Local anesthetic spraying device capable of improving operation stability for anesthesiology department

Abstract

The invention discloses a local anesthetic spraying device capable of improving operation stability for the anesthesiology department, and belongs to the field of medical instruments, a storage cylinder for containing anesthetic liquid is provided, a spraying assembly is arranged on the storage cylinder, and the spraying assembly is used for switching sprayers with different precisions to spray an affected part; the driving assembly is arranged in the storage cylinder, the driving assembly is used for stably extruding the anesthetic liquid medicine in the storage cylinder, and meanwhile, the spraying dosage can be set; the adding assembly is arranged on the storage cylinder; the spraying assembly adapts to different anesthesia scenes by switching sprayers with different precisions, liquid medicine spraying is more targeted, the driving assembly extrudes the liquid medicine through stable power output, force fluctuation of manual pressing is avoided, meanwhile, through the dose setting function, it is ensured that the amount of the liquid medicine sprayed every time is consistent, and the spraying efficiency is improved. Influence of anesthesia effect caused by insufficient dosage or adverse reaction caused by excessive dosage are avoided.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically, to a local anesthetic spraying device for use in anesthesiology to improve operational stability. Background Technology

[0002] With the continuous development of medical technology, clinical practice has placed higher demands on the precision, safety, and convenience of local anesthesia. Different patients have different weights, anesthesia sites, and anatomical structures, requiring flexible adjustments to the range, precision, and dosage of the anesthetic solution spray. At the same time, the purity of the anesthetic solution is directly related to medication safety, and the presence of impurities may cause local irritation or block the drug delivery channel. In addition, insufficient stability during operation can easily lead to deviation of the drug solution spray, affecting the anesthetic effect and even increasing medical risks. These clinical needs are driving the continuous optimization of local anesthesia drug delivery equipment.

[0003] Current local anesthesia administration techniques still have significant shortcomings. They lack targeted spraying adaptation capabilities, making it difficult to flexibly adjust spraying precision according to different anesthesia scenarios. They cannot simultaneously meet the needs of precise spot spraying and large-area coverage. At the same time, the control of the dosage is not precise enough, relying heavily on the operator's experience and judgment. This can easily lead to insufficient dosage affecting the anesthetic effect or excessive dosage causing adverse reactions. Summary of the Invention

[0004] To address the issues that existing equipment lacks targeted spraying adaptability, making it difficult to flexibly adjust spraying precision according to different anesthesia scenarios, and cannot simultaneously meet the needs of precise spot spraying and large-area coverage, while the control of drug dosage is not precise enough, relying heavily on the operator's experience and judgment, which can easily lead to insufficient dosage affecting the anesthetic effect or excessive dosage causing adverse reactions, the purpose of this invention is to provide a local anesthetic spraying device for anesthesiology that improves operational stability.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A local anesthetic spraying device for improving operational stability in anesthesiology includes a storage cylinder for holding anesthetic solution, a spraying assembly on the storage cylinder, the spraying assembly being able to switch between nozzles of different precision; a driving assembly disposed inside the storage cylinder, an adding assembly disposed on the storage cylinder, the adding assembly adding anesthetic solution to the storage cylinder, and a stabilizing assembly disposed on the storage cylinder.

[0007] Optionally, the spraying assembly includes a rotating shaft fixedly mounted on a storage cylinder, a set of connecting plates fixedly mounted on the rotating shaft, and mounting cylinders fixedly mounted on each of the connecting plates. A movable cylinder is slidably mounted inside the mounting cylinder, and a first spring is fixedly mounted on the movable cylinder. The end of the first spring away from the movable cylinder is fixedly connected to the inner wall of the mounting cylinder. A tapered connector is fixedly mounted on the movable cylinder. A tapered hole that mates with the tapered connector is opened on the storage cylinder, and the tapered hole communicates with the inside of the storage cylinder. Spray heads are fixedly mounted on the mounting cylinder, and the spraying range and accuracy of each spray head increase sequentially in a clockwise direction.

[0008] Optionally, the drive assembly includes an electric telescopic rod fixedly installed inside the storage cylinder, and a piston is fixedly installed on the output end of the electric telescopic rod.

[0009] Optionally, the piston is provided with a pair of mounting grooves, and a second spring is fixedly installed in each of the mounting grooves. A limit rod is fixedly installed on each of the second springs. Several sets of limit cylinders are fixedly installed on the storage cylinder. A limit hole that cooperates with the limit rod is provided in the limit cylinder. A threaded rod is threadedly connected to the limit cylinder. A sealing plate is fixedly installed at one end of the threaded rod located inside the limit cylinder.

[0010] Optionally, the adding component includes an adding cylinder fixedly installed on the storage cylinder, a filter ring fixedly installed inside the adding cylinder, and an inlet chamber opened inside the adding cylinder.

[0011] Optionally, a third spring is fixedly installed on the filter ring, and a movable column is fixedly installed on the third spring.

[0012] Optionally, the stabilizing component includes a stabilizing frame disposed above the storage cylinder, a pull rod slidably installed within the stabilizing frame and limited by a locking component, a rotating rod rotatably installed within the pull rod and limited by a damping component, a connecting piece fixedly installed on the rotating rod, a connecting frame rotatably mounted on a limiting frame, and a limiting frame fixedly mounted on the storage cylinder.

[0013] Optionally, the limiting frame has an annular groove, a movable plate is slidably installed in the annular groove, the movable plate is fixedly installed on the connecting frame, and bolts are threadedly connected to the movable plate.

[0014] Optionally, the locking assembly includes several slots formed in the stabilizer frame, the pull rod has an installation cavity, an electromagnet is provided in the installation cavity, a fourth spring is fixedly installed on the electromagnet, a locking block is fixedly installed on the fourth spring, and the locking block is adapted to the slot.

[0015] Optionally, the damping assembly includes a fixed cylinder fixedly mounted on the tie rod, a fifth spring fixedly mounted inside the fixed cylinder, an abutment post fixedly mounted on the fifth spring, and the end of the abutment post away from the fifth spring abutting against the rotating rod.

[0016] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0017] In the above solution, by setting up a spraying component, the spraying component can adapt to different anesthesia scenarios by switching between nozzles of different precision, making the spraying of the medicine more targeted.

[0018] By setting up a drive component, the drive component squeezes the liquid medicine through stable power output, eliminating the force fluctuations of manual pressing. At the same time, through the dosage setting function, it ensures that the amount of liquid medicine sprayed each time is consistent, avoiding insufficient dosage affecting the anesthetic effect or excessive dosage causing adverse reactions.

[0019] By adding components, the components can remove impurities while replenishing the liquid, filtering out impurities in the liquid and preventing the spraying components from getting clogged, thus ensuring a continuous and smooth spraying process.

[0020] By incorporating a stabilizing component, the device's shaking during spraying is suppressed as a whole, reducing the impact of hand tremors on spraying accuracy and ensuring that the medication accurately covers the target affected area. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the storage cylinder of the present invention;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram at point A in the diagram;

[0025] Figure 4 This is a schematic diagram showing the cooperation between the limiting rod and the second spring of the present invention;

[0026] Figure 5 This is a schematic diagram of the spraying assembly of the present invention;

[0027] Figure 6 A schematic diagram of the structure of the added components for this invention;

[0028] Figure 7This is a schematic diagram of the structure of the stabilizing component of the present invention;

[0029] Figure 8 For the present invention Figure 7 Schematic diagram at point B in the diagram;

[0030] Figure 9 This is a schematic diagram of the damping component of the present invention.

[0031] [Figure Labels]

[0032] 10. Storage cylinder;

[0033] 20. Spraying assembly; 21. Rotating shaft; 22. Connecting plate; 23. Mounting cylinder; 24. Tapered hole; 25. Movable cylinder; 26. Tapered connector; 27. First spring; 28. Sprayer head;

[0034] 30. Drive assembly; 31. Electric telescopic rod; 32. Piston; 33. Mounting groove; 34. Second spring; 35. Limiting rod; 36. Limiting cylinder; 37. Limiting hole; 38. Threaded rod; 39. Sealing plate;

[0035] 40. Adding component; 41. Adding cylinder; 42. Filter ring; 43. Movable column; 44. Third spring; 45. Liquid inlet chamber;

[0036] 50. Stabilizing component; 51. Stabilizing frame; 52. Tie rod; 53. Rotating rod; 54. Connecting frame; 55. Limiting frame; 56. Annular groove; 57. Movable plate; 58. Bolt;

[0037] 60. Locking assembly; 61. Locking slot; 62. Mounting cavity; 63. Electromagnet; 64. Fourth spring; 65. Locking block;

[0038] 70. Damping assembly; 71. Fixed cylinder; 72. Fifth spring; 73. Abutment post.

[0039] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0041] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0042] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0043] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0044] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0045] like Figures 1 to 9As shown in the figure, this embodiment of the invention provides a local anesthetic spraying device for improving operational stability in anesthesiology, including a storage cylinder 10 for holding anesthetic solution, a spraying assembly 20 disposed on the storage cylinder 10, the spraying assembly 20 being used to switch between nozzles 28 of different precision to spray the affected area; a driving assembly 30 disposed inside the storage cylinder 10, the driving assembly 30 being used to stably compress the anesthetic solution inside the storage cylinder 10, and simultaneously being able to set the spraying dosage; an adding assembly 40 disposed on the storage cylinder 10, the adding assembly 40 being used to add anesthetic solution into the storage cylinder 10 and remove impurities to prevent clogging of the spraying assembly 20; and a stabilizing assembly 50 disposed on the storage cylinder 10, the stabilizing assembly 50 being used to improve the stability of the anesthetic solution during spraying;

[0046] The storage cylinder 10, as the core supporting component, provides a sealed and stable storage space for the anesthetic solution, preventing leakage or contamination. The spraying component 20 adapts to different anesthesia scenarios by switching between nozzles 28 of different precision, making the spraying more targeted. The drive component 30 squeezes the solution with stable power output, eliminating the fluctuations in force caused by manual pressing. At the same time, the dosage setting function ensures that the amount of solution sprayed each time is consistent, avoiding insufficient dosage affecting the anesthetic effect or excessive dosage causing adverse reactions. The adding component 40 removes impurities while replenishing the solution, preventing the spraying component 20 from being blocked from the source and ensuring a continuous and smooth spraying process. The stabilizing component 50 suppresses the shaking of the device during spraying, reducing the impact of hand tremors during operation on the spraying accuracy, allowing the solution to accurately cover the target affected area.

[0047] like Figure 2 and Figure 5 As shown, the spraying assembly 20 includes a rotating shaft 21 rotatably mounted on a storage cylinder 10. A set of connecting plates 22 are fixedly mounted on the rotating shaft 21. Each connecting plate 22 is fixedly mounted with an installation cylinder 23. A movable cylinder 25 is slidably mounted inside the installation cylinder 23. A first spring 27 is fixedly mounted on the movable cylinder 25. The end of the first spring 27 away from the movable cylinder 25 is fixedly connected to the inner wall of the installation cylinder 23. A conical connector 26 is fixedly mounted on the movable cylinder 25. A conical hole 24 is opened on the storage cylinder 10 to cooperate with the conical connector 26. The conical hole 24 communicates with the inside of the storage cylinder 10. A nozzle 28 is fixedly mounted on the installation cylinder 23. The spraying range and accuracy of each nozzle 28 increase sequentially in a clockwise direction.

[0048] When it is necessary to switch nozzles 28, the connecting plate 22 is rotated synchronously by rotating the shaft 21. The connecting plate 22 drives the mounting cylinder 23 and the movable cylinder 25 and nozzles 28 mounted on it to rotate together, realizing the switching of different nozzle positions 28. When the target nozzle 28 rotates to the position corresponding to the conical hole 24, the movable cylinder 25 moves towards the storage cylinder 10 under the elastic thrust of the first spring 27, causing the conical connector 26 to fit tightly with the conical hole 24, forming a sealed communication structure. At this time, the liquid medicine in the storage cylinder 10 can pass through the conical hole 24. 4. The solution enters the movable cylinder 25 and is then sprayed out through the nozzle 28. The elastic force of the first spring 27 ensures that the conical connector 26 and the conical hole 24 are always tightly fitted to prevent leakage of the solution. At the same time, the fit of the conical structure improves the sealing performance and positioning accuracy of the connection. The spraying range and precision of different nozzles 28 increase sequentially in a clockwise direction. They can be quickly switched by rotating the shaft 21 to meet different clinical needs from precise spot spraying to large-area spraying, improve operational efficiency, and ensure stable sealing performance during switching, thus ensuring the continuity and stability of the solution spraying.

[0049] like Figure 2 As shown, the drive assembly 30 includes an electric telescopic rod 31 fixedly installed inside the storage cylinder 10. A piston 32 is fixedly installed on the output end of the electric telescopic rod 31. The telescopic movement of the output end of the electric telescopic rod 31 drives the piston 32 to reciprocate linearly along the inner wall of the storage cylinder 10. When it is necessary to spray the medicine, the electric telescopic rod 31 drives the piston 32 to move towards the conical hole 24. The piston 32 generates a stable squeezing force on the medicine in the storage cylinder 10, so that the medicine enters the nozzle 28 through the conical hole 24 and the movable cylinder 25 under pressure, and finally forms a uniform spray. The telescopic speed and stroke of the electric telescopic rod 31 can be precisely controlled. Compared with manual drive, it can avoid the fluctuation of the spray volume caused by uneven force, making the dosage of each spray more accurate. At the same time, the stable squeezing force ensures that the spray pressure is consistent, making the atomization effect of the medicine uniform, improving the adhesion effect of the anesthetic and the onset speed of the anesthesia.

[0050] As shown in the figure Figure 3 and 4 As shown, the piston 32 has a pair of mounting grooves 33, and a second spring 34 is fixedly installed in each mounting groove 33. A limit rod 35 is fixedly installed on each of the second springs 34. Several sets of limit cylinders 36 are fixedly installed on the storage cylinder 10. A limit hole 37 that cooperates with the limit rod 35 is opened in the limit cylinder 36. A threaded rod 38 is threadedly connected to the limit cylinder 36. A sealing plate 39 is fixedly installed at one end of the threaded rod 38 located in the limit cylinder 36.

[0051] During the movement of piston 32, the second spring 34 always exerts an elastic thrust on the limiting rod 35, causing the limiting rod 35 to maintain an outward extension tendency. When piston 32 moves to the position corresponding to the set dose, the limiting rod 35, under the action of the second spring 34, engages in the limiting hole 37 of the corresponding limiting cylinder 36 on the storage cylinder 10, thereby mechanically limiting piston 32 and preventing piston 32 from moving further, thus accurately controlling the spraying dose. By rotating the threaded rod 38, the sealing plate 39 can be moved within the limiting cylinder 36. When the sealing plate 39 pushes the limiting rod 35 back into the mounting groove 33, the output end of the electric telescopic rod 31 can retract. The elastic action of the second spring 34 ensures that the limiting rod 35 and the limiting hole 37 are tightly engaged, avoiding accidental movement of piston 32 during spraying that could lead to dose deviation. The mechanical limiting structure, combined with the precise drive of the electric telescopic rod 31, provides double protection for the accuracy of the spraying dose.

[0052] like Figure 6 As shown, the adding component 40 includes an adding cylinder 41 fixedly installed on the storage cylinder 10. A filter ring 42 is fixedly installed inside the adding cylinder 41, and an inlet chamber 45 is opened inside the adding cylinder 41. When adding anesthetic solution, the anesthetic solution is injected into the inlet chamber 45 of the adding cylinder 41. Under pressure, the solution flows towards the storage cylinder 10. When it flows through the filter ring 42, the filter material of the filter ring 42 intercepts particulate impurities in the solution. The filtered pure solution enters the storage cylinder 10. The inlet chamber 45 provides a guiding channel for the flow of the solution, preventing the solution from overflowing, ensuring sufficient filtration, effectively preventing impurities from entering the small channels of the spraying component 20, avoiding spray interruption or uneven spraying caused by clogging of the spraying component 20, ensuring long-term stable operation of the device, and at the same time, the pure solution can also reduce the stimulation of impurities on the anesthetized site of the patient, improving the safety of clinical use.

[0053] For example Figure 6 As shown, a third spring 44 is fixedly installed on the filter ring 42, and a movable column 43 is fixedly installed on the third spring 44;

[0054] When the liquid medicine flows through the filter ring 42 for filtration, some fine impurities may adhere to the surface of the filter media of the filter ring 42. Long-term use can easily lead to clogging of the filter media and affect the flow rate of the liquid medicine. Under the elastic action of the third spring 44, the movable column 43 always maintains a slight pressing state on the filter media of the filter ring 42. With the flow of the liquid medicine and the slight vibration of the device, the third spring 44 will drive the movable column 43 to produce a small reciprocating motion, periodically tapping or scraping the filter media of the filter ring 42. This motion can shake off or scrape off the impurities attached to the surface of the filter media, avoid the accumulation of impurities and blockage of the filter media pores, ensure that the liquid medicine can continuously and smoothly pass through the filter ring 42, maintain a stable liquid inlet speed, and ensure the long-term filtration effect of the additive component 40.

[0055] like Figure 7As shown, the stabilizing component 50 includes a stabilizing frame 51 disposed above the storage cylinder 10 (the stabilizing frame 51 is installed at a position higher than the operating table). A pull rod 52, which is limited by the locking component 60, is slidably installed inside the stabilizing frame 51. A rotating rod 53, whose rotation is limited by the damping component 70, is rotatably installed inside the pull rod 52. A connecting frame 54 is fixedly installed on the rotating rod 53. The connecting frame 54 is rotatably installed on the limiting frame 55. The limiting frame 55 is fixedly installed on the storage cylinder 10.

[0056] The stabilizer 51 provides a fixed support reference for the entire stabilizer assembly 50. The pull rod 52 can slide within the stabilizer 51 to adjust the distance between the storage cylinder 10 and the stabilizer 51, adapting to different operating heights and surgical positions. The locking assembly 60 limits and fixes the sliding position of the pull rod 52 to ensure that the adjusted position of the pull rod 52 remains stable, preventing the pull rod 52 from accidentally sliding during spraying and causing the storage cylinder 10 to shift position. The rotating rod 53 can rotate within the pull rod 52. By rotating the rotating rod 53, the angle of the storage cylinder 10 can be adjusted, allowing the nozzle 28 to be accurately aimed at the anesthesia target site. The damping component 70 provides moderate resistance to the rotation of the rotating rod 53, preventing the rotating rod 53 from rotating freely and causing the storage cylinder 10 to lose angle control. This allows medical personnel to easily fix the storage cylinder 10 at the required angle. The connector fixes the rotating rod 53 to the connecting frame 54. The connecting frame 54 is rotatably mounted on the limiting frame 55, further improving the flexibility of the angle adjustment of the storage cylinder 10. At the same time, the limiting frame 55 provides stable rotation support for the connecting frame 54. Through the sliding adjustment of the pull rod 52 and the rotation adjustment of the rotating rod 53, combined with the limiting fixation of the locking component 60 and the damping component 70, the stabilizing component 50 can adjust the position and angle of the storage cylinder 10 in all directions and remain stable after adjustment. This effectively counteracts the hand tremors of medical personnel during operation and improves the stability and accuracy of the spraying process.

[0057] like Figure 7 As shown, the limiting frame 55 has an annular groove 56, and a movable plate 57 is slidably installed in the annular groove 56. The movable plate 57 is fixedly installed on the connecting frame 54, and a bolt 58 is threadedly connected to the movable plate 57.

[0058] The annular groove 56 on the limiting frame 55 provides an annular sliding track for the movable plate 57. The movable plate 57 is fixedly connected to the connecting frame 54. When the connecting frame 54 is rotated, the movable plate 57 will slide synchronously along the annular groove 56 to realize the rotation adjustment of the storage cylinder 10, expand the spray coverage of the device, and adapt to anesthesia sites in different directions. After the storage cylinder 10 is rotated to the required position, the bolt 58 on the movable plate 57 is tightened. The end of the bolt 58 will abut tightly against the inner wall of the annular groove 56. The position of the movable plate 57 is fixed by the friction between the bolt 58 and the inner wall of the annular groove 56, thereby locking the rotation angle of the connecting frame 54 and the storage cylinder 10. This prevents the storage cylinder 10 from rotating and shifting due to external force during the operation, ensuring the accuracy of the spray direction and allowing medical staff to focus more on the surgical operation.

[0059] like Figure 8 As shown, the locking assembly 60 includes several slots 61 formed in the stabilizer 51, the pull rod 52 has an installation cavity 62, an electromagnet 63 is provided in the installation cavity 62, a fourth spring 64 is fixedly installed on the electromagnet 63, and a locking block 65 is fixedly installed on the fourth spring 64. The locking block 65 is adapted to the slots 61.

[0060] Several slots 61 within the stabilizer 51 are distributed along the sliding direction of the pull rod 52, providing multiple limit positions for the locking block 65. The mounting cavity 62 on the pull rod 52 provides mounting space for the electromagnet 63, the fourth spring 64, and the locking block 65. Under normal conditions, the fourth spring 64 is in a naturally extended state, pushing the locking block 65 into the slot 61 of the stabilizer 51. The mechanical engagement between the locking block 65 and the slot 61 locks the position of the pull rod 52, preventing it from sliding freely. When the position of the pull rod 52 needs to be adjusted, the electromagnet 63 is energized, generating an electromagnetic attraction that overcomes the elastic force of the fourth spring 64, drawing the locking block 65 into the mounting cavity. Within 62, the locking block 65 disengages from the slot 61, allowing the pull rod 52 to slide freely within the stabilizer 51. After adjusting to the target position, the power supply to the electromagnet 63 is cut off, the electromagnetic attraction disappears, and the fourth spring 64 returns to its extended state, pushing the locking block 65 again into the corresponding slot 61, thus relocking the pull rod 52. This allows for quick unlocking and locking of the pull rod 52. The design of multiple slots 61 allows for more precise adjustment of the pull rod 52's position, adapting to different operational needs. At the same time, the tight engagement between the locking block 65 and the slot 61 ensures that the pull rod 52 is stable and reliable after locking, preventing the device's stability from being affected by the sliding of the pull rod 52 during spraying.

[0061] like Figure 9As shown, the damping assembly 70 includes a fixed cylinder 71 fixedly installed on the pull rod 52, a fifth spring 72 fixedly installed inside the fixed cylinder 71, and an abutment post 73 fixedly installed on the fifth spring 72. The end of the abutment post 73 away from the fifth spring 72 abuts against the rotating rod 53.

[0062] The fixing cylinder 71 on the pull rod 52 provides a fixed mounting carrier for the fifth spring 72 and the abutment post 73. The fifth spring 72 is in a compressed state, continuously applying elastic pressure towards the rotating rod 53 to the abutment post 73, so that the end of the abutment post 73 is always in close contact with the surface of the rotating rod 53. When the rotating rod 53 rotates, sliding friction is generated between the abutment post 73 and the surface of the rotating rod 53. This friction forms a damping force that hinders the rotation of the rotating rod 53. The compressed state of the fifth spring 72 ensures that the magnitude of the damping force is stable. The existence of the damping force can prevent the rotating rod 53 from rotating freely without external control, allowing medical staff to accurately control the rotation speed and angle when adjusting the rotating rod 53 (i.e., adjusting the angle of the storage cylinder 10), stabilizing the storage cylinder 10 in the required position, and preventing the nozzle 28 from deviating from the target anesthesia site due to the rotating rod 53 rotating too fast or out of control. At the same time, the stable damping force can also offset the effect of slight vibration of the device on the rotating rod 53 during the spraying process, further improving the angular stability of the storage cylinder 10 and ensuring the accuracy of the drug spraying.

[0063] The specific workflow of the technical solution provided by this invention is as follows:

[0064] The anesthetic solution is replenished into the storage cylinder 10 using the addition component 40. The solution flows through the inlet chamber 45 of the addition cylinder 41 and passes through the filter ring 42. The filter ring 42 intercepts particulate impurities in the solution to prevent clogging of the subsequent spraying component 20. During the filtration process, the third spring 44 drives the movable column 43 to reciprocate slightly, cleaning the impurities attached to the surface of the filter ring 42 and ensuring smooth liquid inflow. The filtered pure solution is stored in the storage cylinder 10.

[0065] According to the needs of the anesthesia scenario, the rotating shaft 21 is rotated, which drives the mounting cylinder 23 and the nozzle 28 to rotate through the connecting plate 22, so as to switch the nozzles 28 with different precision (spraying range). When the target nozzle 28 is aligned with the conical hole 24 of the storage cylinder 10, the first spring 27 pushes the movable cylinder 25 to move, so that the conical connector 26 fits tightly with the conical hole 24 to form a sealed communication channel, which is ready for the spraying of the medicine.

[0066] The electric telescopic rod 31 of the drive assembly 30 is preset with a telescopic stroke, and the threaded rod 38 in the upper limit cylinder 36 is adjusted to a suitable position. This causes the sealing plate 39 to change the position of the limit hole 37. When the piston 32 moves, the second spring 34 pushes the limit rod 35. When the piston 32 reaches the set stroke position, the limit rod 35 is engaged in the corresponding limit hole 37, thereby achieving precise locking of the spray dosage and avoiding dosage deviation.

[0067] The position and angle of the device are adjusted using the stabilizing component 50. The sliding of the pull rod 52 within the stabilizing frame 51 is controlled by the locking component 60 to adjust the distance between the storage cylinder 10 and the stabilizing frame 51 to match the operating height. The electromagnet 63 is energized to unlock the locking block 65. After the pull rod 52 is slid to the target position, the power is turned off. The fourth spring 64 pushes the locking block 65 into the locking slot 61 to lock the pull rod 52. The rotating rod 53 is rotated to adjust the angle of the storage cylinder 10. The fifth spring 72 of the damping component 70 pushes the abutment post 73 to abut against the rotating rod 53, generating a stable damping force to ensure that the rotating rod 53 rotates smoothly and controllably. At the same time, the connecting frame 54 drives the movable plate 57 to slide along the annular groove 56 of the limiting frame 55 to realize the rotation of the storage cylinder 10. After adjusting to the appropriate spraying direction, the bolt 58 is tightened to lock the movable plate 57 and fix the angle of the storage cylinder 10.

[0068] The electric telescopic rod 31 of the drive assembly 30 is activated, and its output end pushes the piston 32 to move stably along the inner wall of the storage cylinder 10, generating uniform extrusion pressure on the liquid medicine. Under pressure, the liquid medicine enters the nozzle 28 through the conical hole 24 and the movable cylinder 25. After being atomized by the nozzle 28, it is accurately sprayed onto the target anesthesia site. During the spraying process, the stabilizing assembly 50 suppresses the shaking of the device throughout the process, the drive assembly 30 ensures uniform spray volume, and the spraying assembly 20 ensures accurate spray coverage. All components work together to achieve a stable and efficient local anesthesia effect.

[0069] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A local anesthetic spraying device for improving operational stability in anesthesiology, characterized in that: The device includes a storage cylinder for holding anesthetic liquid, a spraying assembly on the storage cylinder, the spraying assembly being able to switch between nozzles of different precision; a driving assembly disposed inside the storage cylinder, an adding assembly disposed on the storage cylinder, the adding assembly adding anesthetic liquid into the storage cylinder, and a stabilizing assembly disposed on the storage cylinder.

2. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 1, characterized in that, The spraying assembly includes a rotating shaft fixedly mounted on a storage cylinder. A set of connecting plates is fixedly mounted on the rotating shaft, and each connecting plate is fixedly mounted with a mounting cylinder. A movable cylinder is slidably mounted inside the mounting cylinder. A first spring is fixedly mounted on the movable cylinder, and the end of the first spring away from the movable cylinder is fixedly connected to the inner wall of the mounting cylinder. A tapered connector is fixedly mounted on the movable cylinder. The storage cylinder has a tapered hole that mates with the tapered connector and communicates with the inside of the storage cylinder. Spray nozzles are fixedly mounted on the mounting cylinder, and the spraying range and accuracy of each spray nozzle increase sequentially in a clockwise direction.

3. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 2, characterized in that, The drive assembly includes an electric telescopic rod fixedly installed inside the storage cylinder, and a piston is fixedly installed on the output end of the electric telescopic rod.

4. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 3, characterized in that, The piston has a pair of mounting slots, and a second spring is fixedly installed in each mounting slot. A limit rod is fixedly installed on each of the second springs. Several sets of limit cylinders are fixedly installed on the storage cylinder. A limit hole that cooperates with the limit rod is opened in the limit cylinder. A threaded rod is threadedly connected to the limit cylinder. A sealing plate is fixedly installed at one end of the threaded rod located inside the limit cylinder.

5. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 4, characterized in that, The addition component includes an addition cylinder fixedly installed on the storage cylinder, a filter ring fixedly installed inside the addition cylinder, and an inlet chamber opened inside the addition cylinder.

6. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 5, characterized in that, A third spring is fixedly installed on the filter ring, and a movable column is fixedly installed on the third spring.

7. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 6, characterized in that, The stabilizing component includes a stabilizing frame disposed above the storage cylinder. A pull rod, which is limited by a locking component, is slidably installed inside the stabilizing frame. A rotating rod, whose rotation is limited by a damping component, is rotatably installed inside the pull rod. A connecting piece is fixedly installed on the rotating rod. The connecting frame is rotatably installed on the limiting frame. The limiting frame is fixedly installed on the storage cylinder.

8. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 7, characterized in that, The limiting frame has an annular groove, and a movable plate is slidably installed in the annular groove. The movable plate is fixedly installed on the connecting frame, and bolts are threadedly connected to the movable plate.

9. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 8, characterized in that, The locking assembly includes several slots formed in the stabilizer frame. The pull rod has an installation cavity, an electromagnet is provided in the installation cavity, a fourth spring is fixedly installed on the electromagnet, and a locking block is fixedly installed on the fourth spring. The locking block is adapted to the slot.

10. The local anesthetic spraying device for improving operational stability in anesthesiology according to claim 9, characterized in that, The damping assembly includes a fixed cylinder fixedly installed on the tie rod, a fifth spring fixedly installed inside the fixed cylinder, an abutment post fixedly installed on the fifth spring, and the end of the abutment post away from the fifth spring abutting against the rotating rod.

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