Personalized oropharyngeal airway device based on 3D printing

Abstract

The invention relates to the technical field of medical instruments, in particular to a personalized oropharyngeal airway device based on 3D printing. The personalized oropharyngeal airway device based on 3D printing comprises a 3D printed oropharyngeal airway body, a limiting part is arranged at one end of the oropharyngeal airway body, an airflow sensor is arranged on the inner wall of the oropharyngeal airway body, and a processor, a power source and a communicator are arranged on the limiting part. The processor is respectively connected with the power supply, the airflow sensor and the communicator, and the power supply is connected with the communicator. The device has the advantages that the structural design is simple and reasonable, the device is customized according to the oropharynx shape of a patient, wearing is more comfortable, meanwhile, when the OSA patient sleeps, the device can assist in opening the airway and prevent soft tissue in the oral cavity from blocking the airway, meanwhile, the smooth condition of the airway can be monitored in real time, related data can be recorded, the patient and medical staff can be helped to know the sleep breathing condition, and the sleep quality of the patient is improved. And adjustment and treatment can be carried out in time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a personalized oropharyngeal airway device based on 3D printing. Background Art

[0002] Patients with sleep apnea often suffer from snoring and sleep apnea due to the obstruction of the airway by oral soft tissues during sleep. Currently, a small number of anesthetic oropharyngeal airways are used clinically to open the airway of patients. However, the existing anesthetic oropharyngeal airways have the following defects:

[0003] 1) The length and radian are designed in a fixed format and cannot be adapted to different oral anatomical structures (such as the differences between obese / normal weight patients);

[0004] 2) The material is mostly made of hard plastic, which is easy to cause oral mucosal damage and poor comfort during long-term use; the ventilation effect depends on the assistance of a ventilator and cannot meet the home use needs of OSA patients.

[0005] Based on this, it is necessary to develop a personalized oropharyngeal airway device based on 3D printing to overcome the above technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a personalized oropharyngeal airway device based on 3D printing, which effectively overcomes the defects of the prior art.

[0007] The technical solution of the present invention to solve the above technical problems is as follows:

[0008] A personalized oropharyngeal airway device based on 3D printing includes a 3D-printed flexible pharyngeal airway main body. One end of the pharyngeal airway main body is provided with a limiting part. An air flow sensor is arranged on the inner wall of the pharyngeal airway main body. A processor, a power supply and a communicator are arranged on the limiting part. The processor is respectively connected to the power supply, the air flow sensor and the communicator, and the power supply is connected to the communicator.

[0009] On the basis of the above technical solution, the present invention can be further improved as follows.

[0010] Further, the pharyngeal airway main body is a silicone airway, and a support net woven by metal wires is embedded in its inner wall.

[0011] Further, the metal wire is a shape memory alloy wire.

[0012] Further, a plurality of air flow sensors are provided and are spaced apart and distributed in different directions on the inner wall of the pharyngeal airway main body.

[0013] Further, a gas filtering component is installed in one end port of the pharyngeal airway main body.

[0014] Furthermore, the above-mentioned limiting part is an arc-shaped sheet member.

[0015] Furthermore, the above-mentioned communicator is a Bluetooth communicator or a 4G / 5G communicator.

[0016] Furthermore, an oxygen inlet is provided on the above-mentioned limiting part, an oxygen supply port is provided on the inner wall of the main body of the pharyngeal airway, and the oxygen supply port is connected to the oxygen inlet through a channel.

[0017] Furthermore, the main body of the pharyngeal airway extends in a curved shape as a whole, and the cross-sectional shape thereof is oval.

[0018] Furthermore, elastic bandages are connected to both ends of the above-mentioned limiting part.

[0019] The beneficial effects of the present invention are as follows: The structure design is simple and reasonable. The device is customized according to the oral and pharyngeal shapes of patients, and the wearing is more comfortable. At the same time, it can assist in opening the airway when OSA patients are sleeping, avoiding the blockage of the airway by soft tissues in the oral cavity. At the same time, it can monitor the patency of the airway in real time, record relevant data, and help patients and medical staff understand the sleep breathing condition, so as to make timely adjustments and treatments. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the personalized pharyngeal airway device based on 3D printing of the present invention;

[0021] Figure 2 It is a cross-sectional view of the personalized pharyngeal airway device based on 3D printing of the present invention;

[0022] Figure 3 It is a top view of the structure of the personalized pharyngeal airway device based on 3D printing of the present invention;

[0023] Figure 4 It is a schematic structural diagram of another embodiment of the personalized pharyngeal airway device based on 3D printing of the present invention;

[0024] Figure 5 It is a top view of the structure of yet another embodiment of the personalized pharyngeal airway device based on 3D printing of the present invention.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Main body of the pharyngeal airway; 2. Airflow sensor; 11. Support mesh; 13. Oxygen inlet; 111. Limiting part; 112. Elastic bandage. Detailed Embodiments

[0027] The principles and features of the present invention are described below with reference to the drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0028] Embodiment

[0029] As Figure 1 , 2 , as shown in Figure 3, the personalized oropharyngeal airway device based on 3D printing in this embodiment includes a 3D printed flexible pharyngeal airway main body 1. One end of the pharyngeal airway main body 1 is provided with a limiting part 111. An air flow sensor 2 is arranged on the inner wall of the pharyngeal airway main body 1. A processor, a power supply and a communicator are arranged on the limiting part 111. The processor is respectively connected to the power supply, the air flow sensor 2 and the communicator, and the power supply is connected to the communicator.

[0030] In the personalized oropharyngeal airway device based on 3D printing in this embodiment, the pharyngeal airway main body 1 adopts 3D printing technology. Before manufacturing, the shape of the patient's oropharynx is scanned first, and then three-dimensional modeling is carried out (a three-dimensional model is established based on the patient's oral CT / MRI data). The pharyngeal airway main body 1 is customized and printed into shape (the formed pharyngeal airway main body 1 is completely matched with the curvature of the patient's hard palate and the height of the tongue body. The personalized adaptation can reduce the compression of the pharyngeal airway main body 1 on the internal soft tissues of the patient's oral cavity and ensure the establishment of a better ventilation channel). Then, the air flow sensor 2 is fixedly installed on the inner wall. Overall, during use, it can perfectly match the trend of the patient's oropharyngeal airway, achieve a good auxiliary effect, and effectively open the airway. When in use, the pharyngeal airway main body 1 is inserted through the oral cavity, and the other end enters the airway opening in the throat. During the patient's sleep wearing process, an effective breathing channel (indicated by a in the figure) is established, avoiding the fall of the soft tissues in the patient's oral cavity from blocking the airway. At the same time, during the wearing and use, the air flow sensor 2 on the inner wall of the pharyngeal airway main body 1 can real-time detect the information data of the air flow passing through the inner cavity of the pharyngeal airway main body 1 during sleep and store it in the processor. At the same time, it can also be sent to the terminal, APP, smart bracelet, etc. connected to the communicator through the communicator. Both the patient and medical staff can judge the patient's sleep breathing condition through the monitored data so as to make timely adjustments and treatments.

[0031] As a preferred implementation manner, the pharyngeal airway main body 1 is a silica gel airway, and a support net 11 woven by metal wires is embedded in its inner wall.

[0032] In the above implementation scheme, the support net 11 woven by metal wires is embedded in the inner wall of the pharyngeal airway main body 1. Its hardness is harder than that of the external pharyngeal airway main body 1 and has a certain elastic deformation. Such a design makes the pharyngeal airway main body 1 have a composite structure design of soft + hard combination, making the whole product have the characteristics of "rigid support + flexible contact".

[0033] In this embodiment, the above-mentioned metal wire is an existing shape memory alloy wire. It has the property of rebounding after deformation. When establishing a channel in the oral cavity, it can keep the channel unobstructed and can adaptively adjust the shaping according to the internal environment of the oral cavity.

[0034] In this embodiment, the pharyngeal airway main body 1 is made of medical-grade silica gel material (Shore hardness is 30A - 50A), and the diameter size of the metal wire is 0.5 - 1 mm.

[0035] In this embodiment, anti-slip patterns are also provided on the outer surface of the pharyngeal airway main body 1, so that the pharyngeal airway main body 1 fits more closely with the oral soft tissues through the anti-slip patterns after entering the oral cavity, reducing relative displacement, keeping the position of the entire pharyngeal airway main body 1 from changing easily, and thus enabling the ventilation channel to maintain a better state.

[0036] As a preferred implementation manner, a plurality of the above-mentioned airflow sensors 2 are provided and are spaced apart and distributed in different orientations on the inner wall of the above-mentioned pharyngeal airway main body 1.

[0037] In the above-mentioned implementation scheme, the airflow sensors 2 are evenly distributed on the inner wall of the pharyngeal airway main body 1, and can detect the airflow at different positions, making the measured airflow information data more accurate, avoiding monitoring blind spots, and ensuring the effectiveness of monitoring.

[0038] As a preferred implementation manner, a gas filtration component is installed in one end port of the above-mentioned pharyngeal airway main body 1.

[0039] In the above-mentioned implementation scheme, the design of the gas filtration component can filter large particles in the external gas during the patient's breathing process, and the patient's breathing effect is better.

[0040] In this embodiment, an annular support ring is provided in the inner wall of the pharyngeal airway main body 1. The gas filtration component includes a columnar tube shell and a filler arranged in the tube shell. Filter meshes are provided at both ends of the tube shell to prevent the filler from running out. The gas filtration component can be snapped into one end port of the pharyngeal airway main body 1.

[0041] In this embodiment, the airflow sensor 2 is an existing product, and an existing micro airflow sensor of a suitable model can be used.

[0042] As a preferred implementation manner, the above-mentioned limiting part 111 is an arc-shaped sheet member.

[0043] In the above-mentioned implementation scheme, the shape of the limiting part 111 is approximately the same as the external physiological arc of the patient's lips, and has a certain thickness, and can fit outside the patient's lips, making the whole device fit more tightly.

[0044] In this embodiment, the above-mentioned communicator is a Bluetooth communicator or a 4G / 5G communicator. Among them, both the Bluetooth communicator and the 4G / 5G communicator are products of the prior art, and the models can be flexibly adapted according to the usage requirements, which will not be elaborated here.

[0045] As a preferred embodiment, as Figure 4 shown, an oxygen inlet 13 is provided on the above-mentioned limiting part 111, an oxygen supply port (designated by c in the figure) is provided on the inner wall of the above-mentioned pharyngeal airway main body 1, and the oxygen supply port is connected to the oxygen inlet 13 through a channel.

[0046] In the above-mentioned implementation, the design of the oxygen inlet 13 can be connected to a ventilator interface, and oxygen is supplied into the ventilation channel through the oxygen inlet 13 to ensure the oxygen supply of the patient and better promote the patient's sleep breathing.

[0047] In this embodiment, the above-mentioned pharyngeal airway main body 1 extends in a curved shape as a whole, and the shape of its cross-section is oval. The oval cross-section design increases the width compared with the traditional oropharyngeal airway, and the air flow is smoother.

[0048] In this embodiment, as Figure 5 shown, elastic bandages 112 are connected to both ends of the above-mentioned limiting part 111. When wearing, the elastic bandages 112 bypass the patient's head, so that the pharyngeal airway main body 1 will not easily come off.

[0049] In this embodiment, sensors for measuring humidity and temperature can also be added to the limiting part 111 to monitor the indoor temperature and humidity information during sleep.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A personalized oropharyngeal airway device based on 3D printing, characterized in that: It includes a flexible pharyngeal airway main body (1) made by 3D printing. A limiting part (111) is provided at one end of the pharyngeal airway main body (1). An air flow sensor (2) is provided on the inner wall of the pharyngeal airway main body (1). A processor, a power supply and a communicator are provided on the limiting part (111). The processor is respectively connected to the power supply, the air flow sensor (2) and the communicator, and the power supply is connected to the communicator.

2. The personalized oropharyngeal airway device based on 3D printing according to claim 1, wherein: The pharyngeal airway main body (1) is a silica gel airway, and a support net (11) woven with metal wires is embedded in its inner wall.

3. The personalized oropharyngeal airway device based on 3D printing according to claim 2, wherein: The metal wire is a shape memory alloy wire.

4. The personalized oropharyngeal airway device based on 3D printing according to claim 1, wherein: A plurality of the air flow sensors (2) are provided and are spaced apart and distributed in different orientations on the inner wall of the pharyngeal airway main body (1).

5. The personalized oropharyngeal airway device based on 3D printing according to claim 1, wherein: A gas filtration assembly is installed in one end port of the pharyngeal airway main body (1).

6. The personalized oropharyngeal airway device based on 3D printing according to claim 1, wherein: The limiting part (111) is an arc-shaped sheet member.

7. The personalized oropharyngeal airway device based on 3D printing according to claim 1, wherein: The communicator is a Bluetooth communicator or a 4G / 5G communicator.

8. The personalized oropharyngeal airway device based on 3D printing according to claim 1, characterized in that: An oxygen inlet (13) is provided on the limiting part (111), and an oxygen supply port is provided on the inner wall of the pharyngeal airway main body (1). The oxygen supply port is connected to the oxygen inlet (13) through a channel.

9. A personalized oropharyngeal airway device based on 3D printing according to any one of claims 1 to 8, characterized in that: The pharyngeal airway main body (1) extends in a curved shape as a whole, and the shape of its cross section is an ellipse.

10. A personalized oropharyngeal airway device based on 3D printing according to any one of claims 1 to 8, characterized in that: Elastic bandages (112) are connected to both ends of the limiting part (111).

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