CN113769226A - Breathing machine humidifying jar of adjustable water level line and temperature - Google Patents

Breathing machine humidifying jar of adjustable water level line and temperature Download PDF

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Publication number
CN113769226A
CN113769226A CN202111076760.7A CN202111076760A CN113769226A CN 113769226 A CN113769226 A CN 113769226A CN 202111076760 A CN202111076760 A CN 202111076760A CN 113769226 A CN113769226 A CN 113769226A
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China
Prior art keywords
liquid level
temperature
water
adjusting
humidification tank
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Granted
Application number
CN202111076760.7A
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Chinese (zh)
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CN113769226B (en
Inventor
陈倪
杨娟
方丹
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Chengdu Fifth People's Hospital
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Chengdu Fifth People's Hospital
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Priority to CN202111076760.7A priority Critical patent/CN113769226B/en
Publication of CN113769226A publication Critical patent/CN113769226A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1075Preparation of respiratory gases or vapours by influencing the temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • A61M16/162Water-reservoir filling system, e.g. automatic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3368Temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3379Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3386Low level detectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/36General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance

Abstract

The invention discloses a breathing machine humidification tank capable of adjusting a water level line and temperature, belongs to the technical field of medical instruments, and solves the problem that the water level in the humidification tank cannot be automatically adjusted and the constant temperature cannot be kept in the traditional technology.

Description

Breathing machine humidifying jar of adjustable water level line and temperature
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a breathing machine humidification tank capable of adjusting water level and temperature.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient.
In the use of breathing machine, need pass through the humidifying jar humidification with oxygen, for oxygen raise the temperature and humidity, inhale for patient again, reduce mechanical ventilation patient's respiratory tract secondary infection to and the stimulation to cardiopulmonary system, keep the alveolus moist, reduce the consumption of heat and respiratory tract moisture simultaneously, make the difficult phlegm scab that produces of air flue to can reduce the viscosity of secretion, promote the sputum excretion.
In the prior art, because of the busy work of medical personnel, often lead to the phenomenon of dry combustion in the humidification jar or full jar, can lead to patient's air flue mucous membrane system serious damage or dysfunction like this, so lead to the airway secretion to dry up, the formation of phlegm scab finally leads to patient's lung to infect aggravate, off-line difficulty.
Disclosure of Invention
Aiming at the problem that the water level in the humidification tank cannot be automatically adjusted and the humidification tank can be kept at a constant temperature in the prior art, the invention provides a breathing machine humidification tank capable of adjusting the water level line and the temperature, and the purpose is as follows: the automatic water level regulation and constant temperature function in the humidification tank are realized.
The technical scheme adopted by the invention is as follows:
the utility model provides a breathing machine humidifying jar of adjustable water line and temperature, includes the humidifying jar, the fixed trachea and outlet duct of being provided with in top of humidifying jar, the fixed temperature regulation base that is provided with in bottom of humidifying jar, the fixed resistance liquid level detector and the temperature monitoring probe of being provided with in inside of humidifying jar, the top of humidifying jar is provided with liquid level governing system, resistance liquid level detector, temperature monitoring probe, the base that adjusts the temperature are connected with the PI D control cabinet.
Adopt above-mentioned scheme, accessible resistance liquid level detector carries out the real-time detection to the liquid level height in the humidifying jar, and carry out liquid level monitoring through the PI D control cabinet, when the liquid level of humidifying jar is less than minimum liquid level, PI D control cabinet control liquid level governing system lets in the humidifying water to the humidifying jar, and stop supplying water when reaching the highest liquid level height of humidifying jar, the temperature monitoring probe that wherein sets up can the temperature in the real-time detection humidifying jar, and give the PI D control cabinet with the temperature transmission, the PI D control cabinet carries out the comparison according to its temperature that is predetermine and the temperature in the humidifying jar and adjusts, output through the control temperature regulation in the humidifying jar of base, through the device, real-time automatic water level control and temperature regulation in the humidifying jar have been realized.
An upper liquid level electrode is fixedly arranged on the resistance liquid level detector, a lower liquid level electrode is fixedly arranged below the upper liquid level electrode, and the heights of the upper liquid level electrode and the lower liquid level electrode are respectively arranged at the highest liquid level and the lowest liquid level of the humidification tank.
Adopt above-mentioned scheme, wherein go up liquid level electrode and lower liquid level electrode can carry out the liquid level control through the resistance difference of air with water, when the resistance value that it monitored sharply reduces, then explain that there is water to have crossed, when the resistance value sharply becomes big, then explains that the liquid level has fallen to below its electrode position, through above-mentioned device, can monitor the liquid level through the resistance, realized the liquid level control of high-efficient accurate and high real-time nature.
The liquid level regulating system comprises a water storage tank, a first water inlet pipe is fixedly arranged on one side of the water storage tank, a water outlet pipe is fixedly arranged on the other side of the water storage tank, a second water inlet pipe is fixedly arranged at the top of the humidification tank, the water outlet pipe is detachably connected with the second water inlet pipe, and a valve is fixedly arranged on the water outlet pipe.
The liquid level monitoring device is characterized in that a liquid level monitor is fixedly arranged inside the water storage tank and connected with the PI D console, and the liquid level monitor is arranged at the lowest liquid level of the water storage tank.
Adopt above-mentioned scheme, can monitor the water level in the water storage tank, when the liquid level in the water storage tank was crossed low, accessible PI D control cabinet monitored to add water in to the water storage tank through first inlet tube, through above-mentioned scheme, further prevented the condition of dry combustion method in the humidifying jar, guaranteed that the service water in humidifying jar and the water storage tank is sufficient.
And a resistance wire heater is fixedly arranged in the temperature adjusting base, and is electrically connected with a current regulator which is connected with the PI D console.
By adopting the scheme, the current introduced to the resistance wire heater by the current regulator can be controlled by the PI D control console, so that the self-control performance of the device is improved.
The valve is an electric control ball valve, and the electric control ball valve is connected with the PI D console.
By adopting the scheme, the electric control ball valve can be automatically controlled through the PI D control console, and the working intensity of medical staff is reduced.
The water outlet pipe is a medical silicone tube and is sleeved outside the second water inlet pipe.
The PI D control console comprises an actual measurement value display area and a preset value display area, a switch button is arranged at the bottom of the PI D control console, and a ten-digit temperature adjusting button and a one-digit temperature adjusting button are arranged on one side of the switch button.
The number selectable by the temperature ten-digit adjusting button is 0, 1, 2 and 3, and the number selectable by the temperature one-digit adjusting button is 0-9.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. accessible resistance liquid level detector carries out the real-time detection to the liquid level in the humidifying jar, and carry out liquid level control through the PI D control cabinet, when the liquid level of humidifying jar is less than minimum liquid level, the PI D control cabinet control liquid level governing system lets in the humidifying water to the humidifying jar, and stop supplying water when reaching the highest liquid level of humidifying jar, the temperature monitoring probe that wherein sets up can the temperature in the real-time detection humidifying jar, and give the PI D control cabinet with the temperature transmission, the PI D control cabinet carries out the comparison according to its temperature in being predetermine temperature and the humidifying jar and adjusts, output through the control temperature regulation in the humidifying jar is carried out to the base, through the above-mentioned device, real-time automatic water level control and temperature regulation in the humidifying jar have been realized.
2. Wherein go up liquid level electrode and lower liquid level electrode can carry out the liquid level control through the resistance difference of air with water, when the resistance value that it monitored sharply reduces, then explain that there is water to have crossed, when the resistance value sharply becomes big, then explain that the liquid level has fallen to below its electrode position, through above-mentioned device, can monitor the liquid level through the resistance, realized the liquid level control of high-efficient accurate and high real-time nature.
3. Can monitor the water level in the water storage tank, when the liquid level in the water storage tank was low excessively, accessible PI D control cabinet monitored to add water in to the water storage tank through first inlet tube, through above-mentioned scheme, further prevented the condition of dry combustion method in the humidifying jar, guaranteed that the service water in humidifying jar and the water storage tank is sufficient.
4. The PI D control console can be used for controlling the current introduced by the current regulator to the resistance wire heater, so that the self-control performance of the device is improved.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the main viewing internal structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the main viewing angle of the humidification tank in accordance with one embodiment of the present invention;
fig. 3 is a main view structure diagram of a console according to an embodiment of the invention.
Reference numerals: 1-a console; 2-a humidifying tank; 3, entering a trachea; 4-air outlet pipe; 5-a resistance level detector; 6-liquid surface electrode; 7-lower liquid level electrode; 8-temperature monitoring probe; 9-resistance wire heater; 10-current regulator; 11-a water storage tank; 12-a liquid level monitor; 13-a first water inlet pipe; 14-an electrically controlled ball valve; 15-a second water inlet pipe; 16-a temperature-adjusting base; 17-a preset value display area; 18-a switch button; 19-ten digit temperature adjustment button; 20-temperature single digit adjusting button; 21-measured value display area.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 3.
The first embodiment is as follows:
the utility model provides a breathing machine humidifying jar of adjustable water line and temperature, includes humidifying jar 2, the fixed trachea 3 and the outlet duct 4 of being provided with in top of humidifying jar 2, the fixed base 16 that adjusts the temperature that is provided with in bottom of humidifying jar 2, the fixed resistance liquid level detector 5 and the temperature monitoring probe 8 that are provided with in inside of humidifying jar 2, the top of humidifying jar 2 is provided with liquid level governing system, resistance liquid level detector 5, temperature monitoring probe 8, the base 16 that adjusts the temperature are connected with PI D control cabinet 1.
An upper liquid level electrode 6 is fixedly arranged on the resistance liquid level detector 5, a lower liquid level electrode 7 is fixedly arranged below the upper liquid level electrode 6, and the heights of the upper liquid level electrode 6 and the lower liquid level electrode 7 are respectively arranged at the highest liquid level and the lowest liquid level of the humidification tank 2.
The liquid level regulating system comprises a water storage tank 11, a first water inlet pipe 13 is fixedly arranged on one side of the water storage tank 11, a water outlet pipe is fixedly arranged on the other side of the water storage tank, a second water inlet pipe 15 is fixedly arranged at the top of the humidification tank 2, the water outlet pipe is detachably connected with the second water inlet pipe 15, and a valve is fixedly arranged on the water outlet pipe
The inside fixed liquid level monitor 12 that is provided with of aqua storage tank 11, liquid level monitor 12 connects PI D control cabinet 1, the position that sets up of liquid level monitor 12 is in the minimum liquid level department of aqua storage tank 11.
A resistance wire heater 9 is fixedly arranged inside the temperature adjusting base 16, the resistance wire heater 9 is electrically connected with a current regulator 10, and the current regulator 10 is connected with the PI D control console 1.
The valve is an electric control ball valve 14, and the electric control ball valve 14 is connected with the PI D console 1.
The water outlet pipe is a medical silicone tube and is sleeved outside the second water inlet pipe 15.
The PI D control console 1 comprises an actual measurement value display area 21 and a preset value display area 17, a switch button 18 is arranged at the bottom of the PI D control console 1, and a temperature ten-digit adjusting button 19 and a temperature one-digit adjusting button 20 are arranged on one side of the switch button 18.
The number of the temperature ten-digit adjusting button 19 can be selected to be 0, 1, 2 and 3, and the number of the temperature one-digit adjusting button 20 can be selected to be 0-9.
In the above embodiment, the oxygen in the breathing machine is introduced from the inlet pipe 3 at the top of the humidification tank 2, the water in the humidification tank 2 is humidified and heated by the oxygen passing through, in the humidification process, the humidified water in the humidification tank is gradually evaporated to cause the liquid level to be gradually lowered, when the liquid level falls below the lower liquid level electrode 7, because the resistance of the air is larger than that of the water and is close to insulation, the resistance received by the lower liquid level electrode 7 is sharply increased, at this time, the PI D control console 1 can monitor the resistance change and control the electric control ball valve 14 to be opened, when the electric ball valve is opened, the water in the water storage tank 11 enters the humidification tank 2 through the outlet pipe, the liquid level in the humidification tank 2 rises, when the liquid level in the humidification tank passes through the upper liquid level electrode 6, the resistance received by the upper liquid level electrode 6 is sharply reduced, and when the PI D control console 1 monitors that the resistance of the upper liquid level electrode 6 is reduced, and controlling the electric control ball valve 14 to be closed, and stopping the liquid storage tank 11 from conveying water into the humidification tank, wherein the resistance liquid level detector 5 is fixedly arranged on the side wall of the humidification tank 2, and the fixing mode can be that a cavity is arranged on the inner wall of the humidification tank 2, the resistance liquid level detector 5 is arranged in the cavity, and the upper liquid level electrode 6 and the lower liquid level electrode 7 are exposed in the humidification tank 2. By the method, the automatic control of the liquid level in the humidification tank 2 can be realized, when the liquid level is lower than the lowest liquid level, the water is automatically fed, when the liquid level reaches the highest liquid level, the water feeding is automatically stopped, the dry burning or full tank condition in the humidification tank 2 is prevented, wherein the heights of the upper liquid level electrode 6 and the lower liquid level electrode 7 can be adjusted according to the specific use condition, so that the liquid level in the humidification tank 2 is kept at the optimal use height,
wherein the PI D control console 1 completes the constant temperature control of the humidification tank 2 by matching with the temperature monitoring probe 8 and the temperature adjusting base 16, and the principle is as follows:
firstly, inputting a preset temperature into a PI D control console 1, wherein the preset temperature is the temperature expected to be kept by a humidification tank 2, a temperature monitoring probe 8 arranged in the humidification tank 2 can monitor the temperature in the humidification tank 2 in real time and transmit the temperature to the PI D control console 1, the PI D control console 1 adjusts the preset temperature and the current temperature in the humidification tank 2, and when the temperature is lower than the preset temperature, a current regulator 10 is controlled to increase the input power to a resistance wire heater 9 until the temperature detected by the temperature monitoring probe 8 reaches the preset temperature; when the temperature detected by the temperature monitoring probe 8 is lower than the preset temperature, the input current is reduced until the temperature reaches the preset value, in the embodiment, the preset temperature to the PI D control console 1 is 36.5 ℃, wherein the preset temperature is matched with the resistance liquid level detector, the content of oxygen and water flowing through can be kept at 40mg/L, the humidity reaches 100%, the humidity and the temperature required by the optimal human body inhalation are met, in use, attention needs to be paid, wherein the temperature range of the gas input into the humidifying tank 2 is 18-26 ℃, in use, the switch button 18 is pressed down firstly, then the preset temperature adjustment of the PI D control console is carried out, wherein the ten-digit adjustment of the temperature is carried out by the temperature ten-digit adjusting button 19, the adjustable number is 0-3, namely the maximum adjustable temperature of the PI D can be adjusted within 40 ℃, and the single-digit adjustment of the temperature is carried out by the temperature single-digit adjusting button 20, in the present embodiment, the preset temperature is 36.5 ℃, wherein the preset temperature can be displayed in the preset value display area 17, wherein SV represents the preset value, and the temperature detected in the humidification tank 2 by the temperature monitoring probe 8 is displayed by the measured value display area 21, wherein PV in the PI D console 1 represents the actual value of the temperature.
Through the proportional integral derivative control of the PI D control console 1, the stable temperature regulation of the humidification tank 2 can be realized, and the adverse effect on a patient caused by too fast or too slow temperature regulation in the humidification tank 2 is avoided.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims (9)

1. The utility model provides a breathing machine humidifying jar of adjustable water line and temperature, includes humidifying jar (2), the fixed trachea (3) and outlet duct (4) of being provided with in top of humidifying jar (2), its characterized in that, the fixed temperature regulation base (16) that is provided with in bottom of humidifying jar (2), the fixed resistance liquid level detector (5) and the temperature monitoring probe (8) of being provided with in inside of humidifying jar (2), the top of humidifying jar (2) is provided with liquid level governing system, resistance liquid level detector (5), temperature monitoring probe (8), temperature regulation base (16) are connected with PID control cabinet (1).
2. The humidification tank of a breathing machine capable of adjusting water level and temperature according to claim 1, wherein an upper liquid level electrode (6) is fixedly arranged on the resistance liquid level detector (5), a lower liquid level electrode (7) is fixedly arranged below the upper liquid level electrode (6), and the heights of the upper liquid level electrode (6) and the lower liquid level electrode (7) are respectively arranged at the highest liquid level and the lowest liquid level of the humidification tank (2).
3. The breathing machine humidification tank capable of adjusting the water level and the temperature according to claim 1, wherein the liquid level adjusting system comprises a water storage tank (11), a first water inlet pipe (13) is fixedly arranged on one side of the water storage tank (11), a water outlet pipe is fixedly arranged on the other side of the water storage tank, a second water inlet pipe (15) is fixedly arranged on the top of the humidification tank (2), the water outlet pipe is detachably connected with the second water inlet pipe (15), and a valve is fixedly arranged on the water outlet pipe.
4. The breathing machine humidification tank capable of adjusting the water level and the temperature according to claim 3, wherein a liquid level monitor (12) is fixedly arranged inside the water storage tank (11), the liquid level monitor (12) is connected with the PID control console (1), and the liquid level monitor (12) is arranged at the lowest liquid level of the water storage tank (11).
5. The respirator humidification tank capable of adjusting the water level line and the temperature according to claim 1, characterized in that a resistance wire heater (9) is fixedly arranged inside the temperature adjusting base (16), the resistance wire heater (9) is electrically connected with a current regulator (10), and the current regulator (10) is connected with the PID control console (1).
6. The humidification tank of a breathing machine capable of adjusting water level and temperature according to claim 3, wherein the valve is an electrically controlled ball valve (14), and the electrically controlled ball valve (14) is connected with the PID console (1).
7. The humidification tank of a breathing machine capable of adjusting water level and temperature as claimed in claim 3, wherein the water outlet pipe is a medical silicone tube and is sleeved outside the second water inlet pipe (15).
8. The ventilator humidification tank capable of adjusting water level and temperature according to claim 1, wherein the PID console (1) comprises an actual value display area (21) and a preset value display area (17), the bottom of the PID console (1) is provided with a switch button (18), and one side of the switch button (18) is provided with a ten-digit temperature adjustment button (19) and a one-digit temperature adjustment button (20).
9. The ventilator humidification tank capable of adjusting water level and temperature according to claim 8, wherein the ten-digit temperature adjustment button (19) is selectable by 0, 1, 2, 3, and the one-digit temperature adjustment button (20) is selectable by 0-9.
CN202111076760.7A 2021-09-14 2021-09-14 Breathing machine humidification jar of adjustable water line and temperature Active CN113769226B (en)

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CN202111076760.7A CN113769226B (en) 2021-09-14 2021-09-14 Breathing machine humidification jar of adjustable water line and temperature

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Application Number Priority Date Filing Date Title
CN202111076760.7A CN113769226B (en) 2021-09-14 2021-09-14 Breathing machine humidification jar of adjustable water line and temperature

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CN113769226B CN113769226B (en) 2024-02-13

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127845A (en) * 1987-11-12 1989-05-19 Daikin Ind Ltd Drain control device for air conditioner
JPH08327434A (en) * 1995-05-29 1996-12-13 Kuramo Denko Kk Water-level detection apparatus
JP2001029474A (en) * 1999-07-21 2001-02-06 Central Uni Co Ltd Heating and humidifying inhaler
CN209696026U (en) * 2018-12-14 2019-11-29 河南辉瑞生物医电技术有限公司 A kind of humidifying device for breathing machine
CN210020768U (en) * 2019-03-29 2020-02-07 台州恩泽医疗中心(集团) Liquid detection and filling system of humidifying tank of breathing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127845A (en) * 1987-11-12 1989-05-19 Daikin Ind Ltd Drain control device for air conditioner
JPH08327434A (en) * 1995-05-29 1996-12-13 Kuramo Denko Kk Water-level detection apparatus
JP2001029474A (en) * 1999-07-21 2001-02-06 Central Uni Co Ltd Heating and humidifying inhaler
CN209696026U (en) * 2018-12-14 2019-11-29 河南辉瑞生物医电技术有限公司 A kind of humidifying device for breathing machine
CN210020768U (en) * 2019-03-29 2020-02-07 台州恩泽医疗中心(集团) Liquid detection and filling system of humidifying tank of breathing machine

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