Water level alarm device of breathing machine humidifying tank

An alarm device and water level alarm technology, which is applied in the field of medical equipment, can solve the problems of patients with inflow airway, cumbersome operation, aspiration, etc., and achieve the effect of reducing false alarms, reducing medical accidents, and strong portability

Pending Publication Date: 2019-01-22
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Too much water in the humidification tank will easily cause the water in the tank to flow into the airway along the ventilator pipeline, causing the patient to inhale and cause respiratory tract infection; while too little water in the tank will easily cause the patient's respiratory mucosa to dry out, and

Method used

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  • Water level alarm device of breathing machine humidifying tank
  • Water level alarm device of breathing machine humidifying tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The ventilator humidification tank water level alarm device according to the first embodiment of the present invention includes:

[0030] A collimated light emitting device 2 arranged outside the humidification tank body 1;

[0031] The first light sensor 3 arranged at the first height limit h1 of the collimated light emitting device 2 relative to the tank body;

[0032] The second light sensor 4 arranged at the second height h2 of the collimated light emitting device 2 relative to the tank body;

[0033] An alarm unit 5 connected to the first light sensor 3 and the second light sensor 4;

[0034] The collimated light emitting device 3 is configured to emit collimated light to the first light sensor 3 and the second light sensor 4;

[0035] The incident angle between the light emitted by the collimated light emitting device 3 and the liquid surface inside the tank is greater than the total reflection angle of the interface between the liquid and the air inside the tan...

Embodiment 2

[0042] In order to achieve the technical purpose of being convenient to use, in another optional embodiment, the collimated light emitting device, the first light sensor and the second light sensor in the water level alarm device of the ventilator humidification tank of the present invention pass vacuum Adsorbed on the outer surface of the tank.

[0043] Through the above settings, the collimated light emitting device, the first light sensor and the second light sensor can be easily disassembled and transplanted from the humidification tank of the ventilator to other humidification tanks of the ventilator, compatibility and practicability extremely strong

[0044] In order to reduce the interference of ambient light on the light sensor, the wavelength range of the light emitted by the collimated light emitting device is set to 760nm-1000nm.

[0045] In order to further reduce the production cost, the wavelength ranges sensed by the first light sensor and the second light sens...

Embodiment 3

[0048] In order to further achieve the technical effect of real-time alarm, in another optional embodiment, the alarm unit in Embodiment 1 also includes a wireless transmission module, which is used to send humidification tank status information to the target customer according to the water level of the tank body, so that , Even if the medical staff is not at the medical site, they can receive the water level information of the humidification tank in real time, which minimizes the occurrence of medical accidents.

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Abstract

The invention discloses a water level alarm device of a breathing machine humidifying tank, and relates to the field of medical equipment. The alarm device comprises a collimating light emitting device which is arranged outside the humidifying tank, a first photo-sensor which is arranged at a first height-limiting part of the other side, relative to the tank body, of the collimating light emittingdevice, a second photo-sensor which is arranged at a second height-limiting part of the other side, relative to the tank body, of the collimating light emitting device, and an alarm unit which is connected to the first photo-sensor and the second photo-sensor, wherein the collimating light emitting device is configured to emit collimating light towards the first photo-sensor and the second photo-sensor; a vertical distance that the collimating light emitting device is kept away from the bottom of the humidifying tank is less than a vertical distance that the second height-limiting part is kept way from the bottom of the humidifying tank; and an incidence angle kept between emergent light of the collimating light emitting device and a liquid level in the tank body is greater than a full reflection angle between liquid in the tank body and an air interface. According to the alarm device, real-time alarm can be achieved, and medical accidents can be reduced; and meanwhile, the alarm device is low in cost and strong in portability.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a water level alarm device for a humidification tank of a ventilator. Background technique [0002] The human airway has the function of heating and humidifying, but when critically ill patients are assisted by a ventilator, the original heating and humidifying function is deprived, and they must rely on the humidification tank of the ventilator to humidify the central compressed air and send it into the patient's airway . [0003] The ventilator humidification tank is an important part of the ventilator, which can adjust the humidity of the air entering the patient's respiratory system. The commonly used humidification tanks for ventilators in clinical practice only have water level marks on the tank body to indicate water injection, which requires medical staff to pay close attention to the water level. Too much water in the humidification tank will easily cause the water in ...

Claims

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Application Information

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IPC IPC(8): A61M16/16
CPCA61M16/16A61M16/0051A61M2205/18
Inventor 陈洁胡成平潘频华
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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