An oropharyngeal airway for dental patient anesthesia

Abstract

The application discloses an oropharyngeal airway for dental patient anesthesia and belongs to the technical field of oropharyngeal airways, which comprises a straight pipe and an elbow pipe, a plurality of notches are formed in the lower side wall of the elbow pipe, a tongue pushing assembly is installed in the notches, the tongue pushing assembly is used for pushing the tongue of a patient, the tongue pushing assembly comprises rotating wheels installed in the notches, a plurality of friction pads are fixedly installed on the outer walls of the rotating wheels, rotating rods are fixedly installed between two adjacent rotating wheels, a guide groove is formed in the lower side wall of the elbow pipe, and a driving assembly is installed in the guide groove, wherein the driving assembly comprises a first rack slidingly installed in the guide groove. The rotating wheels and the friction pads can push the tongue when the elbow pipe is inserted into the throat, the tongue has a tendency to stretch outwards, the tongue is prevented from falling backwards, the airway is rapidly opened, the elbow pipe is prevented from being blocked by the tongue and being difficult to be inserted into the throat, and time for treatment is saved.

Description

Technical Field

[0001] This application belongs to the field of oropharyngeal airway technology, specifically an oropharyngeal airway for anesthesia of dental patients. Background Technology

[0002] In the dental industry, when performing dental treatment on patients under general anesthesia, a commonly used medical tool is the oropharyngeal airway. The oropharyngeal airway, also known as an oropharyngeal airway head, is a non-tracheal tube-type, non-invasive supraglottic airway head that prevents the tongue from falling back and blocking the airway.

[0003] In the use of traditional oropharyngeal airways, when the curved part is inserted into the patient's throat, it is easy to be blocked by the patient's unconscious tongue after general anesthesia, making it difficult to insert the airway into the patient's throat. This results in the airway being blocked and timely ventilation being impossible, causing discomfort to the patient. Therefore, this invention discloses an oropharyngeal airway for dental patients under anesthesia. Summary of the Invention

[0004] In view of the problem that the airway in the prior art is easily blocked by the patient's unconscious tongue, the purpose of the present invention is to provide an oropharyngeal airway for dental patients under anesthesia.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An oropharyngeal airway for anesthesia of dental patients includes a straight tube and a curved tube. The lower sidewall of the curved tube has multiple notches, and a tongue pusher assembly is installed inside the notches. The tongue pusher assembly is used to push the patient's tongue.

[0007] The tongue pusher assembly includes a rotating wheel installed inside the notch, a plurality of friction pads fixedly installed on the outer wall of the rotating wheel, and a rotating rod fixedly installed between two adjacent rotating wheels;

[0008] The lower side wall of the bend is provided with a guide groove, and a drive assembly is installed inside the guide groove. The drive assembly is used to drive the rotating wheel to rotate. The outer wall of the rotating rod is provided with multiple meshing teeth. The drive assembly includes a first rack that is slidably installed inside the guide groove. The first rack meshes with the meshing teeth. The first rack meshes with the meshing teeth on different rotating rods in sequence from the side away from the straight pipe to the side closer to the straight pipe.

[0009] Optionally, a pull rope is fixedly installed at one end of the first rack, and the pull rope passes through the bent pipe and the straight pipe in sequence and extends to the outside of the straight pipe.

[0010] Optionally, a second rack is fixedly installed at one end of the first rack, the second rack being inclined and in contact with the meshing teeth.

[0011] Optionally, a groove is provided on one side of the notch. The groove has an inclined structure. A movable ring is slidably installed inside the groove. The movable ring is rotatably installed outside the rotating rod. A coil spring is fixedly installed on the inner wall of the movable ring. The other end of the coil spring is fixedly connected to the outer wall of the rotating rod.

[0012] Optionally, a compression spring is fixedly installed at one end of the moving ring, and the other end of the compression spring is fixedly installed on the inner wall of the slide groove. The compression spring is used to compress the moving ring.

[0013] Optionally, a shrinkage groove is provided at the position corresponding to the upper side of the notch on the lower side wall of the bend. A locking rod is slidably installed inside the shrinkage groove. A return spring is fixedly installed at one end of the locking rod near the inside of the shrinkage groove. The other end of the return spring is fixedly connected to the inner wall of the shrinkage groove. A locking groove is provided at the position corresponding to the locking rod on the rotating rod. The size of the locking groove is adapted to the locking rod, and the locking rod and the locking groove are engaged.

[0014] Optionally, the lower side of the end of the clamping rod near the rotating rod is inclined, and the inclined part of the clamping rod is in contact with the outer wall of the rotating rod.

[0015] Optionally, a fixing cover is fixedly installed on one side of the lower end of the straight tube, and a piston chamber is opened at the lower end of the straight tube. A pressure plate is slidably installed inside the piston chamber. The lower end of the pressure plate has a rough structure. The pressure plate and the fixing cover are fitted together to squeeze the patient's tongue.

[0016] Optionally, a bellows is fixedly installed at one end of the guide groove near the straight pipe, and the end of the bellows near the straight pipe communicates with the inside of the piston cavity. A tension spring is fixedly installed at the upper end of the pressure plate, and the end of the tension spring away from the pressure plate is fixedly connected to the inside of the piston cavity. The moved first rack is pressed into contact with the bellows. A fixing bolt is threadedly installed at the end of the straight pipe away from the bend. One end of the pull rope extends through the side wall of the fixing bolt to the other side. The fixing bolt is used to fix the pull rope.

[0017] Optionally, the outer walls of the curved and straight tubes are embedded with multiple absorbent cottons, which are used to absorb secretions in the throat.

[0018] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0019] In the above scheme, the rotating wheel and friction pad can push the tongue when the curved tube is inserted into the throat, so that the tongue tends to protrude outward, preventing the tongue from falling back, quickly opening the airway, avoiding the tongue from blocking the curved tube and making it difficult to insert the curved tube into the throat, thus saving time for treatment.

[0020] The drive assembly can rotate the rotating wheel and, after moving a certain distance, engage with the meshing teeth to move the drive rod and the rotating wheel, thereby causing the rotating wheel to retract into the notch. This facilitates the subsequent removal of the curved tube from the patient's throat and prevents the rotating wheel from injuring the patient's throat.

[0021] The pressure plate, in conjunction with the bellows, allows air to enter the piston chamber after the first rack moves, causing the pressure plate to descend. This, along with the fixing cover, secures the device to the patient's tongue. Meanwhile, the absorbent cotton absorbs secretions from the throat. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the straight pipe and the bent pipe of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the rotating wheel and the notched portion of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B;

[0028] Figure 6 This is a schematic diagram of the coil spring and compression spring components of the present invention;

[0029] Figure 7 This is a schematic diagram of the locking lever and reset spring of the present invention;

[0030] Figure 8 This is a schematic diagram of the card slot portion of the present invention.

[0031] [Figure Labels]

[0032] 1. Straight pipe; 101. Fixing cover; 102. Piston chamber; 103. Pressure plate; 104. Fixing bolt;

[0033] 2. Bend; 201. Notch; 202. Guide groove; 203. Slide groove; 204. Moving ring; 205. Coil spring; 206. Compression spring; 207. Shrinkage groove; 208. Locking rod; 209. Return spring; 210. Bellows; 211. Tension spring; 212. Absorbent cotton;

[0034] 3. Push tongue assembly; 301. Rotating wheel; 302. Friction pad; 303. Rotating rod; 304. Meshing teeth; 305. Slot;

[0035] 4. Drive assembly; 401. First rack; 402. Pull rope; 403. Second rack.

[0036] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also use other alternative methods to implement the invention; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0040] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0042] like Figures 1 to 8 As shown, an embodiment of the present invention provides an oropharyngeal airway for dental patients under anesthesia, including a straight tube 1 and a curved tube 2. The lower side wall of the curved tube 2 has multiple notches 201, and a tongue pusher assembly 3 is installed inside the notches 201. The tongue pusher assembly 3 is used to push the patient's tongue.

[0043] The tongue pusher assembly 3 includes a rotating wheel 301 installed inside the notch 201. Multiple friction pads 302 are fixedly installed on the outer wall of the rotating wheel 301. A rotating rod 303 is fixedly installed between two adjacent rotating wheels 301.

[0044] A guide groove 202 is provided on the lower side wall of the bend 2. A drive assembly 4 is installed inside the guide groove 202. The drive assembly 4 is used to drive the rotating wheel 301 to rotate. Multiple meshing teeth 304 are provided on the outer wall of the rotating rod 303. The drive assembly 4 includes a first rack 401 that is slidably installed inside the guide groove 202. The first rack 401 meshes with the meshing teeth 304. The first rack 401 meshes with the meshing teeth 304 on different rotating rods 303 in sequence from the side away from the straight pipe 1 to the side closer to the straight pipe 1. A pull rope 402 is fixedly installed at one end of the first rack 401. The pull rope 402 passes through the bend 2 and the straight pipe 1 in sequence and extends to the outside of the straight pipe 1.

[0045] By adopting the above technical solution, during use, one end of the curved tube 2 is gradually inserted into the patient's mouth and then gradually inserted into the patient's throat. At the same time, the pull rope 402 is pulled, causing the first rack 401 to move. After being pulled, the first rack 401 can move along the direction of the guide groove 202. When the first rack 401 moves, it can engage with the meshing teeth 304, thereby causing the rotating rod 303 to rotate. After the rotating rod 303 rotates, it can drive the rotating wheel 301 fixedly connected to it to rotate. When the rotating wheel 301 rotates, the friction pad 302 on its outer wall can push the patient's tongue, thereby causing the patient's tongue to tend to protrude out of the mouth, avoiding the tongue blocking the end of the curved tube 2 and making it difficult for the curved tube 2 to be inserted into the patient's throat.

[0046] A second rack 403 is fixedly installed at one end of the first rack 401. The second rack 403 is inclined and presses against the meshing teeth 304. Under the action of the compression spring 206, the moving ring 204 can drive the rotating rod 303 to be located on the side of the slide groove 203 closest to the straight tube 1. A slide groove 203 is opened on one side of the notch 201. The slide groove 203 is inclined. The moving ring 204 is slidably installed inside the slide groove 203. The moving ring 204 is rotatably installed outside the rotating rod 303. A coil spring 205 is fixedly installed on the inner wall of the moving ring 204. The other end of the coil spring 205 is fixedly connected to the outer wall of the rotating rod 303.

[0047] A compression spring 206 is fixedly installed at one end of the moving ring 204, and the other end of the compression spring 206 is fixedly installed on the inner wall of the slide groove 203. The compression spring 206 is used to compress the moving ring 204.

[0048] By adopting the above technical solution, when the rotating rod 303 rotates and pulls the coil spring 205 to retract, the coil spring 205 will gradually tighten. When the coil spring 205 can no longer tighten, the movement of the first rack 401 drives the movement of the second rack 403, enabling the second rack 403 to contact the meshing tooth 304 and squeeze the meshing tooth 304. This causes the meshing tooth 304 to drive the rotating rod 303 to move. After the rotating rod 303 moves, it can drive the moving ring 204, which is rotatably connected to it, to move. Since the moving ring 204 is slidably connected to the slide groove 203, and the slide groove 203 is inclined, the rotating rod 303 can move along the direction of the slide groove 203 under the constraint of the moving ring 204 and the slide groove 203. As the first rack 401 moves away from the rotating rod 303, the meshing tooth 304 disengages from the second rack 403 after the rotating rod 303 and the meshing tooth 304 move to a certain position. At this time, the second rack 403 no longer squeezes the meshing tooth 304 and moves past the lower side of the rotating rod 303 as the first rack 401 moves. Then, as the pull rope 402 is pulled, the first rack 401 can mesh with the meshing tooth 304 on the next rotating rod 303. In this way, as the pull rope 402 is pulled, the next rotating rod 303 can move. When the rotating rod 303 moves, it can drive the rotating wheel 301 to move, so that the rotating wheel 301 gradually moves towards the inside of the bend 2 and retracts into the notch 201.

[0049] A shrinkage groove 207 is provided on the lower side wall of the bend 2 at the position corresponding to the upper side of the notch 201. A locking rod 208 is slidably installed inside the shrinkage groove 207. A return spring 209 is fixedly installed at one end of the locking rod 208 near the inside of the shrinkage groove 207. The other end of the return spring 209 is fixedly connected to the inner wall of the shrinkage groove 207. A slot 305 is provided on the rotating rod 303 at the position corresponding to the locking rod 208. The size of the slot 305 is adapted to the locking rod 208, and the locking rod 208 and the slot 305 are engaged and matched.

[0050] The lower side of the end of the clamping rod 208 near the rotating rod 303 is inclined, and the inclined part of the clamping rod 208 is in contact with the outer wall of the rotating rod 303.

[0051] By adopting the above technical solution, when the rotating rod 303 moves and squeezes the compression spring 206 and moves a certain distance, the outer wall of the rotating rod 303 can squeeze the inclined part on the clamping rod 208. Under the action of the decomposed force of the squeezing force, the clamping rod 208 can move and retract into the shrinkage groove 207. When the position of the clamping groove 305 is aligned with the position of the clamping rod 208, the clamping rod 208 can be squeezed and moved again under the elastic action of the return spring 209, and extend out of the shrinkage groove 207. The extended clamping rod 208 can be inserted into the clamping groove 305, thereby fixing the rotating rod 303. When it is necessary to reset the rotating rod 303, pull the clamping rod 208 to disengage it from the clamping groove 305. At this time, the compression spring 206 squeezes the moving ring 204, which can cause the moving ring 204 to drive the rotating rod 303 to move back to the initial position.

[0052] A fixing cover 101 is fixedly installed on one side of the lower end of the straight tube 1, and a piston chamber 102 is opened at the lower end of the straight tube 1. A pressure plate 103 is slidably installed inside the piston chamber 102. The lower end of the pressure plate 103 has a rough structure. The pressure plate 103 and the fixing cover 101 are fitted together to squeeze the patient's tongue.

[0053] A corrugated pipe 210 is fixedly installed at one end of the guide groove 202 near the straight pipe 1. The end of the corrugated pipe 210 near the straight pipe 1 is connected to the inside of the piston chamber 102. A tension spring 211 is fixedly installed at the upper end of the pressure plate 103. The end of the tension spring 211 away from the pressure plate 103 is fixedly connected to the inside of the piston chamber 102. The moved first rack 401 is pressed into contact with the corrugated pipe 210. A fixing bolt 104 is threadedly installed at the end of the straight pipe 1 away from the bend 2. One end of the pull rope 402 passes through the side wall of the fixing bolt 104 and extends to the other side. The fixing bolt 104 is used to fix the pull rope 402.

[0054] By adopting the above technical solution, when the first rack 401 moves to a certain position, as the pull rope 402 is pulled, the first rack 401 can squeeze the outer wall of the bellows 210. At this time, the air pressure in the bellows 210 will increase, so that air enters the piston chamber 102. When the air enters the piston chamber 102, it can squeeze the pressure plate 103, so that the pressure plate 103 will drop. The dropped pressure plate 103 can squeeze the upper end of the patient's tongue, so as to fix the device on the patient's tongue with the fixing cover 101, which can effectively prevent the patient's tongue from retracting into the respiratory tract. The end of the straight tube 1 away from the curved tube 2 can be made into a wide mouth shape to support the inner wall of the patient's mouth for fixation. Then, the fixing bolt 104 is rotated to move relative to the straight tube 1 and squeeze the pull rope 402, so that the pull rope 402 is fixed.

[0055] Multiple absorbent cottons 212 are embedded in the outer walls of the curved tube 2 and the straight tube 1. The absorbent cottons 212 are used to absorb secretions in the throat.

[0056] By adopting the above technical solution, the absorbent cotton 212 can absorb secretions in the patient's mouth and also absorb water that the saliva aspirator failed to absorb in time, thus preventing water used for cleaning from flowing into the patient's throat and causing discomfort.

[0057] The working process of the technical solution provided by this invention is as follows:

[0058] In use, first loosen the fixing bolt 104 by rotating it, then insert the end of the curved tube 2 into the patient's throat. Simultaneously, pull the pull rope 402 to move the first rack 401 and the second rack 403. The movement of the first rack 401 and the second rack 403 drives the rotating wheels 301 to rotate, continuously pushing the patient's tongue and preventing it from moving backward and obstructing or squeezing the curved tube 2, thus making it difficult to insert. As the curved tube 2 gradually inserts into the throat, the corresponding rotating wheel 301 will retract into the notch 201 under the action of the second rack 403, facilitating subsequent removal and preventing damage to the throat. After the rotating wheel 301 retracts into the notch 201, it is secured by the locking rod 208, ensuring stability. The device is positioned inside the notch 201. After the first rack 401 moves to a certain position, it can compress the bellows 210, causing the air in the bellows 210 to enter the piston chamber 102, thereby causing the pressure plate 103 to move. The moved pressure plate 103, together with the fixing cover 101, fixes the device in the patient's mouth. Finally, the fixing bolt 104 is rotated again, causing the fixing bolt 104 to move relative to the straight tube 1 and compress the pull rope 402, thus fixing the pull rope 402. When it is needed for the next use, the absorbent cotton 212 embedded in the bent tube 2 is removed, a new absorbent cotton 212 is replaced, and the locking rod 208 is pulled to disengage it from the locking groove 305. Under the action of the compression spring 206, the coil spring 205, the return spring 209, and the tension spring 211, each component can be reset, making it convenient for the next use.

[0059] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0060] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An oropharyngeal airway for anesthesia in dental patients, comprising a straight tube and a curved tube, characterized in that: The lower sidewall of the curved tube has multiple notches, and a tongue-pushing component is installed inside the notches. The tongue-pushing component is used to push the patient's tongue. The tongue pusher assembly includes a rotating wheel installed inside the notch, a plurality of friction pads fixedly installed on the outer wall of the rotating wheel, and a rotating rod fixedly installed between two adjacent rotating wheels; The lower side wall of the bend is provided with a guide groove, and a drive assembly is installed inside the guide groove. The drive assembly is used to drive the rotating wheel to rotate. The outer wall of the rotating rod is provided with multiple meshing teeth. The drive assembly includes a first rack that is slidably installed inside the guide groove. The first rack meshes with the meshing teeth. The first rack meshes with the meshing teeth on different rotating rods in sequence from the side away from the straight pipe to the side closer to the straight pipe. A pull rope is fixedly installed at one end of the first rack. The pull rope passes through the bent pipe and the straight pipe in sequence and extends to the outside of the straight pipe. A second rack is fixedly installed at the other end of the first rack. The second rack is set at an inclination and is in contact with the meshing teeth.

2. The oropharyngeal airway for dental patient anesthesia according to claim 1, characterized in that: A groove is provided on one side of the notch. The groove has an inclined structure. A movable ring is slidably installed inside the groove. The movable ring is rotatably installed outside the rotating rod. A coil spring is fixedly installed on the inner wall of the movable ring. The other end of the coil spring is fixedly connected to the outer wall of the rotating rod.

3. The oropharyngeal airway for dental patient anesthesia according to claim 2, characterized in that: A compression spring is fixedly installed at one end of the moving ring, and the other end of the compression spring is fixedly installed on the inner wall of the slide groove. The compression spring is used to compress the moving ring.

4. The oropharyngeal airway for dental patient anesthesia according to claim 3, characterized in that: A shrinkage groove is provided on the lower side wall of the bend, corresponding to the upper side of the notch. A locking rod is slidably installed inside the shrinkage groove. A return spring is fixedly installed on one end of the locking rod near the inside of the shrinkage groove. The other end of the return spring is fixedly connected to the inner wall of the shrinkage groove. A locking groove is provided on the rotating rod at the position corresponding to the locking rod. The size of the locking groove is adapted to the locking rod, and the locking rod and the locking groove are engaged.

5. The oropharyngeal airway for dental patient anesthesia according to claim 4, characterized in that: The lower side of the end of the clamp rod near the rotating rod is inclined, and the inclined part of the clamp rod is in contact with the outer wall of the rotating rod.

6. The oropharyngeal airway for dental patient anesthesia according to claim 5, characterized in that: A fixing cover is fixedly installed on one side of the lower end of the straight tube, and a piston chamber is opened at the lower end of the straight tube. A pressure plate is slidably installed inside the piston chamber. The lower end of the pressure plate has a rough structure. The pressure plate and the fixing cover are fitted together to squeeze the patient's tongue.

7. The oropharyngeal airway for dental patient anesthesia according to claim 6, characterized in that: A bellows is fixedly installed at one end of the guide groove near the straight tube. The end of the bellows near the straight tube is connected to the inside of the piston cavity. A tension spring is fixedly installed at the upper end of the pressure plate. The end of the tension spring away from the pressure plate is fixedly connected to the inside of the piston cavity. The moved first rack is pressed into contact with the bellows. A fixing bolt is threadedly installed at the end of the straight tube away from the bend. One end of the pull rope extends through the side wall of the fixing bolt to the other side. The fixing bolt is used to fix the pull rope.

8. The oropharyngeal airway for dental patient anesthesia according to claim 7, characterized in that: The outer walls of the curved and straight pipes are fitted with multiple absorbent cotton fibers, which are used to absorb secretions in the throat.

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