Laser treatment head and laser therapy apparatus

Abstract

Disclosed in the present application are a laser treatment head and a laser therapy apparatus, wherein the laser treatment head comprises a housing, a laser generation module, an annular light generation module, and a reflection module. The housing has an accommodating cavity. A light-transmitting groove in communication with the accommodating cavity is formed on an outer peripheral wall of one end of the housing. The light-transmitting groove extends along the circumferential direction of the housing. A transparent protective cover is arranged in the light-transmitting groove. The laser generation module is arranged at one end of the accommodating cavity away from the light-transmitting groove. The laser generation module is used for emitting a first laser. The annular light generation module is arranged in the accommodating cavity and is located between the laser generation module and the light-transmitting groove. The reflection module is conical or truncated conical. The peripheral side of the reflection module is a reflection surface. The reflection surface is arranged facing the light-transmitting groove.

Description

Laser treatment head and laser treatment device

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202410698611.1, filed on May 31, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of laser therapy technology, and in particular to a laser therapy head and a laser therapy device. Background Technology

[0004] Currently, conventional intracavitary laser treatments generally employ either direct beam application or unilateral reflection.

[0005] In the direct beam laser treatment scheme, the treatment beam is emitted directly from the front end of the treatment head. There are two main types: one is to output laser through a small collimated beam and a controllable emission head. The disadvantages are that the treatment efficiency is very low for annular cavity walls, the treatment time is long, and the emission head needs to be bent to irradiate the side walls, which can easily cause scratches on the inner wall of the cavity. The other type is to directly irradiate forward through a diverging beam, using a large divergence angle to irradiate the entire cavity wall. The disadvantages are uneven energy distribution and large differences in energy density at different locations irradiated by the same beam, which affects the treatment effect.

[0006] The unilateral reflection method involves adding a 45-degree reflector to the front of the laser output head to reflect the forward-shielded light spot to one side. The advantage is that it can avoid the formation of light-blocking and shadow areas. The disadvantage is that it is inefficient. If the entire cavity wall needs to be irradiated, manual control of rotation is required, which is inefficient and takes a long time. Summary of the Invention

[0007] The main objective of this application is to provide a laser treatment head that can simultaneously and uniformly treat the inner wall of cavities, thereby improving the treatment efficiency of laser treatment within cavities.

[0008] To achieve the above objectives, the laser treatment head proposed in this application includes a shell, a laser generating module, a ring light generating module, and a reflection module. The shell has a receiving cavity, and a light-transmitting groove communicating with the receiving cavity is formed on the outer peripheral wall of one end of the shell. The light-transmitting groove extends circumferentially along the shell, and a transparent protective cover is provided inside the light-transmitting groove. The laser generating module is located at the end of the receiving cavity away from the light-transmitting groove, and the laser generating module is used to emit a first laser. The ring light generating module is located in the receiving cavity and between the laser generating module and the light-transmitting groove, and is used to convert the first laser emitted by the laser generating module into a ring laser. The reflection module is conical or truncated conical, and the peripheral side of the reflection module is a reflective surface. The reflective surface is arranged facing the light-transmitting groove, and is used to reflect the ring laser and emit it outward through the light-transmitting groove.

[0009] In one embodiment of this application, there are multiple reflective modules, one of which is detachably connected to the cavity wall of the receiving cavity, and the cone apex angles of the reflective surfaces of any two reflective modules are different.

[0010] In one embodiment of this application, the reflection module is a conical reflector.

[0011] In one embodiment of this application, the ring light generating module includes an X-mirror and a Y-mirror, which are spaced apart within the receiving cavity. The ring laser is generated by rapidly adjusting the X-mirror and the Y-mirror.

[0012] Alternatively, the ring light generating module is a conical lens, and the first laser is refracted by the conical lens to generate the ring laser;

[0013] Alternatively, the ring light generating module is a ring grating, which is disposed perpendicular to the optical path in the receiving cavity, and the first laser is generated by diffraction through the ring grating.

[0014] In one embodiment of this application, the laser treatment head further includes a spot shaping module, which is disposed in the receiving cavity and located between the laser generating module and the reflection module, and is used to adjust the laser spot size and divergence angle.

[0015] In one embodiment of this application, the spot shaping module includes a lens and a mounting frame. The mounting frame is movably connected to the cavity wall of the housing. The lens is mounted on the mounting frame. The spot size and divergence angle of the laser are adjusted by adjusting the distance between the mounting frame and the laser generating module.

[0016] In one embodiment of this application, the laser treatment head includes a first spot shaping module disposed between the laser generating module and the ring light generating module, and a second spot shaping module disposed between the ring light generating module and the reflection module.

[0017] In one embodiment of this application, the laser treatment head further includes a sensor module, which includes a plurality of image sensing units. One of the image sensing units is located at the center of one end face of the outer shell near the light-transmitting groove, and at least some of the image sensing units are evenly spaced and arranged around the cavity wall of the receiving cavity.

[0018] In one embodiment of this application, the outer shell is provided with a negative pressure channel, which extends along the length of the outer shell and is arranged around the circumferential direction of the outer shell. One opening of the negative pressure channel is connected to the light-transmitting groove, and the other opening is connected to a negative pressure generating device to adsorb volatiles during the treatment process.

[0019] This application also proposes a laser therapy device, including the laser therapy head as described above.

[0020] The laser treatment head proposed in this application includes a shell, a laser generating module, a ring light generating module, and a reflection module. All three modules are housed within the receiving cavity of the shell. One end of the shell has a light-transmitting groove, on which a transparent shield is provided to prevent internal contamination. The first laser emitted by the laser generating module is converted into ring light by the ring light generating module, and then reflected by the reflection module before exiting through the transparent shield on the light-transmitting groove onto the inner wall of the cavity to be treated, thus treating the cavity wall. The ring laser, after being reflected by the reflection module, maintains its ring shape, allowing simultaneous treatment of the ring-shaped area of ​​the cavity wall without rotating the output head, thereby improving the treatment efficiency of laser treatment within the cavity. Furthermore, the simultaneous irradiation of the ring laser onto the reflection module, with a uniform reflection angle, ensures that the energy density of the reflected ring-shaped treatment laser is the same throughout, enhancing the treatment effect of this laser treatment head. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the structure of an embodiment of the laser treatment head of this application.

[0023] Explanation of icon numbers:

[0024] 100. Laser treatment head; 1. Outer shell; 11. Light-transmitting groove; 12. Transparent protective cover; 13. Stepped surface; 14. Negative pressure channel; 15. Cavity wall; 2. Laser generating module; 3. Ring light generating module; 4. Reflection module; 41. Reflecting surface; 42. Bottom surface; 5. Spot shaping module; 6. Sensor module.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0029] Currently, conventional laser treatments for endovascular cavity use a direct spot beam, which has the disadvantages of low efficiency. If the entire cavity wall needs to be irradiated, manual rotation is required, further reducing efficiency and time. Therefore, this application proposes a laser treatment head capable of simultaneously and uniformly treating the endovascular cavity wall.

[0030] This application proposes a laser treatment head 100.

[0031] In this embodiment of the application, referring to FIG1, the laser treatment head 100 includes a shell 1, a laser generating module 2, a ring light generating module 3, and a reflection module 4. The shell 1 has a receiving cavity, and a light-transmitting groove 11 communicating with the receiving cavity is formed on the outer peripheral wall of one end of the shell 1. The light-transmitting groove 11 extends circumferentially along the shell 1, and a transparent cover 12 is provided inside the light-transmitting groove 11. The laser generating module 2 is located at the end of the receiving cavity away from the light-transmitting groove 11, and the laser generating module 2 is used to emit a first laser. The ring light generating module 3 is located in the receiving cavity and between the laser generating module 2 and the light-transmitting groove 11, and is used to convert the first laser emitted by the laser generating module 2 into a ring laser. The reflection module 4 is conical or truncated conical, and the peripheral side of the reflection module 4 is a reflecting surface 41. The reflecting surface 41 is arranged facing the light-transmitting groove 11, and is used to reflect the ring laser and emit it outward through the light-transmitting groove 11.

[0032] In this embodiment, since the laser treatment head 100 is used for laser treatment within a cavity, the outer shell 1 extends into the cavity. The outer shell 1 should be made of a non-toxic and harmless material, such as medical plastic or lightweight metal. The outer shell 1 can be cylindrical or bullet-shaped, allowing for smooth insertion into the cavity to be treated without scratching the cavity wall, reducing patient discomfort, and improving the treatment experience. The laser generating module 2 can output the first laser through fiber optic guidance or through spatial optical coupling via a universal arm; no further limitations are made here. The cross-section of the first laser along its propagation direction is a dotted light spot. The ring light generating module 3 can achieve rapid movement of the first laser to form a ring laser by quickly adjusting the X-mirror and Y-mirror, or it can form a ring Bessel beam through refraction by a conical lens, or it can form a ring laser through diffraction devices such as a ring grating; no further limitations are made here. The reflective module 4 is a conical reflector that can form a relatively continuous circular ring of reflected light, making the laser energy irradiated on the inner wall of the cavity more uniform and improving the treatment effect. The cone apex angle of the conical reflector is preferred. Of course, in other embodiments, it can also be other angles. By adjusting the angle of the ring laser, it can be ensured that the reflected laser is emitted perpendicularly to the light-transmitting groove 11. It is understood that in other embodiments, the reflective module 4 can also use multiple reflectors to form a cone. The more inclined surfaces of the conical polyhedral reflector, the better. The more inclined surfaces, the smaller the discontinuity in the middle of the reflected ring, the closer it is to a circle, and the better the treatment effect. A transparent shield 12 is provided inside the light-transmitting groove 11, which can protect the laser generating module 2, the ring light generating module 3 and the reflective module 4 inside the inner shell 1 from the influence of the liquid environment inside the cavity. The transparent shield 12 can be made of transparent plastic or glass, etc., without further limitation.

[0033] The laser treatment head 100 proposed in this application includes a shell 1, a laser generating module 2, a ring light generating module 3, and a reflection module 4. The laser generating module 2, the ring light generating module 3, and the reflection module 4 are all disposed within the receiving cavity of the shell 1. A light-transmitting groove 11 is formed at one end of the shell 1, and a transparent protective cover is provided on the light-transmitting groove 11 to prevent internal contamination. The first laser emitted by the laser generating module 2 is converted into ring light by the ring light generating module 3, and then reflected by the reflection module 4 before exiting from the transparent protective cover on the light-transmitting groove 11 onto the inner wall of the cavity to be treated, thus treating the cavity wall 15. The ring laser, after being reflected by the reflection module 4, maintains its ring shape, allowing simultaneous treatment of the ring-shaped area of ​​the cavity wall without rotating the output head, thereby improving the treatment efficiency of laser treatment within the cavity. Furthermore, the simultaneous irradiation of the ring laser onto the reflection module 4, with a uniform reflection angle, ensures that the energy density of the reflected ring-shaped treatment laser is the same throughout, enhancing the treatment effect of the laser treatment head 100.

[0034] In one embodiment of this application, for the same set of laser treatment heads 100, there are multiple reflective modules 4, one of which is detachably connected to the cavity wall 15 of the receiving cavity, and the cone apex angle of the reflective surface 41 of any two reflective modules 4 is different.

[0035] In this embodiment, the reflective module 4 is detachably connected to the cavity wall 15 of the receiving cavity, which can be achieved through snap-fit ​​or plug-in connection. A laser treatment head 100 can be configured with multiple reflective modules 4 with different cone angles. Depending on the treatment area or scenario, reflective modules 4 with different cone angles can be replaced, thus adjusting the angle at which the laser beam strikes the inner wall surface of the cavity. This achieves better treatment results in cases where the inner wall of the cavity has wrinkles or angles. It is understood that in actual treatment, only one reflective module 4 is installed within the laser treatment head 100.

[0036] In one embodiment of this application, the reflection module 4 is a conical reflector.

[0037] In this embodiment, the reflection module 4 is a conical reflector. The treatment ring formed by the reflection from the conical reflector is more uniform and continuous, forming a complete ring. The energy wave intensity is the same throughout the treatment ring, enabling uniform laser treatment within the cavity wall 15 and improving the treatment efficiency of the laser treatment head 100. This avoids the uncertainty of beam reflection caused by the edges between adjacent sides of the pyramid.

[0038] In one embodiment of this application, the ring light generating module 3 includes an X-mirror and a Y-mirror, which are spaced apart in the receiving cavity. By rapidly adjusting the X-mirror and the Y-mirror, a ring laser is generated.

[0039] Alternatively, the ring light generating module 3 is a conical lens, and the first laser is refracted through the conical lens to generate a ring laser;

[0040] Alternatively, the ring light generating module 3 is a ring grating, which is disposed perpendicular to the optical path in the cavity, and the first laser is generated by diffraction through the ring grating to form a ring laser.

[0041] In this embodiment, the ring light generating module 3 can form a ring light spot by rapidly adjusting the X-mirror and Y-mirror to achieve rapid movement of a single-point light spot, or it can form a ring Bessel beam by refraction through a conical lens, or it can form a ring beam through diffraction devices such as a ring grating. As long as it can convert a single-point light spot into a ring light spot, no further limitation is made here.

[0042] It is understood that, in one embodiment of this application, by controlling the switch of the laser generating module 2, combined with the X-mirror and the Y-mirror, the specific shape of the ring beam can be controlled, so that when the reflecting module 4 is a pyramid, the beam is emitted away from the side edges of the pyramid, avoiding the uncertainty of the beam being reflected by the edges.

[0043] In one embodiment of this application, the laser treatment head 100 further includes a spot shaping module 5, which is disposed in the receiving cavity and located between the laser generating module 2 and the reflection module 4, and is used to adjust the spot size and divergence angle of the laser.

[0044] In this embodiment, the laser treatment head 100 is provided with a spot shaping module 5 for adjusting the spot size and divergence angle of the laser. It is set in the optical path of laser propagation. By adjusting the spot size and divergence angle of the laser, the energy density and coverage of the spot during treatment can be adjusted, thereby improving the versatility and ease of use of the laser treatment head 100 and enabling it to cope with treatment situations in different scenarios.

[0045] In one embodiment of this application, the spot shaping module 5 includes a lens and a mounting frame. The mounting frame is movably connected to the cavity wall 15 of the housing 1. The lens is mounted on the mounting frame. The spot size and divergence angle of the laser can be adjusted by adjusting the distance between the mounting frame and the laser generating module 2.

[0046] In this embodiment, the laser spot shaping module 5 includes a lens and a mounting bracket. The mounting bracket is movably mounted on the cavity wall 15 of the outer shell 1 and its position can be adjusted. It can be snapped or plugged into the outer shell 1. The lens is mounted on the mounting bracket. By adjusting the position of the mounting bracket, the distance between the lens and the laser generating module 2 can be adjusted, thereby adjusting the laser spot size and divergence angle. Furthermore, by replacing lenses with different focal lengths, the laser spot size and divergence angle can be adjusted, thereby regulating the energy density and coverage area during laser treatment. This improves the versatility and ease of use of the laser treatment head 100, enabling it to handle treatment situations in different scenarios.

[0047] In one embodiment of this application, the laser treatment head 100 includes a first spot shaping module 5 disposed between the laser generating module 2 and the ring light generating module 3, and a second spot shaping module 5 disposed between the ring light generating module 3 and the reflection module 4.

[0048] In this embodiment, a first spot shaping module 5 is provided between the laser generating module 2 and the ring light generating module 3, which can adjust the spot size and divergence angle of the first laser. A second spot shaping module 5 is provided between the ring light generating module 3 and the reflection module 4, which can adjust the spot size and divergence angle of the ring laser. The two spot shaping modules 5 work together to adjust the energy density and coverage of the spot during treatment over a wider range, further improving the versatility and ease of use of the laser treatment head 100 and enabling it to cope with treatment situations in more different scenarios.

[0049] In one embodiment of this application, the laser treatment head 100 further includes a sensor module, which includes a plurality of image sensing units. One image sensing unit is located at the center of one end face of the outer shell 1 near the light-transmitting groove 11, and at least some of the image sensing units are evenly spaced and arranged in a ring around the cavity wall 15 of the receiving cavity.

[0050] In this embodiment, the sensor module includes several image sensing units, including three or more miniature wide-angle camera image sensing units surrounding the bottom of the reflective module 4 and a bottom center front-view image sensing unit. These units can form a set of real-time front-view and surround-view images of the cavity interior through corresponding coordinate positions, helping the operator locate the current position of the laser treatment head 100, thereby improving treatment effectiveness and efficiency. It is understood that in other embodiments, the sensor module can also be an ultrasound imaging device, used to form a set of real-time front-view and surround-view ultrasound images of the cavity interior, helping the operator locate the current position of the laser treatment head 100, thereby improving treatment effectiveness and efficiency.

[0051] In one embodiment of this application, the outer shell 1 is provided with a negative pressure channel 14. The negative pressure channel 14 extends along the length direction of the outer shell 1 and is arranged around the circumferential direction of the outer shell 1. One opening of the negative pressure channel 14 is connected to the light-transmitting groove 11, and the other opening is connected to a negative pressure generating device to adsorb volatiles during the treatment process.

[0052] In this embodiment, a negative pressure channel 14 is provided inside the outer shell 1. The length direction of the negative pressure channel 14 is the same as the length direction of the outer shell 1, and it surrounds the circumferential direction of the outer shell 1, resulting in a larger adsorption area. Volatile substances generated at any position within the cavity can be absorbed through the negative pressure channel 14. One opening of the negative pressure channel 14 is connected to the light-transmitting groove 11, and the other opening is connected to a negative pressure generating device, such as a negative pressure pump. The negative pressure channel 14 is opened parallel to the axial direction of the laser treatment head 100. The negative pressure channel 14 and the negative pressure generating device can quickly absorb volatile substances during the treatment process, preventing volatile substances from depositing in the cavity and causing secondary pollution, thus improving the hygiene of the laser treatment head 100 during laser treatment. In particular, the light outlet of this application is located in the transparent cover within the light-transmitting groove 11. The inwardly recessed structure of the transparent cover, combined with the connection between the negative pressure channel 14 and the light-transmitting groove 11, allows volatile substances to be drawn away before they reach the transparent cover.

[0053] In one example, the outer peripheral wall of the housing 1 is provided with several scale lines and / or direction marks. The scale lines are evenly distributed along the length of the housing 1. The direction marks can help the operator quickly confirm the front and back direction of the image. The scale lines can help the operator quickly and accurately locate the laser treatment head 100 and the corresponding position of the camera image, providing reference and assistance for subsequent treatment.

[0054] This application also proposes a laser therapy device, including the laser therapy head 100 as described above.

[0055] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A laser treatment head, wherein, The laser treatment head includes: The outer shell has a receiving cavity, and a light-transmitting groove communicating with the receiving cavity is formed on the outer peripheral wall of one end of the outer shell. The light-transmitting groove extends along the circumference of the outer shell, and a transparent protective cover is provided inside the light-transmitting groove. A laser generating module is disposed at the end of the receiving cavity away from the light-transmitting groove, and the laser generating module is used to emit a first laser. A ring-shaped light generating module, disposed in the receiving cavity and located between the laser generating module and the light-transmitting groove, is used to convert the first laser emitted by the laser generating module into a ring-shaped laser; and A reflective module, which is conical or truncated conical, has a reflective surface on its periphery, which faces the light-transmitting groove, and is used to reflect the ring laser and emit it outward through the light-transmitting groove.

2. The laser treatment head as described in claim 1, wherein, The number of the reflective modules is multiple, one of which is detachably connected to the cavity wall of the receiving cavity, and the cone apex angle of the reflective surface of any two reflective modules is different.

3. The laser treatment head as described in claim 1, wherein, The reflection module is a conical reflector.

4. The laser treatment head as described in claim 1, wherein, The ring light generating module includes an X-mirror and a Y-mirror, which are spaced apart within the receiving cavity. The ring laser is generated by rapidly adjusting the X-mirror and the Y-mirror. Alternatively, the ring light generating module is a conical lens, and the first laser is refracted by the conical lens to generate the ring laser; Alternatively, the ring light generating module is a ring grating, which is disposed perpendicular to the optical path in the receiving cavity, and the first laser is generated by diffraction through the ring grating.

5. The laser treatment head as described in claim 1, wherein, The laser treatment head also includes a spot shaping module, which is located in the receiving cavity between the laser generating module and the reflection module, and is used to adjust the laser spot size and divergence angle.

6. The laser treatment head as described in claim 5, wherein, The laser spot shaping module includes a lens and a mounting frame. The mounting frame is movably connected to the cavity wall of the housing. The lens is mounted on the mounting frame. The laser spot size and divergence angle can be adjusted by adjusting the distance between the mounting frame and the laser generating module.

7. The laser treatment head as described in claim 6, wherein, The laser treatment head includes a first spot shaping module disposed between the laser generating module and the ring light generating module, and a second spot shaping module disposed between the ring light generating module and the reflection module.

8. The laser treatment head as described in any one of claims 1 to 7, wherein, The laser treatment head also includes a sensor module, which includes several image sensing units. One of the image sensing units is located on the end face of the outer shell near the light-transmitting groove, and at least some of the image sensing units are evenly spaced and arranged around the cavity wall of the receiving cavity.

9. The laser treatment head according to any one of claims 1 to 7, wherein, The outer shell has a negative pressure channel that extends along the length of the outer shell and is arranged around the circumference of the outer shell. One opening of the negative pressure channel is connected to the light-transmitting groove, and the other opening is connected to a negative pressure generating device to adsorb volatiles during the treatment process.

10. A laser therapy device, wherein, The laser therapy device includes a laser therapy head as described in any one of claims 1 to 9.

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