Dual-sterilization integrated sterile disinfection applicator

Abstract

The invention discloses a dual-sterilization integrated sterile disinfection applicator, and relates to the technical field of disinfection, the dual-sterilization integrated sterile disinfection applicator comprises a medicine storage cylinder for storing a disinfectant, the outer surface of the medicine storage cylinder is provided with an adjustable pressing discharge mechanism, the bottom end of the medicine storage cylinder is provided with an opening and closing butt joint mechanism, and the opening and closing butt joint mechanism is provided with an opening and closing mechanism. A first medicine applying brush is arranged at the bottom end of the opening and closing butt joint mechanism, and a brush head standby mechanism is arranged on the outer surface of the medicine storage cylinder. According to the dual-sterilization integrated sterile disinfection applicator, by arranging the adjustable pressing discharging mechanism, standardized control over the discharging amount each time is achieved, and the problems that in the using process of an existing applicator, when an operator presses a connecting plate, the moving distance of the connecting plate cannot be accurately controlled, and when the pressing force is too large, the moving plate moves excessively, and the working efficiency is high are solved. The problems that a large amount of medicine can rapidly flow out, medicine liquid is prone to being wasted, and the operation environment or clothes can be polluted are solved.

Description

Technical Field

[0001] This invention relates to the field of disinfection technology, specifically to a dual-sterilization integrated aseptic disinfection applicator. Background Technology

[0002] In surgical procedures, aseptic disinfection of the surgical area is a crucial step in preventing postoperative infection. The effectiveness of disinfection directly affects the success rate of the surgery and the patient's postoperative recovery. When disinfecting the skin, it is necessary to apply disinfectant solution to the skin using an applicator.

[0003] For example, the Chinese announcement number CN220002732U describes an auxiliary skin surface ointment applicator, which states in its specification that "this utility model discloses an auxiliary skin surface ointment applicator, including a medicine tube, a handle fixed to the front side of the medicine tube, a connecting block fixed to one side of the medicine tube, a fixing bolt passing through one side of the connecting block, a support rod movably connected to one side of the fixing bolt, a guide groove formed on one side surface of the support rod, a guide block installed inside the guide groove, a connecting plate fixed to one side of the guide block, and a spring fixed below the connecting plate."

[0004] However, the existing devices have the following shortcomings during use:

[0005] The existing medication applicator works by using a rotating block, a positioning pin, a fixing block, and an application roller. When applying the medication, the operator holds the handle and places the application roller against the skin, rolling it across the skin surface to ensure even application. After application, the application roller can be removed by pulling out the positioning pin for disinfection and cleaning, preventing cross-infection and facilitating multiple uses. However, when the operator presses the connecting plate, it is difficult to precisely control the moving distance of the connecting plate. When the pressing force is too high, the moving plate moves excessively, causing a large amount of medication to gush out rapidly. This not only wastes the medication but may also contaminate the operating environment or clothing.

[0006] Therefore, we propose a dual-sterilization integrated aseptic disinfection applicator to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a dual-sterilization integrated aseptic disinfection applicator. By rotating the drive shaft, the first lead screw is rotated, causing the threaded limiting plate to move up and down along the limiting groove. The limiting plate is sleeved outside the piston rod, which can accurately limit the downward movement distance of the pressing plate and avoid excessive pressing force that would cause a large amount of medicine to flow out. At the same time, the indicator needles on both sides of the limiting plate cooperate with the scale lines on the fixed shell, allowing the operator to intuitively read and set the pressing stroke, realizing standardized control of the dispensing amount for each use, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a dual-sterilization integrated aseptic disinfection applicator, comprising a storage cylinder for storing disinfectant, an adjustable pressing and dispensing mechanism provided on the outer surface of the storage cylinder, an opening and closing docking mechanism provided at the bottom end of the storage cylinder, a first applicator brush provided at the bottom end of the opening and closing docking mechanism, and a brush head spare mechanism provided on the outer surface of the storage cylinder.

[0009] The adjustable pressing and discharging mechanism includes a piston plate slidably connected to the inner side of the medicine storage cylinder. A piston rod is fixedly connected to the top of the piston plate. One end of the piston rod movably passes through the medicine storage cylinder and is fixedly connected to a pressing plate. A return spring is fixedly connected between the piston plate and the medicine storage cylinder, and the return spring is sleeved on the outer surface of the piston rod. A fixed shell is fixedly connected to the outer surface of the medicine storage cylinder. A first lead screw is rotatably connected to the inner side of the fixed shell. A limit groove is opened on one side of the fixed shell. A limit disc is threadedly connected to the outer surface of the first lead screw. The limit disc movably passes through the limit groove and is sleeved on the outer surface of the piston rod. The pressing plate is slidably connected to the limit groove. Two indicator needles are fixedly connected to both sides of the limit disc. Two scale lines are provided on both sides of the fixed shell. A drive shaft for driving the first lead screw to rotate is rotatably connected to the inner side of the fixed shell.

[0010] Preferably, the opening and closing docking mechanism includes an extension rod fixedly connected to the bottom end of the medicine storage cylinder, the first medicine brush being detachably connected to the bottom end of the extension rod, the extension rod having an internal slot and a receiving slot, and the receiving slot having multiple evenly spaced holes on its inner side.

[0011] Preferably, a rotating shaft is rotatably connected to the inner side of the slot, and a rotating disk is fixedly sleeved on the outer surface of the rotating shaft, with a docking hole opened on the top of the rotating disk.

[0012] Preferably, a first connecting pipe is provided at the top inner side of the empty slot, and a second connecting pipe is provided at the bottom inner side of the empty slot. The bottom end of the first connecting pipe is in contact with the top of the rotating disk, and the top end of the second connecting pipe is in contact with the bottom of the rotating disk.

[0013] Preferably, the top end of the first connecting tube passes through the empty slot and the extension rod and is connected to the interior of the medicine storage cylinder, and the bottom end of the second connecting tube passes through the empty slot and the extension rod and is connected to the interior of the receiving slot.

[0014] Preferably, a worm is rotatably connected to the inner side of the slot, and a worm wheel is fixedly sleeved on the outer surface of the rotating shaft, with the worm and the worm wheel meshing together.

[0015] Preferably, one end of the worm gear movably passes through the slot and the extension rod and is equipped with a second rotating cap. An arc-shaped groove is formed on the inner bottom of the extension rod, and a limit rod is slidably connected in the arc-shaped groove. The top end of the limit rod is fixedly connected to the rotating disk.

[0016] Preferably, the spare brush head mechanism includes two U-shaped blocks fixedly connected to the outer surface of the medicine storage cylinder, two second screws threadedly connected to the inner side of the two U-shaped blocks, two clamping plates rotatably connected to one end of the two second screws, two third rotating caps installed at the other end of the two second screws, and two second medicine application brushes disposed between the two clamping plates and the two U-shaped blocks.

[0017] Preferably, the outer surface of the first lead screw is fixedly connected to one end of the drive shaft with two bevel gears, the two bevel gears meshing together, and one end of the drive shaft movably passes through the fixed shell and is equipped with a first rotating cap.

[0018] Preferably, a feeding pipe is fixedly connected to the outer surface of the medicine storage cylinder, a one-way valve is installed on the feeding pipe, a sealing cap is threaded to the outer top of the feeding pipe, and two rubber auxiliary plates are fixedly connected to the outer surface of the medicine storage cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention features an adjustable pressing and dispensing mechanism. Rotating the drive shaft rotates the first lead screw, causing the threaded limiting plate to move up and down along the limiting groove. The limiting plate, fitted over the piston rod, precisely limits the downward movement distance of the pressing plate, preventing excessive pressure from causing a large outflow of medication. Simultaneously, the indicator pins on both sides of the limiting plate align with the scale lines on the fixed shell, allowing operators to intuitively read and set the pressing stroke, achieving standardized control of the dispensing amount for each application. This solves the problem of existing applicators where operators cannot accurately control the movement distance of the connecting plate when pressing it. Excessive pressure can cause the plate to move excessively, leading to a rapid outflow of medication, wasting liquid medication, and potentially contaminating the operating environment or clothing.

[0021] 2. This invention, through its designed opening and closing docking structure, drives the rotating disk to rotate in coordination with the second rotating cap, worm gear, worm wheel, and rotating shaft. When the docking hole on the rotating disk aligns with the first connecting pipe at the top and the second connecting pipe at the bottom, the disinfectant in the storage cylinder can sequentially enter the receiving tank through the first connecting pipe, the docking hole, and the second connecting pipe, and then evenly penetrate to the first coating brush through multiple evenly distributed holes, ensuring uniform coating. When the rotating disk is rotated so that the docking hole deviates from the connecting pipe, the drug delivery can be cut off, preventing drug leakage or contamination during non-operational states. At the same time, the meshing transmission structure of the worm gear and worm wheel has a self-locking characteristic, effectively preventing the rotating disk from rotating on its own due to external vibrations, accidental contact, or other factors during the coating operation, preventing the docking hole from opening or closing accidentally, and ensuring stable drug delivery.

[0022] 3. This invention features a spare brush head mechanism. Two U-shaped blocks on the outer surface of the medicine storage cylinder can respectively store the second medicine brush. Rotating the third rotating cap drives the second lead screw to rotate, causing the clamping plate to move along the inner side of the U-shaped block. This allows for quick clamping or loosening of the second medicine brush, achieving stable storage and convenient retrieval of the spare brush head. After the first medicine brush is used, there is no need to search for a spare brush head; it can be directly removed from the U-shaped block for replacement. This is especially suitable for scenarios such as surgery that require continuous disinfection and medicine application, improving operational efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the main structure of an integrated sterile disinfection applicator with dual sterilization function according to the present invention.

[0024] Figure 2 This is a three-dimensional view of the right side of a dual-sterilization integrated aseptic disinfection applicator according to the present invention;

[0025] Figure 3 This is a perspective view of the bottom structure of an integrated sterile disinfection applicator for dual sterilization according to the present invention.

[0026] Figure 4 This is a perspective view of the rear structure of a dual-sterilization integrated aseptic disinfection applicator according to the present invention.

[0027] Figure 5 This is a three-dimensional view of the U-shaped block in a dual-sterilization integrated aseptic disinfection applicator of the present invention;

[0028] Figure 6 This is a three-dimensional cross-sectional view of the fixing shell in a dual-sterilization integrated aseptic disinfection applicator of the present invention.

[0029] Figure 7 This is a partial three-dimensional cross-sectional view of the medicine storage cylinder in a dual-sterilization integrated aseptic disinfection applicator of the present invention.

[0030] Figure 8This is a three-dimensional cross-sectional view of the extension rod in a dual-sterilization integrated aseptic disinfection applicator of the present invention.

[0031] In the diagram: 1. Medicine storage cylinder; 2. Adjustable pressing and discharging mechanism; 201. Piston plate; 202. Piston rod; 203. Pressing plate; 204. Return spring; 205. Fixed shell; 206. First lead screw; 207. Limiting groove; 208. Limiting disc; 209. Indicator needle; 210. Scale line; 211. Drive shaft; 212. Bevel gear; 213. First rotating cap; 3. Opening and closing docking mechanism; 301. Extension rod; 302. Empty groove; 303. Receiving groove; 304. Dividing hole; 305. Rotating shaft; 306. Rotating disk; 307. Docking hole; 308. First connecting pipe; 309. Second connecting pipe; 310. Worm gear; 311. Worm wheel; 312. Second rotating cap; 313. Arc groove; 314. Limiting rod; 4. First application brush; 5. Brush head spare mechanism; 501. U-shaped block; 502. Second lead screw; 503. Clamping plate; 504. Third rotating cap; 505. Second application brush; 6. Feeding pipe; 7. One-way valve; 8. Sealing cover; 9. Rubber auxiliary plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-8 As shown, the present invention provides a technical solution: a dual sterilization integrated sterile disinfection applicator, including a storage cylinder 1 for storing disinfectant, an adjustable pressing and dispensing mechanism 2 is provided on the outer surface of the storage cylinder 1, an opening and closing docking mechanism 3 is provided at the bottom of the storage cylinder 1, a first applicator brush 4 is provided at the bottom of the opening and closing docking mechanism 3, and a brush head spare mechanism 5 is provided on the outer surface of the storage cylinder 1.

[0034] The adjustable press-type dispensing mechanism 2 includes a piston plate 201 slidably connected to the inner side of the medicine storage cylinder 1. A piston rod 202 is fixedly connected to the top of the piston plate 201. One end of the piston rod 202 movably passes through the medicine storage cylinder 1 and is fixedly connected to a pressing plate 203. A return spring 204 is fixedly connected between the piston plate 201 and the medicine storage cylinder 1, and the return spring 204 is sleeved on the outer surface of the piston rod 202. A fixing shell 205 is fixedly connected to the outer surface of the medicine storage cylinder 1. A first lead screw 206 is rotatably connected to the inner side of the fixing shell 205. A limiting groove 207 is provided on one side of the piston rod 202. A limiting disk 208 is threadedly connected to the outer surface of the first lead screw 206. The limiting disk 208 is movably inserted through the limiting groove 207 and is sleeved on the outer surface of the piston rod 202. The pressing plate 203 is slidably connected in the limiting groove 207. Two indicator needles 209 are fixedly connected to both sides of the limiting disk 208. Two scale lines 210 are provided on both sides of the fixed shell 205. A drive shaft 211 for driving the first lead screw 206 to rotate is rotatably connected to the inner side of the fixed shell 205.

[0035] like Figure 1 and Figure 8As shown, the opening and closing docking mechanism 3 includes an extension rod 301 fixedly connected to the bottom end of the medicine storage cylinder 1, and a first medicine brush 4 detachably connected to the bottom end of the extension rod 301. The extension rod 301 has an internal slot 302 and a receiving slot 303. The receiving slot 303 has multiple evenly spaced holes 304 on its inner side. By setting the extension rod 301 at the bottom end of the medicine storage cylinder 1, and opening the internal slot 302 and receiving slot 303, while simultaneously opening multiple evenly spaced holes 304 on the inner side of the receiving slot 303, a disinfection mechanism is formed. The transmission channel from the storage tank 1 to the first application brush 4 serves two purposes: firstly, the receiving tank 303 temporarily stores and buffers the disinfectant, preventing direct impact of the disinfectant on the first application brush 4 and thus avoiding excessive local application; secondly, the multiple distributing holes 304 evenly distribute the disinfectant in the receiving tank 303 to various areas of the first application brush 4, ensuring uniform coverage of the disinfectant on the skin surface during application, improving the disinfection effect, and avoiding incomplete disinfection due to insufficient local application or waste of disinfectant due to excessive local application. Furthermore, the first application brush 4 is detachably connected to the extension rod 301, facilitating individual disinfection and replacement of the first application brush 4 after use, reducing the risk of cross-infection and adapting to aseptic operation requirements. Simultaneously, the device is compatible with a disinfectant formula of 70% isopropanol + 2% chlorhexidine, forming a "rapid-acting + long-lasting" dual sterilization system. 70% isopropanol can quickly penetrate bacterial cell membranes, killing common pathogens (such as Staphylococcus aureus and Escherichia coli) within 1-3 minutes, while simultaneously forming a temporary protective film on the skin surface. It blocks immediate contamination; 2% chlorhexidine can bind to the stratum corneum of the skin, slowly releasing bactericidal components to form a continuous antibacterial film for up to 48 hours, effectively inhibiting subsequent bacterial growth. Compared with traditional povidone-iodine (which has a slow disinfection effect, short antibacterial duration, and is prone to leaving pigment residue on the skin surface that affects the surgical field), it not only improves disinfection efficiency by 3 to 5 times, but also achieves full-cycle coverage of "immediate disinfection - long-lasting protection", solving the pain points of traditional disinfection of "slow effect and short protection", and providing double protection for the sterility of the skin in the surgical area.

[0036] like Figure 1 and Figure 8 As shown, a rotating shaft 305 is rotatably connected to the inner side of the empty slot 302. A rotating disk 306 is fixedly sleeved on the outer surface of the rotating shaft 305. A docking hole 307 is opened on the top of the rotating disk 306. The rotating disk 306 can change its own angle by rotating the rotating shaft 305. The docking hole 307 on its top can cooperate with the subsequent connecting pipe to form a "conduction / cut-off" switching structure. Compared with the traditional drug applicator's "continuous discharge" or "reliance on external valves" control method, this structure can achieve precise control through mechanical rotation, making operation more convenient. Moreover, the structure is integrated inside the extension rod 301, avoiding the problems of external valves being easily contaminated and occupying space, making the device more compact and suitable for scenarios with limited space and high cleanliness requirements, such as surgery.

[0037] like Figure 1 and Figure 8 As shown, a first connecting pipe 308 is provided at the top inner side of the empty trough 302, and a second connecting pipe 309 is provided at the bottom inner side of the empty trough 302. The bottom end of the first connecting pipe 308 contacts the top of the rotating disk 306, and the top end of the second connecting pipe 309 contacts the bottom of the rotating disk 306. By providing the first connecting pipe 308 at the top inner side of the empty trough 302 and the second connecting pipe 309 at the bottom inner side, and by ensuring that the first connecting pipe 308 and the second connecting pipe 309 are in contact with the top and bottom surfaces of the rotating disk 306 respectively, a system is constructed for the disinfectant to flow from the storage cylinder. The docking channel from the first connecting pipe 308 to the second connecting pipe 309 and the rotating disk 306 effectively prevents the disinfectant from leaking through gaps during transmission, thus avoiding contamination of the extension rod 301 or the operating environment. On the other hand, it ensures that when the rotating disk 306 rotates, the docking hole 307 can be precisely aligned or staggered with the first connecting pipe 308 and the second connecting pipe 309, ensuring smooth material discharge during conduction and reliable sealing during cutting, further improving the sealing performance and operational controllability of the device.

[0038] like Figure 1 and Figure 8 As shown, the top end of the first connecting pipe 308 passes through the empty trough 302 and the extension rod 301 and is connected to the inside of the medicine storage cylinder 1. The bottom end of the second connecting pipe 309 passes through the empty trough 302 and the extension rod 301 and is connected to the inside of the receiving tank 303. The continuous transmission of disinfectant is ensured through the interconnected structure, avoiding poor discharge due to interruption of the channel. At the same time, by directly connecting the first connecting pipe 308 to the medicine storage cylinder 1 and the second connecting pipe 309 to the inside of the receiving tank 303, intermediate transmission links are reduced, and the residual amount of disinfectant during transmission is reduced. This saves medicine and facilitates subsequent cleaning and disinfection of the inside of the device, meeting the requirements of "reducing dead corners and facilitating cleaning" in aseptic operation.

[0039] like Figure 1 and Figure 8As shown, a worm gear 310 is rotatably connected to the inner side of the slot 302, and a worm wheel 311 is fixedly sleeved on the outer surface of the rotating shaft 305. The worm gear 310 and the worm wheel 311 are meshed together. By setting the worm gear 310 meshing with the worm wheel 311 on the rotating shaft 305 on the inner side of the slot 302, a transmission structure is formed. The worm gear 310 transmission has the characteristic of a large reduction ratio. When the operator rotates the worm gear 310, it can drive the worm wheel 311, the rotating shaft 305, and the rotating disk 306 to rotate slowly with a small force, thereby achieving... The precise alignment of the docking hole 307 with the first connecting pipe 308 and the second connecting pipe 309 avoids docking deviations caused by excessive rotation. On the other hand, the meshing of the worm gear 310 and worm wheel 311 has a reverse self-locking characteristic, that is, the worm wheel 311 cannot drive the worm gear 310 to rotate. This ensures that after the rotating disk 306 is adjusted into place, it will not rotate on its own even if it is subjected to external vibration, accidental contact or other external forces, thus ensuring a stable state of disinfectant delivery and avoiding disinfection interruption or drug leakage due to device misoperation during surgery.

[0040] like Figure 1 and Figure 8 As shown, one end of the worm gear 310 movably passes through the slot 302 and the extension rod 301 and is equipped with a second rotating cap 312. An arc-shaped groove 313 is provided on the inner bottom of the extension rod 301. A limiting rod 314 is slidably connected in the arc-shaped groove 313. The top end of the limiting rod 314 is fixedly connected to the rotating disk 306. By setting the second rotating cap 312, it provides convenience for the operator to rotate the worm gear 310. The arc-shaped groove 313 is provided on the inner bottom of the extension rod 301, and the limiting rod 314 fixed to the rotating disk 306 slides in the arc-shaped groove 313, forming a rotation limiting structure for the rotating disk 306. The trajectory of the arc-shaped groove 313 can limit the rotation angle range of the rotating disk 306, preventing the rotating disk 306 from rotating excessively, causing excessive misalignment between the docking hole 307 and the first connecting pipe 308 and the second connecting pipe 309, or damage to components such as the rotating shaft 305 and the worm gear 311 due to excessive rotation.

[0041] like Figure 1 and Figure 5As shown, the brush head spare mechanism 5 includes two U-shaped blocks 501 fixedly connected to the outer surface of the medicine storage cylinder 1. Two second lead screws 502 are threadedly connected to the inner sides of the two U-shaped blocks 501. One end of each second lead screw 502 is rotatably connected to two clamping plates 503, and the other end of each second lead screw 502 is fitted with two third rotating caps 504. Two second medicine-applying brushes 505 are positioned between the two clamping plates 503 and the two U-shaped blocks 501. The U-shaped blocks 501 provide a stable storage space for the second medicine-applying brushes 505, preventing contamination or loss due to careless placement. Furthermore, rotating the third rotating caps 504 drives the second lead screws 502. 2. Rotate to move the clamping plate 503 along the inner side of the U-shaped block 501, thereby quickly clamping or releasing the second application brush 505. When clamped, the second application brush 505 is fixed to prevent it from shaking or falling off during device movement. When released, the second application brush 505 can be quickly removed without additional tools. At the same time, the two second application brushes 505 are respectively located in cleanroom packaging tape (not shown in the figure). The cleanroom packaging tape can fully enclose and protect the second application brushes 505, isolating external dust and bacteria from contact with the brush head, ensuring that the second application brushes 505 are always sterile before use. When in use, the second application brushes 505 can be removed and replaced by tearing open the cleanroom packaging tape.

[0042] like Figure 1 and Figure 6 As shown, the outer surface of the first lead screw 206 is fixedly connected to one end of the drive shaft 211 with two bevel gears 212. The two bevel gears 212 mesh with each other. One end of the drive shaft 211 movably passes through the fixed housing 205 and is equipped with a first rotating cap 213. By rotating the first rotating cap 213, the drive shaft 211, bevel gears 212, and first lead screw 206 can be rotated to adjust the position of the limit plate 208. The operation is labor-saving and avoids direct hand contact with the drive shaft 211, which meets the requirements of aseptic operation.

[0043] like Figure 1 and Figure 2As shown, a feeding pipe 6 is fixedly connected to the outer surface of the medicine storage cylinder 1. A one-way valve 7 is installed on the feeding pipe 6, and a sealing cap 8 is threadedly connected to the top of the feeding pipe 6. Two rubber auxiliary plates 9 are fixedly connected to the outer surface of the medicine storage cylinder 1. The feeding pipe 6 provides a convenient channel for replenishing disinfectant to the medicine storage cylinder 1, allowing for feeding without disassembling the device. The one-way valve 7 prevents the disinfectant in the medicine storage cylinder 1 from flowing back into the feeding pipe 6 when the dispensing is pressed, avoiding drug contamination. The sealing cap 8 seals the feeding pipe 6 after feeding, preventing external dust and bacteria from entering the medicine storage cylinder 1. To ensure the disinfectant remains sterile and meets the cleanliness requirements for disinfectants in surgical procedures, two rubber auxiliary plates 9 are installed on the outer surface of the drug reservoir 1. On the one hand, the rubber material has good anti-slip properties, and when the operator holds the applicator, the rubber auxiliary plates 9 can increase the friction between the hand and the drug reservoir 1, preventing the device from slipping in the hand, which is especially suitable for the wet and slippery scenario where the hands may be covered with disinfectant during surgery. On the other hand, the rubber material is soft, which can reduce the discomfort of holding the hand for a long time, improve the comfort of operation, and reduce the operator's hand fatigue.

[0044] The usage and working principle of this device are as follows: During the disinfectant filling stage, the operator must first wash their hands and wear sterile gloves, then slowly tear open the packaging, take out the applicator, and then unscrew the sealing cap 8 on the feeding pipe 6 on the outer surface of the storage cylinder 1. The pre-prepared disinfectant is then injected into the storage cylinder 1 through the feeding pipe 6. After filling, tighten the sealing cap 8 to ensure that the feeding pipe 6 is sealed. At this time, the one-way valve 7 will block the backflow of disinfectant, ensuring the safety of the stored disinfectant.

[0045] During the discharge volume adjustment stage, depending on the size of the disinfection area (such as small-area disinfection around a surgical incision or large-area skin disinfection), the first rotating cap 213 outside the fixed shell 205 is rotated. This drives the bevel gear 212 meshing at both ends to rotate via the drive shaft 211, which in turn drives the first lead screw 206 inside the fixed shell 205 to rotate. When the first lead screw 206 rotates, the limiting plate 208 connected by the thread on the outer surface will move up and down along the limiting groove 207. The operator can set the maximum downward movement distance of the pressing plate 203 by observing the alignment position of the indicator needles 209 on both sides of the limiting plate 208 with the scale lines 210 on both sides of the fixed shell 205 (such as setting a shorter stroke for small-area disinfection to reduce the discharge volume; setting a longer stroke for large-area disinfection to increase the discharge volume) to ensure that the amount of disinfectant liquid pressed each time is accurately adapted to the needs.

[0046] During the disinfectant delivery stage, the second rotating cap 312 outside the extension rod 301 is rotated, which drives the worm gear 310 to rotate. Through the meshing transmission between the worm gear 310 and the worm wheel 311, the rotating shaft 305 drives the rotating disk 306 to rotate. When the limiting rod 314 slides to one end of the arc groove 313 and cannot rotate, the docking hole 307 on the rotating disk 306 is just aligned with the first connecting pipe 308 at the top of the empty groove 302 and the second connecting pipe 309 at the bottom. At this time, the channel between the medicine storage cylinder 1 and the receiving groove 303 is opened.

[0047] During the hand-held application stage, the operator holds the two rubber auxiliary plates 9 on the outer surface of the medicine storage cylinder 1 with both hands, and places the first application brush 4 against the skin surface to be disinfected; press down on the pressing plate 203, which drives the piston plate 201 on the inner side of the medicine storage cylinder 1 to move down through the piston rod 202, squeezing the disinfectant in the medicine storage cylinder 1. The disinfectant enters the receiving tank 303 through the first connecting pipe 308, the docking hole 307, and the second connecting pipe 309 in sequence, and then evenly penetrates into the first application brush 4 through multiple equal distribution holes 304 on the inner side of the receiving tank 303. Finally, the first application brush 4 is used to wipe the skin surface. When the pressing plate 203 is released, the piston plate 201 returns to its original position under the pulling force of the return spring 204, and a negative pressure is formed in the medicine storage cylinder 1, preparing for the next press to dispense the disinfectant.

[0048] During the cut-off delivery and cleaning / replacement phase, if disinfection needs to be paused, rotate the second rotating cap 312 in the reverse direction to rotate the worm gear 310, worm wheel 311, rotating shaft 305, and rotating disk 306. This causes the docking hole 307 on the rotating disk 306 to be misaligned with the first connecting pipe 308 and the second connecting pipe 309, cutting off the disinfectant delivery channel and preventing leakage or deterioration of the disinfectant when not in operation. After disinfection, if the first application brush 4 needs to be replaced, it can be directly disassembled. Then, rotating the third rotating cap 504 will rotate the second lead screw 502, causing the clamp 503 to move away from the second application brush 505, thus quickly releasing the second application brush 505. The second application brush 505 can then be removed from the dust-free packaging bag for replacement. After use, the first application brush 4 should be disinfected or discarded according to aseptic operation procedures.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-sterilization integrated aseptic disinfection applicator, characterized in that, It includes a medicine storage cylinder (1) for storing disinfectant, an adjustable pressing and dispensing mechanism (2) is provided on the outer surface of the medicine storage cylinder (1), an opening and closing docking mechanism (3) is provided at the bottom end of the medicine storage cylinder (1), a first medicine brush (4) is provided at the bottom end of the opening and closing docking mechanism (3), and a brush head spare mechanism (5) is provided on the outer surface of the medicine storage cylinder (1). The adjustable pressing and discharging mechanism (2) includes a piston plate (201) slidably connected to the inner side of the medicine storage cylinder (1). A piston rod (202) is fixedly connected to the top of the piston plate (201). One end of the piston rod (202) movably passes through the medicine storage cylinder (1) and is fixedly connected to a pressing plate (203). A return spring (204) is fixedly connected between the piston plate (201) and the medicine storage cylinder (1), and the return spring (204) is sleeved on the outer surface of the piston rod (202). A fixing shell (205) is fixedly connected to the outer surface of the medicine storage cylinder (1). A first lead screw (206) is rotatably connected to the inner side of the fixing shell (205). A limiting groove (207) is provided on one side of the housing (205). A limiting disk (208) is threadedly connected to the outer surface of the first lead screw (206). The limiting disk (208) is movably inserted through the limiting groove (207) and is sleeved on the outer surface of the piston rod (202). The pressing plate (203) is slidably connected in the limiting groove (207). Two indicator needles (209) are fixedly connected to both sides of the limiting disk (208). Two scale lines (210) are provided on both sides of the fixed housing (205). A drive shaft (211) for driving the first lead screw (206) to rotate is rotatably connected to the inner side of the fixed housing (205).

2. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 1, characterized in that: The opening and closing docking mechanism (3) includes an extension rod (301) fixedly connected to the bottom end of the medicine storage cylinder (1), and the first medicine brush (4) is detachably connected to the bottom end of the extension rod (301). The extension rod (301) has a hollow groove (302) and a receiving groove (303) inside, and the receiving groove (303) has a plurality of evenly distributed holes (304) on the inner side.

3. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 2, characterized in that: The inner side of the slot (302) is rotatably connected to a rotating shaft (305), and a rotating disk (306) is fixedly sleeved on the outer surface of the rotating shaft (305). A docking hole (307) is opened on the top of the rotating disk (306).

4. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 3, characterized in that: A first connecting pipe (308) is provided on the top inner side of the empty groove (302), and a second connecting pipe (309) is provided on the bottom inner side of the empty groove (302). The bottom end of the first connecting pipe (308) is in contact with the top of the rotating disk (306), and the top end of the second connecting pipe (309) is in contact with the bottom of the rotating disk (306).

5. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 4, characterized in that: The top end of the first connecting tube (308) passes through the empty groove (302) and the extension rod (301) and is connected to the inside of the medicine storage cylinder (1). The bottom end of the second connecting tube (309) passes through the empty groove (302) and the extension rod (301) and is connected to the inside of the receiving groove (303).

6. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 3, characterized in that: A worm (310) is rotatably connected to the inner side of the slot (302), and a worm wheel (311) is fixedly sleeved on the outer surface of the rotating shaft (305). The worm (310) and the worm wheel (311) are meshed together.

7. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 6, characterized in that: One end of the worm gear (310) movably passes through the slot (302) and the extension rod (301) and is equipped with a second rotating cap (312). An arc-shaped groove (313) is provided on the bottom inner side of the extension rod (301). A limiting rod (314) is slidably connected in the arc-shaped groove (313). The top end of the limiting rod (314) is fixedly connected to the rotating disk (306).

8. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 1, characterized in that: The spare brush head mechanism (5) includes two U-shaped blocks (501) fixedly connected to the outer surface of the medicine storage cylinder (1). The inner sides of the two U-shaped blocks (501) are threaded with two second screw rods (502). One end of the two second screw rods (502) is rotatably connected with two clamping plates (503). The other end of the two second screw rods (502) is equipped with two third rotating caps (504). Two second medicine brushes (505) are arranged between the two clamping plates (503) and the two U-shaped blocks (501).

9. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 1, characterized in that: The outer surface of the first lead screw (206) is fixedly connected to one end of the drive shaft (211) with two bevel gears (212), and the two bevel gears (212) are meshed together. One end of the drive shaft (211) movably passes through the fixed shell (205) and is equipped with a first rotating cap (213).

10. The integrated sterilization and disinfection applicator with dual sterilization function according to claim 1, characterized in that: The outer surface of the medicine storage cylinder (1) is fixedly connected to a feeding pipe (6), a one-way valve (7) is installed on the feeding pipe (6), a sealing cap (8) is threadedly connected to the top of the feeding pipe (6), and two rubber auxiliary plates (9) are fixedly connected to the outer surface of the medicine storage cylinder (1).

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