JP6703257B2 - Melting device - Google Patents
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- JP6703257B2 JP6703257B2 JP2016058713A JP2016058713A JP6703257B2 JP 6703257 B2 JP6703257 B2 JP 6703257B2 JP 2016058713 A JP2016058713 A JP 2016058713A JP 2016058713 A JP2016058713 A JP 2016058713A JP 6703257 B2 JP6703257 B2 JP 6703257B2
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- 238000002844 melting Methods 0.000 title claims description 30
- 230000008018 melting Effects 0.000 title claims description 30
- 239000011550 stock solution Substances 0.000 claims description 141
- 238000004090 dissolution Methods 0.000 claims description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 238000003860 storage Methods 0.000 claims description 85
- 238000000502 dialysis Methods 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 51
- 239000000243 solution Substances 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 24
- 239000003814 drug Substances 0.000 claims description 14
- 229940079593 drug Drugs 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 description 27
- 239000000645 desinfectant Substances 0.000 description 8
- 239000000385 dialysis solution Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 230000002354 daily effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 230000009089 cytolysis Effects 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XDIYNQZUNSSENW-UUBOPVPUSA-N (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O XDIYNQZUNSSENW-UUBOPVPUSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000002934 lysing effect Effects 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
本発明は、透析用粉末薬剤を水で溶解して透析用原液を調製し透析液供給装置などの供給対象に供給する溶解装置に関するものである。 TECHNICAL FIELD The present invention relates to a dissolving device for dissolving a dialysis powder drug with water to prepare a dialysis stock solution and supplying it to a supply target such as a dialysis solution supply device.
従来、人工透析を行う病院などの透析施設では、透析用粉末薬剤を水で溶解して透析用原液を調製し透析液供給装置などの供給対象に供給する溶解装置が用いられている（特許文献１）。溶解装置は、透析用粉末薬剤及び水が供給されて透析用原液が調製される溶解槽と、溶解槽で調製された透析用原液が送られる貯留槽と、を有し、溶解槽で調製した透析用原液を一旦貯留槽に貯留した後に透析液供給装置に供給する。透析液供給装置に供給された透析用原液は、透析液供給装置において水で希釈されて透析液とされた後に、透析装置に供給される。 2. Description of the Related Art Conventionally, in dialysis facilities such as hospitals that perform artificial dialysis, a dissolving device that dissolves a dialysis powder drug with water to prepare a dialysis stock solution and supplies it to a supply target such as a dialysis liquid supply device has been used (Patent Document 1). The dissolution apparatus has a dissolution tank in which the powdered drug for dialysis and water are supplied to prepare a dialysis stock solution, and a storage tank to which the dialysis stock solution prepared in the dissolution tank is sent, and is prepared in the dissolution tank. The stock solution for dialysis is once stored in a storage tank and then supplied to a dialysate supply device. The dialysis stock solution supplied to the dialysate supply device is diluted with water in the dialysate supply device to form a dialysate, and then supplied to the dialyzer.
このような溶解装置では、透析液供給装置への透析用原液の供給不足が生じないように、貯留槽内の透析用原液の水位が所定の水位まで下がった場合に、溶解槽で調製された透析用原液を全て貯留槽に送り、溶解槽で新たに透析用原液を調製する動作を繰り返すことが行われている。 In such a dissolving device, in order to prevent insufficient supply of the dialysate stock solution to the dialysate supply device, when the water level of the dialysate stock solution in the storage tank has dropped to a predetermined water level, it was prepared in the dissolution tank It is common practice to send the whole dialysis stock solution to a storage tank and repeat the operation of preparing a new dialysis stock solution in the dissolution tank.
しかしながら、上述のような従来の溶解装置では、次のような改善すべき課題がある。 However, the conventional melting apparatus as described above has the following problems to be improved.
透析用原液は、時間が経つと雑菌が繁殖する可能性があるため、毎日あるいは週に数回の頻度で溶解槽や貯留槽の洗浄及び消毒が行われる。そのため、洗浄、消毒の開始時に溶解槽や貯留槽に収容されている透析用原液は廃棄されることになる。 Since the undiluted solution for dialysis may proliferate various bacteria over time, the lysis tank and the storage tank are washed and disinfected every day or several times a week. Therefore, the dialysis stock solution stored in the dissolution tank or the storage tank is discarded at the start of cleaning and disinfection.
透析施設では、１日の透析治療を開始する際には、透析液供給装置や透析装置のウォーミングアップのために、比較的大量の透析用原液を必要とする。また、１日のうち透析治療のために比較的大量の透析用原液を必要とする時間帯がある。一方、１日の透析治療の終盤など、病床数に対する患者の割合が少なくなり、透析用原液の消費量が少なくなる時間帯もある。 In a dialysis facility, when starting one-day dialysis treatment, a relatively large amount of stock solution for dialysis is required to warm up the dialysate supply device and the dialysis machine. In addition, there are times when a relatively large amount of stock solution for dialysis is required for dialysis treatment in one day. On the other hand, there are times when the ratio of patients to the number of beds decreases and the consumption of undiluted solution for dialysis decreases, such as at the end of daily dialysis treatment.
しかし、従来の溶解装置では、上述のように、貯留槽内の透析用原液の水位が所定の水位まで下がった場合に、溶解槽で調製された透析用原液を全て貯留槽に送り、溶解槽で新たに透析用原液を調製することが行われている。これにより、透析液供給装置への透析用原液の供給不足が生じることは防止されるものの、その後の透析用原液の消費量が少ない場合には、１日の透析治療が終了した時点で、大量の透析用原液が溶解装置内に残り、その後、洗浄・消毒を実施した場合、溶解装置内の残留液が廃棄されるため、作製した透析用原液が無駄になってしまう。 However, in the conventional dissolution apparatus, as described above, when the water level of the stock solution for dialysis in the storage tank falls to a predetermined water level, all the stock solution for dialysis prepared in the dissolution tank is sent to the storage tank, A new stock solution for dialysis is being prepared in Japan. This will prevent the supply of dialysis stock solution from being insufficiently supplied to the dialysis solution supply device, but if the subsequent consumption of dialysis stock solution is low, a large amount of dialysis solution will be consumed at the end of the 1-day dialysis treatment. When the undiluted solution for dialysis remains in the dissolution apparatus and is then washed and disinfected, the residual solution in the dissolution apparatus is discarded, and thus the prepared undiluted solution for dialysis is wasted.
したがって、本発明の目的は、装置の稼働時に透析用原液の供給不足が生じることを防止すると共に、装置の稼働を終了した時に装置内に残っている透析用原液の量を少なくすることが可能な溶解装置を提供することである。 Therefore, an object of the present invention is to prevent the supply of dialysis stock solution from being insufficient during the operation of the apparatus, and to reduce the amount of the dialysis stock solution remaining in the apparatus when the operation of the apparatus is terminated. To provide a simple melting device.
上記目的は本発明に係る溶解装置にて達成される。要約すれば、本発明は、透析用粉末薬剤及び水が供給され、前記薬剤が水で溶解されて調製された透析用原液を収容する溶解槽と、前記溶解槽に前記薬剤及び水を供給し、前記薬剤を水に溶解させて前記原液を調製する調製部と、前記溶解槽から送られた前記原液を収容する貯留槽と、前記溶解槽から前記貯留槽に前記原液を送る送液部と、前記調製部及び前記送液部の制御を行う制御部と、前記貯留槽内の前記原液の水位が所定の第１の水位になった場合に検知信号を前記制御部に入力する検知手段と、を有し、前記貯留槽から供給対象に前記原液を供給する溶解装置において、前記制御部は、前記検知信号を前記貯留槽内の前記原液の水位の下限を示す信号として用い、前記貯留槽内の前記原液の水位が前記第１の水位以上になるように制御を行う第１のモードと、前記検知信号を前記貯留槽内の前記原液の水位の上限を示す信号として用い、前記貯留槽内の前記原液の水位が前記第１の水位以下になるように制御を行う第２のモードと、を切り替えて実行可能であり、前記第１のモードでは、前記検知信号が入力された場合に前記溶解槽に収容されている前記原液の全てを前記貯留槽に送り、その後前記溶解槽で前記原液を調製する、という動作を繰り返させ、前記第２のモードでは、前記貯留槽内の前記原液の水位が前記第１の水位より下がった後に前記溶解槽に収容されている前記原液を前記貯留槽に送り始め、その後前記溶解槽に収容されている前記原液が無くなる前に前記検知信号が入力された場合に前記原液を送ることを停止する、という動作を繰り返させると共に、前記溶解槽内の前記原液が無くなってから前記溶解槽で前記原液を調製する動作を行わせる、ことを特徴とする溶解装置である。 The above object is achieved by the melting apparatus according to the present invention. Briefly, the present invention provides a dialysis powder drug and water, a dissolution tank containing a stock solution for dialysis prepared by dissolving the drug in water, and the dissolution tank containing the drug and water. A preparation unit that dissolves the drug in water to prepare the stock solution; a storage tank that stores the stock solution sent from the dissolution tank; and a liquid sending unit that sends the stock solution from the dissolution tank to the storage tank. a control unit for controlling the preparation portion and the liquid supply unit, a detection unit the water level of the stock solution in said reservoir to enter a detection signal to the controller when it becomes a predetermined first water level In the dissolution apparatus for supplying the stock solution from the storage tank to the supply target, the control unit uses the detection signal as a signal indicating a lower limit of the water level of the stock solution in the storage tank, A first mode in which the water level of the stock solution inside is controlled to be equal to or higher than the first water level, and the detection signal is used as a signal indicating the upper limit of the water level of the stock solution in the storage tank, and a second mode in which the water level of the stock solution of internal is controlled to be below the first level, Ri executable der by switching, in the first mode, when said detection signal is input The operation of sending all of the stock solution stored in the dissolution tank to the storage tank, and then preparing the stock solution in the dissolution tank is repeated, and in the second mode, the stock solution in the storage tank is After the water level of the undiluted solution has dropped below the first water level, the undiluted solution contained in the dissolution tank is started to be sent to the storage tank, and then the detection signal is output before the undiluted solution contained in the dissolution tank runs out. The operation of stopping the sending of the stock solution when input is repeated, and the operation of preparing the stock solution in the dissolution tank is performed after the stock solution in the dissolution tank is exhausted. It is a melting device.
本発明によれば、装置の稼働時に透析用原液の供給不足が生じることを防止すると共に、装置の稼働を終了した時に装置内に残っている透析用原液の量を少なくすることが可能となる。 According to the present invention, it is possible to prevent the supply shortage of the dialysis stock solution at the time of operating the device, and reduce the amount of the dialysis stock solution remaining in the device when the operation of the device is finished. ..
以下、本発明に係る溶解装置を図面に則して更に詳しく説明する。 Hereinafter, the melting apparatus according to the present invention will be described in more detail with reference to the drawings.
［実施例１］
１．溶解装置の構成
図１は、本実施例の溶解装置１の概略構成を示す。本実施例では、溶解装置１は、透析液のＡ剤の濃厚溶液であるＡ原液（透析用原液）を調製するものである。
[Example 1]
1. Configuration of Dissolution Device FIG. 1 shows a schematic configuration of the dissolution device 1 of the present embodiment. In the present embodiment, the dissolution apparatus 1 prepares a stock solution A (stock solution for dialysis) which is a concentrated solution of the agent A in the dialysate.
溶解装置１は、透析用粉末薬剤であるＡ剤及び水（ＲＯ水）が供給され、Ａ剤が水で溶解されて調製された透析用原液であるＡ原液を収容する溶解槽２と、溶解槽２から送られたＡ原液を収容する貯留槽３と、Ａ剤を収容し溶解槽にＡ剤を供給する粉末薬剤供給装置であるホッパー４と、を有する。 The dissolution apparatus 1 is supplied with an agent A which is a powder drug for dialysis and water (RO water), and a dissolution tank 2 which contains an undiluted solution A which is a dialysis undiluted solution prepared by dissolving the agent A with water, and a dissolution tank. It has a storage tank 3 for storing the stock solution A sent from the tank 2 and a hopper 4 which is a powder chemical supply device for storing the chemical agent A and supplying the chemical agent A to the dissolution tank.
溶解槽２には、溶解槽２に供給される水が通る入口管路１８が接続されている。入口管路１８には、液送ポンプである入口ポンプ６と、電磁弁である入口弁７と、が設けられている。また、溶解槽２の底部には、溶解槽２から排出されたＡ原液が通る出口管路２０の一端が接続されている。出口管路２０の他端は貯留槽３に接続されており、途中には環流管路１９が接続されている。出口管路２０は、溶解槽２に接続された一端から環流管路１９の接続個所までの出口管路２０ａと、環流管路１９の接続箇所から貯留槽３に接続された他端までの出口管路２０ｂとにより構成される。出口管路２０ａには液送ポンプである出口ポンプ８が設けられ、出口管路２０ｂには電磁弁である出口弁１０が設けられている。環流管路１９は、出口管路２０ａを介して溶解槽２から排出された液を再度溶解槽２に環流させる。環流管路１９には、電磁弁である環流路弁９が設けられている。溶解槽２で調製されたＡ原液は出口管路２０を通って貯留槽３に送られる。貯留槽３の底部には、貯留槽３から排出されたＡ原液が通る供給管路２１が接続されている。供給管路２１には、液送ポンプである供給ポンプ１１と、電磁弁である供給弁１２と、が設けられている。供給管路２１は、溶解装置１の外部の図示しない透析液供給装置に接続される。 An inlet pipe line 18 through which water supplied to the dissolution tank 2 passes is connected to the dissolution tank 2. The inlet pipe 18 is provided with an inlet pump 6 which is a liquid feed pump and an inlet valve 7 which is a solenoid valve. Further, one end of an outlet pipe 20 through which the stock solution A discharged from the dissolution tank 2 passes is connected to the bottom of the dissolution tank 2. The other end of the outlet pipe line 20 is connected to the storage tank 3, and a reflux pipe line 19 is connected midway. The outlet conduit 20 is an outlet conduit 20a from one end connected to the dissolution tank 2 to the connection point of the reflux conduit 19, and an exit from the connection point of the reflux conduit 19 to the other end connected to the storage tank 3. It is constituted by the conduit 20b. The outlet pipe 20a is provided with an outlet pump 8 which is a liquid feed pump, and the outlet pipe 20b is provided with an outlet valve 10 which is a solenoid valve. The reflux conduit 19 causes the liquid discharged from the dissolution tank 2 via the outlet conduit 20a to recirculate to the dissolution tank 2 again. The return flow passage 19 is provided with a return passage valve 9 which is an electromagnetic valve. The stock solution A prepared in the dissolution tank 2 is sent to the storage tank 3 through the outlet pipe 20. A supply pipe 21 through which the stock solution A discharged from the storage tank 3 passes is connected to the bottom of the storage tank 3. The supply pipe 21 is provided with a supply pump 11 which is a liquid delivery pump and a supply valve 12 which is an electromagnetic valve. The supply line 21 is connected to a dialysate supply device (not shown) outside the dissolution apparatus 1.
また、溶解装置１は、溶解槽２に供給する水を収容する受水槽５を有する。受水槽５の底部には、溶解槽２へと水を供給するための上記入口管路１８が接続されている。受水槽５には、溶解装置１の外部の図示しないＲＯ水製造装置から給水管路２７を介して水が供給される。また、受水槽５には、溶解装置１の外部の図示しない消毒液供給源から給水管路２７を介して消毒液を供給できるようになっている。給水管路２７には、ＲＯ水製造装置からの水の供給を制御する給水弁１５、消毒液供給源からの消毒液の供給を行う消毒液供給ポンプ１６、及び消毒液の供給を制御する消毒液供給弁１７が設けられている。 Further, the dissolving apparatus 1 has a water receiving tank 5 that stores water to be supplied to the dissolving tank 2. The inlet pipe line 18 for supplying water to the dissolution tank 2 is connected to the bottom of the water reception tank 5. Water is supplied to the water receiving tank 5 from an RO water producing device (not shown) outside the dissolving device 1 via a water supply pipe line 27. Further, the water receiving tank 5 can be supplied with a disinfecting solution from a disinfecting solution supply source (not shown) outside the dissolving apparatus 1 through the water supply pipe line 27. In the water supply conduit 27, a water supply valve 15 that controls the supply of water from the RO water manufacturing apparatus, a disinfectant solution supply pump 16 that supplies the disinfectant solution from a disinfectant solution supply source, and a disinfectant that controls the supply of the disinfectant solution. A liquid supply valve 17 is provided.
また、出口管路２０、供給管路２１には、それぞれ洗浄時などの排水のための排水管路２４、２５が接続されており、これらの排水管路２４、２５には電磁弁である排水弁１３、１４がそれぞれ設けられている。また、溶解槽２、貯留槽３、受水槽５には、それぞれオーバーフローした液を排出するためのオーバーフロー管路２２、２３、２６が接続されている。排水管路２４、２５、オーバーフロー管路２２、２３、２６は、それぞれ排水口２８に接続されている。 In addition, drain pipes 24 and 25 for draining water during cleaning and the like are connected to the outlet pipe 20 and the supply pipe 21, respectively, and these drain pipes 24 and 25 are drain valves that are electromagnetic valves. Valves 13 and 14 are provided respectively. Further, overflow pipe lines 22, 23, and 26 for discharging the overflowed liquid are connected to the dissolution tank 2, the storage tank 3, and the water receiving tank 5, respectively. The drainage pipelines 24, 25 and the overflow pipelines 22, 23, 26 are connected to a drainage port 28, respectively.
本実施例では、入口管路１８、入口ポンプ６、入口弁７、ホッパー４、出口管路２０ａ、出口ポンプ８、環流路弁９、環流管路１９などによって、溶解槽２にＡ剤及び水を供給しＡ剤を水に溶解してＡ液を調製する調製部３１が構成される。また、本実施例では、出口管路２０（２０ａ、２０ｂ）、出口ポンプ８、出口弁１０などによって、溶解槽２から貯留槽３にＡ原液を送る送液部３２が構成される。また、本実施例では、供給管路２１、供給ポンプ１１、供給弁１２などによって、貯留槽３からＡ原液を供給対象に供給する供給部３３が構成される。 In the present embodiment, the agent A and the water are added to the dissolution tank 2 by the inlet pipe 18, the inlet pump 6, the inlet valve 7, the hopper 4, the outlet pipe 20a, the outlet pump 8, the return passage valve 9, the return passage 19 and the like. Is prepared and the agent A is dissolved in water to prepare the solution A. Further, in the present embodiment, the outlet conduit 20 (20a, 20b), the outlet pump 8, the outlet valve 10 and the like constitute a liquid sending section 32 that sends the stock A solution from the dissolution tank 2 to the storage tank 3. Further, in the present embodiment, the supply conduit 21, the supply pump 11, the supply valve 12, and the like constitute a supply unit 33 that supplies the stock solution A from the storage tank 3 to the supply target.
なお、特に言及しない場合は、排水弁１３、１４、消毒液供給弁１７は閉じられており、消毒液供給ポンプ１６は停止されており、また給水弁１５の開閉による受水槽５への水の供給は適宜行われて受水槽５には十分な量の水が収容されているものとする。 Unless otherwise specified, the drainage valves 13 and 14, the disinfectant solution supply valve 17 are closed, the disinfectant solution supply pump 16 is stopped, and the water to the water tank 5 is opened and closed by opening and closing the water supply valve 15. It is assumed that the water is appropriately supplied and that the water receiving tank 5 stores a sufficient amount of water.
また、溶解装置１には、溶解装置１の動作を統括制御する制御部５０が設けられている。制御部５０は、演算制御部（ＣＰＵ）、記憶部（ＲＯＭ、ＲＡＭ）などを備えており、演算制御部が記憶部に記憶されたプログラムやデータに従って溶解装置１の各ポンプ、各弁、ホッパー４などの動作を制御して、Ａ原液を調製させ、供給対象としての透析液供給装置にＡ原液を供給させる。また、溶解装置１には、操作部４０が接続されている。操作部４０には、操作者が制御部５０に対して各種設定の入力を行うための入力手段、及び各種設定情報などを表示する表示手段として機能する操作パネルが設けられている。 Further, the melting apparatus 1 is provided with a control unit 50 that integrally controls the operation of the melting apparatus 1. The control unit 50 includes an arithmetic control unit (CPU), a storage unit (ROM, RAM), and the like, and the arithmetic control unit uses the pumps, valves, and hoppers of the melting apparatus 1 in accordance with the programs and data stored in the storage unit. The operations such as 4 are controlled to prepare the A stock solution, and the A stock solution is supplied to the dialysate supply device to be supplied. Further, an operation unit 40 is connected to the dissolving device 1. The operation unit 40 is provided with an input unit for an operator to input various settings to the control unit 50, and an operation panel that functions as a display unit for displaying various setting information.
ここで、溶解槽２の内部には、溶解槽２内の液（水、Ａ原液）の水位を検知するための検知手段として、溶解槽上段フロートスイッチＦ１（以下、単に「スイッチＦ１」という。）、溶解槽下段フロートスイッチＦ２（以下、単に「スイッチＦ２」という。）が設けられている。スイッチＦ１は、スイッチＦ２よりも高い水位を検知する。本実施例では、スイッチＦ１は、溶解槽２内の液の水位が、容量で７．５Ｌに相当する水位になった場合に検知信号を制御部５０に入力する。また、スイッチＦ２は、溶解槽２内の液の水位が、容量で２Ｌに相当する水位になった場合に検知信号を制御部５０に入力する。 Here, in the inside of the dissolution tank 2, as a detection means for detecting the water level of the liquid (water, A stock solution) in the dissolution tank 2, the dissolution tank upper stage float switch F1 (hereinafter, simply referred to as “switch F1”). ), a lower bath float switch F2 (hereinafter simply referred to as “switch F2”) is provided. The switch F1 detects a higher water level than the switch F2. In this embodiment, the switch F1 inputs a detection signal to the control unit 50 when the water level of the liquid in the dissolution tank 2 reaches a water level equivalent to 7.5 L in volume. Further, the switch F2 inputs a detection signal to the control unit 50 when the water level of the liquid in the dissolution tank 2 reaches a water level equivalent to 2 L in volume.
また、貯留槽３の内部には、貯留槽３内の液（Ａ原液）の水位を検知するための検知手段として、貯留槽上段フロートスイッチＦ５（以下、単に「スイッチＦ５」という。）、貯留槽中段フロートスイッチＦ３（以下、単に「スイッチＦ３」という。）、貯留槽下段フロートスイッチＦ４（以下、単に「スイッチＦ４」という。）が設けられている。スイッチＦ５は、スイッチＦ３よりも高い水位を検知し、スイッチＦ３はスイッチＦ４よりも高い水位を検知する。本実施例では、スイッチＦ５は、貯留槽３内の液の水位が、容量で２４Ｌに相当する水位になった場合に検知信号を制御部５０に入力する。また、スイッチＦ３は、貯留槽３内の液の水位が、容量で１５．４Ｌに相当する水位になった場合に検知信号を制御部５０に入力する。また、スイッチＦ４は、貯留槽３内の液の水位が、容量で２．６Ｌに相当する水位になった場合に検知信号を制御部５０に入力する。 Further, inside the storage tank 3, a storage tank upper stage float switch F5 (hereinafter, simply referred to as “switch F5”) and storage are provided as detection means for detecting the water level of the liquid (A stock solution) in the storage tank 3. A middle tank float switch F3 (hereinafter simply referred to as "switch F3") and a storage tank lower float switch F4 (hereinafter simply referred to as "switch F4") are provided. The switch F5 detects a higher water level than the switch F3, and the switch F3 detects a higher water level than the switch F4. In the present embodiment, the switch F5 inputs a detection signal to the control unit 50 when the water level of the liquid in the storage tank 3 reaches a water level equivalent to 24 L in volume. Further, the switch F3 inputs a detection signal to the control unit 50 when the water level of the liquid in the storage tank 3 reaches a water level equivalent to 15.4 L in volume. Further, the switch F4 inputs a detection signal to the control unit 50 when the water level of the liquid in the storage tank 3 reaches a water level equivalent to 2.6 L in volume.
溶解槽２におけるＡ原液の調製は次のようにして行われる。まず、出口弁１０が閉じられ、出口ポンプ８が停止された状態で、入口弁７が開かれ、入口ポンプ６が作動されて、入口管路１８を通して受水槽５から溶解槽２に水が供給される。その後、スイッチＦ１が検知信号を制御部５０に入力すると、入口弁７が閉じられ、入口ポンプ６が停止されると共に、環流路弁９が開かれ、出口ポンプ８が作動される。これにより、溶解槽２内の水は、出口管路２０ａ及び環流管路１９を介して循環され、撹拌される。 The stock solution A in the dissolution tank 2 is prepared as follows. First, the outlet valve 10 is closed, the outlet pump 8 is stopped, the inlet valve 7 is opened, the inlet pump 6 is operated, and water is supplied from the water receiving tank 5 to the dissolving tank 2 through the inlet pipe line 18. To be done. After that, when the switch F1 inputs the detection signal to the control unit 50, the inlet valve 7 is closed, the inlet pump 6 is stopped, the recirculation passage valve 9 is opened, and the outlet pump 8 is operated. As a result, the water in the dissolution tank 2 is circulated and agitated via the outlet conduit 20 a and the reflux conduit 19.
続いて、ホッパー４からＡ剤が溶解槽２内へと連続的に供給される。Ａ剤は、塩化ナトリウム、塩化カリウム、塩化カルシウム、塩化マグネシウム、酢酸ナトリウム、氷酢酸、グルコース（ブドウ糖）を所定の割合で含む粉末状薬剤である。Ａ剤は、循環する水により溶解槽２内にて撹拌、混合される。この時、環流管路１９に設置された図示しない濃度検知手段としての電気伝導率計により環流管路１９内を流動する液の電気伝導率が検出され、制御部５０においてその電気伝導率に基づいてＡ剤の濃度が測定される。制御部５０には、Ａ原液の所定のＡ剤濃度に応じた電気伝導率の目標値が記憶されており、制御部５０は電気伝導率の検出値と目標値とを比較してＡ原液のＡ剤濃度が所定の濃度になった時点でホッパー４から溶解槽２へのＡ剤の供給を停止させる。これにより、所定の濃度のＡ剤を含有するＡ原液が調製される。本実施例では、この１回の調製動作で、８．６ＬのＡ原液が調整される。 Then, the agent A is continuously supplied from the hopper 4 into the dissolution tank 2. The agent A is a powdery medicine containing sodium chloride, potassium chloride, calcium chloride, magnesium chloride, sodium acetate, glacial acetic acid, and glucose (glucose) at a predetermined ratio. The agent A is stirred and mixed in the dissolution tank 2 by the circulating water. At this time, the electric conductivity of the liquid flowing in the recirculation conduit 19 is detected by an electric conductivity meter (not shown) installed in the recirculation conduit 19 as a concentration detecting means, and the controller 50 detects the electric conductivity based on the electric conductivity. Then, the concentration of the agent A is measured. The control unit 50 stores the target value of the electrical conductivity according to the predetermined concentration of the A agent in the A stock solution, and the control unit 50 compares the detected value of the electrical conductivity with the target value to determine the A stock solution. When the concentration of the agent A reaches a predetermined concentration, the supply of the agent A from the hopper 4 to the dissolution tank 2 is stopped. As a result, an A stock solution containing the agent A at a predetermined concentration is prepared. In this example, 8.6 L of A stock solution is prepared by this one-time preparation operation.
このようにして、Ａ原液が調製されると、出口ポンプ８が停止される。そして、溶解槽２内のＡ原液は、後述する所定のタイミングで、環流路弁９が閉じられると共に出口弁１０が開かれ、出口ポンプ８が作動されることで、出口管路２０を通して貯留槽３に送られる。そして、溶解槽２内のＡ原液が実質的に全て貯留槽３に送られると、上述のようなＡ原液の調製動作が繰り返される。 When the stock solution A is prepared in this manner, the outlet pump 8 is stopped. Then, the stock solution A in the dissolution tank 2 passes through the outlet pipe 20 and the storage tank through the outlet passage 8 by closing the circulation passage valve 9 and opening the outlet valve 10 at a predetermined timing described later. Sent to 3. Then, when substantially all the A stock solution in the dissolution tank 2 is sent to the storage tank 3, the above-described A stock solution preparation operation is repeated.
また、貯留槽３内のＡ原液は、供給弁１２が開かれ、供給ポンプ１１が作動されることで、供給管路２１を通して透析液供給装置に供給される。透析液供給装置は、他の溶解装置にて調整されたＢ原液と、本実施例の溶解装置１により調製されたＡ原液と、を水（ＲＯ水）で希釈混合して、所定濃度の透析液を調製する。なお、Ｂ原液は、透析液のＢ剤の濃厚溶液であり、Ｂ剤は炭酸水素ナトリウムの粉末状薬剤である。 Further, the stock solution A in the storage tank 3 is supplied to the dialysate supply device through the supply pipeline 21 by opening the supply valve 12 and operating the supply pump 11. The dialysate supply device dilutes and mixes the B stock solution adjusted by another dissolution apparatus and the A stock solution prepared by the dissolution apparatus 1 of the present embodiment with water (RO water), and dialyzes at a predetermined concentration. Prepare the liquid. The B stock solution is a concentrated solution of the B agent in the dialysate, and the B agent is a powdered drug of sodium hydrogen carbonate.
２．溶解モード
本実施例では、溶解装置１は、溶解槽２でＡ原液を調製して貯留槽３へ送る動作（溶解動作）を、通常モード（第１のモード）とエコモード（第２のモード）との２つの動作モード（溶解モード）のうちいずれかに切り替えて実行できるようになっている。通常モードは、本実施例の溶解装置１のＡ原液の供給能力を最大限利用することを目的とした通常の動作モードである。一方、エコモードは、１日の透析治療の終了時（洗浄、消毒の開始時）に廃棄されるＡ原液の量を少なくすることを目的とした動作モードである。
2. Dissolution Mode In this embodiment, the dissolution apparatus 1 prepares the stock solution A in the dissolution tank 2 and sends it to the storage tank 3 (dissolution operation) in the normal mode (first mode) and the eco mode (second mode). ) And the two operation modes (dissolution mode). The normal mode is a normal operation mode for the purpose of maximizing the supply capacity of the stock solution A of the dissolving apparatus 1 of this embodiment. On the other hand, the eco mode is an operation mode for the purpose of reducing the amount of the stock solution A that is discarded at the end of the dialysis treatment on the day (when starting the cleaning and disinfection).
まず、通常モードについて説明する。図２は、通常モードの動作の概略を示すフローチャートである。なお、１日の透析治療を開始する際には、通常モードで溶解動作が開始され、前述のようにして溶解槽２でＡ原液を調製するごとに貯留槽３にＡ原液を送る動作が２回繰り返され、溶解槽には３回目のＡ原液が調製される。図２は、このように貯留槽３の水位が一度スイッチＦ３を超えた後の動作の概略を示している。 First, the normal mode will be described. FIG. 2 is a flowchart showing the outline of the operation in the normal mode. When starting the dialysis treatment for one day, the dissolving operation is started in the normal mode, and the A stock solution is sent to the storage tank 3 every time the A stock solution is prepared in the dissolving tank 2 as described above. This is repeated once, and the stock solution A for the third time is prepared in the dissolution tank. FIG. 2 schematically shows the operation after the water level of the storage tank 3 once exceeds the switch F3 in this way.
貯留槽３からＡ原液が消費され、貯留槽３内のＡ原液の水位がスイッチＦ３の位置まで下がると、スイッチＦ３から制御部５０に検知信号が入力される（Ｓ１０１）。通常モードでは、制御部５０は、スイッチＦ３から検知信号が入力されると、所定時間（本実施例では１秒）待ってから溶解槽２内のＡ原液を全て貯留槽３に送らせる（Ｓ１０２）。ここで所定時間待つのは、スイッチＦ３の誤検知を防止するためであり、この所定時間は１秒に限定されるものではない。制御部５０は、この所定時間内にスイッチＦ３からの検知信号が変化した場合には（すなわち、貯留槽３内のＡ原液の水位はスイッチＦ３の位置よりも上）、次にスイッチＦ３の検知信号が入力されるまで待機する。そして、制御部５０は、溶解槽２から貯留槽３へＡ原液を全て送り終わったら、前述のようにして溶解槽２において新たにＡ原液の調製を開始させる。 When the A stock solution is consumed from the storage tank 3 and the water level of the A stock solution in the storage tank 3 drops to the position of the switch F3, a detection signal is input from the switch F3 to the control unit 50 (S101). In the normal mode, when the detection signal is input from the switch F3, the control unit 50 waits for a predetermined time (1 second in this embodiment) and then sends all the stock solution A in the dissolution tank 2 to the storage tank 3 (S102). ). Here, the predetermined time is waited to prevent erroneous detection of the switch F3, and the predetermined time is not limited to 1 second. When the detection signal from the switch F3 changes within this predetermined time (that is, the water level of the stock solution A in the storage tank 3 is higher than the position of the switch F3), the control unit 50 then detects the switch F3. Wait until the signal is input. Then, when the control unit 50 has completely sent the A stock solution from the dissolution tank 2 to the storage tank 3, it newly starts the preparation of the A stock solution in the dissolution tank 2 as described above.
このように、通常モードでは、制御部５０は、スイッチＦ３の検知信号を貯留槽３内のＡ原液の水位の下限を示す信号として用い、貯留槽３内のＡ原液の水位がスイッチＦ３が検知する所定の水位以上になるように制御を行う。ここで、検知信号を水位の下限を示す信号として用いて所定の水位以上になるように制御するとは、該所定の水位以上となることを目標として制御することを意味し、所定の手順に従って動作する間に水位が該所定の水位より下になる期間があることを妨げない。そして、通常モードでは、制御部５０は、スイッチＦ３の検知信号が入力された場合に溶解槽２に収容されているＡ原液の全てを貯留槽３に送り、その後溶解槽２でＡ原液を調製する、という動作を繰り返させる。通常モードでは、このような動作を行うことで、透析液供給装置や透析装置のウォーミングアップの際に、また１日のうち透析治療のために比較的大量の透析用原液を必要とする時間帯において、透析液供給装置への透析用原液の供給不足が生じることを防止することができる。 As described above, in the normal mode, the control unit 50 uses the detection signal of the switch F3 as a signal indicating the lower limit of the water level of the A stock solution in the storage tank 3, and the switch F3 detects the water level of the A stock solution in the storage tank 3. Control is performed so that the water level is equal to or higher than a predetermined level. Here, using the detection signal as a signal indicating the lower limit of the water level to control the water level to be higher than or equal to a predetermined level means controlling the target to be higher than or equal to the predetermined water level, and operating according to a predetermined procedure. It does not prevent that there is a period during which the water level falls below the predetermined water level. Then, in the normal mode, when the detection signal of the switch F3 is input, the control unit 50 sends all of the A stock solution contained in the dissolution tank 2 to the storage tank 3, and then prepares the A stock solution in the dissolution tank 2. Repeat the action of doing. In the normal mode, by performing such an operation, when warming up the dialysate supply device and the dialyzer, and during the time period when a relatively large amount of dialysate stock solution is required for dialysis treatment during the day. It is possible to prevent the insufficient supply of the dialysate stock solution to the dialysate supply device.
しかし、前述のように、１日の透析治療の終盤などの透析用原液の消費量が少なくなる時間帯では、通常モードでの溶解動作を行うと、１日の透析治療が終了した時点で、大量の透析用原液が溶解装置内に残り、無駄になってしまうことがある。 However, as described above, in the time zone when the amount of undiluted solution for dialysis such as the end of the daily dialysis treatment is low, when the dissolution operation in the normal mode is performed, when the daily dialysis treatment is completed, A large amount of undiluted solution for dialysis may remain in the dissolution apparatus and be wasted.
そこで、本実施例では、溶解装置１は、１日の透析治療の終盤などの透析用原液の消費量が少なくなった時間帯などに、エコモード（第２のモード）での溶解動作を選択できるようになっている。図３は、エコモードの動作の概略を示すフローチャートである。なお、溶解モードの選択方法については後述する。 Therefore, in the present embodiment, the dissolution apparatus 1 selects the dissolution operation in the eco mode (second mode) during a time period when the consumption of the undiluted solution for dialysis is low, such as at the end of the daily dialysis treatment. You can do it. FIG. 3 is a flowchart showing the outline of the operation in the eco mode. The method of selecting the dissolution mode will be described later.
エコモードでの溶解動作が開始される際には、それまでに通常モードでの溶解動作が行われているので、貯留槽３内のＡ原液の水位がスイッチＦ３の位置以上になるように溶解槽２から貯留槽３にＡ原液が供給されている。貯留槽３内のＡ原液が消費され、貯留槽３内のＡ原液の水位がスイッチＦ３の位置まで下がると、スイッチＦ３から制御部５０に検知信号が入力される（Ｓ２０１）。エコモードでは、制御部５０は、スイッチＦ３から検知信号が入力されると、所定時間（本実施例では１分）経過するのを待つ（Ｓ２０２）。ここで所定時間待つのは、スイッチＦ３の誤検知を防止すると共に、貯留槽３内のＡ原液がある程度消費されるのを待つためであり、この所定時間は１分に限定されるものではない。そして、制御部５０は、この所定時間内にスイッチＦ３からの検知信号が変化しない場合には（すなわち、貯留槽３内のＡ原液の水位はスイッチＦ３の位置よりも下）、溶解槽２から貯留槽３へＡ原液を送り始める（Ｓ２０３）。その後、制御部５０は、溶解槽２内のスイッチＦ２から検知信号が入力されずに（Ｓ２０４）、貯留槽３内のＡ原液の水位がスイッチＦ３の位置まで上がりスイッチＦ３から検知信号が入力された場合には（Ｓ２０５）、所定時間（本実施例では１秒）待ってから溶解槽２から貯留槽３へＡ原液を送ることを停止（中断）する（Ｓ２０６）。ここで所定時間待つのは、スイッチＦ３の誤検知を防止するためであり、この所定時間は１秒に限定されるものではない。制御部５０は、この所定時間内にスイッチＦ３からの検知信号が変化した場合には（すなわち、貯留槽３内のＡ原液の水位はスイッチＦ３の位置よりも下）、次にスイッチＦ３の検知信号が入力されるまで溶解槽２から貯留槽３へＡ原液を送ることを継続させる。一方、制御部５０は、Ｓ２０３にて溶解槽２から貯留槽３へＡ原液を送り始めた後、溶解槽２内のスイッチＦ２（別の検知手段）から検知信号（別の検知信号）が入力された場合には（Ｓ２０４）、溶解槽２内に残っているＡ原液を全て貯留槽３に送らせる（Ｓ２０７）。そして、制御部５０は、溶解槽２から貯留槽３へＡ原液を全て送り終わったら、前述のようにして溶解槽２において新たにＡ原液の調製を開始させる。 When the dissolution operation in the eco mode is started, the dissolution operation in the normal mode has been performed by then, so that the water level of the stock solution A in the storage tank 3 is dissolved so as to be equal to or higher than the position of the switch F3. A stock solution is supplied from the tank 2 to the storage tank 3. When the A stock solution in the storage tank 3 is consumed and the water level of the A stock solution in the storage tank 3 drops to the position of the switch F3, a detection signal is input from the switch F3 to the control unit 50 (S201). In the eco mode, when the detection signal is input from the switch F3, the control unit 50 waits for a predetermined time (1 minute in this embodiment) to elapse (S202). Here, the predetermined time is waited to prevent erroneous detection of the switch F3 and to wait until the A stock solution in the storage tank 3 is consumed to some extent, and the predetermined time is not limited to 1 minute. .. Then, when the detection signal from the switch F3 does not change within the predetermined time (that is, the water level of the stock solution A in the storage tank 3 is lower than the position of the switch F3), the control unit 50 outputs the solution from the dissolution tank 2. The stock solution A is started to be sent to the storage tank 3 (S203). Thereafter, in the control unit 50, the detection signal is not input from the switch F2 in the dissolution tank 2 (S204), the water level of the stock solution A in the storage tank 3 rises to the position of the switch F3, and the detection signal is input from the switch F3. In the case (S205), a predetermined time (1 second in this embodiment) is waited, and then the sending of the stock solution A from the dissolution tank 2 to the storage tank 3 is stopped (interrupted) (S206). Here, the predetermined time is waited to prevent erroneous detection of the switch F3, and the predetermined time is not limited to 1 second. When the detection signal from the switch F3 changes within the predetermined time (that is, the water level of the stock solution A in the storage tank 3 is lower than the position of the switch F3), the control unit 50 detects the switch F3 next. The A stock solution is continuously sent from the dissolution tank 2 to the storage tank 3 until a signal is input. On the other hand, the control unit 50 inputs the detection signal (another detection signal) from the switch F2 (another detection means) in the dissolution tank 2 after starting to send the A stock solution from the dissolution tank 2 to the storage tank 3 in S203. If it is (S204), all the stock solution A remaining in the dissolution tank 2 is sent to the storage tank 3 (S207). Then, when the control unit 50 has completely sent the A stock solution from the dissolution tank 2 to the storage tank 3, it newly starts the preparation of the A stock solution in the dissolution tank 2 as described above.
このように、エコモードでは、制御部５０は、スイッチＦ３の検知信号を貯留槽３内のＡ原液の水位の上限を示す信号として用い、貯留槽３内のＡ原液の水位がスイッチＦ３が検知する所定の水位以下になるように制御を行う。ここで、検知信号を水位の上限を示す信号として用いて所定の水位以下になるように制御するとは、該所定の水位以下となることを目標として制御することを意味し、所定の手順に従って動作する間に水位が該所定の水位より上になる期間があることを妨げない。そして、エコモードでは、制御部５０は、貯留槽３内のＡ原液の水位がスイッチＦ３が検知する所定の水位より下がった後に溶解槽２に収容されているＡ原液を貯留槽３に送り始め、その後スイッチＦ３の検知信号が入力された場合にＡ原液を送ることを停止する動作を繰り返させる。その後、制御部５０は、溶解槽２内のＡ原液が無くなってから溶解槽２でＡ原液を調製する動作を行わせる。エコモードでは、このような動作を行うことで、溶解装置１の稼働を終了した時に溶解装置１内に残っているＡ原液の量を、通常モードよりも最大で１回の調製動作分、すなわち、本実施例では８．６Ｌ分少なくすることができる。したがって、１日の透析治療の終盤などの透析用原液の消費量が少なくなった時点で溶解モードを通常モードからエコモードに切り替えることで、１日の透析治療の終了時（洗浄、消毒の開始時）に廃棄されるＡ原液の量を少なくすることができる。 As described above, in the eco mode, the control unit 50 uses the detection signal of the switch F3 as a signal indicating the upper limit of the water level of the A stock solution in the storage tank 3, and the switch F3 detects the water level of the A stock solution in the storage tank 3. Control is performed so that the water level is below a predetermined level. Here, using the detection signal as a signal indicating the upper limit of the water level to control the water level to be equal to or lower than the predetermined water level means controlling the target to be equal to or lower than the predetermined water level, and operating according to a predetermined procedure. It does not prevent that there is a period during which the water level rises above the predetermined water level. Then, in the eco mode, the control unit 50 starts sending the A stock solution stored in the dissolution tank 2 to the storage tank 3 after the water level of the A stock solution in the storage tank 3 has dropped below a predetermined water level detected by the switch F3. After that, when the detection signal of the switch F3 is input, the operation of stopping the feeding of the stock solution A is repeated. After that, the control unit 50 causes the dissolving tank 2 to perform the operation of preparing the A stock solution after the stock A solution in the dissolving tank 2 is exhausted. In the eco mode, by performing such an operation, the amount of the stock solution A remaining in the dissolving device 1 when the operation of the dissolving device 1 is finished can be adjusted by a maximum of one preparation operation, that is, In this embodiment, it can be reduced by 8.6L. Therefore, by switching the dissolution mode from the normal mode to the eco mode when the amount of undiluted solution for dialysis becomes low, such as at the end of one day of dialysis treatment, at the end of one day of dialysis treatment (start of cleaning and disinfection) It is possible to reduce the amount of undiluted solution A that is discarded at the time.
また、本実施例では、制御部５０は、エコモードでは、スイッチＦ２の検知信号（別の検知信号）が入力された場合に溶解槽２に収容されているＡ原液の全てを貯留槽３に送り、その後溶解槽２でＡ原液を調製する動作を行わせる。このような動作を行うことで、エコモードにおいても、透析液供給装置への透析用原液の供給不足が生じることを防止することができる。 Further, in the present embodiment, in the eco mode, the control unit 50 stores all of the stock solution A stored in the dissolution tank 2 in the storage tank 3 when the detection signal of the switch F2 (another detection signal) is input. After sending, the operation of preparing the stock solution A in the dissolution tank 2 is performed. By performing such an operation, it is possible to prevent the insufficient supply of the dialysis stock solution to the dialysis solution supply device even in the eco mode.
なお、本実施例では、通常モードでは、制御部５０は、スイッチＦ３から検知信号が入力されてから所定時間（例えば数十秒）経過しても検知信号が変化しない場合には（すなわち、貯留槽３内のＡ原液の水位がスイッチＦ３の位置よりも下）、操作部４０などにおいてＡ原液の供給不足になる旨の警報を発生させる。また、エコモードでは、制御部５０は、スイッチＦ３から検知信号が入力されてから所定時間（例えば数分〜十数分）経過しても検知信号が変化しない場合には（すなわち、貯留槽３内のＡ原液の水位がスイッチＦ３の位置よりも下）、操作部４０などにおいてＡ原液の供給不足になる旨の警報を発生させる。このエコモードの場合の所定時間は、前述の１分の待ち時間に溶解槽２における１バッチ分のＡ原液の調製にかかる時間（給水や送液にかかる時間を含む。）を加算したものであることが好ましい。 In addition, in the present embodiment, in the normal mode, when the detection signal does not change even after a predetermined time (for example, several tens of seconds) has elapsed since the detection signal was input from the switch F3 (that is, the storage The water level of the stock solution A in the tank 3 is lower than the position of the switch F3), and an alarm indicating that the supply of the stock solution A is insufficient is generated in the operation unit 40 or the like. Further, in the eco mode, when the detection signal does not change after a predetermined time (for example, several minutes to several tens of minutes) has elapsed since the detection signal was input from the switch F3 (that is, the storage tank 3). The water level of the A stock solution inside is lower than the position of the switch F3), and an alarm indicating that the supply of the A stock solution is insufficient is generated in the operation unit 40 or the like. The predetermined time in the case of this eco mode is the above-mentioned waiting time of 1 minute plus the time required to prepare the stock solution A for one batch in the dissolution tank 2 (including the time required to supply water and liquid). Preferably.
さらに、本実施例では、制御部５０は、通常モード、エコモードのいずれにおいても、上記供給不足の警報を発生する前に貯留槽３内のスイッチＦ４から検知信号が入力された場合には、操作部４０などにおいてＡ原液の供給を停止する旨の警報を発生させると共に、制御部５０と通信可能に接続されている透析液供給装置に送液を停止させるための信号を送信する。 Further, in the present embodiment, the control unit 50, in both the normal mode and the eco mode, when the detection signal is input from the switch F4 in the storage tank 3 before the alarm of the supply shortage is issued, An alarm indicating that the supply of the stock solution A is stopped is generated in the operation unit 40 and the like, and a signal for stopping the liquid supply is transmitted to the dialysate supply device communicatively connected to the control unit 50.
１日の透析治療が終了し、溶解装置１の溶解動作を停止した後には、通常、溶解装置１の洗浄、消毒が行われる。このとき、制御部５０により各ポンプ、各弁の動作が適宜制御されて、受水槽５、溶解槽２、貯留槽３、各管路、各ポンプ及び各弁を通して水が流されて水洗が行われた後に、排水口２８から排液が排出される。また、その後、同様に消毒液が流されて消毒が行われた後に、排水口２８から排液が排出される。そしてさらに、同様に水が流されて水洗が行われた後に、排水口２８から排液が排出される。 After the dialysis treatment for one day is completed and the dissolving operation of the dissolving device 1 is stopped, the dissolving device 1 is normally washed and disinfected. At this time, the operation of each pump and each valve is appropriately controlled by the control unit 50, and water is flowed through the water receiving tank 5, the dissolution tank 2, the storage tank 3, each pipeline, each pump, and each valve to perform washing. After being broken, the drainage 28 discharges the drainage. After that, after the disinfectant solution is similarly flown to perform the disinfection, the waste solution is discharged from the drain port 28. Further, similarly, after water is made to flow and washing is performed, drainage is discharged from the drain port 28.
３．モード設定
次に、本実施例における溶解モードの選択方法について説明する。図４は、溶解装置１の操作部４０に表示されるタッチ操作可能な画面の模式図である。操作者は、溶解モードの選択を行う場合、操作部４０に表示された図４（ａ）に示すような各種設定画面を呼び出すためのボタン（表示領域）のうち溶解モード設定ボタン４１を押す。すると、図４（ｂ）に示すような溶解モードを選択するための溶解モード設定画面４２が操作部４０に表示される。操作者は、溶解モード設定画面４２の通常モードボタン４３、エコモードボタン４４のいずれかを押すことによって、それぞれ通常モード、エコモードのいずれかで溶解動作を制御するように制御部５０に指示を入力することができる。
3. Mode Setting Next, a method of selecting a melting mode in this embodiment will be described. FIG. 4 is a schematic diagram of a touch-operable screen displayed on the operation unit 40 of the dissolution apparatus 1. When selecting the melting mode, the operator presses the melting mode setting button 41 among the buttons (display area) for displaying various setting screens displayed on the operation unit 40 as shown in FIG. 4A. Then, the melting mode setting screen 42 for selecting the melting mode as shown in FIG. 4B is displayed on the operation unit 40. By pressing either the normal mode button 43 or the eco mode button 44 of the melting mode setting screen 42, the operator instructs the control unit 50 to control the melting operation in either the normal mode or the eco mode. You can enter.
ここで、１日の透析治療の終盤などの透析用原液の消費量が少なくなった時点で溶解モードを通常モードからエコモードに切り替えた場合、通常、翌日の透析治療の開始のときまでに通常モードに戻す必要がある。前述のように、溶解装置１の始動時には、透析液供給装置や透析装置のウォーミングアップなどのために比較的大量の透析用原液の供給が必要となるためである。溶解モードの設定をエコモードから通常モードに戻すのを忘れると、エコモードでの最大供給量（単位時間当たりに供給することができる透析用原液の容量の最大値）を超えた場合に、透析用原液の供給不足や供給停止が発生する可能性がある。そこで、本実施例の溶解装置１は、この溶解モードの設定の戻し忘れを防止する目的で、エコモードの実行中に溶解装置１の動作が停止された際に自動的に溶解モードの設定をエコモードから通常モードに戻す設定（エコモード自動解除設定）を選択できるようになっている。操作者は、図４（ｂ）に示すような溶解モード設定画面４２に表示された設定手段としてのエコモード自動解除設定ボタン４５のうちＯＮボタン４５ａを押すことで、エコモード自動解除設定を有効にする指示を制御部５０に入力することができる。一方、エコモード自動解除設定ボタン４５のうちＯＦＦボタン４５ｂを押すことで、エコモード自動解除設定を無効にする指示を制御部５０に入力することができる。 Here, if the dissolution mode is switched from the normal mode to the eco mode at the time when the consumption of the dialysis stock solution at the end of the day's dialysis treatment becomes low, it is usually normal until the start of the next day's dialysis treatment. Need to switch back to mode. This is because, as described above, it is necessary to supply a relatively large amount of undiluted solution for dialysis at the time of starting the dissolution apparatus 1 in order to warm up the dialysate supply apparatus and the dialyzer. If you forget to change the setting of the dissolution mode from eco mode to normal mode, if you exceed the maximum supply amount in eco mode (maximum volume of dialysis stock solution that can be supplied per unit time), dialysis There is a possibility that supply of stock solution will be insufficient or supply will stop. Therefore, the melting apparatus 1 of the present embodiment automatically sets the melting mode when the operation of the melting apparatus 1 is stopped during the execution of the eco mode, for the purpose of preventing forgetting to reset the setting of the melting mode. You can select the setting to return from the eco mode to the normal mode (eco mode automatic release setting). The operator activates the eco-mode automatic release setting by pressing the ON button 45a of the eco-mode automatic release setting button 45 as the setting means displayed on the melting mode setting screen 42 as shown in FIG. 4B. It is possible to input an instruction to switch to the control unit 50. On the other hand, by pressing the OFF button 45b of the eco-mode automatic cancellation setting button 45, an instruction to invalidate the eco-mode automatic cancellation setting can be input to the control unit 50.
また、上述のように溶解モードを手動で切り替える代わりに、予定を設定して、設定された時間に自動的に切り替えるようにしてもよい。例えば、翌日の時間ごとの患者数などが分かっている場合に、翌日に溶解モードを通常モードからエコモードに自動的に切り替える時間を設定することができる。また、１日の透析治療の終盤など定常的に透析用原液の消費量が少なくなることが分かっている場合などに、定常的に１日の特定の時間で溶解モードを通常モードからエコモードに自動的に切り替えるように設定することができる。このように溶解モードを自動的に切り替える場合も、上述のエコモード自動解除設定を有効にすることで、溶解装置１の停止時に自動的に溶解モードをエコモードから通常モードに戻すことができる。 Further, instead of manually switching the melting mode as described above, a schedule may be set and the melting mode may be automatically switched at the set time. For example, when the number of patients per hour on the next day is known, the time to automatically switch the dissolution mode from the normal mode to the eco mode can be set on the next day. Also, when it is known that the amount of undiluted solution for dialysis constantly decreases, such as at the end of a day's dialysis treatment, the dissolution mode is constantly changed from the normal mode to the eco mode at a specific time of the day. It can be set to switch automatically. Even when the melting mode is automatically switched in this way, the melting mode can be automatically returned from the eco mode to the normal mode when the melting device 1 is stopped by enabling the above-described eco mode automatic cancellation setting.
また、溶解装置１の制御部５０と通信可能に接続された外部装置（透析液供給装置、透析装置、あるいはパーソナルコンピュータなど）から、溶解モードを切り替える信号（外部信号）を制御部５０に入力できるようになっていてもよい。さらに、エコモードを実行中に溶解装置から供給対象への原液の供給が停止された場合や、エコモードに設定された後に、洗浄、消毒が行われた場合には、自動的に通常モードに切り替わるようになっていてもよい。 Further, a signal (external signal) for switching the dissolution mode can be input to the control unit 50 from an external device (dialysate supply device, dialysis device, personal computer, or the like) communicatively connected to the control unit 50 of the dissolution device 1. It may be like this. In addition, if the stock solution supply from the melting device to the supply target is stopped during execution of the eco mode, or if cleaning or disinfection is performed after the eco mode is set, the normal mode is automatically set. It may be switched.
以上のように、本実施例によれば、溶解装置１の稼働時に透析用原液の供給不足が生じることを防止すると共に、溶解装置１の稼働を終了した時に装置内に残っている透析用原液の量を少なくすることが可能となる。 As described above, according to the present embodiment, it is possible to prevent the insufficient supply of the dialysis stock solution during the operation of the dissolution apparatus 1 and to keep the dialysis stock solution remaining in the apparatus when the operation of the dissolution apparatus 1 is terminated. It is possible to reduce the amount of.
［他の実施例］
以上、本発明を具体的な実施例に即して説明したが、本発明は上述の実施例に限定されるものではない。
[Other embodiments]
Although the present invention has been described with reference to the specific embodiments, the present invention is not limited to the above embodiments.
上述の実施例では、溶解装置は透析液のＡ剤の濃厚溶液であるＡ原液を調製して供給対象に供給するものであったが、透析液のＢ剤の濃厚溶液であるＢ原液を調製して供給対象に供給するものであってもよい。例えば、上述の実施例で説明したＡ原液を調製し供給する溶解装置と共に用いる場合、Ｂ原液を調製し供給する溶解装置の溶解槽は上述の実施例のものと同じとし、貯留槽はスイッチＦ５、Ｆ３、Ｆ４をそれぞれ容量で１８．９Ｌ、９．６Ｌ、２．６Ｌに相当する水位を検知するように設けたものとすることができる。また、Ａ剤はＡ−１剤、Ａ−２剤の２剤に分かれているものであってもよい。この場合も、Ａ−１剤（Ａ剤からグルコース成分を除いたもの）、Ａ−２剤（Ａ剤のグルコース成分）を順次溶解槽に投入して所定のＡ原液を調製する方法が公知であり、上述の実施例における溶解モードを同様に適用することができる。また、溶解装置は、Ａ−１剤、Ａ−２剤の水溶液をそれぞれ単独で調製して供給対象に供給するものであってもよい。 In the above-described embodiment, the dissolving device prepares the stock solution A which is a concentrated solution of the agent A in the dialysate and supplies it to the supply target. However, the stock solution which is a concentrated solution of the agent B in the dialysate is prepared. It may be supplied to the supply target. For example, when used with the dissolution apparatus for preparing and supplying the stock solution A described in the above-mentioned embodiment, the dissolution tank of the dissolution apparatus for preparing and supplying the stock solution B is the same as that of the above-described embodiment, and the storage tank is the switch F5. , F3, and F4 can be provided so as to detect water levels corresponding to 18.9 L, 9.6 L, and 2.6 L in capacity, respectively. The agent A may be divided into two agents, agent A-1 and agent A-2. Also in this case, a method of preparing a predetermined A stock solution by sequentially adding the A-1 agent (the agent A minus the glucose component) and the A-2 agent (the glucose component of the A agent) to the dissolution tank is known. Yes, the dissolution mode in the above embodiments can be applied as well. Further, the dissolution apparatus may be one that separately prepares an aqueous solution of the agent A-1 and the agent A-2 and supplies the aqueous solution to the supply target.
また、上述の実施例では、溶解装置は単独で構成され、別途用意される透析液供給装置に透析用原液を供給するものとして説明したが、本発明の溶解装置は透析液供給装置や透析装置と一体とされていたり、特定の透析液供給装置や透析装置とセットで用いられるようになっていたりしてもよい。つまり、本発明の溶解装置は透析システムの一部を構成することができる。 Further, in the above-described embodiment, the lysing apparatus is configured as a single unit, and the dialysis solution supply apparatus separately prepared is described as supplying the dialyzing stock solution. However, the lysis apparatus of the present invention is a dialysis solution supply apparatus or a dialysis apparatus. It may be integrated with or may be adapted to be used as a set with a specific dialysate supply device or dialyzer. That is, the dissolution apparatus of the present invention can form part of a dialysis system.
１ 溶解装置
２ 溶解槽
３ 貯留槽
４ ホッパー
５ 受水槽
Ｆ１〜Ｆ５ フロートスイッチ
３１ 調製部
３２ 送液部
４０ 操作部
５０ 制御部
DESCRIPTION OF SYMBOLS 1 Dissolution device 2 Dissolution tank 3 Storage tank 4 Hopper 5 Water receiving tank F1-F5 Float switch 31 Preparation section 32 Liquid sending section 40 Operation section 50 Control section
Claims (3)
前記溶解槽に前記薬剤及び水を供給し、前記薬剤を水に溶解させて前記原液を調製する調製部と、
前記溶解槽から送られた前記原液を収容する貯留槽と、
前記溶解槽から前記貯留槽に前記原液を送る送液部と、
前記調製部及び前記送液部の制御を行う制御部と、
前記貯留槽内の前記原液の水位が所定の第１の水位になった場合に検知信号を前記制御部に入力する検知手段と、を有し、
前記貯留槽から供給対象に前記原液を供給する溶解装置において、
前記制御部は、
前記検知信号を前記貯留槽内の前記原液の水位の下限を示す信号として用い、前記貯留槽内の前記原液の水位が前記第１の水位以上になるように制御を行う第１のモードと、前記検知信号を前記貯留槽内の前記原液の水位の上限を示す信号として用い、前記貯留槽内の前記原液の水位が前記第１の水位以下になるように制御を行う第２のモードと、を切り替えて実行可能であり、
前記第１のモードでは、前記検知信号が入力された場合に前記溶解槽に収容されている前記原液の全てを前記貯留槽に送り、その後前記溶解槽で前記原液を調製する、という動作を繰り返させ、
前記第２のモードでは、前記貯留槽内の前記原液の水位が前記第１の水位より下がった後に前記溶解槽に収容されている前記原液を前記貯留槽に送り始め、その後前記溶解槽に収容されている前記原液が無くなる前に前記検知信号が入力された場合に前記原液を送ることを停止する、という動作を繰り返させると共に、前記溶解槽内の前記原液が無くなってから前記溶解槽で前記原液を調製する動作を行わせる、
ことを特徴とする溶解装置。 A dissolution tank containing a dialysis powder drug and water, and containing a dialysis stock solution prepared by dissolving the drug with water,
A preparation unit that supplies the drug and water to the dissolution tank, and dissolves the drug in water to prepare the stock solution,
A storage tank for storing the stock solution sent from the dissolution tank,
A liquid sending unit that sends the stock solution from the dissolution tank to the storage tank,
A control unit that controls the preparation unit and the liquid feeding unit ,
Anda detection means for inputting to the controller a detection signal when the water level of the stock solution in said reservoir reaches a predetermined first water level,
In the dissolution apparatus that supplies the stock solution from the storage tank to the supply target,
The control unit is
A first mode in which the detection signal is used as a signal indicating the lower limit of the water level of the stock solution in the storage tank, and the control is performed so that the water level of the stock solution in the storage tank is equal to or higher than the first water level, A second mode in which the detection signal is used as a signal indicating the upper limit of the water level of the stock solution in the storage tank, and the water level of the stock solution in the storage tank is controlled to be equal to or lower than the first water level, Ri executable der by switching,
In the first mode, when the detection signal is input, all of the stock solution contained in the dissolution tank is sent to the storage tank, and then the stock solution is prepared in the dissolution tank. Let
In the second mode, after the water level of the stock solution in the storage tank falls below the first water level, the stock solution stored in the dissolution tank is started to be sent to the storage tank, and then stored in the dissolution tank. When the detection signal is input before the undiluted solution is exhausted, the operation of sending the undiluted solution is stopped and the operation is repeated, and the undissolved solution in the dissolution tank is exhausted before the dissolution in the dissolution tank. Perform the operation of preparing the stock solution,
A melting device characterized by the above.
前記制御部は、前記第２のモードでは、前記別の検知信号が入力された場合に前記溶解槽に収容されている前記原液の全てを前記貯留槽に送り、その後前記溶解槽で前記原液を調製する動作を行わせることを特徴とする請求項１に記載の溶解装置。 The dissolution apparatus has another detection means that outputs another detection signal when the water level of the stock solution in the dissolution tank reaches a predetermined second water level,
In the second mode, the control unit sends all of the stock solution stored in the dissolution tank to the storage tank when the other detection signal is input, and then the stock solution is stored in the dissolution tank. The dissolving apparatus according to claim 1, wherein the dissolving operation is performed.
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