Background
The cerebrospinal fluid collection and drainage by the ventricular or lumbar puncture method is a common treatment means in departments such as neurology and surgery. From the aspect of medical diagnosis, the device can collect cerebrospinal fluid samples of patients for various laboratory examinations, provides a basis for doctors to confirm the condition of the patients, and can rapidly discharge the hemorrhagic or inflammatory cerebrospinal fluid caused by cerebral hemorrhage, ventricular hemorrhage, subarachnoid hemorrhage, encephalomyelitis and the like out of the body, so that pathological stimulation to brain and spinal cord is reduced, and the method is effective.
However, the cerebrospinal fluid drainage device used clinically at present has the problems:
1. The measurement is inaccurate, the cerebrospinal fluid drainage quantity is required to be precisely calculated, the requirement on sterility is high, and the traditional drainage device cannot be precisely measured;
2. The flow rate control is difficult, traditional drainage device can only control drainage through raising the height of drainage tube and drainage bag, can not know drainage speed in real time, if excessive drainage probably leads to bleeding, low craniocerebral pressure syndrome even brain hernia to endanger patient's life, and traditional drainage tube nursing work degree of difficulty is big.
3. Only passive drainage, the pathological cerebrospinal fluid drainage rate of the traditional drainage device can only be generated by the patient per se, the drainage rate is small every day, the drainage speed is low, the treatment time of the patient is prolonged, the tube wearing time of the patient is long, and the infection risk is increased.
4. The long-term catheterization and drainage pathological cerebrospinal fluid can cause the blockage of the drainage tube by bloody or inflammatory secretion, so that the drainage tube is wasted and needs to be replaced repeatedly, thereby increasing the medical cost and pain of patients.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provide a cerebrospinal fluid equivalent displacement regulating and controlling device.
The cerebrospinal fluid equivalent replacement control device comprises a flow monitoring system, a flow sensor, a flow controller and a central control system;
A flow sensor and a corresponding flow controller are arranged on the injection pipe;
a flow sensor and a corresponding flow controller are arranged on the drainage tube;
The flow sensor on the injection pipe sends the inflow velocity of the monitoring structural liquid to the central control system, the flow control system processes the flow control device on the injection pipe to send an instruction to adjust the flow, the flow sensor on the drainage pipe sends the outflow velocity of the monitoring structural liquid to the central control system, and the flow control device on the drainage pipe sends an instruction to adjust the flow after the inflow velocity and the outflow velocity are compared, so as to achieve the purpose of equivalent replacement of inflow and outflow.
Further, the flow sensor is provided with an information acquisition and transmission system.
Further, the flow controller can adopt a peristaltic pump with a motor, a gear drainage meter or an ultrasonic flowmeter and is provided with an information receiving and processing system.
Further, the central control system comprises a control chip and an information receiving and transmitting device, wherein the control chip is an MCU chip.
Further, the control system is connected with an alarm device, and the alarm device adopts an alarm with lamplight and sound.
The device has the advantages that (1) the device can accurately measure and control the speed through the flow rate sensor and the controller, reduce the occurrence of complications, (2) the purpose of actively replacing pathological cerebrospinal fluid can be achieved through the injection tube and the drainage tube, the treatment time is shortened, and (3) the occurrence rate of the blocked tube is reduced through active replacement.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected" or "mounted" on another feature, it can be directly disposed, fixed or connected to the other feature or be indirectly disposed, fixed or connected or mounted on the other feature.
In the description of the embodiments of the present invention, if "several" is referred to, it means more than one, if "multiple" is referred to, it is understood that the number is not included if "greater than", "less than", "exceeding", and it is understood that the number is included if "above", "below", "within" is referred to. If reference is made to "first", "second" it is to be understood as being used for distinguishing technical features and not as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
The present invention will be described in further detail with reference to the accompanying drawings.
The cerebrospinal fluid equivalent replacement device comprises a replacement fluid storage device 1 and a cerebrospinal fluid storage device 2;
The device comprises a replacement liquid storage device 1, a cerebrospinal fluid storage device 2, a drainage tube 4, a flow monitoring device and a control device, wherein the replacement liquid storage device 1 is connected to the distal end of a human cerebrospinal fluid storage cavity through the injection tube 3;
The flow monitoring device comprises 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 pipe 3 sends the inflow velocity of the monitoring structural liquid to the central control system, the central control system processes the flow velocity of the structural liquid to the flow controller 6 on the injection pipe 3 to adjust the flow velocity, the flow sensor 5 on the drainage pipe 4 sends the outflow velocity of the structural liquid to the central control system, and after the inflow velocity and the outflow velocity are compared, the control system processes the flow velocity of the structural liquid to the flow controller 6 on the drainage pipe 4 to adjust the flow velocity, so that the purpose of equivalent replacement of inflow and outflow is achieved.
The flow sensor 5 on the injection tube 3 is provided with an information acquisition and transmission system.
The flow controller 6 can preferably be a peristaltic pump with a motor, a gear drainage meter or an ultrasonic flowmeter, and is internally provided with an information receiving and processing system.
Preferably, the control system comprises a central controller 7, wherein the central controller 7 comprises a control chip and an information receiving and transmitting device, and the control chip is an MCU chip.
Preferably, the control system is connected with an alarm device, and the alarm device adopts an alarm with lamplight and sound, so that reminding is facilitated.
When the device is used, the method comprises the following steps:
S1, placing an outlet end of an injection tube at the far end of a human cerebrospinal fluid storage cavity, and placing an inlet end of a drainage tube at the near end of the human cerebrospinal fluid storage cavity;
S2, setting a flow threshold of the replacement liquid injection, a flow threshold of the drained cerebrospinal liquid and rotation speed thresholds of two peristaltic pumps and a flow controller, starting a flow sensor of an injection pipe to monitor the injection flow of the replacement liquid in real time, and starting a flow sensor of a drainage pipe to monitor the flow of the drained cerebrospinal liquid in real time;
S3, when the inflow or outflow exceeds a threshold value or the pipeline is blocked, the light of the alarm device flashes to give out alarm sound;
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, and adjusts the flow of the replacement liquid in the injection tube and the flow of the cerebrospinal fluid led out from the drainage tube to reach an equilibrium state.
The details not described in the present specification are all known in the prior art, such as flow sensors, flow controllers, i.e. peristaltic pumps, pressure sensors, liquid level monitors, etc. in this case, as long as the control meets the requirements of the present case.
All electric parts in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by the following working sequences among the electric parts by referring to the following working principles, wherein the detailed connection means are known in the art and are not used for explaining electric control.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.