Nasal anesthesia dosing device

Abstract

The utility model provides a nasal cavity anesthesia dosing device which comprises a dose adjusting part, a spray injection part and a protective cap, the dose adjusting part comprises a first shell, a knob sleeve and a spiral push rod, and the required medicament dose is selected through the knob sleeve and the spiral push rod; accurate administration can be carried out according to dosage requirements of different patients; the spray injection part comprises a second shell, a liquid medicine core and a spray head, the interior of the second shell is hollow, a containing space for containing medicine is formed in the second shell, and before use, medical staff can detach the first shell from the second shell and place the liquid medicine core in the second shell to be fixed and replaced; the spiral push rod can extend into the second shell and abut against the liquid medicine core. The rotary knob sleeve is arranged at the tail of the dosage adjusting part and connected with the spiral push rod, the spiral push rod can push out liquid medicine in the liquid medicine core, and vaporific liquid medicine with the corresponding injection milliliter number is pushed out through the atomizing spray head to reach the surface of the mucous membrane of the nasal cavity, so that the anesthesia and sedation effects are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a nasal anesthesia delivery device. Background Technology

[0002] Patients often experience tension and anxiety after admission due to concerns about their condition and the safety of the surgery. Researchers define preoperative anxiety as "a state of unease or tension caused by patients’ worries about illness, hospitalization, anesthesia and surgery or unknown reasons." This state is related to surgical stress and can manifest as acute anxiety attacks and chronic, generalized anxiety.

[0003] For preoperative anxiety, medication remains the most commonly used treatment in clinical practice, especially for populations with a high incidence of preoperative anxiety, such as patients with malignant tumors and children. Preoperative sedation with medication is often necessary to alleviate preoperative anxiety. Currently, the main preoperative medications include the following: one is benzodiazepines. One class of drugs includes midazolam, lorazepam, and alprazolam; another is dexmedetomidine, a highly selective α2-receptor agonist. Besides its sedative effects, dexmedetomidine has also been shown to have analgesic, anti-anxiety, and delirium-reducing effects. Dexmedetomidine has very mild respiratory and circulatory depression and is reawakenable, and is currently widely used in clinical anesthesia and ICU sedation.

[0004] Therefore, how to provide a nasal anesthesia delivery device that facilitates precise drug delivery according to the dosage requirements of different patients is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a nasal anesthesia delivery device, so as to solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a nasal anesthesia drug delivery device, which includes: a dose adjustment unit, which includes a first outer shell, a knob sleeve, and a spiral push rod. One end of the knob sleeve is slidably connected inside the first outer shell, and the knob sleeve moves axially along the inner wall of the first outer shell; the spiral push rod is also rotatably connected to one end of the knob sleeve; a spray injection unit, which includes a second outer shell, a drug core, and a spray head. One end of the second outer shell is snapped into the first outer shell, and the interior of the second outer shell is hollow and has a accommodating space for containing the drug. The drug core is located in the accommodating space, and one end of the drug core abuts against the spiral push rod; the spray head is located at the other end of the second outer shell, and the other end of the drug core passes through the other end of the second outer shell and is connected to the spray head; a protective cap, which is sleeved on the outside of the second outer shell, the drug core, and the spray head, and is detachably snapped into the second outer shell.

[0007] Optionally, the knob sleeve includes an injection button and a dose selection ring. One end of the injection button is connected to one end of the dose selection ring, and the other end of the dose selection ring is rotatably connected to the spiral push rod. A first scale is engraved around the dose selection ring.

[0008] Optionally, a first display window is provided on the first housing, and the marking position of the first scale is adapted to the opening position of the first display window, so that when the dose selection ring is located inside the first housing and rotates relative to it, the first scale is located at the first display window to display different readings.

[0009] Optionally, a second display window is provided through the second outer casing, the length of which is adapted to the length of the liquid medicine core, so that the liquid medicine core can be fully observed through the second display window when it is located inside the accommodating space.

[0010] Optionally, a second scale is engraved on one side of the second display window, and the range of the second scale is adapted to the capacity of the medicine core.

[0011] Optionally, a rubber piston is provided at one end of the liquid core, and the spiral push rod abuts against the rubber piston to push the rubber piston to move.

[0012] Optionally, the other end of the liquid core is provided with an external thread, and one end of the spray head 23 is provided with an internal thread that matches the external thread. The other end of the liquid core passes through the other end of the second housing and is detachably connected to the spray head through the internal thread and the external thread.

[0013] Optionally, the spray head may further include a transparent protective cap adapted to the spray head, the transparent protective cap being detachably fitted onto the spray head.

[0014] Optionally, the capacity of the drug core is 500 μg; the range of the first scale is 0 to 100 μg, and the range of the second scale is 0 to 500 μg.

[0015] Beneficial effects:

[0016] This utility model provides a nasal anesthesia drug delivery device, including a dose adjustment unit, a spray injection unit, and a protective cap. The dose adjustment unit includes a first outer shell, a knob sleeve, and a screw rod, which are used to select the required drug dosage for precise drug delivery according to the dosage needs of different patients. The spray injection unit includes a second outer shell, a drug core, and a spray head. The second outer shell has a hollow interior space for containing the drug, and the drug core is located within this space. Before use, medical personnel can detach the first and second outer shells and place the drug core inside the second outer shell for fixation. After use, the drug core can be removed and replaced for the overall recycling of the device. The screw rod can extend into the second outer shell. The inner part of the device is aligned with the drug reservoir core. A knob sleeve is located at the tail of the dosage adjustment section and connected to the screw rod. In use, the spray head is first aimed at the patient's nostrils. By rotating the knob sleeve, it extends outwards from the first outer shell by different lengths, with each length representing the number of milliliters to be injected. The knob sleeve is then pushed back into the first outer shell, which drives the screw rod to push out the drug reservoir core and deliver the corresponding number of milliliters through the spray head. The drug is pressurized and dispersed by the spray head into a mist, reaching the nasal mucosa surface and producing an anesthetic and sedative effect. As an feasible method, the drug in the drug reservoir core should be dexmedetomidine. In addition, the protective cap facilitates storage when the drug delivery device is not in use, preventing contamination.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the nasal anesthesia delivery device provided in the embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the nasal anesthesia delivery device provided in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the nasal anesthesia delivery device provided in the embodiments of this application;

[0022] Figure label:

[0023] 1—Dosage adjustment unit;

[0024] 11—First outer shell;

[0025] 111—First display window;

[0026] 12—Knob Sleeve;

[0027] 121—Injection button;

[0028] 122—Dose Selection Loop;

[0029] 123—First graduation;

[0030] 13—Helical push rod;

[0031] 2—Spray injection section;

[0032] 21—Second outer shell;

[0033] 211—Second display window;

[0034] 212—Second graduation;

[0035] 22—Medication core;

[0036] 221—Rubber piston;

[0037] 23—Sprayer head;

[0038] 24—Transparent protective cap;

[0039] 3—Protective cap; Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Furthermore, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.

[0042] Please see Figure 1-3 This embodiment provides a nasal anesthesia drug delivery device, which includes: a dose adjustment unit 1, comprising a first outer shell 11, a knob sleeve 12, and a spiral push rod 13, one end of which is slidably connected inside the first outer shell 11 and moves axially along the inner wall of the first outer shell 11; the spiral push rod 13 is also rotatably connected to one end of the knob sleeve 12; and a spray injection unit 2, comprising a second outer shell 21, a drug core 22, and a spray head 23. One end of 1 is snapped into the first outer shell 11. The interior of the second outer shell 21 is hollow and has a accommodating space for containing the medicine. The medicine core 22 is located in the accommodating space, and one end of the medicine core 22 abuts against the spiral push rod 13. The spray head 23 is located at the other end of the second outer shell 21, and the other end of the medicine core 22 passes through the other end of the second outer shell 21 and is connected to the spray head 23. The protective cap 3 is sleeved on the outside of the second outer shell 21, the medicine core 22 and the spray head 23, and is detachably snapped into the second outer shell 21.

[0043] Specifically, this utility model provides a nasal anesthesia drug delivery device, including a dose adjustment unit 1, a spray injection unit 2, and a protective cap 3. The dose adjustment unit 1 includes a first outer shell 11, a knob sleeve 12, and a spiral push rod 13, which are used to select the required drug dosage to accurately deliver the drug according to the dosage requirements of different patients. The spray injection unit 2 includes a second outer shell 21, a drug core 22, and a spray head 23. The interior of the second outer shell 21 is hollow and has a container. The medication reservoir 22 is located within the medication reservoir. As an example, the medication reservoir 22 is completely filled with the required medication. Therefore, when using the medication reservoir 22 and the spray head 23, only a small amount of air needs to be expelled from the spray head 23 to achieve continuous drug delivery. Compared to existing product setups (such as dexmedetomidine nasal spray), this avoids medication loss caused by the need for multiple pre-sprays to expel air, thus improving drug utilization efficiency. Before use, medical personnel can... The first outer shell 11 and the second outer shell 21 are detached, and the medication core 22 is placed inside the second outer shell 21 and fixed. The medication core 22 can be removed and replaced after use to facilitate the recycling of the entire device. The spiral push rod 13 can extend into the second outer shell 21 and abut against the medication core 22. The knob sleeve 12 is located at the tail of the dose adjustment section 1 and is connected to the spiral push rod 13. In use, first aim the spray head 23 at the patient's nostrils, and rotate the knob sleeve 12 to extend it out of the first outer shell 11 by different lengths to adjust the dosage. Different degrees represent the number of milliliters to be injected. Pushing the knob sleeve 12 back into the first outer shell 11 again drives the spiral push rod 13 to push out the liquid medicine inside the medicine core 22, and pushes out the corresponding number of milliliters through the spray head 23. The liquid medicine is pressurized and dispersed by the spray head 23 and sprayed into a mist to reach the surface of the nasal mucosa, producing an anesthetic and sedative effect. As an example, the medicine in the medicine core 22 should be dexmedetomidine. In addition, the protective cap 3 makes it easy to store the drug delivery device when it is not in use and avoids contamination.

[0044] In some possible implementations, the knob sleeve 12 includes an injection button 121 and a dose selection ring 122. One end of the injection button 121 is connected to one end of the dose selection ring 122, and the other end of the dose selection ring 122 is rotatably connected to the screw push rod 13. A first scale 123 is engraved around the dose selection ring 122. A first display window 111 is provided on the first housing 11. The engraving position of the first scale 123 is adapted to the opening position of the first display window 111, so that when the dose selection ring 122 is rotated relative to the first housing 11, the first scale 123 is located at the first display window 111 and displays different readings.

[0045] Specifically, such as Figure 3As shown, the knob sleeve 12 includes an injection button 121 and a dose selection ring 122. The injection button 121 is protruding from the dose selection ring 122. The dose selection ring 122 has different first scales 123. When in use, the dose selection ring 122 can be rotated to drive the knob sleeve 12 to extend outward by different lengths, thereby displaying different injection scales on the first display window 111. This makes it easy to clearly view and determine the dosage of the single injection of medicine during use, thus making the administration more controllable.

[0046] In some possible implementations, a second display window 211 is provided through the second outer casing 21. The length of the second display window 211 is adapted to the length of the liquid medicine core 22 so that the liquid medicine core 22 can be fully observed through the second display window 211 when it is located inside the accommodating space. A second scale 212 is engraved on one side of the second display window 211, and the range of the second scale 212 is adapted to the capacity of the liquid medicine core 22.

[0047] Specifically, the second display window 211 allows for real-time viewing of the remaining milliliters of medicine in the medicine core 22.

[0048] In some possible implementations, a rubber piston 221 is provided at one end of the liquid core 22, and the spiral push rod 13 abuts against the rubber piston 221 to push the rubber piston 221 to move.

[0049] Specifically, by setting up the rubber piston 221, the spiral push rod 13 can abut against the rubber piston 221 to push the piston and realize the spraying of the liquid medicine. At the same time, due to the piston pushing setting, after the air in the liquid medicine core 22 is discharged for the first time, there is no or only a very small amount of extra air in the liquid medicine core 22 during each subsequent administration. This further reduces the number of times air is pre-sprayed in the liquid medicine core 22 during each administration, reduces the waste of medicine due to pre-spraying during each administration, and improves the accuracy of the medicine use.

[0050] In some possible implementations, the other end of the liquid core 22 is provided with an external thread, and one end of the spray head 23 is provided with an internal thread adapted to the external thread. The other end of the liquid core 22 passes through the other end of the second housing 21 and is detachably connected to the spray head 23 through the internal and external threads.

[0051] Specifically, by setting the liquid core 22 and the spray head 23 to a threaded detachable connection, the spray head 23 can be replaced individually each time it is used, thereby improving safety and avoiding cross-infection.

[0052] In some possible implementations, the spray head 23 may also include a transparent protective cap 24 adapted to the spray head 23, the transparent protective cap 24 being detachably fitted onto the spray head 23.

[0053] Specifically, the transparent protective cap 24 helps to protect the spray head 23 from contamination.

[0054] In some possible implementations, the capacity of the drug core 22 is 500 μg; the range of the first graduation 123 is 0–100 μg, and the range of the second graduation 212 is 0–500 μg.

[0055] Specifically, since the medication cartridge 22 contains dexmedetomidine, the standard adult dosage in clinical practice is 20-25 μg per nostril for a single spray, one spray per nostril, for a total of 100 μg per use. Air must be expelled from the nozzle before each spray, and additional medication is sprayed out during this process. Therefore, the medication cartridge 22 is designed with a capacity of 500 μg, and the second graduation 212 has a range of 0-500 μg, facilitating multiple anesthesia and sedation uses. Simultaneously, the first graduation 123 has a range of 0-100 μg, allowing for adjustment of the required dose per use. As an feasible approach, the first graduation 123 has uniformly spaced small divisions within the 0-100 μg range, each division being 10 μg, allowing for adaptive adjustments for patients with different dosage needs.

[0056] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0057] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A nasal anesthesia delivery device, characterized in that, The drug delivery device includes: The dosage adjustment unit (1) includes a first housing (11), a knob sleeve (12), and a spiral push rod (13). One end of the knob sleeve (12) is slidably connected inside the first housing (11), and the knob sleeve (12) moves axially along the inner wall of the first housing (11). The spiral push rod (13) is also rotatably connected to one end of the knob sleeve (12). The spray injection unit (2) includes a second outer shell (21), a liquid core (22), and a spray head (23). One end of the second outer shell (21) is snapped into the first outer shell (11). The interior of the second outer shell (21) is hollow and has a accommodating space for containing the liquid. The liquid core (22) is located in the accommodating space, and one end of the liquid core (22) abuts against the spiral push rod (13). The spray head (23) is located at the other end of the second outer shell (21), and the other end of the liquid core (22) passes through the other end of the second outer shell (21) and is connected to the spray head (23). A protective cap (3) is fitted over the second outer shell (21), the liquid core (22) and the spray head (23), and is detachably snapped into the second outer shell (21).

2. The drug delivery device according to claim 1, characterized in that, The knob sleeve (12) includes an injection button (121) and a dose selection ring (122). One end of the injection button (121) is connected to one end of the dose selection ring (122), and the other end of the dose selection ring (122) is rotatably connected to the spiral push rod (13). A first scale (123) is engraved around the dose selection ring (122).

3. The drug delivery device according to claim 2, characterized in that, The first housing (11) is provided with a first display window (111), and the marking position of the first scale (123) is adapted to the opening position of the first display window (111) so that when the dose selection ring (122) is located inside the first housing (11) and rotates relative to it, the first scale (123) is located at the first display window (111) to display different readings.

4. The drug delivery device according to claim 3, characterized in that, A second display window (211) is provided through the second outer shell (21). The length of the second display window (211) is adapted to the length of the medicine core (22) so that the medicine core (22) can be fully observed through the second display window (211) when the medicine core (22) is located inside the accommodating space.

5. The drug delivery device according to claim 4, characterized in that, A second scale (212) is engraved on one side of the second display window (211), and the range of the second scale (212) is adapted to the capacity of the liquid core (22).

6. The drug delivery device according to claim 5, characterized in that, A rubber piston (221) is provided at one end of the liquid core (22), and the spiral push rod (13) abuts against the rubber piston (221) to push the rubber piston (221) to move.

7. The drug delivery device according to claim 6, characterized in that, The other end of the liquid core (22) is provided with an external thread, and one end of the spray head (23) is provided with an internal thread that matches the external thread. The other end of the liquid core (22) passes through the other end of the second outer shell (21) and is detachably connected to the spray head (23) through the internal thread and the external thread.

8. The drug delivery device according to claim 7, characterized in that, The spray head (23) also includes a transparent protective cap (24) adapted to the spray head (23), and the transparent protective cap (24) is detachably fitted onto the spray head (23).

9. The drug delivery device according to claim 8, characterized in that, The capacity of the drug core (22) is 500 μg; the range of the first graduation (123) is 0 to 100 μg, and the range of the second graduation (212) is 0 to 500 μg.

Images