Breathing machine system with temperature and humidity monitoring function

By introducing temperature and humidity monitoring into the ventilator system, the problem of temperature and humidity deviation in respiratory airflow during mechanical ventilation has been solved, enabling precise control of the patient's respiratory airflow and improving safety.

CN121130239APending Publication Date: 2025-12-16TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202511395119.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

During mechanical ventilation, as the respiratory airflow is delivered through the long breathing tubing, heat loss occurs due to the ambient temperature being lower than the temperature of the respiratory airflow, resulting in condensation. This leads to a significant deviation between the temperature and humidity of the respiratory airflow that finally reaches the patient's airway and the monitored values.

Method used

A ventilator system with temperature and humidity monitoring function is adopted, including a ventilator, a heating and humidifying unit, a Y-tube, a three-way connector, a temperature and humidity sensor, and a temperature and humidity monitoring host. The temperature and humidity of the breathing airflow are monitored in real time through an electronically controlled sampling valve and a temperature and humidity sensor, and are precisely regulated by the temperature and humidity monitoring host. The information is displayed on the screen and an alarm is issued when the preset value is exceeded through an alarm component.

Benefits of technology

It enables precise control of the temperature and humidity of the respiratory airflow to patients, ensuring that it is always within the optimal physiological range acceptable to the human body, thereby improving treatment safety and nursing efficiency.

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Abstract

The invention discloses a breathing machine system with a temperature and humidity monitoring function, and belongs to the technical field of breathing treatment equipment. In the breathing machine system, an inspiration port of a breathing machine is communicated with an air inlet port of a heating humidifier through a pipeline, and an expiration port of the breathing machine is communicated with a first branch pipe of a Y-shaped pipe through a pipeline; an air outlet port of the heating humidifier is communicated with a first port of the three-way joint; a second branch pipe of the Y-shaped pipe is communicated with a second port of the three-way joint through a pipeline; an air inlet port of the temperature and humidity sensor is communicated with a third port of the three-way connector through a pipeline, an electric control sampling valve is arranged on the pipeline between the temperature and humidity sensor and the three-way connector, the electric control sampling valve and an air suction valve in the breathing machine are opened synchronously, and the opening time of the electric control sampling valve is shorter than that of the air suction valve in the breathing machine. According to the design, the temperature and humidity of breathing airflow obtained by a patient can be accurately regulated and controlled in the process of assisting respiratory therapy by using the breathing apparatus.
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Description

Technical Field

[0001] This invention relates to the field of respiratory therapy equipment technology, and in particular to a ventilator system with temperature and humidity monitoring function. Background Technology

[0002] Mechanical ventilation is a core life support method for maintaining respiratory function in patients in intensive care, surgical anesthesia, and other fields. The establishment of an artificial airway disrupts the natural temperature and humidification function of the upper respiratory tract for inhaled air. Therefore, during mechanical ventilation, a heated humidifier is often used to heat and humidify the gas delivered from the ventilator (breathing airflow) to prevent complications such as airway mucosal dryness, ciliary dysfunction, and sputum crust formation. However, during ventilator use, only the current temperature and humidity of the breathing airflow in the heated humidifier are often monitored. From the heated humidifier to the patient, the breathing airflow travels through a long breathing tube, and due to the ambient temperature being lower than the temperature of the breathing airflow, heat is lost, resulting in condensation (commonly known as "tubing condensation"). This causes a significant deviation between the temperature and humidity of the breathing airflow reaching the patient's airway and the aforementioned monitored values. Summary of the Invention

[0003] The purpose of this invention is to provide a ventilator system with temperature and humidity monitoring function, which can accurately control the temperature and humidity of the respiratory airflow obtained by the patient during the assisted respiratory therapy using this invention.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A ventilator system with temperature and humidity monitoring function includes a ventilator, a heating and humidifying unit, a Y-tube, a three-way connector, a temperature and humidity sensor, and a temperature and humidity monitoring host. The inhalation port of the ventilator is connected to the air inlet port of the heating humidifier through a pipeline, and the exhalation port of the ventilator is connected to the first branch of the Y-shaped tube through a pipeline. The outlet port of the heating humidifier is connected to the first port of the three-way connector, and the heating humidifier is electrically connected to the ventilator. The second branch of the Y-shaped pipe is connected to the second port of the tee connector via a pipeline; The air inlet of the temperature and humidity sensor is connected to the third port of the three-way connector through a pipeline. An electrically controlled sampling valve is provided on the pipeline between the temperature and humidity sensor and the three-way connector. The temperature and humidity sensor is electrically connected to the temperature and humidity monitoring host, and the electrically controlled sampling valve is electrically connected to the ventilator. The electrically controlled sampling valve opens synchronously with the inspiratory valve in the ventilator, and the opening time of the electrically controlled sampling valve is shorter than the opening time of the inspiratory valve in the ventilator. The temperature and humidity monitoring unit is electrically connected to the ventilator.

[0005] Furthermore, it also includes a drying cylinder, which is connected to the air outlet port of the temperature and humidity sensor via a pipeline.

[0006] Furthermore, the humidity monitor is equipped with a display screen, which is used to display the temperature and humidity information monitored by the temperature and humidity sensor.

[0007] Furthermore, the temperature and humidity monitoring host is also equipped with an alarm component, which is used to issue an alarm when the temperature information and / or humidity information monitored by the temperature and / or humidity sensor exceeds a preset value.

[0008] Furthermore, the alarm component includes a sound generator.

[0009] Furthermore, the alarm includes a light generator.

[0010] Furthermore, the electrically controlled sampling valve is electrically connected to the temperature and humidity monitoring host, and the temperature and humidity monitoring host is wirelessly connected to the ventilator.

[0011] Furthermore, the bottom surface of the temperature and humidity monitoring host is provided with an anti-slip base.

[0012] The beneficial effects of this invention are as follows: 1. This invention provides a ventilator system with temperature and humidity monitoring function. The system obtains the temperature and humidity information of the respiratory airflow in the first branch tube of the Y-shaped tube monitored by the temperature and humidity sensor through the temperature and humidity monitoring host, and feeds it back to the ventilator in real time. This allows for precise regulation of the temperature and humidity of the respiratory airflow obtained by the patient, so that it is always within the optimal physiological range acceptable to the human body. 2. This invention provides a ventilator system with temperature and humidity monitoring function. The system displays the temperature and humidity information monitored by the temperature and humidity sensor on the display screen, and issues an alarm when the temperature and / or humidity information monitored by the temperature and humidity sensor exceeds a preset value through an alarm component, thereby improving treatment safety and nursing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a ventilator system with temperature and humidity monitoring function according to the present invention.

[0014] Labeling instructions: 1. Ventilator, 2. Heated humidifier, 3. Y-tube, 4. Endotracheal tube, 5. T-connector, 6. Electrically controlled sampling valve, 7. Temperature and humidity sensor, 8. Drying cylinder, 9. Temperature and humidity monitoring unit, 10. Anti-slip base. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific examples described herein are merely illustrative and not intended to limit the scope of the invention.

[0016] Example 1: Please see Figure 1 As shown, a ventilator system with temperature and humidity monitoring function includes a ventilator 1, a heating and humidifying unit 2, a Y-tube 3, a three-way connector 5, a temperature and humidity sensor 7, and a temperature and humidity monitoring host 9. The ventilator 1 has an inhalation port and an expiratory port, and is equipped with an inhalation valve and an expiratory valve; the heating and humidifying unit 2 has an air inlet port and an air outlet port; the Y-tube 3 has a main tube and a first branch tube and a second branch tube, the main tube being used to connect to the endotracheal tube 4; the three-way connector 5 has a first port, a second port, and a third port; and the temperature and humidity sensor 7 has an air inlet port and an air outlet port.

[0017] The inhalation port of the ventilator 1 is connected to the air inlet port of the heating humidifier 2 through a tubing, and the exhalation port of the ventilator 1 is connected to the first branch of the Y-shaped tube 3 through a tubing.

[0018] The outlet port of the heated humidifier 2 is connected to the first port of the three-way connector 5, and the heated humidifier 2 is electrically connected to the ventilator 1 (signal exchange between the heated humidifier 2 and the ventilator 1).

[0019] The second branch of Y-shaped pipe 3 is connected to the second port of tee connector 5 via a pipeline.

[0020] The air inlet of the temperature and humidity sensor 7 is connected to the third port of the three-way connector 5 through a pipeline. An electrically controlled sampling valve 6 is installed on the pipeline between the temperature and humidity sensor 7 and the three-way connector 5. The temperature and humidity sensor 7 is electrically connected to the temperature and humidity monitoring host 9, and the electrically controlled sampling valve 6 is electrically connected to the ventilator 1 (signal interaction between the temperature and humidity sensor 7 and the temperature and humidity monitoring host 9, and between the electrically controlled sampling valve 6 and the ventilator 1).

[0021] The operating logic of the electrically controlled sampling valve is as follows: When the patient inhales, the electronically controlled sampling valve 6 opens synchronously with the inspiratory valve in the ventilator 1 to sample the respiratory airflow to the temperature and humidity sensor 7 for temperature and humidity detection of the respiratory airflow. However, the opening time of the electronically controlled sampling valve 6 is shorter than the opening time of the inspiratory valve in the ventilator 1 to avoid affecting the respiratory airflow for a long time.

[0022] The temperature and humidity monitoring host 9 is electrically connected to the ventilator 1 (signal exchange between the temperature and humidity monitoring host 9 and the ventilator 1). The bottom surface of the temperature and humidity monitoring host 9 is equipped with an anti-slip base 10 to make it more stable when placed.

[0023] Specifically, in the above technical solution, the temperature and humidity monitoring host 9 is wired to the temperature and humidity sensor 7 and the electronically controlled sampling valve 6, and the temperature and humidity monitoring host 9 is wirelessly connected to the ventilator 1.

[0024] According to the above design, the temperature and humidity information of the respiratory airflow in the first branch tube of the Y-shaped tube 3 monitored by the temperature and humidity sensor 7 is obtained by the temperature and humidity monitoring host 9 and fed back to the ventilator 1 in real time. In this way, the temperature and humidity of the respiratory airflow obtained by the patient can be precisely controlled so that it is always within the optimal physiological range acceptable to the human body.

[0025] Example 2: Please see Figure 1 As shown, based on Embodiment 1, the humidity monitor 9 is equipped with a display screen, which is used to display the temperature and humidity information monitored by the temperature and humidity sensor 7.

[0026] In addition, the temperature and humidity monitoring host 9 is also equipped with an alarm component, which is used to issue an alarm when the temperature and / or humidity information monitored by the temperature and / or humidity sensor 7 exceeds a preset value.

[0027] In this embodiment, for example, the alarm component includes a sound generator and a light generator.

[0028] According to the above design, the temperature and humidity information monitored by the temperature and humidity sensor 7 is displayed on the screen, and an alarm is issued by the alarm component when the temperature and / or humidity information monitored by the temperature and humidity sensor 7 exceeds the preset value, thereby improving treatment safety and nursing efficiency.

[0029] Example 3: Please see Figure 1 As shown, based on Embodiment 1, it also includes a drying cylinder 8, which is connected to the air outlet port of the temperature and humidity sensor 7 via a pipeline.

[0030] According to the above design, the sampling airflow output from the outlet port of the temperature and humidity sensor 7 will be dried by the drying cylinder 8 to avoid condensation at the outlet port of the temperature and humidity sensor 7 and thus prevent contamination of the environment around the ventilator 1.

[0031] This invention is not limited to the specific embodiments described above. Those skilled in the art can implement this invention using various other specific embodiments based on the content disclosed herein. Therefore, any design that adopts the design structure and concept of this invention and makes some simple changes or modifications falls within the scope of protection of this invention.

Claims

1. A ventilator system with temperature and humidity monitoring function, characterized in that: This includes a ventilator, a heated humidifier, a Y-tube and a three-way connector, a temperature and humidity sensor, and a temperature and humidity monitoring unit; The inhalation port of the ventilator is connected to the air inlet port of the heating humidifier through a pipeline, and the exhalation port of the ventilator is connected to the first branch of the Y-shaped tube through a pipeline. The outlet port of the heating humidifier is connected to the first port of the three-way connector, and the heating humidifier is electrically connected to the ventilator. The second branch of the Y-shaped pipe is connected to the second port of the tee connector via a pipeline; The air inlet of the temperature and humidity sensor is connected to the third port of the three-way connector through a pipeline. An electrically controlled sampling valve is provided on the pipeline between the temperature and humidity sensor and the three-way connector. The temperature and humidity sensor is electrically connected to the temperature and humidity monitoring host, and the electrically controlled sampling valve is electrically connected to the ventilator. The electrically controlled sampling valve opens synchronously with the inspiratory valve in the ventilator, and the opening time of the electrically controlled sampling valve is shorter than the opening time of the inspiratory valve in the ventilator. The temperature and humidity monitoring unit is electrically connected to the ventilator.

2. The ventilator system with temperature and humidity monitoring function according to claim 1, characterized in that: It also includes a drying cylinder, which is connected to the air outlet port of the temperature and humidity sensor via a pipeline.

3. A ventilator system with temperature and humidity monitoring function according to claim 1, characterized in that: The humidity monitor is equipped with a display screen, which displays the temperature and humidity information monitored by the temperature and humidity sensor.

4. A ventilator system with temperature and humidity monitoring function according to claim 1 or 3, characterized in that: The temperature and humidity monitoring host is also equipped with an alarm component, which is used to issue an alarm when the temperature and / or humidity information monitored by the temperature and / or humidity sensor exceeds a preset value.

5. A ventilator system with temperature and humidity monitoring function according to claim 4, characterized in that: The alarm component includes a sound generator.

6. A ventilator system with temperature and humidity monitoring function according to claim 4, characterized in that: The alarm includes a light generator.

7. A ventilator system with temperature and humidity monitoring function according to claim 1, characterized in that: The electrically controlled sampling valve is electrically connected to the temperature and humidity monitoring host, and the temperature and humidity monitoring host is wirelessly connected to the ventilator.

8. A ventilator system with temperature and humidity monitoring function according to any one of claims 1 to 7, characterized in that: The bottom of the temperature and humidity monitoring host is equipped with an anti-slip base.