Heating and humidifying high-flow oxygen uptake bottle

Abstract

The invention provides a heating and humidifying high-flow oxygen uptake bottle which comprises a humidifying oxygen uptake bottle, and an in-bottle oxygen outlet pipe and a gas passage partition plate are sequentially arranged in a humidifying cavity of the humidifying oxygen uptake bottle from top to bottom. A proper amount of humidifying liquid is arranged in a humidifying bottle cavity, and a closed oxygen humidifying channel is formed between the gas passage partition plate and the liquid level of the humidifying liquid to humidify oxygen flow. A heating structure is arranged at the bottom of the bottle to heat, humidify or heat and disinfect oxygen flow, water and electricity are separated, and comfort and safety of oxygen inhalation are guaranteed; oxygen flow is humidified and heated on the surface of humidifying liquid, the water adding amount is large, the humidifying and heating effects are stable, and safety and reliability are achieved; the oxygen uptake bottle can be disinfected at any time according to needs, and cross infection is avoided.

Description

Technical Field

[0001] The invention relates to the field of medical devices, in particular to a heated and humidified high-flow oxygen inhalation bottle. Background Art

[0002] High-flow oxygen inhalation is of great significance to patients with poor pulmonary ventilation function and has important value in oxygen therapy. It is an important treatment method between mask oxygen inhalation and endotracheal intubation, which can greatly reduce the probability of patients receiving endotracheal intubation. At the same time, high-flow oxygen inhalation can greatly reduce the probability of hypoxemia caused by respiratory depression due to insufficient ventilation during intravenous anesthesia, and has extremely important value in improving the safety of intravenous anesthesia in outpatient clinics or surgeries.

[0003] However, high-flow oxygen inhalation currently relies on expensive high-flow oxygen devices, which require the use of disposable heating tubes and high-flow nasal oxygen cannulas. The cost of single use is high, and it is difficult to popularize in outpatient clinics of large hospitals and small hospitals.

[0004] A Chinese patent has been applied for, application number 202520340498X, and good results have been achieved in clinical use, but its high-flow humidification bottle is still insufficient, mainly for the following reasons: 1. During high-flow oxygen inhalation, only a small amount of humidification liquid can be filled in the humidification bottle to prevent rapid airflow from blowing water droplets into the pipeline; 2. The oxygen flow rate is large, the single water filling volume is small, the humidification water evaporates quickly, and a single water filling can only be used for 2-3 hours, and water needs to be added frequently during use; 3. During gas humidification, high-flow airflow passes through the humidification water, with large splashes and noise; 4. After the amount of humidification liquid in the humidification bottle is reduced, the path of the airflow through the humidification liquid is significantly shortened, and the humidification and heating effect of the oxygen flow is significantly reduced; 5. The heating range fluctuates greatly, and the oxygen inhalation heating temperature cannot be accurately controlled; 6. The humidification bottle cannot be disinfected. According to the rules of the medical industry, the humidification bottle needs to be soaked and disinfected every day, which can not guarantee the disinfection effect and increase the workload of nurses. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the present invention provides a heated humidified high-flow oxygen inhalation bottle, comprising an oxygen outlet pipe and a gas passage baffle arranged in sequence from top to bottom in the humidification chamber of the humidified oxygen inhalation bottle; the gas passage baffle comprises a top baffle and a longitudinal baffle extending in a tortuous manner on the lower side of the top baffle; The lower side of the top partition and the upper end of the longitudinal partition are sealed; the longitudinal partition and the lower side of the top partition or the upper side of the bottom of the humidification bottle are fixedly connected to form an oxygen humidification tank; The humidification bottle is provided with a proper amount of humidification liquid in the cavity below the top partition, and the oxygen outlet of the oxygen outlet pipe in the bottle is located between the top partition and the liquid level of the humidification liquid; the oxygen humidification tank is extended between the lower side of the top partition and the liquid level of the humidification liquid to form a closed oxygen humidification channel from the oxygen outlet to the oxygen outlet of the humidified oxygen inhalation bottle; The humidified oxygen bottle is provided with a heating structure for heating the humidifying liquid.

[0006] Furthermore, the length of the oxygen flow path in the oxygen humidification channel is not less than 10 cm, and the effective oxygen flow area at any position in the oxygen humidification channel is not less than 6 mm².

[0007] Furthermore, the longitudinal partition includes a spiral plate spirally extending from the center to the periphery; or a laminated reciprocating plate annularly reciprocatingly extending from the center to the periphery; or a radial partition plate radially formed from the center to the outside.

[0008] Furthermore, the oxygen outlet pipe inside the bottle, the top partition and the longitudinal partition are integrally formed, and the height of the longitudinal partition is adapted to the distance between the corresponding top partition and the bottom of the humidifying bottle.

[0009] Furthermore, the oxygen outlet pipe inside the bottle and the top partition are integrally formed, and the oxygen outlet of the pipe is located on the lower side of the top partition; the longitudinal partition and the humidifying bottle are integrally formed; a sealing layer is provided on the lower side of the top partition and the upper end of the longitudinal partition is sealed.

[0010] Furthermore, a sealing ring is provided between the outer side wall of the top partition and the inner side wall of the humidifying bottle; The oxygen outlet of the pipe is located in the central area of the lower side of the corresponding top partition, and one end communicating with the oxygen humidification channel forms an oxygen inlet of the humidification channel; an opening is provided at the other end of the top partition corresponding to the oxygen humidification channel to form an oxygen outlet of the humidification channel.

[0011] Furthermore, the heating structure includes a heating cavity provided below the bottom of the humidifying bottle, a heater adaptively provided in the heating cavity, a temperature sensor for sensing and displaying the temperature of the humidifying liquid, a temperature display connected electrically to the temperature sensor, a temperature controller and a power source electrically connected to the heater and the temperature sensor.

[0012] Furthermore, the heater includes an electrothermal film, the temperature sensor includes a temperature sensor, the temperature display includes a display screen controlled by a single-chip microcomputer, the temperature controller includes a heating switch, a disinfection switch and a dual-control switch, and the power source is further configured with a voltage converter.

[0013] Furthermore, the heating structure includes a heating circuit and a disinfection circuit. The heating circuit includes a power source, a heating switch, an electrothermal film, a MOS tube, a temperature display and a power source connected in series; the disinfection circuit includes a power source, the live wire end of the dual-control switch, a disinfection switch, an electrothermal film, the neutral wire end of the dual-control switch and a power source connected in series.

[0014] Furthermore, the temperature controller controls the heater to perform oxygen inhalation heating on the humidifying liquid, and the temperature range of the humidifying liquid is controlled to be 35 - 45 °C; Alternatively, and / or, the thermostat disinfects and heats the humidifying liquid, and the warmer heats the humidifying liquid at regular intervals, controlling the temperature of the humidifying liquid to be 80 - 100 °C for a duration of 5 - 25 min.

[0015] Advantages of the present invention: When high-flow warming and humidifying, it passes through from the upper part of the humidifying liquid, without generating bubble sounds or blowing up water droplets, and the warming and humidifying effect is stable; The humidifying bottle can be filled with enough humidifying liquid at one time to avoid frequent water addition; The warming oxygen inhalation temperature can be accurately regulated through the warming structure feedback loop; By heating and sterilizing the humidifying bottle, the sterilization effect is ensured and the workload of nurses is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the present invention, where a is the front view and b is the internal structure diagram of the humidifying chamber; Figure 2 It is the structure diagram of the first embodiment of the gas passage partition of the present invention, where a is the overall structure diagram, b is the bottom view, c is the front view, and d is the sectional schematic diagram; Figure 3 It is the structure diagram of the second embodiment of the gas passage partition of the present invention, where a is the overall structure diagram, b is the schematic diagram of the top partition structure, c is the schematic diagram of the longitudinal partition, and d is the sectional schematic diagram of the humidifying bottle; Figure 4 It is the structure diagram of three different longitudinal partitions of the present invention, where a is the schematic diagram of the spiral plate structure, b is the schematic diagram of the stacked reciprocating plate structure, and c is the schematic diagram of the radial partition plate structure; Figure 5 It is the front view of the warming chamber of the present invention; Figure 6 It is a circuit schematic diagram of a warming structure of the present invention; In the figure, 1. Humidifying and oxygen inhalation bottle; 11. Humidifying bottle; 12. Humidifying chamber; 13. Oxygen outlet pipe inside the bottle; 14. Pipe oxygen outlet; 15. Bottle oxygen outlet; 2. Warming structure; 21. Warming chamber; 24. Temperature display; 25. Thermostat; 3. Gas passage partition; 31. Top partition; 32. Longitudinal partition; 33. Oxygen humidifying tank; 34. Oxygen humidifying channel; 35. Oxygen outlet of the humidifying channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention and to make the above features, objectives, and advantages of the present invention clearer and more understandable, the present invention will be further described below with reference to the embodiments. The embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0018] Reference Figure 1 、 2 and 3, the humidified high-flow oxygen inhalation bottle of the present invention includes a humidified oxygen inhalation bottle 1; An oxygen outlet pipe 13 inside the bottle and a gas passage partition 3 are sequentially arranged from top to bottom in the humidification chamber 12 of the humidified oxygen inhalation bottle 1; the gas passage partition 3 includes a top partition 31 and a longitudinal partition 32 that meanders and extends on the lower side of the top partition 31.

[0019] The lower side of the top partition 31 and the upper end of the longitudinal partition 32 are sealed; the longitudinal partition 32 and the lower side of the top partition 31 or the upper side of the bottom of the humidification bottle 11 are fixedly connected to form an oxygen humidification tank 33.

[0020] An appropriate amount of humidifying liquid is provided in the cavity of the humidification bottle 11 below the top partition 31, and the oxygen outlet 14 of the oxygen outlet pipe 13 inside the bottle is located between the top partition 31 and the liquid level of the humidifying liquid; the oxygen humidification tank 33 meanders and extends between the lower side of the top partition 31 and the liquid level of the humidifying liquid to form a closed oxygen humidification channel 34 from the oxygen outlet 14 of the pipe to the bottle oxygen outlet 15 of the humidified oxygen inhalation bottle 1.

[0021] The humidified oxygen inhalation bottle 1 is provided with a heating structure 2 for heating the humidifying liquid.

[0022] In the present invention, the structure of the humidified oxygen inhalation bottle 1 is similar to that of a traditional humidified oxygen inhalation bottle, including a standard plug-in interface matching the central oxygen supply port or the oxygen supply port of a compressed oxygen cylinder, a stopcock valve for adjusting the oxygen flow rate; a float-type oxygen flow tube for reading the oxygen flow rate, a humidification bottle 11 for filling the humidifying liquid, and an oxygen outlet pipe 13 inside the bottle for releasing the oxygen flow into the humidifying liquid. A cover body is hermetically arranged at the upper mouth of the humidification bottle 11 to connect with other structures, communicate with the inner cavity of the humidification bottle 11, penetrate and communicate with the side wall of the cover body, and a bottle oxygen outlet 15 is arranged on the outer side of the cover body for connecting an oxygen inhalation tube to supply oxygen to the patient. The difference is that the oxygen flow tube used in the present invention has a measurement range of not less than 0 - 20 L / min, and ranges of 0 - 40 L / min, 0 - 70 L / min, or 0 - 100 L / min can also be selected.

[0023] It should be particularly noted that the humidification chamber 12 is the general name of the cavity formed by the lower cavity of the cover body and the inner cavity of the matching humidification bottle 11. Inside the humidification bottle of a traditional humidified oxygen inhalation bottle, the lower half of the oxygen outlet pipe inside the bottle and the oxygen outlet of the head end extend into the humidifying liquid, the oxygen flow blows into the humidifying liquid through the oxygen outlet of the head end of the oxygen outlet pipe inside the bottle and is released, the oxygen flow is humidified in the humidifying liquid and then escapes, enters the closed humidification chamber, and finally is discharged through the bottle oxygen outlet.

[0024] The humidification principle of the oxygen flow in the present invention is different from that of the traditional humidified oxygen inhalation bottle in that: after an appropriate amount of humidifying liquid is filled in the humidifying bottle 11, the humidifying liquid submerges the vertical partition 32 in the lower half, the oxygen tube outlet 14 is located below the top partition 31, and the oxygen tube outlet 14 is located above the liquid level of the humidifying liquid. The lower side of the top partition 31 and the upper end of the vertical partition 32 are sealed, and it meanders and extends between the lower side of the top partition 31 and the liquid level of the humidifying liquid, forming a relatively long and sealed oxygen humidification channel 34 from the oxygen tube outlet 14 to the bottle oxygen outlet 15 of the humidified oxygen inhalation bottle 1. After the oxygen flow enters the humidified oxygen inhalation bottle 1 and is released at the oxygen tube outlet 14, the oxygen flow meanders and circulates in the oxygen humidification channel 34 formed above the liquid level of the humidifying liquid and below the top partition 31. The oxygen flow carries away the water vapor evaporated from the humidifying liquid, achieving the humidifying effect. The heating structure 2 heats the humidifying liquid through the humidified oxygen inhalation bottle 1, raises the temperature of the evaporated water vapor, and increases the amount of water vapor evaporated from the humidifying liquid; after the oxygen flow contacts the heated liquid level of the humidifying liquid, its temperature rises, and then it mixes with the relatively hot water vapor of the humidifying liquid, achieving the heating effect. The oxygen flow meanders and circulates above the liquid level of the humidifying liquid through the sealed oxygen humidification channel 34, and after being heated and humidified, it reaches the humidification chamber 12 above the top partition 31 and below the cover of the humidifying bottle 11, and finally is discharged through the bottle oxygen outlet 15 to supply oxygen to the patient.

[0025] The key point of the structure of the present invention is: by specially setting the vertical partition 32, the path length of the oxygen humidification channel 34 is extended, thereby strengthening the humidifying and heating effects on the oxygen flow. The vertical partition 32 needs to divide the humidification chamber 12 above the liquid level of the humidifying liquid and below the top partition 31 into an oxygen humidification channel 34 with sufficient length, providing sufficient humidifying and heating conditions for the oxygen flow, and finally connecting the space above the top partition 31, so that the oxygen flows out through the bottle oxygen outlet 15. The top end of the vertical partition 32 is sealed with the lower side of the top partition 31 to prevent the oxygen humidification channel 34 from communicating with the humidification chamber 12 above the top partition 31 and avoid causing a "short circuit" of the oxygen humidification channel 34. The vertical partition 32 meanders and extends below the top partition 31, dividing the space between the lower side of the top partition 31 and the water level of the humidifying liquid into one or several (preferably one) sealed oxygen circulation paths; one end of the path corresponds to the oxygen tube outlet 14, which is the starting point for humidifying and heating the oxygen flow, and the other end of the path communicates with the humidification chamber 12 above the top partition 31, which is the end point for heating and humidifying the oxygen flow; the heated and humidified oxygen flow is finally discharged through the bottle oxygen outlet 15 provided on the cover of the humidifying bottle 11.

[0026] In order to improve the heating efficiency of the oxygen flow, the vertical partition 32 is preferably made of a medical material with good thermal conductivity. After the heating structure 2 heats the humidifying liquid, the heated humidifying liquid can conduct heat to the vertical partition 32. After the temperature of the vertical partition 32 rises, it can conduct heat to the oxygen flow flowing in the oxygen humidification channel 34. The oxygen flow contacts the side wall of the vertical partition 32, further strengthening the heating effect on the oxygen flow.

[0027] Before use, an appropriate amount of humidifying liquid needs to be added to the humidifying bottle 11 to submerge the lower half of the vertical partition 32. However, it is necessary to ensure the height of the liquid level of the humidifying liquid and the lower side surface of the top partition 31, and ensure the gap between adjacent vertical partitions 32 to provide sufficient flow area for the oxygen flow. At the same time, the tube oxygen outlet 14 is preferably arranged below the top partition 31, adjacent to the lower side surface of the top partition 31, so that the liquid level of the humidifying liquid is lower than the position of the tube oxygen outlet 14 to prevent a large amount of water splashes from being generated when the oxygen flow enters the humidifying liquid.

[0028] Compared with the traditional humidifying method, in the present invention, the oxygen flow meanders forward in the oxygen humidifying channel 34 above the liquid level of the humidifying liquid and below the top partition 31. By using the water vapor evaporated after heating the humidifying liquid by the heating structure 2 and mixing it into the oxygen, and the heat conduction of the vertical partition 32 to the oxygen flow, the effects of heating and humidifying are achieved simultaneously. Compared with the traditional humidifying effect, it is more efficient, avoids the generation of a large number of bubbles, has low noise, has a stable humidifying effect, and prevents the humidifying liquid droplets from being directly blown into the oxygen inhalation pipeline by the high-flow air flow.

[0029] Furthermore, in order to ensure the humidifying and heating effects of the oxygen flow, the length of the oxygen flow path in the oxygen humidifying channel 34 is not less than 10 cm, and the optimal length is 20 - 30 cm to ensure that sufficient humidifying liquid vapor enters the oxygen flow and ensure that the oxygen flow is fully heated and humidified. Control the maximum water addition amount of the humidifying liquid and the gap between adjacent vertical partitions 32 to ensure that the effective oxygen flow area at any position in the oxygen humidifying channel 34 is not less than 6 mm² to ensure smooth oxygen flow. Correspondingly, the area of the tube oxygen outlet 14 is not less than 6 mm² to ensure smooth oxygen flow.

[0030] Reference Figure 2 and 3, a sealing ring is provided between the outer side wall of the top partition plate 31 and the inner side wall of the humidifying bottle 11. If the sealing ring is not provided, after the oxygen flows out of the oxygen humidifying channel 34 formed by the vertical partition plate 32 and the liquid level of the humidifying liquid, it directly enters the humidifying cavity 12 outside the vertical partition plate 32 below the top partition plate 31 and flows to the bottle oxygen outlet 15 along the shortest path. After the sealing ring is provided on the outer side wall of the top partition plate 31 and sealed with the inner side wall of the humidifying bottle 11, a sealed channel is formed between the outermost side wall of the vertical partition plate 32 below the top partition plate 31 and the inner wall of the humidifying bottle 11, extending the length of the oxygen humidifying channel 34 and further improving the humidifying and heating effects on the oxygen flow. Correspondingly, a hole should be provided through the top partition plate 31 outside the corresponding vertical partition plate 32, away from the outlet position of the oxygen humidifying channel 34 formed by the vertical partition plate 32, to form the outlet of the oxygen humidifying channel 34, that is, the humidifying channel oxygen outlet 35. The humidifying channel oxygen outlet 35 connects the end of the oxygen humidifying channel 34 and the humidifying cavity 12 above the top partition plate 31, and then connects the bottle oxygen outlet 15 in the humidifying cavity 12 above the top partition plate 31 to supply oxygen to the patient.

[0031] Preferably, the tube oxygen outlet 14 is located in the central area corresponding to the lower side surface of the top partition plate 31, and the vertical partition plate 32 extends tortuously below the top partition plate 31 starting from the center of the top partition plate 31 to form an oxygen humidifying channel 34 with sufficient length; an opening or hole is provided through the wall of the top partition plate 31 at the end of the corresponding oxygen humidifying channel 34 to form the humidifying channel oxygen outlet 35.

[0032] Specifically, there are 3 types of preferably tortuous extension structures of the vertical partition plate 32. Refer to Figure 4 a in, the vertical partition plate 32 includes a spiral plate spirally extending from the center to the periphery; after the oxygen flow enters the oxygen humidifying channel 34, it circulates spirally outward from the tube oxygen outlet 14 at the center below the top partition plate 31, and at the end of the oxygen humidifying tank 33, near the inner wall of the humidifying bottle 11, it flows into the humidifying cavity 12 above the top partition plate 31 through the humidifying channel oxygen outlet 35 provided on the top partition plate 31, and finally is discharged from the bottle oxygen outlet 15 and supplies oxygen to the patient through the connected oxygen inhalation tube.

[0033] Or refer to Figure 4 b in, the vertical partition plate 32 is a laminated reciprocating plate extending annularly and reciprocally from the center of the top partition plate 31 to the periphery; after the oxygen flow enters the oxygen humidifying channel 34, it circulates annularly and reciprocally outward around the center of the top partition plate 31 from the tube oxygen outlet 14 at the center below the top partition plate 31, and at the end of the oxygen humidifying tank 33, near the inner wall of the humidifying bottle 11, it flows into the humidifying cavity 12 above the top partition plate 31 through the humidifying channel oxygen outlet 35 provided on the top partition plate 31, and finally is discharged from the bottle oxygen outlet 15 and supplies oxygen to the patient through the connected oxygen inhalation tube.

[0034] Or refer to Figure 4In the figure, c is a radial partition plate formed by the longitudinal partition plate 32 radiating outward from the center of the top partition plate 31; after the oxygen flow enters the oxygen humidification channel 34, it reciprocally circulates starting from the pipe oxygen outlet 14 at the center below the top partition plate 31, gradually surrounds the pipe oxygen outlet 14, and at the end of the oxygen humidification tank 33, near the inner wall of the humidification bottle 11, it flows into the humidification chamber 12 above the top partition plate 31 through the humidification channel oxygen outlet 35 provided on the top partition plate 31, and finally is discharged from the bottle oxygen outlet 15 to supply oxygen to the patient through the connected oxygen inhalation tube.

[0035] Further, as Figure 2 shown, it is the first embodiment of the gas passage partition plate 3. The in-bottle oxygen outlet pipe 13, the top partition plate 31, and the longitudinal partition plate 32 are integrally formed. The longitudinal partition plate 32 meanders and extends below the top partition plate 31 to form the oxygen humidification tank 33. The height of the longitudinal partition plate 32 is adapted to the distance between the corresponding part of the top partition plate 31 and the bottom of the humidification bottle 11. In this embodiment, there can be a certain gap (the best distance is less than 0.5 mm) between the longitudinal partition plate 32 and the bottom of the humidification bottle 11, which is beneficial to the circulation of the humidifying liquid in the humidification bottle 11. After the humidifying liquid is filled into the inner cavity of the humidification bottle 11, the humidifying liquid submerges the opening at the lowermost end of the oxygen humidification tank 33 formed by the lower side surface of the top partition plate 31 and the longitudinal partition plate 32, sealing the opening of the oxygen humidification tank 33. The liquid level of the humidifying liquid, the side wall of the longitudinal partition plate 32 above the humidifying liquid, and the lower side surface of the top partition plate 31 together form a sealed oxygen humidification channel 34, and the starting point of the oxygen humidification channel 34 is the pipe oxygen outlet 14. The integral formation of the top partition plate 31 and the longitudinal partition plate 32 can also ensure the airtight effect of the lower side surface of the top partition plate 31 and the upper end of the longitudinal partition plate 32, avoiding insufficient sealing at the connection part between the lower side surface of the top partition plate 31 and the upper end of the longitudinal partition plate 32, and avoiding the "short circuit" formed by the connection between the oxygen humidification channel 34 and the humidification chamber 12 above the top partition plate 31.

[0036] Further, referring to Figure 3 , it is the second embodiment of the gas passage partition plate 3 of the present invention. The in-bottle oxygen outlet pipe 13 and the top partition plate 31 are integrally formed, and the pipe oxygen outlet 14 is located at the center position of the lower side surface of the top partition plate 31; the longitudinal partition plate 32 and the humidification bottle 11 are integrally formed; a sealing layer is provided on the lower side surface of the top partition plate 31 and is sealed with the upper end of the longitudinal partition plate 32.

[0037] In this setting, the upper end heights of the entire longitudinal partition 32 need to be at the same level. The height of the longitudinal partition 32 is crucial and should be slightly greater than the distance between the bottom of the humidifying bottle 11 and the sealing layer below the top partition 31 (3 mm is optimal). After the humidifying bottle 11 is assembled with its upper cover, the top of the entire longitudinal partition 32 needs to be tightly fitted with the sealing layer below the top partition 31 to ensure the sealing of the oxygen humidifying channel 34. Optimally, the sealing layer on the lower side of the top partition 31 should be made of a soft elastic material with a certain thickness (5 mm is optimal), such as silica gel, rubber, etc.

[0038] In this structure, the side wall of the longitudinal partition 32 and the upper side surface of the bottom of the humidifying bottle 11 together form a tortuous oxygen humidifying tank 33. After filling with the humidifying liquid, the liquid level of the humidifying liquid, the side wall of the longitudinal partition 32, and the lower side surface of the sealing layer below the top partition 31 together form the oxygen humidifying channel 34. Similarly, the tube oxygen outlet 14 is preferably set at the central position below the top partition 31. Correspondingly, an opening larger than 6 mm that fits the size of the tube oxygen outlet 14 should be provided at the position corresponding to the tube oxygen outlet 14 through the sealing layer below the top partition 31 ² and an opening larger than 6 mm that fits the size of the humidifying channel oxygen outlet 35 should be provided at the position corresponding to the humidifying channel oxygen outlet 35 through the sealing layer below the top partition 31. ² Similarly, a sealing ring can also be provided on the side surface of the top partition 31 to seal with the inner wall of the humidifying bottle 11. Correspondingly, the oxygen humidifying channel oxygen outlet 35 is provided at the position corresponding to the outer side of the top partition 31 through the fitting position.

[0039] The above two structures have similar humidifying and warming effects on the oxygen flow during actual use. The long-term use effect of the first embodiment is more stable. During use, it is necessary to keep the liquid level of the humidifying liquid submerging the opening of the oxygen humidifying tank 33 below the longitudinal partition 32; the second embodiment can be used normally as long as the humidifying liquid is not exhausted, but after long-term use, it may malfunction due to the deformation of the longitudinal partition 32 and the aging of the sealing layer, resulting in the connection between adjacent oxygen humidifying channels 34, causing a short circuit in the oxygen humidifying channel 34 and a decrease in the effective length of the oxygen humidifying channel 34, and a reduction in the warming and humidifying effect.

[0040] Refer to Figure 5 and 6 The warming structure 2 includes a warming cavity 21 provided below the bottom of the humidifying bottle 11, a warmer adaptively provided in the warming cavity 21, a temperature sensor for sensing and displaying the temperature of the humidifying liquid, a temperature display 24 electrically connected to the temperature sensor, a temperature controller 25 electrically connected to the warmer and the temperature sensor, and a power source.

[0041] The heating chamber 21 should be arranged outside the inner cavity of the humidification bottle 11, and the heating chamber 21 and the humidification chamber 12 containing the humidification liquid are isolated by the bottom of the humidification bottle 11, so as to ensure that the heating circuit is isolated from the humidification liquid in the inner cavity of the humidification bottle 11, so as to achieve the water-electricity separation effect and ensure the safety of the circuit. Correspondingly, the humidification bottle 11 should be made of a non-conductive medical material with good thermal conductivity, and the thickness of the bottom thereof is optimally set to 1-2 mm, so as to ensure firmness without affecting the heat conduction effect.

[0042] During daily humidification operations, the thermostat 25 controls the heater to implement oxygen absorption, heating and humidification of the humidification liquid, and controls the temperature range of the humidification liquid to be 35-45°C; the oxygen flow with a lower temperature and the humidification liquid plane with a higher temperature, the side wall of the longitudinal partition 32, the humidification bottle 11 and the lower side of the top partition 31 are in contact and heated, and the water vapor of the humidification liquid with a higher temperature is mixed in to heat and humidify, and then the temperature is lost through the 2.5-4m length of the oxygen supply pipeline. When the oxygen flow reaches the patient's mouth and nose, the temperature is 28-37°C. The larger the oxygen flow, the higher the temperature, and the smaller the oxygen flow, the lower the temperature. When patients inhale a humidified oxygen flow of 28-37°C, they can avoid hypothermia and respiratory irritation caused by cold gas stimulating the patient's respiratory tract, and at the same time avoid the discomfort of the nasal mucosa being too dry caused by the oxygen flow taking away moisture from the respiratory tract.

[0043] Or / and, the temperature controller 25 performs disinfection heating on the humidification liquid, and the heater heats the humidification liquid regularly, controls the temperature of the humidification liquid to be 80-100°C, and lasts for 5-25 minutes, which can ensure the inactivation of bacteria. The disinfection and heating circuit sterilizes the humidification bottle 11 during the idle period, reduces the disinfection and nursing workload of nurses, and avoids cross infection.

[0044] refer to Figure 5 and 6 The heater includes an electric heating film, the temperature sensor includes a temperature sensor, and the temperature display 24 includes a display screen controlled by a single-chip microcomputer. The temperature controller 25 includes a heating switch, and the heating switch adopts a 45°C over-temperature switch. The temperature controller 25 includes a manual disinfection double-control switch. The disinfection switch adopts a 125°C over-temperature switch.

[0045] The power supply is also equipped with a voltage converter. The power supply can be connected to an external power supply through a power interface, and the voltage converter maintains a circuit voltage constant at a fixed value.

[0046] The heating structure 2 includes a heating circuit and a disinfection circuit, and the heating circuit includes a power supply, a heating switch, an electric heating film, a MOS tube, a temperature display 24 and a power supply connected in sequence; The disinfection circuit comprises a power supply, a live wire end of a double-control switch, a disinfection switch, an electric heating film, a neutral wire end of the double-control switch and a power supply which are connected in sequence.

[0047] During daily use, the patient is heated, humidified and oxygenated, and the manual disinfection dual-control switch is in the off state. The single-chip microcomputer detects that the temperature is lower than the set temperature through the temperature sensor, drives the MOS tube to conduct, and current flows through the heating film to generate heat. When the temperature exceeds the set temperature, the single-chip microcomputer drives the MOS tube to close the circuit, the heating film circuit is interrupted, and the heating stops. The 45°C over-temperature switch is used to prevent circuit failure. When the MOS tube fails and cannot be turned off or the temperature sensor is abnormal and causes continuous heating, the 45°C over-temperature switch detects over-temperature and disconnects the heating film circuit to avoid excessive heating temperature of the humidifying fluid and burns, thereby protecting the patient.

[0048] When the product is under maintenance, the disinfection dual-control switch can be turned on. The heating film of the heating circuit continues to heat to above 100°C. When the water is completely evaporated, the temperature is greater than 125°C. The 125°C over-temperature switch disconnects the circuit and the heating film stops heating.

[0049] When inhaling oxygen, the heating circuit is manually started and the heating switch is closed. The heating switch ensures that the temperature of the humidifying liquid is between 35-45°C. In this range, the electric heating film continuously heats the humidifying liquid and continuously maintains the temperature of the humidifying liquid between 35-45°C.

[0050] When the use interval is long, the disinfection circuit is manually started, the double control switch and the disinfection switch are closed, and the temperature of the humidifying liquid is ensured to be between 80-100°C by the disinfection switch. In this range, the electric heating film continues to heat the humidifying liquid and maintains a sufficient length of time to achieve the disinfection function of the humidifying bottle 11. The humidifying liquid temperature should last for at least 30 minutes at 70°C, preferably 30-60 minutes; the humidifying liquid temperature should last for at least 15 minutes at 80°C, and the optimal 20-30 minutes; the humidifying liquid temperature should last for at least 5 minutes at 90-100°C, preferably 8-10 minutes. The preferred solution is to control the humidifying liquid temperature to maintain at a boiling point of 90-100°C for 10 minutes, and to transfer the humidifying liquid temperature to the relevant components for disinfection. At the same time, the high-temperature water vapor fills the entire inner cavity of the humidifying bottle 11, and flows through the temperature transfer during the discharge process of the bottle oxygen outlet 15, so as to achieve the disinfection of the entire humidifying bottle 11 and the bottle oxygen outlet 15.

[0051] In summary, the present invention sets a gas passage baffle 3 in the humidification bottle 11 and a heating structure 2 on the outer side of the bottom of the humidification bottle 11, so that the oxygen flow can be stably heated and humidified during oxygen inhalation, with low noise, no water droplets will be blown out, low cost, and separation of water and electricity. Through the setting of a heating circuit and a safe disinfection circuit, it is convenient to disinfect after use, and can be safely used for full-flow (high, medium and low flow) oxygen inhalation.

[0052] The above embodiments are only illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in this patent application should still be covered by the claims of this patent application.

Claims

1. A heated and humidified high-flow oxygen inhalation bottle, comprising a humidified oxygen inhalation bottle (1), characterized in that: An in-bottle oxygen outlet pipe (13) and a gas passage partition plate (3) are sequentially arranged from top to bottom in the humidification cavity (12) of the humidified oxygen inhalation bottle (1); the gas passage partition plate (3) includes a top partition plate (31) and a longitudinal partition plate (32) that meanders and extends downward on the lower side of the top partition plate (31); The lower side of the top partition plate (31) and the upper end of the longitudinal partition plate (32) are sealed; the longitudinal partition plate (32) and the lower side of the top partition plate (31) or the upper side of the bottom of the humidification bottle (11) are fixedly connected to form an oxygen humidification tank (33); An appropriate amount of humidifying liquid is arranged in the cavity of the humidification bottle (11) below the top partition plate (31), and the tube oxygen outlet (14) of the in-bottle oxygen outlet pipe (13) is located between the top partition plate (31) and the liquid level of the humidifying liquid; the oxygen humidification tank (33) meanders and extends between the lower side of the top partition plate (31) and the liquid level of the humidifying liquid to form a closed oxygen humidification channel (34) from the tube oxygen outlet (14) to the bottle oxygen outlet (15) of the humidified oxygen inhalation bottle (1); The humidified oxygen inhalation bottle (1) is provided with a heating structure (2) for heating the humidifying liquid.

2. The heated and humidified high-flow oxygen inhalation bottle according to claim 1, wherein: The oxygen flow path length of the oxygen humidification channel (34) is not less than 10 cm, and the effective oxygen flow area at any position of the oxygen humidification channel (34) is not less than 6 mm².

3. The heated and humidified high-flow oxygen inhalation bottle according to claim 1, characterized in that: The longitudinal partition plate (32) includes a spiral plate that spirally extends from the center to the periphery; or a laminated reciprocating plate that reciprocates annularly from the center to the periphery; or a radial partition plate that radiates from the center to the outside.

4. The heated and humidified high-flow oxygen inhalation bottle according to claim 1, characterized in that: The in-bottle oxygen outlet pipe (13), the top partition plate (31), and the longitudinal partition plate (32) are integrally formed, and the height of the longitudinal partition plate (32) is adapted to the distance between the corresponding top partition plate (31) and the bottom of the humidification bottle (11).

5. The heated and humidified high-flow oxygen inhalation bottle according to claim 1, characterized in that: The in-bottle oxygen outlet pipe (13) and the top partition plate (31) are integrally formed, and the tube oxygen outlet (14) is located on the lower side of the top partition plate (31); the longitudinal partition plate (32) and the humidification bottle (11) are integrally formed; a sealing layer is provided on the lower side of the top partition plate (31) and is sealed with the upper end of the longitudinal partition plate (32).

6. The heated and humidified high-flow oxygen inhalation bottle according to claim 4, characterized in that: A sealing ring is arranged between the outer side wall of the top partition plate (31) and the inner side wall of the humidification bottle (11); The tube oxygen outlet (14) is located in the central area of the lower side of the corresponding top partition plate (31), communicates with one end of the oxygen humidification channel (34), and forms an oxygen inlet of the humidification channel; an opening is provided at the other end of the top partition plate (31) corresponding to the oxygen humidification channel (34) to form an oxygen outlet (35) of the humidification channel.

7. The heated humidified high-flow oxygen inhalation bottle according to claim 1, characterized in that: The heating structure (2) includes a heating cavity (21) arranged below the bottom of the humidification bottle (11), a heater adaptively arranged in the heating cavity (21), a temperature sensor for sensing and displaying the temperature of the humidifying liquid, a temperature display (24) electrically connected to the temperature sensor, a temperature controller (25) electrically connected to the heater and the temperature sensor, and a power supply.

8. The heated and humidified high-flow oxygen inhalation bottle according to claim 7, characterized in that: The heater includes an electrothermal film, the temperature sensor includes a temperature transducer, the temperature display (24) includes a display screen controlled by a single-chip microcomputer, the temperature controller (25) includes a heating switch, a disinfection switch and a dual-control switch, and the power supply is also equipped with a voltage converter.

9. The heated and humidified high-flow oxygen inhalation bottle according to claim 8, wherein: The heating structure (2) includes a heating circuit and a disinfection circuit. The heating circuit includes a power supply, a heating switch, an electrothermal film, an MOS transistor, the temperature display (24) and the power supply connected in sequence; the disinfection circuit includes a power supply, the live wire end of the dual-control switch, a disinfection switch, an electrothermal film, the neutral wire end of the dual-control switch and the power supply connected in sequence.

10. The heated and humidified high-flow oxygen inhalation bottle according to claim 7, characterized in that: The temperature controller (25) controls the heater to perform oxygen inhalation heating on the humidifying liquid, and the temperature range of the humidifying liquid is controlled to be 35 - 45 °C; Or / and, the temperature controller (25) performs disinfection heating on the humidifying liquid, and the heater heats the humidifying liquid regularly, controlling the temperature of the humidifying liquid to be 80 - 100 °C, and the duration is 5 - 25 min.

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