JP2018201867A - Blood purification device - Google Patents

Abstract

To realize a blood purification device comprising a housing having good maintainability while securing strength.SOLUTION: A blood purification device 1 comprises a housing 10, and an element group 14 consisting of a plurality of elements for performing blood purification treatment. The housing 10 comprises two outside vertical plates 30 and 31 opposed to each other, and an inside vertical plate 32 arranged between the two outside vertical plates 30 and 31 to connect the two outside vertical plates 30 and 31 to each other. At least one of the plurality of elements of the element group 14 is attached to at least one of the inside vertical plate 32 or the outside vertical plates 30 and 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blood purification apparatus.

  Blood purification treatments such as dialysis treatment and plasma exchange treatment are usually performed using a blood purification apparatus. For example, blood purification devices that perform dialysis treatment include blood purifiers made of hollow fiber membrane modules, tubes and pumps for sending blood to the blood purifiers, tubes, quantitative chambers and valves for sending dialysate to the blood purifiers It is composed of a plurality of elements such as a filter for removing unnecessary substances from the dialysate. These elements are accommodated in the housing of the blood purification apparatus (see Patent Document 1).

  A conventional blood purification device casing has a structure in which pillars are set up at four corners of the casing to secure strength, and horizontal partition plates are arranged inside the pillars, and each stage partitioned by the partition plates. Each element was housed inside.

Japanese Patent Laying-Open No. 2015-93166

  However, in the blood purification apparatus described above, since the frontage for the user to access the inside of each stage becomes narrow, it is difficult for the user to access when maintaining the element, and it is difficult to check the arrangement and connection status of the element. Maintenance is not good.

  This invention is made | formed in view of this point, and makes it the objective to implement | achieve the blood purification apparatus which has a housing | casing with sufficient maintainability, ensuring intensity | strength.

  As a result of intensive studies, the present inventors have solved the above problem by making the casing have two outer vertical plates facing each other and an inner vertical plate connecting the two outer vertical plates. The present inventors have found that this can be done and have completed the present invention.

That is, the present invention includes the following aspects.
(1) a housing and a plurality of elements for performing blood purification treatment, wherein the housing is disposed between the two outer vertical plates facing each other, the two outer vertical plates, and the two An internal vertical plate that connects the external vertical plates, and at least one of the plurality of elements is attached to at least one of the internal vertical plate or the external vertical plate. The “element” includes various devices, devices, members and the like for performing blood purification treatment.
(2) An inner space surrounded by the inner vertical plate and the outer vertical plate is formed on both surfaces of the inner vertical plate, and the housing has doors that can open and close the inner space. The blood purification apparatus as described.
(3) The blood purification apparatus according to (2), wherein the door is configured to be rotatable around a vertical axis provided on the back side of the housing.
(4) The blood purification apparatus according to (2) or (3), wherein a control unit is provided on the housing, and the door extends to a side surface of the control unit.
(5) The first outer vertical plate of the two outer vertical plates is disposed on the front surface of the housing, and the second outer vertical plate is disposed on the rear surface of the housing, (1) to (4) ).
(6) The plurality of elements include a liquid storage container in which a liquid used in blood purification processing is stored, and a mounting capable of mounting the liquid storage container on an outer surface of the second outer vertical plate. The blood purification apparatus according to (5), wherein a placement unit is provided.
(7) The plurality of elements include a hollow fiber membrane module, and the hollow fiber membrane module is attached to an outer surface of the second outer vertical plate, according to (5) or (6). Blood purification device.

  ADVANTAGE OF THE INVENTION According to this invention, the blood purification apparatus which has a housing | casing with sufficient maintainability is ensured, ensuring intensity | strength.

It is a perspective view which shows an example of the blood purification apparatus. It is a perspective view which shows an example of the housing | casing of the state which removed the element. It is YY sectional drawing of the housing | casing of FIG. It is a perspective view which shows the side door of the housing | casing in the state which removed the element. It is the perspective view seen from the front side which shows an example of the housing | casing which attached the element. It is the perspective view seen from the back side which shows an example of the housing | casing which attached the element. It is explanatory drawing which shows the structural example of the element group of a blood purification apparatus.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the illustrated ratios. Moreover, the following embodiment is an illustration for explaining the present invention, and the present invention is not limited to this embodiment.

  FIG. 1 is a diagram showing a schematic configuration of blood purification apparatus 1 in the present embodiment. The blood purification apparatus 1 includes, for example, a housing 10, a side door 11, a front door 12, a carriage 13, an element group 14 including various elements for performing blood purification processing, a control unit 15, and the like. .

  The blood purification apparatus 1 has an overall shape of a vertically long substantially rectangular parallelepiped, a substantially rectangular parallelepiped casing 10 is installed on a carriage 13, and a substantially rectangular parallelepiped control unit 15 is installed on the casing 10. . The front door 12 is provided on the front surface (X direction side in FIG. 1) of the housing 10, and the side doors 11 are provided on both lateral sides of the housing 10 and the control unit 15. Various elements of the element group 14 are attached to the housing 10 and the front door 12.

  For example, as shown in FIG. 2, the housing 10 is disposed between two outer vertical plates 30, 31 facing each other and the two outer vertical plates 30, 31 arranged in the front-rear direction. It has an inner vertical plate 32 that connects the vertical plates 30 and 31, a bottom plate 33, and a top plate 34.

  The outer vertical plates 30 and 31 are formed in a vertically long substantially rectangular shape. The first outer vertical plate 30 is disposed on the front side (X direction side) of the casing 10, and the second outer vertical plate 31 is disposed on the rear side (opposite side in the X direction) of the casing 10. Yes. The first outer vertical plate 30 and the second outer vertical plate 31 are arranged in parallel to each other.

  The inner vertical plate 32 is formed in a vertically long and substantially rectangular shape that is substantially the same height as the outer vertical plates 30 and 31. As shown in FIG. 3, the inner vertical plate 32 connects the central portion of the first outer vertical plate 30 and the central portion of the second outer vertical plate 31. The inner vertical plate 32 is connected to the first outer vertical plate 30 and the second outer vertical plate 31 at a right angle. With this configuration, the outer vertical plates 30, 31 and the inner vertical plate 32 are substantially H-shaped when viewed from above. Internal spaces S <b> 1 and S <b> 2 surrounded by the inner vertical plate 32 and the outer vertical plates 30 and 31 are formed on the left and right surfaces of the inner vertical plate 32 of the housing 10. Each vertical plate 30, 31, 32 is appropriately provided with a fixing member and a hole for attaching each element of the element group 14. The housing 10 is made of, for example, metal or resin.

  As shown in FIGS. 1 and 4, the side door 11 is formed in a vertically long substantially rectangular shape that covers the control unit 15 and the housing 10. The side door 11 can be rotated around a vertical axis 11 a provided at the rear side end of the side surface of the housing 10 and the control unit 15. The side door 11 can open and close the internal spaces S1 and S2 by turning.

  As shown in FIG. 1, the front door 12 can rotate around a rotation axis provided at one of the left and right ends of the front surface of the housing 10. Some elements such as a pump can be attached to the front door 12.

  The control unit 15 is a computer, and can implement a blood purification process by controlling devices and devices of the element group 14 by executing a program. The control unit 15 includes a display screen 40 that displays various types of information on blood purification processing on the front surface. The display screen 40 can perform various settings for blood purification processing.

  The blood purification apparatus 1 has an element group 14 composed of a plurality of elements as shown in FIGS. 5 and 6, and each element of the element group 14 is attached to the housing 10, the front door 12, and the like.

  The blood purification apparatus 1 includes an element group 14 as shown in FIG. The blood purification apparatus 1 includes, for example, a blood purifier 50, a blood circuit 51, a dialysate circuit 52, and the like.

  The blood purifier 50 is a hollow fiber membrane module including a hollow fiber membrane in a cylindrical module, for example, and has a blood purification membrane 60 inside.

  The blood circuit 51 has a flow path constituted by a soft tube. The blood circuit 51 includes, for example, a blood collection channel 71 that leads from the blood collection unit 70 to the primary side (inner region of the hollow fiber membrane) of the blood purification membrane 60 of the blood purification device 50, and the primary side of the blood purification membrane 60 of the blood purification device 50. A blood return channel 73 communicating with the blood return part 72 is provided. A blood pump 80 and a drip chamber 81 are provided in the blood collection channel 71. A drip chamber 90 is provided in the blood return channel 73.

  The dialysate circuit 52 includes, for example, a metering chamber 100, a first dialysate supply circuit 101, a second dialysate supply circuit 102, a first waste liquid circuit 103, a second waste liquid circuit 104, and water removal. A circuit 105 and a cleaning liquid supply circuit 106 are provided.

  The metering chamber 100 includes a container 110 having a fixed volume, and a partition wall 111 that divides the container 110 into a liquid supply chamber A and a waste liquid chamber B. The partition 111 is made of, for example, a rubber diaphragm and is freely displaceable. In the metering chamber 100, the partition 111 is displaced due to fluctuations in the internal pressures of the liquid supply chamber A and the waste liquid chamber B, and the volumes of the liquid supply chamber A and the waste liquid chamber B are changed. Get smaller.

  The first dialysate supply circuit 101 stores a first flow path 120 leading from an external supply source (not shown) of dialysis water to the supply chamber A of the metering chamber 100, and a stock solution of dialysate 2 Two storage containers 121, 122, a second flow path 123 connecting the storage container 121 and the first flow path 120, and a third flow path 124 connecting the storage container 122 and the first flow path 120. ing. The 1st flow path 120, the 2nd flow path 123, and the 3rd flow path 124 are comprised by the soft tube. The first flow path 120 is provided with a heater 125, a pump 126, an on-off valve 127, and the like. The second flow path 123 and the third flow path 124 are provided with on-off valves 128, 129, and the like.

  The second dialysate supply circuit 102 includes a fourth flow path 130 that leads from the supply chamber A of the metering chamber 100 to the secondary side of the blood purification membrane 60 of the blood purifier 50 (the outer region of the hollow fiber membrane). ing. The fourth flow path 130 is configured by a soft tube. The fourth flow path 130 is provided with an on-off valve 131, a liquid mixing device 132, a flow rate sensor 133, two filters 134 and 135, and the like. The liquid mixing device 132 promotes mixing of the dialysate (stock solution and dialysis water). The filters 134 and 135 are hollow fiber membrane modules, for example, and are for capturing endotoxins that are unnecessary.

  The first waste liquid circuit 103 includes a fifth flow path 140 that communicates from the secondary side of the blood purification film 60 of the blood purifier 50 to the waste liquid chamber B of the metering chamber 100. The fifth flow path 140 is configured by a soft tube. The fifth channel 140 is provided with a pump 141, an on-off valve 142, and the like.

  The second waste liquid circuit 104 includes a sixth flow path 150 that leads from the waste liquid chamber B of the quantitative chamber 100 to the external waste liquid part. The sixth flow path 150 is configured by a soft tube. The sixth flow path 150 is provided with an on-off valve 151 and the like.

  The water removal circuit 105 includes a seventh flow path 160 that bypasses the quantitative chamber 100 from the first waste liquid circuit 103 and communicates with the second waste liquid circuit 104. The seventh flow path 160 is configured by a soft tube. The seventh channel 160 is provided with a pump 161 and the like.

  The cleaning liquid supply circuit 106 includes two storage containers 170 and 171 that store the stock solution of the cleaning liquid, and an eighth flow path 172 that sends the stock solutions of the storage containers 170 and 171 to the second flow path 123 and the third flow path 124. have. The eighth channel 172 is configured by a soft tube. The eighth channel 172 is provided with on-off valves 173, 174 and the like.

  At the time of blood purification treatment in dialysis treatment, the blood pump 80 is activated, and the patient's blood is supplied to the blood purifier 50 through the blood collection channel 71 of the blood circuit 51. The blood passes through the primary side of the blood purification membrane 60 of the blood purifier 50 and then returns to the patient through the blood return channel 73 of the blood circuit 51.

  On the other hand, in the dialysate circuit 52, the dialysate is supplied to and discharged from the secondary side of the blood purification membrane 60 of the blood purifier 50. First, in the first dialysate supply circuit 101, the pump 126 is operated, the dialysate water whose temperature is adjusted by the heater 125 and the stock solution supplied from the storage containers 121 and 122 are mixed to generate a dialysate, The dialysate is supplied to the supply chamber A of the metering chamber 100. Further, while the dialysate is filled in the liquid supply chamber A, the waste liquid in the waste liquid chamber B is discharged outside through the second waste liquid circuit 104.

  When dialysate is filled in the supply chamber A, the pump 141 causes the dialysate in the supply chamber A to pass through the second dialysate supply circuit 102 to the secondary side of the blood purification membrane 60 of the blood purifier 50. Supplied. The dialysate (waste liquid) that has passed through the secondary side of the blood purification membrane 60 is supplied to the waste liquid chamber B of the metering chamber 100 through the first waste liquid circuit 103. In addition, a part of the waste liquid in the first waste liquid circuit 103 is supplied to the second waste liquid circuit 104 through the water removal circuit 105 by the pump 161. Thus, in the blood purifier 50, blood is supplied to the primary side of the blood purification membrane 60, dialysate is supplied to the secondary side of the blood purification membrane 60, and a predetermined unnecessary substance in the blood is dialyzed through the blood purification membrane 60. It is discharged to the liquid side and the blood is purified.

  Further, when the dialysate circuit 52 is washed, the washing solution supply circuit 106 supplies the stock solution from the storage containers 170 and 171 to the eighth channel 172, generates the washing solution, and the washing solution passes through the second channel. 123, the third flow path 124, and the first dialysate supply circuit 101.

  As described above, the element group 14 of the blood purification apparatus 1 includes, for example, the blood purifier 50, the blood collection channel 71, the blood return channel 73, the blood pump 80, the drip chamber 81, the drip chamber 90, the metering chamber 100, the first Flow path 120, storage containers 121 and 122, second flow path 123, third flow path 124, heater 125, pump 126, on-off valve 127, on-off valves 128 and 129, fourth flow path 130, on-off valve 131 , Liquid mixing device 132, flow rate sensor 133, filters 134 and 135, fifth channel 140, pump 141, on-off valve 142, sixth channel 150, on-off valve 151, seventh channel 160, pump 161, It consists of elements such as storage containers 170, 171, eighth channel 172, on-off valves 173, 174.

  As shown in FIGS. 5 and 6, each element of the element group 14 is attached to the outer vertical plates 30 and 31 and the inner vertical plate 32 of the housing 10. For example, as shown in FIG. 6, the metering chamber 100 is attached to the inner vertical plate 32. The filters 134 and 135 are attached to the outer surface of the second outer vertical plate 31. Further, a mounting table 190 is provided on the outer surface of the second outer vertical plate 31, and cleaning liquid storage containers 170 and 171 are mounted on the mounting table 190.

  In addition, an element for handling a liquid such as the dialysate circuit 52 is attached to the inner vertical plate 32. Elements such as the first dialysate supply circuit 101 and the second waste liquid circuit 104 are arranged in the internal space S1, and the second dialysate supply circuit 102, the first waste liquid circuit 103, and the like are arranged in the internal space S2. Elements are arranged.

  Some elements of the element group 14 are attached to the front door 12. For example, the blood pump 80 is provided on the front door 12. Blood purifier 50 is held by an arm (not shown) provided in casing 10.

  According to the present embodiment, the housing 10 includes two outer vertical plates 30 and 31 that face each other and an inner vertical plate 32 that connects the two outer vertical plates 30 and 31, and the element group 14 These elements are attached to the inner vertical plate 32 and the outer vertical plates 30 and 31, so that it is easy for the user to access when performing maintenance on the elements. In addition, it is easy to check the arrangement of each element and the connection status between elements such as tubes. Further, since the three vertical plates 30, 31, and 32 are connected in an H shape, the strength of the housing 10 is high. Therefore, it is possible to realize the housing 10 having good maintainability while ensuring the strength.

  Since the housing 10 has side doors 11 that can open and close the internal spaces S1 and S2, the internal spaces S1 and S2 can be accessed by opening the side doors 11. Therefore, it is easy to access the internal spaces S1 and S2 during maintenance, and the maintainability can be further improved.

  Since the side door 11 is configured to be rotatable around a vertical axis 11a provided on the back side of the housing 10, the side door 11 is opened from the front side of the blood purification apparatus 1 to access the internal spaces S1 and S2. it can. Therefore, the user can suitably perform maintenance even in a narrow space without going around to the back side of the blood purification apparatus 1.

  Since the side door 11 extends to the side of the control unit 15 and can be opened and closed with respect to the side of the control unit 15, the maintenance of the control unit 15 can also be performed by opening the side door 11.

  Since the first outer vertical plate 30 is disposed on the front surface of the housing 10 and the second outer vertical plate 31 is disposed on the rear surface of the housing 10, the internal spaces S1 and S2 of the housing 10 are on the left and right sides. It is formed on the surface and is easy to maintain.

  Since the mounting table 190 on which the storage containers 170 and 171 can be mounted is provided on the outer surface of the second outer vertical plate 31, the storage containers 170 and 171 do not need to be placed around the apparatus and do not get in the way. In addition, the storage containers 170 and 171 can be moved together with the housing 10. The liquid storage container placed on the mounting table 190 may be another liquid storage container, such as the storage containers 121 and 122.

  Since the filters 134 and 135 of the hollow fiber membrane module are attached to the outer surface of the second outer vertical plate 31, it is easy to replace the hollow fiber membrane module. The hollow fiber membrane module attached to the outer surface of the second outer vertical plate 31 may be a hollow fiber membrane module for other uses.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, the overall configuration of blood purification apparatus 1 in the above embodiment is not limited to this, and may have other configurations. The configuration (arrangement, type, number, etc.) of the element group 14 of the blood purification apparatus 1 is not limited to that of the above embodiment. The attachment position of each element of the element group 14 to the housing 10 is not limited to that in the above embodiment. For example, some or all of the elements of the element group 14 may be attached to either the outer vertical plate or the inner vertical plate. Although the blood purification apparatus 1 of the above embodiment performs dialysis treatment, the blood purification apparatus 1 performs other blood purification treatments such as plasma exchange therapy, leukocyte removal therapy, continuous slow blood filtration therapy, and the like. The present invention is applicable.

  The present invention is useful in realizing a blood purification apparatus having a casing with good maintainability while ensuring strength.

DESCRIPTION OF SYMBOLS 1 Blood purification apparatus 10 Case 11 Side door 14 Element group 30 1st outer vertical board 31 2nd outer vertical board 32 Inner vertical board 50 Blood purifier

Claims (7)

A housing,
A plurality of elements for performing blood purification treatment,
The housing includes two outer vertical plates facing each other, and an inner vertical plate arranged between the two outer vertical plates and connecting the two outer vertical plates.
The blood purification apparatus, wherein at least one of the plurality of elements is attached to at least one of the inner vertical plate and the outer vertical plate. On both surfaces of the inner vertical plate, an internal space surrounded by the inner vertical plate and the outer vertical plate is formed,
The blood purification apparatus according to claim 1, wherein the housing has a door that can freely open and close the internal space.   The blood purification apparatus according to claim 2, wherein the door is configured to be rotatable around a vertical axis provided on the back side of the housing. A control unit is provided on the housing,
The blood purification apparatus according to claim 2 or 3, wherein the door extends to a side surface of the control unit.   The first outer vertical plate of the two outer vertical plates is disposed on the front surface of the housing, and the second outer vertical plate is disposed on the rear surface of the housing. The blood purification apparatus as described. The plurality of elements include a liquid storage container in which liquid used in blood purification processing is stored,
The blood purification apparatus according to claim 5, wherein a mounting portion on which the liquid storage container can be mounted is provided on an outer surface of the second outer vertical plate. The plurality of elements includes a hollow fiber membrane module,
The blood purification apparatus according to claim 5 or 6, wherein the hollow fiber membrane module is attached to an outer surface of the second outer vertical plate.