Automatic wetting device for hair follicle transplantation and wetting method thereof

Abstract

The invention relates to the technical field of medical instruments, and discloses an automatic wetting device for hair follicle transplantation and a wetting method thereof.The automatic wetting device comprises a base frame, a linear driving assembly and a wetting execution mechanism, and an operation table for bearing a hair follicle unit is arranged on the base frame; the linear driving assembly is installed on the base frame. The wetting executing mechanism is installed on the linear driving assembly, the linear driving assembly can drive the wetting executing mechanism to move to the position over the hair follicle unit, and the wetting executing mechanism is used for applying liquid to the hair follicle unit to wet the hair follicle unit. By means of the design, the wetting executing mechanism is allowed to move to the position over the hair follicle unit along the preset path, so that liquid is released to infiltrate the hair follicle unit, the auxiliary operation of moisturizing is completed, medical staff can concentrate on the main operation such as hair follicle separation and trimming, visual focusing and hand actions do not need to be interrupted to execute dripping or spraying actions, and the medical staff can conveniently and rapidly carry out operation. And the risk of moisturizing interruption caused by non-uniform attention distribution is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an automatic wetting device for hair follicle transplantation and a wetting method thereof. BACKGROUND

[0002] As an important technology in dermatology and plastic surgery, hair follicle transplantation has become an effective means for treating permanent hair loss (such as androgenic alopecia, cicatricial alopecia, etc.). Hair follicle transplantation technology usually extracts healthy hair follicle units from the donor area such as the back of the patient's head, and then transplants them to the area of baldness or sparse hair after appropriate processing. Although the current widely used follicular unit extraction (FUE) can reduce the trauma of the donor area and improve the efficiency of hair extraction, the hair follicle cells are extremely sensitive to ischemia, dryness and mechanical damage after being separated from the body, and their activity will gradually decrease with the extension of the time. Therefore, the clinical practice requires that the entire processing process from the extraction of the hair follicle to the implantation must be completed within the golden operation time limit of several hours, and the hair follicle must be maintained in an appropriate physiological environment.

[0003] A key step in the current hair follicle transplantation technology process is to finely separate and trim the extracted hair follicle units, i.e. to remove the fat and other excess tissues attached around the hair follicle. The purpose of this operation is to avoid the influence of fat tissue on the implantation depth, blood supply reconstruction and subsequent hair growth of the hair follicle in the recipient area.

[0004] At present, the method of physiological saline dripping at regular intervals is generally used to provide moisture protection for the separated hair follicles, which maintains the balance of cell osmotic pressure by continuously supplementing water to ensure the activity of the hair follicle during the separation operation. However, due to the extremely fine separation process of the hair follicle and fat, medical personnel need to invest a lot of attention and time under a microscope or magnifying glass. Because the operation is complex and requires full concentration, medical personnel are prone to neglect the continuous moisture maintenance of the separated hair follicles in actual work. In this case, the omission of physiological saline dripping at regular intervals is likely to occur, which causes the separated hair follicles to be in a dry environment for a long time, resulting in a significant decrease in cell activity and ultimately reducing the success rate of hair follicle transplantation and seriously affecting the clinical effectiveness of the operation. SUMMARY

[0005] The main purpose of the present application is to provide an automatic wetting device for hair follicle transplantation, which aims to improve the shortcomings of the above-mentioned prior art and solve the problem that medical personnel are prone to interrupt or forget the regular dripping of separated hair follicles due to high concentration during the separation and trimming operation, resulting in damage to the activity of the hair follicles due to dryness.

[0006] To achieve the above-mentioned purpose, the automatic wetting device for hair follicle transplantation provided by the present application comprises: A base frame, on which an operating table for supporting hair follicle units is provided; A linear drive assembly, which is mounted on the base frame; A wetting actuator is mounted on the linear drive assembly, which drives the wetting actuator to move directly above the hair follicle unit. The wetting actuator is used to apply liquid to the hair follicle unit to wet it.

[0007] Optionally, the wetting actuator includes a dripping actuator, which includes: First mounting bracket; The drive unit is mounted on the first mounting bracket; A drip assembly, wherein the drip assembly is mounted on the first mounting bracket; The drip assembly includes a tube body and a first push rod. At least a portion of the first push rod is movably mounted inside the tube body. A drip head is provided at the lower end of the tube body. The driving unit can drive the first push rod to move downward along the inner wall of the tube body so that the liquid inside the tube body drips downward from the drip head.

[0008] Optionally, the driving unit includes a driving component and a second push rod connected to the driving component. The first push rod and the second push rod are arranged in parallel and connected by a connector. The driving component can drive the second push rod to perform linear motion.

[0009] Optionally, the sidewall of the tube is provided with multiple scale lines, which are arranged at equal intervals along the axial direction of the tube.

[0010] Optionally, the wetting actuator includes a spraying actuator, which includes: The container body has a liquid inlet channel inside. The nozzle is installed at the lower end of the device body, and the nozzle is provided with a pressure chamber communicating with the liquid inlet channel and a spray hole communicating with the pressure chamber. A valve core assembly is movably mounted in the body of the device. The valve core assembly can switch between a first position and a second position. When the valve core assembly is in the first position, it extends into the pressure chamber and abuts against the chamber wall, so that the injection orifice is in a closed state. When the valve core assembly is in the second position, it separates from the chamber wall of the pressure chamber, so that the injection orifice is in an open state.

[0011] Optionally, the valve core assembly includes: A valve body, wherein the valve body and the injection hole are coaxially arranged; A screw regulator, wherein the screw regulator is installed at the upper end of the device body; An elastic element, one end of which abuts against the valve body, and the other end of which abuts against the screw regulator.

[0012] Optionally, the screw regulator includes: An adjusting screw, which is at least partially inserted into the body of the device, and the adjusting screw and the body are connected by a threaded connection; The T-shaped limiting component, wherein the adjusting screw and the T-shaped limiting component are fixedly connected; The T-shaped limiting member includes a lateral limiting part and a longitudinal guiding part. The elastic element abuts against the lateral limiting part, and the longitudinal guiding part is inserted into the inner cavity of the elastic element.

[0013] Optionally, the base frame includes: A support frame is installed below the operating table; Two mounting brackets are provided, both of which are mounted on the operating table and spaced apart. The linear drive assembly is mounted on both mounting brackets.

[0014] Optionally, the linear drive component includes: guide; A lead screw, which is mounted inside the guide rail; Two guide rods are provided, both of which are parallel to the lead screw and are installed inside the guide rail. The motor and the lead screw are connected by a belt drive, and the motor is used to drive the lead screw to rotate; A first slider is mounted on the lead screw and the two guide rods, and the first slider is connected to the dripping actuator. The second slider is mounted on the lead screw and the two guide rods, and is connected to the spraying actuator.

[0015] Furthermore, this application also provides a wetting method for the automatic wetting device as described above, comprising: The hair follicle unit is placed at a predetermined position on the operating table; The linear drive assembly drives the wetting actuator to move directly above the hair follicle unit; The wetting actuator applies liquid to the hair follicle unit to wet the hair follicle unit.

[0016] Beneficial Effects: The automatic wetting device for hair follicle transplantation proposed in this invention includes a base frame, a linear drive assembly, and a wetting actuator. The base frame has an operating platform for supporting hair follicle units. The linear drive assembly is mounted on the base frame. The wetting actuator is mounted on the linear drive assembly, which drives the wetting actuator to move directly above the hair follicle unit. The wetting actuator releases liquid onto the hair follicle unit to wet it. This design allows the wetting actuator to move along a predetermined path to directly above the hair follicle unit, thereby releasing liquid to wet the unit. Compared to manual spraying or dripping, which results in uneven liquid distribution due to hand tremors and distance estimation errors, the linear drive assembly in this application can drive the wetting actuator to a predetermined position, hovering at a constant interval directly above the hair follicle unit. This achieves consistency in release height, position, and coverage, ensuring the hair follicle unit is adequately wetted and maintaining a homogeneous wet state. Secondly, the automatic moisturizing device can independently complete the auxiliary operation of moisturizing, allowing medical staff to focus on the main operations such as hair follicle separation and trimming without interrupting visual focus and hand movements to perform dripping or spraying actions. This reduces the risk of moisturizing interruption due to uneven attention distribution, and continuously suppresses the dehydration stress response after hair follicle removal, thereby ensuring the structural integrity and cell vitality of the hair follicle and improving the survival rate of hair follicle transplantation. This solves the problem that medical staff are prone to interrupting or forgetting to regularly drip moisturize the removed hair follicles due to high concentration during hair follicle separation and trimming operations, which can lead to damaged activity of the hair follicles due to dryness. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the automatic wetting device for hair follicle transplantation disclosed in this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a partial structural schematic diagram of the linear drive component disclosed in this application; Figure 4 This is one of the three-dimensional structural schematic diagrams of the drip execution mechanism disclosed in this application; Figure 5 This is the second three-dimensional structural schematic diagram of the drip execution mechanism disclosed in this application; Figure 6This is a three-dimensional structural diagram of the spraying actuator disclosed in this application; Figure 7 This is a cross-sectional view of the spraying actuator disclosed in this application.

[0019] Explanation of icon numbers: 1. Base frame; 1a. Operating table; 11. Support frame; 12. Mounting bracket; 2. Linear drive assembly; 21. Guide rail; 22. Lead screw; 23. Guide rod; 24. Motor; 25. First slider; 26. Second slider; 3. Wetting actuator; 31. Drip actuator; 311. First mounting bracket; 312. Drive unit; 3121. Drive component; 3122. Second push rod; 313. Drip assembly; 3131. Tube body; 313 11. Drip head; 3132. First push rod; 32. Spraying actuator; 321. Body; 3211. Liquid inlet channel; 322. Nozzle; 3221. Pressure chamber; 3222. Spray hole; 323. Valve core assembly; 3231. Valve body; 3232. Screw regulator; 32321. Adjusting screw; 32322. T-type limiter; 32322a. Lateral limiter; 32322b. Longitudinal guide; 3233. Elastic element.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0025] Hair follicle transplantation, an important technique in dermatology and plastic surgery, has become an effective treatment for permanent hair loss (such as androgenetic alopecia and cicatricial alopecia). The procedure typically involves extracting healthy hair follicle units from donor areas such as the back of the head, processing them appropriately, and then transplanting them to bald or thinning areas. While the widely used follicular unit extraction (FUE) technique reduces donor site trauma and improves extraction efficiency, the hair follicle cells are extremely sensitive to ischemia, dryness, and mechanical damage after extraction, and their activity gradually decreases over time. Therefore, clinical practice requires that the entire process from follicle extraction to implantation be strictly controlled within the golden surgical timeframe of a few hours, and that the hair follicles be continuously maintained in a suitable physiological environment.

[0026] A key step in current hair follicle transplantation techniques is the meticulous separation and trimming of the extracted hair follicle units, specifically removing the fat and other excess tissue attached to the follicles. This procedure aims to prevent fatty tissue from affecting the implantation depth, blood supply restoration, and subsequent hair growth in the recipient area.

[0027] Currently, the common clinical practice is to use timed infusions of physiological saline to provide moisture protection for isolated hair follicles. This continuous replenishment of moisture maintains osmotic pressure balance within the cells, ensuring follicle activity during the separation process. However, the separation of hair follicles from fat is an extremely delicate procedure requiring highly concentrated attention and a considerable amount of time from medical personnel under a microscope or magnifying glass. Because of the complexity and the need for intense focus, medical personnel often neglect the continuous moisture maintenance of the isolated hair follicles. In such cases, the timed infusion of physiological saline is easily missed, resulting in the isolated hair follicles being in a dry environment for an extended period. This significantly reduces cell activity, ultimately lowering the success rate of hair follicle transplantation and severely impacting the clinical effectiveness of the surgery.

[0028] Based on this, embodiments of this application provide an automatic wetting device for hair follicle transplantation, see [link to relevant documentation]. Figures 1-2 As shown, the automatic wetting device includes a base frame 1, a linear drive assembly 2, and a wetting actuator 3. The base frame 1 is provided with an operating table 1a for supporting hair follicle units; the linear drive assembly 2 is mounted on the base frame 1; the wetting actuator 3 is mounted on the linear drive assembly 2, and the linear drive assembly 2 can drive the wetting actuator 3 to move directly above the hair follicle units. The wetting actuator 3 is used to apply liquid to the hair follicle units to wet them.

[0029] In this embodiment, the wetting actuator 3 can be moved along a predetermined path to directly above the hair follicle unit, thereby releasing liquid to wet the hair follicle unit. Compared with the uneven liquid distribution caused by hand tremors and distance estimation errors when manually spraying or dripping, the linear drive component 2 in this application can drive the wetting actuator 3 to move to a predetermined position and hover directly above the hair follicle unit at a constant interval, so as to achieve consistency in the application height, position and coverage, so that the hair follicle unit can be fully wetted, and ensure that the hair follicle is kept in a homogeneous wet state.

[0030] The automatic moisturizing device provided in this embodiment can independently complete the auxiliary operation of moisturizing. Medical staff can focus on the main operations such as hair follicle separation and trimming without interrupting visual focus and hand movements to perform dripping or spraying actions. This reduces the risk of moisturizing interruption caused by uneven attention distribution, and continuously suppresses the dehydration stress response after hair follicle separation, thereby ensuring the structural integrity and cell vitality of hair follicles and improving the survival rate of hair follicle transplantation. This solves the problem that medical staff are prone to interrupting or forgetting the timed drip moisturizing of detached hair follicles due to high concentration during hair follicle separation and trimming operations, which leads to the damage to the activity of hair follicles due to dryness.

[0031] In one embodiment of this application, the wetting actuator 3 includes a dripping actuator 31, which is mounted on a linear drive assembly 2. The linear drive assembly 2 can drive the dripping actuator 31 to move to a predetermined position according to a preset displacement trajectory, thereby dripping liquid onto the hair follicle unit to wet the hair follicle unit.

[0032] In this embodiment, the hair follicle unit specifically refers to the ex vivo hair follicle tissue that is extracted from the donor area (such as the back of the head) and placed on the operating table 1a to await separation, trimming or transplantation during hair transplantation surgery.

[0033] In another embodiment of this application, the wetting actuator 3 includes a spraying actuator 32, which is mounted on the linear drive assembly 2. The linear drive assembly 2 can drive the wetting actuator 3 to move to a predetermined position according to a preset displacement trajectory, thereby spraying liquid onto the hair follicle unit to wet the hair follicle unit.

[0034] Of course, the wetting actuator 3 may also include a dripping actuator 31 and a spraying actuator 32. That is, both the dripping actuator 31 and the spraying actuator 32 are installed on the linear drive assembly 2. Medical staff can choose to use the dripping actuator 31 or the spraying actuator 32 to release liquid to the hair follicle unit for wetting treatment according to actual needs.

[0035] See Figure 4 and Figure 5 As shown, in this embodiment, the dripping actuator 31 includes a first mounting bracket 311, a drive unit 312, and a dripping assembly 313, both of which are mounted on the first mounting bracket 311.

[0036] Specifically, the dripping assembly 313 includes a tube body 3131 and a first push rod 3132. The tube body 3131 is a thin-walled cylindrical cavity. At least a portion of the first push rod 3132 is movably installed inside the tube body 3131. A dripping head 31311 is provided at the lower end of the tube body 3131. The driving unit 312 can drive the first push rod 3132 to move downward along the inner wall of the tube body 3131 so that the liquid inside the tube body 3131 drips downward from the dripping head 31311.

[0037] To further explain, this embodiment also provides the dripping process of the above-mentioned dripping actuator 31, as follows: In the initial state, the first push rod 3132 is located at the upper limit position of the tube 3131, and the inner cavity of the tube 3131 is pre-filled with liquid. Upon receiving the dripping command, the drive unit 312 is activated, pushing the first push rod 3132 to move downward in a straight line along the inner wall of the tube 3131 at a preset speed. Under the compression action of the end face of the first push rod 3132, the volume of the inner cavity of the tube 3131 decreases, and the liquid pressure rises to overcome the flow resistance of the dripping head 31311. The liquid is then precipitated from the end of the dripping head 31311 in the form of discrete droplets.

[0038] With the above design, the displacement and speed of the first push rod 3132 can be controlled by the drive unit 312, thereby regulating the single drip volume and drip frequency to achieve quantitative output.

[0039] In this embodiment, the drive unit 312 includes a drive member 3121 and a second push rod 3122 connected to the drive member 3121. The first push rod 3132 and the second push rod 3122 are arranged in parallel and connected by a connector. The drive member 3121 can drive the second push rod 3122 to perform linear motion. This design ensures the synchronization and directional consistency of the first push rod 3132 and the second push rod 3122 during the movement, reduces the risk of the first push rod 3132 deflecting or jamming during the lifting and lowering motion, and thus improves the displacement accuracy of the first push rod 3132.

[0040] More specifically, the drive unit 312 is an electric push rod, which can provide a stable and uniform linear output. It synchronously drives the first push rod 3132 through the connecting parts, thereby ensuring the smooth operation of the dripping actuator 31.

[0041] In one embodiment of this application, the sidewall of the tube 3131 is provided with a plurality of scale lines, which are arranged at equal intervals along the axial direction of the tube 3131.

[0042] See Figure 6 and Figure 7 As shown, in one embodiment of this application, the wetting actuator 3 includes a spraying actuator 32, which includes a body 321, a nozzle 322, and a valve core assembly 323. The body 321 has an inlet channel 3211 inside. The nozzle 322 is installed at the lower end of the body 321, and the nozzle 322 has a pressure chamber 3221 communicating with the inlet channel 3211 and a spray hole 3222 communicating with the pressure chamber 3221.

[0043] Specifically, from top to bottom, the width of the pressure chamber 3221 gradually decreases. More specifically, the pressure chamber 3221 is in the shape of an inverted cone, and the injection hole 3222 is located at the bottom end of the nozzle 322 and is connected to the cone apex region of the pressure chamber 3221.

[0044] The valve core assembly 323 is movably installed inside the body 321. Under the action of axial hydraulic pressure and reverse restoring force, the valve core assembly 323 can switch between a first position and a second position. When the pressure in the pressure chamber 3221 does not reach the preset threshold, the valve core assembly 323 is in the first position. At this time, the conical section of the valve core assembly 323 maintains line contact with the wall of the pressure chamber 3221, forming a mechanical seal, blocking the fluid passage between the pressure chamber 3221 and the injection hole 3222, and the injection hole 3222 is in a closed state. As liquid continuously enters the pressure chamber 3221 through the inlet channel 3211, the liquid in the pressure chamber 3221 accumulates due to the blockage of the injection hole 3222, and the static pressure increases accordingly. When the pressure in the pressure chamber 3221 acts on the lower end face of the valve core assembly 323 and reaches the threshold, the valve core assembly 323 is forced to move upward and switch to the second position. At this time, the valve core assembly 323 separates from the wall of the pressure chamber 3221, forming an annular flow gap, and the injection hole 3222 switches to the open state.

[0045] After the injection orifice 3222 is in the open state, the high-pressure liquid in the pressure chamber 3221 accelerates its flow under the pressure difference. Since the pressure chamber 3221 is an inverted cone, the cross-sectional area of ​​the fluid continuously decreases as it flows toward the injection orifice 3222, and the flow velocity increases along the flow path. The fluid potential energy is converted into kinetic energy, thereby forming a high-speed continuous phase jet at the inlet of the injection orifice 3222. This jet is ejected from the injection orifice 3222 at high speed, enters the surrounding air medium, and undergoes a violent momentum exchange with the surrounding air medium, thereby breaking into tiny droplets to be sprayed onto the surface of the hair follicle unit.

[0046] Specifically, the valve core assembly 323 includes a valve body 3231, a screw adjuster 3232, and an elastic element 3233. The valve body 3231 and the injection hole 3222 are coaxially arranged. The screw adjuster 3232 is installed at the upper end of the valve body 321. One end of the elastic element 3233 abuts against the valve body 3231, and the other end of the elastic element 3233 abuts against the screw adjuster 3232.

[0047] Specifically, the elastic element 3233 is a spring. By screwing in or out the screw regulator 3232, the pre-compression of the spring can be changed, thereby regulating the elastic force of the spring acting on the valve body 3231, and thus controlling the critical pressure threshold when the injection hole 3222 is opened.

[0048] In this embodiment, the screw adjuster 3232 includes an adjusting screw 32321 and a T-shaped limiting member 32322. The adjusting screw 32321 is at least partially inserted into the body 321, and the adjusting screw 32321 and the body 321 are connected by a threaded connection. The adjusting screw 32321 and the T-shaped limiting member 32322 are fixedly connected.

[0049] The T-shaped limiting member 32322 includes a lateral limiting part 32322a and a longitudinal guiding part 32322b. The elastic element 3233 abuts against the lateral limiting part 32322a, and the longitudinal guiding part 32322b is inserted into the inner cavity of the elastic element 3233. This design effectively limits the radial deformation and buckling tendency of the elastic element 3233 during compression, ensuring that it always undergoes linear deformation along the axial direction, thus improving the service life of the elastic element 3233.

[0050] In one embodiment of this application, the base frame 1 includes a support frame 11 and two mounting frames 12. The support frame 11 is installed below the operating table 1a. Both mounting frames 12 are installed on the operating table 1a and are spaced apart. The linear drive assembly 2 is installed on the two mounting frames 12.

[0051] See Figure 3 As shown, in one embodiment of this application, the linear drive assembly 2 includes a guide rail 21, a lead screw 22, two guide rods 23, a motor 24, a first slider 25, and a second slider 26. The lead screw 22 is installed inside the guide rail 21; the two guide rods 23 are arranged parallel to the lead screw 22 and are installed inside the guide rail 21; the motor 24 and the lead screw 22 are connected by a belt drive, and the motor 24 is used to drive the lead screw 22 to rotate; the first slider 25 is installed on the lead screw 22 and the two guide rods 23, and the first slider 25 is connected to the dripping actuator 31; the second slider 26 is installed on the lead screw 22 and the two guide rods 23, and the second slider 26 is connected to the spraying actuator 32.

[0052] Specifically, in this embodiment, the lead screw 22 mainly bears and transmits the torque around its axis, converting it into linear feed motion of the first slider 25 and the second slider 26 along the axis. Since the dripping actuator 31 is mounted on the first slider 25 and the spraying actuator 32 is mounted on the second slider 26, the dripping actuator 31 applies an off-center torque to the first slider 25, and the spraying actuator 32 applies an off-center torque to the second slider 26. This torque tends to cause the first slider 25 and the second slider 26 to rotate around the axis of the lead screw 22. The two parallel guide rods 23 generate a counter-torque to resist the rotation of the first slider 25 and the second slider 26 around the axis of the lead screw 22, thus constraining the pitch angle of the first slider 25 and the second slider 26 within a certain range. Because the rotation of the first slider 25 and the second slider 26 around the axis is suppressed, the position and orientation of the dripping head 31311 and the nozzle 322 mounted on them remain constant in three-dimensional space, thereby reducing the deviation in liquid landing point caused by motion jitter and ensuring the accuracy and consistency of the liquid application process.

[0053] Furthermore, this application also provides a wetting method for the automatic wetting device as described above, comprising the following steps: S1. The hair follicle unit is placed in the predetermined position on the operating table 1a; S2, Linear drive assembly 2 drives wetting actuator 3 to move directly above the hair follicle unit; S3, the wetting actuator 3 releases liquid into the hair follicle unit to wet the hair follicle unit.

[0054] In summary, the automatic wetting device for hair follicle transplantation proposed in this invention includes a base frame 1 and a linear drive assembly 2. The base frame 1 is equipped with an operating platform 1a for supporting hair follicle units. The linear drive assembly 2 is mounted on the base frame 1. A wetting actuator 3 is mounted on the linear drive assembly 2, which drives the wetting actuator 3 to move directly above the hair follicle unit. The wetting actuator 3 is used to release liquid onto the hair follicle unit to wet it. This design allows the wetting actuator 3 to move along a predetermined path to directly above the hair follicle unit, thereby releasing liquid to wet the unit. Compared to manual spraying or dripping, which results in uneven liquid distribution due to hand tremors and distance estimation errors, the linear drive assembly 2 in this application can drive the wetting actuator 3 to a predetermined position, hovering at a constant interval directly above the hair follicle unit. This achieves consistency in release height, position, and coverage, ensuring that the hair follicle unit is adequately wetted and maintaining a homogeneous and moist state. Secondly, the automatic moisturizing device can independently complete the auxiliary operation of moisturizing, allowing medical staff to focus on the main operations such as hair follicle separation and trimming without interrupting visual focus and hand movements to perform dripping or spraying actions. This reduces the risk of moisturizing interruption due to uneven attention distribution, and continuously suppresses the dehydration stress response after hair follicle removal, thereby ensuring the structural integrity and cell vitality of the hair follicle and improving the survival rate of hair follicle transplantation. This solves the problem that medical staff are prone to interrupting or forgetting to regularly drip moisturize the removed hair follicles due to high concentration during hair follicle separation and trimming operations, which can lead to damaged activity of the hair follicles due to dryness.

[0055] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic wetting device for hair follicle transplantation, characterized in that, include: A base frame, on which an operating table for supporting hair follicle units is provided; A linear drive assembly, which is mounted on the base frame; A wetting actuator is mounted on the linear drive assembly, which drives the wetting actuator to move directly above the hair follicle unit. The wetting actuator is used to apply liquid to the hair follicle unit to wet it.

2. The automatic wetting device for hair follicle transplantation according to claim 1, characterized in that, The wetting actuator includes a dripping actuator, and the dripping actuator includes: First mounting bracket; The drive unit is mounted on the first mounting bracket; A drip assembly, wherein the drip assembly is mounted on the first mounting bracket; The drip assembly includes a tube body and a first push rod. At least a portion of the first push rod is movably mounted inside the tube body. A drip head is provided at the lower end of the tube body. The driving unit can drive the first push rod to move downward along the inner wall of the tube body so that the liquid inside the tube body drips downward from the drip head.

3. The automatic wetting device for hair follicle transplantation according to claim 2, characterized in that, The driving unit includes a driving component and a second push rod connected to the driving component. The first push rod and the second push rod are arranged in parallel and are connected by a connector. The driving component can drive the second push rod to perform linear motion.

4. The automatic wetting device for hair follicle transplantation according to claim 2, characterized in that, The sidewall of the tube is provided with multiple scale lines, which are arranged at equal intervals along the axial direction of the tube.

5. The automatic wetting device for hair follicle transplantation according to claim 2, characterized in that, The wetting actuator includes a spraying actuator, which includes: The container body has a liquid inlet channel inside. The nozzle is installed at the lower end of the device body, and the nozzle is provided with a pressure chamber communicating with the liquid inlet channel and a spray hole communicating with the pressure chamber. A valve core assembly is movably mounted in the body of the device. The valve core assembly can switch between a first position and a second position. When the valve core assembly is in the first position, it extends into the pressure chamber and abuts against the chamber wall, so that the injection orifice is in a closed state. When the valve core assembly is in the second position, it separates from the chamber wall of the pressure chamber, so that the injection orifice is in an open state.

6. The automatic wetting device for hair follicle transplantation according to claim 5, characterized in that, The valve core assembly includes: A valve body, wherein the valve body and the injection hole are coaxially arranged; A screw regulator, wherein the screw regulator is installed at the upper end of the device body; An elastic element, one end of which abuts against the valve body, and the other end of which abuts against the screw regulator.

7. The automatic wetting device for hair follicle transplantation according to claim 6, characterized in that, The screw regulator includes: An adjusting screw, which is at least partially inserted into the body of the device, and the adjusting screw and the body are connected by a threaded connection; The T-shaped limiting component, wherein the adjusting screw and the T-shaped limiting component are fixedly connected; The T-shaped limiting member includes a lateral limiting part and a longitudinal guiding part. The elastic element abuts against the lateral limiting part, and the longitudinal guiding part is inserted into the inner cavity of the elastic element.

8. The automatic wetting device for hair follicle transplantation according to claim 7, characterized in that, The base frame includes: A support frame is installed below the operating table; Two mounting brackets are provided, both of which are mounted on the operating table and spaced apart. The linear drive assembly is mounted on both mounting brackets.

9. The automatic wetting device for hair follicle transplantation according to claim 8, characterized in that, The linear drive component includes: guide; A lead screw, which is mounted inside the guide rail; Two guide rods are provided, both of which are parallel to the lead screw and are installed inside the guide rail. The motor and the lead screw are connected by a belt drive, and the motor is used to drive the lead screw to rotate; A first slider is mounted on the lead screw and the two guide rods, and the first slider is connected to the dripping actuator. The second slider is mounted on the lead screw and the two guide rods, and is connected to the spraying actuator.

10. A wetting method for an automatic wetting device as described in any one of claims 1 to 9, characterized in that, include: The hair follicle unit is placed at a predetermined position on the operating table; The linear drive assembly drives the wetting actuator to move directly above the hair follicle unit; The wetting actuator applies liquid to the hair follicle unit to wet the hair follicle unit.

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