A nasal spray device for otolaryngology

Abstract

The present invention discloses a nasal spray device for otolaryngology, which relates to the technical field of nasal spray, and comprises a shell, the inner wall of the shell is penetrated by a push rod and slidably connected, and one end of the push rod is fixedly connected to a connector, the connector is fixedly connected to a first tension spring on the side close to the push rod, the side wall of the shell is fixedly connected to a medicine storage cartridge, and the inner wall of the medicine storage cartridge is provided with a mounting groove, and the end of the first tension spring away from the connector is provided with an adjustment mechanism, so that the amount of medicine sprayed can be freely controlled before spraying, and an extrusion mechanism is provided inside the mounting groove, so that the components in the medicine liquid can be mixed more evenly when spraying. This nasal spray device for otolaryngology can ensure accurate drug administration, improve patient comfort and treatment effect, and achieve more flexible and precise drug application control by pressing the extrusion plate to adjust the slider and the limit ring, and combining the scale to accurately control the spray flow rate.

Description

Technical Field

[0001] The invention relates to the technical field of nasal spray, in particular to a nasal spray device for otolaryngology. Background Art

[0002] Otolaryngology is a surgical discipline that diagnoses and treats the ears, nose, pharynx, larynx and related head and neck areas. With the advancement and development of science and technology, various medical disciplines have penetrated and promoted each other, expanding the scope of otolaryngology. The emergence of ear microsurgery, ear neurosurgery, skull base surgery, audiology and balance science, nasal endoscopic surgery, nasal neurosurgery (nasal skull base surgery), head and neck surgery, laryngeal microsurgery, voice and speech disease department, pediatric otolaryngology, etc. has greatly enriched the content of otolaryngology. Among them, rhinology is mainly a department that studies the anatomy, physiology and condition of the nose and respiratory system. Common nasal diseases include acute rhinitis, chronic rhinitis, sinusitis, nasal polyps, allergic rhinitis and rhinoplasty.

[0003] Nasal spray devices are widely used in the medical field. They are used to deliver drugs in the form of spray non-invasively into the nasal cavity, such as drugs for treating nasal diseases, and vaccines that can be absorbed through the nasal cavity, especially vaccines for respiratory infectious diseases, etc. There are many types of nasal spray devices, such as multi-dose, single-dose, double-dose, etc.

[0004] Medicines are prone to precipitation or stratification after being left standing for a long time. This precipitation may lead to reduced efficacy, uneven concentration or inaccurate dosing. At the same time, the amount of medicine sprayed by a general spray device cannot be adjusted. The fixed amount of medicine may cause patients to feel uncomfortable when using it. For some sensitive patients, too much medicine may irritate the nasal mucosa and cause adverse reactions such as pain, burning sensation or sneezing. Summary of the invention

[0005] The object of the present invention is to provide a nasal spray device for otolaryngology to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a nasal spray device for otolaryngology, comprising a shell, a push rod is slidably connected to the inner wall of the shell, and a connector is fixedly connected to one end of the push rod, a first tension spring is fixedly connected to the side of the connector close to the push rod, a medicine storage cartridge is fixedly connected to the side wall of the shell, and a mounting groove is provided on the inner wall of the medicine storage cartridge;

[0007] An adjustment mechanism is provided at one end of the first tension spring away from the connector, so that the amount of medicine to be sprayed can be freely controlled and adjusted before spraying;

[0008] The interior of the installation groove is provided with an extrusion mechanism to make the components in the medicine liquid mixed more evenly when spraying the medicine.

[0009] Preferably, the adjusting mechanism includes a limiting ring, and the side wall of the limiting ring is fixedly connected to a connecting block, the side wall of the connecting block is provided with a first sliding groove, and the inner wall of the first sliding groove is slidably connected to a third sliding rod, the end of the third sliding rod close to the connecting block is fixedly connected to a first spring, the end of the first spring away from the third sliding rod is fixedly connected to the inner wall of the first sliding groove, the top of the connecting block is provided with a second sliding groove, the outer wall of the third sliding rod is fixedly connected to a sliding block, and the outer wall of the sliding block is slidably connected to the inner wall of the second sliding groove, the side wall of the connecting block is fixedly connected to a protrusion, and the end of the third sliding rod away from the first spring is fixedly connected to an extrusion plate.

[0010] Preferably, the side wall of the shell is fixedly connected to the limiting plate, and the inner wall of the limiting plate is provided with a third sliding groove, the outer wall of the protrusion is slidably connected to the inner wall of the third sliding groove, and the outer wall of the slider corresponds to the side wall slot of the limiting plate.

[0011] Preferably, the inner wall of the limiting ring is slidably connected to the outer wall of the push rod, and the side wall of the limiting ring passes through and is slidably connected to the first sliding rod, and both ends of the first sliding rod are fixedly connected to the side walls of the outer shell, and the side wall of the connecting head passes through and is slidably connected to the outer wall of the first sliding rod.

[0012] Preferably, the end of the connecting head away from the push rod is fixedly connected to a second sliding rod, and the end of the second sliding rod away from the connecting head is fixedly connected to an extrusion head, the side wall of the connecting head is fixedly connected to a sliding sleeve, and the end of the sliding sleeve away from the connecting head is fixed to a first orifice plate, the outer wall of the first orifice plate slides in contact with the inner wall of the medicine storage cartridge, the end of the first orifice plate away from the sliding sleeve is fixedly connected to a second tension spring, and the end of the second tension spring away from the first orifice plate is fixedly connected to a second orifice plate, and the outer wall of the second orifice plate slides in contact with the inner wall of the medicine storage cartridge.

[0013] Preferably, the side wall of the drug storage cartridge is fixedly connected to a drug delivery cartridge, the outer wall of the extrusion head slides on the inner wall of the drug delivery cartridge, the inner wall of the first orifice plate slides on the outer wall of the drug delivery cartridge, and the inner wall of the second orifice plate slides on the outer wall of the drug delivery cartridge.

[0014] Preferably, the extrusion mechanism includes a sliding plate, and the top of the sliding plate is fixedly connected to a second spring, the end of the second spring away from the sliding plate is fixedly connected to the inner wall of the medicine storage cartridge, the side wall of the mounting groove is fixedly connected to a rotating shaft, and the outer wall of the rotating shaft is rotatably connected to an L-shaped rod.

[0015] Preferably, one end of the L-shaped rod corresponds to the upper side of the sliding plate, and the side wall of the sliding plate is slidably connected to the inner wall of the mounting groove.

[0016] Preferably, a drug outlet is formed through the side wall of the drug storage cartridge, a nozzle is fixedly mounted on the side wall of the drug storage cartridge, and the interior of the nozzle is connected to the inner wall of the drug outlet, and a one-way valve is fixedly mounted on the side wall of the drug delivery cartridge.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Before applying the medicine, press the extrusion plates on both sides to drive the third slide bar to slide, thereby driving the slide bar to slide along the inner wall of the second slide groove, and then press the two extrusion plates to drive the limit ring to move. The scale set on the outer wall of the limit plate can indicate the amount of medicine discharged in each area. At this time, the scale of the position can be selected according to the amount of medicine suitable for the patient, so as to control the spray flow more accurately and flexibly, which can not only ensure the accuracy of drug administration, but also improve the patient's comfort and treatment effect.

[0019] 2. When the device needs to be used, the connector will drive the first orifice plate to move through the sliding sleeve, so that the first orifice plate pushes the medicine along the inner wall of the medicine storage cylinder, so the medicine will flow from the through hole to the other side of the first orifice plate, which can make the medicine in the medicine storage cylinder mixed more evenly, thereby ensuring that the medicine liquid remains uniform, avoiding the occurrence of medicine precipitation resulting in poor effect of medicine application, and improving the effectiveness of the medicine liquid and the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 It is a partial structural cross-sectional view of the present invention;

[0023] Figure 4 It is a partial structural cross-sectional view of the adjustment mechanism of the present invention;

[0024] Figure 5 It is a partial structural cross-sectional view of the adjustment mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the structural connection of the extrusion mechanism of the present invention;

[0026] Figure 7 It is a partial structural cross-sectional view of the present invention.

[0027] In the figure: 1, shell; 2, push rod; 3, connecting head; 4, first tension spring; 5, adjusting mechanism; 6, first slide rod; 7, second slide rod; 8, extrusion head; 9, sliding sleeve; 10, first orifice plate; 11, second tension spring; 12, second orifice plate; 13, drug storage cartridge; 14, drug delivery cartridge; 15, mounting groove; 16, extrusion mechanism; 17, drug outlet; 18, nozzle; 19, one-way valve; 501, limit ring; 502, connecting block; 503, first slide groove; 504, third slide rod; 505, first spring; 506, second slide groove; 507, slider; 508, limit plate; 509, third slide groove; 510, bump; 511, extrusion plate; 1601, sliding plate; 1602, second spring; 1603, rotating shaft; 1604, L-shaped rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] For example, see Figure 1-7 The present invention provides a nasal spray device for otolaryngology, comprising a shell 1, a push rod 2 is slidably connected to the inner wall of the shell 1, and a connector 3 is fixedly connected to one end of the push rod 2, a first tension spring 4 is fixedly connected to the side of the connector 3 close to the push rod 2, a drug storage cartridge 13 is fixedly connected to the side wall of the shell 1, and a mounting groove 15 is provided on the inner wall of the drug storage cartridge 13, a drug delivery cartridge 14 is fixedly connected to the side wall of the drug storage cartridge 13, a drug outlet 17 is provided through the side wall of the drug storage cartridge 13, a spray head 18 is fixedly installed on the side wall of the drug storage cartridge 13, and the interior of the spray head 18 is connected to the inner wall of the drug outlet 17, and a one-way valve 19 is fixedly installed on the side wall of the drug delivery cartridge 14;

[0030] An adjustment mechanism 5 is provided at one end of the first tension spring 4 away from the connector 3, so that the amount of the sprayed medicine can be freely controlled and adjusted before spraying;

[0031] Furthermore, the adjustment mechanism 5 includes a limit ring 501, and the side wall of the limit ring 501 is fixedly connected to a connecting block 502, the side wall of the connecting block 502 is provided with a first slide groove 503, and the inner wall of the first slide groove 503 is slidably connected to a third slide rod 504, the end of the third slide rod 504 close to the connecting block 502 is fixedly connected to a first spring 505, the end of the first spring 505 away from the third slide rod 504 is fixedly connected to the inner wall of the first slide groove 503, the top of the connecting block 502 is penetrated by a second slide groove 506, and the third slide rod 5 The outer wall of the connecting block 504 is fixedly connected with a slider 507, and the outer wall of the slider 507 is slidably connected to the inner wall of the second slide groove 506, the side wall of the connecting block 502 is fixedly connected with a protrusion 510, the end of the third slide rod 504 away from the first spring 505 is fixedly connected with an extrusion plate 511, the side wall of the housing 1 is fixedly connected with a limiting plate 508, and the inner wall of the limiting plate 508 is provided with a third slide groove 509, the outer wall of the protrusion 510 is slidably connected to the inner wall of the third slide groove 509, and the outer wall of the slider 507 corresponds to the side wall card groove of the limiting plate 508;

[0032] More specifically, in this embodiment, the nasal spray device plays a vital auxiliary role in the treatment of rhinitis. It can effectively alleviate the symptoms of inflammation and accelerate the repair process of the nasal mucosa by accurately applying medicine to the nasal cavity, bringing significant comfort and therapeutic effects to the patient. Before using the device, the medicine to be applied needs to be added to the medicine storage cartridge 13. The medicine storage cartridge 13 can provide a suitable storage space for the medicine to ensure that the medicine maintains stability and effectiveness during storage;

[0033] Since each patient has different rhinitis symptoms, course of disease and personal constitution, the required dosage of medicine will also be different. It is necessary to freely adjust the spray dosage according to the specific situation. Before applying the medicine, it is necessary to operate the adjustment mechanism 5. First, by pressing the squeezing plates 511 on both sides, the squeezing plates 511 will drive the third slide bar 504 to slide along the inner wall of the first slide groove 503 when being squeezed. At the same time, the first spring 505 will be compressed due to the sliding of the third slide bar 504. During the sliding of the third slide bar 504, the slider 507 will be driven to slide along the inner wall of the second slide groove 506. When the slider 507 slides along the inner wall of the second slide groove 506, the slider 507 will be driven to slide along the inner wall of the second slide groove 506. When the inner wall of the second slide groove 506 slides to the maximum distance, the two extrusion plates 511 are kneaded together and the limiting ring 501 can be driven to move through the connecting block 502. In this process, the outer wall of the protrusion 510 will slide along the inner wall of the third slide groove 509, which can ensure that the translation of the connecting block 502 is more stable and will not shake. By setting a scale on the outer wall of the limiting plate 508, the scale can accurately indicate the content of the drug output at each position. At this time, the scale of the position can be selected according to the drug output amount suitable for the patient. The inner wall of the limiting ring 501 is slidably connected to the outer wall of the push rod 2, and the limiting ring 501 is driven by kneading the two extrusion plates 511. 01 slides along the outer wall of the push rod 2, and then moves the slider 507 to the position corresponding to the scale, and then releases the two extrusion plates 511. The previously compressed first spring 505 will be elastically reset at this time, thereby driving the third slide bar 504 to slide in the opposite direction along the inner wall of the first slide groove 503. At the same time, the third slide bar 504 will drive the slider 507 to move. When the first spring 505 is reset, the outer wall of the slider 507 will be engaged in the side wall groove of the limit plate 508 opposite to the scale. At this time, the limiting of the entire adjustment mechanism 5 is completed. During the movement of the limit ring 501, the side wall of the limit ring 501 will The connector 3 is squeezed, and the side wall of the limiting ring 501 penetrates and slides to connect the first slide bar 6, and both ends of the first slide bar 6 are fixedly connected to the side wall of the shell 1, and the side wall of the connector 3 penetrates and slides to connect the outer wall of the first slide bar 6, so the connector 3 will slide along the outer wall of the first slide bar 6 by the movement of the limiting ring 501. When the connector 3 moves, it will drive the push rod 2 to move synchronously. After the limiting ring 501 moves, the distance that the connector 3 can slide on the outer wall of the first slide bar 6 becomes shorter, and the distance that the push rod 2 can press also becomes shorter, so that the amount of medicine applied by the spray can be accurately controlled, and the effect of the amount of medicine being suitable for the symptoms can be achieved;

[0034] As described above, before applying the medicine, pressing the extrusion plates 511 on both sides drives the third slide bar 504 to slide, thereby driving the slider 507 to slide along the inner wall of the second slide groove 506, and then pressing the two extrusion plates 511 drives the limiting ring 501 to move. The scales set on the outer wall of the limiting plate 508 can indicate the amount of medicine discharged in each area. At this time, the scale of the position can be selected according to the amount of medicine discharged suitable for the patient, so as to control the spray flow rate more accurately and flexibly, which can not only ensure the accuracy of drug administration, but also improve the patient's comfort and treatment effect.

[0035] Embodiment 2, on the basis of the above embodiment, the end of the connector 3 away from the push rod 2 is fixedly connected to the second slide rod 7, and the end of the second slide rod 7 away from the connector 3 is fixedly connected to the extrusion head 8, the side wall of the connector 3 is fixedly connected to the sliding sleeve 9, and the end of the sliding sleeve 9 away from the connector 3 is fixed with a first orifice plate 10, the outer wall of the first orifice plate 10 fits and slides on the inner wall of the drug storage cartridge 13, the end of the first orifice plate 10 away from the sliding sleeve 9 is fixedly connected to the second tension spring 11, and The second tension spring 11 is fixedly connected to the second orifice plate 12 at one end away from the first orifice plate 10. The outer wall of the second orifice plate 12 slides on the inner wall of the drug storage cylinder 13. The outer wall of the extrusion head 8 slides on the inner wall of the drug delivery cylinder 14. The inner wall of the first orifice plate 10 slides on the outer wall of the drug delivery cylinder 14. The inner wall of the second orifice plate 12 slides on the outer wall of the drug delivery cylinder 14. The interior of the mounting groove 15 is provided with an extrusion mechanism 16 to make the components in the drug solution mixed more evenly when spraying the drug.

[0036] Further, the squeezing mechanism 16 includes a sliding plate 1601, and a second spring 1602 is fixedly connected to the top of the sliding plate 1601, and one end of the second spring 1602 away from the sliding plate 1601 is fixedly connected to the inner wall of the medicine storage cartridge 13, and a rotating shaft 1603 is fixedly connected to the side wall of the mounting groove 15, and an L-shaped rod 1604 is slidably connected to the outer wall of the rotating shaft 1603, and one end of the L-shaped rod 1604 corresponds to the top of the sliding plate 1601, and the side wall of the sliding plate 1601 is slidably connected to the inner wall of the mounting groove 15;

[0037] More specifically, in the present embodiment, when the device needs to be used later, the device is aligned with the nasal cavity, and then the nozzle 18 is inserted into the nasal cavity. Then, the push rod 2 is pressed to slide the connector 3 along the outside of the first slide rod 6. Then, the first tension spring 4 will be stretched, and at the same time, the connector 3 will drive the first orifice plate 10 to move through the sliding sleeve 9, so that the first orifice plate 10 slides along the inner wall of the medicine storage cartridge 13. The medicine will be pushed during the sliding process. Since a plurality of through holes are provided through the side wall of the first orifice plate 10, the medicine will flow from the through holes to the other side of the first orifice plate 10. Then, when the first orifice plate 10 slides to a certain distance, the outer wall of the first orifice plate 10 will detach from the sliding plate 1601. Then, the sliding plate 1601 will slide downward along the inner wall of the mounting groove 15 under the elastic force of the second spring 1602. Then, After that, it will drive one end of the L-shaped rod 1604 to move, so that the L-shaped rod 1604 rotates along the rotating shaft 1603 as the axis, so that the other end of the L-shaped rod 1604 slides upward along the inner wall of the installation groove 15, and then it will break away from the side wall of the second orifice plate 12. At this time, the second orifice plate 12 is no longer limited by the L-shaped rod 1604. At the same time, the stretching and retraction of the second tension spring 11 makes the second orifice plate 12 quickly move closer to the first orifice plate 10. The first orifice plate 10 and the second orifice plate 12 slide relative to each other along the inner wall of the drug storage cartridge 13, so that the medicine in the drug storage cartridge 13 can be mixed more evenly, avoiding the precipitation of medicines and causing poor effect of applying medicines. The first orifice plate 10 and the second orifice plate 12 are in contact through the reset and retraction of the second tension spring 11, which can break up the drug lumps in the medicine to ensure the uniform distribution of the medicine in the medicine.

[0038] The one-way valve 19 is provided on the side wall of the drug delivery barrel 14, so that the medicine in the drug storage barrel 13 can be delivered to the drug delivery barrel 14, and then the connector 3 will drive the extrusion head 8 to slide along the inner wall of the drug delivery barrel 14 through the second slide rod 7, so that the medicine inside the drug delivery barrel 14 is squeezed into the inside of the spray head 18 through the drug outlet 17, and then continues to spray to the drug application place. After completing one drug application, stop pressing the push rod 2. At this time, the connector 3 will be reset by the tension of the first tension spring 4, so as to drive the push rod 2 to slide out of the inside of the shell 1. When the extrusion head 8 is reset along the inside of the drug delivery barrel 14, a part of the medicine will be driven into the inside of the drug delivery barrel 14 through the one-way valve 19, so as to facilitate the next drug application;

[0039] As described above, when the device needs to be used, the connector 3 will drive the first orifice plate 10 to move through the sliding sleeve 9, so that the first orifice plate 10 pushes the medicine along the inner wall of the medicine storage barrel 13, so the medicine will flow from the through hole to the other side of the first orifice plate 10, so that the medicine in the medicine storage barrel 13 can be mixed more evenly, thereby ensuring that the medicine liquid remains uniform, avoiding the occurrence of medicine precipitation resulting in poor effect of the medicine, and improving the effectiveness of the medicine liquid and the safety of use.

[0040] Working principle: Before applying the medicine, the adjustment mechanism 5 needs to be operated. First, the squeezing plates 511 on both sides are pressed. Then, when the squeezing plates 511 are squeezed, the third slide bar 504 is driven to slide along the inner wall of the first slide groove 503. At the same time, the first spring 505 is compressed due to the sliding of the third slide bar 504. During the sliding of the third slide bar 504, the slider 507 is driven to slide along the inner wall of the second slide groove 506. When the slider 507 slides to the maximum distance along the inner wall of the second slide groove 506, the two squeezing plates 511 are pinched together to drive the limit ring 501 to move through the connecting block 502. During this process, the protrusion 51 The outer wall of the limiting ring 501 is slidably connected to the outer wall of the push rod 2, and the limiting ring 501 is driven to slide along the outer wall of the push rod 2 by kneading the two squeezing plates 511, and then the slider 507 is moved to the position corresponding to the scale, and then the two squeezing plates 511 are released, and the first spring 505 that was previously compressed will be elastic at this time. When the first spring 505 is reset, the outer wall of the slider 507 is engaged in the side wall groove of the limit plate 508 opposite to the scale. At this time, the limiting of the adjustment mechanism 5 as a whole is completed. During the movement of the limit ring 501, the side wall of the limit ring 501 squeezes the connector 3, and the side wall of the limit ring 501 penetrates and slides to the first slider 6, and both ends of the first slider 6 are fixedly connected to the side wall of the shell 1, and the side wall of the connector 3 penetrates and slides to the outer wall of the first slider 6, so The connecting head 3 will slide along the outer wall of the first slide bar 6 due to the movement of the limiting ring 501. When the connecting head 3 moves, it will drive the push rod 2 to move synchronously. After the limiting ring 501 is moved, the distance that the connecting head 3 can slide on the outer wall of the first slide bar 6 becomes shorter, and the distance that the push rod 2 can be pressed also becomes shorter, so that the amount of medicine applied by the spray can be accurately controlled, and the effect of the medicine dosage can be achieved. The patient can choose the spray device setting with the corresponding scale according to the amount of medicine he needs, accelerate the repair process of the nasal mucosa, and realize accurate and flexible control of the spray flow rate, which not only ensures the accuracy of drug administration, but also improves the patient's treatment comfort and overall treatment effect.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nasal spray device for otolaryngology, comprising a housing (1), characterized in that: A push rod (2) is slidably connected to the inner wall of the housing (1), and one end of the push rod (2) is fixedly connected to a connector (3), and a first tension spring (4) is fixedly connected to the side of the connector (3) close to the push rod (2); a drug storage cartridge (13) is fixedly connected to the side wall of the housing (1), and a mounting groove (15) is provided on the inner wall of the drug storage cartridge (13); An adjustment mechanism (5) is provided at one end of the first tension spring (4) away from the connector (3) so as to freely control and adjust the amount of medicine to be sprayed before spraying; The installation groove (15) is provided with an extrusion mechanism (16) inside so as to evenly mix the components in the medicine liquid when spraying the medicine; The adjustment mechanism (5) comprises a limiting ring (501), and a connecting block (502) is fixedly connected to the side wall of the limiting ring (501), a first sliding groove (503) is formed on the side wall of the connecting block (502), and a third sliding rod (504) is slidably connected to the inner wall of the first sliding groove (503); The end of the third slide bar (504) close to the connecting block (502) is fixedly connected to a first spring (505), the end of the first spring (505) away from the third slide bar (504) is fixedly connected to the inner wall of the first slide groove (503), the top of the connecting block (502) is penetrated by a second slide groove (506), the outer wall of the third slide bar (504) is fixedly connected to a slider (507), and the outer wall of the slider (507) is slidably connected to the inner wall of the second slide groove (506); The side wall of the connecting block (502) is fixedly connected with a protrusion (510), and the end of the third slide bar (504) away from the first spring (505) is fixedly connected with an extrusion plate (511); the side wall of the housing (1) is fixedly connected with a limiting plate (508), and the inner wall of the limiting plate (508) is provided with a third sliding groove (509), the outer wall of the protrusion (510) is slidably connected to the inner wall of the third sliding groove (509), and the outer wall of the slider (507) corresponds to the side wall slot of the limiting plate (508); the inner wall of the limiting ring (501) is slidably connected to the outer wall of the push rod (2), and the side wall of the limiting ring (501) penetrates and slides to connect with the first slide bar (6), and both ends of the first slide bar (6) are fixedly connected to the side wall of the housing (1), and the side wall of the connector (3) penetrates and slides to connect with the first slide bar (6). connected to the outer wall of the first slide bar (6); the end of the connector (3) away from the push rod (2) is fixedly connected to the second slide bar (7), and the end of the second slide bar (7) away from the connector (3) is fixedly connected to the extrusion head (8); the side wall of the connector (3) is fixedly connected to the sliding sleeve (9), and the end of the sliding sleeve (9) away from the connector (3) is fixedly connected to the first orifice plate (10), the outer wall of the first orifice plate (10) fits and slides on the inner wall of the drug storage cartridge (13), the end of the first orifice plate (10) away from the sliding sleeve (9) is fixedly connected to the second tension spring (11), and the end of the second tension spring (11) away from the first orifice plate (10) is fixedly connected to the second orifice plate (12), and the outer wall of the second orifice plate (12) fits and slides on the inner wall of the drug storage cartridge (13); The side wall of the drug storage cylinder (13) is fixedly connected to the drug delivery cylinder (14), and the outer wall of the extrusion head (8) is slidably fitted on the inner wall of the drug delivery cylinder (14); The inner wall of the first hole plate (10) is slidably fitted on the outer wall of the drug delivery barrel (14), and the inner wall of the second hole plate (12) is slidably fitted on the outer wall of the drug delivery barrel (14); The squeezing mechanism (16) comprises a sliding plate (1601), and a second spring (1602) is fixedly connected to the top of the sliding plate (1601), and an end of the second spring (1602) away from the sliding plate (1601) is fixedly connected to the inner wall of the medicine storage cartridge (13), and a rotating shaft (1603) is fixedly connected to the side wall of the mounting groove (15), and an L-shaped rod (1604) is rotatably connected to the outer wall of the rotating shaft (1603).

2. The nasal spray device for otorhinolaryngology according to claim 1, characterized in that: One end of the L-shaped rod (1604) corresponds to the upper side of the sliding plate (1601), and the side wall of the sliding plate (1601) is slidably connected to the inner wall of the mounting groove (15).

3. The nasal spray device for otolaryngology according to claim 2, characterized in that: A drug outlet (17) is formed through the side wall of the drug storage cartridge (13), a nozzle (18) is fixedly mounted on the side wall of the drug storage cartridge (13), and the interior of the nozzle (18) is connected to the inner wall of the drug outlet (17), and a one-way valve (19) is fixedly mounted on the side wall of the drug delivery cartridge (14).

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