Continuous external medicine coating device for dermatology department

Abstract

The invention relates to the technical field of medical instruments, in particular to a dermatological department external medicine continuous coating device which comprises an ointment shell, a first butt joint seat is inserted into the bottom of the ointment shell, a butt joint ring is arranged in the center of the top of the first butt joint seat, and an ointment aluminum pipe is placed in the ointment shell; a second butt joint seat is inserted into the bottom of the liquid medicine shell; a sliding cover is mounted at the top of the cotton swab shell in a sliding manner; the extrusion assembly comprises a sliding rail mounted on the inner wall of the ointment shell through a bolt and a sliding seat mounted in the sliding rail in a sliding manner; the locking assembly comprises a third knob arranged on the outer side of the cotton swab shell and a fourth rotating shaft fixedly arranged in the center of one side wall of the third knob; according to the continuous coating device for the dermatological external medicine, ointment and liquid medicine coating instruments are integrally designed, ointment can be continuously, quantitatively and uniformly coated, liquid medicine can be uniformly coated and sprayed, and the continuous coating device is convenient to use and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a continuous coating device for external-use dermatological medicines. Background Art

[0002] Dermatology is a clinical department in the medical field that specializes in the diagnosis, treatment, and research of diseases related to the skin, hair, nails, and mucous membranes. As the largest organ in the human body, the skin is not only an important physical barrier but also a vital window to health. Many internal diseases may manifest through the skin. Dermatology is an important clinical discipline that covers a wide range of diseases, has diverse treatment methods, and is closely integrated with the field of beauty. There are many types of topical dermatological medications. Accurate selection (drug + dosage form) and correct use (clean, thin application, and sufficient treatment course) are key to efficacy and safety. Dermatological medications mainly include ointments and liquid medicines. Ointments require cotton swabs for application, while liquid medicines are usually sprayed using a spray device. For example, the existing public document CN222566603U - A topical drug coating device discloses a drug coating device. Although the existing disclosed continuous coating devices for external dermatological drugs can apply drugs, there are still certain deficiencies in actual use: first, the existing continuous coating devices for external dermatological drugs cannot apply ointments in a quantitative manner during use, and the extruded ointment needs to be evenly coated twice with a cotton swab, and continuous coating of the ointment cannot be achieved, which is inefficient; second, most of the existing continuous coating devices for external dermatological drugs use spray bottles to spray the drug solution, and this method requires continuous pressing of the spray head to achieve continuous spraying, which can easily cause hand soreness. At the same time, when the drug application area is small, the spraying method can easily cause waste of drug solution; finally, the cotton swabs or spray bottles used in the existing continuous coating devices for external dermatological drugs are of a split design. When the ointment and drug solution are applied at the same time, multiple coating devices need to be prepared, which affects the use efficiency; therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the fact that the above-mentioned existing continuous coating device for external dermatological drugs cannot apply ointment in a quantitative manner during use, and the extruded ointment needs to be evenly coated twice with a cotton swab, and continuous coating of the ointment cannot be achieved, resulting in low efficiency, a continuous coating device for external dermatological drugs is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a continuous coating device for external dermatological drugs, comprising an ointment shell, a first docking seat is plugged into the bottom of the ointment shell, a docking ring is provided at the top center position of the first docking seat, a medicine dispensing needle is provided at the inner center position of the docking ring, and an ointment aluminum tube is placed inside the ointment shell; a liquid medicine shell, a second docking seat is plugged into the bottom of the liquid medicine shell, a top ring is provided at the top center position of the second docking seat; a cotton swab shell, a sliding cover is slidably installed on the top of the cotton swab shell, a locking groove is provided at the bottom center position of the cotton swab shell, circular grooves are provided above and below the rear end of the locking groove, and a mounting groove is provided at the front end of the locking groove; an extrusion assembly, comprising a slide rail and The cam is fixed on the outer wall of the lifting frame, and the cam is fixed on the outer wall of the lifting frame with a plurality of toothed plates; the cam is fixed on the outer wall of the lifting frame with a plurality of toothed plates; and the cam is fixed on the outer wall of the lifting frame with a plurality of toothed plates.

[0006] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs is provided, wherein: a liquid separation head or a spray head is screwed onto the outer side of the threaded barrel, a rolling groove is provided in an array at the bottom of the liquid separation head, steel balls are embedded in the rolling groove, a liquid medicine barrel is installed inside the liquid medicine shell, and a sealing cover is screwed onto the top of the liquid medicine barrel.

[0007] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs is provided, wherein: a square hole is opened in the middle of the drug liquid cylinder and the sealing cover, a slide groove is provided at the center of the inner wall around the square hole, a storage bin is provided above the inner part of the cotton swab shell, and a nail wheel is rotatably installed inside the circular groove.

[0008] As a preferred solution of the present invention, a continuous coating device for external dermatological drugs, wherein: a first rotating shaft is installed at the inner center position of the winding roller, a plurality of toothed discs are fixedly sleeved on the outer wall of the second rotating shaft, and the front and rear ends of the second rotating shaft are fixed with moving rods; wherein the front and rear ends of the first rotating shaft are respectively rotatably installed on the inner wall of the ointment shell, and the outer end of the moving rod slides through the through hole on the ointment shell and is connected to the first knob.

[0009] The beneficial effects of the present invention are as follows: by arranging an extrusion component and a locking component, continuous coating of the ointment can be achieved, and by making the toothed disks with different numbers of racks contact the flexible tooth plate, the amount of ointment discharged can be controlled when the first knob is rotated once, so that medical staff can adjust the single amount of medicine discharged according to the area of ​​the diseased skin and reduce waste. Specifically, different ointments can be quickly replaced by replacing different ointment aluminum tubes. At the same time, the ointment can be applied along the ointment discharge path using a circulated extended cotton swab to achieve the goal of applying the ointment to uneven parts, thereby improving the coating efficiency.

[0010] In view of the fact that the existing continuous coating device for external dermatological drugs requires continuous pressing of the spray head to achieve continuous spraying of the drug solution, which can easily cause hand soreness, and at the same time, when the medication area is small, the spraying method can easily cause waste of the drug solution, a further improvement of the continuous coating device for external dermatological drugs is proposed.

[0011] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs further comprises a pressurizing assembly arranged at the top inner surface of the drug liquid housing, the pressurizing assembly comprising an air cylinder mounted on the inner wall of the drug liquid housing and a piston movably mounted inside the air cylinder, a circulating rod movably mounted at the bottom center of the piston, the bottom end of the circulating rod being rotatably mounted at the outer wall end of the disc, and a third rotating shaft being mounted at the center of the other side wall of the disc.

[0012] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs is provided, wherein: a second knob is sleeved on the outer wall of the third rotating shaft, an air inlet pipe is provided at the top center position of the air cylinder, an air outlet pipe is provided at the top of one side wall of the air cylinder, and the other end of the air outlet pipe is connected to the connecting pipe through a pipe joint.

[0013] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs is provided, wherein: the other end of the connecting tube is connected to the plug-in tube through a pipe joint, and the outer wall of the plug-in tube is fixedly mounted inside the hanger; wherein, the other end of the third rotating shaft is rotatably mounted on the inner wall of the medicine liquid housing, the top of the hanger is mounted on the inner wall of the medicine liquid housing, and a one-way valve is respectively provided on the air inlet pipe and the air outlet pipe.

[0014] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs further comprises a sealing assembly arranged inside the square hole, the sealing assembly comprising a square tube tightly sliding inside the square hole and a hollow tube fixed at the center of the bottom of the square tube, liquid outlet holes are opened on the four outer walls of the square tube, and movable plates are fixed at the bottom of the four outer walls of the square tube.

[0015] As a preferred solution of the present invention, a continuous coating device for external dermatological drugs, wherein: the sliding hole on the movable plate is slidably sleeved on the outer wall of the guide rod, and a tension spring is sleeved on the outer wall of the guide rod; wherein, the liquid outlet is connected to the interior of the hollow tube, the two ends of the guide rod are respectively fixed on the inner wall of the slide groove, and the two ends of the tension spring are respectively fixed on the outer wall of the movable plate and the inner wall of the slide groove.

[0016] Another beneficial effect of the present invention is that by setting a liquid separation head, a spray head, a pressurizing component and a sealing component, continuous coating of the medicine liquid is achieved, wherein the liquid separation head is used to achieve coating of a small area or that can contact the patient's skin, and the steel ball at the bottom of the liquid separation head contacts the diseased part of the skin to make the medicine in the medicine cylinder overflow and be coated on the diseased surface of the skin, so that the medicine coating is more uniform and will not cause waste of medicine liquid. The spray head is used to achieve spraying of a large area or that cannot contact the patient's skin. Compared with the traditional spray bottle, this operation reduces repetitive steps, reduces the operation frequency, and relieves hand fatigue.

[0017] In view of the fact that the cotton swabs or spray bottles used in the existing continuous coating devices for external dermatological drugs are of split design, multiple coating devices need to be prepared when applying ointment and liquid at the same time, which affects the efficiency of use. Therefore, a further improvement of the continuous coating device for external dermatological drugs is proposed.

[0018] As a preferred embodiment of the present invention, a continuous coating device for external dermatological drugs is provided, wherein: the drug liquid housing is installed on one side wall of the ointment housing, the cotton swab housing is installed at the bottom of the other side wall of the ointment housing, a transparent window is provided above one side wall of the ointment housing, an ointment opening is provided at the top tip of the drug discharge needle tube, and a threaded barrel is provided at the bottom center of the second docking seat.

[0019] Another beneficial effect of the present invention is that by setting the ointment shell and the liquid medicine shell, an integrated design of the ointment and liquid medicine coating device is realized, and no multiple coating devices are required. The ointment and liquid medicine can be coated simultaneously, thereby improving the use efficiency, and can be reused to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 The overall structure of the continuous coating device for external use of dermatological drugs in the present invention is shown in FIG. Figure 1 .

[0021] Figure 2The overall structure of the continuous coating device for external use of dermatological drugs in the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of disassembly of the ointment shell in the structure Figure 1 .

[0023] Figure 4 For the present invention Figure 1 Schematic diagram of disassembly of the ointment shell in the structure Figure 2 .

[0024] Figure 5 For the present invention Figure 1 Vertical cross-section of the ointment shell in the structure.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of the extruded components.

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the flexible tooth plate, the first rotating shaft and the moving rod.

[0027] Figure 8 For the present invention Figure 2 Schematic diagram of disassembly of the liquid medicine shell in the structure Figure 1 .

[0028] Figure 9 For the present invention Figure 2 Schematic diagram of disassembly of the liquid medicine shell in the structure Figure 2 .

[0029] Figure 10 For the present invention Figure 2 Vertical cross-section of the liquid medicine shell in the structure.

[0030] Figure 11 For the present invention Figure 10 Vertical cross-section of the dispensing head in the structure.

[0031] Figure 12 For the present invention Figure 10 Vertical cross-section of the medicine cartridge in the structure.

[0032] Figure 13 For the present invention Figure 10 Schematic diagram of the disassembled pressurized components of the structure.

[0033] Figure 14 For the present invention Figure 12 Schematic diagram of the sealing component in the structure.

[0034] Figure 15 For the present invention Figure 1Vertical cross-section of the cotton swab housing in the structure.

[0035] Figure 16 For the present invention Figure 15 Schematic diagram of the disassembly of the locking components in the structure.

[0036] In the accompanying drawings, the components represented by the reference numerals are as follows: 100, ointment shell; 101, transparent window; 102, first docking seat; 102a, docking ring; 103, drug delivery needle; 103a, ointment port; 104, ointment aluminum tube; 200, liquid shell; 201, second docking seat; 201a, top ring; 201b, threaded barrel; 202, dispensing head; 202a, rolling groove; 202b, steel ball; 203, spray head; 20 4. Liquid medicine cartridge; 204a, square hole; 204b, slide; 205, sealing cover; 300, cotton swab housing; 301, slide cover; 302, storage bin; 303, locking slot; 304, round slot; 305, nail wheel; 306, mounting slot; 400, extrusion assembly; 401, slide rail; 402, slide seat; 403, lifting frame; 404, pressure roller; 405, flexible tooth plate; 40 6. Winding roller; 406a. First rotating shaft; 407. Second rotating shaft; 407a. Toothed disc; 408. Moving rod; 408a. First knob; 500. Pressurizing assembly; 501. Second knob; 502. Third rotating shaft; 503. Disc; 504. Circulation rod; 505. Piston; 506. Air cylinder; 506a. Inlet pipe; 506b. Outlet pipe; 506c. Connecting pipe; 506d. Plug-in pipe; 507. Hanger; 600. Sealing assembly; 601. Square tube; 601a. ​​Liquid outlet; 602. Hollow tube; 603. Moving plate; 604. Guide rod; 604a. Tension spring; 700. Locking assembly; 701. Third knob; 701a. Fourth rotating shaft; 702. Slider; 703. Active toothed roller; 705. Auxiliary toothed roller; 704. Toothed belt. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0040] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0041] Example 1 Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 15 and Figure 16 , which is the first embodiment of the present invention, provides a continuous coating device for external dermatological drugs. The continuous coating device for external dermatological drugs can achieve quantitative and continuous coating of ointments, and can quickly change different ointments for use, while using a cotton swab to evenly apply the ointment.

[0042] Specifically, the ointment shell 100, the bottom of the ointment shell 100 is plugged with a first docking seat 102, the top center position of the first docking seat 102 is provided with a docking ring 102a, the inner center position of the docking ring 102a is provided with a medicine dispensing needle 103, and the ointment aluminum tube 104 is placed inside the ointment shell 100; the liquid medicine shell 200, the bottom of the liquid medicine shell 200 is plugged with a second docking seat 201, the top center position of the second docking seat 201 is provided with a top ring 201a; the cotton swab shell 300, the top of the cotton swab shell 300 is slidably installed with a sliding Cover 301, a locking groove 303 is provided at the center of the bottom of the cotton swab shell 300, circular grooves 304 are provided above and below the rear end of the locking groove 303, and a mounting groove 306 is provided at the front end of the locking groove 303; the extrusion assembly 400 includes a slide rail 401 installed on the inner wall of the ointment shell 100 by bolts and a slide seat 402 slidably installed inside the slide rail 401; and a locking assembly 700 includes a third knob 701 arranged on the outside of the cotton swab shell 300 and a fourth rotating shaft 701a fixed at the center position of one side wall of the third knob 701.

[0043] See details Figure 6 、 Figure 7 and Figure 16, a lifting frame 403 is installed at the bottom of the slide 402, and pressure rollers 404 are rotatably installed at the front and rear ends of the lifting frame 403. A flexible tooth plate 405 is installed in the middle of one side wall of the lifting frame 403, and the other end of the flexible tooth plate 405 is wound on the outer wall of the winding roller 406. A plurality of toothed discs 407a are arranged in an array from front to back on the outer side of the flexible tooth plate 405; the other end of the fourth rotating shaft 701a passes through the bearing on the slider 702, and an active toothed roller 703 is sleeved on the outer wall of the fourth rotating shaft 701a, and a toothed belt 704 is sleeved on the outer wall of the active toothed roller 703, and the upper and lower parts of the inner part of the toothed belt 704 are meshed. An auxiliary gear roller 705 is provided; wherein the slider 702 is slidably mounted in a sliding hole on the cotton swab housing 300, and the auxiliary gear roller 705 is rotatably mounted on the groove wall of the mounting groove 306; a first rotating shaft 406a is mounted at the inner center position of the winding roller 406, and a plurality of gear discs 407a are fixedly sleeved on the outer wall of the second rotating shaft 407, and a moving rod 408 is fixed to the front and rear ends of the second rotating shaft 407; wherein the front and rear ends of the first rotating shaft 406a are respectively rotatably mounted on the inner wall of the ointment housing 100, and the outer end of the moving rod 408 slides through the through hole in the ointment housing 100 and is connected to the first knob 408a; When the above arrangement is in use, the packaging of the external plaster, i.e. the ointment aluminum tube 104, needs to be inserted into the ointment shell 100, so that the flat end of the bottom end of the ointment aluminum tube 104 is inserted between the two adjacent pressure rollers 404, and then the first docking seat 102 is inserted into the bottom of the ointment shell 100. Since the medicine outlet of the ointment aluminum tube 104 is set vertically downward, when the first docking seat 102 is inserted, the inner docking ring 102a will be inserted into the outer end of the medicine outlet of the ointment aluminum tube 104. At the same time, the medicine outlet needle 103 will be inserted into the ointment aluminum tube 104. When the ointment needs to be applied, the medical staff rotates the first knob 408a, and the first knob 408a is forced to rotate and rotate synchronously with the second rotating shaft 407 through the moving rod 408. The second rotating shaft 407 rotates, and the rotation of the second rotating shaft 407 will cause the toothed disc 407a on its outer wall to rotate, wherein the toothed disc 407a is engaged with the flexible toothed plate 405, and the flexible toothed plate 405 is wound on the outer wall of the winding roller 406, so when the toothed disc 407a rotates, it will cause the flexible toothed plate 405 to continuously extend and move downward. Since the inner wall of the flexible toothed plate 405 is fixed on the outer wall of the lifting frame 403, and the other end face of the lifting frame 403 is slidably installed in the slide rail 401 through the slide seat 402, the extension and descent of the flexible toothed plate 405 will cause the lifting frame 403 and the pressure roller 404 inside it to descend synchronously, and the descent of the two pressure rollers 404 will squeeze the ointment aluminum tube 104, and squeeze the ointment in the ointment aluminum tube 104 to the diseased part of the skin. The first knob 408a is turned to realize continuous coating of the ointment. When the amount of ointment coating needs to be controlled, the medical staff can apply force to the first knob 408a at the front and rear ends to enable the first knob 408a, the moving rod 408, the second rotating shaft 407 and the toothed disc 407a to move back and forth in the ointment shell 100. There are multiple toothed discs 407a, and the number of racks on the outer walls of the multiple toothed discs 407a is different. The number of racks on the outer walls of the multiple toothed discs 407a decreases step by step from front to back. By contacting the toothed discs 407a with different numbers of racks with the flexible tooth plate 405, the amount of ointment discharged can be controlled when the first knob 408a is rotated once, so that the medical staff can adjust the single amount of medicine discharged according to the area of ​​the diseased skin, reducing Waste, wherein the ointment aluminum tube 104 is inserted into the ointment shell 100, so different ointments can be quickly replaced by replacing different ointment aluminum tubes 104. After the ointment is applied to the diseased part of the skin, since there are multiple cotton swabs in the storage bin 302 in the cotton swab shell 300, at this time, the medical staff rotates the third knob 701. The rotation of the third knob 701 will drive the fourth rotating shaft 701a and the active gear roller 703 on the outer wall to rotate, and the rotation of the active gear roller 703 will drive the tooth belt 704 to rotate under the action of the auxiliary gear roller 705. As the tooth belt 704 rotates, the nail wheel 305 can be used to send the cotton swab into the locking groove 303. After the cotton head of the cotton swab moves out of the locking groove 303, the third knob 701 is pushed inward.The third knob 701 is forced to move the fourth rotating shaft 701a inward under the action of the slider 702 and the sliding hole. As the active toothed roller 703 moves, it pushes the toothed belt 704 to squeeze the cotton swab in the locking groove 303, so that the cotton swab can be stuck on the outer wall of the spike wheel 305, fixing the cotton swab in place. At this time, the cotton tip of the cotton swab can be used to apply the ointment along the ointment dispensing path, so as to achieve uneven application of the ointment and improve application efficiency.

[0044] Furthermore, the ointment shell 100 and the first docking seat 102 are quickly connected by a protrusion. The top of the medicine dispensing needle tube 103 is set with a pointed tip and the bottom is set with a flat mouth, so that the medicine dispensing needle tube 103 can puncture and insert into the ointment aluminum tube 104 medicine outlet to achieve ointment overflow. The locking groove 303 enters and removes a single cotton swab smoothly at a single time. The cooperation of the slide 402 and the slide rail 401 can assist the lifting frame 403 in lifting and lowering. The pressure roller 404 is provided with two, and its lifting and lowering movement can be After the ointment aluminum tube 104 is squeezed out, the flexible tooth plate 405 can be wound on the outer wall of the winding roller 406 to realize the movement of the lifting frame 403 and the pressure roller 404. There are multiple toothed discs 407a, and the number of racks on the outer wall of the multiple toothed discs 407a gradually decreases from front to back. By changing the contact between the toothed discs 407a with different numbers of racks and the flexible tooth plate 405, quantitative dispensing of medicine is realized. Since the toothed belt 704 has teeth on the outer wall, it can bring out the cotton swab when it moves.

[0045] Read in detail Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 15 As shown, the outer side of the threaded barrel 201b is screwed with a liquid dispensing head 202 or a spray head 203, the bottom array of the liquid dispensing head 202 is provided with a rolling groove 202a, and the interior of the rolling groove 202a is embedded with a steel ball 202b, the interior of the liquid medicine shell 200 is installed with a liquid medicine barrel 204, and the top of the liquid medicine barrel 204 is screwed with a sealing cover 205; the middle of the liquid medicine barrel 204 and the sealing cover 205 are provided with a square hole 204a, and the center of the inner wall around the square hole 204a is provided with a slide groove 204b, the upper part of the interior of the cotton swab shell 300 is provided with a storage bin 302, and the interior of the circular groove 304 is rotatably installed with a nail wheel 305.

[0046] Furthermore, the liquid separation head 202 and the spray head 203 are screwed on the outer wall of the threaded barrel 201b according to actual usage. The steel ball 202b is in contact with the patient's skin. When the steel ball 202b rotates, the medicine liquid can be applied to the patient's skin. By replacing the medicine liquid in the medicine liquid barrel 204, the coating of different medicines can be achieved. Multiple cotton swabs can be stored in the storage bin 302, and the cotton swabs are circulated to evenly apply the ointment. The nail wheel 305 can clamp the cotton swab to improve the stability of the cotton swab during the application process.

[0047] Example 2 Reference Figure 10 、 Figure 12 、 Figure 13 and Figure 14 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that by replacing the liquid separation head 202 and the spray head 203, corresponding adjustments can be made according to the patient's skin condition to achieve continuous coating of the liquid medicine, and compared with the traditional spray bottle, it can relieve hand fatigue.

[0048] The cam 506 is connected to the air filter 507 by a screw thread 512 and a screw thread 513 which is fixed to the air filter 508. The cam 506 is connected to the air filter 508 by a screw thread 512 and a screw thread 513 which is fixed to the air filter 508. The inner wall of the liquid medicine housing 200 is mounted on the top of the hanger 507, and the inlet pipe 506a and the outlet pipe 506b are respectively provided with a one-way valve; the sealing assembly 600 is also provided inside the square hole 204a, and the sealing assembly 600 includes a square tube 601 that slides tightly inside the square hole 204a and a hollow tube 602 fixed at the bottom center of the square tube 601. The outer walls of the square tube 601 are provided with outlet valves. Liquid hole 601a, a movable plate 603 is fixed to the bottom of the outer wall of each of the four sides of the square tube 601; the sliding hole on the movable plate 603 is slidably sleeved on the outer wall of the guide rod 604, and the outer wall of the guide rod 604 is sleeved with a tension spring 604a; wherein, the liquid outlet hole 601a is connected to the interior of the hollow tube 602, and the two ends of the guide rod 604 are respectively fixed to the inner wall of the slide groove 204b, and the two ends of the tension spring 604a are respectively fixed to the outer wall of the movable plate 603 and the inner wall of the slide groove 204b; When the above arrangement is in use, when liquid medicine needs to be applied, the liquid medicine to be applied is first injected into the medicine liquid cylinder 204, and then the sealing cover 205 is screwed to the top of the medicine liquid cylinder 204 under the action of the thread, and then the bottom of the medicine liquid cylinder 204 is plugged into the outside of the top ring 201a on the second docking seat 201, and the second docking seat 201 is plugged into the bottom of the medicine liquid housing 200. At the same time, the top center position of the sealing cover 205 will be sleeved on the outside of the plug-in tube 506d. Since the top and bottom square tubes 601 are respectively subjected to the forces of the top ring 201a and the plug-in tube 506d, the square tubes 601 are The tube 601 is subjected to force and slides along the inner wall of the square hole 204a and moves synchronously with the hollow tube 602 and the movable plate 603, wherein the movable plate 603 moves along the outer wall of the guide rod 604 and stretches the tension spring 604a. During this process, the liquid outlet 601a on the square tube 601 moves out to the inside of the liquid medicine cylinder 204. When a small area needs to be coated or can contact the patient's skin, the liquid dispensing head 202 is screwed to the bottom of the threaded cylinder 201b using a thread. At this time, the steel ball 202b at the bottom of the liquid dispensing head 202 is brought into contact with the diseased part of the skin and rolled. As the steel ball 202b rolls, the liquid medicine cylinder 204 The liquid in the skin overflows and is applied to the diseased surface of the skin, making the liquid application more uniform and not causing waste of liquid. When a large area needs to be applied or the patient's skin cannot be contacted, the dispensing head 202 is disassembled and replaced with the spray head 203, and then the second knob 501 is rotated. The second knob 501 is forced to rotate the third shaft 502 and the disc 503 at its end, and a circulation rod 504 is rotatably installed on the edge of the outer wall of the disc 503. The other end of the circulation rod 504 is movably installed at the bottom of the piston 505. Therefore, when the disc 503 rotates, it will drive the piston 505 under the action of the hinge and the circulation rod 504. 5 circulates along the inside of the air cylinder 506, and the circulatory movement of the piston 505 continuously squeezes the air in the air cylinder 506, and the compressed gas is discharged through the air outlet pipe 506b, the connecting pipe 506c and the plug-in pipe 506d, wherein the plug-in pipe 506d is plugged into the top of the sealing cover 205. At this time, the channel between the liquid outlet hole 601a and the hollow tube 602 is opened, so that the gas will enter the liquid medicine cylinder 204, causing the liquid medicine to be sprayed from the spray head 203 to the affected area of ​​the skin, realizing continuous spraying of the liquid medicine. Compared with traditional spray bottles, this operation reduces repetitive steps, reduces the operation frequency, and relieves hand fatigue.

[0049] Furthermore, the two ends of the circulation rod 504 are rotatably mounted on the edge of the outer wall of the disc 503 and the bottom of the piston 505, so the disc 503 rotates and the piston 505 moves back and forth in the cylinder 506 under the action of the circulation rod 504 and the hinge, and squeezes the gas in the cylinder 506, and the gas enters the liquid medicine cylinder 204 through the pipe to achieve the spraying of the liquid medicine. The pipe joint plays the role of connecting the pipes, and the one-way valve on the intake pipe 506a makes the intake pipe 506a only Intake operation. Similarly, the one-way valve on the outlet pipe 506b makes the outlet pipe 506b only able to perform the outlet operation. The connecting channel between the liquid outlet hole 601a and the hollow tube 602 is L-shaped to realize the circulation of liquid and gas. Under the elastic action of the tension spring 604a, after the medicine liquid cylinder 204 is disassembled, it can automatically pull the square tube 601 to block the square hole 204a to prevent liquid and gas from entering. The guide rod 604 plays a guiding and limiting role on the tension spring 604a and the movable plate 603.

[0050] Example 3 Reference Figure 1 、 Figure 3 and Figure 9 , which is the third embodiment of the present invention, is based on the previous embodiment, but differs in that, in order to achieve simultaneous coating of ointment and liquid medicine, the ointment and liquid medicine coating device is integrated into a design to reduce the cost of use.

[0051] Specifically, the liquid medicine housing 200 is mounted on one side wall of the ointment housing 100, and the cotton swab housing 300 is mounted on the bottom of the other side wall of the ointment housing 100. A transparent window 101 is provided above one side wall of the ointment housing 100, and an ointment port 103a is provided at the top tip of the medicine dispensing needle tube 103. A threaded barrel 201b is provided at the bottom center of the second docking seat 201. When the above-mentioned arrangement is in use, by setting up an ointment shell 100 and a medicine liquid shell 200, the ointment aluminum tube 104 and the liquid medicine are stored in the ointment shell 100 and the medicine liquid shell 200 respectively, thereby realizing an integrated design of the ointment and medicine liquid coating device. There is no need for multiple coating devices, and the ointment and medicine liquid can be coated simultaneously, thereby improving the use efficiency, and can be reused to reduce costs.

[0052] Furthermore, the transparent window 101 can penetrate through which of the multiple toothed discs 407a engages with the flexible toothed plate 405 to complete the controlled extrusion of the ointment, and the threaded barrel 201b is used to complete the screw connection of the liquid separation head 202 and the spray head 203, and can be replaced as needed.

[0053] In addition, it should be noted that the components not described in detail herein are prior art.

[0054] It is important to note that the configuration and arrangement of the present application as shown in various exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure should readily understand that many modifications are possible (e.g., variations in the size, scale, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of an element may be inverted or otherwise altered, and the nature, number, or position of discrete elements may be modified or changed. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0056] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A continuous coating device for external use of dermatological drugs, characterized by: include, An ointment shell (100), wherein a first docking seat (102) is plugged into the bottom of the ointment shell (100), a docking ring (102a) is provided at the top center of the first docking seat (102), a medicine dispensing needle (103) is provided at the inner center of the docking ring (102a), and an ointment aluminum tube (104) is placed inside the ointment shell (100); A liquid medicine housing (200), wherein a second docking seat (201) is plugged into the bottom of the liquid medicine housing (200), and a top ring (201a) is provided at the top center of the second docking seat (201); A cotton swab shell (300), wherein a sliding cover (301) is slidably mounted on the top of the cotton swab shell (300), a locking groove (303) is provided at the center of the bottom of the cotton swab shell (300), circular grooves (304) are provided above and below the rear end of the locking groove (303), and a mounting groove (306) is provided at the front end of the locking groove (303); An extrusion assembly (400) comprises a slide rail (401) mounted on the inner wall of the ointment shell (100) by means of bolts and a slide seat (402) slidably mounted inside the slide rail (401), a lifting frame (403) being mounted at the bottom of the slide seat (402), pressure rollers (404) being rotatably mounted at the front and rear ends of the lifting frame (403), a flexible tooth plate (405) being mounted in the middle of one side wall of the lifting frame (403), the other end of the flexible tooth plate (405) being wound around the outer wall of a winding roller (406), and a plurality of tooth discs (407a) being arranged in an array from front to back on the outer side of the flexible tooth plate (405); and, A locking assembly (700) comprises a third knob (701) arranged on the outside of the cotton swab housing (300) and a fourth rotating shaft (701a) fixed at the center of a side wall of the third knob (701), the other end of the fourth rotating shaft (701a) passing through a bearing on the slider (702), an active toothed roller (703) sleeved on the outer wall of the fourth rotating shaft (701a), a toothed belt (704) sleeved on the outer wall of the active toothed roller (703), and auxiliary toothed rollers (705) meshing on the upper and lower parts of the toothed belt (704); The slider (702) is slidably mounted in a sliding hole on the cotton swab housing (300), and the auxiliary toothed roller (705) is rotatably mounted on the groove wall of the mounting groove (306).

2. The continuous coating device for external dermatological drugs according to claim 1, characterized in that: The liquid medicine housing (200) is mounted on one side wall of the ointment housing (100), and the cotton swab housing (300) is mounted on the bottom of the other side wall of the ointment housing (100). A transparent window (101) is provided above one side wall of the ointment housing (100), an ointment opening (103a) is provided at the top tip of the medicine dispensing needle tube (103), and a threaded barrel (201b) is provided at the bottom center of the second docking seat (201).

3. The continuous coating device for external dermatological drugs according to claim 2, characterized in that: A liquid separation head (202) or a spray head (203) is screwed onto the outer side of the threaded barrel (201b); a bottom array of rolling grooves (202a) is provided on the bottom of the liquid separation head (202); steel balls (202b) are embedded in the rolling grooves (202a); a liquid medicine barrel (204) is installed inside the liquid medicine housing (200); and a sealing cover (205) is screwed onto the top of the liquid medicine barrel (204).

4. The continuous coating device for external dermatological drugs according to claim 3, characterized in that: A square hole (204a) is provided in the middle of the liquid medicine cylinder (204) and the sealing cover (205), and a sliding groove (204b) is provided at the center of the inner wall around the square hole (204a). A storage bin (302) is provided above the interior of the cotton swab shell (300), and a nail wheel (305) is rotatably installed inside the circular groove (304).

5. The continuous coating device for external dermatological drugs according to claim 1, characterized in that: A first rotating shaft (406a) is installed at the inner center of the winding roller (406), a plurality of toothed discs (407a) are fixedly sleeved on the outer wall of the second rotating shaft (407), and moving rods (408) are fixedly provided at the front and rear ends of the second rotating shaft (407); The front and rear ends of the first rotating shaft (406a) are respectively rotatably mounted on the inner wall of the ointment shell (100), and the outer end of the moving rod (408) slides through the through hole on the ointment shell (100) and is connected to the first knob (408a).

6. The continuous coating device for external dermatological drugs according to claim 1, characterized in that: The invention also includes a pressurizing assembly (500) arranged at the top end of the liquid medicine housing (200), the pressurizing assembly (500) including an air cylinder (506) mounted on the inner wall of the liquid medicine housing (200) and a piston (505) movably mounted inside the air cylinder (506), a circulation rod (504) movably mounted at the bottom center of the piston (505), the bottom end of the circulation rod (504) rotatably mounted on the outer wall end of the disc (503), and a third rotating shaft (502) mounted at the center of the other side wall of the disc (503).

7. The continuous coating device for external dermatological drugs according to claim 6, characterized in that: A second knob (501) is sleeved on the outer wall of the third rotating shaft (502), an air inlet pipe (506a) is provided at the center position of the top of the air cylinder (506), an air outlet pipe (506b) is provided at the top of one side wall of the air cylinder (506), and the other end of the air outlet pipe (506b) is connected to the connecting pipe (506c) through a pipe joint.

8. The continuous coating device for external dermatological drugs according to claim 7, characterized in that: The other end of the connecting pipe (506c) is connected to the plug-in pipe (506d) via a pipe joint, and the outer wall of the plug-in pipe (506d) is fixed inside the hanger (507); The other end of the third rotating shaft (502) is rotatably mounted on the inner wall of the liquid medicine housing (200), the top of the hanger (507) is mounted on the inner wall of the liquid medicine housing (200), and a one-way valve is respectively provided on the air inlet pipe (506a) and the air outlet pipe (506b).

9. The continuous coating device for external dermatological drugs according to claim 4, characterized in that: The invention also includes a sealing assembly (600) arranged inside the square hole (204a), wherein the sealing assembly (600) includes a square tube (601) sliding tightly inside the square hole (204a) and a hollow tube (602) fixed at the center of the bottom of the square tube (601), liquid outlet holes (601a) are opened on the outer walls of the square tube (601), and movable plates (603) are fixed at the bottom of the outer walls of the square tube (601).

10. The continuous coating device for external dermatological drugs according to claim 9, characterized in that: The sliding hole on the movable plate (603) is slidably sleeved on the outer wall of the guide rod (604), and a tension spring (604a) is sleeved on the outer wall of the guide rod (604); The liquid outlet (601a) is connected to the inside of the hollow tube (602), the two ends of the guide rod (604) are respectively fixed on the inner wall of the slide groove (204b), and the two ends of the tension spring (604a) are respectively fixed on the outer wall of the movable plate (603) and the inner wall of the slide groove (204b).

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