Scalp medicine smearing device

Abstract

The utility model discloses a scalp medicine applying device which comprises a driving part, a medicine discharging part, a medicine storage part and a medicine applying part, the medicine discharging part, the medicine storage part and the medicine applying part are sequentially arranged in the length direction of the applying device, the driving part can drive the medicine discharging part to reciprocate in the length direction, the medicine applying part comprises a plurality of medicine applying pipes, and the medicine applying pipes are arranged on the side, away from the medicine discharging part, of the medicine storage part. The medicine storage part comprises a plurality of medicine storage cavities, each medicine applying pipe is communicated with the corresponding medicine storage cavity, and a medicine outlet hole is formed in the tail end of each medicine applying pipe. The medicine discharging part comprises a medicine discharging pushing part and a plurality of piston pushing rods, the piston pushing rods are fixedly connected with the medicine discharging pushing part, and the driving part can drive the medicine discharging pushing part and the piston pushing rods to synchronously push all the medicine storage cavities and medicine liquid in the medicine applying pipe to be discharged from the medicine outlet holes; and the tail end, where the medicine outlet is located, of the medicine applying tube is in contact with the scalp during medicine applying. By means of the scalp medicine applying device, it can be guaranteed that medicine is evenly output from each medicine applying pipe, and the medicine applying uniformity is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of drug application devices, and in particular to a scalp drug application device. Background Technology

[0002] With the improvement of people's living standards and the enhancement of health awareness, scalp problems are receiving increasing attention, especially issues such as hair loss, seborrheic dermatitis, and dandruff. As an important component of the skin system, the health of the scalp not only affects hair growth but is also closely related to multiple physiological functions such as the skin barrier, immune regulation, and sebum secretion. Therefore, scalp medication and care have become a hot topic in dermatology, trichology, and other fields. The difficulty in scalp medication lies in the fact that the presence of hair significantly hinders the successful delivery of medication to the scalp, and inaccurate or insufficient dosages often lead to clinical treatment failure. Scientific drug delivery devices are crucial for accurate scalp medication and successful treatment.

[0003] With technological advancements, scalp medication application devices have emerged. Some of these devices resemble droppers, with a silicone tip at the end and multiple application tubes at the front. These application tubes are typically made of stainless steel and arranged in an array, sharing a single silicone reservoir. The medication is applied to the scalp by squeezing the silicone tip. The problem with this shared reservoir is that the dispensing rate from each tube cannot be consistent. Often, the tube that is blocked or narrowed dispenses much slower, or even none at all. Furthermore, when the device is held at an angle, resulting in different horizontal positions of the tube outlets, the lower tubes tend to dispense more medication, while the higher tubes may not dispense any medication and may even allow air to enter. Additionally, in devices with ball-operated application tubes, the ball can easily get stuck in the hair. In addition, there are some drug delivery devices that mimic the principle of ink dispensing from a pen, relying on gravity to dispense the liquid. The problem with these devices is that when the device is tilted or inverted, the liquid cannot flow smoothly. Therefore, there is an urgent clinical need for scalp drug delivery devices that can actively and uniformly dispense liquid at a strictly consistent rate from each tube to ensure that the amount of medication reaching the scalp is uniform.

[0004] Furthermore, in existing drug delivery devices, the outlets of all the application tubes are on a single plane. However, the top of a person's head is spherical, not flat, and the curvature of the top of different people's heads is different. Even the curvature of different parts of the top of the same person's head is different. This means that when applying medication, only some of the application tubes of the existing drug delivery devices can actually contact the scalp. The application tubes that do not contact the scalp apply the medication to the hair and are wasted. Therefore, the medication is applied unevenly and is not successfully applied to the scalp. There is an urgent need for drug delivery devices whose outlets can adaptively conform to the different curvatures of the top of the head.

[0005] Current medication dispensers measure the amount of medication dispensed by squeezing the device or by using graduations (typically with a precision of 1 ml), which makes precise dosing difficult. For example, the dosage of commercially available hair growth medication finasteride spray is only 50 μl to 200 μl, and current dispensers cannot control such low-volume, microliter-level dosages. Furthermore, existing dispensers, which indicate the amount used via graduations, suffer from a lag in dosage indication; patients often only realize they have overdosed when checking the remaining liquid after use. Therefore, users urgently need a dispenser that can proactively control the volume of a single dose and precisely control the medication volume in microliter increments.

[0006] Other problems with existing drug delivery devices include the potential accumulation of dirt inside the storage chamber after prolonged use due to residual medication, crystallization, or external contaminants. Furthermore, when changing to different types of medication, cross-contamination can easily occur if the original medication residue is not thoroughly cleaned. However, in existing devices, the parts in contact with the medication and the device body are integrated, resulting in complex internal channels that cannot be thoroughly cleaned. This leads to the medication remaining contaminated for extended periods, affecting its quality.

[0007] Therefore, existing scalp medication devices suffer from uneven liquid dispensing, inability to dispense liquid continuously and smoothly, failure to contact the scalp, and inaccurate dosage. Utility Model Content

[0008] The purpose of this invention is to solve the problems of uneven liquid dispensing, inability to dispense liquid continuously and smoothly, failure to contact the scalp, and inaccurate dosage in existing scalp medication devices.

[0009] To solve the above-mentioned technical problems, the present invention discloses a scalp medication application device, including a driving unit, a medication dispensing unit, a medication storage unit and a medication application unit arranged sequentially along the length direction of the application device, wherein the driving unit can drive the medication dispensing unit to move along the length direction.

[0010] The application section includes multiple application tubes, which are spaced apart and protrude from the side of the storage section away from the discharge section. The storage section includes multiple storage cavities adapted to the application tubes. Each application tube is connected to a corresponding storage cavity, and each application tube has a discharge hole connected to the storage cavity at its end away from the storage cavity.

[0011] Furthermore, the dispensing unit includes a dispensing pusher and multiple piston rods. The multiple piston rods are fixedly connected to the dispensing pusher. Each piston rod can reciprocate within a corresponding medicine storage chamber. The driving unit can drive the dispensing pusher and the multiple piston rods to simultaneously push the liquid medicine in each medicine storage chamber and the medicine application tube out of the dispensing hole. The end of the medicine application tube where the dispensing hole is located contacts the scalp during application.

[0012] Using the above technical solution, the number of drug storage chambers and the number of drug application tubes in the scalp drug application device disclosed in this utility model are the same. That is, each drug application tube corresponds to an independent drug storage chamber, and each drug storage chamber is equipped with a piston push rod. The piston push rod can move back and forth in the drug storage chamber and discharge the drug. With this setting, when the piston push rods of multiple drug storage chambers advance synchronously, it can be ensured that all drug application tubes have the same liquid discharge speed and drug discharge volume, ensuring that the amount of drug applied on each skin area is strictly consistent. Even if the drug application device is tilted, inverted, or the pressure of each drug outlet 411 on the skin is different, it can still ensure that each drug application tube dispenses the drug evenly and smoothly, improving the uniformity of drug application.

[0013] Furthermore, multiple application tubes are spaced apart on the side of the drug storage section away from the drug dispensing section. Multiple application tubes can provide a larger application area when applying the drug, and can always be in contact with the scalp when moving on the scalp, applying the drug directly to the scalp. Moreover, the piston pusher method can ensure that each application tube dispenses the drug smoothly, and the method of dispensing the drug by the piston pusher is more accurate in terms of dosage.

[0014] Furthermore, in this invention, the end of the application tube containing the dispensing hole contacts the scalp during application. This design offers several advantages: it avoids hair obstruction or blockage, and prevents medication from adhering to the hair. The medication can be directly applied to the scalp through the dispensing hole without hair interference, resulting in more accurate drug delivery. Moreover, since the end of the application tube directly contacts the scalp, the amount of medication dispensed from the dispensing hole is essentially the same as the amount applied, allowing for precise dosage control, reducing waste, and improving efficiency, especially for low-dose medication. Furthermore, the direct contact of the end of the application tube with the dispensing hole allows the medication to act directly on the scalp after being dispensed, enabling rapid contact and penetration to enhance efficacy.

[0015] More preferably, the multiple application tubes are arranged in a single row and spaced apart, and each application tube can be elastically deformed along the length direction, or elastically deformed or deflected perpendicular to the length direction, or elastically displaced in the length direction.

[0016] Using the above technical solution, multiple application tubes are arranged in a single row perpendicular to the direction of travel, resulting in a larger application area. For example, they can be arranged in a straight line for more uniform application. As they move across the scalp, they remain in contact with the scalp at all times. Each application tube can elastically deform relative to its length, elastically deform or deflect perpendicular to its length, or elastically displace along its length. With this structure, when applying medication to spherical areas of the head with constantly changing curvature, the application tubes can elastically deform, deflect, or displace, ensuring that the ends of all application tubes with their dispensing holes are in contact with the scalp, thus achieving uniform application and ensuring that no scalp area is missed.

[0017] Furthermore, the ends of the multiple application tubes near the dispensing hole are arranged in an arc.

[0018] Using the above technical solution, the ends of multiple application tubes near the dispensing hole are arranged in an arc, which can better conform to the spherical shape of the top of the head. This allows for effective application of medication to the scalp, and the multiple application tubes ensure a large coverage area of ​​the scalp during medication application.

[0019] This utility model also discloses a scalp medication application device, wherein the driving unit is provided with a detection unit. A detection unit is provided on the application device at a position corresponding to the detection unit. The detection unit is a magnetic ring, and the detection unit is a Hall sensor.

[0020] By setting up a detection section and a detection section, the amount of medicine applied during application can be accurately detected. By using a Hall sensor and a magnetic ring in combination, the detection accuracy is even higher.

[0021] More preferably, the drive unit includes a drive motor, and the output end of the drive motor or a reduction gearbox connected to the drive motor is provided with a threaded transmission rod.

[0022] Wherein, a magnetic ring is provided on the threaded transmission rod; and / or, a magnetic ring is provided on the rotating shaft of the drive motor at the end away from the threaded transmission rod; and / or, a magnetic ring is provided on any transmission gear between the drive motor and the threaded transmission rod.

[0023] The applicator is equipped with a circuit board that is electrically connected to the drive motor, and a Hall sensor that is compatible with the magnetic ring is provided on the circuit board or on the corresponding component that is electrically connected to the circuit board.

[0024] Using the above technical solution, by setting up a Hall sensor and a magnetic ring in conjunction, the rotational speed, number of rotations, and rotational direction of the drive motor can be detected. This allows for precise control of the rotational number of the drive motor's output shaft and the threaded transmission rod, thereby precisely controlling the travel distance of the piston push rod and ultimately precisely controlling the amount of medicine dispensed from each medicine storage chamber and the application tube. Each rotation of the magnetic ring generates at least one magnetic pulse, which is fed back to the Hall sensor. When the drive motor and the threaded transmission rod are driven by a gear combination with a certain reduction ratio, each rotation of the magnetic ring corresponds to a fraction of a rotation of the threaded transmission rod. When the circuit board program is pre-set to allow... By stopping after the magnetic ring or threaded drive rod rotates a certain number of revolutions (or a fraction of a revolution), the volume of the dispensed liquid can be precisely controlled. The forward / backward distance of the piston rod can be precisely controlled by the number of revolutions (or fractions of a revolution), which is more accurate in controlling the dispensing volume at the micro-liter level than controlling the motor's rotation time. It should be noted that because the motor speed is affected by factors such as power supply voltage fluctuations and differences in the rated speed of different batches of motors, the number of revolutions of the piston rod cannot be precisely controlled by the motor's rotation time. The solution proposed in this application improves the accuracy of daily medication volume, ensuring the effectiveness and safety of medication.

[0025] The present invention also discloses a scalp medication application device. The middle part of the medication dispensing pusher is provided with an internal thread adapted to the threaded transmission rod. The drive motor can drive the threaded transmission rod to rotate. The threaded transmission rod is linked to the medication dispensing pusher to move back and forth along the length direction, so that multiple piston push rods move back and forth synchronously in each medication storage chamber.

[0026] By adopting the above technical solution, the driving component is set as a drive motor, which has the advantages of convenient control and fast response speed. The drive motor converts the rotational motion into the linear motion of the moving seat through a threaded transmission rod. This configuration allows for precise control of the dispensing amount, and the threaded connection between the moving seat and the threaded transmission rod is self-locking. When the motor stops, the moving seat can be relatively locked to prevent the liquid medicine from flowing out. Furthermore, multiple piston push rods move synchronously back and forth in each medicine storage chamber, enabling simultaneous pushing and conveying of medicine in multiple medicine storage chambers, ensuring consistent dispensing amounts in each medicine storage chamber and the application tube.

[0027] The present invention also discloses a scalp medication application device, which further includes at least one anti-rotation guide member. At least one end of the anti-rotation guide member is fixedly connected to the device housing, and the other end extends along the length direction. The medication dispensing pusher is provided with a guide hole adapted to the at least one anti-rotation guide member.

[0028] When the drive motor drives the threaded transmission rod to rotate, causing the moving seat and the drug-discharging pusher to move along the length direction, at least one anti-rotation guide can provide stable guidance for the moving seat and the drug-discharging pusher, making their stroke more stable when pushing the drug. Furthermore, the anti-rotation guide can also prevent the moving seat and the drug-discharging pusher from rotating during their length-direction movement.

[0029] The present invention also discloses a scalp medication application device, wherein the medication dispensing pusher includes a detachably connected movable seat and a pusher seat, the pusher seat being located on the side closer to the medication storage part than the movable seat, and multiple piston rods being connected to the pusher seat.

[0030] By adopting the above technical solution, the drug dispensing pusher is set as a detachable movable seat and a pusher seat. When it is necessary to replace or clean the drug dispensing section, drug storage section and drug application section, the movable seat and pusher seat can be quickly and easily disassembled and separated, which facilitates cleaning or quick replacement of the drug dispensing section, drug storage section and drug application section.

[0031] The present invention also discloses a scalp medication application device, wherein a drive unit and a medication storage unit are fixed inside the device housing of the application device. A circuit board is provided on the application device, and a first limit switch and a second limit switch are provided at intervals on the circuit board. The first limit switch and the second limit switch can limit the movement distance of the medication dispensing unit in the extension direction of the medication storage unit.

[0032] Two snap-fit ​​arms are also provided at intervals on one side of the applicator near the multiple applicator tubes. A dispensing seat is detachably provided between the two snap-fit ​​arms, and multiple applicator tubes are provided at intervals on the dispensing seat.

[0033] By adopting the above technical solution, the device housing can protect the internal drive unit, drug dispensing unit, and drug storage unit. The first limit switch and the second limit switch can limit the movement distance of the drug dispensing pusher in the extension direction of the drug storage unit. When the drug dispensing pusher or push rod reaches the end of its forward or backward movement, the first limit switch and the second limit switch can provide a signal to the motor to stop, thus preventing the motor from burning out or damaging the components.

[0034] Furthermore, the mounting base is equipped with two snap-fit ​​arms and a detachable dispensing seat, which can support multiple dispensing tubes during normal use. When cleaning is required, the dispensing arm can be disassembled as needed for thorough cleaning of the dispensing tubes.

[0035] Furthermore, the device housing is equipped with two snap-fit ​​arms and a detachable dispensing seat, which can support multiple dispensing tubes during normal use. When replacement or cleaning is required, the dispensing seat can be disassembled as needed.

[0036] This utility model also discloses a scalp medication application device, which includes a protective cup cover. The protective cup cover is detachably disposed on one side of the medication application tube, and has a protective chamber for accommodating the medication application tube. Furthermore, the bottom of the protective cup cover has a fitting portion with through holes adapted to multiple medication application tubes, and the other side of the fitting portion has a detachable cup cover base plate for blocking the other side of the through holes.

[0037] By adopting the above technical solution, the protective cup cap disclosed in this application can seal and protect the application section when not in use, blocking external dust, droplets, etc. Furthermore, the fitting part inside the protective cup cap can be adapted to the application tube to prevent the medicine inside the tube from drying out or evaporating. The protective cup cap can also act as a container for replenishing the medicine when injecting liquid into the storage chamber; that is, after removing the bottom plate of the cup cap, one end of the fitting part is connected to the head of the application tube, thereby completing the function of connecting the liquid contained in the protective cup cap to the outlet of the application tube through the through hole. Attached Figure Description

[0038] Figure 1 A schematic diagram of the scalp medication application device provided by this utility model after removing the device housing;

[0039] Figure 2 An exploded structural diagram of the detachable connection of the drug dispensing pusher of the scalp drug application device provided by this utility model;

[0040] Figure 3 A partial structural diagram of the application section of the scalp medication application device provided by this utility model;

[0041] Figure 4 A partial structural diagram of the drive unit, drug dispensing unit, drug storage unit, and circuit board of the scalp medication application device provided by this utility model;

[0042] Figure 5 A partial structural diagram of the dispensing section and piston rod of the scalp medication application device provided by this utility model;

[0043] Figure 6 A schematic diagram of the overall structure of the scalp medication application device provided by this utility model;

[0044] Figure 7 A schematic diagram showing the protective cup cap of the scalp medication application device provided by this utility model being inverted and filled with medication;

[0045] Figure 8 A schematic diagram showing the deformation of the application tube of the scalp medication application device provided by this utility model under stress.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. Drive unit;

[0048] 110. Drive component; 130. Threaded transmission rod; 140. Magnetic ring;

[0049] 200. Discharge Department;

[0050] 210. Drug ejection actuator;

[0051] 211. Movable base; 212. First connecting protrusion; 213. First fastening connection hole;

[0052] 214. Push seat; 215. Second connecting protrusion; 216. Second fastening connection hole; 217. Fastener;

[0053] 220. Piston push rod;

[0054] 221. Rod section; 222. Piston section;

[0055] 300. Medicine Storage Department;

[0056] 310. Drug storage chamber; 320. Anti-rotation guide component;

[0057] 400. Medication Application Section;

[0058] 410. Application tube;

[0059] 411. Dispensing hole; 412. End of the application tube;

[0060] 420. Mounting bracket;

[0061] 421. Card-connecting arm; 422. Drug dispensing seat;

[0062] 500. Device housing;

[0063] 510. Circuit board;

[0064] 511. Hall effect sensor; 512. First limit switch; 513. Second limit switch;

[0065] 520, button;

[0066] 600. Protective cup lid;

[0067] 610. Adhesive part;

[0068] A. The length direction of the applicator. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0070] This embodiment discloses a scalp medication application device. Please refer to [link to relevant documentation]. Figure 1 The device includes a drive unit 100, a drug dispensing unit 200, a drug storage unit 300, and a drug application unit 400 arranged sequentially along the length of the application device. The length of the application device is as follows: Figure 1 As shown in direction A, the drive unit 100 can drive the drug dispensing unit 200 to move along the length direction.

[0071] It should be noted that, Figure 1 This is a structural diagram after removing the device housing 500. In the length direction of this scalp medication application device, the drive unit 100, the drug dispensing unit 200, the drug storage unit 300, and the drug application unit 400 are arranged in sequence. The drug storage unit 300 stores the drug, and the drug storage unit 300 and the drug application unit 400 are connected. The drive unit 100 can drive the drug dispensing unit 200 to move along the length direction, and then the drug in the drug storage unit 300 is discharged from the drug application unit 400.

[0072] The following is a brief description of the application section 400 and the storage section 300: Please refer to... Figure 1 The application section 400 includes multiple application tubes 410, which are spaced apart and protrude from the side of the storage section 300 away from the dispensing section 200. The storage section 300 includes multiple storage cavities 310 adapted to the application tubes 410. Each application tube 410 is connected to a corresponding storage cavity 310. Each application tube 410 has a dispensing hole 411 at its end away from the storage cavity 310, which is connected to the application tube 410 (see [link to relevant documentation]). Figure 3 Furthermore, the end 412 of the application tube, where the dispensing hole 411 is located, contacts the scalp during application. See the end 412 of the application tube for details. Figure 3 To facilitate application of the medicine, in this embodiment, the end 412 of the medicine application tube is preferably set as a hemispherical shape, and the medicine outlet 411 is located in the middle of the end 412 of the medicine application tube.

[0073] Specifically, in this embodiment, the end 412 of the application tube, where the dispensing hole 411 is located, contacts the scalp during application. The advantages of this design are: it avoids hair obstruction or blockage, and prevents the drug from adhering to the hair. The drug can be directly applied to the scalp through the dispensing hole 411 without interference from hair, resulting in more accurate drug delivery. Furthermore, since the dispensing hole 411 is located at the end 412 of the application tube, directly contacting the scalp, even when the application device is tilted, the end 412 remains in contact with the scalp. After the drug is quantitatively extruded from the dispensing hole 411, the extruded amount is essentially the same as the applied amount, enabling precise control of the dosage, reducing drug waste, and improving medication efficiency, especially for low-dose medication control. Moreover, because the end 412 of the application tube, where the dispensing hole 411 is located, directly contacts the scalp, the drug acts directly on the scalp after being extruded from the dispensing hole 411, allowing the drug to quickly contact and penetrate the scalp, thus improving efficacy.

[0074] It should be noted that the arrangement of the drug storage chamber 310 within the device housing 500 is not limited. For example, the drug storage chamber 310 can be a fixedly arranged drug storage tube, with a drug storage chamber 310 formed in each drug storage tube. Alternatively, the drug storage chamber 310 can be multiple cavities hollowed out in an integral structure, with each cavity constituting a drug storage chamber 310. Those skilled in the art can design or adjust it according to actual needs, and this embodiment does not impose specific limitations on it.

[0075] The medication application unit 400 includes multiple medication application tubes 410. When applying medication, medication can be dispensed from the outlet holes 411 of all the medication application tubes 410, thus improving the efficiency and area of ​​medication application. Furthermore, the medication storage unit 300 is configured with multiple medication storage chambers 310, the same number as the medication application tubes 410. Each medication storage chamber 310 is connected to a corresponding medication application tube 410. Thus, when applying medication, the medication dispensed from the outlet hole 411 of each medication application tube 410 is the medication in the corresponding medication storage chamber 310. This configuration allows for more uniform medication dispensing, ultimately resulting in more even application of medication to the scalp.

[0076] It should be noted that, in this embodiment, the application part 400 and the storage part 300 are preferably set as an integral part, and each application tube 410 and each storage cavity 310 are connected by a corresponding connecting tube. The inside of the connecting tube has a drug outlet channel, and the connecting tube is preferably set as a flexible tube, which is convenient for arrangement and bending.

[0077] The following is a brief explanation of the drug dispensing section 200: Please refer to... Figure 1 The discharging unit 200 includes a discharging pusher 210 and multiple piston rods 220. The multiple piston rods 220 are all fixedly connected to the discharging pusher 210. That is, the discharging pusher 210 is fixedly connected to multiple piston rods 220 at the same time. Each piston rod 220 is inserted into a corresponding medicine storage chamber 310. Each piston rod 220 can reciprocate within a corresponding medicine storage chamber 310. The driving unit 100 can drive the discharging pusher 210 and the multiple piston rods 220 to push the liquid medicine in each medicine storage chamber 310 and the medicine application tube 410 to be discharged from the medicine outlet 411.

[0078] It should be noted that the fixed connection method between the multiple piston push rods 220 and the drug discharging pusher 210 is not limited. For example, the multiple piston push rods 220 and the drug discharging pusher 210 can be integrally formed, or the multiple piston push rods 220 and the drug discharging pusher 210 can be fixedly snapped together, or the multiple piston push rods 220 and the drug discharging pusher 210 can be fixedly connected by threads, etc.

[0079] For example, in a preferred embodiment, see Figure 5Each piston rod 220 can also be fixed to the drug dispensing pusher 210 by means of a threaded connection. More specifically, in this embodiment, each piston rod 220 can also be fixed to the pusher seat 214 by means of a threaded connection. For example, the pusher seat 214 is set as a circular structure, and multiple threaded connection seats are provided on the side of the drug dispensing pusher 210 facing the piston rod 220. A connecting thread is provided at the end of each piston rod 220. The advantage of this setting is that each individual piston rod 220 and drug dispensing pusher 210 can be disassembled and cleaned. In another usage mode, when one or more piston rods 220 are damaged or cannot be used, new piston rods 220 can be replaced for use.

[0080] It should be further noted that the specific structure of the driving component 110 in this embodiment is not limited. For example, the driving component 110 can be a drive motor, such as a servo motor. A lead screw transmission mechanism or a screw transmission mechanism can be set at the output end of the servo motor to convert the rotation output by the servo motor into linear motion that drives the moving seat 211 to move. For example, the driving component 110 can also be a linear motor or a drive cylinder to directly output linear movement and drive the moving seat 211 to move back and forth along the length direction. Those skilled in the art can design according to actual needs, and this embodiment does not make specific limitations in this regard.

[0081] Furthermore, in some usage scenarios, the discharging section 200 and the storage section 300 can be separated. During separation, multiple piston rods 220 can be pulled out from multiple storage chambers 310. At this time, each piston rod 220 and each storage chamber 310 are separated, allowing for thorough cleaning of each piston rod 220 and the storage chamber 310. This removes residual medicine and sediment from the pistons of the piston rods 220 and from the dead corners of the storage chambers 310. Compared to the traditional method of repeatedly pumping out cleaning fluid, this method of disassembly and separation followed by cleaning is more thorough and cleaner.

[0082] It should be noted that in this embodiment, the specific number of the application tube 410, the storage chamber 310, and the piston rod 220 is not limited, but preferably the number of the application tube 410, the storage chamber 310, and the piston rod 220 is set to be the same, so that one storage chamber 310, one piston rod 220, and one application tube 410 are used in pairs. For example, the number of application tubes 410, storage chambers 310, and piston rods 220 can be 10, 12, 14, 15, or other numbers. This embodiment does not limit this number.

[0083] With the design of this application, the number of drug storage chambers 310 and the number of drug application tubes 410 in the scalp drug application device are the same. That is, each drug application tube 410 corresponds to an independent drug storage chamber 310, and each drug storage chamber 310 is equipped with a piston push rod 220. The piston push rod 220 can move back and forth in the drug storage chamber 310 and discharge the drug. With this setting, when the piston push rods 220 of multiple drug storage chambers 310 advance synchronously, it can be ensured that all drug application tubes 410 have the same liquid discharge speed and drug discharge volume, ensuring that the amount of drug applied to each skin area is strictly consistent. Even if the drug application device is tilted, inverted, or the pressure of each drug outlet on the skin is different, it can still ensure that each drug application tube 410 dispenses the drug evenly and smoothly.

[0084] Furthermore, multiple application tubes 410 are spaced apart on the side of the drug storage section 300 away from the drug dispensing section 200. Multiple application tubes 410 can provide a larger application area when applying the drug, and can always be in contact with the scalp when moving on the scalp, applying the drug directly to the scalp. Moreover, the piston push rod 220 pushes the drug forward, ensuring that each application tube 410 dispenses the drug smoothly, and the method of pushing the drug with the piston push rod 220 makes the dosage more accurate.

[0085] Further, please see Figure 1 The medicine storage section 300 is configured with multiple medicine storage chambers 310, and the medicine discharge section 200 includes a medicine discharge pusher 210 and multiple piston push rods 220. During cleaning, the piston push rods 220 and the medicine storage chambers 310 can be separated to thoroughly clean the medicine storage chambers 310 and the piston push rods 220, avoiding dirt accumulation or cross-infection during medicine changes.

[0086] This embodiment also discloses a scalp medication application device; please refer to [link / reference]. Figure 1 and Figure 3 Multiple application tubes 410 are arranged in a single row and spaced apart. Furthermore, each application tube 410 can elastically deform along its length, or elastically deform or deflect perpendicular to its length, or elastically displace along its length. It should be noted that... (See also...) Figure 1 ,exist Figure 1 In the state shown, the length direction is the same as the height direction.

[0087] It should be noted that the coating tube 410 disclosed in this application can be made of an elastic and deformable material. For example, when the coating tube 410 is made of an elastic and deformable material, it can be made of elastic and deformable materials such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), nylon (PA), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene copolymer (ABS), rubber, thermoplastic polyurethane, and silicone.

[0088] The following is a more detailed explanation of how each application tube 410 of the scalp medication application device disclosed in this application can elastically deform along its length, or elastically deform or deflect perpendicular to its length, or elastically displace in its length direction:

[0089] Each application tube 410 is designed to be elastically deformable along its length. Each application tube 410 can be made of an elastically deformable material. During the application process, each application tube 410 may undergo the same or different slight deformations. For example, when the application tube 410 is used vertically and subjected to a force along its height, each application tube 410 can elastically deform along its length.

[0090] For example, each application tube 410 can be made of an elastically deformable material, and during the application process, when the application end of the application tube 410 is subjected to a lateral force, the application tube 410 may undergo elastic deformation along a direction perpendicular to its length. See [link to relevant documentation]. Figure 8 When subjected to lateral forces from different directions, the application tube 410 undergoes elastic deformation, but the end 412 of the application tube always remains in contact with the scalp, ensuring that the medication can be applied evenly. It's important to understand that because the application tube 410 is made of an elastically deformable material, when the application end of the tube 410 is subjected to lateral forces from different directions, depending on the direction of the force, the application tube 410 may undergo elastic deformation along a direction perpendicular to its length, i.e., as... Figure 8 As shown, elastic deformation can occur in different directions.

[0091] In another feasible solution, each application tube 410 is made of a rigid material. When the application end of the application tube 410 is subjected to a lateral force, it will deflect perpendicular to the length direction. That is, the entire application tube 410 may swing at a small angle. Specifically, when the application tube 410 is made of a rigid material, it can be made of stainless steel, rigid plastics, etc. (such as polymethyl methacrylate (acrylic), polyoxymethylene (POM), polystyrene, polycarbonate (PC)).

[0092] Furthermore, to enable each application tube 410 to elastically deflect along a direction perpendicular to its length, an elastic element (not shown in the figure) can be provided at the end of each application tube 410 near the device housing 500. For example, the elastic element can be a spring sheet, elastic rubber, or elastic silicone at the end of the application tube 410 near the device housing 500. With such a structure, each application tube 410 can undergo a small angle of elastic deflection, such as a deflection angle of 5°, 8°, 10°, or other angles. During the application process, the end 412 of each application tube contacts the scalp, and when the device moves to apply the medicine, each application tube 410 can elastically deflect to ensure that the end 412 of each application tube is always in contact with the scalp, thereby ensuring that the medicine can be applied evenly. It should be noted that because the end of the application tube 410 is provided with an elastic element, the application tube 410 will return to its initial vertical state after the medicine is applied.

[0093] For example, if each application tube 410 is designed to be elastically displaceable along its length, each application tube 410 can be made of a rigid material, and an elastic structure such as a helical spring or a bellows can be provided at the end of each application tube 410 near the device body. This elastic structure can generate elastic displacement along the length of the application tube 410. With such a structure, each application tube 410 can elastically displace along its length. For example, the elastic displacement can be upward or downward by 0.1mm, 1mm, 2mm, 3mm, or other displacement dimensions. During the application process, each application tube 410 contacts the scalp. When the device moves to apply the medication, the application tube 410 can elastically displace along its length, and the elastic displacement of different application tubes 410 may be different, so that the end 412 of each application tube will always be in contact with the scalp, thereby ensuring that the medication can be applied evenly. Similarly, the application tube 410 will return to its initial state after the medication is applied.

[0094] In other words, each application tube 410 disclosed in this application can be designed with the aforementioned materials or elastic structures to ensure that the application end of each application tube 410 remains in contact with the scalp during the application process, thereby improving the uniformity of the applied medication. Those skilled in the art can design or adjust the application tube 410 according to actual needs; this embodiment does not impose a unique limitation in this regard.

[0095] With this structural design, multiple application tubes 410 are arranged in a single row, resulting in a larger application area. For example, the multiple application tubes 410 can be arranged in a straight line, an arc, or a curve, ensuring they remain in contact with the scalp as they move. Each application tube 410 can elastically deform relative to its length, elastically deform or deflect perpendicular to its length, or elastically displace in its length direction. With this structure, when applying medication to the scalp, the application tubes 410 in spherical areas of the head can elastically deform, deflect, or displace, ensuring that the dispensing holes 411 of all application tubes 410 are in contact with the scalp to achieve uniform medication application.

[0096] This embodiment also discloses a scalp medication application device. See [link to relevant documentation] Figure 1 and Figure 3 The ends of multiple application tubes 410 near the dispensing hole 411 are arranged in an arc shape, with the diameter of the arc ranging from 12 cm to 20 cm. It should be noted that setting the ends of the multiple application tubes 410 near the dispensing hole 411 to an arc shape better conforms to the spherical shape of the scalp. The diameter of the arc can be 12 cm, 16 cm, 18 cm, 20 cm, etc., and those skilled in the art can design and adjust it according to actual needs; this embodiment does not impose specific limitations on this.

[0097] The number of application tubes 410 ranges from 6 to 36, with no more than 20 tubes per row. The application tubes 410 can be arranged in one or more rows, with each row containing 8, 10, 12, or any number not exceeding 20. This ensures a large coverage area of ​​the scalp when applying the medication while preventing the application end of the device from being too wide. Furthermore, the length of each application tube 410 can be 5mm, 20mm, 30mm, 50mm, or any value within the range of 5-50mm, allowing it to penetrate deep into the hairline for better contact with the scalp and ensuring the medication acts directly on the area of ​​the scalp requiring application.

[0098] This embodiment also discloses a scalp medication application device. The drive unit 100 is equipped with a detection unit, the specific location of which is not limited; for example, it can be located at the output end. A detection unit is provided on the application device at a position corresponding to the detection unit. The detection unit is a magnetic ring, and the detection unit is a Hall sensor.

[0099] It should be noted that the detected part and the detection part in this embodiment can also be set as other components besides the magnetic ring and the Hall sensor. For example, the detected part can be a photoelectric unit and the detection part can be a photoelectric sensor, or the detected part can be a pressure block and the detection part can be a pressure sensor. In this embodiment, the detection part is preferably set as a magnetic ring and the detection part is set as a Hall sensor.

[0100] Further preferred, please refer to Figure 4 The drive unit 100 has a drive component 110 configured as a drive motor. The output end of the drive motor or a reduction gearbox (not shown) connected to the drive motor is provided with a threaded transmission rod 130. A magnetic ring 140 is provided on the threaded transmission rod 130; and / or, a magnetic ring 140 is provided on the rotating shaft of the drive motor at the end away from the threaded transmission rod 130. And / or, a magnetic ring 140 is provided on any transmission gear between the drive motor and the threaded transmission rod 130.

[0101] Please continue reading Figure 4 The applicator is equipped with a circuit board 510 electrically connected to the drive motor, and a Hall sensor 511 adapted to the magnetic ring 140 is provided on the circuit board 510 or on a corresponding component electrically connected to the circuit board 510. The corresponding component electrically connected to the circuit board 510 can be other circuit boards, connecting plates, or other structures of the applicator, and this embodiment does not specifically limit it.

[0102] Specifically, the magnetic ring 140 can be provided only on the threaded transmission rod 130, or only on the rotating shaft of the drive motor at the end away from the threaded transmission rod 130, or on both the threaded transmission rod 130 and the rotating shaft of the drive motor at the end away from the threaded transmission rod 130, or on any transmission gear between the drive motor and the threaded transmission rod 130. Those skilled in the art can design or adjust according to actual needs. Preferably, see [reference needed]. Figure 1 and Figure 4 In this embodiment, a magnetic ring 140 is provided on the rotating shaft at the end of the drive motor away from the threaded transmission rod 130, and a Hall sensor 511 corresponding to and adapted to the magnetic ring 140 is provided on the circuit board 510 at the corresponding position.

[0103] This design incorporates a drive motor as the driving component 110, which offers advantages such as convenient control and fast response. By using a Hall sensor 511 in conjunction with a magnetic ring 140, the rotational speed, number of rotations, and direction of the drive motor can be detected. This allows for precise control of the number of rotations of the drive motor's output shaft, thereby precisely controlling the amount of medicine dispensed from the piston push rod 220 in each medicine storage chamber 310 and the medicine application tube 410, resulting in higher control precision during medicine application.

[0104] It should be noted that the Hall sensor 511 can be configured as a Hall encoder. The Hall encoder reads the pulse signal emitted by the rotation of the magnetic ring 140 to record the number of rotations of the motor or threaded drive rod 130. By setting a target number of rotations through a program, the stroke length of the piston push rod 220 can be precisely controlled, thereby achieving precise control of the dispensing volume. This control method greatly improves the accuracy and precision of the dispensing volume compared to the traditional time-based method, significantly increasing the accuracy of the daily medication volume and ensuring the effectiveness and safety of medication.

[0105] Specifically, each rotation of the magnetic ring generates at least one magnetic pulse, which is fed back to the Hall sensor. When the drive motor and the threaded transmission rod are driven by a gear combination with a certain reduction ratio, the threaded transmission rod rotates a fraction of a revolution for each rotation of the magnetic ring, such as half a revolution or one-third of a revolution. If the circuit board program is pre-set to allow the magnetic ring or threaded transmission rod to rotate a certain number of revolutions (or fractions of a revolution) before stopping, the volume of the dispensed liquid can be precisely controlled. The forward / backward distance of the piston rod can be precisely controlled by the number of revolutions (or fractions of a revolution), which is more accurate at the micro-liter level than controlling the liquid volume by the motor's rotation time. Because the motor speed is affected by factors such as power supply voltage fluctuations and differences in rated speed between different batches of motors, the number of revolutions of the piston rod cannot be precisely controlled by the motor's rotation time.

[0106] It should be noted that the Hall encoder reading the pulse signal of the magnetic ring 140 to record the number of rotations of the motor or the threaded transmission rod 130 is existing technology. The piston push rod 220 can be precisely controlled by setting the target number of rotations in the program to control the forward or backward stroke length according to the requirements. This embodiment will not elaborate on this.

[0107] The embodiment of this invention also discloses a scalp medication application device. The middle part of the medication dispensing pusher 210 is provided with an internal thread (not shown in the figure) that is adapted to the threaded transmission rod. The drive motor can drive the threaded transmission rod 130 to rotate. The threaded transmission rod 130 is linked to the medication dispensing pusher 210 to move back and forth along the length direction, so that multiple piston push rods 220 move back and forth synchronously in each medication storage chamber 310.

[0108] The drive motor converts the rotary motion into the linear motion of the dispensing pusher 210 via the threaded transmission rod 130. This configuration allows for precise control of the dispensing volume. Furthermore, the threaded connection between the dispensing pusher 210 and the threaded transmission rod provides self-locking; when the motor stops, the dispensing pusher 210 is relatively locked to prevent liquid leakage. Additionally, multiple piston pushers 220 reciprocate synchronously within each drug storage chamber 310, enabling simultaneous pushing and conveying of the drug within multiple storage chambers 310, ensuring consistent dispensing volume across all storage chambers 310 and the application tube 410.

[0109] This embodiment also discloses a scalp medication application device; please refer to [link / reference]. Figure 1 and Figure 4 The scalp medication application device also includes at least one anti-rotation guide 320 spaced apart. At least one end of the anti-rotation guide is fixedly connected to the device housing, and the other end extends along the length direction. The medication dispensing pusher is provided with a guide hole (not shown in the figure) adapted to the at least one anti-rotation guide.

[0110] Specifically, the number of anti-rotation guides 320 is not limited. For example, it can be set to 1, 2, 3, 4 or other numbers. In this embodiment, it is preferred to set 2. One end of the two anti-rotation guides 320 is fixedly connected to the medicine storage part 300, and the other end extends along the length direction. It should be noted that at least one anti-rotation guide can also be fixedly connected to the device housing by bolts, screws or other components. It can be understood that when only one anti-rotation guide is set, it can be set as a square guide rod or other structure. In this embodiment, two anti-rotation guides 320 are set, and both are set as cylindrical guide rods.

[0111] With this structural design, when the drive motor drives the threaded transmission rod 130 to rotate, causing the moving seat 211 and the drug-discharging pusher 210 to move along the length direction, multiple anti-rotation guide members 320 can provide stable guidance for the drug-discharging pusher 210, making the stroke of the drug-discharging pusher 210 more stable when moving and pushing the drug. Furthermore, the anti-rotation guide members 320 can also prevent the drug-discharging pusher 210 from rotating during its length-direction movement.

[0112] It should be noted that the drug delivery pusher 210 can be a single piece or multiple detachably connected components, for example, please refer to [link to relevant documentation]. Figure 2 In this embodiment, the drug dispensing pusher 210 includes a detachably connected movable seat 211 and a pusher seat 214. The pusher seat 214 is located closer to the drug storage section 300 than the movable seat 211, and multiple piston rods are connected to the pusher seat 214.

[0113] The connection method between the movable base 211 and the push base 214 is described in [reference]. Figure 2The movable seat 211 is provided with a first connecting protrusion 212 at one end facing the push seat 214. The first connecting protrusion 212 is provided with a first fastening connection hole 213. Specifically, in this embodiment, four first connecting protrusions 212 are provided at intervals, and each first connecting protrusion 212 is provided with two first fastening connection holes 213.

[0114] The push seat 214 has a second connecting protrusion 215 at the end facing the moving seat 211. Specifically, in this embodiment, there are two second connecting protrusions 215. The two second connecting protrusions 215 fit into the slots of the four first connecting protrusions 212. The second connecting protrusions 215 are provided with second fastening connecting holes 216 that fit into the first fastening connecting holes 213, and each second connecting protrusion 215 is provided with two corresponding second fastening connecting holes 216.

[0115] And please see Figure 2 The scalp medication application device also includes fasteners 217 for fixing the first connecting protrusion 212 and the second connecting protrusion 215. Preferably, in this embodiment, two fasteners 217 are provided. The first connecting protrusion 212 and the second connecting protrusion 215 are relatively adapted to each other, and the first fastening connecting hole 213 and the second fastening connecting hole 216 are correspondingly adapted to each other. The fasteners 217 can pass through the first fastening connecting hole 213 and the second fastening connecting hole 216 in sequence and fix the moving seat 211 and the medication dispensing pusher 210.

[0116] It should be noted that the specific structure of fastener 217 is not limited; for example, it can be a pin, screw, etc.

[0117] This design incorporates a drive motor as the driving component 110, which offers advantages such as convenient control and fast response. The drive motor converts the rotational motion into the linear motion of the dispensing pusher 210 via the threaded transmission rod 130. This configuration allows for precise control of the dispensing amount, and the threaded connection between the dispensing pusher 210 and the threaded transmission rod 130 provides self-locking capability. When the motor stops, the dispensing pusher 210 can be locked to prevent the liquid medicine from flowing out.

[0118] Furthermore, the movable seat 211 and the drug dispensing pusher 210 are aligned and adapted to each other through the first connecting protrusion 212 and the second connecting protrusion 215, which are mutually compatible and can be sleeved. Then, the movable seat 211 and the drug dispensing pusher 210 are fixed together by fasteners 217 passing through the first fastening connection hole 213 and the second fastening connection hole 216 on the first connecting protrusion 212 and the second connecting protrusion 215. This connection method has the advantages of high connection strength and convenient installation and disassembly.

[0119] This embodiment also discloses a scalp medication application device; please refer to [link / reference]. Figure 1 and Figure 5 Each piston rod 220 includes a rod portion 221 and a piston portion 222. The piston portion 222 is fixed to the end of the rod portion 221 away from the pusher. The end of each rod portion 221 away from the piston portion 222 can also be provided with an external thread. The piston rod 220 is detachably fixed to one side of the drug dispensing pusher 210 by means of threaded connection. A screw hole can also be provided on the drug dispensing pusher 210. It should be noted that each piston rod 220 can also be fixedly connected to the drug dispensing pusher 210 by adhesive bonding, snap-fit ​​or other means.

[0120] This embodiment also discloses a scalp medication application device. The driving part 100 and the medication storage part 300 are fixed inside the device housing of the application device. The fixing method of the driving part 100 and the medication storage part 300 is not limited. For example, the driving part 100 and the medication storage part 300 can be fixedly connected by fasteners, such as bolts or screws. The driving part 100 and the medication storage part 300 can also be fixed inside the device housing by adhesive. Alternatively, the driving part 100 and the medication storage part 300 can be integrally formed with the device housing. This embodiment does not specifically limit this.

[0121] The applicator is also equipped with a circuit board. The location and arrangement of the circuit board are not limited and can be designed or adjusted according to actual needs. For example, see [reference needed]. Figure 5 and Figure 6 In this embodiment, a circuit board 510 is provided on the device housing 500. A first limit switch 512 and a second limit switch 513 are provided on the circuit board 510 at intervals. The first limit switch 512 and the second limit switch 513 can limit the movement distance of the drug dispensing pusher 210 in the extension direction of the drug storage section 300. It should be noted that the extension direction of the drug storage section 300 is the same as the length direction of the scalp drug application device.

[0122] It should be noted that, see Figure 6 The outer side of the device housing 500 is also provided with multiple buttons 520, such as power indicator light, liquid guiding button, power button, liquid aspiration button, etc. in this embodiment.

[0123] Furthermore, two snap-fit ​​arms 421 are provided at intervals at one end of the applicator near the multiple applicator tubes 410, and a dispensing seat 422 is detachably provided between the two snap-fit ​​arms 421, with multiple applicator tubes 410 provided at intervals on the dispensing seat 422.

[0124] With this structural design, the device housing 500 can protect the drive unit 100, the dispensing unit 200, and the storage unit 300. The first limit switch 512 and the second limit switch 513 can limit the movement distance of the dispensing pusher 210 in the extension direction of the storage unit 300. When the dispensing pusher 210 or the push rod reaches the end of its forward or backward movement, the first limit switch 512 or the second limit switch 513 can provide a signal to stop the motor, thus preventing the motor from burning out or damaging the components.

[0125] Furthermore, the mounting base 420 is provided with two snap-fit ​​arms 421 and a detachable dispensing base 422, which can support multiple dispensing tubes 410 during normal use. When cleaning is required, the dispensing base can be disassembled as needed to thoroughly clean the dispensing tubes 410.

[0126] This embodiment also discloses a scalp medication application device; please refer to [link / reference]. Figure 1 and Figure 6 It also includes a protective cup lid 600, which is detachably mounted on one side of the application tube 410. The protective cup lid 600 has a protective chamber for accommodating the application tube 410. Furthermore, the bottom of the protective cup lid 600 is provided with a fitting portion 610, which has through holes adapted to the multiple application tubes 410. On the other side of the fitting portion is a detachable cup lid base plate (not shown in the figure) that can block the other side of the through holes.

[0127] Specifically, the bottom of the protective cup lid 600 has a through hole corresponding to the application tube 410. This through hole is located within the fitting portion 610 and is sealed by the cup lid base plate. When the protective cup lid 600 is sealed by the cup lid base plate, the cup lid fits over the application tube 410, preventing liquid evaporation. After removing the cup lid base plate, see [link to product description]. Figure 7 When inserted with the opening facing upwards into the end of the application tube 410, it acts as a container. The liquid medicine contained in the protective cup lid 600 enters the application tube 410 through the through hole and is thus sucked into the medicine storage chamber 310.

[0128] It should also be noted that the specific structure and arrangement of the protective cup lid 600, the fitting part 610 and the cup lid base plate can be designed or adjusted according to actual needs, and this embodiment does not limit them to a single one.

[0129] With this structural design, the protective cup lid 600 disclosed in this application can seal and protect the application section 400 when not in use, blocking external dust, droplets, etc. Furthermore, the fitting part 610 inside the protective cup lid 600 can be adapted to the application tube 410 to prevent the medicine inside the application tube 410 from drying out or evaporating. The protective cup lid 600 can also act as a container for replenishing the medicine when injecting liquid into the medicine storage chamber 310; that is, after removing the bottom plate of the cup lid, one end of the fitting part 610 is connected to the head of the application tube 410, thereby completing the function of connecting the liquid contained in the protective cup lid 600 to the outlet of the application tube 410 through the through hole.

[0130] Finally, a brief description of how to use the scalp medication application device disclosed in this utility model will be provided:

[0131] Please see first. Figure 1 After removing the housing 500, the scalp medication application device includes a drive unit 100, a drug dispensing unit 200, a drug storage unit 300, and a drug application unit 400 arranged sequentially along the length of the application device. The drive unit 100 and the drug dispensing unit 200 are detachably connected. For details, please refer to [reference needed]. Figure 1 and Figure 2 The movable seat 211 of the drive unit 100 is provided with four first connecting protrusions 212, and the dispensing pusher 210 of the dispensing unit 200 is provided with two second connecting protrusions 215. The two second connecting protrusions 215 abut against the gaps between the four first connecting protrusions 212 and are fixed by two fasteners 217 (pins). When it is necessary to clean one or more of the dispensing unit 200, the storage unit 300, and the application unit 400, especially for example, the storage chamber 310 and the piston pusher 220 of the storage unit 300, the fasteners 217 can be removed to separate the movable seat 211 of the drive unit 100 and the dispensing pusher 210 of the dispensing unit 200 for easy cleaning.

[0132] During normal application, the medicine storage chamber 310 contains medicine. Press and hold the power button to turn on the device, so that the application tube 410 contacts the scalp. Then, press the start button, and the drive motor will drive the threaded transmission rod 130 to rotate, which will drive the moving seat 211 and the medicine dispensing pusher 210 to move along the length direction. Each piston pusher 220 pushes the medicine in the medicine storage chamber 310 to flow out of the medicine outlet 411. Because a Hall sensor 511 and a magnetic ring 140 are provided, the rotation speed, number of rotations and rotation direction of the drive motor can be detected, thereby accurately controlling the amount of medicine dispensed from each medicine storage chamber 310 and the application tube 410 by the piston pusher 220.

[0133] Please continue reading Figure 7In another usage method, the protective cup cap 600 can be used as a container to deliver medication to the scalp medication application device. Before use, remove the bottom plate of the cup cap, then invert the protective cup cap 600 and insert it into the end of the medication application tube 410. At this time, the protective cup cap 600 acts as a container, containing medication. Then, press and hold the power button to turn on the device, and then press the suction button to drive the motor to reverse and draw the medication contained in the protective cup cap 600 into the medication storage chamber 310. After suction, clean the protective cup cap 600 and install the bottom plate of the cup cap onto the medication application part 400 for protection.

[0134] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0135] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0136] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0137] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0138] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0139] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A scalp medication application device, characterized in that, The device includes a driving unit, a dispensing unit, a storing unit, and a applying unit arranged sequentially along the length of the device. The driving unit can drive the dispensing unit to reciprocate along the length direction. The medication application section includes multiple medication application tubes, which are spaced apart and protrude from the side of the medication storage section away from the medication dispensing section. The medication storage section includes multiple medication storage cavities adapted to the medication application tubes. Each medication application tube communicates with a corresponding medication storage cavity, and each medication application tube has a medication outlet at its end away from the medication storage cavity, which communicates with the medication application tube. The medication dispensing unit includes a medication dispensing pusher and multiple piston rods. The multiple piston rods are fixedly connected to the medication dispensing pusher. Each piston rod can reciprocate within a corresponding medication storage chamber. The driving unit can drive the medication dispensing pusher and the multiple piston rods to simultaneously push the liquid medicine in each medication storage chamber and the medication application tube to be discharged from the medication outlet. The end of the medication application tube where the medication outlet is located contacts the scalp during medication application.

2. The scalp medication application device as described in claim 1, characterized in that, Multiple application tubes are arranged in a single row and spaced apart; and Each of the aforementioned application tubes can elastically deform along its length, or elastically deform or deflect perpendicular to its length, or elastically displace along its length.

3. The scalp medication application device as described in claim 2, characterized in that, The ends of the multiple application tubes near the dispensing hole are arranged in an arc.

4. The scalp medication application device according to any one of claims 1 to 3, characterized in that, The driving unit is provided with a detection unit; the coating device is provided with a detection unit at a position corresponding to and adapted to the detection unit; wherein The part to be detected is a magnetic ring; the detection part is a Hall sensor.

5. The scalp medication application device as described in claim 4, characterized in that, The drive unit includes a drive motor, and the output end of the drive motor or the reduction gearbox connected to the drive motor is provided with a threaded transmission rod. in A magnetic ring is provided on the threaded transmission rod; and / or, a magnetic ring is provided on the rotating shaft of the drive motor at the end away from the threaded transmission rod; and / or, a magnetic ring is provided on any transmission gear between the drive motor and the threaded transmission rod. The applicator is provided with a circuit board that is electrically connected to the drive motor, and a Hall sensor that is adapted to the magnetic ring is provided on the circuit board or on a corresponding component that is electrically connected to the circuit board.

6. The scalp medication application device as described in claim 5, characterized in that, The middle part of the drug discharging pusher is provided with an internal thread that is adapted to the threaded transmission rod. The drive motor can drive the threaded transmission rod to rotate. The threaded transmission rod is linked to the drug discharging pusher to reciprocate along the length direction, so that the multiple piston push rods reciprocate synchronously in each of the drug storage chambers.

7. The scalp medication application device as described in claim 6, characterized in that, The application device further includes at least one anti-rotation guide, at least one end of the anti-rotation guide is fixedly connected to the device housing, and the other end extends along the length direction. The drug dispensing pusher is provided with a guide hole adapted to the at least one anti-rotation guide.

8. The scalp medication application device as described in claim 4, characterized in that, The drug dispensing pusher includes a detachably connected movable seat and a pusher seat, wherein the pusher seat is located closer to the drug storage section than the movable seat, and all of the plurality of piston push rods are connected to the pusher seat.

9. The scalp medication application device as described in claim 4, characterized in that, The driving unit and the drug storage unit are fixed within the device housing of the application device; wherein The applicator is equipped with a circuit board, on which a first limit switch and a second limit switch are spaced apart. The first limit switch and the second limit switch can limit the movement distance of the dispensing part in the extension direction of the storing part. The applicator is also provided with two snap-fit ​​arms at intervals on one side near the plurality of applicator tubes, and a dispensing seat is detachably provided between the two snap-fit ​​arms, with the plurality of applicator tubes arranged at intervals on the dispensing seat.

10. The scalp medication application device as described in claim 9, characterized in that, It also includes a protective cup cap, which is detachably disposed on one side of the application tube, and the protective cup cap has a protective chamber for accommodating the application tube; and The bottom of the protective cup lid is provided with a fitting part, and the fitting part is provided with through holes that are adapted to multiple medicine application tubes. On the other side of the fitting part, there is a removable cup lid bottom plate for blocking the other side of the through holes.

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