JP6091113B2 - Air mattress - Google Patents

Description

  The present invention relates to an air mattress having a care function for a patient whose posture cannot be changed by himself.

  FIG. 19 shows an air mattress 51 disclosed in Patent Document 1. The air mattress 51 has a plurality of air cells 52A; 52B; 52C; 52D, which are horizontally long in the short direction of the air mattress 51 and arranged in parallel in the longitudinal direction. It is divided. However, the air cells 52A to 52D of each group have a predetermined position for each group unit, for example, when the first air cell 52A in each group contracts in synchronism, the remaining three air cells 52B to 52B in each group. 52D expands in synchronism with each other, so that one air cell in the group contracts and the other three air cells expand, and this is effective in preventing bed slippage, but the bed is raised and back. When lowered, the patient feels the pain of stretching his back and needs to be removed by a caregiver. This spine-off operation is an act of lifting the back of the patient or lowering the patient and then lifting the back from the bed so as to hold the patient and eliminating the displacement. This work is a burden on the caregiver, especially in the case of elderly care where the elderly care for the elderly.

Japanese Utility Model Publication No. 5-11931

  The present invention has been made in view of the above-described background art, and eliminates the pain felt by the patient when raising or lowering the back of the bed and at the same time eliminates the back removal work by the caregiver. In other words, by eliminating the spine-off operation, the risk of bed slips is reduced and the burden on the caregiver is eliminated.

According to the present invention, a plurality of hollow air cells that can be expanded and contracted are horizontally long in the short direction of the air mattress and are arranged in parallel in the longitudinal direction of the air mattress, and the plurality of air cells is smaller than the plurality of air cells. An air mattress divided into a plurality of air cells as one group, wherein a plurality of air cells in the group are expanded from a state in which all air cells in the group are inflated after raising or lowering a bed on which the air mat is placed. A partial contraction mode in which a plurality of air cells contract one by one in order from the foot side to the head side of a patient who is laid on the air mattress in a supine position, and in this partial contraction mode, all the air cells in the group A plurality of air cells in the group from the contracted state one by one in the order from the patient's foot side to the head side Characterized in that the partial expansion mode Zhang. In the present invention, one group is composed of four or more air cells, and a plurality of air cells in the group are in a supine position on the air mattress from a state where all the air cells are expanded in the partial expansion mode. A partial contraction / expansion mode in which every other patient's foot is simultaneously contracted from the patient's foot side to the head's side, and then one by one is sequentially expanded from the patient's foot side to the head side. good.

  The present invention eliminates the pain caused by the tension caused on the patient's back by lifting the patient from the air mattress after the bed is raised or lowered by the back raising / lowering mechanism, so that the patient is lifted from the air mattress and is not displaced. This can eliminate the burden of the person pulling back. It is also effective in reducing the uncomfortable feeling when changing the internal pressure of the air mattress when using the air mattress. This is also effective in relieving the patient's sense of tension that occurs when the air mattress is temporarily hardened in an end-sitting position or rehabilitated and then returned to the original internal pressure. If each mode in paragraph 0005 is started by a human operation, care by a caregiver is easy to reach. When linked with the start of each mode back-up or back-down mode or the release of the rehabilitation mode in paragraph 0005, the operation of the operation unit by the caregiver is reduced, and the burden on the caregiver is reduced. If the cross section along the longitudinal direction of the air mattress in the air cell is substantially square, the patient can be supported more easily than the case where the cross section along the longitudinal direction of the air mattress in the air cell is circular or elliptical.

FIG. 3 is a schematic diagram showing an air mattress according to the first embodiment. The side view which shows the back raising state of the air mattress which concerns on Embodiment 1. FIG. The side view which shows the back-lowering state of the air mattress which concerns on Embodiment 1. FIG. FIG. 5 is a chart showing steps of the air mattress according to Embodiment 1. FIG. The side view which shows the patient's arrangement | positioning relationship to the air mattress which concerns on Embodiment 1. FIG. The side view which shows the state of expansion | swelling and contraction of the air mattress which concerns on Embodiment 1. FIG. The side view which shows the state of expansion | swelling and contraction of the air mattress which concerns on Embodiment 1. FIG. The side view which shows the state of expansion | swelling and contraction of the air mattress which concerns on Embodiment 1. FIG. FIG. 6 is a chart showing steps of an air mattress according to the second embodiment. The side view which shows the state of the expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 2. FIG. The side view which shows the state of the expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 2. FIG. The side view which shows the state of the expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 2. FIG. The side view which shows the state of the expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 2. FIG. FIG. 5 is a chart showing steps of an air mattress according to Embodiment 3. The side view which shows the state of expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 3. FIG. The side view which shows the state of expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 3. FIG. The side view which shows the state of expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 3. FIG. The side view which shows the state of expansion | swelling and shrinkage | contraction of the air mattress which concerns on Embodiment 3. FIG. The perspective view which shows the conventional air mattress.

  An air mattress 1 according to Embodiment 1 will be described with reference to FIG. The air mattress 1 has a body pressure dispersion performance in which a plurality of hollow and expandable air cells 2 are horizontally long in the short direction of the air mattress 1 and arranged in parallel in the longitudinal direction of the air mattress 1. Each air cell 2 constitutes a long and semi-cylindrical shape of the air mattress 1, and each of the air cells 2 having the semi-cylindrical shape is arranged in parallel in the longitudinal direction of the air mattress 1 and connected to each other so as to allow ventilation. An air mattress 1 is configured. Therefore, since the cross section along the longitudinal direction of the air mattress 1 in the air cell 2 is substantially quadrangular, the patient is supported more than the case where the cross section along the longitudinal direction of the air mattress 1 in the air cell 2 is circular or elliptical. Cheap. The cross section along the longitudinal direction of the air mattress 1 in the air cell 2 is a cross section when the air cell 2 is cut along the longitudinal direction of the air mattress 1. In FIG. 1, four air cells 2 are divided into a plurality of groups each including four air cells 2, and four groups 4; 5; 6; 7 are illustrated. “1 to 4” displayed in a round frame representing each air cell 2 is a numerical value indicating that each air cell 2 is separately connected to the flow path 18; 19; 20; 21 of the air supply / exhaust mechanism 15. is there.

  The air supply / exhaust mechanism 15 includes an air pump 16, a flow path switching mechanism 17, four flow paths 18 to 21, an operation unit 22, and a control box 23. The flow path switching mechanism 17 has four outlets. That is, the flow path 18 connects one outlet of the flow path switching mechanism 17 and the air cell 2 having a numerical value “1”. The channel 19 connects another outlet of the channel switching mechanism 17 and the air cell 2 having a numerical value “2”. The channel 20 connects another outlet of the channel switching mechanism 17 and the air cell 2 having a numerical value “3”. The channel 21 connects another outlet of the channel switching mechanism 17 and the air cell 2 having a numerical value “4”. The number of air cells 2 in one group may be two, three, or five or more in addition to four, but in the case of two, the number of flow paths is two, and in the case of three, the number of flow paths is two. In the case of 3, 5 or more, the number of air cells 2 and the number of channels in one group are the same, such as 5 or more channels. The number of groups may be three or five or more in addition to four.

  For example, when the caregiver operates the operation switch of the operation unit 22, the operation unit 22 inputs a signal of the operation switch operated by a person to the control box 23, and the control box 23 controls the air pump 16 and the flow path switching mechanism 17. Control. Specifically, when the flow path switching mechanism 17 is operated so as to supply the compressed air supplied from the air pump 16 to the flow path 18, the air cell 2 having the numerical value “1” is supplied from the flow path 18. It expands with compressed air. When the flow path switching mechanism 17 operates to supply the compressed air supplied from the air pump 16 to the flow path 19, the air cell 2 having a numerical value “2” is expanded by the compressed air supplied from the flow path 19. . When the flow path switching mechanism 17 operates to supply the compressed air supplied from the air pump 16 to the flow path 20, the air cell 2 having a numerical value “3” is expanded by the compressed air supplied from the flow path 20. . When the flow path switching mechanism 17 operates to supply the compressed air supplied from the air pump 16 to the flow path 21, the air cell 2 having a numerical value “4” is expanded by the compressed air supplied from the flow path 21. .

  Further, when the flow path switching mechanism 17 operates to exhaust the compressed air of the air cell 2 having the numerical value “1”, the air cell 2 having the numerical value “1” contracts. When the flow path switching mechanism 17 operates to exhaust the compressed air of the air cell 2 having the numerical value “2”, the air cell 2 having the numerical value “2” contracts. When the flow path switching mechanism 17 operates to exhaust the compressed air of the air cell 2 having a numerical value “3”, the air cell 2 having a numerical value “3” contracts. When the flow path switching mechanism 17 operates to exhaust the compressed air of the air cell 2 having the numerical value “4”, the air cell 2 having the numerical value “4” contracts. That is, each of the air cells 2 having numerical values “1” to “4” is expanded separately by the supply of compressed air, but contracted separately by the exhaust of compressed air.

  The air mattress 1 performs expansion and compression based on the operation mode set in the control box 23. The operation modes set in the control box 23 are a total expansion mode, a total contraction mode, a partial expansion mode, a partial contraction mode, a partial contraction expansion mode, and the like. In the overall expansion mode, the control box 23 controls the flow path switching mechanism 17 so that all the air cells 2 having numerical values “1” to “4” are expanded by the supply of compressed air. In the overall contraction mode, the control box 23 controls the flow path switching mechanism 17 so that all of the air cells 2 having numerical values “1” to “4” contract with the exhaust of compressed air. In the partial expansion mode, the control box 23 controls the flow path switching mechanism 17 so that at least one of the air cells 2 having numerical values “1” to “4” is expanded by the supply of compressed air. In the partial contraction mode, the control box 23 controls the flow path switching mechanism 17 so that at least one of the air cells 2 having numerical values “1” to “4” contracts due to the exhaust of compressed air. The control box 23 controls the flow path switching mechanism 17 so that the partial expansion mode and the partial contraction mode do not occur simultaneously in the same one air cell 2. In the partial contraction / expansion mode, the control box 23 controls the flow path switching mechanism 17 so that every other air cell 2 is contracted by exhaust of compressed air and then expanded by supply of compressed air.

  With reference to FIG.2 and FIG.3, the bed 25 using the air mattress 1 which concerns on Embodiment 1 is demonstrated. Examples of the bed 25 include a care bed having a frame 27 supported on the floor by a plurality of legs 26 and having a back raising / lowering mechanism and a knee raising / lowering mechanism (not shown). An air mattress 28 for holding body pressure is placed on the frame 27, and the air mattress 1 is placed on the air mattress 28. In the air mattress 28, a plurality of hollow and expandable air cells 29 having a diameter larger than the diameter of the air cell 2 are horizontally long in the short direction of the air mattress 1 and are arranged in parallel in the longitudinal direction of the air mattress 1. It is a model with body pressure retention performance. The plurality of air cells 29 are inflated by compressed air supplied from the air pump 16 of FIG. 1 via a valve (not shown) and an air pipe (not shown).

  The back movable frame 30 of the bed 25 operates so that it can be raised or lowered with the shaft 31 as the center of rotation by a back raising / lowering mechanism (not shown). FIG. 2 shows a mode in which the back movable frame 30 is raised with the shaft 31 as the rotation center, and FIG. 3 shows a mode in which the back movable frame 30 is lowered with the shaft 31 as the rotation center. 2 and 3, the knee movable frame that is raised and lowered by the knee raising and lowering mechanism is not shown, and the patient 35 is laid on the air mattress 1 in the supine position. 2 and 3, a urethane mat may be used instead of the air mattress 28.

  With reference to FIG. 5, the arrangement of the average body shape patient 35 having the average height and average weight of the Japanese to the air mattress 1 according to the first embodiment will be described. The air cells 2 are divided into 8 groups of groups 4 to 11 as they go from the foot 36 side to the head 37 side of the patient 35. In the groups 4 to 8, the four air cells 2 having numerical values “1 to 4” are divided. Arranged in the order of “1”, “2”, “3”, “4” from the foot 36 side of the patient 35 to the head 37 side, and in the groups 9; 35 in the order of “1”, “4”, “3” and “2” from the side of the foot 36 to the side of the head 37. In the group 11, two air cells 2 having numerical values “1 and 4” are placed on the foot of the patient 35. Arranged in the order of “1” and “4” from the side of 36 to the side of the head 37, the groups 8 to 11 are raised by the back movable frame 30 (see FIG. 2), and the knee of the patient 35 is movable outside the figure. The patient 35 is lifted by a knee or an inflated knee air cell with compressed air not shown. Butt 38 is placed over the group 7, the shoulder 39 of the patient 35 is illustrated when placed on top of the group 9. The number of groups is not limited to eight. Further, in terms of the arrangement of the air cells 2, the group types are exemplified as a total of two types, one type of groups 4 to 8 and one type of groups 9 to 11. However, the type is not limited to two types.

  The operation of the air mattress 1 according to Embodiment 1 will be described with reference to FIG. The operation of the air mattress 1 is performed by the caregiver operating the operation switch of the operation unit 22 in FIG. 1 after raising or lowering the back by the bed in the state where all the air cells 2 are expanded by the supply of compressed air. The air cell 2 operates according to the pressure release mode including the first to fourth steps shown in FIG. That is, since the operation mode set in the control box 23 is started by a human operation, care by the caregiver is easy to reach. The first to fourth steps are executed by the partial contraction mode, the partial expansion mode, the first partial contraction / expansion mode, and the second partial contraction / expansion mode set in the control box 23 of FIG. The first partial contraction / expansion mode and the second partial contraction / expansion mode are partial contraction / expansion modes in which every other air cell 2 in each group expands with supply of compressed air after contracting with exhaust of compressed air. .

  In FIG. 4, in the first step, the air cells 2 having numerical values “1” to “4” are exhausted with compressed air in the order of numerical values “1” to “4” one by one from the state where all the air cells 2 have expanded. It is a partial contraction mode that contracts, and the time is set to 3 minutes. In the second step, the air cells 2 having numerical values “1” to “4” are expanded one by one in the order of numerical values “1” to “4” one by one with the supply of compressed air from the state where all the air cells 2 are contracted. Inflated mode, the time is set to 4 minutes. In the third step, after all the air cells 2 have expanded, the air cells 2 having the numerical values “1” and “3” are simultaneously contracted by the exhaust of the compressed air, and then the air cells 2 having the numerical values “1” and “3” are one by one. This is a first partial contraction / expansion mode in which the air is expanded by supplying compressed air in the order of numerical values “1” and “3”, and the time is set to 1 minute. In the fourth step, after all the air cells 2 have expanded, the air cells 2 having the numerical values “2” and “4” are simultaneously contracted by the exhaust of the compressed air, and then the air cells 2 having the numerical values “2” and “4” are one by one. This is the second partial contraction / expansion mode in which the air is expanded by supplying compressed air in the order of numerical values “2” and “4”, and the time is set to 1 minute. In addition to the first to fourth steps, a new partial contraction mode, partial expansion mode, addition of a partial contraction expansion mode, a step based on the total expansion mode, or a step based on the total contraction mode may be included.

  The operation of the air mattress 1 according to Embodiment 1 will be considered with reference to FIGS. In FIG. 6 to FIG. 8, the air cell 2 expanded by the supply of compressed air is displayed in a net, and the air cell 2 contracted by the exhaust of compressed air is displayed in a deflated state but in a white expanded state. In the first step, as shown in FIG. 6, when the air cells 2 with numerical values “1”, “2”, and “3” are contracted one by one with the exhaust of compressed air, the air cell with numerical values “4” is left expanded. Therefore, the head 37 and the shoulder 39 of the patient 35, whose back is raised, gradually recline around the neck, and the blood circulation around the neck of the patient 35 is improved. The middle part of the back, waist, hips 38, thigh, calf and ankle are supported at multiple points. In the second step, as shown in FIG. 7, the air cell 2 having a numerical value “1” is expanded by the supply of compressed air, so that the whole body of the patient 35 raised up is expanded by eight air cells 2. Supported.

  Then, in the third step, as shown in FIG. 8, the air cells 2 having numerical values “1” and “3” are simultaneously contracted by the exhaust of compressed air, so that the whole body of the patient 35 raised up is numerical value “2”. It is submerged a little while being supported by the expanded air cell 2 of “4”. Thereafter, the air cells 2 having the numerical values “1” and “3” are expanded one by one in the order of the numerical values “1” and “3” by supplying compressed air, so that all the expanded air cells 2 are raised up. Lift the whole body of the body so as not to bend it. Further, in the fourth step, after the air cells 2 having numerical values “2” and “4” are simultaneously contracted by exhaust of compressed air, the air cells 2 having numerical values “2” and “4” are numerical values “2” and “4” one by one. Inflated with compressed air supply in order. As described above, in the third step and the fourth step, the whole body of the patient 35 raised up is slightly depressed, and then the whole body of the patient 35 raised up is lifted without bending. The entire body of the patient 35 moves up and down to improve blood circulation. Thus, the patient 35 can be lifted from the air mattress 1 in parallel with the back raising or back lowering by the back raising / lowering mechanism of the bed, or after the back raising or lowering, so that the patient 35 can be prevented from pain and bed slipping. At the same time, the caregiver's burden is eliminated.

  With reference to FIG. 9 thru | or FIG. 13, the air mattress 1 which concerns on Embodiment 2 is demonstrated. First, with reference to FIG. 10, the arrangement | positioning of the patient 35 of the average body shape of the Japanese to the air mattress 1 which concerns on Embodiment 2 is demonstrated. When the air cell 2 is divided into a plurality of groups, each of which has six air cells 2, the patient 35 is divided into five groups 41 to 45 from the foot 36 side to the head 37 side. In the groups 41 to 45, six air cells 2 having numerical values “1” to “6” are arranged in the order of “1” to “6” from the foot 36 side to the head 37 side of the patient 35. To do.

  Although not shown, an air supply / exhaust mechanism corresponding to the air supply / exhaust mechanism 15 in FIG. 1 is provided, and the air cells 2 having numerical values “1” to “4” in each group are the flow paths 18 to The air cells 2 having numerical values “5” and “6” in each group are connected to the flow path switching mechanism corresponding to the flow path switching mechanism 17 in FIG. Are separately connected to a channel switching mechanism corresponding to the channel switching mechanism 17. The flow path switching mechanism according to the second embodiment includes six outlets that connect the six flow paths separately.

  The operation of the air mattress 1 according to Embodiment 2 will be described with reference to FIG. The operation of the air mattress 1 is performed by the caregiver operating the operation switch of the operation unit 22 in FIG. 1 after raising or lowering the back by the bed in the state where all the air cells 2 are expanded by the supply of compressed air. The air cell 2 operates according to the pressure release mode including the first to fourth steps shown in FIG. That is, since the operation mode set in the control box 23 is started by a human operation, care by the caregiver is easy to reach. The first to fourth steps are executed by the partial contraction mode, the partial expansion mode, the first partial contraction / expansion mode, and the second partial contraction / expansion mode set in the control box 23 of FIG. The first partial contraction / expansion mode and the second partial contraction / expansion mode are partial contraction / expansion modes in which every other air cell 2 in each group expands with supply of compressed air after contracting with exhaust of compressed air. .

  In FIG. 9, in the first step, the air cells 2 having numerical values “1” to “6” are exhausted with compressed air in the order of numerical values “1” to “6” one by one from the state where all the air cells 2 have expanded. It is a partial contraction mode that contracts, and the time is set to 5 minutes. The second step is a portion in which the air cells 2 having the numerical values “1” to “6” are expanded one by one in the order of the numerical values “1” to “6” one by one from the state where all the air cells 2 are contracted. Inflated mode, time is set to 6 minutes. In the third step, after all the air cells 2 are expanded, the air cells 2 having the numerical values “1”, “3”, and “5” are simultaneously contracted by the exhaust of the compressed air, and then the numerical values “1”, “3”, and “5” are set. This is a first partial contraction / expansion mode in which the air cell 2 expands one by one in the order of numerical values “1” to “5” by supplying compressed air, and the time is set to 1.5 minutes. In the fourth step, after all the air cells 2 are expanded, the air cells 2 having the numerical values “2”, “4”, and “6” are simultaneously contracted by the exhaust of the compressed air, and then the numerical values “2”, “4”, and “6” are set. This is a second partial contraction / expansion mode in which the air cell 2 expands one by one in the order of numerical values “2” to “6” by supplying compressed air, and the time is set to 1.5 minutes. In addition to the first to fourth steps, a new partial contraction mode, partial expansion mode, addition of a partial contraction expansion mode, a step based on the total expansion mode, or a step based on the total contraction mode may be included.

  The operation of the air mattress 1 according to Embodiment 2 will be considered with reference to FIGS. 11 to 13. In FIG. 11 to FIG. 13, the air cell 2 expanded by the supply of compressed air is displayed in a net, and the air cell 2 contracted by the exhaust of compressed air is displayed in a deflated state but in a white expanded state. In the first step, as shown in FIG. 11, when the air cells 2 having numerical values “1” to “4” are contracted one by one with the exhaust of compressed air, the air cells having numerical values “5” and 6 remain expanded. Therefore, the head 37, the shoulder 39, the waist, the hip 38, the thigh, the calf, and the ankle of the patient 35 who is raised up are supported uniformly at multiple points. In the second step, as shown in FIG. 12, the air cell 2 having a numerical value “1” is expanded by the supply of compressed air, so that the head 37 and the shoulder 39 of the patient 35, whose back has been raised, gradually move around the neck. Thus, the blood flow around the neck of the patient 35 is improved, while the waist, thigh, and calf of the patient 35, whose back is raised, are uniformly supported by the three air cells 2. Thus, after raising or lowering the back of the bed by the back raising / lowering mechanism, the pain and bed slip of the patient 35 can be prevented and the burden on the caregiver is eliminated.

  In the third step, as shown in FIG. 13, the air cells 2 having numerical values “1”, “3”, and “5” are simultaneously contracted by the exhaust of compressed air, so that the whole body of the patient 35 raised up is numerically displayed. While being supported by the expanded air cell 2 of “2”, “4”, and “6”, it is slightly depressed. Thereafter, the air cells 2 having numerical values “1”, “3”, and “5” are expanded one by one in the order of numerical values “1”, “3”, and “5”, so that all the expanded air cells 2 are expanded. The whole body of the patient 35 raised up is lifted without bending. Further, in the fourth step, after the air cells 2 having the numerical values “2”, “4”, and “6” are simultaneously contracted by the exhaust of the compressed air, the air cells 2 having the numerical values “2”, “4”, and “6” It expands with the supply of compressed air in the order of “2”, “4” and “6”. As described above, in the third step and the fourth step, the whole body of the patient 35 raised up is slightly depressed, and then the whole body of the patient 35 raised up is lifted without bending. The entire body of the patient 35 moves up and down to improve blood circulation. Thus, the patient 35 can be lifted from the air mattress 1 in parallel with the back raising or back lowering by the back raising / lowering mechanism of the bed, or after the back raising or lowering, so that the patient 35 can be prevented from pain and bed slipping. At the same time, the caregiver's burden is eliminated.

  With reference to FIG. 14 thru | or FIG. 18, the air mattress 1 which concerns on Embodiment 3 is demonstrated. First, with reference to FIG. 15, the arrangement | positioning to the patient 35 of the Japanese average body shape of the air mattress 1 which concerns on Embodiment 3 is demonstrated. When the air cells 2 are divided into a plurality of groups each including eight air cells 2, they are divided into four groups 46 to 49 from the foot 36 side to the head 37 side of the patient 35. In the groups 46 to 49, eight air cells 2 having numerical values “1” to “8” are arranged in the order of “1” to “8” from the foot 36 side to the head 37 side of the patient 35. To do.

  Although not shown, an air supply / exhaust mechanism corresponding to the air supply / exhaust mechanism 15 in FIG. 1 is provided, and the air cells 2 having numerical values “1” to “4” in each group are the flow paths 18 to 18 in FIG. 1 are connected separately to the flow path switching mechanism corresponding to the flow path switching mechanism 17 of FIG. 1, and the air cells 2 of numerical values “5” to “8” in each group are illustrated by four flow paths. Are separately connected to a flow path switching mechanism corresponding to one flow path switching mechanism 17. The flow path switching mechanism according to the third embodiment includes eight outlets that connect the eight flow paths separately.

  The operation of the air mattress 1 according to Embodiment 3 will be described with reference to FIG. The operation of the air mattress 1 is performed by the caregiver operating the operation switch of the operation unit 22 in FIG. 1 after raising or lowering the back by the bed in the state where all the air cells 2 are expanded by the supply of compressed air. The air cell 2 operates according to the pressure release mode including the first to fourth steps shown in FIG. That is, since the operation mode set in the control box 23 is started by a human operation, care by the caregiver is easy to reach. The first to fourth steps are executed by the partial contraction mode, the partial expansion mode, the first partial contraction / expansion mode, and the second partial contraction / expansion mode set in the control box 23 of FIG. The first partial contraction / expansion mode and the second partial contraction / expansion mode are partial contraction / expansion modes in which every other air cell 2 in each group expands with supply of compressed air after contracting with exhaust of compressed air. .

  In FIG. 14, in the first step, the air cells 2 having numerical values “1” to “8” are exhausted with compressed air in the order of numerical values “1” to “8” one by one from the state where all the air cells 2 have expanded. It is a partial contraction mode that contracts, and the time is set to 2.5 minutes. The second step is a portion in which the air cells 2 having the numerical values “1” to “8” are expanded one by one in the order of the numerical values “1” to “8” one by one from the contracted state of the air cells 2. Inflated mode, time is set to 3 minutes. In the third step, after all the air cells 2 are expanded, the air cells 2 having numerical values “1”, “3”, “5”, and “7” are simultaneously contracted by the exhaust of compressed air, and then the numerical values “1”, “3”, “ This is a first partial contraction / expansion mode in which the air cells 2 of “5” and “7” are expanded by supplying compressed air one by one in the order of numerical values “1” to “7”, and the time is set to 2 minutes. In the fourth step, after all the air cells 2 have expanded, the air cells 2 having numerical values “2”, “4”, “6”, and “8” are simultaneously contracted by exhaust of compressed air, and then the numerical values “2”, “4”, “ This is a second partial contraction / expansion mode in which the air cells 2 of 6 and 8 are expanded one by one in the order of numerical values “2” to “8” one by one, and the time is set to 2 minutes. In addition to the first to fourth steps, a new partial contraction mode, partial expansion mode, addition of a partial contraction expansion mode, a step based on the total expansion mode, or a step based on the total contraction mode may be included.

  The operation of the air mattress 1 according to Embodiment 3 will be considered with reference to FIGS. 16 to 18. In FIG. 16 to FIG. 18, the air cell 2 expanded by the supply of compressed air is displayed in a net, and the air cell 2 contracted by exhaust of compressed air is displayed in a deflated state but in a white expanded state. In the first step, as shown in FIG. 16, when the air cells 2 having the numerical values “1” to “6” are contracted one by one by the exhaust of the compressed air, the air cells having the numerical values “7” and “8” are left to expand. Therefore, the head 37 and the shoulder 39 of the patient 35, whose back is raised, gradually recline around the neck, and blood circulation around the neck of the patient 35 is improved, while the patient 35, whose back is raised. The buttocks 38 and the calves are uniformly supported by the four air cells 2. In the second step, as shown in FIG. 17, the air cell 2 having numerical values “1” and “2” is expanded by the supply of compressed air, so that the head 37 and the shoulder 39 of the patient 35 that is raised back raise the neck. The posture of the patient 35 gradually leans back and forth as the center, and blood circulation around the neck of the patient 35 is improved, while the back and the waist and knees of the patient 35 are uniformly supported by the four air cells 2.

  In the third step, as shown in FIG. 18, the air cells 2 having numerical values “1”, “3”, “5”, and “7” are simultaneously contracted by the exhaust of compressed air, so that the whole body of the patient 35 raised up is back. Is submerged slightly while being supported by the expanded air cell 2 having numerical values “2”, “4”, “6”, and “8”. After that, the air cells 2 having the numerical values “1”, “3”, “5”, and “7” are expanded one by one in the order of the numerical values “1” to “7”, thereby supplying all the expanded air cells 2. Is lifted so as not to bend the whole body of the patient 35 whose back is raised. In the fourth step, after the air cells 2 with numerical values “2”, “4”, “6”, and “8” are simultaneously contracted by the exhaust of compressed air, the air cells 2 with numerical values “2”, “4”, “6”, and “8”. Expands one by one in the order of numerical values “2” to “8” by the supply of compressed air. As described above, in the third step and the fourth step, the whole body of the patient 35 raised up is slightly depressed, and then the whole body of the patient 35 raised up is lifted without bending. The entire body of the patient 35 moves up and down to improve blood circulation. Accordingly, the patient 65 can be lifted from the air mattress 1 in parallel with the back-up or back-down by the back-up / back-down mechanism of the bed, or after the back-up or back-down, so that the patient 35 can be prevented from pain and bed slip. At the same time, the caregiver's burden is eliminated.

  In the first to third embodiments, when the air cell 2 contracts, the pressure of the adjacent inflated air cell 2 is adjusted by exhaust, and the step between the contracting air cell 2 and the adjacent inflated air cell 2 is adjusted. You may make it decrease. Further, for a patient who is smaller or larger than the average body shape, the position of the air cell 2 relative to the body may be changed by changing the connection of the flow path to the air cell 2.

  Although not shown in the figure, one group is composed of five air cells 2, and the air cells 5 arranged in every other group in each group are contracted by exhaust of compressed air and then expanded by supply of compressed air. In addition, when the control box 27 controls the flow path switching mechanism 84, in the first partial contraction / expansion mode, the numerical value “1” is obtained after the air cells 5 having the numerical values “1”, “3”, and “5” are simultaneously contracted by the exhaust of the compressed air. The air cells 5 of “3” and “5” are expanded one by one in the order of numerical values “1” to “5”, and in the second partial contraction / expansion mode, numerical values “2” and “4”. The air cells 5 having the numerical values “2” and “4” are expanded one by one in the order of the numerical values “1” to “5” one by one after the other air cells 5 are simultaneously contracted by the exhaust of the compressed air. Is also possible. Further, in the third step and the fourth step in FIGS. 4, 9, and 14, every other air cell that contracts and expands is used. However, a plurality of air cells such as every two or every three may be placed. .

  In each of the above-described embodiments, a caregiver operates the operation unit 22 in FIG. 1 so that the control box 23 controls the expansion and contraction of the air cell 2 based on the operation mode set in the control box 23. . On the other hand, an operation in which the control box 23 is set in the control box 23 in conjunction with the back-up / back-down mode or the rehabilitation mode in the bed 25 in FIG. 2 without the caregiver operating the operation unit 22 in FIG. A mode of controlling the expansion and contraction of the air cell 2 based on the mode is also conceivable. The back raising / lowering mode is a mode in which the back movable frame 30 is raised or lowered by the back raising / lowering mechanism as shown in FIG. 2 or FIG. The rehabilitation mode is a mode in which the air mattress is hardened by supplying compressed air to the air mattress temporarily in an end sitting position or rehabilitation.

  When interlocking with the back-up or back-down mode, the caregiver operates a switch for starting the back-up or back-down mode of the operation unit 22 in FIG. 1, and a signal corresponding to the start of the back-up or back-down mode from this switch. Is input to the control box 23, the control box 23 controls expansion and contraction of the air cell 2 based on the operation mode set in the control box 23. When the rehabilitation mode is linked, the caregiver operates the switch for canceling the rehabilitation mode of the operation unit 22 in FIG. 1, and a signal corresponding to the release of the rehabilitation mode is input to the control box 23 from this switch. Accordingly, the expansion and contraction of the air cell 2 are controlled based on the operation mode set in the control box 23.

  For example, when the pressure release mode consisting of the first to fourth steps of FIG. 4, FIG. 9 or FIG. 14 is set in the control box 23 as the operation mode set in the control box 23, the control box 23 is turned upside down. Based on the input of a signal corresponding to the start of the back-lowering mode or the input of the signal corresponding to the release of the rehabilitation mode, the pressure release mode is performed in conjunction with the start of the back-up or back-lowering mode or the release of the rehabilitation mode.

  The time for starting the pressure release mode may be set in the control box 23. As the setting of the time for the start of the pressure release mode in the control box 23, for example, the pressure release mode is performed in parallel with the back-up or back-down mode, or after completion of the back-up or back-down mode, or the rehabilitation mode. It can be considered to be performed in parallel with the release or after the rehabilitation mode is released. Thus, if the pressure release mode is linked to the start of the back-up or back-down mode or the release of the rehabilitation mode, the caregiver's operation to the operation unit 22 in FIG. Lighter than.

1 is an air mattress, 2 is an air cell, 3 is a missing number, 4 to 11 are groups, 12 to 14 are missing numbers, 15 is an air supply / exhaust mechanism, 16 is an air pump, 17 is a flow path switching mechanism, and 18 to 21 are first Thru | or a flow path, 22 is an operation part, 23 is a control box, 24 is a missing number, 25 is a bed, 26 is a leg, 27 is a frame, 28 is an air mattress, 29 is an air cell, 30 is a back movable frame, 31 is a shaft, 32 34 to 34 are missing numbers, 35 are patients, 36 are feet, 37 are heads, 38 are hips, 39 are shoulders, 40 are missing numbers, 41 to 49 are groups, 50 are missing numbers, 51 are air mattresses, and 52A to 52D are air cells.

Claims (2)

A plurality of air cells that are hollow and expandable and contractable are horizontally long in the short direction of the air mattress and are arranged in parallel in the longitudinal direction of the air mattress, and the plurality of air cells includes a plurality of air cells smaller than the plurality of air cells. The air mattresses divided into a plurality of groups as one group, wherein a plurality of air cells in the group are expanded from a state where all the air cells in the group are expanded after raising or lowering the back of the bed on which the air mat is placed. Partial contraction mode in which the patient is laid on the air mattress in a supine position in order from the leg side to the head side, and in this partial contraction mode, all the air cells in the group are contracted A plurality of air cells in the group inflating one by one in order from the patient's foot side to the head side Air mattress, characterized in that the expansion mode. One group is composed of four or more air cells, the side of the plurality of air cells supine lying patient foot on the air mattress all of the air cells are in the group from a state of being expanded in part expanded mode 2. A partial contraction / expansion mode in which each other is simultaneously contracted from the side of the head to the side of the head and then expanded one by one from the side of the patient's foot to the side of the head. Air mattress.

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