Laser treatment hand tool

Abstract

The utility model relates to the technical field of laser treatment, and particularly discloses a laser treatment hand tool which comprises a base shell, a lens assembly, a sleeve and a detection assembly, the base shell is provided with a light guide channel, the lens assembly is movably arranged in the light guide channel, the sleeve is rotationally connected to the outer side of the base shell in a sleeved mode, and the detection assembly is arranged in the sleeve. The detection assembly is arranged in the sleeve to drive the lens assembly to move in the light guide channel, the detection assembly comprises a circuit board and a photoelectric sensor arranged on the circuit board, detection windows are formed in the sleeve, and every two axially adjacent detection windows have overlapped parts in the circumferential direction of the sleeve; one of the base shell and the sleeve is configured to reflect an optical signal emitted by the photoelectric sensor, and the other one is configured to absorb the optical signal emitted by the photoelectric sensor; according to the scheme, based on the distribution mode that the detection windows partially coincide in the circumferential direction of the sleeve, the rotating positions detected by the detection assembly are larger than the distribution number of the photoelectric sensors, and the detection precision of the detection assembly on the rotating positions of the sleeve can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser treatment, in particular to a laser treatment hand tool. Background Art

[0002] Cosmetic laser therapy uses a laser instrument to emit a light beam of a specific wavelength, which acts on the skin. It can destroy pigments, stimulate collagen regeneration and dilate capillaries, thereby achieving the cosmetic effect of improving skin problems and improving skin quality.

[0003] When performing laser irradiation therapy, it is usually necessary to adjust the focal length of the laser therapy handpiece to adjust the size and shape of the light spot, thereby ensuring that the light spot is consistent with the size of the lesion area, and avoiding unnecessary damage to the healthy tissue around the lesion. In the related art, the laser therapy handpiece can be focused by manual adjustment, but it is difficult for the manually focused laser therapy handpiece to effectively detect and record the size of the light spot used, and it is difficult to ensure the safety and effectiveness of the entire treatment process.

[0004] Therefore, accurate and effective detection of the spot size used in laser treatment handpieces is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The utility model discloses a laser treatment hand tool to solve the above technical problems existing in the related technology.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The present application provides a laser therapy handpiece, which includes a base shell, a lens assembly, a sleeve and a detection assembly, wherein the base shell is provided with a light guide channel, the lens assembly is movably arranged in the light guide channel, and the sleeve is rotatably sleeved on the outer side of the base shell to drive the lens assembly to move in the light guide channel.

[0008] The detection component includes a circuit board and at least two photoelectric sensors arranged on the circuit board. The distribution direction of the photoelectric sensors is parallel to the axial direction of the base shell. The sleeve is provided with at least two detection windows distributed along the axial direction of the sleeve.

[0009] Two axially adjacent detection windows have overlapping portions in the circumferential direction of the sleeve, and one of the base shell and the sleeve is configured to reflect the light signal emitted by the photoelectric sensor, and the other is configured to absorb the light signal emitted by the photoelectric sensor.

[0010] Furthermore, the detection window is a long hole extending along the circumference of the sleeve and penetrating the sleeve.

[0011] Furthermore, the number of the detection windows is three, and the first extension length of the detection window located in the middle is greater than the second extension length of the detection windows located on both sides of the detection window in the axial direction.

[0012] Furthermore, the ratio of the first extension length to the second extension length is 3:2, and the overlapping portion of two adjacent detection windows is 1 / 3 of the first extension length.

[0013] Furthermore, the laser therapy handpiece also includes a shell, the base shell, the sleeve and the detection component are all arranged in the shell, an operation window penetrating the shell is arranged on the shell, and a part of the sleeve is located in the operation window.

[0014] Furthermore, the sleeve is also provided with light spot size markings arranged and distributed along the circumference of the sleeve, and a portion of the light spot size markings is located within the operating window.

[0015] Furthermore, the laser therapy handpiece also includes a damping module, which includes an elastic member and an abutment member connected to the elastic member. The sleeve is provided with positioning recesses distributed along its circumference. The elastic member is configured to apply an elastic force to the abutment member so that the abutment member is positioned and fitted in the positioning recess.

[0016] Furthermore, the abutment member is a spherical structure, and the positioning recess is a concave arc surface that matches the spherical structure.

[0017] Furthermore, the circuit board is in a strip-shaped structure extending along the base shell.

[0018] Furthermore, the laser therapy handpiece also includes a connecting piece, the base shell is provided with a spiral guide groove penetrating the base shell, the connecting piece is inserted in the spiral guide groove, one end of the connecting piece is connected to the lens assembly, and the other end of the connecting piece is slidably matched with the sleeve along the axial direction of the base shell.

[0019] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0020] The laser therapy handpiece of the present application adjusts the rotation of the sleeve so that the sleeve drives the lens assembly to move in the light guiding channel through the connecting piece, thereby achieving focusing of the laser therapy handpiece, and the focal length of the laser therapy handpiece is related to the rotation position of the sleeve. The detection module recognizes the detection marks distributed circumferentially on the sleeve, and can detect the rotation position of the sleeve in the circumferential direction, thereby achieving detection and recording of the spot size, thereby ensuring the safety and effectiveness of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a laser treatment handpiece according to an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the internal structure of the laser treatment handpiece according to an embodiment of the present application;

[0024] Figure 3 is a schematic structural diagram of a sleeve in an embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the relative positions of the detection component and the sleeve in an embodiment of the present application;

[0026] Figure 5 is a schematic structural diagram of a base shell of an embodiment of the present application;

[0027] Figure 6 This is one of the assembly schematic diagrams of the base housing, lens assembly and sleeve of the embodiment of the present application;

[0028] Figure 7 This is the second schematic diagram of the assembly of the base housing, the lens assembly and the sleeve of the embodiment of the present application;

[0029] Figure 8 It is a schematic structural diagram of the damping module of the laser therapy handpiece according to an embodiment of the present application.

[0030] In the figure:

[0031] 100, base shell; 110, light guide channel; 120, spiral guide groove; 130, positioning protrusion; 200, lens assembly; 210, base; 220, lens unit; 300, sleeve; 310, detection window; 320, spot size mark; 330, positioning recess; 340, anti-slip portion; 400, detection assembly; 410, circuit board; 420, photoelectric sensor; 500, housing; 510, operation window; 600, damping module; 620, abutment; 700, connecting piece. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The following is combined with Figure 1 to Figure 8 , a laser therapy hand tool provided in an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0035] See also Figure 1 to Figure 8 The embodiment of the present application discloses a laser treatment handpiece, which is used for cosmetic laser treatment. The laser treatment handpiece can introduce laser of a specific wavelength into the subcutaneous tissue of the human body, and perform laser irradiation on the target to be treated in the human skin, such as pigment particles, acne, etc., so as to improve the patient's skin problems and enhance the skin quality.

[0036] In the embodiments of this application, please refer to 1. Figure 2 and Figure 3 The disclosed laser therapy handpiece includes a base shell 100, a lens assembly 200, a sleeve 300 and a detection assembly 400, wherein the base shell 100 is a basic component of the laser therapy handpiece, and can provide a mounting and protection basis for the lens assembly 200 and the sleeve 300. Specifically, the base shell 100 is a cylindrical structure, and the base shell 100 is provided with a light guide channel 110 that penetrates along its axial direction. The lens assembly 200 is movably arranged in the light guide channel 110, and the moving direction of the lens assembly 200 is the axial direction of the base shell 100. The laser beam can be incident in the light guide channel 110 from the proximal opening of the light guide channel 110, and can be emitted from the distal opening of the light guide channel 110 after passing through the lens assembly 200.

[0037] Please see 2. Figure 3 and Figure 4The sleeve 300 is rotatably sleeved on the outer side of the base shell 100. For example, the sleeve 300 is coaxially sleeved on the outer side of the base shell 100. In the embodiment of the present application, the axial direction of the base shell 100 is also the axial direction of the entire laser treatment handpiece. The lens assembly 200 can be driven to move in the light guide channel 110 by driving the sleeve 300 to rotate.

[0038] Specifically, see Figure 5 , Figure 6 and Figure 7 A spiral guide groove 120 penetrating the base shell 100 is provided on the base shell 100, and the spiral guide groove 120 spirally extends along the axial direction of the base shell 100. The sleeve 300 is connected to the lens assembly 200 through a connector 700 inserted in the spiral guide groove 120 and drives the lens assembly 200 to move. The inner end of the connector 700 is connected to the lens assembly 200, for example, the inner end of the connector 700 is threadedly matched with the lens assembly 200, and the outer end of the connector 700 is slidably matched with the sleeve 300 in the axial direction of the base shell 100. Exemplarily, the inner wall of the sleeve 300 is provided with a guide groove extending along its axial direction, and the connector 700 is slidably matched in the guide groove. When the sleeve 300 is rotated, the connecting member 700 rotates together with the sleeve 300 and moves axially relative to the sleeve 300, thereby driving the lens assembly 200 in the base shell 100 to move axially relative to the base shell 100, thereby achieving focusing of the laser beam. By way of example, the laser therapy handpiece of the embodiment of the present application can achieve focusing by manually rotating the sleeve 300.

[0039] In the embodiment of the present application, the detection assembly 400 is used to detect the rotation position of the sleeve 300 in the circumferential direction. By detecting the rotation position of the sleeve 300 in the circumferential direction, the spot size can be detected and recorded to ensure the safety and effectiveness of the treatment process. Specifically, the detection assembly 400 includes a circuit board 410 and at least two photoelectric sensors 420 arranged on the circuit board 410. The distribution direction of the photoelectric sensors 420 is parallel to the axial direction of the base shell 100. The circuit board 410 is opposite to the sleeve 300, so that the photoelectric sensors 420 face the sleeve 300. The sleeve 300 is provided with at least two detection windows 310 distributed along the axial direction of the sleeve 300. The number of the detection windows 310 is consistent with the number of the photoelectric sensors 420, and the positions of the two in the axial direction of the laser treatment handpiece correspond to each other. At the same time, the detection windows are also distributed along the circumference of the sleeve 300, so that when the sleeve 300 rotates, the detection windows 310 can rotate to a position corresponding to the photoelectric sensors 420.

[0040] In the embodiment of the present application, one of the base shell 100 and the sleeve 300 is configured to reflect the light signal emitted by the photoelectric sensor 420, and the other is configured to absorb the light signal emitted by the photoelectric sensor 420. Exemplarily, the outer wall of the sleeve 300 can reflect the light signal emitted by the photoelectric sensor, and the outer wall of the base shell 100 can absorb the light signal emitted by the photoelectric sensor. Exemplarily, the outer wall of the base shell 100 is coated with a dark coating to absorb the light signal. When the light signal emitted by the photoelectric sensor 420 is irradiated on the sleeve 300, the sleeve 300 can reflect the light signal, and when the sleeve 300 is rotated so that the photoelectric sensor 420 is opposite to the detection window 310, the light signal emitted by the photoelectric sensor 420 can pass through the detection window 310 and be absorbed by the base shell 100, thereby causing a change in the detection signal of the photoelectric sensor 420, so that the current rotation position of the sleeve 300 can be detected, and then the spot size at the current rotation position can be detected and recorded.

[0041] In the embodiment of the present application, two axially adjacent detection windows 310 have overlapping parts in the circumferential direction of the sleeve 300. For example, the detection signal when the light signal of the photoelectric sensor 420 is emitted to the sleeve 300 is "0", and the detection signal when the light signal of the photoelectric sensor 420 passes through the detection window 310 and is emitted to the base shell 100 is "1". In the case where there are two photoelectric sensors 420 and two detection windows 310, three detection signals of "01", "11" and "10" can appear, thereby enabling detection of three rotational positions of the sleeve 300. It can be seen from this that, compared with each photoelectric sensor 420 detecting one rotational position separately, the layout mode of the detection windows 310 overlapping in the circumferential direction can realize the detection of more rotational positions, effectively reducing the number of photoelectric sensors 420 arranged. At the same time, by cleverly designing the overlapping parts of the detection windows 310 in the circumferential direction, the rotational positions of the sleeve 300 can be divided more finely, and the accuracy of the detection of the rotational position of the sleeve 300 can be improved.

[0042] For further technical solutions, see Figure 3 and Figure 4 The detection window 310 is a long hole extending circumferentially along the sleeve 300 and penetrating the sleeve 300. The detection window 310 is in the form of a circumferentially extending long hole. During the rotation of the sleeve 300, when the detection window 310 rotates to a position relative to the photoelectric sensor 420, the photoelectric sensor 420 can continuously receive a detection signal of "1", thereby improving the accuracy and precision of the detection.

[0043] In the examples of this application, please continue to refer to Figure 3 and Figure 4There are three detection windows 310, and there are three corresponding photoelectric sensors 420. The detection window 310 in the middle and the detection windows 310 on both sides of the axial direction have overlapping parts in the circumferential direction. In this way, five detection signals of "100", "110", "010", "011" and "001" can be formed, that is, the rotation position of the sleeve 300 is divided more finely, which can improve the detection accuracy of the rotation position of the sleeve 300 while streamlining the number of photoelectric sensors 420.

[0044] In the embodiment of the present application, the first extension length of the detection window 310 located in the middle is greater than the second extension length of the detection windows 310 located on both sides of the axial direction thereof, that is, the detection window 310 in the middle extends longer. In this way, it can be ensured that the detection window 310 in the middle has a portion that overlaps with the detection windows 310 on both sides, and also has a portion that does not overlap with the detection windows 310 on both sides, so as to form the five detection signals mentioned above.

[0045] In a further technical solution, the ratio of the first extension length to the second extension length is 3:2, and the overlapped portion of two adjacent detection windows 310 is 1 / 3 of the first extension length. In this case, please refer to Figure 1 During the rotation of the sleeve 300, the circumferential spans occupied by the above-mentioned five detection signals "100", "110", "010", "011" and "001" are the same. Even if the rotation amplitude corresponding to each detection signal is as similar as possible, the photoelectric sensor 420 can respond to the rotation of the sleeve 300 in a more consistent manner during the detection process, thereby reducing the detection error.

[0046] In some embodiments of this application, see Figure 1 and Figure 2 The laser treatment handpiece may further include a housing 500, which has a storage space and can provide a mounting base for the aforementioned base shell 100, lens assembly 200, sleeve 300 and detection assembly 400. Specifically, the housing 500 is disposed on the outside of the sleeve 300. In order to facilitate the rotation adjustment of the sleeve 300, an operation window 510 penetrating the housing 500 is disposed on the housing 500. A portion of the sleeve 300 is located in the operation window 510. The operator can realize the rotation adjustment of the sleeve 300 through the portion of the sleeve 300 exposed in the operation window 510.

[0047] In a further technical solution, the sleeve 300 is provided with an anti-slip portion 340 extending along its circumference. The anti-slip portion 340 may be in the form of anti-slip grooves or anti-slip protrusions. The operator may contact and rotate the anti-slip portion 340 to adjust the focal length. The anti-slip portion 340 can make the operator's focusing operation more stable and reliable, thereby improving the fineness of the spot size adjustment.

[0048] In a further technical solution, the sleeve 300 is further provided with a spot size mark 320 adjacent to the anti-slip portion 340, and the spot size mark 320 is arranged and distributed along the circumference of the sleeve 300. For example, the spot size mark 320 can be a combination of a digital mark and a scale mark, and the two are distributed along the circumference of the sleeve 300, and the spot size mark 320 also has a portion exposed in the operation window 510. The operator can intuitively judge the spot size used through the operation window 510. For example, it can be seen that the spot size is 5mm, 10mm, 15mm, etc. This can help the operator to more accurately realize the spot size of the laser beam used, and then accurately control the area on the skin where the laser beam is irradiated, thereby achieving precise treatment of the target lesion area.

[0049] In the examples of this application, see Figure 2 and Figure 8 The laser treatment handpiece further includes a damping module 600, which is disposed in the housing 500 and is configured to apply a damping force to the sleeve 300 to prevent the sleeve 300 from rotating. It should be noted that in the embodiment of the present application, the damping module 600 is not provided to limit the sleeve 300 from rotating, but after the sleeve 300 is rotated to adjust the spot size to a suitable size, a certain resistance force can be applied to the sleeve 300 to limit the sleeve 300 from rotating randomly, thereby ensuring the stability of the spot size, and when the operator needs to adjust the focus, the damping force applied by the damping module 600 can be overcome.

[0050] In an optional embodiment, the damping module 600 includes an elastic member (not shown) and an abutment member 620 connected to the elastic member, and the elastic member is configured to apply an elastic force to the abutment member 620 so that the abutment member 620 abuts against the sleeve 300. Exemplarily, the elastic member can be a spring, and the abutment member 620 can be a spherical structure. The abutment member 620 can abut against the end face of the sleeve 300 in the axial direction.

[0051] In a further technical solution, the sleeve 300 is provided with positioning recesses 330 distributed along its circumference, and the positioning recesses 330 may be a concave arc surface, and the abutment 620 of the spherical structure is positioned and matched with the positioning recesses 330 to increase the damping force of the damping module 600. When the operator adjusts the spot size, it is necessary to deliberately apply force to make the abutment 620 disengage from the positioning recesses. Based on the positioning effect of the positioning recesses 330 on the abutment 620, during laser treatment, the spot size is maintained at a specific size and will not be easily changed. Only when the operator rotates the sleeve 300 will the abutment 620 be disengaged from the positioning recess 330, thereby ensuring the stability of the spot size.

[0052] In the embodiment of the present application, the focusing of the laser treatment handpiece is achieved by moving the lens assembly 200 in the base shell 100. The lens assembly 200 includes a base 210 and at least one lens unit 220. The base 210 is a basic component of the lens assembly 200 and can provide a mounting base for the lens unit 220. Specifically, the base 210 has a mounting cavity that runs through the axial direction thereof, and the lens unit 220 is disposed in the mounting cavity. For example, see Figure 2 , Figure 3 and Figure 4 The base 210 is a cylindrical structure, two lens units 220 are arranged in the installation cavity, and the two lens units 220 are distributed along the axial direction of the installation cavity. The inner end of the connecting member 700 is connected to the base 210. When the connecting member 700 slides in the spiral guide groove 120, the base 210 moves axially relative to the base shell 100, thereby achieving focusing. It can be understood that the number of lens units 220 can be adaptively selected according to actual use requirements, and this application does not make specific restrictions on this.

[0053] For further technical solutions, see Figure 5 , Figure 6 and Figure 7 The base shell 100 is a cylindrical structure, and the base shell 100 has a radially outwardly protruding positioning protrusion 130. When the sleeve 300 is rotatably sleeved on the base shell 100, the sleeve 300 can be positioned and matched with the positioning protrusion 130 in the axial direction. In this way, when the sleeve 300 and the base shell 100 are assembled, the convenience of assembling the two can be improved based on the positioning effect of the positioning protrusion 130.

[0054] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0055] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A laser treatment hand tool, characterized in that: It comprises a base shell (100), a lens assembly (200), a sleeve (300) and a detection assembly (400); wherein: The base shell (100) is provided with a light guide channel (110), the lens assembly (200) is movably arranged in the light guide channel (110), and the sleeve (300) is rotatably sleeved on the outside of the base shell (100) to drive the lens assembly (200) to move in the light guide channel (110); The detection component (400) comprises a circuit board (410) and at least two photoelectric sensors (420) arranged on the circuit board (410); the distribution direction of the photoelectric sensors (420) is parallel to the axial direction of the base shell (100); and the sleeve (300) is provided with at least two detection windows (310) distributed along the axial direction of the sleeve (300); Two axially adjacent detection windows (310) have overlapping portions in the circumferential direction of the sleeve (300), and one of the base shell (100) and the sleeve (300) is configured to reflect the light signal emitted by the photoelectric sensor, and the other is configured to absorb the light signal emitted by the photoelectric sensor.

2. The laser therapy handpiece according to claim 1, characterized in that: The detection window (310) is a long hole extending along the circumference of the sleeve (300) and penetrating the sleeve (300).

3. The laser therapy handpiece according to claim 2, characterized in that: The number of the detection windows (310) is three, and the first extension length of the detection window (310) located in the middle is greater than the second extension length of the detection windows (310) located on both sides of the detection window (310) in the axial direction.

4. The laser therapy handpiece according to claim 3, characterized in that: The ratio of the first extension length to the second extension length is 3:2, and the overlapping portion of two adjacent detection windows (310) is 1 / 3 of the first extension length.

5. The laser therapy handpiece according to claim 1, characterized in that: It also comprises a housing (500), wherein the base housing (100), the sleeve (300) and the detection assembly (400) are all arranged in the housing (500); The housing (500) is provided with an operating window (510) penetrating the housing (500), and a portion of the sleeve (300) is located within the operating window (510).

6. The laser therapy handpiece according to claim 5, characterized in that: The sleeve (300) is also provided with light spot size marks (320) arranged and distributed along the circumference of the sleeve (300), and a portion of the light spot size marks (320) is located within the operating window (510).

7. The laser therapy handpiece according to claim 1, characterized in that: The invention also comprises a damping module (600), wherein the damping module (600) comprises an elastic member (610) and an abutment member (620) connected to the elastic member (610); the sleeve (300) is provided with positioning recesses (330) distributed along its circumference; the elastic member (610) is configured to apply an elastic force to the abutment member (620) so that the abutment member (620) is positioned and fitted in the positioning recess (330).

8. The laser therapy handpiece according to claim 7, characterized in that: The abutment member (620) is a spherical structure, and the positioning recess (330) is a concave arc surface that matches the spherical structure.

9. The laser therapy handpiece according to claim 1, characterized in that: The circuit board (410) is in a strip-shaped structure extending along the base shell (100).

10. The laser therapy handpiece according to claim 1, characterized in that: It also comprises a connecting piece (700), the base shell (100) is provided with a spiral guide groove (120) penetrating the base shell (100), the connecting piece (700) is inserted into the spiral guide groove (120), one end of the connecting piece (700) is connected to the lens assembly (200), and the other end of the connecting piece (700) is slidably matched with the sleeve (300) along the axial direction of the base shell (100).

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