WO2020073932A1 - 医用智能调压吸痰吸引负压治疗仪 - Google Patents

医用智能调压吸痰吸引负压治疗仪 Download PDF

Info

Publication number
WO2020073932A1
WO2020073932A1 PCT/CN2019/110245 CN2019110245W WO2020073932A1 WO 2020073932 A1 WO2020073932 A1 WO 2020073932A1 CN 2019110245 W CN2019110245 W CN 2019110245W WO 2020073932 A1 WO2020073932 A1 WO 2020073932A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
therapeutic apparatus
drainage
bottle
drainage bottle
Prior art date
Application number
PCT/CN2019/110245
Other languages
English (en)
French (fr)
Inventor
谭泓
Original Assignee
谭泓
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 谭泓 filed Critical 谭泓
Publication of WO2020073932A1 publication Critical patent/WO2020073932A1/zh

Links

Images

Classifications

    • A61M1/0023—
    • 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
    • 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
    • A61M2205/18—General characteristics of the apparatus with alarm
    • 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 belongs to the technical field of medical equipment, and particularly relates to a medical intelligent pressure regulating sputum suction negative suction therapeutic apparatus.
  • the negative pressure of the hospital is provided by the central negative pressure station, usually about 200-300mmHg, and is delivered to the wards of clinical departments. Each department uses a mechanically regulated negative pressure bottle to connect a suction tube or a negative pressure tube for patient treatment.
  • the negative pressure therapy instrument with mechanical pressure regulation has the following disadvantages: 1. Unstable pressure.
  • Mechanically regulated negative pressure therapy devices generally use the pipe aperture at the control switch to regulate negative pressure.
  • On the patient side such as a negative pressure dressing for closed negative pressure drainage treatment, when the pore size of the leak is constant, the negative pressure can be controlled more accurately.
  • the air leakage at the patient end is often not constant. For example, during the suction process, if the suction tube hole is adsorbed on the patient's organs after the operation, the drainage tube can be completely closed; when the wound is closed and the negative pressure drainage treatment patient has a very good dressing seal, it can also lead to a near-complete seal.
  • the mechanical adjustment device may cause the pressure at the patient end to reach or approach minus 200-300 mmHg.
  • the drainage hole or groove of the drainage tube is adsorbed to the patient's organs, such as the intestine or the wall of the large blood vessel, especially when these organs have surgical wounds or lesions, the pressure can cause intestinal perforation and blood vessel rupture, resulting in death Or serious problems. 3.
  • the workload of medical staff and family members of patients is heavy. When suctioning sputum for patients, it is necessary to adjust the suction pressure according to different patients, and the suction pressure is difficult to maintain accurately. In the treatment of wound negative pressure, in order to maintain an appropriate negative pressure, it is often necessary for medical staff to adjust the negative pressure frequently. If these tasks are handed over to the patient's family, the pressure of the patient's family will often increase, and the negative pressure cannot often be adjusted to an ideal state. 4.
  • the negative pressure therapy device with mechanical pressure regulation cannot provide effective negative pressure suction for wound drainage. Surgical wound drainage requires a low negative pressure, about -3 to -10mmHg to meet the requirements. However, the existing mechanical negative pressure regulating device cannot effectively and maintain this low negative pressure.
  • the use of disposable negative pressure drainage balls (such as the negative pressure suction balls produced by Suzhou New District BenQ Polymer Medical Device Co., Ltd.) often causes suction failure due to wound air leakage, resulting in wound effusion and infection.
  • the purpose of the present invention is to provide a medical intelligent pressure-regulating sputum suction negative-pressure therapeutic apparatus, which can completely solve the above-mentioned shortcomings of the prior art.
  • a medical intelligent pressure regulating sputum suction negative suction therapeutic apparatus includes a therapeutic apparatus body and a drainage bottle.
  • the therapeutic apparatus body is provided with a man-machine interactive interface, an embedded microcomputer system, an alarm device, an air intake control device, a pressure relief electromagnetic Valve, pressure sensor and liquid level sensor
  • the air intake device includes a stepper motor and a throttle valve
  • the human-machine interaction interface, alarm device, stepper motor, pressure relief solenoid valve, pressure sensor and liquid level sensor are all Embedded microcomputer system connection
  • the throttle valve is connected to the central negative pressure source or external negative pressure source provided by the hospital through the first trachea
  • the throttle valve is connected to the drainage bottle through the second trachea
  • the drainage bottle passes the pressure relief electromagnetic
  • the valve is communicated with the external atmospheric environment
  • the drainage bottle is connected with the body of the treatment instrument
  • a pressure sensor and a liquid level sensor are arranged at the connection between the drainage bottle and the body of the treatment instrument.
  • the human-computer interaction interface is a touch screen or a combination of an LCD screen and keys.
  • the drainage bottle is provided with a quick-release sealing structure.
  • the invention has a simple structure and a reasonable design, and can replace the mechanical negative pressure control device commonly used in hospitals at present, which can effectively maintain the pressure at the patient end and greatly reduce the work burden of medical staff and family members of patients.
  • the present invention can effectively prevent the patient end pressure from being too high.
  • the pressure is reduced to the set value through the pressure relief device solenoid valve II, thereby preventing tissue and organ damage caused by the excessive pressure.
  • Equipped with an alarm device which can alarm when pressure loss, excessive drainage, excessive drainage speed, tissue adsorption, can ensure the treatment effect (loss of pressure alarm), prevent major bleeding (drainage speed, excessive drainage alarm), and Prevent tissue damage (tissue adsorption alarm).
  • the present invention can stably maintain negative pressure in the pressure range of -3 to -10 mmHg, and can sustain wound drainage in a sustainable, effective and safe manner.
  • the present invention can store the basic information of the patient, and intelligently select the suction pressure according to the weight, and control the pressure through the air intake control device and the pressure relief valve to prevent the pressure caused by the suction tube from adsorbing the trachea and the damage of the tracheal mucosa.
  • Figure 1 is a structural block diagram of the present invention
  • Figure 3 is an exploded view of the quick release seal structure
  • FIG. 5 is a state diagram of the quick release seal structure when it is tightened.
  • a medical intelligent pressure regulating sputum suction negative suction therapeutic apparatus includes a therapeutic apparatus body and a drainage bottle 8, the therapeutic apparatus body includes a human-computer interaction interface 1, an embedded microcomputer system 2, an alarm device 3.
  • the air intake device includes a stepping motor 4 and a throttle valve 5 connected to each other, a human-computer interface 1, an alarm device 3, a stepping motor 4, a pressure relief solenoid valve 6, a pressure sensor 7 and a liquid level sensor 9 are all embedded
  • the microcomputer system 2 is connected.
  • the throttle valve 5 is connected to the central negative pressure source or external negative pressure source provided by the hospital through the first trachea.
  • the throttle valve 5 is connected to the drain bottle 8 through the second trachea.
  • the drain bottle 8 passes through the pressure relief solenoid valve. 6
  • the drainage bottle 8 is connected to the body of the treatment device, and a pressure sensor 7 and a liquid level sensor 9 are installed at the connection between the drainage bottle 8 and the body of the treatment device.
  • the model of the human-computer interaction interface 1 is a serial capacitive touch screen produced by dacai Technology Co., Ltd.
  • the embedded microcomputer system 2 is a Mitsubishi FX2N PLC controller
  • the alarm device 3 is a small electronic buzzer FMQ- 2724
  • stepper motor 4 model is TELESKY brand 42BYGH34
  • throttle valve 5 model is Delixi one-way throttle valve RE02
  • pressure relief solenoid valve 6 model is 0520D solenoid valve produced by Foshan Weilizi Electronic Technology Company
  • pressure sensor 7 is The accuracy of the pressure sensor produced by Beijing Aosheng Automation Technology is -0.7mmHg
  • the model of the liquid level sensor 9 is NU200F18TR produced by Jinci Technology with an accuracy of 0.1mm.
  • the intelligent control of the invention can realize the following unique functions:
  • the embedded microcomputer system PLC in this preferred example
  • PLC will automatically select the suction pressure of -200mmHg (PLC will maintain the suction pressure between -190 and -210mmHg).
  • the pressure sensor senses the pressure in the drainage bottle, and it is transferred to the PLC.
  • the PLC controls the stepper motor to open the throttle valve.
  • the stepper motor Continue to open the throttle valve; when the pressure in the drainage bottle is between -190 and -210mmHg, the throttle valve maintains the current position; when the pressure is lower than -210mmHg, the stepper motor gradually closes the throttle valve. If the pressure is lower than -220mmHg, the PLC controls the pressure relief solenoid valve to open for pressure relief. When the pressure relief reaches 210mmHg, the PLC control solenoid valve II closes.
  • Surgical wound drainage function solenoid valve I (normally closed, connecting the drainage bottle and negative pressure source, used to generate negative pressure in the drainage 4 flow bottle) and solenoid valve II (normally closed, connecting the drainage bottle and outside air, use In order to relieve the negative pressure in the bottle).
  • the pressure sensor monitors the negative pressure in the bottle. Under the control of a microcomputer (PLC or industrial control board, etc.), a specific negative pressure is generated in the drainage bottle through two solenoid valves.
  • the pressure of wound drainage can be set as needed, generally -3 to -10mmHg.
  • PLC In wound drainage mode, set the negative pressure of wound drainage to -5mmHg, PLC will control the negative pressure of drainage to -3mmHg to -7mmHg.
  • the pressure sensor senses the negative pressure in the drainage bottle. If it is lower than -7mmHg, the pressure relief solenoid valve opens to relieve the pressure, and closes when it is -7mmHg; if the negative pressure in the drainage bottle is higher than -3mmHg, the stepper motor controls throttling The valve opens a large air flow and maintains the throttle position until -5mmHg.
  • Suction hole suction tissue alarm function if the negative pressure value is maintained well and the stepper motor and throttle valve do not work for more than 30 minutes and / or the drainage volume is less than 1/3 of the expected drainage volume of the wound within 60 minutes, the treatment device Alarm, indicating that the suction hole is adsorbed on the tissues and organs, which may cause damage to the organs or tissues for a long time.
  • the amount of fluid leakage and bleeding per square centimeter of head, neck and neck wounds is 1-5ml / 24 hours; the amount of fluid leakage and bleeding per square centimeter of trunk and limb wounds is 0.4-3ml / 24 hours. If the drainage tube absorbs tissue, the drainage flow in the drainage bottle will not change. 2. After the surgical wound is closed, the wound is in the inflammatory stage within 48 hours after the operation, and the wound cannot be completely closed and cannot be completely sealed from the outside world. If during this time, the pressure in the drainage bottle remains unchanged for a long time and the solenoid valve does not work, it means that the drainage tube adsorbs tissue.
  • the surgical wound drainage mode In the surgical wound drainage mode, enter the patient's operation end time and enter the patient's wound area, whether the wound belongs to the head, face, neck or trunk limbs; press the start suction button.
  • the PLC detects the pressure and drainage volume in the drainage bottle through the pressure sensor and the liquid level sensor. If the patient's surgical wound has undergone neck lymph node dissection on the head, face and neck, the wound area is about 150 cm 2 , and the pressure of the drainage bottle continues to be maintained at -4 to -6 mmHg for 30 minutes after 16 hours of surgery and the solenoid valve does not work.
  • the drainage volume is less than 1ml within 6 hours (should be within 6-30ml), and the treatment device will alarm.
  • Pressure loss alarm set the pressure value and duration of the pressure loss alarm on the settings page, for example, the treatment negative pressure is set to -120mmHg, the pressure loss is -20mmHg (the stepper motor controls the throttle valve to the maximum, and it is still 20mmHg higher than the set value)
  • the pressure loss time is 15 minutes. That is, the patient's negative pressure can only reach -100mmHg or less, and the duration exceeds 15 minutes, the PLC will alarm through the alarm device.
  • Drainage flow and drainage speed alarm On the setting page, you can set the value of the drainage flow alarm and the value of the drainage speed alarm. For example, the drainage flow alarm value is set at 600ml, and the drainage speed alarm is set at 300ml / h.
  • the PLC starts to calculate the drainage or negative pressure treatment time. The PLC detects the drainage volume in the drainage bottle through the liquid level sensor and divides the drainage volume by the time to calculate the drainage speed. When the drainage volume exceeds 600ml or the drainage speed exceeds 300ml / h, an alarm will be given.
  • Curve function The curve function button is set on the touch screen. When clicked, the real-time negative pressure, drainage volume and drainage time will be converted into "curve graph display mode". According to the curve of real-time negative pressure value with time, the effectiveness of negative pressure treatment can be judged; according to the curve of drainage flow rate and drainage speed and time change, whether there is bleeding in the surgical wound and whether it is delayed bleeding.
  • a medical intelligent pressure regulating suction suction suction therapeutic apparatus includes a therapeutic apparatus body and a drainage bottle 8, the therapeutic apparatus body includes a human-computer interaction interface 1, an embedded microcomputer system 2, an alarm device 3.
  • the air intake device includes a stepping motor 4 and a throttle valve 5 connected to each other, a human-computer interface 1, an alarm device 3, a stepping motor 4, a pressure relief solenoid valve 6, a pressure sensor 7 and a liquid level sensor 9 are all embedded
  • the microcomputer system 2 is electrically connected.
  • the ball valve 5 is connected to the central negative pressure source or external negative pressure source provided by the hospital through the first trachea.
  • the ball valve 5 is connected to the drain bottle 8 through the second trachea.
  • the drain bottle 8 is connected to the drain solenoid valve 6
  • the external atmospheric environment is connected, and the drainage bottle 8 is connected to the body of the therapeutic apparatus.
  • a pressure sensor 7 and a liquid level sensor 9 are installed at the connection between the drainage bottle 8 and the body of the therapeutic apparatus.
  • the drain bottle 8 is provided with a quick-release sealing structure.
  • the drain bottle 8 includes a bottle cap and a bottle body 805.
  • the bottle cap includes a top cover 801, a sealing ring 802, and a cap integrally formed with the top cover 801
  • the eaves 803; the inner side of the cover eaves 803 is provided with a fixing piece 804, and a locking piece 806 is integrally formed on the outer surface of the bottle body 805 near the bottle mouth.
  • the working principle of the quick-release sealing structure As shown in FIG.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

一种医用智能调压吸痰吸引负压治疗仪，包括治疗仪本体和引流瓶（8），治疗仪本体内设置有人机交互界面（1）、报警装置（3）、进气控制装置、泄压电磁阀（6）、压力传感器（7）、液位传感器（9）以及嵌入式微电脑系统（2）；人机交互界面（1）、报警装置（3）、进气控制装置、泄压电磁阀（6）、压力传感器（7）、液位传感器（9）均与嵌入式微电脑系统（2）连接，治疗仪需连接医院负压源；进气控制装置通过导管分别连接负压源和引流瓶（8），引流瓶（8）通过泄压电磁阀（6）与外界大气环境相通，引流瓶（8）与治疗仪本体连接处设置有压力传感器（7）和液位传感器（9）。该治疗仪结构简单，吸痰时可根据患者体重智能选择吸痰压力，吸引治疗时可维持患者端压力，并设置有组织吸附报警、失压报警、引流量及引流速度报警装置（3），使用安全。

Description

医用智能调压吸痰吸引负压治疗仪 技术领域
本发明属于医疗设备技术领域，特别是涉及一种医用智能调压吸痰吸引负压治疗仪。
背景技术
医疗工作中，很多患者需要吸引。比如吸痰、外科手术后的伤口引流、急慢性创面/感染创面的负压治疗等。医院的负压由中心负压站提供，一般在200-300mmHg左右，输送给各临床科室病房。各科室实用机械调压的负压瓶连接吸痰管或者负压管，为患者进行处置。
机械调压的负压治疗仪具有如下缺点：1.压力不稳定。机械调压的负压治疗仪一般采用控制开关处的管道孔径，调控负压。在患者端，比如封闭负压引流治疗的负压敷料，漏气的孔径恒定时，可以较准确的控制负压。但实际应用过程中，患者端的漏气时常不恒定。如吸引过程中，若术后吸引管的孔吸附在患者器官上后，可以完全封闭引流管；创面封闭负压引流治疗患者若敷料密封非常好的时候，也可以导致近乎完全的密封。此时，机械负压调节装置即使孔径非常小，也会导致患者端的负压等于或者接近中心负压源的负压，即-300mmHg左右。压力不稳定会直接影响患者的治疗或者预后。2.不安全。正如前面提及的，机械调节装置，可能会导致患者端的压力达到或者接近负200-300mmHg。在引流管的引流孔或者槽吸附到患者器官时，如肠道或者大血管的管壁时，特别是在这些器官有手术伤口或者病变时，压力可以导致肠道穿孔，血管破裂，导致患者死亡或者严重问题。3.医护人员和患者家属的工作量大。如为患者吸痰时，需要根据不同患者调整吸痰压力，且吸痰压力很难准确维持。在创面负压 治疗时，为了维持适当的负压，常常需要医护人员经常调整负压。如果将这些工作交给患者家属，常导致患者家属压力增加，且常不能将负压调控至理想状态。4.机械调压的负压治疗仪不能为伤口引流提供有效的负压吸引。手术伤口引流需要低负压，约-3至-10mmHg即可满足要求。但现有的机械负压调控装置无法有效和维持这种低负压。使用一次性负压引流球(如苏州新区明基高分子医疗器械有限公司生产的负压吸引球)常因伤口漏气导致吸引失效，致伤口积液及感染的发生。
因此，如何解决上述问题成为本领域人员研究的重点。
发明内容
本发明的目的就是提供一种医用智能调压吸痰吸引负压治疗仪，能完全解决上述现有技术的不足之处。
本发明的目的通过下述技术方案来实现：
一种医用智能调压吸痰吸引负压治疗仪，包括治疗仪本体和引流瓶，所述治疗仪本体内设置有人机交互界面、嵌入式微电脑系统、报警装置、进气控制装置、泄压电磁阀、压力传感器和液位传感器，所述进气装置包括步进电机和节流阀，所述人机交互界面、报警装置、步进电机、泄压电磁阀、压力传感器和液位传感器均与嵌入式微电脑系统连接，所述节流阀通过第一气管与院提供的中心负压源或外接负压源连接，节流阀通过第二气管与引流瓶连接，所述引流瓶通过泄压电磁阀与外界大气环境相通，所述引流瓶与治疗仪本体连接，引流瓶与治疗仪本体连接处设置有压力传感器和液位传感器。
作为优选，所述人机交互界面为触摸屏或者为液晶屏与按键组合。
作为优选，所述引流瓶上设置有快拆密封结构。
与现有技术相比，本发明的有益效果在于：
1.本发明结构简单，设计合理，可以替代目前医院常用的机械负压控制装置，可有效维持患者端压力，大大减轻医护人员及患者家属的工作负担。
2.本发明可有效防止患者端压力过高，患者端压力过高时通过泄压装置电磁阀II，将压力降至设定值，从而防止压力过高引起的组织器官损伤。
3.设有报警装置，在失压、引流量过大、引流速度过快、组织吸附时报警，可以保证治疗效果(失压报警)，防止大出血(引流速度、引流量过大报警)，并防止组织损伤(组织吸附报警)。
4.本发明可以在-3至-10mmHg压力范围，稳定维持负压，可持续、有效、安全维持伤口引流。
5.本发明可存储患者基本信息，并根据体重智能选择吸痰压力，并通过进气控制装置和泄压阀控制压力，防止吸痰管吸附气管后导致的压力过高及气管粘膜损伤问题。
附图说明
图1是本发明的结构框图；
图2是本发明的电路连接原理图；
图3是快拆密封结构的分解图；
图4是快拆密封结构旋松时的状态图；
图5是快拆密封结构旋紧时的状态图。
附图标记：1-人机交互界面，2-嵌入式微电脑系统，3-报警装置，4-步进电机，5-节流阀，6-泄压电磁阀，7-压力传感器，8-引流瓶，9-液位传感器，801-顶盖，802-密封圈，803-盖檐，804-固定件，805-瓶身，806-锁扣件，807-瓶口上缘。
具体实施方式
下面结合具体实施例和附图对本发明作进一步的说明。
实施例一
如图1至图2所示，一种医用智能调压吸痰吸引负压治疗仪，包括治疗仪本体和引流瓶8，治疗仪本体包括人机交互界面1、嵌入式微电脑系统2、报警装置3、进气控制装置、泄压电磁阀6、压力传感器7、液位传感器9、引流瓶8。进气装置包括相互连接的步进电机4和节流阀5，人机交互界面1、报警装置3、步进电机4、泄压电磁阀6、压力传感器7和液位传感器9均与嵌入式微电脑系统2连接，节流阀5通过第一气管与院提供的中心负压源或外接负压源连接，节流阀5通过第二气管与引流瓶8连接，引流瓶8通过泄压电磁阀6与外界大气环境相通，引流瓶8治疗仪本体连接，引流瓶8与治疗仪本体连接处安装有压力传感器7和液位传感器9。
本实施例中，人机交互界面1型号为大彩科技公司生产的串口电容触摸屏，嵌入式微电脑系统2为三菱FX2N PLC控制器，报警装置3为全业电器生产的小型电子蜂鸣器FMQ-2724，步进电机4型号为TELESKY牌42BYGH34，节流阀5型号为德力西单向节流阀RE02，泄压电磁阀6型号为佛山威力兹电子科技公司生产的0520D电磁阀，压力传感器7为北京奥升自动化科技生产的压力传感器精度-0.7mmHg，液位传感器9型号为金瓷科技生产的NU200F18TR精度0.1mm。
本发明智能化控制，能够实现以下独有功能：
1.吸痰功能：在运行页面的设置页面，根据体重区间，可以设置吸痰负压值；按屏幕吸痰按钮，步进电机4控制节流阀5接通负压，负压源接通引流瓶；通过压力传感器，当负压低于相应体重区间负压设置值5mmHg时，步进电机4控制节流阀5减少气体流动，当负压值比设置值高5mmHg时，步进电机4控制节流阀5增加气体流动。通过液位传感器，当引流瓶内的液体量超过设定值时， 蜂鸣器报警；报警声音可以通过静音按键暂时关闭5分钟，但吸痰功能不受影响。
比如设置60kg以上吸痰压力-200mmHg，40-60kg吸痰压力-160mmHg，10-40kg吸痰压力-120mmHg，小于10kg吸痰压力-80mmHg。若病人为65kg成人，输入患者体重信息后，嵌入式微电脑系统(本优选实例为PLC)会自动选择吸痰压力为-200mmHg(PLC将维持吸痰压力在-190至-210mmHg之间)。压力感受器感受引流瓶内压力，传入PLC，PLC控制步进电机打开节流阀，在吸痰过程中引流瓶内压力高于-200mmHg(以设定值-200mmHg为例)时，步进电机持续打开节流阀；在引流瓶内压力在-190至-210mmHg之间时，节流阀维持当前位置；在压力低于-210mmHg时，步进电机逐渐关闭节流阀。若压力低于-220mmHg，PLC控制泄压电磁阀打开进行泄压，泄压至210mmHg时PLC控制电磁阀II关闭。
2.手术伤口引流功能：电磁阀I(常闭，连通引流瓶和负压源，用于在引4流瓶内产生负压)和电磁阀II(常闭，连通引流瓶和外界空气，用于将瓶内负压泄压)。压力传感器监测瓶内负压值，在微电脑(PLC或者工控板等)控制下，通过两个电磁阀，在引流瓶内产生特定负压。可以根据需要，设置伤口引流的压力大小，一般-3至-10mmHg。
在伤口引流模式下，设置伤口引流负压为-5mmHg，PLC将控制引流负压在-3mmHg到-7mmHg。压力传感器感受引流瓶内负压，若低于-7mmHg时，泄压电磁阀打开，进行泄压，至-7mmHg时关闭；若引流瓶内负压高于-3mmHg时，步进电机控制节流阀开大气流，至-5mmHg时维持节流阀位置。
3.吸引孔吸附组织报警功能：如果负压值维持良好且步进电机及节流阀不工作时间超过30分钟和或引流量在60分钟内低于伤口预计引流量的1/3，治疗仪报警，提示吸引孔吸附到组织器官上，长时间易造成器官或组织损伤。
原理：1.头面颈部伤口每平方厘米液体渗出和出血量1-5ml/24小时；躯干四肢伤口每平方厘米液体渗出和出血量0.4-3ml/24小时。若引流管吸附组织，引流瓶内的引流量将不会改变。2.手术伤口封闭后在术后的48小时内，伤口处于炎症期，伤口不能完全封闭，与外界不能完全密封。若在此时间内，引流瓶内的压力长时间维持不变且电磁阀不工作，则说明引流管吸附组织。
在手术伤口引流模式下，输入患者手术结束时间并输入患者伤口面积，伤口属于头面颈部还是躯干四肢；按开始吸引键。PLC通过压力传感器和液位传感器检测引流瓶内的压力和引流量。若患者手术伤口在头面颈部进行了颈淋巴结清扫手术，伤口面积约150cm 2，在术后16小时引流瓶压力持续维持在-4到-6mmHg之间30分钟而电磁阀没有工作，在近1小时内引流量小于1ml(应该在6-30ml)，治疗仪报警。
4.失压、引流量过大、引流速度过快报警功能：通过压力传感器、液位传感器，经过PLC，在失压、引流量过大和引流速度过快时报警。
失压报警：在设置页面设置失压报警压力值和持续时间，比如治疗负压设置为-120mmHg，失压-20mmHg(步进电机控制节流阀开到最大，仍然比设置值高20mmHg)，失压时间15分钟。即患者负压只能达到-100mmHg或以下之间，且持续时间超过了15分钟，PLC就会通过报警装置报警。
引流量和引流速度报警：在设置页面可以设置引流量报警的值和引流速度报警的值。比如引流量报警值设在600ml，引流速度报警设置在300ml/h。按开始按钮时，PLC开始计算引流或者负压治疗时间，PLC通过液位传感器检测引流瓶内的引流量，并用引流量除以时间计算引流速度。在引流量超过600ml或者引流速度超过300ml/h时，报警。
5.曲线功能：触摸屏上设置曲线功能按钮，点击时实时负压、引流量和引 流时间会转换成“曲线图显示模式”。根据实时负压值随时间变化的曲线，可以判断负压治疗的有效性；根据引流量及引流速度与时间变化的曲线，可以提式手术伤口内是否有出血及是否为迟发性的出血。
实施例二
如图1至图5所示，一种医用智能调压吸痰吸引负压治疗仪，包括治疗仪本体和引流瓶8，治疗仪本体包括人机交互界面1、嵌入式微电脑系统2、报警装置3、进气控制装置、泄压电磁阀6、压力传感器7、液位传感器9、引流瓶8。进气装置包括相互连接的步进电机4和节流阀5，人机交互界面1、报警装置3、步进电机4、泄压电磁阀6、压力传感器7和液位传感器9均与嵌入式微电脑系统2电性连接，球阀5通过第一气管与院提供的中心负压源或外接负压源连接，球阀5通过第二气管与引流瓶8连接，引流瓶8通过泄压电磁阀6与外界大气环境相通，引流瓶8与治疗仪本体连接，引流瓶8与治疗仪本体连接处安装有压力传感器7和液位传感器9。
本实施例中，引流瓶8上设置有快拆密封结构，具体的，引流瓶8包括瓶盖和瓶身805，瓶盖包括顶盖801、密封圈802、以及与顶盖801一体成型的盖檐803；盖檐803的内侧有固定件804，瓶身805外表面靠近瓶口处一体成型有锁扣件806。该快拆密封结构的工作原理：如图3所示，在瓶盖未旋紧瓶身805时，锁扣件806位于固定件804的一侧，引流瓶瓶口上缘807与密封圈802接触，但密封圈802没有被压缩；瓶盖旋紧瓶身805，锁扣件806旋转到固定件804的上方，引流瓶口上缘807压缩密封圈802，达到密封的效果。此设计方便治疗仪本体与引流瓶8之间的安装拆卸。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明 的保护范围之内。

Claims (3)

  1. 一种医用智能调压吸痰吸引负压治疗仪，其特征在于：包括治疗仪本体和引流瓶(8)，所述治疗仪本体内设置有人机交互界面(1)、嵌入式微电脑系统(2)、报警装置(3)、进气控制装置、泄压电磁阀(6)、压力传感器(7)和液位传感器(9)，所述进气装置包括步进电机(4)和节流阀(5)，所述人机交互界面(1)、报警装置(3)、步进电机(4)、泄压电磁阀(6)、压力传感器(7)和液位传感器(9)均与嵌入式微电脑系统(2)连接，所述节流阀(5)通过第一气管与院提供的中心负压源或外接负压源连接，节流阀(5)通过第二气管与引流瓶(8)连接，所述引流瓶(8)通过泄压电磁阀(6)与外界大气环境相通，所述引流瓶(8)与治疗仪本体连接，引流瓶(8)与治疗仪本体连接处设置有压力传感器(7)和液位传感器(9)。
  2. 根据权利要求1所述的一种医用智能调压吸痰吸引负压治疗仪，其特征在于：所述人机交互界面(1)为触摸屏或者为液晶屏与按键组合。
  3. 根据权利要求1所述的一种医用智能调压吸痰吸引负压治疗仪，其特征在于：所述引流瓶(8)上设置有快拆密封结构。
PCT/CN2019/110245 2018-10-12 2019-10-10 医用智能调压吸痰吸引负压治疗仪 WO2020073932A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811187582.3 2018-10-12
CN201811187582.3A CN109172888A (zh) 2018-10-12 2018-10-12 医用智能调压吸痰吸引负压治疗仪

Publications (1)

Publication Number Publication Date
WO2020073932A1 true WO2020073932A1 (zh) 2020-04-16

Family

ID=64948188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/110245 WO2020073932A1 (zh) 2018-10-12 2019-10-10 医用智能调压吸痰吸引负压治疗仪

Country Status (2)

Country Link
CN (1) CN109172888A (zh)
WO (1) WO2020073932A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023018401A1 (en) * 2021-08-12 2023-02-16 Vascuthera Medi̇kal Arge Ltd. Şti̇. A programmable automatic drainage aspiration system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109172888A (zh) * 2018-10-12 2019-01-11 谭泓 医用智能调压吸痰吸引负压治疗仪
CN109602995A (zh) * 2019-01-22 2019-04-12 天津市第三中心医院 新生儿防缺氧吸痰管
CN111265726A (zh) * 2020-01-16 2020-06-12 上海理工大学 一种引流液测量装置及方法
CN111529764A (zh) * 2020-04-14 2020-08-14 薛超 一种持续负压引流机
CN111420142A (zh) * 2020-04-30 2020-07-17 厦门中翎易优创科技有限公司 一种复合压力治疗仪及其使用方法
CN113440222B (zh) * 2021-07-13 2023-07-11 上海埃尔顿医疗器械有限公司 应用于外科器械的负压吸附机构及负压系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102274573A (zh) * 2011-05-17 2011-12-14 北京航空航天大学 基于微处理器内核的双负压调节式伤口负压治疗仪
CN105592868A (zh) * 2013-03-15 2016-05-18 埃特瑞姆医疗公司 流体分析仪和相关联方法
US20180071441A1 (en) * 2009-03-13 2018-03-15 Atrium Medical Corporation Chest drainage systems and methods
CN108211022A (zh) * 2018-01-17 2018-06-29 绵阳美科电子设备有限责任公司 一种自动排痰机及其工作方法
CN109172888A (zh) * 2018-10-12 2019-01-11 谭泓 医用智能调压吸痰吸引负压治疗仪
CN209270426U (zh) * 2018-10-12 2019-08-20 谭泓 医用智能调压吸痰吸引负压治疗仪

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180071441A1 (en) * 2009-03-13 2018-03-15 Atrium Medical Corporation Chest drainage systems and methods
CN102274573A (zh) * 2011-05-17 2011-12-14 北京航空航天大学 基于微处理器内核的双负压调节式伤口负压治疗仪
CN105592868A (zh) * 2013-03-15 2016-05-18 埃特瑞姆医疗公司 流体分析仪和相关联方法
CN108211022A (zh) * 2018-01-17 2018-06-29 绵阳美科电子设备有限责任公司 一种自动排痰机及其工作方法
CN109172888A (zh) * 2018-10-12 2019-01-11 谭泓 医用智能调压吸痰吸引负压治疗仪
CN209270426U (zh) * 2018-10-12 2019-08-20 谭泓 医用智能调压吸痰吸引负压治疗仪

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023018401A1 (en) * 2021-08-12 2023-02-16 Vascuthera Medi̇kal Arge Ltd. Şti̇. A programmable automatic drainage aspiration system

Also Published As

Publication number Publication date
CN109172888A (zh) 2019-01-11

Similar Documents

Publication Publication Date Title
WO2020073932A1 (zh) 医用智能调压吸痰吸引负压治疗仪
US20050222528A1 (en) Reduced pressure wound cupping treatment system
US10105471B2 (en) Reduced pressure treatment system
WO2012016352A1 (zh) 一种湿化瓶及带有该湿化瓶的氧气吸入器
CN107335118B (zh) 一种呼吸机
CN209270426U (zh) 医用智能调压吸痰吸引负压治疗仪
CN103961789A (zh) 一种基于中央负压的辅助愈合治疗系统
CN209005005U (zh) 气管导管气囊压力动态监测自动调控仪
CN211611268U (zh) 一种医用壁挂自动稳压负压吸引器
CN208287277U (zh) 一种闭环压力调节系统
CN205494599U (zh) 气管切开患者的增湿呼吸护理装置
CN208511671U (zh) 一种具有注药通路的可持续气道湿化的氧气雾化吸入器
CN214343826U (zh) 内科临床用呼吸装置
CN201439008U (zh) 便携式手动负压引流器
CN213100173U (zh) 一种气管切开患者多功能说话瓣膜
CN212439349U (zh) 一种集成负压氧疗及灌洗功能的多模式伤口治疗设备
CN203710511U (zh) 气管套管装置
CN221672830U (zh) 一种应用于医疗设备带的自稳式负压吸引装置
CN221845733U (zh) 一种带湿化功能的气管切开套管
CN203935492U (zh) 一种气道湿化装置
CN205460057U (zh) 一种呼吸内科专用的吸痰器
CN214129694U (zh) 一种儿科护理可视吸痰器
CN209451094U (zh) 气管切开套管与密闭式吸痰管连接结构
CN112915342B (zh) 一种封堵辅助装置、气管插管及气管封堵方法
CN217960914U (zh) 一种具有气道湿化功能的气切面罩

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19871307

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19871307

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19871307

Country of ref document: EP

Kind code of ref document: A1