Atomization administration device for airway management of critical patient

Abstract

The invention relates to the technical field of atomizers, in particular to a critical patient airway management atomization dosing device which comprises an atomizer, a conveying pipe is arranged on the outer surface of the atomizer, an atomization pipe is fixedly connected to the end, away from the atomizer, of the conveying pipe, and a mask is arranged at the end of the atomization pipe. A self-adjusting assembly is arranged on the upper portion of the atomization pipe, a warning assembly is arranged on the lower portion of the atomization pipe, and a switching assembly is arranged at the joint of the atomization pipe and the mask. Compared with the prior art, the self-adjusting assembly is arranged, in the breathing process of a patient, the pressure intensity change caused by breathing serves as driving force to drive the center rod and the fan plate to rotate, medicine mist can enter the mask in a staged mode conveniently, release of the medicine mist can be automatically matched with the breathing frequency of the patient, and the adaptability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nebulizers, and in particular to an atomizing drug delivery device for airway management of critically ill patients. Background Art

[0002] Critically ill patients refer to those who suffer from diseases to a certain degree of danger. When treating such patients, since it is inconvenient for them to take medicine on their own, a nebulizer drug delivery device is needed to atomize the drug liquid into drug mist, and deliver the drug mist while the patient breathes. The atomized drug particles can directly enter the deep respiratory tract, be quickly absorbed, and take effect quickly.

[0003] In the prior art, a Chinese patent document with publication number CN119075099A proposes a respiratory atomization drug delivery device, which includes a nebulizer body, an upper opening end of the nebulizer body is fixedly connected to a cover plate, an upper end of the cover plate is fixedly connected to a drug outlet pipe connected to the inside of the nebulizer body, an end of the drug outlet pipe away from the nebulizer body is fixedly connected to a semi-soft mask, a lower end of the nebulizer body is fixedly connected to an air inlet pipe, an end of the air inlet pipe away from the nebulizer body is fixedly connected to an air outlet end of an air pump, and an air inlet end of the air pump is connected to a compressed air supply device. The outer end of the semi-soft mask is fixedly connected with an elastic strap, and a mounting shell is fixedly connected to the elastic strap. The end of the drug outlet tube is fixedly extended to the inner side of the semi-soft mask and is fixedly connected with a catheter. By adding a catheter inside the mask, a double layer of protection is provided for drug spillage, so that the spilled drug can be absorbed for the second time. The elastic strap with a tension sensor is provided to effectively monitor the patient's atomization treatment process, and can promptly reflect whether the patient has moved the semi-soft mask or catheter without authorization. However, this solution still has the following shortcomings in actual use:

[0004] The drug atomization rate and drug dosage of the nebulizer drug delivery device can be controlled, but can only be set at a fixed value each time, and the patient's breathing is not necessarily uniform, which results in the device not being able to automatically adapt and adjust according to the patient's breathing frequency when the patient breathes the drug, and requires manual operation and adjustment, which is inconvenient. The present application provides a nebulizer drug delivery device for airway management of critically ill patients to meet the needs of adaptively adjusting the amount of drug discharged during the patient's breathing process. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose an atomization drug delivery device for airway management of critically ill patients, so as to solve the problem that it is inconvenient for patients to adaptively adjust the drug discharge volume during breathing.

[0006] For the above purposes, the present invention provides an atomization drug delivery device for airway management of critically ill patients, including an atomizer. A delivery pipe is arranged on the outer surface of the atomizer. One end of the delivery pipe away from the atomizer is fixedly connected to an atomization pipe. A mask is arranged at the end of the atomization pipe. An automatic adjustment component is arranged on the upper part of the atomization pipe. A warning component is arranged on the lower part of the atomization pipe. A switching component is arranged at the connection between the atomization pipe and the mask.

[0007] The automatic adjustment component communicates with the outer surface of the mask. The warning component is linked with the automatic adjustment component and can give a warning for abnormal states during the automatic adjustment process. The switching component is used to switch the air inlet and outlet modes of the mask.

[0008] Preferably, the automatic adjustment component includes a hollow pipe fixedly connected to the outer surface of the mask. A lightweight piston is slidably connected inside the hollow pipe. A rack is fixedly connected to the side of the lightweight piston away from the mask. A central rod is movably inserted through the middle of the upper surface of the atomization pipe. The top of the central rod penetrates the bottom of the hollow pipe. A gear is fixedly connected to the top of the central rod. The gear is meshed with the rack.

[0009] Preferably, fan plates are annularly and matrix-distributed on the outer surface of the part of the central rod extending into the atomization pipe. The included angle of each fan plate is 60 degrees. A chute is opened on the inner wall of the side of the hollow pipe. The side of the slider is slidably limited inside the chute.

[0010] Preferably, the warning component includes a bottom box fixedly connected to the bottom of the atomization pipe. The central rod penetrates the bottom of the atomization pipe and extends into the bottom box. Hollow plates are annularly and matrix-distributed on the outer surface of the part of the central rod extending into the bottom box. A slide plate is slidably limited inside the hollow plate. One end of the slide plate extending out of the hollow plate is fixedly connected to a collision block.

[0011] Preferably, an elastic cord is arranged inside the hollow plate. One end of the elastic cord is fixedly connected to the inner wall of the hollow plate, and the other end is fixedly connected to the side of the slide plate.

[0012] Preferably, sounding rods are arranged around the inner wall of the bottom box. The sounding rods are distributed in a cross shape. A gap is left between the sounding rods and the collision block.

[0013] Preferably, a delivery channel is opened at the end of the atomization pipe. An atomization channel is opened at one end of the mask close to the atomization pipe. A breathing channel is opened at the symmetric position of the atomization channel. The atomization channel corresponds to the delivery channel in position. A restraint strap is arranged on the side of the mask.

[0014] Preferably, the switching component includes a circular ring fixedly connected between the atomizing tube and the face mask. A semi-circular block is rotatably connected inside the circular ring. The two ends of the axis of the semi-circular block are respectively rotatably connected to the atomizing tube and the face mask. A slider is fixedly connected to the outer surface of the semi-circular block. The end of the slider is rotatably connected to a knob. A side groove is formed on the side of the circular ring, and the included angle of the side groove is ninety degrees. The slider slides inside the side groove.

[0015] Preferably, a shaft rod is movably inserted through the top end of the slider. One end of the shaft rod extending into the slider is fixedly connected with an elliptical block. A positioning rod is movably inserted through the side of the slider. The outer surface of the elliptical block abuts against the part of the positioning rod extending into the slider. A spring is arranged on the adjacent side of the positioning rod.

[0016] Preferably, a torsion spring is sleeved on the outer surface of the part of the shaft rod extending into the knob. A positioning hole is formed on the inner wall of the side groove. The positioning rod is movably clamped inside the positioning hole.

[0017] Advantages of the present invention:

[0018] 1. For the atomizing drug delivery device for airway management of critically ill patients, by setting the self-adjusting component, during the breathing process of the patient, using the pressure change brought by breathing as the driving force to drive the central rod and the fan plate to rotate, facilitating the phased entry of the medicine mist into the face mask, enabling the release of the medicine mist to automatically match the breathing frequency of the patient, and improving the adaptability of the device.

[0019] 2. For the atomizing drug delivery device for airway management of critically ill patients, by setting the warning component, when the breathing amplitude of the patient changes, the central rod is driven to rotate rapidly in a short time. Under the action of centrifugal force, the collision block collides with the sounding rod, generating a certain sound to warn the medical staff, facilitating the medical staff to understand the abnormal breathing condition of the patient in the first time.

[0020] 3. For the atomizing drug delivery device for airway management of critically ill patients, by setting the switching component, driving the semi-circular block to rotate by turning the knob and pushing the slider to slide, thereby controlling the opening and closing switching of the atomizing channel and the breathing channel, and realizing the free switching of the medicine mist and air without removing the face mask, demonstrating the practicability of the device. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1Schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 Schematic diagram of the connection structure between the atomizing tube and the mask of the present invention;

[0024] Figure 3 Schematic diagram of the partial sectional structure of the present invention;

[0025] Figure 4 Schematic diagram of the internal structure of the bottom box of the present invention;

[0026] Figure 5 Schematic diagram of the hollow plate structure of the present invention;

[0027] Figure 6 Schematic diagram of the first perspective structure of the switching component of the present invention;

[0028] Figure 7 Schematic diagram of the second perspective structure of the switching component of the present invention.

[0029] The markings in the figure are:

[0030] 1. Atomizer; 2. Delivery pipe; 3. Atomizing tube; 301. Delivery channel; 4. Mask; 401. Atomizing channel; 402. Breathing channel; 5. Self-adjusting component; 501. Hollow tube; 502. Light piston; 503. Rack; 504. Central rod; 505. Gear; 506. Fan plate; 507. Slide groove; 6. Warning component; 601. Bottom box; 602. Hollow plate; 603. Slide plate; 604. Collision block; 605. Elastic cord; 606. Sounding rod; 7. Switching component; 701. Ring; 702. Semi-circular block; 703. Slide block; 704. Knob; 705. Side groove; 706. Shaft rod; 707. Torsion spring; 708. Oval block; 709. Positioning rod; 710. Spring; 711. Positioning hole; 8. Restraining strap. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0032] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0033] As Figures 1 to 7 shown, the atomization drug delivery device for airway management of critically ill patients includes an atomizer 1. A delivery tube 2 is provided on the outer surface of the atomizer 1. One end of the delivery tube 2 away from the atomizer 1 is fixedly connected to an atomization tube 3. A mask 4 is provided at the end of the atomization tube 3. A self-adjusting component 5 is provided on the upper part of the atomization tube 3. A warning component 6 is provided on the lower part of the atomization tube 3. A switching component 7 is provided at the connection between the atomization tube 3 and the mask 4. A delivery channel 301 is opened at the end of the atomization tube 3. An atomization channel 401 is opened at one end of the mask 4 close to the atomization tube 3. A breathing channel 402 is opened at the symmetric position of the atomization channel 401. The atomization channel 401 corresponds to the delivery channel 301 in position. A restraint strap 8 is provided on the side of the mask 4. The mask 4 is worn on the patient's mouth and nose by using the restraint strap 8. The liquid medicine is atomized by the atomizer 1, transported to the atomization tube 3 through the delivery tube 2, and then enters the mask 4 through the delivery channel 301 and the atomization channel 401 for the patient to breathe. The specific structure and working principle of the atomizer 1 are well-known prior arts to those skilled in the art and will not be elaborated here in detail;

[0034] The self-adjusting component 5 communicates with the outer surface of the mask 4. The warning component 6 is linked with the self-adjusting component 5 and can warn of abnormal states during the self-adjusting process. The switching component 7 is used to switch the air inlet and outlet modes of the mask 4;

[0035] During the patient's breathing process, the self-adjusting component 5 can automatically match the patient's breathing frequency to achieve the effect of adaptively delivering the medicine mist. At the same time, the warning component 6 can monitor the patient's breathing abnormalities, which is convenient for medical staff to understand in the first time. In addition, through the switching component 7, the free switching of the medicine mist and air can be realized without the patient removing the mask 4, demonstrating the practicability of the device.

[0036] As Figure 2 and Figure 3As shown in the figure, the self-adjusting component 5 includes a hollow tube 501 fixedly connected to the outer surface of the face mask 4. A lightweight piston 502 is slidably connected inside the hollow tube 501. A rack 503 is fixedly connected to the side of the lightweight piston 502 away from the face mask 4. A central rod 504 is movably inserted through the middle of the upper surface of the atomizing tube 3. The top of the central rod 504 penetrates the bottom of the hollow tube 501. A gear 505 is fixedly connected to the top of the central rod 504. The gear 505 is meshed with the rack 503. Fan plates 506 are annularly and matrix-distributed on the outer surface of the part of the central rod 504 extending into the atomizing tube 3. The included angle of each fan plate 506 is 60 degrees. A chute 507 is formed on the inner side wall of the hollow tube 501. The side of the slider 703 is slidably limited inside the chute 507;

[0037] When the patient inhales, the pressure inside the face mask 4 decreases, which causes the lightweight piston 502 to move along the chute 507 towards the face mask 4. The rack 503 moves accordingly and drives the gear 505 to rotate. During the rotation of the gear 505, the central rod 504 will be driven to rotate synchronously. Then the rotation of the fan plates 506 can indirectly open and close the atomizing tube 3, so that the medicinal mist can enter the face mask 4 stage by stage. Similarly, when the patient exhales, the release of the medicinal mist can automatically match the breathing frequency of the patient, improving the adaptability of the device.

[0038] As Figure 2 、 Figure 4 and Figure 5 shown in the figure, the warning component 6 includes a bottom box 601 fixedly connected to the bottom of the atomizing tube 3. The central rod 504 penetrates the bottom of the atomizing tube 3 and extends into the bottom box 601. Hollow plates 602 are annularly and matrix-distributed on the outer surface of the part of the central rod 504 extending into the bottom box 601. A sliding plate 603 is slidably limited inside the hollow plate 602. One end of the sliding plate 603 extending out of the hollow plate 602 is fixedly connected with a collision block 604. An elastic cord 605 is arranged inside the hollow plate 602. One end of the elastic cord 605 is fixedly connected to the inner wall of the hollow plate 602, and the other end is fixedly connected to the side of the sliding plate 603. Sound-emitting rods 606 are arranged around the inner wall of the bottom box 601. The sound-emitting rods 606 are distributed in a cross shape. There is a gap between the sound-emitting rods 606 and the collision block 604;

[0039] When the breathing amplitude of the patient changes greatly, the moving speed of the lightweight piston 502 increases, which will drive the rotation speed of the central rod 504 to increase. Thus, the hollow halves around the central rod 504 will increase in speed during the rotation. Under the action of centrifugal force, the collision block 604 will move away from the central rod 504, and then will pull the slider 703 to slide and stretch the elastic cord 605. Since the position of the collision block 604 changes, it will collide with the sound-emitting rod 606 during the rotation around the central rod 504, thus generating a certain sound to warn the medical staff, facilitating the medical staff to understand the abnormal breathing situation of the patient in the first time.

[0040] As Figure 3 , Figure 6 and Figure 7 shown, the switching component 7 includes a circular ring 701 fixedly connected between the atomizing tube 3 and the face mask 4. A semi-circular block 702 is rotatably connected inside the circular ring 701. The two ends of the axis of the semi-circular block 702 are respectively rotatably connected to the atomizing tube 3 and the face mask 4. A slider 703 is fixedly connected to the outer surface of the semi-circular block 702. A knob 704 is rotatably connected to the end of the slider 703. A side groove 705 is formed on the side of the circular ring 701, and the included angle of the side groove 705 is ninety degrees. The slider 703 slides inside the side groove 705. A shaft rod 706 is movably inserted through the top end of the slider 703. One end of the shaft rod 706 extending into the slider 703 is fixedly connected with an elliptical block 708. A positioning rod 709 is movably inserted through the side of the slider 703. The outer surface of the elliptical block 708 abuts against the part of the positioning rod 709 extending into the slider 703. A spring 710 is arranged on the adjacent side of the positioning rod 709. A torsion spring 707 is sleeved on the outer surface of the part of the shaft rod 706 extending into the knob 704. A positioning hole 711 is formed on the inner wall of the side groove 705, and the positioning rod 709 is movably clamped inside the positioning hole 711;

[0041] Rotating the knob 704 drives the shaft rod 706 to rotate while compressing the torsion spring 707. During the rotation of the shaft rod 706, the elliptical block 708 is driven to rotate. As a result, the elliptical block 708 loses the limiting effect on the positioning rod 709. Under the action of the resilience of the spring 710, the positioning rod 709 will retract into the slider 703 and thus slide out of the positioning hole 711. At this time, pushing the slider 703 without limitation slides inside the side groove 705 until it aligns with another positioning hole 711. Releasing the knob 704, under the action of the resilience of the torsion spring 707, the shaft rod 706 will be driven to rotate in the reverse direction, so that the elliptical block 708 pushes the positioning rod 709 to slide out of the slider 703 and snap into the positioning hole 711 at this position to achieve locking. The sliding of the slider 703 will drive the semi-circular block 702 to rotate synchronously, so that the semi-circular block 702 closes the atomizing channel 401 and the conveying channel 301, and the breathing channel 402 is opened. At this time, the patient can breathe air smoothly, and the free switching of the medicine mist and air can be realized without removing the face mask 4, demonstrating the practicability of the device.

[0042] In the technical solution provided by the present invention, during the use of the device, the mask 4 is worn on the mouth and nose of the patient by the restraint belt 8. The liquid medicine is atomized by the atomizer 1, transported to the atomization tube 3 through the delivery tube 2, and then enters the mask 4 through the delivery channel 301 and the atomization channel 401 for the patient to breathe. During the patient's breathing process, the patient's inhalation will cause the pressure inside the mask 4 to decrease, causing the light piston 502 to move along the chute 507 towards the mask 4. The rack 503 will move accordingly and drive the gear 505 to rotate. During the rotation of the gear 505, the central rod 504 will be driven to rotate synchronously. Furthermore, the rotation of the fan plate 506 can indirectly open and close the atomization tube 3, so that the medicine mist can enter the mask 4 in stages. Similarly, when the patient exhales, the release of the medicine mist can automatically match the patient's breathing frequency, improving the adaptability of the device. In addition, when the patient's breathing amplitude changes greatly, the moving speed of the light piston 502 will increase, which will drive the rotation speed of the central rod 504 to increase. Thus, the hollow semi-circle around the central rod 504 will increase in speed during rotation. Under the action of centrifugal force, the collision block 604 will move away from the central rod 504, and then pull the slider 703 to slide and stretch the elastic cord 605. Since the position of the collision block 604 changes, it will collide with the sounding rod 606 during rotation around the central rod 504, causing a certain sound to alert the medical staff and facilitating the medical staff to understand the patient's abnormal breathing situation in a timely manner;

[0043] During the process of the patient inhaling the medicine mist, if the patient wants to breathe air briefly due to breathing discomfort, the medical staff can rotate the knob 704 to drive the shaft rod 706 to rotate while squeezing the torsion spring 707. During the rotation of the shaft rod 706, the elliptical block 708 is driven to rotate. As a result, the elliptical block 708 loses its limiting effect on the positioning rod 709. Under the restoring force of the spring 710, the positioning rod 709 will retract into the slider 703 and slide out of the positioning hole 711. At this time, the slider 703 without limitation is pushed to slide inside the side groove 705 until it aligns with another positioning hole 711. Release the knob 704, and under the restoring force of the torsion spring 707, the shaft rod 706 will be driven to rotate in the reverse direction, so that the elliptical block 708 pushes the positioning rod 709 to slide out of the slider 703 and snap into the positioning hole 711 at this position to achieve locking. The sliding of the slider 703 will drive the semi-circular block 702 to rotate synchronously, closing the atomization channel 401 and the delivery channel 301 and opening the breathing channel 402. At this time, the patient can breathe air smoothly, and the free switching between the medicine mist and air can be realized without removing the mask 4, demonstrating the practicality of the device.

[0044] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0045] Therefore, any omissions, modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An atomization drug delivery device for airway management of critically ill patients, characterized in that, Including: An atomizer (1), a delivery pipe (2) is arranged on the outer surface of the atomizer (1), one end of the delivery pipe (2) far away from the atomizer (1) is fixedly connected with an atomizing pipe (3), a face mask (4) is arranged at the end of the atomizing pipe (3), a self - adjusting component (5) is arranged on the upper part of the atomizing pipe (3), a warning component (6) is arranged on the lower part of the atomizing pipe (3), and a switching component (7) is arranged at the connection between the atomizing pipe (3) and the face mask (4); The self - adjusting component (5) communicates with the outer surface of the face mask (4), the warning component (6) is linked with the self - adjusting component (5), and can warn of abnormal states during the self - adjusting process. The switching component (7) is used to switch the air inlet and outlet modes of the face mask (4).

2. The atomization drug delivery device for airway management of critically ill patients according to claim 1, characterized in that, The self - adjusting component (5) includes a hollow tube (501) fixedly connected to the outer surface of the face mask (4), a lightweight piston (502) is slidably connected inside the hollow tube (501), a rack (503) is fixedly connected to the side of the lightweight piston (502) far away from the face mask (4), a central rod (504) is movably inserted through the middle of the upper surface of the atomizing pipe (3), the top end of the central rod (504) penetrates the bottom of the hollow tube (501), and a gear (505) is fixedly connected to the top end of the central rod (504). The gear (505) is meshed with the rack (503).

3. The atomization drug delivery device for airway management of critically ill patients according to claim 2, characterized in that, Fan plates (506) are distributed in a circular matrix on the outer surface of the part of the central rod (504) extending into the atomizing pipe (3), and the included angles of the fan plates (506) are each sixty degrees. A chute (507) is opened on the inner wall of the side of the hollow tube (501), and the side of the slider (703) is slidably limited inside the chute (507).

4. The atomization drug delivery device for airway management of critically ill patients according to claim 1, wherein The warning component (6) includes a bottom box (601) fixedly connected to the bottom of the atomizing pipe (3), the central rod (504) penetrates the bottom of the atomizing pipe (3) and extends into the bottom box (601), hollow plates (602) are distributed in a circular matrix on the outer surface of the part of the central rod (504) extending into the bottom box (601), a sliding plate (603) is slidably limitedly connected inside the hollow plate (602), and a collision block (604) is fixedly connected to the end of the sliding plate (603) extending out of the hollow plate (602).

5. The atomization drug delivery device for airway management of critically ill patients according to claim 4, wherein, An elastic cord (605) is arranged inside the hollow plate (602), one end of the elastic cord (605) is fixedly connected to the inner wall of the hollow plate (602), and the other end is fixedly connected to the side of the sliding plate (603).

6. The atomizing drug delivery device for airway management of critically ill patients according to claim 5, wherein, Sound - emitting rods (606) are arranged around the inner wall of the bottom box (601), the sound - emitting rods (606) are distributed in a cross - shape, and a gap is left between the sound - emitting rods (606) and the collision block (604).

7. The atomization drug delivery device for airway management of critically ill patients according to claim 1, characterized in that, The end of the atomizing tube (3) is provided with a delivery channel (301). One end of the face mask (4) close to the atomizing tube (3) is provided with an atomizing channel (401). A breathing channel (402) is provided at a symmetric position of the atomizing channel (401). The atomizing channel (401) corresponds to the position of the delivery channel (301). A restraint strap (8) is provided on the side of the face mask (4).

8. The atomization drug delivery device for airway management of critically ill patients according to claim 1, characterized in that, The switching component (7) includes a ring (701) fixedly connected between the atomizing tube (3) and the face mask (4). A semi-circular block (702) is rotatably connected inside the ring (701). The two ends of the axis of the semi-circular block (702) are respectively rotatably connected to the atomizing tube (3) and the face mask (4). A slider (703) is fixedly connected to the outer surface of the semi-circular block (702). A knob (704) is rotatably connected to the end of the slider (703). A side groove (705) is provided on the side of the ring (701). The included angle of the side groove (705) is ninety degrees. The slider (703) slides inside the side groove (705).

9. The atomizing drug delivery device for airway management of critically ill patients according to claim 8, wherein A shaft rod (706) is movably inserted through the top end of the slider (703). An elliptical block (708) is fixedly connected to the end of the shaft rod (706) extending into the slider (703). A positioning rod (709) is movably inserted through the side of the slider (703). The outer surface of the elliptical block (708) abuts against the part of the positioning rod (709) extending into the slider (703). A spring (710) is provided on one side adjacent to the positioning rod (709).

10. The atomization drug delivery device for airway management of critically ill patients according to claim 9, wherein, A torsion spring (707) is sleeved on the outer surface of the part of the shaft rod (706) extending into the knob (704). A positioning hole (711) is provided on the inner wall of the side groove (705). The positioning rod (709) is movably clamped inside the positioning hole (711).

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