WO2022116671A1 - 一种脑室引流-压力控制*** - Google Patents

一种脑室引流-压力控制*** Download PDF

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WO2022116671A1
WO2022116671A1 PCT/CN2021/122087 CN2021122087W WO2022116671A1 WO 2022116671 A1 WO2022116671 A1 WO 2022116671A1 CN 2021122087 W CN2021122087 W CN 2021122087W WO 2022116671 A1 WO2022116671 A1 WO 2022116671A1
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Prior art keywords
amplifier
pressure
chip
drainage
control system
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PCT/CN2021/122087
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English (en)
French (fr)
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张军
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张军
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Publication of WO2022116671A1 publication Critical patent/WO2022116671A1/zh

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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—Detecting, measuring or recording 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

Definitions

  • the invention relates to medical equipment, in particular to a ventricle drainage-pressure control system.
  • Continuous ventricular drainage is a medical operation name. It is suitable for patients with severe intracranial pressure such as space-occupying lesions in the ventricle or posterior cranial fossa, frequent vomiting, physical weakness, and decreased vision. Angiography and surgery, and drainage is still required for several days after surgery.
  • the measurement of intracranial pressure by connecting an arterial or venous pressure sensor through a ventricular drainage tube has been confirmed to have certain clinical significance.
  • the drainage speed and volume are controlled by adjusting the height of the drainage tube, and the intracranial pressure is measured by manually controlling the three-way valve. It is impossible to strictly control the drainage speed and drainage volume of the drainage tube, and it is impossible to precisely adjust and control the drainage pressure of the drainage tube, and each pressure measurement is realized by manually switching the three-way valve, which increases the workload of medical staff.
  • the purpose of the present invention is to provide a ventricle drainage-pressure control system to solve the problems raised in the above background art.
  • the present invention provides the following technical solutions:
  • a ventricle drainage-pressure control system comprising a pressure sensor and a ventricle drainage tube, the pressure sensor and the ventricle drainage tube are connected to the same electromagnetic three-way valve, the pressure sensor is connected with a splitter, and the splitter is a one-to-two interface, The splitter is respectively connected with the ECG monitor and the pressure data splitter, the front end of the pressure data splitter 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 solenoid valve three-way valve is also connected with a drainage bag.
  • the pressure measurement and regulation module includes a pulse drive 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 connected in turn, and the signal processing part and the pressure comparison control part are all connected with
  • the pulse driving part is connected, and the pulse driving part is connected with the electromagnetic three-way valve.
  • the signal processing part includes a chip U5, the chip U5 is connected to the amplifier U8A and the amplifier U6B, the amplifier U8A is connected to the amplifiers U8B and U10B, the amplifier U6B is connected to the amplifier U10A, and the amplifier U10B is also connected to a Zener diode ZD1 and a Zener diode ZD2.
  • the pressure comparison control part includes chip U7, chip U7 is connected to amplifier U10A, amplifier U6A and amplifier U9B, and amplifier U6A A resistor R37 is connected with the amplifier U9B, the amplifier U6A is connected with a resistor R11, a resistor R20 and a variable resistor R30, the amplifier U9B is also connected with a resistor R50, a variable resistor R52 and a transistor Q5, and the amplifier U6A is connected with a transistor T1 and a transistor Q4; all Described pulse drive part comprises chip U4, chip U4 is connected with varistor VRZ1, varistor VRZ2 and, capacitor C13, triode Q2 and triode Q3, described pulse drive part also has button switch S3, and button switch S3 is located between chip U4 and triode Q2 ;
  • the display part 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 also connected with a varistor VRZ5 and a variable resistor R56
  • the high-voltage display includes chips U12, Amplifier U13A and display module DS2, amplifier U13A is also connected with varistor VRZ6 and variable resistor R58.
  • the open drainage of the ventricle drainage tube is controlled by the intracranial pressure.
  • the drainage is opened through a three-way solenoid valve.
  • pulsed open drainage is used. If the weak pressure drops to the lower limit of the set pressure, the ventricular drainage is closed and the intracranial pressure is continuously monitored. Instead of controlling the continuous drainage by visually adjusting the height difference between the drainage pot and the patient's head.
  • the upper and lower pressure limits of the solenoid valve to open and close the drainage can be set to achieve precise and controllable drainage.
  • This drainage system can also be connected with the drainage tube of the lumbar pond to achieve the purpose of intermittent drainage.
  • FIG. 1 is a schematic diagram of the structural connection of the present invention.
  • FIG. 2 is a block diagram of the circuit principle of the pressure measurement and regulation module in the present invention.
  • FIG. 3 is a circuit diagram of a power supply part in the present invention.
  • FIG. 4 is a circuit diagram of the pulse driving part of the present invention.
  • FIG. 5 is a circuit diagram of the signal processing part and the pressure comparison control part in the present invention.
  • FIG. 6 is a circuit diagram of a medium and low voltage display of the present invention.
  • FIG. 7 is a circuit diagram of a medium and high voltage display of the present invention.
  • 1- ventricular drainage tube 2- electromagnetic three-way valve, 3- drainage bag, 4- pressure sensor, 5- line divider, 6- ECG monitor, 7- pressure data line, 8- pressure measurement and control module.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • a ventricular drainage-pressure control system including a pressure sensor 4 and a ventricular drainage tube 1, the pressure sensor 4 and the ventricular drainage tube 1 are connected to the same electromagnetic three-way valve 2, and the pressure sensor 4 is connected with a
  • the splitter 5 is a one-to-two interface, the splitter 5 is respectively connected with an ECG monitor 6 and a pressure data splitter 7, and the front end of the pressure data splitter 7 is connected with a pressure measurement and regulation module 8, the described
  • the pressure measurement and regulation module 8 is also directly connected to the electromagnetic three-way valve 2 .
  • solenoid valve three-way valve is also connected with a drainage bag 3 .
  • the ventricle drainage tube 1 When in use, the ventricle drainage tube 1 is placed into the ventricle to drain cerebrospinal fluid, and the electromagnetic three-way valve 2 is connected with the ventricular drainage tube 1, which is responsible for automatically switching the opening of the drainage channel and the pressure measurement channel, thereby controlling the drainage of cerebrospinal fluid and monitoring the pressure; pressure;
  • the sensor 4 is linked with an interface of the electromagnetic three-way valve 2, converts the pressure into an electrical signal, and the output end is connected to the splitter 5, which is responsible for dividing the electrical signal into two, converting it into two interfaces, one end is connected
  • the commonly used ECG monitor 6 measures pressure, another interface is connected to the pressure data branch 7, and the pressure data branch 7 is connected to the pressure measurement and regulation module 8 to transmit pressure electrical signals, and the pressure measurement and regulation module 8 is responsible for monitoring intracranial pressure. , and is responsible for controlling the operation of the electromagnetic three-way valve 2 according to the set pressure upper limit (open drainage) and lower limit (close drainage).
  • the pressure measurement and regulation module 8 includes 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 connected in sequence, the signal processing part and the pressure comparison part
  • the control part is connected with the pulse drive part, and the pulse drive part is connected with the electromagnetic three-way valve 2, which is used for the pulse drive control signal required by the electromagnetic three-way valve 2 to control the switch of the electromagnetic three-way valve 2, and the switching time can be adjusted.
  • the signal processing part is directly connected to the pressure sensor 4, and is used to provide signal following, amplification, filtering, sampling and processing of the true RMS connected to the sensor.
  • the pressure comparison control part provides the comparison control between the RMS value of the pressure signal and the set threshold value.
  • the fixed signal specifically the stable pressure signal when the electromagnetic three-way valve 2 is closed is compared with the upper and lower thresholds; the display part is used to provide the setting threshold display function of high pressure and low pressure.
  • the signal processing part includes a chip U5, the chip U5 is connected to the amplifier U8A and the amplifier U6B, the amplifier U8A is connected to the amplifiers U8B and U10B, the amplifier U6B is connected to the amplifier U10A, and the amplifier U10B is also connected to a Zener diode ZD1 and a Zener diode ZD2, amplifier U8B and amplifier U10B are connected to power supply interface J2, and power supply interface J2 is also connected to transistor T2 and transistor T3 through resistor R48.
  • amplifier U8B and amplifier U10B provide follow-up isolation of sensor signals for subsequent amplification, which is realized by amplifier U8A.
  • the pressure comparison control part includes chip U7, chip U7 is connected to amplifier U10A, amplifier U6A and amplifier U9B, amplifier U6A and amplifier Resistor R37 is connected between U9B, amplifier U6A is connected with resistor R11, resistor R20 and variable resistor R30, amplifier U9B is also connected with resistor R50, variable resistor R52 and transistor Q5, amplifier U6A is connected with transistor T1 and transistor Q4, amplifier U6A, Amplifier U9B provides high and low voltage comparators for pressure, resistor R11, resistor R20 and variable resistor R30 provide the setting and adjustment of the high voltage threshold, resistor R37, resistor R50 and variable resistor R52 provide the setting and adjustment of the low voltage threshold, The triode T1 and the triode Q4 provide the hysteresis control of the threshold reference.
  • the driving start signal RESET When the pressure exceeds the upper threshold, the driving start signal RESET is provided, and when the pressure is lower than the lower threshold, the RESET signal is turned off.
  • the triode Q4 and the triode Q5 are respectively connected with a switch S1 and a switch S2, stop the pulse output of the solenoid valve, the switch S2 provides the setting control of the high pressure threshold, and the switch S1 provides the setting control of the low pressure threshold.
  • the pulse driving part includes a chip U4, the chip U4 is connected with a varistor VRZ1, a varistor VRZ2 and a capacitor C13, a triode Q2 and a triode Q3, and the chip U4 multivibrator constitutes the pulse drive of the electromagnetic three-way valve 2, which starts when the high voltage exceeds the threshold.
  • the solenoid valve is activated in a pulsed manner.
  • the rheostat VRZ1, the rheostat VRZ2, and the capacitor C13 adjust the on-off time of the pulse-driven electromagnetic three-way valve 2.
  • the transistor Q2 provides the driving ability to switch the electromagnetic three-way valve 2, and the transistor Q3 provides the electromagnetic three-way valve 2.
  • the opening and closing signals of the three-way valve 2 are supplied to the pressure sampling and holding circuit to ensure that the pressure sampling is carried out during the closing period of the electromagnetic three-way valve 2 to measure the stable pressure value, and the corresponding pulse drive time and stop are adjusted by adjusting the rheostat VRZ1 and the rheostat VRZ2. time, the pulse time can be adjusted; the pulse drive part also has a button switch S3, the button switch S3 is located between the chip U4 and the triode Q2, through the button switch S3, the button on the module can be manually controlled to open the electromagnetic three-way valve 2. Realize continuous release of cerebrospinal fluid (use this function when collecting cerebrospinal fluid samples).
  • the signal processing part, the pressure comparison control part, the pulse driving part and the display part are all connected to the same power supply part, and the power supply part includes chip U1, chip U2 and chip U3, and realizes a wide input voltage range ( 24-50V) step-down 12V, 12V provides electromagnetic three-way valve 2 power supply and subsequent positive and negative 5V power supply, chip U2 step-down circuit realizes +5V power supply, and chip U3 realizes -5V power supply.
  • the power supply part includes chip U1, chip U2 and chip U3, and realizes a wide input voltage range ( 24-50V) step-down 12V, 12V provides electromagnetic three-way valve 2 power supply and subsequent positive and negative 5V power supply, chip U2 step-down circuit realizes +5V power supply, and chip U3 realizes -5V power supply.
  • the display part 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 also connected with a varistor VRZ5 and a variable resistor R56
  • high voltage display includes chip U12
  • amplifier U13A is also connected with varistor VRZ6 and variable resistor R58
  • U11 samples the setting benchmark before hysteresis action and maintains the display
  • U12 samples the setting benchmark before hysteresis action and keep it displayed.

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Abstract

一种脑室引流-压力控制***，包括压力传感器（4）和脑室引流管（1），压力传感器（4）和脑室引流管（1）连接同一个电磁三通阀门（2），压力传感器（4）连接有分线器（5），分线器（5）为一拖二接口，分线器（5）分别连接有心电监护仪（6）和压力数据分线（7），压力数据分线（7）前端连接有压力测量和调控模块（8），压力测量和调控模块（8）还与电磁三通阀门（2）直接连接，通过自动化操作，避免手动旋转三通阀，减少颅内感染，减少医务人员工作量，间断引流，避免目前持续引流带来的风险。

Description

一种脑室引流-压力控制*** 技术领域
本发明涉及医疗设备，具体是一种脑室引流-压力控制***。
背景技术
脑室持续引流是一种医学操作名称，适用于脑室内或颅后窝占位病变，呕吐频繁、身体衰弱、视力减退等严重颅内压增高者，可先作脑室持续引流，病情改善后再行造影和手术，术后仍须引流数日。
目前经脑室引流管连接动脉或静脉压力传感器测量颅内压已经被证实有一定的临床意义。单纯引流时是通过调整引流管高度控制引流速度和引流量，且颅内压是通过手动控制三通阀来测量。无法严格控制引流管引流速度以及引流量，无法精准调节、控制引流管引流压力，且每次测压均通过手动转换三通阀来实现、增加了医护人员工作量。
发明内容
本发明的目的在于提供一种脑室引流-压力控制***，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种脑室引流-压力控制***，包括压力传感器和脑室引流管，压力传感器和脑室引流管连接同一个电磁三通阀门，所述压力传感器连接有分线器，分线器为一拖二接口，分线器分别连接有心电监护仪和压力数据分线，压力数据分线前端连接有压力测量和调控模块，所述压力测量和调控模块还与电磁三通阀门直接连接。
所述电磁阀三通阀门还连接有引流袋。
所述压力测量和调控模块包括脉冲驱动部分、信号处理部分、压力比较控制部分和显示部分，所述信号处理部分、压力比较控制部分和显示部分依次连接，信号处理部分及压力比较控制部分均与脉冲驱动部分相连接，脉冲驱动部分与电磁三通阀门相连接。
所述信号处理部分包括芯片U5，芯片U5接入放大器U8A和放大器U6B，放大器U8A接入放大器U8B和U10B，放大器U6B连接放大器U10A，放大器U10B还连接有稳压二极管 ZD1和稳压二极管ZD2，放大器U8B和放大器U10B均连接供电接口J2，同时供电接口J2还通过电阻R48连接有三极管T2和三极管T3；所述压力比较控制部分包括芯片U7，芯片U7连接放大器U10A、放大器U6A和放大器U9B，放大器U6A和放大器U9B之间连接有电阻R37，放大器U6A连接有电阻R11、电阻R20和变化电阻R30，放大器U9B还连接有电阻R50、变化电阻R52和三极管Q5，放大器U6A连接有三极管T1和三极管Q4；所述脉冲驱动部分包括芯片U4，芯片U4连接有变阻器VRZ1、变阻器VRZ2和、电容C13、三极管Q2和三极管Q3，所述脉冲驱动部分还具有按钮开关S3，按钮开关S3位于芯片U4和三极管Q2之间；所述信号处理部分、压力比较控制部分、脉冲驱动部分和显示部分均连接同一电源部分，所述电源部分包括芯片U1、芯片U2和芯片U3。
作为本发明的优选方案：所述显示部分包括低压显示和高压显示，低压显示包括芯片U11、放大器U9A和显示模组DS1，芯片U11还连接有变阻器VRZ5和变化电阻R56，高压显示包括芯片U12、放大器U13A和显示模组DS2，放大器U13A还连接有变阻器VRZ6和变化电阻R58。
与现有技术相比，本发明的有益效果是：
1.自动化操作，避免手动旋转三通阀，减少颅内感染，减少医务人员工作量。
2脑室引流管的开放引流是以颅内压为目标控制的，达到设定的颅内压力上限则通过三通电磁阀打开引流，引流过程中采用脉冲式开放引流、短暂关闭期间则监测颅内压评估引流后的压力值，弱压力下降至设置的压力下限，则关闭脑室引流，转变为持续监测颅内压。而不是通过目测调节引流壶与患者头颅的高度差而控制持续引流。
3.间断引流，避免目前持续引流带来的风险。
4.电磁阀开放引流和关闭引流的压力上限、下限可设置，以达到精准化、可控化引流。
5.此引流***也可与腰大池引流管连接，达到间断引流的目的。
附图说明
图1为本发明的结构连接示意图。
图2为本发明中压力测量和调控模块的电路原理框图。
图3为本发明中电源部分的电路图。
图4为本发明中脉冲驱动部分的电路图。
图5为本发明中信号处理部分和压力比较控制部分的电路图。
图6为本发明中低压显示的电路图。
图7为本发明中高压显示的电路图。
图中1-脑室引流管，2-电磁三通阀门，3-引流袋，4-压力传感器，5-分线器，6-心电监护仪，7-压力数据分线，8-压力测量和调控模块。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例1：
请参阅图1-5，一种脑室引流-压力控制***，包括压力传感器4和脑室引流管1，压 力传感器4和脑室引流管1连接同一个电磁三通阀门2，所述压力传感器4连接有分线器5，分线器5为一拖二接口，分线器5分别连接有心电监护仪6和压力数据分线7，压力数据分线7前端连接有压力测量和调控模块8，所述压力测量和调控模块8还与电磁三通阀门2直接连接。
进一步的，所述电磁阀三通阀门还连接有引流袋3。
在使用时，脑室引流管1置入脑室内以引流脑脊液，电磁三通阀门2与脑室引流管1链接，负责自动转换引流通路与压力测量通路的开放，从而控制脑脊液引流、并监测压力；压力传感器4与电磁三通阀门2的一个接口链接，转变压力为电信号，输出端与分线器5连接，分线器5负责把的电信号一分为二，转换成两个接口，一端连接常用的心电监护仪6测量压力，另一接口与压力数据分线7连接，压力数据分线7与压力测量和调控模块8连接传送压力电信号，压力测量和调控模块8负责监测颅内压，并根据设定的压力上限(开放引流)和下限负责(关闭引流)控制电磁三通阀门2的运作。
具体的，所述压力测量和调控模块8包括脉冲驱动部分、信号处理部分、压力比较控制部分和显示部分，所述信号处理部分、压力比较控制部分和显示部分依次连接，信号处理部分及压力比较控制部分均与脉冲驱动部分相连接，脉冲驱动部分与电磁三通阀门2相连接，用于电磁三通阀门2需要的脉冲驱动控制信号，控制电磁三通阀门2的开关，开关时间可以调节，信号处理部分与压力传感器4直接对接，用于提供与传感器对接的信号跟随、放大、滤波、采样及真有效值的处理，压力比较控制部分提供压力信号有效值与设定阈值的比较控制，设定信号，具体采用电磁三通阀门2关闭时的稳定压力信号与上下阈值比较；显示部分用于提供高压低压的设定阈值显示功能。
具体的，所述信号处理部分包括芯片U5，芯片U5接入放大器U8A和放大器U6B，放大器U8A接入放大器U8B和U10B，放大器U6B连接放大器U10A，放大器U10B还连接有稳压二极管ZD1和稳压二极管ZD2，放大器U8B和放大器U10B均连接供电接口J2，同时供电接口J2还通过电阻R48连接有三极管T2和三极管T3，工作时，放大器U8B，放大器U10B提供传感器信号的跟随隔离供后续放大，放大器U8A实现差分放大和零点幅度调节， 芯片U5实现真有效值转换，放大器U6B，放大器U10A实现滤波缓冲，所述压力比较控制部分包括芯片U7，芯片U7连接放大器U10A、放大器U6A和放大器U9B，放大器U6A和放大器U9B之间连接有电阻R37，放大器U6A连接有电阻R11、电阻R20和变化电阻R30，放大器U9B还连接有电阻R50、变化电阻R52和三极管Q5，放大器U6A连接有三极管T1和三极管Q4，放大器U6A，放大器U9B提供压力的高低压比较器，电阻R11，电阻R20和变化电阻R30提供了高压阈值的设定并可调节，电阻R37，电阻R50和变化电阻R52提供了低压阈值的设定并可调节，三极管T1，三极管Q4提供阈值基准的迟滞控制，在压力超出上限阈值时，提供驱动启动信号RESET，在压力低于下限阈值时关闭RESET信号，所述三极管Q4和三极管Q5分别连接有开关S1和开关S2，停止电磁阀脉冲输出，开关S2提供高压阈值的设定控制，开关S1提供低压阈值的设定控制。
所述脉冲驱动部分包括芯片U4，芯片U4连接有变阻器VRZ1、变阻器VRZ2和、电容C13、三极管Q2和三极管Q3，芯片U4多谐振荡器构成电磁三通阀门2的脉冲驱动，在高压超过阈值出发RESET信号后启动，脉冲式开启电磁阀，变阻器VRZ1、变阻器VRZ2、电容C13调节脉冲驱动电磁三通阀门2的导通关闭时间，三极管Q2提供开关电磁三通阀门2的驱动能力，三极管Q3提供电磁三通阀门2的开通关闭信号供压力采样保持电路，确保压力采样在电磁三通阀门2关闭期间进行以测到稳定压力值，通过变阻器VRZ1和变阻器VRZ2的调节来调节相应的脉冲驱动时间及停止时间，实现脉冲时间可调；所述脉冲驱动部分还具有按钮开关S3，按钮开关S3位于芯片U4和三极管Q2之间，通过按钮开关S3，可以手动控制在模块的按钮，从而打开电磁三通阀门2，实现持续释放脑脊液(采集脑脊液标本时使用该功能)。
进一步的，所述信号处理部分、压力比较控制部分、脉冲驱动部分和显示部分均连接同一电源部分，所述电源部分包括芯片U1、芯片U2和芯片U3，通过三个芯片实现宽输入电压范围(24-50V)降压12V，12V提供电磁三通阀门2供电及后续正负5V的供电，芯片U2降压电路实现+5V供电，芯片U3实现-5V供电。
实施例2：
参阅图6、7，在实施例1的基础之上，所述显示部分包括低压显示和高压显示，低压显示包括芯片U11、放大器U9A和显示模组DS1，芯片U11还连接有变阻器VRZ5和变化电阻R56，高压显示包括芯片U12、放大器U13A和显示模组DS2，放大器U13A还连接有变阻器VRZ6和变化电阻R58，U11采样迟滞动作前的设定基准并保持显示，U12采样迟滞动作前的设定基准并保持显示。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (8)

  1. 一种脑室引流-压力控制***，包括压力传感器(4)和脑室引流管(1)，其特征在于，压力传感器(4)和脑室引流管(1)连接同一个电磁三通阀门(2)，所述压力传感器(4)连接有分线器(5)，分线器(5)为一拖二接口，分线器(5)分别连接有心电监护仪(6)和压力数据分线(7)，压力数据分线(7)前端连接有压力测量和调控模块(8)，所述压力测量和调控模块(8)包括脉冲驱动部分、信号处理部分、压力比较控制部分和显示部分，所述信号处理部分、压力比较控制部分和显示部分依次连接，信号处理部分及压力比较控制部分均与脉冲驱动部分相连接，所述压力测量和调控模块(8)中的脉冲驱动部分与电磁三通阀门(2)相连接。
  2. 根据权利要求1所述的一种脑室引流-压力控制***，其特征在于，所述电磁阀三通阀门还连接有引流袋(3)。
  3. 根据权利要求1所述的一种脑室引流-压力控制***，其特征在于，所述信号处理部分包括芯片U5，芯片U5接入放大器U8A和放大器U6B，放大器U8A接入放大器U8B和U10B，放大器U6B连接放大器U10A，放大器U10B还连接有稳压二极管ZD1和稳压二极管ZD2，放大器U8B和放大器U10B均连接供电接口J2，同时供电接口J2还通过电阻R48连接有三极管T2和三极管T3。
  4. 根据权利要求3所述的一种脑室引流-压力控制***，其特征在于，所述压力比较控制部分包括芯片U7，芯片U7连接放大器U10A、放大器U6A和放大器U9B，放大器U6A和放大器U9B之间连接有电阻R37，放大器U6A连接有电阻R11、电阻R20和变化电阻R30，放大器U9B还连接有电阻R50、变化电阻R52和三极管Q5，放大器U6A连接有三极管T1和三极管Q4。
  5. 根据权利要求4所述的一种脑室引流-压力控制***，其特征在于，所述脉冲驱动部分包括芯片U4，芯片U4连接有变阻器VRZ1、变阻器VRZ2和、电容C13、三极管Q2和三极管Q3，所述脉冲驱动部分还具有按钮开关S3，按钮开关S3位于芯片U4和三极管Q2之间。
  6. 根据权利要求5所述的一种脑室引流-压力控制***，其特征在于，所述信号处理 部分、压力比较控制部分、脉冲驱动部分和显示部分均连接同一电源部分，所述电源部分包括芯片U1、芯片U2和芯片U3。
  7. 根据权利要求1所述的一种脑室引流-压力控制***，其特征在于，所述显示部分包括低压显示和高压显示。
  8. 根据权利要求7所述的一种脑室引流-压力控制***，其特征在于，低压显示包括芯片U11、放大器U9A和显示模组DS1，芯片U11还连接有变阻器VRZ5和变化电阻R56，高压显示包括芯片U12、放大器U13A和显示模组DS2，放大器U13A还连接有变阻器VRZ6和变化电阻R58。
PCT/CN2021/122087 2020-12-02 2021-09-30 一种脑室引流-压力控制*** WO2022116671A1 (zh)

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