Laser emission device with adjustable laser emission energy

Abstract

The utility model provides a laser emission device with adjustable laser emission energy, which comprises a first lens assembly, the first lens assembly comprises a plurality of coupling lenses with different specifications and a rotating mechanism, the rotating mechanism comprises a mounting turntable, a fixing plate and a first driving motor, the mounting turntable comprises a disc body and a flange positioned in the center of the disc body, and the fixing plate is fixedly connected with the first driving motor. The disc body can rotate around the flange, a plurality of through mounting holes are formed in the disc body at intervals in the circumferential direction, the mounting holes are used for mounting a plurality of coupling lenses of different specifications respectively, the mounting rotary disc is movably mounted on the fixing plate through the flange, and the first driving motor can drive the disc body to rotate around the flange; therefore, the plurality of coupling lenses with different specifications are respectively rotated to receive the initial laser beam emitted by the laser. The laser emission device provided by the utility model can automatically adjust the target coupling lens to couple the initial laser beam output from the laser, and automatically adjust the distance between the target coupling lens and the laser, thereby realizing automatic adjustment of laser emission energy.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a laser emitting device with adjustable laser emitting energy. Background Art

[0002] Laser ablation is a procedure in which the laser emitted by a laser ablation device is irradiated on the lesion area in the blood vessel that needs to be ablated. The thermal effect or shock wave generated by the laser is used to crush stones, cut soft tissue, or thermally coagulate and denature it, thereby achieving the purpose of breaking up plaques and unblocking blood vessels.

[0003] Different laser emission energies are usually required for different lesion types and degrees. The laser beam output from the laser is coupled through a coupling lens and reaches the reflector assembly. The laser reflected by the reflector assembly can be used for ablation surgery. By replacing the coupling lens and adjusting the distance between the coupling lens and the laser, the spot size can be adjusted, thereby adjusting the laser emission energy.

[0004] The existing technology usually selects a fixed coupling lens according to the laser type to shape the initial laser beam emitted by it. However, when replacing the laser, it is difficult to flexibly replace the corresponding coupling lens, and it is difficult to adjust the spot size during the laser emission process. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a laser emitting device with adjustable spot size.

[0006] The purpose of the present utility model is to provide a laser emitting device with adjustable laser emission energy, comprising a first lens assembly, the first lens assembly comprising a plurality of coupling lenses of different specifications, and a rotating mechanism, the rotating mechanism comprising a mounting turntable, a fixed plate and a first drive motor, the mounting turntable comprising a disk body and a flange located at the center of the disk body, the disk body being rotatable around the flange, the disk body being provided with a plurality of mounting holes arranged at intervals along the circumference and passing through, the plurality of mounting holes being respectively used to mount the plurality of coupling lenses of different specifications, the mounting turntable being movably mounted on the fixed plate via the flange, the first drive motor being able to drive the disk body to rotate around the flange, thereby causing the plurality of coupling lenses of different specifications to respectively rotate to receive the initial laser beam emitted by the laser.

[0007] Furthermore, the first lens assembly also includes a moving mechanism, which includes a slide, a slide rail, a screw and a second drive motor. The rotating mechanism is mounted on the slide through the fixed plate, and the slide can move back and forth along the slide rail; the extension direction of the slide rail is parallel to the irradiation direction of the initial laser beam; the screw is connected to the slide; the second drive motor can drive the screw to drive the slide to move along the slide rail, thereby driving the rotating mechanism to approach or move away from the laser.

[0008] Furthermore, the laser emitting device also includes a laser and a reflector assembly, the laser is used to emit an initial laser beam; multiple coupling lenses of different specifications on the first lens assembly can be rotated to receive the initial laser beam and output a coupled laser beam respectively; the reflector assembly outputs a therapeutic laser beam after receiving the coupled laser beam.

[0009] Furthermore, the laser emitting device also includes a mounting platform, and the laser, the first lens assembly and the reflector assembly are fixedly mounted on the mounting platform.

[0010] Furthermore, the radial dimension of the mounting hole is slightly larger than the radial dimension of the coupling lens, and one end of the mounting hole has a flange extending inward; the mounting turntable also includes an elastic resistance member, and after the coupling lens is installed in the mounting hole from the end opposite to the end where the flange is located, the elastic resistance member is arranged in the mounting hole, and the elastic resistance member resists against the side wall of the mounting hole along the radial direction of the mounting turntable and resists against the coupling lens along the axial direction, so that the coupling lens is fixed in the mounting hole.

[0011] Furthermore, the elastic resistance member is a ring-shaped structure with a notch and is made of a metal material with elastic deformation capability.

[0012] Furthermore, a positioning device is provided on the mounting turntable, a position sensor for collecting the position of the positioning device is provided on the fixing plate, and the positioning device is made of magnetic material.

[0013] Furthermore, the moving mechanism further includes a mounting seat, the slide rail is fixed on the mounting seat, and the first lens assembly is fixed on the mounting platform via the mounting seat.

[0014] Furthermore, the laser emitting device also includes a processor, which is connected to the laser and the first drive motor. The processor is used to collect parameters of the laser and match a target coupling lens from multiple coupling lenses of different specifications according to the parameters of the laser; the processor can control the first drive motor to drive the mounting turntable to rotate until the target coupling lens receives the initial laser beam.

[0015] Furthermore, the processor is also connected to the second driving motor, and the processor can control the second driving motor to adjust the distance between the target coupling lens and the laser.

[0016] The laser emitting device provided by the utility model can match a suitable target coupling lens according to the specifications of the laser, and automatically adjust the target coupling lens to couple the initial laser beam output from the laser. At the same time, it can automatically adjust the distance between the target coupling lens and the laser to achieve automatic adjustment of the laser emission energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the laser emitting device in the first embodiment of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the lens assembly in the first embodiment of the present invention.

[0020] Figure 3 This is a schematic structural diagram of the lens assembly in the first embodiment of the present invention.

[0021] Figure 4 This is a schematic structural diagram of the laser emitting device in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides a laser emitting device, which can match a suitable target coupling lens according to the specifications of the laser, and automatically adjust the target coupling lens to couple the initial laser beam output from the laser. At the same time, the distance between the target coupling lens and the laser can be automatically adjusted, thereby automatically adjusting the laser emission energy.

[0024] refer to Figures 1 to 3The first embodiment of the present invention provides a laser emitting device, including a laser 100, a first lens assembly 200 and a reflector assembly 300. The laser 100 is used to emit an initial laser beam 10; the first lens assembly 200 includes a plurality of coupling lenses 210 of different specifications. The plurality of coupling lenses 210 of different specifications can be moved to a position to receive the initial laser beam 110, couple the initial laser beam 110, and output a coupled laser beam 20; the reflector assembly 300 is used to receive and reflect the coupled laser beam 20 and output a therapeutic laser beam 30.

[0025] In this embodiment, the laser emitting device further includes a mounting platform 400, and the laser 100, the first lens assembly 200, and the reflector assembly 300 are all fixed on the mounting platform 400. This solution enables the laser emitting device to form an integral structure, thereby improving the stability of the device.

[0026] Specifically, the first lens assembly 200 also includes a rotating mechanism 220, which includes a mounting turntable 221, a fixed plate 222 and a first drive motor 223. The mounting turntable 221 includes a disk body 221a and a flange 221b located at the center of the disk body. The disk body 221a can rotate around the flange 221b. The disk body 221a is provided with a plurality of mounting holes 221c that are arranged and penetrated along the circumferential direction. The plurality of mounting holes 221c are respectively used to install a plurality of coupling lenses 210 of different specifications. The mounting turntable 221 is movably mounted on the fixed plate 222 through the flange 221b. The first drive motor 223 can drive the disk body 221a to rotate around the flange 221b, thereby changing the position of the coupling lens.

[0027] It should be noted that, in the laser emitting device provided in this embodiment, the radial surface of the mounting turntable 221 is perpendicular to the irradiation direction of the initial laser beam 10, and the mounting turntable 221 has a laser receiving position facing the initial laser beam 10. By rotating the mounting turntable 221, multiple coupling lenses 210 of different specifications mounted on the mounting turntable 221 can be rotated to the laser receiving position in sequence.

[0028] This solution can flexibly replace the coupling lens that receives the initial laser beam, thereby quickly and conveniently adjusting the laser emission energy.

[0029] Furthermore, the radial dimension of the mounting hole 221c is slightly larger than the radial dimension of the coupling lens 210, and one end of the mounting hole 221c has a flange extending inward. The mounting turntable 221 also includes an elastic resistance member 221d. After the coupling lens 210 is installed in the mounting hole 221c from the end opposite to the end where the flange is located, the elastic resistance member 221d is arranged in the mounting hole 221c. The elastic resistance member 221d resists the side wall of the mounting hole 221c along the radial direction of the mounting turntable 221, and resists the coupling lens 210 along the axial direction, thereby fixing the coupling lens 210 in the mounting hole 221c.

[0030] In this embodiment, the elastic resisting member 221d is a ring-shaped structure with a notch and is made of a metal material with elastic deformation capability. The elastic resisting member 221d provided in this solution will not affect the coupling of the coupling lens 210 to the initial laser beam 10.

[0031] Furthermore, a positioning device 221 e is provided on the mounting turntable 221 , and a position sensor 224 for collecting the position of the positioning device 221 e is provided on the fixing plate 222 .

[0032] The positioning device 221e may be made of a magnetic material.

[0033] The positioning device 221e is sensed by the position sensor 224, so that the rotational position of the mounting plate 221 along the circumferential direction can be determined, and the target coupling lens can be adjusted to the laser receiving position.

[0034] In one embodiment of the present invention, the rotating mechanism can be directly fixed on the mounting platform via a fixing plate, thereby achieving assembly of the device.

[0035] In this embodiment, the first lens assembly 200 also includes a moving mechanism 230; the moving mechanism 230 includes a slide 231, a slide rail 232, a screw 233 and a second drive motor 234, the rotating mechanism 220 is installed on the slide 231 through a fixed plate 222, and the slide 231 can move back and forth along the slide rail 232; the extension direction of the slide rail 232 is parallel to the irradiation direction of the initial laser beam 10; the screw 233 is connected to the slide 231; the second drive motor 234 can drive the screw 233 to drive the slide 231 to move along the slide rail 232, thereby driving the rotating mechanism 220 to move toward or away from the laser 100.

[0036] In this embodiment, the distance between the coupling lens 210 and the laser 100 can be adjusted by the moving mechanism 230 , thereby further adjusting the laser emission energy.

[0037] The first lens assembly 200 further includes a mounting seat 240 . In this embodiment, the slide rail 232 is disposed on the mounting seat 240 .

[0038] The first lens assembly 200 is mounted on the mounting platform 400 via the mounting seat 240 .

[0039] Furthermore, the laser emitting device also includes a processor (not shown in the figure), which is connected to the laser 100, the position sensor 224, the first drive motor 223 and the second drive motor 234. The processor can collect parameters of the laser 100 to match the target coupling lens; by controlling the first drive motor 223 to drive the mounting turntable 221 to rotate, the target coupling lens is placed in the laser receiving position; and then the second drive motor 234 is controlled according to demand to adjust the distance between the target coupling lens and the laser 100; the processor can also collect information from the position sensor 224 to determine the position of the target coupling lens.

[0040] It should be noted that, depending on different treatment requirements, multiple lens assemblies may be required, and multiple coupling lenses may be used to couple the initial laser beam 10. The present invention can set multiple lens assemblies on the mounting platform 400 according to specific requirements.

[0041] refer to Figure 4 The second embodiment of the present invention provides another laser emitting device, which differs from the first embodiment only in that the laser emitting device in this embodiment includes two groups of lens assemblies: a first lens assembly 200 and a second lens assembly 200', wherein the second lens assembly 200' has the same structure as the first lens assembly 200, which will not be repeated here.

[0042] In this embodiment, the slide rails of the first lens assembly 200 and the slide rails of the second lens assembly 200 ′ are parallel to the irradiation direction of the initial laser beam 10 , and the laser receiving position of the first lens assembly 200 is between the laser and the laser receiving position of the second lens assembly 200 ′.

[0043] The laser emits an initial laser beam 10; the target coupling lens of the first lens assembly 200 is adjusted to its laser receiving position to couple the initial laser beam 10 and output a first coupled laser beam 21; the target coupling lens of the second lens assembly 200' is adjusted to its laser receiving position to couple the first coupled laser beam 21 and output a second coupled laser beam 22; the reflector assembly receives the second coupled laser beam 22 and outputs a therapeutic laser beam 30.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser emitting device with adjustable laser emission energy, characterized in that: It includes a first lens assembly, which includes a plurality of coupling lenses of different specifications, and a rotating mechanism. The rotating mechanism includes a mounting turntable, a fixed plate and a first drive motor. The mounting turntable includes a disk body and a flange located at the center of the disk body. The disk body can rotate around the flange. The disk body is provided with a plurality of mounting holes that are arranged at intervals along the circumference and pass through. The plurality of mounting holes are respectively used to install the plurality of coupling lenses of different specifications. The mounting turntable is movably mounted on the fixed plate through the flange. The first drive motor can drive the disk body to rotate around the flange, so that the plurality of coupling lenses of different specifications are respectively rotated to receive the initial laser beam emitted by the laser.

2. The laser emitting device with adjustable laser emission energy according to claim 1, characterized in that: The first lens assembly also includes a moving mechanism, which includes a slide, a slide rail, a screw and a second drive motor. The rotating mechanism is mounted on the slide through the fixed plate, and the slide can move back and forth along the slide rail; the extension direction of the slide rail is parallel to the irradiation direction of the initial laser beam; the screw is connected to the slide; the second drive motor can drive the screw to drive the slide to move along the slide rail, thereby driving the rotating mechanism to approach or move away from the laser.

3. The laser emitting device with adjustable laser emission energy according to claim 2, characterized in that: The laser emitting device also includes a laser and a reflector assembly, wherein the laser is used to emit an initial laser beam; multiple coupling lenses of different specifications on the first lens assembly can be rotated to receive the initial laser beam and output coupled laser beams respectively; the reflector assembly outputs a therapeutic laser beam after receiving the coupled laser beam.

4. The laser emitting device with adjustable laser emission energy according to claim 3, characterized in that: The laser emitting device further comprises a mounting platform, on which the laser, the first lens assembly and the reflector assembly are fixedly mounted.

5. The laser emitting device with adjustable laser emission energy according to claim 1, characterized in that: The radial dimension of the mounting hole is slightly larger than the radial dimension of the coupling lens, and one end of the mounting hole has a flange extending inward; the mounting turntable also includes an elastic resistance member, and after the coupling lens is installed in the mounting hole from the end opposite to the end where the flange is located, the elastic resistance member is arranged in the mounting hole, and the elastic resistance member resists against the side wall of the mounting hole along the radial direction of the mounting turntable and resists against the coupling lens along the axial direction, so that the coupling lens is fixed in the mounting hole.

6. The laser emitting device with adjustable laser emission energy according to claim 5, characterized in that: The elastic resisting member is a ring-shaped structure with a notch and is made of a metal material with elastic deformation capability.

7. The laser emitting device with adjustable laser emission energy according to claim 1, characterized in that: A positioning device is provided on the mounting turntable, and a position sensor for collecting the position of the positioning device is provided on the fixing plate. The positioning device is made of magnetic material.

8. The laser emitting device with adjustable laser emission energy according to claim 4, characterized in that: The moving mechanism further comprises a mounting seat, the slide rail is fixed on the mounting seat, and the first lens assembly is fixed on the mounting platform via the mounting seat.

9. The laser emitting device with adjustable laser emission energy according to claim 2, characterized in that: The laser emitting device also includes a processor, which is connected to the laser and the first drive motor. The processor is used to collect parameters of the laser and match a target coupling lens from a plurality of coupling lenses of different specifications according to the parameters of the laser; the processor can control the first drive motor to drive the mounting turntable to rotate until the target coupling lens receives the initial laser beam.

10. The laser emitting device with adjustable laser emission energy according to claim 9, characterized in that: The processor is further connected to the second driving motor, and the processor can control the second driving motor to adjust the distance between the target coupling lens and the laser.

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