KR20020012854A - Bed for preventing bedsores - Google Patents

Abstract

PURPOSE: A medical bed is provided to allow the patient to change his/her posture at the bed by raising and lowering several portions of the bed mattress in cycle through the use of a driving member. CONSTITUTION: A medical bed comprises a bed mattress including an upper bed mattress(101) and a lower bed mattress(102); an operating plate unit disposed beneath the bed mattress, and constituted by a plurality of operating plates(121,122,123,124); a support unit(130) supporting the operating plates; a driving unit interposed between the support unit and the operating plate unit, and which drives the operating plate unit; and a control unit for controlling operation of the driving unit. The operating plates are connected to each other through a hinge(125). The operating plate unit has a width same as the width of the upper mattress and lower mattress. The support unit includes first to fourth tube receiving portions(140,141,142,143) formed to correspond to operating plates. Each of operating plates has a plurality of supporting rods(131) formed along the edge of each operating plate so as to support operating plates.

Description

Medical Bed {Bed for preventing bedsores}

The present invention relates to a medical bed, and more particularly to a medical bed having a device capable of operating the mattress under the bed mattress to prevent bedsores.

Pressurized ulcers or pressure sores are symptoms of necrosis of the skin due to lack of oxygen supply to the patient's skin due to prolonged hospitalization.

However, most of the conventional hospital bed is not provided with a separate device that can prevent bedsores in addition to the function as a simple bed is a bed sore for most patients hospitalized for a long time.

The present invention has been made to solve the problems of the conventional medical bed described above, an object of the present invention is to provide a medical bed that can prevent and treat bedsores that occur in long-term treatment or nursing patients.

1 is an external perspective view of a mattress of a medical bed according to the present invention.

2 is a view showing a mattress and a device for driving the mattress provided in the first embodiment of the present invention.

3 is an exploded perspective view of the device shown in FIG. 2;

4 is a view for explaining the operation of the air tube from the tube housing shown in FIG.

5 is a view for explaining the driving of the mattress when the air tube shown in FIG.

6 is a view for explaining that the air tube is operated in another form from the tube housing shown in FIG.

7 is a view for explaining the driving of the mattress when the air tube shown in FIG.

8 is a view for explaining that the air is supplied to the air tube provided in the first embodiment of the present invention.

9 is a perspective view of a cam and a camshaft provided as drive members in a second embodiment of the present invention.

10 is a view for explaining the driving of the mattress when the cam and the camshaft shown in FIG.

Figure 11 is an exploded perspective view of the mattress and the device for driving the mattress provided in a third embodiment of the present invention.

12 is a cross-sectional view of the air cylinder shown in FIG.

13A and 13B are views for explaining the operation of the air cylinder and the operation plate shown in FIG.

14 is a view for explaining an example in which air is supplied to the air cylinder shown in FIG.

FIG. 15 is a view for explaining another example in which air is supplied to the air cylinder shown in FIG. 11; FIG.

Figure 16 is an exploded perspective view of the mattress and the device for driving the mattress provided in a fourth embodiment of the present invention.

17A and 17B are views for explaining the driving of the mattress when the operation plate member shown in Fig. 16 is operated.

<Description of the symbols for the main parts of the drawings>

100 ： Mattress 110 ： Control box

120 ： operating plate

121, 122, 123, 124: 1st, 2nd, 3rd and 4th operation plates

130: Support part

140, 141, 142, and 143: first, second, third and fourth tube storage portions

150, 151, 190 ： Air tube 170 ： Camshaft

171: cam 173, 181: support plate

180: air cylinder 182: piston

In order to achieve the above object of the present invention, according to an embodiment of the present invention, a bed mattress, an operation plate portion installed in the lower portion of the bed mattress, and composed of a plurality of operation plates, support the bottom of the operation plates The tooth bed is provided with a medical bed including a support and a driving member formed between the support and the operation plate to operate the operation plate.

In addition, the driving member is controlled by a predetermined control unit to drive the mattress.

Preferably, the actuating plates are connected to the front and rear and right and left by four plates having the same size by a hinge so that the width of the actuating plate portion is formed equal to the width of the bed mattress.

Corresponding to each of the operation plates, a plurality of support rods are further formed on an upper surface of the support portion, and the support portion is configured to support the operation plates through the support rods.

At this time, the support rods are formed along the bottom edge of each of the operation plates.

Two neighboring plates of the four working plates are paired with each other and are cyclically operated by the control means for a predetermined time. In this way, only a certain part of the body of a patient who is hospitalized for a long time is prevented from being continuously compressed, thereby preventing bedsores.

Preferably, the drive member is composed of a plurality of air tubes. In order to accommodate such air tubes, a plurality of tube accommodating members are formed on an upper surface of the support. One tube receiving member is formed to correspond to each of the operation plates at four equal positions in the front, rear, left, and right sides of the support.

A plurality of partition walls are sequentially formed in the tube accommodating member along the length direction of the bed, and the air tubes are individually accommodated in the partition walls.

Preferably, the air tubes are alternately accommodated between the partition walls when the air tube is inflated in the shape of a cuboid and the air tube is expanded in the shape of an inclined hexahedron when the air is injected.

At this time, the upper tube is inflated in the shape of the inclined hexahedral all are inflated to the same size, the air tube is expanded in the rectangular shape is arranged in the form of increasing in height.

The air tubes inflated into the rectangular parallelepiped shape by the control unit and the air tubes inflated in the oblique hexahedral shape of the upper surface may be separately injected to correspond to the operation forms of the operation plates. That is, when the operation plate rotates about the hinge, it takes a shape for supporting the downward.

The amount of air supplied to or discharged from the air tube is performed by an air valve. The air valve controls the amount of air supplied from the compressor by the control unit to operate the operation plate and the mattress. In addition, when the air tube is filled with air, the air tube is stopped by the solenoid valve to stop the air supply. The operation of the operation plate stops and the operation stops until the operation signal is issued by the control unit.

Subsequently, when a control command for operating the other driving plate is issued by the controller, the air of the air tube corresponding to the driving plates that have been raised is discharged, and then air is injected into the air tube corresponding to the predetermined other driving plate to drive the driving plate. Is raised.

In order to achieve the above objects of the present invention, according to another embodiment of the present invention, there is provided a medical bed having a plurality of cams and camshafts driven by a motor instead of the aforementioned air tube as drive members.

The camshafts are formed on the upper surface of the support part corresponding to each of the operation plates, as in the case where the above-described tube receiving member is located. A plurality of cams are formed along this camshaft.

In addition, a cam rod rotatable with respect to the cam is attached to one side of the cam and a support plate is hingedly connected to the other end of the cam rod to support the bottom of the operation plate.

In order to achieve the above object of the present invention, according to another embodiment of the present invention there is provided a medical bed having a plurality of air cylinders instead of the air tube as a drive member.

The air cylinders are formed on the upper surface of the support portion corresponding to each of the operation plates as the above-described tube receiving member is located.

The piston of the air cylinder is formed so that the air cylinder rod is extended upwards and the support plate is hinged to the end of the air cylinder rod is configured to support the bottom of the operating plate.

The air cylinder, which is the driving member, is provided with a piston that is operated by receiving air from a compressor, and the operating plate and the mattress are raised and lowered by the reciprocating motion of the piston.

Further, the air amount adjustment supplied to or discharged from the air cylinder is performed by an air valve. The air valve controls the amount of air supplied from the compressor by a control unit to operate the operation plate and the mattress. When the air tube is full of air, the air cylinder is stopped by the solenoid valve, the operation of the operation plate is stopped, and the operation stop state is continued until another operation signal is issued by the control unit.

Subsequently, when a control command for operating the other drive plate is issued by the controller, air in the air cylinder corresponding to the driven drive plates is discharged, and then air is injected into the air cylinder corresponding to the predetermined other drive plate to drive the drive plate. Is raised.

In order to achieve the above object of the present invention, according to another embodiment of the present invention is provided a bed mattress, the operation plate which is provided below each of the bed mattress, each one formed on both sides of the line of symmetry in the longitudinal direction of the bed A medical bed including an operation plate part connected to each other, a support part supporting the bottom edges of the operation plates, a driving member formed between the support part and the operation plate part to operate the operation plate part, and a control unit for controlling the driving member. Is provided.

Preferably, the drive member is formed with an air tube that expands in a cylindrical shape along the longitudinal direction of the actuation plate during air injection. The working plate is operated by an air tube that expands in this cylindrical shape.

In order to accommodate the cylindrical air tube, one tube receiving member having an upper portion opened on the upper surface of the support part is formed on each side of the bed along the length direction of each bed.

The air tube is expanded in the shape of a cylinder is formed so that a plurality of tubes are adjacent to each other, and when air is injected, is formed to expand in the form of sequentially rising outward with respect to the symmetry line in the longitudinal direction of the bed.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the mattress and the driving device for operating the mattress provided in the medical bed according to the preferred embodiments of the present invention.

Example 1

1 is an external perspective view of a mattress of a medical bed according to the present invention, Figure 2 is a view showing a device for driving the mattress and the mattress according to the first embodiment of the present invention, Figure 3 is a device shown in Figure 2 Is an exploded perspective view of the.

Referring to Figure 1, the mattress 100 and the lower portion of the mattress 100, a predetermined device (not shown) for driving various parts of the mattress 100 is installed, such a device and the mattress 100 at the same time A covering cover 103 is provided.

The cover 103 is wrinkled along the circumference of the portion of the mattress 100 is raised by a predetermined device for driving the mattress 100.

1 to 3, the driving member installed under the mattress 100 is controlled by the control box 110 installed in close proximity to the mattress 100. The control box 110 includes a time display window 111 for displaying a driving time of the driving member, an operation display window 112 for displaying various operation states of the driving member, a power button 115 for turning on the driving member, and a driving member. An operation button 113 for operating and a stop button 114 for pausing the driving member are provided.

As shown in FIG. 3, the mattress 100 is composed of an upper mattress 101 and a lower mattress 102. The upper mattress 101 is formed of a sponge material with a cushion, and the lower mattress 102 is formed of a material such as rubber. The upper and lower mattresses 101 and 102 are preferably made thin so as not to burden the patient when the operation plates 121, 122, 123, and 124 are operated up and down.

Below the lower mattress 102, four operating plates 121, 122, 123, and 124 are hinged 125 to each other to correspond to positions in which the bottom surface of the lower mattress 102 is divided into four equal parts in the longitudinal and horizontal directions. 120 (see FIG. 2). The operation plate 120 is preferably formed to have the same width as the upper mattress 101 and the lower mattress 102 of the upper portion.

A plate-shaped support portion 130 is formed below the first to fourth operation plates 121, 122, 123, and 124, and the first to fourth operation plates 121, 122, 123 are formed on an upper surface of the support portion 130. 124, first to fourth tube accommodating parts 140, 141, 142, and 143 are formed.

A plurality of support rods 131 are formed at the edges of the first to fourth tube accommodating parts 140, 141, 142, and 143 to form the first to fourth operating plates 121, 122, 123, and 124 thereon. Will hold up. In this case, although not shown, grooves may be formed in the bottom of the first to fourth operating plates 121, 122, 123, and 124 corresponding to each of the support rods 131 to accommodate the upper portion of the support rod 131. do.

The stacked state from the upper mattress 101 to the support 130 is as shown in FIG. 2.

Referring back to FIG. 3, upper portions of the first to fourth tube accommodating parts 140, 141, 142, and 143 are open and the inside thereof is separated by a partition wall along the length direction. The air tube 150 (refer to FIG. 4) is formed in each of the tube receiving grooves 145 formed by being separated by the partition wall.

4 is a view for explaining the operation of the air tube from the tube housing shown in Figure 3, Figure 5 is a view for explaining the operation of the mattress when the air tube shown in Figure 4 operates.

In FIGS. 4 and 5, only the second tube accommodating part 141 is described for convenience of description, but the air tubes are respectively accommodated in the first to fourth tube accommodating parts 140, 141, 142, and 143.

As shown in FIG. 4, preferably, the air tube 150 is expanded in a rectangular parallelepiped shape when air is injected and is installed while skipping by one space in the plurality of tube receiving grooves 145. The plurality of air tubes 150 are arranged along the length of the second tube accommodating part 141 in such a manner that their height is increased. Although not shown in FIG. 4, the tube receiving grooves 145 between the air tubes 150 that are expanded in a rectangular parallelepiped shape contain upper air inclined air tubes 151 as shown in FIG. 6. The air tubes 150 shown in FIG. 4 and the air tubes 151 shown in FIG. 6 may adjust the shape in which air is injected separately and the operation plates to be mounted on the upper portion thereof are raised around the hinge 125. have.

As described above, air tubes 150 and 151 are disposed in the tube receiving grooves 145 of the first to fourth tube receiving parts 140, 141, 142 and 143 as described above.

When air is injected into the rectangular tube-shaped air tube 150 among the air tubes installed in the second tube accommodating part 141 and the fourth tube accommodating part 143, as shown in FIG. 4, as shown in FIG. 5. Likewise, the second actuation plate (not shown) and the fourth actuation plate 124 are pushed up while rotating about the hinge 125. Accordingly, portions of the upper mattress 101 (see FIG. 3) and the lower mattress 102 (see FIG. 3) formed above the second and fourth operating plates may be raised to change the posture of the patient lying in the bed. have.

In order to naturally change the posture of the patient, it is preferable that two adjacent operating plates, which are not diagonal, among the first to fourth operating plates 121, 122, 123, and 124 are paired and operated simultaneously. Accordingly, an air tube having a shape corresponding to raising and lowering paired operation plates among the air tubes 150 and 151 installed in the four tube receiving portions 140, 141, 142, 143 and FIG. 3 is expanded or Adjusted to contract.

FIG. 6 is a view for explaining that the air tube is operated in a different form from those of FIGS. 3 and 4 from the tube accommodating part shown in FIG. 3, and FIG. 7 is a view of the mattress when the air tube shown in FIG. It is a figure for demonstrating drive.

Referring to FIG. 6, air tubes 151 having the same size and shape and inclined at the top thereof are accommodated in the first tube accommodating part 140 and expanded to a rectangular parallelepiped shape when air is injected. It is skipped and installed. At this time, it is installed in the tube receiving groove 145 alternately with the air tube 150 of the rectangular parallelepiped shape shown in FIG.

Among the air tubes housed in the first tube receiver 140 and the second tube receiver 141 (see FIG. 3), the upper surface as shown in FIG. 6 is expanded to an inclined shape. When air is injected, as shown in FIG. 7, the first operating plate 121 and the second operating plate (not shown) are rotated about the hinge 125 and pushed up. As a result, the upper mattress and a portion of the lower mattress are raised to change the position of the patient lying in the bed.

8 is a view for explaining that the air is supplied to the air tube provided in the first embodiment of the present invention.

Referring to FIG. 8, the compressed air from the compressor 155 passes through the first solenoid valve 157 through the first air valve 156 which is capable of adjusting the air flow rate and thereby adjusting the rising speed of the operation plate. After coarse cuboid-shaped air tubes 150 or the top surface is supplied to the inclined hexahedral-shaped air tubes. When the air is filled in the air tube 150, the first solenoid valve 157 is closed and the corresponding operation plate stops the lifting operation. The operation stop state lasts until another control command signal is issued by the control unit. The control command signal is preferably set within 2 hours.

Subsequently, when a control command signal for blowing the air to lower the operation plate is automatically generated from the control unit, the air in the air tube 150 passes through the second solenoid valve 158 and the second air valve 159 to the silencer 160. Is discharged out.

The second air valve 159 may adjust the descending speed of the operation plate by adjusting the discharge flow rate of the air so that the operation plate and the mattress are returned to their positions without burdening the patient. The control command of the control unit is automatically issued and the air tube can prevent the bedsores by constantly changing the patient's posture by periodically raising and lowering the various parts of the mattress by repeating the above process.

As described above, the air tube 150 is paired with two adjacent tube housings to operate the air tubes stored therein, and the air tubes of the same shape among the tubes operate simultaneously. Two adjacent working plates are allowed to rise simultaneously.

Example 2

FIG. 9 is a perspective view of a cam and a camshaft provided as a driving member in the second embodiment of the present invention. FIG. 10 is a view for explaining the driving of the mattress when the cam and the camshaft shown in FIG. 9 operate.

In the present embodiment, the same reference numerals are used for the same parts as in the above-described first embodiment.

9 and 10, a cam 171 and a camshaft 170 are provided as a member for driving the operation plate. The camshaft 170 includes the first to fourth tube accommodating portions 140 shown in FIG. 3. One at each of the positions 141, 142, 143 is provided. Although not shown, the camshaft 170 is driven by a motor, and both ends of the camshaft are supported by the camshaft support 174.

Cam 171 may be provided with a plurality along the cam shaft 170, Figure 9 shows a state provided with two. The cam rod 172 is attached to one side of the cam 171, and the support plate 173 is hingedly connected to the other end of the cam rod 172.

FIG. 10 illustrates a state in which the operation plate is raised when the cam and the camshaft installed at the bottom of the third operation plate 123 (see FIG. 3) and the fourth operation plate 124 (see FIG. 3) are simultaneously driven. . That is, the cam rod 172 is pushed up by the rotation of the cam 171, and then the support plate 173 raises the third operation plate 123 and the fourth operation plate. In this case, the ascending operation is possible by the rotational control of the motor, but it is desirable to ascend very slowly in consideration of the condition of the patient.

Example 3

FIG. 11 is an exploded perspective view of a mattress and a device for driving the mattress according to the third embodiment of the present invention, and FIG. 12 is a cross-sectional view of the air cylinder shown in FIG.

As in the case of Embodiments 1 and 2 described above, the same reference numerals are used for the same parts in the present embodiment.

11 and 12, an air cylinder 180 is provided as a driving member for driving the operating plates 121, 122, 123, and 124, which is operated during the upper surface of the support 130. One corresponding to the plates 121, 122, 123, 124 is provided at the lower portion thereof, respectively. Although not shown, the air cylinder 180 is operated by receiving air from the compressor as in the case of the first embodiment.

A piston 182 is provided inside the air cylinder 180, an air cylinder rod 183 is attached above the piston 182, and a support plate 181 supporting the operation plate at the other end of the air cylinder rod 183. This hinge 184 is connected. When air is injected into the air cylinder 180, the piston 182 is pushed up to operate the operation plate located above the support plate 181.

13A and 13B are views for explaining the operation of the air cylinder and the operation plate shown in FIG.

Referring to FIG. 13A, when the air cylinder 180 installed below the third operating plate 123 and the fourth operating plate 124 (see FIG. 11) is simultaneously driven, the operating plate is raised. have. That is, the support plate 181 raises the third operation plate 123 and the fourth operation plate 124 by the rise of the air cylinder rod 183.

The operation plate raised as described above is maintained in an elevated state until air below the piston 182 (see FIG. 12) in the air cylinder 180 is discharged by the air discharge command signal of the controller. As shown in FIG. 13B, the working plates remain flat when air is discharged.

FIG. 14 is a diagram for describing an example in which air is supplied to the air cylinder illustrated in FIG. 11, and FIG. 15 is a diagram for describing another example in which air is supplied to the air cylinder illustrated in FIG. 11.

Referring to FIG. 14, the air compressed by the compressor 155 by the control command of the control box 110 is injected into the air cylinder through the first air valve 156 and the first solenoid valve 200. At this time, the valve 201 in the first solenoid valve 200 leading to the space provided above the piston 182 is closed and the valve 202 leading to the space provided below the piston 182 is opened to push the piston 182. Up.

The first air valve 156 controls the ascending speed of the corresponding operation plate by adjusting the amount of compressed air, and the piston 182 pushed upwards as much as possible to close the valve 202 in the first solenoid valve 200. The raised state is maintained as it is.

The raised piston 182 is lowered by the air discharge command signal of the control box 110, which is a control unit. At this time, the valve 201 in the first solenoid valve 200 is opened and the other valve 202 is closed. Thus, the compressed air from the compressor 155 is injected into the space provided above the piston 182 so that the piston 182 is lowered. One valve 206 in the second solenoid valve 205 is opened and the other valve 207 is closed to smoothly discharge the air through the second air valve 159 and the silencer 160.

Referring to FIG. 15, each of the first and second solenoid valves 210 and 215 is provided with one valve so that air is injected and discharged into a space provided under the piston 182 of the air cylinder. The other method of operating the first and second air valves 156 and 159 and the silencer 160 is the same as that shown in FIG.

Example 4

16 is an exploded perspective view of the mattress and the apparatus for driving the mattress according to the fourth embodiment of the present invention, and FIGS. 17A and 17B are views for explaining the driving of the mattress when the operation plate member shown in FIG. 16 is operated. to be.

Referring to FIG. 16, the first and second actuating plates 195, 196 are hinged 197 below the upper and lower mattresses 101, 102. These first and second actuating plates 195 and 196 are each formed on each side about a symmetry line in the longitudinal direction of the bed.

A support 130 is formed below the first and second actuation plates 195 and 196, and the first and second tubes are disposed on the upper surface of the support 130 to correspond to the first and second actuation plates 195 and 196. The receiving parts 191 and 192 are formed. In addition, support rods 193 are formed along edges of the first and second tube accommodating parts 191 and 192 to support the bottom surfaces of the first and second operation plates 195 and 196. In this case, although not shown, grooves for accommodating an upper portion of the support rod 193 are formed in the bottoms of the first and second actuating plates 195 and 196 corresponding to the support rods 193, respectively.

The first and second tube accommodating parts 191 and 192 have a structure in which an upper portion thereof is opened, and a plurality of cylindrical air tubes 190 are accommodated in an inner space thereof in a longitudinal direction. The air tubes 190 shown in FIG. 16 illustrate a state in which air is injected, that is, a state in which the air tube 190 is inflated.

Preferably, the air tubes 190 stored in the first tube accommodating part 191 and the second tube accommodating part 192 are alternately expanded and contracted. Accordingly, the first and second operating plates 195 and 196 are alternately raised and lowered, and the upper and lower mattresses 101 and 102 are also alternately raised and lowered about the longitudinal symmetry line. Will descend.

Referring to FIG. 17A, the first actuating plate 195 is pushed up as the air tube 190 formed below it is expanded. At this time, the respective air tubes 190 are different in height when they are inflated to the maximum. That is, the air tubes 190 may be disposed so that their height increases in steps as they go outwards, thereby smoothly raising the first and second operating plates 195 and 196.

FIG. 17B shows a state in which the first actuating plate 195 shown in FIG. 17A is lowered into place. Although not shown, the lifting and lowering operation may be performed in the same form as the first operating plate 195 by the air tube 190 disposed below the second operating plate 196. Patients undergoing long-term inpatient treatment, such as lying on the bed continuously changes, so that the pressure parts of the body are not concentrated in one place, thereby reducing the burden and preventing bedsores.

As described above, by changing the posture of the patient to lie on the bed for a long time through the drive member for cyclically operating the various parts of the mattress of the medical bed according to the constant cycle bedsores that occur in such patients Can be prevented. In addition, since the driving member can be easily operated, the burden on those who care for the patient can be much lessened.

Although the above has been described and illustrated for the medical bed according to the preferred embodiments of the present invention, the present invention is not limited to the above-described embodiments and without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in this field can understand that various changes are made.

Claims (31)

Bed Mattress; An operation plate unit disposed below the bed mattress and configured of a plurality of operation plates; A support for supporting the bottoms of the operation plates; And And a driving means formed between the support part and the operation plate part to operate the operation plate part. The method of claim 1, Medical bed further comprising a control means for controlling the drive means. The method of claim 2, The operation bed is a medical bed, characterized in that interconnected by a hinge formed on each side. The method of claim 3, wherein Medical bed, characterized in that the width of the operation plate portion is formed equal to the width of the bed mattress. The method of claim 4, wherein And a plurality of support rods formed on an upper surface of the support portion corresponding to each of the operation plates, wherein the support portion supports the operation plates through the support rods. The method of claim 5, And the support rods are formed corresponding to the bottom edge of each of the operation plates. The method of claim 6, The operation plate part is a medical bed, characterized in that the four plates of the same size are formed by connecting back and forth and left and right. The method of claim 7, wherein Two adjacent plates each of the four operating plates are paired and operated by the control means cyclically for a predetermined time. The method of claim 8, The drive means is a medical bed, characterized in that a plurality of air tubes. The method of claim 9, Medical bed, characterized in that the upper tube opening member is formed on the upper surface of the support for receiving the air tube is formed. The method of claim 10, And one tube accommodating member corresponding to each of the operation plates at four equal positions in front, rear, left, and right sides of the support. The method of claim 11, The inside of the tube accommodating member is a medical bed characterized in that a plurality of partitions are sequentially formed along the longitudinal direction of the bed, the air tubes are individually stored in each of the partitions. The method of claim 11, The air tube is a medical bed, characterized in that the air tube is inflated in the shape of a cuboid when injecting the air and the air tube is expanded between the inclined hexahedral shape is alternately accommodated between the partitions. The method of claim 13, Medical beds characterized in that the tube is expanded in the same size inclined hexahedron all the same size. The method of claim 13, The air tube is expanded in the rectangular parallelepiped medical bed, characterized in that arranged in such a way that the height increases. The method of claim 13, Medical bed, characterized in that the air tube is inflated in the rectangular shape by the control means and the air tube is expanded in the hexahedral shape in which the upper surface is inclined separately. The method of claim 16, And an air valve for adjusting the amount of air supplied to or discharged from the air tube, wherein the air valve is controlled by the control means. The method of claim 8, The driving means is a medical bed, characterized in that the cam shaft and a plurality of cam driven by the motor. The method of claim 18, The camshaft is a medical bed, characterized in that formed on the upper surface of the support portion corresponding to each of the operation plate and a plurality of cams are formed along the camshaft. The method of claim 19, Medical bed characterized in that the cam rod rotatable with respect to the cam is formed on one side of the cam. The method of claim 20, Medical bed, characterized in that the support plate is hinged to the other end of the cam rod to support the bottom of the operation plate. The method of claim 8, The driving means is a medical bed, characterized in that a plurality of air cylinders. The method of claim 22, The air cylinder is formed on the upper surface of the support portion corresponding to each of the operating plate. The method of claim 23, A medical bed, characterized in that the air cylinder rod is extended upward to the piston of the air cylinder. The method of claim 24, And a support plate hinged to an end of the air cylinder rod to support the bottom surface of the operation plate. The method of claim 25, And an air valve for adjusting the amount of air supplied to or discharged from the air cylinder, wherein the air valve is controlled by the control means. The method of claim 6, The operation bed is a medical bed, characterized in that each one formed on each side of the longitudinal symmetry line of the bed. The method of claim 27, Medical bed, characterized in that the operation plate is operated by the air tube is expanded in the cylindrical shape is formed in the cylinder shape in the longitudinal direction during the air injection of the operating plate. The method of claim 28, The medical bed, characterized in that the tube receiving member is formed on the upper surface of the support for opening the cylindrical air tube is formed on the upper surface. The method of claim 29, The air tube is expanded in the shape of a cylinder is a medical bed, characterized in that a plurality of tubes are formed adjacent to each other when the height is different. The method of claim 30, The cylindrical air tube is a medical bed, characterized in that arranged in the form of sequentially rising outward with respect to the longitudinal line of symmetry of the bed.