CN112043946A - Cerebrospinal fluid drainage speed monitoring device based on capacitive sensor and operation method thereof - Google Patents
Cerebrospinal fluid drainage speed monitoring device based on capacitive sensor and operation method thereof Download PDFInfo
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- CN112043946A CN112043946A CN202011078015.1A CN202011078015A CN112043946A CN 112043946 A CN112043946 A CN 112043946A CN 202011078015 A CN202011078015 A CN 202011078015A CN 112043946 A CN112043946 A CN 112043946A
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- liquid storage
- capacitive sensor
- capacitance
- cerebrospinal fluid
- signal processor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Ophthalmology & Optometry (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a cerebrospinal fluid drainage speed monitoring device based on a capacitive sensor and an operation method thereof. Meanwhile, the drainage liquid can be automatically discharged by adopting the control of the electromagnetic valve, so that the waste of manpower is avoided, and the design concept of automation is met.
Description
Technical Field
The invention relates to the technical field of cerebrospinal fluid drainage speed detection, in particular to a cerebrospinal fluid drainage speed monitoring device based on a capacitive sensor and an operation method thereof.
Background
At present, clinical detection and control of cerebrospinal fluid drainage speed can only depend on nursing strict observation basically, medical staff judge whether drainage speed is suitable or not by observing drainage volume of a patient every 1 hour or 30 minutes, and the change of the body position of the patient or the instantaneous fluctuation of intracranial pressure can cause the instantaneous change of the drainage speed, so that the medical staff cannot monitor the change of the flow speed in real time. The expected treatment effect is difficult to achieve by too fast and too slow drainage in the drainage process, and even the nursing safety is influenced.
Disclosure of Invention
The invention aims to provide a drainage speed monitoring device capable of detecting the drainage speed of cerebrospinal fluid in real time and an operation method thereof.
In order to achieve the purpose, the invention provides a cerebrospinal fluid drainage speed monitoring device based on a capacitive sensor, which comprises a liquid storage tube, the capacitive sensor, an electromagnetic valve, a liquid storage bag and a control circuit, wherein the liquid storage tube is connected with the capacitive sensor;
the capacitance sensor is arranged on the outer wall of the liquid storage pipe and is used for sensing the change of the internal flow of the liquid storage pipe; the liquid storage pipe is communicated with the liquid storage bag through a pipeline, and the electromagnetic valve is preset on the pipeline; the electromagnetic valve and the capacitance sensor are both electrically connected with the control circuit.
Furthermore, the capacitance sensor is composed of two coplanar electrode plates, and the two electrode plates are arranged on one side of the liquid storage pipe.
Furthermore, the control circuit comprises a circuit conversion module, a micro signal processor and a display;
the capacitance sensor is electrically connected with the micro signal processor through the circuit conversion module, and the micro signal processor is electrically connected with the display and the electromagnetic valve.
Furthermore, the liquid inlet of the liquid storage pipe is arranged at the top of the liquid storage pipe and is communicated with the liquid drainage equipment.
The invention also provides a cerebrospinal fluid drainage speed monitoring method, wherein a capacitance sensor senses the change of the liquid amount in a liquid storage tube, the capacitance between the capacitance sensors changes correspondingly along with the real-time change of the flow in the liquid storage tube, a circuit conversion module converts the variation of the capacitance into an electric signal and transmits the electric signal to a micro signal processor, and the micro signal processor calculates the variation height of the liquid in the liquid storage tube according to the variation of the capacitance, so that the drainage speed is calculated and is reflected on a display;
when the liquid in the liquid storage tube is about to reach the measuring range, namely the capacitance in the capacitance sensor reaches a preset value, the micro-signal processor controls the electromagnetic valve to be opened, and the liquid in the liquid storage tube is guided into the liquid storage bag.
Compared with the prior art, the invention has the advantages that: according to the invention, the change quantity of the cerebrospinal fluid volume in the liquid storage tube is skillfully converted into the capacitance change quantity of the capacitance sensor, then the capacitance change quantity is converted into an electric signal, and the electric signal is processed by the micro-signal processor and then converted into a corresponding drainage speed value, so that the problem that medical staff cannot monitor the cerebrospinal fluid drainage speed in real time in clinic is well solved, the real-time monitoring performance is ensured, and the detection precision and the anti-interference capability of the liquid level monitoring system are improved by using the capacitance sensor. Meanwhile, the drainage liquid can be automatically discharged by adopting the control of the electromagnetic valve, so that the waste of manpower is avoided, and the design concept of automation is met.
Drawings
Fig. 1 is a schematic overall structure diagram of a cerebrospinal fluid drainage rate monitoring device based on a capacitive sensor in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described below.
As shown in fig. 1, the invention provides a cerebrospinal fluid drainage speed monitoring device based on a capacitive sensor, which comprises a liquid storage tube 1, a capacitive sensor 2, an electromagnetic valve 3, a liquid storage bag 4 and a control circuit;
the capacitance sensor 2 is arranged on the outer wall of the liquid storage pipe 1 and is used for sensing the flow change in the liquid storage pipe 1; the liquid storage pipe 1 is communicated with the liquid storage bag 4 through a pipeline, and the electromagnetic valve 3 is preset on the pipeline; the electromagnetic valve 3 and the capacitance sensor 2 are connected with a control circuit.
In this embodiment, the capacitive sensor 2 is two coplanar electrode plates, and the two coplanar electrode plates are disposed on one side of the liquid storage tube.
In the embodiment, the control circuit comprises a circuit conversion module, a micro signal processor and a display;
the capacitance sensor 2 is connected with a micro signal processor through a circuit conversion module, and the micro signal processor is connected with a display and an electromagnetic valve 3.
In this embodiment, the liquid inlet of the liquid storage tube 1 is arranged at the top of the liquid storage tube 1 and is communicated with the liquid drainage device.
In this embodiment, the operation principle of the monitoring device of the present invention is as follows: the liquid drainage device drains cerebrospinal fluid into the liquid storage pipe 1 in real time, the cerebrospinal fluid capacity inside the liquid storage pipe 1 changes in real time, at the moment, the capacitance between electrode plates arranged on one side of the liquid storage pipe 1 also changes, the variable quantity of the capacitance transmits the converted signal to the micro signal processor through the circuit conversion module, and the received electric signal is converted into a corresponding drainage speed to be output on a display through presetting a corresponding model between voltage and drainage speed inside the micro signal processor, so that the medical staff can observe the drainage speed visually; when the cerebrospinal fluid of 1 inside of liquid storage tube is about to reach the range scope, when the capacitance value of 2 inside of capacitive sensor is about to reach the predetermined value promptly, micro signal processor control solenoid valve 3 is opened, keeps the leading-in liquid storage bag 4 of 1 inside liquid storage tube to unloading liquid storage tube 1, the cerebrospinal fluid of being convenient for continues to be leading-in.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A cerebrospinal fluid drainage speed monitoring device based on a capacitive sensor is characterized by comprising a liquid storage tube, the capacitive sensor, an electromagnetic valve, a liquid storage bag and a control circuit;
the capacitance sensor is arranged on the outer wall of the liquid storage pipe and is used for sensing the change of the internal flow of the liquid storage pipe; the liquid storage pipe is communicated with the liquid storage bag through a pipeline, and the electromagnetic valve is preset on the pipeline; the electromagnetic valve and the capacitance sensor are both electrically connected with the control circuit.
2. The device for monitoring the drainage rate of cerebrospinal fluid based on the capacitive sensor as claimed in claim 1, wherein said capacitive sensor is two coplanar electrode pads, said two electrode pads being respectively disposed on one side of said reservoir.
3. The capacitive sensor based cerebrospinal fluid drainage rate monitoring device of claim 1, wherein the control circuit comprises a circuit conversion module, a micro-signal processor and a display;
the capacitance sensor is electrically connected with the micro signal processor through the circuit conversion module, and the micro signal processor is electrically connected with the display and the electromagnetic valve.
4. The device for monitoring the drainage rate of cerebrospinal fluid based on the capacitive sensor as claimed in claim 1, wherein the fluid inlet of the fluid reservoir is disposed at the top of the fluid reservoir and is in communication with a fluid drainage device.
5. A cerebrospinal fluid drainage speed monitoring method is characterized in that the cerebrospinal fluid drainage speed monitoring device based on the capacitive sensor as claimed in any one of claims 1 to 4 is used, wherein the capacitive sensor senses the change of the amount of liquid in a liquid storage tube, the capacitance between the capacitive sensors changes correspondingly with the real-time change of the flow in the liquid storage tube, a circuit conversion module converts the change amount of the capacitance into an electric signal and transmits the electric signal to a micro signal processor, and the micro signal processor calculates the change height of the liquid in the liquid storage tube according to the change amount of the capacitance, so that the drainage speed is calculated, and the drainage speed is reflected on a display;
when the liquid in the liquid storage tube is about to reach the measuring range, namely the capacitance in the capacitance sensor is about to reach the preset value, the micro signal processor controls the electromagnetic valve to be opened, and the liquid in the liquid storage tube is guided into the liquid storage bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078015.1A CN112043946A (en) | 2020-10-10 | 2020-10-10 | Cerebrospinal fluid drainage speed monitoring device based on capacitive sensor and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078015.1A CN112043946A (en) | 2020-10-10 | 2020-10-10 | Cerebrospinal fluid drainage speed monitoring device based on capacitive sensor and operation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112043946A true CN112043946A (en) | 2020-12-08 |
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ID=73606280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011078015.1A Pending CN112043946A (en) | 2020-10-10 | 2020-10-10 | Cerebrospinal fluid drainage speed monitoring device based on capacitive sensor and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112043946A (en) |
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2020
- 2020-10-10 CN CN202011078015.1A patent/CN112043946A/en active Pending
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