WO2020029469A1 - 一种用于icu根据气流自主呼吸的便携式雾化装置 - Google Patents

一种用于icu根据气流自主呼吸的便携式雾化装置 Download PDF

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Publication number
WO2020029469A1
WO2020029469A1 PCT/CN2018/116509 CN2018116509W WO2020029469A1 WO 2020029469 A1 WO2020029469 A1 WO 2020029469A1 CN 2018116509 W CN2018116509 W CN 2018116509W WO 2020029469 A1 WO2020029469 A1 WO 2020029469A1
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Prior art keywords
atomization
atomizing
circuit board
icu
autonomously
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PCT/CN2018/116509
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English (en)
French (fr)
Inventor
华健
宋雪峰
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华健
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=69414478&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2020029469(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CN201810892265.5A external-priority patent/CN110812636A/zh
Priority claimed from CN201821265331.8U external-priority patent/CN209529846U/zh
Application filed by 华健 filed Critical 华健
Priority to ES18929355T priority Critical patent/ES2924887T3/es
Priority to PL18929355.8T priority patent/PL3756710T3/pl
Priority to EP18929355.8A priority patent/EP3756710B1/en
Priority to US15/733,521 priority patent/US11865257B2/en
Publication of WO2020029469A1 publication Critical patent/WO2020029469A1/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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/147—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase the respiratory gas not passing through the liquid container
    • A—HUMAN NECESSITIES
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    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
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    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0024—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with an on-off output signal, e.g. from a switch
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    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
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    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0468—Liquids non-physiological
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • 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
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • 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
    • A61M2209/00—Ancillary equipment
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    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/082—Mounting brackets, arm supports for equipment

Definitions

  • the invention relates to the field of medical equipment, in particular to a portable atomizing device for ICU to autonomously breathe according to airflow.
  • ventilator As a means to replace artificial voluntary ventilation, has been widely used in various causes of respiratory failure, anesthesia and respiratory management during major surgery, respiratory support treatment and emergency resuscitation.
  • the ventilator occupies a very important place in the field of modern medicine, especially in the ICU ward.
  • the ventilator has the function of providing power to transport gas, which can replace the work of the human respiratory muscles, and can generate a certain breathing rhythm, including breathing frequency and breathing ratio; In addition, it can also replace the function of the human respiratory central nerve to control the breathing rhythm.
  • VT tidal volume
  • MV minute ventilation
  • the gas supplied by the ventilator is preferably heated and humidified to replace the nasal function of the human body, and can supply higher than the amount of O 2 contained in the atmosphere to increase the concentration of inhaled O 2 and improve oxygenation.
  • Ventilator treatment using aerosolized inhalation is an important and effective treatment method for the treatment of respiratory diseases, which is to use a nebulizer to atomize the liquid medicine into tiny particles, and then the user inhales the medicine into the respiratory tract and lungs through breathing The skin is deposited and absorbed through its mucous membrane, so as to achieve the goal of painless, rapid and effective treatment. Therefore, it is very important for a patient to use an atomizing treatment device that can be effectively used with a ventilator.
  • the existing nebulizer device used in combination with the ventilator has the disadvantage that it cannot actively judge the breathing frequency of the ventilator.
  • the nebulizer device usually sprays according to the same frequency as the set breathing frequency of the ventilator.
  • the operation requirements of the user are high, and the problem that the atomization frequency and the breathing frequency are not synchronized is prone to occur, which is very dangerous for the patient.
  • an object of the present invention is to provide a portable atomizing device for actively detecting the breathing state of the ventilator and matching the breathing frequency, and for simple and convenient operation for the ICU to autonomously breathe according to airflow.
  • the present invention provides a portable atomization device for ICU to autonomously breathe according to airflow, which includes an atomization control host and an atomization generator provided on the atomization control host, and when atomization occurs A tee connecting pipe is provided on the device.
  • the atomization generator includes a bottom case, a medicinal solution tank separated from the bottom case space on the bottom case, a medicinal solution outlet on the bottom of the medicinal solution tank, and a bottom case on the same side of the medicinal solution outlet.
  • the atomizing sheet and a first circuit board connected with the atomizing sheet are provided in the bottom case.
  • the baffle in the nozzle tube divides the inside of the nozzle tube into an atomizing cavity that communicates with the outlet of the medicinal solution, and an air cavity that communicates with the air guiding port.
  • the air cavity is provided with a sensor connected to the first circuit board.
  • the nozzle tube on one side of the air cavity is provided with a cross-section stopper for blocking the opening of the air cavity, and a first air vent and a second air vent connected to the air cavity are respectively provided on both sides of the cross-sectional stopper.
  • the first circuit board extends to the outside of the bottom case and is connected to the atomization generator.
  • the atomizing cavity and the air cavity are independent of each other.
  • the air cavity is used to detect the working airflow state of the ventilator without affecting the atomization, and the airflow detection and the atomizing spray are not interfered with each other.
  • the atomization control host includes a casing, a second circuit board provided in the casing, and a button and an indicator light connected to the second circuit board on the casing.
  • the second circuit board includes a main control unit, a power supply circuit connected to the main control unit, and an atomization drive unit and a battery connected to the power supply circuit, respectively.
  • the keys and indicators are connected to the main control unit respectively.
  • Four metal contacts are sequentially arranged on the second circuit board, which are the detection point A connected to the main control unit, the circuit negative B and the atomized positive C respectively connected to the atomization driving unit, and the power source positive electrode connected to the battery. D.
  • the detection point A is connected to the sensor and the main control unit, respectively, for collecting the signal output of the sensor;
  • the circuit negative electrode B is connected to the atomization driving unit, the atomization sheet and the sensor, respectively, and is used for the sensor and the atomization sheet to share the circuit negative electrode.
  • the atomization positive electrode C is connected with the atomization driving unit and the atomization sheet, respectively, to provide the AC voltage required for the operation of the atomization sheet;
  • the power supply positive electrode D is respectively connected with the power supply circuit and the sensor, and is used to provide the direct current required by the sensor. Voltage.
  • four metal contacts are sequentially arranged on the first circuit board, which are a first contact that is in conduction with the detection point A, a second contact that is in conduction with the circuit negative electrode B, and an atomized positive electrode.
  • the first contact is connected to the sensor, the second contact is connected to the sensor and the atomizing sheet, the third contact is connected to the atomizing sheet, and the fourth contact is connected to the sensor.
  • the main control unit is electrically connected to the sensor, and the atomization driving unit is connected to the atomization sheet.
  • an interface is provided on the housing corresponding to the positions of the four metal contacts to facilitate conduction of the first circuit board with the metal contacts of the second circuit board after insertion.
  • the power supply circuit includes a DC-AC conversion circuit and a booster circuit; the atomizing sheet and the sensor respectively use an AC voltage and a DC voltage.
  • the power supply circuit may further include a charging circuit and a power supply switching circuit, and the battery is charged, and is switched to external power supply when an external AC voltage is connected.
  • a fixture is provided on the atomization control host to fix the atomization control host on the bed fence or the table.
  • the clamp includes a base, an upside-down buckle provided with a fixed atomization control host on the base, and a fence or a movable clamp near the table on the base.
  • the left and right ends of the tee connection pipe are respectively connected with the external pipe of the ventilator and the connection pipe of the mask.
  • the above connection method can adopt interference connection, which makes the connection structure simpler.
  • the diameters of the left and right ends of the tee connection tube are different to distinguish different ports connecting the ventilator and the mask. It is also possible to connect the ventilator with a larger diameter on the left and right ports of the three-way connecting tube and connect a mask with a smaller diameter.
  • the tee connection tube is connected to the nozzle tube. Therefore, the middle port of the three-way connection pipe is connected to the atomization generator, and the connection method can also adopt an interference connection.
  • the bottom of the medicinal solution tank is provided with an inclined bottom surface, and the medicinal solution tank is provided with an upper cover.
  • the beneficial effect of the invention is that it has the effects of actively detecting the breathing state of the ventilator and matching the breathing frequency, and the operation is simple and convenient. Because the left and right ends of the three-way connecting pipe are respectively connected with the external pipe of the ventilator and the connecting pipe of the mask, the middle pipe is in communication with the atomizing generator. The user can ventilate into the duct, and when the ventilator is working, the internal air flow changes are detected and judged by the sensor in the air cavity, and then the breathing state of the ventilator is obtained.
  • the first circuit board sends a signal to the atomization control host, and then the atomization control host drives the atomization drive unit to atomize the liquid in the nozzle tube of the atomization tablet.
  • Drug administration not only achieves the purpose of combining respiratory therapy with nebulization therapy, but also has a better therapeutic effect on the disease, and avoids the defects of unsynchronization of nebulization and breathing.
  • the user's operation requirements are low, which has simple and convenient effects.
  • the atomization generator and the atomization control host and their connecting lines can be disassembled and connected, which is convenient for cleaning and replacing components such as the atomization generator, and the product can be disassembled, convenient to carry, and realizes convenient use. effect.
  • FIG. 1 is a schematic structural diagram of the present invention
  • FIG. 2 is a schematic structural diagram of a combination of a tee connecting pipe and an atomizing generator
  • FIG. 3 is a schematic diagram of an internal structure of a combination of a tee connecting pipe and an atomizing generator
  • FIG. 4 is a schematic structural diagram of an atomization generator combination
  • FIG. 5 is a schematic structural diagram of an atomization control host
  • FIG. 6 is a block schematic diagram of a connection between the second circuit board and the first circuit board
  • FIG. 7 is a circuit diagram of a second circuit board.
  • a portable atomizing device for ICU to breathe autonomously according to airflow including an atomizing control host 03 and an atomizing generator 02 provided on the atomizing control host 03, and A tee connecting pipe 01 is provided on the generator 02.
  • the atomization generator 02 includes a bottom case 21, a medicinal solution tank 22 spaced from the bottom case 21 on the bottom case 21, a medicinal solution outlet 23 on the bottom of the medicinal solution tank 22, and a medicinal solution outlet 23
  • the bottom casing 21 on the same side is provided with an air guiding port 24, a nozzle tube 25 sleeved around the chemical liquid outlet 23 and the air guiding port 24, and a nozzle tube 25 is provided to separate the medical liquid outlet 23 and the gas guiding port 24
  • the partition plate 26 is opened, the atomizing sheet 27 is provided between the chemical solution outlet 23 and the nozzle tube 25, and the first circuit board 28 is provided in the bottom case 21 and connected to the atomizing sheet 27.
  • the partition 26 in the nozzle tube 25 partitions the inside of the nozzle tube 25 into an atomizing cavity 29 communicating with the medicinal solution outlet 23 and an air cavity 210 communicating with the air guiding port 24.
  • the air cavity 210 is provided with the first circuit board 28 Connected sensor 211.
  • the nozzle tube 25 on the side of the air cavity 210 is provided with a cross-section stopper 212 for blocking the opening of the air cavity 210, and a first air vent 213 and a second air vent 214 communicating with the air cavity 210 are respectively provided on both sides of the cross-sectional stopper 212.
  • the first circuit board 28 extends to the outside of the bottom case 21 and is connected to the atomization generator 0202.
  • the above-mentioned atomizing cavity 29 and air cavity 210 are independent from each other.
  • the air cavity 210 is used to detect the working airflow state of the ventilator without affecting the atomization, so that the airflow detection and the atomizing spray are not interfered with each other.
  • the sensor 211 is a gas flow sensor 211 or a gas pressure sensor.
  • the atomization control host 03 includes a casing 31, a second circuit board 32 provided in the casing 31, and a button 33 and an indicator light 34 connected to the second circuit board 32 on the casing 31.
  • the second circuit board 32 includes a main control unit, a power supply circuit connected to the main control unit, and an atomization driving unit and a battery connected to the power supply circuit, respectively.
  • the button 33 and the indicator light 34 are respectively connected to the main control unit.
  • the second circuit board 32 is provided with four metal contacts, which are a detection point A connected to the main control unit, a circuit negative B and an atomized positive C respectively connected to the atomization driving unit, and a power source connected to the battery. Positive D.
  • the detection point A is connected to the sensor 211 and the main control unit, respectively, for collecting the signal output of the sensor 211;
  • the negative electrode B of the circuit is connected to the atomization driving unit, the atomization sheet 27 and the sensor 211, respectively, for the sensor 211 and the atomization sheet 27.
  • the atomizing positive electrode C is connected to the atomizing driving unit and the atomizing sheet 27, respectively, for providing the AC voltage required for the operation of the atomizing sheet 27;
  • the positive electrode D of the power supply is connected to the power supply circuit and the sensor 211, respectively, for providing The DC voltage required for the sensor 211 to operate.
  • the first circuit board 28 is provided with four metal contacts in sequence, which are a first contact that is connected to the detection point A, a second contact that is connected to the circuit negative electrode B, and a first contact that is connected to the atomized positive electrode C. Three contacts, and a fourth contact that is in conduction with the positive pole D of the power supply.
  • the first contact is connected to the sensor 211
  • the second contact is connected to the sensor 211 and the atomizing sheet 27,
  • the third contact is connected to the atomizing sheet 27, and the fourth contact is connected to the sensor 211.
  • the main control unit is connected to the sensor 211.
  • the atomization driving unit is connected to the atomization sheet 27, and the purpose is to detect the gas flow in the three-way connection pipe, send a signal, and is controlled by the atomization control host 03 for atomizing the liquid medicine.
  • An interface 35 is provided on the housing 31 corresponding to the four metal contact positions to facilitate the first circuit board 28 to be in conduction with the metal contacts of the second circuit board 32 after the first circuit board 28 is inserted.
  • the power supply circuit includes a DC-AC conversion circuit and a boost circuit; the atomizing sheet 27 and the sensor 211 adopt AC voltage and DC voltage, respectively.
  • the power supply circuit may further include a charging circuit and a power switching circuit, and battery charging, and switch to external power supply when an external AC voltage is connected.
  • the atomizing control host 03 is provided with a clamp 04 for fixing the atomizing control host 03 to a bed fence or a table.
  • the clamp 04 includes a base 41, an inverted buckle 42 on which the atomization control host 03 is fixed, and a movable clamp 43 on the base 41 which clamps the whole to a hospital bed or a table.
  • the left and right ends of the tee connection pipe 01 are respectively connected with the external pipes of the ventilator and the connection pipes of the mask.
  • the above connection method can adopt interference connection, which makes the connection structure simpler.
  • the diameters of the left and right ends of the tee connection tube are different to distinguish different ports connecting the ventilator and the mask.
  • the ventilator is also possible to connect the ventilator with a larger diameter on the left and right ports of the three-way connecting tube and connect a mask with a smaller diameter.
  • the tee connection pipe is connected to the nozzle pipe 25.
  • the middle port of the three-way connection pipe is connected to the atomizer 0202, and the connection method can also be interference connection.
  • the bottom is provided with a slanted bottom surface 213 toward the medicinal solution outlet 23, and the medicinal solution tank 22 is provided with an upper cover 212.
  • the left and right ends of the three-way pipe connection pipe 01 are respectively connected with the external pipe of the ventilator and the connection pipe of the mask, and the middle pipe is in communication with the atomization generator 02.
  • the user can ventilate into the duct, and when the ventilator is working, the sensor 211 in the air cavity 210 detects and judges the internal air flow change, and then obtains the breathing state of the ventilator.
  • the first circuit board 28 sends a signal to the atomization control host 03, and the atomization control host 03 drives the atomization driving unit to the atomization sheet 27 at the nozzle
  • the liquid medicine is sprayed and administered in the tube 25, so that not only the purpose of combining respiratory therapy and atomizing therapy is achieved, but also a better therapeutic effect on the disease is avoided, and the defect of asynchronous misting and breathing is avoided.
  • the atomization generator 02 and the atomization control host 03 can be disassembled and connected, which is convenient for cleaning and replacing components such as the atomization generator 02, and the product can be disassembled and conveniently carried. Easy to use effect.
  • the gas pressure can be detected.
  • the sensor 211 in the atomization generator 02 detects a gas flow, it sends a corresponding signal to the atomization control host 03.
  • the main control unit reads a positive number, it means that there is positive gas pressure in the air cavity 210, which means that the ventilator is exhaling at this time, and the atomizing sheet 27 in the atomizing generator 02 is driven to perform atomization at this time.
  • the nebulized medicine solution will enter the patient's mouth through the tee connection tube and mask together with the air supply from the ventilator.
  • the main control unit reads a negative number, it means that there is negative gas pressure in the air cavity 210, which means that the ventilator is inhaling at this time. At this time, the main control unit should control the atomization generator 02 to stop the atomization sheet 27. Atomization.
  • the instantaneous flow and direction of the gas can be detected.
  • the positive and negative values read by the main control unit indicate different directions of gas flow.
  • a positive number can represent the gas from the ventilator nozzle to the tee connection tube Flow, that is, the ventilator is exhaling at this time;
  • a negative number indicates that the gas flows from the inside of the tee connection tube to the ventilator mouth, that is, the ventilator is inhaling at this time, and whether the atomizer generator 02 sprays and The gas pressure sensor is consistent.
  • U5 is a boost IC in the boost circuit of the power supply circuit.
  • the DC voltage is converted to an AC voltage by an oscillation circuit composed of several inductors and capacitors in the circuit, and then boosted by the field effect tube Q3, and finally from C
  • Point D is used as the positive electrode of the atomization to supply power to the atomizing sheet;
  • point D is connected to the DC voltage as the positive electrode of the power supply to supply power to the sensor;
  • point A is the detection point for receiving sensor data and is connected to the signal input pin of the main control unit receiving data ;
  • Point B is the negative electrode of the circuit, as the sensor and the atomizing sheet share the negative electrode and connect to the ground.

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Abstract

一种用于ICU根据气流自主呼吸的便携式雾化装置包括雾化控制主机(03)，雾化发生器(02)和三通管连接管(01)。雾化发生器(02)包括底壳(21)、药液箱(22)、药液出口(23)、导气口(24)、喷嘴管(25)、隔板(26)、雾化片(27)，并且在底壳(21)内设有与雾化片(27)连接的第一电路板(28)。喷嘴管(25)内的隔板(26)将喷嘴管内部分隔形成与药液出口(23)相通的雾化腔(29)，以及与导气口(24)相通的气腔(210)，气腔(210)内设有与第一电路板(28)连接的传感器(211)。气腔(210)一侧的喷嘴管上设有遮挡气腔开口的截面挡块(212)，挡块(212)两侧分别设置有与气腔(210)相通的第一通气口(213)和第二通气口(214)。第一电路板(28)延伸至底壳的外部与雾化发生器(02)连接。

Description

一种用于ICU根据气流自主呼吸的便携式雾化装置 技术领域
本发明涉及医疗器械领域，特别涉及一种用于ICU根据气流自主呼吸的便携式雾化装置。
背景技术
现代临床医学领域中，呼吸机作为一项能代替人工自主通气的手段，已经普遍用于各种原因所致的呼吸衰竭、大手术期间的麻醉呼吸管理、呼吸支持治疗和急救复苏中。呼吸机在现代医学领域内占有十分重要的地置，尤其是应用在ICU病房中。呼吸机具有提供输送气体的动力的作用，可替代人体自身呼吸肌的工作，并且能够产生一定的呼吸节律，包括呼吸频率和吸呼比；另外，还可以代替人体呼吸中枢神经支配呼吸节律的功能，提供合适的潮气量(VT)或分钟通气量(MV)，以满足呼吸代谢的需要。呼吸机供给的气体最好是经过加温和湿化，代替人体鼻腔功能，并能供给高于大气中所含的O 2量，以提高吸入O 2浓度，改善氧合。而采用雾化吸入方式的呼吸机治疗是呼吸系统疾病治疗方法中一种重要和有效的治疗方法，就是采用雾化器将药液雾化成微小颗粒，之后使用者通过呼吸将药物吸入呼吸道和肺部沉积，再经其粘膜吸收，从而达到无痛、迅速、有效治疗的目的。因此，能够有效地配合呼吸机使用的雾化治疗装置对于使用的患者来说是非常重要的。然而，现有结合呼吸机使用的雾化装置存在不能主动判断呼吸机呼吸频率的缺陷，雾化装置通常是根据与呼吸机已设定的呼吸频率相同频率进行喷雾，而且实际使用过程中对使用者的操作要求高，易出现雾化频率与呼吸频率不同步的问题，如此对于患者来说十分危险。
发明内容
鉴于上述问题，本发明的目的在于提供一种主动检测呼吸机的呼吸状态和匹配呼吸频率，及操作简单方便的用于ICU根据气流自主呼吸的便携式雾化装置。
为实现上述目的，本发明提供一种用于ICU根据气流自主呼吸的便携式雾化装置，其中，包括雾化控制主机和在雾化控制主机上设有的雾化发生器，及在雾化发生器上设有的三通管连接管。雾化发生器包括底壳、在底壳上设有与底壳空间隔开的药液箱、在药液箱底部上设有的药液出口、在药液出口同一侧的底壳上设有的导气口、在药液出口和导气口的外围套有的喷嘴管、在喷嘴管内设有将药液出口和导气口分隔开的隔板、在药液出口与喷嘴管之间设有的雾化片，及在底壳内设有与雾化片连接的第一电路板。喷嘴管内的隔板将喷嘴管内部分隔形成与药液出口相通的雾化腔，及与导气口相通的气腔，气腔内设有与第一电路板连接的传感器。气腔一侧的喷嘴管上设有遮挡气腔开口的截面挡块，截面挡块两侧分别设置有与气腔相通的第一通气口和第二通气口。第一电路板延伸至底壳的外部与雾化发生器连接。上述雾化腔和气腔相互独立，气腔在用于检测呼吸机工作气流的状态，同时又不影响雾化，实现了使气流检测与雾化喷雾相互不干扰。
在一些实施方式中，雾化控制主机包括外壳、在外壳内设有的第二电路板、在外壳上设有与第二电路板连接的按键和指示灯。
在一些实施方式中，第二电路板包括主控单元、与主控单元连接的电源电路，及分别与电源电路连接的雾化驱动单元和电池。按键和指示灯分别与主控单元连接。第二电路板上依次设置有四个金属触点，分别是与主控单元连接的 检测点A、分别与雾化驱动单元连接的电路负极B和雾化正极C，及与电池连接的电源正极D。由此，检测点A分别与传感器和主控单元连接，用于采集传感器的信号输出；电路负极B分别与雾化驱动单元、雾化片和传感器连接，用于传感器和雾化片共用电路负极；雾化正极C分别与雾化驱动单元和雾化片连接，用于提供雾化片工作所需的交流电压；电源正极D分别与电源电路和传感器连接，用于提供传感器工作所需的直流电压。
在一些实施方式中，第一电路板上依次设置有四个金属触点，分别是与检测点A导通的第一触点、与电路负极B导通的第二触点、与雾化正极C导通的第三触点，及与电源正极D导通的第四触点。第一触点与传感器连接，第二触点分别与传感器和雾化片连接，第三触点与雾化片连接，第四触点与传感器连接。主控单元与传感器电性连接，所述的雾化驱动单元与雾化片连接。
在一些实施方式中，在对应所述四个金属触点位置的外壳上设置有便于第一电路板插入后与第二电路板金属触点导通的接口。
在一些实施方式中，电源电路包括直流交流转换电路和升压电路；所述的雾化片和传感器分别采用交流电压和直流电压。另外，电源电路还可以包括充电电路和电源切换电路，及电池充电，并且在连接外部交流电压时切换为外部供电。
在一些实施方式中，雾化控制主机上设置有将雾化控制主机固定于病床围栏或桌边上的夹具。夹具包括底座、在底座上设有固定雾化控制主机的倒扣，及在底座上设有将整体夹于病床的围栏或桌边的活动钳。
在一些实施方式中，三通管连接管的左右两端上分别连接有与呼吸机的外部管道和面罩的连接管。上述连接方式可以采用过盈连接，使连接结构更加简 单。三通连接管的左右两端管口口径大小不同，以区分连接呼吸机和面罩的不同端口。也可以是将上述三通连接管的左右两端口径较大的连接呼吸机，口径较小的连接面罩。
在一些实施方式中，三通连接管与喷嘴管连接。由此，三通连接管的中间端口与雾化发生器连接，其连接方式也可以采用过盈连接。
在一些实施方式中，底部设置有向药液出口的斜底面，药液箱上设置有上盖。
本发明的有益效果是具有主动检测呼吸机的呼吸状态和匹配呼吸频率，及操作简单方便的效果。由于三通管连接管的左右两端上分别连接有与呼吸机的外部管道和面罩的连接管，中间的管与雾化发生器连通。使用者可以往管道内通气，当呼吸机工作时，通过气腔内传感器对内部的气流变化检测判断，之后得出呼吸机的呼吸状态。当传感器检测到气腔内的气体流动后，则由第一电路板将信号发送给雾化控制主机，再由雾化控制主机驱动雾化驱动单元对雾化片在喷嘴管内进行药液雾化给药，如此不但实现了呼吸治疗和雾化治疗相结合的目的，而且对病症起到更好的治疗效果，避免出现雾化与呼吸不同步的缺陷。又由于使用过程，对使用者操作要求低，具体有简单和方便效果。另外，雾化发生器和雾化控制主机，及其连接线都可以拆卸连接，既方便对雾化发生器等组件进行清洗和更换，又可以产品进行拆分，方便携带，实现了使用方便的效果。
附图说明
图1为本发明的结构示意图；
图2为三通管连接管和雾化发生器组合的结构示意图；
图3为三通管连接管和雾化发生器组合的内部结构示意图；
图4为雾化发生器组合的结构示意图；
图5为雾化控制主机的结构示意图；
图6为第二电路板与第一电路板连接的方框原理图；
图7为第二电路板的电路图。
具体实施方式
下面结合附图对发明作进一步详细的说明。
如图1-6所示，一种用于ICU根据气流自主呼吸的便携式雾化装置，包括雾化控制主机03和在雾化控制主机03上设有的雾化发生器02，及在雾化发生器02上设有的三通管连接管01。
雾化发生器02包括底壳21、在底壳21上设有与底壳21空间隔开的药液箱22、在药液箱22底部上设有的药液出口23、在药液出口23同一侧的底壳21上设有的导气口24、在药液出口23和导气口24的外围套有的喷嘴管25、在喷嘴管25内设有将药液出口23和导气口24分隔开的隔板26、在药液出口23与喷嘴管25之间设有的雾化片27，及在底壳21内设有与雾化片27连接的第一电路板28。喷嘴管25内的隔板26将喷嘴管25内部分隔形成与药液出口23相通的雾化腔29，及与导气口24相通的气腔210，气腔210内设有与第一电路板28连接的传感器211。气腔210一侧的喷嘴管25上设有遮挡气腔210开口的截面挡块212，截面挡块212两侧分别设置有与气腔210相通的第一通气口213和第二通气口214。第一电路板28延伸至底壳21的外部与雾化发生器0202连接。上述雾化腔29和气腔210相互独立，气腔210在用于检测呼吸机工作气流的状态，同时又不影响雾化，实现了使气流检测与雾化喷雾相互不 干扰。另外，传感器211为气体流量传感器211或气体压力传感器。
雾化控制主机03包括外壳31、在外壳31内设有的第二电路板32、在外壳31上设有与第二电路板32连接的按键33和指示灯34。第二电路板32包括主控单元、与主控单元连接的电源电路，及分别与电源电路连接的雾化驱动单元和电池。按键33和指示灯34分别与主控单元连接。第二电路板32上依次设置有四个金属触点，分别是与主控单元连接的检测点A、分别与雾化驱动单元连接的电路负极B和雾化正极C，及与电池连接的电源正极D。检测点A分别与传感器211和主控单元连接，用于采集传感器211的信号输出；电路负极B分别与雾化驱动单元、雾化片27和传感器211连接，用于传感器211和雾化片27共用电路负极；雾化正极C分别与雾化驱动单元和雾化片27连接，用于提供雾化片27工作所需的交流电压；电源正极D分别与电源电路和传感器211连接，用于提供传感器211工作所需的直流电压。第一电路板28上依次设置有四个金属触点，分别是与检测点A导通的第一触点、与电路负极B导通的第二触点、与雾化正极C导通的第三触点，及与电源正极D导通的第四触点。第一触点与传感器211连接，第二触点分别与传感器211和雾化片27连接，第三触点与雾化片27连接，第四触点与传感器211连接。主控单元与传感器211连接。雾化驱动单元与雾化片27连接，目的是用于检测三通连接管内的气体流动、发送信号并受控于雾化控制主机03进行药液雾化。在对应所述四个金属触点位置的外壳31上设置有便于第一电路板28插入后与第二电路板32金属触点导通的接口35。电源电路包括直流交流转换电路和升压电路；所述的雾化片27和传感器211分别采用交流电压和直流电压。另外，电源电路还可以包括充电电路和电源切换电路，及电池充电，并且在连接外部交流电 压时切换为外部供电。雾化控制主机03上设置有将雾化控制主机03固定于病床围栏或桌边上的夹具04。夹具04包括底座41、在底座41上设有固定雾化控制主机03的倒扣42，及在底座41上设有将整体夹于病床的围栏或桌边的活动钳43。三通管连接管01的左右两端上分别连接有与呼吸机的外部管道和面罩的连接管。上述连接方式可以采用过盈连接，使连接结构更加简单。三通连接管的左右两端管口口径大小不同，以区分连接呼吸机和面罩的不同端口。也可以是将上述三通连接管的左右两端口径较大的连接呼吸机，口径较小的连接面罩。三通连接管与喷嘴管25连接。三通连接管的中间端口与雾化发生器0202连接，其连接方式也可以采用过盈连接。底部设置有向药液出口23的斜底面213，药液箱22上设置有上盖212。三通管连接管01的左右两端上分别连接有与呼吸机的外部管道和面罩的连接管，中间的管与雾化发生器02连通。使用者可以往管道内通气，当呼吸机工作时，通过气腔210内传感器211对内部的气流变化检测判断，之后得出呼吸机的呼吸状态。当传感器211检测到气腔210内的气体流动后，则由第一电路板28将信号发送给雾化控制主机03，再由雾化控制主机03驱动雾化驱动单元对雾化片27在喷嘴管25内进行药液雾化给药，如此不但实现了呼吸治疗和雾化治疗相结合的目的，而且对病症起到更好的治疗效果，避免出现雾化与呼吸不同步的缺陷。又由于使用过程，对使用者操作要求低，具体有简单和方便效果。另外，雾化发生器02和雾化控制主机03，及其连接线都可以拆卸连接，既方便对雾化发生器02等组件进行清洗和更换，又可以产品进行拆分，方便携带，实现了使用方便的效果。
若传感器211采用气体压力传感器时，可以检测气体压力。当雾化发生器02中的传感器211检测到有气体流动后，发送相应信号到雾化控制主机03。 若主控单元读出正数，则代表气腔210内是气体正压，即表示此时呼吸机是呼气状态，同时驱动雾化发生器02中的雾化片27进行雾化，此时雾化后的药液将和呼吸机的供气一起经由三通连接管和面罩进入患者的口中。相反，若主控单元读出负数，则代表气腔210内是气体负压，即表示此时呼吸机是吸气状态，此时主控单元应控制雾化发生器02对雾化片27停止雾化。
若传感器211采用气体流量传感器，可以检测气体的瞬时流量和方向，主控单元读出数据的正负即表示气体不同流动方向，例如可以是正数代表气体从呼吸机管口向三通连接管管内流动，即此时呼吸机是呼气状态；负数代表气体从三通连接管管内向呼吸机管口流动，即此时呼吸机是吸气状态，其不同状态下雾化发生器02是否喷雾与气体压力传感器一致。
如图7所示，U5为电源电路中升压电路中的升压IC，直流电压通过电路中若干电感和电容构成的振荡电路变成交流电压，再经由场效应管Q3升压，最后从C点引出作为雾化正极，为雾化片供电；D点与直流电压相连作为电源正极，为传感器供电；A点为接收传感器数据的检测点，与主控单元接收数据的信号输入端引脚相连；B点为电路负极，作为传感器和雾化片共用负极并接于地线。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于发明的保护范围。

Claims (10)

  1. 一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，包括雾化控制主机和在雾化控制主机上设有的雾化发生器，及在雾化发生器上设有的三通管连接管；
    所述的雾化发生器包括底壳、在底壳上设有与底壳空间隔开的药液箱、在药液箱底部上设有的药液出口、在药液出口同一侧的底壳上设有的导气口、在药液出口和导气口的外围套有的喷嘴管、在喷嘴管内设有将药液出口和导气口分隔开的隔板、在药液出口与喷嘴管之间设有的雾化片，及在底壳内设有与雾化片连接的第一电路板；
    所述喷嘴管内的隔板将喷嘴管内部分隔形成与药液出口相通的雾化腔，及与导气口相通的气腔；所述的气腔内设有与第一电路板连接的传感器；
    所述气腔一侧的喷嘴管上设有遮挡气腔开口的截面挡块，所述的截面挡块两侧分别设置有与气腔相通的第一通气口和第二通气口；
    所述的第一电路板延伸至底壳的外部与雾化发生器连接。
  2. 根据权利要求1所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的雾化控制主机包括外壳、在外壳内设有的第二电路板、在外壳上设有与第二电路板连接的按键和指示灯。
  3. 根据权利要求2所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的第二电路板包括主控单元、与主控单元连接的电源电路，及分别与电源电路连接的雾化驱动单元和电池；
    所述的按键和指示灯分别与主控单元连接；
    所述的第二电路板上依次设置有四个金属触点，分别是与主控单元连接的检测 点A、分别与雾化驱动单元连接的电路负极B和雾化正极C，及与电池连接的电源正极D。
  4. 根据权利要求3所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的第一电路板上依次设置有四个金属触点，分别是与检测点A导通的第一触点、与电路负极B导通的第二触点、与雾化正极C导通的第三触点，及与电源正极D导通的第四触点；
    所述的第一触点与传感器连接；
    所述的第二触点分别与传感器和雾化片连接；所述的第三触点与雾化片连接；
    所述的第四触点与传感器连接；
    所述的主控单元与传感器电性连接，所述的雾化驱动单元与雾化片连接。
  5. 根据权利要求3所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，在对应所述四个金属触点位置的外壳上设置有便于第一电路板插入后与第二电路板金属触点导通的接口。
  6. 根据权利要求3所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的电源电路包括直流交流转换电路和升压电路；所述的雾化片和传感器分别采用交流电压和直流电压。
  7. 根据权利要求1所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的雾化控制主机上设置有将雾化控制主机固定于病床围栏或桌边上的夹具；
    所述的夹具包括底座、在底座上设有固定雾化控制主机的倒扣，及在底座上设有将整体夹于病床的围栏或桌边的活动钳。
  8. 根据权利要求1所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述三通管连接管的左右两端上分别连接有与呼吸机的外部管道和面罩的连接管。
  9. 根据权利要求1或8所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的三通连接管与喷嘴管连接。
  10. 根据权利要求1所述的一种用于ICU根据气流自主呼吸的便携式雾化装置，其特征在于，所述的底部设置有向药液出口的斜底面；所述的药液箱上设置有上盖。
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