Nasopharynx breather pipe

Abstract

The invention provides a nasopharynx breather pipe, and relates to the technical field of nasopharynx breather pipes. The nasopharynx breather pipe comprises a nasopharynx breather pipe body, a rubber ball, a spherical cover, a first micropore, an arc-shaped baffle, a second micropore, a memory alloy plate and pure cotton gauze, the rubber ball is arranged outside the nasopharynx breather pipe body, the spherical cover is arranged outside the rubber ball, the pure cotton gauze is arranged outside the spherical cover, the first micropore is formed in the side wall of the spherical cover, and the arc-shaped baffle is arranged on the inner wall of the spherical cover. The memory alloy plate is connected with the arc-shaped baffle, the rubber ball and the spherical cover are used for storing liquid medicine, the rubber ball expands or contracts to discharge the liquid medicine outwards or absorb the liquid medicine inwards, and the memory alloy plate is straightened or bent to drive the first micropores and the second micropores to be communicated or staggered. Local heating and swelling are caused by inflammation in the nasal cavity of a patient, the rubber ball is heated and expanded to drive liquid medicine to be discharged, the pure cotton gauze is extruded to evenly coat the liquid medicine, and the liquid medicine is conveniently discharged or supplemented through deformation of the memory alloy plate.

Description

Technical Field

[0001] The present invention relates to the technical field of nasopharyngeal airways, and in particular to a nasopharyngeal airway. Background Art

[0002] The nasopharyngeal airway is an artificial airway inserted into the patient's pharynx through the nostrils. Its main function is to relieve tongue retraction and maintain upper airway patency. It is used for nasotracheal intubation, awake tracheal intubation, respiratory management of obese patients and patients with difficult airway, and anesthesia induction and recovery period.

[0003] The existing mucosal capillaries inside the nasal cavity are relatively fragile. During the insertion process, the front conical head may cause bleeding inside the patient's nasal cavity, inflammation, and local fever and swelling. Continuous injection of medicine for anti-inflammatory treatment is required according to the recovery situation, which is inconvenient to operate. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a nasopharyngeal airway.

[0005] The present invention provides a nasopharyngeal airway, comprising a nasopharyngeal airway body, a rubber ball, a spherical cover, a first micropore, an arc-shaped baffle, a second micropore, a memory alloy plate, and pure cotton gauze, wherein the rubber ball is sleeved on the outside of the nasopharyngeal airway body, the spherical cover is sleeved on the outside of the rubber ball, the pure cotton gauze is sleeved on the outside of the spherical cover, a plurality of the first micropores are evenly arranged on the side wall of the spherical cover, a plurality of the arc-shaped baffles are evenly arranged on the inner wall of the spherical cover along the circumferential direction, a plurality of the second micropores are evenly arranged on the arc-shaped baffles, a plurality of the memory alloy plates are evenly distributed and connected to the corresponding arc-shaped baffles, a space between the outer side of the rubber ball and the inner side of the spherical cover is a storage space, the storage space is used to store medicine, and when the rubber ball expands or contracts due to heat and recovers, the storage space is driven to discharge the medicine outward or absorb the medicine inward, and when the memory alloy plate is straightened or bent due to heat and recovers, the arc-shaped baffle is driven to rotate forward and reverse relative to the spherical cover, so as to connect or stagger the first micropore and the second micropore.

[0006] Optionally, a PP plastic tube is provided on the outer sliding sleeve of the nasopharyngeal ventilation tube body, a positioning ring is coaxially fixed to the end of the PP plastic tube, the inner side of the middle part of the rubber ball is coaxially fixed to the outer side of the PP plastic tube, and the multiple memory alloy plates are evenly distributed circumferentially along the axis of the PP plastic tube and the ends are fixed to the outer side of the PP plastic tube.

[0007] Optionally, the inner side of the middle part of the spherical cover is coaxially fixed on the outer side of the PP plastic tube, a plurality of the first microholes are evenly distributed along the spherical surface of the spherical cover and are opened through the side wall, the storage space inside the spherical cover is connected to the outside through the first microholes, and the inner side of the pure cotton gauze is fixed on the outer side of the spherical cover.

[0008] Optionally, arc-shaped L-plates are symmetrically arranged on both sides of the arc-shaped baffle, the arc-shaped L-plates are fixed on the inner wall of the spherical cover, the outer side of the arc-shaped baffle matches the shape of the inner side of the arc-shaped L-plate and are slidably connected to each other, the arc-shaped baffle is slidably connected to the inner wall of the spherical cover, and a plurality of second microholes are evenly arranged inside the arc-shaped baffle along the direction of the arc-shaped trajectory, and the memory alloy plate is fixed on the inner side of the arc-shaped baffle at one end facing away from the PP plastic tube.

[0009] Optionally, a connecting pipe is fixedly connected to the outside of the spherical cover, and the connecting pipe passes through the interior of the positioning ring and is fixedly connected to a hose at the outer end. A sleeve is coaxially fixed to the outside of one end of the hose facing away from the connecting pipe, and a medicine storage tube is detachably installed on the outside of the sleeve. An elastic mechanism is provided in the sleeve, and a driving member is provided in the medicine storage tube. When the sleeve and the medicine storage tube are installed with each other, the elastic mechanism is triggered by the driving member to connect the driving sleeve with the medicine storage tube. When the sleeve and the medicine storage tube are disassembled from each other, the elastic mechanism is triggered by the driving member to seal the inside of the sleeve.

[0010] Optionally, the outer side of the end of the sleeve facing away from the hose is threadedly connected to the inner side of the drug inlet of the drug storage tube, an annular plate is coaxially fixed to the outer side of the sleeve, a sealing gasket is attached to the bottom end of the annular plate, the sealing gasket is sleeved on the outer side of the sleeve, a piston is slidingly provided on the inner wall of the drug storage tube, and a limiting ring is coaxially fixed to the inner side of the end of the drug storage tube facing away from the drug inlet.

[0011] Optionally, the elastic mechanism includes a conical hole, a metal ball and a spring, the conical hole is opened in the end of the sleeve, the spring is fixed on the inner end surface of the sleeve, the metal ball is fixed on the end of the spring away from the hose, and the spring is always in a compressed state.

[0012] Optionally, the driving member includes a push rod and a support rod, both ends of the support rod are fixed on the inner wall of the medicine storage tube near the medicine inlet, the push rod is fixed in the middle of the end face of the support rod, and a one-way valve is fixedly installed on the side of the hose near the sleeve.

[0013] Optionally, the nasopharyngeal ventilation tube body includes an oxygen supply module, a carbon dioxide collection module, a suction module, a camera module, a camera flushing module, an airbag module, a nebulizer tube module and a local anesthesia tube module. A plurality of evenly distributed ventilation hoses are fixedly provided inside the nasopharyngeal ventilation tube body along the circumferential direction, and an airbag is fixedly provided on the outside of the insertion end of the nasopharyngeal ventilation tube body.

[0014] Optionally, a transparent hose is coaxially fixed to the outside of the nasopharyngeal ventilation tube body, a plurality of evenly distributed micropores are opened in the side wall of the transparent hose, the inside of the transparent hose is filled with pure cotton gauze, the end of the transparent hose is fixedly connected to a telescopic hose, and the other end of the telescopic hose is fixedly connected to a plurality of first micropores on the spherical cover.

[0015] The beneficial effects of the nasopharyngeal airway of the present invention are: 1. The nasopharyngeal airway body is fixed in position by compressing the outer side of the pure cotton gauze and locking it into the patient's nasal cavity; 2. The inflammation inside the patient's nasal cavity causes localized fever and swelling, which causes the memory alloy plate to become straight due to heat, driving the arc baffle to rotate relative to the spherical cover, connecting the first micropore and the second micropore. At the same time, the rubber ball expands due to heat, driving the medicine in the storage space to be discharged outward through the first and second micropores, thereby reducing inflammation and swelling. 3. The cotton gauze that has absorbed the medicine is squeezed by the swelling of the patient's nasal cavity wall, so that the cotton gauze evenly coats the medicine on the patient's nasal cavity wall. At the same time, the cotton gauze also plays a role in buffering protection and improving comfort; 4. The memory alloy plate bends and recovers, driving the arc baffle to rotate in the opposite direction relative to the spherical cover, so that the first micropore and the second micropore are staggered, making the storage space airtight. At the same time, when the rubber ball shrinks and recovers, the storage space automatically fills the external medicine inward due to the negative pressure, so that it can be used next time. 5. The multi-layer structure supports the patient to avoid swelling of the inner wall of the nasal cavity, which may squeeze the nasopharyngeal ventilation tube and affect the ventilation volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the nasopharyngeal airway according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the nasopharyngeal airway according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the medicinal solution extrusion structure of the nasopharyngeal ventilation tube according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the medicinal solution filling structure of the nasopharyngeal ventilation tube according to an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the arc-shaped L-plate and the arc-shaped baffle in the nasopharyngeal ventilation tube according to an embodiment of the present invention; Figure 6 for Figure 2 A magnified view of the structure at point A; Figure 7 for Figure 2 A magnified view of the structure at point B in FIG; Figure 8 This is a schematic diagram of the structure of the nasopharyngeal airway body in the nasopharyngeal airway according to an embodiment of the present invention; Explanation of the accompanying reference numerals: 100, nasopharyngeal ventilation tube body; 200, PP plastic tube; 300, rubber ball; 400, spherical cover; 401, first micropore; 500, arc-shaped L-plate; 501, arc-shaped baffle; 502, second micropore; 503, memory alloy plate; 600, pure cotton gauze; 700, connecting tube; 701, hose; 702, one-way valve; 703, sleeve; 704, conical hole; 705, metal ball; 706, spring; 707, annular plate; 708, sealing gasket; 800, medicine storage tube; 801, piston; 802, limiting ring; 803, push rod; 804, support rod; 900, positioning ring; 1000, transparent hose; 1001, micropore; 1002, telescopic hose. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0020] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] like Figure 1-8As shown, an embodiment of the present invention provides a nasopharyngeal ventilation tube, including a nasopharyngeal ventilation tube body 100, a rubber ball 300, a spherical cover 400, a first micropore 401, an arc-shaped baffle 501, a second micropore 502, a memory alloy plate 503 and a pure cotton gauze 600. The rubber ball 300 is sleeved on the outside of the nasopharyngeal ventilation tube body 100, the spherical cover 400 is sleeved on the outside of the rubber ball 300, and the pure cotton gauze 600 is sleeved on the outside of the spherical cover 400. A plurality of first micropores 401 are evenly arranged on the side wall of the spherical cover 400, and a plurality of arc-shaped baffles 501 are evenly arranged on the inner wall of the spherical cover 400 along the circumferential direction. On the upper surface, multiple second micropores 502 are evenly arranged in the arc baffle 501, and multiple memory alloy plates 503 are evenly distributed and connected to the corresponding arc baffles 501. The space between the outer side of the rubber ball 300 and the inner side of the spherical cover 400 is a storage space, which is used to store medicine. When the rubber ball 300 expands or contracts due to heat and recovers, it drives the storage space to discharge the medicine outward or absorb the medicine inward. When the memory alloy plate 503 is straightened or bent due to heat and recovers, it drives the arc baffle 501 to rotate forward and backward relative to the spherical cover 400, so as to connect or stagger the first micropores 401 and the second micropores 502.

[0022] In this embodiment, the front end conical head of the nasopharyngeal ventilation tube body 100 is inserted into the pharynx through the patient's nasal cavity, so that the outer side of the pure cotton gauze 600 is compressed and deformed and engaged in the patient's nasal cavity, and the position of the nasopharyngeal ventilation tube body 100 is fixed. When inflammation occurs inside the patient's nasal cavity, causing local fever and swelling, the memory alloy plate 503 is heated and straightened, driving the arc baffle 501 to rotate relative to the spherical cover 400, so that the first micropore 401 and the second micropore 502 are connected. At the same time, the rubber ball 300 is heated and expanded, driving the storage space to discharge the medicine outward, and then the medicine enters the corresponding first micropore 401 through the multiple second micropores 502, and then passes through the first micropore 401. The liquid flows to the pure cotton gauze 600, which absorbs the liquid medicine. Since the inner wall of the patient's nasal cavity is swollen, it squeezes the pure cotton gauze 600, so that the liquid medicine in the pure cotton gauze 600 is squeezed out and evenly coated on the inner wall of the patient's nasal cavity. The liquid medicine disinfects and reduces inflammation at the inflamed area. When the inflammation is relieved, the inner wall of the patient's nasal cavity is swollen and the temperature is reduced. At this time, the memory alloy plate 503 bends and recovers, and drives the arc baffle 501 to rotate in the opposite direction relative to the spherical cover 400, so that the first micropore 401 and the second micropore 502 are staggered. At the same time, when the rubber ball 300 shrinks and recovers, the storage space is automatically filled with liquid medicine due to the negative pressure, so that it can be used next time. The outer side of the pure cotton gauze 600 is compressed and deformed and locked into the patient's nasal cavity, thereby fixing the position of the nasopharyngeal ventilation tube body 100; due to the local heating and swelling caused by inflammation inside the patient's nasal cavity, the memory alloy plate 503 is heated and straightened, driving the arc baffle 501 to rotate relative to the spherical cover 400, so that the first micropore 401 and the second micropore 502 are connected. At the same time, the rubber ball 300 is heated and expanded, driving the medicine in the storage space to be discharged outward through the first micropore 401 and the second micropore 502, thereby reducing inflammation and swelling; the swelling of the inner wall of the patient's nasal cavity squeezes the pure cotton gauze 600 that has absorbed the medicine , so that the pure cotton gauze 600 evenly coats the medicine on the inner wall of the patient's nasal cavity, and at the same time, the pure cotton gauze 600 also plays a role in buffering protection and improving comfort; the memory alloy plate 503 is bent and restored and drives the arc baffle 501 to rotate in the opposite direction relative to the spherical cover 400, so that the first micropore 401 and the second micropore 502 are staggered, making the storage space airtight, and at the same time, when the rubber ball 300 shrinks and recovers, the storage space is automatically filled inward by the external medicine due to the negative pressure, so that it is convenient for next use; the multi-layer structure support prevents the swelling of the patient's nasal cavity inner wall from squeezing the nasopharyngeal ventilation tube body 100 and affecting the ventilation volume.

[0023] like Figure 1 and Figure 3 As shown, optionally, a PP plastic tube 200 is provided on the outer sliding sleeve of the nasopharyngeal ventilation tube body 100, a positioning ring 900 is coaxially fixed to the end of the PP plastic tube 200, the inner side of the middle part of the rubber ball 300 is coaxially fixed to the outer side of the PP plastic tube 200, and a plurality of memory alloy plates 503 are evenly distributed circumferentially along the axis of the PP plastic tube 200 and the ends are fixed to the outer side of the PP plastic tube 200.

[0024] In this embodiment, according to the principle of thermal expansion and contraction, the intermolecular interaction force of the rubber ball 300 is weakened as the temperature increases, and the distance between the molecules increases, resulting in an increase in the volume of the rubber ball 300. The principle of bending and straightening of the memory alloy plate 503 is mainly based on its shape memory effect and superelastic properties. Since it is a prior art, its principle will not be further described here. The positioning ring 900 drives the PP plastic tube 200 to slide on the outside of the nasopharyngeal airway body 100. The positioning ring 900 is made of a telescopic circular soft material. After the nasopharyngeal airway body 100 penetrates into the throat, the positioning ring 900 can be moved to the proximal end of the nose for fixation, thereby accurately fixing the depth of the nasopharyngeal airway body 100 entering the nasopharynx, improving the stability and accuracy of the nasopharyngeal airway body 100, and also increasing the comfort of the patient.

[0025] like Figure 2 、 Figure 3 and Figure 6As shown, optionally, the inner side of the middle part of the spherical cover 400 is coaxially fixed on the outer side of the PP plastic tube 200, and a plurality of first micropores 401 are evenly distributed along the spherical surface of the spherical cover 400 and are opened through the side wall. The storage space inside the spherical cover 400 is connected to the outside through the first micropores 401, and the inner side of the pure cotton gauze 600 is fixed on the outer side of the spherical cover 400.

[0026] In this embodiment, the storage space inside the spherical cover 400 is filled with medicine. When inflammation occurs inside the patient's nasal cavity, causing local fever and swelling, the rubber ball 300 expands due to heat and squeezes the medicine in the storage space to be discharged outward through the first micropore 401. The discharged medicine is absorbed by the pure cotton gauze 600, and the swelling of the patient's nasal cavity wall squeezes the pure cotton gauze 600, so that the medicine is squeezed out and evenly coated on the inner wall of the nasal cavity. Here, the pure cotton gauze 600 not only fixes the nasopharyngeal airway body 100 by deformation, thereby solving the disadvantage of the nasopharyngeal airway body 100 offset and sliding, but also absorbs and evenly squeezes out the medicine, so that the inner wall of the patient's nasal cavity is evenly coated with the medicine. In addition, it can also provide buffering protection for the inner wall of the patient's nasal cavity, thereby improving comfort.

[0027] like Figure 3 、 Figure 4 and Figure 5 As shown, optionally, arc-shaped L-plates 500 are symmetrically arranged on both sides of the arc-shaped baffle 501, and the arc-shaped L-plates 500 are fixed on the inner wall of the spherical cover 400. The outer side of the arc-shaped baffle 501 matches the shape of the inner side of the arc-shaped L-plate 500 and is slidably connected to each other. The arc-shaped baffle 501 is slidably connected to the inner wall of the spherical cover 400, and a plurality of second micropores 502 are evenly opened inside the arc-shaped baffle 501 along the shape trajectory direction of the arc-shaped baffle 501. The memory alloy plate 503 is fixed on the inner side surface of the arc-shaped baffle 501 at one end facing away from the PP plastic tube 200.

[0028] In this embodiment, Figure 3 and attached Figure 4The direction of the arrow in the middle is the direction of the liquid flow. The first micropores 401 and the second micropores 502 correspond to each other one by one. The structural design of the arc L plate 500 allows the arc baffle 501 to fit the inner wall of the spherical cover 400 and rotate relative to each other. The PP plastic tube 200 is used to improve the sensitivity of the memory alloy plate 503 when it is bent and straightened. When the temperature rises, the memory alloy plate 503 straightens and drives the arc baffle 501 to fit the inner wall of the spherical cover 400 and rotate relative to each other, so that the first micropores 401 and the second micropores 502 are connected. The storage space is connected to the outside through the interconnected first micropores 401 and second micropores 502, allowing the liquid medicine to be discharged. When the temperature drops, the memory alloy plate 503 bends and drives the curved baffle 501 to rotate relative to the inner wall of the spherical cover 400, causing the first micropores 401 and second micropores 502 to be offset. This disconnects the storage space from the outside, preventing the liquid medicine from being discharged. The liquid medicine in the storage space then decreases, creating a negative pressure, and the external liquid medicine automatically flows into the storage space. The spherical cover 400, curved L-shaped plate 500, and curved baffle 501 are all medical plastic parts.

[0029] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown, optionally, a connecting tube 700 is fixedly connected to the outside of the spherical cover 400, and the connecting tube 700 passes through the interior of the positioning ring 900 and is fixedly connected to a hose 701 at the outer end. A sleeve 703 is coaxially fixed to the outer side of one end of the hose 701 facing away from the connecting tube 700, and a drug storage tube 800 is detachably installed on the outside of the sleeve 703. An elastic mechanism is provided in the sleeve 703, and a driving member is provided in the drug storage tube 800. When the sleeve 703 and the drug storage tube 800 are installed with each other, the elastic mechanism is triggered by the driving member to connect the driving sleeve 703 with the drug storage tube 800. When the sleeve 703 and the drug storage tube 800 are disassembled from each other, the elastic mechanism is triggered by the driving member to seal the inside of the sleeve 703.

[0030] In this embodiment, when the sleeve 703 and the drug storage tube 800 are installed together, a driving member triggers an elastic mechanism, driving the sleeve 703 and the drug storage tube 800 into communication. The drug storage tube 800 is filled with liquid medicine. When the rubber ball 300 contracts and recovers, the liquid medicine in the storage space decreases, generating negative pressure. The liquid medicine is then drawn into the sleeve 703 through the hose 701, and then into the drug storage tube 800, achieving automatic replenishment of the liquid medicine. The drug storage tube 800 is made of a transparent material. When the liquid medicine in the drug storage tube 800 is almost used up, the sleeve 703 and the drug storage tube 800 are separated from each other. The driving member triggers the elastic mechanism, sealing the interior of the sleeve 703, thereby preventing external air from entering the sleeve 703 and preventing the liquid medicine in the storage space from flowing out through the hose 701. Pulling the hose 701 can move the PP plastic tube 200, thereby driving the positioning ring 900 to move outside the nasopharyngeal airway body 100, locking it into the nostril for positioning.

[0031] like Figure 2 and Figure 7 As shown, optionally, the outer side of the sleeve 703 facing away from the hose 701 is threadedly connected to the inner side of the drug inlet of the drug storage tube 800, and an annular plate 707 is coaxially fixed to the outer side of the sleeve 703, and a sealing gasket 708 is attached to the bottom end of the annular plate 707. The sealing gasket 708 is sleeved on the outer side of the sleeve 703, and a piston 801 is slidingly provided on the inner wall of the drug storage tube 800. A limiting ring 802 is coaxially fixed to the inner side of the end of the drug storage tube 800 facing away from the drug inlet.

[0032] In this embodiment, the sleeve 703 is rotated and screwed into the medicine inlet of the medicine storage tube 800. When the sealing gasket 708 attached to the bottom end of the annular plate 707 and the end face of the medicine inlet of the medicine storage tube 800 are extruded and deformed, the sleeve 703 and the medicine storage tube 800 are installed with each other. The extrusion deformation of the sealing gasket 708 improves the installation sealing performance, and the hose 701 is used to draw medicine from the medicine storage tube 800 through negative pressure. As the amount of medicine decreases, negative pressure is generated in the medicine storage tube 800, and the external air pressure squeezes the piston 801 through the inner side of the limiting ring 802, so that the piston 801 pushes the medicine, thereby realizing automatic replenishment of medicine.

[0033] like Figure 2 and Figure 7 As shown, optionally, the elastic mechanism includes a conical hole 704, a metal ball 705 and a spring 706. The conical hole 704 is opened in the end of the sleeve 703. The spring 706 is fixed on the inner end surface of the sleeve 703. The metal ball 705 is fixed on the end of the spring 706 facing away from the hose 701. The spring 706 is always in a compressed state.

[0034] In this embodiment, when the sleeve 703 and the medicine storage tube 800 are disassembled from each other, the spring 706 drives the metal ball 705 to move and squeeze into contact with the inner wall of the tapered hole 704, so that the sleeve 703 is disconnected from the external environment, ensuring that the medicine in the hose 701 does not flow outward.

[0035] like Figure 1 、 Figure 7 and Figure 8 As shown, optionally, the driving member includes a push rod 803 and a support rod 804, both ends of the support rod 804 are fixed on the inner wall of the medicine storage tube 800 near the medicine inlet, the push rod 803 is fixed in the middle of the end face of the support rod 804, and a one-way valve 702 is fixedly installed on the side of the hose 701 near the sleeve 703.

[0036] In this embodiment, when the sleeve 703 and the drug storage tube 800 are installed, the push rod 803 is driven to squeeze the metal ball 705, causing the metal ball 705 to move and compress the spring 706. At this time, the gap between the outer side of the metal ball 705 and the inner wall of the tapered hole 704 is opened, allowing the sleeve 703 and the drug storage tube 800 to communicate. When the sleeve 703 and the drug storage tube 800 are removed from each other, the push rod 803 moves away from the metal ball 705. Under the force of the spring 706's deformation recovery, the outer side of the metal ball 705 contacts the inner wall of the tapered hole 704, eliminating the gap and sealing the sleeve 703. The one-way valve 702 restricts the flow of the drug solution to only one direction, so when the rubber ball 300 squeezes and discharges the drug solution, the drug solution will not return to the sleeve 703. When the rubber ball 300 contracts and recovers, the drug solution in the sleeve 703 flows through the one-way valve 702 and the hose 701 into the spherical cover 400.

[0037] like Figure 1 and Figure 8 As shown, optionally, the nasopharyngeal ventilation tube body 100 includes an oxygen supply module, a carbon dioxide collection module, a suction module, a camera module, a camera flushing module, an airbag module, a nebulizer tube module and a local anesthesia tube module. A plurality of evenly distributed ventilation hoses are fixedly provided inside the nasopharyngeal ventilation tube body 100 along the circumferential direction, and an airbag is fixedly provided on the outside of the insertion end of the nasopharyngeal ventilation tube body 100.

[0038] In this embodiment, the central portion of the oxygen supply tube is located within the device body. It includes an oxygen supply port extending from the front of the device body and an oxygen supply hole located within the device body. The oxygen supply hole and the oxygen supply port are directly connected. In actual use, the oxygen supply tube is connected to an external oxygen supply device. The oxygen supply pressure is adjusted by the oxygen supply device according to the patient's specific needs. Generally speaking, the commonly used oxygen supply pressure range in clinical practice is between 0.2 and 0.4 MPa to meet the varying oxygen inhalation needs of patients. The middle portion of the carbon dioxide collection tube is located outside the device body. It includes a carbon dioxide output port extending from the front of the device body and a carbon dioxide collection port located outside the device body. The carbon dioxide collection port and the carbon dioxide output port are directly connected. The collection port is close to the patient's respiratory tract. When the patient exhales carbon dioxide, the gas enters the collection tube through the collection port and is then transported through the output port through a three-way connection to an external carbon dioxide collection and analysis instrument for monitoring. Medical staff can obtain real-time data related to the patient's exhaled carbon dioxide and understand the patient's respiratory and metabolic status. The middle portion of the suction tube is located outside the device body and includes a suction port extending from the front of the device body and a suction hole located inside the device body. The suction hole and the suction port are directly connected. The suction tube is connected to a negative pressure suction device. When gastric fluid or waste needs to be aspirated, the negative pressure suction switch is turned on. The negative pressure suction pipe generates suction, drawing the gastric fluid or waste into the suction tube through the suction port and then discharging it into an external collection device. The camera module consists of a camera tube, a camera, a light source, a camera guide wire, a sterile plastic film, and a camera power supply line. The camera and light source are integrally connected to one end of the camera guide wire, and the other end of the camera guide wire is connected to the camera power supply line, which is covered with a sterile plastic film on the outside. During the intubation process, the camera power supply line provides power to the camera and light source. The image captured by the camera is transmitted to an external display device through the camera power supply line. Medical staff can observe the situation at the front end of the intubation in real time, such as the physiological structure of the respiratory tract, whether there are foreign objects, etc., so as to accurately perform the intubation. The saline pipe and the negative pressure suction pipe are respectively installed on both sides of the external port of the camera pipe. The negative pressure suction switch is connected to the negative pressure suction pipe through a tee. When the camera needs to be cleaned, first open the valve of the saline pipe to allow the saline to flow out to flush the camera, then turn on the negative pressure suction switch. The negative pressure suction pipe will suck out the flushing fluid and secretions on the camera surface together, keeping the camera clear. The airbag module is fixed with an airbag on the outside of the insertion end of the nasopharyngeal airway body 100. In case of emergency, the gastroscopy surgery is stopped, and the airbag is pressurized and filled with air through the circuit connection ventilator to seal the throat. After the airbag seals the throat, the nasopharyngeal airway is connected to the mechanical ventilation equipment (simple breathing bag or anesthesia machine) for pressurized oxygen supply. The principle of mechanical ventilation is pressurized air supply. There is no need to insert a trachea. It is operated only at the airbag in the throat through the nasopharyngeal airway; forming a closed space, it cooperates with the main pressurization module to achieve efficient emergency respiratory support. The nebulized local anesthesia tube module includes a nebulized local anesthesia tube arranged in the intubation body. The middle part of the nebulized local anesthesia tube is located inside the device body. Its front end extends from the front of the device body and is provided with a nebulized local anesthesia nozzle. The rear end is connected to an external nebulized local anesthetic liquid supply device. The nebulized local anesthesia tube is arranged in parallel with other pipes in the intubation body, and is independent of each other to avoid mutual interference. When nebulized local anesthesia treatment is required, the nebulized local anesthetic liquid is transported from the external supply device to the nebulized local anesthesia nozzle through the nebulized local anesthesia tube. The nebulized local anesthesia nozzle atomizes the liquid and releases it into the patient's respiratory tract, performing local anesthesia on the tissues around the intubation, reducing the patient's pain during the intubation process, and achieving local drug administration treatment. To ensure the effect of nebulized local anesthesia, the nebulized local anesthesia nozzle adopts a special design that can evenly atomize the liquid into tiny particles, which is conducive to patient absorption. For example, the nozzle holes of the atomizing nozzle are precisely machined to have uniform and evenly distributed apertures, ensuring that the droplet size of the sprayed liquid is within the appropriate therapeutic range (generally 1-5 μm). Since this is prior art, the equipment it connects to and the specific process of its use will not be described here. The device features independent and coordinated oxygen supply tubes, carbon dioxide collection tubes, and suction tubes, enabling simultaneous operations on a single cannula to fulfill the functions of these modules. This eliminates the need for frequent instrument changes, reduces patient pain and infection risks, and improves medical efficiency. A visual camera module enables medical staff to observe the cannula position and the patient's internal conditions in real time during intubation, significantly reducing the risk of the cannula entering the esophagus or causing damage to the respiratory tract, thereby improving intubation accuracy and safety. Furthermore, the subglottic suction module effectively clears subglottic secretions, reducing the incidence of lung infection and further ensuring patient safety. The optimized carbon dioxide collection tube accurately collects exhaled carbon dioxide, minimizing interference from other gases. This provides medical staff with accurate carbon dioxide monitoring data, helping to better understand the patient's respiratory function and metabolic status, and providing a reliable basis for diagnosis and treatment. The newly added nebulizer and local anesthesia tube modules enable the device to not only meet basic respiratory support and monitoring needs, but also provide local anesthesia during intubation, alleviating patient pain, and allowing for nebulized medication during treatment. This expands the device's clinical application range and provides patients with a more comprehensive range of treatment options.

[0039] like Figure 1 and Figure 2 As shown, optionally, a transparent hose 1000 is coaxially fixed to the outside of the nasopharyngeal ventilation tube body 100, a plurality of evenly distributed micropores 1001 are opened in the side wall of the transparent hose 1000, the inside of the transparent hose 1000 is filled with pure cotton gauze 600, and the end of the transparent hose 1000 is fixedly connected to a telescopic hose 1002, and the other end of the telescopic hose 1002 is fixedly connected to the plurality of first micropores 401 on the spherical cover 400.

[0040] In this embodiment, the medicine enters the telescopic hose 1002 through the multiple first micropores 401, then enters the transparent hose 1000, and is absorbed by the pure cotton gauze 600 in the transparent hose 1000. The pure cotton gauze 600 that absorbs the medicine slowly penetrates the medicine outward through the micropores 1001, thereby reducing inflammation on the inner surface of the nasopharynx that is in contact with the outer side of the nasopharyngeal ventilation tube body 100.

[0041] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A nasopharyngeal ventilation tube, characterized in that: The invention comprises a nasopharyngeal ventilation tube body (100), a rubber ball (300), a spherical cover (400), a first micropore (401), an arc-shaped baffle (501), a second micropore (502), a memory alloy plate (503) and a pure cotton gauze (600), wherein the rubber ball (300) is sleeved on the outside of the nasopharyngeal ventilation tube body (100), the spherical cover (400) is sleeved on the outside of the rubber ball (300), the pure cotton gauze (600) is sleeved on the outside of the spherical cover (400), a plurality of the first micropores (401) are evenly arranged on the side wall of the spherical cover (400), a plurality of the arc-shaped baffles (501) are evenly arranged on the inner wall of the spherical cover (400) along the circumferential direction, and a plurality of The second micropores (502) are evenly arranged in the arc baffle (501), and the plurality of memory alloy plates (503) are evenly distributed and connected to the corresponding arc baffles (501). The space between the outer side of the rubber ball (300) and the inner side of the spherical cover (400) is a storage space, and the storage space is used to store liquid medicine. When the rubber ball (300) expands or contracts due to heat, the storage space is driven to discharge the liquid medicine outward or absorb the liquid medicine inward. When the memory alloy plate (503) is straightened or bent due to heat, the arc baffle (501) is driven to rotate forward and reverse relative to the spherical cover (400), so as to connect or stagger the first micropores (401) and the second micropores (502).

2. The nasopharyngeal airway according to claim 1, wherein: A PP plastic tube (200) is provided on the outer sliding sleeve of the nasopharyngeal ventilation tube body (100), a positioning ring (900) is coaxially fixed to the end of the PP plastic tube (200), the inner side of the middle portion of the rubber ball (300) is coaxially fixed to the outer side of the PP plastic tube (200), and a plurality of memory alloy plates (503) are evenly distributed circumferentially along the axis of the PP plastic tube (200) and the ends are fixed to the outer side of the PP plastic tube (200).

3. The nasopharyngeal airway according to claim 1, wherein: The inner side of the middle portion of the spherical cover (400) is coaxially fixed on the outer side of the PP plastic tube (200); a plurality of the first micropores (401) are evenly distributed along the spherical surface of the spherical cover (400) and are opened through the side wall; the storage space inside the spherical cover (400) is connected to the outside through the first micropores (401); and the inner side of the pure cotton gauze (600) is fixed on the outer side of the spherical cover (400).

4. The nasopharyngeal airway according to claim 1, wherein: Arc-shaped L-plates (500) are symmetrically arranged on both sides of the arc-shaped baffle (501), and the arc-shaped L-plates (500) are fixed on the inner wall of the spherical cover (400). The outer side of the arc-shaped baffle (501) matches the inner side of the arc-shaped L-plate (500) in shape and is slidably connected to each other. The arc-shaped baffle (501) is slidably connected to the inner wall of the spherical cover (400). A plurality of second micropores (502) are evenly opened inside the arc-shaped baffle (501) along the shape trajectory direction of the arc-shaped baffle (501). The end of the memory alloy plate (503) facing away from the PP plastic tube (200) is fixed on the inner side surface of the arc-shaped baffle (501).

5. The nasopharyngeal airway according to claim 1, wherein: The outside of the spherical cover (400) is fixedly connected with a connecting pipe (700), the connecting pipe (700) passes through the interior of the positioning ring (900) and the outside end is fixedly connected with a hose (701), a sleeve (703) is coaxially fixedly provided on the outside of one end of the hose (701) facing away from the connecting pipe (700), a medicine storage tube (800) is detachably mounted on the outside of the sleeve (703), an elastic mechanism is arranged in the sleeve (703), a driving member is arranged in the medicine storage tube (800), when the sleeve (703) and the medicine storage tube (800) are mounted on each other, the elastic mechanism is triggered by the driving member to connect the driving sleeve (703) with the medicine storage tube (800), and when the sleeve (703) and the medicine storage tube (800) are disassembled from each other, the elastic mechanism is triggered by the driving member to seal the inside of the sleeve (703).

6. The nasopharyngeal airway according to claim 5, characterized in that: The outer side of the sleeve (703) away from the hose (701) is threadedly connected to the inner side of the medicine inlet of the medicine storage tube (800), the outer side of the sleeve (703) is coaxially fixed with an annular plate (707), the bottom end of the annular plate (707) is attached with a sealing gasket (708), the sealing gasket (708) is sleeved on the outer side of the sleeve (703), a piston (801) is slidably provided on the inner wall of the medicine storage tube (800), and a limiting ring (802) is coaxially fixed on the inner side of the end of the medicine storage tube (800) away from the medicine inlet.

7. The nasopharyngeal airway according to claim 5, characterized in that: The elastic mechanism comprises a tapered hole (704), a metal ball (705) and a spring (706); the tapered hole (704) is opened in the end of the sleeve (703); the spring (706) is fixedly provided on the inner end surface of the sleeve (703); the metal ball (705) is fixedly provided on the end of the spring (706) facing away from the hose (701); and the spring (706) is always in a compressed state.

8. The nasopharyngeal airway according to claim 5, wherein: The driving member includes a push rod (803) and a support rod (804), both ends of the support rod (804) are fixed on the inner wall of the medicine storage tube (800) near the medicine inlet, the push rod (803) is fixed on the middle part of the end face of the support rod (804), and a one-way valve (702) is fixedly installed on the side of the hose (701) near the sleeve (703).

9. The nasopharyngeal airway according to claim 1, wherein: The nasopharyngeal ventilation tube body (100) comprises an oxygen supply module, a carbon dioxide collection module, a suction module, a camera module, a camera flushing module, an airbag module, and an atomized local anesthesia tube module. A plurality of evenly distributed ventilation hoses are fixedly arranged in the circumferential direction inside the nasopharyngeal ventilation tube body (100), and an airbag is fixedly arranged on the outside of the insertion end of the nasopharyngeal ventilation tube body (100).

10. The nasopharyngeal airway according to claim 1, wherein: A transparent hose (1000) is coaxially fixed to the outside of the nasopharyngeal ventilation tube body (100), a plurality of evenly distributed micropores (1001) are opened in the side wall of the transparent hose (1000), the inside of the transparent hose (1000) is filled with pure cotton gauze (600), and the end of the transparent hose (1000) is fixedly connected to a telescopic hose (1002), and the other end of the telescopic hose (1002) is fixedly connected to a plurality of first micropores (401) on the spherical cover (400).

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