JP6644857B2 - Melting equipment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a dissolving apparatus for dissolving a powder drug for dialysis to obtain a stock solution for dialysis.

  Dialysis fluids used for treatment of patients with renal failure in hospitals and the like are generally classified into bicarbonate and acetic acid, and bicarbonate-based dialysate does not contain sodium bicarbonate (hereinafter, referred to as It is adjusted by mixing water with two kinds of chemicals, that is, agent A) and sodium bicarbonate (hereinafter, agent B). In recent years, from the viewpoint of improving transportability, attempts have been made to dissolve a powdered version of these agents A and B (hereinafter referred to as “dialysis powder drug”) before the dialysis treatment time. With regard to the solution (particularly, the agent B), the concentration tends to decrease with time, and it was difficult to prepare a large amount of the solution.

  Therefore, a dissolving operation is required for each dialysis treatment, and various dissolving apparatuses for dissolving have been conventionally proposed. For example, Patent Literature 1 discloses a melting apparatus provided with two melting tanks. With this configuration, after the dialysis is completed, one of the dissolving tanks is charged with the dialysis powder drug in advance in preparation for the next dialysis, and the other dissolving tank is washed and disinfected before the next dialysis is started. It can be carried out. In addition, during the dialysis, while the dialysate stock solution is being supplied from one dissolving tank to the artificial dialysate supply device, the other dissolving tank can additionally dissolve the dialysis powder drug.

JP 2001-9028 A

  However, in the above prior art, it was difficult to judge the appropriateness of the amount of the dialysis powdered drug introduced into the dissolving tank with respect to the amount of water supplied into the dissolving tank. When the amount of the dialysis powder drug is added, there is a problem that an dialysis stock solution having an inappropriate concentration is generated. It is also conceivable to measure the conductivity of the undiluted solution for dialysis and determine the appropriateness of the dosage of the powdered dialysis drug based on the measured value. Therefore, when it is determined that the input amount is inappropriate, it is necessary to perform the stirring and generating operation again.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a dissolving apparatus capable of accurately judging the appropriateness of the amount of a dialysis powder drug put into a dissolving tank with a simple configuration. .

The invention according to claim 1 is a dissolving apparatus for dissolving a dialysis powder drug to obtain a stock solution for dialysis, wherein a dissolution tank capable of containing the dialysis powder drug, and the dialysis powder drug in the dissolution tank. A water supply line for supplying water for dissolution, a stirring means capable of stirring the solution in the dissolving tank, and a continuous and real-time detection of the level of the water or the solution supplied to the dissolving tank Whether the amount of the dialysis powder drug introduced into the dissolving tank is appropriate for the amount of water supplied to the dissolving tank based on the liquid level detected by the liquid level detecting means and the liquid level detected by the liquid level detecting means. Before the solution is stirred by the stirring means , the determination means of the dialysis powder drug that has been injected with respect to the amount of water supplied into the dissolution tank. The theoretical value of the liquid level when the volume is Compares the measured value of the liquid level detected by the liquid level detecting means, or after the agitation of the solution by the stirring means is completed, is turned relative to the amount of water supplied to the dissolving tank The theoretical value of the liquid level when the amount of the powdered drug for dialysis is appropriate is compared with the measured value of the liquid level detected by the liquid level detecting means, and the theoretical value and the measured value of the liquid level are compared . The difference between the difference and the amount of water supplied to the dissolving tank with respect to the amount of water supplied to the dissolving tank can be calculated.

  According to a second aspect of the present invention, in the dissolving apparatus according to the first aspect, the stirring by the agitating means is set to be performed for a predetermined time, and after the predetermined time has elapsed, the stirring is supplied into the melting tank by the determining means. When it is determined that the amount of the dialysis powdered drug introduced into the dissolution tank with respect to the amount of water that has been discharged is not appropriate, a notification to that effect is provided.

  According to a third aspect of the present invention, in the dissolving apparatus of the first or second aspect, the dissolving apparatus further includes an input unit for inputting an amount of the powdered dialysis agent charged into the dissolving tank. According to another aspect of the present invention, it is possible to appropriately determine the input amount of the dialysis powder drug based on the input value input by the input means and the liquid level detected by the liquid level detecting means.

  According to a fourth aspect of the present invention, there is provided the lysing apparatus according to any one of the first to third aspects, wherein the dialysis is generated in the lysing tank based on the liquid level detected by the liquid level detecting means. It is characterized in that the volume of the stock solution can be calculated.

  According to the invention of claim 1, a liquid level detecting means capable of continuously and in real time detecting the liquid level of the water or the solution supplied into the dissolving tank, and a liquid level detected by the liquid level detecting means. The determination means for judging the appropriateness of the amount of the powdered dialysis drug introduced into the dissolving tank with respect to the amount of water supplied into the dissolving tank, Appropriateness of the amount can be accurately determined with a simple configuration.

  Further, the determining means includes a theoretical value of the liquid level when the amount of the powdered dialysis drug charged with respect to the amount of water supplied into the dissolving tank is appropriate, and a liquid detected by the liquid level detecting means. The measured value of the liquid level is compared with the theoretical value of the liquid level and the difference between the measured value and the measured value is used to judge whether or not the amount of the dialysis powder drug introduced into the dissolving tank with respect to the amount of water supplied into the dissolving tank is appropriate. Therefore, the appropriateness of the amount of the supplied dialysis powder medicine can be more accurately determined.

  Furthermore, since the determination means can calculate the excess or deficiency of the dialysis powder drug introduced into the dissolving tank with respect to the amount of water supplied to the dissolving tank from the difference between the theoretical value and the measured value of the liquid level, In addition to the appropriateness of the amount of the supplied dialysis powder drug, it is possible to grasp the shortage or excess amount, and to be notified of how much dialysis powder drug or water should be added in order to make it appropriate.

  According to the second aspect of the present invention, the stirring by the stirring means is set to be performed for a predetermined time, and after the predetermined time has elapsed, the stirring means is supplied to the dissolving tank with respect to the amount of water supplied to the dissolving tank. If it is determined that the amount of the dialysis powder drug is not appropriate, the user is notified that the amount of the dialysis powder drug is not appropriate. Can be prevented.

  According to the invention of claim 3, there is provided input means for inputting an amount of the dialysis powdered drug put into the dissolving tank, and the judging means comprises an input value inputted by the input means and a liquid level detecting means. Based on the liquid level detected by the method, it is possible to determine the appropriate amount of the powder medicine for dialysis, it is possible to reliably know the amount of the powder medicine for dialysis to the dissolution apparatus, the powder for dialysis Appropriateness of the dosage of the medicine can be accurately determined.

  According to the invention of claim 4, the volume of the undiluted dialysis solution generated in the dissolving tank can be calculated based on the liquid level detected by the liquid level detecting means. In addition to functioning as a means for determining the appropriateness of the amount of the dialysis powder drug, it can function as a means for calculating the volume of the dialysis stock solution generated in the dissolution tank.

Plan view and front view showing a melting apparatus according to an embodiment of the present invention. Schematic diagram showing the internal configuration of the melting device Flow chart showing control contents in the melting apparatus Flowchart showing control contents of the melting apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The dissolution apparatus according to the present embodiment is for dissolving a dialysis powder drug to obtain a stock solution for dialysis, and as shown in FIGS. 1 and 2, a dissolution tank 2 and an auxiliary dissolution tank capable of containing the dialysis powder drug. 3, water supply lines L1 and L2 for supplying water for dissolving the dialysis powder drug to each of the dissolving tank 2 and the auxiliary dissolving tank 3, and stirring the liquid in the dissolving tank 2 and the auxiliary dissolving tank 3 It mainly comprises: stirring means 4 and 5 which can be used; liquid level detecting means 6; determining means 7 having storage means 8 and calculating means 9; input means 10; and display means 11.

  The dissolving tank 2 has a storage space in which a dialysis powder drug composed of any one of two types, one not containing sodium bicarbonate (agent A) or sodium bicarbonate (agent B), can be charged, and a water source A Is connected to a water supply line L1 extending from the water supply line L1. A valve V1 composed of an electromagnetic valve or the like is provided in the water supply line L1, and water can be supplied into the dissolution tank 2 by opening the valve V1. Thus, after a predetermined amount of water is supplied from the water supply source A into the dissolving tank 2 and accommodated therein, a predetermined amount (prescribed amount) of the dialysis powder drug for the amount of water is supplied to the dissolving tank 2. By adding and stirring, a dialysis stock solution having a predetermined amount and a predetermined concentration can be obtained.

  The auxiliary dissolving tank 3 has a space in which the same kind of dialysis powder medicine as the dialysis powder medicine to be introduced into the dissolution tank 2 can be introduced, and a water supply line L2 extending from the stirring line L3 of the dissolution tank 2 is connected. Have been. A valve V2 composed of an electromagnetic valve or the like is provided in the water supply line L2. By opening this valve V2, water can be supplied from the dissolution tank 2 into the auxiliary dissolution tank 3. The auxiliary dissolving tank 3 is a tank whose capacity is relatively smaller than that of the dissolving tank 2, and is connected to the dissolving tank 2 via an overflow line L5.

  Thus, the powder medicine for dialysis is previously charged into the auxiliary dissolving tank 3, and during treatment, a sufficient amount of water specified in the dissolving tank 2 is supplied, and while the water is supplied from the water supply line L2, stirring is performed. By closing the valve V3 disposed in L3 and sending the dissolving solution also to the dissolving tank 2 via the overflow line L5, a predetermined amount and a predetermined amount are determined by both the dissolving tank 2 and the auxiliary dissolving tank 3. Produce a concentrated stock solution for dialysis. Then, the dialysis stock solution in the dissolution tank 2 is first sent to the dialysis treatment device side (dialysis fluid supply device, etc.), and when the lysis tank 2 becomes empty, the dialysis stock solution in the auxiliary lysis tank 3 is continued. Liquid can be sent. In addition, while feeding the undiluted solution for dialysis in the auxiliary dissolution tank 3, the undiluted solution for dialysis can be generated by the dissolution tank 2 alone by introducing and dissolving the dialysis powder drug into the dissolution tank 2. it can.

  Therefore, by providing the auxiliary dissolving tank 3, before the treatment (eg, the night before the treatment), the dissolving tank 2 is washed or disinfected while the dialysis powder drug is charged in the auxiliary dissolving tank 3. It can function as a reservoir during treatment. Further, the dialysis powder drug applied to the present embodiment is packed in a dissolving bag at predetermined intervals, and an operator breaks the dissolution bag and dissolves the dialysis powder drug inside the dissolution tank 2 or the auxiliary dissolution tank. 3

  The stirring means 4 is for stirring the liquid (solution) contained in the dissolving tank 2 and, in the present embodiment, comprises a nozzle connected to the tip of the circulation line L3. The circulation line L3 extends from the bottom surface of the dissolving tank 2 and has a distal end formed of a circulating passage connected to the stirring means 4 disposed in the dissolving tank 2, and a pump P1 provided in the middle of the passage. Is arranged. When the pump P1 is driven, the liquid in the dissolving tank 2 can be ejected from the stirring means 4 and circulated, so that the liquid in the dissolving tank 2 can be stirred.

  The stirring means 5 is for stirring the liquid (solution) contained in the auxiliary dissolving tank 3, and in the present embodiment, is composed of a nozzle connected to the tip of the water supply line L2. The water supply line L2 extends from the stirring line L3 of the dissolving tank 2 and has a leading end connected to the stirring means 5 provided in the auxiliary dissolving tank 3. When a sufficient amount of water is supplied to the dissolving tank 2 and the valve V2 is opened and the pump P1 is driven thereafter, the liquid in the dissolving tank 2 gushes from the stirring means 5 and the inside of the auxiliary dissolving tank 3 The dialysis powder medicine is stirred and the valve V3 disposed on the stirring line L3 is closed, and the dissolving solution is also sent to the dissolving tank 2 via the overflow line L5, and the dissolving tank 2 and the auxiliary dissolving are dissolved. Stir-dissolution is carried out both with the tank 3.

  In addition, the stirring means 4 and 5 according to the present embodiment are configured to include a circulation line L3 composed of a circulation flow path and a nozzle connected to the tip of the water supply line L2. Other forms (for example, an impeller or the like that can be driven to rotate in the dissolving tank 2 and the auxiliary dissolving tank 3) may be used as long as the solution inside can be stirred. Further, a shower means capable of ejecting a liquid in a shower shape may be provided above the dissolving tank 2 and the auxiliary dissolving tank 3, and the shower means may be connected to the ends of the circulation line L3 and the water supply line L2.

  The liquid level detecting means 6 comprises a sensor arranged in the dissolving tank 2 and can continuously and in real time detect the liquid level of the water or the solution supplied into the dissolving tank 2. The liquid level detecting means 6 according to the present embodiment includes a displacement part 6a extending vertically in the accommodation space of the dissolving tank 2 and a displacement part 6a floating on the liquid surface of the liquid contained in the dissolving tank 2. And a floating means 6b capable of moving up and down along the axis. The position of the floating means 6b with respect to the displacement portion 6a is detected continuously and in real time, and the Position) can be detected.

  The liquid level detecting means 6 may be either a contact type or a non-contact type as long as the liquid level of the water or the solution supplied into the dissolving tank 2 can be detected continuously and in real time. In addition to the magnetostrictive linear displacement sensor using the floating means as in the present embodiment, an ultrasonic sensor or the like may be used. Further, in this embodiment, the liquid level detecting means 6 is provided only in the dissolving tank 2, but may be provided in the auxiliary dissolving tank 3 together with the dissolving tank 2.

  In addition, an input unit 10 and a display unit 11 are provided in the housing of the melting apparatus 1 according to the present embodiment. The input means 10 is configured by an operation switch, a touch panel, and the like that can be operated by an operator. In the present embodiment, the input means 10 controls the amount of the dialysis powder drug that has been put into the dissolution tank 2 or the auxiliary dissolution tank 3. It can be entered. The display means 11 is constituted by a liquid crystal monitor or the like, and is capable of performing various displays relating to the melting operation.

  Here, the dissolving apparatus 1 according to the present embodiment includes a determination unit 7 electrically connected to the liquid level detection unit 6, the input unit 10, the display unit 11, and the like. The judging means 7 comprises, for example, a microcomputer or the like. Based on the liquid level detected by the liquid level detecting means 6, the dialysis injected into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2 is performed. It is configured to be able to determine the appropriateness of the amount of the powder medicine for use.

  The determination means 7 according to the present embodiment determines that the amount of the dialysis powder medicine that has been input is appropriate for the amount of water supplied into the dissolution tank 2 (that is, a predetermined amount of water is predetermined. The theoretical value of the liquid level when the specified amount of the dialysis powder drug is supplied) is compared with the actual measured value of the liquid level detected by the liquid level detecting means 6, and the theoretical value of the liquid level and the actual measured value are compared. From the difference from the value, it is possible to judge whether the amount of the dialysis powder drug introduced into the dissolving tank 2 is appropriate or not with respect to the amount of water supplied into the dissolving tank 2. It should be noted that by judging “the suitability of the amount of the dialysis powder medicine charged into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2”, at the same time, “dialysis charged into the dissolving tank 2” is determined. The appropriateness of the amount of water supplied into the dissolving tank 2 with respect to the amount of the powdered chemical for use. "

  Specifically, the judging means 7 determines that the amount of the dialysis powdered drug supplied is appropriate for the amount of water supplied into the dissolving tank 2 (that is, the predetermined amount of water is determined in advance for a predetermined amount of water). Storage means 8 for storing the theoretical value of the liquid level when the prescribed specified amount of the dialysis powder drug is introduced), and the theoretical value of the liquid level and the liquid level detecting means 6 stored in the storage means 8. Calculating means 9 for comparing the detected liquid level with the actually measured value (for example, subtracting the theoretical value of the liquid level from the actually measured value of the liquid level or calculating the ratio); If the measured values are substantially the same, it is determined that the input amount of the powdery drug for dialysis with respect to the water supply amount is appropriate.

  On the other hand, in the present embodiment, the amount (specifically, the number of used dissolving bags) of the powdered dialysis agent charged into the dissolving tank 2 is input by the input unit 10, and Based on the input value input and the liquid level detected by the liquid level detecting means 6, it is possible to judge the appropriateness of the input amount of the dialysis powder drug. That is, the judging means 7 grasps the input amount (the number of dissolving bags × the capacity of one dissolving bag) of the powdered drug for dialysis based on the input value (the number of dissolving bags) inputted by the input means 10 and inputs the same. The value is determined by comparing the value with the amount of water supply. Thus, the dispensing device can be reliably made aware of the input amount of the dialysis powder drug, and can appropriately determine whether the input amount of the dialysis powder drug is appropriate.

  Then, when the measured value of the liquid level is larger than the theoretical value of the liquid level, the judging means 7 determines that the input amount of the dialysis powder drug to the water supply amount is excessive (greater than the dialysis powder drug to be input). If the actual measured value of the liquid level is smaller than the theoretical value of the liquid level, it is determined that the supply amount of the dialysis powder drug to the water supply amount is insufficient (less than the dialysis powder drug to be supplied), and the water supply amount is determined. It is determined that none of the amounts of the dialysis powder drug is "appropriate".

  Further, the calculating means 9 of the judging means 7 according to the present embodiment calculates the difference between the theoretical value and the measured value of the liquid level for the amount of water supplied to the dissolving tank 2 with respect to the amount of water supplied to the dissolving tank 2 for dialysis. It is configured to be able to calculate the excess or deficiency (insufficient or excessive) of the powdered medicine. With this, in addition to the appropriateness of the amount of the powdered dialysis powder, the shortage or the excess can be grasped, and the amount of the powdered dialysis drug or water to be made appropriate can be notified. it can.

  Furthermore, the calculating means 9 of the determining means 7 according to the present embodiment can calculate the volume of the undiluted dialysis solution generated in the dissolving tank 2 based on the liquid level detected by the liquid level detecting means 6. It is configured. By calculating the volume of the undiluted dialysis solution generated in the dissolving tank 2, it is possible to judge whether the undiluted dialysis solution is sufficient, for example, until the dialysis treatment is completed. Therefore, in addition to functioning the liquid level detecting means 6 as a means for judging the appropriateness of the amount of the supplied dialysis powder drug, the liquid level detecting means 6 calculates the volume of the dialysis stock solution generated in the dissolution tank 2. Function.

  Further, the dissolving apparatus 1 according to the present embodiment is set so that the stirring by the stirring means 4 is performed for a predetermined time, and after the predetermined time has elapsed, the determination means 7 controls the amount of water supplied into the dissolving tank 2. If it is determined that the amount of the powdered dialysis drug introduced into the dissolving tank 2 is not appropriate, the fact is notified. The notification may be, for example, a notification by sound, a warning sound such as a buzzer, or the like, in addition to the display by the display unit 11.

  Further, in the present embodiment, the amount of water supplied into the dissolving tank 2 by the judging means 7 before the stirring by the stirring means 4 in a state where the water and the dialysis powder drug are contained in the dissolving tank 2. It is configured to judge the appropriateness of the amount of the dialysis powder drug charged into the dissolution tank 2 with respect to the water level in the storage means 8 when the dialysis powder drug is not completely dissolved in water (undissolved). (The liquid level at the time) is stored as “theoretical value of the liquid level”.

Next, the contents of control of the dissolving apparatus 1 according to the present embodiment (production of a stock solution for dialysis using the dissolving tank 2 alone) will be described based on the flowchart of FIG.
First, the operator inputs (S1) the amount of the dialysis powder medicine to be charged (that is, the number of dissolving bags to be used) with the input means 10 and then opens the valve V1 to open the dissolving tank 2. Is supplied with a predetermined amount of water (S2), and the amount (dissolution bag) of the dialysis powder medicine input to the input means 10 is put into the dissolution tank 2 (S3).

  Then, the liquid level detection means 6 detects the liquid level immediately after the introduction of the dialysis powder drug (S4), and based on the detected liquid level, the dissolution tank with respect to the amount of water supplied into the dissolution tank 2. The determination means 7 determines whether the amount of the powdered dialysis drug introduced into the sample 2 is appropriate (S5). If it is determined in step S5 that the amount of the dialysis powder drug is appropriate, the process proceeds to S6, in which the pump P1 is driven to activate the stirring means 4, and the water in the dissolution tank 2 and the dialysis powder drug are stirred. To prepare a stock solution for dialysis at a predetermined concentration.

  On the other hand, if it is determined in S5 that the amount of the dialysis powder drug is not appropriate, the process proceeds to S7, where it is determined whether or not the liquid level detected by the liquid level detecting means 6 is lower than a specified value. Then, since it can be determined that the input amount of the powder medicine for dialysis is insufficient, the process proceeds to S8, and the calculating unit 9 calculates the insufficient amount, and further adds (adds) the amount according to the insufficient amount. The number of dissolving bags) is displayed on the display means 11 to instruct additional feeding.

  In S9, an input operation by the operator is waited. When the input operation is performed, it is determined whether or not the input is an instruction to continue the operation (S10). If it is determined in S10 that an instruction to continue the work has been input, the process proceeds to S3, and the additional amount of the dialysis powder medicine displayed on the display means 11 is injected into the dissolution tank 2. If it is determined in S10 that an instruction not to continue the work has been input, the process proceeds to S11, and the solution in the dissolution tank 2 is discarded.

  When it is determined in S7 that the liquid level detected by the liquid level detecting means 6 is higher than the specified value, it can be determined that the amount of the powdered dialysis agent used is excessive (the amount of supplied water is insufficient). Therefore, the process proceeds to S12, and the calculating means 9 calculates the excess amount, and displays the erroneous input amount (the number of erroneously used dissolving bags) corresponding to the excess amount on the display means 11. Then, in S13, an input operation by the operator is waited, and when the input operation is performed, it is determined whether or not the input is an instruction to continue the operation (S14).

  If it is determined in S14 that an instruction to continue the operation has been input, the process proceeds to S15, in which the input value is changed to the input amount (the number of dissolving bags) of the dialysis powder drug suitable for the water supply amount, and the process proceeds to S2. I will return. If it is determined in S14 that an instruction not to continue the work has been input, the process proceeds to S16, and the solution in the dissolution tank 2 is discarded. As described above, before the stirring by the stirring means 4, the control for judging by the judging means 7 whether or not the amount of the dialysis powder drug put into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2 is appropriate. It will end.

  According to the above embodiment, the liquid level detecting means 6 capable of detecting the liquid level of the water or the solution supplied into the dissolving tank 2 continuously and in real time, and the liquid level detected by the liquid level detecting means 6 A determination means 7 for determining whether or not the amount of the dialysis powdered drug introduced into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2 is provided. Appropriateness of the amount of the dialysis powder drug can be accurately determined with a simple configuration.

  In particular, the judging means 7 according to the present embodiment determines the theoretical value of the liquid level when the amount of the powdered dialysis medicine supplied is appropriate for the amount of water supplied into the dissolving tank 2, and the liquid level. The measured level of the liquid detected by the detecting means is compared with the measured value, and the difference between the theoretical value and the measured value of the level is compared with the amount of water supplied to the dissolving tank 2 for the dialysis injected into the dissolving tank 2. The appropriateness of the amount of the powder medicine for dialysis can be determined, so that the appropriateness of the amount of the supplied dialysis powder medicine can be determined with higher accuracy.

  Furthermore, in the present embodiment, the stirring by the stirring means 4 is set to be performed for a predetermined time, and after the predetermined time has elapsed, the determination means 7 controls the amount of water supplied to the dissolution tank 2 with respect to the amount of water supplied into the dissolution tank 2. If it is determined that the amount of the dialysis powder drug input to the dialysis treatment device is not appropriate, the user is notified that the amount of the dialysis powder drug input is not appropriate. To the apparatus) can be prevented. The predetermined time for stirring may be stored in advance, or may be input by the input unit 10.

  Further, in the present embodiment, the water supplied to the dissolving tank 2 by the judging means 7 before the stirring by the stirring means 4 is a state in which the water and the dialysis powder drug are contained in the dissolving tank 2. Since the suitability of the amount of the powdered dialysis drug in the dissolution tank 2 with respect to the amount is determined, it is possible to reliably determine the appropriateness of the input amount of the powdered dialysis drug before the work of generating the undiluted dialysis solution. Even when it is determined that the amount is not appropriate, the workability can be improved because it is not necessary to repeatedly perform the stirring operation.

Next, the control contents of the melting apparatus 1 according to another embodiment of the present invention will be described based on the flowchart of FIG. Here, in the present embodiment, after the stirring by the stirring means 4, the judging means 7 judges whether the amount of the dialysis powder drug put into the dissolving tank 2 is appropriate for the amount of water supplied into the dissolving tank 2. being configured to, in the storage means 8, dialysis water powder medicament liquid level when fully melted (dissolution time of the liquid level) is stored as "theoretical value of the liquid level."

  First, the operator inputs (S1) the amount of the dialysis powder medicine to be charged (that is, the number of dissolving bags to be used) with the input means 10 and then opens the valve V1 to open the dissolving tank 2. Is supplied with a predetermined amount of water (S2), and the amount (dissolution bag) of the dialysis powder medicine input to the input means 10 is put into the dissolution tank 2 (S3). Then, in step S4, the pump P1 is driven to operate the stirring means 4, and the water and the dialysis powder drug in the dissolution tank 2 are stirred and dissolved for a predetermined time to prepare a solution (undiluted solution for dialysis).

  Then, the liquid level after the completion of the stirring of the water and the dialysis powder drug is detected by the liquid level detecting means 6 (S5), and based on the detected liquid level, the amount of water supplied into the dissolving tank 2 is determined. The determination means 7 determines whether or not the amount of the dialysis powdered drug that has been introduced into the dissolving tank 2 is appropriate (S6). If it is determined in step S6 that the amount of the dialysis powder drug is appropriate, a series of stirring and dissolving operations is completed.

  On the other hand, if it is determined in S6 that the amount of the dialysis powder drug is not appropriate, the process proceeds to S7, where it is determined whether or not the liquid level detected by the liquid level detecting means 6 is lower than a specified value. It is determined whether or not the concentration detected by the conductivity meter is lower than a predetermined value. In S7, when it is determined that the liquid level detected by the liquid level detecting means 6 is lower than the specified value and the concentration detected by the conductivity meter is lower than a predetermined value, the input amount of the powder medicine for dialysis is reduced. Since it can be determined that there is a shortage, the process proceeds to S8, and the calculating unit 9 calculates the shortage amount, and displays the additional input amount (the number of dissolving bags to be added) according to the shortage on the display unit 11. Instruct additional input.

  In S9, an input operation by the operator is waited. When the input operation is performed, it is determined whether or not the input is an instruction to continue the operation (S10). If it is determined in S10 that an instruction to continue the work has been input, the process proceeds to S3, and the additional amount of the dialysis powder medicine displayed on the display means 11 is injected into the dissolution tank 2. If it is determined in S10 that an instruction not to continue the work is input, the process proceeds to S11, and the solution in the dissolution tank 2 is discarded.

  If it is determined in S7 that the liquid level detected by the liquid level detecting means 6 is higher than the specified value and the concentration detected by the electric conductivity meter is higher than a predetermined value, the amount of the dialysis powder drug to be injected is determined. Can be determined to be excessive (the amount of supplied water is insufficient), the process proceeds to S12, and the calculating means 9 calculates the excessive amount, and the erroneous input amount (the erroneously used melting The number of bags is displayed on the display means 11. Then, in S13, an input operation by the operator is waited, and when the input operation is performed, it is determined whether or not the input is an instruction to continue the operation (S14).

  If it is determined in S14 that an instruction to continue the operation has been input, the process proceeds to S15, in which the input value is changed to the input amount (the number of dissolving bags) of the dialysis powder drug suitable for the water supply amount, and the process proceeds to S2. I will return. If it is determined in S14 that an instruction not to continue the work is input, the process proceeds to S16, and the solution in the dissolution tank 2 is discarded. As described above, after the stirring by the stirring means 4, the control for judging the appropriateness of the amount of the dialysis powder drug put into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2 by the judging means 7 ends. Will be done.

  According to the above embodiment, as in the previous embodiment, the liquid level detecting means 6 capable of continuously and real time detecting the liquid level of the water or the solution supplied into the dissolving tank 2 and the liquid level detecting means 6 And determining means 7 for determining, based on the detected liquid level, whether the amount of the dialysis powdered drug introduced into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2 is appropriate. Appropriateness of the amount of the dialysis powder drug put into the dissolution tank 2 can be accurately determined with a simple configuration.

  In particular, according to the present embodiment, in S7, in addition to determining whether the liquid level detected by the liquid level detecting means 6 is lower than a specified value, the concentration detected by the conductivity meter is lower than a predetermined value. Since it has been determined whether or not the difference in the liquid level is caused by the undissolved portion of the dialysis powder drug, it is possible to determine whether or not the difference in the liquid level is due to the undissolved portion of the dialysis powder drug. It can be done. In S7, as in the previous embodiment, only the determination as to whether or not the liquid level detected by the liquid level detecting means 6 is lower than a specified value may be made.

  The present embodiment has been described above, but the present invention is not limited to this. Based on the liquid level detected by the liquid level detecting means 6, the amount of water supplied to the As long as it is provided with a judging means capable of judging the appropriateness of the amount of the dialysis powder drug put into the apparatus, the judgment is not limited to calculating the difference between the theoretical value and the actually measured value of the liquid level, and from other parameters. You may do it. In this embodiment, the calculating means 9 calculates the excess or deficiency of the powdered dialysis agent charged into the dissolving tank 2 with respect to the amount of water supplied into the dissolving tank 2. May not be performed, and only the appropriateness of the input amount of the dialysis powder drug may be determined.

  In the present embodiment, the auxiliary dissolving tank 3 is provided in addition to the dissolving tank 2, but the liquid dissolving tank 2 alone or the auxiliary dissolving tank 3 has the same liquid level detection as the dissolving tank 2. Means 6 may be provided, and the liquid level detecting means 6 may be electrically connected to the judging means 7. Further, it is assumed that the dialysis powder drug can be dissolved in each of the two dissolution tanks to produce a stock solution for dialysis, and the solution is alternately sent from these dissolution tanks to the dialysis treatment device side (dialysis solution supply device, etc.). It may be obtained. Further, in the present embodiment, the same type of dialysis powder drug is supplied and dissolved in the dissolving tank 2 and the auxiliary dissolving tank 3, but the dissolving tank 2 and the auxiliary dissolving tank 3 can be independently dissolved. With a proper piping configuration, different dialysis powder drugs (agent A and agent B) may be charged and dissolved, respectively.

  Further, the judging means 7 judges whether or not the amount of the dialysis powder drug charged into the dissolving tank with respect to the amount of water supplied into the dissolving tank 2 based on the liquid level detected by the liquid level detecting means 6. Although the determination is made, the determination of the presence or absence of the undissolved powder medicine for dialysis in the solution generated in the dissolving tank 2 may be performed based on the liquid level detected by the liquid level detecting means 6. . In this case, the judging means 7 compares the theoretical value of the liquid level when the powdered dialysis drug is completely dissolved in water with the actually measured value of the liquid level detected by the liquid level detecting means 6, and It is preferable to determine the presence or absence of undissolved powder medicine for dialysis from the difference between the theoretical value and the measured value. Thus, the liquid level detecting means 6 functions as a means for judging the appropriateness of the amount of the supplied dialysis powder medicine, and as a means for judging whether or not the dialysis powder medicine remains undissolved. Can work.

  Based on the liquid level detected by the liquid level detecting means, it is possible to judge the suitability of the amount of the dialysis powder drug put into the dissolution tank with respect to the amount of water supplied into the dissolution tank, The theoretical value of the liquid level when the amount of the supplied dialysis powder drug is appropriate with respect to the supplied water amount is compared with the actually measured value of the liquid level detected by the liquid level detecting means. If it is a dissolving device that can calculate the excess or deficiency of the powdered dialysis drug introduced into the dissolving tank with respect to the amount of water supplied into the dissolving tank from the difference between the theoretical value and the measured value of the liquid level, However, the present invention can be applied to a device having a different function or a device having another function.

DESCRIPTION OF SYMBOLS 1 Dissolution apparatus 2 Dissolution tank 3 Auxiliary dissolution tank 4 Stirring means 5 Stirring means 6 Liquid level detection means 7 Judgment means 8 Storage means 9 Calculation means 10 Input means 11 Display means L1, L2 Water supply line

Claims (4)

In a dissolving apparatus for dissolving a dialysis powder drug to obtain a dialysis stock solution,
A dissolution tank capable of containing the dialysis powder drug,
A water supply line for supplying water for dissolving the dialysis powder drug to the dissolution tank,
Stirring means capable of stirring the solution in the dissolving tank,
Liquid level detection means capable of continuously and in real time detecting the liquid level of the water or solution supplied into the dissolving tank,
Based on the liquid level detected by the liquid level detecting means, a determining means capable of determining whether the amount of the dialysis powder drug put into the dissolving tank with respect to the amount of water supplied into the dissolving tank is appropriate. ,
The determination means, before performing the stirring of the solution by the stirring means , the amount of the dialysis powder drug that is input to the amount of water supplied into the dissolution tank is appropriate Compare the theoretical value of the liquid level with the actually measured value of the liquid level detected by the liquid level detecting means, or after the stirring of the solution by the stirring means is completed, the water supplied into the dissolving tank. The theoretical value of the liquid level when the amount of the dialysis powdered drug that has been input with respect to the amount of the liquid is appropriate, and the actual measured value of the liquid level detected by the liquid level detecting means are compared . A dissolving apparatus characterized in that it is possible to calculate an excess or deficiency of a powdered dialysis agent introduced into the dissolving tank with respect to an amount of water supplied into the dissolving tank from a difference between a theoretical value and an actually measured value.   The stirring by the stirring means is set to be performed for a predetermined time, and after the lapse of the predetermined time, the dialysis powder drug put into the dissolution tank with respect to the amount of water supplied to the dissolution tank by the determination means. 2. The dissolving apparatus according to claim 1, wherein when it is determined that the amount is not appropriate, the fact is notified.   Input means for inputting the amount of the dialysis powder drug put into the dissolving tank is provided, and the determination means includes an input value input by the input means and a liquid detected by the liquid level detection means. 3. The dissolving apparatus according to claim 1, wherein an appropriate amount of the injection amount of the dialysis powder drug can be determined based on the position.   The volume of the undiluted dialysis solution generated in the dissolution tank can be calculated based on the liquid level detected by the liquid level detection unit, according to any one of claims 1 to 3, wherein Melting equipment.

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