A breathing machine, and a method for controlling the machine to shut down and to start up

Abstract

The application discloses a breathing machine and a start-up control method and a shutdown control method thereof, which comprises a humidification tank, an oxygen supply channel in communication with the humidification tank, and an air channel in communication with the humidification tank, wherein the oxygen supply channel is provided with an oxygen concentration detector. By arranging the oxygen concentration detector on the oxygen supply channel, the oxygen concentration can be detected in real time. When the oxygen source is turned on, the oxygen concentration in the oxygen supply channel is necessarily not less than 25%, and when the oxygen source is not turned on, the oxygen concentration in the oxygen supply channel is necessarily less than 25%. The oxygen supply of the breathing machine is obtained through the monitored oxygen concentration, and the real-time monitoring of the opening and closing of the oxygen source is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a ventilator, and a shutdown control method and a startup control method thereof. Background Art

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used for respiratory failure caused by various causes, as well as for anesthesia and respiratory management during major surgery, respiratory support therapy, and emergency resuscitation. They hold a crucial position in modern medicine. Ventilators are vital medical devices that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0003] One of the important functions of a ventilator is to supply oxygen to the patient. Usually, the ventilator is connected to an external oxygen source (oxygen concentration is not less than 25%), and then the oxygen is delivered to the patient after humidification and heating. However, when medical staff make operational errors, they often shut down the ventilator without turning off the oxygen source when the ventilator is supplying oxygen, which causes oxygen leakage. Or, when the ventilator needs to turn on the oxygen supply function, they forget to turn on the oxygen source, causing oxygen leakage.

[0004] Therefore, how to provide a ventilator with an oxygen on or off monitoring function has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a ventilator, and a shutdown control method and a startup control method thereof, aiming to solve the problem that the existing ventilator cannot monitor the oxygen on or off function.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] Compared with the prior art, the present invention provides a ventilator, and a shutdown control method and a startup control method thereof, which include: a humidifier; an oxygen supply channel, the oxygen supply channel being connected to the humidifier; and an air channel, the air channel being connected to the humidifier; wherein the oxygen supply channel is provided with an oxygen concentration detector. By providing the oxygen concentration detector on the oxygen supply channel, the oxygen concentration can be detected in real time. When the oxygen source is turned on, the oxygen concentration in the oxygen supply channel must be no less than 25%, and when the oxygen source is not turned on, the oxygen concentration in the oxygen supply channel must be less than 25%. The monitored oxygen concentration can then be used to determine whether the ventilator is supplying oxygen, thereby achieving real-time monitoring of the opening and closing of the oxygen source. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred ventilator provided in the present invention;

[0009] Figure 2 This is a schematic cross-sectional view of the oxygen supply channel of a preferred ventilator provided in the present invention;

[0010] Figure 3 This is a schematic cross-sectional view of a deformed structure of an oxygen supply channel of a preferred ventilator provided in the present invention;

[0011] Figure 4 This is a schematic diagram of the three-dimensional structure of the preferred ventilator provided in the present invention from another perspective;

[0012] Figure 5 This is a flow chart of a preferred shutdown control method based on the ventilator provided in the present invention;

[0013] Figure 6 This is a flow chart of a preferred method for controlling the start-up of the ventilator provided in the present invention;

[0014] Description of reference numerals:

[0015] 10. Respirator; 11. Humidifier; 12. Oxygen supply channel; 13. Air channel; 14. Oxygen concentration detector; 121. Oxygen inlet; 122. Flow stabilizing airway; 123. One-way valve; 124. Pressure regulator; 125. Flow regulator; 126. Oxygen flow meter; 127. Flow stabilizer; 131. Air inlet; 132. Air duct; 133. Blower; 134. Air flow meter; 111. Humidifier body; 112. Three-way air inlet; 113. Air outlet. DETAILED DESCRIPTION

[0016] The present invention provides a ventilator, a shutdown control method thereof, and a startup control method thereof. To make the objectives, technical solutions, and effects of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0017] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used for respiratory failure caused by various causes, as well as for anesthesia and respiratory management during major surgery, respiratory support therapy, and emergency resuscitation. They hold a crucial position in modern medicine. Ventilators are vital medical devices that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0018] One of the important functions of a ventilator is to supply oxygen to the patient. Usually, the ventilator is connected to an external oxygen source (oxygen concentration is not less than 25%), and then the oxygen is delivered to the patient after humidification and heating. However, when medical staff make operational errors, they often shut down the ventilator without turning off the oxygen source when the ventilator is supplying oxygen, which causes oxygen leakage. Or, when the ventilator needs to turn on the oxygen supply function, they forget to turn on the oxygen source, causing oxygen leakage.

[0019] The present invention is based on the problem that ventilators in the prior art do not have an oxygen on / off function, and provides a ventilator, a shutdown control method, and a startup control method thereof. By arranging an oxygen concentration detector on the oxygen supply channel, the oxygen concentration can be detected in real time. When the oxygen source is turned on, the oxygen concentration in the oxygen supply channel must be no less than 25%. When the oxygen source is not turned on, the oxygen concentration in the oxygen supply channel must be less than 25%. Then, the monitored oxygen concentration is used to determine whether the ventilator is supplying oxygen, thereby realizing real-time monitoring of the opening and closing of the oxygen source. Please refer to the following embodiments for details.

[0020] Please refer to Figures 1 to 4 In a first embodiment of the present invention, a ventilator 10 is provided, which includes: a humidification tank 11, an oxygen supply channel 12 and an air channel 13; the oxygen supply channel 12 is connected to the humidification tank 11; the air channel 13 is connected to the humidification tank 11; wherein, the oxygen supply channel 12 is provided with an oxygen concentration detector 14.

[0021] It can be understood that one end of the oxygen supply channel 12 is connected to the oxygen pressure source, and the other end of the oxygen supply channel 12 is connected to the humidification tank 11; one end of the air channel 13 is connected to the air, and the other end of the air channel 13 is connected to the humidification tank 11; by arranging an oxygen concentration detector 14 on the oxygen supply channel 12, the oxygen concentration can be detected in real time. When the oxygen source is turned on, the oxygen concentration in the oxygen supply channel 12 must be no less than 25%; when the oxygen source is not turned on, the oxygen concentration in the oxygen supply channel 12 must be less than 25%; and then the monitored oxygen concentration is used to obtain whether the ventilator 10 is supplying oxygen, thereby realizing real-time monitoring of the opening and closing of the oxygen source.

[0022] In some embodiments, the oxygen supply channel 12 further includes: an oxygen inlet 121, a steady flow airway 122 and a one-way valve 123; one end of the oxygen inlet 121 is connected to the oxygen source; one end of the steady flow airway 122 is connected to the oxygen inlet 121, and the other end of the steady flow airway 122 is connected to the oxygen concentration detector 14; one end of the one-way valve 123 is connected to the other end of the oxygen concentration detector 14, and the other end of the one-way valve 123 is connected to the humidification tank 11.

[0023] It can be understood that by providing a one-way valve 123 between the oxygen concentration detector 14 and the humidification tank 11, the flow direction of oxygen in the oxygen supply channel 12 can be effectively controlled to avoid oxygen backflow, thereby improving the stability of the oxygen concentration detector 14 in detecting oxygen concentration.

[0024] In other embodiments, the oxygen supply channel 12 further includes: an oxygen inlet 121, a pressure regulator 124, a flow regulator 125 and an oxygen flow meter 126 connected in sequence; wherein the oxygen concentration detector 14 is arranged between the oxygen flow meter 126 and the humidification tank 11.

[0025] It can be understood that the ventilator 10 in this embodiment can detect the oxygen on or off status in real time and can also detect the oxygen flow rate.

[0026] In some embodiments, the oxygen supply channel 12 further includes a flow stabilizer 127 , which is disposed between the flow regulator 125 and the flow meter.

[0027] It can be understood that by providing the flow stabilizer 127 on the oxygen supply channel 12 , the distance between the flow regulator 125 and the oxygen flow meter 126 is effectively reduced, thereby providing a guarantee for reducing the volume of the ventilator 10 .

[0028] In other embodiments, the air channel 13 includes: an air inlet 131, an air duct, a blower 133 and an air flow meter 134 connected in sequence; wherein, the air flow meter 134 is connected to the humidification tank 11 at one end away from the blower 133.

[0029] It can be understood that by setting the air flow rate, the oxygen concentration in the humidification tank 11 can be adjusted to meet various oxygen supply requirements.

[0030] In other embodiments, the humidifier tank 11 includes: a humidifier tank 11 body, a three-way air inlet 112 and an air outlet 113; the first end of the three-way air inlet 112 is connected to the humidifier tank 11 body, the second end of the three-way air inlet 112 is connected to the oxygen supply channel 12, and the third end of the three-way air inlet 112 is connected to the air channel 13; the air outlet 113 is connected to the user end.

[0031] It can be understood that the oxygen and air are mixed before entering the humidification tank 11 through the three-way air inlet 112, which provides a guarantee for heating and humidification in the humidification tank 11.

[0032] In other embodiments, a one-way valve 123 is provided between the air outlet 113 and the user end. It is understood that by providing the one-way valve 123 between the air outlet 113 and the user end, the exhaled air from the patient end is effectively prevented from entering the humidification tank 11 body along the air outlet 113 and contaminating the ventilator 10.

[0033] In other embodiments, a disinfection device is further provided on the oxygen supply channel 12 and the air channel 13. It is understood that by providing a disinfection device, the sterility safety of the oxygen supply channel 12 and the air channel 13 is effectively guaranteed, thereby improving the safety of the ventilator 10.

[0034] Please refer to further Figure 5 In a second embodiment of the present invention, a shutdown control method based on the ventilator as described above is further provided, which includes:

[0035] S100, when the ventilator is in operation, if a shutdown operation instruction is detected, the oxygen concentration detector is controlled to detect the current oxygen concentration;

[0036] S200, determining whether the current oxygen concentration is within a preset threshold range;

[0037] S300a, if the current oxygen concentration is within the preset threshold range, the shutdown operation is not performed;

[0038] S300b: If the current oxygen concentration is not within the preset threshold range, execute a shutdown operation.

[0039] It can be understood that the present invention determines whether the oxygen supply valve (oxygen source) of the ventilator is closed by detecting the oxygen concentration when the shutdown operation is performed. If the oxygen concentration is within the preset threshold range (oxygen concentration is not less than 25%), it means that the oxygen supply valve is not closed, and the shutdown operation is not performed, avoiding misoperation and further avoiding the safety hazards caused by oxygen leakage or high-concentration oxygen retention in the ventilator's air inlet.

[0040] Please refer to further Figure 6 In a third embodiment of the present invention, a method for controlling the start-up of the ventilator described above is further provided, which includes:

[0041] S400, when a power-on operation instruction is detected, controlling the oxygen concentration detector to detect the current oxygen concentration;

[0042] S500, determining whether the current oxygen concentration is within a preset threshold range;

[0043] S600a, if the current oxygen concentration is within the preset threshold range, start the preset operation;

[0044] S600b: If the current oxygen concentration is not within the preset threshold range, suspend the preset operation.

[0045] It is understood that the preset operations of the ventilator are: opening the air channel and heating the humidifier tank, as well as operating the disinfection device of the oxygen supply channel and the air channel. The present invention determines whether the oxygen supply is normal by determining whether the current oxygen concentration is within a preset threshold range (oxygen concentration is not less than 25%) when the machine is turned on. When the oxygen supply is normal, other preset operations can be performed. When the oxygen supply is abnormal, other preset operations are suspended to prevent abnormal operation of the ventilator. This avoids the situation where other preset operations are directly initiated when the oxygen supply valve is not open, ensuring the normal operation of the ventilator and extending the service life of the ventilator.

[0046] Compared with the prior art, the present invention provides a ventilator, a shutdown control method thereof, and a startup control method thereof, which include: a ventilator, a shutdown control method thereof, and a startup control method thereof, which include: a humidifier; an oxygen supply channel, the oxygen supply channel being connected to the humidifier; an air channel, the air channel being connected to the humidifier; wherein the oxygen supply channel is provided with an oxygen concentration detector. By providing the oxygen concentration detector on the oxygen supply channel, the oxygen concentration can be detected in real time. When the oxygen source is turned on, the oxygen concentration in the oxygen supply channel must be no less than 25%, and when the oxygen source is not turned on, the oxygen concentration in the oxygen supply channel must be less than 25%. Then, by monitoring the oxygen concentration, it is determined whether the ventilator is supplying oxygen, thereby achieving real-time monitoring of the opening and closing of the oxygen source.

[0047] It should be understood that the application of the present invention is not limited to the above examples. For those skilled in the art, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A ventilator, characterized in that: include: Humidification tank; an oxygen supply channel, the oxygen supply channel being connected to the humidification tank; an air channel, the air channel being in communication with the humidification tank; Wherein, the oxygen supply channel is provided with an oxygen concentration detector; When the ventilator is in operation, if a shutdown operation instruction is detected, the oxygen concentration detector is controlled to detect the current oxygen concentration; whether the current oxygen concentration is within a preset threshold range is determined; if the current oxygen concentration is within the preset threshold range, the shutdown operation is not performed; if the current oxygen concentration is not within the preset threshold range, the shutdown operation is performed; or, When a power-on operation instruction is detected, the oxygen concentration detector is controlled to detect the current oxygen concentration; whether the current oxygen concentration is within the preset threshold range is determined; if the current oxygen concentration is within the preset threshold range, the preset operation is started; if the current oxygen concentration is not within the preset threshold range, the preset operation is suspended.

2. The ventilator according to claim 1, wherein: The oxygen supply channel also includes: an oxygen inlet, one end of which is connected to an oxygen source; a steady flow airway, one end of which is in communication with the oxygen inlet, and the other end of which is in communication with the oxygen concentration detector; A one-way valve, one end of which is connected to the other end of the oxygen concentration detector, and the other end of which is connected to the humidification tank.

3. The ventilator according to claim 1, characterized in that The oxygen supply channel also includes: An oxygen inlet, a pressure regulator, a flow regulator and an oxygen flow meter connected in sequence; Wherein, the oxygen concentration detector is arranged between the oxygen flow meter and the humidification tank.

4. The ventilator according to claim 3, characterized in that The oxygen supply channel also includes: A flow stabilizer is provided between the flow regulator and the oxygen flow meter.

5. The ventilator according to claim 1, characterized in that The air channel comprises: An air inlet, an air duct, a blower and an air flow meter connected in sequence; Wherein, one end of the air flow meter facing away from the blower is connected to the humidification tank.

6. The ventilator according to claim 1, characterized in that The humidification tank comprises: Humidification tank body; a three-way air inlet, wherein a first end of the three-way air inlet is connected to the humidification tank body, a second end of the three-way air inlet is connected to the oxygen supply channel, and a third end of the three-way air inlet is connected to the air channel; An air outlet is communicated with a user end.

7. The ventilator according to claim 6, characterized in that A one-way valve is provided between the air outlet and the user end.

8. The ventilator according to any one of claims 1 to 7, characterized in that: The oxygen supply channel and the air channel are also provided with a disinfection device.

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