Laryngeal sprayer capable of effectively reducing oral discomfort for anesthesiology department

Abstract

The invention belongs to the technical field of medical equipment, and discloses an anesthesiology laryngeal sprayer capable of effectively reducing oral discomfort, the anesthesiology laryngeal sprayer comprises a mouth supporting assembly, an injection device and a control device, the mouth supporting assembly comprises an upper tooth socket and a lower tooth socket, a supporting device is connected between the upper tooth socket and the lower tooth socket, and the lower tooth socket is rotatably connected with a tongue depressor; the injection device comprises a base, the base is connected with a liquid medicine box, a liquid suction pump is arranged in the liquid medicine box, the liquid medicine box is connected with an injection pipe through a corrugated pipe, and the injection pipe is connected with an atomizing pump; a liquid outlet is formed in the injection tube, a first spring is connected to the end, close to the liquid outlet, of the injection tube, a blocking ball is connected to the free end of the first spring, and a handle is connected to the end, away from the liquid outlet, of the injection tube; the control device is used for controlling the moving speed of the injection tube; the problems that according to a current throat spraying anesthesia mode, the medicine applying difficulty is increased, smooth spraying of anesthetic is hindered, and the working efficiency is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a throat sprayer for anesthesiology which can effectively reduce oral discomfort. Background Art

[0002] The throat, including the pharynx, upper esophagus, larynx and trachea, leads to the stomach and lungs. It is the front upper part of the neck adjacent to the cheek. The throat is an organ for eating, breathing and pronunciation. The throat is connected to the mouth and nose above and the lungs and stomach below. It is the passage connecting the oral cavity and the lungs and stomach. It is also a key point for the circulation of meridians. The human throat is located at the back and lower part of the mouth. Anesthesiology is a special independent discipline in clinical medicine. It mainly includes clinical anesthesiology, emergency resuscitation medicine, critical care monitoring and treatment, pain diagnosis and treatment, and other related medicine and its mechanism research. It is a comprehensive discipline that studies anesthesia, analgesia, emergency resuscitation and critical care medicine. Anesthesia can be performed by injection, spray and other methods. In clinical practice, when awake endotracheal intubation is required for difficult airways, spray anesthesia is required on the surface of the throat.

[0003] At present, when performing throat spray anesthesia, a nozzle is placed in the oral cavity and slowly inserted inward along the throat until the nozzle port is inserted to the designated position, and then the liquid medicine pre-stored in the spray chamber is sprayed into the throat. However, since the throat of the human body is too sensitive, during the process of inserting the nozzle and spraying the liquid medicine, the patient will feel a foreign body sensation, which will cause the patient's body to resist and unconsciously close the mouth. Repeated operations will not only affect work efficiency, but also cause the patient to resist treatment, making it more difficult for medical staff to apply medicine; and the discomfort will also cause the patient to swallow subconsciously, and the patient's swallowing action will cause the position of the nozzle to move, which is not conducive to the smooth spraying of the anesthetic spray. Summary of the invention

[0004] The present invention aims to provide a throat spray for anesthesia that can effectively reduce oral discomfort, thereby solving the problem that the current throat spray anesthesia method easily causes discomfort to patients, causing patients to swallow unconsciously or close their mouths, thereby increasing the difficulty of applying medicine, hindering the smooth spraying of anesthetics, and reducing work efficiency.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A throat sprayer for anesthesia that can effectively reduce oral discomfort comprises an oral support assembly, an injection device and a control device, wherein the oral support assembly comprises an upper brace and a lower brace, a retractable support device is connected between the upper brace and the lower brace, and the lower brace is rotatably connected to a tongue depressor; the injection device comprises a base, the base is connected to a retractable member, the retractable member is connected to a liquid medicine box through a connecting frame, a liquid suction pump is arranged inside the liquid medicine box, the liquid medicine box is connected to a syringe through a bellows, and the syringe is connected to an atomizing pump; a plurality of liquid outlets are evenly opened on the side wall of the syringe, a plurality of first springs are connected to the inner side of the syringe, the free ends of the plurality of first springs are connected to blocking balls, the plurality of blocking balls are arranged in a one-to-one manner with the plurality of liquid outlets, and a handle is connected to one end of the syringe away from the liquid outlet; the control device is connected to the handle, and the control device is used to control the speed at which the syringe moves.

[0007] Furthermore, the control device includes a second rack slidingly connected to the connecting frame, the second rack is rotatably connected to the handle, the connecting frame is rotatably connected to a second gear, and the second gear is meshed with the second rack; the second gear is coaxially fixedly connected to a uniform speed component, and the uniform speed control component includes a fixed ratchet, a rotating disk, a tension spring and a pawl, the rotating disk is coaxially fixedly connected to the second gear, the fixed ratchet is connected to the connecting frame, the middle part of the pawl is rotatably connected to the rotating disk, the two ends of the tension spring are respectively connected to the rotating disk and one end of the pawl, and the other end of the pawl is matched with the ratchet teeth of the fixed ratchet; the connecting frame is also connected to a protective shell, and the second gear and the second rack are arranged on the inner side of the protective shell.

[0008] Furthermore, the second rack is connected to a connecting rod, and the connecting rod is rotatably connected to the handle via a universal ball.

[0009] Further, the supporting device includes a mounting shell that is fastened to the upper braces, the mounting shell is slidably connected to a first rack, and the mounting shell is rotatably connected to a first gear that meshes with the first rack; a second connecting rod is connected to the bottom of the mounting shell, the second connecting rod is rotatably connected to the first connecting rod, the first connecting rod is fastened to a connecting tube, the connecting tube is rotatably connected to the lower braces, and the connecting tube is fastened to the tongue depressor; the mounting shell is provided with a limiting component that limits the rotation of the first gear.

[0010] Further, the limiting component includes a sliding tube slidably connected to the rotating shaft of the first gear, and a second spring is arranged in the sliding tube, one end of the second spring is connected to the sliding tube, the other end of the second spring is connected to the rotating shaft of the first gear, and a blocking rod is connected to the outer wall of the sliding tube; the mounting shell is connected to a fixing sleeve, the inner diameter of the fixing sleeve is adapted to the outer diameter of the sliding tube; the fixing sleeve is provided with an annular hole and a strip hole which are interconnected, and the widths of the annular hole and the strip hole are adapted to the diameter of the blocking rod.

[0011] Furthermore, two groups of guide members are connected between the upper braces and the lower braces, and the guide members include a sliding sleeve connected to the upper braces, the sliding sleeve is slidably connected to a sliding rod, and the free end of the sliding rod is connected to the lower braces.

[0012] Furthermore, a suction cup is connected to the lower side of the base, two sets of telescopic parts are connected to the upper side of the base, the telescopic ends of the telescopic parts are connected to an arc-shaped baffle, the shape of the arc-shaped baffle is adapted to the forehead of the human body, and fixing belts are respectively connected to both sides of the arc-shaped baffle.

[0013] Furthermore, the fixing belt is an elastic belt, and soft support pads are provided on the inner side of the fixing belt and the arc-shaped baffle, and the free end of the fixing belt is connected with a Velcro.

[0014] Furthermore, the telescopic member includes a support sleeve that is tightly connected to the base, and a support tube is slidably connected inside the support sleeve; the base is rotatably connected to a screw rod, and the screw rod is slidably connected to a wire seat, and the wire seat is tightly connected to the support tube; the base is provided with a motor that drives the screw rod to rotate.

[0015] Furthermore, the outer wall of the support tube is connected with a slide rail, the inner wall of the support sleeve is provided with a slide groove, the slide rail is slidably connected in the slide groove, and the slide groove and the slide rail are both in a "convex" shape.

[0016] The principle and beneficial effects of the technical solution are:

[0017] 1. The present invention provides a throat sprayer for anesthesia that can effectively reduce oral discomfort. By arranging a mouth support component, an injection device and a control device to cooperate with each other, the mouth is prevented from closing unconsciously and the discomfort caused to the patient when injecting anesthetics is reduced, thereby reducing the difficulty of applying the medicine, facilitating the smooth spraying of anesthetics, and increasing work efficiency.

[0018] Specifically, the retractable support device stretches the upper and lower braces and presses down the tongue depressor at the same time, thereby stretching the patient's mouth and pressing down the tongue, preventing the patient's mouth from closing unconsciously and preventing the patient's tongue from interfering with the injection of anesthetics. The support device can also be retracted and adjusted to the distance of the stretch according to the oral conditions of different patients, and has a wide range of adaptability. Before injecting the drug solution, the medical staff inserts the injection tube into the patient's throat, and the suction pump sucks the anesthetic in the drug solution box into the injection tube. In the process of the injection tube being inserted into the throat, no pressure is applied to the inside of the injection tube. The blocking ball blocks the liquid outlet under the pulling force of the first spring to prevent saliva from entering the tube. When the injection tube is inserted into the throat, atomization begins, and the liquid in the tube needs to be pressurized. The blocking ball overcomes the pulling force of the first spring to open the liquid outlet, and the drug solution flows from the liquid outlet and the blocking ball. The liquid medicine is sprayed out through the annular gap. During the spraying process of the liquid medicine, under the action of the blocking ball, the impact force can be reduced, thereby reducing the impact of the liquid medicine on the throat and reducing the discomfort during the atomization drug administration process. The liquid medicine can also be further atomized and diffused, thereby increasing the contact area between the liquid medicine and the throat, improving the atomization effect and efficiency, further reducing the discomfort caused to the patient, and facilitating the smooth progress of the spraying of the medicine, thereby increasing the work efficiency. Moreover, the liquid medicines sprayed out from the adjacent liquid outlets cross-collide and complement each other, which can further improve the atomization effect of the liquid medicine, increase the contact area between the liquid medicine and the throat and the uniformity of the atomization drug administration, and also reduce the impact of the liquid medicine on the throat. The control device is used to control the speed at which the medical staff inserts the injection tube into the patient's throat, so that the insertion is smooth, the fluctuation is reduced, the discomfort caused to the patient is further reduced, and the work efficiency is increased.

[0019] 2. The present invention provides a throat sprayer for anesthesiology that can effectively reduce oral discomfort. By setting a second rack, a second gear, and a constant speed component, the uniformity of the movement of the injection tube is ensured, and the fluctuation of the insertion speed is avoided to cause pain to the patient and affect the smooth spraying of the medicine. Specifically, the medical staff operates the moving handle, the handle drives the second rack to slide, the second rack drives the second gear to rotate, and the second gear drives the rotating disk to rotate. When the rotating disk rotates evenly, the tension spring and the ratchet rotate with the rotation of the rotating disk, and the three are in a relatively static state. On the contrary, if the rotating disk suddenly accelerates or decelerates, the ratchet will overcome the force of the tension spring and rotate relatively under the action of centrifugal force, so that the ratchet engages with the ratchet teeth of the fixed ratchet wheel to limit the rotation of the ratchet, thereby limiting the rotation of the rotating disk to ensure the uniformity of the intubation and reduce the discomfort caused to the patient. The second rack is rotatably connected to the handle through a universal ball, and the medical staff can adjust the direction of the injection tube according to the patient's oral and throat conditions to further increase work efficiency.

[0020] 3. The present invention provides a throat sprayer for anesthesiology that can effectively reduce oral discomfort. The supporting device adopts a first gear, a first rack, a first connecting rod, a second connecting rod, a connecting tube and a limiting component. The supporting distance between the upper braces and the lower braces can be adjusted as needed to adapt to the oral cavity of different patients. The patient's tongue can be pressed down while the oral cavity is opened, which further increases the work efficiency. Specifically, the first gear is rotated, and the first gear drives the first rack to slide downward, and the first rack drives the lower braces to slide downward, thereby opening the patient's oral cavity. During the process of opening the upper braces and the lower braces, the second connecting rod drives the first connecting rod to rotate in a direction away from the lower braces, and the first connecting rod drives the connecting tube to rotate, and the connecting tube drives The movable tongue depressor rotates downward to press the patient's tongue down; the limiting component adopts a sliding tube, a second spring, and a blocking rod. When there is no need to adjust the distance between the upper braces and the lower braces, the sliding tube slides in a direction away from the first gear under the action of the rebound force of the second spring, so that the blocking rod slides into the strip hole. The width of the strip hole matches the diameter of the blocking rod, which can prevent the sliding tube from rotating, thereby limiting the rotation of the first gear; when it is necessary to adjust the distance between the upper braces and the lower braces, the sliding tube is pressed to make the blocking rod slide into the annular hole, and the sliding tube is rotated. When the upper braces and the lower braces are adjusted to the desired position, the sliding tube is stopped from being pressed, and the sliding tube slides outward under the action of the rebound force of the second spring, so that the blocking rod slides into the strip hole; the operation is convenient and quick, and the structure is stable.

[0021] 4. The present invention provides a throat sprayer for anesthesiology that can effectively reduce oral discomfort. The arrangement of the telescopic parts can adjust the height of the connecting frame and the medicine box according to different patients, and has a wide range of applicability. The motor drives the screw to rotate, and the screw drives the wire seat to slide along the axial direction of the screw, and the wire seat drives the support tube to slide along the axial direction of the support sleeve, thereby adjusting the height. The support sleeve and the support tube are slidably connected by a "convex"-shaped slide groove and a slide rail, so that the support tube can slide stably along the axial direction of the support sleeve.

[0022] 5. The present invention provides a throat sprayer for anesthesiology that can effectively reduce oral discomfort. The guide piece can play a guiding role to prevent the upper and lower braces from shaking during the movement, further reducing the discomfort caused to the patient; an arc-shaped baffle and a fixing belt are provided to fix the patient's head to prevent the patient from shaking during the spraying process, which affects the smooth spraying, and the fixing belt and the arc-shaped baffle are both connected to a soft support pad to further reduce the discomfort caused to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the throat sprayer for anesthesia department which can effectively reduce oral discomfort is shown in the figure. Figure 1 ;

[0024] Figure 2This is a schematic diagram of the structure of an oral support assembly of a throat sprayer for anesthesiology that can effectively reduce oral discomfort according to the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at E;

[0026] Figure 4 A side view of an oral support assembly of a throat sprayer for anesthesiology that can effectively reduce oral discomfort according to the present invention;

[0027] Figure 5 for Figure 4 Partial cross-sectional view of the middle DD;

[0028] Figure 6 A top view of a throat sprayer for anesthesiology that can effectively reduce oral discomfort according to the present invention;

[0029] Figure 7 for Figure 6 Partial cross-sectional view of AA;

[0030] Figure 8 A top view of an injection tube, an atomizing pump and a handle of a throat sprayer for anesthesia that can effectively reduce oral discomfort according to the present invention;

[0031] Fig. 9 for Figure 8 Cross-sectional view of CC;

[0032] Fig.10 The structure of the throat sprayer for anesthesia department which can effectively reduce oral discomfort is shown in the figure. Figure 2 ;

[0033] Fig.11 for Fig.10 A schematic diagram of the local enlarged structure at F;

[0034] Fig.12 It is a partial side view of a throat sprayer for anesthesiology that can effectively reduce oral discomfort according to the present invention;

[0035] Fig.13 for Fig.12 Partial cross-sectional view of BB.

[0036] The names of the corresponding marks in the accompanying drawings are:

[0037] 1. Base; 11. Support sleeve; 12. Support tube; 121. Slide rail; 13. Screw rod; 14. Motor; 15. Screw seat; 16. Suction cup; 17. Baffle; 18. Fixing belt; 19. Connecting frame; 21. Upper braces; 22. Lower braces; 23. Guide; 231. Slide sleeve; 232. Slide rod; 24. Mounting shell; 25. Tongue depressor; 26. Connecting tube; 261. First connecting rod; 262. Second connecting rod; 27. First rack; 28. First gear; 3 1. Injection tube; 311. First spring; 312. Blocking ball; 32. Handle; 321. Connecting rod; 33. Medicine box; 34. Atomizing pump; 35. Bellows; 41. Protective shell; 43. Second rack; 44. Second gear; 5. Constant speed assembly; 51. Fixed ratchet; 52. Ratchet; 53. Rotating disk; 54. Tension spring; 61. Rotating shaft; 62. Fixed sleeve; 63. Sliding tube; 64. Second spring; 65. Annular hole; 66. Stop rod; 67. Strip hole. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0039] like Figures 1 to 13 As shown, a throat sprayer for anesthesia that can effectively reduce oral discomfort includes an oral support assembly, an injection device, and a control device. The oral support assembly includes an upper brace 21 and a lower brace 22. A retractable support device is connected between the upper brace 21 and the lower brace 22. The lower brace 22 is rotatably connected to a tongue depressor 25.

[0040] The supporting device includes a mounting shell 24 that is fastened to the upper braces 21, the mounting shell 24 is slidably connected to a first rack 27, and the mounting shell 24 is rotatably connected to a first gear 28 that meshes with the first rack 27; a second connecting rod 262 is connected to the bottom of the mounting shell 24, the second connecting rod 262 is rotatably connected to a first connecting rod 261, the first connecting rod 261 is fastened to a connecting tube 26, the connecting tube 26 is rotatably connected to the lower braces 22, and the connecting tube 26 is fastened to a tongue depressor 25, two groups of guide members 23 are connected between the upper braces 21 and the lower braces 22, the guide member 23 includes a sliding sleeve 231 connected to the upper braces 21, the sliding sleeve 231 is slidably connected to a sliding rod 232, and the free end of the sliding rod 232 is connected to the lower braces 22;

[0041] The mounting housing 24 is provided with a limiting assembly for limiting the rotation of the first gear 28, and the limiting assembly includes a slide tube 63 slidably connected to the rotating shaft 61 of the first gear 28, and the rotating shaft 61 and the slide tube 63 are slidably connected through a "convex"-shaped slide rail and a slide groove; a second spring 64 is arranged in the slide tube 63, one end of the second spring 64 is connected to the slide tube 63, and the other end of the second spring 64 is connected to the rotating shaft 61 of the first gear 28, and a stop rod 66 is connected to the outer wall of the slide tube 63; the mounting housing 24 is connected to a fixing sleeve 62, and the inner diameter of the fixing sleeve 62 is adapted to the outer diameter of the sliding tube 63; the fixing sleeve 62 is provided with an annular hole 65 and a strip hole 67 which are interconnected, and the widths of the annular hole 65 and the strip hole 67 are adapted to the diameter of the stop rod 66;

[0042] The injection device includes a base 1, a suction cup 16 is provided at the bottom of the base 1 for fixing the base 1; the base 1 is connected to two sets of telescopic parts, the telescopic parts include a support sleeve 11 fastened to the base 1, and a support tube 12 is slidably connected in the support sleeve 11; the base 1 is rotatably connected to a screw rod 13, the screw rod 13 is slidably connected to a wire seat 15, and the wire seat 15 is fastened to the support tube 12; the base 1 is provided with a motor 14 for driving the screw rod 13 to rotate; the outer wall of the support tube 12 is connected to a slide rail 121, the inner wall of the support sleeve 11 is provided with a slide groove, the slide rail 121 is slidably connected in the slide groove, and the slide groove and the slide rail 121 are both "convex " shape; the telescopic end of the telescopic member is connected with an arc-shaped baffle 17, the shape of the arc-shaped baffle 17 is adapted to the forehead of the human body, and the two sides of the arc-shaped baffle 17 are respectively connected with fixing belts 18, the fixing belt 18 is an elastic belt, and the inner side of the fixing belt 18 and the arc-shaped baffle 17 are provided with soft support pads, and the free end of the fixing belt 18 is connected with Velcro; the support tube 12 is connected to a liquid box 33 through a connecting frame 19, and a suction pump is provided inside the liquid box 33. The liquid box 33 is connected to an injection tube 31 through a bellows 35, and the injection tube 31 is connected to an atomizing pump 34; the injection tube 31 is provided with a liquid outlet, and the injection tube 31 is close to the injection tube 31. The end near the liquid outlet is connected to a first spring 311, and the free end of the first spring 311 is connected to a blocking ball 312, the size of the blocking ball 312 is adapted to the size of the liquid outlet, and the end of the injection tube 31 away from the liquid outlet is connected to a handle 32; a control device is connected to the handle 32, and the control device is used to control the speed of movement of the injection tube 31, and the control device includes a second rack 43 slidably connected to the connecting frame 19, and the second rack 43 is connected to a connecting rod 321, and the connecting rod 321 is rotatably connected to the handle 32 through a universal ball, and the connecting frame 19 is rotatably connected to a second gear 44, and the second gear 44 is connected to the second The rack 43 is meshing; the second gear 44 is coaxially fixedly connected with a uniform speed component 5, and the uniform speed control component includes a fixed ratchet 51, a rotating disk 53, a tension spring 54 and a pawl 52. The rotating disk 53 is coaxially fixedly connected to the second gear 44, the fixed ratchet 51 is connected to the connecting frame 19, the middle part of the pawl 52 is rotatably connected to the rotating disk 53, the two ends of the tension spring 54 are respectively connected to the rotating disk 53 and one end of the pawl 52, and the other end of the pawl 52 is matched with the ratchet teeth of the fixed ratchet 51; a protective shell 41 is arranged outside the control device to prevent the second gear 44 and the second rack 43 from hurting medical staff or patients.

[0043] The specific implementation process is as follows:

[0044] When using the throat sprayer, adjust the height of the baffle 17 and the connecting frame 19 to suit the patient, hold the handle 32 to insert the injection tube 31 into the patient's throat, start the suction pump to suck the medicine into the injection tube 31, start the atomization pump 34 to atomize the medicine, and the blocking ball 312 opens the liquid outlet under the action of the first spring 311, and the medicine is sprayed out from the gap between the blocking ball 312 and the liquid outlet.

[0045] Among them, the present invention provides a throat sprayer for anesthesia that can effectively reduce oral discomfort. By arranging the mouth support component, the injection device and the control device to cooperate with each other, the mouth is prevented from closing unconsciously, and the discomfort caused to the patient when the anesthetic is injected is reduced, thereby reducing the difficulty of applying the medicine, facilitating the smooth spraying of the anesthetic, and increasing the work efficiency;

[0046] Specifically, the retractable support device stretches the upper braces 21 and the lower braces 22 apart while pressing down the tongue depressor 25, thereby stretching the patient's mouth apart while pressing down the tongue, preventing the patient's mouth from closing unconsciously and preventing the patient's tongue from interfering with the injection work. The support device can also be retracted to adjust the stretching distance according to the oral conditions of different patients, and has a wide range of adaptability. Before injecting the drug solution, the medical staff inserts the injection tube 31 into the patient's throat, and the suction pump sucks the anesthetic in the drug solution box 33 into the injection tube 31. During the process of the injection tube 31 being inserted into the throat, no pressure is applied to the inside of the injection tube 31. The blocking ball 312 blocks the liquid outlet under the pulling force of the first spring 311 to prevent saliva from entering the tube. When the injection tube 31 is inserted into the throat, atomization begins. , it is necessary to pressurize the liquid in the tube, and the blocking ball 312 overcomes the pulling force of the first spring 311 to open the liquid outlet, and the medicine is sprayed out from the annular gap between the liquid outlet and the blocking ball 312. During the spraying of the medicine, under the action of the blocking ball 312, the impact force can be reduced, thereby reducing the impact of the medicine on the throat and reducing the discomfort during the atomization drug administration. The medicine can also be further atomized and diffused, thereby increasing the contact area between the medicine and the throat, improving the atomization effect and efficiency, further reducing the patient's discomfort, and contributing to the smooth progress of the spraying of the medicine, thereby increasing work efficiency; the control device is used to control the speed at which the medical staff inserts the injection tube 31 into the patient's throat, so that the injection tube moves smoothly, reduces fluctuations, further reduces the discomfort caused to the patient, and increases work efficiency.

[0047] By setting the second rack 43, the second gear 44 and the uniform speed component 5, the uniform movement of the injection tube 31 is ensured, and the pain caused to the patient by the fluctuation of the insertion speed is avoided, which affects the smooth spraying of the medicine; specifically, the medical staff operates the moving handle 32, the handle 32 drives the second rack 43 to slide, the second rack 43 drives the second gear 44 to rotate, and the second gear 44 drives the rotating disk 53 to rotate, and when the rotating disk 53 rotates uniformly, the tension spring 54 and the ratchet 52 rotate with the rotation of the rotating disk 53, and the three are in a relatively static state; On the contrary, if the rotating disk 53 suddenly accelerates or decelerates, the pawl 52 will overcome the force of the tension spring 54 under the action of centrifugal force and rotate relatively, so that the pawl 52 engages with the ratchet teeth of the fixed ratchet 51, limiting the rotation of the pawl 52, thereby limiting the rotation of the rotating disk 53, so as to ensure the uniformity of the cannula and reduce the discomfort caused to the patient; the second rack 43 is rotatably connected to the handle 32 through a universal ball, and the medical staff can adjust the direction of the injection tube 31 according to the patient's oral and throat conditions, thereby further increasing work efficiency.

[0048] The supporting device adopts a first gear 28, a first rack 27, a first connecting rod 261, a second connecting rod 262, a connecting tube 26 and a limiting component, which can adjust the distance between the upper braces 21 and the lower braces 22 as needed to adapt to the oral cavity of different patients; and the patient's tongue can be pressed down while the oral cavity is opened, further increasing the work efficiency; specifically, the first gear 28 is rotated, the first gear 28 drives the first rack 27 to slide downward, and the first rack 27 drives the lower braces 22 to slide downward, thereby opening the patient's oral cavity. During the process of opening the upper braces 21 and the lower braces 22, the second connecting rod 262 drives the first connecting rod 261 to rotate in the direction away from the lower braces 22, the first connecting rod 261 drives the connecting tube 26 to rotate, and the connecting tube 26 drives the tongue depressor 25 to rotate downward, thereby pressing the patient's tongue down ; The limiting component adopts a slide tube 63, a second spring 64, and a blocking rod 66. When there is no need to adjust the distance between the upper braces 21 and the lower braces 22, the slide tube 63 slides in the direction away from the first gear 28 under the action of the rebound force of the second spring 64, so that the blocking rod 66 slides into the strip hole 67. The width of the strip hole 67 matches the diameter of the blocking rod 66, which can prevent the slide tube 63 from rotating, thereby limiting the rotation of the first gear 28; when it is necessary to adjust the distance between the upper braces 21 and the lower braces 22, press the slide tube 63 to make the blocking rod 66 slide into the annular hole 65, and rotate the slide tube 63. When the upper braces 21 and the lower braces 22 are adjusted to the desired position, stop pressing the slide tube 63, and the slide tube 63 slides outward under the action of the rebound force of the second spring 64, so that the blocking rod 66 slides into the strip hole 67; the operation is convenient and quick, and the structure is stable.

[0049] The setting of the telescopic part can adjust the height of the connecting frame 19 and the medicine box 33 according to different patients, and has a wide range of applicability; the motor 14 drives the screw rod 13 to rotate, and the screw rod 13 drives the wire seat 15 to slide along the axial direction of the screw rod 13, and the wire seat 15 drives the support tube 12 to slide along the axial direction of the support sleeve 11, thereby adjusting the height; the support sleeve 11 and the support tube 12 are slidably connected through the "convex" shaped slide groove and the slide rail 121, so that the support tube 12 can slide stably along the axial direction of the support sleeve 11.

[0050] The guide member 23 can play a guiding role to prevent the upper braces 21 and the lower braces 22 from shaking during movement, further reducing the discomfort caused to the patient; the arc-shaped baffle 17 and the fixing belt 18 are provided to fix the patient's head to prevent the patient from shaking during the spraying process, which affects the smooth progress of the spraying, and the fixing belt 18 and the arc-shaped baffle 17 are both connected with a soft support pad to further reduce the discomfort caused to the patient.

[0051] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A throat spray for anesthesia that can effectively reduce oral discomfort, characterized in that: The invention comprises an oral support component, an injection device and a control device, wherein the oral support component comprises an upper brace and a lower brace, a retractable support device is connected between the upper brace and the lower brace, and the lower brace is rotatably connected to a tongue depressor; the injection device comprises a base, the base is connected to a retractable member, the retractable member is connected to a medicine box through a connecting frame, a suction pump is arranged inside the medicine box, the medicine box is connected to an injection tube through a bellows, and the injection tube is connected to an atomizing pump; a plurality of liquid outlets are evenly arranged on the side wall of the injection tube, a plurality of first springs are connected to the inner side of the injection tube, the free ends of the plurality of first springs are connected to blocking balls, the plurality of blocking balls are arranged in a one-to-one manner with the plurality of liquid outlets, and a handle is connected to the end of the injection tube away from the liquid outlet; the control device is connected to the handle, and the control device is used to control the speed at which the injection tube moves.

2. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 1, characterized in that: The control device includes a second rack slidably connected to the connecting frame, the second rack is rotatably connected to the handle, the connecting frame is rotatably connected to a second gear, and the second gear is meshed with the second rack; the second gear is coaxially fixedly connected to a uniform speed component, and the uniform speed control component includes a fixed ratchet, a rotating disk, a tension spring and a pawl, the rotating disk is coaxially fixedly connected to the second gear, the fixed ratchet is connected to the connecting frame, the middle part of the pawl is rotatably connected to the rotating disk, the two ends of the tension spring are respectively connected to the rotating disk and one end of the pawl, and the other end of the pawl is matched with the ratchet teeth of the fixed ratchet; the connecting frame is also connected to a protective shell, and the second gear and the second rack are arranged on the inner side of the protective shell.

3. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 2, characterized in that: The second rack is connected with a connecting rod, and the connecting rod is rotatably connected to the handle via a universal ball.

4. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 1, characterized in that: The supporting device includes a mounting shell that is fastened to the upper braces, the mounting shell is slidably connected to a first rack, and the mounting shell is rotatably connected to a first gear that meshes with the first rack; a second connecting rod is connected to the bottom of the mounting shell, the second connecting rod is rotatably connected to the first connecting rod, the first connecting rod is fastened to a connecting tube, the connecting tube is rotatably connected to the lower braces, and the connecting tube is fastened to the tongue depressor; the mounting shell is provided with a limiting component that limits the rotation of the first gear.

5. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 4, characterized in that: The limiting component includes a sliding tube that is slidably connected to the rotating shaft of the first gear, and a second spring is arranged in the sliding tube, one end of the second spring is connected to the sliding tube, the other end of the second spring is connected to the rotating shaft of the first gear, and a blocking rod is connected to the outer wall of the sliding tube; the mounting shell is connected to a fixing sleeve, the inner diameter of the fixing sleeve is adapted to the outer diameter of the sliding tube; the fixing sleeve is provided with annular holes and strip holes that are interconnected, and the widths of the annular holes and strip holes are adapted to the diameter of the blocking rod.

6. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 1, characterized in that: Two groups of guide members are connected between the upper braces and the lower braces. The guide members include a sliding sleeve connected to the upper braces. The sliding sleeve is slidably connected to a sliding rod, and the free end of the sliding rod is connected to the lower braces.

7. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 1, characterized in that: A suction cup is connected to the lower side of the base, two groups of telescopic parts are connected to the upper side of the base, the telescopic ends of the telescopic parts are connected to arc-shaped baffles, the shape of the arc-shaped baffles is adapted to the forehead of the human body, and fixing belts are respectively connected to the two sides of the arc-shaped baffles.

8. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 7, characterized in that: The fixing belt is an elastic belt, and soft support pads are arranged on the inner side of the fixing belt and the arc-shaped baffle, and the free end of the fixing belt is connected with a Velcro.

9. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 8, characterized in that: The telescopic member includes a support sleeve that is tightly connected to the upper side of the base, and a support tube is slidably connected inside the support sleeve; a screw rod is rotatably connected to the base, and a screw rod is slidably connected to a screw seat, and the screw seat is tightly connected to the support tube; the base is provided with a motor that drives the screw rod to rotate.

10. The throat spray for anesthesia that can effectively reduce oral discomfort according to claim 9, characterized in that: The outer wall of the support tube is connected with a slide rail, the inner wall of the support sleeve is provided with a slide groove, the slide rail is slidably connected in the slide groove, and the slide groove and the slide rail are both in a "convex" shape.

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