JP2016022226A - Blood purification circuit panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blood purification circuit panel capable of constituting a blood purification circuit by preparing a panel in which a tube and the like are previously built in, and easily and reliably fitting a dialyzer to the panel.SOLUTION: A blood purification circuit panel 10 comprises: a panel 20; a cylindrical dialyzer 30 that is provided adjacent to one side 20A of the panel 20 and has a longitudinal direction disposed in parallel with the one side 20A; and a fixing band 41, one end of which is fixed to one surface of the one side of the panel 20 and, the other end of which wraps around the peripheral surface of the dialyzer 30 and is locked to the other surface of the one side of the panel 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blood purification circuit panel, and more particularly to a blood purification circuit panel including a dialyzer.

  A blood purification circuit including a dialyzer is disclosed in, for example, Patent Documents 1 and 2 below.

  The dialyzer incorporates a plurality of (8000 to 20000) thin tubes made of artificial membrane, and blood from the blood inflow tube flows out of the blood outflow tube through these thin tubes. In the dialyzer, the dialysate from the dialysate inflow pipe flows out of each narrow tube and then flows out from the dialysate outflow pipe. Thereby, substance exchange is performed between the blood and the dialysate through the membrane of the thin tube, unnecessary substances move to the dialysate, and useful substances move into the blood.

  For this reason, around the dialyzer, a pump that allows blood to flow into and out of the dialyzer, a pump that allows the dialysate to flow into and out of the dialyzer, a filter that filters the dialysate, and other necessary parts can be attached via tubes. It has become.

  However, each of these components is physically separated from the other components, and each component must be connected by a tube, which makes the work extremely complicated.

JP-A-5-161836 Japanese Patent No. 3831048

  The present invention has been made in view of such circumstances, and an object of the present invention is to prepare a panel in which a tube or the like is previously incorporated, and to easily and reliably attach a dialyzer to the panel, thereby providing a blood purification circuit. It is in providing the blood purification circuit panel which can comprise.

The present invention is grasped by the following composition.
(1) The blood purification circuit panel of the present invention includes a panel, a cylindrical dialyzer that is adjacent to one side of the panel and has a longitudinal direction arranged parallel to the one side, and one end on one surface of one side of the panel A fixing band that is fixed and that has the other end that wraps around the peripheral surface of the dialyzer and is engaged with the other surface of one side of the panel.
(2) In the blood purification circuit panel of the present invention, in the configuration of (1), a plurality of the fixing bands are provided along the longitudinal direction of the dialyzer, and the surface fixed to the panel at the one end of each fixing band; And the surface latched by the said panel of the said other end differs, It is characterized by the above-mentioned.
(3) In the blood purification circuit panel of the present invention, in the configuration of (1) or (2), the panel and the fixing band are made of a resin material, and the panel and the fixing band are integrally formed. Features.
(4) The blood purification circuit panel according to the present invention is characterized in that, in any one of the constitutions (1) to (3), the fixing band has a hinge portion between the one end and the other end.

  According to the blood purification circuit panel of the present invention, a panel in which a tube or the like is previously incorporated can be prepared, and a blood purification circuit can be configured by easily and reliably attaching a dialyzer to this panel.

It is a front view which shows the whole blood purification circuit panel of this invention. It is sectional drawing in the II-II line of FIG. It is the perspective view which shows the dialyzer vicinity, (a) is the figure which latched the fixed band, (b) The figure which unlocked the fixed band. (A), (b) is sectional drawing in the IV (a) -IV (a) line | wire and IV (b) -IV (b) line | wire of FIG.3 (b). (A), (b) is sectional drawing in the V (a) -V (a) line | wire and V (b) -V (b) line | wire of Fig.3 (a). It is the figure which expanded and showed the 1st connection part. (A) is sectional drawing in the VII (a) -VII (a) line of FIG. 6, (b) is sectional drawing in the VII (b) -VII (b) line of FIG. It is a schematic diagram which shows the outline of a tube pump. It is sectional drawing in the IX-IX line of 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.

(Embodiment 1)
FIG. 1 is a front view showing Embodiment 1 of a blood purification circuit panel according to the present invention. 2 is a cross-sectional view taken along line II-II in FIG.

  The blood purification circuit panel 10 shown in FIG. 1 first has a plate-like panel 20 arranged perpendicular to the ground surface. The panel 20 has a rectangular shape. For example, the horizontal width is slightly larger than the vertical width.

  As will be apparent from the description below, this panel 20 is formed by two sheets of resin material (indicated by reference numerals 21 and 22 in FIG. 2) that are attached to each other. A hollow channel is formed at the interface so that a tube or a connecting pipe (insert) is sandwiched between them.

  A dialyzer 30 is attached adjacent to, for example, the left side 20A of the panel 20 in the drawing. The dialyzer 30 has a cylindrical shape and is arranged so that its longitudinal direction is parallel to the one side 20A. The dialyzer 30 has a length that is slightly larger than the vertical width of the panel 20 and is attached so as to protrude above the upper side of the panel 20 and below the lower side at each end.

  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) artificial tubes (indicated by reference numeral 33 in FIG. 2) are disposed along the axial direction of the dialyzer 30. Is supposed to flow in.

  In addition, the dialyzer 30 is configured such that the dialysate is introduced from the dialysate inflow pipe 34 on the side surface on the lower end side, and the dialysate is output from the dialysate outflow pipe 35 on the side surface on the upper end side. It has become. The dialysate flows outside the narrow tube 33 in the dialyzer 30, whereby the substance is exchanged between blood and dialysate through the membrane of the thin tube 33, and unnecessary substances move to the dialysate. Useful substances are supposed to move into the blood. Both the dialysate inflow pipe 34 and the dialysate outflow pipe 35 protrude from the dialyzer 30 toward the panel 20 side.

  The dialyzer 30 configured as described above is attached to the panel 20 by fixing bands 41A and 41B formed on one side 20A of the panel 20. The fixed bands 41A and 41B are arranged at intervals along the longitudinal direction of the dialyzer 30, the fixed band 41A is arranged in the vicinity of the dialysate outflow pipe 35, and the fixed band 41B is in the vicinity of the dialysate inflow pipe 34. Is arranged. Here, as shown in FIG. 2, the fixing bands 41 </ b> A and 41 </ b> B are integrally formed (molded) with the panel 20 including the sheets 21 and 22.

  As shown in FIG. 3A, the fixed bands 41 </ b> A and 41 </ b> B have one end fixed to one surface of one side 20 </ b> A of the panel 20, and the other end wrapping around the peripheral surface of the dialyzer 30. The other surface is locked. That is, one end of the fixing band 41A is fixed to the front surface of the side 20A of the panel 20 in the drawing, and the other end of the fixing band 41A goes around the peripheral surface of the dialyzer 30 and is locked to the back surface of the side 20A of the panel 20 in the drawing. One end of the fixing band 41B is fixed to the back surface of the side 20A of the panel 20 in the drawing, and the other end wraps around the peripheral surface of the dialyzer 30 and is locked to the surface of the side 20A of the panel 20 in the drawing. It has come to be. Thus, the dialyzer 30 can be reliably attached to the panel 20 by making the surface fixed to the panel 20 at one end of the fixing bands 41A and 41B different from the surface locked to the panel 20 at the other end. Will be able to.

  FIG. 3B is a diagram illustrating a state in which the other ends of the fixing bands 41 </ b> A and 41 </ b> B are removed from the panel 20. For example, in the case of the fixed band 41A, it has a pair of hinge parts 42 juxtaposed substantially at the center between one end and the other end. This hinge part 42 can be comprised by, for example, forming a notch in the width direction in the part. As shown in FIG. 3A, the fixed band 41 can be bent into a U shape by the hinge portion 42, and the dialyzer 30 can be held by the fixed band 41. The fixing band 41A has arcuate surfaces 43 and 44 having substantially the same curvature as the outer peripheral surface of the dialyzer 30 between one end and the hinge portion 42 and between the hinge portion 42 and the other end. Thus, the dialyzer 30 can be held in close contact. Further, the other end of the fixed band 41A is bent at a substantially right angle, and a claw 45 is formed at the tip thereof. The claw 45 can be locked to a slit (engagement hole) 26 formed in the panel 20 when the fixing band 41A is bent in a U shape and the dialyzer 30 is sandwiched. The fixed band 41B has the same configuration as the fixed band 41A except that the fixed surface with the panel 20 is different.

  4A and 4B are cross-sectional views taken along lines IV (a) -IV (a) and IV (b) -IV (b) in FIG. 3B, respectively. As shown in FIG. 4A, the fixing band 41A moves the other end on which the claw 45 is formed as indicated by an arrow in the drawing after the dialyzer 30 is brought into contact with the arcuate surface 43. Thus, the hinge portion 42 can be bent and the dialyzer 30 can be clamped. As shown in FIG. 4B, the fixing band 41B also has the other end (the end where the claw 45 is formed) indicated by an arrow in the drawing after the dialyzer 30 is brought into contact with the arcuate surface 43. By being moved to the position, the hinge portion 42 can be bent and the dialyzer 30 can be held.

  5A and 5B are cross-sectional views taken along lines V (a) -V (a) and V (b) -V (b) in FIG. 3A, respectively. As shown in FIG. 5A, the fixed band 41 </ b> A has an arcuate surface 44 in contact with the dialyzer 30 and the other end where the claw 45 is formed is locked to the slit 26 of the panel 20. It becomes like this. As shown in FIG. 5B, the fixed band 41 </ b> B also has the arcuate surface 44 abutted against the dialyzer 30 and the other end where the claw 45 is formed is locked to the slit 26 of the panel 20. It becomes like this. Thereby, the dialyzer 30 can be reliably attached to the panel 20 via the fixing bands 41A and 41B.

Note that the fixing bands 41A and 41B may be configured to attach a friction material (not shown) to at least the surfaces of the arcuate surfaces 43 and 44 that are in contact with the dialyzer 30. In such a case, the dialyzer 30 sandwiched between the fixed bands 41A and 41B can be prevented from moving in the axial direction by the friction material.
Further, the size of the panel 20 may be set so that the upper side and the lower side of the panel 20 are positioned close to the dialysate inflow pipe 34 and the dialysate outflow pipe 35 of the dialyzer 30, respectively. Even in this case, it is possible to avoid displacement of the dialyzer 30 in the axial direction.

  Returning to FIG. 1, a notch 24 that is notched toward the dialyzer 30 is formed at the center of the side facing the side 20 </ b> A to which the dialyzer 30 is attached. A first connecting portion 50 and a second connecting portion 51 made of a resin material are formed in each of the narrow portions of the upper and lower panels 20 of the notch 24. The 1st connection part 50 and the 2nd connection part 51 consist of a cylindrical member, are clamped by the sheet | seats 21 and 22 which comprise the panel 20 (refer FIG. 2), and are arrange | positioned coaxially. As shown in FIG. 6 which is an enlarged view, the first connecting part 50 is configured such that an external tube 601 is inserted on the upper side of the panel 20 and a pump tube 61 is inserted on the notch part 24 side. It has become so. 7A is a cross-sectional view taken along line VII (a) -VII (a) in FIG. 6, and FIG. 7B is a cross-sectional view taken along line VIII (b) -VIII (b) in FIG. As shown in FIG. 7B, the first connecting portion 50 has a small outer diameter r on the external tube 601 side and an inner diameter into which the external tube 601 can be inserted, and on the pump tube 61 side, It has a large outer diameter R and an inner diameter into which the pump tube 61 can be inserted. And the 1st connection part 50 becomes a shape which has the constriction 50A in the approximate center of the axial direction. In addition, the peripheral side surface of the 1st connection part 50 may have a taper from one end to the other end even if it does not have the constriction 50A. The 1st connection part 50 which consists of such a shape has the effect which can control the displacement of an axial direction by being pinched | interposed into the sheet | seats 21 and 22. FIG. The second connecting portion 51 has substantially the same configuration as the first connecting portion 50, and is arranged such that the large diameter side is on the notch portion 24 side of the panel 20 and the small diameter side is on the lower side of the panel 20. Yes. An external tube 602 (see FIG. 1) is inserted into the end surface of the lower side of the panel 20 of the second connecting portion 51.

  Thereby, as shown in FIG. 1, the pump tube 61 can be arranged in the notch 24 of the panel 20. 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. 8 is a schematic diagram showing an outline of a tube pump. In FIG. 8, 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.

  Returning to FIG. 1, a hollow flow path 70 extending from the upper side to the lower side of the panel 20 is formed in a region adjacent to the pump tube 61 of the panel 20. As shown in FIG. 9, which is a cross-sectional view taken along the line IX-IX in FIG. 1, the hollow flow path 70 is a hollow flow of one sheet 21 in the panel 20 formed by bonding two sheets 21 and 22. A recess (for example, a semicircular cross section) is formed in the region where the path 70 is formed so as to have a gap between the other sheet 22 and one of the other sheets 22 is formed in the region where the hollow flow path 70 is formed. It can be configured by forming a recessed portion (for example, a semicircular cross section) so as to have a gap with the sheet 21.

  The hollow channel 70 is formed with a hollow chamber 71 having a relatively large area in the middle of the path, and the other side from the hollow chamber 71 to one side of the panel 20 (for example, the upper side in FIG. 1). The 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.

  A third connecting portion 73 (see FIG. 2) and a fourth connecting portion made of a cylindrical member arranged coaxially with the hollow flow paths 70 and 70 ′ are provided at the respective ends of the hollow flow paths 70 and 70 ′ on the panel 20 surface. The portion 74 (see FIG. 2) and the fifth connecting portion 75 are disposed so as to be sandwiched between the sheets 21 and 22 (see FIG. 2). End faces that are substantially flush with the upper and lower sides of the panel 20 of the third connecting part 73, the fourth connecting part 74, and the fifth connecting part 75 have an inner diameter into which an external tube (not shown) is inserted. It has become.

  Further, as shown in FIG. 1, an opening 25 is formed in a region adjacent to the hollow flow path 70 of the panel 20. A sixth connecting portion 76 and a seventh connecting portion 77 are formed in each of the narrow portions of the upper and lower panels 20 of the opening 25. The sixth connecting portion 76 and the seventh connecting portion 77 have substantially the same structure as the second connecting portion 51, and are sandwiched between the sheets 21 and 22 constituting the panel 20 (see FIG. 2). ).

  In the opening 25 of the panel 20, a pump tube 78 having one end inserted into the sixth connecting portion 76 and the other end inserted into the seventh connecting portion 77 is disposed. Further, the external tube 603 is inserted into the end surface of the upper side of the panel 20 of the sixth connecting portion 76, and the external tube 604 is inserted into the end surface of the lower side of the panel 20 of the seventh connecting portion 77. Yes. 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, in a region adjacent to the pump tube 78 of the panel 20, hollow flow paths 80 and 90 extending from the upper side to the lower side of the panel 20 are arranged in parallel. 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 as compared with the hollow flow path 70 described above, and is an eighth connection formed on the upper side and the lower side of the panel 20. Each of the part 81 and the ninth connecting part 82 has a structure substantially similar to that of the first connecting part 50 having a constriction at the center. The eighth connecting portion 81 and the ninth connecting portion 82 are connected by a tube 83 made of a resin material. The tube 83 is connected to the eighth connecting portion 81 and the ninth connecting portion 82 by the sheets 21 and 22. It is to be pinched. Thereby, the inner diameter of the hollow flow path 80 is matched with the diameters of the end portions having the larger outer diameters of the eighth connection portion 81 and the ninth connection portion 82, and is larger than the inner diameter of the hollow flow path 70. An external tube 605 is inserted into the eighth connecting portion 81, and an external tube 606 is inserted into the ninth connecting portion 82.

The thus configured blood purification circuit panel 10 can configure (mount) a blood purification circuit including a dialyzer 30, a tube pump and the like on the panel 20 using an external tube.
In addition, although the sheet | seats 21 and 22 and each connection part showed forming with the resin material, polyolefin, such as polyethylene or a polypropylene, acrylonitrile butadiene styrene (ABS), styrene butadiene copolymer (SBC), for example ), Styrene resin such as polystyrene, polycarbonate, polymethyl methacrylate resin (PMMA), vinyl chloride resin, styrene elastomer, fluororesin, polysulfone, and the like.

  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-described embodiments. Further, it is apparent from the description of the scope of claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.

10 Blood purification circuit panel 20 Panel 21, 22 Sheet 24 Notch 25 Opening 26 Slit (engagement hole)
30 Dializer 31 Blood inflow tube portion 32 Blood outflow tube portion 33 Narrow tube 34 Dialysate inflow tube 35 Dialysate outflow tube 41 (41A, 41B) Fixing band 42 Hinge portion 43, 44 Arc-shaped surface 45 Claw 50 First connection portion 50A Constriction 51 Second connection portion 61 Pump tube 62 Rotating body 63 Roller 70 Hollow flow path 70 ′ Hollow flow path 71 Hollow chamber 73 Third connection portion 74 Fourth connection portion 75 Fifth connection portion 76 Sixth connection portion 77 Seventh connection Part 78 pump tube 80 hollow flow path 81 eighth connection part 82 ninth connection part 90 hollow flow path

Claims (4)

A blood purification circuit panel,
A panel,
A cylindrical dialyzer that is adjacent to one side of the panel and has a longitudinal direction arranged parallel to the one side;
One end is fixed to one surface of one side of the panel, and the other end wraps around the peripheral surface of the dialyzer and is fixed to the other surface of the one side of the panel,
A blood purification circuit panel comprising: A plurality of the fixing bands are provided along the longitudinal direction of the dialyzer,
The blood purification circuit panel according to claim 1, wherein a surface fixed to the panel at the one end of each fixing band and a surface locked to the panel at the other end are different. The panel and the fixing band are made of a resin material,
The blood purification circuit panel according to claim 1 or 2, wherein the panel and the fixing band are integrally formed. The blood purification circuit panel according to any one of claims 1 to 3, wherein the fixing band has a hinge portion between the one end and the other end.

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