Flow-adjustable nasal catheter

Abstract

The utility model relates to the field of medical auxiliary supplies, in particular to a flow-adjustable nasal catheter. The flow-adjustable nasal catheter comprises a nasal tube, a flow guide tube, a nasal oxygen head, a core body and an adjusting part, the flow guide tube is communicated with the nasal tube and is used for being communicated with an external air source; the nasal oxygen head is connected with the nasal tube and is communicated with the nasal tube; the core body is movably arranged in the nasal tube; the adjusting part is movably connected to the nasal tube and connected with the core body, and the adjusting part is used for moving relative to the nasal tube under the action of external force so as to drive the core body to move relative to the nasal tube, so that at least part of the communicating position of the nasal oxygen head and the nasal tube is opened, or the communicating position of the nasal oxygen head and the nasal tube is blocked. The flow-adjustable nasal catheter is simple in structure and convenient to use, a user can conveniently, automatically and rapidly adjust the flow of output oxygen in the using process, oxygen output can be automatically and rapidly suspended when use needs to be suspended, and therefore use convenience is improved, and meanwhile waste of an oxygen source can be reduced.

Description

Technical Field

[0001] This application relates to the field of medical auxiliary supplies, and more particularly, to a nasal catheter with adjustable flow rate. Background Art

[0002] Currently, oxygen delivery is a commonly used treatment method in clinical practice. Generally, a nasal oxygen tube is used to deliver oxygen to patients. One end of the oxygen delivery pipeline is connected to an oxygen supply source, and the other end is used by the patient through a nasal plug. After the oxygen supply source is opened, oxygen can enter the patient's nasal cavity through the oxygen delivery pipeline.

[0003] However, during the use of existing nasal oxygen tubes, the oxygen flow rate needs to be adjusted at the gas outlet end connected to the oxygen source or the oxygen supply connector. This method makes it inconvenient for users to adjust the oxygen amount by themselves and quickly pause the oxygen output when needed, resulting in many inconveniences in use. Utility Model Content

[0004] This application provides a nasal catheter with adjustable flow rate to improve the above problems.

[0005] Specifically, the present utility model is as follows:

[0006] A nasal catheter with adjustable flow rate includes a nasal tube, a diversion tube, a nasal oxygen head, a core body, and an adjusting member;

[0007] The diversion tube is connected to the nasal tube and is used to be connected to an external gas source; the nasal oxygen head is connected to the nasal tube and is in communication with the nasal tube; the core body is movably disposed within the nasal tube;

[0008] The adjusting member is movably connected to the nasal tube and is connected to the core body. The adjusting member is used to move relative to the nasal tube under the action of an external force to drive the core body to move relative to the nasal tube, so that at least a part of the communication between the nasal oxygen head and the nasal tube is opened, or the communication between the nasal oxygen head and the nasal tube is blocked.

[0009] In one embodiment of the present utility model, two rotatable connection seats are provided within the nasal tube, and the two rotatable connection seats are spaced apart along the axial direction of the nasal tube;

[0010] The core body is rotatably connected to the two rotatable connection seats around the axial direction of the nasal tube.

[0011] In one embodiment of the present utility model, the core body includes a core shaft and a plug; the core shaft extends along the axial direction of the nasal tube, and the core shaft is rotatably connected to the two rotatable connection seats; the plug is connected to the core shaft; the adjusting member is connected to the core shaft.

[0012] In one embodiment of the present utility model, the plug is a sector body provided around the axis of the nasal tube.

[0013] In an embodiment of the present utility model, the maximum central angle formed by the sealing plug relative to the axis of the nasal tube is the first central angle, and the maximum central angle formed by the conduction part of the nasal oxygen head and the nasal tube relative to the axis of the nasal tube is the second central angle;

[0014] The sum of the first central angle and the second central angle is less than 360°.

[0015] In an embodiment of the present utility model, along the axial direction of the nasal tube, an activity groove is provided on the outer periphery of the nasal tube corresponding to the area between the two rotating connection seats; the adjusting member is movably arranged in the activity groove.

[0016] In an embodiment of the present utility model, the adjusting member is a sector body arranged around the core shaft.

[0017] In an embodiment of the present utility model, a sealing ring is provided at the connection between the rotating connection seat and the nasal tube.

[0018] In an embodiment of the present utility model, the flow-adjustable nasal catheter further includes an ear hook, the ear hook is detachably connected to the diversion tube, and the ear hook is used for hanging on the ear of the user.

[0019] In an embodiment of the present utility model, the ear hook is provided with a clamping groove for clamping with the diversion tube.

[0020] The beneficial effects of the present utility model are:

[0021] The flow-adjustable nasal catheter includes a nasal tube, a diversion tube, a nasal oxygen head, a core body and an adjusting member; the diversion tube is communicated with the nasal tube and is used for communicating with an external gas source; the nasal oxygen head is connected to the nasal tube and is in conduction with the nasal tube; the core body is movably arranged in the nasal tube; the adjusting member is movably connected to the nasal tube and is connected to the core body, and the adjusting member is used for moving relative to the nasal tube under the action of an external force to drive the core body to move relative to the nasal tube, so that at least part of the conduction part of the nasal oxygen head and the nasal tube is opened, or the conduction part of the nasal oxygen head and the nasal tube is blocked. The flow-adjustable nasal catheter has a simple structure and is convenient to use. It is convenient for the user to adjust the oxygen output flow rate by himself quickly during use, and can also quickly pause the oxygen output by himself when it is necessary to pause the use, thereby improving the convenience of use and reducing the waste of oxygen source at the same time. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without creative efforts.

[0023] Figure 1Schematic structural diagram of the flow-adjustable nasal cannula provided by the present application;

[0024] Figure 2 Cross-sectional view of the flow-adjustable nasal cannula provided by the present application from the first perspective when the connection between the nasal tube and the nasal oxygen head is blocked;

[0025] Figure 3 Cross-sectional view of the flow-adjustable nasal cannula provided by the present application from the second perspective when the connection between the nasal tube and the nasal oxygen head is blocked;

[0026] Figure 4 Cross-sectional view of the flow-adjustable nasal cannula provided by the present application from the first perspective when the connection between the nasal tube and the nasal oxygen head is open;

[0027] Figure 5 Cross-sectional view of the flow-adjustable nasal cannula provided by the present application from the second perspective when the connection between the nasal tube and the nasal oxygen head is open;

[0028] Figure 6 Schematic structural diagram of the flow-adjustable nasal cannula provided by the present application when provided with ear hooks.

[0029] Reference numerals: 100 - Flow-adjustable nasal cannula; 110 - Nasal tube; 120 - Diversion tube; 130 - Nasal oxygen head; 140 - Core body; 150 - Adjusting member; 160 - Rotating connection seat; 141 - Core shaft; 142 - Plug; 111 - Movable groove; 170 - Ear hook. Detailed Description of the Specific Embodiment

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0032] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] Please refer to Figures 1-5 , this embodiment provides a nasal cannula 100 with adjustable flow rate, including a nasal tube 110, a diversion tube 120, a nasal oxygen head 130, a core body 140, and an adjusting member 150;

[0037] The diversion tube 120 is communicated with the nasal tube 110 and is used for communicating with an external gas source; the nasal oxygen head 130 is connected to the nasal tube 110 and is in conduction with the nasal tube 110; the core body 140 is movably arranged in the nasal tube 110;

[0038] The adjusting member 150 is movably connected to the nasal tube 110 and is connected to the core body 140. The adjusting member 150 is used to move relative to the nasal tube 110 under the action of an external force to drive the core body 140 to move relative to the nasal tube 110, so that at least part of the conduction part between the nasal oxygen head 130 and the nasal tube 110 is opened, or the conduction part between the nasal oxygen head 130 and the nasal tube 110 is blocked.

[0039] It should be noted that in this embodiment, the flow-adjustable nasal cannula 100 is configured with two nasal oxygen heads 130, and the two nasal oxygen heads 130 respectively correspond to two nostrils. Therefore, in the content of this embodiment, the setting of the two nasal oxygen heads 130 is taken as an example. Moreover, since the principle of blocking and opening the connection between the two nasal oxygen heads 130 and the nasal tube 110 to achieve flow adjustment is the same, this embodiment is described based on the oxygen output adjustment of one of the nasal oxygen heads 130. In other embodiments of the present invention, one nasal oxygen head 130 can also be provided.

[0040] Please refer to Figures 1-5 , the working principle of the flow-adjustable nasal cannula 100 is as follows:

[0041] The flow-adjustable nasal cannula 100 includes a nasal tube 110, a guiding tube 120, nasal oxygen heads 130, a core body 140, and an adjusting member 150; wherein, the guiding tube 120 is communicated with the nasal tube 110, and the guiding tube 120 is used for communicating with an external gas source; the nasal oxygen heads 130 are connected to the nasal tube 110 and are in communication with the nasal tube 110; the core body 140 is movably arranged in the nasal tube 110; the adjusting member 150 is movably connected to the nasal tube 110 and is connected to the core body 140. The adjusting member 150 is used to move relative to the nasal tube 110 under the action of an external force, so as to drive the core body 140 to move relative to the nasal tube 110, so that at least part of the connection between the nasal oxygen heads 130 and the nasal tube 110 is opened, or the connection between the nasal oxygen heads 130 and the nasal tube 110 is blocked.

[0042] Thus, during the use of the flow-adjustable nasal cannula 100, when the guiding tube 120 is communicated with an external gas source and the external gas source starts to supply oxygen, the user can operate the adjusting member 150 by himself / herself to adjust the opening size of the connection between the nasal oxygen heads 130 and the nasal tube 110, and further can adjust the oxygen flow rate delivered from the nasal tube 110 to the nasal oxygen heads 130;

[0043] Therefore, the flow-adjustable nasal cannula 100 has a simple structure and is convenient to use. It is convenient for the user to adjust the oxygen output flow rate by himself / herself quickly during use, and can also quickly pause the oxygen output by himself / herself when it is necessary to pause the use, thereby improving the convenience of use and reducing the waste of the oxygen source at the same time.

[0044] It should be noted that in the above steps, for the flow rate adjustment of the flow rate adjustable nasal cannula 100, after being connected to the gas source, with the oxygen supply flow rate of the gas source remaining unchanged, the user can adjust the flow rate by himself. The purpose is to facilitate the user to make fine adjustments to the flow rate, so as to improve the comfort of use, and at the same time facilitate the user's self-operation to reduce the user's dependence on medical staff. At the same time, it can play a role in temporarily suspending oxygen supply. The purpose is that when the user needs to temporarily suspend oxygen supply, the user can operate the adjusting member 150 to block the conduction part between the nasal oxygen head 130 and the nasal tube 110, without the need to adjust the working state or output state of the gas source, thereby improving the convenience and flexibility of operation and reducing the waste of oxygen source.

[0045] Please refer to Figures 1-5 , in this embodiment, in order to enable the adjusting member 150 to play a role in adjusting the flow rate, two rotating connection seats 160 are provided in the nasal tube 110, and the two rotating connection seats 160 are arranged at intervals along the axial direction of the nasal tube 110; the core body 140 is rotatably connected to the two rotating connection seats 160 around the axial direction of the nasal tube 110.

[0046] Specifically, the core body 140 includes a core shaft 141 and a plug 142; the core shaft 141 extends along the axial direction of the nasal tube 110, and the core shaft 141 is rotatably connected to the two rotating connection seats 160; the plug 142 is connected to the core shaft 141; the adjusting member 150 is connected to the core shaft 141. And along the axial direction of the nasal tube 110, an activity groove 111 is opened in the outer periphery of the nasal tube 110 opposite to the area between the two rotating connection seats 160; the adjusting member 150 is movably arranged in the activity groove 111.

[0047] Thus, when operating the adjusting member 150, the adjusting member 150 can be rotated to rotate relative to the activity groove 111, and then drive the core shaft 141 to rotate, so that the plug 142 can be driven by the core shaft 141 to rotate to a position where the plug 142 blocks the conduction part between the nasal oxygen head 130 and the nasal tube 110, or to a position where the conduction part between the nasal oxygen head 130 and the nasal tube 110 is opened. During this process, by adjusting the opening size of the conduction part between the nasal oxygen head 130 and the nasal tube 110, the function of adjusting the flow rate can be achieved.

[0048] In addition, please refer to Figures 1-5 , in order to enable the plug 142 to cooperate with the two nasal oxygen heads 130 during use, both ends of the core shaft 141 extend out of the rotating connection seat 160, and two plugs 142 are configured. The two plugs 142 are connected to both ends of the core shaft 141 and respectively correspond to one nasal oxygen head 130.

[0049] Please refer to Figures 1-5Moreover, when configuring the plug 142, in order to enable it to adjust the opening size of the connection between the nasal cannula head 130 and the nasal tube 110 by rotation or block it, the plug 142 is a sector body arranged around the axis of the nasal tube 110. The maximum central angle formed by the plug 142 relative to the axis of the nasal tube 110 is the first central angle, and the maximum central angle formed by the connection between the nasal cannula head 130 and the nasal tube 110 relative to the axis of the nasal tube 110 is the second central angle; the sum of the first central angle and the second central angle is less than 360°. That is, with such a setting, during the rotation of the plug 142, a position where the connection between the nasal cannula head 130 and the nasal tube 110 is fully opened, a position where it is completely blocked, and a position where it is partially opened can be formed.

[0050] Correspondingly, the adjusting member 150 is a sector body arranged around the core shaft 141. The principle of its operation will not be elaborated here. It only needs to be noted that the setting of the movable groove 111 can meet the position requirements of the aforementioned plug 142. In order to improve the sealing performance, a sealing ring is provided at the connection between the rotating connection seat 160 and the nasal tube 110.

[0051] In addition, please refer to Figures 1-6 . For the convenience of users, the flow-adjustable nasal catheter 100 further includes an ear hook 170. The ear hook 170 is detachably connected to the diversion tube 120, and the ear hook 170 is used for hanging on the user's ear to improve the stability of use in this way and prevent it from slipping or detaching relative to the user. Specifically, the ear hook 170 is provided with a card slot for clamping with the diversion tube 120.

[0052] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow-adjustable nasal catheter, characterized in that: The flow-adjustable nasal catheter comprises a nasal tube, a flow guide tube, a nasal oxygen tip, a core body and an adjusting member; The guide tube is connected to the nasal tube, and the guide tube is used to communicate with an external air source; the nasal oxygen head is connected to the nasal tube and communicates with the nasal tube; the core body is movably arranged in the nasal tube; The adjusting member is movably connected to the nasal tube and to the core body. The adjusting member is used to move relative to the nasal tube under the action of external force to drive the core body to move relative to the nasal tube, so that at least part of the connection between the nasal oxygen head and the nasal tube is opened, or the connection between the nasal oxygen head and the nasal tube is blocked.

2. The flow-adjustable nasal catheter according to claim 1, characterized in that: Two rotating connection seats are arranged in the nasal tube, and the two rotating connection seats are arranged at intervals along the axis direction of the nasal tube; The core body is rotatably connected to the two rotating connection seats around the axial direction of the nasal tube.

3. The flow-adjustable nasal catheter according to claim 2, characterized in that: The core body includes a core shaft and a sealing plug; the core shaft extends along the axial direction of the nasal tube, and the core shaft is rotatably connected to the two rotating connecting seats; the sealing plug is connected to the core shaft; and the adjusting member is connected to the core shaft.

4. The flow-adjustable nasal catheter according to claim 3, characterized in that: The sealing plug is a fan-shaped body arranged around the axis of the nasal tube.

5. The flow-adjustable nasal catheter according to claim 4, characterized in that: The maximum central angle formed by the sealing plug relative to the axis of the nasal tube is a first central angle, and the maximum central angle formed by the connection point between the nasal oxygen tip and the nasal tube relative to the axis of the nasal tube is a second central angle; The sum of the first central angle and the second central angle is less than 360°.

6. The flow-adjustable nasal catheter according to claim 3, characterized in that: Along the axial direction of the nasal tube, a movable groove is opened on the outer circumference of the nasal tube in the area between the two rotating connecting seats; the adjusting member is movably arranged in the movable groove.

7. The flow-adjustable nasal catheter according to claim 6, characterized in that: The adjusting member is a fan-shaped body arranged around the core shaft.

8. The flow-adjustable nasal catheter according to claim 2, characterized in that: A sealing ring is provided at the connection between the rotating connecting seat and the nasal tube.

9. The flow-adjustable nasal catheter according to any one of claims 1 to 8, characterized in that: The flow-adjustable nasal catheter further comprises a hanging ear, which is detachably connected to the flow guide tube and is used to be hung on the ear of the user.

10. The flow-adjustable nasal catheter according to claim 9, characterized in that: The hanging ear is arranged in a slot which is connected with the guide pipe.

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