressure to the user's body at regular intervals or at irregular intervals, and in order to prevent the bedsores of the critically ill patients Efforts to change the location of critically ill patients can be prevented. In addition, the control board is provided in the bed to provide a bed that helps blood circulation, which is convenient for the user to adjust the time interval.

Claims (5)

Needles having a plurality of longitudinal beams; At least one support attached to a bottom of each needle of the needle to support each beam; A lever connected to the support to transfer a vertical adjustment force to the support; And a coupling mechanism for transmitting a force to the lever by driving a motor. The bed is a power switch for the user to turn on the power; A timer for adjusting a time interval of vertical movement of the beams; And a microprocessor for controlling the driving of the motor according to the input of the timer. delete delete According to claim 1, The connecting mechanism reciprocating motion converter for converting the rotational motion of the motor into reciprocating motion; A link for transmitting a reciprocating motion from the reciprocating converter; And a wheel that connects the link and the lever and rotates while touching the ground, wherein the reciprocating transducer is a ball screw for converting the rotational movement of the motor into a reciprocating movement. The bed according to claim 1 or 4, wherein the supports are attached to the rollers one by one in the front, rear, left and right directions to prevent shaking.