Accurate dosing equipment for atomization treatment in thoracic surgery department

Abstract

The invention discloses precise dosing equipment for thoracic surgery nebulization treatment, and belongs to the technical field of thoracic surgery nebulization treatment.The precise dosing equipment comprises a device shell, a display screen is arranged on the outer surface of the device shell, a butt joint pipeline is arranged at the top end of the device shell, a gas collecting hood is installed at one end of the butt joint pipeline, and the gas collecting hood is arranged in the device shell; a first filter screen is arranged on the inner surface of the device shell, and a second filter screen is installed below the first filter screen. A worm-worm gear-threaded rod transmission structure is adopted, the extrusion plate can be driven to linearly slide by rotating the handle, accurate control over the pushing dosage and speed of medicine in the injector is achieved, it is ensured that the medicine is conveyed at a constant speed and quantitatively, and the dosage requirements of different thoracic surgery patients are met; meanwhile, the transmission structure is stable in operation, the problem of uneven atomization concentration caused by medicine conveying fluctuation can be avoided, the medicine absorption efficiency is remarkably improved, and the treatment effect is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of thoracic surgical nebulization therapy technology, specifically referring to a precise drug delivery device for thoracic surgical nebulization therapy. Background Technology

[0002] In thoracic surgery, nebulized drug delivery is a key adjunctive treatment for diseases such as post-lung cancer surgery, COPD complicated with pulmonary infection, and atelectasis after chest trauma. Its core objective is to precisely deliver drugs into the airways and lungs of patients by nebulizing them into tiny particles, thereby achieving therapeutic effects such as thinning sputum, reducing inflammation and relieving asthma, and promoting the recovery of lung function.

[0003] However, current clinically used nebulized drug delivery devices still have many technical shortcomings, making it difficult to meet the precision treatment needs of thoracic surgery patients. The specific pain points are as follows: 1. Insufficient drug delivery accuracy and poor controllability: Traditional nebulizers often use direct pouring or simple syringe delivery methods, lacking a stable transmission control mechanism, making it impossible to accurately regulate the drug delivery dosage and speed. Thoracic surgery patients are weak post-operatively, and their tolerance to drug dosage varies greatly; insufficient dosage will lead to ineffective treatment, while excessive dosage may cause adverse reactions. Simultaneously, non-uniform drug delivery can cause fluctuations in nebulized concentration, affecting the airway's absorption efficiency and reducing treatment effectiveness. 2. Different thoracic surgery patients have different airway conditions (such as different degrees of postoperative airway edema and different sputum viscosity), and their needs for nebulized drug particle size also vary. Traditional nebulizer filters are mostly designed with fixed pore sizes, which cannot adjust the nebulized particle size according to the patient's actual situation. Overly large particles are prone to depositing at the airway inlet and cannot reach the lesion site, while overly small particles may be lost with exhalation, reducing drug utilization.

[0004] Based on the aforementioned clinical pain points, the development of a precise drug delivery device for thoracic surgical nebulization therapy that is accurate and controllable in drug delivery, safe and hygienic to use, has flexibly adjustable atomized particle size, and is highly stable has become an urgent need to improve the efficacy of thoracic surgical nebulization therapy and ensure patient safety. Summary of the Invention

[0005] In response to the above situation and to overcome the shortcomings of existing technologies, this invention provides a precise drug delivery device for thoracic surgical nebulization therapy, which effectively solves the problems currently on the market.

[0006] The technical solution adopted by this invention is as follows: This invention proposes a precision drug delivery device for thoracic surgical nebulization therapy, including a device housing. A display screen is provided on the outer surface of the device housing. A docking pipe is provided at the top of the device housing. A gas collecting hood is installed at one end of the docking pipe and is located inside the device housing. A first filter screen is provided on the inner surface of the device housing. A second filter screen is installed below the first filter screen. A rotating shaft is connected to the bottom surface of the first filter screen. A key shaft is installed at the bottom of the rotating shaft. A telescopic spring is connected between the key shaft and the rotating shaft. A driving block is provided at the end of the key shaft away from the rotating shaft. A limit ring is installed at the bottom of the device housing.

[0007] Furthermore, the outer surface of the device housing is provided with a drug inlet housing, the outer surface of the drug inlet housing is provided with a fixed base, the fixed base is provided with a rotation limit plate, the upper surface of the drug inlet housing is installed with a cover plate, the outer surface of the drug inlet housing is provided with a dustproof cover, the inside of the drug inlet housing is provided with a compression plate, a worm gear is connected to the dustproof cover, a worm wheel is installed below the worm gear, a threaded rod is installed on the worm wheel, and a handle is installed at one end of the worm gear.

[0008] Furthermore, the display screen is fixedly connected to the outer surface of the device housing, the docking pipe passes through and is fixedly connected to the middle position of the top of the device housing, and the gas collection hood is fixedly connected to one end of the docking pipe.

[0009] Furthermore, the first filter screen is rotatably connected to the inner surface of the device housing, the second filter screen is fixedly connected to the inner surface of the device housing, and the upper surface of the second filter screen abuts against the bottom surface of the first filter screen.

[0010] Furthermore, the rotating shaft is fixedly connected to the bottom surface of the first filter screen, the key shaft is slidably connected to the rotating shaft, one end of the telescopic spring is fixedly connected to the rotating shaft, and the other end of the telescopic spring is fixedly connected to the key shaft.

[0011] Furthermore, the drive block is fixedly connected to the key shaft, the telescopic springs are symmetrically arranged at the bottom of the device housing and fixedly connected to the device housing, and the outer surface of the key shaft and the inner surface of the limiting ring are both provided with toothed structures.

[0012] Furthermore, the drug inlet shell is embedded in and fixedly connected to the device shell, and the fixing base is symmetrically arranged on the outer surface of the drug inlet shell, and the fixing base is fixedly connected to the drug inlet shell.

[0013] Furthermore, the rotating limiting plate is rotatably connected to the fixed base, and the cover plate is detachably connected to the drug inlet shell.

[0014] Furthermore, the dustproof cover is fixedly connected to the drug inlet shell, the extrusion plate is slidably connected to the inside of the drug inlet shell, the worm gear passes through and is rotatably connected to the dustproof cover, and the worm wheel meshes with and is rotatably connected to the worm gear and the worm wheel is rotatably connected to the dustproof cover.

[0015] Furthermore, the threaded rod passes through and is keyed to the worm gear, and the handle is fixedly connected to the worm.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The device adopts a worm gear-worm wheel-threaded rod transmission structure. By rotating the handle, the squeezing plate can be driven to slide linearly, so as to achieve precise control of the drug delivery dose and speed in the syringe, ensuring uniform and quantitative drug delivery, and adapting to the dosage needs of different thoracic surgery patients. At the same time, the transmission structure operates stably, which can avoid the problem of uneven atomization concentration caused by drug delivery fluctuations, significantly improve drug absorption efficiency, and ensure treatment effect. (2) By setting a rotatable first filter and a fixed second filter, and cooperating with the adjustment mechanism consisting of a key shaft, a drive block, and a telescopic spring, the size of the ventilation mesh can be flexibly adjusted. Pulling down the drive block releases the constraint of the limiting ring. Rotating the drive block drives the first filter to rotate. By changing the degree of overlap between the meshes of the first and second filters, the size of the atomized particles can be adjusted to suit the airway conditions of different patients. After adjustment, the telescopic spring can drive the drive block to automatically reset, and the limiting ring restricts the rotation of the drive block again, ensuring the stability of the structure after adjustment, avoiding spontaneous displacement during use, and maintaining a stable atomization effect. Attached Figure Description

[0017] Figure 1 The three-dimensional structure of the thoracic surgery nebulization therapy precision drug delivery device proposed in this invention. Figure 1 ; Figure 2 The three-dimensional structure of the thoracic surgery nebulization therapy precision drug delivery device proposed in this invention. Figure 2 ; Figure 3 The three-dimensional structure of the thoracic surgery nebulization therapy precision drug delivery device proposed in this invention. Figure 3 ; Figure 4 The three-dimensional structure of the thoracic surgery nebulization therapy precision drug delivery device proposed in this invention. Figure 4 ; Figure 5 The three-dimensional structure of the thoracic surgery nebulization therapy precision drug delivery device proposed in this invention. Figure 5 .

[0018] The components include: 1. Device housing; 2. Display screen; 3. Connecting pipe; 4. Gas collection hood; 5. First filter screen; 6. Second filter screen; 7. Rotating shaft; 8. Key shaft; 9. Telescopic spring; 10. Drive block; 11. Limiting ring; 12. Drug inlet housing; 13. Fixed base; 14. Rotation limit plate; 15. Cover plate; 16. Dustproof cover; 17. Extrusion plate; 18. Worm gear; 19. Worm wheel; 20. Threaded rod; 21. Handle.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1-5 As shown, the present invention proposes a precision drug delivery device for thoracic surgery nebulization therapy, including a device housing 1, a display screen 2 on the outer surface of the device housing 1, a docking pipe 3 at the top of the device housing 1, a gas collection hood 4 installed at one end of the docking pipe 3 and disposed inside the device housing 1, a first filter screen 5 on the inner surface of the device housing 1, a second filter screen 6 installed below the first filter screen 5, a rotating shaft 7 connected to the bottom surface of the first filter screen 5, a key shaft 8 installed at the bottom of the rotating shaft 7, a telescopic spring 9 connected between the key shaft 8 and the rotating shaft 7, a drive block 10 at the end of the key shaft 8 away from the rotating shaft 7, and a limit ring 11 installed at the bottom of the device housing 1.

[0023] The outer surface of the device housing 1 is provided with a drug inlet housing 12, the outer surface of the drug inlet housing 12 is provided with a fixed base 13, the fixed base 13 is provided with a rotation limit plate 14, the upper surface of the drug inlet housing 12 is provided with a cover plate 15, the outer surface of the drug inlet housing 12 is provided with a dustproof cover 16, the inside of the drug inlet housing 12 is provided with a compression plate 17, the dustproof cover 16 is connected to a worm gear 18, the lower part of the worm gear 18 is provided with a worm wheel 19, the worm wheel 19 is provided with a threaded rod 20, and one end of the worm gear 18 is provided with a handle 21.

[0024] The display screen 2 is fixedly connected to the outer surface of the device housing 1, the docking pipe 3 passes through and is fixedly connected to the middle position of the top of the device housing 1, and the gas collection hood 4 is fixedly connected to one end of the docking pipe 3.

[0025] The first filter screen 5 is rotatably connected to the inner surface of the device housing 1, and the second filter screen 6 is fixedly connected to the inner surface of the device housing 1, with the upper surface of the second filter screen 6 abutting against the bottom surface of the first filter screen 5.

[0026] The rotating shaft 7 is fixedly connected to the bottom surface of the first filter screen 5, the key shaft 8 is slidably connected to the rotating shaft 7, one end of the telescopic spring 9 is fixedly connected to the rotating shaft 7, and the other end of the telescopic spring 9 is fixedly connected to the key shaft 8.

[0027] The drive block 10 is fixedly connected to the key shaft 8, and the telescopic springs 9 are symmetrically arranged at the bottom of the device housing 1. The telescopic springs 9 are fixedly connected to the device housing 1, and the outer surface of the key shaft 8 and the inner surface of the limiting ring 11 are both provided with toothed structures.

[0028] The drug inlet shell 12 is embedded in and fixedly connected to the device shell 1, and the fixed base 13 is symmetrically arranged on the outer surface of the drug inlet shell 12, and the fixed base 13 is fixedly connected to the drug inlet shell 12.

[0029] The rotating limit plate 14 is rotatably connected to the fixed base 13, and the cover plate 15 is detachably connected to the drug inlet shell 12.

[0030] The dust cover 16 is fixedly connected to the drug inlet shell 12, the extrusion plate 17 is slidably connected to the inside of the drug inlet shell 12, the worm gear 18 passes through and is rotatably connected to the dust cover 16, and the worm wheel 19 is meshed with and connected to the worm gear 18, and the worm wheel 19 is rotatably connected to the dust cover 16.

[0031] The threaded rod 20 passes through and is keyed to the worm gear 19, and the handle 21 is fixedly connected to the worm 18.

[0032] In practical use, open the cover 15 on the drug inlet housing 12, insert the syringe for thoracic surgery nebulized drugs into the drug inlet housing 12, close the cover 15, and rotate the rotation limit plate 14 on the fixed base 13 to limit and fix the cover 15 to prevent drug leakage. The operator turns the handle 21 to drive the worm gear 18 to rotate. Through the meshing transmission between the worm gear 18 and the worm wheel 19, the worm wheel 19 is driven to rotate. Since the threaded rod 20 and the worm wheel 19 are keyed, when the worm wheel 19 rotates, it drives the threaded rod 20 to rotate synchronously, which in turn pushes the extrusion plate 17, which cooperates with the threaded rod 20, to slide inside the drug inlet housing 12. Through the linear displacement of the extrusion plate 17, the drug delivery dosage and speed are precisely controlled to achieve quantitative and uniform drug delivery. The dust cover 16 can effectively block external dust from entering the drug inlet housing 12 and avoid drug contamination.

[0033] After the drug is atomized, the resulting aerosol enters the device housing 1 through the connecting pipe 3. It first passes through a double-layer filtration system of the first filter 5 and the second filter 6 to remove large particles and incompletely atomized drug particles, ensuring that the aerosol entering the patient's airway is fine and uniform. When it is necessary to adjust the size of the atomized drug, the drive block 10 is pulled down to separate it from the limiting ring 11. At this time, the drive block 10 can rotate normally. The drive block 10 drives the rotating shaft 7 to rotate through the key shaft 8, which in turn causes the first filter 5 to rotate on the upper surface of the second filter 6, changing the size of the ventilation mesh to suit the patient's actual needs. After the adjustment is completed, the drive block 10 is released, and it resets under the action of the telescopic spring 9. The limiting ring 11 then restricts the rotation of the drive block 10 again, preventing the drive block 10 from rotating on its own during the use of the device.

[0034] The above is the overall workflow of this invention. You can repeat this step the next time you use it. The actual operation process is very simple and easy.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A precision drug delivery device for thoracic surgical nebulization therapy, characterized in that: The device includes a housing (1), on the outer surface of which a display screen (2) is provided. A docking pipe (3) is provided at the top of the housing (1). A gas collection hood (4) is installed at one end of the docking pipe (3) and is located inside the housing (1). A first filter screen (5) is provided on the inner surface of the housing (1). A second filter screen (6) is installed below the first filter screen (5). A rotating shaft (7) is connected to the bottom surface of the first filter screen (5). A key shaft (8) is installed at the bottom of the rotating shaft (7). A telescopic spring (9) is connected between the key shaft (8) and the rotating shaft (7). A drive block (10) is provided at the end of the key shaft (8) away from the rotating shaft (7). A limit ring (11) is installed at the bottom of the housing (1).

2. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 1, characterized in that: The outer surface of the device housing (1) is provided with a drug inlet housing (12), the outer surface of the drug inlet housing (12) is provided with a fixed base (13), the fixed base (13) is provided with a rotation limit plate (14), the upper surface of the drug inlet housing (12) is provided with a cover plate (15), the outer surface of the drug inlet housing (12) is provided with a dustproof cover (16), the inside of the drug inlet housing (12) is provided with a compression plate (17), the dustproof cover (16) is connected to a worm gear (18), a worm wheel (19) is installed below the worm gear (18), a threaded rod (20) is installed on the worm wheel (19), and a handle (21) is installed at one end of the worm gear (18).

3. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 2, characterized in that: The display screen (2) is fixedly connected to the outer surface of the device housing (1), the docking pipe (3) passes through and is fixedly connected to the middle position of the top of the device housing (1), and the gas collection hood (4) is fixedly connected to one end of the docking pipe (3).

4. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 3, characterized in that: The first filter screen (5) is rotatably connected to the inner surface of the device housing (1), and the second filter screen (6) is fixedly connected to the inner surface of the device housing (1), with the upper surface of the second filter screen (6) abutting against the bottom surface of the first filter screen (5).

5. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 4, characterized in that: The rotating shaft (7) is fixedly connected to the bottom surface of the first filter screen (5), the key shaft (8) is slidably connected to the rotating shaft (7), one end of the telescopic spring (9) is fixedly connected to the rotating shaft (7), and the other end of the telescopic spring (9) is fixedly connected to the key shaft (8).

6. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 5, characterized in that: The drive block (10) is fixedly connected to the key shaft (8), the telescopic spring (9) is symmetrically arranged at the bottom of the device housing (1), and the telescopic spring (9) is fixedly connected to the device housing (1). The outer surface of the key shaft (8) and the inner surface of the limiting ring (11) are both provided with toothed structures.

7. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 6, characterized in that: The drug inlet shell (12) is embedded in and fixedly connected to the device shell (1), and the fixed base (13) is symmetrically arranged on the outer surface of the drug inlet shell (12), and the fixed base (13) is fixedly connected to the drug inlet shell (12).

8. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 7, characterized in that: The rotating limiting plate (14) is rotatably connected to the fixed base (13), and the cover plate (15) is detachably connected to the drug inlet shell (12).

9. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 8, characterized in that: The dust cover (16) is fixedly connected to the drug inlet shell (12), the extrusion plate (17) is slidably connected to the inside of the drug inlet shell (12), the worm (18) passes through and is rotatably connected to the dust cover (16), the worm wheel (19) meshes with the worm (18), and the worm wheel (19) is rotatably connected to the dust cover (16).

10. The precision drug delivery device for thoracic surgical nebulization therapy according to claim 9, characterized in that: The threaded rod (20) passes through and is keyed to the worm gear (19), and the handle (21) is fixedly connected to the worm (18).

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