A multi-wavelength and three-dimensional steering laser surgical knife optical fiber device

Abstract

The present invention discloses a multi-wavelength and three-dimensional steering laser scalpel fiber optic device, comprising: a master control module, a medical laser source module, a beam transmission and control module, a multi-directional adjustable fiber optic module and a detection module. The multi-wavelength and three-dimensional steering laser scalpel fiber optic device of the embodiment of the present invention integrates optical fibers with different functions in the same main conduit, and realizes a variety of laser parameter combinations and precise regulation along the emission direction by controlling the medical laser source module and the optical fiber fine-tuning controller, thereby increasing the applicability and versatility of the laser under complex pathological conditions. Through the detection module, the emission angle can be accurately preset, and the lasers emitted by different optical fiber groups can be shaped through the shaping cover to ensure the uniformity of the output power and light distribution. The multi-wavelength and three-dimensional steering laser scalpel fiber optic device of this embodiment can be used to more accurately and efficiently perform laser combined treatment on the lesion area, reducing collateral damage.

Description

Technical Field

[0001] The invention relates to the field of laser technology, in particular to a multi-wavelength and three-dimensional steering laser scalpel optical fiber device. Background Art

[0002] Since the first ruby ​​laser was introduced in 1960, lasers have been used in medicine. Laser surgery is widely used in clinical trials. The application of lasers has promoted and guided biomedicine to make new breakthroughs in many areas. In existing laser medical technology, optical fibers are generally used to output lasers vertically or to output single-function lasers obliquely along an inclined surface. The laser irradiation function is single, and the laser treatment of complex biological lesions cannot simultaneously meet the functions of combined treatment with adjustable optical parameters, continuously adjustable emission direction, and uniform irradiation area. It is necessary to switch laser therapeutic devices or optical fibers with different functions to achieve ablation, hemostasis, resection and other functions respectively. It occupies a large space, is complex and arduous to operate, and increases the complexity and risk of the operation. Conventional laser fiber systems can no longer meet the needs of multi-functional clinical treatment of an increasing number of complex diseases.

[0003] Therefore, it is necessary to design an integrated multi-wavelength and three-dimensional steering laser scalpel fiber device to overcome the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The purpose of the present invention is to make up for the defects of the prior art and provide a multi-wavelength and three-dimensional steering laser surgical fiber device, which can provide adjustability in dealing with different target irradiation objects, provide more accurate and efficient laser emission direction selection and combined treatment laser parameters; and without affecting the working effect, ensure the stability and high adaptability of the laser output function, range of action and power.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, an embodiment of the present invention provides a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device, comprising:

[0008] A medical laser source module, comprising at least one laser for generating different lasers;

[0009] The beam transmission and control module receives the laser input from the medical laser source module, filters, splits and combines the laser beams, and couples the selected laser beams into the input end of the multi-directional adjustable optical fiber module;

[0010] A multi-directional adjustable optical fiber module comprises an optical fiber fine-tuning controller, a main conduit, an optical fiber bundle and a shaping hood; the optical fiber fine-tuning controller is connected to the optical fiber bundle and is used to adjust the expansion and contraction of the optical fiber bundle in the length direction and the deflection angle of the optical fiber bundle; the main conduit is a hollow structure and has a first end and a second end arranged oppositely; the optical fiber bundle is arranged in the main conduit, and the output end of the optical fiber bundle extends out of the first end of the main conduit, the optical fiber bundle comprises a plurality of optical fiber groups with different functions, each optical fiber group comprises at least one optical fiber, and optical fibers of different groups are arranged in the main conduit according to a certain rule; the shaping hood is arranged at the output end of the optical fiber bundle, the output end of the optical fiber bundle is located in the shaping hood, the shaping hood is connected to the main conduit, and a plurality of microlens arrays are arranged on the inner wall of the shaping hood for shaping the laser emitted by the optical fiber bundle;

[0011] A detection module is used to detect the parameters of the optical fiber fine-tuning controller and send the parameters to the master control module;

[0012] The master control module is used to receive the parameters of the detection module and adjust the application amount of the optical fiber fine-tuning controller on the optical fiber bundle according to the parameters until the target preset value is met.

[0013] The optical fiber fine-tuning controller includes a control module and a traction module.

[0014] The traction module is fixed to the outside of the optical fiber cladding, and the regulating module is used to control the amount of force applied to the traction module to drive the optical fiber output end to deflect at an angle or to extend and retract the length along the axial direction of the optical fiber.

[0015] Optionally, the traction module includes a plurality of traction wires, and the traction wires are fixed to the outside of the cladding of the optical fiber.

[0016] The control module includes a first adjustment key and a second adjustment key, and the first adjustment key and the second adjustment key are respectively connected to different traction wires. By rotating the first adjustment key, stress is applied to the traction wire connected to it to drive the angular deflection of the optical fiber output end along the radial direction of the optical fiber. By moving the second adjustment key, stress is applied to the traction wire connected to it to drive the length of the optical fiber output end along the axial direction of the optical fiber to expand and contract.

[0017] Optionally, the traction module includes a plurality of induction strips, and the induction strips are fixed to the outside of the cladding of the optical fiber.

[0018] The control module includes a first power button and a second power button, which are respectively connected to different sensor strips. The deformation of the sensor strip is controlled by controlling the amount of electricity applied by the first power button and the second power button, so as to drive the optical fiber output end to deflect at an angle or extend in length along the axial direction of the optical fiber.

[0019] Optionally, the optical fiber fine-tuning controller can be a micro-spiral knob, or can be implemented by a stress sensor, a mechanical pull ring, micro-current regulation, etc.

[0020] Optionally, the material of the main conduit is mainly divided into metal and non-metal materials, and its material properties include but are not limited to elasticity, inelasticity, telescopic memory properties, etc. Its structure can be designed with corresponding functional structures according to different application scenarios, including but not limited to fishing net-type micro-hollow thin layer structure and hollow thin tubular structure.

[0021] Optionally, the materials of the optical fiber core and cladding are mainly divided into inorganic materials or organic materials that are tunable, elastic, and have low-loss absorption for lasers with wavelengths within a certain range and have a certain degree of stretchability.

[0022] Optionally, the end face of the output end of the optical fiber bundle includes at least two of a bevel, a curved surface and a plane, wherein the laser entering the output end face as a bevel is output from the side wall of the optical fiber which is at an acute angle to the bevel, and the angle α between the output light and the axis of the main guide tube along the second end pointing to the first end satisfies: 0°<α<90°.

[0023] Optionally, for an optical fiber with a beveled end face at the output end, the laser is output from the long side wall of the optical fiber, and an angle α between the output light and the axis of the main conduit along the second end pointing to the first end satisfies: 0°<α<90°.

[0024] Optionally, for an optical fiber with a beveled end face at the output end, the beveled end face forms an angle of 30° to 70° with the axial direction.

[0025] Optionally, the end face of the output end of the optical fiber bundle includes a curved surface, and the curvature radii of the curved surfaces of different optical fibers are the same or different.

[0026] Optionally, the main conduit is divided into at least two areas, and optical fiber groups with different functions are respectively arranged in different areas.

[0027] Optionally, the optical fiber bundle includes a first optical fiber group having a first function, a second optical fiber group having a second function, and a third optical fiber group having a third function, the first optical fiber group includes at least one first optical fiber, the second optical fiber group includes at least one second optical fiber, the third optical fiber group includes at least one third optical fiber, the end face of the first optical fiber output end is a bevel, the end face of the second optical fiber output end is a curved surface, and the end face of the third optical fiber output end is a plane.

[0028] Optionally, the main conduit is divided into three areas from the inner wall to the center, namely, a first area, a second area and a third area, wherein in the first area, the first optical fiber and the second optical fiber are arranged alternately in sequence, in the second area, the third optical fiber is arranged in sequence, and the third area includes a second optical fiber.

[0029] Optionally, a database is provided in the master control module, and the database stores the correspondence between the extension and deflection angles in the length direction of the optical fiber bundle and the applied amount.

[0030] (III) Beneficial effects

[0031] The energy of the multi-wavelength and three-dimensional steering laser scalpel fiber device is provided by at least two optical paths, so that the laser output power, output angle and irradiation area matching methods in different regions of the laser guiding tube can be realized through a combination of various laser parameters and output ranges, and then the target object can be irradiated more efficiently, conveniently and accurately, and at the same time, the non-target area will not be over-damaged;

[0032] The beam transmission and control module changes the optical devices in the beam transmission and control module according to the treatment requirements, and performs operations such as beam splitting, beam combining and coupling on the laser beam to achieve selective laser output.

[0033] At the same time, the fiber micro-regulator of the multi-wavelength and three-dimensional steering laser scalpel fiber device adjusts the continuous telescopic movement in the length direction of the fiber bundle and the continuous deflection angle of the fiber bundle. This structure can realize precise and continuous regulation of the beam exit angle and offset through the detection module, so as to more safely and accurately adapt to tiny or high-risk tissue structures;

[0034] Multiple groups of optical fibers are arranged in an array combination. The number, diameter, stacking position and end face shape of the inner and outer energy layer optical fibers have various combination methods or selection methods. Through the adjustment of the fiber micro-regulator and the selection of the exit fiber end face, combined with multiple optical treatment parameter combinations, the selection of different laser divergence angles, emission powers and irradiation areas is realized, which is applicable to different parts, different shapes and volumes of the object, and further increases the applicability of the laser fiber in different working environments;

[0035] At the same time, the laser output end of the multi-wavelength and three-dimensional steering laser scalpel fiber device has various shape structures and combination methods. This structure can expand the laser action range and has functions of forward large area, forward focusing, side direction and other energy releases, so as to better adapt to various working environments.

[0036] In addition, after the protective cover at the output end is polished, it can effectively ensure the cleanliness of the laser fiber output end and ensure the stability and uniformity of the output power and light distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 FIG. is a schematic structural diagram of a multi-wavelength and three-dimensional steering laser scalpel fiber device system provided by the present invention.

[0039] Figure 2 The present invention provides a schematic diagram of a multi-directional adjustable module structure of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device.

[0040] Figure 3 The present invention provides a schematic diagram of the structure of a beam transmission and control module of a multi-wavelength and three-dimensional steering laser scalpel optical fiber device.

[0041] Figure 4 a-4c is a side view of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided by the present invention, wherein the optical fiber output end face is an inclined surface, a concave surface, and a convex surface.

[0042] Figure 5 The present invention provides a front view of the output end face of a functional area type optical fiber bundle of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device.

[0043] Figure 6 This is a front view of the output end face of another functional area type optical fiber bundle of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided by the present invention.

[0044] Figure 7 This is a front view of the output end face of another functional area type optical fiber bundle of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided by the present invention.

[0045] Figure 8 It is a side view of the memory material structure at the output end of the optical fiber bundle of a multi-directionally adjustable optical fiber module of a multi-wavelength and three-dimensional steering laser surgical fiber device provided in the first embodiment of the present invention.

[0046] Figure 9 It is a schematic diagram of the structure of an optical fiber fine-tuning controller of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the first embodiment of the present invention.

[0047] Figure 10 It is a schematic diagram of the deflection and extension of the output end of the optical fiber bundle of a multi-directional adjustable optical fiber module of a multi-wavelength and three-dimensional steering laser surgical fiber device provided in the first embodiment of the present invention.

[0048] Figure 11 This is a front view of the output end face of an optical fiber bundle of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the first embodiment of the present invention.

[0049] Figure 12 It is a side view of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the first embodiment of the present invention, in which the optical fiber output end face is concave.

[0050] Figure 13It is a side view of a shaping cover of a multi-directionally adjustable optical fiber module of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the first embodiment of the present invention.

[0051] Figure 14 It is a side view of the laser emitted by a multi-directional adjustable optical fiber module of a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the first embodiment of the present invention.

[0052] Figure 15 It is a side view of the memory material structure at the output end of the optical fiber bundle of another multi-directional adjustable optical fiber module of the multi-wavelength and three-dimensional steering laser surgical fiber device provided by the second embodiment of the present invention.

[0053] Figure 16 This is a schematic diagram of the multi-directional adjustable module structure of another multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the second embodiment of the present invention.

[0054] Figure 17 This is a front view of the output end face of an optical fiber bundle of another multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In the description of this specific embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0057] In the description of this specific embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this specific embodiment can be understood according to specific circumstances.

[0058] In order to overcome the problem of single output function of laser optical fiber in the related art, the embodiment of the present invention provides a multi-wavelength and three-dimensional steering laser surgical fiber device. Figures 1 to 17 As shown, the multi-wavelength and three-dimensional steering laser surgical knife optical fiber device of the present invention is described.

[0059] like Figure 1 As shown, a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided by the present invention includes a master control module 5, a medical laser source module 1, a beam transmission and control module 2, a multi-directional adjustable optical fiber module 3 and a detection module 4.

[0060] The medical laser source module 1 includes at least one laser for generating different lasers and outputting different combinations of laser optical parameters, including operation mode, laser power, pulse energy, pulse width, repetition frequency, wavelength, etc., to provide laser energy input for the entire system. The medical laser source module 1 with multiple optical parameter combination outputs is not limited in its implementation method or laser type, including one laser outputting multiple modes of optical parameter combinations or multiple groups of lasers operating together to achieve multiple modes of optical parameter combinations.

[0061] The beam transmission and control module 2 receives the laser input from the medical laser source module 1, filters, splits, and combines the laser, and couples the selected laser into the input end of the multi-directional adjustable optical fiber module 3. The implementation methods of filtering, splitting, combining, and coupling into the optical fiber bundle include coating, gradient optical lens, and optical microlens array, etc., splitting, combining, and coupling the laser beam into the optical fiber bundle 33, and finally realizing the selective output of multiple optical parameter combinations; it can also be achieved by mechanical movement of optical devices such as internal collimators, beam splitters, reflectors, beam combiners, light absorbing devices, and coupling mirrors. The mechanical movement includes approaching, moving away, and deflecting operations relative to the linear direction of the laser module, etc., to adjust the optical path of the input optical fiber bundle 33, and realize the multifunctional selective output of the multifunctional optical parameter combination. For example, by using an electrically controlled guide rail slider type mechanical device design, under the control of the electrical signal of the master control module, the two wavelengths of laser beams output by a laser are split, and the two wavelengths of laser light are respectively coupled into the input end of the multi-directional adjustable optical fiber module 3 close to the beam transmission and control module 2, so as to realize the optical path selection transmission of the laser beam. The beam transmission and control module 2 is composed of one or more optical elements, including but not limited to a gradient optical coupling lens group, a microlens array, a collimator, a beam splitter, a reflector, a beam combiner, a light absorbing device and other optical elements with the functions of beam splitting, beam combining and coupling. Each optical element splits or combines one or more laser beams emitted by the medical laser source module 1 according to a certain combination method and arrangement rule, and inputs the input end of the multi-directional adjustable optical fiber module 3 after coupling.

[0062] The multi-directional adjustable optical fiber module 3 includes an optical fiber fine-tuning controller 31, a main guide tube 32, an optical fiber bundle 33 and a shaping cover 34. The multi-directional adjustable optical fiber module 3 transmits the laser light adjusted by the beam transmission and control module 2 from the input end of the multi-directional adjustable optical fiber module 3 to the output end of the multi-directional adjustable optical fiber module 3, and adjusts the optical fiber bundle 33 in the length direction under the control of the master control module 5. and the deflection angle of the optical fiber bundle 33 The combination of the output optical fiber end face and the shaping cover 34 realizes continuous wide-angle change of the laser emission direction, thereby realizing directional conduction of the laser.

[0063] The optical fiber fine-tuning controller 31 is connected to the optical fiber bundle 33 and is used to adjust the extension and contraction of the optical fiber bundle 33 in the length direction and the deflection angle of the optical fiber bundle 33 .

[0064] The main conduit 32 is a hollow structure, having a first end 321 and a second end 322 arranged opposite to each other. The cross section of the main conduit 32 perpendicular to the axial direction can be circular, rectangular, other polygonal or irregular shapes, and there is no restriction on the specific shape of the cross section. The material of the main conduit 32 is mainly divided into metal and non-metal materials, and its material properties include but are not limited to elasticity, inelasticity, and telescopic memory properties. Its structure can be designed with corresponding functional structures according to different application scenarios, including but not limited to a fishing net-type micro-hollow thin layer structure and a hollow thin tubular structure.

[0065] The optical fiber bundle 33 is arranged in the main conduit 32, and the output end of the optical fiber bundle 33 extends out of the first end 321 of the main conduit 32. The optical fiber bundle 33 includes a plurality of optical fiber groups with different functions. Each optical fiber group includes at least one optical fiber. Optical fibers of different groups are arranged in the main conduit 32 according to certain rules, for example, they can be arranged in layers, crosses, or regions. The basic structure of each optical fiber in the optical fiber bundle 33 is a core 333, a cladding 332, and a protective layer 331. The materials of the core 333 and the cladding 332 are mainly inorganic materials or organic materials with certain expansion and contraction, elasticity, tunability, and low-loss absorption of lasers with wavelengths within a certain range. In some embodiments, the optical fiber fine-tuning controller 31 can be sleeved on the main conduit 32 to adjust the expansion and contraction and angle deflection of the output end of the optical fiber bundle 33.

[0066] Since different fiber groups are used to achieve different functions, different fiber groups can correspond to one laser, different fiber groups can correspond to one laser respectively, or several fiber groups can share one laser and other fiber groups can correspond to one laser respectively. When different fiber groups correspond to the same laser, the corresponding relationship of transmission can be controlled by the beam transmission and control module 2 between each fiber group of the multi-directional adjustable fiber module 3 and the laser of the medical laser source module 1. When a fiber group with a certain function is required to work, the electrical control signal corresponding to the beam transmission and control module 2 is output through the master control module 5, and the spatial position of the optical element in the beam transmission and control module 2 is adjusted to realize the splitting, combining and coupling of the laser to the input end of the multi-directional adjustable fiber module 3. At this time, the master control module 5 is controlled to adjust the electrical control signal corresponding to the medical laser source module 1 to realize the selective transmission of laser or laser combination of part or all of the fiber groups.

[0067] In addition, the shaping cover 34 is arranged at the output end of the optical fiber bundle 33 and connected to the first end 321 of the main conduit 32, and the portion of the optical fiber bundle 33 extending out of the main section is located inside the shaping cover 34. The shaping cover 34 is connected to the first end of the main conduit, and a plurality of microlens arrays are arranged on the inner wall of the shaping cover 34 for shaping the laser emitted by the optical fiber bundle 33. The setting of the shaping cover 34 can not only protect the optical fiber bundle 33, but also shape the laser of each optical fiber group according to the requirements, so as to ensure the stability and uniformity of the output power and light distribution, so that the emitted laser meets the use requirements.

[0068] The detection module 4 is used to detect the parameters of the optical fiber fine-tuning controller 31 and send the parameters to the master control module 5, which can realize the numerical detection of the telescopic length and deflection angle of the optical fiber output end and the feedback signal response function. For example, a type of material represented by mechanical force is used as the optical fiber cladding. Under the fine adjustment of the doctor or operator, the angle deflection or telescopic amount of the optical fiber output end is fed back according to the amount of application of the regulator until the target preset value is reached. The deformation of the optical fiber output end is realized by the input force signal or electrical signal through the sensing device, and finally displayed in the master control module 5 as the numerical value after the relationship conversion, so as to realize the precise control and measurement of the expected telescopic length or angle deflection, and provide real-time feedback.

[0069] The master control module 5 is used to receive the parameters of the detection module 4 and adjust the amount of the optical fiber fine-tuning controller 31 applied to the optical fiber bundle 33 according to the parameters until the target preset value is met. The angle deflection or telescopic change achieved by adjusting the optical fiber fine-tuning controller 31 is obtained through detection, and is checked with the database information of the master control module 5. If the target preset value is not reached, negative feedback is performed to continue to increase or decrease the amount of application to the optical fiber fine-tuning controller 31; if the target preset value has been reached, a positive feedback signal is output to complete the target preset value and stop regulation.

[0070] It is understandable that the master control module is provided with a database, and the database stores the correspondence between the expansion and contraction, deflection angle and the applied amount of the optical fiber bundle in the length direction. After receiving the parameters of the detection module 4, the target preset value is compared with the information in the database according to the parameters to adjust the applied amount of the optical fiber fine-tuning controller 5 to the optical fiber bundle. The correspondence between the expansion and contraction, deflection angle and the applied amount of the optical fiber bundle in the length direction stored in the database is established after a large amount of experimental data collection before the device leaves the factory.

[0071] The multi-wavelength and three-dimensional steering laser scalpel fiber device of the embodiment of the present invention utilizes a medical laser source module 1 with multiple laser parameter outputs, and couples lasers with different optical parameters into the fiber group of the multi-directional adjustable fiber module 3 through the beam transmission and control module 2, and the final emitted laser energy is provided by at least one fiber bundle 33. By controlling the medical laser source module 1, the beam transmission and control module 2 and the fiber micro-controller 31, according to the feedback signal of the detection module 4, a precise control combination of multiple laser parameters and output ranges of different fiber groups is achieved, and then the laser output power, output angle, and irradiation area matching mode of different regions are achieved, thereby improving the applicability of laser optical fibers in different working environments, especially the accuracy and safety of operations on fine structures or complex pathological tissue regions. In addition, by optimizing the shape of the fiber output end face and matching the shaping cover 34, the laser beams emitted by different fiber groups can be macro-shaped to ensure the stability and uniformity of the output power and light distribution.

[0072] In some embodiments, the laser of the medical laser source module 1 is at least one of a fiber laser, a solid laser, a semiconductor laser, a gas laser, etc., and the output laser mode includes at least one of continuous operation or pulsed operation. The output power, operation mode, output time, etc. of the laser are adjustable to provide a variety of laser treatment optical parameter combinations.

[0073] In some embodiments, the fiber fine-tuning controller 31 adjusts the expansion and contraction of the fiber bundle 33 in the axial direction and the deflection in the radial direction by utilizing some special materials to react to certain physical quantities such as deflection under force, contraction under light, or deflection under current.

[0074] The optical fiber fine-tuning controller 31 includes a control module and a traction module; the traction module is fixed to the outside of the optical fiber cladding, and the control module is used to apply an amount of force to the traction module to drive the optical fiber output end to deflect at an angle or extend and retract the length along the axial direction of the optical fiber. The control module of the optical fiber fine-tuning controller 31 includes but is not limited to a micro-screw knob, a stress sensor, a mechanical pull ring, micro-current control, and a light-response sensor drive. The traction module includes the above-mentioned special materials.

[0075] In a specific implementation, please refer to Figure 2 As shown, the traction module includes a plurality of traction wires, and the traction wires are fixed to the outer side of the cladding of the optical fiber. The control module includes a first adjustment key 311 and a second adjustment key 312, and the first adjustment key 311 and the second adjustment key 312 are respectively connected to different traction wires. By rotating the first adjustment key 311, stress is applied to the traction wire connected to it, so as to drive the angle of the optical fiber output end to deflect. By moving the second adjustment key 312, stress is applied to the traction wire connected thereto, so as to drive the length of the optical fiber output end along the axial direction of the optical fiber to expand and contract. , respectively realizing precise control of the laser emission direction at the output end of the optical fiber.

[0076] In another specific implementation, see Figure 16 As shown, the traction module includes a plurality of induction strips, which are fixed to the outer side of the cladding of the optical fiber. The control module includes a first power button 311 and a second power button 312, which are respectively connected to different induction strips, and the deformation of the induction strips is controlled by controlling the amount of electricity applied by the first power button 311 and the second power button 312, so as to drive the angle deflection of the optical fiber output end. Or the length of the optical fiber in the axial direction is extended or contracted .

[0077] In some embodiments, see Figure 3 As shown, the beam transmission and control module 2 includes a collimator lens group 21 and a microlens array group 22 with beam splitting and coupling functions. The laser beam emitted by the medical laser source module 1 is incident on the collimator lens group 21, and the collimator lens group 21 includes at least one gradient lens. The refractive index of the gradient lens material varies with the incident wavelength, and the relationship between the refractive index and the wavelength is: . After being collimated, it is transmitted to the microlens array group 22, and the laser beams of different wavelengths in the parallel light beam are split, and coupled and transmitted to the second end 321 of the optical fiber bundle 33 of the multi-directional adjustable optical fiber module 3, so as to realize the multi-beam transmission of laser beams of different wavelengths. In other embodiments, the beam transmission and control module 2 may also include optical devices such as collimators, beam splitters, reflectors, beam combiners, light absorbing devices, coupling mirrors, etc., which are used to realize the optical path adjustment and selective output of the output laser. It can realize the transmission of different laser parameters along different optical fibers through the adjustment of the beam splitter. The beam transmission and control module 2 controls and realizes functions such as laser ablation, hemostasis, and resection. It is also possible to realize the coupling of different laser parameters into a single-function optical fiber group composed of one or more optical fibers through a beam combiner, so as to realize the synchronous combined treatment of different laser parameters. Through the output combination of different laser parameters, the high efficacy of laser surgery can be realized conveniently and efficiently, so as to be suitable for the clinical treatment of complex pathological tissues and serious complications, and greatly improve the therapeutic effect of laser surgery.

[0078] In some embodiments, the shape of the fiber end face at the output end of the optical fiber and the shaping cover 34 can be combined to achieve a wide angle change in the laser emission direction. The end face of the output end of the optical fiber bundle 33 includes at least two of an inclined surface, a curved surface and a plane. The curved optical fiber group is used to converge or diverge the laser. With the shaping cover 34, it can realize the parallel, focused and divergent emission of the laser beam. The inclined optical fiber group is used to emit a wide range of oblique light beams. The flat optical fiber group is used to emit lasers with a small divergence angle. With the shaping cover 34, it can focus the laser beam at a fixed position. It should be noted that the end face shape of the output end of the optical fiber bundle 33 mentioned in this article refers to the end face shape of the output end of a single optical fiber. By setting the end faces of the output ends of different optical fiber groups to different shapes, different laser emission wavelengths, emission angles, emission powers and irradiation areas can be selected through the combination of different optical fiber groups to be suitable for different parts of the object and different shapes and volumes, further increasing the applicability of the laser optical fiber in different working environments.

[0079] like Figure 4 As shown in a-4c, the end face of the output end of the optical fiber is a bevel, and its bevel end face is in the axial direction. This setting realizes the maximum laser transmission efficiency, and after being shaped and output by the shaping cover 34, the output laser reaches the target area with the best spot shape. The incident laser is totally reflected by the bevel end face or reflected by the bevel end face coated with a high-reflection film, and the reflected light is output from the long side wall of the optical fiber. The angle α between the light and the axis of the main conduit 32 along the second end 322 pointing to the first end 321 satisfies: 0°<α<90°. For the optical fiber with a bevel end face at the output end, its bevel end face is 30°~70° with the axial direction, realizing the oblique light output from the side wall, irradiating the side wall position of the target object, so as to realize the functions of laser elimination, etc. The long side wall mentioned here refers to the area where the side wall length of the bevel optical fiber is the longest parallel to the axis and longer than the short side wall, and the side of the long side wall closest to the research target at the laser output end.

[0080] The output end face of the optical fiber bundle 33 includes a curved surface, and the curved surface includes a concave surface and / or a convex surface, and the curvature radius of the concave surface of different optical fibers is the same or different, and the curvature radius of the convex surface of different optical fibers is the same or different. If the curvature radius of the concave surface / convex surface is the same, the shaping cover 34 with one-to-one spatial position is used to achieve the convergence of the light beam at the target position outside the shaping cover 34 or the uniform emission over a large area; if the curvature radius of the concave surface / convex surface is different and changes within a certain range, the microlens array at the corresponding spatial position of the shaping cover 34 also changes accordingly, so that the final shaped output light beam satisfies the uniform output of a wide beam or makes the focused light spot size converge to a reasonable value according to the working environment.

[0081] In some embodiments, the main conduit 32 is divided into at least two areas, each of which is provided with an optical fiber group with different functions, that is, the end faces of the output ends of the optical fiber bundles 33 in the same area have the same shape and function. Figure 5 As shown, the main conduit 32 is divided into three areas, and the optical fiber bundle 33 includes three functional optical fiber groups, namely a first optical fiber group 334, a second optical fiber group 335 and a third optical fiber group 336. The first optical fiber group 334 includes at least one first optical fiber, the second optical fiber group 335 includes at least one second optical fiber, and the third optical fiber group 336 includes at least one third optical fiber. The end face of the first optical fiber output end is an inclined surface, the end face of the second optical fiber output end is a curved surface, and the end face of the third optical fiber output end is a flat surface. The first optical fiber group 334, the second optical fiber group 335 and the third optical fiber group 336 are respectively located in the three areas. In another specific embodiment, as Figure 6 As shown, the main conduit 32 is divided into three layers, namely the first layer, the second layer and the third layer from the outside to the inside, and the optical fiber bundle 33 includes three functional optical fiber groups, namely the first optical fiber group 334, the second optical fiber group 335 and the third optical fiber group 336. Figure 6 For example, the first fiber group 334, the second fiber group 335 and the third fiber group 336 are located in the first layer, the second layer and the third layer, respectively. The annular area close to the inner wall of the main conduit 32 is the first fiber group 334, and the second fiber area 335 and the third fiber area 336 are arranged in the radial direction. The first fiber group 334 is at the outermost side of the fiber bundle 33, and realizes lateral laser output, which can achieve laser ablation of the edge of the target area such as tumors, nodules and other diseased tissues; the second fiber group 335 matches the output end face of the corresponding shaping area of ​​the shaping cover 34, and realizes large-area uniform light output in the output direction of the fiber bundle 33, which can achieve large-area uniform ablation of the central part of the target area such as tumors, nodules and other diseased tissues; the third fiber group 336 matches the output end face of the focusing area corresponding to the shaping cover 34, and realizes the laser to achieve an extremely fine focused spot at a distance of 1mm, matches the corresponding output wavelength and pulse width, and realizes the efficient cutting function of the "laser scalpel". This structure can achieve multiple adaptability of output laser parameters, multiple selectivity of transmission direction and irradiation area, and better adapt to various working environments. After grinding and polishing, the shaping cover 34 at the output end can effectively ensure the neatness of the output end of the laser fiber, ensure the stability and uniformity of the output power and light distribution, and especially reduce secondary mechanical damage to biological tissues.

[0082] In some embodiments, the optical fiber bundle 33 includes three functional optical fiber groups, namely, a first optical fiber group 334, a second optical fiber group 335, and a third optical fiber group 336. The first optical fiber group 334 includes at least one first optical fiber, the second optical fiber group 335 includes at least one second optical fiber, and the third optical fiber group 336 includes at least one third optical fiber. The end face of the first optical fiber output end is an inclined surface, the end face of the second optical fiber output end is a curved surface, and the end face of the third optical fiber output end is a plane. The main conduit 32 is divided into three layers from the inner wall to the center, namely, a first layer area, a second layer area, and a third layer area. In the first layer area, the first optical fiber and the second optical fiber are arranged alternately in sequence, and in the second layer area, the third optical fiber is arranged in sequence, and the third layer area includes a second optical fiber. Figure 7 As shown, the first optical fiber and the second optical fiber in the first layer are arranged alternately in a circular pattern; the second layer is a combination of third optical fibers arranged in a circular pattern; and the third layer is a second optical fiber. The first optical fiber group 334 composed of all first optical fibers realizes the lateral output of the laser; the second optical fiber group 335 composed of all second optical fibers matches the shaping cover 34 to realize the uniform output of the laser; the third optical fiber group 336 matches the shaping cover 34 to realize the focused emission of the laser. In addition to realizing the multi-adaptability, stability, multi-selectivity and safety of the output laser parameters, this structure can also maximize the irradiation area of ​​the output laser, and realize efficient and rapid laser ablation of large nodules and large tumors with a diameter of more than 3 cm in tissues such as the liver and lungs.

[0083] Embodiment 1:

[0084] like Figure 1 As shown, a multi-wavelength and three-dimensional steering laser surgical knife optical fiber device provided by the present invention includes a master control module 5, a medical laser source module 1, a beam transmission and control module 2, a multi-directional adjustable optical fiber module 3 and a detection module 4.

[0085] The master control module 5 provides a function setting area for the electrical signal control setting of each module in the system, and realizes the numerical display and signal feedback of the expansion or deflection amount of the output end of the optical fiber bundle 33 measured by the detection module 4.

[0086] The medical laser source module 1 contains a Nd:YAG solid laser and provides laser energy input for the entire system. The output laser parameters and operation modes are: continuous operation of 1064nm, average power 1~50W continuously adjustable; pulse operation of 1064nm, pulse width 30ns, maximum average power 5W, repetition frequency 100Hz; pulse operation of 532nm, pulse width 20ns, maximum average power 5W, repetition frequency 100Hz.

[0087] like Figure 3As shown, the laser output by the medical laser source module 1 enters the beam transmission and control module 2 after being transmitted through the air. According to the treatment requirements, under the control of the master control module 5, according to the corresponding wavelength, a suitable collimating lens group 21 and a microlens array 22 are selected to control the output laser wavelength and the input end of the optical fiber bundle 33 built into the multi-directional adjustable optical fiber module 3 to be coupled.

[0088] The multi-directional adjustable optical fiber module 3 includes an optical fiber fine-tuning controller 31 fixed on a main guide tube 32, a main guide tube 32, an optical fiber bundle 33, and a shaping cover 34. Figure 2 As shown, the traction module of the optical fiber fine-tuning controller 31 includes a plurality of traction wires, which are fixed to the outer side of the cladding of the optical fiber. The control module of the optical fiber fine-tuning controller 31 includes a fine-tuning device of a first adjustment key 311 and a second adjustment key 312, which are annularly nested on the main guide tube 32 of the outer layer of the optical fiber bundle 33, and the first adjustment key 311 and the second adjustment key 312 are respectively connected to different traction wires. Figure 8 As shown, the optical fiber 33 is composed of a protective layer 331, a cladding 332, and a core 33; wherein the cladding is divided into an inner cylindrical layer of commonly used optical fiber cladding optical material and a pulling wire at the output end of the optical fiber, and the pulling wire is composed of an ultra-thin outer layer of memory metal nickel-titanium alloy. The metal spiral tail end 313 of the outer pulling wire at the output end of the optical fiber extends three metal pulling wires to the optical fiber input end along the optical fiber transmission direction, close to the inner cladding of the optical fiber, to the connection of two adjustment keys of the optical fiber fine-tuning controller 31. The three pulling wires include deflection lines 3131 located at symmetrical positions at both ends of any diameter of the optical fiber end face and a telescopic line 3132 at the middle position of any side. When initially piercing the biological tissue lesion, the metal spiral tail end 313 is in a slightly compressed state, and the first adjustment key 311 and the second adjustment key 312 are selected to rotate or move according to the size and position of the lesion tissue. As shown Figure 9 As shown, the first adjustment key 311 acts on the collective linear array 314 of the deflection line 3131 of the single memory metal pulling wire. By rotating the first adjustment key 311, the collective linear array 314 is correspondingly driven to stretch, so as to realize the deflection angle of the optical fiber at the optical fiber output end toward the metal side of the deflection line 3131. The second adjustment key 312 acts on the collective line array 315 of the extension lines of the other two telescopic lines 3132. By moving and adjusting the position of the second adjustment key 312, the corresponding metal filament 3132 collective line array 315 is compressed or stretched to achieve the telescopic change along the optical fiber transmission direction. According to the stress-deflection angle relationship of the metal, after the detection module 4 tests and signal feedback, the deflection angle or expansion change amount indicated by the doctor is finally achieved; and finally it acts on clinical laser surgery, such as Figure 10 As shown, they respectively represent the continuous deflection and compression / elongation changes within a certain range at the output end of the optical fiber under control.

[0089] The optical fiber bundle 33 can also be based on the above-mentioned fine-tuning controller 31, and the output end surface is respectively concave and flat, and is guided by a main conduit 2 with an inner diameter of 0.6mm and an outer diameter of 0.65mm. The main conduit 32 is divided into two layers from the inner wall to the center, namely the first layer area and the second layer area. Figure 11 The output end face front view is shown, wherein the first optical fibers are arranged in sequence in the first layer area, and the second optical fibers are arranged in sequence in the second layer area. There are 15 optical fibers in total, including 11 in the first optical fiber group and 4 in the second optical fiber group.

[0090] like Figure 12 The optical fiber shown in the figure, the first optical fiber group 33-1 is composed of a plurality of second optical fibers with a core diameter of 0.1mm, a cladding diameter of 0.13mm, and a spherical concave optical fiber output end surface. The curvature radius of each second optical fiber end surface is 1~0.5mm, and the center of curvature is colinear with the respective axis. The second laser is transmitted into the first optical fiber group 33-1, guided by the main guide tube 32, and the laser is totally reflected inside the first optical fiber, and is axially aligned with the second optical fiber at the concave output end surface of the first optical fiber group 334. The laser beam is emitted at a divergence angle. A microlens array type shaping cover 34 is connected near the output end of the optical fiber, such as high boron glass or any other high-transmittance high-temperature resistant material, to achieve the focused emission of the laser output from the first optical fiber. A high-transmittance film can also be plated on the output end face of the first optical fiber to improve the transmittance and the light path transmission efficiency. Finally, a laser focused output beam is formed 1 mm away from the outer surface of the shaping cover 34.

[0091] like Figure 8 The optical fiber shown in the figure has a flat end face of the second optical fiber group 335, each of which can be selectively coated with a high-transmittance film, and the core diameter is 0.1mm; similarly, by connecting a microlens array-type shaping cover 34 near the optical fiber output end, the parallel emission of the second optical fiber output laser is achieved. Figure 13As shown, the inner diameter of the circular tubular channel of the shaping cover 34 parallel to the axis direction of the second optical fiber is 1.5mm, and the outer diameter is 2mm; the curvature radius of the end face 341 of the microlens array on the shaping cover 34 close to the optical fiber output end and corresponding to the first optical fiber group in space is 1.55mm, and the end face 342 of the microlens array on the shaping cover 34 away from the output end and corresponding to the second optical fiber group in space is a plane, and the thickness from surface 1 to surface 2 is 0.5mm. And the distance between the main plane of the end face 341 of the shaping cover 34 and the main plane of the laser optical fiber output end is 1mm. The laser is transmitted into the first optical fiber group 334 by the beam splitting and coupling of the beam transmission and control module 2, and is guided by the main conduit 32. The laser is totally reflected inside the first optical fiber, and the concave end face of the first optical fiber group 334 and the microlens array end face 341 of the shaping cover 34 correspond to a combined lens group of positive lenses, so that the 1064nm laser is emitted in parallel; the laser is transmitted into the second optical fiber group 335 by the beam splitting and coupling of the beam transmission and control module 2, and is guided by the main conduit 32. The laser is totally reflected inside the second optical fiber group, and is refracted at the curved end face of each second optical fiber, and finally the 532nm laser beam is focused and emitted at a distance of about 1mm from the end face 342 through the microlens array end face 342 of the shaping cover 34.

[0092] By adjusting the corresponding curvature radius of the first and second optical fibers and the microlens array, the divergence angle along the optical axis is achieved. And macro adjustment of the focus spot diameter.

[0093] According to clinical needs, this embodiment can achieve the following Figure 14 Laser output shown:

[0094] Solution 1: The medical laser source module 1 outputs a continuously adjustable laser with a wavelength of 1064 nm and an average power of 1 to 50 W, and is coupled into the optical fiber bundle 33 of the multi-directionally adjustable optical fiber module 3 through the beam transmission and control module 2, and finally realizes parallel emission. The laser deflection angle can be accurately adjusted according to the feedback signal provided by the detection module 4, and large-area laser efficient ablation surgery, such as nodule ablation, can be performed on large-volume diseased tissues.

[0095] Solution 2: The medical laser source module 1 outputs a pulsed operation of 532nm, a pulse width of 20ns, a maximum average power of 5W, and a repetition frequency of 100Hz, and is coupled into the optical fiber bundle 33 of the multi-directional adjustable optical fiber module 3 through the beam transmission and control module 2, and finally achieves focused emission. The laser deflection angle can be accurately adjusted according to the feedback signal of the detection module 4, and fine laser surgery can be performed on tiny lesion areas, such as diabetic retinal photocoagulation.

[0096] Embodiment 2:

[0097] like Figure 1As shown, the present invention provides another multi-wavelength and three-dimensional steering laser scalpel optical fiber device, the structure of which is basically the same as that of the first embodiment, except that:

[0098] The medical laser source module 1 contains two solid-state lasers, which provide laser energy input for the entire system. They are Er:YAG lasers, pulsed operation, and output laser wavelength of 2.94 , repetition frequency 100Hz, pulse width 20ns, maximum average power 10W; GaA1As semiconductor laser, continuous operation, output laser wavelength 650nm, average power 0~5W.

[0099] The traction module of the optical fiber fine-tuning controller 31 includes a plurality of induction strips, which are fixed to the outer side of the optical fiber cladding. The control module includes a first power button 311 and a second power button 312, which are respectively connected to different induction strips. The induction strips are composed of a thin layer of shape memory polymer, which can realize the expansion and contraction transformation of the output laser along the axial transmission direction or the fine adjustment of the radial deflection angle. The outer layer of the shape memory polymer induction strip is composed of a liquid crystal elastomer similar to the muscle fiber structure of a human, such as Figure 15 The figure shows the structure of the output end of the optical fiber. The liquid crystal elastomer 313 will shrink and deform when heated. After cooling, the liquid crystal elastomer can restore its original arrangement, that is, the macroscopic deformation is restored. The deformation range can reach 400%. A layer of temperature-controlled resistance wire is wrapped around the outer layer of the liquid crystal elastomer and connected to the Figure 16 The first power button 311 and the second power button 312 of the optical fiber fine-tuning controller 31 are shown. According to the relationship between current-temperature-deformation, the first power button 311 and the second power button 312 that control the current level control the temperature rise of the resistance wire to achieve heating of the liquid crystal elastic body 313, and achieve the deflection angle β of the optical fiber output end and the expansion and contraction change Δz along the transmission direction. At the same time, the detection module 4 can feedback the deflection angle and expansion and contraction change amount of the optical fiber fine-tuning controller 31 corresponding to the temperature rise until the expected value is met.

[0100] like Figure 17 The cross-sectional view of the optical fiber output end shown in the figure shows that the first optical fiber group 334 is composed of an optical fiber with a core diameter of 0.1 mm, a cladding diameter of 0.13 mm, and a spherical concave optical fiber output end surface, which can achieve macroscopic The laser divergence angle output is changed, and the irradiation spot changes with the irradiation distance; the second optical fiber group 335 is composed of six optical fibers with flat end faces as optical fiber output ends, and the core diameter is 0.1mm, realizing laser Gaussian distribution output.

[0101] According to clinical needs, this embodiment can achieve:

[0102] Solution 1: The medical laser source module 1 outputs a pulsed 650nm, 10W continuously adjustable infrared laser, which is coupled into the optical fiber bundle 33 of the multi-directional adjustable optical fiber module 3 through the beam transmission and control module 2, and finally realizes large-area divergent emission. The laser deflection angle can be accurately adjusted according to the feedback signal provided by the detection module 4, and a large area of ​​​​diseased tissue can be irradiated with laser on a large scale, such as eliminating inflammation and promoting local blood metabolism.

[0103] Solution 2: Medical laser source module 1 outputs pulsed operation of 2.94 , pulse width 20ns, maximum average power 10W, repetition frequency 100Hz, and coupled into the optical fiber bundle 33 of the multi-directional adjustable optical fiber module 3 through the beam transmission and control module 2, and finally Gaussian pulse emission is realized. The laser deflection angle can be accurately adjusted according to the feedback signal of the detection module 4, and fine laser surgery can be performed on tiny lesion areas, such as laser scalpel resection, tooth treatment, etc.

Claims

1. A multi-wavelength and three-dimensional steering laser scalpel optical fiber device, It is characterized in that include: Master control module, medical laser source module, beam transmission and control module, multi-directional adjustable optical fiber module and detection module; A medical laser source module, comprising at least one laser for generating different lasers; A beam transmission and control module receives laser input from the medical laser source module, filters, splits and combines the laser light, and couples the selected laser light into the input end of the multi-directional adjustable optical fiber module; A multi-directional adjustable optical fiber module, comprising an optical fiber fine-tuning controller, a main conduit, an optical fiber bundle and a shaping cover; the optical fiber fine-tuning controller is connected to the optical fiber bundle, and is used to adjust the expansion and contraction of the optical fiber bundle in the length direction and the deflection angle of the optical fiber bundle; the optical fiber fine-tuning controller comprises a control module and a traction module, the traction module is fixed to the outside of the optical fiber cladding, and the control module is used to apply an application amount to the traction module to drive the optical fiber output end to deflect at an angle or expand and contract the length along the axial direction of the optical fiber; the main conduit is a hollow structure, having a first end and a second end arranged oppositely, and the main conduit is divided into at least two areas; the optical fiber bundle is arranged in the main conduit The optical fiber bundle is arranged in a main conduit, and the output end of the optical fiber bundle extends out of the first end of the main conduit, the optical fiber bundle includes a plurality of optical fiber groups with different functions, each optical fiber group includes at least one optical fiber, the optical fibers of different groups are arranged in the main conduit according to a certain rule, the optical fiber groups with different functions are arranged in different areas of the main conduit, and the end face of the output end of the optical fiber bundle includes at least two of an inclined surface, a curved surface and a plane; a shaping cover is arranged at the output end of the optical fiber bundle, the output end of the optical fiber bundle is located in the shaping cover, the shaping cover is connected to the first end of the main conduit, and a plurality of microlens arrays are arranged on the inner wall of the shaping cover for shaping the laser emitted by the optical fiber bundle; A detection module, used for detecting parameters of the optical fiber fine-tuning controller and sending the parameters to the master control module; The master control module is used to receive the parameters of the detection module and adjust the application amount of the optical fiber fine-tuning controller on the light beam according to the parameters until the target preset value is met.

2. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to claim 1, It is characterized in that The traction module includes a plurality of traction wires, and the traction wires are fixed to the outer side of the cladding of the optical fiber; The control module includes a first adjustment key and a second adjustment key, and the first adjustment key and the second adjustment key are respectively connected to different traction wires. By rotating the first adjustment key, stress is applied to the traction wire connected to it to drive the angle of the optical fiber output end to deflect. By moving the second adjustment key, stress is applied to the traction wire connected to it to drive the length of the optical fiber output end to expand and contract along the axial direction of the optical fiber.

3. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to claim 1, It is characterized in that The pulling module includes a plurality of sensing strips, and the sensing strips are fixed to the outside of the cladding of the optical fiber; The control module includes a first power button and a second power button, which are respectively connected to different sensor strips. The deformation of the sensor strips is controlled by controlling the amount of electricity applied by the first power button and the second power button, so as to drive the optical fiber output end to deflect in angle or extend in length along the axial direction of the optical fiber.

4. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to claim 1, It is characterized in that For an optical fiber with a beveled end face at the output end, the laser is output from the long side wall of the optical fiber, and the angle α between the output light and the axis of the main conduit along the second end pointing to the first end satisfies: 0°<α<90°; for an optical fiber with a beveled end face at the output end, its beveled end face is 30°~70° with the axial direction.

5. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to claim 1, It is characterized in that The output end face includes a curved surface, and the curvature radii of the curved surfaces of different optical fibers are the same or different.

6. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to claim 1, It is characterized in that The optical fiber bundle includes a first optical fiber group having a first function, a second optical fiber group having a second function, and a third optical fiber group having a third function, wherein the first optical fiber group includes at least one first optical fiber, the second optical fiber group includes at least one second optical fiber, and the third optical fiber group includes at least one third optical fiber, the end face of the output end of the first optical fiber is a bevel, the end face of the output end of the second optical fiber is a curved surface, and the end face of the output end of the third optical fiber is a plane; The main conduit is divided into three areas from the inner wall to the center, namely the first area, the second area and the third area, wherein the first optical fiber and the second optical fiber are arranged alternately in the first area, the third optical fiber is arranged in sequence in the second area, and a second optical fiber is included in the third area.

7. The multi-wavelength and three-dimensional steering laser surgical knife optical fiber device according to any one of claims 1 to 6, It is characterized in that The master control module is provided with a database, and the database stores the correspondence between the extension and deflection angles in the length direction of the optical fiber bundle and the applied amount.

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