Anesthetic spraying device

Abstract

An anesthetic spraying device comprises a screening adjusting mechanism, a spraying tank, an ultrasonic generator, a flow guide cover, a screening cover and a particle screening part, the ultrasonic generator, the flow guide cover, the screening cover and the particle screening part are installed in the spraying tank, the screening adjusting mechanism is rotatably installed on the spraying tank, and the screening adjusting mechanism is connected with the particle screening part and used for adjusting the distance between a screening baffle and the ultrasonic generator; the ultrasonic generator is arranged at the bottom of the spray can in a sleeving mode through the flow guide cover, the ultrasonic generator is arranged at the bottom of the spray can through the flow guide cover and used for atomizing anesthetic to form fine anesthetic particles, the screening cover is arranged above the flow guide cover, and a recycling gap is formed between the screening cover and the flow guide cover. The anesthetic is recycled to the position below the ultrasonic generator through the recycling gap, the particle screening part is arranged in the screening cover in a lifting mode, fine anesthetic particles generated by the ultrasonic generator are screened through the particle screening part, and anesthetic aerial fog with the small particles is output out of the screening cover.

Description

Technical Field

[0001] The invention belongs to the technical field of anesthesia devices, and in particular relates to an anesthetic drug spray device. Background Art

[0002] Allowing patients to receive examinations and treatments as painlessly, safely, and comfortably as possible is an important issue that needs to be considered in the diagnosis and treatment of many clinical departments. Whether it is examination and treatment of the throat in the ENT department, bronchoscopy, or endotracheal intubation with preserved breathing to ensure the safety of patients with difficult airways, an anesthetic spray device is required to implement surface anesthesia of the throat. An effective anesthetic spray device is a prerequisite for ensuring effective anesthesia, patient safety, and comfort. Existing anesthetic spray devices all use high-pressure atomizing nozzles to atomize and spray anesthetic drugs. High-pressure nozzles rotate liquid at high speed to form small water droplets. This type of atomization method is unevenly atomized, and the drug is sprayed along the circumference of the nozzle. The sprayed drug is ring-shaped, with no drug in the middle, resulting in uneven spraying of the drug; and the existing spray device cannot adjust the size of the drug particles, and cannot adapt to the spray anesthesia needs of different parts. Summary of the invention

[0003] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide an anesthetic drug spray device, which can change the size of drug atomization particles according to usage requirements, thereby adapting to the spray anesthesia requirements of different parts of the body.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: An anesthetic spray device is used for atomizing and spraying anesthetic drugs, comprising: An ultrasonic generator is used to atomize the anesthetic drug, and a guide cover is arranged on the outside of the ultrasonic generator to guide the atomized anesthetic drug; A screening cover is arranged above the guide cover, a recovery gap is formed between the screening cover and the guide cover, and the anesthetic drug is recovered to the bottom of the ultrasonic generator through the recovery gap, and a spray nozzle is provided on the screening cover; A particle screening member is arranged in a lifting manner in the screening cover, a screening baffle is arranged on the particle screening member, a screening gap is arranged between the screening baffle and the screening cover, and the anesthetic moves to the top of the screening baffle through the screening gap, and the screening baffle is arranged above the ultrasonic generator; A screening adjustment mechanism, connected to the particle screening member, for adjusting the spacing between the screening baffle and the ultrasonic generator; The spray tank is used to install an ultrasonic generator, a screening cover, a particle screening element, and a screening adjustment mechanism. The spray tank is provided with a spray head and a blowing assembly. The spray pipe mouth is plugged into the spray head. The blowing assembly is connected to the spray head and is used to blow air to the outlet of the spray head.

[0005] As a preferred embodiment of the present invention, the screening and adjusting mechanism includes an adjusting end cover rotatably mounted on the spray can, the particle screening element is rotatably connected to the adjusting end cover via a thread, and a guide plate for guiding the lifting and lowering of the particle screening element is provided on the screening cover, and the adjusting end cover and the guide plate cooperate to drive the particle screening element to lift and lower.

[0006] As a preferred solution of the present invention, the adjusting end cover is provided with an adjusting limit block, and the side wall of the spray can is provided with an adjusting limit groove adapted to the adjusting limit block, and the adjusting limit block and the adjusting limit groove cooperate to limit the rotation angle of the adjusting end cover.

[0007] As a preferred solution of the present invention, a mounting limit groove is provided in the spray tank, and the screening cover is installed in the spray tank through the mounting limit groove so that the regulating end cover and the particle screening element can rotate relatively.

[0008] As a preferred solution of the present invention, the screening and adjusting mechanism also includes a flow rate adjusting plate, a flow rate adjusting groove is provided on the adjusting end cover, the flow rate adjusting plate can be adjustably arranged on the flow rate adjusting groove, and the opening area of ​​the flow rate adjusting groove is changed by the flow rate adjusting plate.

[0009] As a preferred solution of the present invention, the particle screening component includes an adjusting column and a spoiler, the adjusting column is connected to the screening adjustment mechanism through a thread, the spoiler and the screening baffle are fixed on the adjusting column, and the spoiler is arranged below the screening baffle.

[0010] As a preferred solution of the present invention, the spoiler and the screening baffle are both arranged at an angle to drip the condensed anesthetic drug onto the top or bottom of the ultrasonic generator.

[0011] As a preferred solution of the present invention, a guide ring is provided on the guide cover, the upper end surface of the guide ring and the upper end surface of the guide cover are both inclined, and a liquid collecting tank is provided on the side wall of the guide cover for guiding the condensed anesthetic liquid to the bottom of the ultrasonic generator.

[0012] As a preferred solution of the present invention, the bottom of the spray tank is conical, and a guide column for guiding the liquid to the bottom of the ultrasonic generator is connected to the middle of the spray tank.

[0013] As a preferred embodiment of the present invention, the bottom inner wall of the spray can is coated with a hydrophobic coating, the bottom of the guide column is coated with a hydrophobic coating, and the top of the guide column is coated with a hydrophilic coating.

[0014] Compared with the prior art, the present invention has the following advantages: (1) the spacing between the particle screening element and the ultrasonic generator is adjusted by the screening adjustment mechanism, thereby screening atomized drugs of different particle sizes and changing the atomized particle size of the drug output from the device, thereby meeting the spray anesthesia requirements of different parts of the body.

[0015] (2) The particle screening element is raised and lowered by means of an external adjustment end cover, thereby improving the adjustment convenience of the particle screening element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the device of the first embodiment.

[0017] Figure 2 It is a cross-sectional view of the device of embodiment 1.

[0018] Figure 3 It is a schematic diagram of the structure after the ultrasonic generator and the deflector are assembled.

[0019] Figure 4 It is a structural schematic diagram of the screening hood.

[0020] Figure 5 It is a schematic diagram of the structure of the particle screening component.

[0021] Figure 6 It is a structural diagram of the screening and regulating mechanism.

[0022] Figure 7 It is a schematic diagram of the structure of a spray can.

[0023] Figure 8 It is a structural schematic diagram of the device of embodiment 2.

[0024] Fig. 9 yes Figure 8 A partial enlarged view of point A in the middle.

[0025] Reference numerals: ultrasonic generator 1, guide cover 2, guide ring 2-1, liquid collecting tank 2-2, screening cover 3, spray nozzle 3-1, guide plate 3-2, reflux section 3-3, connecting section 3-4, mounting section 3-5, shaft tube 3-6, limit block 3-7, particle screening member 4, screening baffle 4-1, adjusting column 4-2, spoiler 4-3, notch 4-4, screening gap 5, screening adjustment mechanism 6, adjusting end cover 6-1, Adjusting limit block 6-2, flow rate adjusting groove 6-3, connecting sleeve 6-4, flow rate adjusting plate 6-5, spray can 7, spray head 7-1, installing limit groove 7-2, guide column 7-3, tank body 7-4, installing through hole 7-5, connecting groove 7-6, spring 7-7, adjusting limit groove 7-8, blowing assembly 8, blowing pipe 8-1, air inlet pipe 8-2, connecting pipe 8-3, piston 8-4, recovery gap 9, guide pipe 10. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Embodiment 1

[0028] like Figure 1-Figure 2 As shown, Figure 1 It is a structural schematic diagram of the device of Embodiment 1; Figure 2 It is a cross-sectional view of a device of the first embodiment; specifically, an anesthetic spray device for atomizing and spraying anesthetics, comprising: an ultrasonic generator 1, a flow guide 2, a screening cover 3, a particle screening member 4, a screening adjustment mechanism 6 and a spray tank 7, wherein the ultrasonic generator 1, the flow guide 2, the screening cover 3, and the particle screening member 4 are respectively arranged in the spray tank 7, the screening adjustment mechanism 6 is rotatably mounted on the spray tank 7, and the screening adjustment mechanism 6 is connected to the particle screening member 4 to adjust the spacing between the screening baffle 4-1 and the ultrasonic generator 1; the flow guide 2 It is sleeved on the outside of the ultrasonic generator 1, and the ultrasonic generator 1 is arranged at the bottom of the spray tank 7 through the guide cover 2, so as to atomize the anesthetic drug to form fine anesthetic drug particles; the screening cover 3 is arranged above the guide cover 2, and a recovery gap 9 is formed between the screening cover 3 and the guide cover 2, and the anesthetic drug is recovered to the bottom of the ultrasonic generator 1 through the recovery gap 9; the particle screening element 4 can be arranged in the screening cover 3 in a lifting manner, and the fine anesthetic drug particles generated by the ultrasonic generator 1 are screened by the particle screening element 4, so that the anesthetic drug aerosol with smaller particles is output outside the screening cover 3.

[0029] like Figure 7 As shown, Figure 7 It is a schematic diagram of the structure of a spray can; specifically, the spray can 7 includes a tank body 7-4 and a spray head 7-1. The tank body 7-4 is provided with a mounting through hole 7-5. The spray head 7-1 is slidably mounted in the mounting through hole 7-5. A connecting end face is provided on the inner end face of the spray head 7-1. A spring 7-7 is provided between the connecting end face and the inner wall of the tank body 7-4 for driving the spray head 7-1 to move toward the tank body 7-4. A connecting groove 7-6 is provided on the connecting end face. The connecting groove 7-6 is used to connect with the screening cover 3. An installation limit groove 7-2 is also provided on the inner wall of the tank body 7-4. The installation limit groove 7-2 and the connecting groove 7-6 are located on the same diameter line of the tank body 7-4. The screening cover 3 is fixed by the installation limit groove 7-2 and the connecting groove 7-.

[0030] The bottom of the tank body 7-4 is conically arranged, and a guide column 7-3 is arranged in the middle of the spray tank 7. The guide column 7-3 is used to guide the liquid to the bottom of the ultrasonic generator 1. Preferably, there is a distance of 0.5-1 mm between the top surface of the guide column 7-3 and the ultrasonic generator 1. A hydrophobic coating is coated on the inner wall of the bottom of the tank body 7-4, a hydrophobic coating is coated on the bottom of the guide column 7-3, and a hydrophilic coating is coated on the top of the guide column 7-3, so as to guide the liquid anesthetic drug to the top of the guide column 7-3, thereby atomizing the liquid drug through the ultrasonic generator 1.

[0031] like Figure 4 As shown, Figure 4 : is a schematic diagram of the structure of the screening cover; specifically, the screening cover 3 includes a reflux section 3-3, a connecting section 3-4 and a mounting section 3-5, a spray nozzle 3-1 and an axle tube 3-6 are provided on the circumferential side wall of the mounting section 3-5, the spray nozzle 3-1 is engaged with the connecting groove 7-6, and under the action of the spring 7-7, the spray nozzle 3-1 is abutted against the spray head 7-1, the axle tube 3-6 is engaged with the installation limit groove 7-2, the screening cover 3 is engaged with the spray tank 7, and the screening cover 3 and the spray tank 7 are prevented from rotating relative to each other. In this embodiment, the installation limit groove 7-2 and the connecting groove 7-6 are both groove-shaped structures with top openings, so that the screening cover 3 can be installed on the tank body 7-4 from top to bottom.

[0032] like Figure 2-Figure 3 As shown, Figure 2 is a cross-sectional view of a device of Embodiment 1; Figure 3 It is a schematic diagram of the structure after the ultrasonic generator and the guide cover are assembled; specifically, the guide cover 2 is provided with a guide ring 2-1, and the return section 3-3 is sleeved outside the guide ring 2-1, and a recovery gap 9 is formed between the return section 3-3 and the guide ring 2-1, so that the atomized drug liquid condensed in the screening cover 3 drips along the return section 3-3 to the upper end surface of the guide cover 2. In order to facilitate the diversion of the condensed anesthetic drug liquid to the bottom of the ultrasonic generator 1, the upper end surface of the guide ring 2-1 and the upper end surface of the guide cover 2 are both inclined, and a liquid collecting groove 2-2 is provided on the edge side wall of the guide cover 2, so that the drug flows to the bottom of the ultrasonic generator 1 through the liquid collecting groove 2-2. Preferably, the side wall of the guide cover 2 is coated with a hydrophobic coating.

[0033] like Figure 5 As shown, Figure 5It is a structural schematic diagram of a particle screening component; specifically, the particle screening component 4 includes a screening baffle 4-1, an adjustment column 4-2, and a spoiler 4-3. The adjustment column 4-2 is connected to the screening adjustment mechanism 6 by a thread, and the spoiler 4-3 and the screening baffle 4-1 are fixed on the adjustment column 4-2. The spoiler 4-3 is arranged below the screening baffle 4-1. The spoiler 4-3 and the screening baffle 4-1 are both located above the ultrasonic generator 1. When the ultrasonic generator 1 atomizes the anesthetic drug, the spoiler 4-3 is used to disturb the flow, and the screening baffle 4-1 is used to increase the distance that the atomized drug needs to move to flow out of the screening cover 3, thereby further recovering the large particles of the atomized drug to the ultrasonic generator 1 and reducing the particle size of the atomized drug output from the screening cover 3.

[0034] like Figure 5 As shown, the spoiler 4-3 and the screening baffle 4-1 are both arranged at an angle to drip the condensed anesthetic drugs onto the top or bottom of the ultrasonic generator 1; as a preferred embodiment, the radius of the spoiler 4-3 and the screening baffle 4-1 is greater than the radius of the guide ring 2-1, so that the condensed anesthetic drugs can fall to the upper end surface of the guide cover 2 through the recovery gap 9, and the condensed anesthetic drugs can flow into the collecting tank 2-2 along the upper end surface of the guide cover 2, and then flow from the collecting tank 2-2 to the bottom of the ultrasonic generator 1, thereby reducing the condensed anesthetic drugs from dripping onto the top of the ultrasonic generator 1, and reducing the influence of the condensed anesthetic drugs on the atomization effect of the ultrasonic generator 1.

[0035] When the ultrasonic generator 1 atomizes the anesthetic drug, the atomized drug has a certain kinetic energy, which drives part of the air around the atomized drug to flow. When the air flows to the spoiler 4-3, the spoiler 4-3 will disturb the gas, so that the gas generates a certain vortex between the ultrasonic generator 1 and the spoiler 4-3. The atomized drug with smaller particles flows to the top of the spoiler 4-3 under the action of the vortex, and then moves to the top of the screening baffle 4-1 through the screening gap 5. The atomized drug with larger particles has a larger inertia and a larger moving distance, so that most of them will adhere to the spoiler 4-3 until they drip; the large-particle atomized drug that is not attached to the spoiler 4-3 condenses with other atomized drug particles after passing through the spoiler 4-3, and falls to the recovery gap 9 or above the ultrasonic generator 1 under the action of its own weight.

[0036] like Figure 2As shown, a screening gap 5 is provided between the screening baffle 4-1 and the screening cover 3, and the atomized anesthetic moves to the top of the screening baffle 4-1 through the screening gap 5, so that the atomized anesthetic is output outside the screening cover 3. As a preferred embodiment, a notch 4-4 is provided on one side of the screening baffle 4-1, and the notch 4-4 is located on the side away from the spray nozzle 3-1. The screening gap 5 is formed between the notch 4-4 and the inner wall of the screening cover 3. When the atomized anesthetic moves to the spray nozzle 3-1 through the notch, the anesthetic with larger particles will condense and then fall into the screening cover 3, thereby further reducing the particle size of the anesthetic output from the screening cover 3.

[0037] like Figure 6 , Figure 8 and Fig. 9 As shown, Figure 6 It is a structural diagram of the screening and regulating mechanism. Figure 8 It is a structural schematic diagram of the device of embodiment 2; Fig. 9 yes Figure 8 A partial enlarged view of point A in the middle; specifically, the screening adjustment mechanism 6 includes an adjustment end cover 6-1 rotatably mounted on the spray can 7, the adjustment column 4-2 is rotatably connected to the adjustment end cover 6-1 through a thread, and a guide plate 3-2 is provided on the inner wall of the reflux section 3-3, the guide plate 3-2 abuts against the notch 4-4, restricting the screening baffle 4-1 and the screening cover 3 from rotating relative to each other, and since the screening cover 3 and the spray can 7 cannot rotate relative to each other, the screening baffle 4-1 and the spray can 7 cannot rotate relative to each other, when the adjustment end cover 6-1 rotates relative to the spray can 7, the adjustment column 4-2 and the adjustment end cover 6-1 rotate relative to each other, so that under the action of the thread, the particle screening member 4 is lifted and lowered along the guide plate 3-2.

[0038] When the distance between the particle screening element 4 and the ultrasonic generator 1 decreases, the amount of movement required for the atomized drug to condense on the spoiler 4-3 is smaller, so that most of the atomized drug condenses on the spoiler 4-3, and the atomized drug with finer particles flows to the top of the spoiler 4-3, and then passes through the screening gap 5 and the spray nozzle 3-1 in turn to output the screening cover 3. The efficiency of drug output of this device is low, and the time required for anesthesia is appropriately increased; when the distance between the particle screening element 4 and the ultrasonic generator 1 increases, the amount of movement required for the atomized drug to condense on the spoiler 4-3 increases, so that more atomized drug moves to the top of the spoiler 4-3, thereby increasing the drug particles output from the screening cover 3, improving the efficiency of drug output of this device, and appropriately reducing the time required for anesthesia.

[0039] like Figure 6 and Figure 7As shown, in order to limit the lifting and lowering adjustment amount of the particle screening component 4, an adjusting limit block 6-2 is provided on the side wall of the adjusting end cover 6-1, and an adjusting limit groove 7-8 is provided on the inner wall of the spray can 7. The adjusting limit block 6-2 is slidably connected with the adjusting limit groove 7-8. The adjusting limit block 6-2 and the adjusting limit groove 7-8 cooperate to limit the rotation angle of the adjusting end cover 6-1, thereby controlling the lifting and lowering amount of the particle screening component 4 within a certain range.

[0040] like Figure 8 and Fig. 9 As shown, the screening and adjusting mechanism 6 also includes a flow rate adjusting plate 6-5, which is a baffle. A flow rate adjusting groove 6-3 is provided on the adjusting end cover 6-1. The flow rate adjusting plate 6-5 can be adjusted and arranged on the flow rate adjusting groove 6-3, and the opening area of ​​the flow rate adjusting groove 6-3 is changed by the flow rate adjusting plate 6-5.

[0041] In this embodiment, the flow rate adjustment plate 6-5 is rotatably connected to the adjustment end cover 6-1 through the connecting sleeve 6-4, and the flow rate adjustment plate 6-5 is located above the adjustment end cover 6-1. The opening area of ​​the flow rate adjustment slot 6-3 is changed by manually turning the flow rate adjustment plate 6-5.

[0042] like Figure 2 As shown, a blowing assembly 8 is provided on the outside of the spray can 7, and the spray pipe mouth 3-1 is inserted into the spray head 7-1. The blowing assembly 8 is connected to the spray head 7-1 and is used to blow air to the outlet of the spray head 7-1, thereby reducing the pressure at the spray head 7-1. Under the action of atmospheric pressure, air flows into the screening cover 3 through the flow rate regulating groove 6-3, thereby accelerating the spraying of the atomized medicine in the screening cover 3 through the spray head 7-1. In the process of changing the opening area of ​​the flow rate regulating groove 6-3 through the flow rate regulating plate 6-5, when the opening area of ​​the flow rate regulating groove 6-3 increases, the air entering the screening cover 3 increases, thereby improving the spraying efficiency of the atomized medicine in the screening cover 3 through the spray head 7-1, and when the opening area of ​​the flow rate regulating groove 6-3 decreases, the air entering the screening cover 3 decreases, thereby reducing the spraying efficiency of the atomized medicine in the screening cover 3 through the spray head 7-1.

[0043] like Figure 7As shown, in this embodiment, the blowing assembly 8 includes a blowing pipe 8-1, an air intake pipe 8-2 and a connecting pipe 8-3. The blowing pipe 8-1 and the air intake pipe 8-2 are respectively connected to the outside of the spray can 7. The blowing pipe 8-1 and the air intake pipe 8-2 are connected through the connecting pipe 8-3. The blowing pipe 8-1 is sleeved on the outside of the spray head 7-1, and the blowing pipe 8-1 and the spray head 7-1 are coaxially arranged to prevent the blowing pipe 8-1 from changing the flow direction of the atomized drug output from the spray head 7-1. A piston 8-4 is installed in the air intake pipe 8-2, and the blowing of the blowing pipe 8-1 is achieved by driving the piston 8-4 to slide. Preferably, the air intake pipe 8-2 can be directly connected to an external blowing device (such as a blower, an air pump) to replace the piston 8-4 to achieve blowing of the blowing pipe 8-1.

[0044] A guide tube 10 is rotatably mounted on the insufflation tube 8-1 for guiding the atomized medicine to the site where anesthesia is required.

[0045] Embodiment 2

[0046] This embodiment improves the adjustment method of the flow rate adjustment plate 6-5 in the first embodiment. In this embodiment, the flow rate adjustment plate 6-5 is rotatably installed below the adjustment end cover 6-1, and a limit block 3-7 is provided in the screening cover 3. The limit block 3-7 abuts against the flow rate adjustment plate 6-5, so that the flow rate adjustment plate 6-5 and the spray can 7 are relatively fixed. When the adjustment end cover 6-1 rotates relative to the spray can 7, the flow rate adjustment plate 6-5 adjusts the opening area of ​​the flow rate adjustment slot 6-3.

[0047] As a preferred embodiment, when the distance between the particle screening element 4 and the ultrasonic generator 1 is increased by rotating the adjusting end cover 6-1, the flow rate adjusting plate 6-5 reduces the opening area of ​​the flow rate adjusting slot 6-3, thereby appropriately reducing the efficiency of the coarse particle drug output of the device and reducing the stimulation of the coarse particle drug to the patient; when the distance between the particle screening element 4 and the ultrasonic generator 1 is reduced by rotating the adjusting end cover 6-1, the flow rate adjusting plate 6-5 increases the opening area of ​​the flow rate adjusting slot 6-3, thereby appropriately improving the efficiency of the refined anesthetic drug output of the device and improving the anesthesia efficiency.

[0048] The rest of the structure is consistent with that of the first embodiment.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0050] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. An anesthetic spray device, used for atomizing and spraying anesthetics, characterized in that: include: An ultrasonic generator (1) is used to atomize an anesthetic drug, and a flow guide cover (2) is arranged on the outside of the ultrasonic generator (1) for guiding the atomized anesthetic drug; A screening cover (3) is arranged above the flow guide cover (2), a recovery gap (9) is formed between the screening cover (3) and the flow guide cover (2), and the anesthetic drug is recovered to the bottom of the ultrasonic generator (1) through the recovery gap (9), and a spray nozzle (3-1) is provided on the screening cover (3); A particle screening member (4) is arranged in a liftable manner in the screening cover (3), a screening baffle (4-1) is provided on the particle screening member (4), a screening gap (5) is provided between the screening baffle (4-1) and the screening cover (3), and an anesthetic moves to above the screening baffle (4-1) through the screening gap (5), and the screening baffle (4-1) is arranged above the ultrasonic generator (1); A screening adjustment mechanism (6) connected to the particle screening element (4) and used for adjusting the distance between the screening baffle (4-1) and the ultrasonic generator (1); A spray tank (7) is used to install an ultrasonic generator (1), a screening cover (3), a particle screening element (4), and a screening adjustment mechanism (6). The spray tank (7) is provided with a spray head (7-1) and a blowing assembly (8). The spray pipe mouth (3-1) is plugged into the spray head (7-1). The blowing assembly (8) is connected to the spray head (7-1) and is used to blow air to the outlet of the spray head (7-1).

2. An anesthetic spray device according to claim 1, characterized in that: The screening adjustment mechanism (6) comprises an adjustment end cover (6-1) rotatably mounted on the spray can (7); the particle screening member (4) is rotatably connected to the adjustment end cover (6-1) via a thread; a guide plate (3-2) for guiding the particle screening member (4) to be raised or lowered is provided on the screening cover (3); the adjustment end cover (6-1) and the guide plate (3-2) cooperate to drive the particle screening member (4) to be raised or lowered.

3. An anesthetic spray device according to claim 2, characterized in that: The adjusting end cover (6-1) is provided with an adjusting limit block (6-2), and the side wall of the spray can (7) is provided with an adjusting limit groove (7-8) adapted to the adjusting limit block (6-2), so that the rotation angle of the adjusting end cover (6-1) is limited by the cooperation of the adjusting limit block (6-2) and the adjusting limit groove (7-8).

4. The anesthetic spray device according to claim 2, characterized in that: The spray can (7) is provided with a mounting limit groove (7-2), and the screening cover (3) is installed in the spray can (7) through the mounting limit groove (7-2), so that the regulating end cover (6-1) and the particle screening element (4) can rotate relative to each other.

5. The anesthetic spray device according to claim 2, characterized in that: The screening and adjusting mechanism (6) further comprises a flow rate adjusting plate (6-5); a flow rate adjusting groove (6-3) is provided on the adjusting end cover (6-1); the flow rate adjusting plate (6-5) is adjustable and arranged on the flow rate adjusting groove (6-3); and the opening area of ​​the flow rate adjusting groove (6-3) is changed by the flow rate adjusting plate (6-5).

6. The anesthetic spray device according to claim 1, characterized in that: The particle screening element (4) comprises an adjustment column (4-2) and a spoiler (4-3); the adjustment column (4-2) is connected to a screening adjustment mechanism (6) via a thread; the spoiler (4-3) and a screening baffle (4-1) are fixed on the adjustment column (4-2); and the spoiler (4-3) is arranged below the screening baffle (4-1).

7. An anesthetic spray device according to claim 6, characterized in that: The spoiler (4-3) and the screening baffle (4-1) are both arranged at an angle so as to allow the condensed anesthetic to drip onto the top or bottom of the ultrasonic generator (1).

8. The anesthetic spray device according to claim 1, characterized in that: The guide cover (2) is provided with a guide ring (2-1), the upper end surface of the guide ring (2-1) and the upper end surface of the guide cover (2) are both arranged at an inclination, and a liquid collecting tank (2-2) for guiding the condensed anesthetic liquid to the bottom of the ultrasonic generator (1) is provided on the side wall of the guide cover (2).

9. The anesthetic spray device according to claim 1, characterized in that: The bottom of the spray tank (7) is arranged in a conical shape, and a guide column (7-3) for guiding liquid to the bottom of the ultrasonic generator (1) is connected to the middle of the spray tank (7).

10. The anesthetic spray device according to claim 9, characterized in that: The inner wall of the bottom of the spray can (7) is coated with a hydrophobic coating, the bottom of the guide column (7-3) is coated with a hydrophobic coating, and the top of the guide column (7-3) is coated with a hydrophilic coating.

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