Oropharyngeal airway

Abstract

The utility model discloses an oropharynx airway, and belongs to the field of medical equipment. The oropharynx airway comprises a fixing panel, an oral cavity pipeline and a trachea pipeline, the fixing panel is provided with a first through hole, ports in the two ends of the oral cavity pipeline are communicated with the first through hole and a port in one end of the trachea pipeline respectively, and the trachea pipeline is a flexible pipe. The tracheal tube can reduce the risk that the tracheal tube damages the oral mucosa of a patient.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly relates to an oropharyngeal airway. Background Art

[0002] In medical scenarios such as clinical first aid, an oropharyngeal airway is needed to perform operations such as suctioning on patients.

[0003] In related technologies, an oropharyngeal airway usually includes a first part and a second part. One end port of the first part can extend into the trachea, and the second part is located in the oral cavity.

[0004] However, the oropharyngeal airway has a risk of damaging the oral mucosa of patients. Content of the Utility Model

[0005] An embodiment of the utility model provides an oropharyngeal airway. The technical solution is as follows:

[0006] The oropharyngeal airway includes a fixed panel, an oral cavity pipe and a trachea pipe. The fixed panel has a first through hole. The ports at both ends of the oral cavity pipe are respectively communicated with the first through hole and the port at one end of the trachea pipe. The trachea pipe is a flexible pipe.

[0007] Optionally, the oropharyngeal airway further includes an annular airbag. The airbag is located inside the trachea pipe. The airbag has a first side wall and a second side wall. The first side wall surrounds the second side wall. The gas inside the airbag is located between the first side wall and the second side wall.

[0008] Optionally, the oropharyngeal airway further includes an air delivery pipe. The air delivery pipe has a first end and a second end. The airbag has an air delivery hole. The port at the first end of the air delivery pipe is communicated with the air delivery hole. The outer wall of the second end of the air delivery pipe is connected to the fixed panel.

[0009] Optionally, the oropharyngeal airway further includes an air pump. The air pump includes an air outlet hole. The air pump is connected to the fixed panel, and the air outlet hole of the air pump is communicated with the port at the second end of the air delivery pipe.

[0010] Optionally, the side wall of the trachea pipe has a second through hole. The outer wall of the air delivery pipe is connected to the outer wall of the oral cavity pipe, and the port at the first end of the air delivery pipe is communicated with the air delivery hole through the second through hole.

[0011] Optionally, the oropharyngeal airway further includes a sealing ring. The sealing ring is annular, and the sealing ring has an outer wall and an inner wall. The outer wall of the sealing ring surrounds the inner wall of the sealing ring. The outer wall of the sealing ring is connected to the side wall of the second through hole, and the inner wall of the sealing ring is connected to the outer wall of the air delivery pipe.

[0012] Optionally, the first side wall is fixedly connected to the inner wall of the tracheal duct.

[0013] Optionally, the oropharyngeal airway further includes a flexible protective sleeve that surrounds the outer wall of the oral duct.

[0014] Optionally, the fixed panel includes opposite first and second sides, and the oropharyngeal airway further includes a first fixing strap and a second fixing strap. One end of the first fixing strap is connected to the first side, and one end of the second fixing strap is connected to the second side.

[0015] Optionally, the oropharyngeal airway further includes a first Velcro and a second Velcro. One of the first Velcro and the second Velcro has a loop surface, and the other has a hook surface; the first Velcro is located at one end of the first fixing strap away from the fixed panel, and the second Velcro is located at one end of the second fixing strap away from the fixed panel.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include: by arranging an interconnected oral duct and tracheal duct in the oropharyngeal airway, and setting the tracheal duct as a flexible tube, the risk of damage to the patient's oral mucosa caused by the tracheal duct is reduced. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of an oropharyngeal airway provided by an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of another oropharyngeal airway provided by an embodiment of the present invention;

[0020] Figure 3 is a schematic structural diagram of another oropharyngeal airway provided by an embodiment of the present invention;

[0021] Figure 4 is a schematic structural diagram of an airbag provided by an embodiment of the present invention;

[0022] Figure 5 is a schematic structural diagram of a tracheal channel and an airbag provided by an embodiment of the present invention;

[0023] Figure 6It is a schematic cross-sectional structure diagram of the tracheal tube in different states provided by an embodiment of the present utility model;

[0024] Figure 7 It is a schematic cross-sectional structure diagram of a tracheal tube and an airbag provided by an embodiment of the present utility model;

[0025] Figure 8 It is a schematic structure diagram of a sealing ring provided by an embodiment of the present utility model;

[0026] Figure 9 It is a schematic structure diagram of another oropharyngeal airway provided by an embodiment of the present utility model. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] In the related art, an oropharyngeal airway generally includes an oral cavity tube and a tracheal tube. The port at one end of the oral cavity tube is communicated with the port at one end of the tracheal tube, so as to facilitate medical staff to perform operations such as sputum suction on patients using the oropharyngeal airway. However, the tracheal tube is relatively hard. During the operation process, for example, when inserting the tracheal tube into the patient's oropharynx or when removing the tracheal tube from the patient's oropharynx, the tracheal tube may cause damage to the patient's oral mucosa, resulting in oral bleeding of the patient.

[0029] Therefore, an embodiment of the present utility model provides an oropharyngeal airway to reduce the risk of damage to the patient's oral mucosa caused by the tracheal tube 3.

[0030] Figure 1 It is a schematic structure diagram of an oropharyngeal airway provided by an embodiment of the present utility model. As Figure 1 shown, the oropharyngeal airway includes a fixed panel 1, an oral cavity tube 2 and a tracheal tube 3. The fixed panel 1 has a first through hole 10. The ports at both ends of the oral cavity tube 2 are respectively communicated with the first through hole 10 and the port at one end of the tracheal tube 3. The tracheal tube 3 is a flexible tube. By providing an interconnected oral cavity tube and tracheal tube in the oropharyngeal airway and setting the tracheal tube 3 as a flexible tube, during the operation process, for example, when inserting the tracheal tube 3 into the patient's oropharynx or when removing the tracheal tube 3 from the patient's oropharynx, the risk of damage to the patient's oral mucosa caused by the tracheal tube 3 can be reduced.

[0031] Exemplarily, the oral cavity tube 2 is a rigid tube. Setting the oral cavity tube 2 as a rigid tube can ensure that during the operation process, the inner diameter of the oral cavity tube 2 will not be too small due to the patient closing their mouth, which may affect the operation of medical staff.

[0032] Exemplarily, the inner diameter of the oral cavity duct 2 is less than or equal to the inner diameter of the first through hole 10, and the inner diameter of the tracheal duct 3 is less than or equal to the inner diameter of the oral cavity duct 2.

[0033] It should be noted that when the opening shape of the first through hole 10 is an oblate circle as Figure 1 shown, the inner diameter of the first through hole 10 includes the maximum inner diameter and the minimum inner diameter; similarly, when the port shape of the oral cavity duct 2 is an oblate circle as Figure 1 shown, the inner diameter of the oral cavity duct 2 includes the maximum inner diameter and the minimum inner diameter. Here, the inner diameter of the oral cavity duct 2 being less than or equal to the inner diameter of the first through hole 10 means that the maximum inner diameter of the oral cavity duct 2 is less than or equal to the maximum inner diameter of the first through hole 10, and the minimum inner diameter of the oral cavity duct 2 is less than or equal to the minimum inner diameter of the first through hole 10. Similarly, if the port shape of the tracheal duct 3 is an oblate circle as Figure 1 shown, the inner diameter of the tracheal duct 3 being less than or equal to the inner diameter of the oral cavity duct 2 means that the maximum inner diameter of the tracheal duct 3 is less than or equal to the maximum inner diameter of the oral cavity duct 2, and the minimum inner diameter of the tracheal duct 3 is less than or equal to the minimum inner diameter of the oral cavity duct 2.

[0034] In summary, the oropharyngeal airway provided by the embodiment of the present invention includes a fixed panel, an oral cavity duct, and a tracheal duct, and the tracheal duct is a flexible tube. By arranging the interconnected oral cavity duct and tracheal duct in the oropharyngeal airway and setting the tracheal duct as a flexible tube, the risk of the tracheal duct damaging the oral mucosa of the patient is reduced.

[0035] Exemplarily, as Figure 1 shown, in the length direction of the tracheal duct 3, the tracheal duct 3 has a curvature to adapt to the shape of the patient's oropharynx. Here, the tracheal duct 3 having a curvature means that the end of the tracheal duct 3 far from the fixed panel 1 is bent in one direction parallel to the fixed panel with respect to the end of the tracheal duct 3 close to the fixed panel 1. For example Figure 1 shown, the end of the tracheal duct 3 far from the fixed panel 1 is bent towards the bottom of the fixed panel with respect to the end of the tracheal duct 3 close to the fixed panel 1.

[0036] Exemplarily, the oral cavity duct 2 and the tracheal duct 3 are fixedly connected by, for example, bonding, and the fixed panel 1 and the oral cavity duct 2 are fixedly connected by, for example, bonding.

[0037] Figure 2 is a schematic structural diagram of another oropharyngeal airway provided by the embodiment of the present invention, Figure 3 is a schematic structural diagram of another oropharyngeal airway provided by the embodiment of the present invention, Figure 4 is a schematic structural diagram of an airbag provided by the embodiment of the present invention, Figure 5The figure is a schematic structural diagram of a tracheal channel and an airbag provided by an embodiment of the present utility model. In combination with Figure 2 , Figure 3 , Figure 4 and Figure 5 , the oropharyngeal airway further includes an annular airbag 4. The airbag 4 is located in the tracheal tube 3. The airbag 4 has a first side wall 41 and a second side wall 42. The first side wall 41 surrounds the second side wall 42. The gas in the airbag 4 is located between the first side wall 41 and the second side wall 42. By arranging the airbag 4 in the tracheal tube 3 and the tracheal tube 3 being a flexible tube, the radial dimension of the tracheal tube 3 can be changed by changing the volume of the gas in the airbag 4.

[0038] Before the tracheal tube 3 of the oropharyngeal airway is inserted into the patient's oropharynx, the gas in the airbag 4 can be discharged so that the inner diameter of the tracheal tube 3 is as small as possible, thereby reducing the risk of damage to the patient's oral mucosa caused by the tracheal tube 3. After the tracheal tube 3 of the oropharyngeal airway is inserted into the patient's oropharynx, gas can be filled into the airbag 4, so that the airbag 4 can expand the tracheal tube 3, facilitating the operation of medical staff. Among them, for patients with a larger oropharyngeal space, more gas can be filled into the airbag 4, while for patients with a smaller oropharyngeal space, less gas can be filled into the airbag 4. By changing the volume of the gas in the airbag 4, it can adapt to different patients.

[0039] Figure 6 The figure is a schematic cross-sectional structural diagram of the tracheal tube and the airbag in different states provided by an embodiment of the present utility model. Among them, Figure 6 part (a) of the figure shows the tracheal tube 3 in a natural state. The above-mentioned expansion of the tracheal tube 3 by the airbag 4 includes the following two situations. The first is that the airbag 4 expands the tracheal tube 3 from the state where the tracheal tube 3 is squeezed to an irregular cross-sectional shape to the cross-sectional shape of the tracheal tube 3 shown in part (a) of Figure 6 ; the second is that since the tracheal tube 3 made of a flexible material also has a certain elasticity, the airbag 4 expands the tracheal tube 3 from the cross-sectional shape shown in part (a) of Figure 6 to the cross-sectional shape of the tracheal tube 3 shown in part (b) of Figure 6 .

[0040] It should be noted that, in order to clearly show each structure in the oropharyngeal airway, Figure 2 shows other structures in the oropharyngeal airway except the airbag 4, Figure 3 shows each structure of the oropharyngeal airway including the airbag 4, Figure 4 shows the structure of the airbag 4 alone. Among them, Figure 4 the filling pattern in the figure is only for indicating that the gas in the airbag is located between the first side wall 41 and the second side wall 42.Figure 6 The filling pattern in

[0041] is only used to distinguish the tracheal tube 3 and the airbag 4. Exemplarily, the tracheal tube 3 is made of silicone or other flexible materials so that the airbag can expand the tracheal tube 3 until the cross-section of the tracheal tube 3 is in the shape shown in part (b) of Figure 6 .

[0042] Exemplarily, the airbag is made of elastic material or non-elastic material, and the embodiments of the present invention do not limit this.

[0043] Exemplarily, the first side wall 41 is fixedly connected to the inner wall of the tracheal tube 3. If the first side wall 41 is not fixedly connected to the inner wall of the tracheal tube 3, when medical staff operate on a patient with a relatively small oropharyngeal space using an oropharyngeal airway, since only a small amount of gas is filled into the airbag 4, the airbag 4 may be relatively wrinkled, thus hindering the flow of air or liquid in the tracheal tube 3, or even blocking the tracheal tube 3, affecting the operation of medical staff. By fixedly connecting the first side wall 41 to the inner wall of the tracheal tube 3 in the embodiments of the present invention, when medical staff operate on a patient with a relatively small oropharyngeal space using an oropharyngeal airway, even if only a small amount of gas is filled into the airbag 4, the airbag 4 will not be overly wrinkled due to the fixed connection between the first side wall 41 and the inner wall of the tracheal tube 3, thus facilitating the flow of air or liquid in the tracheal tube 3.

[0044] Exemplarily, the length of the airbag 4 is less than or equal to the length of the tracheal tube 3.

[0045] Figure 7 is a schematic cross-sectional structure diagram of a tracheal tube and an airbag provided by an embodiment of the present invention, and Figure 7 is Figure 3 a schematic structure diagram of a cross-section parallel to the length direction of the tracheal tube 3. In a possible embodiment, combining Figure 3 and Figure 7 , on the cross-section parallel to the length direction L of the tracheal tube 3, that is, on the cross-section parallel to the length direction of the airbag 4, the airbag 4 filled with gas inside is longer, and both the airbag 4 filled with gas inside and the tracheal tube 3 have arcs to adapt to the shape of the patient's oropharynx. It should be noted that. Figure 7 The filling pattern in

[0046] is only used to distinguish the tracheal tube 3 and the airbag 4. In other possible embodiments, in the length direction of the tracheal tube 3, that is, in the length direction of the airbag 4, the airbag 4 filled with gas inside is shorter. In this embodiment, the airbag 4 may not have an arc and be in a straight segment shape, or only have a small arc. For example, the airbag 4 filled with gas inside may be in a hollow cylindrical shape.

[0047] In the embodiments of the present utility model, as Figure 2 , Figure 3 and Figure 4 shown, the oropharyngeal airway further includes an air delivery pipe 5. The air delivery pipe 5 has a first end 51 and a second end 52. The airbag 4 has an air delivery hole 43. The port of the first end 51 of the air delivery pipe 5 communicates with the air delivery hole 43. The outer wall of the second end 52 of the air delivery pipe 5 is connected to the fixed panel 1. By providing the air delivery pipe 5, gas can be input into the airbag 4 sequentially through the air delivery pipe 5 and the air delivery hole 43, or the gas in the airbag 4 can be discharged to the outside sequentially through the air delivery hole 43 and the air delivery pipe 5. Connecting the outer wall of the second end 52 of the air delivery pipe 5 to the fixed panel 1 can prevent the second end 52 of the air delivery pipe 5 from falling into the patient's oral cavity.

[0048] In a possible embodiment, a simple blowing device such as an ear syringe can be used to blow gas into the port of the second end 412 of the air delivery pipe 5.

[0049] In another possible embodiment, as Figure 2 , Figure 3 and Figure 4 shown, the oropharyngeal airway further includes an air pump 6. The air pump 6 includes an air outlet hole (not shown in the figure). The air pump 6 is connected to the fixed panel 1, and the air outlet hole of the air pump 6 communicates with the port of the second end 52 of the air delivery pipe 5. By providing the air pump 6, it is convenient to more accurately control the air input volume or air discharge volume, thereby more accurately controlling the inner diameter size of the tracheal tube 3 to adapt to different patients; and the air pump 6 can be controlled to slowly input or discharge the gas in the airbag 4, so that the radial dimension change of the tracheal tube 3 is relatively slow, so as to improve the comfort of the patient as much as possible. Optionally, the air pump 6 is a micro air pump to minimize the weight of the air pump and avoid causing too much pressure on the patient's lips and teeth.

[0050] Exemplarily, as Figure 2 or Figure 3 shown, the oropharyngeal airway further includes a fixing seat 7. The fixing seat 7 is connected to the fixed panel 1. The air pump 6 can be placed inside the fixing seat 7, thereby playing a role in fixing the air pump 6. Exemplarily, as Figure 2 or Figure 3 shown, the fixing seat 7 is located on the side wall of the fixed panel 1, rather than on the side of the fixed panel 1 close to the oral cavity tube 2, to avoid discomfort of the patient due to contact between the lips and the fixing seat 7; and, the fixing seat 7 is located on the side wall of the fixed panel 1, rather than on the side of the fixed panel 1 away from the oral cavity tube 2, to avoid the fixing seat 7 interfering with the operation of medical staff.

[0051] In a possible embodiment, in combination with Figure 2 , Figure 3 and Figure 4, the side wall of the tracheal tube 3 has a second through hole 30. The outer wall of the air delivery tube 5 is connected to the outer wall of the oral cavity tube 2, and the port of the first end 51 of the air delivery tube 5 communicates with the air inlet hole 43 through the second through hole 30. Since the space in the oral cavity is larger than the pharyngeal space, the air delivery tube 3 can be arranged outside the oral cavity tube 2. Moreover, the air delivery tube 3 is arranged outside rather than inside the oral cavity tube 2 to maximize the operating space of medical staff within the oropharyngeal airway. Also, when medical staff perform operations such as suctioning on the patient, arranging the air delivery tube outside the oral cavity tube can maximize the smoothness of the inner wall of the oral cavity tube 2, facilitating the outflow of sputum.

[0052] Exemplarily, the outer wall of the air delivery tube 5 is connected to the outer wall of the oral cavity tube 2 by means such as bonding.

[0053] Figure 8 is a schematic structural diagram of a sealing ring provided by an embodiment of the present invention. Combining Figure 2 , Figure 3 and Figure 8 , the oropharyngeal airway further includes a sealing ring 8. The sealing ring 8 is annular, and the sealing ring 8 has an outer wall 81 and an inner wall 82. The outer wall 81 of the sealing ring 8 surrounds the inner wall 82 of the sealing ring 8. The outer wall 81 of the sealing ring 8 is connected to the side wall of the second through hole 30, and the inner wall 82 of the sealing ring 8 is connected to the outer wall of the air delivery tube 5. By providing the sealing ring 8 at the second through hole 30 of the tracheal tube 3, it is possible to prevent sputum sucked out from the patient's body from flowing back into the patient's trachea from the inside of the tracheal tube 3, passing through the second through hole 30, and along the outer wall of the tracheal tube 3 when medical staff use the oropharyngeal airway to perform operations such as suctioning on the patient.

[0054] In a possible embodiment, the cross-sectional shape of the second through hole 30 of the tracheal tube 3 is circular, and the cross-sectional shape of the outer wall 82 of the sealing ring 8 is also circular, so that the shape of the sealing ring can better match the shape of the second through hole 30. Exemplarily, the cross-sectional shape of the outer wall of the air delivery tube 5 is also circular.

[0055] In other possible embodiments, the cross-sectional shape of the second through hole 30 of the tracheal tube 3 is oval, and the cross-sectional shape of the outer wall 82 of the sealing ring 8 is also oval, so that the shape of the sealing ring can better match the shape of the second through hole 30. In other possible embodiments, the cross-sectional shape of the second through hole 30 of the tracheal tube 3 and the cross-sectional shape of the outer wall 82 of the sealing ring 8 can also be other shapes, and the embodiments of the present invention do not limit this.

[0056] In other possible embodiments, the air delivery pipe 3 can also be arranged inside the oral cavity pipe 2. In this embodiment, since the air delivery pipe 3 does not need to pass through the tracheal pipe 3 to connect with the airbag, there is no need to provide a second through hole in the tracheal pipe 3, nor is it necessary to provide a sealing ring located in the second through hole. Exemplarily, the outer wall of the air delivery pipe 5 is connected to the inner wall of the oral cavity pipe 2, and the port of the first end 51 of the air delivery pipe 5 communicates with the air inlet hole 43 through the second through hole 30. If the air delivery pipe 5 is not fixedly connected to the oral cavity pipe 2, during the use of the oropharyngeal airway, the air delivery pipe 5 may move relative to the oral cavity pipe 2, thus affecting the operation of medical staff. In the embodiment of the present utility model, the outer wall of the air delivery pipe 5 is connected to the inside of the oral cavity pipe 2 to play a role in fixing the air delivery pipe 5, thereby facilitating the operation of medical staff. Exemplarily, the outer wall of the air delivery pipe 5 is connected to the inner wall of the oral cavity pipe 2 by means of, for example, adhesion.

[0057] Exemplarily, referring again to Figure 1 , the oropharyngeal airway further includes a flexible protective sleeve (not shown in the figure), and the flexible protective sleeve surrounds the outer wall of the oral cavity pipe 2. Since the oral cavity pipe 2 is relatively hard, without the flexible protective sleeve, the patient's teeth may directly contact the outer wall of the oral cavity pipe 2, resulting in discomfort of the patient's teeth. In emergency and other scenarios, the patient may also bite the oral cavity pipe 2 too tightly, thereby causing damage to the patient's teeth. In the embodiment of the present utility model, a flexible protective sleeve is provided on the outer wall of the oral cavity pipe 2 to avoid damaging the patient's teeth. Optionally, the inner wall of the flexible protective sleeve can be connected to the outer wall of the oral cavity pipe 2 by means of, for example, adhesion. Optionally, since the flexible protective sleeve has elasticity, the radial dimension of the outer wall of the flexible protective sleeve in the natural state can be set to be smaller than the radial dimension of the outer wall of the oral cavity pipe 2, so that when the flexible protective sleeve surrounds the outer wall of the oral cavity pipe 2, the flexible protective sleeve exerts a radially inward force on the oral cavity pipe 2, and the problem of the flexible protective sleeve falling off from the outer wall of the oral cavity pipe 2 will not occur. In this embodiment, it is also possible not to connect the inner wall of the flexible protective sleeve to the outer wall of the oral cavity pipe 2 by means of, for example, adhesion.

[0058] Optionally, all areas of the outer wall of the oral cavity pipe 2 are covered by the flexible protective sleeve. Optionally, the flexible protective sleeve can also be provided only in a part of the area of the outer wall of the oral cavity pipe 2. For example, the flexible protective sleeve is provided on the outer wall of this part of the oral cavity pipe 2 close to the fixed panel 1 to facilitate the patient's biting; while the flexible protective sleeve is not provided in another part of the area of the outer wall of the oral cavity pipe 2. For example, the flexible protective sleeve is not provided on the outer wall of this part of the oral cavity pipe 2 close to the tracheal pipe 3, because usually the patient's teeth will not bite the outer wall of this part of the oral cavity pipe 2 close to the tracheal pipe 3.

[0059] Optionally, the flexible protective sleeve is made of a flexible material such as silica gel.

[0060] Exemplarily, the fixed panel 1 has a side close to the oral cavity duct 2 and a side far from the oral cavity duct 2. Among them, the side of the fixed panel 1 close to the oral cavity duct 2 is made of a flexible material, so as to protect the patient's lips and reduce the discomfort felt by the patient due to the collision between the lips and the fixed panel 1.

[0061] Refer again to Figure 1 and Figure 2 , the fixed panel 1 includes opposite first side 11 and second side 12, and the oropharyngeal airway further includes a first fixing band 91 and a second fixing band 92. One end of the first fixing band 91 is connected to the first side 11, and one end of the second fixing band 92 is connected to the second side 12. In the embodiment of the present utility model, by providing the first fixing band 91 and the second fixing band 92, when medical staff use the oropharyngeal airway to operate on the patient for sputum suction and other operations, the first fixing band 91 and the second fixing band 92 can be used to fix the oral cavity duct 2 and the tracheal duct 3 on the patient's head.

[0062] The shapes of the first fixing band 91 and the second fixing band 92 will be exemplarily described below.

[0063] In a possible embodiment, the first fixing band 91 includes a first sub-band 911 and a second sub-band 912, and the second fixing band 92 includes a first sub-band 921 and a second sub-band 922. By respectively providing multiple sub-bands in the first fixing band 91 and the second fixing band 92, it is convenient to further fix the oral cavity duct 2 and the tracheal duct 3 reliably.

[0064] When the first fixing band 91 includes a first sub-band 911 and a second sub-band 912, and the second fixing band 92 includes a first sub-band 921 and a second sub-band 922, it may be that the first sub-band 911 of the first fixing band 91 is connected to the first sub-band 921 of the second fixing band 92, and the second sub-band 912 of the first fixing band 91 is connected to the second sub-band 922 of the second fixing band 92 to play a role in fixing the oropharyngeal airway. It may also be that the first sub-band 911 of the first fixing band 91 is connected to the second sub-band 922 of the second fixing band 92, and the second sub-band 912 of the first fixing band 91 is connected to the first sub-band 921 of the second fixing band 92 to play a role in fixing the oropharyngeal airway. Since in the actual use process, other medical devices may also be provided on the patient's head, by providing multiple sub-bands in the first fixing band 91 and the second fixing band 92, it is convenient for the first fixing band 91 and the second fixing band 92 to bypass other medical devices on the patient's head while playing a role in fixing the oropharyngeal airway. And, according to the different sizes of the patient's head, the connection method of connecting the first sub-band 911 of the first fixing band 91 to the first sub-band 921 of the second fixing band 92 and connecting the second sub-band 912 of the first fixing band 91 to the second sub-band 922 of the second fixing band 92 can be flexibly selected, or the connection method of connecting the first sub-band 911 of the first fixing band 91 to the second sub-band 922 of the second fixing band 92 and connecting the second sub-band 912 of the first fixing band 91 to the first sub-band 921 of the second fixing band 92 can be selected.

[0065] In other possible embodiments, the first fixing band 91 only includes one sub-band, and the second fixing band 92 only includes one sub-band, which can also play a role in fixing the oral cavity duct 2 and the tracheal duct 3.

[0066] In other possible embodiments, the first fixing band 91 may not include the first sub-band and the second sub-band. Instead, the first fixing band 91 includes a main fixing band, a first sub-fixing band, and a second sub-fixing band. One end of the main fixing band of the first fixing band 91 is connected to the fixing panel 1, and the other end of the main fixing band of the first fixing band 91 is connected to the first sub-fixing band and the second sub-fixing band. Similarly, the second fixing band 92 may not include the first sub-band and the second sub-band. Instead, the second fixing band 92 includes a main fixing band, a first sub-fixing band, and a second sub-fixing band. One end of the main fixing band of the second fixing band 92 is connected to the fixing panel 1, and the other end of the main fixing band of the second fixing band 92 is connected to the first sub-fixing band and the second sub-fixing band. By connecting the first sub-fixing band and the second sub-fixing band of the first fixing band 91 to the first sub-fixing band and the second sub-fixing band of the second fixing band 92, the oropharyngeal airway can be fixed. In this embodiment, since the main fixing band, the first sub-fixing band, and the second sub-fixing band are respectively provided in both the first fixing band 91 and the second fixing band 92, and the main fixing band is wider, the pressure of the first fixing band and the second fixing band on the patient's face can be reduced, and the comfort of the patient can be improved. In this embodiment, it may be that the first sub-fixing band of the first fixing band 91 is connected to the first sub-fixing band of the second fixing band 91, and the second sub-fixing band of the first fixing band 91 is connected to the second sub-fixing band of the second fixing band 91; or, it may also be that the first sub-fixing band of the first fixing band 91 is connected to the second sub-fixing band of the second fixing band 91, and the second sub-fixing band of the first fixing band 91 is connected to the first sub-fixing band of the second fixing band 91, so as to bypass other medical devices on the patient's head while fixing the oropharyngeal airway, and the connection method of the first fixing band 91 and the second fixing band 92 can be selected according to the different head sizes of the patients.

[0067] Optionally, both the first fixing band 91 and the second fixing band 92 are elastic bands to be applicable to different patients, for example, to be applicable to patients with different head sizes. Optionally, the manufacturing material of the first fixing band 91 includes an elastic material, and the manufacturing material of the second fixing band 92 includes an elastic material. For example, the first fixing band 91 has a first part close to the fixing panel 1 and a second part far from the fixing panel 1. The manufacturing material of the first part of the first fixing band 91 is a non-elastic material, and the manufacturing material of the second part of the first fixing band 91 is an elastic material. Similarly, the second fixing band 92 has a first part close to the fixing panel 1 and a second part far from the fixing panel 1. The manufacturing material of the first part of the second fixing band 92 is a non-elastic material, and the manufacturing material of the second part of the second fixing band 92 is an elastic material.

[0068] The connection method of the first fixing band 91 and the second fixing band 92 will be exemplarily described below.

[0069] In a possible embodiment, both the first fixing band 91 and the second fixing band 92 are thin ropes with a soft texture. The oropharyngeal airway can be fixed by tying the first fixing band 91 and the second fixing band 92 at the back of the patient's head.

[0070] Figure 9 It is a schematic structural diagram of another oropharyngeal airway provided by an embodiment of the present invention. As Figure 9 shown, the oropharyngeal airway further includes a first Velcro 101 and a second Velcro 102. One of the first Velcro 101 and the second Velcro 102 has a round plush surface, and the other has a prickly surface. The first Velcro 101 is located at one end of the first fixing band 91 away from the fixing panel 1, and the second Velcro 102 is located at one end of the second fixing band 92 away from the fixing panel 1. By providing the first Velcro 101 and the second Velcro 102, the first fixing band 91 and the second fixing band 92 can be pasted and fixed or separated, facilitating the fixation of the oropharyngeal airway at the patient's oropharynx or the removal of the oropharyngeal airway from the patient's oropharynx.

[0071] In a possible embodiment, when the ends of the first fixing band 91 away from the fixing panel 1 and the second fixing band 92 away from the fixing panel 1 are looped around to the back of the patient's head, as Figure 9 shown, both the first fixing band 91 and the second fixing band 92 have a side close to the patient's head and a side away from the patient's head. The first Velcro 101 is located on the side of the first fixing band 91 away from the patient's head, and the second Velcro 102 is located on the side of the second fixing band 92 close to the patient's head. Thus, when the ends of the first fixing band 91 away from the fixing panel 1 and the second fixing band 92 away from the fixing panel 1 are looped around to the back of the patient's head, the first Velcro 101 and the second Velcro 102 can be pasted, and the first fixing band 91 and the second fixing band 92 are relatively flat at the pasting position of the first Velcro 101 and the second Velcro. Optionally, the side of the first fixing band 91 close to the patient's head is a skin-friendly material layer, and the side of the second fixing band 92 close to the patient's head is a skin-friendly material layer to improve the patient's comfort.

[0072] In other possible embodiments, it may also be that when the ends of the first fixing band 91 away from the fixing panel 1 and the second fixing band 92 away from the fixing panel 1 are looped around to the back of the patient's head, the first Velcro 101 is located on the side of the first fixing band 91 close to the patient's head, and the second Velcro 102 is located on the side of the second fixing band 92 away from the patient's head. The embodiments of the present invention do not limit this.

[0073] In a possible embodiment, as Figure 9As shown, there is only one first Velcro 101 on the first sub-belt 911 and the second sub-belt 912 of the first fixing belt 91 respectively, and there is only one second Velcro 102 on the first sub-belt 921 and the second sub-belt 922 of the second fixing belt 92 respectively. In other possible embodiments, there may also be multiple first Velcros 101 on both the first sub-belt 911 and the second sub-belt 912 of the first fixing belt 91, and multiple second Velcros 102 on both the first sub-belt 921 and the second sub-belt 922 of the second fixing belt 92, so as to adapt to patients with different head sizes.

[0074] In other possible embodiments, the first fixing belt 91 and the second fixing belt 92 can also be fixed by means of snap connection between a snap and a slot. For example, one end of the first fixing belt 91 away from the fixing panel 1 has a snap, and one end of the second fixing belt 92 away from the fixing panel 2 has a slot. The snap can be snap-connected and fixed or separated from the slot, so that one end of the first fixing belt 91 away from the fixing panel 1 can be freely connected and fixed or separated from one end of the second fixing belt 92 away from the fixing panel 1, thereby enabling flexible fixation and removal of the oropharyngeal airway.

[0075] Exemplarily, as Figure 9 shown, one end of the first fixing belt 91 close to the fixing panel 1 also has a connecting seat 90, and one end of the second fixing belt 92 close to the fixing panel 1 also has a connecting seat 90, so as to facilitate the connection of the first fixing belt 91 and the second fixing belt 92 to the fixing panel 1 through the connecting seat 90 respectively. It should be noted that in the Figure 9 shown embodiment, since the connecting seat 90 at one end of the first fixing belt 91 close to the fixing panel 1 is blocked by the fixing panel 1, therefore Figure 9 only the connecting seat 90 at one end of the second fixing belt 92 close to the fixing panel 1 is schematically shown in

[0076] It should be noted that the terms used in the implementation part of the embodiments of the present utility model are only used to explain the embodiments of the present utility model, rather than being intended to limit the embodiments of the present utility model. Unless otherwise defined, the technical terms or scientific terms used in the implementation of the embodiments of the present utility model should have the ordinary meaning understood by those with ordinary skills in the field to which the embodiments of the present utility model belong. The "first", "second" and similar words used in the description and claims of the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The orientation terms mentioned in the embodiments of the present utility model, for example, "top", "bottom", "upper", "lower", "left" or "right", etc., are only with reference to the direction of the attached drawings. Therefore, the orientation terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, 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 thus cannot be construed as a limitation to the embodiments of the present utility model.

[0077] The above are only optional embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An oropharyngeal airway, characterized in that, The oropharyngeal airway includes a fixing panel, an oral cavity duct and a trachea duct. The fixing panel has a first through hole. The ports at both ends of the oral cavity duct are respectively communicated with the first through hole and the port at one end of the trachea duct. The trachea duct is a flexible tube.

2. The oropharyngeal airway according to claim 1, wherein The oropharyngeal airway further includes an annular airbag. The airbag is located inside the trachea duct. The airbag has a first side wall and a second side wall. The first side wall surrounds the second side wall. The gas inside the airbag is located between the first side wall and the second side wall.

3. The oropharyngeal airway according to claim 2, characterized in that, The oropharyngeal airway further includes an air delivery pipe. The air delivery pipe has a first end and a second end. The airbag has an air injection hole. The port at the first end of the air delivery pipe is communicated with the air injection hole. The outer wall of the second end of the air delivery pipe is connected to the fixing panel.

4. The oropharyngeal airway according to claim 3, wherein The oropharyngeal airway further includes an air pump. The air pump includes an air outlet hole. The air pump is connected to the fixing panel, and the air outlet hole of the air pump is communicated with the port at the second end of the air delivery pipe.

5. The oropharyngeal airway according to claim 4, wherein, The side wall of the trachea duct has a second through hole. The outer wall of the air delivery pipe is connected to the outer wall of the oral cavity duct, and the port at the first end of the air delivery pipe is communicated with the air injection hole through the second through hole.

6. The oropharyngeal airway according to claim 5, characterized in that, The oropharyngeal airway further includes a sealing ring. The sealing ring is annular and has an outer wall and an inner wall. The outer wall of the sealing ring surrounds the inner wall of the sealing ring. The outer wall of the sealing ring is connected to the side wall of the second through hole, and the inner wall of the sealing ring is connected to the outer wall of the air delivery pipe.

7. The oropharyngeal airway according to claim 2, wherein, The first side wall is fixedly connected to the inner wall of the trachea duct.

8. The oropharyngeal airway according to claim 1, characterized in that, The oropharyngeal airway further includes a flexible protective sleeve. The flexible protective sleeve surrounds the outer wall of the oral cavity duct.

9. The oropharyngeal airway according to claim 1, wherein The fixing panel includes an opposite first side and a second side. The oropharyngeal airway further includes a first fixing band and a second fixing band. One end of the first fixing band is connected to the first side, and one end of the second fixing band is connected to the second side.

10. The oropharyngeal airway according to claim 9, wherein, The oropharyngeal airway further includes a first magic tape and a second magic tape. One of the first magic tape and the second magic tape has a round hair surface, and the other has a prickly surface. The first magic tape is located at the end of the first fixing band away from the fixing panel, and the second magic tape is located at the end of the second fixing band away from the fixing panel.

Images