CN106823021A - Negative pressure drainage regulator, system and its control method including the device - Google Patents
Negative pressure drainage regulator, system and its control method including the device Download PDFInfo
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- CN106823021A CN106823021A CN201510882015.XA CN201510882015A CN106823021A CN 106823021 A CN106823021 A CN 106823021A CN 201510882015 A CN201510882015 A CN 201510882015A CN 106823021 A CN106823021 A CN 106823021A
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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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
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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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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Abstract
本发明提供了一种被设置在负压源和积液罐之间的引流管处的负压引流调压装置。该负压引流调压装置包括：压力传感器，用于感测并反馈引流管中流向积液罐的气体的压力值；以及，阀组件，用于根据用户的选择能够在连续恒压模式和间断调压模式之间切换。该阀组件包括：机械调压阀，设置在引流管靠近负压源侧，用于预先设定一安全负压值；第一电磁阀，设置在引流管靠近积液罐侧，用于根据压力传感器反馈的压力值以通断方式实现引流管内的低负压状态；以及，第二电磁阀，设置在引流管靠近积液罐侧，用于根据压力传感器反馈的压力值以通断方式实现引流管内的高负压状态。本发明还提供了包括前述装置的负压引流调压系统及其控制方法。
The invention provides a negative pressure drainage and pressure regulating device arranged at a drainage tube between a negative pressure source and a liquid accumulation tank. The negative pressure drainage pressure regulating device includes: a pressure sensor, used for sensing and feeding back the pressure value of the gas flowing to the liquid accumulation tank in the drainage tube; Switch between regulation modes. The valve assembly includes: a mechanical pressure regulating valve, which is arranged on the side of the drainage tube close to the negative pressure source, and is used to preset a safe negative pressure value; The pressure value fed back by the sensor realizes the low negative pressure state in the drainage tube in an on-off manner; and, the second solenoid valve is arranged on the side of the drainage tube close to the liquid accumulation tank, and is used to realize drainage in an on-off manner according to the pressure value fed back by the pressure sensor High negative pressure state in the tube. The present invention also provides a negative pressure drainage and pressure regulation system comprising the aforementioned device and a control method thereof.
Description
技术领域technical field
本发明涉及负压伤口恢复疗法设备领域，尤其涉及一种负压引流调压装置、一种包括该装置的负压引流治疗系统以及一种用于该系统的控制方法。The present invention relates to the field of negative pressure wound recovery therapy equipment, in particular to a negative pressure drainage pressure regulating device, a negative pressure drainage treatment system including the device and a control method for the system.
背景技术Background technique
负压伤口恢复疗法(Negative Pressure Wound Therapy，简称NPWT)是近二十年来兴起的一种加速创面愈合的新型疗法，并已被广泛应用于一系列难治性伤口的治疗，包括急性、慢性、感染性伤口。它可以提高创面愈合率、减少细菌定植和繁殖,可将更换敷料的次数降到最少。但是，实践中，在患者伤口的治疗过程中，通常开始时，伤口伤势较为严重，所需的负压较高，而到了治疗后期，伤口逐渐愈合，不需要较大的负压。也就是说，在治疗过程中，对负压值高低的需求是变化的；而如果在治疗后期继续提供高负压的话，会对伤口的愈合产生副作用，影响伤口愈合。Negative Pressure Wound Therapy (NPWT) is a new type of therapy to accelerate wound healing that has emerged in the past two decades, and has been widely used in the treatment of a series of refractory wounds, including acute, chronic, Infected wounds. It can improve wound healing rate, reduce bacterial colonization and reproduction, and minimize the number of dressing changes. However, in practice, during the treatment of a patient's wound, usually at the beginning, the wound is more serious and requires a higher negative pressure, but in the later stage of treatment, the wound gradually heals and does not require a larger negative pressure. That is to say, during the course of treatment, the demand for high or low negative pressure values changes; and if high negative pressure continues to be provided in the later stage of treatment, it will have side effects on wound healing and affect wound healing.
发明内容Contents of the invention
本发明旨在克服或者减轻上述现有使技术中存在的至少一个或多个技术问题。The present invention aims to overcome or alleviate at least one or more technical problems existing in the above-mentioned existing technologies.
本发明的至少一个目的在于提供一种用于负压引流治疗系统中的负压引流调压装置，该装置具有恒压和间断式调压两种工作模式，并且采用半自动控制方式，以便适应不同的医疗方案，有利于病人的康复。At least one object of the present invention is to provide a negative pressure drainage pressure regulating device used in a negative pressure drainage treatment system. The medical treatment plan is conducive to the recovery of the patient.
本发明的另一个目的在于提供一种具有前述负压引流调压装置的负压引流治疗系统。Another object of the present invention is to provide a negative pressure drainage treatment system having the aforementioned negative pressure drainage pressure regulating device.
本发明的又一个目的在于提供一种具有前述负压引流调压装置的负压引流治疗系统的控制方法。Another object of the present invention is to provide a control method for a negative pressure drainage treatment system provided with the aforementioned negative pressure drainage pressure regulating device.
根据本发明的第一方面，提供了一种负压引流调压装置，该装置被设置在负压源和积液罐之间的引流管处，并且，该负压引流调压装置包括：According to the first aspect of the present invention, there is provided a negative pressure drainage and pressure regulating device, which is arranged at the drainage tube between the negative pressure source and the liquid accumulation tank, and the negative pressure drainage and pressure regulating device comprises:
压力传感器，设置在引流管上并且用于感测并反馈引流管中流向积液罐的气体的压力值；以及The pressure sensor is arranged on the drainage tube and is used for sensing and feeding back the pressure value of the gas flowing to the liquid accumulation tank in the drainage tube; and
阀组件，阀组件用于根据用户的选择能够在连续恒压模式和间断调压模式之间切换，其中在连续恒压模式下引流管中的压力值保持连续恒定，而在间断调压模式下引流管中的压力值在预定时间的高负压值和低负压值之间循环，其中阀组件包括：The valve assembly is used to switch between the continuous constant pressure mode and the intermittent pressure regulation mode according to the user's choice, wherein in the continuous constant pressure mode, the pressure value in the drainage tube remains continuously constant, and in the intermittent pressure regulation mode The pressure level in the drain tube is cycled between high negative pressure value and low negative pressure value for a predetermined time, wherein the valve assembly includes:
机械调压阀，设置在引流管靠近负压源侧，用于预先设定一安全负压值；The mechanical pressure regulating valve is set on the side of the drainage tube close to the negative pressure source, and is used to preset a safe negative pressure value;
第一电磁阀，设置在引流管靠近积液罐侧，用于根据压力传感器反馈的压力值以通断方式实现引流管内的低负压状态；以及The first electromagnetic valve is arranged on the side of the drainage tube close to the liquid accumulation tank, and is used to realize the low negative pressure state in the drainage tube in an on-off manner according to the pressure value fed back by the pressure sensor; and
第二电磁阀，设置在引流管靠近积液罐侧，用于根据压力传感器反馈的压力值以通断方式实现引流管内的高负压状态。The second solenoid valve is arranged on the side of the drainage tube close to the liquid accumulation tank, and is used to realize the high negative pressure state in the drainage tube in an on-off manner according to the pressure value fed back by the pressure sensor.
优选地，第一电磁阀设置在引流管上的机械调压阀和压力传感器之间；而第二电磁阀设置在引流管上的第一电磁阀和压力传感器之间，并以通断方式确定引流管是否与外界空气连通。Preferably, the first electromagnetic valve is arranged between the mechanical pressure regulating valve on the drainage tube and the pressure sensor; and the second electromagnetic valve is arranged between the first electromagnetic valve on the drainage tube and the pressure sensor, and is determined in an on-off manner Whether the drainage tube is connected with the outside air.
前述的负压引流调压装置，在被切换到连续恒压模式的情况下，基于用户选定的恒定压力值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；而当压力传感器反馈的压力值大于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；以及The aforementioned negative pressure drainage pressure regulating device, in the case of being switched to the continuous constant pressure mode, based on the constant pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the constant pressure value selected by the user Pressure value, adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby achieving a continuous constant pressure state; and when the pressure sensor feedback If the pressure value is greater than the constant pressure value selected by the user, adjust the on-off state of the first and second solenoid valves to extract the air in the drainage tube until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby realizing continuous constant pressure. pressure state; and
在被切换到间断调压模式的情况下，基于用户选定的高/低负压值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态；而当压力传感器反馈的压力值大于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态。In the case of being switched to the intermittent pressure regulation mode, based on the high/low negative pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the high/low negative pressure value selected by the user, Adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the high/low negative pressure value selected by the user, thereby achieving a stable high/low negative pressure value; and when The pressure value fed back by the pressure sensor is greater than the high/low negative pressure value selected by the user. Adjust the on-off state of the first and second solenoid valves to extract the air in the drainage tube until the pressure value fed back by the pressure sensor is equal to the high/low negative pressure value selected by the user. /low negative pressure value, so as to achieve high/low negative pressure value steady state.
优选地，阀组件还可以包括节流阀，该节流阀设置在引流管上的第二电磁阀和压力传感器之间，用于调节引流管内的气体流速。Preferably, the valve assembly may further include a throttle valve, which is arranged between the second solenoid valve on the drainage tube and the pressure sensor, and is used to adjust the gas flow rate in the drainage tube.
优选地，负压引流调压装置还可以包括中央处理器，该中央处理器用于根据用户输入的压力值和/或压力模式实现负压自动调节和/或保持用户输入的压力值。还优选地，中央处理器还可以用于基于用户输入的稳定时间以在稳定时间内保持连续恒压状态或高/低负压值稳定状态。Preferably, the negative pressure drainage and pressure regulating device may further include a central processing unit, which is configured to automatically adjust the negative pressure and/or maintain the pressure value input by the user according to the pressure value and/or pressure mode input by the user. Also preferably, the central processing unit can also be used to maintain a continuous constant pressure state or a high/low negative pressure value stable state within the stabilization time based on the stabilization time input by the user.
优选地，负压引流调压装置还可以包括：供电电源以及电源管理器，用于提供并管理负压引流调压装置的供电；键入端，用于输入用户选定的压力值和/或压力模式；显示端，用于显示压力值和/或压力模式；以及，警报器，用于警示负压引流调压装置的运作状态。Preferably, the negative pressure drainage and pressure regulating device may also include: a power supply and a power manager for providing and managing the power supply of the negative pressure drainage and regulating device; an input terminal for inputting a user-selected pressure value and/or pressure mode; a display terminal, used to display the pressure value and/or pressure mode; and an alarm, used to warn the operation status of the negative pressure drainage and pressure regulating device.
根据本发明的第二方面，提供了一种负压引流治疗系统，该系统包括：伤口吸盘、用于提供负压的负压源、积液罐、引流管、以及如前所述的负压引流调压装置，其中，伤口吸盘和积液罐之间通过引流管相连，积液罐与负压源之间通过引流管相连，而负压引流调压装置设置在积液罐与负压源之间的引流管处。According to a second aspect of the present invention, a negative pressure drainage treatment system is provided, the system comprising: a wound suction cup, a negative pressure source for providing negative pressure, a fluid accumulation tank, a drainage tube, and the aforementioned negative pressure Drainage and pressure regulating device, wherein, the suction cup of the wound is connected to the fluid accumulation tank through a drainage tube, the fluid accumulation tank is connected to the negative pressure source through a drainage tube, and the negative pressure drainage pressure regulating device is arranged between the fluid accumulation tank and the negative pressure source between the drainage tubes.
根据本发明的第三方面，提供了一种如前所述的负压引流治疗系统的控制方法，该控制方法包括：根据用户的选择将负压引流调压装置切换至连续恒压模式或间断调压模式。According to the third aspect of the present invention, there is provided a control method of the above-mentioned negative pressure drainage treatment system, the control method includes: switching the negative pressure drainage pressure regulating device to a continuous constant pressure mode or an intermittent mode according to the user's selection Regulator mode.
优选地，该控制方法还包括：在被切换到连续恒压模式的情况下，获取用户选定的恒定压力值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；而当压力传感器反馈的压力值大于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；以及，在被切换到间断调压模式的情况下，获取用户选定的高/低负压值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态；而当压力传感器反馈的压力值大于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态。Preferably, the control method further includes: in the case of being switched to the continuous constant pressure mode, acquiring the constant pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the constant pressure value selected by the user Pressure value, adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby achieving a continuous constant pressure state; and when the pressure sensor feedback If the pressure value is greater than the constant pressure value selected by the user, adjust the on-off state of the first and second solenoid valves to extract the air in the drainage tube until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby realizing continuous constant pressure. and, in the case of being switched to the intermittent pressure regulation mode, obtain the high/low negative pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the high/low negative pressure value selected by the user Low negative pressure value, adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the high/low negative pressure value selected by the user, so as to realize the high/low negative pressure value Steady state; and when the pressure value fed back by the pressure sensor is greater than the high/low negative pressure value selected by the user, adjust the on-off state of the first and second solenoid valves to extract the air in the drainage tube until the pressure value fed back by the pressure sensor is equal to User-selected high/low negative pressure values to achieve high/low negative pressure steady state.
优选地，该控制方法还可以包括：通过节流阀调节引流管内的气体流速。Preferably, the control method may further include: adjusting the gas flow rate in the drainage tube through a throttle valve.
优选地，该控制方法还可以包括：通过中央处理器，根据用户输入的压力值和/或压力模式以及压力传感器反馈的压力值，控制阀组件的通断状态和/或节流状态。Preferably, the control method may further include: controlling the on-off state and/or throttling state of the valve assembly through the central processing unit according to the pressure value and/or pressure mode input by the user and the pressure value fed back by the pressure sensor.
本发明至少取得了如下技术效果：The present invention has achieved following technical effect at least:
如前所述，本发明提供的负压引流调压装置，其具有连续恒压模式和间断调压模式这两种工作模式，并且，采用阀组件(包括机械调压阀、第一和第二电磁阀等)与压力传感器的组合，利用半自动控制方式实现前述两种工作模式的切换，以便适应不同的医疗方案，有利于病人的康复。与此同时，本发明还提供了一种包括前述装置的负压引流治疗系统以及一种用于该系统的控制方法，其同样能够适应不同的医疗方案，有利于病人的康复。As mentioned above, the negative pressure drainage and pressure regulation device provided by the present invention has two working modes: continuous constant pressure mode and intermittent pressure regulation mode, and adopts valve assembly (including mechanical pressure regulating valve, first and second Solenoid valve, etc.) and the combination of the pressure sensor, use the semi-automatic control method to realize the switching of the aforementioned two working modes, so as to adapt to different medical schemes and benefit the rehabilitation of patients. At the same time, the present invention also provides a negative pressure drainage treatment system including the aforementioned device and a control method for the system, which can also adapt to different medical schemes and is beneficial to the recovery of patients.
本发明能够实现的其它发明目的以及可以取得的其它技术效果将在下述的具体实施方式中结合对具体实施例的描述和附图的示意进行阐述。Other invention objects that can be achieved by the present invention and other technical effects that can be obtained will be described in the following specific embodiments in conjunction with the description of specific embodiments and the schematic illustrations of the accompanying drawings.
附图说明Description of drawings
为了让本发明的上述和其它目的、特征及优点能更加明显易懂，下面结合附图和具体实施方式对本发明作进一步说明。In order to make the above and other objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
图1是根据本发明具体实施例的负压引流治疗系统的结构示意框图；Fig. 1 is a schematic block diagram of the structure of a negative pressure drainage treatment system according to a specific embodiment of the present invention;
图2是根据本发明具体实施例的负压引流治疗系统中的负压引流调压装置的结构示意框图；以及2 is a schematic block diagram of the structure of a negative pressure drainage pressure regulating device in a negative pressure drainage treatment system according to a specific embodiment of the present invention; and
图3是根据本发明具体实施例的负压引流治疗系统中的负压引流调压装置的工作流程图。Fig. 3 is a working flow chart of the negative pressure drainage pressure regulating device in the negative pressure drainage treatment system according to the specific embodiment of the present invention.
附图标号Reference number
1-伤口吸盘，2-引流管，3-积液罐，4-负压引流调压装置，400-中央处理器，410-机械调压阀，420-第一电磁阀，430-第二电磁阀，440-节流阀，450-压力传感器，460-键入端，470-显示端，480-供电电源，481-电源管理器，490-警报器，5-负压源，以及，6-其它引流管。1-wound suction cup, 2-drainage tube, 3-effusion tank, 4-negative pressure drainage pressure regulating device, 400-central processing unit, 410-mechanical pressure regulating valve, 420-first solenoid valve, 430-second solenoid valve Valve, 440-throttle valve, 450-pressure sensor, 460-input end, 470-display end, 480-power supply, 481-power manager, 490-alarm, 5-negative pressure source, and, 6-other Drainage tube.
具体实施方式detailed description
下面详细描述本发明的具体实施例，具体实施例的示例在附图中示出，其中自始至终相同的标号表示相同或相似的元件。下面参考附图描述的具体实施例是示例性的，旨在解释本发明，而不能解释为对本发明的一种限制。Specific embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like reference numerals designate like or similar elements throughout. The specific embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but not construed as a limitation of the present invention.
图1示出了一种负压引流治疗系统，其主要包括：伤口吸盘1、用于提供负压的负压源5、积液罐3、引流管2,6、以及负压引流调压装置4，其中，伤口吸盘1和积液罐3之间通过引流管6相连，积液罐3与负压源5之间通过引流管2相连，而负压引流调压装置4设置在积液罐3与负压源5之间的引流管2处。Figure 1 shows a negative pressure drainage treatment system, which mainly includes: wound suction cup 1, negative pressure source 5 for providing negative pressure, fluid accumulation tank 3, drainage tubes 2, 6, and negative pressure drainage pressure regulating device 4. Among them, the wound suction cup 1 and the fluid accumulation tank 3 are connected through the drainage tube 6, the fluid accumulation tank 3 and the negative pressure source 5 are connected through the drainage tube 2, and the negative pressure drainage and pressure regulating device 4 is arranged in the fluid accumulation tank 3 and the drainage tube 2 between the negative pressure source 5.
根据本发明，负压引流调压装置4的主要作用是根据需要提供用户所需的负压值，以及根据用户需要能够在连续恒压模式和间断调压模式之间切换运作。如图2所示，负压引流调压装置4主要包括压力传感器450和阀组件，其中，压力传感器450设置在引流管2上并且用于感测并反馈引流管2中气体的压力值，而阀组件则用于根据用户的选择能够在连续恒压模式和间断调压模式之间切换，其中，在连续恒压模式下引流管2中的压力值保持连续恒定，而在间断调压模式下引流管2中的压力值在预定时间的高负压值和低负压值之间循环。According to the present invention, the main function of the negative pressure drainage and pressure regulating device 4 is to provide the negative pressure value required by the user according to the needs, and to be able to switch between the continuous constant pressure mode and the intermittent pressure regulation mode according to the needs of the users. As shown in FIG. 2 , the negative pressure drainage pressure regulating device 4 mainly includes a pressure sensor 450 and a valve assembly, wherein the pressure sensor 450 is arranged on the drainage tube 2 and is used for sensing and feeding back the pressure value of the gas in the drainage tube 2 , and The valve assembly is used to switch between the continuous constant pressure mode and the intermittent pressure regulation mode according to the user's choice, wherein, in the continuous constant pressure mode, the pressure value in the drainage tube 2 remains continuously constant, and in the intermittent pressure regulation mode The pressure value in the drainage tube 2 cycles between a high negative pressure value and a low negative pressure value for a predetermined time.
根据本发明实施例，阀组件包括机械调压阀410、第一电磁阀420和第二电磁阀430。具体地，机械调压阀410设置在引流管2靠近负压源3侧，用于预先设定一安全负压值。例如，通过机械调压阀410可以设置一个最大安全负压值，即患者人体能承受的最大负压值，以确保当出现任何异常情况下，调压器所提供的负压值都不会超过这个最大安全负压值，从而有效保护患者的安全。机械调压阀410可以手动调节。第一电磁阀420设置在引流管2靠近积液罐3侧，用于根据压力传感器450反馈的压力值以通断方式实现引流管2内的低负压状态；第二电磁阀430同样设置在引流管2靠近积液罐3侧，用于根据压力传感器450反馈的压力值以通断方式实现引流管2内的高负压状态。具体地，第一电磁阀420设置在引流管2上的机械调压阀410和压力传感器450之间；而第二电磁阀430设置在引流管2上的第一电磁阀420和压力传感器450之间，并以通断方式确定引流管2是否与外界空气连通。这样，基于压力传感器450所感测并反馈的压力值，通过阀组件中机械调压阀410、第一电磁阀420和第二电磁阀430的配合操作，可以根据用户的选择使得装置在连续恒压模式和间断调压模式之间切换运作。According to an embodiment of the present invention, the valve assembly includes a mechanical pressure regulating valve 410 , a first solenoid valve 420 and a second solenoid valve 430 . Specifically, the mechanical pressure regulating valve 410 is arranged on the side of the drainage tube 2 close to the negative pressure source 3, and is used to preset a safe negative pressure value. For example, a maximum safe negative pressure value can be set through the mechanical pressure regulating valve 410, that is, the maximum negative pressure value that the patient's body can bear, so as to ensure that the negative pressure value provided by the pressure regulator will not exceed This maximum safe negative pressure value can effectively protect the safety of patients. The mechanical regulator valve 410 can be adjusted manually. The first electromagnetic valve 420 is arranged on the side of the drainage tube 2 close to the liquid accumulation tank 3, and is used to realize the low negative pressure state in the drainage tube 2 in an on-off manner according to the pressure value fed back by the pressure sensor 450; the second electromagnetic valve 430 is also arranged on the The drainage tube 2 is close to the liquid accumulation tank 3 side, and is used to realize the high negative pressure state in the drainage tube 2 in an on-off manner according to the pressure value fed back by the pressure sensor 450 . Specifically, the first electromagnetic valve 420 is arranged between the mechanical pressure regulating valve 410 on the drainage tube 2 and the pressure sensor 450; time, and determine whether the drainage tube 2 communicates with the outside air in an on-off manner. In this way, based on the pressure value sensed and fed back by the pressure sensor 450, through the cooperative operation of the mechanical pressure regulating valve 410, the first solenoid valve 420 and the second solenoid valve 430 in the valve assembly, the device can be operated at a continuous constant pressure according to the user's choice. Mode and intermittent voltage regulation mode switching operation.
根据本发明，负压引流调压装置4的工作流程图如图3所示。首先，通过机械调压阀410设置一个最大安全负压值。接着，根据用户需求进行模式选择。According to the present invention, the working flow diagram of the negative pressure drainage and pressure regulating device 4 is shown in FIG. 3 . Firstly, a maximum safe negative pressure value is set through the mechanical pressure regulating valve 410 . Next, select a mode according to user needs.
在被切换到连续恒压模式的情况下，基于用户选定的恒定压力值以及压力传感器450反馈的压力值，当压力传感器450反馈的压力值小于用户选定的恒定压力值，调节第一420和第二430电磁阀的通断状态，以从外界导入空气直至压力传感器450反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；而当压力传感器450反馈的压力值大于用户选定的恒定压力值，调节第一420和第二430电磁阀的通断状态，以抽取引流管2内的空气直至压力传感器450反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态。具体地，当压力传感器450反馈的压力值小于用户选定的恒定压力值，第一电磁阀420被断开而第二电磁阀430被连通，以从外界导入空气直至压力传感器450反馈的压力值等于用户选定的恒定压力值，继而断开第二电磁阀430，以保持连续恒压状态；而当压力传感器450反馈的压力值大于用户选定的恒定压力值，第一电磁阀420被连通而第二电磁阀430被断开，以抽取引流管2内的空气直至压力传感器450反馈的压力值等于用户选定的恒定压力值，继而断开第一电磁阀420，以保持连续恒压状态。In the case of being switched to the continuous constant pressure mode, based on the constant pressure value selected by the user and the pressure value fed back by the pressure sensor 450, when the pressure value fed back by the pressure sensor 450 is less than the constant pressure value selected by the user, adjust the first 420 and the on-off state of the second 430 solenoid valve, so as to introduce air from the outside until the pressure value fed back by the pressure sensor 450 is equal to the constant pressure value selected by the user, thereby realizing a continuous constant pressure state; and when the pressure value fed back by the pressure sensor 450 is greater than The constant pressure value selected by the user adjusts the on-off state of the first 420 and the second 430 solenoid valves to extract the air in the drainage tube 2 until the pressure value fed back by the pressure sensor 450 is equal to the constant pressure value selected by the user, thereby realizing Continuous constant pressure state. Specifically, when the pressure value fed back by the pressure sensor 450 is less than the constant pressure value selected by the user, the first solenoid valve 420 is disconnected and the second solenoid valve 430 is connected to introduce air from the outside until the pressure value fed back by the pressure sensor 450 equal to the constant pressure value selected by the user, and then disconnect the second solenoid valve 430 to maintain a continuous constant pressure state; and when the pressure value fed back by the pressure sensor 450 is greater than the constant pressure value selected by the user, the first solenoid valve 420 is connected And the second solenoid valve 430 is turned off to extract the air in the drainage tube 2 until the pressure value fed back by the pressure sensor 450 is equal to the constant pressure value selected by the user, and then the first solenoid valve 420 is turned off to maintain a continuous constant pressure state .
而在被切换到间断调压模式的情况下，基于用户选定的高/低负压值以及压力传感器450反馈的压力值，当压力传感器450反馈的压力值小于用户选定的高/低负压值，调节第一420和第二430电磁阀的通断状态，以从外界导入空气直至压力传感器450反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态,直到该状态稳定时间结束，切换为下一个压力状态；而当压力传感器450反馈的压力值大于用户选定的高/低负压值，调节第一420和第二430电磁阀的通断状态，以抽取引流管2内的空气直至压力传感器450反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态,直到该状态稳定时间结束，切换为下一个压力状态。具体地，当压力传感器450反馈的压力值小于用户选定的高/低负压值，第一电磁阀420被断开而第二电磁阀430被连通，以从外界导入空气直至压力传感器450反馈的压力值等于用户选定的高/低负压值，继而断开第二电磁阀430，以保持高/低负压值稳定状态；而当压力传感器450反馈的压力值大于用户选定的高/低负压值，第一电磁阀420被连通而第二电磁阀430被断开，以抽取引流管2内的空气直至压力传感器450反馈的压力值等于用户选定的高/低负压值，继而断开第一电磁阀420，以保持高/低负压值稳定状态，从而实现动态的负压稳定。In the case of being switched to the intermittent pressure regulation mode, based on the high/low negative pressure value selected by the user and the pressure value fed back by the pressure sensor 450, when the pressure value fed back by the pressure sensor 450 is less than the high/low negative pressure value selected by the user Pressure value, adjust the on-off state of the first 420 and second 430 solenoid valves, so as to introduce air from the outside until the pressure value fed back by the pressure sensor 450 is equal to the high/low negative pressure value selected by the user, so as to achieve high/low negative pressure value stable state, until the end of the state stable time, switch to the next pressure state; and when the pressure value fed back by the pressure sensor 450 is greater than the high/low negative pressure value selected by the user, adjust the first 420 and second 430 solenoid valves On-off state, to extract the air in the drainage tube 2 until the pressure value fed back by the pressure sensor 450 is equal to the high/low negative pressure value selected by the user, so as to realize the stable state of the high/low negative pressure value until the stable time of this state ends, Switch to the next stress state. Specifically, when the pressure value fed back by the pressure sensor 450 is less than the high/low negative pressure value selected by the user, the first solenoid valve 420 is disconnected and the second solenoid valve 430 is connected to introduce air from the outside until the pressure sensor 450 feedbacks The pressure value is equal to the high/low negative pressure value selected by the user, and then the second solenoid valve 430 is disconnected to keep the high/low negative pressure value stable; and when the pressure value fed back by the pressure sensor 450 is greater than the high/low negative pressure value selected by the user /low negative pressure value, the first solenoid valve 420 is connected and the second solenoid valve 430 is disconnected to extract the air in the drainage tube 2 until the pressure value fed back by the pressure sensor 450 is equal to the high/low negative pressure value selected by the user , and then turn off the first solenoid valve 420 to maintain a stable state of high/low negative pressure values, thereby realizing dynamic negative pressure stabilization.
此外，根据本发明，如图2所示，负压引流调压装置4还可以包括节流阀440。节流阀440设置在引流管2上的第二电磁阀430和压力传感器450之间，用于调节引流管2内的气体流速，以获得反馈时间。该节流阀440可以是真空节流阀。In addition, according to the present invention, as shown in FIG. 2 , the negative pressure drainage and pressure regulating device 4 may further include a throttle valve 440 . The throttle valve 440 is arranged between the second solenoid valve 430 on the drainage tube 2 and the pressure sensor 450, and is used to adjust the gas flow rate in the drainage tube 2 to obtain a feedback time. The throttle valve 440 may be a vacuum throttle valve.
与此同时，本发明提供的负压引流调压装置4还包括中央处理器400。中央处理器400用于根据用户输入的压力值和/或压力模式实现负压自动调节和/或保持用户输入的压力值。而且，中央处理器400还用于基于用户输入的稳定时间以在稳定时间内保持连续恒压状态或高/低负压值稳定状态。中央处理器400(如单片机)可以检测安装在引流管2上的压力传感器450感测的压力值，以实现不同压力的调节，并根据传感器反馈的压力值实现负压引流调压装置4的负压自动调节或保持选定压力值的功能。如前所述，中央处理器400也可以控制负压引流调压装置4实现用户设置的工作模式(连续恒压模式或间断调压模式)。并且，在间断调压模式下，中央处理器400可以根据用户设置的高负压和低负压，及高负压稳定时间和低负压稳定时间来回切换以实现用户所需的负压引流调压装置4的间断调压运作。At the same time, the negative pressure drainage and pressure regulating device 4 provided by the present invention also includes a central processing unit 400 . The central processing unit 400 is configured to automatically adjust the negative pressure and/or maintain the pressure value input by the user according to the pressure value and/or pressure mode input by the user. Moreover, the central processing unit 400 is also used to maintain a continuous constant pressure state or a high/low negative pressure value stable state within the stabilization time based on the stabilization time input by the user. The central processing unit 400 (such as a single-chip microcomputer) can detect the pressure value sensed by the pressure sensor 450 installed on the drainage tube 2 to realize the adjustment of different pressures, and realize the negative pressure of the negative pressure drainage pressure regulating device 4 according to the pressure value fed back by the sensor. Automatically adjust or maintain the selected pressure value. As mentioned above, the central processing unit 400 can also control the negative pressure drainage and pressure regulation device 4 to realize the working mode set by the user (continuous constant pressure mode or intermittent pressure regulation mode). Moreover, in the intermittent voltage regulation mode, the central processing unit 400 can switch back and forth according to the high negative pressure and low negative pressure set by the user, and the high negative pressure stabilization time and the low negative pressure stabilization time to realize the negative pressure drainage regulation required by the user. The intermittent pressure regulating operation of the pressure device 4.
此外，如图2所示，本发明提供的负压引流调压装置4还可以包供电电源480以及电源管理器481、键入端460、显示端470以及警报器490等。具体地，供电电源480以及电源管理器481用于提供并管理负压引流调压装置4的供电；键入端460用于输入用户选定的压力值和/或压力模式；显示端470用于显示压力值和/或压力模式；而警报器490用于警示负压引流调压装置4的运作状态。In addition, as shown in FIG. 2 , the negative pressure drainage and voltage regulating device 4 provided by the present invention may also include a power supply 480 , a power manager 481 , a key-in terminal 460 , a display terminal 470 , and an alarm 490 . Specifically, the power supply 480 and the power manager 481 are used to provide and manage the power supply of the negative pressure drainage and pressure regulating device 4; the input terminal 460 is used to input the pressure value and/or pressure mode selected by the user; the display terminal 470 is used to display pressure value and/or pressure mode; and the alarm 490 is used to warn the operation status of the negative pressure drainage and pressure regulating device 4 .
因此，本发明提供的负压引流调压装置，其具有连续恒压模式和间断调压模式这两种工作模式，并且，采用阀组件(包括机械调压阀、第一和第二电磁阀等)与压力传感器的组合，利用半自动控制方式实现前述两种工作模式的切换，以便适应不同的医疗方案，有利于病人的康复。与此同时，本发明还提供了一种包括前述装置的负压引流治疗系统以及一种用于该系统的控制方法，其同样能够适应不同的医疗方案，有利于病人的康复。Therefore, the negative pressure drainage pressure regulating device provided by the present invention has two working modes of continuous constant pressure mode and intermittent pressure regulating mode, and adopts valve assemblies (including mechanical pressure regulating valves, first and second electromagnetic valves, etc.) ) and the pressure sensor, and use the semi-automatic control method to realize the switching of the aforementioned two working modes, so as to adapt to different medical schemes and benefit the rehabilitation of patients. At the same time, the present invention also provides a negative pressure drainage treatment system including the aforementioned device and a control method for the system, which can also adapt to different medical schemes and is beneficial to the recovery of patients.
与此同时，本发明还提供了一种包括前述负压引流调压装置的负压引流治疗系统。如图1所示，该负压引流治疗系统包括：伤口吸盘1、用于提供负压的负压源5、积液罐3、引流管2,6、以及前述的负压引流调压装置4，其中，伤口吸盘1和积液罐3之间通过引流管6相连，积液罐3与负压源5之间通过引流管2相连，而负压引流调压装置4设置在积液罐3与负压源5之间的引流管2处。At the same time, the present invention also provides a negative pressure drainage treatment system comprising the aforementioned negative pressure drainage pressure regulating device. As shown in Figure 1, the negative pressure drainage treatment system includes: a wound suction cup 1, a negative pressure source 5 for providing negative pressure, a liquid accumulation tank 3, drainage tubes 2, 6, and the aforementioned negative pressure drainage pressure regulating device 4 , wherein, the wound suction cup 1 and the liquid accumulation tank 3 are connected through the drainage tube 6, the liquid accumulation tank 3 and the negative pressure source 5 are connected through the drainage tube 2, and the negative pressure drainage pressure regulating device 4 is arranged on the liquid accumulation tank 3 and the drainage tube 2 between the negative pressure source 5.
此外，本发明还提供了一种如前的负压引流治疗系统的控制方法。如图3所示，该控制方法包括：首先，通过机械调压阀410设置一个最大安全负压值。接着，根据用户的选择将负压引流调压装置4切换至连续恒压模式或间断调压模式。进一步地，该控制方法进一步包括：在被切换到连续恒压模式的情况下，获取用户选定的恒定压力值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；而当压力传感器反馈的压力值大于用户选定的恒定压力值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的恒定压力值，从而实现连续恒压状态；以及，在被切换到间断调压模式的情况下，获取用户选定的高/低负压值以及压力传感器反馈的压力值，当压力传感器反馈的压力值小于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以从外界导入空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态,直到该状态稳定时间结束，切换为下一个压力状态；而当压力传感器反馈的压力值大于用户选定的高/低负压值，调节第一和第二电磁阀的通断状态，以抽取引流管内的空气直至压力传感器反馈的压力值等于用户选定的高/低负压值，从而实现高/低负压值稳定状态,直到该状态稳定时间结束，切换为下一个压力状态。In addition, the present invention also provides a control method of the above negative pressure drainage treatment system. As shown in FIG. 3 , the control method includes: firstly, setting a maximum safe negative pressure value through the mechanical pressure regulating valve 410 . Next, the negative pressure drainage and pressure regulation device 4 is switched to a continuous constant pressure mode or an intermittent pressure regulation mode according to the user's selection. Further, the control method further includes: in the case of being switched to the continuous constant pressure mode, acquiring the constant pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the constant pressure value selected by the user Pressure value, adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby achieving a continuous constant pressure state; and when the pressure sensor feedback If the pressure value is greater than the constant pressure value selected by the user, adjust the on-off state of the first and second solenoid valves to extract the air in the drainage tube until the pressure value fed back by the pressure sensor is equal to the constant pressure value selected by the user, thereby realizing continuous constant pressure. and, in the case of being switched to intermittent pressure regulation mode, obtain the high/low negative pressure value selected by the user and the pressure value fed back by the pressure sensor, when the pressure value fed back by the pressure sensor is less than the high/low negative pressure value selected by the user Low negative pressure value, adjust the on-off state of the first and second solenoid valves to introduce air from the outside until the pressure value fed back by the pressure sensor is equal to the high/low negative pressure value selected by the user, so as to realize the high/low negative pressure value Stable state, until the stable time of this state is over, switch to the next pressure state; and when the pressure value fed back by the pressure sensor is greater than the high/low negative pressure value selected by the user, adjust the on-off state of the first and second solenoid valves, The air in the drainage tube is extracted until the pressure value fed back by the pressure sensor is equal to the high/low negative pressure value selected by the user, so as to realize the stable state of high/low negative pressure value, and switch to the next pressure state until the stable time of this state is over.
此外，该控制方法还可以包括：通过节流阀调节引流管内的气体流速；和/或，通过中央处理器，根据用户输入的压力值和/或压力模式以及压力传感器反馈的压力值，控制阀组件的通断状态和/或节流状态。In addition, the control method may also include: adjusting the gas flow rate in the drainage tube through a throttle valve; and/or, through the central processing unit, controlling the valve according to the pressure value and/or pressure mode input by the user and the pressure value fed back by the pressure sensor. On-off state and/or throttle state of the component.
因此，本发明提供的负压引流治疗系统及其控制方法，通过采用本发明提供的负压引流调压装置的连续恒压模式和间断调压模式这两种工作模式，并且，采用阀组件(包括机械调压阀、第一和第二电磁阀等)与压力传感器的组合，利用半自动控制方式实现前述两种工作模式的切换，以便适应不同的医疗方案，有利于病人的康复。与此同时，本发明还提供了一种包括前述装置的负压引流治疗系统以及一种用于该系统的控制方法，其同样能够适应不同的医疗方案，有利于病人的康复。Therefore, the negative pressure drainage treatment system and its control method provided by the present invention adopt the continuous constant pressure mode and the intermittent pressure regulation mode of the negative pressure drainage pressure regulating device provided by the present invention, and adopt the valve assembly ( Combination of mechanical pressure regulating valve, first and second solenoid valves, etc.) and pressure sensor, using semi-automatic control mode to realize the switching of the aforementioned two working modes, so as to adapt to different medical schemes and benefit the recovery of patients. At the same time, the present invention also provides a negative pressure drainage treatment system including the aforementioned device and a control method for the system, which can also adapt to different medical schemes and is beneficial to the recovery of patients.
上述本发明的具体实施例仅例示性的说明了本发明的原理及其功效，而非用于限制本发明，熟知本领域的技术人员应明白，在不偏离本发明的精神和范围的情况下，对本发明所作的任何改变和改进都在本发明的范围内。本发明的权利保护范围，应如本申请的申请专利范围所界定的为准。The above-mentioned specific embodiments of the present invention only illustrate the principle of the present invention and its effects, but are not intended to limit the present invention. Those skilled in the art should understand that without departing from the spirit and scope of the present invention , any changes and improvements made to the present invention are within the scope of the present invention. The protection scope of the rights of the present invention shall prevail as defined in the scope of patent application of the present application.
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| CN111202873A (en) * | 2020-03-16 | 2020-05-29 | 西安赫特海斯电子科技有限公司 | Detachable negative pressure auxiliary drainage device and control method thereof |
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