Ventilation flow switchable nasal oxygen delivery device and method

Abstract

The present invention discloses a ventilation flow switchable nasal oxygen delivery device and method, including: a nasal plug component structure; a nasal oxygen main pipe structure, which is connected and arranged with the input end of the nasal plug component structure; a three-way joint structure, wherein the first end is connected and arranged with the nasal oxygen main pipe structure, and the second end of the three-way joint structure is connected and arranged with the oxygen supply pipe structure, and the oxygen supply pipe structure supplies oxygen to the nasal oxygen main pipe structure through the three-way joint structure; a nasal oxygen branch pipe structure, which is connected and arranged with the third end of the three-way joint structure, and the nasal oxygen branch pipe structure is fixedly connected with a docking spring pressure structure; a docking top support structure, which is fixedly set on the nasal plug component structure, and the docking top support structure and the docking spring pressure structure are detachably connected and arranged. The technical problems in the prior art that when using a nasal oxygen tube to adjust the oxygen amount, increasing the oxygen output power will cause the airflow to accelerate, which is not conducive to the recovery of the disease, and directly replacing a large-flux nasal oxygen tube will easily lead to waste.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a ventilation flow switchable nasal oxygen delivery device and method. Background Art

[0002] At present, oxygen supply is one of the most commonly used auxiliary means of rescue or treatment in hospitals, and the nasal oxygen cannula is an efficient auxiliary oxygen supply device used by hospitals for patients with dyspnea and those who need oxygen therapy. It is an oxygen supply pipeline connecting the oxygen inhaler and the patient's nasal cavity, and occupies an important position in medical emergency.

[0003] In the prior art, the working principle of a nasal oxygen cannula is generally to connect one end to an oxygen container and to insert the other end into the patient's nostrils, so that the oxygen in the oxygen container can flow effectively through the cannula for inhalation by the patient.

[0004] However, currently, different patients or various factors such as nasopharyngeal diseases in patients have different oxygen inhalation requirements, and the discovery of insufficient oxygen is usually after the patient is initially connected to and uses a nasal oxygen cannula. At this time, when the oxygen volume is increased directly by increasing the oxygen output power, the oxygen flow rate inside the initial pipeline will be accelerated, which is not conducive to recovery under special circumstances and may even cause secondary damage. When a large-flux nasal oxygen cannula is directly replaced, disposable nasal oxygen canns will be wasted, which is not conducive to controlling medical costs. Summary of the invention

[0005] To this end, the present invention provides a ventilation flow switchable nasal oxygen delivery device and method to solve the technical problems in the prior art that when using a nasal oxygen tube to adjust the oxygen amount, increasing the oxygen output power will cause the airflow to accelerate, which is not conducive to disease recovery, and directly replacing a large-flow nasal oxygen tube will easily lead to waste.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A ventilation flow switchable nasal oxygen delivery device, comprising:

[0008] Nasal plug component structure;

[0009] A nasal oxygen main pipe structure, one end of which is connected to the input end of the nasal plug assembly structure;

[0010] A three-way joint structure, wherein a first end is connected to the other end of the nasal oxygen main pipe structure, and a second end of the three-way joint structure is connected to one end of the oxygen supply pipe structure, and the oxygen supply pipe structure supplies oxygen to the nasal oxygen main pipe structure through the three-way joint structure;

[0011] A nasal oxygen branch tube structure, one end of which is connected to the third end of the three-way joint structure, and the other end of the nasal oxygen branch tube structure is fixedly equipped with a docking spring pressure structure;

[0012] The docking supporting structure is fixedly assembled at the input end of the nasal plug assembly structure, and the docking supporting structure and the docking spring-pressing structure are detachably connected and arranged.

[0013] On the basis of the above technical solution, the present invention is further described as follows:

[0014] As a further embodiment of the present invention,

[0015] The nasal plug assembly structure includes a nasal plug body and an air buffer cavity seat connected to the nasal plug body;

[0016] The nasal oxygen main pipe structure is connected to the input end of the buffer chamber seat;

[0017] The butt joint supporting structure is fixedly assembled at the input end of the buffer chamber seat.

[0018] As a further embodiment of the present invention,

[0019] The butt-jointed spring-pressing structure comprises a butt-jointed base tube body, a spring-pressing arc plate and a first elastic sealing layer;

[0020] One end of the docking base tube body along its extension direction is connected to the other end of the nasal oxygen branch tube structure in a closed manner;

[0021] The elastic arc plates are provided with a plurality of strips, one end of each of the elastic arc plates is respectively fixedly connected to the other end of the docking base tube body along its extension direction, and the ends of the plurality of elastic arc plates away from the docking base tube body are aggregated and closed in an initial state;

[0022] The first elastic sealing layer is provided as a first cover structure arranged along a circumference, and the first elastic sealing layer is correspondingly and fixedly provided on the inner side of a plurality of the elastic pressure arc plates in a closed manner, and one end of the first elastic sealing layer is connected to the other end of the docking base tube body in a closed manner;

[0023] The docking support structure comprises a positioning ring seat, an elastic folding ring sleeve, a lever opening and closing plate, a support folding plate, a second elastic sealing layer and a lever fulcrum ring seat;

[0024] One end of the positioning ring seat is connected and assembled to the input end of the buffer chamber seat, and the other end of the positioning ring seat is connected and connected to one end of the elastic folding ring sleeve in a closed manner;

[0025] The lever opening and closing plates and the top support and folding plates are both provided with a plurality of strips, and the plurality of lever opening and closing plates and the plurality of top support and folding plates are respectively and one by one fixedly connected and arranged in a continuous manner;

[0026] The second elastic sealing layer is provided as a second cover structure arranged along a circumference, and the second elastic sealing layer is correspondingly and closedly fixedly provided on the inner side of a plurality of the lever opening and closing plates and the inner side of a plurality of the top supporting and retracting plates;

[0027] The second elastic sealing layer is connected to the other end of the elastic folding ring sleeve in a closed manner;

[0028] Based on the initial state of the second elastic sealing layer, the plurality of lever opening and closing plates are all arranged obliquely, and the ends of the plurality of top support and folding plates away from the plurality of lever opening and closing plates are arranged to be aggregated and closed in the initial state;

[0029] The positioning ring seat is extended toward one end of the second elastic sealing layer and is fixedly connected with the lever fulcrum ring seat, and the lever fulcrum ring seat is correspondingly fitted on the inner side of a plurality of the lever opening and closing plates.

[0030] As a further embodiment of the present invention,

[0031] The plurality of spring-pressed arc plates are evenly arranged along the annular circumference, and the arc-shaped recessed directions of the plurality of spring-pressed arc plates are all corresponding to the central axis of the docking base tube body;

[0032] The plurality of lever opening and closing plates and the plurality of top support and folding plates are uniformly arranged along the annular circumference, and the plurality of lever opening and closing plates and the plurality of spring-pressed arc plates are detachably arranged in one-to-one correspondence.

[0033] As a further embodiment of the present invention,

[0034] The docking spring-pressing structure also includes a sealing elastic block;

[0035] The sealing elastic blocks are arranged in several groups, and several groups of the sealing elastic blocks are evenly fixed to the other end of the first elastic sealing layer in a circular manner, and several groups of the sealing elastic blocks are respectively fixedly connected to the aggregated ends of several elastic pressure arc plates, and several groups of the sealing elastic blocks are elastically pressed and closed based on the aggregated action of several elastic pressure arc plates.

[0036] As a further embodiment of the present invention,

[0037] The docking spring pressing structure also includes a docking guide convex plate;

[0038] The docking guide convex plates are provided in a plurality of groups, and the docking guide convex plates in the plurality of groups are outwardly expanded and fixedly provided on the converged end portions of the plurality of elastic pressure arc plates in a one-to-one correspondence.

[0039] As a further embodiment of the present invention,

[0040] The plurality of lever opening and closing plates arranged in an annular manner form a large-mouth end and a small-mouth end corresponding to an initial state;

[0041] The second elastic sealing layer corresponding to the large end of the plurality of lever opening and closing plates is connected to the other end of the elastic folding ring sleeve in a closed manner, and the elastic folding ring sleeve can adaptively adapt to the contraction and expansion states of the plurality of lever opening and closing plates and the second elastic sealing layer.

[0042] As a further embodiment of the present invention,

[0043] A plurality of the top support and folding plates are correspondingly connected to the small end positions of a plurality of the lever opening and closing plates;

[0044] The second elastic sealing layer corresponding to the small end of the lever opening and closing plates is also fixedly connected with a plurality of groups of end elastic rubber pads, and the plurality of groups of end elastic rubber pads are respectively and one by one mounted on the aggregated end portions of the plurality of top supporting and closing plates, and the plurality of groups of end elastic rubber pads are elastically pressed and closed based on the aggregated action of the plurality of top supporting and closing plates.

[0045] As a further embodiment of the present invention,

[0046] A limiting sleeve is fixedly mounted on the outer side of the positioning ring seat, and a sleeve opening is provided on one end of the limiting sleeve corresponding to the spring-pressing arc plate;

[0047] When the plurality of spring-pressing arc plates contact and press the plurality of lever opening and closing plates one by one, the inner wall of the limiting sleeve and the outer walls of the plurality of spring-pressing arc plates are correspondingly fitted, and the outward expansion range of the plurality of spring-pressing arc plates is limited by the limiting sleeve.

[0048] A delivery method according to the ventilation flow switchable nasal oxygen delivery device comprises the following steps:

[0049] When the oxygen volume needs to be increased, the docking spring pressure structure corresponding to the nasal oxygen branch tube structure is docked to the docking support structure corresponding to the nasal plug assembly structure, and the oxygen output power is controlled to increase, thereby synchronously delivering oxygen to the nasal plug assembly structure through the nasal oxygen branch tube structure and the nasal oxygen main tube structure, and the nasal plug assembly structure transfers the gas so that the oxygen is further delivered at a gas flow rate within a specific threshold range;

[0050] When the docking spring-pressure structure is connected to the docking top support structure, several top support folding plates and several lever opening and closing plates in the docking top support structure are sequentially inserted into the inner sides of several spring-pressure arc plates in the docking spring-pressure structure, and one end of several spring-pressure arc plates away from the docking base tube body contacts and presses one side of the large-mouth end of several lever opening and closing plates one by one. Based on the lever fulcrum effect formed by the lever fulcrum ring seat corresponding to the several lever opening and closing plates, one side of the small-mouth end of several lever opening and closing plates synchronously drives several spring-pressure arc plates to expand outward, thereby realizing the conduction of the oxygen supply path of the nasal oxygen branch tube structure.

[0051] The present invention has the following beneficial effects:

[0052] The device effectively completes the established oxygen supply function through the cooperation of the nasal plug component structure, the nasal oxygen main pipe structure and the oxygen supply pipe structure. At the same time, it can use the three-way joint structure to cooperate with the nasal oxygen branch pipe structure to further connect the nasal plug component structure to achieve branch oxygen conduction, thereby effectively increasing the total flow path of the oxygen supply passage. When the oxygen supply is increased by increasing the oxygen output power, the oxygen flow rate can be more easily stabilized. In addition, the docking spring pressure structure and the docking top support structure can be used to achieve automatic conduction of branch oxygen plug-in and automatic closure after removal, which significantly improves the overall functional practicality and flexible and convenient application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0054] Figure 1 This is a schematic diagram of the overall structure of a ventilation flow switchable nasal oxygen delivery device provided in an embodiment of the present invention.

[0055] Figure 2 A schematic diagram of the exploded structure of the docking spring-pressing structure and the docking support structure based on the assembly state in the ventilation flow switchable nasal oxygen delivery device provided in an embodiment of the present invention.

[0056] Figure 3 This is a structural schematic diagram of the assembly state of the docking spring-pressing structure and the docking supporting structure in the ventilation flow switchable nasal oxygen delivery device provided in Example 1 of the present invention.

[0057] Figure 4This is a structural schematic diagram of the assembly state of the docking spring-pressing structure and the docking supporting structure in the ventilation flow switchable nasal oxygen delivery device provided in Example 2 of the present invention.

[0058] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0059] Nasal plug component structure 1: nasal plug body 11, air buffer cavity seat 12;

[0060] Nasal oxygen main pipe structure 2; three-way joint structure 3; oxygen supply pipe structure 4; nasal oxygen branch pipe structure 5;

[0061] The docking spring-pressing structure 6 includes a docking base tube body 61, a spring-pressing arc plate 62, a first elastic sealing layer 63, a sealing elastic block 64, and a docking guide convex plate 65;

[0062] The docking top support structure 7 includes a positioning ring seat 71, an elastic folding ring sleeve 72, a lever opening and closing plate 73, a top support folding plate 74, a second elastic sealing layer 75, an end elastic rubber pad 76, a positioning extension rod body 77, a lever fulcrum ring seat 78, and a limiting sleeve seat 79. DETAILED DESCRIPTION

[0063] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0065] Example 1

[0066] like Figures 1 to 3As shown, an embodiment of the present invention provides a nasal oxygen delivery device with switchable ventilation flow, including a nasal plug component structure 1, a nasal oxygen main pipe structure 2, a three-way joint structure 3, an oxygen supply pipe structure 4, a nasal oxygen branch pipe structure 5, a docking spring pressure structure 6 and a docking top support structure 7, which are used to effectively complete the established oxygen supply function through the cooperation of the nasal plug component structure 1, the nasal oxygen main pipe structure 2 and the oxygen supply pipe structure 4, and at the same time, the three-way joint structure 3 can be used to cooperate with the nasal oxygen branch pipe structure 5 to further dock the nasal plug component structure 1 to achieve branch oxygen conduction, thereby effectively improving the total flow path of the oxygen supply passage, and when the oxygen supply is increased by increasing the oxygen output power, the oxygen flow rate can be more easily stabilized. In addition, the docking spring pressure structure 6 and the docking top support structure 7 can also be used to achieve automatic conduction of branch oxygen plug-in and automatic closure after detachment, which significantly improves the overall functional practicality and flexible and convenient application of the device. The specific settings are as follows:

[0067] Please refer to Figure 1 The input end of the nasal plug component structure 1 is connected and arranged with one end of the nasal oxygen main pipe structure 2, and the other end of the nasal oxygen main pipe structure 2 is connected and arranged with a first end of the three-way joint structure 3; one end of the oxygen supply pipe structure 4 is connected and arranged with a second end of the three-way joint structure 3, so as to effectively complete the established oxygen supply function through the nasal oxygen main pipe structure 2; one end of the nasal oxygen branch pipe structure 5 is connected and arranged with a third end of the three-way joint structure 3, and the other end of the nasal oxygen branch pipe structure 5 is detachably connected and arranged with the input end of the nasal plug component structure 1, so as to use the nasal oxygen branch pipe structure 5 to further connect with the nasal plug component structure 1 to realize branch oxygen conduction, thereby effectively increasing the total flow path of the oxygen supply passage, and achieving an increase in oxygen supply on the basis of ensuring a more stable oxygen flow rate.

[0068] For details, please continue to refer to Figure 1 The nasal plug component structure 1 includes a nasal plug main body 11 and a buffer chamber seat 12 connected to the nasal plug main body 11; the nasal oxygen main pipe structure 2 and the nasal oxygen branch pipe structure 5 are respectively connected to the input end of the buffer chamber seat 12, so as to use the buffer chamber seat 12 effectively as a transfer chamber for further transmission of oxygen from the main branch pipe, so that the oxygen flow rate is more uniform and stable.

[0069] Please refer to Figures 1 to 3The docking spring-pressing structure 6 is fixedly assembled at the other end of the nasal oxygen branch tube structure 5, and the docking top support structure 7 is fixedly assembled at the input end of the buffer chamber seat 12. The docking spring-pressing structure 6 and the docking top support structure 7 are detachably connected and arranged to realize automatic conduction of branch oxygen plug-in and automatic closure after disassembly by using the docking spring-pressing structure 6 and the docking top support structure 7, which significantly improves the overall functional practicality and the convenience of disassembly and assembly.

[0070] Specifically, the docking spring-pressing structure 6 includes a docking base tube body 61, a spring-pressing arc plate 62, a first elastic sealing layer 63, a sealing elastic block 64 and a docking guide convex plate 65; wherein, one end of the docking base tube body 61 along its extension direction is closed and connected with the other end of the nasal oxygen branch tube structure 5; the spring-pressing arc plates 62 are provided with a plurality of them, and the plurality of the spring-pressing arc plates 62 are evenly arranged along the annular circumference, and one end of the plurality of the spring-pressing arc plates 62 is respectively fixedly connected with the other end of the docking base tube body 61 along its extension direction, and the arc-shaped recessed directions of the plurality of the spring-pressing arc plates 62 all correspond to the central axis of the docking base tube body 61, and the ends of the plurality of the spring-pressing arc plates 62 away from the docking base tube body 61 are aggregated in the initial state.

[0071] The first elastic sealing layer 63 is configured as a first cover structure arranged along a circumferential manner, and the first elastic sealing layer 63 is correspondingly and closedly fixedly arranged on the inner side of a plurality of the elastic pressure arc plates 62, and one end of the first elastic sealing layer 63 is closed and continuously connected to the other end of the docking base tube body 61, so as to further effectively and closedly conduct the branch oxygen through the first elastic sealing layer 63.

[0072] The sealing elastic blocks 64 are arranged in a plurality of groups, and the plurality of groups of the sealing elastic blocks 64 are uniformly fixed to the other end of the first elastic sealing layer 63 in a circular manner, and the plurality of groups of the sealing elastic blocks 64 are respectively fixedly connected to the aggregated ends of a plurality of the elastic pressure arc plates 62, so as to further realize elastic pressing and sealing by utilizing the aggregated effect of the plurality of elastic pressure arc plates 62 by utilizing the plurality of groups of the sealing elastic blocks 64, and thus can effectively keep the passage closed when the plurality of elastic pressure arc plates 62 are in the initial state.

[0073] As a preferred solution of this embodiment, please continue to refer to Figure 2 and Figure 3 There are several groups of docking guide convex plates 65, and the several groups of docking guide convex plates 65 are outwardly expanded and respectively fixedly connected to the converged end parts of the several elastic arc plates 62, so as to make it easier for the docking support structure 7 to be inserted into the inner side of the several elastic arc plates 62 along the guide by utilizing the several groups of docking guide convex plates 65.

[0074] Please continue to refer to Figure 2 and Figure 3 The docking support structure 7 includes a positioning ring seat 71, an elastic folding ring sleeve 72, a lever opening and closing plate 73, a support folding plate 74, a second elastic sealing layer 75, an end elastic rubber pad 76, a positioning extension rod body 77 and a lever fulcrum ring seat 78; wherein, one end of the positioning ring seat 71 is connected and assembled to the input end of the buffer chamber seat 12, and the other end of the positioning ring seat 71 is closed and connected to one end of the elastic folding ring sleeve 72; the lever opening and closing plates 73 and the support folding plates 74 are each provided with a plurality of, and the plurality of lever opening and closing plates 73 and the plurality of support folding plates 74 are uniformly arranged along the annular circumference, and the plurality of lever opening and closing plates 73 and the plurality of support folding plates 74 are respectively fixedly connected and connected one by one.

[0075] The second elastic sealing layer 75 is configured as a second cover structure arranged along a circumferential manner, and the second elastic sealing layer 75 is correspondingly and closedly fixedly arranged on the inner side portions of several of the lever opening and closing plates 73 and the inner side portions of several of the top supporting and closing plates 74, so as to further effectively and closedly conduct the branch oxygen through the second elastic sealing layer 75 in the plugged-in state; the several lever opening and closing plates 73 are all obliquely arranged based on the initial state of the second elastic sealing layer 75, that is, the several lever opening and closing plates 73 arranged in a ring form a large mouth end and a small mouth end corresponding to the initial state; the several top supporting and closing plates 74 are correspondingly and continuously arranged at the small mouth end positions of the several lever opening and closing plates 73, and the end portions of the several top supporting and closing plates 74 away from the several lever opening and closing plates 73 are aggregated in the initial state.

[0076] Please continue to refer to Figure 2 and Figure 3 The second elastic sealing layer 75 corresponding to the large-mouthed end of the plurality of lever opening and closing plates 73 is connected to the other end of the elastic folding ring sleeve 72 in a closed manner, so as to effectively and adaptively adapt to the contraction and expansion states of the plurality of lever opening and closing plates 73 and the second elastic sealing layer 75 through the elastic folding ring sleeve 72; the second elastic sealing layer 75 corresponding to the small-mouthed end of the plurality of lever opening and closing plates 73 is also fixedly provided with a plurality of groups of end elastic rubber pads 76, which are respectively and one by one correspondingly sleeved on the aggregated end of the plurality of top supporting and closing plates 74, so as to utilize the plurality of groups of end elastic rubber pads 76 based on the aggregated effect of the plurality of top supporting and closing plates 74 to realize elastic pressing and closing, so as to effectively keep the passage closed when the plurality of lever opening and closing plates 73 are in the initial state.

[0077] Please continue to refer to Figure 2 and Figure 3The end portion of the positioning ring seat 71 facing the second elastic sealing layer 75 is fixedly connected with the positioning extension rod body 77, and the end portion of the positioning extension rod body 77 away from the positioning ring seat 71 is fixedly connected with a lever fulcrum ring seat 78, and the lever fulcrum ring seat 78 corresponds to the inner side portion of the plurality of lever opening and closing plates 73, so as to effectively form the lever fulcrum of the plurality of lever opening and closing plates 73 through the lever fulcrum ring seat 78. When the plurality of top supporting and closing plates 74 and the plurality of lever opening and closing plates 73 are sequentially inserted into the inner side portion of the plurality of elastic arc plates 62, the end portion of the plurality of elastic arc plates 62 away from the docking base tube body 61 can contact and press the large-mouth end side portion of the plurality of lever opening and closing plates 73 one by one. Based on the lever fulcrum effect formed by the lever fulcrum ring seat 78, the small-mouth end side portion of the plurality of lever opening and closing plates 73 can synchronously drive the plurality of elastic arc plates 62 to expand outward, thereby effectively realizing the conduction of the branch oxygen supply path.

[0078] It should be noted that the first elastic sealing layer 63, the sealing elastic block 64, the elastic folding ring sleeve 72, the second elastic sealing layer 75 and the end elastic rubber pad 76 can all be made of but not limited to PP material or silicone material.

[0079] The embodiment of the present invention also provides a delivery method of a nasal oxygen delivery device switchable according to ventilation flow, which specifically includes the following steps:

[0080] When the amount of oxygen needs to be increased, the docking spring-pressing structure 6 corresponding to the nasal oxygen branch tube structure 5 is docked to the docking support structure 7 corresponding to the nasal plug component structure 1, and the oxygen output power is controlled to increase, thereby synchronously delivering oxygen to the nasal plug component structure 1 through the nasal oxygen branch tube structure 5 and the nasal oxygen main tube structure 2, and the gas is transferred through the nasal plug component structure 1 so that the oxygen is further transported at a gas flow rate within a specific threshold range.

[0081] When the docking spring-pressing structure 6 is connected to the docking top support structure 7, several top support folding plates 74 and several lever opening and closing plates 73 in the docking top support structure 7 are sequentially inserted into the inner side of several spring-pressing arc plates 62 in the docking spring-pressing structure 6, and one end of several spring-pressing arc plates 62 away from the docking base tube body 61 contacts and presses one side of the large-mouth end of several lever opening and closing plates 73 one by one. Based on the lever fulcrum effect formed by the lever fulcrum ring seat 78 corresponding to the several lever opening and closing plates 73, one side of the small-mouth end of several lever opening and closing plates 73 synchronously drives several spring-pressing arc plates 62 to expand outward, thereby realizing the conduction of the oxygen supply path of the nasal oxygen branch tube structure 5.

[0082] Example 2

[0083] In Example 2, the same symbols are given to the same structures as in Example 1, and the same descriptions are omitted. Example 2 is improved on the basis of Example 1, please refer to Figure 4A limiting sleeve 79 is fixedly assembled on the outer side of the positioning ring seat 71, and a sleeve opening is provided on the limiting sleeve 79 corresponding to one end of the spring-pressing arc plate 62. When a plurality of the spring-pressing arc plates 62 contact and press a plurality of the lever opening and closing plates 73 one by one, the inner wall of the limiting sleeve 79 and the outer wall of the plurality of the spring-pressing arc plates 62 are correspondingly fitted, so as to effectively limit the outward expansion range of the plurality of spring-pressing arc plates 62 through the limiting sleeve 79, thereby ensuring the conduction stability of the oxygen supply path of the nasal oxygen branch tube structure 5.

[0084] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A ventilation flow switchable nasal oxygen delivery device, characterized in that: include: Nasal plug component structure; A nasal oxygen main pipe structure, one end of which is connected to the input end of the nasal plug assembly structure; A three-way joint structure, wherein a first end is connected to the other end of the nasal oxygen main pipe structure, and a second end of the three-way joint structure is connected to one end of the oxygen supply pipe structure, and the oxygen supply pipe structure supplies oxygen to the nasal oxygen main pipe structure through the three-way joint structure; A nasal oxygen branch tube structure, one end of which is connected to the third end of the three-way joint structure, and the other end of the nasal oxygen branch tube structure is fixedly equipped with a docking spring pressure structure; A docking support structure is fixedly assembled at the input end of the nasal plug assembly structure, and the docking support structure and the docking spring pressure structure are detachably connected and arranged; The nasal plug assembly structure includes a nasal plug body and an air buffer cavity seat connected to the nasal plug body; The nasal oxygen main pipe structure is connected to the input end of the buffer chamber seat; The butt-jointed supporting structure is fixedly assembled and arranged at the input end of the buffer chamber seat; The butt-jointed spring-pressing structure comprises a butt-jointed base tube body, a spring-pressing arc plate and a first elastic sealing layer; One end of the docking base tube body along its extension direction is connected to the other end of the nasal oxygen branch tube structure in a closed manner; The elastic arc plates are provided with a plurality of strips, one end of each of the elastic arc plates is respectively fixedly connected to the other end of the docking base tube body along its extension direction, and the ends of the plurality of elastic arc plates away from the docking base tube body are aggregated and closed in an initial state; The first elastic sealing layer is provided as a first cover structure arranged along a circumference, and the first elastic sealing layer is correspondingly and fixedly provided on the inner side of a plurality of the elastic pressure arc plates in a closed manner, and one end of the first elastic sealing layer is connected to the other end of the docking base tube body in a closed manner; The butt joint support structure comprises a positioning ring seat, an elastic folding ring sleeve, a lever opening and closing plate, a support folding plate, a second elastic sealing layer and a lever fulcrum ring seat; One end of the positioning ring seat is connected and assembled to the input end of the buffer chamber seat, and the other end of the positioning ring seat is connected and connected to one end of the elastic folding ring sleeve in a closed manner; The lever opening and closing plates and the top support and folding plates are each provided with a plurality of strips, and the plurality of lever opening and closing plates and the plurality of top support and folding plates are respectively and one by one fixedly connected and arranged in a continuous manner; The second elastic sealing layer is provided as a second cover structure arranged along a circumference, and the second elastic sealing layer is correspondingly and closedly fixedly provided on the inner side of a plurality of the lever opening and closing plates and the inner side of a plurality of the top supporting and retracting plates; The second elastic sealing layer is connected to the other end of the elastic folding ring sleeve in a closed manner; Based on the initial state of the second elastic sealing layer, the plurality of lever opening and closing plates are all arranged obliquely, and the ends of the plurality of top support and folding plates away from the plurality of lever opening and closing plates are arranged to be aggregated and closed in the initial state; The positioning ring seat is extended toward one end of the second elastic sealing layer and is fixedly connected with the lever fulcrum ring seat, and the lever fulcrum ring seat is correspondingly fitted on the inner side of a plurality of the lever opening and closing plates.

2. The ventilation flow switchable nasal oxygen delivery device according to claim 1, characterized in that: The plurality of spring-pressed arc plates are evenly arranged along the annular circumference, and the arc-shaped recessed directions of the plurality of spring-pressed arc plates are all corresponding to the central axis of the docking base tube body; The plurality of lever opening and closing plates and the plurality of top support and folding plates are uniformly arranged along the annular circumference, and the plurality of lever opening and closing plates and the plurality of spring-pressed arc plates are detachably arranged in one-to-one correspondence.

3. The ventilation flow switchable nasal oxygen delivery device according to claim 2, characterized in that: The docking spring-pressing structure also includes a sealing elastic block; The sealing elastic blocks are arranged in several groups, and several groups of the sealing elastic blocks are evenly fixed to the other end of the first elastic sealing layer in a circular manner, and several groups of the sealing elastic blocks are respectively fixedly connected to the aggregated ends of several elastic pressure arc plates, and several groups of the sealing elastic blocks are elastically pressed and closed based on the aggregated action of several elastic pressure arc plates.

4. The ventilation flow switchable nasal oxygen delivery device according to claim 2, characterized in that: The docking spring pressing structure also includes a docking guide convex plate; The docking guide convex plates are provided in a plurality of groups, and the docking guide convex plates in the plurality of groups are outwardly expanded and fixedly provided on the converged end portions of the plurality of elastic pressure arc plates in a one-to-one correspondence.

5. The ventilation flow switchable nasal oxygen delivery device according to claim 2, characterized in that: The plurality of lever opening and closing plates arranged in an annular manner form a large-mouth end and a small-mouth end corresponding to an initial state; The second elastic sealing layer corresponding to the large end of the plurality of lever opening and closing plates is connected to the other end of the elastic folding ring sleeve in a closed manner, and the elastic folding ring sleeve can adaptively adapt to the contraction and expansion states of the plurality of lever opening and closing plates and the second elastic sealing layer.

6. The ventilation flow switchable nasal oxygen delivery device according to claim 5, characterized in that: A plurality of the top support and folding plates are correspondingly connected to the small end positions of a plurality of the lever opening and closing plates; The second elastic sealing layer corresponding to the small end of the lever opening and closing plates is also fixedly connected with a plurality of groups of end elastic rubber pads, and the plurality of groups of end elastic rubber pads are respectively and one by one mounted on the aggregated end portions of the plurality of top supporting and closing plates, and the plurality of groups of end elastic rubber pads are elastically pressed and closed based on the aggregated action of the plurality of top supporting and closing plates.

7. The ventilation flow switchable nasal oxygen delivery device according to claim 5, characterized in that: A limiting sleeve is fixedly mounted on the outer side of the positioning ring seat, and a sleeve opening is provided on one end of the limiting sleeve corresponding to the spring-pressing arc plate; When the plurality of spring-pressing arc plates contact and press the plurality of lever opening and closing plates one by one, the inner wall of the limiting sleeve and the outer walls of the plurality of spring-pressing arc plates are correspondingly fitted, and the outward expansion range of the plurality of spring-pressing arc plates is limited by the limiting sleeve.

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