JPH05176992A - Blood purifying device - Google Patents

Abstract

PURPOSE:To obtain the blood purifying device which is small and light and has excellent operability by respectively disposing operating sections and display sections atop the device body, various kinds of feed and discharge means likewise on the front surface and various kinds of monitor means, opening/closing means and transfer means, etc., likewise on the flanks. CONSTITUTION:Blood is transferred by a blood pump 6 to a blood purifying device 7 at the time of purifying the blood of a human body. An anti-blood clotting agent is injected by a drug injecting pump into the blood at this time. The dialyzate in a dialyzate container 12 is supplied by a dialyzate pump 10 into the blood purifying device 7. Further, the dialyzate taking the waste materials in the blood therein is discharged to the outside of the system by a discharge pump 8. On the other hand, the replenishing liquid in a replenishing liquid container 13 is supplied by a replenishing liquid pump 9 into the blood to be returned to the human body after purification. The operating sections and display sections 1 to 5 for various kinds of pumps are respectively disposed atop the device body and various kinds of the pressure monitor mechanisms 15a to 15c, the bubble monitor mechanisms 14 and opening/closing mechanism 16 are respectively disposed on the flanks of the device body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention introduces blood removed from an artery or vein into a blood purifier, filters and separates water, metabolites, electrolytes, etc., supplies useful substances, and activates a self-defense mechanism. The present invention relates to a blood purification device that assists or substitutes organ functions of a living body by holding the blood.

[0002]

2. Description of the Related Art Conventionally, as a blood purification method, whole blood exchange, plasma exchange, blood adsorption, hemodialysis, hemofiltration, peritoneal dialysis and the like have been widely applied clinically. Conventionally, these blood purification methods are often applied independently, and there is no restriction on the size and operability of the device used. Therefore, in the conventional device, the operation unit, the display unit, the mechanism unit, and the like are all arranged in front of the device, which is relatively large and is not excellent in operability.

Furthermore, in recent years, at the same time or within a short period of time,
There is an increasing number of pathological conditions called so-called multiple organ failure, in which important organs or systems such as the central nervous system, heart, lung, liver, kidney, digestive system, coagulation system, and immune system fall into dysfunction. When you have multiple organ failure, lifesaving is very difficult. In such cases, the application of the above therapy may be difficult, and continuous hemofiltration dialysis therapy has been proposed. This therapy is usually I
It is treated in CU, CCU, etc.

[0004]

Since many patients who enter the ICU, CCU, etc. have complications as described above, treatment for these patients cannot be performed by a single means, and the patient's bed cannot be treated. Since many treatment instruments will be installed on the side, the treatment instruments used in ICU, CCU, etc. will have excellent performance as well as be as compact as possible and easy to handle. Is required.

However, conventionally, in the treatment with ICU, CCU, etc., a blood pump, a filtrate pump, a drug infusion pump, etc. are used alone, or they are integrated as a blood purification device. However, due to the large size and inconvenient handling of these devices, most of the bedside space will be occupied by these devices, making it difficult for doctors and others to provide treatment quickly and effectively. ing. In addition, conventional hemofiltration and dialysis machines have many complicated structures such as a structure in which a dialysate pump and its piping are built in the machine, and there is a problem in operability such as sterilization and cleaning of the machine. There is. It is an object of the present invention to provide a blood purification apparatus that is small and lightweight and has excellent operability for improving the above situation.

[0006]

The blood purification apparatus of the present invention is a small-sized and easy-to-use apparatus for performing continuous hemodiafiltration therapy. That is, the present invention is a means for discharging waste products separated by a blood treatment device, a means for supplying a dialysate and / or a replacement fluid into the system, a means for injecting a trace amount of chemicals into the system, a means for transferring blood, In a blood purification apparatus equipped with a means for monitoring the pressure in the system, a means for monitoring the presence or absence of air bubbles in the system, and a means for opening and closing a flow path, a blood processing device in which an operation part and a display part are on the upper surface of the device. The means for discharging the waste products separated by the means, the means for supplying the dialysate and / or the replacement fluid into the system, and the means for injecting the trace amount of chemicals into the system are the means for transferring blood to the front of the device, the pressure in the system. The present invention relates to a blood purification apparatus, characterized in that means for monitoring the presence of air bubbles in the system, and means for opening and closing the flow path are arranged on the side surface of the apparatus.

In the blood purification apparatus of the present invention, the operating section and the display section are provided on the upper surface of the apparatus, and the means for discharging the waste products separated by the blood processor and / or the means for supplying the replacement fluid into the system are provided in the apparatus. On the front side, the means for transferring blood, the means for monitoring the pressure inside the system, the means for monitoring the presence or absence of bubbles in the system, etc. are provided on the side of the device, and the operation section, display section, and mechanism section are specified respectively. It is concentrated in the area of. Particularly, in the blood purification apparatus of the present invention, three roller pumps and one syringe pump are arranged in front of the apparatus, and the blood pump and the mechanism section are arranged together on the side surface of the apparatus. It is the most suitable device for continuous hemofiltration and dialysis therapy in ICU, CCU, etc., which has been improved and has greatly improved operability and requires complicated treatment in a narrow space.

By arranging an operating unit for controlling blood flow rate, selecting pressure monitoring items and the like and a display unit for displaying these states on the upper surface of the device, the operability and operating condition of the device in a narrow space By arranging the waste discharge means, dialysate and / or replacement fluid supply means, and trace chemical injection means in front of the device, the status of moving parts of the device can be confirmed at a glance. it can. Further, by disposing the pressure or bubble monitoring means and the flow path opening / closing means on the side surface of the apparatus, these disposable circuits can be easily attached and detached even in a narrow place.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The blood purification apparatus of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a top view of an embodiment of the blood purification apparatus of the present invention, in which an operation unit and a display unit for displaying the pressure in the flow channel or the alarm status are arranged. FIG. 2 is a front view thereof, in which a waste material discharge means, a roller type pump as a dialysate and / or replacement fluid supply means and a syringe type pump as a trace amount chemical injection means are arranged. FIG. 3 is a side view of the same, in which a roller type pump that is a blood transfer means, a pressure or bubble monitoring means, and a channel opening / closing means are arranged.

The outline of the treatment using the blood purification apparatus of the present invention will be described below. The blood removed from the vein or artery is transferred to the blood purifier 7 by the blood pump 6. An anticoagulant is injected into this blood by the drug injection pump 11. On the other hand, the dialysate in the dialysate container 12 is supplied to the blood purifier by the dialysate pump 10. The dialysate containing the waste products in the blood is discharged from the system by the discharge pump 8.

As the blood purifier, a hollow fiber membrane module using a hollow fiber membrane as a dialysis / filtration material is suitable. The hollow fiber membrane used in the hollow fiber membrane module is preferably a dialysis or ultrafiltration membrane. The dialysis or ultrafiltration membrane may be any membrane that has little or no leakage of plasma proteins and can remove water. The material forming the hollow fiber membrane is not particularly limited, and examples thereof include cellulose-based, polysulfone-based, polyamide-based, polyacrylonitrile-based, poly (ethylene-vinyl alcohol) -based, polymethylmethacrylate-based, and polycarbonate-based materials.

Any anticoagulant may be used as long as it can be used for extracorporeal circulation. For example, citric acid (A
CD, CPD, etc.), heparin, prostaglandins, gabexate mesylate, etc. are used. These are administered from a puncture part or a branch part provided in the blood line on the downstream side thereof. The waste product or plasma containing disease factors separated by the blood purifier is discharged from the system by the discharge pump 8. The purified blood is returned to the human body again. At this time, the replacement fluid in the replacement fluid container 13 is supplied to the returned blood by the replacement fluid pump 9 while maintaining equilibrium with the removed and discharged water.

The above-described blood transportation is operated manually by the blood pump operating unit 1, the drainage pump operating unit 3, and the drug injection pump operating unit 5 or by automatic control by a computer. When the respective flow rates are not proper, the control is performed by manually or automatically correcting the operation parts.

On one side of the apparatus, there are a blood pump 6 for removing blood, a pressure monitoring mechanism (15a, 15b, 15c) such as a pressure sensor for measuring blood pressure, filtration pressure, etc., infrared rays, laser beams, etc. A bubble monitoring mechanism 14 such as an optical sensor or an ultrasonic sensor, and a channel opening / closing mechanism (1) such as a clamp for closing the circuit when some abnormality occurs.
6) are attached together.

[0015]

According to the blood purification apparatus of the present invention, a portion for operating or displaying, such as controlling the flow rate of blood, monitoring pressure, monitoring the presence or absence of bubbles, is provided on the upper surface of the apparatus, a roller pump other than the blood pump, a syringe. A pump or the like is arranged in front of the device, and a pressure or bubble monitoring mechanism, a flow path opening / closing mechanism, etc. are arranged together on one side of the device. Therefore, the operability of the entire device is excellent, it is easy to check the operating status of the pump,
Further, even in a narrow treatment site such as ICU or CCU, a troublesome operation such as attachment / detachment of a blood circuit can be easily performed.

[0016]

[Brief description of drawings]

FIG. 1 is a top view of an embodiment of a blood purification device of the present invention, in which an operation unit and a display unit are arranged.

FIG. 2 is a front view of FIG. 1, in which a waste material discharge means, a dialysis supply means, and a roller type pump serving as a replacement fluid supply means and a syringe type pump serving as a trace amount chemical injection means are arranged.

FIG. 3 is a side view of FIG. 1, in which a blood pump, a pressure or bubble monitoring means, and a flow path opening / closing means are arranged.

[Explanation of symbols]

 1 Blood Pump Operation and Flow Rate Display Section 2 Dialysate Pump Operation and Flow Rate Display Section 3 Discharge Pump Operation and Flow Rate Display Section 4 Replacement Fluid Pump Operation and Flow Rate Display Section 5 Drug Infusion Pump Operation and Flow Rate Display Section 6 Blood Pump 7 Blood Purifier 8 Discharge pump 9 Replacement fluid pump 10 Dialysate pump 11 Drug injection pump 12 Dialysate container 13 Replacement fluid container 14 Bubble sensor 15a, 15b, 15c Pressure sensor 16 Flow path opening / closing means

Claims (1)

[Claims] 1. A means for discharging waste products separated by a blood treatment device, a means for supplying a dialysate and / or a replacement fluid into the system, a means for injecting a trace amount of chemicals into the system, a means for transferring blood, and a system. Equipped with a means for monitoring the internal pressure, a means for monitoring the presence or absence of bubbles in the system, and a means for opening and closing the flow path, and the operating section and the display section discharge the waste products separated by the blood processor onto the upper surface of the device. Means for supplying dialysate and / or replacement fluid into the system and means for injecting a trace amount of chemicals into the system, in front of the device, means for transferring blood, means for monitoring the pressure in the system, A blood purification apparatus, characterized in that means for monitoring the presence or absence of bubbles and means for opening and closing the flow path are arranged on the side surface of the apparatus.