Scanning handpiece and laser treatment apparatus

Abstract

The utility model belongs to the technical field of laser treatment equipment, disclose a kind of scanning hand tool and laser therapeutic instrument.The scanning hand tool includes light guide cylinder, scanning main body, cone and contact component, scanning main body includes shell and movement core component, movement core component can be worn to shell and detachably connected with shell, light guide cylinder is detachably connected in shell.Movement core component is provided with cover plate part, cover plate part can be covered in shell, and cover plate part and cone are detachably connected.The scanning hand tool will light guide cylinder, scanning main body, cone and contact component are sequentially detachably connected, and shell and movement core component are detachably connected, so that overall structure is easy to assemble and disassemble.And, movement core component can be sealed and worn in shell, also can be taken out integrally, greatly facilitate the installation and maintenance of movement core component, can further reduce the production and assembly difficulty of scanning hand tool, to be conducive to the production, use and popularization of the scanning hand tool and laser therapeutic instrument.

Description

Technical Field

[0001] This utility model relates to the field of laser therapy equipment technology, and in particular to a scanning handpiece and a laser therapy instrument. Background Technology

[0002] Lasers have demonstrated broad prospects and enormous development potential in the medical field. With their significant advantages such as high precision, low invasiveness, and flexibility, lasers have become an important tool in many medical areas, including surgical treatment, tumor treatment, cosmetic surgery, ophthalmic surgery, and dental treatment. Lasers can achieve precise tissue cutting, coagulation hemostasis, and ablation, significantly improving the accuracy and safety of surgeries while reducing surgical trauma and patient recovery time.

[0003] The scanning handpiece is a component of a laser therapy device. It can rapidly move the laser beam through a scanning system (such as a galvanometer or rotating mirror) to ensure uniform energy distribution and improve treatment effectiveness and accuracy. However, existing scanning handpieces have complex structures and messy connections between components, resulting in greater difficulties in production and assembly, as well as in inspection and maintenance, which hinders the production, use, and promotion of scanning handpieces.

[0004] Based on the above, there is an urgent need for a scanning handpiece and a laser therapy device to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a scanning handpiece and a laser therapy device that have lower production and assembly difficulty, as well as lower inspection and maintenance difficulty.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Scanning tools, including:

[0008] A light guide tube, wherein one end of the light guide tube is the incident end and the other end is the exit end;

[0009] The scanning body includes a housing and a core assembly. One end of the housing has a first opening, and the other end of the housing has a second opening. The core assembly can pass through the second opening into the housing and is detachably connected to the housing. The emission end is detachably connected to the housing so that the light guide tube and the first opening are in communication. The core assembly has a cover plate portion located away from the first opening. The cover plate portion can cover the second opening, and the cover plate portion has a third opening.

[0010] A cone-shaped tube, one end of which is a small-diameter end and the other end is a large-diameter end. The small-diameter end is detachably connected to the cover plate so that the cone-shaped tube and the third opening are connected. The laser can enter the scanning handpiece from the light guide tube, and after the beam position is adjusted by the mechanism assembly, it is output through the cone-shaped tube.

[0011] A contact assembly, which is detachably mounted on the large-diameter end.

[0012] Preferably, the light guide tube includes a first cylindrical body and a first lens group. A light guide hole is provided within the first cylindrical body, extending through the first cylindrical body in a direction from the incident end to the exit end.

[0013] The light guide hole is provided with a first internal thread structure on the inner wall near the incident end. The first internal thread structure is used to thread the first lens group. The light guide hole is provided with at least one of a light-shielding structure and a light-absorbing structure on the inner wall near the exit end. The light-shielding structure and the light-absorbing structure are used to reduce stray light in the light guide hole.

[0014] Preferably, the light-shielding structure includes threaded protrusions and annular protrusions, and the light-absorbing structure includes a light-absorbing layer formed of a light-absorbing material.

[0015] Preferably, the end of the housing with the first opening is also provided with a positioning hole, and the movement assembly is also connected with a positioning pin, which can be inserted into the positioning hole to limit the connection between the housing and the movement assembly.

[0016] Preferably, the cover plate is provided with at least two through holes, the housing is provided with at least two threaded holes, and the scanning body also includes mounting bolts that can pass through the through holes and be inserted into the threaded holes to fix the mechanism assembly and the housing together.

[0017] Preferably, the mechanism assembly further includes a mechanism support, and the cover plate is disposed at the end of the mechanism support away from the first opening. The mechanism support is equipped with a first motor and a second motor. A first galvanometer is installed at the output end of the first motor, and a second galvanometer is installed at the output end of the second motor. The laser can enter the cone after being reflected by the first galvanometer and the second galvanometer in sequence. The first galvanometer can work with the second galvanometer to adjust the beam position along the X-axis and along the Y-axis. The X-axis, the Y-axis and the transmission direction of the laser are perpendicular to each other.

[0018] Preferably, the mechanism assembly further includes a baffle mounted on the mechanism support, and the electronic control component of at least one of the first motor and the second motor is located on the side of the baffle away from the laser, the baffle being used to block stray light from irradiating the electronic control component.

[0019] Preferably, the third opening includes a first segment and a second segment. The first segment is positioned closer to the first opening than the second segment. The inner wall of the first segment is provided with a second internal thread structure. The small-diameter end can be inserted into the third opening and threadedly connected to the cover plate through the second internal thread structure. The inner diameter of the second segment increases in a direction away from the first opening so that the inner wall of the second segment can fit against the outer circumferential surface of the cone.

[0020] Preferably, the contact assembly includes a contact mounting base, an abutting member, and an abutting portion. The contact mounting base is sleeved and installed on the large-diameter end. The contact mounting base is provided with a mounting hole for inserting one end of the abutting member. The other end of the abutting member is fixedly provided with the abutting portion. Furthermore, a first abutting structure is provided in the mounting hole, and a second abutting structure is provided at the end of the abutting member. The first abutting structure and the second abutting structure can abut and limit the movement of the abutting member around its own axis.

[0021] A laser therapy device includes a therapy device body, a light guide arm, and the aforementioned scanning handpiece. One end of the light guide arm is connected to the therapy device body, and the other end of the light guide arm is connected to the light guide tube of the scanning handpiece. The therapy device body can generate laser light, and the laser light can be transmitted to the scanning handpiece through the light guide arm.

[0022] The beneficial effects of this novel scanning handpiece and laser therapy device are as follows: Compared to existing technologies that use a moving fiber optic output end to achieve a larger irradiation area, this medical laser device, with its spherical output end, enables a larger and more uniform irradiation area, reducing reliance on the doctor's operation. Simultaneously, it solves the problem of scratching the inner wall of the endoscopic catheter, further reducing the risk of scratches during catheter penetration and improving fiber optic throughput. Attached Figure Description

[0023] Figure 1 This is a perspective view of the scanning handpiece provided by this utility model;

[0024] Figure 2 This is the first assembly drawing of the housing and core components of the scanning body in this utility model;

[0025] Figure 3 This is the second assembly drawing of the housing and core assembly of the scanning body in this utility model;

[0026] Figure 4 This is an assembly drawing of the movement assembly, cone cylinder, and contact assembly in this utility model;

[0027] Figure 5 This is an assembly cross-sectional view of the light guide tube and the housing in this utility model;

[0028] Figure 6 This is a perspective view of the shell in this utility model;

[0029] Figure 7 This is the third assembly drawing of the housing and core components of the scanning body in this utility model;

[0030] Figure 8 This is a first perspective view of the movement assembly in this utility model;

[0031] Figure 9 This is a second perspective view of the movement assembly in this utility model;

[0032] Figure 10 It is along Figure 5 Internal cross-sectional view of the scanning body and cone in the AA direction;

[0033] Figure 11 yes Figure 10 A magnified view of a section at point B in the middle;

[0034] Figure 12 This is an assembly drawing of the contact assembly and contact mounting base in this utility model;

[0035] Figure 13 yes Figure 12 A magnified view of a section at point C.

[0036] In the picture:

[0037] 1. Light guide tube; 11. First cylinder body; 111. First internal thread structure; 112. Light shielding structure; 12. First lens group;

[0038] 2. Scanning body; 21. Housing; 211. First opening; 212. Second opening; 213. Connector mounting port; 214. Positioning hole; 215. Threaded hole; 216. First protrusion; 217. First recess; 22. Mechanism assembly; 221. Mechanism bracket; 2211. Cover plate; 22111. Third opening; 221111. First section; 221112. Second section; 2212. Mounting part; 22121. Second protrusion; 222. Second lens group; 2221. Light shield; 2222. Lens pressure plate; 223. Reflector mount; 224. Reflector; 225. First motor; 226. First galvanometer; 227. Second motor; 228. Second galvanometer; 229. Electrical control components; 23. Cable connector; 24. Mounting bolt; 25. Positioning pin; 26. Baffle;

[0039] 3. Conical cylinder; 31. Second cylinder; 311. Small diameter end; 312. Large diameter end; 32. Third lens group;

[0040] 4. Contact assembly; 41. Contact mounting base; 411. Mounting hole; 412. First abutting structure; 42. Abutting component; 421. Second abutting structure. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] The following is based on the appendix Figure 1 To be continued Figure 13 This invention introduces the scanning handpiece and laser therapy device provided by this utility model.

[0046] like Figure 1 As shown, in this embodiment, the scanning handpiece mainly includes a light guide tube 1, a scanning body 2, a cone tube 3, and a contact assembly 4. The four components are detachably connected in sequence to realize the transmission of laser light and the adjustment of the beam position, thereby achieving the scanning output effect.

[0047] Specifically, such as Figures 1 to 2 As shown, one end of the light guide tube 1 is the incident end, and the other end is the exit end. The laser can enter from the incident end and exit from the light guide tube 1. The exit end is detachably connected to the scanning body 2, which not only has high connection stability and accuracy, but also allows for easy separation from the scanning body 2. The scanning body 2 includes a housing 21 and a core assembly 22. The core assembly 22 can perform optical adjustments to the laser (e.g., beam position adjustment), while the housing 21 can seal the core assembly 22 and provide a convenient gripping area for the operator, thereby facilitating the treatment operation.

[0048] Specifically, such as Figures 2 to 3As shown, one end of the housing 21 has a first opening 211. After the emission end is connected to the housing 21, the light guide tube 1 communicates with the first opening 211, allowing the laser to enter the scanning body 2 through the first opening 211. The other end of the housing 21 has a second opening 212, through which the core assembly 22 can pass into the housing 21 and be detachably connected to the housing 21. Furthermore, a cover plate 2211 is provided on the core assembly 22 away from the first opening 211. The cover plate 2211 can cover the second opening 212, thereby sealing the core assembly 22 inside the housing 21 and providing good protection. Optionally, the housing 21 also has a connector mounting port 213 for mounting a cable connector 23, thereby connecting the core assembly 22 to the laser therapy instrument body via a cable, cable connector 23, and signal and electrical connections, enabling the function and control of the scanning handpiece.

[0049] like Figure 3 , Figure 4 As shown, in this embodiment, one end of the cone 3 is a small-diameter end 311, and the other end is a large-diameter end 312. The small-diameter end 311 is detachably connected to the cover plate 2211 so that the cone 3 and the third opening 22111 are connected. The laser can enter the scanning handpiece from the light guide tube 1, and after the beam position is adjusted by the core assembly 22, it is output through the cone 3. The contact assembly 4 is detachably installed on the large-diameter end 312. It can not only abut against the skin or tissue surface during treatment operations, which facilitates the positioning of the scanning handpiece and reduces the difficulty of operation, but also facilitates disassembly, replacement and cleaning, which helps to reduce the difficulty of maintenance.

[0050] This scanning handpiece detachably connects the light guide tube 1, scanning body 2, cone tube 3, and contact assembly 4 in sequence, and also detachably connects the housing 21 and the core assembly 22 within the scanning body 2. This simplifies the overall structure of the scanning handpiece, making it easy to disassemble, replace, assemble, and maintain. Furthermore, the core assembly 22 can be sealed within the housing 21 or removed entirely, greatly facilitating its installation and maintenance. This further reduces the difficulty of producing and assembling the scanning handpiece, thus promoting its production, use, and widespread adoption.

[0051] Preferably, such as Figure 5As shown, in this embodiment, the light guide tube 1 includes a first cylindrical body 11 and a first lens group 12. A light guide hole is provided inside the first cylindrical body 11, extending through the first cylindrical body 11 in a direction from the incident end to the exit end. Laser light can propagate through the light guide hole and thus enter the first opening 211. Preferably, a first internal thread structure 111 is provided on the inner wall of the light guide hole near the incident end. The first internal thread structure 111 is used for threaded connection of the first lens group 12. At least one of a light-shielding structure 112 and a light-absorbing structure is provided on the inner wall of the light guide hole near the exit end. The light-shielding structure 112 and the light-absorbing structure are used to reduce stray light within the light guide hole. The first lens group 12 includes a convex lens, a lens seat, a pressure ring, etc., which can compress the laser divergence angle, thereby reducing the generation of stray light. The light-shielding structure 112 can be a threaded protrusion (e.g., an internal thread), an annular protrusion, etc., which can block stray light. The light-absorbing structure includes a light-absorbing layer formed by light-absorbing materials, such as a light-absorbing layer formed by light-absorbing paint or light-absorbing fabric, which can absorb stray light. Through the first lens group 12, the light-shielding structure 112, and the light-absorbing structure, the propagation of the laser can be better constrained, stray light at the final output can be reduced, and the utilization rate of laser energy can be improved. Optionally, the outer peripheral surface of the output end is provided with an external thread structure, and the inner wall surface of the first opening 211 is provided with an internal thread structure, allowing the light guide tube 1 to be easily connected to the housing 21 via a threaded connection, facilitating assembly.

[0052] like Figure 6 , Figure 7 As shown, in this embodiment, the end of the housing 21 with the first opening 211 is also provided with a positioning hole 214, and the mechanism assembly 22 is also connected with a positioning pin 25. The positioning pin 25 can be inserted into the positioning hole 214 to limit the connection between the housing 21 and the mechanism assembly 22. Specifically, the positioning hole 214 is a blind hole, which is beneficial to maintaining the sealing of the scanning body 2. The positioning pin 25 is provided at the end of the mechanism assembly 22 near the first opening 211, and its end is provided with a chamfer. The axial direction of the positioning pin 25 is arranged along the direction from the second opening 212 to the first opening 211, so that when the mechanism assembly 22 is inserted into the housing 21 through the second opening 212, the positioning pin 25 can be easily inserted into the positioning hole 214 to achieve the positioning of the mechanism assembly 22.

[0053] Continue to refer to Figure 6 , Figure 7As shown, the cover plate 2211 has at least two through holes, and the housing 21 has at least two threaded holes 215. The scanning body 2 also includes mounting bolts 24, which can pass through the through holes and be inserted into the threaded holes 215 to fix the mechanism assembly 22 and the housing 21 together. Preferably, the inner wall of the housing 21 has a first protrusion 216 and a first recess 217. The first protrusion 216 has a large thickness, which facilitates the provision of the aforementioned threaded holes 215. The mechanism assembly 22 has a corresponding second protrusion 22121. During assembly, the second protrusion 22121 can slide against the first recess 217 and achieve limiting contact, thereby further improving the ease of assembly of the mechanism assembly 22 and the connection strength after assembly.

[0054] like Figure 8 , Figure 9As shown, in this embodiment, the mechanism assembly 22 specifically includes a mechanism support 221, a second lens group 222, a reflector 224, a reflector mount 223, a first motor 225, a first galvanometer 226, a second motor 227, and a second galvanometer 228. The mechanism support 221 serves as a support structure for mounting and fixing the various structures of the mechanism assembly 22. In this embodiment, the mechanism support 221 includes a cover plate portion 2211 and a mounting portion 2212. The mounting portion 2212 is fixedly connected to the side of the cover plate portion 2211 near the first opening 211 and can be fixedly connected to the aforementioned second lens group 222, reflector mount 223, first motor 225, and second motor 227. The second lens group 222 is fixedly mounted on the end of the mounting portion 2212 away from the cover plate portion 2211 and is coaxially arranged with the first opening 211, allowing the laser to pass sequentially through the first opening 211 and the second lens group 222. The second lens group 222 includes a light-shielding cover 2221, a convex lens, and a lens pressure plate 2222. The lens pressure plate 2222 is used to fix the convex lens to the mounting part 2212. The light-shielding cover 2221 is disposed between the convex lens and the housing 21, which can further block stray light. The reflector mount 223 is used to mount the reflector 224. The reflector 224, the first galvanometer 226, and the second galvanometer 228 are sequentially arranged on the propagation path of the laser after passing through the second lens group 222. The reflector 224 can fix the transmission direction of the laser by bending it 90 degrees. The first galvanometer 226 and the second galvanometer 228 can change the transmission direction of the laser within a range of about 90 degrees (e.g., between 80 and 100 degrees), and finally make the laser enter the cone 3 from the third opening 22111 according to the preset transmission direction and the preset beam position. The first motor 225 is fixedly mounted on the core support 221 and is connected to the first galvanometer 226. The second motor 227 is fixedly mounted on the core support 221 and is connected to the second galvanometer 228. The first motor 225 and the second motor 227 are respectively used to rotate the first galvanometer 226 and the second galvanometer 228, thereby realizing the specific adjustment of the laser transmission direction.

[0055] For example, in this embodiment, the laser beam passes through the second lens group 222 along the Z-axis and irradiates the reflector 224, changing the laser's transmission direction to the Y-axis, then irradiating the first galvanometer 226, further changing the laser's transmission direction to approximately the X-axis, then irradiating the second galvanometer 228, and finally changing the laser's transmission direction back to the Z-axis, and transmitting through the third opening 22111 into the cone 3. When it is necessary to change the laser beam position, for example, changing the beam position from the original axis passing through the third opening 22111 to maintaining a preset distance from the axis of the third opening 22111 along a specific direction, it is only necessary to adjust the setting angle of the first galvanometer 226 and the second galvanometer 228 to achieve the corresponding change in beam position. Since galvanometer systems have been widely used in the industry, their specific working principle will not be described in detail in this utility model.

[0056] It should be noted that by using the reflector 224 and reflector mount 223, the placement of the first motor 225, the first galvanometer 226, the second motor 227, and the second galvanometer 228 within the housing 21 facilitates the miniaturization of the entire scanning handpiece. Furthermore, the first motor 225 and the second motor 227 are both located at the edge of the core assembly 22, allowing for convenient maintenance of the first motor 225 and the second motor 227 after the core assembly 22 is completely removed from the housing 21. Preferably, the first motor 225 is connected to an electrical control component 229, and the second motor 227 is also connected to an electrical control component 229. The two electrical control components 229 can be electrically connected via connecting wires and cable connectors 23, and both electrical control components 229 are also located at the edge of the core assembly 22 for easy installation and maintenance. Preferably, the reflector 224 is an elliptical lens, and along the Z-axis, the projection of the reflector 224 coincides with the convex lens in the second lens group 222, ensuring that the reflector 224 can reflect the laser passing through the second lens group 222 to the first galvanometer 226 to the maximum extent.

[0057] Furthermore, the movement assembly 22 also includes a baffle 26, which is mounted on the movement bracket 221 and isolates the electronic control component 229 from the laser, thereby blocking stray light from illuminating the electronic control component 229 and providing better protection. Exemplarily, in this embodiment, the baffle 26 is an L-shaped plate, with the electronic control component 229 of the second motor 227 located on one side of the baffle 26, and the laser transmitted on the other side of the baffle 26, thus achieving a good shielding effect. Of course, in some other embodiments, baffles 26 of other shapes or in other locations can be used. This invention does not specifically limit this; as long as it effectively blocks stray light from illuminating the electronic control component 229, it falls within the scope of protection of this invention.

[0058] like Figure 10 As shown, in this embodiment, the conical cylinder 3 includes a second cylinder 31 and a third lens group 32. One end of the second cylinder 31 is a small-diameter end 311, and the other end is a large-diameter end 312. The third lens group 32 includes a convex lens and a pressure ring. The inner wall surface of the large-diameter end 312 is provided with an internal thread. The pressure ring can be threadedly connected between the internal thread and the second cylinder 31, thereby installing the convex lens in the large-diameter end 312.

[0059] Preferably, such as Figure 11 As shown, the third opening 22111 includes a first segment 221111 and a second segment 221112. The first segment 221111 is closer to the first opening 211 than the second segment 221112. The inner wall of the first segment 221111 is provided with a second internal thread structure. The small-diameter end 311 can be inserted into the third opening 22111 and is threadedly connected to the cover plate 2211 through the second internal thread structure. The inner diameter of the second segment 221112 is increased in the direction away from the first opening 211, so that the inner wall of the second segment 221112 can fit against the outer circumferential surface of the cone 3. This not only facilitates the connection between the cone 3 and the cover plate 2211, but also improves the connection strength between the two.

[0060] like Figure 12 , Figure 13 As shown, in this embodiment, the contact assembly 4 includes a contact mounting base 41 and an abutment member 42. The contact mounting base 41 has an annular structure and can be fitted onto the large-diameter end 312, and is provided with a mounting hole 411. The mounting hole 411 is used to insert one end of the abutment member 42, and the other end of the abutment member 42 is fixedly provided with an abutment portion. The abutment portion can abut against the skin or other tissue surface, thereby fixing the scanning handpiece. Furthermore, a first abutment structure 412 is provided in the mounting hole 411, and a second abutment structure 421 is provided at the end of the abutment member 42. The first abutment structure 412 and the second abutment structure 421 can abut and limit the movement of the abutment member 42 around its own axis. For example, in this embodiment, the first abutting structure 412 is a first plane disposed within the mounting hole 411, and the second abutting structure 421 is a second plane formed at the end of the abutting member 42. When the abutting member 42 is inserted into the mounting hole 411, the first plane and the second plane can abut against each other, thereby inserting and fixing the abutting member 42 into the contact mounting base 41 in a tight fit, and preventing the abutting member 42 from rotating around its own axis, so that the contact assembly 4 can stably abut against the skin or other tissue surface, reducing the difficulty of operating the scanning handpiece. When it is necessary to replace or clean the abutting member 42, the abutting member 42 can be directly pulled out of the mounting hole 411, thereby facilitating the separate cleaning of the abutting member 42.

[0061] This utility model also provides a laser therapy device, which includes a therapy device body, a light guide arm, and the aforementioned scanning handpiece. One end of the light guide arm is connected to the therapy device body, and the other end is connected to the light guide tube 1 of the scanning handpiece. The therapy device body can generate laser light, which can be transmitted to the scanning handpiece through the light guide arm. The scanning handpiece detachably connects the light guide tube 1, the scanning body 2, the cone 3, and the contact assembly 4 in sequence, and detachably connects the housing 21 and the core assembly 22 within the scanning body 2. This simplifies the overall structure of the scanning handpiece, making it easy to disassemble, replace, assemble, and maintain. Furthermore, the core assembly 22 can be sealed within the housing 21 or removed entirely, greatly facilitating its installation and maintenance. This further reduces the difficulty of manufacturing and assembling the scanning handpiece, thereby promoting its production, use, and adoption.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A scanning handpiece, characterized in that, Including: A light guide tube (1), one end of which is the incident end and the other end is the exit end; The scanning body (2) includes a housing (21) and a mechanism assembly (22). One end of the housing (21) is provided with a first opening (211), and the other end of the housing (21) is provided with a second opening (212). The mechanism assembly (22) can pass through the second opening (212) into the housing (21) and is detachably connected to the housing (21). The emission end is detachably connected to the housing (21) so that the light guide tube (1) and the first opening (211) are connected in communication. The mechanism assembly (22) is provided with a cover plate (2211) at a position away from the first opening (211). The cover plate (2211) can cover the second opening (212), and the cover plate (2211) is provided with a third opening (22111). A cone (3) has a small diameter end (311) at one end and a large diameter end (312) at the other end. The small diameter end (311) is detachably connected to the cover plate (2211) so that the cone (3) and the third opening (22111) are connected. The laser can enter the scanning handpiece from the light guide tube (1), and after the beam position is adjusted by the core assembly (22), it is output through the cone (3). Contact assembly (4), which is detachably mounted on the large-diameter end (312).

2. The scanning handpiece according to claim 1, characterized in that, The light guide tube (1) includes a first tube body (11) and a first lens group (12). A light guide hole is provided inside the first tube body (11), and the light guide hole extends through the first tube body (11) in a direction from the incident end to the exit end. The light guide hole is provided with a first internal thread structure (111) near the inner wall of the incident end. The first internal thread structure (111) is used to thread the first lens group (12). The light guide hole is provided with at least one of a light-shielding structure (112) and a light-absorbing structure near the inner wall of the exit end. The light-shielding structure (112) and the light-absorbing structure are used to reduce stray light in the light guide hole.

3. The scanning handpiece according to claim 2, characterized in that, The light-shielding structure (112) includes threaded protrusions and annular protrusions, and the light-absorbing structure includes a light-absorbing layer formed of a light-absorbing material.

4. The scanning handpiece according to claim 1, characterized in that, The housing (21) is provided with a positioning hole (214) at one end where the first opening (211) is provided, and the movement assembly (22) is also connected with a positioning pin (25). The positioning pin (25) can be inserted into the positioning hole (214) to limit the connection between the housing (21) and the movement assembly (22).

5. The scanning handpiece according to claim 4, characterized in that, The cover plate (2211) is provided with at least two through holes, and the housing (21) is provided with at least two threaded holes (215). The scanning body (2) also includes mounting bolts (24), which can pass through the through holes and be inserted into the threaded holes (215) to fix the mechanism assembly (22) and the housing (21) together.

6. The scanning handpiece according to claim 1, characterized in that, The mechanism assembly (22) further includes a mechanism support (221). The cover plate (2211) is disposed at one end of the mechanism support (221) away from the first opening (211). The mechanism support (221) is equipped with a first motor (225) and a second motor (227). The output end of the first motor (225) is equipped with a first galvanometer (226), and the output end of the second motor (227) is equipped with a second galvanometer (228). The laser can enter the cone (3) after being reflected by the first galvanometer (226) and the second galvanometer (228) in sequence. The first galvanometer (226) can work with the second galvanometer (228) to adjust the beam position along the X-axis and along the Y-axis. The X-axis, the Y-axis and the transmission direction of the laser are perpendicular to each other.

7. The scanning handpiece according to claim 6, characterized in that, The mechanism assembly (22) further includes a baffle (26) mounted on the mechanism support (221). The electronic control component (229) of at least one of the first motor (225) and the second motor (227) is located on the side of the baffle (26) away from the laser. The baffle (26) is used to block stray light from irradiating the electronic control component (229).

8. The scanning handpiece according to claim 1, characterized in that, The third opening (22111) includes a first section (221111) and a second section (221112). The first section (221111) is closer to the first opening (211) than the second section (221112). The inner wall of the first section (221111) is provided with a second internal thread structure. The small diameter end (311) can be inserted into the third opening (22111) and threadedly connected to the cover plate (2211) through the second internal thread structure. The inner diameter of the second section (221112) is increased in a direction away from the first opening (211) so that the inner wall of the second section (221112) can fit against the outer circumferential surface of the cone (3).

9. The scanning handpiece according to claim 1, characterized in that, The contact assembly (4) includes a contact mounting base (41), an abutting member (42), and an abutting portion. The contact mounting base (41) is sleeved on the large-diameter end (312). The contact mounting base (41) is provided with a mounting hole (411). The mounting hole (411) is used to insert one end of the abutting member (42). The other end of the abutting member (42) is fixedly provided with the abutting portion. A first abutting structure (412) is provided in the mounting hole (411), and a second abutting structure (421) is provided at the end of the abutting component (42). The first abutting structure (412) and the second abutting structure (421) can abut and limit the rotation of the abutting component (42) around its own axis.

10. A laser therapy device, characterized in that, The laser therapy device includes a therapy device body, a light guide arm, and a scanning handpiece as described in any one of claims 1-9. One end of the light guide arm is connected to the therapy device body, and the other end of the light guide arm is connected to the light guide tube (1) of the scanning handpiece. The therapy device body can generate laser, and the laser can be transmitted to the scanning handpiece through the light guide arm.

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