Oropharyngeal airway

Abstract

The utility model discloses an oropharynx airway, which belongs to the technical field of medical apparatus and instruments, and comprises: a bent tube capable of extending into an oral cavity; the flange is connected with the bent pipe, the diameter of the outer edge of the flange is larger than that of the bent pipe, and the flange can abut against the lip through the air bag so as to limit the bent pipe to move towards the oral cavity; the flange is connected with the two air bags, and the two air bags are connected with the outside through the pipeline structure, so that the two air bags can have different expansion states, the two air bags can alternately make contact with the skin near the lips of the patient and press the skin at different positions, and the possibility that the lips have pressure sores is reduced.

Description

Technical Field

[0001] The present application belongs to the field of medical device technology, specifically an oropharyngeal airway. Background Art

[0002] The oropharyngeal airway, also known as the oropharyngeal ventilator, is a non-invasive ventilation tube that can separate the retracted tongue root from the upper pharyngeal wall and quickly open the patient's airway. It is mainly suitable for patients who are under anesthesia or coma and have upper airway obstruction, making the patient's breathing unobstructed and maintaining the patient's normal breathing needs.

[0003] The wing edge of the oropharyngeal airway can contact the patient's lips, limiting the oropharyngeal airway from entering the oral cavity, preventing the patient from swallowing the oropharyngeal airway, and preventing the oropharyngeal airway from being inserted too deeply. Some patients need to wear an oropharyngeal airway for a long time due to coma or other diseases, so that the wing edge is squeezed against the patient's lips under the action of gravity and other forces. Under long-term squeezing, the patient's lips are prone to persistent ischemia and hypoxia, and local tissue malnutrition, ultimately leading to local tissue ulceration and defect, and pressure ulcers, which greatly affect the patient's health status and easily aggravate the condition of patients who are in a coma for a long time. Utility Model Content

[0004] In order to alleviate the squeezing of a single position of the patient's lips by the wing edge of the oropharyngeal airway, ensure the normal blood supply to the patient's lips, and avoid the occurrence of pressure sores near the patient's lips, the present application provides an oropharyngeal airway.

[0005] An oropharyngeal airway comprises: a curved tube, which can be extended into the oral cavity; a flange, which is connected to the curved tube, the outer edge diameter of the flange is larger than the diameter of the curved tube, and the flange can abut against the lip through an air bag to limit the movement of the curved tube into the oral cavity; the flange is connected to two air bags, and the two air bags are respectively connected to the outside world through a pipeline structure so that the two air bags can have different expansion states.

[0006] In one embodiment of the present application, the pipeline structure includes a main air circuit and two branch air circuits connected to the main air circuit, the two branch air circuits are respectively connected to two air bags, the main air circuit is connected to the two branch air circuits through an air circuit control unit, and the main air circuit can be connected to one of the air bags to change the expansion state of the air bag.

[0007] In one embodiment of the present application, the air circuit control unit includes a three-way stopcock, and the main air circuit can be connected to one of the branch air circuits through the three-way stopcock, or the connection between one of the inflated airbags and the outside world can be disconnected through the three-way stopcock.

[0008] In one embodiment of the present application, the pipeline structure includes a main air circuit, and the main air circuit is plugged and matched with the nipple of the syringe to inflate or extract air from the main air circuit through the syringe.

[0009] In one embodiment of the present application, two airbags are arranged along the circumference of the bending tube, and one of the airbags is arranged on the inner side of the other airbag in the extending direction.

[0010] In one embodiment of the present application, the oropharyngeal airway further comprises two air bags connected to the wings, and the four air bags are arranged around the curved tube array.

[0011] In one embodiment of the present application, two airbags that are arranged opposite to each other with respect to the bending tube are connected to each other so that the two airbags can have the same expansion state.

[0012] In one embodiment of the present application, the bag wall of the airbag includes a folded bag wall, and the airbag can be in a contracted state and abut against the flange under the action of the folded bag wall.

[0013] In one embodiment of the present application, the capsule wall of the airbag further comprises a silicon capsule wall, and the silicon capsule wall is connected to the wing edge by folding the capsule wall. When the airbag is inflated, the silicon capsule wall can abut against the skin.

[0014] In one embodiment of the present application, the bending tube includes a bite pad section and a bending section, one end of the bite pad section is connected to the flange, and the other end is connected to the bending section.

[0015] The present application has at least the following beneficial effects:

[0016] 1. The two airbags in the present application can have different expansion states. When one of the airbags is expanded, the wing can contact the human skin through the expanded airbag. The airbag can provide a force to the wing away from the human skin, thereby limiting the bending tube from penetrating into the oral cavity. During this process, the other airbag is in a contracted state, a natural state, or a state that does not contact the skin after expansion, thereby only one airbag is in contact with the skin. After a period of time, the airbag in contact with the skin is deflated so that the expansion degree of the other airbag reaches a degree that can contact the skin, thereby changing the position of the airbag squeezing, and the skin at different positions is compressed in turn, thereby avoiding the situation where the skin at a single position is compressed for a long time and pressure sores occur.

[0017] 2. By means of a main air path and two branch air paths, the pipelines connected to the airbag are simplified, and the weight of the pipelines at the flange is reduced, thereby reducing the pressure of the flange on the skin through the airbag.

[0018] 3. By arranging four airbags around the bending tube array, two airbags arranged relative to the bending tube can have the same expansion state, thereby ensuring the stability of the flange placed on the skin while changing the contact position between the airbag and the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an exemplary implementation of the present application;

[0020] Figure 2 is a schematic structural diagram of an exemplary implementation of the second airbag in the present application;

[0021] Figure 3 It is a structural schematic diagram of an exemplary implementation of the main gas circuit in the present application;

[0022] Figure 4 It is a structural schematic diagram of an exemplary implementation method when the three-way cock in the present application is rotated and the main gas path is connected with the first gas path;

[0023] Figure 5 It is a structural schematic diagram of an exemplary implementation method when the three-way stopcock in the present application closes the first gas path;

[0024] Figure 6 It is a structural schematic diagram of an exemplary implementation method when the three-way stopcock in the present application is connected with the second gas path;

[0025] Figure 7 is a structural schematic diagram of an exemplary implementation of the second airbag in the present application when it is expanded;

[0026] Figure 8 It is a structural schematic diagram of an illustrative implementation mode when four airbags are provided in the present application.

[0027] In the figure:

[0028] 101, flange;

[0029] 201, first airbag; 202, second airbag; 203, folded capsule wall; 204, silicon capsule wall;

[0030] 301, first gas path; 302, second gas path; 303, main gas path; 304, three-way cock;

[0031] 401, bending tube; 402, tooth pad section; 403, bending section. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0033] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0034] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0035] See also Figures 1 to 8 Understand this application.

[0036] See also Figure 1 , an oropharyngeal airway, comprising: a curved tube 401, which can be extended into the oral cavity; a flange 101, which is connected to the curved tube 401, the outer edge diameter of the flange 101 is larger than the diameter of the curved tube 401, and the flange 101 can abut against the lips through an airbag to limit the movement of the curved tube 401 into the oral cavity; the flange 101 is connected to two airbags, and the two airbags are respectively connected to the outside world through a pipeline structure so that the two airbags can have different expansion states. In order to better describe the present application, the two airbags are named as the first airbag 201 and the second airbag 202 respectively.

[0037] See also Figure 1 The first airbag 201 and the second airbag 202 are connected to the flange 101 respectively, and the first airbag 201 is inflated through the pipeline structure. After the first airbag 201 is inflated, the connection between the first airbag 201 and the outside is closed through the pipeline structure, so that the first airbag 201 remains in an inflated state. When the curved tube 401 is inserted into the patient's oral cavity, see Figure 2 The flange 101 contacts the skin near the patient's lips through the inflated first airbag 201, thereby limiting the bending tube 401 from penetrating into the oral cavity. After a period of time, the first airbag 201 is deflated through the pipeline structure, and then the second airbag 202 is inflated by the pipeline structure, so that the second airbag 202 is inflated, and then the connection between the second airbag 202 and the outside is closed by the pipeline structure, so that the second airbag 202 remains in an inflated state. Figure 7The flange 101 no longer contacts the skin through the first airbag 201, but contacts the skin through the second airbag 202. Due to the different positions of the first airbag 201 and the second airbag 202, the flange 101 contacts the skin at different positions through the first airbag 201 and the second airbag 202, so that the two airbags contact different positions of the patient alternately to reduce the pressure on the skin at a single position, thereby reducing the possibility of pressure sores on the skin.

[0038] See also Figure 3 In one embodiment of the present application, the pipeline structure includes a main air circuit 303 and two branch air circuits connected to the main air circuit 303, the two branch air circuits are respectively connected to two air bags, the main air circuit 303 is connected to the two branch air circuits through an air circuit control unit, the main air circuit 303 can be connected to one of the air bags to change the expansion state of the air bag, further, the air circuit control unit includes a three-way stopcock 304, the main air circuit 303 can be connected to one of the branch air circuits through the three-way stopcock 304, or, the connection between one of the air bags in the expansion state and the outside world can be disconnected through the three-way stopcock 304.

[0039] In order to better describe the present application, the branch air path connected to the first airbag 201 is named as the first air path 301, and the branch air path connected to the second airbag 202 is named as the second air path 302. Figure 3 When the first airbag 201 needs to be expanded, the valve core of the three-way cock 304 rotates, so that the main air path 303 is connected with the first air path 301, see Figure 4 , the first airbag 201 can be inflated through the main air path 303 and the first air path 301, and then the valve core is rotated to disconnect the first air path 301 from the main air path 303, see Figure 5 , so that the first airbag 201 remains in an expanded state. When the second airbag 202 needs to be expanded, the valve core can be rotated, and the main air path 303 is connected to the first air path 301. The gas in the first airbag 201 can enter the outside through the main air path 303 and the first air path 301, reducing the expansion degree of the first airbag 201, or reducing the air pressure in the first airbag 201 to a level lower than the outside atmospheric pressure, so that the first airbag 201 shrinks, and the valve core is rotated to make the second air path 302 communicate with the main air path 303. See Figure 6, the second airbag 202 is inflated through the main air path 303 and the second air path 302, so that the second airbag 202 expands to a state where it can contact the skin, the valve core is rotated to close the connection between the main air path 303 and the second air path 302, so that the second airbag 202 remains in an inflated state, and the flange 101 contacts the skin only through the second airbag 202, so that different airbags squeeze the skin at different positions. After a period of time, the first airbag 201 is inflated and the second airbag 202 is deflated, so that the flange 101 contacts the patient's skin only through the first airbag 201, and does not contact the patient's skin through the second airbag 202. After the first airbag 201 is inflated and the second airbag 202 is inflated, they contact different positions of the patient's skin, so that the first airbag 201 and the second airbag 202 contact different positions of the patient's skin alternately, so as to avoid the flange 101 pressing on the skin of a single position of the patient for a long time, causing damage to the compressed skin.

[0040] See also Figure 2 , Figure 7 In one embodiment of the present application, the wall of the airbag includes a folded wall 203. The airbag can be in a contracted state and abut against the flange 101 under the action of the folded wall 203. When the airbag is inflated, the folded wall 203 is stretched, so that the airbag expands and contacts the skin. When the airbag is deflated, the wall of the airbag contracts toward the flange 101 under the action of the folded wall 203, so that the airbag no longer abuts against the skin, thereby preventing the airbag from causing pressure on the skin.

[0041] See also Figure 2 , Figure 7 Furthermore, the capsule wall of the airbag also includes a silicon capsule wall 204, which is connected to the flange 101 through a folded capsule wall 203. When the airbag is inflated, the silicon capsule wall 204 can abut against the skin. The silicon capsule wall 204 is made of medical silicone, which has less stimulation to human tissue, is non-toxic, and is not prone to allergic reactions, thereby further reducing irritation to the patient's skin.

[0042] See also Figure 1 In one embodiment of the present application, two airbags are arranged along the circumference of the curved tube 401, and one of the airbags is arranged on the inner side of the extension direction of the other airbag, so that the two airbags alternately expand and contract, achieving two alternating contacts with the patient's skin at different positions, thereby reducing the possibility of pressure sores.

[0043] There are many ways to implement the inflation and deflation of the two airbags in the present application. For example, in one embodiment of the present application, the pipeline structure includes a main air path 303, and the main air path 303 can be plugged into and matched with the nipple of the syringe. Those skilled in the art of the present application can understand that the main air path 303 can be plugged into and matched with the nipple of the syringe by making the inner diameter of the main air path 303 equal to the outer diameter of the nipple of the syringe, or by making the outer diameter of the main air path 303 equal to the inner diameter of the nipple of the syringe. Of course, there are other ways, which will not be repeated here; the main air path 303 can be inflated or the air in the main air path 303 can be extracted by a syringe, see Figure 3 The main air circuit 303 is connected to the first air circuit 301 and the second air circuit 302 through the three-way cock 304. When the first air bag 201 needs to be inflated, the three-way cock 304 is used to connect the main air circuit 303 and the first air circuit 301, and the main air circuit 303 is plugged and matched with the syringe nipple, and the syringe is used to inflate the first air bag 201 through the main air circuit 303 and the first air circuit 301, so that the first air bag 201 is inflated and in contact with the patient's skin, and then the valve core of the three-way cock 304 is rotated to disconnect the main air circuit 303 from the first air circuit 301, and the first air bag 201 remains inflated; when the contact position of the air bag with the skin needs to be changed, the valve core of the three-way cock 304 is rotated to connect the main air circuit 303 and the first air circuit 301, and the first air bag 20 The air in 1 can be discharged to the outside, and the valve core of the three-way stopcock 304 is rotated to connect the second air path 302 with the main air path 303, and a syringe is used to connect the main air path 303 and the second air path 302 with the second airbag 202, so as to use a syringe to inflate the second airbag 202, so that the second airbag 202 expands, and the flange 101 only contacts the skin through the second airbag 202. The present application reduces the possibility of pressure sores by alternately contacting the patient's skin through the first airbag 201 and the second airbag 202, and the syringe is provided with a scale, and the amount of air to be filled can be selected by observing the scale of the syringe, so that the airbag can have a suitable expansion degree, so that the airbag maintains a certain degree of softness, is closer to the skin, and improves the comfort of the wearer.

[0044] Technicians in the technical field to which the present application belongs can understand that the number of airbags in the present application is not limited to two airbags, but can also be other numbers of airbags, which can ensure the stability of the flange 101 placed on the lips when contacting the skin at different positions.

[0045] See also Figure 8In one embodiment of the present application, the oropharyngeal airway further includes two airbags connected to the flange 101, and the four airbags are arranged in an array around the curved tube 401. The two airbags arranged relative to the curved tube 401 are connected to each other so that the two airbags can have the same expansion state, so that the first airbag 201 and the second airbag 202 alternately press on different positions of the wearer's lips to avoid the airbags from pressing the skin at a single position for a long time. Since the four airbags are arranged in an array around the curved tube 401, the distance between the skin positions pressed by the first airbag 201 and the second airbag 202 is relatively large, thereby ensuring smooth blood flow in the skin.

[0046] See also Figure 8 The two first airbags 201 are arranged opposite to each other and are connected to each other, and the two second airbags 202 are arranged opposite to each other and are connected to each other, so that the first air path 301 can be connected to only one first airbag 201 to achieve the expansion and contraction of the two first airbags 201. Similarly, the second air path 302 is connected to one of the second airbags 202 to achieve the expansion and contraction of the two second airbags 202, thereby simplifying the pipeline structure, reducing the structural weight at the flange 101, improving the comfort of the wearer when wearing the present application, reducing the pressure of the flange 101 on the skin, and reducing the possibility of pressure sores.

[0047] See also Figure 1 In one embodiment of the present application, the curved tube 401 includes a tooth pad section 402 and a curved section 403. One end of the tooth pad section 402 is connected to the flange 101, and the other end is connected to the curved section 403. The outer surface of the tooth pad section 402 can be provided with a medical silicone layer to ensure the comfort of the wearer's teeth when in contact with the tooth pad section 402.

[0048] It should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present application, such as combination, division or repetition of features, should be included in the scope of protection of the present application.

Claims

1. An oropharyngeal airway, characterized in that include: A curved tube, the curved tube being able to extend into the oral cavity; A flange, the flange is connected to the curved tube, the outer edge diameter of the flange is larger than the diameter of the curved tube, and the flange can abut against the lip through the air bag to limit the movement of the curved tube into the oral cavity; The flange is connected to the two airbags, and the two airbags are respectively connected to the outside through a pipeline structure so that the two airbags can have different expansion states.

2. An oropharyngeal airway according to claim 1, characterized in that: The pipeline structure includes a main air circuit and two branch air circuits connected to the main air circuit. The two branch air circuits are respectively connected to the two air bags. The main air circuit is connected to the two branch air circuits through an air circuit control unit. The main air circuit can be connected to one of the air bags to change the expansion state of the air bag.

3. An oropharyngeal airway according to claim 2, characterized in that: The air circuit control unit includes a three-way stopcock, and the main air circuit can be connected to one of the branch air circuits through the three-way stopcock, or the connection between one of the airbags in the expanded state and the outside world can be disconnected through the three-way stopcock.

4. An oropharyngeal airway according to claim 1, characterized in that: The pipeline structure comprises a main air circuit, and the main air circuit is plugged and matched with the nipple of the syringe so as to inflate or extract air from the main air circuit through the syringe.

5. An oropharyngeal airway according to claim 1, characterized in that: The two airbags are arranged along the circumference of the bending tube, wherein one of the airbags is arranged on the inner side of the other airbag in the extending direction.

6. An oropharyngeal airway according to claim 1, characterized in that: The oropharyngeal airway further comprises two air bags connected to the flange, and four of the air bags are arranged around the curved tube array.

7. An oropharyngeal airway according to claim 6, characterized in that: The two airbags that are arranged opposite to each other with respect to the bending tube are communicated with each other so that the two airbags can have the same expansion state.

8. An oropharyngeal airway according to claim 1, characterized in that: The bag wall of the airbag includes a folded bag wall, and the airbag can be in a contracted state under the action of the folded bag wall and abut against the flange.

9. An oropharyngeal airway according to claim 8, characterized in that: The capsule wall of the airbag further comprises a silicon capsule wall, and the silicon capsule wall is connected to the flange through the folded capsule wall. When the airbag is expanded, the silicon capsule wall can abut against the skin.

10. An oropharyngeal airway according to claim 1, characterized in that: The bending tube comprises a tooth pad section and a bending section, one end of the tooth pad section is connected to the flange, and the other end is connected to the bending section.

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