CN112316285A - Ventricular drainage-pressure control system - Google Patents
Ventricular drainage-pressure control systemDownload PDFInfo
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- CN112316285A CN112316285ACN202011384619.9ACN202011384619ACN112316285ACN 112316285 ACN112316285 ACN 112316285ACN 202011384619 ACN202011384619 ACN 202011384619ACN 112316285 ACN112316285 ACN 112316285A
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- 230000002861ventricularEffects0.000titleclaimsabstractdescription29
- 238000009530blood pressure measurementMethods0.000claimsabstractdescription14
- 239000003990capacitorSubstances0.000claimsdescription4
- 230000001105regulatory effectEffects0.000claimsdescription3
- 238000007917intracranial administrationMethods0.000description8
- 238000010586diagramMethods0.000description6
- 210000001175cerebrospinal fluidAnatomy0.000description4
- 230000001276controlling effectEffects0.000description4
- 230000003321amplificationEffects0.000description2
- 238000006243chemical reactionMethods0.000description2
- 238000012544monitoring processMethods0.000description2
- 238000003199nucleic acid amplification methodMethods0.000description2
- 238000005070samplingMethods0.000description2
- 230000000087stabilizing effectEffects0.000description2
- 206010022773Intracranial pressure increasedDiseases0.000description1
- 206010047700VomitingDiseases0.000description1
- 230000009286beneficial effectEffects0.000description1
- 230000003139buffering effectEffects0.000description1
- 210000003703cisterna magnaAnatomy0.000description1
- 201000010099diseaseDiseases0.000description1
- 208000037265diseases, disorders, signs and symptomsDiseases0.000description1
- 238000001914filtrationMethods0.000description1
- 208000015181infectious diseaseDiseases0.000description1
- 201000009941intracranial hypertensionDiseases0.000description1
- 238000002955isolationMethods0.000description1
- 230000003902lesionEffects0.000description1
- 238000005259measurementMethods0.000description1
- 238000000034methodMethods0.000description1
- 238000002601radiographyMethods0.000description1
- 210000003625skullAnatomy0.000description1
- 230000008673vomitingEffects0.000description1
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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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Measuring fluid pressure within the body other than blood pressure, e.g. cerebral pressure ; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Neurosurgery (AREA)
- Neurology (AREA)
- Ophthalmology & Optometry (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- External Artificial Organs (AREA)
Abstract
Description
Technical Field
The invention relates to medical equipment, in particular to a ventricular drainage-pressure control system.
Background
The continuous ventricular drainage is a medical operation name, is suitable for patients with severe intracranial pressure increase, such as intracerebral or posterior fossa space occupying lesion, frequent vomiting, weak body, hypopsia and the like, can be used for continuous ventricular drainage firstly, radiography and operation are carried out after the condition of the disease is improved, and drainage is still required for several days after the operation.
At present, the measurement of intracranial pressure by connecting an arterial or venous pressure sensor through a ventricular drainage tube has proved to have certain clinical significance. When in pure drainage, the drainage speed and the drainage quantity are controlled by adjusting the height of the drainage tube, and the intracranial pressure is measured by manually controlling the three-way valve. Drainage speed and drainage volume of the drainage tube can not be strictly controlled, drainage pressure of the drainage tube can not be accurately adjusted and controlled, and pressure measurement at each time is realized and increased workload of medical workers through a manual conversion three-way valve.
Disclosure of Invention
The present invention is directed to a ventricular drainage-pressure control system, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a ventricular drainage-pressure control system comprises a pressure sensor and a ventricular drainage tube, wherein the pressure sensor and the ventricular drainage tube are connected with the same electromagnetic three-way valve, the pressure sensor is connected with a deconcentrator, the deconcentrator is a one-to-two interface, the deconcentrator is respectively connected with an electrocardiogram monitor and a pressure data deconcentration, the front end of the pressure data deconcentration is connected with a pressure measurement and regulation module, and the pressure measurement and regulation module is also directly connected with the electromagnetic three-way valve.
The electromagnetic valve three-way valve is also connected with a drainage bag.
The pressure measurement and regulation module comprises a pulse driving part, a signal processing part, a pressure comparison control part and a display part, wherein the signal processing part, the pressure comparison control part and the display part are sequentially connected, the signal processing part and the pressure comparison control part are both connected with the pulse driving part, and the pulse driving part is connected with the electromagnetic three-way valve.
The signal processing part comprises a chip U5, the chip U5 is connected with an amplifier U8A and an amplifier U6B, the amplifier U8A is connected with amplifiers U8B and U10B, the amplifier U6B is connected with an amplifier U10A, the amplifier U10B is also connected with a zener diode ZD1 and a zener diode ZD2, the amplifier U8B and the amplifier U10B are both connected with a power supply interface J2, and meanwhile, the power supply interface J2 is also connected with a triode T2 and a triode T3 through a resistor R48; the pressure comparison control part comprises a chip U7, the chip U7 is connected with an amplifier U10A, an amplifier U6A and an amplifier U9B, a resistor R37 is connected between the amplifier U6A and the amplifier U9B, the amplifier U6A is connected with a resistor R11, a resistor R20 and a variable resistor R30, the amplifier U9B is further connected with a resistor R50, a variable resistor R52 and a triode Q5, and the amplifier U6A is connected with a triode T1 and a triode Q4; the pulse driving part comprises a chip U4, the chip U4 is connected with a rheostat VRZ1, a rheostat VRZ2, a capacitor C13, a triode Q2 and a triode Q3, the pulse driving part is further provided with a button switch S3, and the button switch S3 is located between a chip U4 and the triode Q2; the signal processing section, the pressure comparison control section, the pulse driving section and the display section are all connected to the same power supply section, which includes a chip U1, a chip U2 and a chip U3.
As a preferred embodiment of the present invention: the display part comprises low-voltage display and high-voltage display, the low-voltage display comprises a chip U11, an amplifier U9A and a display module DS1, the chip U11 is further connected with a rheostat VRZ5 and a variable resistor R56, the high-voltage display comprises a chip U12, an amplifier U13A and a display module DS2, and the amplifier U13A is further connected with a rheostat VRZ6 and a variable resistor R58.
Compared with the prior art, the invention has the beneficial effects that:
1. automatic operation, avoid manual rotatory three-way valve, reduce intracranial infection, reduce medical staff work load.
2 the open drainage of ventricle drainage tube is with intracranial pressure as the target control, reaches the intracranial pressure upper limit of setting and then opens the drainage through three solenoid valve, adopts the open drainage of pulsed, then monitors the pressure value after the intracranial pressure aassessment drainage during the short time of closing in the drainage process, and weak pressure drops to the pressure lower limit of setting, then closes the ventricle drainage, changes into and lasts the monitoring intracranial pressure. Rather than controlling continuous drainage by visually adjusting the difference in height of the drainage jug and the patient's skull.
3. Interrupted drainage, and the risk brought by continuous drainage at present is avoided.
4. The upper limit and the lower limit of the pressure for opening and closing the drainage of the electromagnetic valve can be set so as to achieve accurate and controllable drainage.
5. The drainage system can also be connected with a lumbar cisterna magna drainage tube to achieve the purpose of discontinuous drainage.
Drawings
FIG. 1 is a schematic view of the structural connection of the present invention.
FIG. 2 is a schematic block diagram of the electrical circuit of the pressure measurement and regulation module of the present invention.
Fig. 3 is a circuit diagram of a power supply portion of the present invention.
Fig. 4 is a circuit diagram of a pulse driving section in the present invention.
Fig. 5 is a circuit diagram of a signal processing section and a pressure comparison control section in the present invention.
Fig. 6 is a circuit diagram of a low voltage display in the present invention.
Fig. 7 is a circuit diagram of a high voltage display in the present invention.
In the figure, 1-a ventricular drainage tube, 2-an electromagnetic three-way valve, 3-a drainage bag, 4-a pressure sensor, 5-a deconcentrator, 6-an electrocardiograph monitor, 7-a pressure data deconcentration and 8-a pressure measurement and regulation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-5, a ventricular drainage-pressure control system comprises apressure sensor 4 and a ventricular drainage tube 1, wherein thepressure sensor 4 and the ventricular drainage tube 1 are connected with the same electromagnetic three-way valve 2, thepressure sensor 4 is connected with adeconcentrator 5, thedeconcentrator 5 is a one-to-two interface, thedeconcentrator 5 is respectively connected with anelectrocardiograph monitor 6 and apressure data deconcentrator 7, the front end of thepressure data deconcentrator 7 is connected with a pressure measurement andregulation module 8, and the pressure measurement andregulation module 8 is also directly connected with the electromagnetic three-way valve 2.
Furthermore, the three-way valve of the electromagnetic valve is also connected with adrainage bag 3.
When the device is used, the ventricular drainage tube 1 is placed in a ventricle to drain cerebrospinal fluid, and the electromagnetic three-way valve 2 is connected with the ventricular drainage tube 1 and is responsible for automatically switching the opening of a drainage passage and a pressure measurement passage so as to control the drainage of the cerebrospinal fluid and monitor the pressure; thepressure sensor 4 is connected with one interface of the electromagnetic three-way valve 2, the pressure is converted into an electric signal, the output end is connected with thedeconcentrator 5, thedeconcentrator 5 is responsible for dividing the electric signal into two parts and converting the two parts into two interfaces, one end of the deconcentrator is connected with acommon electrocardiogram monitor 6 for measuring the pressure, the other interface is connected with thepressure data deconcentrator 7, thepressure data deconcentrator 7 is connected with the pressure measuring and regulatingmodule 8 for transmitting the pressure electric signal, the pressure measuring and regulatingmodule 8 is responsible for monitoring the intracranial pressure, and is responsible for controlling the operation of the electromagnetic three-way valve 2 according to the set upper pressure limit (open drainage) and lower pressure limit.
Specifically, the pressure measurement andcontrol module 8 comprises a pulse driving part, a signal processing part, a pressure comparison control part and a display part, the signal processing part, the pressure comparison control part and the display part are sequentially connected, the signal processing part and the pressure comparison control part are both connected with the pulse driving part, the pulse driving part is connected with the electromagnetic three-way valve 2, the pulse drive control signal required by the electromagnetic three-way valve 2 is used for controlling the on-off of the electromagnetic three-way valve 2, the on-off time can be adjusted, the signal processing part is directly butted with thepressure sensor 4, the pressure comparison control part provides comparison control of the pressure signal effective value and a set threshold value, and the set signal is specifically obtained by comparing a stable pressure signal when the electromagnetic three-way valve 2 is closed with an upper threshold value and a lower threshold value; the display part is used for providing a set threshold value display function of high pressure and low pressure.
Specifically, the signal processing part comprises a chip U, the chip U is connected into an amplifier U8 and an amplifier U6, the amplifier U8 is connected into the amplifier U8 and an amplifier U10, the amplifier U6 is connected with the amplifier U10, the amplifier U10 is further connected with a voltage stabilizing diode ZD and a voltage stabilizing diode ZD, the amplifier U8 and the amplifier U10 are both connected with a power supply interface J, the power supply interface J is further connected with a triode T and a triode T through a resistor R, during operation, the amplifier U8 and the amplifier U10 provide following isolation of sensor signals for subsequent amplification, the amplifier U8 realizes differential amplification and zero amplitude adjustment, the chip U realizes true effective value conversion, the amplifier U6 and the amplifier U10 realize filtering buffering, the pressure comparison control part comprises the chip U, the chip U is connected with the amplifier U10, the amplifier U6 and the amplifier U9, a resistor R is connected between the amplifier U6 and the amplifier U9, and the amplifier U6 is connected, The amplifier U9B is further connected with a resistor R50, a variable resistor R52 and a transistor Q5, the amplifier U6A is connected with a transistor T1 and a transistor Q4, the amplifier U6A and a high-low voltage comparator for providing pressure by the amplifier U9B, the resistor R11, the resistor R20 and the variable resistor R30 provide setting and adjustment of a high-voltage threshold, the resistor R37, the resistor R50 and the variable resistor R52 provide setting and adjustment of a low-voltage threshold, the transistor T1 and the transistor Q4 provide hysteresis control of a threshold reference, a driving start signal RESET is provided when the pressure exceeds an upper threshold, and a RESET signal is turned off when the pressure is lower than a lower threshold, the transistor Q4 and the transistor Q5 are respectively connected with a switch S1 and a switch S2 to stop solenoid valve pulse output, the switch S2 provides setting control of the high-voltage threshold, and the switch S1 provides setting control of the low-voltage threshold.
The pulse driving part comprises a chip U4, a chip U4 is connected with a rheostat VRZ1, a rheostat VRZ2, a capacitor C13, a triode Q2 and a triode Q3, the chip U4 multivibrator forms pulse driving of the electromagnetic three-way valve 2, the pulse driving is started after the high voltage exceeds a threshold value and a RESET signal is started, the electromagnetic valve is opened in a pulse mode, the rheostat VRZ1, the rheostat VRZ2 and the capacitor C13 adjust the on-off time of the pulse driving electromagnetic three-way valve 2, the triode Q2 provides driving capability for opening and closing the electromagnetic three-way valve 2, the triode Q3 provides an on-off signal of the electromagnetic three-way valve 2 for a pressure sampling and holding circuit, pressure sampling is ensured to be carried out during the closing period of the electromagnetic three-way valve 2 to measure a stable pressure value, and the corresponding pulse driving time and stopping time are adjusted through the adjustment of the rheostat; the pulse driving part is also provided with a button switch S3, the button switch S3 is positioned between the chip U4 and the triode Q2, and the button switch S3 can be manually controlled to control the button of the module, so that the electromagnetic three-way valve 2 is opened, and the continuous release of cerebrospinal fluid (the function is used when collecting cerebrospinal fluid samples) is realized.
Furthermore, the signal processing part, the pressure comparison control part, the pulse driving part and the display part are all connected with the same power supply part, the power supply part comprises a chip U1, a chip U2 and a chip U3, the voltage reduction of 12V within a wide input voltage range (24-50V) is realized through the three chips, the 12V provides power for the electromagnetic three-way valve 2 and the subsequent power supply of plus orminus 5V, the voltage reduction circuit of the chip U2 realizes the power supply of +5V, and the power supply of-5V is realized by the chip U3.
Example 2:
referring to fig. 6 and 7, on the basis of embodiment 1, the display portion includes a low voltage display and a high voltage display, the low voltage display includes a chip U11, an amplifier U9A and a display module DS1, the chip U11 is further connected with a rheostat VRZ5 and a change resistor R56, the high voltage display includes a chip U12, an amplifier U13A and a display module DS2, the amplifier U13A is further connected with a rheostat VRZ6 and a change resistor R58, the U11 samples a setting reference before a hysteresis action and keeps displaying, and the U12 samples a setting reference before a hysteresis action and keeps displaying.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A ventricular drainage-pressure control system comprises a pressure sensor (4) and a ventricular drainage tube (1), and is characterized in that the pressure sensor (4) and the ventricular drainage tube (1) are connected with the same electromagnetic three-way valve (2), the pressure sensor (4) is connected with a deconcentrator (5), the deconcentrator (5) is a one-to-two interface, the deconcentrator (5) is respectively connected with an electrocardiogram monitor (6) and a pressure data deconcentrator (7), the front end of the pressure data deconcentrator (7) is connected with a pressure measurement and regulation module (8), the pressure measurement and regulation module (8) comprises a pulse driving part, a signal processing part, a pressure comparison control part and a display part, the signal processing part, the pressure comparison control part and the display part are sequentially connected, and the signal processing part and the pressure comparison control part are both connected with the pulse driving part, and a pulse driving part in the pressure measuring and regulating module (8) is connected with the electromagnetic three-way valve (2).
2. The ventricular drainage-pressure control system according to claim 1, wherein the solenoid three-way valve is further connected with a drainage bag (3).
3. The ventricular drainage-pressure control system according to claim 1, wherein the signal processing part comprises a chip U5, the chip U5 is connected to an amplifier U8A and an amplifier U6B, the amplifier U8A is connected to amplifiers U8B and U10B, the amplifier U6B is connected to an amplifier U10A, the amplifier U10B is further connected to a zener diode ZD1 and a zener diode ZD2, the amplifier U8B and the amplifier U10B are both connected to a power supply interface J2, and the power supply interface J2 is further connected to a triode T2 and a triode T3 through a resistor R48.
4. The ventricular drainage-pressure control system according to claim 3, wherein the pressure comparison control part comprises a chip U7, the chip U7 is connected with an amplifier U10A, an amplifier U6A and an amplifier U9B, a resistor R37 is connected between the amplifier U6A and the amplifier U9B, a resistor R11, a resistor R20 and a variable resistor R30 are connected with the amplifier U6A, a resistor R50, a variable resistor R52 and a triode Q5 are further connected with the amplifier U9B, and a triode T1 and a triode Q4 are connected with the amplifier U6A.
5. The ventricular drainage-pressure control system according to claim 4, wherein the pulse driving part comprises a chip U4, a chip U4 is connected with a rheostat VRZ1, a rheostat VRZ2, a capacitor C13, a transistor Q2 and a transistor Q3, and the pulse driving part further comprises a push-button switch S3, and the push-button switch S3 is located between the chip U4 and the transistor Q2.
6. The ventricular drainage-pressure control system according to claim 5, wherein the signal processing part, the pressure comparison control part, the pulse driving part and the display part are all connected with the same power supply part, and the power supply part comprises a chip U1, a chip U2 and a chip U3.
7. The ventricular drainage-pressure control system of claim 1, wherein the display portion includes a low pressure display and a high pressure display.
8. The ventricular drainage-pressure control system according to claim 7, wherein the low-voltage display comprises a chip U11, an amplifier U9A and a display module DS1, the chip U11 is further connected with a rheostat VRZ5 and a variable resistor R56, the high-voltage display comprises a chip U12, an amplifier U13A and a display module DS2, and the amplifier U13A is further connected with a rheostat VRZ6 and a variable resistor R58.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384619.9ACN112316285A (en) | 2020-12-02 | 2020-12-02 | Ventricular drainage-pressure control system |
| PCT/CN2021/122087WO2022116671A1 (en) | 2020-12-02 | 2021-09-30 | Ventricular drainage-pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384619.9ACN112316285A (en) | 2020-12-02 | 2020-12-02 | Ventricular drainage-pressure control system |
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| CN112316285Atrue CN112316285A (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011384619.9APendingCN112316285A (en) | 2020-12-02 | 2020-12-02 | Ventricular drainage-pressure control system |
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| CN (1) | CN112316285A (en) |
| WO (1) | WO2022116671A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022116671A1 (en)* | 2020-12-02 | 2022-06-09 | 张军 | Ventricular drainage-pressure control system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022116671A1 (en) | 2022-06-09 |
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