Cerebrospinal fluid isovolumetric replacement control device

Abstract

The present invention relates to the field of medical technology, and specifically refers to a cerebrospinal fluid equal replacement control device, comprising a flow monitoring system: a flow sensor, a flow controller and a central control system; flow sensors and flow controllers are correspondingly arranged on an injection tube and a drainage tube; the flow sensor on the injection tube sends the monitoring structure liquid inflow velocity to the central control system, and after processing by the central control system, an instruction is issued to the flow controller on the injection tube to adjust the flow; the flow sensor on the drainage tube sends the monitoring structure liquid outflow velocity to the central control system, and after comparing the inflow velocity with the outflow velocity, an instruction is issued to the flow controller on the drainage tube to adjust the flow after processing by the control system, so as to achieve the purpose of equal replacement of inflow and outflow.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and in particular to a cerebrospinal fluid equal volume replacement control device, which is widely applicable to places such as neurology and surgery where drainage and replacement of patient's cerebrospinal fluid is required. Background Art

[0002] The collection and drainage of cerebrospinal fluid through ventricular or lumbar puncture is a common treatment method in neurology, surgery and other departments. From the perspective of medical diagnosis, it can collect cerebrospinal fluid samples from patients for various laboratory tests, providing a basis for doctors to diagnose the patient's condition; from the perspective of treatment, it can quickly discharge bloody or inflammatory cerebrospinal fluid caused by cerebral hemorrhage, ventricular hemorrhage, subarachnoid hemorrhage and cerebrospinal inflammation, reducing pathological stimulation to the brain and spinal cord. The method is effective.

[0003] However, there are problems with the cerebrospinal fluid drainage devices currently used clinically:

[0004] 1. Inaccurate measurement. The amount of cerebrospinal fluid drainage needs to be precisely calculated, which has high requirements for sterility. Traditional drainage devices cannot accurately measure.

[0005] 2. It is difficult to control the flow rate. Traditional drainage devices can only control the drainage by raising the height of the drainage tube and the drainage bag. The drainage speed cannot be understood in real time. Excessive drainage may lead to bleeding, intracranial hypotension syndrome, or even brain herniation, which endangers the patient's life. Traditional drainage tube care is difficult.

[0006] 3. With only passive drainage, the traditional drainage device can only rely on the patient himself to produce the daily pathological cerebrospinal fluid drainage volume. The daily drainage volume is small and the drainage speed is slow, which prolongs the patient's treatment time. The patient wears the tube for a long time, increasing the risk of infection.

[0007] 4. Long-term catheter drainage of pathological cerebrospinal fluid may contain bloody or inflammatory secretions that block the drainage tube, resulting in the use of the drainage tube, which needs to be replaced repeatedly, increasing the patient's medical expenses and pain. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a cerebrospinal fluid equal volume replacement control device.

[0009] A cerebrospinal fluid equal volume replacement control device, comprising a flow monitoring system: a flow sensor, a flow controller and a central control system;

[0010] A flow sensor and a corresponding flow controller are arranged on the injection pipe;

[0011] A flow sensor and a corresponding flow controller are arranged on the drainage tube;

[0012] The flow sensor on the injection tube monitors the inflow flow rate of the structural liquid and sends it to the central control system. After processing by the central control system, an instruction is issued to the flow controller on the injection tube to adjust the flow rate. The flow sensor on the drainage tube monitors the outflow flow rate of the structural liquid and sends it to the central control system. After comparing the inflow flow rate with the outflow flow rate, the control system processes and issues an instruction to the flow controller on the drainage tube to adjust the flow rate, so as to achieve the purpose of equal replacement of inflow and outflow.

[0013] Furthermore, the flow sensor has an information collection and transmission system.

[0014] Furthermore, the flow controller may be a peristaltic pump with a motor, a gear drainage meter or an ultrasonic flow meter, and may be provided with an information receiving and processing system.

[0015] Furthermore, the central control system includes a control chip and an information receiver and transmitter, and the control chip is an MCU chip.

[0016] Furthermore, the control system is connected to an alarm device, and the alarm device is a light and sound alarm.

[0017] Advantages of the present invention: The advantages of the device of the present invention are (1) accurate metering and speed control can be achieved through flow rate sensors and controllers, reducing the occurrence of complications; (2) active replacement of pathological cerebrospinal fluid can be achieved through injection tubes and drainage tubes, shortening the treatment time; (3) the incidence of tube blockage can be reduced through active replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the cerebrospinal fluid equal volume replacement control device of the present invention;

[0019] Figure 2 It is a schematic diagram of the principle of the control system of the cerebrospinal fluid equal volume replacement control device of the present invention.

[0020] As shown in the figure: 1. Replacement fluid storage device; 2. Cerebrospinal fluid storage device; 3. Injection tube; 4. Drainage tube; 5. Flow sensor; 6. Flow controller; 7. Central controller. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0024] In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] A cerebrospinal fluid equal volume replacement device, comprising a replacement fluid storage device 1 and a cerebrospinal fluid storage device 2;

[0027] The replacement fluid storage device 1 is connected to the distal end of the human cerebrospinal fluid storage cavity through an injection tube 3, and the cerebrospinal fluid storage device 2 is connected to the proximal end of the human cerebrospinal fluid storage cavity through a drainage tube 4. The injection tube 3 and the drainage tube 4 are both provided with a flow monitoring device;

[0028] The flow monitoring device includes a flow sensor 5, a flow controller 6 and a central control system;

[0029] A flow sensor 5 and a corresponding flow controller 6 are arranged on the injection pipe 3;

[0030] A flow sensor 5 and a corresponding flow controller 6 are arranged on the drainage tube 4;

[0031] The flow sensor 5 on the injection tube 3 monitors the inflow flow rate of the structural liquid and sends it to the central control system. After processing by the central control system, an instruction is issued to the flow controller 6 on the injection tube 3 to adjust the flow rate. The flow sensor 5 on the drainage tube 4 monitors the outflow flow rate of the structural liquid and sends it to the central control system. After comparing the inflow flow rate with the outflow flow rate, the control system processes and issues an instruction to the flow controller 6 on the drainage tube 4 to adjust the flow rate, so as to achieve the purpose of equal replacement of inflow and outflow.

[0032] The flow sensor 5 on the injection pipe 3 has an information collection and transmission system.

[0033] The flow controller 6 can preferably be a peristaltic pump with a motor, a gear drainage meter or an ultrasonic flow meter, and must have an information receiving and processing system inside.

[0034] Preferably, the control system includes a central controller 7, which includes a control chip and an information receiver and transmitter, and the control chip is an MCU chip.

[0035] Preferably, the control system is connected to an alarm device, and the alarm device is a light and sound alarm for easy reminder.

[0036] When the device of the present invention is used, it comprises the following steps:

[0037] S1. inserting the outlet end of the injection tube into the distal end of the human cerebrospinal fluid storage cavity, and inserting the inlet end of the drainage tube into the proximal end of the human cerebrospinal fluid storage cavity;

[0038] S2, setting the flow threshold of the replacement fluid injection, the flow threshold of the cerebrospinal fluid drainage and the speed threshold of the two peristaltic pumps and the flow controller, starting the flow sensor of the injection tube to monitor the replacement fluid injection flow in real time, and starting the flow sensor of the drainage tube to monitor the flow of the cerebrospinal fluid drainage in real time;

[0039] S3. When the inflow or outflow exceeds the threshold or the pipeline is blocked, the alarm device lights flash and sounds an alarm;

[0040] The central control system controls the flow controller on the injection tube and the flow controller on the drainage tube according to the flow data detected by the flow sensor, adjusts the flow of the replacement fluid in the injection tube and the flow of the cerebrospinal fluid drawn out of the drainage tube to achieve a balanced state.

[0041] The contents not described in detail in this specification belong to the prior art known to those skilled in the art, such as the flow sensor, flow controller, i.e. peristaltic pump, pressure sensor, liquid level monitor, etc. in this case, as long as the control meets the requirements of this case.

[0042] By those skilled in the art, all electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working. The detailed connection means are well-known technologies in the field and will not be explained in the electrical control.

[0043] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A cerebrospinal fluid equal volume replacement control device, characterized in that: It includes a flow monitoring system: a flow sensor (5), a flow controller (6) and a central control system; A flow sensor (5) and a corresponding flow controller (6) are arranged on the injection pipe (3); A flow sensor (5) and a corresponding flow controller (6) are arranged on the drainage tube (4); The flow sensor (5) on the injection tube (3) sends the monitoring structure liquid inflow velocity to the central control system, and after being processed by the central control system, an instruction is issued to the flow controller (6) on the injection tube (3) to adjust the flow rate. The flow sensor (5) on the drainage tube (4) sends the monitoring structure liquid outflow velocity to the central control system, and after comparing the inflow velocity and the outflow velocity, after being processed by the control system, an instruction is issued to the flow controller (6) on the drainage tube (4) to adjust the flow rate, so as to achieve the purpose of equal replacement of inflow and outflow.

2. The cerebrospinal fluid equal volume replacement control device according to claim 1, characterized in that: The flow sensor (5) has an information collection and transmission system.

3. The cerebrospinal fluid equal volume replacement control device according to claim 1, characterized in that: The flow controller (6) can be a peristaltic pump with a motor, a gear drainage meter or an ultrasonic flow meter, and is provided with an information receiving and processing system.

4. The cerebrospinal fluid equal volume replacement control device according to claim 1, characterized in that: The central control system includes a control chip and an information receiver and transmitter, and the control chip is an MCU chip.

5. The cerebrospinal fluid equal volume replacement control device according to claim 4, characterized in that: The central control system is connected with an alarm device, and the alarm device is an alarm with light and sound.

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