An inductive oxygen supply tip

Abstract

The utility model discloses an inductive oxygen supply end belongs to medical instrument technical field. The utility model needs to cooperate oxygen supply appearance to use, including spouts oxygen head, surrounds curtain, blood oxygen monitoring subassembly, support, fixer, oxygen pipe, mass flow controller, humidification module, elastic airbag, oxygen supply appearance connector and electronic control assembly. The utility model provides an inductive oxygen supply end, and through blood oxygen monitoring subassembly real -time monitoring user blood oxygen data and feedback to electronic control assembly, and the oxygen output flow rate of mass flow controller is dynamically regulated, realizes the automatic regulation oxygen supply amount according to user real -time blood oxygen level, has the advantages such as improvement oxygen utilization, promotion comfort, avoids the oxygen supply deficiency or excess.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an inductive oxygen supply terminal. Background Technology

[0002] Hypoxia refers to the physiological phenomenon where the body's tissues or organs cannot obtain sufficient oxygen. This phenomenon is prevalent in certain populations, such as residents of high-altitude areas like Tibet, and patients with chronic obstructive pulmonary disease (COPD), postoperative recovery conditions, anemia, sleep apnea syndrome, asthma, pulmonary heart disease, and heart failure. Studies have shown that even without underlying lung or heart diseases, hypoxia can occur in the general population of different ages. Hypoxia can trigger a series of health problems, including fatigue, memory decline, difficulty concentrating, decreased work capacity, insomnia, dizziness, headaches, tinnitus, blurred vision, weakness in the limbs, confusion, cyanosis, slow wound healing, as well as digestive discomfort such as nausea, vomiting, habitual constipation, and stomach bloating, seriously affecting health and quality of life.

[0003] During sleep, the body's conscious control weakens, and its ability to actively regulate oxygen levels decreases, making it a peak period for hypoxia. Therefore, effective oxygen supply during sleep is particularly important. Currently, oxygen supply methods to prevent hypoxia during sleep are mainly divided into the following three categories: (1) Diffuse oxygen supply: The principle is to increase the overall oxygen concentration in a relatively enclosed environment such as a room or cabin to supply oxygen to the human body. However, this method has significant drawbacks: on the one hand, it is difficult to simultaneously ensure the airtightness of the environment and the comfort of the human body during sleep - excessive airtightness can easily lead to insufficient air circulation and poor comfort; on the other hand, a large amount of oxygen is wasted because it cannot be directly used by the human body, resulting in high oxygen supply costs, and the overall oxygen concentration in the environment is still difficult to reach the ideal level.

[0004] (2) Centralized oxygen supply: This method is mainly used in medical settings such as hospitals. It generates oxygen through large-scale oxygen generators and then delivers the oxygen to various oxygen-using terminals. Finally, it provides oxygen to patients with the help of nasal cannulas or ventilators. The disadvantages of this method are: high construction costs, difficulty in system setup and maintenance, and inability to meet the oxygen supply needs of non-medical settings such as homes. In addition, nasal cannulas, ventilators and other devices will generate air pressure and other physical pressure on the human body during use, which can easily cause discomfort to users and make it difficult for them to enter and maintain a stable sleep state.

[0005] (3) Single-point oxygen supply: The principle is similar to that of central oxygen supply, but a small oxygen source is used as the basis for oxygen supply, which can be applied to some home oxygen supply scenarios. However, this method still has obvious defects: on the one hand, oxygen supply-related equipment is prone to causing physical discomfort to the user's respiratory tract; on the other hand, the noise generated near the head area when the equipment is running is relatively large, so it cannot meet the needs of ordinary residents for continuous and comfortable oxygen supply during sleep.

[0006] All three existing oxygen supply methods share a common core problem: they can only provide oxygen at a constant rate and cannot dynamically adjust the oxygen supply based on the actual oxygen needs of different users at different times during sleep. If the oxygen supply is lower than the body's actual oxygen requirement, it will lead to insufficient oxygen supply and fail to effectively alleviate hypoxia symptoms; conversely, if the oxygen supply is higher than the actual oxygen requirement, it may increase the body's oxidative stress level, accelerate cell aging, and also interfere with the user's normal sleep rhythm, causing new health problems.

[0007] In summary, existing oxygen supply technologies for sleep periods are inadequate in terms of adaptability, comfort, economy, and accuracy, making it difficult to meet the needs of ordinary residents (especially those at risk of hypoxia) for efficient, comfortable, and on-demand oxygen supply when sleeping in a non-sealed home environment. Therefore, there is an urgent need for a new type of sensor-based oxygen supply terminal that can solve the above problems. Utility Model Content

[0008] This invention provides an inductive oxygen delivery terminal, designed to work with common home oxygen concentrators and adapt to ordinary, non-sealed home environments. It adjusts the oxygen delivery speed based on the subject's blood oxygen level. The oxygen delivery process is low-noise, provides sufficient oxygen without causing respiratory discomfort, and is suitable for enhancing and regulating local oxygen concentration in the user's breathing zone during sleep, with minimal oxygen waste.

[0009] This utility model provides an inductive oxygen supply terminal for use with an oxygen supply device. The technical solution it adopts is as follows: oxygen spray head, curtain, blood oxygen monitoring component, bracket, fixation device, oxygen tube, mass flow controller, humidification module, elastic air bag, oxygen supply device connector and electronic control component. The oxygen supply device connector is used to connect to the oxygen supply device. The oxygen pipe is connected in sequence to the oxygen supply device connector, the elastic gas bag, the mass flow controller, the humidification module and the oxygen spray head. Oxygen can be transmitted from the oxygen supply device to the oxygen spray head through the oxygen pipe. The bracket and the fixator work together to support the oxygen spray head and fix it at the head of the bed, so that the oxygen spray head is suspended and facing the user's face. The curtain extends outwards around the edge of the oxygen spray head, creating a semi-enclosed area between the oxygen spray head and the user's face. The electronic control component is electrically connected to the blood oxygen monitoring component and the mass flow controller respectively, and can adjust the oxygen output flow rate of the mass flow controller according to the blood oxygen data of the user fed back by the blood oxygen monitoring component. The elastic air bag is used to temporarily store oxygen and assist in the dynamic adjustment of oxygen output; The humidification module is used to humidify the oxygen in the pipeline, improving breathing comfort.

[0010] Furthermore, the oxygen spray head is a conical shower head with rounded edges and a diameter of 40-60 cm; the curtain is 30-40 cm long.

[0011] Furthermore, the oxygen spray head, curtain, oxygen pipe, elastic air bag, and oxygen supply device connector are all made of Teflon.

[0012] Furthermore, the blood oxygen monitoring component is a contact-type blood oxygen testing component, including fingertip, finger sleeve, or wrist pulse oximeters, which can be wirelessly connected to the electronic control component via Bluetooth.

[0013] Furthermore, the blood oxygen monitoring component also includes a non-contact optical blood oxygen testing component, which includes a 940nm near-infrared light emitter and a near-infrared light receiver positioned opposite each other inside the oxygen spray head. The blood oxygen status is determined by emitting near-infrared light to irradiate human skin and receiving the reflected light intensity.

[0014] Furthermore, the inner side of the oxygen tube is smooth, and the inner diameter is 1.5-3 cm; the elastic gas bag adopts a structure of Teflon gas bag wrapped with elastic rubber, the gas storage volume is not less than 30L, and the elastic gas bag is equipped with a pressure-activated outward one-way valve. When the gas storage volume in the bag exceeds 90%, the one-way valve slowly exhausts gas outward.

[0015] Furthermore, the oxygen supply device connector is compatible with the outlet of a circular steel portable oxygen supply device with a diameter of 0.8-1.5 cm. It adopts a structure of soft elastic material combined with a ring sealing clip, which facilitates connection to outlets of different diameters and maintains a tight seal during connection.

[0016] Furthermore, the bracket is made of a bendable and deformable iron alloy material, and its length is adjustable and can maintain its shape after adjustment; the fastener is located at the bottom of the bracket and is fixed to the headboard by compression.

[0017] The beneficial effects of this utility model are: 1. The present invention provides an inductive oxygen supply terminal that monitors the user's blood oxygen data in real time through a blood oxygen monitoring component and feeds it back to an electronic control component, dynamically adjusting the oxygen output flow rate of the mass flow controller, thereby realizing automatic adjustment of the oxygen supply based on the user's real-time blood oxygen level. It has the advantages of improving oxygen utilization, enhancing comfort, and avoiding insufficient or excessive oxygen supply.

[0018] 2. The blood oxygen monitoring component (contact / non-contact) provided by this utility model collects the user's blood oxygen data in real time, and the electronic control component is directly linked to the mass flow controller. When blood oxygen decreases, the oxygen flow rate is automatically increased; when blood oxygen rises, the flow rate is automatically reduced (until it stabilizes for 10-15 minutes or the flow rate is 0), which perfectly adapts to the dynamic changes in the body's oxygen demand during sleep, avoiding the problems of insufficient (unrelieved hypoxia) or excessive (oxidative stress, sleep disturbance) caused by traditional "constant oxygen supply". Attached Figure Description

[0019] For ease of explanation, this utility model is described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the oxygen spray head of this utility model.

[0021] In the diagram: 1. Oxygen supply unit; 2. Oxygen spray head; 3. Curtain; 4. Finger-type pulse oximeter; 5. Near-infrared light emitter; 6. Near-infrared light receiver; 7. Stand; 8. Fixator; 9. Oxygen tubing; 10. Mass flow controller; 11. Elastic air bag; 12. Oxygen supply unit connector; 13. Electronic control components; 14. One-way valve; 15. Annular sealing clamp; 16. Humidification module. Detailed Implementation

[0022] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solution of the present invention. However, the present invention is not limited to these embodiments. Specific details such as particular configurations and components are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] like Figure 1 and Figure 2A specific embodiment of an inductive oxygen supply terminal shown includes an oxygen spray head 2, a curtain 3, a blood oxygen monitoring component, a bracket 7, a fixator 8, an oxygen tube 9, a mass flow controller 10, a humidification module 16, an elastic air bag 11, an oxygen supply device connector 12, and an electronic control component 13. The oxygen supply device connector 12 is used to connect to the oxygen supply device 1. The oxygen tube 9 is sequentially connected to the oxygen supply device connector 12, the elastic air bag 11, the mass flow controller 10, the humidification module 16, and the oxygen spray head 2. Oxygen can be transmitted from the oxygen supply device 1 to the oxygen spray head 2 via the oxygen tube 9. The humidification module 16 is used to humidify the oxygen in the pipeline, improving oxygen quality. High breathing comfort; the bracket 7 cooperates with the fixator 8 to support the oxygen spray head 2 and fix it at the head of the bed, so that the oxygen spray head 2 is suspended and facing the user's face; the curtain 3 extends outward along the edge of the oxygen spray head 2, so that the oxygen spray head 2 and the user's face form a semi-enclosed area; the electronic control component 13 is electrically connected to the blood oxygen monitoring component and the mass flow controller 10 respectively, and can adjust the oxygen output flow rate of the mass flow controller 10 according to the blood oxygen data of the user fed back by the blood oxygen monitoring component; the elastic air bag 11 is used for temporary oxygen storage to assist in the dynamic adjustment of oxygen output.

[0025] Specifically, oxygen is temporarily stored in the elastic air bag 11 from the oxygen supply device 1 via the oxygen supply device connector 12. The mass flow controller 10 adjusts the oxygen flow rate to the oxygen spray head 2 according to electronic instructions. The oxygen spray head 2 diffuses oxygen to the facial area, and the curtain 3 restricts the oxygen diffusion range to form an effective breathing zone. The blood oxygen monitoring component continuously collects physiological data. When a decrease in blood oxygen is detected, the electronic control component 13 increases the opening of the flow controller to increase the oxygen supply; when a rise in blood oxygen is detected, the oxygen supply is gradually reduced. The elastic air bag 11 balances the pipeline pressure by expanding or contracting its volume during sudden changes in flow, ensuring stable flow regulation.

[0026] Specifically, the electronic control component 13 also has the following functions: controlling the device switch, triggering an oxygen deficiency alarm when the oxygen in the elastic air bag 11 continues to disappear for more than a set time, and setting device operating parameters; the device operating parameters include the blood oxygen decrease judgment threshold, the blood oxygen increase judgment threshold, and the oxygen deficiency alarm time interval.

[0027] In other preferred embodiments, the oxygen spray head 2 is a conical shower head with rounded edges and a diameter of 40-60 cm. The curtain 3 is made of a soft material and is 30-40 cm long. Touching the curtain 3 while sleeping will not affect the user's sleep.

[0028] Specifically, the conical, shower-like oxygen nozzle 2, with its gradually expanding structure from top to edge, allows oxygen to diffuse evenly outward from the center, covering the facial breathing area and avoiding the localized airflow concentration problems caused by traditional direct-injection structures. The circular design of the nozzle 2's edge further eliminates the boundary effect of oxygen flow, reducing energy loss during diffusion. The soft material of the curtain 3 allows it to naturally conform to the bed surface when lowered, forming a semi-enclosed oxygen supply space. When the user moves their limbs during sleep, the curtain 3 can elastically deform with the contact force, avoiding the risk of being awakened by rigid collisions. The combined design of the oxygen nozzle 2 and curtain 3, through optimized physical structure, maintains oxygen delivery efficiency while eliminating mechanical interference factors in the sleep environment.

[0029] Specifically, the oxygen spray head 2, curtain 3, oxygen tube 9, elastic gas bag 11, and oxygen supply device connector 12 are all made of Teflon. The oxygen spray head 2 utilizes the chemical inertness of Teflon to prevent reaction with oxygen, ensuring gas purity; the curtain 3 uses the softness of Teflon to reduce friction against the face during sleep; the oxygen tube 9 uses the low-friction inner wall of Teflon to reduce gas flow resistance and improve transmission efficiency; the elastic gas bag 11 uses a Teflon composite structure to enhance resistance to deformation fatigue and extend its service life; and the oxygen supply device connector 12 uses the dimensional stability of Teflon to maintain a tight connection. Using the same material for all components avoids compatibility issues at connections between different materials, thus improving the overall airtightness of the device.

[0030] In other preferred embodiments, the blood oxygen monitoring component is a contact-type blood oxygen testing component, including a fingertip, finger cot, or wrist pulse oximeter, which can be wirelessly connected to the electronic control component 13 via Bluetooth.

[0031] Specifically, when a user enters a sleep state, they can choose to wear the contact pulse oximeter on their fingertip, finger sleeve, or wrist, depending on their individual preference. The fingertip pulse oximeter maintains contact between the sensor and the skin of the fingertip with moderate clamping force, performing high-precision pulse oximetry sampling in the early stages of sleep. The finger sleeve pulse oximeter uses elastic material to evenly distribute contact pressure, maintaining effective monitoring even during limb movements such as turning over. The wrist pulse oximeter uses a reflective detection method to avoid direct pressure on the monitoring site, continuously collecting data during deep sleep. All three types of monitoring devices can transmit pulse oximetry data in real time to the electronic control component 13 via Bluetooth, where the control system dynamically adjusts the oxygen flow rate according to a preset algorithm. When the detected pulse oximetry value is below a set threshold, a control command is fed back to the mass flow controller 10 via the same Bluetooth link, achieving closed-loop adjustment of the oxygen supply parameters.

[0032] Specifically, the blood oxygen monitoring component also includes a non-contact optical blood oxygen testing component, which includes a 940nm near-infrared light emitter 5 and a near-infrared light receiver 6 located at opposite positions inside the oxygen spray head. The blood oxygen status is determined by emitting near-infrared light to irradiate human skin and receiving the reflected light intensity.

[0033] Specifically, near-infrared light emitters 5, symmetrically installed inside the oxygen spray head 2, continuously project 940nm wavelength near-infrared light onto the user's face. The emitters 5 and receivers 6 emit and receive cylindrical 940nm near-infrared light with a diameter of 20cm. This wavelength of light penetrates the epidermis and interacts with hemoglobin in subcutaneous capillaries, causing the reflected light intensity to fluctuate regularly with changes in blood oxygen saturation. The receiver 6 captures the reflected light signal in real time, converts it into an electrical signal through photoelectric conversion, and transmits it to the electronic control component 13. The electronic control component 13 performs spectral analysis on the received light intensity data and, combined with a preset model corresponding to blood oxygen saturation and light absorption characteristics, calculates the real-time blood oxygen value. When the blood oxygen data falls below a set threshold, the electronic control component 13 triggers the mass flow controller 10 to increase the oxygen output flow rate; when the blood oxygen data returns to the normal range, the oxygen flow rate automatically returns to the baseline level. The entire monitoring process requires no additional contact sensors on the human body surface, achieving unrestricted blood oxygen detection entirely through the principle of optical reflection.

[0034] It should be noted that users can choose to use contact pulse oximetry components, non-contact optical pulse oximetry components, or a combination of contact and non-contact optical pulse oximetry components.

[0035] In other preferred embodiments, the oxygen tube 9 has a smooth inner side and an inner diameter of 1.5-3 cm; the elastic gas bag 11 adopts a structure of Teflon gas bag wrapped with elastic rubber, the gas storage volume is not less than 30L, and the elastic gas bag 11 is equipped with a pressure-activated outward one-way valve 14. When the gas storage volume in the bag exceeds 90%, the one-way valve 14 slowly exhausts gas outward.

[0036] Specifically, by optimizing the collaborative working relationship between the oxygen tube 9 and the elastic air bag 11, a complete system for oxygen delivery and buffer regulation is formed. The smooth inner wall design of the oxygen tube 9 effectively reduces oxygen flow resistance, and combined with the suitable tube diameter range, it achieves balanced control of flow rate and pressure. The double-layer composite structure of the elastic air bag 11 ensures the stability of oxygen storage while absorbing fluctuations in oxygen supply flow rate through the elastic deformation of the rubber layer, and forms sufficient buffer space with the preset volume. When the oxygen storage level in the air bag reaches the critical value, the pressure-activated one-way valve 14 automatically opens to release air, avoiding the risk of structural damage caused by pressure accumulation, while maintaining the continuity of oxygen supply flow rate through slow air release.

[0037] Specifically, the oxygen supply device connector 12 is adapted to the outlet of a circular steel portable oxygen supply device with a diameter of 0.8-1.5 cm. It adopts a structure of soft elastic material combined with an annular sealing clip 15, which facilitates connection to outlets of different diameters and maintains a tight seal during connection.

[0038] Specifically, the bracket 7 is made of a bendable and deformable iron alloy material, and its length is adjustable and can maintain its shape after adjustment; the fixator 8 is located at the bottom of the bracket and is fixed to the headboard by compression.

[0039] Specifically, the fixture 8 located at the bottom of the bracket 7 consists of two stainless steel plates with rubber inside. The two stainless steel plates can be continuously squeezed inward by rotating the screw threads to fix them to the headboard, table, or other locations.

[0040] A method for using an induction-type oxygen supply terminal includes the following steps: S1. Assembly and fixing of the device: Connect the oxygen supply device connector 12 to the oxygen supply device 1, and fix the oxygen spray head 2 at the head of the bed through the cooperation of the bracket 7 and the fixing device 8, so that the oxygen spray head 2 is suspended and facing the user's face, and the curtain 3 hangs down naturally to form a semi-enclosed area. S2. Initial parameter setting: Set the oxygen supply speed of oxygen supply device 1 to be slightly higher than the initial flow rate of mass flow controller 10, set the initial flow rate, upper limit of flow rate and flow rate adjustment speed of mass flow controller 10, and set the blood oxygen decrease judgment condition, blood oxygen increase judgment condition and hypoxia alarm time interval. S3. Blood Oxygen Monitoring and Oxygen Regulation: After the device is started, the blood oxygen monitoring component monitors the user's blood oxygen data in real time and feeds it back to the electronic control component 13. If the blood oxygen meets the blood oxygen decrease judgment condition, the electronic control component 13 controls the mass flow controller 10 to continuously increase the flow rate until the blood oxygen decrease phenomenon disappears and does not reappear within 10-15 minutes or the flow rate reaches the upper limit. If the blood oxygen meets the blood oxygen increase judgment condition, the electronic control component 13 controls the mass flow controller 10 to continuously decrease the flow rate until the blood oxygen increase phenomenon disappears and does not reappear within 10-15 minutes or the flow rate drops to 0. S4. Oxygen deficiency alarm trigger: The relative oxygen supply speed between the integral mass flow controller 10 and the oxygen supply device 1 determines whether the oxygen in the elastic air bag 11 is continuously disappearing. If the continuous disappearance time exceeds the set oxygen deficiency alarm time interval, the electronic control component 13 triggers the oxygen deficiency alarm.

[0041] Specifically, this method achieves dynamic oxygen supply regulation by constructing a closed-loop control system. During the device fixing phase, the combination of the suspended oxygen nozzle 2 and the semi-enclosed curtain 3 maintains the local oxygen concentration while avoiding physical interference to users from traditional oxygen supply equipment. During the parameter setting phase, a buffer reserve is formed by establishing a speed difference between the oxygen supply instrument 1 and the flow controller to cope with sudden changes in oxygen demand. During operation, blood oxygen monitoring data triggers a bidirectional flow rate regulation mechanism: when blood oxygen levels drop, the controller increases the oxygen supply according to the set speed gradient until the indicator recovers or reaches the upper limit; when blood oxygen levels rise, the oxygen supply is gradually reduced until the indicator stabilizes or oxygen supply stops. Simultaneously, the input-output balance of the oxygen supply system is continuously monitored through integral calculations, and an alarm mechanism is triggered promptly when a risk of oxygen supply interruption is detected.

[0042] A specific embodiment of an inductive oxygen supply terminal includes an oxygen spray head 2 that is a conical showerhead shape, made of rigid, semi-transparent Teflon material, with rounded edges, a diameter of 50 cm, and a cone height of 6 cm. A curtain 3, made of soft, transparent Teflon material, extends outwards from the edge of the oxygen spray head 2, forming a cylindrical shape with a height of 40 cm. The blood oxygen monitoring component is a contact-type blood oxygen testing component, using a finger-cuff pulse oximeter 4. The finger-cuff pulse oximeter 4 can connect to the electronic control component 13 via Bluetooth, with a battery life of 7 days. A near-infrared light emitter 5 and a near-infrared light receiver 6 can emit and receive 940nm near-infrared light in a cylindrical shape with a diameter of 20 cm. The oxygen tube 9 has a smooth inner wall made of transparent, soft Teflon material, with a diameter of 2 cm. The elastic gas bag 11 is a soft Teflon gas bag covered with elastic rubber, with a maximum volume of 40L. When the internal gas volume exceeds 36L, the pressure check valve 14 installed on the elastic gas bag 11 will open to release gas. The oxygen supply device interface 12 is made of medical-grade rubber. After connecting to the air outlet of the oxygen supply device 1, it is sealed by compression using a ring-shaped sealing clip 15. The bracket 7 is a flexible iron alloy tube with a diameter of 1 cm and a length of 0.6 m, covered with rubber. The fixator 8 located at the bottom of the bracket 7 consists of two stainless steel plates with rubber covering the inside. The two stainless steel plates can be continuously compressed inward by rotating them with threads to fix them to the headboard, table, or other locations.

[0043] The electronic control component 13 connects to the mass flow controller 10, the finger-type pulse oximeter 4, the near-infrared light emitter 5, and the near-infrared light receiver 6, and controls the implementation of the following steps (all parameters can be adjusted as needed through the electronic control component): (1) Connect the oxygen supply device connector 12 to the oxygen supply device 1, and fix the oxygen spray head 2 at the head of the bed through the bracket 7 and the fixer 8, so that the oxygen spray head 2 is suspended and facing the user's face, and the curtain 3 hangs down naturally to form a semi-enclosed area.

[0044] (2) The initial mass flow controller 10 flow rate is set to 1.5L / min, and the oxygen supply device 1 flow rate is set to 2.5L / min (if the user finds that the blood oxygen level changes significantly, the user can manually increase the constant speed before going to bed).

[0045] (3) During sleep, after the finger-type pulse oximeter 4 or near-infrared light receiver 6 feeds back a "blood oxygen decrease" signal, the mass flow controller 10 starts to increase the flow rate at a rate of 0.2 L / min until the flow rate reaches 5 L / min or the "blood oxygen decrease" signal disappears and does not reappear within 10 minutes. The "blood oxygen decrease" signal is: tested once every 1 minute, blood oxygen decreases in 3 consecutive tests, with an average decrease of more than 1%; or decreases to below 90%.

[0046] (4) By integrating the flow rate of oxygen supply device 1, the flow rate of mass flow controller 10, and the time when the gas storage in elastic gas bag 11 reaches 36L, the time when the gas volume in elastic gas bag 11 drops to 0 and lasts for more than 10 minutes can be obtained. When the duration exceeds 10 minutes, the electronic control component 13 will issue an oxygen deficiency alarm.

[0047] (5) During sleep, after the finger-type pulse oximeter 4 or near-infrared light receiver 6 feeds back the "blood oxygen rise" signal, the mass flow controller 10 starts to reduce the flow rate at a rate of 0.2 L / min until the flow rate reaches 0 L / min or the "blood oxygen rise" signal disappears and does not reappear within 10 minutes. The "blood oxygen rise" signal is: tested once every 1 minute, with 3 consecutive blood oxygen rises, and the average rise is more than 1%; or rises to more than 99%.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] Those skilled in the art to which this invention pertains may make various modifications or additions to the specific embodiments described, or adopt similar methods to replace them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. An induction-type oxygen supply terminal, used in conjunction with an oxygen supply device, characterized in that, Includes oxygen spray head, curtain, blood oxygen monitoring components, bracket, fixation device, oxygen tubing, mass flow controller, humidification module, flexible air bag, oxygen supply device connector and electronic control components; The oxygen supply device connector is used to connect to the oxygen supply device. The oxygen pipe is connected in sequence to the oxygen supply device connector, the elastic gas bag, the mass flow controller, the humidification module and the oxygen spray head. Oxygen can be transmitted from the oxygen supply device to the oxygen spray head through the oxygen pipe. The bracket and the fixator work together to support the oxygen spray head and fix it at the head of the bed, so that the oxygen spray head is suspended and facing the user's face. The curtain extends outwards around the edge of the oxygen spray head, creating a semi-enclosed area between the oxygen spray head and the user's face. The electronic control component is electrically connected to the blood oxygen monitoring component and the mass flow controller respectively, and can adjust the oxygen output flow rate of the mass flow controller according to the blood oxygen data of the user fed back by the blood oxygen monitoring component. The elastic air bag is used to temporarily store oxygen and assist in the dynamic adjustment of oxygen output; The humidification module is used to humidify the oxygen in the pipeline, improving breathing comfort.

2. The induction-type oxygen supply terminal according to claim 1, characterized in that, The oxygen spray head is a conical shower head with rounded edges and a diameter of 40-60 cm; the curtain is 30-40 cm long.

3. The induction-type oxygen supply terminal according to claim 1, characterized in that, The oxygen spray head, curtain, oxygen pipe, elastic air bag, and oxygen supply device connector are all made of Teflon.

4. The induction-type oxygen supply terminal according to claim 1, characterized in that, The blood oxygen monitoring component is a contact-type blood oxygen testing component, including fingertip, finger sleeve, or wrist pulse oximeters, which can be wirelessly connected to the electronic control component via Bluetooth.

5. The induction-type oxygen supply terminal according to claim 4, characterized in that, The blood oxygen monitoring component also includes a non-contact optical blood oxygen testing component, which includes a 940nm near-infrared light emitter and a near-infrared light receiver located at opposite positions inside the oxygen spray head. The blood oxygen status is determined by emitting near-infrared light to irradiate human skin and receiving the reflected light intensity.

6. The induction-type oxygen supply terminal according to claim 1, characterized in that, The oxygen tube has a smooth inner side and an inner diameter of 1.5-3 cm. The elastic gas bag is made of Teflon gas bag with an outer elastic rubber structure. The gas storage volume is not less than 30L. The elastic gas bag is equipped with a pressure-activated outward one-way valve. When the gas storage volume in the bag exceeds 90%, the one-way valve slowly exhausts gas outward.

7. The induction-type oxygen supply terminal according to claim 1, characterized in that, The oxygen supply device connector is compatible with the outlet of a circular steel portable oxygen supply device with a diameter of 0.8-1.5 cm. It adopts a structure with soft elastic material and a ring-shaped sealing clip, which makes it easy to connect outlets of different diameters and maintains a tight seal when connected.

8. The induction-type oxygen supply terminal according to claim 1, characterized in that, The bracket is made of a bendable and deformable iron alloy, and its length is adjustable and it can maintain its shape after adjustment; the fastener is located at the bottom of the bracket and is fixed to the headboard by compression.

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