Nasal plug catheter structure

Abstract

The invention provides a nasal obstruction catheter structure, and particularly relates to the technical field of medical treatment. The rhinobyon catheter structure comprises a rhinobyon structure, a pipeline and a pipe clamp face paste assembly. Wherein the nose plug structure is provided with two opposite air inlets in the first direction, and is provided with two parallel air outlets in the second direction. The pipeline is fixedly connected to the air inlet of the nose plug structure, and the pipeline is communicated with the nose plug structure. And the pipe clamp and face paste assembly is arranged on the nose plug structure. An air channel is formed between an air inlet and an air outlet of the nose plug structure, the air channel comprises a bent transition section, an included angle between at least one section of the middle part of the transition section and the section of the starting part of the transition section is an acute angle, and the section of the middle part of the transition section is different from the section of the starting part of the transition section in shape. The transition section is arranged in the gas channel of the nose plug structure, so that the gas flowing smoothness is improved, the noise of gas flow is effectively reduced, and the stability of the gas flow is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical treatment, in particular to a nasal plug catheter structure. BACKGROUND

[0002] With the progress of medical technology, the nasal plug catheter structure has been widely used in many fields such as medical treatment. Among them, the nasal plug catheter structure as a kind of medical equipment is used to deliver oxygen or therapeutic gas into the respiratory tract of the user to assist or maintain its normal breathing function.

[0003] Among them, the nasal plug catheter structure can help to remove mucus and other blockages in the user's nasal cavity, ensuring smooth air circulation. Through the nasal passage, the nasal plug catheter structure is inserted into the user's nasal cavity, thereby establishing an effective gas delivery path. Further through the removal of nasal congestion, the nasal plug catheter structure helps to improve the user's breathing efficiency and reduce breathing difficulties.

[0004] However, in the existing nasal plug catheter structure, the nasal plug part of the nasal plug catheter structure generally selects left and right through and the nasal plug part is completely perpendicular to the horizontal direction, but this will cause the airflow on both sides to flow into the nasal plug airway after the airflow on both sides flows into the nasal plug airway, and the airflow on both sides will produce a vortex in the middle connecting part of the two airways. In high-flow respiratory humidification therapy, the vortex generated by the collision of high-flow gas not only affects the flow and pressure of the airflow itself, but also causes the gas flowing out of the nasal plug to oscillate and produce noise, causing discomfort in the user's nasal cavity. SUMMARY

[0005] The present application provides a nasal plug catheter structure. By providing a transition section in the gas passage of the nasal plug structure, the smoothness of gas flow is increased, and no obvious airflow conflict and vortex will be produced under the condition of increasing air flow, effectively reducing the noise of airflow and improving the stability of airflow. In addition, the flow rate of the airflow flowing out of the nasal plug catheter structure is more uniform, the impact on the user's nasal cavity is small, and the user's comfort is greatly improved.

[0006] The present application provides a nasal plug catheter structure, comprising:

[0007] a nasal plug structure, the nasal plug structure being provided with two opposite air inlets in a first direction and two parallel air outlets in a second direction;

[0008] a pipeline, the pipeline being fixedly connected to the air inlets of the nasal plug structure and being in communication with the nasal plug structure;

[0009] a tube clamp face sticker assembly, the tube clamp face sticker assembly being arranged on the nasal plug structure;

[0010] The gas passage is formed between the air inlet and the air outlet of the nasal obstruction structure, and includes a transition section in a meandering shape, an included angle between at least one section of the middle part of the transition section and a section of the initial part of the transition section is an acute angle, and the section of the middle part of the transition section is different in shape from the section of the initial part of the transition section.

[0011] The nasal obstruction conduit structure provided by the application includes a nasal obstruction structure, a pipeline and a tube clamp face adhesive assembly. The nasal obstruction structure is provided with two opposite air inlets in a first direction and two parallel air outlets in a second direction. The pipeline is fixedly connected to the air inlets of the nasal obstruction structure and is in communication with the nasal obstruction structure. The tube clamp face adhesive assembly is arranged on the nasal obstruction structure. The gas passage is formed between the air inlets and the air outlets of the nasal obstruction structure, and includes a transition section in a meandering shape, an included angle between at least one section of the middle part of the transition section and a section of the initial part of the transition section is an acute angle, and the section of the middle part of the transition section is different in shape from the section of the initial part of the transition section. In this way, the nasal obstruction conduit structure provided by the application increases the smoothness of gas flow by arranging the transition section in the gas passage of the nasal obstruction structure, and does not cause obvious airflow conflict and vortex even if the air inlet flow rate is increased, effectively reduces the noise of the airflow and improves the stability of the airflow. In addition, the flow rate of the airflow flowing out of the nasal obstruction conduit structure is more uniform, the impact on the nasal cavity of the user is small, and the comfort of the user is greatly improved.

[0012] In a possible implementation, the gas passage further includes an air inlet section and an air outlet section, the air inlet section is in communication with the air inlet, and the air outlet section is in communication with the air outlet.

[0013] The initial part of the transition section is in communication with the air inlet section, and the end part of the transition section is in communication with the air outlet section.

[0014] In a possible implementation, the included angle between at least one section of the middle part of the transition section and the section of the initial part of the transition section ranges from 25 to 35 degrees.

[0015] When the air outlet section is positioned in the nostril of the user, the transition section is located in the nasolabial sulcus area of the face of the user, so that the nasal obstruction structure can be naturally extended along the face of the user.

[0016] In a possible implementation, at least one section of the middle part of the transition section is elliptical, and the section of the initial part of the transition section and the section of the end part of the transition section are circular.

[0017] The elliptical section of the transition section is gently fitted with the nasolabial sulcus area of the face of the user, so as to slow down the air outlet pressure of the nasal obstruction structure.

[0018] In one possible implementation, the radial dimension of at least one of the air outlet section is greater than or equal to the radial dimension of the starting region of the air outlet section and the radial dimension of the ending region of the air outlet section, and the radial dimension of the air outlet section is always less than the size of the user's nostrils.

[0019] In one possible implementation, the radial dimension of the middle region of the air outlet section is greater than or equal to the radial dimension of the starting region of the air outlet section and the radial dimension of the ending region of the air outlet section, and the radial dimension of the air outlet section is always less than the size of the user's nostrils.

[0020] In one possible implementation, the radial dimension of the middle region of the air outlet section is gradually changed towards the radial dimension of the starting region of the air outlet section and the radial dimension of the ending region of the air outlet section, and the inner cavity surface of the air outlet section is a smooth and continuous curved surface.

[0021] In one possible implementation, the tube clamp faceplate assembly includes a connecting portion located at the connection between the nasal plug structure and the tube;

[0022] The connecting portion is provided with a receiving cavity, and the tube is axially arranged in the receiving cavity and connected with the nasal plug structure.

[0023] In one possible implementation, the connecting portion includes a clamping portion having a first end and a second end, the first end is connected to the nasal plug structure, and the second end is connected to the tube, and in the second direction, the size of the first end is greater than or equal to the size of the second end.

[0024] In one possible implementation, the first end is provided with oppositely arranged first and second through holes, and the nasal plug structure is provided with a first protruding portion and a second protruding portion protruding from the outer surface of one end of the air inlet;

[0025] The first protruding portion cooperates with the first through hole, and the second protruding portion cooperates with the second through hole.

[0026] In one possible implementation, the size of the first through hole is greater than or equal to the size of the first protruding portion, and the size of the second through hole is greater than or equal to the size of the second protruding portion, so that the first protruding portion and the second protruding portion can move in the first through hole and the second through hole, respectively.

[0027] In one possible implementation, the connecting portion includes a clamping structure connected to the nasal plug structure by clamping;

[0028] One end of the clamping structure towards the nasal plug structure is provided with two oppositely arranged clamping portions, and the outer surface of one end of the air inlet of the nasal plug structure is provided with two clamping grooves, and the clamping portions and the clamping grooves are connected by clamping.

[0029] In one possible implementation, the outer surface of one end of the air inlet of the nasal plug structure is provided with two protruding portions, and the protruding portions abut against the inner side wall of the tube clamp faceplate assembly.

[0030] In a possible implementation, the first interlocking structure is arranged on one end of the air inlet of the nasal plug structure, and the second interlocking structure is arranged on the tube clamp face pad assembly and matched with the first interlocking structure;

[0031] The first interlocking structure and the second interlocking structure are detachably connected, and the nasal plug structure rotates relative to the tube clamp face pad assembly within a preset angle range in the connected state of the first interlocking structure and the second interlocking structure.

[0032] The nasal plug catheter structure provided by the application increases the smoothness of gas flow by arranging a transition section in the gas passage of the nasal plug structure, setting the angle of the transition section, and making the cross section of the middle part of the transition section different from the cross section shape of the starting part of the transition section, effectively reducing the noise of the gas flow and improving the stability of the gas flow. Stable gas transition can effectively reduce the vibration of the nasal plug structure and the face fitting part, reducing the discomfort of the user. In addition to the technical problems solved by the application, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features described above, other technical problems solved by the nasal plug catheter structure provided by the application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application or the prior art. Obviously, the drawings in the following description are only a part of the embodiments of the application, and these drawings and the description are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to those skilled in the art by reference to specific embodiments. Those skilled in the art can also obtain other drawings without creative labor under the premise of not paying creative labor.

[0034] Figure 1 The overall structure schematic diagram of the nasal plug catheter structure provided by the embodiment of the application;

[0035] Figure 2 The partial structure schematic diagram of the nasal plug catheter structure provided by the embodiment of the application;

[0036] Figure 3 The structure schematic diagram of the nasal plug structure of the nasal plug catheter structure provided by the embodiment of the application;

[0037] Figure 4 The partial exploded schematic diagram of the nasal plug catheter structure provided by the embodiment of the application;

[0038] Figure 5 A structure diagram of a gas passage of a nasal cannula structure provided by an embodiment of the present application;

[0039] Figure 6 A simulation diagram of a nasal cannula structure in the related art;

[0040] Figure 7 A simulation diagram of another nasal cannula structure in the related art;

[0041] Figure 8 A simulation diagram of still another nasal cannula structure in the related art;

[0042] Figure 9 A simulation diagram of yet another nasal cannula structure in the related art;

[0043] Figure 10 A simulation diagram of a nasal cannula structure provided by an embodiment of the present application;

[0044] Figure 11 A structure diagram of a connection between a pipeline and a tube clamp face sticker assembly of a nasal cannula structure provided by an embodiment of the present application;

[0045] Figure 12 A structure diagram of a tube clamp face sticker assembly of a nasal cannula structure provided by an embodiment of the present application;

[0046] Figure 13 An exploded diagram of a tube clamp face sticker assembly and a nasal plug structure of a nasal cannula structure provided by an embodiment of the present application;

[0047] Figure 14 An exploded diagram of another tube clamp face sticker assembly and a nasal plug structure of a nasal cannula structure provided by an embodiment of the present application;

[0048] Figure 15 An exploded diagram of a tube clamp face sticker assembly of a nasal cannula structure provided by an embodiment of the present application;

[0049] Figure 16 A side view of a tube clamp face sticker assembly and a pipeline of a nasal cannula structure provided by an embodiment of the present application.

[0050] Legend of reference signs:

[0051] 100 - nasal cannula structure

[0052] 200 - nasal obstruction structure; 210 - air inlet; 220 - air outlet; 230 - gas passage; 231 - transition section; 2311 - start part; 2312 - middle part; 2313 - end part; 232 - air inlet section; 233 - air outlet section; 2331 - start area; 2332 - middle area; 2333 - end area; 240 - connecting bridge; 250 - first protruding part; 260 - second protruding part; 270 - clamping groove; 280 - protruding part;

[0053] 300 - pipeline;

[0054] 400 - pipe clamp surface pasting assembly; 410 - clamping part; 411 - first end; 4111 - first through hole; 4112 - second through hole; 412 - second end; 420 - clamping structure; 421 - clamping part; 430 - surface pasting structure; 431 - surface pasting piece; 432 - adhesive piece; 433 - elastic piece; 440 - connecting part; 441 - accommodating cavity;

[0055] 500 - adjusting structure;

[0056] 600 - air inlet connector structure. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0058] As described in the background, in the existing nasal obstruction catheter structure, the nasal obstruction part of the nasal obstruction catheter structure is generally selected to be left-right through and the nasal insertion part is completely perpendicular to the horizontal direction, but this will cause the countercurrent conflict of the airflows on the left and right sides in the middle connecting part of the two sides of the airway after the airflows on the left and right sides are simultaneously merged into the nasal obstruction airway. In high-flow respiratory humidification treatment, the vortex generated by the high-flow air collision not only affects the flow and pressure of the airflow itself, but also causes the oscillation and noise of the air flowing out through the nasal insertion, causing the user's nasal cavity to be uncomfortable.

[0059] To solve the above technical problems, the embodiment of the present application provides a nasal cannula structure. The nasal cannula structure comprises a nasal plug structure, a pipeline and a tube clamp face paste assembly. The nasal plug structure is provided with two opposite air inlets in a first direction and two parallel air outlets in a second direction. The pipeline is fixedly connected to the air inlets of the nasal plug structure, and the pipeline and the nasal plug structure are in communication. The tube clamp face paste assembly is arranged on the nasal plug structure. The air inlets and the air outlets of the nasal plug structure form a gas passage, the gas passage comprises a transition section in a meandering shape, an included angle between at least one section of a middle part of the transition section and a section of a starting part of the transition section is an acute angle, and the section of the middle part of the transition section and the section of the starting part of the transition section are different in shape. In this way, the nasal cannula structure provided by the present application increases the smoothness of gas flow by arranging the transition section in the gas passage of the nasal plug structure, and does not produce obvious air flow conflict and vortex even if the air inlet flow increases, effectively reduces the noise of the air flow, and improves the stability of the air flow. In addition, the flow rate of the air flow flowing out of the nasal cannula structure is more uniform, the impact on the user's nasal cavity is small, and the user's comfort is greatly improved.

[0060] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0061] The embodiment of the present application provides a nasal cannula structure. By arranging a transition section in the gas passage of the nasal plug structure, the smoothness of gas flow is increased, and obvious air flow conflict and vortex will not be produced even if the air inlet flow increases, the noise of the air flow is effectively reduced, and the stability of the air flow is improved. In addition, the flow rate of the air flow flowing out of the nasal cannula structure is more uniform, the impact on the user's nasal cavity is small, and the user's comfort is greatly improved. The specific structure of the nasal cannula structure provided by the embodiment of the present application will be introduced below with reference to the drawings.

[0062] Reference Figure 1 and Figure 2 , the embodiment of the present application provides a nasal cannula structure 100 in the first aspect. Wherein the nasal cannula structure 100 can comprise a nasal plug structure 200, a pipeline 300 and a tube clamp face paste assembly 400. In the embodiment of the present application, as Figure 3As shown, the nasal obstruction structure 200 can be respectively provided with an air inlet 210 and an air outlet 220. In a possible implementation, the number of the air inlet 210 and the air outlet 220 can both be two, and the number of the air inlet 210 and the air outlet 220 is not limited in the embodiment of the present application. The two air inlets 210 can be oppositely arranged in the first direction of the nasal obstruction structure 200, and the two air outlets 220 can be arranged side by side in the second direction of the nasal obstruction structure 200, and the air inlet 210 can be arranged and communicated with the air outlet 220 correspondingly.

[0063] It should be noted that, for the convenience of description, in the embodiment of the present application, the first direction can be the length direction of the nasal obstruction structure 200, that is, the x direction in Figure 3 . The second direction can be the height direction of the nasal obstruction structure 200, that is, the y direction in Figure 3 . The first direction can be perpendicular to the second direction.

[0064] Referring to Figure 4 , on the basis of the above embodiment, the pipeline 300 can be inserted into the air inlet 210 of the nasal obstruction structure 200, so that the pipeline 300 and the nasal obstruction structure 200 are fixedly connected, and the pipeline 300 and the nasal obstruction structure 200 are communicated. The gas can enter the air inlet 210 of the nasal obstruction structure 200 along the pipeline 300 and flow out of the air outlet 220 of the nasal obstruction structure 200. In addition, the pipe clamp face paste assembly 400 is detachably arranged on the nasal obstruction structure 200. In a possible implementation, one end of the pipe clamp face paste assembly 400 is fixedly connected to the connection between the nasal obstruction structure 200 and the pipeline 300, and the other end of the pipe clamp face paste assembly 400 is used for positioning and pasting the face of the user.

[0065] Continuing to refer to Figure 3 , on the basis of the above embodiment, the air inlet 210 and the air outlet 220 of the nasal obstruction structure 200 can form a gas passage 230. In the embodiment of the present application, the nasal obstruction structure 200 has two completely symmetrical gas passages 230 in the first direction, and one of the two single-sided air passages is exemplified in the embodiment of the present application.

[0066] In a possible implementation, as Figure 5As shown, the gas channel 230 may include a transition section 231, which may be arranged in a curved shape between the air inlet 210 and the air outlet 220 of the nasal plug structure 200. In the embodiment of the present application, the size of the transition section 231 and the direction of gas flowing through the transition section 231 are changed. The angle between at least one cross-section of the middle portion 2312 of the transition section 231 and the cross-section of the starting portion 2311 of the transition section 231 may be an acute angle. Exemplarily, the angle between at least one cross-section of the middle portion 2312 of the transition section 231 and the cross-section of the starting portion 2311 of the transition section 231 may be in the range of 25-35 degrees, and the cross-section of the middle portion 2312 of the transition section 231 is different from the cross-section of the starting portion 2311 of the transition section 231.

[0067] In this way, by setting a transition section 231 in the gas channel 230 of the nasal plug structure 200 and setting the angle of the transition section 231, the smoothness of the gas flow is increased, and no obvious airflow conflict and vortex will be generated when the intake flow rate increases, thereby effectively reducing the oscillation and noise of the airflow.

[0068] In an embodiment of the present application, the transition section 231 can be set on the outer fitting surface of the nasal plug structure 200 and the user's philtral ridge, so that this part of the nasal plug structure 200 will not cause local uneven wall thickness due to the change of gas direction in the gas channel 230. At the same time, the stable gas transition can effectively reduce the vibration of the nasal plug structure 200 and the face fitting point, reducing the user's discomfort.

[0069] Continue to refer Figure 3 Based on the above embodiment, the gas channel 230 may further include an inlet section 232 and an outlet section 233. The inlet section 232 may be connected to the inlet port 210, while the outlet section 233 may be connected to the outlet port 220. In this embodiment of the present application, the starting portion 2311 of the transition section 231 may be connected to the inlet section 232, while the ending portion 2313 of the transition section 231 may be connected to the outlet section 233, thereby forming the gas channel 230 with the inlet section 232, the transition section 231, and the outlet section 233.

[0070] In the embodiment of the present application, it can be understood that when the air outlet section 233 is positioned in the user's nostrils, the transition section 231 can be located in the nasolabial groove area of ​​the user's face, so that the nasal plug structure 200 can naturally extend along the user's face, thereby improving the comfort and stability of the nasal plug catheter structure 100 when worn.

[0071] Continue to refer Figure 3On the basis of the above-mentioned embodiments, the two air inlet sections 232 can have a connecting bridge 240 therebetween. The two air inlet sections 232 can be completely symmetrical along the middle connecting bridge 240, and the connecting bridge 240 can be used to block the mutual communication of the two air inlet sections 232. It can be understood that when the user wears the nasal plug catheter structure 100 on the face, the connecting bridge 240 is placed at the philtrum position of the user. In order to make the connecting bridge 240 more fit the shape of the philtrum of the user's face, and also to prevent the user from touching the nasal plug catheter structure 100 when the upper lip is protruding due to changes in facial expressions such as crying or laughing, the two sides of the connecting bridge 240 in the first direction are gradually expanded and extended towards the air inlet sections 232. As shown in the figure, the structure of the connecting bridge 240 presents a crescent-shaped bulge, so that the nasal plug catheter structure 100 is more fit and comfortable when worn, and also avoids affecting the wearing effect due to changes in the user's expression.

[0072] It can also be understood that in high-flow respiratory humidification therapy, the vortex generated by the collision of high-flow gas not only affects the flow and pressure of the gas flow itself, but also causes the gas flowing out of the nasal plug catheter structure 100 to oscillate and produce noise, causing discomfort in the user's nasal cavity. The arrangement of the connecting bridge 240 can avoid the convection conflict of the gas flow of the two air inlet sections 232 at the connecting bridge 240 in the middle position after converging into the gas passage 230.

[0073] Continuing to refer to Figure 5 On the basis of the above-mentioned embodiments, in one possible implementation, at least one cross section of the middle part 2312 of the transition section 231 can be elliptical, and the cross section of the starting part 2311 of the transition section 231 and the cross section of the ending part 2313 of the transition section 231 can both be circular. It can be understood that the elliptical cross section of the transition section 231 can be gently fit to the nasolabial sulcus area of the user's face, which can increase the fit area and comfort of the contact with the face, and thus slow down the air outlet pressure and gas flow noise of the nasal plug structure 200.

[0074] In the embodiments of the present application, it can be understood that the air inlet direction of the air inlet section 232 is the same as the first direction, and the airway of the air inlet section 232 is consistent with the inflow direction of the gas flow through the pipeline 300. The direction of the gas through the airway of the transition section 231 changes, and because the diameter of the airway of the air inlet section 232 is larger and the diameter of the airway of the air outlet section 233 is smaller, the diameter of the airway changes along with the change in direction at the transition section 231.

[0075] It can be understood that the size and direction of the gas flowing into the air inlet section 232 are almost unchanged, so the cross section of the air inlet section 232 and the cross section of the starting part 2311 of the transition section 231 can be the same. Exemplarily, the cross section of the air inlet section 232 and the cross section of the starting part 2311 of the transition section 231 can both be circular. In addition, the transition section 231 changes in size and direction, so that the gas flows more smoothly in the gas channel 230. Exemplarily, the cross section of the starting part 2311 of the transition section 231 and the cross section of the ending part 2313 of the transition section 231 can both be circular, and the cross section of the middle part 2312 of the transition section 231 can be elliptical.

[0076] On the basis of the above embodiment, the included angle between at least one cross section of the middle part 2312 of the transition section 231 and the cross section of the starting part 2311 of the transition section 231 can range from 25° to 35°. Exemplarily, the included angle therebetween can be 28°. In the embodiment of the present application, it is verified by test and simulation simulation that the size ratio of the cross section diameter of the starting part 2311 of the transition section 231, the long axis length of the cross section of the middle part 2312 of the transition section 231, the short axis length of the cross section of the middle part 2312 of the transition section 231, and the cross section diameter of the ending part 2313 of the transition section 231 can be set in the range of 6-7:4.8-5.3:3.8-4.2:3. Exemplarily, the size ratio of the cross section diameter of the starting part 2311 of the transition section 231, the long axis length of the cross section of the middle part 2312 of the transition section 231, the short axis length of the cross section of the middle part 2312 of the transition section 231, and the cross section diameter of the ending part 2313 of the transition section 231 can be 6.5:5:4:3. In this way, the gas can flow more smoothly in the gas channel 230 in terms of direction and size change, and the pressure and noise of the air outlet 220 of the nasal plug structure 200 are smaller.

[0077] In the related art, the gas channel of the nasal plug structure is generally a through structure, and the air outlet section of the gas channel is completely perpendicular to the horizontal direction, but this will cause a counterflow conflict in the middle connecting part of the two side airways after the gas on both sides flows into the gas channel at the same time. In high flow respiratory humidification therapy, the vortex generated by the high flow rate gas collision not only affects the flow rate and pressure of the gas itself, but also causes the gas flowing out of the nasal plug structure to oscillate and produce noise, causing discomfort in the user's nasal cavity. As shown in Figure 6 It can be seen from the computer simulation that the vortex generated by the counterflow of the gas channel structure in the related art.

[0078] Further, when the nasal plug structure adopts a non-through structure without changing the perpendicular connection mode of the air outlet section and the air inlet section, the sharp change in direction of the high-speed gas flow inside the gas channel will still bring obvious impact. As shown inFigure 7 As shown in the computer simulation, it can be seen that after the gas flows in through the air inlet section, obvious air flow vortexes are generated at the connection between the starting end of the air outlet section and the horizontal air passage, and the gas flow rate entering the air outlet section increases.

[0079] Further, by changing the vertical connection between the air outlet section and the horizontal air inlet section into an increased transition section, and by changing the structure of the transition section with different shapes and sizes or changing the angle of the transition section with the vertical direction and testing and simulation, as shown in Figure 8 It can be found that if the cross section of the transition section always remains circular, obvious vortexes are generated at the starting cross section of the transition section, which destroys the stability of the air flow. As shown in Figure 9 If the angle between the transition section and the vertical direction is increased, the gas flowing through the starting end of the air outlet section also generates certain vortexes, which causes the local gas flow rate in the air outlet section to surge, thereby destroying the stability of the air flow.

[0080] In the embodiments of the present application, it can be understood that, as shown in Figure 10 By changing the structure of the transition section 231 with different shapes and sizes or changing the angle of the transition section 231 with the second direction and testing and simulation, it can be seen that, compared with the related art, under the premise of ensuring the air inlet flow rate, the gas flow rate can be concentrated at the air outlet 220 of the nasal plug structure 200, and the gas flow rate at the air outlet 220 is reduced, which does not cause impact on the user's nasal cavity. In this way, even if the air inlet flow rate is increased, obvious air flow conflict and vortexes are not generated, the noise of the air flow is effectively reduced, and the stability of the air flow is improved.

[0081] With reference to Figure 3 On the basis of the above-mentioned embodiments, the air outlet section 233 can be protrudingly arranged in the nasal plug structure 200 in the second direction, and the air outlet 220 is arranged to be curved towards the user. In a possible implementation manner, the air outlet direction of the air outlet section 233 is the same as the second direction, and in order to be more consistent with the structure in the user's nasal cavity, the air outlet section 233 can be inclined towards the center together with the nasal plug structure 200, and curved at a certain angle towards the user, thereby avoiding causing discomfort of the user's nasal cavity.

[0082] With reference to Figure 5 On the basis of the above-mentioned embodiments, the radial dimension of at least one position of the air outlet section 233 can be greater than or equal to the radial dimension of the starting region 2331 of the air outlet section 233 and the radial dimension of the ending region 2333 of the air outlet section 233, and the radial dimension of the air outlet section 233 is always less than the size of the user's nostril. It can be understood that the radial dimension of the air outlet section 233 is always less than the size of the user's nostril, so that the overall configuration of the air outlet section 233 does not constitute a sealing engagement with the user's nostril, but can be used to reduce the pressure of the flowing gas and suppress the generation of vortexes.

[0083] Continue to refer Figure 5 Based on the above embodiment, further, the radial dimension of the middle area 2332 of the air outlet segment 233 can be greater than or equal to the radial dimension of the starting area 2331 of the air outlet segment 233 and the radial dimension of the ending area 2333 of the air outlet segment 233, and the radial dimension of the air outlet segment 233 is always smaller than the size of the user's nostrils. In one possible embodiment, the air outlet segment 233 can be divided into three airway sections of equal length and different diameters. The cross-sections of the starting area 2331 of the air outlet segment 233, the middle area 2332 of the air outlet segment 233, and the ending area 2333 of the air outlet segment 233 can all be circular, but the radial dimensions of each cross-section are different. For example, the ratio of the cross-sections of the starting area 2331 of the outlet section 233, one cross-section of the middle area 2332 of the outlet section 233, another cross-section of the middle area 2332 of the outlet section 233, and the cross-section of the ending area 2333 of the outlet section 233 can be 1:1.05:1.05:0.8. Thus, as gas flows through the outlet section 233, by varying the dimensions of the different cross-sections of the outlet section 233, a certain buffer space can be provided for the gas flowing into the outlet section 233, thereby guiding the gas to flow smoothly and evenly out of the outlet 220, effectively achieving a gas buffering function and reducing the local pressure in the gas path.

[0084] In the embodiment of the present application, it is understood that the radial dimensions of the middle region 2332 of the air outlet section 233 gradually change toward the starting region 2331 and the ending region 2333 of the air outlet section 233, and the inner surface of the air outlet section 233 is a smooth and continuous curved surface. This allows the airflow through the air outlet section 233 to flow more evenly, reducing the impact on the user's nasal cavity and improving the user's wearing comfort.

[0085] Among them, in another possible embodiment, if the designed nasal plug catheter structure 100 needs to be used under a larger flow condition, illustratively, the gas flow rate can be greater than or equal to 30L / min, the length of the nasal plug structure 200 can be set to be longer and the inner diameter of the gas channel 230 can be larger. It is understandable that the air outlet section 233 can also be divided into four sections of airways of different diameters of equal length. Exemplarily, the size ratio of the four sections of the airway cross-section of the air outlet section 233 can be set in the range of 1:1.08:1.13~1.17:1.05:1. Through simulation verification, it can be seen that this ratio can provide a better gas buffering effect under the condition of a larger size of the gas channel 230, improve the stability of the gas, and reduce the impact on the user's nasal cavity.

[0086] refer to Figure 11On the basis of the above-mentioned embodiments, the pipe clamp surface-pasting assembly 400 can comprise a connecting portion 440. The connecting portion 440 can be located at the connecting position of the nasal plug structure 200 and the pipe 300. In a possible implementation, the connecting portion 440 can be provided with a receiving cavity 441, and the pipe 300 can be axially arranged in the receiving cavity 441 and connected with the nasal plug structure 200.

[0087] With reference to Figure 11 On the basis of the above-mentioned embodiments, the connecting portion 440 can comprise a clamping portion 410. The clamping portion 410 can be clamped at the connecting position of the nasal plug structure 200 and the pipe 300. In a possible implementation, in combination with Figure 4 It can be understood that, in the second direction, the size of the first end 411 is greater than or equal to the size of the second end 412. Since the pipe 300 is inserted into the air inlet 210 of the nasal plug structure 200, the diameter of the pipe 300 is less than or equal to the diameter of the air inlet 210 of the nasal plug structure 200, and thus the size of the first end 411 of the clamping portion 410 is greater than or equal to the size of the second end 412, so as to facilitate the clamping of the clamping portion 410 on the nasal plug structure 200 and the pipe 300.

[0088] With reference to Figure 11 On the basis of the above-mentioned embodiments, the first end 411 of the clamping portion 410 can be provided with a first through hole 4111 and a second through hole 4112. The first through hole 4111 and the second through hole 4112 can be oppositely arranged. Correspondingly, as Figure 4 shown, the nasal plug structure 200 can be provided with a first protruding portion 250 and a second protruding portion 260 on the outer surface of one end of the air inlet 210. The first protruding portion 250 and the second protruding portion 260 are protrudingly arranged on the outer surface of the nasal plug structure 200. It can be understood that the first through hole 4111 and the second through hole 4112 are respectively arranged in correspondence with the first protruding portion 250 and the second protruding portion 260, so that the first protruding portion 250 cooperates with the first through hole 4111, and the second protruding portion 260 cooperates with the second through hole 4112.

[0089] In the embodiments of the present application, as Figure 12As shown, the first through hole 4111 and the second through hole 4112 can be provided in an asymmetric shape. Exemplarily, one of the first through hole 4111 and the second through hole 4112 can be circular, and the other can be drop-shaped. Of course, in some other embodiments, one of the first through hole 4111 and the second through hole 4112 can also be a gourd-shaped structure, and the other can be a runway-shaped structure. The embodiments of the present application are not limited here. Correspondingly, the first protruding part 250 and the second protruding part 260 on the nasal plug structure 200 can also be provided in the same shape as the first through hole 4111 and the second through hole 4112. In this way, during the installation of the tube clamp face patch assembly 400, the consistency of the installation direction can be ensured through the asymmetric structure, which has a foolproof effect, prompts the installation direction, and avoids incorrect installation.

[0090] On the basis of the above-mentioned embodiments, it can also be understood that the first through hole 4111 and the second through hole 4112 can also be provided in the same shape, and the embodiments of the present application are not limited here. In one possible implementation, the size of the first through hole 4111 and the second through hole 4112 can be greater than or equal to the size of the first protruding part 250 and the second protruding part 260, so that the first protruding part 250 and the second protruding part 260 can move positions in the first through hole 4111 and the second through hole 4112, respectively. In this way, the adjustment of the position of the nasal plug structure 200 can be realized from the perspective of facing the user's face without removing the tube clamp face patch assembly 400, thereby improving the user's wearing comfort and oxygen inhalation comfort.

[0091] Reference Figure 13 On the basis of the above-mentioned embodiments, in another possible implementation, the connecting part 440 can include a clamping structure 420. The clamping structure 420 can be clamped and connected with the nasal plug structure 200. In one possible implementation, the end of the clamping structure 420 towards the nasal plug structure 200 can have a clamping part 421. The number of clamping parts 421 can be two, and the embodiments of the present application are not limited here. In the embodiments of the present application, the two clamping parts 421 can be oppositely arranged. Correspondingly, the outer surface of the end of the nasal plug structure 200 provided with the air inlet 210 can have two clamping grooves 270. It can be understood that the clamping part 421 and the clamping groove 270 are correspondingly arranged, so that the clamping part 421 and the clamping groove 270 are clamped and connected.

[0092] On the basis of the above-mentioned embodiments, the clamping groove 270 can be provided in a "concave" shape. In this way, when the tube clip facial patch assembly 400 is in contact with the nasal plug structure 200, the clamping portion 421 can be hooked on the clamping groove 270 of the nasal plug structure 200, thereby realizing the connection of the clamping portion 421 and the clamping groove 270. In addition, the clamping portion 421 can abut against the side wall of the clamping groove 270, so that the side wall of the clamping groove 270 can limit the rotation of the clamping portion 421 in the clamping groove 270, thereby realizing the positioning function.

[0093] Reference Figure 14 On the basis of the above-mentioned embodiments, in another possible implementation, the nasal plug structure 200 can be provided with two protrusions 280 on the outer surface of one end of the air inlet 210. Exemplarily, the two protrusions 280 can be located on the same horizontal line and extend in opposite directions on the outer surface of the nasal plug structure 200, so that the cross section of the air inlet section 232 of the nasal plug structure 200 is in a triangular structure. In this way, when the tube clip facial patch assembly 400 is connected with the nasal plug structure 200, the protrusions 280 of the nasal plug structure 200 can abut against the side wall of the opening of the tube clip facial patch assembly 400, so that the tube clip facial patch assembly 400 is in contact with the air inlet 210 of the nasal plug structure 200 at a fixed angle, limiting the rotation of the tube clip facial patch assembly 400.

[0094] On the basis of the above-mentioned embodiments, in another possible implementation, the nasal plug structure 200 can be provided with a first interlocking structure (not shown in the figure) on one end of the air inlet 210, and correspondingly, the tube clip facial patch assembly 400 can be provided with a second interlocking structure (not shown in the figure). The first interlocking structure can cooperate with the second interlocking structure.

[0095] In a possible implementation, the first interlocking structure can be detachably connected with the second interlocking structure. It can be understood that, in the connected state of the first interlocking structure and the second interlocking structure, the nasal plug structure 200 can rotate relative to the tube clip facial patch assembly 400 within a preset angle range. In this way, by rotating the angle between the nasal plug structure 200 and the tube clip facial patch assembly 400, the face contour of different users can be adapted, and the comfort and adaptability of the user wearing can be improved.

[0096] Reference Figure 15 and Figure 16On the basis of the above-mentioned embodiments, the pipe clamp face-pasting assembly 400 can further comprise a face-pasting structure 430. It can be understood that the face-pasting structure 430 can be used to position the face of the user and be set in close contact with the face of the user. Further, the face-pasting structure 430 can comprise a face-pasting piece 431, an adhesive piece 432 and an elastic piece 433. In a possible implementation, the adhesive piece 432 can be double-sided tape, and the elastic piece 433 can be a water gel dressing, and the face-pasting piece 431, the adhesive piece 432 and the elastic piece 433 can have the same shape, which is not limited in the embodiments of the present application.

[0097] With reference to the above Figure 15 and Figure 16 On the basis of the above-mentioned embodiments, in a possible implementation, the adhesive piece 432 is adhered to the face-pasting piece 431 and the elastic piece 433 through the adhesive surfaces on both sides of the adhesive piece 432, so that the face-pasting piece 431, the adhesive piece 432 and the elastic piece 433 are connected to form the face-pasting structure 430. The face-pasting piece 431 and the elastic piece 433 can have the same shape, and the adhesive piece 432 can have an outline smaller than or equal to the shape of the face-pasting piece 431 and the elastic piece 433, so that the adhesive piece 432 can be uniformly adhered to the face-pasting piece 431 and the elastic piece 433 when the face-pasting structure 430 is assembled.

[0098] With reference to the above Figure 15 and Figure 16 On the basis of the above-mentioned embodiments, for example, one end of the face-pasting piece 431 towards the nasal obstruction structure 200 can be arranged in parallel with the direction of the inlet section of the nasal obstruction structure 200, and the other end of the face-pasting piece 431 towards the pipe 300 can extend along the first direction and be bent away from the outlet section of the nasal obstruction structure 200. In a possible implementation, the bending angle can be 15-25°, for example, the bending angle can be 20°. In this way, the pipe clamp face-pasting assembly 400 can be more closely attached to the face when in contact with the face of the user, and the pipe 300 can also be more naturally bent along the bending arc of the face-pasting piece 431.

[0099] In the embodiments of the present application, in a possible implementation, the pipe 300 can have a support structure inside, for example, the support structure can be a spring threaded pipe. It can be understood that the pipe body of the pipe 300 can be made of a material having water permeability and air impermeability, which is not limited in the embodiments of the present application.

[0100] With reference to the above Figure 1Based on the above embodiment, the nasal plug catheter structure 100 may further include an adjustment structure 500. The adjustment structure 500 may be sleeved onto the tube 300. It is understood that the adjustment structure 500 can be used to adjust the length of the tube 300. Thus, after the nasal plug structure 200 is inserted into the user's nasal cavity, the tube 300 can be placed around the user's neck, and the adjustment structure 500 can slide back and forth on the tube 300 until it is fixed behind the user's neck, adapting to different users.

[0101] Continue to refer Figure 1 Based on the above embodiment, the nasal plug catheter structure 100 may further include an air inlet connector assembly 600. The air inlet connector assembly may be connected to the pipeline 300. It is understood that gas can pass through the air inlet connector assembly and flow into the interior of the pipeline 300, thereby allowing the gas to flow along the nasal plug structure 200 into the user's nasal cavity.

[0102] In the embodiment of the present application, the nasal plug catheter structure 100 provided herein incorporates a transition section 231 within the gas passage 230 of the nasal plug structure 200, thereby enhancing the smoothness of gas flow. This prevents significant airflow collisions and vortices even when the intake airflow increases, effectively reducing airflow oscillation and noise. Furthermore, the airflow exiting the nasal plug catheter structure 100 has a more uniform flow rate, minimizing impact on the user's nasal cavity and significantly improving user comfort.

[0103] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0104] It should be noted that phrases such as "in a specific implementation," "in some embodiments," "in this embodiment," and "exemplarily" mentioned in the specification indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0105] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0106] It should be readily understood that "on," "over," and "above" in the present disclosure are to be construed in their broadest sense, such that "on" means not only "directly on" but also includes the implication of "on" with intervening features or layers therebetween, and "over" or "above" not only includes the implication of "over" or "above" but also can include the implication of "over" or "above" with no intervening features or layers therebetween (i.e., directly on).

[0107] Furthermore, spatial relative terms, e.g., "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0108] Finally, it is to be understood that any other embodiments of the application which fall within the scope of the application's generality as limted herein are to be construed as falling within the scope of the present application. Accordingly, the application is not to be limited to only the specific procedures, compositions, and methods described herein, and any other application which is apparent from this disclosure, including equivalents, variations, and / or substitutions of those which have been described and / or pictured, without departing from the spirit and scope of the application. The scope of the application should be determined by the following claims.

Claims

1. A nasal congestion catheter structure, characterized in that: include: A nasal plug structure (200), wherein the nasal plug structure (200) is provided with two opposing air inlets (210) in a first direction and two parallel air outlets (220) in a second direction; a pipeline (300), the pipeline (300) being fixedly connected to the air inlet (210) of the nasal plug structure (200), and the pipeline (300) and the nasal plug structure (200) being in communication; a tube clamp surface patch assembly (400), the tube clamp surface patch assembly (400) being arranged on the nasal plug structure (200); A gas channel (230) is formed between the air inlet (210) and the air outlet (220) of the nasal plug structure (200), and the gas channel (230) includes a transition section (231) in a bent shape, and an angle between at least one cross section of a middle portion (2312) of the transition section (231) and a cross section of a starting portion (2311) of the transition section (231) is an acute angle, and the cross section of the middle portion (2312) of the transition section (231) and the cross section of the starting portion (2311) of the transition section (231) have different shapes.

2. The nasal catheter structure according to claim 1, characterized in that: The gas channel (230) further comprises an air inlet section (232) and an air outlet section (233), wherein the air inlet section (232) is connected to the air inlet (210), and the air outlet section (233) is connected to the air outlet (220); The starting portion (2311) of the transition section (231) is connected to the air inlet section (232), and the ending portion (2313) of the transition section (231) is connected to the air outlet section (233).

3. The nasal obstruction catheter structure according to claim 2, characterized in that: The angle between at least one cross section of the middle portion (2312) of the transition section (231) and the cross section of the starting portion (2311) of the transition section (231) is in the range of 25-35°; When the air outlet section (233) is positioned in the user's nostril, the transition section (231) is located in the nasolabial groove area of ​​the user's face, so that the nasal plug structure (200) can naturally extend along the user's face.

4. The nasal obstruction catheter structure according to claim 3, characterized in that: At least one cross-section of the middle portion (2312) of the transition section (231) is elliptical, and the cross-sections of the starting portion (2311) of the transition section (231) and the ending portion (2313) of the transition section (231) are both circular; The elliptical cross-section of the transition section (231) fits smoothly with the nasolabial groove area of ​​the user's face to reduce the air outlet pressure of the nasal obstruction structure (200).

5. The nasal obstruction catheter structure according to claim 2, characterized in that: At least one radial dimension of the air outlet section (233) is greater than or equal to the radial dimension of the starting area (2331) of the air outlet section (233) and the radial dimension of the ending area (2333) of the air outlet section (233), and the radial dimension of the air outlet section (233) is always smaller than the size of the user's nostril.

6. The nasal obstruction catheter structure according to claim 5, characterized in that: The radial dimension of the middle area (2332) of the air outlet section (233) is greater than or equal to the radial dimension of the starting area (2331) of the air outlet section (233) and the radial dimension of the ending area (2333) of the air outlet section (233), and the radial dimension of the air outlet section (233) is always smaller than the size of the user's nostrils.

7. The nasal obstruction catheter structure according to claim 6, characterized in that: The radial dimensions of the middle area (2332) of the air outlet section (233) toward the starting area (2331) of the air outlet section (233) and the ending area (2333) of the air outlet section (233) gradually change, and the inner cavity surface of the air outlet section (233) is a smooth and continuous curved surface.

8. The nasal catheter structure according to any one of claims 1 to 7, characterized in that: The tube clamp surface patch assembly (400) comprises a connecting portion (440), and the connecting portion (440) is located at the connection between the nasal plug structure (200) and the pipeline (300); The connecting portion (440) is provided with an accommodating cavity (441), and the pipeline (300) is axially arranged through the accommodating cavity (441) and is connected to the nasal plug structure (200).

9. The nasal obstruction catheter structure according to claim 8, characterized in that: The connecting portion (440) includes a clamping portion (410), wherein the clamping portion (410) has a first end (411) and a second end (412), wherein the first end (411) is connected to the nasal plug structure (200), and the second end (412) is connected to the pipeline (300), and in the second direction, the size of the first end (411) is greater than or equal to the size of the second end (412).

10. The nasal obstruction catheter structure according to claim 9, characterized in that: The first end (411) is provided with a first through hole (4111) and a second through hole (4112) arranged opposite to each other, and the outer surface of one end of the nasal plug structure (200) provided with the air inlet (210) is provided with a first protruding portion (250) and a second protruding portion (260); The first protrusion (250) cooperates with the first through hole (4111), and the second protrusion (260) cooperates with the second through hole (4112).

11. The nasal catheter structure according to claim 10, characterized in that: The size of the first through hole (4111) is greater than or equal to the size of the first protrusion (250), and the size of the second through hole (4112) is greater than or equal to the size of the second protrusion (260), so that the first protrusion (250) and the second protrusion (260) can move in the first through hole (4111) and the second through hole (4112), respectively.

12. The nasal catheter structure according to claim 8, characterized in that: The connecting portion (440) comprises: a snap-fit ​​structure (420), the snap-fit ​​structure (420) being snap-fitted and connected to the nasal plug structure (200); The end of the snap-fit ​​structure (420) facing the nasal plug structure (200) has two oppositely arranged snap-fit ​​portions (421), and the outer surface of the end of the nasal plug structure (200) provided with the air inlet (210) has two snap-fit ​​grooves (270), and the snap-fit ​​portions (421) and the snap-fit ​​grooves (270) are snap-fitted and connected.

13. The nasal catheter structure according to claim 8, characterized in that: The outer surface of one end of the nasal plug structure (200) provided with the air inlet (210) has two protrusions (280), and the protrusions (280) abut against the inner side wall of the tube clamp surface assembly (400).

14. The nasal catheter structure according to claim 8, characterized in that: The nose plug structure (200) is provided with a first interlocking structure on one end of the air inlet (210), and the tube clamp surface assembly (400) is provided with a second interlocking structure that cooperates with the first interlocking structure; The first interlocking structure and the second interlocking structure are detachably connected, and the nasal plug structure (200) rotates within a preset angle range relative to the tube clamp surface assembly (400) when the first interlocking structure and the second interlocking structure are connected.

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