Airway oxygen supply device based on visual pressure grading and manual dynamic control

Abstract

This invention discloses an airway oxygen supply device based on visualized pressure grading and manual dynamic control, comprising a jet gun with a pressure gauge. The pressure gauge dial is divided into green, yellow, and red zones from highest to lowest value. A jet pipe is connected to the output end of the jet gun, and an adjustable oxygen nozzle is located at the end of the jet pipe not connected to the jet gun. A gas delivery tube is connected to the bottom of the jet gun via a pneumatic quick-connect coupling. A gas source regulating valve is connected to the bottom of the gas source regulating valve, and an oxygen connection pipe is connected to the bottom of the oxygen connection pipe. The pressure gauge of this invention is divided into green, yellow, and red zones, corresponding to the safe pressure ranges for infants, children, and adults, respectively. The operator can intuitively determine whether the current pressure is suitable for the patient's age, reducing the risk of misoperation due to improper pressure selection. The gas source regulating valve allows observation of the gas source pressure status.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an airway oxygen supply device based on visual pressure grading and manual dynamic control. Background Technology

[0002] In clinical emergency settings, emergency airway oxygenation is a critical measure to sustain a patient's life, and accurately adjusting the oxygen supply pressure is a core element in ensuring safe and effective treatment. Traditional emergency airway oxygenation devices often rely on the operator's experience to manually adjust the jet pressure, such as through simple switch components. This method of adjustment demands a high level of operator experience, especially in emergency situations, where operators are prone to making pressure adjustment errors due to tension or lack of experience.

[0003] For example, utility model patent CN209827874U discloses a manual oxygen supply device, which includes an oxygen connector, an inlet pipe, a pressure regulating valve, an oxygen switch, a pressure gauge, and an outlet pipe connected in sequence. The inlet end of the oxygen connector is used to connect to an external gas source, and the outlet end of the outlet pipe is used to connect to an artificial ventilation channel to supply oxygen to the patient. The oxygen connector and the inlet pipe are quickly connected by a quick connector, and the central axis of the pressure gauge and the central axis of the outlet end of the oxygen switch form an obtuse angle.

[0004] The aforementioned patent describes a manual airway oxygen supply device that requires extensive operator experience to properly adjust the jet pressure. It lacks intuitive pressure zone guidance, easily leading to excessive pressure, such as infants or young children misusing adult pressure. Furthermore, existing jet switches lack a feedback mechanism, requiring operators to repeatedly observe the pressure gauge for fine-tuning, which is highly inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide an airway oxygen supply device based on visual pressure grading and manual dynamic control. It aims to improve the existing airway oxygen supply system, which relies on the operator's experience to adjust the jet pressure, lacks intuitive pressure zoning guidance, is prone to exceeding pressure limits, and has no feedback mechanism, requiring the operator to repeatedly observe the pressure gauge for fine-tuning.

[0006] This utility model is implemented as follows: An airway oxygen supply device based on visual pressure grading and manual dynamic control includes a jet gun, a pressure gauge on which the pressure gauge dial is divided into green, yellow, and red zones from smallest to largest; a jet pipe is connected to the output end of the jet gun, and an adjustable oxygen nozzle is provided at the end of the jet pipe not connected to the jet gun; a guide tube is connected to the bottom end of the jet gun, and the guide tube is connected to the jet gun via a pneumatic quick connector; a gas source regulating valve is connected to the bottom end of the guide tube, and an oxygen connection pipe is provided at the bottom end of the gas source regulating valve, and an oxygen connector is connected to the bottom end of the oxygen connection pipe.

[0007] Furthermore, the jet gun output end is provided with a connector head, the top of the jet gun is provided with a mounting connector, and the mounting connector is provided with a mounting port in the middle.

[0008] Furthermore, the jet gun has a grip at the bottom rear end, a jet switch along the front end of the grip, a segmented resistance spring between the jet switch and the grip, and a connector at the bottom end of the grip.

[0009] Furthermore, a microprocessor is provided inside the jet switch. The microprocessor is connected to a signal processing module and a micro motor. The signal processing module is connected to a pressure gauge to receive the pressure measured by the pressure gauge. The micro vibration motor is used to provide feedback when the pressure gauge pointer enters different areas.

[0010] Furthermore, the pressure gauge has a pointer on its dial and a threaded connector at its bottom, which is threaded to the mounting port and has a hexagonal body.

[0011] Furthermore, the green, yellow, and red zones on the dial of the pressure gauge correspond to the low-resistance, medium-resistance, and high-resistance zones of the segmented resistance spring, respectively, and the user groups corresponding to the green, yellow, and red zones on the dial of the pressure gauge are, in order, infants, children, and adults.

[0012] Furthermore, the adjustable oxygen nozzle has a sleeve on its side, which is connected to the end of the jet pipe. One end of the adjustable oxygen nozzle has an adjustment head, and the other end has a nozzle.

[0013] Furthermore, the gas source regulating valve is symmetrically provided with two pipe joints on its side, and the pipe joints are provided with an interface in the middle, and the two interfaces are respectively connected to the gas guide pipe and the oxygen connection pipe.

[0014] Furthermore, the oxygen connecting pipe is spring-shaped, with an installation part at the top for connecting to the gas source regulating valve; and a clamp at the bottom for fixing the oxygen connector.

[0015] Furthermore, the oxygen connector has a plug tube on its side, which is inserted into the inside of the oxygen connecting pipe, and the clamp is fastened at the connection between the plug tube and the oxygen connecting pipe; the plug tube has multiple protrusions from top to bottom, and the oxygen connector has a handle and a plug tube at both ends.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model's pressure gauge is divided into green, yellow, and red zones, corresponding to the safe pressure ranges for infants, children, and adults, respectively. Operators can intuitively determine whether the current pressure is suitable for the patient's age, reducing the risk of misoperation due to improper pressure selection. The air source pressure regulating valve allows observation of the air source pressure status, ensuring a stable air supply. Furthermore, the air jet gun's jet switch adopts a segmented tactile design, with different pressure zones corresponding to different pressing resistances. The green low-resistance setting is suitable for the gentle operation needs of infants and young children, while the red high-resistance setting requires clear operational intent to prevent accidental activation of high-pressure areas. Simultaneously, when the pressure enters the red zone, the jet switch triggers a vibration alert, achieving linkage between tactile feedback and pressure zone adjustments, shortening the operator's pressure correction response time and improving adjustment efficiency and accuracy.

[0017] 2. This utility model uses a pneumatic quick-connect coupling to connect the air gun to the air delivery tube. The pneumatic quick-connect coupling is unlocked by pressing, making the connection convenient and efficient. It is resistant to pressure fluctuations, has a low leakage rate, and good airtightness, reducing the time spent on tubing connections and the risk of oxygen leakage during emergency treatment. The oxygen connection tube has a built-in pressure buffer layer to reduce the pressure shock during manual operation, protecting the patient's airway safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the jet gun of this utility model; Figure 3 This is a structural block diagram of the internal structure of the jet switch of this utility model; Figure 4 This is a schematic diagram of the structure of the pressure gauge of this utility model; Figure 5 This is a schematic diagram of the structure of the jet pipe of this utility model; Figure 6 This is a schematic diagram of the air guide tube of this utility model; Figure 7 This is a schematic diagram of the structure of the gas source pressure regulating valve of this utility model; Figure 8 This is a schematic diagram of the structure of the oxygen connecting pipe of this utility model; Figure 9 This is a schematic diagram of the structure of the oxygen connector of this utility model.

[0019] In the diagram: 1. Air gun; 11. Connector; 12. Mounting connector; 13. Mounting port; 14. Air switch; 15. Handle; 16. Connector; 2. Pressure gauge; 21. Pointer; 22. Green zone; 23. Yellow zone; 24. Red zone; 25. Threaded connector; 26. Hexagon; 3. Air pipe; 31. Adjustable oxygen nozzle; 32. Socket; 33. Adjusting head; 34. Nozzle; 4. Air guide tube; 41. Pneumatic quick connector; 5. Air source regulating valve; 51. Pipe connector; 52. Interface; 6. Oxygen connecting pipe; 61. Clamp; 62. Mounting part; 8. Oxygen connector; 71. Insert pipe; 72. Protrusion; 73. Handle; 74. Insert tube. Detailed Implementation

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1 like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, an airway oxygen supply device based on visualized pressure grading and manual dynamic control includes a jet gun 1, with a pressure gauge 2 mounted on the jet gun 1. The jet gun 1 is held by medical personnel to supply oxygen to patients, and the pressure gauge 2 is used to conveniently measure the pressure at the gas output end. The values ​​on the dial of the pressure gauge 2 are divided into green zone 22, yellow zone 23, and red zone 24, from smallest to largest; different zones correspond to different user groups. Furthermore, a jet tube 3 is connected to the output end of the jet gun 1, and an adjustable oxygen nozzle 31 is provided at the end of the jet tube 3 not connected to the jet gun 1; the jet tube 3 and the adjustable oxygen nozzle 31 facilitate the supply of oxygen to patients. The bottom of the air gun 1 is connected to an air delivery tube 4, which is connected to the air gun 1 via a pneumatic quick-connect coupling 41. The bottom of the air delivery tube 4 is connected to a gas source regulating valve 5. The air delivery tube 4 facilitates connection between the gas source regulating valve 5 and the air gun 1. The pneumatic quick-connect coupling 41 facilitates quick assembly and disassembly of the air delivery tube 4. The quick-connect coupling 41 is unlocked by pressing, making connection convenient and efficient, resistant to pressure fluctuations, with a low leakage rate, and good airtightness, reducing the time spent on tubing connections and the risk of oxygen leakage during emergency treatment. The bottom of the gas source regulating valve 5 is equipped with an oxygen connection tube 6, which is connected to an oxygen connector 8. The oxygen connection tube 6 has a built-in pressure buffer layer to reduce pressure shock during manual operation, protecting the patient's airway safety. The oxygen connection tube 6, together with the oxygen connector 8, facilitates connection to a gas source.

[0022] like Figure 2 and Figure 3As shown, the output end of the jet gun 1 is equipped with a connector 11, which facilitates the connection of the jet pipe 3 to the jet gun 1. The top of the jet gun 1 is equipped with a mounting connector 12, and the middle of the mounting connector 12 has a mounting port 13. The fit between the mounting connector 12 and the mounting port 13 facilitates the installation and removal of the pressure gauge 2. The bottom rear end of the jet gun 1 is equipped with a handle 15, which facilitates gripping and use of the jet gun 1. A jet switch 14 is located along the front end of the handle 15, which facilitates the release of gas from the jet gun 1. A segmented resistance spring is provided between the jet switch 14 and the handle 15. This segmented resistance spring allows for different resistance feedback in different areas of the pressure gauge 2. For example, when the pressure gauge 2 moves from the green zone 22 to the yellow zone 23, the resistance of the jet switch 14 increases sharply. This feedback is provided to medical personnel, allowing them to know which pressure zone the pressure has entered even without visually inspecting the pressure gauge 2. The grip 15 has a connector 16 at its bottom, which facilitates connection between the grip 15 and the pneumatic quick-connect fitting 41 of the air duct 4. A microprocessor is located inside the jet switch 14, connected to a signal processing module and a micro motor. The signal processing module is connected to the pressure gauge 2 to receive the pressure measured by the gauge; the micro vibration motor provides feedback when the pointer 21 of the pressure gauge 2 enters different zones. The jet gun 1 has a through-flow gas channel, one end connected to the oxygen connection pipe 6 (via the pneumatic quick-connect fitting 41), and the other end leading to the adjustable nozzle at the output end. The inner wall of the gas channel is precision polished to reduce airflow resistance. A valve assembly is installed on the gas channel, located in the middle section, consisting of a valve seat, valve core, and return spring. The valve seat is fixed inside the gas channel and has a circular valve port in the center to control the gas flow area. The valve core is directly connected to the push rod of the jet switch 14, and the valve port is opened and closed through linear motion. Under normal conditions, the return spring presses the valve core against the valve seat, keeping the valve closed. Only when the jet switch 14 is pressed is the return spring compressed, opening the valve core and valve seat, thus opening the valve. In this application, the return spring is a segmented resistance spring, consisting of three sets of springs with different elastic coefficients (corresponding to green, yellow, and red pressure zones): Green zone 22 spring (low resistance): small elastic coefficient, corresponding to the infant pressure range (0-0.1MPa), with a short pressing stroke; Yellow zone 23 spring (medium resistance): medium elastic coefficient, corresponding to the child pressure range (0.1-0.25MPa), with a moderate pressing stroke; Red zone 24 spring (high resistance): large elastic coefficient, corresponding to the adult pressure range (0.25-0.4MPa), with the longest pressing stroke.Furthermore, the jet switch 14 is equipped with a storage battery or dry cell battery to power the microprocessor, signal processing module, and micro motor, thereby enabling vibration feedback. The pressure gauge 2 in this application is located downstream of the valve assembly to monitor the pressure of the ejected gas in real time. The pressure gauge 2 is an electronic pressure gauge, and it is connected to the microprocessor inside the jet switch 14 via wired or wireless means, so that the data measured by the pressure gauge 2 can be fed back to the microprocessor, thereby facilitating vibration feedback based on the pressure data.

[0023] like Figure 4 As shown, the pressure gauge 2 has a pointer 21 on its dial, which is used to easily measure pressure. The bottom of the pressure gauge 2 has a threaded connector 25, which is threaded into the mounting port 13, facilitating the assembly, disassembly, and use of the pressure gauge 2. The threaded connector 25 has a hexagonal body 26, which facilitates the turning of the pressure gauge 2, making it easy to use. The green zone 22, yellow zone 23, and red zone 24 on the dial of the pressure gauge 2 correspond to the low resistance, medium resistance, and high resistance zones of the segmented resistance spring, respectively. The user groups corresponding to the green zone 22, yellow zone 23, and red zone 24 on the dial of the pressure gauge 2 are infants, children, and adults, respectively.

[0024] like Figure 5 As shown, the adjustable oxygen nozzle 31 has a sleeve 32 on its side, which connects to the end of the air jet pipe 3, facilitating the use of the adjustable oxygen nozzle 31. One end of the adjustable oxygen nozzle 31 has an adjustment head 33 for easily adjusting the oxygen output. The other end has a nozzle 34 for easily dispensing oxygen.

[0025] like Figure 7 As shown, the gas source regulating valve 5 has two symmetrical pipe joints 51 on its side. The pipe joints 51 facilitate the connection of the gas source regulating valve 5 to the gas guide pipe 4 and the oxygen connection pipe 6. The pipe joints 51 have an interface 52 in the middle, and the two interfaces 52 are connected to the gas guide pipe 4 and the oxygen connection pipe 6 respectively.

[0026] Example 2 like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, an airway oxygen supply device based on visualized pressure grading and manual dynamic control includes a jet gun 1, with a pressure gauge 2 mounted on the jet gun 1. The jet gun 1 is held by medical personnel to supply oxygen to patients, and the pressure gauge 2 is used to conveniently measure the pressure at the gas output end. The values ​​on the dial of the pressure gauge 2 are divided into green zone 22, yellow zone 23, and red zone 24, from smallest to largest; different zones correspond to different user groups. Furthermore, a jet tube 3 is connected to the output end of the jet gun 1, and an adjustable oxygen nozzle 31 is provided at the end of the jet tube 3 not connected to the jet gun 1; the jet tube 3 and the adjustable oxygen nozzle 31 facilitate the supply of oxygen to patients. The bottom of the air gun 1 is connected to an air delivery tube 4, which is connected to the air gun 1 via a pneumatic quick-connect coupling 41. The bottom of the air delivery tube 4 is connected to a gas source regulating valve 5. The air delivery tube 4 facilitates connection between the gas source regulating valve 5 and the air gun 1. The pneumatic quick-connect coupling 41 facilitates quick assembly and disassembly of the air delivery tube 4. The quick-connect coupling 41 is unlocked by pressing, making connection convenient and efficient, resistant to pressure fluctuations, with a low leakage rate, and good airtightness, reducing the time spent on tubing connections and the risk of oxygen leakage during emergency treatment. The bottom of the gas source regulating valve 5 is equipped with an oxygen connection tube 6, which is connected to an oxygen connector 8. The oxygen connection tube 6 has a built-in pressure buffer layer to reduce pressure shock during manual operation, protecting the patient's airway safety. The oxygen connection tube 6, together with the oxygen connector 8, facilitates connection to a gas source.

[0027] like Figure 2 and Figure 3As shown, the output end of the jet gun 1 is equipped with a connector 11, which facilitates the connection of the jet pipe 3 to the jet gun 1. The top of the jet gun 1 is equipped with a mounting connector 12, and the middle of the mounting connector 12 has a mounting port 13. The fit between the mounting connector 12 and the mounting port 13 facilitates the installation and removal of the pressure gauge 2. The bottom rear end of the jet gun 1 is equipped with a handle 15, which facilitates gripping and use of the jet gun 1. A jet switch 14 is located along the front end of the handle 15, which facilitates the release of gas from the jet gun 1. A segmented resistance spring is provided between the jet switch 14 and the handle 15. This segmented resistance spring allows for different resistance feedback in different areas of the pressure gauge 2. For example, when the pressure gauge 2 moves from the green zone 22 to the yellow zone 23, the resistance of the jet switch 14 increases sharply. This feedback is provided to medical personnel, allowing them to know which pressure zone the pressure has entered even without visually inspecting the pressure gauge 2. The grip 15 has a connector 16 at its bottom, which facilitates connection between the grip 15 and the pneumatic quick-connect fitting 41 of the air duct 4. A microprocessor is located inside the jet switch 14, connected to a signal processing module and a micro motor. The signal processing module is connected to the pressure gauge 2 to receive the pressure measured by the gauge; the micro vibration motor provides feedback when the pointer 21 of the pressure gauge 2 enters different zones. The jet gun 1 has a through-flow gas channel, one end connected to the oxygen connection pipe 6 (via the pneumatic quick-connect fitting 41), and the other end leading to the adjustable nozzle at the output end. The inner wall of the gas channel is precision polished to reduce airflow resistance. A valve assembly is installed on the gas channel, located in the middle section, consisting of a valve seat, valve core, and return spring. The valve seat is fixed inside the gas channel and has a circular valve port in the center to control the gas flow area. The valve core is directly connected to the push rod of the jet switch 14, and the valve port is opened and closed through linear motion. Under normal conditions, the return spring presses the valve core against the valve seat, keeping the valve closed. Only when the jet switch 14 is pressed is the return spring compressed, opening the valve core and valve seat, thus opening the valve. In this application, the return spring is a segmented resistance spring, consisting of three sets of springs with different elastic coefficients (corresponding to green, yellow, and red pressure zones): Green zone 22 spring (low resistance): small elastic coefficient, corresponding to the infant pressure range (0-0.1MPa), with a short pressing stroke; Yellow zone 23 spring (medium resistance): medium elastic coefficient, corresponding to the child pressure range (0.1-0.25MPa), with a moderate pressing stroke; Red zone 24 spring (high resistance): large elastic coefficient, corresponding to the adult pressure range (0.25-0.4MPa), with the longest pressing stroke.Furthermore, the jet switch 14 is equipped with a storage battery or dry cell battery to power the microprocessor, signal processing module, and micro motor, thereby enabling vibration feedback. The pressure gauge 2 in this application is located downstream of the valve assembly to monitor the pressure of the ejected gas in real time. The pressure gauge 2 is an electronic pressure gauge, and it is connected to the microprocessor inside the jet switch 14 via wired or wireless means, so that the data measured by the pressure gauge 2 can be fed back to the microprocessor, thereby facilitating vibration feedback based on the pressure data.

[0028] like Figure 4 As shown, the pressure gauge 2 has a pointer 21 on its dial, which is used to easily measure pressure. The bottom of the pressure gauge 2 has a threaded connector 25, which is threaded into the mounting port 13, facilitating the assembly, disassembly, and use of the pressure gauge 2. The threaded connector 25 has a hexagonal body 26, which facilitates the turning of the pressure gauge 2, making it easy to use. The green zone 22, yellow zone 23, and red zone 24 on the dial of the pressure gauge 2 correspond to the low resistance, medium resistance, and high resistance zones of the segmented resistance spring, respectively. The user groups corresponding to the green zone 22, yellow zone 23, and red zone 24 on the dial of the pressure gauge 2 are infants, children, and adults, respectively.

[0029] like Figure 5 As shown, the adjustable oxygen nozzle 31 has a sleeve 32 on its side, which connects to the end of the air jet pipe 3, facilitating the use of the adjustable oxygen nozzle 31. One end of the adjustable oxygen nozzle 31 has an adjustment head 33 for easily adjusting the oxygen output. The other end has a nozzle 34 for easily dispensing oxygen.

[0030] like Figure 7 As shown, the gas source regulating valve 5 has two symmetrical pipe joints 51 on its side. The pipe joints 51 facilitate the connection of the gas source regulating valve 5 to the gas guide pipe 4 and the oxygen connection pipe 6. The pipe joints 51 have an interface 52 in the middle, and the two interfaces 52 are connected to the gas guide pipe 4 and the oxygen connection pipe 6 respectively.

[0031] like Figure 8 As shown, the oxygen connecting pipe 6 is spring-shaped, allowing it to be pulled within a certain range. The top of the oxygen connecting pipe 6 has a mounting part 62 for connecting to the gas source regulating valve 5; the bottom of the oxygen connecting pipe 6 has a clamp 61 for securing the oxygen connector 8.

[0032] like Figure 9As shown, the oxygen connector 8 has a plug tube 71 on its side, which inserts into the inside of the oxygen connecting pipe 6, facilitating the assembly, disassembly, and use of the oxygen connector 8. A clamp 61 is secured at the connection point between the plug tube 71 and the oxygen connecting pipe 6. The plug tube 71 has multiple protrusions 72 from top to bottom, ensuring a good seal between the plug tube 71 and the oxygen connecting pipe 6. The oxygen connector 8 has a handle 73 and a plug tube 74 at each end. The handle 73 facilitates operation of the oxygen connector 8, while the plug tube 74 facilitates connection to an external oxygen source.

[0033] Working Principle: During use, first adjust the air source pressure using the air source pressure regulating valve. The dial of the air source regulating valve 5 displays the air source pressure in real time, ensuring it remains within the safe range (0.2-0.6 MPa). The pressure gauge 2 on the air gun 1 visually displays the current pressure range through three-color zones and differences in scale line width. Based on the patient's age, the operator selects the appropriate pressure setting: adjust the air jet switch 14 to the green zone 22 (low resistance), where the output pressure is limited to the infant safety zone (0-0.1 MPa); adjust to the yellow zone 23, corresponding to the child safety zone (0.1-0.25 MPa); adjust to the red zone 24 (high resistance), corresponding to the adult safety zone (0.25-0.4 MPa). When the air jet switch 14 is pressed, the resistance of the air jet switch 14 will increase sharply when the pointer 21 of the pressure gauge 2 crosses a zone. For example, when the pointer 21 of the pressure gauge 2 moves from the green zone 22 to the yellow zone 23, the resistance of the air jet switch 14 will increase sharply. With continued pressing of the air jet switch 14, the resistance will continue to rise. When the pointer 21 of the pressure gauge 2 moves from the yellow zone 23 to the red zone 24, the resistance of the air jet switch 14 will increase sharply again on top of the previous resistance. Furthermore, when the pressure pointer 21 enters the red zone, the air jet switch 14 will trigger a vibration alert (frequency 3Hz, lasting 0.5 seconds) to remind the operator of the risk of exceeding the pressure limit. The pneumatic quick connector 41 supports quick one-handed assembly and disassembly, and the pressure buffer layer of the oxygen connection tube 6 effectively reduces pressure shock, ensuring the safety of the patient's airway.

[0034] Data Verification: The technical effects of this utility model were verified through manual adjustment efficiency tests and tactile feedback effectiveness tests. In a scenario simulating the switch from adult pressure to infant pressure, after adopting this design, the average adjustment time was reduced from 18.7 seconds to 6.2 seconds, the error rate was reduced from 22% to 3%, and the number of times the pressure gauge 2 pointer 21 exceeded the limit was ≤1 per operation. When the pressure gauge 2 pointer 21 entered the red zone, the vibration prompt trigger rate of the jet switch 14 was 100%, and the operator's correction action response time was ≤1 second, which significantly improved the operation efficiency and accuracy.

[0035] In summary, compared with existing technologies, the pressure gauge 2 of this application is divided into green zone 22, yellow zone 23, and red zone 24, corresponding to the safe pressure ranges for infants, children, and adults, respectively. Operators can intuitively determine whether the current pressure is suitable for the patient's age, reducing the risk of misoperation due to improper pressure selection. The gas source pressure regulating valve allows observation of the gas cylinder pressure status, ensuring a stable gas supply. Furthermore, the jet switch 14 of the jet gun 1 adopts a segmented tactile design, with different pressure zones corresponding to different pressing resistances. The green low-resistance setting is suitable for the gentle operation needs of infants and young children, while the red high-resistance setting requires clear operational intent to prevent accidental contact with high-pressure areas. Simultaneously, when the pressure enters the red zone, the jet switch 14 triggers a vibration alert, realizing the linkage between tactile feedback and pressure zone adjustments, shortening the operator's pressure correction response time, and improving adjustment efficiency and accuracy.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An airway oxygen supply device based on visualized pressure grading and manual dynamic control, comprising a jet gun, characterized in that, The jet gun is equipped with a pressure gauge, and the pressure gauge dial is divided into green, yellow and red zones from small to large. The output end of the jet gun is connected to a jet pipe, and the end of the jet pipe not connected to the jet gun is equipped with an adjustable oxygen nozzle. The jet gun is connected to a gas guide tube, the gas guide tube is connected to a gas source regulating valve, the gas source regulating valve is connected to an oxygen connection pipe, and the oxygen connection pipe is connected to an oxygen connector.

2. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 1, characterized in that, The jet gun output end is provided with a connector head, the top of the jet gun is provided with a mounting connector, and the mounting connector is provided with a mounting port in the middle.

3. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 2, characterized in that, The jet gun has a grip at the bottom rear end, a jet switch is provided along the front end of the grip, a segmented resistance spring is provided between the jet switch and the grip, and a connector is provided at the bottom end of the grip.

4. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 2, characterized in that, The pressure gauge has a pointer on its dial and a threaded connector at the bottom. The threaded connector is threaded to the mounting port and has a hexagonal body on it.

5. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 3, characterized in that, The green, yellow, and red zones on the dial of the pressure gauge correspond to the low, medium, and high resistance zones of the segmented resistance spring, respectively. The user groups corresponding to the green, yellow, and red zones on the dial of the pressure gauge are, in order, infants, children, and adults.

6. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 1, characterized in that, The adjustable oxygen nozzle has a sleeve on its side, which is connected to the end of the jet pipe. One end of the adjustable oxygen nozzle has an adjustment head, and the other end has a nozzle.

7. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 1, characterized in that, The gas source regulating valve has two pipe joints symmetrically arranged on its side. Each pipe joint has an interface in the middle, and the two interfaces are respectively connected to the gas guide pipe and the oxygen connection pipe.

8. The airway oxygen supply device based on visual pressure grading and manual dynamic control according to claim 1, characterized in that, The oxygen connecting pipe is spring-shaped, with an installation part at the top for connecting to the gas source regulating valve; the bottom of the oxygen connecting pipe is equipped with a clamp for fixing the oxygen connector.

9. The airway oxygen supply device based on visualized pressure grading and manual dynamic control according to claim 8, characterized in that, The oxygen connector has a plug tube on its side, which is inserted into the inside of the oxygen connecting pipe. The clamp is tied at the connection between the plug tube and the oxygen connecting pipe. The plug tube has multiple protrusions from top to bottom, and the oxygen connector has a handle and a plug tube at both ends.

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