JP2016106905A - Blood purification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blood purification system capable of supplying a dialysate solution to a large number of patients efficiently and correspondingly to a different condition of each patient.SOLUTION: A blood purification system includes: a plurality of blood purification means 1 attached with a blood purifier for applying blood purification treatment to patients; dialysate solution supply means 2 capable of supplying a dialysate solution to each of the blood purification means 1; and supply flow passages H, H1 and H2 for circulating and supplying a dialysate solution from the dialysate solution supply means 2 to the blood purification means 1. Injection means B1 and B2 capable of injecting specific components into a dialysate solution which is circulated in the supply flow passages H1 and H2 are connected to the middle of the supply flow passages H1 and H2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blood purification system comprising a plurality of blood purification means to which a blood purification device for performing blood purification treatment on a patient is attached, and a dialysate supply means capable of supplying a dialysate to each of the blood purification means. It is about.

  In general, in a blood purification system, dialysate supply means is installed in a machine room at a medical site such as a hospital, blood purification means (dialysis monitoring device) is installed in a dialysis room (treatment room), and these dialysate supplies are provided. The means and the blood purification means are connected by a pipe. The dialysate supply means prepares a dialysate having a predetermined concentration, and a plurality of blood purification means are provided with blood purifiers (dialyzers) for performing dialysis treatment on a patient, and are prepared by the dialysate supply means. Blood purification treatment (dialysis treatment) is performed by introducing the dialysate through a pipe and supplying it to a blood purifier.

  That is, the dialysate supply means installed in the machine room is distributed to a plurality of blood purification means installed in the dialysis room and the dialysate is sent, and the dialysate is supplied to the dialyzer in each blood purification means for treatment. Is configured to be performed. The blood purification system for supplying the dialysate prepared by the dialysate supply means to each monitoring device for dialysis is generally referred to as “dialysis treatment central system”. The thing which was done is mentioned. According to such a conventional blood purification system, the dialysate prepared in a batch by the dialysate supply means is distributed to the patients in each blood purification means, and blood purification treatment is performed. Blood purification treatment can be performed.

JP 2012-249750 A

  However, in the above conventional blood purification system, the dialysate prepared in a batch by the dialysate supply means is distributed to each blood purification means to perform blood purification treatment, so the supplied dialysate has the same composition It was difficult to supply dialysate corresponding to different conditions (patient conditions, treatment methods, etc.) for each patient. Various personal blood purification means for supplying dialysate to one patient have been proposed, but such personal blood purification means efficiently supplies dialysate to a large number of patients. It becomes difficult.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a blood purification system capable of supplying a dialysate efficiently corresponding to a different state for each patient to a large number of patients. .

  The invention according to claim 1 is a plurality of blood purification means to which a blood purification device for performing blood purification treatment on a patient is attached, dialysate supply means capable of supplying dialysate to each of the blood purification means, A blood purification system comprising a supply flow path for supplying the dialysate to each blood purification means from the dialysate supply means, and the dialysate flowing through the supply flow path in the middle of the supply flow path An injection means capable of injecting a specific component is connected to this.

  According to a second aspect of the present invention, in the blood purification system according to the first aspect, the supply flow path is branched into a plurality of branches, and the blood purification means is disposed in each of the branched supply flow paths. The injection means is connected to an arbitrary supply channel.

  According to a third aspect of the present invention, in the blood purification system according to the first or second aspect, the blood purification system is a predetermined part of the supply flow path, where the blood purification means is disposed on the upstream side and the downstream side, respectively. The injection means is connected.

  According to a fourth aspect of the present invention, in the blood purification system according to any one of the first to third aspects, during the blood purification treatment, the concentration of the individual components contained in the dialysate flowing through the supply channel is determined over time. It is characterized by having a concentration measuring means capable of measuring automatically.

  According to a fifth aspect of the present invention, in the blood purification system according to the fourth aspect, the concentration measuring means is connected to the upstream side and the downstream side of the injecting means in the supply flow path, and is measured by each concentration measuring means. It is possible to compare the concentrations of the individual components.

  A sixth aspect of the present invention is the blood purification system according to any one of the first to fifth aspects, wherein the injecting unit includes a storing unit that stores a medicine containing the specific component, the storing unit, A connection flow path connecting the supply flow path, and an infusion pump disposed in the connection flow path for feeding a medicine containing a specific component of the storage means into the supply flow path .

  According to the first aspect of the present invention, since the injection means capable of injecting the specific component into the dialysate flowing through the supply channel is connected to the middle of the supply channel, the dialysate in which the specific component is not injected And the dialysate into which the specific component was inject | poured can each be distribute | circulated in a supply flow path, and the dialysate corresponding to the state which is efficiently different for every patient can be supplied to many patients.

  According to the invention of claim 2, the supply flow path branches into a plurality of parts, the blood purification means is disposed in each of the branched supply flow paths, and the injection means is connected to any branched supply flow path Therefore, the dialysis fluid into which the specific component is injected is circulated through the supply flow path to which the injection means is connected, and the dialysis fluid to which the specific component is not injected is circulated through the supply flow path to which the injection means is not connected. Can do.

  According to the invention of claim 3, since the injection means is connected to a predetermined part of the supply flow path where the blood purification means is disposed on the upstream side and the downstream side, the part to which the injection means is connected A dialysis fluid into which a specific component has been injected can be circulated further downstream, and a dialysis fluid to which a specific component has not been injected can be circulated upstream from a site where the injection means is connected.

  According to the fourth aspect of the present invention, the blood purification treatment is provided with the concentration measuring means capable of measuring the concentration of the individual components contained in the dialysate flowing through the supply channel over time. The concentration of the dialysate supplied from the dialysate supply means to the blood purification means can be measured accurately and automatically, and the suitability of the dialysate concentration can be determined more accurately.

  According to the invention of claim 5, since the concentration measuring means is connected to the upstream side and the downstream side of the injection means in the supply flow path, the concentrations of the individual components measured by each concentration measuring means can be compared. It is possible to accurately determine whether or not a specific component has been properly injected by the injection means.

  According to the invention of claim 6, the injection means is disposed in the connection flow path, the storage means for storing the medicine containing the specific component, the connection flow path connecting the storage means and the supply flow path, and the connection flow path. And an injection pump for feeding a medicine containing a specific component of the storage means into the supply channel, so that the specific component can be injected more reliably and smoothly into the dialysate flowing through the supply channel. .

1 is an overall schematic diagram showing a blood purification system according to an embodiment of the present invention. Schematic diagram showing the configuration of blood purification means in the blood purification system Schematic diagram showing concentration measuring means in the blood purification system Schematic diagram showing another embodiment of the concentration measuring means in the blood purification system Flow chart showing control contents of the blood purification system

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The blood purification system according to the present embodiment is for producing a predetermined concentration of dialysate from a dialysate stock solution and supplying the dialysate to a plurality of blood purification means. As shown in FIG. A plurality of blood purification means 1 installed in a dialysis room (treatment room) at a medical site, a dialysate supply device 2 installed in a machine room at the medical site, each blood purification means 1 and a dialysate supply means 2, Are mainly composed of supply channels H, H1 and H2, connecting means B1 and B2, and concentration measuring means (M1 to M3).

  The blood purification means 1 is called a monitoring device. A dialyzer 3 (blood purifier) for performing blood purification treatment (hemodialysis treatment) on a patient is attached, and dialysis supplied from the dialysate supply device 2. The liquid is supplied to the dialyzer 3, and a plurality of liquids are installed along the supply flow paths H1 and H2. The blood purification means 1 is provided with a touch panel that can perform hemodialysis treatment and other control content (cleaning or disinfection) instructions and a predetermined display.

  More specifically, each of the plurality of blood purification means 1 installed in the dialysis chamber is connected to a supply channel H1 extending from the dialysate supply device 2 or a pipe from the supply channel H2, as shown in FIG. L1 is drawn in, and a pipe L2 connected to a drain means (not shown) is provided, and a duplex pump 8 is disposed across the pipes L1 and L2. Among these, the pipe L1 in the blood purification means 1 is provided with an electric conductivity sensor 5 for measuring the electric conductivity of dialysate or the like flowing through the pipe L1, a liquid pressure detecting sensor 6 for detecting the supply pressure of the liquid, and the like. Has been. In the figure, reference numeral 7 denotes a control means, and the control means 7 performs various controls for causing blood purification treatment.

  Further, a dialysate introduction line L4 communicated with the pipe L1 and a dialysate discharge line L5 communicated with the pipe L2 are extended from the duplex pump 8, and the distal end of the dialysate introduction line L4 via the coupler C is extended. Can be connected to the dialysate inlet 3a of the dialyzer 3, and the tip of the dialysate discharge line L5 can be connected to the dialysate outlet 3b of the dialyzer 3 via the coupler C. In this way, each blood purification means 1 is provided with a dialyzer 3 corresponding to the patient, and the dialyzer 3 is connected to a blood circuit 4 for circulating the patient's blood extracorporeally. Become.

  The pump chamber of the dual pump 8 is divided into a liquid feeding side pump chamber connected to the pipe L1 and a discharge side pump chamber connected to the pipe L2 by a single plunger (not shown). By reciprocating, the dialysate or the washing solution sent to the liquid feed side pump chamber is supplied to the dialyzer 3 and the dialysate in the dialyzer 3 is sucked into the discharge side pump chamber. Furthermore, a pipe L3 that connects the pipe L2 and the dialysate discharge line L5 while bypassing the duplex pump 8 is formed in the blood purification means 1, and a water removal pump 9 is disposed in the middle of the pipe L3. Has been. By driving the water removal pump 9, it is possible to perform water removal on the blood of the patient flowing in the dialyzer 3.

  Instead of the dual pump 8, a so-called chamber type may be used, and sensors such as the conductivity sensor 5 and the hydraulic pressure detection sensor 6 may be provided with arbitrary ones or other general purpose sensors. You may add something. Furthermore, in the present embodiment, the sensors are arranged in the pipe L1, but may be arranged in another pipe (for example, the pipe L4). For example, sensors such as the electrical conductivity sensor 5 and the hydraulic pressure detection sensor 6 may be disposed on either or both of the pipe L1 and the pipe L4.

  The dialysate supply means 2 can prepare a dialysate having a predetermined concentration using, for example, clean water obtained by a water treatment device (not shown) and a dialysate stock solution prepared by a dissolution device (not shown) and blood. The dialysate prepared for each of the purification means 1 can be supplied. That is, the dialysate supply means 2 is connected to each of the plurality of blood purification means 1 via supply flow paths H, H1, and H2, and each of the blood purification means 1 is dialyzed via the supply flow path H. It is configured to be able to supply desired liquids such as liquid, washing water and disinfecting liquid. In addition, the undiluted solution for dialysis applied in this embodiment is prepared by dissolving a drug (agent A) that does not contain powdered sodium bicarbonate with clean water, so that the solution A is converted to a drug composed of powdered sodium bicarbonate ( The B stock solution is obtained by dissolving the B agent) with clean water, but the A stock solution and B stock solution provided as liquids may be stored in a tank or the like and used as they are. That is, the dialysate supply means 2 can obtain a dialysate by mixing and diluting the A stock solution, B stock solution and clean water obtained as described above. Each can be supplied.

  Furthermore, the dialysate supply means 2 according to the present embodiment is electrically connected to concentration measuring means (M1 to M3), which will be described in detail later, and based on the measurement values of these concentration measuring means (M1 to M3). If the determination unit 10 determines whether the concentration of the individual components of the dialysate flowing through the supply flow path H is appropriate, and the determination unit 10 determines that the concentration of the individual components of the dialysate exceeds the appropriate range, And a notification means 11 for performing notification by display, notification by sound output, and the like.

  The supply flow paths H, H1, and H2 are pipes for supplying dialysis fluid (including cleaning fluid and disinfecting fluid) from the dialysis fluid supply means 2 to each blood purification means 1. In the present embodiment, the supply flow path H extends from the dialysate supply means 2 and branches at the branch point G into a plurality of (two) supply flow paths H1 and H2. A plurality of blood purification means 1 are disposed in the respective supply flow paths H1, H2, and injection means (B1, B2) are connected to any branched supply flow paths.

  The supply flow path H1 is formed in an endless manner via the circulation heating unit Y, and is configured to supply each blood purification means 1 while circulating the dialysate. The circulation warming unit Y is for circulating the circulating dialysate while heating, and in this embodiment, a discharge pipe Hd for discharging the circulating dialysate to the outside is extended. . Further, between the branch point G in the supply flow path H1 and the circulation heating unit Y, one non-circulation flow path is extended, and the downstream side from the circulation heating unit Y is a circulation flow path. A plurality of blood purification means 1 are provided.

  The supply flow path H2 is composed of a single non-circulating flow path extending from the branch point G, and the drain valve V is connected to the end, and the drain valve V is opened. Then, the water remaining in the supply flow path H2 at the start of the dialysate feeding is pushed out and drained, and the supply flow path H2 is quickly replaced with the dialysate, or at the time of washing and disinfecting after completion of dialysis. The dialysate and disinfectant remaining in H2 are quickly pushed out and discharged. The blood purification means 1 is arranged in each of the branched supply channels or in the circulated supply channels by further branching the supply channel H2 or by using the supply channel H2 as a circulation channel. Also good. Further, three or more supply channels may be branched from the branch point G, and the blood purification means 1 may be arranged in each branched supply channel.

  Here, in the middle of the supply flow path H1 and the supply flow path H2 according to the present embodiment, injection means B1 and B2 capable of injecting a specific component into the dialysate flowing through the supply flow paths H1 and H2 are connected. ing. The injection means B1 is connected to a portion of the supply flow path H1 between the branch point G and the circulation heating unit Y, and the injection means B2 is a predetermined portion of the supply flow path H2 that is upstream and downstream. Are connected to the part where the blood purification means 1 is disposed.

  These injection means B1 and B2 include storage means D1 and D2 for storing a medicine containing a specific component, connection flow paths a and b for connecting the storage means D1 and D2 and the supply flow paths H1 and H2, and a connection flow. Infusion pumps P1 and P2 disposed in the passages a and b for feeding a medicine containing specific components of the storage means D1 and D2 to the supply passages H1 and H2, and dialysate flowing through the supply passages H1 and H2. And mixing chambers m1 and m2 for agitating and mixing the medicine containing a specific component.

The medicines accommodated in the accommodating means D1 and D2 are, for example, sodium chloride (NaCl), potassium chloride (KCl), calcium chloride (CaCl ₂ ), sodium hydrogen carbonate (NaHCO ₃ ), glucose (C ₆ H) as specific components. ₁₂ O ₆ ) and the like, and may include a plurality of components in addition to those including a single component. Further, the specific component injected by the injection means B1 and the specific component injected by the injection means B2 may be the same or different in type and concentration. The injection means B1 and B2 may inject the medicine in the storage means D1 and D2 by their own weight. In that case, it is preferable to connect a shutoff valve instead of the injection pumps P1 and P2.

  Thus, during blood purification treatment, the dialysis fluid is circulated through the supply channels H, H1, and H2, and the infusion pumps P1 and P2 are driven, whereby a medicine containing a specific component in the storage means D1 and D2 is obtained. After being injected into the supply channels H1 and H2, the dialysate and the drug are agitated and mixed in the mixing chambers m1 and m2, and then supplied to the blood purification means 1 further downstream. As a result, if a medicine containing any specific component is accommodated and infused in the accommodation means D1, D2, for example, potassium chloride (KCl) is infused as a specific component in a hypokalemia patient. For patients who need to use dialysis fluid and prevent blood pressure reduction, dialysis fluid infused with sodium chloride (NaCl) as a specific component can be used.

  Further, in the supply flow paths H, H1, and H2 according to the present embodiment, the concentrations (composition concentrations) of the individual components contained in the dialysate flowing through the supply flow paths H, H1, and H2 during the blood purification treatment are changed over time. Concentration measuring means (M1 to M3) that can be measured automatically are connected. The concentration measuring means M1 is connected to the supply flow path H upstream from the branch point G (between the dialysate supply means 2 and the branch point G), and the concentration measuring means M2 is connected to the supply flow path H1. The circulation channel and the concentration measuring unit M3 are respectively connected to positions downstream of the injection unit B2 in the supply channel H2.

  More specifically, as shown in FIG. 3, the concentration measuring unit M1 (same as the concentration measuring units M2 and M3) includes a drawing channel h1 that can draw dialysate flowing through the supply channel H, and the drawing A concentration measuring unit N that can measure the concentration of individual components while accommodating the dialysate drawn in the flow path h1, and an infusion pump Pa that is arranged in the drawing flow path h1 and feeds the dialysate into the concentration measuring unit N. And a discharge channel h2 for discharging the dialysate after the concentration of the individual components is measured by the concentration measuring unit N to the outside.

The concentration of the individual component measured by the concentration measuring unit N is the concentration of the individual component contained in the dialysate, such as sodium (Na), potassium (K), calcium (Ca), carbonic acid (CO ₂ ), etc. Concentration. Further, the concentration measuring means M1 may measure the osmotic pressure, pH, and conductivity of the dialysate in addition to the concentration of individual components contained in the dialysate flowing through the supply flow path H. In addition to the suitability of the concentration of the dialysate flowing through the supply channel H, the suitability of the osmotic pressure, pH, and conductivity can also be determined.

  Further, the concentration measuring means (M1 to M3) may be configured to measure the concentrations of the same individual components, or may measure the concentrations of different individual components. Furthermore, in the present embodiment, an infusion pump Pa is provided in the drawing flow path h1 to send the dialysate to the concentration measuring unit N. Instead of the infusion pump Pa, FIG. As shown in FIG. 4, a shutoff valve Va may be provided. Further, in the present embodiment, the discharge flow path h2 for discharging the dialysate after the concentration of the individual component is measured by the concentration measuring unit N is extended, but instead of the discharge flow path h2, the discharge flow path h2 is extended. The dialysate after the concentration of the individual component is measured by the concentration measuring unit N may be a flow path that returns the supply flow path H again.

  Thus, during blood purification treatment (during dialysis treatment), when the infusion pump Pa is driven (the shut-off valve Va may be opened), a part of the dialysate flowing through the supply flow path H is drawn into the suction flow path h1. The concentration reaches the concentration measurement unit N, and the concentration of the individual components is measured while being stored in the state where the flow is stopped at the concentration measurement unit N, and the dialysate after the measurement flows through the discharge channel h2 and is discharged Will be. By repeating this operation continuously or intermittently during the blood purification treatment, the concentration of the individual components contained in the dialysate flowing through the supply channel H can be measured over time. Information on the concentration of the individual component measured here is transmitted to the determination unit 10 of the dialysate supply unit 2, and it is determined whether or not the concentration of the individual component is appropriate. Note that the determination means 10 is not necessarily provided in the dialysate supply means 2, and may be provided, for example, in each of the concentration measurement means (M1 to M3) or independently. Also good.

  Furthermore, in the present embodiment, a cleaning liquid or a disinfecting liquid can be supplied from the dialysate supply means 2 to each blood purification means 1 before or after the blood purification treatment, and the concentration measuring means (M1 to M3). Is preferably configured to measure the concentration of individual components (for example, chlorine (Cl), etc.) contained in the cleaning liquid or the disinfecting liquid. In this case, whether or not the concentration of the cleaning solution or the disinfecting solution supplied from the dialysate supplying unit 2 to the blood purification unit 1 during cleaning or disinfection can be determined with high accuracy.

  Further, the concentration measuring means M1 and M2 and the concentration measuring means M1 and M3 according to the present embodiment are connected to the upstream and downstream sides of the injection means B1 and B2 in the supply flow paths H, H1 and H2, respectively. The concentrations of the individual components measured by the means (M1 to M3) can be compared. As a result, it is possible to accurately determine whether or not a specific component has been properly injected by the injection means B1 and B2.

Next, an example of control contents in the blood purification system according to the present embodiment will be described based on the flowchart of FIG.
When the blood purification treatment (dialysis treatment) is started, the dialysis fluid is circulated from the dialysate supply means 2 through the supply flow path H and supplied to each blood purification means 1 while supplying specific components by the injection means B1 and B2. The contained medicine is injected (S1), and the concentrations of the individual components of the dialysate flowing through the supply channels H, H1, and H2 are measured by the concentration measuring means (M1 to M3) (S2). Thereafter, the measured values of the concentration measuring means (M1 to M3) are transmitted to the determining means 10, and it is determined whether or not the concentration of the individual components of the dialysate is appropriate (S3).

  When it is determined in S3 that the concentration of the individual components of the dialysate is appropriate (within an appropriate range), the dialysate supply means 2 continues to supply the dialysate (S4) and dialysis is performed in S3. If it is determined that the concentration of the individual components of the liquid is not appropriate (outside the proper range), each of the dialysate stock solution injection pumps or injection pumps P1 and P2 provided in the dialysate supply means 2 in S5, or All are controlled to drive the concentration of the individual components of the dialysate in the supply flow paths H, H1, and H2 to be appropriate, and the process returns to S2 and the subsequent control is performed again. In addition, in order to find out the failure of the concentration measuring means (M1 to M3), the measured values of the concentration measuring means (M1 to M3) are compared in a state where the medicine is not injected by the injecting means B1 and B2. Alternatively, a plurality of systems of sensors (not shown) may be provided in each concentration measuring means (M1 to M3) to compare the two.

  According to the above embodiment, the injection means B1 and B2 that can inject a specific component into the dialysate flowing through the supply flow paths H1 and H2 are connected in the middle of the supply flow paths H1 and H2. The dialysis fluid into which no components are injected and the dialysis fluid into which specific components are injected can be circulated in the supply flow paths H1 and H2, respectively. Dialysate can be supplied.

  Further, the supply flow path H is branched into a plurality of parts, and the blood purification means 1 is disposed in each of the branched supply flow paths H1 and H2, and the injection means B1 is provided in any branched supply flow paths H1 and H2. Since B2 is connected, the dialysis fluid into which a specific component is injected is circulated through the supply flow paths H, H1, and H2 to which the injection means B1 and B2 are connected, and the supply flow path to which the injection means B1 and B2 are not connected A dialysate in which a specific component is not injected can be circulated through H, H1, and H2.

  Further, since the injection means B2 is connected to a predetermined portion of the supply flow path H2 where the blood purification means 1 is disposed on the upstream side and the downstream side, respectively, the injection means B2 is connected to the downstream side of the portion where the injection means B2 is connected. Can circulate a dialysis fluid into which a specific component has been injected, and circulate a dialysis fluid into which a specific component is not injected upstream from the site where the injection means B2 is connected.

  Furthermore, since blood concentration treatment means (M1 to M3) capable of measuring the concentration of individual components contained in the dialysate flowing through the supply channels H, H1, and H2 over time during blood purification treatment, blood is provided. During the purification treatment, the concentration of the dialysate supplied from the dialysate supply means 2 to the blood purification means 1 can be accurately and automatically measured, and the suitability of the dialysate concentration can be determined more accurately.

  In addition, the injection means B1 and B2 according to the present embodiment include accommodation means D1 and D2 that contain a medicine containing a specific component, and connection flow paths that connect the accommodation means D1 and D2 and the supply flow paths H1 and H2. a, b, and infusion pumps P1, P2 that are disposed in the connection channels a, b and feed the medicines containing specific components of the storage means D1, D2 into the supply channels H1, H2. A specific component can be more reliably and smoothly injected into the dialysate flowing through the supply flow paths H1 and H2.

  Although the blood purification system according to the present embodiment has been described above, the present invention is not limited to this. For example, the concentration measuring means is a supply flow path in the blood purification means 1 (pipe L1 or dialysate in FIG. 2). May be connected to the introduction line L4, etc., and a specific component different from the above may be injected by the injection means B1 and B2, or a concentration of an individual component different from the above may be changed over time during the blood purification treatment. It is good also as what can be measured. Further, the arrangement positions and the number of arrangement of the injection means B1 and B2 and the concentration measurement means (M1 to M3) may take other forms. Further, the pipes H, H1, and H2 are not necessarily in this combination, and either one of the pipe H1 or the pipe H2 or another combination may be provided. In addition, in this embodiment, although it is set as the system which performs a hemodialysis treatment, you may make it apply to the blood purification system which performs another blood purification treatment.

  If the blood purification system is connected to an injection means capable of injecting a specific component into the dialysate flowing through the supply flow channel in the middle of the supply flow channel, the blood purification system may be applied to a device to which other functions are added. Can do.

DESCRIPTION OF SYMBOLS 1 Blood purification means 2 Dialysate supply apparatus 3 Dialyzer (blood purifier)
4 Blood circuit 5 Conductivity sensor 6 Fluid pressure sensor 7 Control means 10 Determination means 11 Notification means B1, B2 Injection means H Supply flow path M1-M3 Concentration measurement means

Claims (6)

A plurality of blood purification means to which a blood purifier for performing blood purification treatment on a patient is attached;
Dialysate supply means capable of supplying dialysate to each of the blood purification means;
A supply channel for circulating and supplying the dialysate from the dialysate supply means to each blood purification means;
In the blood purification system comprising
In the middle of the supply channel, an injection means for injecting a specific component into the dialysate flowing through the supply channel is connected.   The supply flow path is branched into a plurality of parts, and the blood purification means is disposed in each of the branched supply flow paths, and the injection means is connected to any branched supply flow path. The blood purification system according to claim 1.   The blood according to claim 1 or 2, wherein the injection means is connected to a predetermined portion of the supply flow path where the blood purification means is disposed on the upstream side and the downstream side, respectively. Purification system.   4. The apparatus according to claim 1, further comprising a concentration measuring unit capable of measuring the concentration of the individual components contained in the dialysate flowing through the supply flow channel over time during blood purification treatment. The blood purification system as described in.   The concentration measuring means is connected to the upstream side and the downstream side of the injection means in the supply channel, respectively, and the concentrations of the individual components measured by the respective concentration measuring means can be compared. 4. The blood purification system according to 4.   The injection means includes a storage means for storing a medicine containing the specific component, a connection flow path for connecting the storage means and the supply flow path, and a connection flow path disposed in the connection flow path for specifying the storage means. The blood purification system according to any one of claims 1 to 5, further comprising an infusion pump for feeding a medicine containing any of the components into the supply channel.

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