JP2018015205A - Mattress device and body position change support unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress device and body position change support unit capable of changing a body position of a user.SOLUTION: A mattress device 1 includes: a mat 10; a head side center cell 21 arranged at the head side center of the mat 10; a left shoulder blade cell 22 arranged on a left side of the head side center cell 21 in the mat 10; a right shoulder blade cell 23 arranged on a right side of the head side center cell 21 in the mat 10; a foot side center cell 24 arranged at a foot side center of the mat 10; a left thigh cell 25 arranged on a left side of the foot side center cell 24 in the mat 10; a right thigh cell 26 arranged on a right side of the foot side center cell 24 in the mat 10; and a control section 30 for mutually and independently supplying a fluid to the head side center cell 21, the left shoulder blade cell 22, the right shoulder blade cell 23, the foot side center cell 24, the left thigh cell 25, and the right thigh cell 26.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mattress device having a posture change function and a posture change support unit.

  In recent years, with the aging of society, the importance of home care has increased. In home care, a person who is not necessarily a care specialist such as a patient's family often provides care, and it is a social need to reduce the burden on the caregiver. In particular, in order to prevent pressure sores (bed sores) and to support ADL (Activities of Daily Living), it is necessary to change the position of the patient regularly. It is a big burden.

Japanese Patent Laying-Open No. 2006-016151

  An object of the present invention is to provide a mattress device and a posture change support unit that can change the posture of a user.

  A mattress device according to the present invention includes a mat, a first fluid cell disposed in a central portion on the head side of the mat, and a second fluid cell disposed on one of the left and right sides of the first fluid cell in the mat. , A third fluid cell disposed in the center part on the foot side of the mat, a fourth fluid cell disposed on the one side of the third fluid cell in the mat, the first fluid cell, and the second fluid. A control unit capable of supplying fluid to the cell, the third fluid cell, and the fourth fluid cell independently of each other.

  The postural change support unit according to the present invention includes a support sheet disposed on or under the mat, a first fluid cell disposed in a central portion on the head side of the support sheet, and the first fluid cell in the support sheet. 2nd fluid cell arrange | positioned at one side of right and left of this, 3rd fluid cell arrange | positioned in the foot side center part of the said support sheet, It arrange | positioned at the said one side of the said 3rd fluid cell in the said support sheet A fourth fluid cell; and a control unit capable of supplying fluid to the first fluid cell, the second fluid cell, the third fluid cell, and the fourth fluid cell independently of each other.

  ADVANTAGE OF THE INVENTION According to this invention, the mattress apparatus which can change a user's posture, and a posture change assistance unit are realizable.

It is a perspective view showing the mattress device concerning a 1st embodiment. It is a perspective view which shows arrangement | positioning of the air cell in 1st Embodiment. BRIEF DESCRIPTION OF THE DRAWINGS (a)-(c) is a figure which shows the air cell of 1st Embodiment, (a) is a perspective view which shows a double-sided gusset type air cell with (a). (C) is a perspective view showing a one-side gusseted air cell. It is a figure which shows the positional relationship of a left end part cell and a user. It is a front view which shows the remote control in 1st Embodiment. (A)-(c) is a front view which shows a lateral position conversion operation | movement. It is a timing chart which shows the supply operation | movement of the air with respect to the left scapula cell and the left thigh cell in a lateral recumbent position conversion operation, taking time on the horizontal axis and taking the state of the solenoid valve leading to the air cell on the vertical axis. It is a perspective view which shows a side position conversion operation | movement. It is a figure which shows automatic side position conversion operation | movement. (A) And (b) is a perspective view which shows the conversion operation | movement from a side position position to an end sitting position. It is a side view which shows the operation | movement which moves a user to a longitudinal direction. It is a side view which shows the operation | movement which prevents a user's slipping down at the time of raising the back of a bed. It is a perspective view showing trunk maintenance operation. (A)-(c) is a figure which shows a bed leaving assistance operation | movement, and is the figure which looked at the user from back. (A)-(c) is a figure which shows a bed leaving assistance operation | movement, and is the figure which looked at the user from the side. It is a timing chart which shows the supply operation | movement of the air with respect to two left end cells in a bed leaving support operation, taking time on the horizontal axis and taking the state of the solenoid valve leading to the air cell on the vertical axis. It is a perspective view which shows the mattress apparatus which concerns on 2nd Embodiment. It is a perspective view which shows the postural change assistance unit which concerns on 3rd Embodiment.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the first embodiment will be described.
FIG. 1 is a perspective view showing a mattress device according to the present embodiment.
FIG. 2 is a perspective view showing the arrangement of the air cells in the present embodiment.
3A to 3C are views showing the air cell of this embodiment, FIG. 3A is a perspective view showing a double-sided gusset type air cell, and FIG. It is sectional drawing which shows an air cell, (c) is a perspective view which shows a one-sided gusset type air cell.
FIG. 4 is a diagram illustrating a positional relationship between the left end cell and the user.
FIG. 5 is a front view showing the remote controller in the present embodiment.

  As shown in FIG. 1, in the mattress device 1 according to the present embodiment, the mat 10, for example, twelve air cells 20 provided in the mat 10, air is supplied to the air cell 20 and air is supplied from the air cell 20. A control unit 30 for discharging is provided. The mat 10 is placed on a bed 100 (see FIG. 13) capable of raising the back, and a user P (see FIG. 13) such as a patient sleeps on the mat 10.

  The control unit 30 is provided with a main body 31, twelve air tubes 32 and a remote controller 33. In the main body 31, a housing 34 is provided, and a pump (not shown), a solenoid valve (not shown), a control board (not shown), and the like are accommodated in the housing 34. . The pump supplies air to the air cell 20 and discharges air from the air cell 20. The air tube 32 is connected between the pump and each air cell 20 and circulates air. The solenoid valve opens and closes each air tube 32. For example, the air path is closed when the solenoid valve is off, and the air path is opened when the solenoid valve is on. The control board controls the operation of the solenoid valve.

  The remote controller 33 is pulled out from the main body 31 by a cable 35. Note that an operation panel may be attached to the housing 34 instead of the remote controller 33. A hook 36 is attached to the top of the housing 34. The main body 31 can be attached to the bed 100 by hooking the hook 36 on the board 101 (see FIG. 13) of the bed 100.

  Hereinafter, in this specification, when the user lies on the mat 10 in the supine position, that is, the side on which the user's head is placed on the mat 10 is referred to as “head side”, and the foot portion. The side on which the left hand is disposed is referred to as “foot side”, the side on which the left hand is disposed is referred to as “left side”, and the side on which the right hand is disposed is referred to as “right side”. The direction from the head side to the foot side is called “longitudinal direction”, and the direction from the left side to the right side is called “width direction”.

  In the mat 10, a bottom layer 11 and a top layer 12 are provided. On the upper surface of the bottom layer 11, a recess (not shown) for accommodating the air cell 20 is formed. The depth of the recess is such a depth that the upper surface of the air cell 20 and the upper surface of the bottom layer 11 form substantially the same plane in a state where the air cell 20 is exhausted. A groove (not shown) for disposing the air tube 32 is also formed on the upper surface of the bottom layer 11.

  The top layer 12 is disposed on the bottom layer 11, the air cell 20, and the tube 32. That is, the air cell 20 is sandwiched between the bottom layer 11 and the top layer 12. The top layer 12 has a plate shape and a substantially uniform thickness. The bottom layer 11 and the top layer 12 are made of a flexible material. Further, the mat 10 is provided with a bottom layer 11, the air cell 20, a portion of the tube 32 arranged in the mat 10, and a highly flexible cover (not shown) that integrally wraps the top layer 12. .

  As shown in FIG. 2, the air cell 20 includes a head side central cell 21, a left scapula cell 22, a right scapula cell 23, a foot side center cell 24, a left thigh cell 25, a right thigh cell 26, an upper body left cell 27L, There is an upper right cell 27R, left end cells 28A and 28B, and right end cells 29A and 29B. The name “air cell 20” is a general term for these twelve cells 21 to 29B. The control unit 30 includes a head side center cell 21, a left scapula cell 22, a right scapula cell 23, a foot side center cell 24, a left thigh cell 25, a right thigh cell 26, an upper body left cell 27L, and an upper body right cell 27R. Air can be supplied to and discharged from the left end cell 28A, the left end cell 28B, the right end cell 29A, and the right end cell 29B independently of each other.

  The head-side center cell 21 is provided on the head side in the mat 10 and at the center in the width direction. The cranial center cell 21 is disposed so as to be located in the region immediately below the scapula on both the left and right sides when the user lies on the center in the width direction of the mat 10. The left scapula cell 22 is arranged on the left side of the cranial center cell 21. However, the right side portion of the left scapula cell 22 is superimposed on the left side portion of the cranial center cell 21. The right scapula cell 23 is arranged on the right side of the cranial center cell 21. However, the left side portion of the right scapula cell 23 is superimposed on the right side portion of the cranial center cell 21. With respect to the center line C extending in the longitudinal direction of the mat 10, the left scapula cell 22 and the right scapula cell 23 are symmetric and are separated from each other. The left scapula cell 22 and the right scapula cell 23 are arranged so as to be positioned in a region immediately below the left scapula and a region immediately below the right scapula, respectively, when the user supines on the mat 10.

  The foot side center cell 24 is provided on the foot side of the mat 10 and at the center in the width direction. The foot-side center cell 24 is disposed so as to be positioned in the region directly below the left and right thighs when the user lies on the center in the width direction of the mat 10. The left thigh cell 25 is disposed on the left side of the foot side central cell 24. However, the right side portion of the left thigh cell 25 is overlaid on the left side portion of the foot side central cell 24. The right thigh cell 26 is disposed on the right side of the foot side central cell 24. However, the left side portion of the right thigh cell 26 is overlaid on the right side portion of the foot side central cell 24. With respect to the center line C, the left thigh cell 25 and the right thigh cell 26 are symmetric and spaced apart from each other. The left thigh cell 25 and the right thigh cell 26 are arranged so as to be positioned in a region immediately below the left thigh and a region directly below the right thigh when the user lies on the mat 10, respectively.

  The upper body left cell 27L is disposed on the left side and the foot side of the left scapula cell 22. However, the right side portion on the head side of the upper body left cell 27 </ b> L overlaps the left foot side portion of the left scapula cell 22. The upper body right cell 27R is disposed on the right side and the foot side of the right scapula cell 23. However, the left side portion on the head side of the upper body right cell 27 </ b> R is overlapped under the right foot side portion of the right scapula cell 23. The upper body left cell 27L and the upper body right cell 27R are symmetrical with respect to the center line C and are separated from each other. Upper body left cell 27L and upper body right cell 27R are arranged so as to be positioned outside the left and right upper arms when the user lies on the mat 10.

  The left end cells 28A and 28B are arranged along the longitudinal direction of the mat 10 at the left end of the mat 10 and are separated from each other. The left end cell 28B is disposed closer to the foot than the left end cell 28A. The right end cells 29A and 29B are arranged along the longitudinal direction of the mat 10 at the right end of the mat 10 and are separated from each other. The right end cell 29B is disposed closer to the foot than the right end cell 29A.

As shown in FIGS. 3A to 3C, there are a plurality of types of air cell shapes.
As shown in FIG. 3A, a double-sided gusset type air cell 20a is used for the head side central cell 21, the foot side central cell 24, the upper body left cell 27L, and the upper body right cell 27R. In the double gusseted air cell 20a, gussets 20e are provided on both sides of the main body 20d. When air is injected into the double gusseted air cell 20a and swells, it becomes a rounded rectangular parallelepiped shape.

  As shown in FIG. 3 (b), the left scapula cell 22, the right scapula cell 23, the left thigh cell 25, and the right thigh cell 26 use a two-stage gusseted air cell 20b. In the two-stage air cell 20b with gussets on both sides, a lower subcell 20f and an upper subcell 20g are provided. The upper subcell 20g is overlaid on the lower subcell 20f, and gussets 20e on one side are joined together. Also, a hole 20h for air to flow is formed between the lower subcell 20f and the upper subcell 20g. As a result, when air is injected into the two-stage air cell 20b with gussets on both sides, the unjoined side swells greatly to form a round fan shape.

  As shown in FIG. 3 (c), the left end cells 28A and 28B and the right end cells 29A and 29B are one-side gusseted air cells 20c. In the one-side gusseted air cell 20c, the gusset 20e is provided only on one side of the main body 20d. As a result, when air is injected into the one-side gusseted air cell 20c, the side where the gusset 20e is not provided swells greatly, resulting in a rounded triangular prism shape. For this reason, the part by the side of the center part of the mat | matte 10 in the air cell 20c becomes higher than the part by the side of an edge part.

  As shown in FIG. 4, when air is injected into the left end cells 28A and 28B, the distance D1 between the apex 28Ap of the left end cell 28A and the apex 28Bp of the left end cell 28B is It is longer than the distance D2 between the vertices Pp. That is, D1> D2. On the other hand, the distance D3 between the left end cell 28A and the left end cell 28B is shorter than the width D4 of the user's buttocks. That is, D3 <D4.

  As shown in FIG. 5, for example, eight operation buttons are provided on the front surface of the remote controller 33 of the control unit 30. The operation button 33a (leftward) is a button that is pressed when the posture of the user who is sleeping on his / her back is converted into a leftward-facing position. The operation button 33b (toward the right) is a button to be pressed when the user is in the supine position and converted into the right-side position. The operation button 33c (holding posture) is a button that is pressed when the user's trunk is held when the bed is raised up. The operation button 33d (rise) is a button that is pressed when the user sitting on the end of the bed is supported to start up. The operation button 33e (exhaust) is a button to be pressed when exhausting from the air cell. The operation button 33f (stop) is a button that is pressed to stop the operation. The operation button 33g (power supply) is a button that is pressed when the control unit 30 is powered on to enable the operation, and when the power is cut off to disable the operation. The operation button 33h (automatic) is a button that is pressed when the posture change is automatically performed according to a preset program. These operations will be described later.

  Next, the operation of the mattress device according to this embodiment will be described.

<Side position conversion>
First, the lateral position conversion operation will be described.
FIGS. 6A to 6C are front views showing the lateral position conversion operation.
FIG. 7 is a timing chart showing the air supply operation to the left scapula cell and the left thigh cell in the lateral recumbent position conversion operation with time on the horizontal axis and the state of the electromagnetic valve leading to the air cell on the vertical axis.
FIG. 8 is a perspective view showing the lateral position conversion operation.
In FIGS. 6A to 6C, the top layer 12 (see FIG. 1) and the cover are not shown.

  As shown in FIG. 6A, when the operation button 33g (power supply) of the remote controller 33 is pressed to turn on the power to the control unit 30, the operation of all the operation buttons of the remote controller 33 becomes valid. Further, a small amount of air is supplied to the head-side central cell 21, and the other air cells 20 are in an exhausted state. At this time, the upper surface of the mat 10 is substantially flat. The purpose of supplying a small amount of air to the head-side central cell 21 is to improve the sleeping comfort of the user P. This state is the initial state.

In the initial state, the user P lies on the center of the mat 10 in the width direction. From this state, the posture of the user P is converted into the right-side position.
First, as shown in FIGS. 1 and 5, the caregiver presses the operation button 33 b (rightward) of the remote controller 33. As a result, as shown in FIGS. 2, 6 (b), and 7, the pump of the control unit 30 is activated, and air is supplied to the cranial central cell 21 and the left scapula cell 22 via the air tube 32. Initially, these cells begin to swell. Then, after a certain time Δt has elapsed, air starts to be supplied from the control unit 30 to the foot side central cell 24 and the left thigh cell 25 via the air tube 32, and these cells start to swell. The time Δt is, for example, 15 seconds. However, the optimum value of the time Δt varies depending on the capacity of the pump and the weight of the user P. Thus, the control unit 30 can realize a state in which air is supplied to all of the head side central cell 21, the left scapula cell 22, the foot side central cell 24, and the left thigh cell 25. The supply of air to the cranial center cell 21 may be started after the supply of air to the left scapula cell 22 is completed. Similarly, after the supply of air to the left thigh cell 25 is completed, the supply of air to the foot side central cell 24 may be started.

  As a result, as shown in FIGS. 6B and 8, the expanding air cell 20 pushes up the left scapula and left thigh of the user P through the top layer 12, and the body of the user P is Lean on. At this time, the left scapula cell 22 expands, the cranial center cell 21 expands, the left thigh cell 25 expands and the foot side center cell 24 expands, and the left scapula cell 22 and the left thigh cell 25 Since it is a stepped cell, the body of the user P is tilted to the right more than usual. Further, as shown in FIG. 7, the left scapula of the user P is pushed up first, and after the user's eyes turn to the right, the left thigh is pushed up. Thereby, a user's discomfort can be reduced and safety can be ensured.

  Then, as shown in FIG. 5, when the caregiver presses the operation button 33f (stop) of the remote controller 33, or the head side central cell 21, the left scapula cell 22, the foot side central cell 24 and the left thigh cell 25 are When inflated to a predetermined size, the control unit 30 stops supplying air to these cells. As a result, as shown in FIG. 8, the posture of the user P is in the lateral position facing the right side.

  Thus, by changing the posture of the user P from the supine position to the lateral position, the occurrence of pressure sores can be prevented. Moreover, since the buttocks float when the left scapula and the left thigh are lifted, the caregiver can easily access the buttocks of the user P. As a result, operations such as changing diapers are facilitated.

  Thereafter, as shown in FIG. 5, when the caregiver presses the operation button 33e (exhaust) of the remote controller 33, the pump of the control unit 30 is activated and air is discharged from the left scapula cell 22 and the left thigh cell 25. . Thereby, these cells contract and the inclination angle of the user P decreases. And if a caregiver presses the operation button 33f (stop), exhaust will stop and it will be fixed with the inclination angle at that time. If the caregiver does not press the operation button 33f (stop), the upper surface of the mat 10 returns to the horizontal.

Thereafter, when the caregiver presses the operation button 33g (power supply) of the remote controller 33 to cut off the power supply of the control unit 30, the solenoid valve is closed and the pump is stopped, and the air injected into each air cell 20 is sealed as it is. The Thereby, the state of each air cell 20 is fixed. When the power supply of the control unit 30 is cut off, the operation buttons other than the operation button 33g (power supply) are disabled.
In the above description, an example has been described in which the body position is set to the right-side position. However, the same applies to the case where the position is set to the left-side position.

  In the above-described operation, the left scapula cell 22 contacts the left scapula of the user P, and the left thigh cell 25 contacts the left thigh of the user P. Since the scapula and the thigh are hard portions without joints, the expansion of the cell is not absorbed by the user P bending the joint, and the entire body of the user P can be displaced.

  Further, since the left scapula cell 22 and the left thigh cell 25 are respectively the two-stage air cells 20b shown in FIG. 3B, the left half of the user P can be lifted high. Thereby, for example, a large inclination angle of about 75 ° can be realized.

  Further, when the left scapula cell 22 and the left thigh cell 25 are inflated, the head side center cell 21 and the foot side center cell 24 are also inflated, so that the shoulder and the thigh are not cramped, and the user feels uncomfortable. Can be reduced.

  On the other hand, as shown in FIG. 6C, if the head side central cell 21 and the foot side central cell 24 are not inflated, the user P forms a depression formed by the mat 10 and the left scapula cell 22. And it falls in the hollow formed by the mat | matte 10 and the left thigh cell 25, and a shoulder and a thigh become cramped and it feels strange.

Next, the applied operation of the lateral position conversion will be described.
First, automatic lateral position conversion by a timer will be described.
FIG. 9 is a diagram illustrating an automatic lateral position conversion operation.

  In order to perform this operation, a timer is built in the control unit 30. A predetermined program is stored in the control unit 30. Then, when the caregiver presses the operation button 33h (automatic) of the remote controller 33, the control unit 30 automatically operates, and the posture of the user P is automatically converted at appropriate time intervals. For example, as shown in FIG. 9, the inclination angle in the width direction of the user P is changed from 0 ° (horizontal state) to + 25 ° (inclined 25 ° to the right side) at a predetermined time, for example, every 30 minutes. , + 50 °, + 75 °, + 50 °, + 25 °, 0 °, −25 ° (inclined to the left by 25 °), −50 °, −75 °, −50 °, −25 °, 0 ° Change. As a result, for example, when the user is sleeping on the mat 10 at night, the posture of the user P can be changed without the caregiver providing assistance. As a result, the pressure ulcer of the user P can be prevented and the burden on the caregiver can be reduced.

  A respiration sensor may be provided in the vicinity of the bed, and the posture may be changed when the breathing of the user P stops. Thereby, the user P can be encouraged to breathe and the symptoms of apnea syndrome can be reduced. Further, a microphone may be provided on the head side of the bed, and the body position may be changed when snoring is detected. Thereby, snoring can be suppressed.

Next, the operation of sitting on the end of the bed from the side-down position will be described.
10 (a) and 10 (b) are perspective views showing the conversion operation from the side-down position to the end-sitting position.

  First, as shown in FIG. 10A, the posture of the user P is converted from the supine position to the right-side lying position by the above-described operation (see FIGS. 6A and 6B). At this stage, the left foot of the user P is above the right foot.

  Next, as shown in FIG. 10B, the bed 100 is raised up. At this time, the user P is assisted by himself or a caregiver and lowers both feet from the right end of the bed 100 to the floor. And by raising the upper body using the twisting motion, it is possible to easily sit on the end of the bed. As a result, the action range of the user P is expanded, and ADL (daily life operation) is supported.

Next, an operation of moving the user P in the height direction, that is, the longitudinal direction of the mat 10 while the user P is lying on the back will be described.
FIG. 11 is a side view showing the operation of moving the user in the longitudinal direction.

  Normally, on the back of a person, the buttocks protrude beyond the back and thighs, so when trying to move the supine user P in the longitudinal direction, a large frictional force is generated between the buttocks and the mat. To do. For this reason, it is extremely difficult for the caregiver to move the user in the longitudinal direction alone.

  Therefore, in the present embodiment, as illustrated in FIG. 11, the control unit 30 inflates the head side central cell 21 and the foot side central cell 24. As a result, the scapula and left and right thighs of the user P are lifted from the mat 10 and the buttocks Pb floats. As a result, the frictional force between the buttocks and the mat 10 is reduced, and the caregiver can put an arm between the mat 10 and the user P, so that the user P can be easily moved in the longitudinal direction. become.

Next, an operation for preventing the user from sliding down to the foot side when the bed is raised up will be described.
FIG. 12 is a side view showing an operation of preventing a user from sliding down when raising the back of the bed.

  As shown in FIG. 12, when the bed 100 is lifted up, if the bed 100 does not have a foot-lifting function, the user P slides to the foot side. Therefore, in the present embodiment, the control unit 30 inflates the foot side central cell 24 and then raises the bed 100 back up. Thereby, it can suppress that the user's P buttocks Pb is pinched | interposed between the back board of the bed 100, and the foot side center cell 24, and slides down to the foot side. Note that a dedicated air cell may be provided at the knee position to inflate it.

<Trunk maintenance>
Next, the trunk holding operation will be described.
FIG. 13 is a perspective view showing the trunk holding operation.

  As shown in FIG. 13, the mat 10 of this embodiment is placed on a bed 100. The bed 100 is a bed that can be raised. That is, a portion 102 on which the upper body of the user P rides is inclined upward in the floor plate of the bed 100. Thereby, the upper body of the user P can be raised. Further, the bed 103 of the bed 100 is bent so that a portion 103 on which the knee of the user P rides is convex upward. Thereby, when the upper body of the user P is raised, the user P can be prevented from sliding down to the foot side.

  The mattress device 1 according to the present embodiment holds the trunk of the user P so that the user P does not tilt left and right when the bed 100 performs a back-up operation. Hereinafter, this operation will be described in detail.

  First, as shown in FIG. 5, the caregiver presses the operation button 33 c (holding posture) of the remote controller 33. Thereby, as shown in FIG.2 and FIG.13, the control part 30 supplies air to the upper body left cell 27L and the upper body right cell 27R, and expands these cells. The upper left body cell 27L and the upper right body cell 27R swell outside the upper arm of the user P, and hold the upper part of the upper body of the user P from the left and right via the top layer 12 (see FIG. 1).

  Next, the caregiver operates the bed 100 to raise his back. As a result, the portion 103 is bent so as to be convex upward, and then the portion 102 rises. As a result, the upper body of the user P gets up and can take a sitting posture. At this time, since the trunk of the user P is held from the left and right by the upper body left cell 27L and the upper body right cell 27R, the user P can be prevented from tilting left and right. As a result, it is possible to prevent the user P from falling with the back raising operation. Further, since the caregiver does not always have to support the user P during the back-up operation, the burden on the caregiver is reduced.

<Support for getting out of bed>
Next, the bed leaving support operation will be described.
FIGS. 14A to 14C are diagrams illustrating the bed leaving assistance operation, and are views of the user as viewed from behind.
FIGS. 15A to 15C are diagrams illustrating the bed leaving support operation, and are views of the user as viewed from the side.
FIG. 16 is a timing chart showing the air supply operation to the two left end cells in the bed leaving support operation, with time on the horizontal axis and the state of the electromagnetic valve communicating with the air cell on the vertical axis.

  As shown in FIGS. 14 (a) and 15 (a), in the initial state, a small amount of air is injected into the cranial center cell 21 (see FIG. 2), and the other air cells 20 are in an exhausted state. . The user P sits on the left end of the bed 100. At this time, as shown in FIG. 4, for example, the user P follows the guide (not shown) drawn on the cover of the mat 10 by placing the heel part Pb directly above the left end cell 28A and above the left end cell 28B. The two vertices Pp of the buttock are arranged between the vertex 28Ap of the left end cell 28A and the vertex 28Bp of the left end cell 28B. Also, place your feet behind the knee as much as possible.

  From this state, as shown in FIG. 5, the caregiver presses the operation button 33d (rise). Thereby, as shown in FIG.1 and FIG.17, the control part 30 supplies air to the left end cell 28A and 28B alternately and intermittently. As a result, as shown in FIGS. 14 (b) and 15 (b), the left end cells 28A and 28B swell alternately little by little, and the buttocks of the user P are pushed up. Further, the left end cells 28A and 28B in the expanded state have the center portion in the width direction of the mat 10 higher than the end edge side, so that the head and upper body of the user P are pushed forward.

  At this time, since the left end cells 28A and 28B positioned on the left and right as viewed from the user P are alternately expanded, the trunk of the user P is swung to the left and right. As a result, the user P unconsciously tries to correct the posture, and tries to bring the center axis Lp of the trunk closer to the center line Lc between the left end cell 28A and the left end cell 28B. As a result, the center axis Lp of the trunk of the user P is not greatly inclined left and right with respect to the center line Lc. For this reason, it can suppress that a user falls from side to side.

  And as shown in FIG.14 (c) and FIG.15 (c), if the left end cell 28A and 28B fully inflate, the upper half of the user P will be largely extruded ahead. As a result, the user P can stand up with his / her upper body positioned just above his / her foot with a little more self-help or assistance. In this way, it is possible to assist the user P to get out of bed.

  As shown in FIG. 16, in the above-mentioned bed leaving support operation, pressure sensors are provided in the left end cells 28A and 28B, respectively, and the time for supplying air to the left end cell 28A based on the detection results of these pressure sensors. The duty ratio {tA / (tA + tB)} between tA and time tB for supplying air to the left end cell 28B may be controlled. In this case, for example, more air may be supplied to a cell having a lower pressure so that the pressures of the two cells are uniform, or more air may be supplied to a cell having a higher pressure to The height of one cell may be uniform. Which method is less uncomfortable for the user P depends on the physique and physical ability of the user P.

  In the above description, an example is shown in which the user P sits on the left end of the bed 100 and supports the rising action of the user P by inflating the left end cells 28A and 28B. It is the same. That is, when the user P is sitting on the right end portion of the bed 100, the right end cells 29A and 29B are inflated to assist the user P in rising.

<Effect>
Next, the effect of this embodiment will be described.
As described above, according to the mattress device according to the present embodiment, the lateral posture is changed so that the posture of the user is turned from the back to the side, the trunk is held when the user's upper body is raised, and the user is raised. To get out of bed.

  In the lateral position conversion, the control unit 30 inflates the head side central cell 21, the left scapula cell 22, the foot side central cell 24, and the left thigh cell 25 to change the posture of the user from the supine position to the right side. Can be converted to Similarly, the control unit 30 can convert the left lateral position by inflating the head side central cell 21, the right scapula cell 23, the foot side central cell 24, and the right thigh cell 26.

  At this time, by making the left scapula cell 22, the right scapula cell 23, the left thigh cell 25, and the right thigh cell 26 into a two-stage air cell, the half of the user P can be lifted high, and the inclination angle is increased. can do. Further, the left scapula cell 22 and the right scapula cell 23 partially overlap with the cranial center cell 21, and the left thigh cell 25 and right thigh cell 26 partially overlap with the foot side center cell 24. The inclination angle can be further increased.

  Further, the head side cell 21 and the foot side center cell 24 arranged at the center in the width direction of the mat 10 together with either the left or right air cell, the user's shoulder and thigh become cramped. Can be prevented and the user's uncomfortable feeling can be reduced.

  Furthermore, after starting the supply of air to the air cell in contact with the scapula, after a certain time Δt, the supply of air to the air cell in contact with the thigh is started, so that the posture of the user is increased. It is possible to guide the line of sight in a tilting direction before tilting in earnest. As a result, the user can be prevented from feeling suddenly, and the safety is improved.

  Pressure ulcers can be prevented by converting the user's posture from the supine position to the lateral position. In addition, lifting the shoulder blades and thighs lifts the buttocks, which facilitates operations such as changing diapers. Furthermore, after the user's posture is set to the side position, the bed can be easily converted into the end sitting position by operating the back raising function of the bed.

  Moreover, the user can be lifted in the supine position by inflating only the head side central cell 21 and the foot side central cell 24. As a result, access to the buttocks becomes easy and the user can be easily moved in the height direction. Furthermore, by inflating only the foot side central cell 24, it is possible to prevent the user from shifting to the foot side when using the back raising function of the bed.

  In trunk maintenance, when raising the user's upper body by operating the back raising function of the bed, the control unit 30 supplies air to the upper left cell 27L and the upper right cell 27R to inflate, The user's trunk can be pinched from both sides and held. As a result, the user can be prevented from falling from side to side during the back-up operation. Moreover, since the user can be held at a high position by sandwiching the upper arm portion of the user, the stability is high.

  In the bed leaving assistance, when the user is sitting on the left end of the bed, for example, the distance D1 between the apexes of the left end cells 28A and 28B into which air has been injected is the left and right apexes of the user P's buttocks It satisfies the relationship that the distance D3 between the left end cell 28A and the left end cell 28B is longer than the distance D2 between Pp and shorter than the width D4 of the user's buttocks. Then, the control unit 30 can support the rise of the user P by inflating the left end cells 28A and 28B or the right end cells 29A and 29B.

  At this time, the left end cell 28A and the left end cell 28B are independent from each other, and air does not flow from one to the other, so that one air cell does not swell much larger than the other air cell. As a result, the user's buttocks are sandwiched between the two left end cells 28A and the left end cells 28B, and the posture is stabilized.

  Further, the control unit 30 chops the trunk of the user by supplying air alternately to the left and right cells, for example, the left end cell 28A and the left end cell 28B as viewed from the seated user. Shake left and right to awaken the user's sense of balance. As a result, it is possible to suppress the user's upper body from being greatly inclined to the left and right, and to prevent the user from falling.

  In addition, according to the mattress device 1 according to the present embodiment, since the lateral position conversion operation and the bed leaving support operation are possible, the above-mentioned conversion from the supine position to the lateral position, from the lateral position using the bed raising function. The user sleeping on his / her back can be made to stand by continuously performing the conversion to the end sitting position and the support for getting out of the sitting position.

  Furthermore, in the mattress device 1 according to the present embodiment, since the remote controller 33 is separated from the main body 31 in the control unit 30, the main body 31 is disposed in a dead space that is inconvenient to access, and only the remote controller 33 is provided for the caregiver. It can be placed in a position that can be reached. Thereby, for example, even when home care is provided and the space around the bed is limited, the space can be used effectively and the burden on the caregiver can be reduced. Further, since the hook 36 is attached to the main body 33, it can be hooked on the board 101 of the bed 100. Thereby, the dead space around the bed 100 can be effectively utilized.

  Thus, the mattress device according to the present embodiment can support various operations of the user. Thereby, while supporting ADL of a user, a caregiver's burden can be reduced.

(Second Embodiment)
Next, a second embodiment will be described.
FIG. 17 is a perspective view showing the mattress device according to the present embodiment.

  As shown in FIG. 17, in the mattress device 2 according to the present embodiment, the main body 31 of the control unit 30 is embedded in the bottom layer 11 of the mat 10. However, the remote controller 33 is pulled out of the mat 10 via the cable 35.

  According to the present embodiment, by not arranging the main body portion 31 of the control unit 30 outside the mat 10, it is possible to save space compared to the first embodiment described above. As a result, the mattress device 2 can be installed even when there is almost no space around the bed. Other configurations, operations, and effects of the present embodiment are the same as those of the first embodiment.

(Third embodiment)
Next, a third embodiment will be described.
FIG. 18 is a perspective view showing the postural change support unit according to the present embodiment.

  As shown in FIG. 18, in the postural change support unit 3 according to the present embodiment, a support sheet 40, an air cell 20, and a control unit 30 are provided. The support sheet 40 is made of a tough and soft material, and has a rectangular sheet shape. The air cell 20 and the air tube 32 are attached to the support sheet 40. The type and arrangement of the air cell 20 are the same as those in the first embodiment. The configuration of the control unit 30 is also the same as that in the first embodiment.

  The support sheet 40 is used by being installed on the existing mat 110. The mat 110 is a normal mat that does not have an active function, and is disposed on the bed 100 (see FIG. 13). The outer shape of the support sheet 40 is the same as or smaller than the mat 110. For this reason, when the support sheet 40 is installed on the mat 110, the support sheet 40 does not protrude from the mat 110. On the other hand, the control unit 30 is disposed outside the mat 110 and is hooked on the board 101 of the bed 100, for example.

  The postural change support unit 3 according to the present embodiment can be installed on the existing mat 110. For this reason, it is possible to reduce the cost of the posture change support unit 3 itself, and to continue using the mat 110 that is familiar to the user. As a result, there are few obstacles in introduction. Other configurations, operations, and effects of the present embodiment are the same as those of the first embodiment.

  When the mat 110 is thin, the support sheet 40 may be disposed under the mat 110, that is, between the bed 100 and the mat 110. Also in the present embodiment, the control unit 30 may be provided in the support sheet 40 as in the second embodiment described above.

  In each of the above-described embodiments, an example is shown in which air is supplied to each air cell to be inflated. However, the present invention is not limited to this, and the substance supplied to the cell may be a fluid. For example, instead of air, a gas such as an inert gas or a liquid such as water or oil may be used. Further, mechanical means such as an actuator may be provided instead of the air cell.

  Each above-mentioned embodiment is one example which embodies the present invention, and the present invention is not limited to these embodiments. For example, in the above-described embodiments, some components or operations added, deleted, or changed are also included in the present invention.

  1, 2: Mattress device, 3: Position change support unit, 10: Mat, 11: Bottom layer, 12: Top layer, 20, 20a, 20b, 20c: Air cell, 20d: Main body, 20e: Machi, 20f: Lower Subcell, 20g: upper subcell, 20h: hole, 21: cranial center cell, 22: left scapula cell, 23: right scapula cell, 24: footside center cell, 25: left thigh cell, 26: right thigh cell, 27L: upper body left cell, 27R: upper body right cell, 28A, 28B: left end cell, 28Ap, 28Bp: apex, 29A, 29B: right end cell, 30: control unit, 31: main body unit, 32: air tube, 33 : Remote control, 33a, 33b, 33c, 33d, 33e, 33f, 33g, 33h: Operation buttons, 34: Housing, 35: Cable, 36: Hook, 40: Support Sheet, 100: bed, 101: board, 102, 103: part, 110: mat, C: center line, D1: distance between the vertices of the left end cell, D2: distance between the left and right vertices of the buttocks, D3: left end D4: distance between the sub-cells, D4: width of the buttock, Lc: center line, Lp: central axis, P: user, Pb: buttock, Pp: apex of the buttock, Δt, tA, tB: time

Claims (5)

Mat,
A first fluid cell disposed in the center of the mat on the head side;
A second fluid cell disposed on one of the left and right sides of the first fluid cell in the mat;
A third fluid cell disposed in a center part on the foot side of the mat;
A fourth fluid cell disposed on the one side of the third fluid cell in the mat;
A control unit capable of supplying fluid to the first fluid cell, the second fluid cell, the third fluid cell, and the fourth fluid cell independently of each other;
Mattress device with. A fifth fluid cell disposed on the other left and right sides of the first fluid cell in the mat;
A sixth fluid cell disposed on the other side of the third fluid cell in the mat;
The mattress device according to claim 1, further comprising:   When a person lies on the mat, the second fluid cell is disposed in a region immediately below the left scapula of the person, and the fourth fluid cell is disposed in a region directly under the left thigh of the person, The mattress device according to claim 2, wherein the fifth fluid cell is disposed in a region immediately below the right scapula of the person, and the sixth fluid cell is disposed in a region immediately below the right thigh of the person.   A part of the second fluid cell overlaps a part of the first fluid cell, a part of the fifth fluid cell overlaps a part of the first fluid cell, and the fourth fluid cell The mattress device according to claim 2 or 3, wherein a part of the third fluid cell overlaps a part of the third fluid cell, and a part of the sixth fluid cell overlaps a part of the third fluid cell. A support sheet disposed on or under the mat;
A first fluid cell disposed in a central portion on the head side of the support sheet;
A second fluid cell disposed on one of the left and right sides of the first fluid cell in the support sheet;
A third fluid cell disposed in the center of the foot side of the support sheet;
A fourth fluid cell disposed on the one side of the third fluid cell in the support sheet;
A control unit capable of supplying fluid to the first fluid cell, the second fluid cell, the third fluid cell, and the fourth fluid cell independently of each other;
A postural change support unit.