CN217391359U - Nasal cannula and nasal cannula assembly - Google Patents
Nasal cannula and nasal cannula assembly Download PDFInfo
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- CN217391359U CN217391359U CN202220274324.4U CN202220274324U CN217391359U CN 217391359 U CN217391359 U CN 217391359U CN 202220274324 U CN202220274324 U CN 202220274324U CN 217391359 U CN217391359 U CN 217391359U
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- balloon
- air bag
- cavity
- piston
- nasal cannula
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Abstract
The utility model relates to the technical field of medical equipment, a nasal cannula and nasal cannula subassembly is provided. The nasal cannula comprises a trachea, a first air bag, a first external air bag, a second air bag and a second external air bag; the first air bag and the second air bag are arranged on the air pipe; the first air bag is sleeved on the trachea inserted into the air passage, and the second air bag is sleeved on the trachea of the nasal cavity when inserted into the air passage; the first outer bladder is in communication with the first bladder; the second outer bladder is in communication with the second bladder. The nasal cannula assembly includes an inflation unit and/or a balloon pressure gauge, and the nasal cannula. The utility model discloses nasal cannula alleviates the oppression to the nasal part cartilage, protects nasal part mucosa and skin, and the specially adapted oral cavity maxillofacial tumour, orthognathic operation.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a nasal cannula and nasal cannula subassembly.
Background
Nasal intubation is one type of endotracheal intubation in which a nasal cannula is inserted through the nasal cavity into the trachea of a patient. When the nasal cannula is applied to the department of anesthesia for oral and maxillofacial tumors and orthognathic operations, a patient needing to keep the nasal cannula to assist respiration needs to be fixed in the opposite direction of the nasal cannula towards the head in order to fully expose the operation visual field and facilitate the operation, the nasal cannula needs to be fixed in the operation, the nose is used as a protruding point to be pressed for a long time to cause congestion of local nasal mucosa, the edge of the nostril is ischemic, and the skin mucosa is damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nasal cannula and nasal cannula subassembly to solve current nasal cannula and arouse local nasal cavity mucosa congestion, the nostril edge is ischemic, and skin mucosa receives the problem of harm.
In order to achieve the above objects and other related objects, the present invention adopts the following technical solutions:
the utility model provides a nasal cannula in a first aspect, which comprises a trachea, a first air bag, a first external air bag, a second air bag and a second external air bag;
the first air bag and the second air bag are arranged on the air pipe; the first air bag is sleeved on the trachea inserted into the air passage, and the second air bag is sleeved on the trachea of the nasal cavity when inserted into the air passage;
the first outer balloon is in communication with the first balloon;
the second outer bladder is in communication with the second bladder.
Preferably, a first air bag communicating cavity is arranged on the inner wall of the air pipe, one end of the first air bag communicating cavity is communicated with the first external air bag, and the other end of the first air bag communicating cavity is communicated with the first air bag; and/or a second air bag communicating cavity is arranged on the inner wall of the air pipe, one end of the second air bag communicating cavity is communicated with the second outer air bag, and the other end of the second air bag communicating cavity is communicated with the second air bag.
Preferably, the second balloon, when inflated, has a cross-sectional cavity area that decreases progressively from the distal first balloon end to the proximal first balloon end.
More preferably, when the second airbag is inflated, the second airbag is in a circular truncated cone shape.
More preferably, when the second air bag is inflated, the diameter of the second air bag far away from the end of the first air bag is 0.8-1.2 cm, and the diameter of the second air bag near the end of the first air bag is 0.6-1 cm.
Preferably, when the second airbag is not inflated, the distance from the far first airbag end of the second airbag to the near second airbag end of the first airbag is 26.5-27.5 cm, and the distance from the near first airbag end of the second airbag to the near second airbag end of the first airbag is 21.5-22.5 cm.
Preferably, one-way valves are arranged in the cavities of the first external air bag and the second external air bag;
or the first external airbag and the second external airbag are both piston external airbags, the piston external airbag comprises a piston interface and an airbag, the piston interface is internally provided with a piston interface cavity, the airbag is sleeved outside the piston interface, the cavity of the airbag is communicated with the piston interface cavity, a piston unit is arranged in the piston interface cavity, and when the airbag is not inflated, the piston interface is sealed by the piston unit; when the air is inflated, the piston unit does not seal the piston interface.
More preferably, the piston interface cavity includes first piston interface cavity and the second piston interface cavity of intercommunication, the piston unit is including the inflation joint, connecting rod, sealing member, the spring support pole and the end cap of outer sleeve spring that connect gradually, the inflation joint is located in the first piston interface cavity, the piston unit is equipped with a plurality of gas passages, and each gas passage link up the inflation joint with each gas passage is equipped with import and export, the import is located inflation joint's free end, the export is located just more on the connecting rod the import is nearly the sealing member, the sealing member with outer sleeve spring's spring support pole is located the second piston interface cavity, the end cap is located in the cavity of gasbag.
Preferably, the first balloon end of the far trachea is provided with an intubation interface.
A second aspect of the present invention provides a nasal cannula assembly, comprising an inflation unit and/or an air bag pressure gauge, and the nasal cannula, wherein the inflation unit is respectively communicated with the first air bag and the second air bag when the nasal cannula is inflated; and during pressure measurement, the air bag pressure measuring meter is respectively communicated with the first air bag and the second air bag.
The utility model discloses at least one in following beneficial effect has:
1) the utility model discloses nasal cannula alleviates the oppression to the nasal part cartilage, protects nasal part mucosa and skin, and the specially adapted oral cavity maxillofacial tumor, orthognathic operation.
2) The utility model discloses nasal cannula includes the second gasbag, supports the nostril, alleviates the impetus, and sore is pressed to the prevention nasal part.
3) The utility model discloses nasal cannula clinical use is convenient, is worth promoting.
Drawings
Fig. 1 is a schematic structural view of the nasal cannula of the present invention.
Fig. 2 is a schematic structural view of the external air bag of the piston in the nasal cannula of the utility model.
Reference numerals
1 trachea
11 cannula interface
2 first air bag
3 first external airbag
4 second air bag
5 second external airbag
6 inflation unit
71 piston interface
72 air bag
73 piston unit
731 gas-filled joint
732 connecting rod
7321 outlet port
733 sealing element
734 outer casing spring
735 spring support bar
736 bulkhead
Detailed Description
In the description of the present invention, it should be noted that the structure, ratio, size, etc. shown in the attached drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by the people familiar with the technology, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the ratio relationship or the adjustment of the size should still fall within the range that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that can be achieved. While the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, a nasal cannula comprises a trachea 1, a first balloon 2, a first outer balloon 3, a second balloon 4 and a second outer balloon 5;
the air pipe 1 is provided with the first air bag 2 and the second air bag 4; the first air bag 2 is sleeved on a trachea inserted into an air passage, and the second air bag 4 is sleeved on the trachea of the nasal cavity when inserted into the air passage;
the first outer balloon 3 is in communication with the first balloon 2;
the second outer balloon 5 is in communication with the second balloon 4.
The first air bag 2 plays the roles of sealing, relieving the injury of airway mucosa and internal fixation.
The second air bag 4 supports the nostril, ensures that the catheter is positioned at the central position of the nasal cavity, and the air bag is contacted with the mucosa of the nasal part, thereby lightening the force application point, preventing the nasal part from pressing sore and lightening the oppression of the intubation tube for the oral and maxillofacial surgery on the cartilage of the nasal part. The second air bag 4 is sleeved on the trachea of the nasal cavity when inserted into the airway and is tightly combined with the trachea 1, so that the damage of the trachea 1 to the surrounding skin mucosa can be directly reduced.
In a specific embodiment, a first air bag communication cavity is arranged on the inner wall of the air tube 1, one end of the first air bag communication cavity is communicated with the first external air bag 3, and the other end of the first air bag communication cavity is communicated with the first air bag 2; and/or a second air bag communicating cavity is arranged on the inner wall of the air pipe 1, one end of the second air bag communicating cavity is communicated with the second outer air bag 5, and the other end of the second air bag communicating cavity is communicated with the second air bag 4. The inner wall 1 is provided with a first air bag communicating cavity which can keep the outer wall of the air pipe smooth and is easy to place the pipe.
In a particular embodiment, the cross-sectional area of the cavity of the second balloon 4 decreases from the distal first balloon end to the proximal first balloon end as the second balloon 4 is inflated. When in use, the second air bag is positioned in the nasal cavity.
In a specific embodiment, when the second airbag 4 is inflated, the second airbag 4 has a circular truncated cone shape.
In a specific embodiment, when the second balloon 4 is inflated, the diameter of the second balloon 4 at the end far from the first balloon is 0.8-1.2 cm, and the diameter at the end near the first balloon is 0.6-1 cm. The nose pad is placed in a nasal cavity when being used, can be movably fixed upwards and just attached to the tip of the nose, and is comfortable.
In a specific embodiment, when the second airbag 4 is not inflated, the distance from the first airbag end far away from the first airbag 4 to the second airbag end close to the first airbag 2 is 26.5-27.5 cm, and the distance from the first airbag end close to the second airbag 4 to the second airbag end of the first airbag 2 is 21.5-22.5 cm. The design is beneficial to being placed in the nasal cavity when in use, can move upwards to fix and just fit with the nasal tip, and is comfortable. In a specific embodiment, one-way valves are provided in the cavities of the first and second outer air bags 3, 5; when the air bag is inflated, the one-way valve is opened, and the first air bag 2 and the second air bag 4 are respectively inflated through the first external air bag 3 and the second external air bag 5; after inflation, the inflated gas of the first airbag 2 and the second airbag cannot escape due to the one-way valve.
Or, the first external airbag 3 and the second external airbag 5 are both piston external airbags, the piston external airbags include a piston interface 71 and an airbag 72, the piston interface cavity is internally provided with a piston interface, the airbag 72 is externally sleeved on the piston interface 71, the cavity of the airbag is communicated with the piston interface cavity, a piston unit 73 is arranged in the piston interface cavity, and when the airbag is not inflated, the piston unit 73 seals the piston interface; when inflated, the piston unit 73 does not seal the piston interface.
In a specific embodiment, as shown in fig. 2, the piston interface cavity includes a first piston interface cavity and a second piston interface cavity which are communicated with each other, the piston unit 73 includes an inflation joint 731, a connecting rod 732, a sealing member 733, and a spring support rod 735 and a plug 736 for enclosing the spring 734, the inflation joint 731 is disposed in the first piston interface cavity, the piston unit is provided with a plurality of gas channels, each gas channel penetrates through the inflation joint 731 and the connecting rod 732, each gas channel is provided with an inlet and an outlet, the outlet 7321 is disposed on the connecting rod and is closer to the sealing member 733 than the inlet, the sealing member 733 and the spring support rod 735 for enclosing the spring 734 are disposed in the second piston interface cavity, and the plug 736 is disposed in the cavity of the airbag. When the piston is not inflated, the outer sleeve spring is not extruded, and the sealing element seals (closes) the second piston interface cavity; when the air bag is inflated, the inflation unit is connected with the inflation interface, the outer sleeve spring is extruded, the sealing element moves downwards, the sealing element does not seal (communicate) with the second piston interface cavity, inflation gas enters the gas channel from the inlet and is discharged from the outlet, and the outlet is positioned in the second piston interface cavity so as to enter the air bag.
In a specific embodiment, the first balloon end of the trachea 1 is provided with an intubation interface 11. The cannula interface 11 is used for connection with a ventilator.
A nasal cannula assembly comprises an inflation unit 6 and/or a balloon pressure gauge and the nasal cannula, wherein when the nasal cannula is inflated, the inflation unit 6 is respectively communicated with a first balloon 2 and a second balloon 4; when pressure is measured, the air bag pressure measuring gauge is respectively communicated with the first air bag 2 and the second air bag 4.
The inflation unit may be a syringe (without a needle). The needle connecting part of the injector can be connected with the inflation connector of the piston unit, such as sleeved connection, the injector is removed, and the sealing element is closed, namely the air bag is in an inflation state. When the syringe is connected, the syringe presses the spring, and the sealing element is not closed, namely the air bag is in an inflated state. It can be seen that gas can be injected into the first balloon 2 and said second balloon 4 by means of an inflation unit 6, such as a syringe.
The air bag pressure gauge is used for monitoring the pressure of the first air bag 2 and the second air bag 4, and the pressure value is preferably 20-25 mmHg.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A nasal cannula is characterized by comprising a trachea (1), a first air bag (2), a first external air bag (3), a second air bag (4) and a second external air bag (5);
the air pipe (1) is provided with the first air bag (2) and the second air bag (4); the first air bag (2) is sleeved on a trachea inserted into an air passage, and the second air bag (4) is sleeved on the trachea of the nasal cavity when inserted into the air passage;
the first external airbag (3) is in communication with the first airbag (2);
the second outer balloon (5) is in communication with the second balloon (4).
2. The nasal cannula according to claim 1, characterized in that a first balloon communicating chamber is provided on the inner wall of the trachea (1), one end of the first balloon communicating chamber is communicated with the first outer balloon (3) and the other end is communicated with the first balloon (2); and/or a second air bag communicating cavity is arranged on the inner wall of the air pipe (1), one end of the second air bag communicating cavity is communicated with the second outer air bag (5), and the other end of the second air bag communicating cavity is communicated with the second air bag (4).
3. The nasal cannula according to claim 1, wherein the second balloon (4) is inflated such that the cross-sectional area of the cavity decreases from the end distal to the first balloon to the end proximal to the first balloon.
4. The nasal cannula according to claim 3, wherein the second balloon (4) is frustoconical when the second balloon (4) is inflated.
5. The nasal cannula according to claim 4, wherein the second balloon (4) has a diameter of 0.8 to 1.2cm at the distal end of the first balloon and a diameter of 0.6 to 1cm at the proximal end of the first balloon when the second balloon (4) is inflated.
6. The nasal cannula according to claim 1, wherein when the second balloon (4) is uninflated, the distal first balloon end of the second balloon (4) is located between 26.5 and 27.5cm from the proximal second balloon end of the first balloon (2), and the proximal first balloon end of the second balloon (4) is located between 21.5 and 22.5cm from the proximal second balloon end of the first balloon (2).
7. The nasal cannula according to claim 1, wherein a one-way valve is provided in the cavity of the first outer balloon (3) and the second outer balloon (5);
or the first external airbag (3) and the second external airbag (5) are both piston external airbags, each piston external airbag comprises a piston interface and an airbag, each piston interface is internally provided with a piston interface cavity, each airbag is sleeved outside the corresponding piston interface, the cavity of each airbag is communicated with the corresponding piston interface cavity, a piston unit is arranged in each piston interface cavity, and when the piston interfaces are not inflated, the piston units seal the piston interfaces; when the air is inflated, the piston unit does not seal the piston interface.
8. The nasal cannula according to claim 7, wherein the piston interface cavity comprises a first piston interface cavity and a second piston interface cavity that are in communication, the piston unit comprises an inflation connector, a connecting rod, a sealing element, a spring support rod of a wrap spring, and a plug that are sequentially connected, the inflation connector is disposed in the first piston interface cavity, the piston unit is provided with a plurality of gas passages, each gas passage is communicated with the inflation connector and the connecting rod, each gas passage is provided with an inlet and an outlet, the inlet is disposed at a free end of the inflation connector, the outlet is disposed on the connecting rod and closer to the sealing element than the inlet, the sealing element and the spring support rod of the wrap spring are disposed in the second piston interface cavity, and the plug is disposed in the cavity of the air bag.
9. A nasal cannula according to claim 1, characterised in that the first balloon end of the trachea (1) distal is provided with an intubation interface (11).
10. A nasal cannula assembly, comprising an inflation unit (6) and/or a balloon manometer, and a nasal cannula according to any of claims 1 to 8, the inflation unit (6) being in communication with the first balloon (2) and the second balloon (4), respectively, when inflated; when pressure is measured, the air bag pressure measuring gauge is respectively communicated with the first air bag (2) and the second air bag (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220274324.4U CN217391359U (en) | 2022-02-10 | 2022-02-10 | Nasal cannula and nasal cannula assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220274324.4U CN217391359U (en) | 2022-02-10 | 2022-02-10 | Nasal cannula and nasal cannula assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217391359U true CN217391359U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220274324.4U Active CN217391359U (en) | 2022-02-10 | 2022-02-10 | Nasal cannula and nasal cannula assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217391359U (en) |
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2022
- 2022-02-10 CN CN202220274324.4U patent/CN217391359U/en active Active
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