JP6954748B2 - Panel circuit - Google Patents

Description

The present invention relates to a panel circuit.

For example, ascites treatment for removing pathogenic substances such as bacteria and cancer cells from ascites collected from a patient is usually performed using an ascites treatment device. The ascites treatment device includes a liquid circuit including a tube for flowing ascites and a filter, and a main body of the device having a built-in control device and pump.

Since this type of ascites treatment device requires the liquid circuit to be replaced each time the ascites treatment is performed, a part of the tube of the liquid circuit is held on the panel so that the liquid circuit can be attached to the main body of the device and easily removed. It is provided with a panel circuit (see Patent Document 1). This panel circuit is removable from the device body.

JP-A-2015-73847

By the way, in the above-mentioned panel circuit, a part of the tube is attached to the panel and the tube is transferred in a state where the part of the tube is held by the panel. It may be pulled or pushed. In this case, a large external force is applied to the portion of the outer periphery of the panel that holds the tube, and the tube may come off from the outer periphery of the panel. Especially flexible tubes tend to come off the panel. Then, once the tube comes off, it takes time and effort to hold the tube on the panel again. Further, when the tube is detached and the tube is not in an appropriate position and direction, erroneous attachment is likely to occur when the tube is attached to the device main body.

This application was made in view of this point, and it is necessary to prevent the tube of the panel circuit used in the body fluid treatment device such as the ascites treatment device from coming off the panel and to prevent the tube from being erroneously attached to the device body. Is the purpose.

As a result of diligent studies, the present inventors have found that the above object can be achieved by providing a pressing portion, a locking portion, and a groove portion in this order from the outside to the inside of the panel on the outer peripheral portion of the panel. The invention was completed.

That is, the present invention includes the following aspects.
(1) A panel circuit that can be attached to the body fluid treatment device and that constitutes at least a part of the liquid circuit of the body fluid treatment device, a flexible tube, and a panel that holds a part of the tube. The outer peripheral portion of the panel is engaged with a locking portion that fits and locks the tube from one direction along the surface of the panel and presses at least the side surface of the tube on the front side in the fitting direction. A pressing portion provided outside the panel and pressing the side surface on the rear side in the fitting direction of the tube locked to the locking portion, and a pressing portion provided inside the panel than the locking portion, said to be A panel circuit provided with a groove portion for accommodating and holding the tube locked to the locking portion along the extending direction of the tube.
(2) The panel circuit according to (1), wherein the groove portion is provided with an inclined portion that gradually lowers the position of the tube from the locking portion toward the groove portion.
(3) The panel circuit according to (1) or (2), wherein the relationship between the closest distance x between the locking portion and the holding portion and the outer diameter y of the tube satisfies x <y.
(4) In any of (1) to (3), the tube has a diameter-expanded portion that suppresses a displacement of the tube in the extending direction by abutting on the locking portion and / or the pressing portion. The panel circuit described.
(5) The panel circuit according to (4), wherein an enlarged diameter portion of the tube is provided between the locking portion and the holding portion.
(6) The panel circuit according to (4) or (5), wherein the panel is provided with a recess for accommodating the enlarged diameter portion.
(7) The panel has another locking portion that locks the tube and / or another pressing portion that presses the side surface of the tube, and the tube has the other locking portion and / or the other. The panel circuit according to any one of (1) to (6), which has another diameter-expanded portion that suppresses the displacement of the tube in the extending direction by abutting against the holding portion of the tube.
(8) The panel circuit according to (7), wherein the other locking portion and / or the other holding portion is arranged on both sides of the other enlarged diameter portion of the tube in the extending direction.
(9) The panel circuit according to (7) or (8), wherein the panel is provided with a recess for accommodating the other enlarged diameter portion.
(10) The tube has a branch portion from which the first tube branches to the second tube, and the panel has an extension direction of the first tube of the branch portion and an extension of the second tube. The panel circuit according to any one of (1) to (9), which is provided with a protrusion for suppressing misalignment in the direction.
(11) The panel circuit according to (10), wherein the branch portion has an enlarged diameter.
(12) The panel circuit according to (11), wherein the panel is provided with a recess for accommodating the expanded branch portion.
(13) The panel according to any one of (1) to (12), wherein the panel contains a resin containing any of ABS, PC, PVC, PS, PP, POM, PE, PMMA, SAN, or PA. circuit.
(14) The panel circuit according to any one of (1) to (13), wherein the panel is formed by injection molding.
(15) The panel circuit according to any one of (1) to (14), wherein the tube protrudes from the outer peripheral portion in a plurality of directions of the panel.
(16) The panel circuit according to any one of (1) to (15), wherein the tube protrudes 25 cm or more from the panel to the outside.
(17) The panel circuit according to any one of (1) to (16), wherein the panel has a flat area of 500 cm ^{2 or less.}
(18) The panel circuit according to any one of (1) to (17), wherein the body fluid treatment device is an ascites treatment device or a blood treatment device.

According to the present invention, it is possible to prevent the tube of the panel circuit used in the body fluid treatment device from coming off the panel, so that it is possible to reduce the time and effort required to hold the tube on the panel again. In addition, it is possible to prevent the tube from being erroneously attached to the main body of the device.

It is explanatory drawing which shows the outline of the body fluid processing apparatus and a panel circuit. It is explanatory drawing which shows an example of a liquid circuit. It is explanatory drawing which shows an example of a panel circuit. It is explanatory drawing which shows an example of the structure of the outer peripheral part of a panel. It is a perspective view which shows an example of the structure of the outer peripheral part of the panel in the state which the tube is removed. It is a perspective view which shows an example of the structure of the outer peripheral part of the panel in the state which the tube is fitted. It is explanatory drawing which shows the relationship between the distance of a locking part and a holding part, and the outer diameter of a tube. It is explanatory drawing which shows an example of the outer peripheral part of a panel when a tube has a diameter-expanded part. It is explanatory drawing which shows an example of the outer peripheral part of a panel when the diameter-expanded part is provided inside the locking part. It is explanatory drawing which shows an example of the outer peripheral part of the panel which has a recess. It is explanatory drawing which shows the cross section of a diameter-expanded part and a concave part. It is explanatory drawing which shows an example of another outer peripheral part of a panel. It is explanatory drawing which shows an example of the inner region of a panel. It is explanatory drawing which shows an example of another outer peripheral part of a panel. It is explanatory drawing which shows an example of the other outer peripheral part of the panel which has a branch part.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The same elements are designated by the same reference numerals, and duplicate description will be omitted. In addition, the positional relationship such as up, down, left, and right shall be based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the ratios shown. Further, the following embodiments are examples for explaining the present invention, and the present invention is not limited to this embodiment.

FIG. 1 is an explanatory diagram showing a panel circuit 1 according to the present embodiment and a body fluid processing device 2 to which the panel circuit 1 is mounted.

<Body fluid treatment device>
For example, the body fluid treatment device 2 has a device main body portion 10, an operation portion 11, a carriage portion 12, a pole portion 13, and the like.

The device main body 10 is configured to incorporate or attach various devices, devices, and members necessary for performing body fluid treatment such as ascites treatment and blood treatment. For example, the device main body 10 includes various valve groups (valves 71, 72, 90, 92, 110, 120) that open and close the tube 150 of the liquid circuit 40, which will be described later, and a pump group (pump 91) that pumps the liquid of the liquid circuit 40. , 100), a pressure sensor (130, 131) for detecting the pressure of the liquid circuit 40, a liquid separator (filter 51, concentrator 52) such as a hollow thread film module, and the like can be built in or attached. .. A panel circuit 1 can be mounted on the side surface of the device main body 10.

The operation unit 11 is, for example, a touch panel, and is capable of inputting various settings for body fluid processing and displaying the operating state of body fluid processing. The operation unit 11 is provided with a control device such as a computer, and the control device controls various devices to execute body fluid processing. A storage bag (ascites bag 50, concentrated ascites bag 53) or the like used for body fluid treatment can be hung from the pole portion 13.

<Liquid circuit>
The body fluid treatment device 2 includes a liquid circuit for flowing various liquids for performing body fluid treatment. FIG. 2 is an explanatory diagram showing an example of the liquid circuit 40. The liquid circuit 40 is, for example, a circuit example for performing ascites treatment.

The liquid circuit 40 includes an ascites bag 50, a filter 51, a concentrator 52, a concentrated ascites bag 53, a first line 54, a second line 55, a third line 56, and a waste liquid line 57. It includes a water removal line 58, a circulation line 59, a cleaning line 60, a cleaning liquid bag 61, a drip chamber 62, and the like.

The ascites bag 50 can contain ascites collected from the patient.

The filter 51 has, for example, a cylindrical shape. The filter 51 has liquid passage ports 51a and 51b at both ends in the longitudinal direction, and has two liquid passage ports 51c and 51d on the side surfaces.

The filter 51 includes a filtration membrane 70 such as a hollow fiber membrane that removes a predetermined pathogenic substance such as bacteria or cancer cells and allows a predetermined useful component such as albumin to pass through. The inner region (primary side) of the filtration membrane 70 leads to the liquid passage ports 51a and 51b, and the outer region (secondary side) of the filtration membrane 70 leads to the liquid passage ports 51c and 51d.

The first line 54 connects the ascites bag 50 and the filter 51. The downstream end of the first line 54 is connected to the liquid passage port 51a of the filter 51. An on-off valve 72 is provided on the first line 54.

The waste liquid line 57 leads to the liquid passage port 51b of the filter 51. The waste liquid line 57 is provided with an on-off valve 71.

The concentrator 52 has, for example, a cylindrical shape. The concentrator 52 has liquid passage ports 52a and 52b at both ends in the longitudinal direction, and has two liquid passage ports 52c and 52d on the side surfaces.

The concentrator 52 includes, for example, a concentrating membrane 80 such as a hollow fiber membrane that removes water from the filtered ascites filtered by the filter 51 to concentrate the filtered ascites. The inner region (primary side) of the concentrated membrane 80 leads to the liquid passage ports 52a and 52b, and the outer region (secondary side) of the concentrated membrane 80 leads to the liquid passage ports 52c and 52d. In the present embodiment, the liquid passage port 52d is closed.

The second line 55 connects the filter 51 and the concentrator 52. The upstream end of the second line 55 is connected to the liquid passage 51c of the filter 51, and the downstream end is connected to the liquid passage 52a of the concentrator 52.

A drip chamber 62 is connected in the middle of the second line 55. Further, the second line 55 is provided with an on-off valve 90, a first pump 91, and an on-off valve 92.

The third line 56 connects the concentrator 52 and the concentrated ascites bag 53. The upstream end of the third line 56 is connected to the liquid inlet 52b of the concentrator 52, and the downstream end is connected to the concentrated ascites bag 53.

A second pump 100 is provided on the third line 56.

The water removal line 58 is connected to the liquid passage port 52c of the concentrator 52. The downstream side of the water removal line 58 leads to a drainage portion.

The circulation line 59 connects the concentrated ascites bag 53 and the second line 55. The circulation line 59 is connected between the first pump 91 and the on-off valve 90 on the second line 55. The circulation line 59 is provided with an on-off valve 110. The connecting portion between the circulation line 59 and the second line 55 is a branch portion 111.

The cleaning line 60 connects the cleaning liquid bag 61 and the second line 55. The cleaning line 60 is connected between the drip chamber 62 and the concentrator 52 in the second line 55. The cleaning line 60 is provided with an on-off valve 120. The connecting portion between the second line 55 and the cleaning line 60 is a branch portion 121.

A first pressure measuring device 130 is connected to the liquid passing port 51d of the filter 51. A second pressure measuring device 131 is connected to the drip chamber 62.

A soft and flexible tube 150 is used for the first line 54, the second line 55, the third line 56, the waste liquid line 57, the water removal line 58, the circulation line 59 and the cleaning line 60. ing.

In the body fluid treatment device 2 configured as described above, ascites treatment is performed. For example, the first pump 91 and the second pump 100 are operated, and the ascites of the ascites bag 50 is sent to the filter 51 through the first line 54. Ascites flows into the inlet side (inner region) of the filtration membrane 70 from the liquid passage port 51a of the filter 51, passes through the filtration membrane 70, and flows out to the outlet side (outer region) of the filtration membrane 70. At this time, a predetermined pathogenic substance is removed from the ascites, and the ascites is filtered. The filtered ascites that has flowed out to the outlet side of the filtration membrane 70 flows out from the filter 51 to the second line 55, is sent to the concentrator 52 through the second line 55, and is sent to the concentrator 52, and is the inlet of the concentrating membrane 80 of the concentrator 52. Inflow to the side. Here, a part of the water in the filtered ascites passes through the concentrated membrane 80, flows out to the outlet side of the concentrated membrane 80, and is discharged through the water removal line 58. As a result, water is removed from the filtered ascites and the filtered ascites is concentrated. The concentrated ascites concentrated by the concentrator 52 is stored in the concentrated ascites bag 53 through the third line 56. Further, if necessary, the on-off valve 90 is closed, the concentrated ascites of the concentrated ascites bag 53 is returned to the second line 55 through the circulation line 59, and concentrated through the concentrator 52 and the third line 56. Returned to the ascites bag 53. In this way, concentrated ascites is circulated and reconcentrated.

Further, for example, when cleaning the filtration membrane 70 of the filter 51, the cleaning liquid of the cleaning liquid bag 61 is supplied to the filter 51 through the cleaning line 60 and the second line 55, and passes through the filtration membrane 70 of the filter 51. It is discharged from the waste liquid line 57.

<Panel circuit>
As shown in FIG. 3, the panel circuit 1 has a tube 150 that forms a part of the liquid circuit 40 and a panel 151 that holds a part of the tube 150.

The tube 150 has softness and flexibility, and is made of, for example, transparent polyvinyl chloride or the like.

The panel 151 is made of a hard resin or the like. The material of the panel 151 is, for example, ABS, PC (polyethylene), PVC (polyvinyl chloride), PS (polystyrene), PP (polypropylene), POM (polyacetal), PE (polyethylene), PMMA (polymethylmethacrylate), SAN. It contains a resin containing either (styrene-acrylonitrile) or PA (polypropylene). The panel 151 is formed into a substantially square thin plate shape by, for example, injection molding. The panel 151 has a flat area of, for example, 500 cm ² or less, preferably 400 cm ^{2 or less.}

A tube 150 is arranged on the panel 151 along the surface of the panel. For example, the panel 151 is provided with a second line 55, a third line 56, a circulation line 59, and a tube 150 of a part of the cleaning line 60. The tube 150 projects outward from the outer peripheral portions R of the plurality of sides of the panel 151. In the present embodiment, the outer peripheral portion R is a portion within 10 cm from the outer edge of the panel 151. The tube 150 projects outward from a plurality of locations on the panel 151, for example, 10 or more locations. The tube 150 protrudes from the panel 151 by 25 cm or more, preferably 35 cm or more. At the time of transfer of the panel circuit 1, the portions of the tube 150 protruding from the panel 151 may be bundled together.

The tube 150 is held at a plurality of locations on the panel 151. For example, as shown in FIGS. 4 to 6, the tube 150 is fitted and locked to the outer peripheral portion R1 of the panel 151 from one direction along the panel surface, and the front side surface of the tube 150 in the fitting direction X is pressed. The locking portion 160, the pressing portion 161 that presses the side surface behind the fitting direction X of the tube 150 locked to the locking portion 160, and the tube 150 locked to the locking portion 160 in the extending direction of the tube 150. A groove 162 is provided along the Y to accommodate and hold the groove. FIG. 4 is a plan view of the outer peripheral portion R1 of the panel 151, FIG. 5 is a perspective view of the outer peripheral portion R1 of the panel 151 with the tube 150 removed, and FIG. 6 is a state in which the tube 150 is attached. It is a perspective view of the outer peripheral portion R1 of a panel 151.

As shown in FIGS. 4 to 6, the locking portion 160 is located on the front side of the fitting direction X of the tube 150 and is erected on the reference surface A of the panel 151, and the fitting direction from the side surface portion 160a. An arc portion 160b that wraps around in an arc shape is provided on the upper surface of the tube 150 toward the rear side of the X. The rear side surface of the locking portion 160 in the fitting direction X is open. The locking portion 160 can lock the tube 150 by fitting the tube 150 through this opening. For example, a guide wall 163 is formed along the extending direction Y of the tube 150 in the inner direction of the panel 151 of the side surface portion 160a (upward in the extending direction Y in FIG. 4). The reference surface A of the panel 151 refers to the plane having the largest area among the surfaces of the panel 151.

The pressing portion 161 is provided at a position shifted from the locking portion 160 to the outside of the panel 151 (lower side in FIG. 4) and to the rear side (right side in FIG. 4) in the fitting direction X from the locking portion 160. Has been done. The pressing portion 161 has, for example, a rectangular thin plate shape, and is erected on the reference surface A of the panel 151. The pressing portion 161 is provided so that the plate side surface 161a faces the fitting direction X.

As shown in FIG. 7, the locking portion 160 and the pressing portion 161 are arranged so that the relationship between the closest contact distance x between the locking portion 160 and the pressing portion 161 and the outer diameter y of the tube 150 satisfies x <y. ing.

As shown in FIGS. 4 to 6, the groove portion 162 is provided inside the panel 151 (upper side in FIG. 4) with respect to the locking portion 160. The groove 162 is formed along the extending direction Y of the tube 150 toward the inside of the panel 151. As shown in FIG. 5, the groove portion 162 has a bottom surface 162a lower than the reference surface A of the panel 151 and side surfaces 162b covering both side surfaces of the tube 150. The groove portion 162 has a depth corresponding to, for example, the outer diameter dimension of the tube 150.

As shown in FIGS. 4 to 6, a protrusion 164 for holding the tube 150 is formed on the side surface 162b. The protrusion 164 projects from the uppermost portion of the side surfaces 162b on both sides toward the center side of the groove portion 162. The protrusions 164 are formed at positions facing each other on the side surfaces 162b on both sides.

The groove portion 162 is provided with an inclined portion 165 that gradually lowers the position of the tube 150 from the locking portion 160 toward the groove portion 162. The groove portion 162 is formed so that, for example, the extending direction Y of the tube 150 is bent by about 90 degrees.

As shown in FIG. 3, the panel 151 is provided with a large number of locking portions 180, pressing portions 181 and guide walls 182 in addition to the locking portion 160 and the pressing portion 161.

According to this embodiment, a locking portion 160, a pressing portion 161 and a groove portion 162 are provided on the outer peripheral portion R1 of the panel 151. When an external force acts on the portion of the tube 150 protruding from the panel 151, for example, when an external force in the front-rear direction in the fitting direction X acts on the tube 150 of the outer peripheral portion R1 of the panel 151, the locking portion 160 and the pressing portion 161 act. The tube 150 is pressed, and the displacement of the tube 150 is suppressed. In particular, since the pressing portion 161 is located outside the panel 151 with respect to the locking portion 160, the pressing portion 161 presses the tube 150 when an external force acts toward the rear side in the fitting direction X, and the tube It is possible to prevent the 150 from coming off the locking portion 160. Further, when an external force acts toward the front side in the fitting direction X, the side surface portion 160a of the locking portion 160 presses the tube 150. Further, since the tube 150 is pressed by the locking portion 160 and the pressing portion 161 so that even the flexible tube 150 whose hardness is easily changed in a high temperature environment can be prevented from coming off from the panel 151 or being displaced from an appropriate position. Further, since the tube 150 is hard to come off, the tube 150 of the panel 151 is in an appropriate position and direction, and erroneous attachment to the device main body of the tube 150 can be suppressed.

When an external force in the extending direction Y acts on the tube 150 on the outer peripheral portion R1 of the panel 151, the tube 150 is held in the groove 162, so that the deviation of the tube 150 in the extending direction Y can be suppressed. In particular, when the tube 150 is displaced inward in the extending direction Y (upper side in FIG. 4), the tube 150 loosens and rises from the surface of the panel 151, which makes it easy for the tube 150 to come off from the locking portion 160. According to the embodiment, since the groove portion 162 is provided inside the locking portion 160, it is possible to prevent the tube 150 from being displaced inward in the extending direction Y, and as a result, it is possible to prevent the tube 150 from being disengaged from the locking portion 160. ..

Further, in the vicinity of the place where different parts are connected to the tube 150 protruding from the panel 151 to the outside, or the place where the tube 150 is intensively wound, a steric hindrance or a partial weight is applied. In particular, the tube 150 is easily detached from the panel 151 and is easily displaced, but according to the present embodiment, it is possible to effectively prevent the tube 150 from being detached from the panel 151 even in such a case.

Since the groove portion 162 is provided with an inclined portion 165 that gradually lowers the position of the tube 150 from the locking portion 160 toward the groove portion 162, it is possible to prevent the tube 150 from bending when the tube 150 enters the groove portion 162.

Since the relationship between the closest contact distance x between the locking portion 160 and the pressing portion 161 and the outer diameter y of the tube 150 satisfies x <y, the tube 150 is disengaged from between the locking portion 160 and the pressing portion 161. Can be effectively suppressed.

Since the tube 150 protrudes from the outer peripheral portion R of the panel 151 in a plurality of directions to the outside of the panel 151, it is possible to reduce an error in attaching each tube 150 to the body fluid treatment device 2. When the tube 150 is exposed to the outside from a plurality of directions of the panel 151, an external force is likely to be applied to the tube 150. In such a case, the tube 150 is pressed by the locking portion 160, the pressing portion 161 and the groove portion 162. Therefore, it is possible to prevent the tube 150 from coming off.

The tube 150 protrudes 25 cm or more from the panel 151, and the proportion of the tube 150 that is not fixed to the panel 151 becomes relatively large, and an external force is likely to be applied to the tube 150. In such a case, the outer peripheral portion of the panel 151 The effect of providing the locking portion 160, the pressing portion 161 and the groove portion 162 on R1 is great.

Since the flat area of the panel 151 is 500 cm ² or less and the panel 151 is small, it can be mounted on a small device and the packaging form can be reduced while reducing the amount of material used for the panel 151. Here, even in the panel 151 where the flat area is small and the tube 150 is originally easily disengaged by an external force, the tube 150 is pressed by the locking portion 160, the pressing portion 161 and the groove portion 162 to increase the portion for holding the tube 150. It is possible to effectively prevent the tube 150 from coming off the panel 151.

In the above embodiment, the tube 150 may have a diameter-expanded portion 190 having a diameter larger than that of other portions as shown in FIG. The enlarged diameter portion 190 is arranged between the locking portion 160 and the pressing portion 161. The enlarged diameter portion 190 is formed in a cylindrical shape, for example. The enlarged diameter portion 190 may be formed by being connected to another portion of the adjacent tube 150, or may be integrally molded with the other portion. Further, the enlarged diameter portion 190 may be made of a material harder than other portions of the tube 150. The enlarged diameter portion 190 has a radius larger than that of the other portion of the tube 150, for example, by 0.8 mm or more.

According to such an example, even if an external force acts on the extending direction Y of the tube 150, the enlarged diameter portion 190 abuts on the locking portion 160 or the pressing portion 161 and the tube 150 moves in the extending direction Y. Can be suppressed. As a result, it is possible to prevent the tube 150 from being loosened and lifted from the surface of the panel 151 and disengaged from the locking portion 160.

In FIG. 8, the diameter-expanded portion 190 was arranged between the locking portion 160 and the pressing portion 161. However, the diameter-expanded portion 190 is arranged so as to abut only on the locking portion 160 or the pressing portion 161. May be good. For example, as shown in FIG. 9, the enlarged diameter portion 190 may be arranged so as to be adjacent to the inside of the locking portion 160. In this case, even if the tube 150 is pulled outward, the enlarged diameter portion 190 comes into contact with the locking portion 160 and acts as a stopper to prevent the tube 150 from being disengaged from the locking portion 160.

As shown in FIGS. 10 and 11, the panel 151 may be formed with a recess 200 for accommodating the enlarged diameter portion 190. The recess 200 is recessed with respect to the reference plane A, and has a depth D comparable to the radius difference d between the enlarged diameter portion 190 and other portions. In such a case, the surfaces of the tube 150 and the panel 151 can be separated from each other by the enlarged diameter portion 190 to prevent the flow path of the tube 150 from bending.

In the above embodiment, the panel 151 has another locking portion 180 that fits and locks the tube 150 from one direction along the panel surface, and a fitting direction of the tube locked to the locking portion 180. It is provided with another pressing portion 181 that presses the side surface of the. The tube 150 may be provided with another diameter-expanded portion 210 that suppresses the displacement of the tube 150 in the extending direction Y by abutting at least one of the locking portion 180 or the pressing portion 181.

For example, as shown in FIG. 12, a locking portion 180 is provided on the outer peripheral portion R2 of the panel 151, and a diameter-expanded portion 210 is formed inside the extending direction Y of the tube 150 of the locking portion 180. Further, a pressing portion 181 is provided on the outer peripheral portion R2 of the panel 151, and the pressing portion 181 may press the side surface of the enlarged diameter portion 210 on the rear side in the fitting direction X of the locking portion 180. In such a case, for example, even if the tube 150 is pulled to the outside of the extending direction Y (upper side in FIG. 12), the enlarged diameter portion 210 comes into contact with the locking portion 180, so that the tube 150 is displaced in the extending direction Y. Can be suppressed.

For example, as shown in FIG. 13, a locking portion 180 and a pressing portion 181 are provided in the inner region P of the panel 151, and an enlarged diameter portion 210 is formed between the locking portion 180 and the pressing portion 181. In this case, the diameter-expanded portion 210 comes into contact with the locking portion 180 or the pressing portion 181 to suppress the displacement of the tube 150 in the extending direction Y.

For example, as shown in FIG. 14, two locking portions 180 are provided on the outer peripheral portion R3 of the panel 151 along the extending direction Y of the tube 150, and the diameter-expanded portion 210 is provided between the two locking portions 180. Is formed. In this case, the displacement of the tube 150 in the extending direction Y can be suppressed by contacting the enlarged diameter portion 210 with any of the locking portions 180. In this example, the pressing portion 181 is formed on the outside of the locking portion 180 in the extending direction Y (upper side in FIG. 14).

In addition, as shown in FIG. 14, one locking portion 180 is provided on the outer peripheral portion R3 of the panel 151 along the extending direction Y of the tube 150, and the inside of the locking portion 180 in the extending direction Y ( An enlarged diameter portion 210 is formed on the lower side of FIG. 14). In this case, the diameter-expanded portion 210 comes into contact with the locking portion 180, so that the displacement of the tube 150 in the extending direction Y can be suppressed. In this example, a pressing portion 181 is formed on the outside of the locking portion 180.

Although not shown, the panel 151 may be provided with two pressing portions 181 along the extending direction Y of the tube 150, and an enlarged diameter portion 210 may be formed between the two pressing portions 181.

As shown in FIG. 11, the panel 151 may be formed with a recess 211 for accommodating the other enlarged diameter portion 210 described above. In such a case, it is possible to prevent the surfaces of the tube 150 and the panel 151 from being separated by the enlarged diameter portion 210.

As shown in FIG. 15, the tube 150 has a branch portion 220 at which the second tube 150b branches from the first tube 150a, and the outer peripheral portion R4 of the panel 151 has a branch portion 220 of the first tube 150a of the branch portion 220. A protrusion 221 that suppresses the misalignment of the extending direction Y1 and the extending direction Y2 of the second tube 150b may be provided. For example, the first tube 150a and the second tube 150b are connected in a T shape, and the protrusion 221 is formed in an L shape along the T shape of the branch portion 220, for example.

The branch portion 220 has an enlarged diameter. The branch portion 220 may be formed by being connected to another portion of the adjacent tube 150, or may be integrally molded with the other portion. Further, the branch portion 220 may be made of a material harder than other portions of the tube 150. The branch portion 220 has a radius larger than that of the other portion of the tube 150, for example, by 0.8 mm or more.

The panel 151 is formed with a recess 223 in which the branch portion 220 is housed. The concave portion 223 has a convex shape in a plan view. The recess 223 is recessed with respect to the reference plane A like the recess 200 shown in FIG. 11, and has a depth D comparable to the radius difference d between the branch portion 220 and the other portion. The branch portion 220 may be a branch portion 111 in which the second line 55 and the circulation line 59 in FIG. 2 are connected.

Further, as shown in FIG. 15, a diameter-expanded portion 210 is formed on the front side (opposite side of the branch portion 220 (right side in FIG. 15)) of the protrusion 221 of the second tube 150b, and the diameter-expanded portion 210 is formed. A locking portion 180 is provided on the front panel 151. A locking portion 180 is provided on the panel 151 inside the branch portion 220 of the first tube 150a (upper side in FIG. 15), and a pressing portion 181 is provided between the locking portion 180 and the branch portion 220. There is.

According to such an example, since the branch portion 220 abuts on the protrusion 221 it is possible to suppress the misalignment of the first tube 150a and the second tube 150b in the extending directions Y1 and Y2. As a result, it is possible to prevent the tube 150 from floating around the branch portion 220 and being separated from the surface of the panel 151 and coming off from the locking portion 180.

Since the branch portion 220 has an enlarged diameter, the strength of the portion that abuts on the protrusion 221 can be increased, for example. As a result, even if the tube 150 is pulled with a strong force, the branch portion 220 can be prevented from being damaged or blocked.

Since the panel 151 is provided with a recess 223 for accommodating the branch portion 220, the flow path of the branch portion 220 of the tube 150 is more distant from the panel 151 than the flow path of the other portion, and the flow path of the tube 150 bends. Can be suppressed.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the ideas described in the claims, which naturally belong to the technical scope of the present invention. It is understood as a thing.

For example, in the above embodiment, the configuration, shape, etc. of the panel 151 may be other. The arrangement of the tubes 150 on the panel 151 may be other than that. For example, the locking portion 160, the pressing portion 161 and the groove portion 162 are provided at one location on the outer peripheral portion of the panel 151, but may be provided at a plurality of locations. Further, the installation locations of the locking portion 160, the pressing portion 161 and the groove portion 162 are not limited to those of the present embodiment. The number and installation location of the other locking portions 180 and pressing portions 181 are not limited to those of the present embodiment. Further, the liquid circuit 40 partially formed by the panel circuit 1 is not limited to that of the present embodiment. Further, the body fluid treatment device 2 to which the panel circuit 1 is mounted is for performing ascites treatment, but is not limited to this, and blood for plasma exchange therapy, leukapheresis therapy, continuous slow hemofiltration therapy, dialysis therapy and the like. It may be the one that performs processing. Furthermore, the present invention may be applied to a panel circuit of a body fluid treatment device that treats other body fluids, such as other body fluids such as pleural effusion.

The present invention is useful in suppressing the tube of the panel circuit used in the body fluid treatment device from coming off the panel.

1 Panel circuit 2 Body fluid treatment device 150 Tube 151 Panel 160 Locking part 161 Holding part 162 Groove part X Fitting direction Y Extending direction

Claims (18)

It is a panel circuit that can be attached to a body fluid treatment device.
Flexible tubes that form at least part of the liquid circuit of the body fluid treatment device,
With a panel that holds a part of the tube,
On the outer periphery of the panel,
A locking portion that fits and locks the tube from one direction along the panel surface and presses the side surface of the tube on the front side in the fitting direction in at least the one direction.
And the engagement than locking portion provided on the outside of the panel, the pressing portion for pressing the fitting direction rear side surface of the locking portion to the locked tube,
The locking portion than is provided inside of the panel, said locking portion locked with the tube housed in the extending direction of the tube groove for holding is provided, the panel circuit .. The panel circuit according to claim 1, wherein the groove portion is provided with an inclined portion that gradually lowers the position of the tube from the locking portion toward the groove portion. The panel circuit according to claim 1 or 2, wherein the relationship between the closest distance x between the locking portion and the holding portion and the outer diameter y of the tube satisfies x <y. The panel circuit according to any one of claims 1 to 3, wherein the tube has a diameter-expanded portion that suppresses a displacement of the tube in the extending direction by abutting on the locking portion and / or the pressing portion. The panel circuit according to claim 4, wherein an enlarged diameter portion of the tube is provided between the locking portion and the pressing portion. The panel circuit according to claim 4 or 5, wherein the panel is provided with a recess for accommodating the enlarged diameter portion. The panel has another locking portion that locks the tube and / or another holding portion that presses the side surface of the tube.
10. The panel circuit described in Crab. The panel circuit according to claim 7, wherein the other locking portion and / or the other holding portion is arranged on both sides of the other enlarged diameter portion of the tube in the extending direction. The panel circuit according to claim 7 or 8, wherein the panel is provided with a recess for accommodating the other enlarged diameter portion. The tube has a branch portion from which the first tube branches to the second tube.
The panel according to any one of claims 1 to 9, wherein the panel is provided with a protrusion that suppresses misalignment of the first tube extending direction and the second tube extending direction of the branch portion. Panel circuit. The panel circuit according to claim 10, wherein the branch portion has an enlarged diameter. The panel circuit according to claim 11, wherein the panel is provided with a recess for accommodating the expanded branch portion. The panel circuit according to any one of claims 1 to 12, wherein the panel comprises a resin containing any of ABS, PC, PVC, PS, PP, POM, PE, PMMA, SAN, or PA. The panel circuit according to any one of claims 1 to 13, wherein the panel is formed by injection molding. The panel circuit according to any one of claims 1 to 14, wherein the tube protrudes from the outer peripheral portion in a plurality of directions of the panel. The panel circuit according to any one of claims 1 to 15, wherein the tube protrudes 25 cm or more from the panel to the outside. The panel circuit according to any one of claims 1 to 16, wherein the panel has a flat area of 500 cm ^{2 or less.} The panel circuit according to any one of claims 1 to 17, wherein the body fluid treatment device is an ascites treatment device or a blood treatment device.

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