JP6458468B2 - Circuit panel - Google Patents

Description

  The present invention relates to a circuit panel.

  Conventionally, in a circuit panel (for example, a blood purification circuit panel used for hemodialysis therapy) in which a tube group is piped on a panel body, various techniques for making a cassette and a kit have been proposed (for example, Patent Document 1). reference).

  Patent Document 1 proposes a dialysis system including a cassette-type dialysis circuit in which a plurality of tubes are piped in advance.

  By the way, in recent years, circuit panels such as blood purification circuit panels are widely used not only for medical institutions but also for home use. For this reason, circuit boards are also required to have higher convenience in addition to cassettes and kits.

Japanese Patent No. 5349310

  The present invention has been made in view of such circumstances, and an object of the present invention is to simplify the structure by making a kit of a circuit panel and a cassette to prevent erroneous connection and to be easily used by individuals at home. It is to provide a circuit panel.

The present invention is grasped by the following composition.
(1) The present invention is a circuit panel, and is formed separately from a panel body having one or more through holes, a tube group disposed outside and / or inside the panel body, and the panel body. A connecting pipe for connecting the tubes to each other, and the connecting pipe has one or more claws extending in one direction and having a claw, and the claw is formed in the through hole. When inserted, the locking portion is locked in the through hole.
(2) According to the present invention, in the configuration of (1), the one or more through holes and the one or more claws are each configured as a pair, and each claw has a barbed portion as the locking portion at the tip thereof. It is characterized by having.
(3) According to the present invention, in the configuration of the above (1), each of the one or more through holes and the one or more claw is constituted by one, and the claw has two barbs as the engaging portion at the tip thereof. It is characterized by having.

  According to the present invention, it is possible to provide a circuit panel that can be easily used by an individual at home by preventing the erroneous connection by simplifying the structure by making the circuit panel into a kit or cassette.

It is a front view of the circuit panel which concerns on embodiment of this invention. It is a schematic diagram which shows the outline of a tube pump. It is sectional drawing in the AA of FIG. It is a disassembled perspective view of the tube connection structure shown by FIG. It is sectional drawing in the BB line of FIG. It is a figure explaining other embodiment, and is the figure drawn corresponding to FIG. It is sectional drawing in the CC line of FIG. It is a figure explaining the 1st modification of the latching structure which concerns on embodiment, and is the figure drawn corresponding to FIG. It is a figure explaining the 2nd modification of the latching structure which concerns on embodiment, and is the figure drawn corresponding to FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the accompanying drawings. Note that the same number is assigned to the same element throughout the description of the embodiment.

  FIG. 1 is a front view of a circuit panel according to the embodiment. FIG. 2 is a schematic diagram showing an outline of the tube pump.

  The circuit panel 10 shown in FIG. 1 first has a plate-like panel body 20 that is arranged perpendicular to the ground surface. The panel body 20 has a rectangular shape. For example, the horizontal width is slightly larger than the vertical width. The panel body 20 is formed by two sheets of resin materials (indicated by reference numerals 21 and 22 in FIG. 3) that are attached to each other. A tube group including various tubes is disposed outside and / or inside the panel body 20.

  A dialyzer 30 attached from one surface (front surface in the figure) of the panel is attached to the approximate center of the panel body 20. The dialyzer 30 has a cylindrical shape, and is attached to the panel body 20 with its longitudinal direction aligned with the vertical direction. The dialyzer 30 has a length that is slightly larger than the vertical width of the panel main body 20 and is attached at each end so as to protrude above the upper side of the panel main body 20 and below the lower side.

  Here, a schematic configuration of the dialyzer 30 will be described. Blood is introduced into the cylindrical dialyzer 30 whose both ends are sealed from the blood inflow tube portion 31 on the upper end surface, and the purified blood is discharged from the blood outflow tube portion 32 on the lower end surface. It is like that. Inside the dialyzer 30, a plurality of (8000 to 20000) thin tubes made of artificial membranes are arranged along the axial direction of the dialyzer 30, and blood flows into these thin tubes.

  The dialyzer 30 is adapted to receive dialysate from a dialysate inflow pipe section (flow pipe section) 34 on the lower end side, and a dialysate outflow pipe section (flow pipe) on the upper end side face. Part) 35 is allowed to flow out of the dialysate. The dialysate flows to the outside of the narrow tube in the dialyzer 30. As a result, the substance is exchanged between the blood and the dialysate through the membrane of the thin tube, and unnecessary substances move to the dialysate and are useful. Some substances move into the blood.

  In a region on one side (right side in the drawing) of the panel main body 20 from the dialyzer 30, for example, a notch 24 slightly cut out on the dialyzer 30 side is formed at the center of the side. A pump tube 61 is piped in the notch 24. In addition, a connecting pipe 50 and a connecting pipe 51 that are formed separately from the panel main body 20 are provided in each of the narrow portions of the upper and lower panel main bodies 20 of the notch 24.

  The connecting pipe 50 is locked to the narrow portion on the upper side of the panel body 20 and connects the external tube 601 piped on the upper side of the panel body 20 and the upper end of the pump tube 61. Further, the connecting pipe 51 is locked to the lower narrow portion of the panel body 20 and connects the external tube 602 piped to the lower side of the panel body 20 and the lower end of the pump tube 61. To do. In addition, the detailed structure of the tube connection structure by the connection pipe 50 and the connection pipe 51 is mentioned later.

  The pump tube 61 is a constituent member of the tube pump, and the fluid in the pump tube 61 can be sent in one direction by driving the pump tube. The blood or dialysate sent from the pump tube is sent into the dialyzer 30 via the blood inflow pipe 31 or the dialysate inflow pipe 34. FIG. 2 is a schematic diagram showing an outline of the tube pump. In FIG. 2, a rotating body 62 is disposed adjacent to the pump tube 61, and the rotating body 62 is provided with a plurality of (for example, four) rollers 63 along the circumferential direction thereof. As the rotating body 62 rotates, the rollers 63 move in one direction while sequentially pressing a part of the pump tube 61 in the longitudinal direction. For this reason, the fluid in the pump tube 61 is sent in the same direction by the negative pressure generated in the pump tube 61.

  Return to FIG. As shown in FIG. 1, a hollow flow path 70 extending from the upper side to the lower side of the panel body 20 is formed in a region between the pump tube 61 and the dialyzer 30 of the panel body 20. In the panel body 20 formed by bonding the two sheets 21 and 22, the hollow flow path 70 has a gap between the one sheet 21 and the other sheet 22 in a region where the hollow flow path 70 is formed. In this way, a concave portion (for example, a semicircular arc in cross section) is formed, and a concave portion (for example, a gap is formed between the other sheet 22 and the one sheet 21 in a region where the hollow flow path 70 is formed. It can be configured by forming a semicircular cross section.

  The hollow channel 70 is formed with a hollow chamber 71 having a relatively large area in the middle of the path, and one side of the panel body 20 from the hollow chamber 71 (for example, the upper side in FIG. 1). The other hollow flow path 70 'is formed. Thereby, the hollow flow paths 70 and 70 'can be configured as branch flow paths or merge flow paths by changing the flow of fluid.

  At each end of the hollow channels 70 and 70 ′ in the panel body 20, there are provided a connecting part 73, a connecting part 74, and a connecting part 75 made of a cylindrical member arranged coaxially with the hollow channels 70 and 70 ′. . The connecting portion 73, the connecting portion 74, and the connecting portion 75 are configured by insert parts that are sandwiched between the sheets 21 and 22 that constitute the panel body 20. End surfaces that are substantially flush with the upper and lower sides of the panel body 20 of the connecting portion 73, the connecting portion 74, and the connecting portion 75 have an inner diameter into which an external tube (not shown) is inserted.

  An opening 25 is formed adjacent to the dialyzer 30 in the region on the other side (left side in the drawing) of the panel main body 20 from the dialyzer 30. A connecting portion 76 and a connecting portion 77 are provided in each of the narrow portions of the panel body 20 above and below the opening 25. The connecting portion 76 and the connecting portion 77 are formed of insert parts that are sandwiched between the sheets 21 and 22 constituting the panel body 20.

  A pump tube 78 having one end inserted into the connecting portion 76 and the other end inserted into the connecting portion 77 is disposed in the opening 25 of the panel body 20. The external tube 603 is inserted into the end surface of the upper side of the panel body 20 of the connecting portion 76, and the external tube 604 is inserted into the end surface of the lower side of the panel body 20 of the connecting portion 77. The pump tube 78 is a constituent member of the tube pump similarly to the pump tube 61 described above, and the fluid in the pump tube 78 can be sent in one direction by driving the tube pump. Thereby, the blood or dialysate sent from the pump tube is sent into the dialyzer 30 via the blood inflow pipe 31 or the dialysate inflow pipe 34.

  Further, hollow flow paths 80, 90 extending from the upper side to the lower side of the panel main body 20 are arranged in parallel in a region outside the pump tube 78 of the panel main body 20. These hollow channels 80 and 90 have the same configuration.

  Here, the hollow flow path 80 is a straight flow path that is not a branch flow path or a merge flow path compared to the hollow flow path 70 described above, and is formed on each of the upper side and the lower side of the panel body 20. A tube 83 made of a resin material is piped between the connecting portion 81 and the connecting portion 82, and the tube 83 is sandwiched between the sheets 21 and 22 together with the connecting portion 81 and the connecting portion 82. An external tube 605 is inserted into the connecting portion 81, and an external tube 606 is inserted into the connecting portion 82.

  In the circuit panel 10 configured as described above, the tube group can be piped in advance to a predetermined position in the panel body 20, and the circuit panel can be made into a cassette or a kit. In addition, although it showed that the sheets 21 and 22 were formed with the resin material, for example, polyolefin, such as polyethylene or polypropylene, acrylonitrile-butadiene-styrene (ABS), styrene-butadiene copolymer (SBC), polystyrene, etc. It can be selected from styrene resin, polycarbonate, polymethyl methacrylate resin (PMMA), vinyl chloride resin, styrene elastomer, fluororesin, polysulfone and the like.

(Tube connecting structure with connecting pipe)
Then, the tube connection structure by the connection pipe 50 is demonstrated based on FIGS. 3 is a cross-sectional view taken along line AA in FIG. 1, FIG. 4 is an exploded perspective view of the tube connection structure shown in FIG. 3, and FIG. 5 is a cross-sectional view taken along line BB in FIG.

  As shown in FIG. 3, in this tube connection structure, one or more (in this example, a pair) of through holes 20a are provided in the panel body 20, and the pump tube 61 and the external tube 601 are connected to the through holes 20a. A connecting pipe 50 is attached. Although the shape of the through-hole 20a can be selected from various shapes, here, an example in which the rectangular through-hole 20a is provided in the panel body 20 is shown.

  As shown in FIG. 4, the connecting pipe 50 includes a cylindrical pipe main body 52, a small-diameter portion 53 that is connected to one end of the pipe main body 52 and has a smaller outer diameter than the pipe main body 52, and is unidirectional from the outer periphery of the pipe main body 52. 1 or more (in this example, a pair) of claws 54. The pair of claws 54 are provided corresponding to the pair of through holes 20a, and one barb 55 is formed at the tip of each claw 54 so as to protrude outward as a locking portion. The constituent material of the connecting pipe 50 can be appropriately selected from various resin materials, various metal materials, and the like.

  As shown in FIG. 5, a fitting hole 56 into which the outer diameter portion of the end portion of the pump tube 61 is fitted and bonded is provided inside the tube main body 52. The small diameter portion 53 is formed in an L shape that bends in a direction perpendicular to the axis of the tube main body 52, and communicates with the fitting hole 56 inside the tube main body 52 and the small diameter portion 53 and opens at the end surface of the small diameter portion 53. An L-shaped pipe line 57 is provided. The inner diameter portion of the external tube 601 is fitted and bonded to the outer periphery of the end portion of the small diameter portion 53.

  In this tube connection structure, when the pair of claws 54 are inserted into the pair of through holes 20a, the barb portion 55 is locked to the through hole 20a (more specifically, on the back side of the panel body 20). As a result, the pump tube 61 and the external tube 601 are connected by the connecting pipe 50 and attached to the panel body 20 via the connecting pipe 50. Although the detailed description of the tube connection structure using the connection pipe 51 (see FIG. 1) is omitted, the basic structure is the same as the tube connection structure using the connection pipe 50, and the pump tube 61 and the external tube 602 ( 1) is connected to the panel main body 20 via the connecting pipe 51.

(Effect of embodiment)
The effects of the embodiment described above will be described.
According to the present embodiment, the structure of the circuit panel 10 is simplified by a kit and a cassette, and the pump tube 61 and the external tubes 601 and 602 are prevented from being erroneously connected by the tube connection structure of the connection tubes 50 and 51. In addition, the circuit panel 10 that can be easily used by individuals at home can be provided.

(Other embodiments)
Next, another embodiment will be described with reference to FIGS.
FIG. 6 is a diagram for explaining another embodiment, and is a diagram corresponding to FIG. 4. 7 is a cross-sectional view taken along the line CC of FIG.

  In addition, the same code | symbol is attached | subjected to the element which is common in the connecting pipe 50 (refer FIGS. 3-5) mentioned above, and the overlapping description is abbreviate | omitted (the 1st modification of the latching structure mentioned later and 1st) The same applies to the two modifications).

  In the above-described connecting pipe 50 (see FIG. 4), the pump tube 61 arranged inside the panel body 20 and the external tube 601 arranged outside the panel body 20 are connected. Tubes arranged inside 20 can be connected to each other.

  For example, as shown in FIG. 6, the connecting pipe 50 </ b> A connects two tubes 61 </ b> A (for example, two tubes obtained by dividing the pump tube 61) linearly arranged inside the panel body 20. But you can. In this example, as shown in FIG. 7, fitting holes 56 are formed at both ends in the axial direction of the pipe main body 52 of the connecting pipe 50 </ b> A so that the end of the tube 61 </ b> A is fitted and bonded. A pipe line 57A that communicates the two fitting holes 56 is formed inside. According to the connecting pipe 50A configured in this manner, the two tubes 61A are connected by the connecting pipe 50A by inserting the claw 54 into the through hole 20a and locking the barb 55 to the through hole 20a. At the same time, it can be attached to the panel body 20 via the connecting pipe 50A.

(First modification of locking structure)
Next, a first modification of the connecting structure between the connecting pipe and the through hole will be described with reference to FIG.
FIG. 8 is a view for explaining a second modified example of the locking structure, and is a view drawn corresponding to FIG. 4.

  In the above-described connecting pipe 50 (see FIG. 3), the panel body 20 is provided with a pair of through holes 20a, and the pair of through holes 20a are engaged with the pair of claws 54. However, the number of through holes is arbitrary. It can be changed.

  For example, in the first modified example, as shown in FIG. 8, the panel body 20 is provided with one through hole 20 b that can lock both the pair of claws 54. When the pair of claws 54 are inserted into one through hole 20b, the barb portion 55 is locked into the through hole 20b (more specifically, on the back side of the panel body 20). According to the first modification, the connecting tube 50 can be locked to the panel body 20 simply by inserting a pair of claws 54 into one through hole 20b. The structure of the main body 20 can be simplified.

(Second modification of locking structure)
Next, the 2nd modification of the latching structure of a connection pipe and a through-hole is demonstrated based on FIG.
FIG. 9 is a view for explaining a second modified example of the locking structure, and is a view drawn corresponding to FIG. 4.

  In the connection pipe 50 (see FIG. 3) described above, the connection pipe 50 having the pair of claws 54 is illustrated, but the number of claws provided in the pipe main body 52 can be arbitrarily changed.

  For example, in the second modification example, as shown in FIG. 9, one through hole 20c and one claw 54C are provided, and a connecting pipe 50C in which two barb portions 55 are provided as locking portions at the tip of the claw 54C is used. Further, a configuration may be adopted in which a bush 100 made of a rubber material is provided in the through hole 20c, and the claw 54C can be easily inserted using elastic deformation of the bush 100. According to the second modification, since there is one claw 54C, the structure of the connecting pipe 50C can be simplified.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  For example, in the above-described embodiment, the circuit panel of the present invention is applied to a blood purification circuit panel used for hemodialysis therapy. However, the circuit panel of the present invention is limited to the blood purification circuit panel. Instead, the fluid flowing in the circuit may be blood, dialysate, pleural ascites, or the like.

DESCRIPTION OF SYMBOLS 10 Circuit panel 20 Panel main body 20a Through-hole 20b Through-hole 20c Through-hole 50 Connection pipe 50A Connection pipe 50C Connection pipe 54 Claw 54C Claw 55 Barbed part 61 Pump tube (tube)
61A Tube 601 External tube (tube)
602 External tube (tube)

Claims (3)

A blood purification circuit panel for home use ,
A plate-like body formed of a sheet made of a resin material, and a panel body having one or more through holes;
A group of tubes arranged outside and / or inside the panel body;
Formed separately from the panel body, and a connecting pipe that connects the tubes together,
The connecting pipe has one or more claws extending in one direction and having a claw, and when the claw is inserted into the through-hole, the claw part takes the panel body. A blood purification circuit panel, wherein the blood purification circuit panel is locked to the through hole so as to penetrate therethrough. A circuit panel,
A panel body having one or more through holes;
A group of tubes arranged outside and / or inside the panel body;
Formed separately from the panel body, and a connecting pipe that connects the tubes together,
The connecting pipe has a fitting hole into which an outer diameter part of an end of the tube is fitted,
The connecting pipe has one or more claws extending in one direction and having a claw having a locking part, and when the claw is inserted into the through hole, the locking part is formed in the through hole. is engaged,
Each of the one or more through holes and the one or more claw is configured in a pair, and each claw has one barb portion as the locking portion at a tip thereof.
The through hole has an elongated shape,
The claw has an elongated shape corresponding to the shape of the through hole,
The circuit panel according to claim 1, wherein a longitudinal direction of the through hole is along an axial direction of the fitting hole . The connecting pipe has a cylindrical pipe body and a small-diameter portion connected to one end of the pipe body and having a smaller outer diameter than the pipe body,
The small-diameter portion is provided with a pipe line communicating with the fitting hole, and has a bent portion that is bent in a direction perpendicular to the axis of the pipe main body.
The claw is provided at a position away from the bent portion.
The circuit panel according to claim 2.

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