Laser cutting device and laser cutting method

Abstract

The present invention provides a laser cutting device and a laser cutting method. The laser cutting device includes: at least two laser generating structures, both used to emit lasers; a working tip, including a working tip body and at least two first optical fibers arranged on the working tip body, the at least two first optical fibers are matched with the at least two laser generating structures in a one-to-one correspondence, the first optical fibers are used to transmit lasers, and the emission ends of the at least two first optical fibers are both located on the same side of the working tip body and are arranged in sequence and spaced apart. In the technical solution of the present invention, the cutting efficiency can be improved by the laser cutting device.

Description

Technical Field

[0001] The present invention relates to the field of laser treatment technology, and in particular to a laser cutting device and a laser cutting method. Background Art

[0002] Currently, the cutting working tip of laser therapy devices on the market is single, that is, there is one optical fiber outputting laser from the laser emitter to the working tip. When cutting soft tissue, in many cases it is necessary to cut along an irregular incision trajectory. At this time, if an ordinary single optical fiber working tip is used for cutting, it is necessary to first draw the cutting trajectory and then perform laser cutting along the trajectory, which results in low cutting efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide a laser cutting device and a laser cutting method, which can improve cutting efficiency.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a laser cutting device, comprising: at least two laser generating structures, both used for emitting lasers; a working tip, comprising a working tip body and at least two first optical fibers arranged on the working tip body, the at least two first optical fibers being matched with the at least two laser generating structures in a one-to-one correspondence, the first optical fibers being used for transmitting lasers, and the emission ends of the at least two first optical fibers are both located on the same side of the working tip body and are arranged in sequence and spaced apart.

[0005] Furthermore, the number of the first optical fibers is at least three, and the output ends of the at least three first optical fibers are evenly spaced apart in sequence.

[0006] Furthermore, the working tip body includes: a working tip head having a working end and a connecting end that are relatively arranged; a working tip handle connected to the connecting end; wherein the shape of the working end of the working tip head is adjustable; and the output ends of at least two first optical fibers are both connected to the working end and change with the change of the shape of the working end.

[0007] Further, the working tip portion is made of shape memory alloy or aluminum foil; and / or the working tip portion is a sheet structure.

[0008] Furthermore, at least two first mounting holes are provided on the working tip, and the at least two first mounting holes are arranged in one-to-one correspondence with at least two first optical fibers, and the first optical fibers are installed in the first mounting holes, and the first mounting holes pass through the working end.

[0009] Furthermore, the laser cutting device also includes a laser transmission structure for transmitting laser, the laser transmission structure includes a handle and at least two second optical fibers arranged on the handle; the at least two second optical fibers are matched with at least two laser generating structures in a one-to-one correspondence to transmit the laser; the working tip body is connected to the handle, and at least two first optical fibers are arranged in a one-to-one correspondence with at least two second optical fibers and are connected or contacted; and / or, at least two laser generating structures are independently controlled from each other.

[0010] According to another aspect of the present invention, a laser cutting method is provided, wherein the laser cutting device described above is used for cutting, wherein the laser cutting method comprises: controlling at least two laser generating structures to simultaneously emit lasers to the corresponding first optical fibers to cut the position to be cut.

[0011] Furthermore, at least two laser generating structures are controlled to emit lasers to the corresponding first optical fibers at the same time, and the step of cutting the position to be cut includes: obtaining the cutting depth of the position to be cut corresponding to each first optical fiber; determining the laser power required for the first optical fiber corresponding to the position to be cut according to the obtained cutting depth information; determining the correspondence between the first optical fiber and the laser generating structure; and adjusting the laser power of the laser generating structure corresponding to the first optical fiber according to the laser power required for the first optical fiber.

[0012] Furthermore, before the step of obtaining the cutting depth of the position to be cut corresponding to each first optical fiber, the laser cutting method also includes: determining the cutting trajectory of the position to be cut; adjusting the shape of the output end of each first optical fiber according to the cutting trajectory of the position to be cut, so that the cutting trajectory formed by the output end of each first optical fiber is consistent with the determined cutting trajectory.

[0013] Furthermore, the step of adjusting the shape of the output end of each first optical fiber according to the cutting trajectory of the position to be cut includes: adjusting the shape of the working end of the working tip head according to the cutting trajectory of the position to be cut, so that the shape of the working end of the working tip head is consistent with the determined cutting trajectory; keeping the shape of the working end of the working tip head in the current state, and using the working end of the working tip head to shape the cutting trajectory formed by the output end of each first optical fiber.

[0014] By applying the technical solution of the present invention, at least two laser generating structures are used to emit lasers, at least two first optical fibers are used to transmit lasers, and the working tip is placed at the position to be cut. The laser transmitted by the first optical fiber can cut the position to be cut, thereby realizing the cutting function of the laser cutting device. The output ends of at least two first optical fibers are located on the same side of the working tip body and are arranged in sequence at intervals. In this way, the output ends of at least two first optical fibers can emit lasers at the same time and are both used for cutting, so that the laser cutting device has a larger cutting range at one time. In the technical solution of the present application, at least two first optical fibers can emit lasers at the same time to cut within a larger range, which can improve the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic structural diagram of an embodiment of a laser cutting device according to the present invention is shown;

[0017] Figure 2 Shows Figure 1 A partially exploded structural schematic diagram of a laser cutting device;

[0018] Figure 3 Shows Figure 1 An angled side view of a laser cutting device;

[0019] Figure 4 Shows Figure 1 A side view of the laser cutting device from another angle;

[0020] Figure 5 Shows Figure 1 A schematic diagram of the structure of the working tip of the laser cutting device;

[0021] Figure 6 Shows Figure 5 Left view of the working tip;

[0022] Figure 7 Shows Figure 5 A schematic diagram of the structure after the shape of the working tip head of the working tip is changed;

[0023] Figure 8 Shows Figure 7 Left side view of the working tip; and

[0024] Fig. 9 A flow chart showing an embodiment of the laser cutting method according to the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 10. Laser generating structure; 20. Working tip; 21. Working tip body; 22. Working tip head; 221. Working end; 222. Connecting end; 23. Working tip handle; 24. Limiting member; 30. Laser transmission structure; 31. Handle; 32. Optical fiber pigtail. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0030] The cutting working tip of the semiconductor laser therapy device currently on the market is single, that is, the laser is output from the laser emitter to the working tip in the form of a single optical fiber. When cutting soft tissue, in many cases it is necessary to cut along an irregular incision trajectory. At this time, if an ordinary single optical fiber working tip is used for cutting, it is necessary to first draw the cutting trajectory and then perform laser cutting along the trajectory. This results in low cutting efficiency, inaccurate cutting trajectory, and uncontrollable cutting depth.

[0031] In order to solve the above problems, the present invention and its embodiments provide a laser cutting device and a laser cutting method.

[0032] like Figures 1 to 5 as well as Figure 7 As shown, in an embodiment of the present invention, the laser cutting device includes a working tip 20 and at least two laser generating structures 10, and the at least two laser generating structures 10 are used to emit lasers; the working tip 20 includes a working tip body 21 and at least two first optical fibers arranged on the working tip body 21, and the at least two first optical fibers are matched with the at least two laser generating structures 10 in a one-to-one manner, and the first optical fibers are used to transmit lasers, and the output ends of the at least two first optical fibers are located on the same side of the working tip body 21 and are arranged in sequence.

[0033] In the above arrangement, at least two laser generating structures 10 are used to emit lasers, and at least two first optical fibers are used to transmit lasers. The working tip 20 is placed at the position to be cut, and the laser transmitted by the first optical fiber can cut the position to be cut, thereby realizing the cutting function of the laser cutting device. The working tip body 21 is used to install and support the first optical fiber. The output ends of at least two first optical fibers are located on the same side of the working tip body 21 and are arranged in sequence at intervals. In this way, the output ends of at least two first optical fibers can emit lasers at the same time and are both used for cutting, so that the laser cutting device has a larger cutting range at one time. Compared with the technology of using a single optical fiber for cutting, which has a lower cutting efficiency, in the technical solution of the present application, at least two first optical fibers can emit lasers at the same time to cut in a larger range, which can improve the cutting efficiency.

[0034] Preferably, the laser generating structure 10 is a laser.

[0035] In an embodiment of the present invention, the number of the first optical fibers is at least three, and the emission ends of the at least three first optical fibers are arranged in sequence and evenly spaced apart.

[0036] Through the above arrangement, the lasers emitted by at least three first optical fibers can be evenly distributed, so that the lasers can effectively cover the position to be cut and perform effective cutting, avoiding situations such as insufficient cutting, unsatisfactory cutting effect or over-cutting, and ensuring the cutting effect.

[0037] like Figures 5 to 8 As shown, in an embodiment of the present invention, the working tip body 21 includes a working tip head 22 and a working tip handle 23, the working tip head 22 has a working end 221 and a connecting end 222 that are relatively arranged; the working tip handle 23 is connected to the connecting end 222; wherein, the shape of the working end 221 of the working tip head 22 is adjustable; the output ends of at least two first optical fibers are connected to the working end 221 and change with the change of the shape of the working end 221.

[0038] In the above arrangement, since the output ends of at least two first optical fibers are connected to the working end 221, when the shape of the working end 221 changes, the positions of the output ends of each first optical fiber will change, so that the shape of the line between the output ends of each first optical fiber changes with the change of the shape of the working end 221, and finally the distribution form of the output ends of each first optical fiber is adapted to the shape of the cutting track at the position to be cut. In this way, when lasers are emitted simultaneously by at least two first optical fibers, the shape of the cutting track formed by at least two laser beams is adapted to the shape of the cutting track at the position to be cut.

[0039] In addition, in the embodiment of the present invention, the working tip shank 23 is connected to the connecting end 222 to achieve the purpose of connecting the working tip shank 23 to the working tip head 22 , and the working tip shank 23 is used to install and manufacture the working tip head 22 .

[0040] like Figures 5 to 8 As shown, in the embodiment of the present invention, the shape of the working tip 22 is adjustable, and the shape of the working end 221 is adjusted by adjusting the shape of the working tip 22. The change in the shape of the working tip 22 drives the change in the shape of the working end 221, that is, the shape of the working tip 22 can be adjusted according to the shape of the cutting track of the position to be cut, so that the shape of the working end 221 is adapted to the shape of the cutting track of the position to be cut. In other words, the shape of the working tip 22 can be adjusted according to the shape of the cutting track of the actual position to be cut, thereby adjusting the shape of the working end 221, and finally making the shape of the cutting track formed by at least two laser beams emitted simultaneously by at least two first optical fibers adapt to the shape of the cutting track of the position to be cut, so that the position to be cut can be cut accurately and efficiently, and the adaptability is strong.

[0041] In the embodiment of the present invention, the working tip 22 is made of shape memory alloy or aluminum foil. Shape memory alloy has shape memory effect; aluminum foil is soft and ductile; under the action of external force, shape memory alloy and aluminum foil can deform and maintain a certain shape. The working tip 22 made of shape memory alloy or aluminum foil can adapt to the change of the shape of the cutting track at the position to be cut.

[0042] Preferably, the working tip 22 is made of nickel-titanium alloy.

[0043] like Figure 6 and Figure 8 As shown, in the embodiment of the present invention, the working tip portion 22 is a sheet-like structure. This arrangement has a simple structure and is convenient for adjusting the shape of the working tip portion 22.

[0044] Of course, in an alternative embodiment of the present application, the working tip 22 may include at least two tube structures according to actual needs, and the at least two tube structures are arranged one-to-one with the at least two first optical fibers, and the tube structures are sleeved on the outer periphery of the first optical fibers. The tube structures are made of shape memory alloy or aluminum foil. The at least two tube structures are arranged separately or in one piece.

[0045] In the embodiment of the present invention, at least two first mounting holes are provided on the working tip 22, and the at least two first mounting holes are arranged in one-to-one correspondence with at least two first optical fibers, and the first optical fibers are installed in the first mounting holes, and the first mounting holes penetrate the working end 221. The first mounting holes are used to install the first optical fibers.

[0046] like Figures 1 to 4As shown, in an embodiment of the present invention, the laser cutting device also includes a laser transmission structure 30 for transmitting laser, the laser transmission structure 30 includes a handle 31 and at least two second optical fibers arranged on the handle 31; the at least two second optical fibers are matched with at least two laser generating structures 10 in a one-to-one correspondence to transmit the laser; the working tip body 21 is connected to the handle 31, and the at least two first optical fibers are arranged in a one-to-one correspondence and contact with the at least two second optical fibers.

[0047] In the above arrangement, the laser transmission structure 30 is used to transmit the laser emitted by the laser generating structure 10 to the working tip 20. Specifically, the second optical fiber is used to transmit the laser emitted by the laser generating structure 10 to the first optical fiber. The handle 31 is used to install and support the second optical fiber. The working tip body 21 is connected to the handle 31, so that the first optical fiber and the second optical fiber are connected, so that the second optical fiber transmits the laser to the first optical fiber. At the same time, the operator can conveniently operate the working tip body 21 by grabbing and holding the handle 31.

[0048] like Figures 1 to 4 As shown, in the embodiment of the present invention, the second optical fiber is connected to the laser generating structure 10 through the optical fiber pigtail 32, and the laser emitted by the laser generating structure 10 is transmitted to the second optical fiber through the optical fiber pigtail 32. Of course, according to actual needs, the optical fiber pigtail 32 can be disconnected from the laser generating structure 10, as long as the laser emitted by the laser generating structure 10 can be transmitted to the incident end of the optical fiber pigtail 32.

[0049] Of course, in alternative embodiments of the present application, the first optical fiber can also be connected to the second optical fiber according to actual needs. Preferably, the first optical fiber is connected to the second optical fiber through an optical fiber pigtail.

[0050] like Figure 2 As shown, in the embodiment of the present invention, the working tip body 21 includes a working tip head 22 and a working tip handle 23 connected to each other, a second mounting hole is provided on the handle 31, and the working tip handle 23 is mounted in the second mounting hole.

[0051] In the above arrangement, the second mounting hole is used to mount the working tip handle 23 to achieve the connection between the working tip body 21 and the handle 31 .

[0052] Preferably, the working tip shank 23 is transitionally matched with the second mounting hole.

[0053] like Figure 5 and Figure 7 As shown, in the embodiment of the present invention, the working tip body 21 also includes a limiter 24, the working tip head 22, the limiter 24 and the working tip handle 23 are connected in sequence, and the limiter 24 is used to limit the extreme position of the working tip handle 23 moving into the second mounting hole.

[0054] In the above arrangement, the limiter 24 is used to limit the extreme position of the working tip handle 23 moving into the second mounting hole, preventing the working tip head 22 from entering the second mounting hole, avoiding the problem of inconvenience in adjusting the shape of the working tip head 22, and ensuring the effectiveness of the working tip head 22.

[0055] like Figure 5 and Figure 7 As shown, in an embodiment of the present invention, the limiting member 24 is a cylindrical structure, the working tip shank 23 is a cylindrical structure, and the outer diameter of the limiting member 24 is larger than the outer diameter of the working tip shank 23, the second mounting hole is a circular hole, and the outer diameter of the limiting member 24 is larger than the inner diameter of the second mounting hole, so that the limiting member 24 can limit the working tip shank 23.

[0056] In an embodiment of the present invention, at least two third mounting holes are provided on the limiting member 24, and at least two fourth mounting holes are provided on the working tip handle 23. The at least two first mounting holes both pass through the connecting end 222, and the connecting end 222 is connected to the limiting member 24. The at least two first mounting holes are arranged in a one-to-one correspondence with the at least two third mounting holes, and the at least two third mounting holes are arranged in a one-to-one correspondence with the at least two fourth mounting holes. The first mounting hole, the third mounting hole and the fourth mounting hole are connected in sequence, and the first optical fiber is arranged in the first mounting hole, the third mounting hole and the fourth mounting hole.

[0057] In the embodiment of the present invention, the working tip portion 22, the stopper 24 and the working tip handle 23 are an integrally formed structure and can be manufactured by injection molding or other methods.

[0058] In the embodiment of the present invention, at least two laser generating structures 10 are independently controlled to emit lasers respectively.

[0059] By controlling at least two laser generating structures 10 separately, at least two laser generating structures 10 can emit lasers of different powers. Lasers of different powers can produce different cutting depths. A laser with a large power has a larger cutting depth, and a laser with a small power has a smaller cutting depth.

[0060] At least two laser generating structures 10 emit lasers of different powers, and at least two first optical fibers corresponding to the at least two laser generating structures 10 transmit lasers of different powers. The cutting depth of the soft tissue at any position of the irregular incision can be controlled by adjusting the power of the lasers emitted by several first optical fibers corresponding to the position.

[0061] If there is a blood vessel and neural tube under the soft tissue at a certain position along the incision route, the operator can accurately find the first optical fibers responsible for cutting at that position, and then adjust the corresponding laser generating structures 10 to reduce the laser power emitted by the laser generating structures 10. The output laser power of these first optical fibers is reduced, and the cutting depth is reduced. This ensures that when the incision passes through the blood vessel and neural tube, damage to the blood vessel and neural tube is avoided as much as possible, thereby protecting the blood vessel and neural tube well.

[0062] like Figures 1 to 8 As shown, in an embodiment of the present invention, the laser cutting device includes at least two laser generating structures 10 , a laser transmission structure 30 and a working tip 20 .

[0063] At least two laser generating structures 10 are used to generate lasers, and each laser source has a unique identifier, that is, at least two laser generating structures 10 are independent and distinguishable from each other (for example, they can be identified by numbering, etc.), so that people can find the corresponding laser generating structure 10 according to their needs.

[0064] The laser transmission structure 30 can transmit the laser generated by the laser generating structure 10 to the working tip 20; the at least two second optical fibers inside the handle 31 correspond one-to-one to the at least two laser generating structures 10, that is, different second optical fibers correspond to different laser sources and can be traced one-to-one.

[0065] A plurality of first optical fibers are distributed and arranged on the working tip body 21 of the working tip 20, and the number and arrangement of the first optical fibers correspond to the number and arrangement of the second optical fibers inside the handle 31. When the working tip body 21 is mounted on the handle 31, at least two second optical fibers on the handle 31 correspond to and are connected to at least two first optical fibers on the working tip body 21.

[0066] At least part of the surface of the first optical fiber on the working tip body 21 is covered with a shape memory metal layer (the shape memory metal layer forms the working tip head 22). Due to the presence of this metal layer, the arranged first optical fibers can be bent into various shapes arbitrarily while ensuring that the gap between each first optical fiber remains unchanged (that is, there will be no cutting blind area between the first optical fibers).

[0067] Before cutting soft tissue, the first optical fiber on the working tip 22 is bent arbitrarily according to different incision designs, and then the output end of the bent first optical fiber is aligned and placed on the soft tissue without moving, and the laser generating structure 10 is turned on and operated until the cutting is completed. This can achieve simultaneous cutting of the expected irregular shape incision of the soft tissue, and there is no need to move the working tip 20 during cutting, and finally the cutting is completed accurately and efficiently.

[0068] It should be noted that in the embodiment of the present invention, according to the incision design requirements, the working tip body 21 can be bent into any shape to form a predetermined incision trajectory. The above-mentioned "irregular shaped incision" refers to an incision with a shape that is difficult to cut. If it is a regular incision, such as a circle, square, etc., it is also easy to cut.

[0069] In an embodiment of the present invention, the laser cutting device can be applied to a semiconductor laser therapeutic apparatus for laser cutting of soft tissue.

[0070] like Fig. 9 As shown, in an embodiment of the present invention, the laser cutting method adopts the above-mentioned laser cutting device for cutting, wherein the laser cutting method includes controlling at least two laser generating structures 10 to simultaneously emit lasers to the corresponding first optical fibers to cut the position to be cut.

[0071] Through the above steps, the output ends of at least two first optical fibers can emit lasers simultaneously and both are used for cutting, so that the laser cutting device has a larger cutting range at one time and can improve the cutting efficiency.

[0072] In an embodiment of the present invention, at least two laser generating structures 10 are controlled to simultaneously emit lasers to the corresponding first optical fibers, and the step of cutting the position to be cut includes: obtaining the cutting depth of the position to be cut corresponding to each first optical fiber; determining the laser power required for the first optical fiber corresponding to the position to be cut according to the obtained cutting depth information; determining the correspondence between the first optical fiber and the laser generating structure 10; and adjusting the laser power of the laser generating structure 10 corresponding to the first optical fiber according to the laser power required by the first optical fiber.

[0073] Through the above steps, different laser generating structures 10 are controlled to emit lasers of the same or different powers according to different cutting depths, so that at least two first optical fibers can transmit lasers of the same or different powers, thereby being able to control the cutting depth of the position to be cut. There is a one-to-one correspondence between the first optical fiber and the laser generating structure 10, which facilitates finding the corresponding laser generating structure 10 to adjust the laser emission power according to the cutting depth requirement.

[0074] like Fig. 9 As shown, in an embodiment of the present invention, before the step of obtaining the cutting depth of the position to be cut corresponding to each first optical fiber, the laser cutting method also includes: determining the cutting trajectory of the position to be cut; adjusting the shape of the output end of each first optical fiber according to the cutting trajectory of the position to be cut, so that the cutting trajectory formed by the output end of each first optical fiber is consistent with the determined cutting trajectory.

[0075] Through the above steps, the distribution form of the emission ends of at least two first optical fibers can be adapted to the shape of the cutting track of the position to be cut. In this way, when lasers are emitted simultaneously by at least two first optical fibers, the shape of the cutting track formed by at least two laser beams is adapted to the shape of the cutting track of the position to be cut, so that the position to be cut can be cut accurately and efficiently, and the adaptability is strong.

[0076] In an embodiment of the present invention, the step of adjusting the shape of the output end of each first optical fiber according to the cutting trajectory of the position to be cut includes: adjusting the shape of the working end of the working tip head according to the cutting trajectory of the position to be cut, so that the shape of the working end of the working tip head is consistent with the determined cutting trajectory; keeping the shape of the working end of the working tip head in the current state, and using the working end of the working tip head to shape the cutting trajectory formed by the output end of each first optical fiber.

[0077] Through the above steps, the shape of the working end 221 can be adapted to the shape of the cutting trajectory at the position to be cut, so that the distribution form of the output ends of at least two first optical fibers can be adapted to the shape of the cutting trajectory at the position to be cut, and further, the shape of the cutting trajectory formed by at least two laser beams simultaneously emitted by at least two first optical fibers can be adapted to the shape of the cutting trajectory at the position to be cut.

[0078] When an irregularly shaped incision is required in the soft tissue surgical area, the first optical fiber on the working tip 20 should be bent into a predetermined irregular shape and determined after comparison with the surgical area, and then the working tip body 21 should be installed on the handle 31. At this time, the second optical fiber on the handle 31 and the first optical fiber on the working tip body 21 are successfully docked. The power output of each first optical fiber can be adjusted on the laser generating structure 10 to meet the requirements of different cutting depths at different positions of the incision. The larger the power, the deeper the cutting, and the smaller the power, the shallower the cutting. The advantage of such a design is that if there are blood vessels and nerve tubes under the soft tissue at a certain position along the incision route, the operator can accurately find the first optical fibers responsible for cutting at that position, and then find the laser generating structures 10 corresponding to these first optical fibers, and correspondingly reduce the power of the laser emitted by these laser generating structures 10, so that the power of the output laser of these first optical fibers is reduced, which can effectively avoid damage to the blood vessels and nerve tubes. After the shape of the working end 221 and the emission power of at least two laser generating structures 10 are set, the working tip 22 bent in a predetermined shape is placed on the soft tissue without moving, and the machine operation is turned on to make at least two laser generating structures 10 emit lasers at the same time until the cutting is completed. The working tip 20 does not need to be moved manually during the whole cutting process, and finally the cutting trajectory is accurate, the cutting efficiency is high, the cutting depth is controllable, and the blood vessels and nerve tubes can be well protected.

[0079] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: at least two laser generating structures are used to emit lasers, at least two first optical fibers are used to transmit lasers, the working tip is placed at the position to be cut, and the laser transmitted by the first optical fiber can cut the position to be cut, thereby realizing the cutting function of the laser cutting device. The output ends of at least two first optical fibers are located on the same side of the working tip body and are arranged in sequence at intervals. In this way, the output ends of at least two first optical fibers can emit lasers at the same time and are both used for cutting, so that the laser cutting device has a larger cutting range at one time. In the technical solution of the present application, at least two first optical fibers can emit lasers at the same time to cut within a larger range, which can improve the cutting efficiency.

[0080] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0081] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0082] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser cutting device, characterized in that: include: At least two laser generating structures (10), both used for emitting laser light; A working tip (20), comprising a working tip body (21) and at least two first optical fibers arranged on the working tip body (21), the at least two first optical fibers being matched with at least two laser generating structures (10) in a one-to-one correspondence, the first optical fibers being used to transmit the laser, and the emission ends of the at least two first optical fibers being located on the same side of the working tip body (21) and being arranged in sequence and spaced apart; The working tip body (21) comprises: A working tip portion (22) having a working end (221) and a connecting end (222) arranged opposite to each other; A working tip handle (23) connected to the connecting end (222); Wherein, the shape of the working end (221) of the working tip (22) is adjustable; The output ends of at least two of the first optical fibers are connected to the working end (221) and change with the shape of the working end (221); the arranged first optical fibers can be bent into various shapes at will, and the gap between each of the first optical fibers remains unchanged; The working tip (22) is made of shape memory alloy or aluminum foil; At least two first mounting holes are provided on the working tip portion (22), the at least two first mounting holes are arranged in one-to-one correspondence with at least two first optical fibers, the first optical fibers are mounted in the first mounting holes, and the first mounting holes penetrate the working end (221); The laser cutting device further comprises a laser transmission structure (30) for transmitting laser light, wherein the laser transmission structure (30) comprises a handle (31) and at least two second optical fibers arranged on the handle (31); at least two of the second optical fibers are matched with at least two of the laser generating structures (10) in a one-to-one correspondence to transmit the laser light; the working tip body (21) is connected to the handle (31), and at least two of the first optical fibers are matched with at least two of the second optical fibers in a one-to-one correspondence to each other and are connected or contact-matched; The laser cutting device adjusts the shape of the working end of the working tip according to the cutting trajectory of the position to be cut, so that the shape of the working end of the working tip is consistent with the determined cutting trajectory; At least two of the laser generating structures (10) emit lasers of different powers.

2. The laser cutting device according to claim 1, characterized in that: The number of the first optical fibers is at least three, and the emission ends of the at least three first optical fibers are arranged in sequence and evenly spaced apart.

3. The laser cutting device according to claim 1, characterized in that: The working tip portion (22) is a sheet-like structure.

4. A laser cutting method, characterized in that: Cutting is performed using the laser cutting device according to any one of claims 1 to 3, wherein the laser cutting method comprises: At least two of the laser generating structures (10) are controlled to simultaneously emit laser light to the corresponding first optical fibers to cut the positions to be cut.

5. The laser cutting method according to claim 4, characterized in that: The step of controlling at least two of the laser generating structures (10) to simultaneously emit laser light to the corresponding first optical fiber to cut the position to be cut comprises: Obtaining a cutting depth at a to-be-cut position corresponding to each of the first optical fibers; Determine the laser power required for the first optical fiber corresponding to the position to be cut according to the obtained cutting depth information; Determining a corresponding relationship between the first optical fiber and the laser generating structure (10); The laser power of the laser generating structure (10) corresponding to the first optical fiber is adjusted according to the laser power required by the first optical fiber.

6. The laser cutting method according to claim 5, characterized in that: Before the step of obtaining the cutting depth of the to-be-cut position corresponding to each of the first optical fibers, the laser cutting method further includes: Determine the cutting trajectory of the position to be cut; The shape of the output end of each of the first optical fibers is adjusted according to the cutting trajectory of the position to be cut, so that the cutting trajectory formed by the output end of each of the first optical fibers is consistent with the determined cutting trajectory.

7. The laser cutting method according to claim 6, characterized in that: The step of adjusting the shape of the output end of each of the first optical fibers according to the cutting trajectory of the position to be cut comprises: Adjusting the shape of the working end of the working tip according to the cutting trajectory of the position to be cut so that the shape of the working end of the working tip is consistent with the determined cutting trajectory; The shape of the working end of the working tip is maintained in the current state, and the cutting track formed by the output end of each of the first optical fibers is shaped by using the working end of the working tip.

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