JP2004057284A - Peritoneal dialysis apparatus and control process therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a peritoneal dialysis apparatus capable of automating the dialysis treatment by a patient himself/herself with a very clear and understandable operability for the treatment under an optimal condition. <P>SOLUTION: The dialysis apparatus comprises a dialysis solution circuit including at least one dialysis solution container filled with a dialysis solution and at least one drain container for collecting the dialysis solution, a solution feeding means for feeding the dialysis solution with the dialysis solution container as the starting point or with the drain container as the termination point, an input means for inputting conditions for dialysis such as the injection/draining quantity(mL) and the injection/draining speed (mL/min), and a display means for displaying/informing the inputted conditions for dialysis. The dialysis solution is fed to the patient side by the solution feeding means, and the drain is collected for the dialysis treatment in the peritoneal dialysis apparatus. The injection/draining time (minutes) are calculated based on the injection/draining quantity (mL) and the injection/draining speed (mL/min), and if it is determined that the injection/draining is performed for more than two times of the calculated injection/draining time (minutes), an alarm is sounded for indicating that injection/draining is abnormal. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a peritoneal dialysis device that can be performed by a patient at home (at home) or the like, and a control method thereof.
[0002]
[Prior art]
The peritoneal dialysis method (continuous diaperial dialysis, hereinafter also referred to as “CAPD”) is easy to reintegrate into a society because a patient can exchange dialysis fluid containers (bags) at home or at work, and is attracting much attention. ing.
[0003]
In this CAPD, a catheter tube (peritoneal catheter) is indwelled in a patient's abdominal cavity, a transfer tube is connected to the outer end of the catheter tube, and a bag tube of a dialysate bag (injection bag) containing a dialysate is inserted into the tube. The dialysate in the bag is injected into the peritoneal cavity through each tube, and after dialysis for a predetermined time, the dialysate drainage in the peritoneal cavity is collected in the drainage bag through each tube. is there. The connections between the tubes are made aseptically by fitting male and female connectors attached to the ends of both tubes, respectively.
[0004]
By the way, in this CAPD, the dialysate is injected into the peritoneum by placing the dialysate bag at a position about 1 m higher than the patient's abdomen and dropping the dialysate from the dialysate bag into the peritoneum by the gravity drop. It is being transported. For collecting the dialysate drain from the peritoneum, the drain bag is placed at a position about 1 m lower than the patient's abdomen, and the dialysate is transferred from the peritoneum to the drain bag by its head.
[0005]
However, in such a method of injecting and draining a dialysate, for example, when a patient performs peritoneal dialysis while sleeping, the patient is laid on a bed at a height of about 70 to 100 cm from the floor, and It is necessary to set the dialysate bag at a position about 1 m higher than the patient. For this reason, the height of the entire apparatus is as large as about 2 m, which is not only difficult to handle and transport, but also may cause the sleeping patient to fall over due to turning over. Further, there is a disadvantage that the bed position (height) of the patient cannot be freely selected in order to secure a head required for drainage.
[0006]
In order to compensate for these drawbacks, there has been proposed a peritoneal dialysis apparatus that automates infusion and drainage and is not restricted by the height of the place where dialysate and drainage bags are installed. For example, Japanese Patent No. 3113887 proposes a peritoneal dialysis apparatus in which a valve is opened and closed by a valve actuator to switch the flow path of a disposable cassette at the time of selection. Further, a disposable cassette in which a pump section (diaphragm) for feeding peritoneal dialysate and a heating section are integrally formed is proposed in Japanese Patent Application Laid-Open No. H11-347115. This cassette is heated from both sides, and is configured so that the heated peritoneal dialysate is fed into the patient's peritoneal cavity by two pump units (diaphragms).
[0007]
[Problems to be solved by the invention]
However, in order to perform peritoneal dialysis at home using such a peritoneal dialysis machine, the patient himself / herself remembers all procedures after receiving sufficient training for using the peritoneal dialysis machine. However, there is a considerable burden on the patient because it must be operated without fail.
[0008]
Further, for example, even if a very small trouble occurs in the operation procedure, there is a problem that the trouble cannot be promptly dealt with. Also, when performing peritoneal dialysis during bedtime, the dialysis circuit tubing may be temporarily blocked due to turning over, etc., and it may not be possible to perform infusion / drainage at a specified infusion / drainage rate. I was However, there is a case where the blockage of the tube is released by turning over again and the normal filling / draining speed is restored, and there is a problem that a sufficient sleep cannot be obtained if an alarm is generated every time the tube is temporarily blocked. .
[0009]
Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to enable dialysis treatment to be automated by the patient himself, and also to have operability extremely clear and easy to understand, such as turning over. A peritoneal dialysis device that can perform dialysis treatment under optimal conditions without generating an unnecessary alarm even when injection / drainage cannot be performed at a predetermined injection / drainage rate due to temporary blockage of tubes, etc. To provide.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the object, the present invention provides a dialysate circuit including at least one dialysate container filled with dialysate, and at least one drainage container for collecting dialysate. A dialysate container as a starting point or a drainage container as an end point, a liquid sending means for sending a dialysate, an input means for inputting dialysis conditions such as a volume of injection (mL), and an input dialysis condition A dialysate which supplies dialysate to the patient side by means of a liquid sending means and collects the drainage to perform dialysis. The injection time (min) is calculated based on the injection speed (mL / min), and the calculated injection time (minute) exceeds a predetermined amount (for example, twice the calculated injection time (minute)). If it is determined that liquid injection is being performed, an alarm will be generated as a liquid injection failure. Sign. Further, the injection time (minute) is characterized by (injection amount (mL) / injection speed (mL / min) + preparation time (minute) until injection start (for example, about 2 minutes)).
[0011]
The present invention also provides a dialysate circuit including at least one dialysate container filled with dialysate, at least one drainage container for collecting dialysate, and a dialysate container as a starting point, or A liquid container having the liquid container as an end point, a liquid feeding means for feeding a dialysate, an input means for inputting dialysis conditions such as a volume of injection (mL), and a display means for displaying the input dialysis conditions, This is a peritoneal dialysis device that performs dialysis by supplying dialysate to the patient side by a liquid sending means and collecting the drainage, based on a drainage amount (mL) and a drainage rate (mL / min). When the drainage time (minutes) is calculated and it is determined that the drainage is performed for a predetermined amount of the calculated drainage time (minutes) (for example, twice the calculated drainage time (minutes)). It is characterized in that an alarm is issued as a drainage failure. Further, the drainage time (minute) is characterized in that the drainage amount (mL) / the drainage rate (mL / min) + the preparation time (minute) until the start of drainage (for example, about 2 minutes).
[0012]
The present invention also provides a dialysate circuit including at least one dialysate container filled with dialysate, at least one drainage container for collecting dialysate, and a dialysate container as a starting point, or a drainage fluid. The apparatus has a feeding means for feeding a dialysate, an input means for inputting a dialysis condition such as a volume of injection (mL), and a display means for displaying the input dialysis condition with the container as an end point. This is a method for controlling a peritoneal dialysis device that performs dialysis by supplying dialysate to the patient side by means of a liquid and collecting the drainage, and the injection volume (mL) and injection rate (mL / min) are controlled. Calculating a liquid injection time (minute) based on the calculated value; determining that liquid injection is being performed for a predetermined amount of the calculated liquid injection time (minute); And generating an alarm. The injection time (minute) is characterized by (injection amount (mL) / injection speed (mL / min) + preparation time (minute) until injection start).
[0013]
The present invention also provides a dialysate circuit including at least one dialysate container filled with dialysate, at least one drainage container for collecting dialysate, and a dialysate container as a starting point, or a drainage fluid. The apparatus has a feeding means for feeding a dialysate, an input means for inputting a dialysis condition such as a volume of injection (mL), and a display means for displaying the input dialysis condition with the container as an end point. A method for controlling a peritoneal dialysis device that performs dialysis by supplying dialysate to a patient side by means of a liquid and collecting the drainage, wherein the drainage volume (mL) and the drainage rate (mL / min) are controlled. Calculating a drainage time (minutes) based on the calculated drainage time (min); determining that drainage has been performed for a predetermined amount of the calculated drainage time (minutes); And generating an alarm. The drainage time (minutes) is characterized in that the drainage amount (mL) / the drainage rate (mL / min) + the preparation time (minutes) until the start of drainage.
[0014]
The present invention also provides a dialysate circuit including at least one dialysate container filled with dialysate, at least one drainage container for collecting dialysate, and a dialysate container as a starting point, or a drainage fluid. The apparatus has a feeding means for feeding a dialysate, an input means for inputting a dialysis condition such as a volume of injection (mL), and a display means for displaying the input dialysis condition with the container as an end point. A storage medium storing a program code of a control method of a peritoneal dialysis device that performs dialysis by supplying a dialysate to a patient side by a liquid means and collecting a drainage of the dialysate. The program code of the step for calculating the injection time (minute) based on the injection speed (mL / min) and the determination that injection is performed exceeding a predetermined amount of the calculated injection time (minute) Program code of the step to be performed and the judgment result Based characterized by comprising the program code of the step of generating an alarm as a liquid injection defective. The injection time (minutes) is characterized by (injection amount (mL) / injection rate (mL / min) + preparation time (minutes) until the start of injection).
[0015]
The present invention also provides a dialysate circuit including at least one dialysate container filled with dialysate, at least one drainage container for collecting dialysate, and a dialysate container as a starting point, or a drainage fluid. The apparatus has a feeding means for feeding a dialysate, an input means for inputting a dialysis condition such as a volume of injection (mL), and a display means for displaying the input dialysis condition with the container as an end point. A storage medium storing a program code of a control method of a peritoneal dialysis device for performing dialysis by supplying a dialysate to a patient side by a liquid means and collecting the drainage, the drainage volume (mL), The program code of the step of calculating the drainage time (minute) based on the drainage speed (mL / min), and it is determined that drainage has been performed beyond a predetermined amount of the calculated drainage time (minute) Program code of the step to be performed and the judgment result Based characterized by comprising the program code of the step of generating an alarm as a drainage defective. The drainage time (minutes) is characterized in that the drainage amount (mL) / the drainage rate (mL / min) + the preparation time (minutes) until the start of drainage.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a peritoneal dialysis device of the present invention will be described in detail based on a preferred embodiment shown in the accompanying drawings.
[0017]
First, FIG. 1 is an external perspective view showing a peritoneal dialysis apparatus of the present invention together with a disposable cassette (peritoneal dialysis circuit) 8, and FIG. 2 is a schematic view showing the entire configuration.
[0018]
In both figures, the peritoneal dialysis device 1 includes a dialysis device main body 2 and a cassette 8 for the peritoneal dialysis device which is detachably attached to the dialysis device main body 2.
[0019]
In FIG. 1, the dialysis apparatus main body 2 has a cassette mounting section 21 having an opening 21a shown by a two-dot chain line for mounting the cassette 8 from the front, and a state in which the cassette mounting section 21 is closed and opened. The lid member 22 is rotated with the grip portion 22a at the positions shown by solid lines and broken lines, a display portion 23, an operation portion 24a for performing a treatment start operation, and an operation for performing a treatment stop operation. Part 24b.
[0020]
The shapes and colors of the operation unit 24a and the operation unit 24b are different from each other so that they can be easily distinguished from each other. The start operation unit (start button) 24a has one convex portion and the stop operation unit ( The stop button 24b is formed with two convex portions.
[0021]
The display unit 23 includes, for example, a touch panel having a liquid crystal (LCD) panel or the like. The display unit 23 displays various types of information required for dialysis by pressing the touch panel, and sends operation instructions to the apparatus from the speaker 400a indicated by broken lines. Operability and convenience are ensured by performing with an audio guide.
[0022]
A sensor 16a for detecting that the lid member 22 is closed as indicated by the solid line, a sensor 16b for detecting that the cassette 8 has been loaded, and the presence of air bubbles in the connection tube 85 connected to the cassette 8. Is disposed at the position shown in the figure.
[0023]
The cover of the main body 2 is provided with a hook portion 2a so as to be housed, and the tube is hooked on the hook portion 2a to ensure liquid supply.
[0024]
On the other hand, the dialysis apparatus main body 2 uses a main base 200 and a sub-base 201 shown by broken lines as mounting bases, and a resin cover shown in the drawing is provided, and the main base 200 and the sub-base 201 are connected to each other by one. It is made of an aluminum metal plate with a thickness of about 2 mm, and a large hole is formed everywhere to reduce the weight. A lightweight resin cover is fixed to these bases. Further, a memory card 204 having a storage capacity of, for example, 100 megabytes or more is provided so as to be insertable from the back of the apparatus into a card reader 203 shown by a broken line. It is configured so that specifications can be changed quickly. Further, the patient data is recorded on the memory card 204 so that the patient can be handled individually.
[0025]
Further, a shielding plate 202 is provided on the right side of the cassette mounting portion 21 shown by the two-dot chain line so as to be movable in the direction of the arrow shown by the broken line to prevent mechanical interference with the connection tube 85 of the cassette 8. By doing so, the cassette 8 can be set at the loading position.
[0026]
On the other hand, the cassette 8 has a cassette body 81 detachable from the cassette mounting portion 21 of the dialysis apparatus body 2, a lower body frame 811 formed continuously from the cassette body 81, and a gap 86 from the lower body frame 811. And an upper main body frame 812 provided so as to be opposed to the upper main body frame 812.
[0027]
Further, a diaphragm 87 for feeding a liquid, a heating unit 83, and a flow path switching unit are integrally formed on the cassette body 81 as shown in the drawing, and the periphery of the diaphragm 87 is surrounded by a flange member 815. Have been.
[0028]
Next, in FIG. 2, the peritoneal dialysis apparatus 1 includes a dialysate circuit unit 3. The dialysate circuit unit 3 supplies dialysate to be injected (infused) into the peritoneum (peritoneal cavity) of the patient K. A plurality of dialysate bags (dialysate containers) 4 to store (store), an additional dialysate bag 5 to store dialysates having different concentrations, and a drainage to collect dialysate drained from the peritoneum of the patient K It is prepared to connect a tank (drainage container) 6 and a dialysis catheter (catheter tube) 7 placed in the peritoneum of the patient K.
[0029]
Here, the dialysate circuit unit 3 includes an infusion tube circuit (line) 31, an additional infusion tube circuit (line) 32, an infusion / drainage tube circuit (line) 33, and a drainage tube circuit (line). ) 34. Further, the dialysate circuit unit 3 includes a switching cassette circuit 82 provided in the cassette body 81 of the cassette 8, a heating cassette circuit 83, and a bypass circuit (patient side tube circuit) 84. The circuit 82 includes an injection circuit 821, an additional injection circuit 822, an injection / drain circuit 823, and a drain circuit 824.
[0030]
In addition, in the external perspective view showing the flow path switching unit and the clamper (clamp) 240 of the cassette 8 in FIG. 3, one end of the liquid injection circuit 821, one end of the additional liquid injection circuit 822, and other parts of the liquid injection / drainage circuit 823 are shown. The connection tubes 85a, 85b, 85c and 85d are connected to one end and the other end of the drainage circuit 824.
[0031]
In FIG. 2, a plurality of branch tube circuits 35 are branched and connected to one end side of the infusion tube circuit 31, and one end of each branch tube circuit 35 is connected to the dialysate bag 4. The other end of the tube circuit 31 is connected to one end of the liquid injection circuit 821 via the connection tube 85a.
[0032]
One end of the additional tube circuit 32 is connected to the additional dialysate bag 5, and the other end of the additional tube circuit 32 is connected to one end of the additional injection circuit 822 via the connection tube 85b.
[0033]
One end of the liquid injection / drainage tube circuit 33 is connected to the other end of the liquid injection / drainage circuit 823 via a connection tube 85c, and the other end of the liquid injection / drainage tube circuit 33 is dialyzed. The catheter 7 is connected via a transfer tube set 36. One end of the drain tube circuit 34 is connected to the other end of the drain circuit 824 via a connection tube 85d, and the other end of the drain tube circuit 34 is connected to the drain tank 6.
[0034]
The infusion tube circuit 31, the additional infusion tube circuit 32, the infusion / drainage tube circuit 33, and the drainage tube circuit 34, which are connected to the switching cassette circuit 82 forming the flow path switching section, convert the cassette 8 into a dialysis device. When attached to the main body 2, it is located on the front or front side surface of the dialysis device main body 2.
[0035]
Each branch tube circuit 35, additional liquid supply tube circuit 32, liquid supply / drainage tube circuit 33, and liquid discharge tube circuit 34 are each provided with a clamp (flow path opening / closing means) 37 for opening and closing a flow path. ing.
[0036]
Next, in the three-dimensional exploded view of the cassette 8 in FIG. 4, the components already described in this drawing are denoted by the same reference numerals and the description thereof will be omitted, and between the two divided heating cassette circuits 831 and 832 When the cassette main body 81 is mounted on the cassette mounting portion 21 of the dialysis apparatus main body 2, the heating means 9 is provided on both sides (upper and lower surfaces) of each of the divided heating cassette circuits 831 and 832. (Heater), and each of the divided heating cassette circuits 831 and 832 is configured to be heated while being sandwiched by the corresponding heater.
[0037]
The cassette main body 81 is provided with the switching cassette circuit 82 shown in FIG. 1, and the switching cassette circuit 82 includes the liquid injection circuit 821, the additional liquid injection circuit 822, and the liquid injection / drainage shown in FIG. It comprises a circuit 823 and a drain circuit 824. The other end of the additional injection circuit 822 communicates with the middle of the injection circuit 821, and one end of the drain circuit 824 communicates near the other end of the injection circuit 821.
[0038]
Further, when the cassette main body 81 is mounted on the cassette mounting portion 21 of the dialysis apparatus main body 2, the switching cassette circuit 82 switches between the liquid injection circuit state and the drainage circuit state due to the blockage by the clamper 240 in FIG. It is configured to be able to.
[0039]
Here, the state of the liquid injection circuit means that the liquid injection circuit 821 (or the additional liquid injection circuit 822) and the liquid injection / drainage circuit 823 communicate with each other, so that the dialysate bag 4 (or the additional dialysate bag 5) and the dialysis liquid are discharged. It refers to a state in which the catheter 7 is in communication, in other words, a state for injecting the dialysate into the peritoneum of the patient K (a state in which the dialysate can be injected).
[0040]
The drainage circuit state is a state in which the infusion / drainage circuit 823 and the drainage circuit 824 communicate with each other, whereby the dialysis catheter 7 and the drainage tank 6 communicate with each other, in other words, dialysis from the peritoneum of the patient K. It refers to a state for draining the liquid (a state where the liquid can be drained). Further, the cassette body 81 is provided with a heating cassette circuit 83 shown in FIG. The heating cassette circuit 83 includes two sheet-like divided heating cassette circuits 831 and 832 that are arranged to face each other.
[0041]
One end of the lower divided heating cassette circuit 831 communicates with the other end of the liquid injection circuit 821, and the other end of the lower divided heating cassette circuit 831 is connected to the upper divided heating cassette via a connection pipe 833. It is in communication with one end of a circuit 832. The other end of the upper divided heating cassette circuit 832 communicates with one end of the liquid injection / drainage circuit 823.
[0042]
Therefore, the dialysate flows sequentially through the lower divided heating cassette circuit 831 and the upper divided heating cassette circuit 832 in this order.
[0043]
In the present invention, the dialysis solution may be configured to diverge and flow into the lower divided heating cassette circuit 831 and the upper divided heating cassette circuit 832, and then merge.
[0044]
The flow path of each of the divided heating cassette circuits 831 and 832 has a meandering shape as shown in the plan view of the cassette 8 in FIG. 5 and the rear view of the cassette 8 in FIG. May be. As described above, by forming the meandering shape or the spiral shape, the flow path of each of the divided cassette circuits 831 and 832 becomes long, and the dialysate can be reliably heated.
[0045]
In addition, the cassette body 81 is provided with a diaphragm pump 87 that is kept in an airtight state in a pump chamber described later in order to pump dialysis fluid by performing a pumping operation by contraction and expansion. It is connected in the middle of the circuit 821.
[0046]
Then, the diaphragm pump 87 is configured to be contracted when the diaphragm pump 87 is housed in a closed state by the flange member 815 when pressurized, and the diaphragm pump 87 is expanded when the pressure is reduced.
[0047]
The cassette body 81 is provided with the bypass circuit 84 as described above. One end of the bypass circuit 84 is connected to the upstream side of the heating cassette circuit 83, in the present embodiment, in the middle of the liquid injection circuit 821, and the other end of the bypass circuit 84 is connected to the downstream side of the heating cassette circuit 83, this embodiment. In the form, it is connected in the middle of the liquid injection / drainage circuit 823. The bypass circuit 84 connects the upstream side and the downstream side of the heating cassette circuit 83 to form a circulation circuit for cooling the dialysate.
[0048]
Further, in order to forcibly cool the dialysate in the bypass circuit 84, a forced cooling means such as a Peltier element may be provided to quickly and surely cool the dialysate.
[0049]
The switching cassette circuit 82, the heating cassette circuit 83, the bypass circuit 84, and the diaphragm pump 87 are arranged substantially in a plane. Thereby, the thickness of the cassette 8 can be further reduced.
[0050]
When the cassette main body 81 is mounted on the cassette mounting portion 21 of the dialysis apparatus main body 2, the outlet side (downstream side) of the heating cassette circuit 83 can be switched between a final liquid injection circuit state and a return circuit state. It is configured. Here, the final liquid injection circuit state refers to a state in which the outlet side of the heating cassette circuit 83 communicates with the liquid injection / drainage circuit 823 and does not communicate with the bypass circuit 84. Further, the return circuit state refers to a state in which the outlet side of the heating cassette circuit 83 communicates with the bypass circuit 84 and does not communicate with the liquid injection / drainage circuit 823.
[0051]
Further, as shown in a three-dimensional exploded view of the cassette 8 in FIG. 4, first to eighth support protrusions 881 to 888 forming a flow path switching portion are provided at positions of the lower main body frame 811 corresponding to the switching cassette circuit 82. Is formed. The first support protrusion 881 supports the vicinity of one end of the liquid injection circuit 821, the second support protrusion 882 supports the additional liquid injection circuit 822, and the third support protrusion 883 includes The fourth support projection 884 supports between the diaphragm pump 87 and one end of the bypass circuit 84 in the liquid circuit 821, and supports between the diaphragm pump 87 and one end of the heating cassette circuit 83 in the liquid injection circuit 821. Is what you do. Similarly, the fifth support projection 885 is for supporting the drain circuit 824, and the sixth support projection 886 is for connecting the other end of the heating cassette circuit 83 in the injection / drain circuit 823 and the bypass circuit 84. The seventh support protrusion 887 supports the vicinity of the other end of the liquid injection / drain circuit 823, and the eighth support protrusion 888 supports the bypass circuit 84. Is what you do.
[0052]
The switching cassette circuit 82, the bypass circuit 84, and the diaphragm pump 87 are integrally formed by blow molding. As a result, joining with separate components can be reduced, the quality of the cassette 8 can be improved, and the cost can be reduced.
[0053]
Each of the divided heating cassette circuits 831 and 832 of the heating cassette circuit 83 is formed by sheet molding. This simplifies the manufacture of the divided heating cassette circuits 831 and 832 and reduces the cost.
[0054]
The switching cassette circuit 82, the bypass circuit 84, and the diaphragm pump 87 are joined to the divided heating cassette circuits 831 and 832 by high-frequency welding (high-frequency welding) and bonding.
[0055]
Here, in order to form the divided heating cassette circuits 831 and 832 by sheet molding, for example, two resin sheets are overlapped, and these are fused in a predetermined pattern. In addition, the part which was not fused forms a flow path.
[0056]
The constituent materials of the switching cassette circuit 82, the heating cassette circuit 83, the bypass circuit 84, and the diaphragm pump 87 are soft resins such as polyethylene, polypropylene, ethylene-propylene copolymer, and ethylene-vinyl acetate copolymer, respectively. Polyolefin such as coalesced (EVA), polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, poly- (4-methylpentene-1), ionomer, acrylic resin, polyethylene terephthalate (PET), polybutylene terephthalate (PBT) ) Etc., various thermoplastic elastomers such as polyester, styrene, polyolefin, polyvinyl chloride, polyurethane, polyester, polyamide etc., silicone resin, polyurethane, etc., or mainly these. Polymers, blends, polymer alloys and the like, can be used singly or in combination of two or more of these (e.g., a laminate of two or more layers).
[0057]
In addition, positioning holes 8a, 8a are formed in the cassette main body 81, and positioning is performed by the positioning pins of the sub base 201. Further, an opening 81b which forms a part of the flow path switching portion is formed opposite to the first to eighth support projections so that the clamper can be closed by entering the opening 81b. ing.
[0058]
On the other hand, as shown in the heater configuration diagram of FIG. 5, a heating unit 9 for heating the heating cassette circuit 83 of the cassette 8 is provided in the dialysis apparatus main body 2. It has a lower heater 91 in the form of a layer (layer), an upper heater 92 in the form of a plate (layer), and an intermediate heater 93 in the form of a plate (layer).
[0059]
Here, the lower surface heater 91 heats the lower surface of the lower divided heating cassette circuit 831 from below through an aluminum plate 94a as a heat transfer member, and the upper surface heater 92 heats the lower surface. The upper surface of the divided heating cassette circuit 832 is heated from above through an aluminum plate 94d as a heat transfer member. The intermediate surface heater 93 is located in the gap 86, heats the upper surface of the lower divided heating cassette circuit 831 from above through an aluminum plate 94b as a heat transfer member, and heats the upper divided heating cassette circuit 831 upward. The lower surface of the warm cassette circuit 832 is heated from below through an aluminum plate 94c as a heat transfer member.
[0060]
Thus, the dialysate in the lower divided heating cassette circuit 831 is heated while being sandwiched between the lower heater 91 and the intermediate heater 93, and the dialysis solution in the upper divided heating cassette circuit 832 is heated. The liquid is heated while being sandwiched between the upper surface heater 92 and the intermediate surface heater 93. Therefore, the heating efficiency of the dialysis fluid inside the heating cassette circuit 83 by the heating means 9 is improved, which is advantageous in reducing the size and weight of the dialysis device body 2 and the cassette 8.
[0061]
The clamping means 11 shown in FIG. 3 switches the switching cassette circuit 82 of the cassette 8 between one of the liquid injection circuit state and the liquid discharge circuit state, and sets the outlet side of the heating cassette circuit 83 to the final liquid injection circuit state. Or the state of the drain circuit, or assists the pumping operation of the diaphragm pump 87.
[0062]
That is, the first to eighth clamps 111 to 118 indicated by arrows are provided in the dialysis apparatus main body 2, and the first clamp 111 cooperates with the first support protrusion 881 to form the liquid injection circuit 821. One end is clamped so that the flow path is closed. The second clamp 112 cooperates with the second support protrusion 882 to clamp the additional liquid injection circuit 822 so that the flow path is closed. The third clamp 113, in cooperation with the third support protrusion 883, clamps one end of the diaphragm pump 87 and one end of the bypass circuit 84 in the liquid injection circuit 821 so that the flow path is closed. The fourth clamp (pumping control clamp) 114 cooperates with the fourth support protrusion 884 to clamp the gap between one end of the diaphragm pump 87 and one end of the heating cassette circuit 83 in the liquid injection circuit 821 so that the flow path is closed. .
[0063]
Similarly, the fifth clamp 115 cooperates with the fifth support protrusion 885 to clamp the drain circuit 824 so that the flow path is closed. The sixth clamp 116 clamps in cooperation with the sixth support protrusion 886 so as to close the flow path between the other end of the heating cassette circuit 83 and the other end of the bypass circuit 84 in the liquid injection / drainage circuit 823. I do. The seventh clamp 117 cooperates with the seventh support projection 887 to clamp the vicinity of the other end of the liquid injection / drainage circuit 823 so that the flow path is closed. Then, the eighth clamp 118 cooperates with the eighth support protrusion 888 to clamp the bypass circuit 84 so that the flow path is closed. Accordingly, when the switching cassette circuit 82 is switched to the liquid injection circuit state, the first clamp 111 (or the second clamp 112), the fourth clamp (pumping control clamp) 114, the sixth clamp 116, and the seventh clamp 117 are respectively operated. And the second clamp 112 (or the first clamp 111), the fifth clamp 115, and the eighth clamp 118 are each switched to the clamp state. When the inside of the chamber 814 is pressurized by the pumping operation means 10, the fourth clamp 114 is switched to the unclamped state, and the third clamp 113 is switched to the clamped state. Further, when the inside of the chamber 814 is depressurized by the pumping operation means 10, the fourth clamp 114 is switched to the clamp state and the third clamp 113 is switched to the unclamped state. As a result, the dialysate can be sent from the dialysate bag 4 (or the additional dialysate bag 5) toward the dialysis catheter 7, that is, the dialysate can be injected, and the peritoneal cavity of the dialysate shown in FIG. It can be in the state of sending liquid inside.
[0064]
When the switching cassette circuit 82 is switched to the drain circuit state and switched, the seventh clamp 117 and the eighth clamp 118 are respectively switched to the unclamped state, and the first clamp 111, the second clamp 112, and the fourth clamp By switching the 114 and the sixth clamp 116 to the clamp state, respectively, the waste liquid collecting state shown in FIG. 6B can be set.
[0065]
When the pressure in the pump chamber is reduced by the pumping operation means, the third clamp 113 is switched to the unclamped state, and the fifth clamp 115 is switched to the clamped state. Furthermore, when the inside of the chamber 814 is pressurized by the pumping operation means, the third clamp 113 is switched to the clamp state, and the fifth clamp 115 is switched to the unclamped state, so that dialysis is performed from the dialysis catheter 7 toward the drainage tank 6. The liquid can be drained.
[0066]
The diaphragm pump 87, the third clamp 113, the fourth clamp 114, the fifth clamp 115, and the pumping operation means constitute a liquid sending means for sending dialysate.
[0067]
Further, when the switching cassette circuit 82 is in the liquid injection circuit state and the outlet side of the heating cassette circuit 83 is in the final liquid injection circuit state, the seventh clamp 117 is in the unclamped state, and the eighth clamp 118 is in the clamped state. Has become.
[0068]
When switching the outlet side of the heating cassette circuit 83 to the return circuit state, the first clamp 111, the second clamp 112, and the seventh clamp 117 are switched to the clamp state, and the eighth clamp 118 is switched to the unclamped state. Thus, the dialysate flows through the bypass circuit 84 toward the diaphragm pump 87 without flowing from the outlet side of the heating cassette circuit 83 toward the dialysis catheter 7. That is, the dialysate circulates between the bypass circuit 87 and the heating cassette circuit 83.
[0069]
The seventh clamp 117 and the eighth clamp 118 constitute an injection return circuit switching means for switching the outlet side of the heating cassette circuit 83 between the final injection circuit state and the return circuit state.
[0070]
Here, when draining the dialysate, the drainage is collected in the drainage tank 6 via the bypass circuit 84. Thereby, the configuration of the flow path can be simplified.
[0071]
As described above, by providing the cassette body 81 with the switching cassette circuit 82, the heating cassette circuit 83, the bypass circuit 84, and the diaphragm pump 87, the size and weight of the peritoneal dialysis apparatus 1 can be reduced. Thus, handling such as transportation of the peritoneal dialysis apparatus 1 is facilitated, and smooth medical treatment can be performed.
[0072]
In particular, since the dialysate flowing through each of the divided heating cassette circuits 831 and 832 is heated while being sandwiched between the corresponding heaters, the heating efficiency of the dialysate is improved, and thereby the peritoneal dialysis apparatus is improved. 1 can be made smaller and lighter.
[0073]
On the other hand, as shown in FIG. 2, the peritoneal dialysis device 1 includes various sensors for controlling the temperature of the dialysate and the like.
[0074]
That is, an outlet for measuring (detecting) the temperature (outlet liquid temperature) of the dialysate flowing on the outlet side (downstream side) of the heating cassette circuit 83 on the downstream side of the heating cassette circuit 83 of the dialysis apparatus main body 2. A temperature sensor 12A for liquid temperature is installed, and the temperature (inlet liquid temperature) of the dialysate flowing on the inlet side (upstream side) of the heating cassette circuit 83 is measured (detected) on the upstream side of the heating cassette circuit 83. An inlet liquid temperature sensor 12B is provided.
[0075]
Here, as the outlet liquid temperature sensor 12A and the inlet liquid temperature sensor 12B, it is preferable to use thermopile type infrared sensors (non-contact type temperature sensors) each having an extremely fast response speed. Thus, the temperatures of the surface heaters 91, 92, and 93 can be controlled with high accuracy.
[0076]
Further, as shown in FIG. 5, each of the surface heaters 91, 92 and 93 is provided with a heater temperature sensor 13 such as a thermistor for measuring (detecting) the temperature. Furthermore, the dialysis device main body 2 is provided with a bubble sensor 14 for detecting bubbles on the inlet side and the outlet side of the switching cassette circuit 82, respectively. The peritoneal permeation apparatus 1 includes an occlusion sensor that detects occlusion of a circuit, and various other sensors (various sensors 16).
[0077]
Further, as shown in the block diagram of FIG. 7, the peritoneal dialysis apparatus 1 includes a control system (control means) 15 for performing various controls such as infusion and drainage of a dialysate.
[0078]
That is, the control system 15 includes a CPU (central control unit) 150 and a storage unit 152. The CPU 150 includes a clamp control unit 153 for controlling the plurality of clamps 111 to 118, a plurality of surface heaters 91 and 92. , 93, and a pumping operation control unit 155 for controlling the pumping operation means 10 are electrically connected to each other. The CPU 150 also includes an outlet liquid temperature sensor 12A, an inlet liquid temperature sensor 12B, a heater temperature sensor 13, a bubble sensor 14, a display unit 23, and operation units 24a and 24b, respectively. Connected. The CPU 150 is electrically connected to a power supply circuit 156, a battery circuit 157, a sound generation circuit 400, and a cassette loading control unit 301 for controlling the cassette loading means 300. The display unit 23 is electrically connected to a card reading device 203 in which the memory card can be loaded. Further, the storage medium reading section 170 reads a storage medium 170a storing various control programs, such as a flexible disk and a CD-ROM. Further, the external communication unit 171 enables mutual communication with a portable terminal (not shown), a medical site, and the like via a LAN, the Internet, wireless communication such as infrared rays, or the like.
[0079]
When the temperature measured by the outlet liquid temperature sensor 12A becomes equal to or higher than a predetermined temperature (39 ° C. in the present embodiment), the control system 15 causes the clamp controller 153 to perform the seventh clamp 117. Is controlled to switch to the clamp state, the eighth clamp 118 is controlled to switch to the unclamped state, and the heater control unit 154 switches to the OFF state in which the driving of the plurality of surface heaters 91, 92, and 93 is stopped.
[0080]
The outputs (output values) of the surface heaters 91, 92, and 93 are selected based on the dialysate temperature control flow and the dialysate temperature. That is, the control system 15 sets the temperature of the dialysate to be injected to a predetermined value based on the temperature measured by the outlet liquid temperature sensor 12A and the temperature measured by the inlet liquid temperature sensor 12B. The outputs (drives) of the plurality of surface heaters 91, 92, and 93 are controlled so as to fall within the temperature range described above. Then, the first clamp 111 (or the second clamp 112), the fourth clamp 114, the sixth clamp 116, and the seventh clamp 117 are controlled by the clamp control unit 153 to switch to the unclamped state, and the second clamp 112 ( Alternatively, the first clamp 111), the fifth clamp 115, and the eighth clamp 118 are controlled to switch to the clamp state. Thereby, the switching cassette circuit 82 can be switched to the liquid injection circuit state. Further, the heater control unit 154 controls so as to supply electric power (output) to the plurality of surface heaters 91, 92, and 93. Thereby, the heating step of heating the dialysate flowing through the heating cassette circuit 83, in other words, the flow of controlling the temperature of the dialysate enters the preheating step.
[0081]
When the time T1 elapses after the supply of the electric power to the plurality of surface heaters 91, 92, 93 has started, the preheating step ends. When this preheating step is completed, the pumping operation control section 155 controls the pumping operation means 10 to alternately repeat pressurization and depressurization in the pump chamber. Further, the clamp control unit 153 controls the fourth clamp 114 to alternately switch between the clamp state and the unclamped state in accordance with the pressurization and depressurization in the chamber 814, and controls the third clamp 113 to perform the clamp. The switching between the state and the unclamped state is alternately repeated according to the pressurization and the depressurization in the chamber 814. Thus, the diaphragm pump 87 is pumped (contracted and expanded) to send dialysate from the dialysate bag 4 toward the dialysis catheter 7 and inject the dialysate.
[0082]
When the preheating step is completed, the flow for controlling the temperature of the dialysate enters the initial heating step. When the initial heating step is completed, the flow for controlling the temperature of the dialysate usually enters the heating step. In the normal heating step, the output control of the plurality of surface heaters 91, 92, and 93 is performed when the temperature measured by the outlet liquid temperature sensor 12A is less than 33 ° C. Is output to the plurality of surface heaters 91, 92, 93.
[0083]
On the other hand, when the temperature measured by the outlet liquid temperature sensor 12A is 33 ° C. or more and less than 39 ° C., the output value of the heater by the PI control is output to the plurality of surface heaters 91, 92, and 93.
[0084]
Thereby, the output control of the plurality of surface heaters 91, 92, 93 can be performed with high accuracy. In the initial heating step or the normal heating step, when the temperature measured by the outlet liquid temperature sensor 12A becomes 39 ° C. or higher, the clamp controller 153 controls the seventh clamp 117 to switch to the clamp state. At the same time, the eighth clamp 118 is controlled to switch to the unclamped state. Further, the supply of power to the plurality of surface heaters 91, 92, and 93 is stopped by the heater control unit 154, in other words, the plurality of surface heaters 91, 92, and 93 are turned off. As a result, the outlet side of the heating cassette circuit 83 can be switched to the return circuit state, and the dialysate flows from the heating cassette circuit 83 toward the bypass circuit 84 without flowing toward the dialysis catheter 7, The flow returns to the upstream side of the heating cassette circuit 83 via the bypass circuit 84, and circulates between the bypass circuit 84 and the heating cassette circuit 83, during which the temperature falls (is cooled). That is, the flow for controlling the heating of the dialysate shifts to the cooling step (step 12). Therefore, a dialysate having a temperature significantly higher than the body temperature of the patient K (a temperature of 39 ° C. or higher) is not injected into the patient K, and safe dialysis treatment can be performed.
[0085]
When the temperature measured by the outlet liquid temperature temperature sensor 12A becomes less than 39 ° C., the clamp controller 153 controls the seventh clamp 117 to switch to the unclamped state, and controls the eighth clamp 118. To switch to the clamped state. Further, the plurality of surface heaters 91, 92, 93 are turned on. As a result, the outlet side of the heating cassette circuit 83 can be returned to the final liquid injection circuit state, and the process returns to the initial heating step or the normal heating step. When a predetermined amount of dialysate is injected (injected) into the peritoneum of the patient K, the injection of dialysate is completed.
[0086]
After the completion of the dialysate injection, the clamp controller 154 controls the seventh clamp 117 and the eighth clamp 118 to switch to the unclamped state, and controls the fourth clamp 114 and the sixth clamp 116 to perform the clamp. Switch to state. Thereby, the switching cassette circuit 82 can be switched to the drain circuit state.
[0087]
Then, the pumping operation control unit 155 controls the pumping operation means 10 to alternately reduce and increase the pressure of the chamber 814. Further, the clamp controller controls the third clamp 113 to alternately switch the unclamped state and the clamped state in accordance with the depressurization and pressurization of −814 inside the chamber, and controls the fifth clamp 115 to perform the clamp. The switching between the state and the unclamped state is alternately repeated in accordance with the pressure reduction and pressure increase in the chamber 814. As a result, the diaphragm pump 87 can be pumped to send dialysate in the peritoneum from the dialysis catheter 7 to the drainage tank 6 and drain the dialysate.
[0088]
Next, FIGS. 8 to 13 are views showing display screens which sequentially change on the display unit 23 shown in FIG.
[0089]
In the block diagrams of FIGS. 7 and 8, when the power of the device 2 is turned on and the operation unit 24a is pressed, an initial screen 500 of the device manufacturer name is displayed, and a nurse and a sheep (character image) serving as a guide are displayed. The screen moves to the color display screen 501, and the storage unit 152 is initialized by moving the arrow on the screen 502, and at the same time, a voice guide says, "Let's carry out the treatment in a bright and clean place. Is generated from the speaker 400a in electronic voice. Subsequently, the screen is automatically switched to a screen 503. On this screen, the treatment pattern, initial drainage volume, injection volume, intraperitoneal storage time, number of cycles, final injection volume, final concentration change, dialysis time, scheduled dialysis end time, total dialysate volume, etc. The parameters required for peritoneal dialysis are displayed as previous data. If this is the case, the user presses the “next” touch key 506 and proceeds to the screen of FIG.
[0090]
The screen 507 in FIG. 9 is displayed together with a voice guide to set the cassette 8 in the mounting portion of the apparatus. In addition, on the screen 507, the touch key 508 of “setting confirmation” appears at the same time. When the touch key 508 is pressed, the screen moves to a screen 523 in FIG. On the screen 509 after the screen 507, an audio guide is generated, "This is a procedure for inserting my home poko" composed of the cassette 8 and the piping shown in FIG. 6, and before and after this, images of the nurse and the cassette are displayed. They are displayed interchangeably. Therefore, when the patient touches the “next” touch key 510, the screen changes to a screen 511, and the text “Please close all clamps” and a still image in color with the operation procedure are shown together with the voice guide. When the “next” touch key 512 on this screen 511 is pressed, a screen is displayed on the screen 513 so as to open the cover member 22 sideways, voice guidance is performed, and the screen is automatically switched to the screen 514. On this screen 514, a state in which the cassette 8 is inserted from above the lid member of the apparatus is displayed as a moving image in color. Subsequently, a screen for closing the lid member after the cassette is loaded on the screen 515 is displayed together with a voice guide, and the screen changes to a screen 516 in FIG. 10 and the apparatus waits until the cassette is moved to a state where the cassette is sandwiched by the three-layer heaters. Subsequently, a moving image is displayed together with a voice guide on the screen 517 so as to set the connection tube to the hook 2a of the main body, and the screen moves to a screen 518.
[0091]
On this screen 518, "A dialysis bag is connected to Poko Set (trademark of Terumo Corporation) 8" is displayed together with a voice guide, and when "Next" is touched, the screen changes to a screen 519 and shows an image of the connection state. At the same time, an audio guide is generated. Thereafter, the screens 520, 521, and 522 are automatically switched to instruct a necessary connection operation. The screen of FIG. 11 is a screen that is sequentially displayed when the user touches the “setting confirmation” touch key 508 in the screens 507 and 508 of FIG. 9, and a message for confirming the connection is displayed on the screen 523 together with a voice guide. Then, by touching the “next” touch key 524 after the connection is completed, the standby screen display of the screen 525 is performed, and after the display of the unclamping and other display after the connection on the screen 526 and the voice guidance are provided. The user touches the "SET" touch key on the screen 528 to prepare for dialysis, and presses the operation unit 24a to start dialysis. Also, on this screen 528, when touching the touch key 530 of the "up and down arrow", the items 1 to 5 on the screen are highlighted and touching the return touch key enables confirmation. Further, on the screen 526, an item requiring explanation by the patient can be selected with the touch key 530.
[0092]
On the other hand, when the user touches the “change” touch key 504 on the screen 503 in FIG. 8, the screen is changed to the screen 531 in FIG. 12, and the user touches the “up / down arrow” touch key 533 to set the dialogue with the screens 534 to 541. do. Since the display colors of these screens 534 to 541 are monochromatic and the background color does not change, it is known that the patient is changing the settings.
[0093]
Abnormal conditions such as drainage line occlusion, injection line occlusion, poor injection, poor drainage, insufficient drainage, additional injection line occlusion, low battery voltage, low outside air temperature, peritoneal line occlusion, bubble detection, power failure, etc. Are stored in the storage unit 152 in advance. When an abnormality is detected by the bubble sensor 14 and the various sensors 16, the display automatically shifts to a screen displaying an abnormal state, and sequentially displays on the screen whether any abnormality has occurred, and sequentially asks the user in question form. (Patient) can confirm the response. It should be noted that detection of a liquid injection line blockage, liquid injection failure, and alarm are performed as follows.
[0094]
The detection of the injection line blockage and the injection failure will be described with reference to the flowchart of FIG. The treatment pattern, the storage time, the number of cycles, the dialysis time, the injection volume (mL), and the injection rate (mL / min) preset by the manufacturer or the like set and input on the setting screens 531 to 541 (step S1) ( Normally, the user is not allowed to make settings on the setting screen, but the user may be able to make settings on the setting screen). When it is determined that the injection is performed for a predetermined amount of the injected injection time (minutes) (for example, twice the calculated injection time (minutes)) (step S3), the display unit indicates a poor injection. At the same time, a warning is issued (step S4-2). The injection time (minute) is the injection amount (mL) / injection rate (mL / minute) + preparation time (minute) until the start of injection (for example, about 2 minutes). When the liquid has returned to the predetermined liquid injection amount (mL) or when liquid injection is being performed at a predetermined speed, a normal operation screen display by the character is performed on the display unit 23 (step S4-1).
[0095]
The detection of the drainage line blockage and the drainage failure will be described with reference to the flowchart of FIG. The treatment pattern, the storage time, the number of cycles, the dialysis time, the injection volume (mL) and the injection rate (mL / min) preset by the manufacturer or the like (normally the user Is set on the setting screen, but the user may be able to set on the setting screen), and the drainage amount (mL) is calculated based on dialysis conditions. Drainage calculated with drainage speed (mL / min) set in advance by a manufacturer or the like (usually the user cannot set it on the setting screen, but the user may set it on the setting screen) The drainage time (minute) is calculated based on the volume (mL) (step S5), and exceeds a predetermined amount (for example, twice the calculated drainage time (minute)) of the calculated drainage time (minute). When it is determined that the liquid is drained (step S6), a display of the drainage failure is displayed on the display unit 23, and a warning is issued by voice guidance (step S7-2). The drainage time (minute) is the drainage amount (mL) / the drainage rate (mL / min) + the preparation time (minute) until the start of the drainage (for example, about 2 minutes). In addition, when the drainage amount returns to the predetermined drainage amount (mL) or when the drainage is being performed at the predetermined speed, the display unit 23 displays a screen of a normal operation by the character (step S7-1). The calculation of the drainage time (minutes) may be performed in step S2 together with the calculation of the liquid injection time.
[0096]
The program for the mode for detecting the liquid injection failure and the program for the mode for detecting the liquid discharge failure are stored in the program storage section 152 or are stored in the storage medium 170a, read by the storage medium reading section 170, and controlled by the CPU 150. You.
[0097]
FIG. 13 shows an example of an abnormal state of dialysis when the drainage line is blocked. In order to notify an abnormal state, the screen 550 to 554 is displayed as a still image or a moving image including characters along with a voice guide on the screens 550 to 554, and the background color is displayed as a conspicuous predetermined color such as yellow or orange shown by hatching in the figure. This informs the patient that the patient is in an abnormal state.
[0098]
On the screen 550, the words "Press the stop switch to stop the alarm sound" are displayed on the alarm (alarm) / instruction screen, and at the same time, a voice message "Press the stop switch to stop the alarm sound" is displayed. Done.
[0099]
When the operation unit (stop button) 24b is pressed according to this instruction, a screen of a question format is displayed as shown in a screen 551, and one of the occluded portions (patterns) stored in the storage unit 152 in advance is used for peritoneal dialysis. Indicated by an arrow 551a and a circular dot mark 551b of a predetermined color (red) together with the schematic diagram of the line, a question as to whether or not “the pink clamp is closed” is made by voice along with character display.
[0100]
When "No" is clicked on the screen 551, the screen shifts to a screen 552. When "Yes" is clicked, a screen 555 is displayed, and a corresponding procedure is instructed by characters and voice "Please open the pink clamp". The procedure according to this instruction is executed, and when "next" is clicked, the screen shifts to a screen 552.
[0101]
If "No" is clicked on the screen 552, the screen shifts to the screen 554. If "Yes" is clicked, a screen 555 is displayed, and the corresponding procedure includes the text "Please correct the tube crushing and twisting" and voice. Is indicated by When the procedure according to this instruction is executed and “Next” is clicked, the screen shifts to a screen 554.
[0102]
The screen 554 is instructed by a character and a voice “Press the start switch.
[0103]
In this way, the contents and location of the abnormality are assumed in advance and stored in the storage unit 152 so that they can be sequentially checked.
[0104]
In each screen, the operation can be returned to the original operation by pressing the operation unit 24a.
[0105]
In addition to the clogging of the drainage line shown in FIG. 13, this abnormal state may be caused by clogging of the injection line during treatment and priming, poor injection, defective and insufficient drainage, air bubbles, and additional injection during treatment and priming. There are liquid line blockage, battery backup due to power failure, and outside air temperature drop.When these abnormalities occur, they all become background colors in conspicuous colors such as yellow and orange, and at the same time announce the abnormalities with a voice guide, which may cause trouble. Even if they occur, they can be dealt with easily, so they can be used with confidence.
[0106]
【The invention's effect】
As described above, according to the present invention, dialysis treatment can be automated by the patient himself, and the operability is extremely clear and easy to understand, and treatment can be performed under optimal conditions. Therefore, even if a trouble such as a temporary blockage of the peritoneal line occurs, an alarm is not generated, so that a peritoneal dialysis apparatus capable of performing dialysis treatment under optimal conditions can be provided.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a peritoneal dialysis apparatus of the present invention together with a cassette 8;
FIG. 2 is a diagram schematically showing an embodiment of a peritoneal dialysis device of the present invention.
FIG. 3 is an external perspective view showing a flow path switching unit and a clamper 240 of the cassette 8;
FIG. 4 is a three-dimensional exploded view of the cassette.
FIG. 5 is a diagram illustrating a relationship between a heating circuit of the cassette 8 and a heater.
FIG. 6A is a schematic diagram showing a state in which a dialysate is fed into an abdominal cavity, and FIG. 6B is a schematic diagram showing a state in which drainage is fed.
FIG. 7 is a block diagram of a dialysis device main body.
FIG. 8 is a diagram showing a display screen that changes sequentially on the display unit 23.
FIG. 9 is a diagram showing a display screen that sequentially changes on the display unit 23.
FIG. 10 is a diagram showing a display screen that changes sequentially on a display unit 23.
FIG. 11 is a diagram showing a display screen that sequentially changes on the display unit 23.
FIG. 12 is a diagram showing a display screen that sequentially changes on the display unit 23.
FIG. 13 is a diagram showing a display screen that sequentially changes on the display unit 23;
FIG. 14 is a diagram showing a flow chart of detection of defective injection / drainage.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Dialysis apparatus, 2 ... Equipment main body, 21 ... Cassette mounting part, 22 ... Cover member, 23 ... Display part, 24a, 4b ... Operation part, 3 ... Dialysis fluid unit, 31 ... Infusion tube circuit, 32 ... Infusion Tube circuit, 3 ... / drain tube circuit, 34 ... drain tube circuit, 35 ... branch tube circuit, 36 ... transfer tube set, 37 ... cleanme, 4 ... dialysate bag, 5 ... additional dialysate bag, 6 ... drain Liquid tank, 7: dialysis catheter, 8: cassette, 81: cassette body, 9: heating means, 10: pumping operation means, 101: air circuit, 102: branch air circuit, 103: branch air circuit, 104: air pressure generation Apparatus, 105: Vacuum pressure generator, 14: Bubble sensor, 15: Control system, 16: Various sensors, 500-555 screen

Claims (12)

At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point A dialysis solution, a dialysis solution, a dialysis condition such as an injection amount (mL), and a display device for displaying the inputted dialysis condition. A peritoneal dialysis device that supplies dialysis fluid to the patient side and performs dialysis by collecting the drainage fluid,
An injection time (minute) is calculated based on the injection amount (mL) and the injection rate (mL / min), and injection is performed when the calculated injection time (minute) exceeds a predetermined amount. A peritoneal dialysis device characterized in that when it is determined that the injection has been performed, an alarm is issued as a poor injection. The said injection | pouring time (minute) is this injection | pouring amount (mL) / the injection | pouring rate (mL / min) + preparation time (minute) until injection start, The Claim 1 characterized by the above-mentioned. Peritoneal dialysis machine. At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point A dialysis solution, a dialysis solution, a dialysis condition such as an injection amount (mL), and a display device for displaying the inputted dialysis condition. A peritoneal dialysis device that supplies dialysis fluid to the patient side and performs dialysis by collecting the drainage fluid,
The drainage time (minutes) is calculated based on the drainage amount (mL) and the drainage speed (mL / min) calculated based on the input dialysis conditions, and the calculated drainage time (mL) is calculated. A peritoneal dialysis apparatus characterized in that when it is determined that drainage has been performed in excess of a predetermined amount, an alarm is issued as a drainage failure. 4. The drainage time (minutes) according to claim 3, wherein the drainage amount (mL) / the drainage speed (mL / min) + the preparation time (minute) until the start of drainage. Peritoneal dialysis machine. At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point Means for feeding dialysis fluid, input means for inputting dialysis conditions such as injection volume (mL) and injection rate (mL / min), and display means for displaying the input dialysis conditions. A method for controlling a peritoneal dialysis device that performs dialysis by supplying a dialysate to the patient side by the liquid sending means and collecting the drainage,
Calculating an injection time (minute) based on the injection amount (mL) and the injection speed (mL / min);
Judging that the infusion has been performed for more than a predetermined amount of the calculated infusion time (minutes);
Generating a warning as an infusion failure on the basis of the determination result. The injection time (minute) is the injection amount (mL) / the injection speed (mL / minute) + the preparation time (minute) until the start of injection. Control method of peritoneal dialysis device. At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point A dialysis solution, a dialysis solution, a dialysis condition such as an injection amount (mL), and a display device for displaying the inputted dialysis condition. A method for controlling a peritoneal dialysis device that performs dialysis by supplying a dialysate to a patient side and collecting the drainage,
Calculating a drainage time (minute) based on the drainage amount (mL) calculated based on the input dialysis conditions and the drainage speed (mL / min);
Judging that the drainage has been performed for more than a predetermined amount of the calculated drainage time (minutes);
Generating a warning as a drainage failure based on the determination result. 4. The drainage time (minutes) according to claim 3, wherein the drainage amount (mL) / the drainage speed (mL / min) + the preparation time (minute) until the start of drainage. Control method of peritoneal dialysis device. At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point A dialysis solution, a dialysis solution, a dialysis condition such as an injection amount (mL), and a display device for displaying the inputted dialysis condition. A storage medium storing a program code of a control method of a peritoneal dialysis device for performing dialysis by supplying a dialysate to a patient side and collecting the drainage,
A program code for calculating an injection time (minute) based on the injection amount (mL) and the injection rate (mL / min);
A program code for a step of judging that infusion has been performed for more than a predetermined amount of the calculated infusion time (minutes);
A storage medium storing a program code of a control method for a peritoneal dialysis apparatus, the program code comprising a step of generating an alarm as an infusion failure based on a determination result. The said injection | pouring time (min) is this injection | pouring amount (mL) / the injection | pouring rate (mL / min) + preparation time (min) until injection start, The Claim 9 characterized by the above-mentioned. A storage medium in which a program code of a control method for a peritoneal dialysis device is stored. At least one dialysate container filled with dialysate, a dialysate circuit including at least one drainage container for collecting dialysate, and the dialysate container as a starting point, or the drainage container as an end point A dialysis solution, a dialysis solution, a dialysis condition such as an injection amount (mL), and a display device for displaying the inputted dialysis condition. A storage medium storing a program code of a control method of a peritoneal dialysis device for performing dialysis by supplying a dialysate to a patient side and collecting the drainage,
A program code for calculating a drainage time (minute) based on the drainage amount (mL) and the drainage speed (mL / min);
A program code for a step of determining that drainage has been performed for a predetermined amount of the calculated drainage time (minutes);
A storage medium storing a program code of a control method for a peritoneal dialysis apparatus, the program code comprising a step of generating an alarm as a drainage failure based on a determination result. 12. The drainage time (minutes) according to claim 11, wherein the drainage amount (mL) / the drainage rate (mL / min) + the preparation time (minutes) until the start of drainage. A storage medium in which a program code of a control method for a peritoneal dialysis device is stored.

Images