Laser positioning auxiliary device

Abstract

The invention relates to the field of laser treatment equipment, in particular to a laser positioning auxiliary device. Comprising an arc-shaped track, a first driving part, a sliding block assembly, a second driving part, a laser emitting assembly and a positioning wheel. The first driving part is connected with the arc-shaped track and used for driving the arc-shaped track to swing; the second driving part is connected with the sliding block assembly and used for driving the sliding block assembly to move on the arc-shaped track; the laser emitting assembly comprises a laser emitting end part and a positioning wheel; the positioning wheel is in contact with the scalp and used for keeping the distance between the laser emitting end and the scalp area within a preset interval. According to the invention, a three-axis system of X, Y and Z can be formed, so that the laser emission end part is driven to accurately reach any position of the scalp. Meanwhile, by means of the positioning wheel, it can be guaranteed that laser irradiation is conducted on each scalp area at the preset focal length, the laser irradiating the scalp areas can reach the preset intensity, and the treatment effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of laser treatment equipment, and in particular to a laser positioning auxiliary device. Background Art

[0002] Laser-assisted hair growth typically involves non-ablative fractional lasers in the infrared wavelengths of 1565nm, 1550nm, and 2940nm. This therapy is primarily used to promote hair growth and thereby alleviate hair loss. For example, in the treatment of androgenic alopecia with lasers, the handpiece precisely controls the laser energy emission at the corresponding wavelength, forming micron-sized thermal coagulation columns on the tissue in the treatment area. This "microporous channel effect" significantly increases the skin penetration and absorption of topical medications, while also helping to activate hair follicle stem cells and promote the growth phase of hair follicles, thereby promoting hair regeneration.

[0003] In the related technical process, treatment is often performed by manually holding the laser emitting device and repeatedly scanning the target scalp area. However, on the one hand, manual holding cannot accurately grasp the focal length of the laser. On the other hand, the large number of treatment areas in the scalp makes it difficult for humans to work, and it is difficult to maintain the ideal holding distance for a long time. As a result, it is difficult for the laser irradiated on the scalp area to reach the preset intensity, significantly reducing the treatment effect. Summary of the Invention

[0004] In view of the above technical problems, the technical solution adopted by the present invention is: According to one aspect of the present invention, there is provided a laser positioning auxiliary device, comprising: an arc track, a first driving component, a slider assembly, a second driving component, a laser emission assembly, and a positioning wheel; The first driving component is connected to the arc track and is used to drive the arc track to swing around a first axis; the first axis is a line connecting the two ends of the arc track; The slider assembly is slidably arranged on the arc track; the second driving component is connected to the slider assembly and is used to drive the slider assembly to move on the arc track; The laser emitting assembly includes a laser emitting end, a clamping portion and a positioning wheel; The clamping portion is provided on the slider assembly, the laser emitting end portion and the clamping portion are provided to slide relative to each other, and a positioning wheel is provided on the laser emitting end portion; the positioning wheel contacts the scalp and is used to maintain the distance between the laser emitting end portion and the scalp area within a preset range; The slider assembly includes: a driving gear, two belt guide pulleys, a transmission belt and a sliding housing; The sliding housing is slidably mounted on an arc-shaped track. The driving gear and two belt guide pulleys are rotatably mounted inside the sliding housing. The rotation axes of the driving gear and the two belt guide pulleys are parallel to each other, and the two belt guide pulleys are symmetrically arranged relative to the driving gear. The second driving component is connected to the driving gear. A belt placement groove is provided on the outer curved surface of the curved track, the transmission belt is provided in the belt placement groove, and the two ends of the transmission belt are respectively fixed at the two ends of the belt placement groove; a part of the transmission belt is sleeved on the transmission gear and two belt guide wheels, and the transmission teeth on the transmission belt are engaged with the transmission gear.

[0005] The present invention has at least one of the following beneficial effects: In the present invention, the curved track swings about a first axis, the sliding assembly slides on the curved track, and the laser emitting end moves relative to the clamping portion. This creates a three-axis system that moves along mutually perpendicular X, Y, and Z axes, allowing the laser emitting end to precisely reach any location on the scalp. Furthermore, by providing a positioning wheel on the laser emitting end, it is possible to ensure that, at any location, the distance between the laser emitting end and the scalp remains a relatively fixed value, i.e., the laser focal length. Thus, the laser positioning assist device of the present invention can drive the laser emitting end to any location on the scalp for treatment, ensuring that each scalp area is irradiated with laser light at a preset focal length. This ensures that the laser light irradiating the scalp area reaches a preset intensity, enhancing the therapeutic effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0007] Figure 1 A diagram showing the use status of a laser positioning auxiliary device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a slider assembly provided by an embodiment of the present invention installed on a curved track, wherein some sub-housings of the sliding housing are not shown; Figure 3 A schematic diagram of the internal structure of a slider assembly provided in an embodiment of the present invention; Figure 4 A schematic diagram of the internal structure of a laser emission assembly provided by an embodiment of the present invention when the pressure sensor is not included; Figure 5 A schematic diagram of the internal structure of a laser emission assembly including a pressure sensor provided in an embodiment of the present invention; Figure 6 A schematic diagram of a laser scanning path provided by an embodiment of the present invention; Figure 7 This is a flow chart of a pressure regulation method provided by an embodiment of the present invention.

[0008] Reference numerals 1. Arc track; 10. Belt placement groove; 11. Sliding guide groove; 2. Slider assembly; 20. Drive gear; 21. Belt guide pulley; 22. Sliding housing; 23. Upper limit pulley; 24. Intermediate limit pulley; 25. Lower limit pulley; 26. Tensioning knob; 27. Tensioning slide; 28. Drive belt; 29. ​​Sliding side plate; 3. Laser emitting assembly; 30. Laser emitting tube; 301. First sliding sleeve; 302. Second sliding sleeve; 31. Laser emitting end; 32. Positioning wheel; 33. Optical fiber; 34. Adjusting spring; 35. Clamping sleeve; 36. Adjusting stud; 37. Adjusting screw; 38. Sliding part; 39. Adjusting hook; 41. First driving component; 42. Second driving component; 43. Third driving component; 44. Fourth driving component; 5. Longitudinal lifting bracket; 6. Photoelectric limit switch; 7. Limit block; 8. Pressure sensor. DETAILED DESCRIPTION

[0009] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0010] As a possible embodiment of the present invention, Figure 1 As shown, a laser positioning auxiliary device is provided, including: an arc track 1, a first driving component 41, a slider assembly 2, a second driving component 42 and a laser emitting assembly 3.

[0011] The first drive component 41 is connected to the curved track 1 and is used to drive the curved track 1 to swing about a first axis. The first axis is the line connecting the two ends of the curved track 1. The slider assembly 2 is slidably mounted on the curved track 1. The second drive component 42 is connected to the slider assembly 2 and is used to drive the slider assembly 2 to move on the curved track 1. Specifically, in this embodiment, the first drive component 41, the second drive component 42, the third drive component 43, and the fourth drive component 44 are all motors, which can be stepper motors or servo motors.

[0012] In this embodiment, the swing direction of the arc track 1 is actually along the front-back direction of the human head. Figure 1In the Y-axis direction shown in FIG, the sliding direction of the slider assembly 2 is actually along the left and right direction of the human head, as shown in FIG. Figure 1 The X-axis direction and the Y-axis direction shown in the figure are perpendicular to the X-axis direction. This allows the laser emitting assembly 3 on the slider assembly 2 to reach any scalp part of the user's head.

[0013] Specifically, in this embodiment, the curved track 1 can be a semicircular track. In addition, in order to enable the slider assembly 2 to slide better on the curved track 1, sliding guide grooves 11 are provided on both end surfaces of the curved track 1. At the same time, in order to better install the transmission belt 28, a belt placement groove 10 is also provided on the outer curved surface of the curved track 1.

[0014] The laser positioning auxiliary device further includes: a longitudinal lifting bracket 5 , a photoelectric limit switch 6 and a limit block 7 .

[0015] The arc track 1 is rotatably arranged on a longitudinal lifting bracket 5. The longitudinal lifting bracket 5 can be a lifting bracket in the prior art, which is mainly used to adjust the position of the arc track 1 in the Z-axis direction.

[0016] The photoelectric limit switch 6 is provided on the arc track 1, and the limit blocks 7 are provided on both sides of the sliding housing 22. By providing the photoelectric limit switch 6 and the limit blocks 7, the sliding position of the slider assembly 2 on the arc track 1 can be limited.

[0017] The laser emitting assembly 3 includes a laser emitting end 31 , a clamping portion and a positioning wheel 32 .

[0018] The clamping portion is provided on the slider assembly 2, and the laser emitting end 31 is provided to slide relative to the clamping portion. The positioning wheel 32 is provided on the laser emitting end 31. The positioning wheel 32 contacts the scalp and is used to maintain the distance between the laser emitting end 31 and the scalp area within a preset range.

[0019] In this embodiment, the laser emitting assembly 3 is used to deliver the treatment laser to the corresponding area of ​​the scalp. Specifically, the laser emitting end 31 delivers the treatment laser to the corresponding area of ​​the scalp, and the clamping portion is used to fix it with the slider assembly 2. Since different scalp areas correspond to different head shapes, in order to enable the positioning wheel 32 to better fit the scalp of different areas, it is necessary for the laser emitting end 31 and the clamping portion to slide relative to each other, that is, Figure 1 Furthermore, since the positioning wheel 32 is disposed on the laser emitting end 31, the relative distance between the positioning wheel 32 and the laser emitting end 31 can be fixed to ensure that the distance between the laser emitting end 31 and the scalp area is within a preset range. In this example, the preset range is typically the laser focal length range.

[0020] In order to realize the above functions of the laser emitting assembly 3, in this embodiment, the laser emitting assembly 3 can be configured as follows: Specifically, such as Figure 4 As shown, the laser emitting assembly 3 includes: a laser emitting tube 30 , a clamping sleeve 35 , a third driving component 43 , an adjusting spring 34 , an adjusting hook 39 and an adjusting screw 37 .

[0021] A clamping sleeve 35 is disposed outside the sliding housing 22. The laser emitting tube 30 slides through the clamping sleeve 35. An adjustment spring 34 is disposed between the laser emitting tube 30 and the clamping sleeve 35. The laser emitting tube 30 can be any tubular device used to emit therapeutic laser light in the prior art. Alternatively, in this embodiment, the laser emitting tube 30 can be a tubular structure for mounting an optical fiber 33. In actual use, the optical fiber 33 is passed through the laser emitting tube 30 to deliver the therapeutic laser light to the scalp area.

[0022] The clamping sleeve 35 and the laser emitting tube 30 are connected by an adjusting spring 34, and the elastic force of the spring 34 can be adjusted to more gently adjust the relative movement between the laser emitting tube 30 and the clamping sleeve 35, so that the positioning wheel 32 can better fit the scalp during movement.

[0023] The third drive component 43 is fixedly connected to the end of the clamping sleeve 35 away from the laser emitting tube 30. The third drive component 43 is connected to the adjustment screw 37, which slides in the same direction as the laser emitting tube 30. The sliding portion 38 of the adjustment screw 37 is connected to the adjustment hook 39. The hook end of the adjustment hook 39 is hooked into the adjustment ring at the rear end of the laser emitting tube 30, and an adjustment gap is formed between the hook end and the adjustment ring.

[0024] Driven by the third drive component 43, the sliding portion 38 of the adjustment screw can slide up and down along the axis of the clamping sleeve 35. At the same time, because the adjustment hook 39 is hooked into the adjustment ring at the tail of the laser emitting tube 30, the laser emitting tube 30 can be greatly retracted into the clamping sleeve 35 under the drive of the sliding portion 38. This function can be mainly used to move the laser emitting end 31 away from the scalp area when the laser switches to another scanning path, so as to facilitate repositioning at the new scanning path. Or after the laser scanning operation is completed, the adjustment hook 39 can be used directly to connect the clamping sleeve 35 to the laser emitting tube 30. This avoids the clamping sleeve 35 and the laser emitting tube 30 being connected through the adjustment spring 34 all the time, which can easily cause the adjustment spring 34 to fail and shorten the service life of the adjustment spring 34.

[0025] like Figure 2 and Figure 3As shown, the slider assembly 2 includes a driving gear 20 , two belt guide pulleys 21 , a transmission belt 28 and a sliding housing 22 .

[0026] The sliding housing 22 is slidably mounted on the curved track 1. The drive gear 20 and two belt guide pulleys 21 are rotatably mounted within the sliding housing 22. The rotation axes of the drive gear 20 and the two belt guide pulleys 21 are parallel to each other, and the two belt guide pulleys 21 are symmetrically arranged relative to the drive gear 20. The second drive component 42 is connected to the drive gear 20.

[0027] The sliding housing 22 includes a first sliding sub-housing and a second sliding sub-housing that are oppositely arranged. The sliding housing 22 is mounted on the arc track 1 , and the two sliding side plates 29 corresponding to the first sliding sub-housing and the second sliding sub-housing respectively cover the outside of the sliding guide groove 11 .

[0028] The transmission belt 28 is disposed in the belt placement groove 10, and the two ends of the transmission belt 28 are respectively fixed to the two ends of the belt placement groove 10. Part of the transmission belt 28 is sleeved on the transmission gear and the two belt guide pulleys 21, and the transmission teeth on the transmission belt 28 are meshed with the transmission gear.

[0029] The meshing design between the transmission gear and the transmission belt 28 drives the entire sliding housing 22 along the curved track 1. In this embodiment, the combined drive gear and transmission belt 28 reduce noise during the sliding of the sliding housing 22, thereby minimizing the impact of noise on the user. Furthermore, the transmission belt 28 is more flexible, allowing it to better conform to the surface of the curved track 1, ensuring smooth movement of the sliding housing 22.

[0030] like Figure 2 and Figure 3 As shown, the slider assembly 2 further includes a tensioning slide 27 and a tensioning knob 26 .

[0031] The tensioning knob 26 is screwed onto the sliding housing 22, and the tensioning slide 27 is slidably mounted within the sliding housing 22. The end of the tensioning knob 26 is connected to the tensioning slide 27. The second drive component 42 is fixedly mounted on the tensioning slide 27. During actual use, the meshing between the transmission belt 28 and the transmission gear may become loose, necessitating the provision of a tensioning mechanism to ensure the tightness of the meshing between the transmission belt 28 and the drive gear 20.

[0032] like Figure 2 As shown, the slider assembly 2 further includes: a plurality of guide and limiting wheel sets.

[0033] A plurality of guide and limiting wheel groups are respectively arranged on the two sliding side plates 29 of the sliding housing 22. The two sliding side plates 29 are respectively and parallelly sleeved on the outer sides of the end surfaces of both sides of the arc track 1.

[0034] The guide limiting wheel assembly includes an upper limiting wheel 23 , a lower limiting wheel 25 and an intermediate limiting wheel 24 .

[0035] The upper limit wheel 23 , the lower limit wheel 25 and the middle limit wheel 24 are all rotatably arranged on the sliding side plate 29 . The rotation axes of the upper limit wheel 23 and the lower limit wheel 25 are perpendicular to the sliding side plate 29 , and the rotation axis of the middle limit wheel 24 is parallel to the sliding side plate 29 .

[0036] The upper limiting wheel 23 and the lower limiting wheel 25 are respectively in contact with the upper surface and the lower surface of the sliding guide groove 11. The middle limiting wheel 24 is in contact with the bottom surface of the sliding guide groove 11.

[0037] In order to ensure that the slider assembly 2 slides on the curved track 1 in the preset track direction, a plurality of guide limiting wheel groups are also provided in the slider assembly 2, each of which includes an upper limiting wheel 23, a lower limiting wheel 25 and an intermediate limiting wheel 24. By contacting the surfaces of different positions of the limiting wheels with the sliding guide groove 11, the sliding assembly can be prevented from moving up and down and left and right during the sliding process, thereby ensuring the smoothness of the sliding of the slider assembly 2 on the curved track 1, and also ensuring the accuracy of positioning.

[0038] In this embodiment, the curved track 1 swings about a first axis, the sliding assembly slides on the curved track 1, and the laser emitting end 31 moves relative to the clamping portion. This forms a three-axis system that moves along mutually perpendicular X, Y, and Z axes, thereby enabling the laser emitting end 31 to precisely reach any location on the scalp. Furthermore, by providing a positioning wheel 32 at the laser emitting end 31, it is ensured that at any location, the distance between the laser emitting end 31 and the scalp remains a relatively fixed value, i.e., the laser focal length. Thus, the laser positioning assist device of the present invention can drive the laser emitting end 31 to any location on the scalp for treatment, and can ensure that each scalp area is irradiated with laser light at a preset focal length, thereby ensuring that the laser light irradiating the scalp area reaches a preset intensity, thereby enhancing the treatment effect.

[0039] As another possible embodiment of the present invention, Figure 5 As shown, the laser emitting assembly 3 can also be in the following structural form: Specifically, the laser emitting assembly 3 includes: a laser emitting tube 30 , a first sliding sleeve 301 , a second sliding sleeve 302 , a fourth driving component 44 , an adjusting spring 34 , an adjusting stud 36 and a pressure sensor 8 .

[0040] The first sliding sleeve 301 is clamped outside the sliding housing 22, the second sliding sleeve 302 is slidably inserted into the first sliding sleeve 301, and the laser emitting tube 30 is slidably inserted into the second sliding sleeve 302. The adjustment spring 34 is provided between the laser emitting tube 30 and the second sliding sleeve 302.

[0041] The adjusting screw 36 is connected to the fourth driving component 44 . The fourth driving component 44 is fixedly disposed inside the first sliding sleeve 301 . The adjusting screw 36 is screwed onto the second sliding sleeve 302 .

[0042] In this embodiment, through the coaxial sliding arrangement between the first sliding sleeve 301, the second sliding sleeve 302 and the laser emitting tube 30, not only can the position of the laser emitting end 31 on the Z axis be adjusted by adjusting the expansion and contraction of the spring 34 itself; at the same time, the expansion and contraction between the first sliding sleeve 301 and the second sliding sleeve 302 can be coordinated to further adjust the position of the laser emitting end 31 on the Z axis, ultimately giving the laser emitting end 31 a wider range of adjustment capability on the Z axis, which can better adapt to the laser scanning operations of different users.

[0043] The pressure sensor 8 is disposed between the adjustment spring 34 and the laser emitting tube 30 , or between the adjustment spring 34 and the second sliding sleeve 302 , and is used to obtain the pressure value of the positioning wheel 32 on the scalp.

[0044] In this embodiment, the pressure value of the scanning position fed back by the pressure sensor 8 can also be used to guide the doctor to adjust the position of the laser emitting end 31 on the Z axis in a timely manner, thereby avoiding as much as possible the positioning wheel 32 from applying a large pressure on the user's scalp during the laser scanning operation, thereby causing discomfort to the user.

[0045] To more automatically and timely adjust the pressure of the positioning wheel 32 on the user's scalp, a laser positioning assist device in this embodiment further includes a controller, which is communicatively connected to the first drive component 41, the second drive component 42, the third drive component 43, the fourth drive component 44, and the pressure sensor 8. The controller can thus obtain signals returned by each component or perform corresponding operation control on each component.

[0046] During conventional laser scanning treatment, after the scalp area to be treated is determined, the laser scanning path will be set in advance to ensure that the laser spot completely covers the scalp area to be treated. For example, an S-shaped scanning path or multiple parallel scanning paths can be used to completely cover the area to be treated. The laser will then step along the scanning path to reach each scanning point in turn to complete the treatment. Figure 6As shown, using a rectangular laser spot as an example, the distance between two adjacent scanning points can be the width of the rectangular spot, ensuring that no area between two adjacent scanning points is missed. Based on this laser scanning operation, the controller can control the fourth drive component in the following steps to ensure that the pressure of the positioning wheel 32 on the scalp remains within an appropriate range during the laser scanning process, thereby preventing user discomfort.

[0047] Specifically, such as Figure 7 As shown, the controller is used to perform the following steps: S100: If the scanning mark is the first scanning mark, each time a new scanning point is reached, the position information and scanning pressure value corresponding to the current scanning point are generated according to the information of the first driving component 41, the second driving component 42, the fourth driving component 44 and the pressure sensor 8.

[0048] The first scanning mark may be a mark corresponding to when the laser performs only a single scan along the predicted scanning path, or a mark corresponding to when the laser performs multiple scans along the predicted scanning path for the first time.

[0049] Based on the position information returned by the first, second, and fourth drive components 41, 42, and 44, the specific coordinates of the second sliding sleeve with respect to the X, Y, and Z axes can be determined. The pressure sensor 8 can also be used to determine the pressure exerted by the positioning wheel 32 on the scalp at that position. This allows the generation of position and pressure information for each scanning point throughout the entire scanning process.

[0050] S200: If the scanning pressure value A corresponding to the current scanning point i If the pressure is greater than the first preset pressure threshold, the scanning pressure value A corresponding to the previous scanning point adjacent to the current scanning point is obtained. i-1 .

[0051] The first preset pressure threshold can be determined based on the size of the positioning wheel 32 and the user's sensitivity to scalp pressure. Typically, this pressure threshold is the pressure on the positioning wheel 32 at which a person first experiences discomfort. This determination is typically made upon reaching a new scanning point. By setting the first pressure threshold, it is possible to more accurately determine whether the current scanning point is likely to cause user discomfort, allowing for prompt initiation of subsequent determination and adjustment steps.

[0052] S300: If A i -A i-1 >0, the fourth driving component 44 is controlled to drive the adjusting screw 36 to rotate, driving the second sliding sleeve 302 to move away from the scalp.

[0053] During the scanning process, if the head shape corresponding to the scanning path is a protruding shape, the pressure value corresponding to the current scanning point will be greater than the pressure value of the previous point adjacent to it. i -A i-1 >0, it can be determined that the scanning area corresponding to the current scanning path has a convex head shape tendency. Therefore, the fourth driving component 44 should be controlled to drive the second sliding sleeve 302 to move away from the scalp, thereby timely reducing the pressure of the positioning wheel 32 on the scalp.

[0054] S400 : During the operation of the fourth driving component 44 , the current scanning pressure value is continuously obtained through the pressure sensor 8 .

[0055] In this step, a smaller acquisition interval can be set to continuously obtain the current scanning pressure value of the position during the operation of the fourth driving component 44.

[0056] S500: If the current scanning pressure value is less than the second preset pressure threshold, the fourth driving component 44 is controlled to stop, and the position information and scanning pressure value acquired when the fourth driving component 44 stops are respectively updated as the position information and scanning pressure value corresponding to the current scanning point, and the current scanning point is marked as a rising point. The second preset pressure threshold is less than the first preset pressure threshold.

[0057] This embodiment is a pressure adjustment method for the working scene corresponding to the first scanning mark. In this scene, since the scanning pressure value corresponding to each scanning point cannot be known in advance, once the pressure value at a certain scanning point is determined to be likely to cause discomfort to the user, it is necessary to promptly adjust the pressure through A i -A i-1 >0, to further determine whether the current scanning path interval is a head-shaped convex interval, and timely control the fourth driving component 44 to adjust the pressure of the positioning wheel 32, thereby reducing the duration of the pressure value that causes discomfort to the user during the entire scanning process.

[0058] As another possible embodiment of the present invention, the controller is further configured to perform the following steps: S110: If the scan mark is a re-scan mark, the maximum scan point height information Hmax and the minimum scan point height information Hmin corresponding to the decompression point sequence are obtained from the generated scan point record. The decompression point sequence includes at least two consecutive ascending points and the scanning point immediately preceding the consecutive ascending points. The scan point height information in this step may be the Z-axis position of the second sliding sleeve 302.

[0059] The rescan markers can be markers corresponding to multiple scans along the predicted scanning path that are not the first scan. Since the magnitude and type of pressure values ​​corresponding to each laser scan point are known after the first scan, the sequence of decompression points present in the entire scanning path can be obtained.

[0060] For example, a laser scanning path with 10 scanning points is used. Scanning points 1 through 3 are normal, points 4 and 5 are rising, points 6 through 8 are normal, and points 9 and 10 are rising. The decompression point sequence consists of the points 3 through 5 and the points 8 through 10.

[0061] Because the head shape's outward convexity is continuous, the points immediately preceding the ascending point often already show a convexity trend. Therefore, the decompression point sequence in this step includes not only the consecutive ascending points, but also a normal point immediately preceding the consecutive ascending points. This allows us to encompass as much of the convexity trend as possible.

[0062] S210: Generate the decompression rate K for the corresponding scanning path interval of the decompression point sequence based on Hmax and Hmin. K satisfies the following conditions: K = (Hmax - Hmin) / [(n-1) × L], where n is the total number of scan points in the decompression point sequence, and L is the distance between two adjacent scan points.

[0063] S310: When the laser moves in the scanning path interval corresponding to the decompression point sequence, the fourth driving component 44 is controlled to drive the second sliding sleeve 302 to move in a direction away from the scalp according to K.

[0064] In the previous embodiment, when the current scanning point moves to the next scanning point, the position of the second sliding sleeve remains unchanged. If the corresponding scalp has a convex tendency during the movement, the pressure of the positioning wheel 32 on the scalp will gradually increase, which may cause discomfort to the user during the scanning movement.

[0065] In S210, the decompression rate K is generated by combining the height difference of the head-shaped convex area corresponding to the entire decompression point sequence with the scanning path length. Then, when scanning again, the second sliding sleeve 302 can be controlled to slowly rise in the scanning interval to ensure that the pressure value in the scanning interval is always in a relatively stable range, further avoiding discomfort to the user during the scanning movement.

[0066] Furthermore, although the steps of the method of the present disclosure are described in a particular order in the accompanying drawings, this does not require or imply that the steps must be performed in this particular order, or that all steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0067] Through the description of the above embodiments, it will be readily understood by those skilled in the art that the example embodiments described herein can be implemented via software or via a combination of software and necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, or mobile hard drive) or on a network and includes several instructions for enabling a computing device (such as a personal computer, server, mobile terminal, or network device) to execute the methods according to the embodiments of the present disclosure.

[0068] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A laser positioning auxiliary device, characterized in that: include: Arc track, first driving component, slider assembly, second driving component and laser emission assembly; The first driving component is connected to the arc track and is used to drive the arc track to swing around a first axis; the first axis is a line connecting the two ends of the arc track; The slider assembly is slidably arranged on the arc track; the second driving component is connected to the slider assembly and is used to drive the slider assembly to move on the arc track; The laser emitting assembly includes a laser emitting end, a clamping portion and a positioning wheel; The clamping portion is provided on the slider assembly, the laser emitting end portion and the clamping portion are provided to slide relative to each other, and a positioning wheel is provided on the laser emitting end portion; the positioning wheel contacts the scalp and is used to maintain the distance between the laser emitting end portion and the scalp area within a preset range; The slider assembly includes: a driving gear, two belt guide pulleys, a transmission belt and a sliding housing; The sliding housing is slidably clamped on an arc-shaped track, and the driving gear and two belt guide wheels are rotatably arranged inside the sliding housing. The rotation axes of the driving gear and the two belt guide wheels are parallel to each other, and the two belt guide wheels are symmetrically arranged relative to the driving gear; the second driving component is connected to the driving gear; A belt placement groove is provided on the outer arc surface of the arc track, the transmission belt is provided in the belt placement groove, and the two ends of the transmission belt are respectively fixed at the two ends of the belt placement groove; a partial area of ​​the transmission belt is sleeved on the transmission gear and two belt guide wheels, and the transmission teeth on the transmission belt are engaged with the transmission gear.

2. A laser positioning auxiliary device according to claim 1, characterized in that: Sliding guide grooves are provided on both side end surfaces of the arc-shaped track; the slider assembly further comprises: a plurality of guide limiting wheel sets; A plurality of guide and limiting wheel groups are respectively arranged on the two sliding side plates of the sliding housing; the two sliding side plates are respectively and parallelly sleeved on the outer sides of the end surfaces of both sides of the arc track; The guide limiting wheel group includes: an upper limiting wheel, a lower limiting wheel and an intermediate limiting wheel; The upper limit wheel, the lower limit wheel and the middle limit wheel are all rotatably arranged on the sliding side plate, the rotation axes of the upper limit wheel and the lower limit wheel are perpendicular to the sliding side plate, and the rotation axis of the middle limit wheel is parallel to the sliding side plate; The upper limiting wheel and the lower limiting wheel are in contact with the upper surface and the lower surface of the sliding guide groove respectively; the middle limiting wheel is in contact with the bottom surface of the sliding guide groove.

3. The laser positioning assist device according to claim 1, characterized in that: The slider assembly also includes: a tensioning slide and a tensioning knob; The tensioning knob is rotatably mounted on the sliding housing, the tensioning slide is slidably mounted in the sliding housing, and the end of the tensioning knob is connected to the tensioning slide; The second driving component is fixedly arranged on the tensioning slide.

4. The laser positioning assist device according to claim 1, characterized in that: The laser emission assembly includes: a laser emission tube, a clamping sleeve, a third driving component, an adjustment spring, an adjustment hook and an adjustment screw; The clamping sleeve is arranged on the outside of the sliding housing, the laser emitting tube is slidably inserted into the clamping sleeve, and the adjustment spring is arranged between the laser emitting tube and the clamping sleeve; The third driving component is fixedly connected to the end of the clamping sleeve away from one end of the laser emitting tube; the third driving component is connected to the adjusting screw, and the sliding direction of the adjusting screw is the same as the sliding direction of the laser emitting tube; the sliding part of the adjusting screw is connected to the adjusting hook, and the hook end of the adjusting hook is hooked in the adjusting ring at the tail of the laser emitting tube, and there is an adjustment gap between the hook end and the adjusting ring.

5. The laser positioning auxiliary device according to claim 1, characterized in that: The laser emission components include: Laser emitting tube, first sliding sleeve, second sliding sleeve, fourth driving component, adjusting spring, adjusting stud and pressure sensor; The first sliding sleeve is clamped on the outside of the sliding housing, the second sliding sleeve is slidably inserted into the first sliding sleeve, and the laser emitting tube is slidably inserted into the second sliding sleeve; The adjusting spring is arranged between the laser emitting tube and the second sliding sleeve; The adjusting screw is connected to a fourth driving component, the fourth driving component is fixedly arranged inside the first sliding sleeve, and the adjusting screw is screwed on the second sliding sleeve; the fourth driving component is a motor; The pressure sensor is arranged between the adjustment spring and the laser emitting tube, or between the adjustment spring and the second sliding sleeve, and is used to obtain the pressure value of the positioning wheel on the scalp.

6. The laser positioning auxiliary device according to claim 4, characterized in that: The first driving component, the second driving component and the third driving component are all motors.

7. The laser positioning auxiliary device according to claim 5, characterized in that: The invention also includes a controller, wherein the controller is respectively connected to the first drive component, the second drive component, the fourth drive component and the pressure sensor; the controller is used to perform the following steps: If the scanning mark is the first scanning mark, each time a new scanning point is reached, the position information and scanning pressure value corresponding to the current scanning point are generated according to the information of the first driving component, the second driving component, the fourth driving component and the pressure sensor; If the scanning pressure value A corresponding to the current scanning point i If the pressure is greater than the first preset pressure threshold, the scanning pressure value A corresponding to the previous scanning point adjacent to the current scanning point is obtained. i-1 ; If A i -A i-1 >0, the fourth driving component is controlled to drive the adjusting screw to rotate, thereby driving the second sliding sleeve to move away from the scalp; During the operation of the fourth driving component, the current scanning pressure value is continuously obtained through the pressure sensor; If the current scanning pressure value is less than the second preset pressure threshold, the fourth driving component is controlled to stop, and the position information and scanning pressure value obtained when the fourth driving component stops are updated to the position information and scanning pressure value corresponding to the current scanning point, and the current scanning point is marked as a rising point; the second preset pressure threshold is less than the first preset pressure threshold.

8. The laser positioning auxiliary device according to claim 7, characterized in that: The position information includes scanning point height information generated by the fourth driving component, The controller is further configured to perform the following steps: If the scan mark is a re-scan mark, the maximum scan point height information Hmax and the minimum scan point height information Hmin corresponding to the decompression point sequence are obtained from the generated scan point record; the decompression point sequence includes at least two consecutive ascending points and the scanning point immediately preceding the consecutive ascending points; Based on Hmax and Hmin, the decompression rate K of the decompression point sequence corresponding to the scanning path interval is generated; K satisfies the following conditions: K = (Hmax - Hmin) / [(n - 1) × L], where n is the total number of scan points in the decompression point sequence, and L is the distance between two adjacent scan points; When the laser moves in the scanning path interval corresponding to the decompression point sequence, the fourth driving component is controlled to drive the second sliding sleeve to move in a direction away from the scalp according to K.

9. The laser positioning auxiliary device according to claim 1, characterized in that: Also includes: Longitudinal lifting bracket; The arc-shaped track is rotatably arranged on the longitudinal lifting bracket.

10. The laser positioning auxiliary device according to claim 1, characterized in that: Also includes: Photoelectric limit switch and limit stop; The photoelectric limit switch is arranged on the arc track, and the limit blocking pieces are arranged on both sides of the sliding housing.

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