Type-recognizable treatment optical fiber and laser treatment system

Abstract

The invention provides a treatment optical fiber capable of identifying types and a laser treatment system, a feedback structure is arranged in the treatment optical fiber, and a specific feedback signal can be given to input detection light so as to identify the treatment optical fiber; the treatment fiber is also capable of transmitting treatment light for performing treatment. The feedback structure is arranged in the optical fiber, so that a specific feedback signal can be given to the input detection light, the specific optical fiber can be automatically, efficiently and accurately identified, whether the optical fiber is suitable for the current laser equipment or not is further determined, the verification efficiency is improved, the workload of doctors is reduced, the optical fiber can normally output treatment light, and the treatment effect is improved. And the treatment function of the optical fiber is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an optical fiber and laser treatment system with identifiable types. Background Art

[0002] Lasers are widely used in the medical industry, such as skin beauty (such as laser liposuction, laser spot removal), laser lithotripsy (such as holmium laser lithotripsy), resection (such as prostatectomy), ablation (such as laser interstitial thermal therapy), and tissue burning.

[0003] Optical fiber is a key component for transmitting lasers or treating lesions. The use of optical fiber is directly related to surgical safety. Currently, the appearance of some optical fibers is very similar. Doctors usually need to manually identify the fiber type, query the fiber properties, and confirm whether it matches the laser equipment. This identification process is inefficient and has a high risk of misidentification. It can also easily cause medical accidents when optical fiber is used incorrectly.

[0004] To this end, the present invention provides an optical fiber and laser treatment system with identifiable types. Summary of the invention

[0005] The present invention provides an optical fiber and a laser treatment system with identifiable types, which are used to solve the defects of the prior art that the optical fiber is difficult to identify and the risk of misidentification is high.

[0006] The present invention provides a therapeutic optical fiber of an identifiable type, wherein a feedback structure is provided in the therapeutic optical fiber, which can give a specific feedback signal to the input detection light so as to identify the therapeutic optical fiber;

[0007] The therapeutic optical fiber can also transmit therapeutic light for performing treatment.

[0008] According to an identifiable type of optical fiber provided by the present invention, the feedback structure is capable of reflecting a specific wavelength range of the detection light;

[0009] Alternatively, the feedback structure can reflect the input detection light with a specific reflectivity.

[0010] According to an identifiable type of optical fiber provided by the present invention, the therapeutic optical fiber is provided with the feedback structure in series to form a specific combination;

[0011] Each feedback structure can reflect detection light in different wavelength ranges, and the transmission wavelength range of each feedback structure can cover at least a part of the reflection wavelength range of each feedback structure at its far end side.

[0012] According to an identifiable type of optical fiber provided by the present invention, the feedback structure is arranged at any of the following positions of the therapeutic optical fiber: optical fiber connector, optical fiber incident end face, transmission section, optical fiber exit end face or optical fiber side wall.

[0013] According to an identifiable type of optical fiber provided by the present invention, the therapeutic optical fiber is a multi-core optical fiber, wherein at least one core is provided with the feedback structure.

[0014] According to an identifiable type of optical fiber provided by the present invention, the therapeutic optical fiber includes the feedback structures arranged in parallel, and each feedback structure forms a specific combination for identifying the therapeutic optical fiber according to a given feedback signal combination.

[0015] According to an optical fiber of an identifiable type provided by the present invention, each feedback structure arranged in parallel can provide feedback signals of different wavelength ranges to the input detection light.

[0016] According to an identifiable type of optical fiber provided by the present invention, each feedback structure arranged in parallel can provide a feedback signal in the same wavelength range to the input detection light, and each feedback structure forms the specific combination in combination with its setting position.

[0017] According to an identifiable type of optical fiber provided by the present invention, the therapeutic optical fiber includes at least two parallel cores, a feedback structure may or may not be set in each core, and a feedback structure is set in at least one core, and each feedback structure can reflect detection light in a corresponding wavelength range and transmit therapeutic light.

[0018] According to an identifiable type of optical fiber provided by the present invention, each feedback structure is selected from any one of the following: a fluorescent transparent structure, a semi-transparent and semi-reflective film, a dichroic film, a narrow-band reflective film, a fiber grating, and an anti-reflection film.

[0019] According to an identifiable type of optical fiber provided by the present invention, the therapeutic optical fiber includes a therapeutic core and at least two detection units, the therapeutic core is used to transmit therapeutic light, and each detection unit may or may not be provided with a feedback structure to form the specific combination.

[0020] According to an identifiable type of optical fiber provided by the present invention, each feedback structure is selected from any of the following: a reflective film, a fluorescent structure, a semi-transparent and semi-reflective film, a dichroic film, a narrow-band reflective film, a fiber grating, and an anti-reflection film.

[0021] The present invention also provides a laser treatment system, comprising:

[0022] A detection light generating module is used to generate detection light and output it to the connected optical fiber;

[0023] A therapeutic light generating module, used to generate therapeutic light and output it to the connected optical fiber;

[0024] A detection module, used for detecting a feedback signal received by the optical fiber interface;

[0025] A processing module, used for identifying the type of the connected optical fiber according to the detection result of the feedback signal by the detection module;

[0026] Among them, various types of optical fibers adapted to the laser treatment system are respectively provided with feedback structures, and the feedback structures of various types of optical fibers can give different feedback signals to the input detection light.

[0027] According to a laser treatment system provided by the present invention, the detection light generating module is used to generate single wavelength light, or to generate detection light of different wavelength combinations, or to generate range light including one or more wavelength bands.

[0028] According to a laser treatment system provided by the present invention, the detection module is a spectrometer or a wavelength division multiplexer or an optical power detector.

[0029] According to a laser treatment system provided by the present invention, the treatment light generating module is a laser with adjustable wavelength, or the treatment light generating module includes multiple ones to generate treatment lights of different wavelengths.

[0030] According to a laser treatment system provided by the present invention, the processing module is configured as follows:

[0031] Determine the type of currently connected optical fiber according to the optical signal detected by the detection module and the preset correspondence between the treatment optical fiber and the feedback signal;

[0032] If the currently connected optical fiber type does not conform to the target optical fiber type, a prompt message is output and / or the therapeutic light generating module is prevented from outputting therapeutic light and / or the currently connected optical fiber is ejected.

[0033] The optical fiber and laser treatment system with identifiable types provided by the present invention has at least the following beneficial effects:

[0034] 1. By setting up the feedback structure on the optical fiber, a specific feedback signal can be given to the input detection light, based on which the optical fiber type can be automatically, efficiently and accurately identified, and then it can be determined whether the optical fiber is suitable for the current laser equipment, which improves the verification efficiency and reduces the workload of doctors.

[0035] 2. Provide various forms of feedback structures (reflective film, fluorescent structure, semi-transparent and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, anti-reflection film) to meet the differentiated cost and quality requirements for therapeutic optical fibers.

[0036] 3. Provide multiple solutions for optical fiber identification: ① Set different single feedback structures in different optical fibers; ② Set different feedback structure combinations in series in different optical fibers; ③ Set different feedback structure combinations in parallel in different optical fibers. It can support the identification of different numbers of optical fibers, making the products more diversified.

[0037] 4. Provide a variety of laser treatment system solutions, such as a laser-type detection light generating module combined with a power detection type detection module, or a range light generating module combined with a spectrometer or a wavelength division multiplexer type detection module. At the same time, a variety of range light source forms are provided to meet different performance and cost requirements.

[0038] 5. The therapeutic light generating module can emit therapeutic light of multiple wavelengths, providing doctors with more treatment methods and helping to optimize surgical results.

[0039] 6. Combined with the specific surgical plan, it automatically emits detection light of the corresponding wavelength to identify the target optical fiber or the specific optical fiber type, further improving the safety of the operation and the level of intelligence.

[0040] 7. In the event of an abnormal reflected light signal (optical fiber type), it will automatically issue a prompt and stop the treatment light from being emitted or the connected optical fiber from being ejected, making it convenient for doctors to correct the optical fiber and ensure the safety of the operation.

[0041] 8. The feedback structure is physically bound as part of the therapeutic optical fiber and cannot be tampered with. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is one of the structural schematic diagrams of the identifiable types of therapeutic optical fibers provided by the present invention;

[0044] Figure 2 This is the second structural schematic diagram of the identifiable type of therapeutic optical fiber provided by the present invention;

[0045] Figure 3 This is the third structural schematic diagram of the identifiable type of therapeutic optical fiber provided by the present invention;

[0046] Figure 4 This is the fourth structural schematic diagram of the identifiable type of therapeutic optical fiber provided by the present invention;

[0047] Figure 5 It is one of the schematic diagrams of the cross-sectional structure of the identifiable type of therapeutic optical fiber provided by the present invention;

[0048] Figure 6 This is the second schematic diagram of the cross-sectional structure of the identifiable type of therapeutic optical fiber provided by the present invention;

[0049] Figure 7 It is one of the schematic diagrams of the cross-sectional structure of the identifiable type of treatment optical fiber connector provided by the present invention;

[0050] Figure 8 This is the third schematic diagram of the cross-sectional structure of the identifiable type of therapeutic optical fiber provided by the present invention;

[0051] Fig. 9 This is one of the structural schematic diagrams of a laser treatment system provided by the present invention;

[0052] Fig.10 This is the second structural schematic diagram of a laser treatment system provided by the present invention. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0054] Combine the following Figure 1-Figure 10 An identifiable type of optical fiber and laser therapy system of the present invention is described.

[0055] Figure 1 is a schematic diagram of a quick matching treatment optical fiber provided by the present invention, such as Figure 1 As shown, a feedback structure 701 is provided in the treatment optical fiber 70, and the feedback structure 701 can give a specific feedback signal to the input detection light so as to identify the treatment optical fiber; the treatment optical fiber can also transmit the treatment light for performing treatment.

[0056] It is understandable that specific structures are set for one or more types of optical fibers in advance during the product design phase. Different types of optical fibers have different feedback structures and can give different feedback signals (i.e., specific feedback signals) to the input detection light. After the optical fiber is connected, by inputting the detection light and identifying the feedback signal, the type of the connected optical fiber can be automatically, efficiently, and accurately identified to determine whether it is the desired target optical fiber.

[0057] The present invention provides a feedback structure in the optical fiber to give a specific feedback signal to the input detection light, and can automatically, efficiently and accurately identify the specific optical fiber, thereby determining whether the optical fiber is suitable for the current laser equipment, thereby improving the verification efficiency and reducing the workload of doctors. In addition, the optical fiber can also output therapeutic light normally, thereby ensuring the therapeutic function of the optical fiber.

[0058] It is understandable that the above describes the solution of the present invention from the perspective of "specific optical fibers". For a series of therapeutic optical fibers, a specific combination of feedback structures can be set for each type, and different types of therapeutic optical fibers have different combinations of feedback structures. Furthermore, different feedback structure combinations can be set for "each therapeutic optical fiber individual" in the same type of optical fiber, so as to further distinguish and identify different "therapeutic optical fiber individuals" (i.e., optical fiber types in a broad sense).

[0059] Based on the above embodiments, in one embodiment, the feedback structure 701 is capable of reflecting a specific wavelength range of the detection light;

[0060] Alternatively, the feedback structure 701 can reflect the input detection light with a specific reflectivity.

[0061] Specifically, the wavelength range can be a specific wavelength (i.e., a discrete single wavelength), such as 400nm, 450nm, 500nm, etc. The wavelength range can also be a continuous band, such as 300-320nm, 360-390nm, etc. Different therapeutic optical fibers are provided with different feedback structures, which can reflect detection light of different wavelengths or bands (i.e., wavelength ranges), and the specific optical fiber type can be identified according to the wavelength range of the feedback signal.

[0062] Alternatively, different feedback structures are provided in different treatment optical fibers, which can reflect the input detection light at different reflectivities. For example, the feedback structures in various treatment optical fibers reflect the input detection light at reflectivities of 20%, 30%, 40%, 50%, 65%, 80%, etc., respectively. Different types of optical fibers can be identified by detecting the intensity of the feedback signal.

[0063] This embodiment provides two types of feedback structures to meet different cost and performance requirements for therapeutic optical fibers.

[0064] Based on any embodiment, in one embodiment, the feedback structure is disposed at any of the following positions of the treatment optical fiber: an optical fiber joint, an optical fiber incident end face, a transmission section, an optical fiber exit end face, or an optical fiber side wall.

[0065] Specifically, in some usage scenarios, the laser is emitted from the end face of the optical fiber. Figure 1 At this time, the feedback structure 701 can be set on the end face of the optical fiber input end face, referring to Figure 2 The feedback structure 701 can also be set at any position on the optical fiber transmission segment. Of course, the feedback structure 701 can also be set at the optical fiber output end face.

[0066] For some special use scenarios (such as laser ablation scenarios), the laser is emitted laterally along the optical fiber (or emitted laterally in a divergent manner). In this case, the feedback structure 701 can also be set at the position where the laser is emitted on the side wall of the optical fiber. Figure 3 In the laser ablation scenario, the distal end of the treatment optical fiber 70 is the ablation tip ( Figure 3 The reflective ablation tip is shown in FIG. 1 , and the feedback structure 701 is configured to at least partially cover the light emitting portion of the reflective ablation tip. Figure 3 Only the directional reflection ablation tip is illustrated, and the reflection surface can also be any other shape (such as a conical surface) to change the reflection direction. Accordingly, the coating position of the feedback structure needs to be adaptively adjusted. The ablation tip can also be a scattering ablation tip, which is doped with scattering particles for scattering the laser to the surroundings. The feedback structure 701 can be at least partially coated on the side wall of the scattering ablation tip, and cooperate with the scattering particles to transmit the detection light signal back to the optical fiber input end. Of course, the feedback structure 701 of the laser ablation optical fiber can also be set in the optical fiber transmission section, or at the optical fiber input end.

[0067] Generally, the treatment optical fiber includes an optical fiber connector, which is connected to the laser device through the optical fiber connector to obtain laser light, so the feedback structure 701 can also be set on the optical fiber connector. After the optical fiber connector is connected to the optical fiber interface, the detection light output by the laser treatment system is directly received by the feedback structure in the optical fiber connector, and the laser treatment system detects the feedback signal to identify the type of the connected optical fiber.

[0068] It is understandable that due to the influence of factors such as fiber loss, impurity scattering, fiber cracks / breaks, etc., the farther the feedback structure is set, the higher the possibility that its feedback signal will be interfered with (the lower the signal strength). Therefore, the closer the position of each feedback structure is to the fiber incident end face, the better, so as to improve the accuracy of detecting the feedback structure. Preferably, each feedback structure is set in the 1 / 2 section close to the fiber incident end face.

[0069] Based on any of the embodiments, in one embodiment, the therapeutic optical fiber is provided in series with a feedback structure to form a specific combination;

[0070] Each feedback structure can reflect detection light in different wavelength ranges, and the transmission wavelength range of each feedback structure can cover at least a part of the reflection wavelength range of each feedback structure at its far end side.

[0071] Specifically, refer to Figure 4Different feedback structures are arranged in series on the optical path of the treatment optical fiber 70 to form a specific combination, specifically including a first feedback structure 701, a second feedback structure 702 and a third feedback structure 703, each of which can reflect the input detection light. Each feedback structure can reflect detection light of a different wavelength range, for example, the first feedback structure 701 can reflect 400nm detection light, the second feedback structure 702 can reflect 460nm detection light, and the third feedback structure 703 can reflect 520nm detection light.

[0072] The feedback structures 701, 702, and 703 with different reflection wavelength ranges form a specific combination, which can give a corresponding combination of feedback signals to the detection light input to the treatment optical fiber 70, so as to facilitate the identification of the type of the treatment optical fiber 70 by detecting the "feedback signal combination". The transmission wavelength range of each feedback structure can cover at least part of the reflection wavelength range of each feedback structure on its distal side, so that the detection light corresponding to the reflection band (or part of the reflection band) can pass through each feedback structure at the proximal end and reach the feedback structure smoothly, so that the feedback structure obtains enough "input", and then the reflected detection light can transmit the detection signal again in the reverse direction of the original optical path. Transmission means that the feedback structure has a transmittance of not less than 80% for other wavelengths of non-reflection light, such as 80%, 85%, 90%, 92%, 95%, 97%, etc. Preferably, the transmittance is not less than 98%.

[0073] This embodiment sets different feedback structures in series on the optical path of the treatment optical fiber. When in use, detection light is input into the optical fiber to efficiently detect the feedback structure combination in the treatment optical fiber, thereby judging the type of optical fiber and determining whether the currently connected treatment optical fiber matches the treatment equipment, thereby improving the optical fiber matching efficiency.

[0074] Based on any embodiment, in one embodiment, the therapeutic optical fiber 70 is a multi-core optical fiber, and at least one core is provided with a feedback structure or a feedback structure is provided in series, for example, a feedback structure is provided in one core, two cores or more cores, so that the multi-core optical fiber can give a feedback signal to the input detection light, which is used to detect and identify the type of the optical fiber.

[0075] Based on any embodiment, in one embodiment, each feedback structure is selected from any of the following: fluorescent transparent structure, semi-transparent and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, anti-reflective film, that is, the feedback structure includes one or more of one or more of these types.

[0076] Specifically, the feedback structure can be a fluorescent transparent structure, which contains fluorescent substances and can generate light of another wavelength under the irradiation of excitation light. By detecting the light emitted by the fluorescent substances, the specific fluorescent structure can be distinguished and identified for identifying the optical fiber, and the transparent material is used to allow the therapeutic light to pass through. Furthermore, a fluorescent transparent structure with an excitation wavelength shorter than the wavelength of the therapeutic light is selected to avoid the therapeutic light from stimulating fluorescence.

[0077] The feedback structure can also be a semi-transparent and semi-reflective film. The semi-transparent and semi-reflective film is an optical structure whose reflectivity and transmittance can be adjusted through the process. For example, the reflectivity of the feedback structure in a therapeutic optical fiber is 15%, and the transmittance is 85%. For another example, the reflectivity of the feedback structure in another therapeutic optical fiber is 30%, and the transmittance is 70%.

[0078] The feedback structure can also be a dichroic film, which is a structure with a filter film on one side and an anti-reflection film on the other side. The structure has high transmittance to light below the cut-off wavelength and high reflectivity to light above the cut-off wavelength, or has high transmittance to light above the cut-off wavelength and high reflectivity to light below the cut-off wavelength.

[0079] The feedback structure can also be a narrow-band reflective film. The narrow-band reflective film is a multilayer film composed of one or more materials. The thickness and refractive index of each layer are different. The narrow-band reflective film can cause light of a specific wavelength to interfere between the film layers, thereby achieving selective reflection of light in a specific wavelength range.

[0080] The feedback structure can also be a fiber Bragg grating, which is a new type of optical structure. It uses the photosensitivity of the optical fiber material (the interaction between external incident photons and the material in the fiber core causes a permanent change in the refractive index) to establish a layer structure in the optical fiber with a periodic distribution of the refractive index in space (i.e., a spatial phase grating), thereby changing / controlling the propagation behavior of light in the optical fiber. The reflection wavelength of the fiber Bragg grating is related to the thickness of the layer structure, so the fiber Bragg grating can reflect the detection light signal of a specific wavelength.

[0081] The feedback structure can also be an anti-reflection film, which contains alternating dielectric layers of the same thickness. It uses the interference of light between layers to achieve high reflectivity for light of a specific wavelength. The thickness of the anti-reflection film is related to the reflection wavelength. The more layers there are, the higher the reflectivity.

[0082] It is understandable that the feedback structure in the form of a semi-transparent and semi-reflective film, a fluorescent transparent structure, an anti-reflective film, a narrow-band reflective film, and a dichroic film is preferably arranged on the end face or periphery of the optical fiber, and the feedback structure in the form of a fiber grating is preferably arranged in the laser transmission section to reduce the difficulty of processing. Of course, the feedback structure in the form of a semi-transparent and semi-reflective film, a fluorescent transparent structure, an anti-reflective film, a narrow-band reflective film, and a dichroic film can also be arranged in the optical fiber transmission section, for example, the above structure is formed on the end face of a section of optical fiber, and then fused with another section of optical fiber to form an integrated optical fiber.

[0083] Based on any of the embodiments, in one embodiment, the treatment optical fiber includes feedback structures arranged in parallel, and each feedback structure forms a specific combination for identifying the treatment optical fiber according to a given feedback signal combination.

[0084] Specifically, refer to Figure 5 The treatment optical fiber 70 includes a feedback structure ( Figure 5 Feedback structures 701, 702, 703, and 704 are illustrated, and each feedback structure forms a specific combination. Since each feedback structure can generate a corresponding feedback signal for the input detection light, the specific "feedback structure combination" also corresponds to a specific "feedback signal combination". The therapeutic device can determine the "feedback structure combination" present in the optical fiber based on the detected "feedback signal combination", and thereby determine whether the therapeutic optical fiber 70 meets the use requirements of the therapeutic device. The therapeutic optical fiber 70 can also transmit therapeutic light for performing treatment. It can be understood that the above describes a "specific optical fiber", and for a series of therapeutic optical fibers, each type of optical fiber has its own specific combination of feedback structures, or, further, different individuals in the same category also each have a specific feedback structure combination, to further distinguish and identify different "therapeutic optical fiber individuals".

[0085] This embodiment arranges different feedback structures in parallel in the treatment optical fiber. When in use, detection light is input into the optical fiber to efficiently detect the feedback structure combination in the treatment optical fiber, and then the optical fiber type is determined to determine whether the currently connected treatment optical fiber matches the treatment equipment, thereby improving the optical fiber matching efficiency and reducing the workload of doctors.

[0086] Based on the previous embodiment, in one embodiment, each feedback structure arranged in parallel can generate feedback signals in different wavelength ranges.

[0087] Specifically, the "wavelength range" here can refer to a single wavelength or one or more wavelength bands. For example, Figure 5The feedback structure 701 can give a feedback signal of 560nm wavelength for the input detection light, the feedback structure 702 can give a feedback signal of 580-600nm wavelength, the feedback structure 703 can give a feedback signal of 620-650nm wavelength, and the feedback structure 704 can give a feedback signal of 660nm wavelength. The feedback signals generated by each feedback structure are in different wavelength ranges, which is convenient for determining the "feedback structure combination" in the optical fiber through wavelength detection. Furthermore, the therapeutic optical fiber can also be identified in combination with the setting position of the feedback structure. For example, the feedback structure at three positions can give reflected light of "350nm, 380nm, 420nm" in turn, and the same three positions of another optical fiber are set to "350nm, 420nm, 380nm" in turn. The two constitute different feedback structure combinations, indicating different optical fibers.

[0088] In this embodiment, feedback structures are arranged in parallel in the optical fiber, and each feedback structure generates feedback signals in different wavelength ranges to form a specific combination, thereby improving the matching efficiency of the treatment optical fiber.

[0089] Based on the previous embodiment, in one embodiment, each feedback structure arranged in parallel can generate feedback signals in the same wavelength range, and each feedback structure forms a specific combination in combination with its arrangement position.

[0090] For example, Figure 5 A therapeutic optical fiber with a feedback structure combination is shown, wherein feedback structures 701, 702, 703, and 704 are arranged at four positions, and these four detection structures can give the same feedback signal to the input detection light, such as reflecting the same wavelength range, and for example reflecting the detection light with the same reflectivity; Figure 6 Another therapeutic optical fiber with a feedback structure combination is shown, which has feedback structures 701, 703, and 704 only at three locations. The feedback signals generated by each feedback structure in the two therapeutic optical fibers are the same, but the feedback structures are set at different locations, forming different "feedback structure combinations". After the above therapeutic optical fiber is connected to the therapeutic device, the therapeutic device can determine the specific "feedback structure combination" in the optical fiber according to the feedback signal and the location source of the feedback signal, thereby determining the type of optical fiber and judging whether the optical fiber meets the use requirements of the therapeutic device.

[0091] In this embodiment, feedback structures are arranged in parallel in the optical fiber. Each feedback structure generates a feedback signal in the same wavelength range and forms a specific combination in combination with the setting position of the feedback structure. This makes it easy to determine whether the connected optical fiber meets the use requirements of the treatment equipment. In addition, setting the same feedback structure also reduces the difficulty of manufacturing the treatment optical fiber.

[0092] Based on any embodiment, in one embodiment, the therapeutic optical fiber 70 includes at least two parallel cores, a feedback structure may or may not be provided in each core, and a feedback structure is provided in at least one core, and each feedback structure can reflect detection light in a corresponding wavelength range and transmit therapeutic light.

[0093] Specifically,,refer to Figure 7 The treatment optical fiber 70 may be a multi-core optical fiber (including at least two parallel cores). Figure 7 The therapeutic optical fiber 70 shown includes five parallel cores 710, 720, 730, 740, and 790. A feedback structure may or may not be provided in each core to form a specific "feedback structure combination" to facilitate the determination of the type of the therapeutic optical fiber 70. In addition, each feedback structure can not only give a feedback signal to the input detection light, but also transmit the therapeutic light to avoid interfering with the laser treatment process. It can be understood that a feedback structure is provided in at least one core of the multi-core optical fiber to distinguish it from an ordinary optical fiber and ensure that the type of optical fiber can be determined. With reference to the embodiments described above, the position of the feedback structure in each core can be flexibly selected, for example, it can be provided at the optical fiber incident end face, transmission section, optical fiber exit end face, and other positions of the core. For some special application scenarios (such as laser ablation scenarios), the feedback structure can also be provided on the side wall of the core.

[0094] It is understandable that due to the influence of factors such as fiber loss, impurity scattering, fiber cracks / breaks, etc., the farther the feedback structure is set, the higher the possibility that its reflected signal will be disturbed (the lower the signal strength). Therefore, the closer the position of each feedback structure is to the fiber incident end face, the better, so as to improve the accuracy of detecting the "feedback structure combination". Preferably, each feedback structure is set within 1 / 2 of the treatment fiber close to the fiber incident end face.

[0095] Further, in the above embodiment, each feedback structure is selected from any of the following: fluorescent transparent structure, semi-transparent and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, and anti-reflective film. That is, the feedback structure includes one or more of one or more of these types. The working principle of each structure can be referred to above and will not be repeated here.

[0096] Based on any embodiment, in one embodiment, the treatment optical fiber 70 includes a treatment fiber core and at least two detection units, the treatment fiber core is used to transmit treatment light, and each detection unit may or may not be provided with a feedback structure to form a specific combination.

[0097] Specifically, refer to Figure 7The treatment optical fiber 70 includes a treatment fiber core and a plurality of detection units. The treatment fiber core 790 is dedicated to transmitting treatment light so as to perform laser treatment. The plurality of detection units 710, 720, 730, 740, 750, and 760 are arranged in parallel with the treatment fiber core 790. Each detection unit may or may not be provided with a feedback structure to form a "feedback structure combination". Further, each detection unit may be provided with different feedback structures to form a "feedback structure combination"; each detection unit may also be provided with the same feedback structure, and the feedback structure combined with its setting position forms a specific "feedback structure combination".

[0098] The location of each detection unit can be flexibly selected. For example, it can be set in the end face of the optical fiber connector / optical fiber connector, and arranged in parallel with the treatment fiber core 790; for example, referring to Figure 8 The detection unit is a plurality of optical fiber segments ( Figure 8 Four optical fiber segments 710, 720, 730, and 740 are shown in the figure. A feedback structure may or may not be set in each optical fiber segment. It can be understood that the optical fiber segment is not used to transmit therapeutic light. For example, the detection unit is a hole slot parallel to the therapeutic fiber core, and the feedback structure can be set in the hole slot to generate a feedback signal for the input detection light.

[0099] In this embodiment, the feedback structure is arranged in the detection unit parallel to the treatment fiber core, so that each feedback structure has no effect on the transmission of the treatment light. The process requirements of the feedback structure are also lower, which can reduce the production cost of the optical fiber. Furthermore, the treatment fiber core 790 can be a composite fiber core that can transmit laser in a branching manner to support more treatment operations.

[0100] Based on the above embodiment, in one embodiment, each feedback structure is selected from any of the following: reflective film, fluorescent structure, semi-transmissive and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, anti-reflective film. That is, each feedback structure can be selected from the above types of structures.

[0101] Specifically, the feedback structure can be a semi-transparent and semi-reflective film, a dichroic film, a narrow-band reflective film, a fiber grating, and an anti-reflection film. The relevant principle description can refer to the previous text and will not be repeated here. The feedback structure can also be a reflective film. The reflective film can reflect light of all bands, that is, the reflective film can give feedback signals to detection light of all wavelengths. Therefore, a specific "feedback structure combination" can be formed in combination with the setting position of the reflective film. In addition, reflective films with different reflectivity can be made through processes. After the detection light is input, the reflective film can be distinguished by detecting the intensity of the feedback signal (or detecting the power, the two can be equivalently converted) to determine the "feedback structure combination" in the optical fiber, and then determine whether the connected therapeutic optical fiber meets the use requirements of the therapeutic equipment. It can be understood that the use of feedback structures with different rates can reduce the product cost of the therapeutic optical fiber and can support the matching of more types of therapeutic optical fibers.

[0102] The feedback structure may also be a fluorescent structure, which contains fluorescent substances and can generate light of another wavelength band under the irradiation of excitation light. Different fluorescent structures can be distinguished by detecting the light emitted by the fluorescent substances.

[0103] Based on any embodiment, in one embodiment, when no feedback structure is provided, the detection unit absorbs the detection light through the absorption structure, and / or releases the detection light through the release structure.

[0104] Absorption structures such as light absorbing materials, such as BZH light cutoff agent, polyethylene, polypropylene, europium oxide, etc. BZH light cutoff agent can absorb visible light and transmit infrared light. Polyethylene and polypropylene have strong absorption capacity in the ultraviolet and infrared spectral regions. Europium oxide has high absorption for light in a special wavelength range. Light release structures such as through holes / optical fibers are used to release the detection light to other places to avoid reflecting the detection light and interfering with the detection process.

[0105] The present invention releases the detection light to other places by setting an absorption structure or a release structure, thereby preventing the detection light from interfering with the feedback signal and affecting the detection accuracy.

[0106] The present invention also provides an optical fiber set, including at least two therapeutic optical fibers, each of which is provided with a different feedback structure, and can give different feedback signals to the input detection light to identify the type of optical fiber connected, and each therapeutic optical fiber can also transmit therapeutic light so as to perform treatment using the therapeutic light. For example, the optical fiber set includes three optical fibers A, B, and C, each of which is provided with a feedback structure, and the three feedback structures are different; for another example, the optical fiber set includes two optical fibers D and E, and two feedback structures are connected in series in the optical fiber D, and two feedback structures different from the optical fiber D are connected in series in the optical fiber E, that is, different feedback structure combinations are connected in series in the optical fibers D and E; for another example, the optical fiber set includes three optical fibers X, Y, and Z, and the three optical fibers are provided with feedback structures in parallel, and the types of feedback structures are different or the settings are different, forming different feedback structure combinations.

[0107] The present invention also provides a laser treatment system, the laser treatment system described below can be cross-referenced with the identifiable types of treatment optical fibers described above.

[0108] Reference Fig. 9 A laser treatment system provided by the present invention includes: a detection light generating module 10, a treatment light generator 20, a detection module 30 and a processing module 40.

[0109] A detection light generating module 10 is used to generate detection light and output it to the connected treatment optical fiber 70;

[0110] The therapeutic light generating module 20 is used to generate therapeutic light and output it to the connected therapeutic optical fiber 70;

[0111] A detection module 30, used to detect a feedback signal received by the optical fiber interface;

[0112] The processing module 40 is used to identify the type of the connected optical fiber according to the detection result of the detection module on the feedback signal;

[0113] Among them, various optical fibers adapted to the laser treatment system are respectively provided with feedback structures, and the feedback structures of various optical fibers can give different feedback signals to the input detection light.

[0114] Specifically, different types of optical fibers have different properties, such as manufacturer type, model, maximum transmission power, transmission power loss, allowable bending radius, allowable side pressure, operating temperature range, outer diameter, number of cores and other parameters. A series of treatment optical fibers are structurally designed in advance, and different feedback structures (or different feedback structure combinations) are set for different treatment optical fibers. Different feedback structures can generate different feedback signals for the input detection light. During use, the detection light generating module 10 is used to generate detection light and input it into the treatment optical fiber 70. The feedback structure in the treatment optical fiber 70 adapted to the laser treatment system can generate a specific feedback signal for the detection light. The detection module 30 receives the feedback signal of each feedback structure for identification, and sends the identified "feedback signal" to the processing module 40. The processing module 40 identifies the type of optical fiber connected in combination with the corresponding relationship between the feedback signal and the specific treatment optical fiber type, and then can determine whether it meets the use requirements of the laser treatment system and whether it meets the surgical requirements in combination with the properties of the optical fiber, so as to achieve fast and accurate matching.

[0115] For example, only one detection structure is provided for the A-type optical fiber, which can reflect the detection light of 280nm, and three detection structures are provided for the B-type optical fiber, which can respectively reflect the detection light of 390nm, 400-420nm, and 460-480nm, and two detection structures are provided for the C-type optical fiber, which can respectively reflect the detection light of 320-350nm and 390nm. After the detection light generating module 10 inputs the detection light, if the detection module 30 detects the feedback signal of the combination of (390nm, 400-420nm, 460-480nm), the processing module 40 confirms that the B-type optical fiber is connected according to the combination, and then reads its properties to determine whether it meets the use requirements of the treatment equipment or surgery. If the detected connected optical fiber is the target optical fiber that meets the use requirements, subsequent operations are allowed to be performed, such as inputting the treatment light into the treatment optical fiber through the treatment light generating module. When no feedback signal is detected, or an unknown feedback signal is received, it can be determined that an unknown optical fiber is connected, which is a mismatch.

[0116] For another example, the feedback structure of type A optical fiber can reflect 365nm detection light, the feedback structure of type B optical fiber can reflect 275nm detection light, and the feedback structure of type C optical fiber can reflect 323-345nm detection light. After the laser treatment system is connected to the optical fiber, the detection light generating module 10 generates detection light and inputs it into the optical fiber. If the detection module 30 detects a reflected light signal of 323-345nm, the processing module 40 confirms that the connected optical fiber is type C, and then reads its properties to determine whether it meets the use requirements of the treatment device or surgery. When no feedback signal is detected, or a feedback signal of an unknown combination is received, it can be determined that an unknown optical fiber is connected, which is a mismatch.

[0117] The present invention sets a feedback structure in the optical fiber product and uses a detection module to detect the wavelength of the reflected light signal, thereby efficiently and quickly identifying whether the currently connected optical fiber is the required target optical fiber, thereby improving the optical fiber identification efficiency and reducing the risk of misidentification.

[0118] Based on the previous embodiment, in one embodiment, the laser treatment system further includes a beam combining module 50 for combining the optical paths of the detection light and the treatment light, and outputting the combined light from the optical fiber interface to the connected optical fiber 60 .

[0119] Specifically, the beam combining module 50 (i.e., a beam combiner, also called a wave combiner) can combine different optical paths. A typical beam combiner structure is: a beam of light is transmitted through a thin film, and another beam of light is input and reflected on the other side of the thin film, and the reflected light and the aforementioned transmitted light are combined and output; a typical beam combiner structure is to combine multiple optical fibers into another optical fiber with a larger diameter, and directly combine the light beams of multiple branch optical fibers into the main optical fiber; the beam combining module can also be a wavelength division multiplexer, which can be a wavelength division multiplexer in the form of a prism dispersion type, a fused cone fiber type, a diffraction grating type, etc., for combining multiple wavelengths of light. The structure of more beam combiners can refer to the prior art, and this embodiment does not limit this.

[0120] It is understandable that "the detection light and the therapeutic photosynthetic beam share the same optical path" does not mean that the two exist at the same time. For example, the detection light can be output first, and after confirming the type of optical fiber connected, the detection light can be turned off and the therapeutic light can be output.

[0121] In this embodiment, the optical paths of the detection light and the therapeutic light are combined by a beam combiner, so that the detection light and the therapeutic light can share the same optical path, which can simplify the system structure.

[0122] Reference Fig.10 , based on any embodiment, in one embodiment, the system further includes:

[0123] The transceiver branch module 70 is used to obtain the reflected light and input it to the detection module 30.

[0124] Specifically, after the detection light is reflected by the feedback structure, its reflected light path overlaps with the outgoing light path of the detection light. The reflected light can be separated by the transceiver branch module 70 and output to the detection module 30 for detection. The detection module 30 can analyze the optical parameters of the reflected light, such as the wavelength / intensity of the reflected light, etc., for further determining the type of optical fiber. When determining the type of optical fiber, it is possible to determine whether the optical fiber is the target optical fiber based only on the wavelength, and it is also possible to determine based on the input detection light signal and the intensity of the reflected light signal. For example, the detection light generating module inputs the detection light of the first wavelength range, and the detection module detects a reflected light signal of sufficient intensity (to avoid noise interference). It is also possible to determine by combining the wavelength and intensity, thereby avoiding the interference of noise signals in identifying the type of optical fiber and improving the accuracy of the determination.

[0125] Based on any embodiment, in one embodiment, the detection light generating module 10 is used to generate single wavelength light, or to generate detection light with different wavelength combinations, or to generate range light including one or more wavelength bands.

[0126] Specifically, the detection light generating module 10 can be used only to generate a single-wavelength detection light. For example, different types of fluorescent films are arranged in parallel in the optical fiber, and the various fluorescent films generate fluorescence in different wavelength ranges under the excitation of the single-wavelength detection light. For another example, the same feedback structure is arranged in parallel at some positions of the optical fiber, and detection is performed by inputting a single-wavelength light. In this case, the detection light generating module 10 can be a fixed-wavelength laser or a tunable laser.

[0127] The detection light generating module 10 can also be used to generate detection light of different wavelength combinations, where different wavelength combinations refer to combinations formed by different single wavelengths. The detection light generating module 10 can include multiple fixed wavelength lasers, each laser generates a wavelength to form the combination. Of course, the detection light generating module 10 can also include one or more tunable lasers, and the tuned laser can adjust the output laser wavelength, so that detection light of different wavelength combinations can be output. Each wavelength can also be output in time-sharing as needed, or it can be output at the same time to form the above combination. As a further embodiment, the detection light generating module 10 and the treatment light generating module 20 can also use the same laser. After the tuned laser outputs the detection light to complete the optical fiber matching, it also outputs the treatment laser of the required wavelength. The two are different working states of the same physical module. By using the same tuned laser, the product cost can be reduced.

[0128] The detection light generating module 10 can also be used to generate range light. Specifically, the detection light generating module 10 can generate range light covering one or more wavelength bands, and then analyze the wavelength range of the feedback signal through a spectrometer or a demultiplexer to determine the specific "feedback signal combination". The detection light generating module 10 can be implemented, for example, by using a light source covering one or more wavelength bands to generate the range light, and further, it can also cooperate with a filter device to filter out unnecessary wavelength bands to minimize the interference of noise signals.

[0129] The above light sources covering one or more bands can be flexibly selected according to needs, for example:

[0130] Incandescent lamp: Incandescent lamp uses tungsten filament to generate heat and light after being energized. It produces a continuous spectrum and has a high color rendering index.

[0131] Fluorescent lamp: The discharge of the filament of a fluorescent lamp causes the mercury vapor to emit ultraviolet light, which excites the phosphorus fluorescent paint on the inner surface, causing it to release lower wavelength visible light. The color of the light emitted is controlled by the proportion of the phosphorus component, which produces multiple discontinuous spectra.

[0132] LED lamp: The blue light chip emits blue light to illuminate one or more phosphors, producing white light mixed with the blue light and the light emitted by the phosphors, which produces multiple discontinuous spectra.

[0133] Halogen lamp / halogen tungsten lamp: The essence of halogen lamp is tungsten filament lamp, which also utilizes the principle of thermal luminescence, but has higher energy efficiency and service life, and produces a continuous spectrum.

[0134] This embodiment generates detection light in the form of a single wavelength or a combination of wavelengths through a detection light generating module. The wavelength of the detection light is relatively clear and the power is relatively concentrated, which is beneficial to improving the detection accuracy. The detection light generating module generates range light covering one or more bands, and outputs detection light corresponding to various feedback structures at a low cost, thereby improving the efficiency of identifying optical fibers.

[0135] In addition, it can be understood that the wavelength form of the detection light output by the detection light generating module 10 and the reflection wavelength form of the feedback structure can be arbitrarily combined, and there is no special corresponding requirement between the two. For example, the detection light generating module 10 outputs light of discrete wavelengths (that is, a single wavelength or a combination of wavelengths), and the feedback structure is "a structure capable of reflecting a certain wavelength range (such as a dichroic film)". For another example, the detection light generating module 10 outputs range light, and the feedback structure is "a structure capable of reflecting a specific wavelength (such as an anti-reflection film, fiber grating)". The range light in the previous embodiment does not necessarily have to cover the entire reflection wavelength range of a feedback structure. For example, the reflection wavelength range of a feedback structure is 250 to 300nm, and the input range light can be 290 to 700nm. The range light only includes a partial band of the feedback structure, and the feedback structure can still give a feedback signal.

[0136] Based on any embodiment, in one embodiment, the detection module 30 may be a spectrometer or an optical power detector.

[0137] Specifically, the spectrometer and demultiplexer can detect multiple parameters of the optical signal, such as wavelength, intensity, power, etc., and can comprehensively and accurately analyze the "feedback signal combination".

[0138] The detection module 30 can also be an optical power detector. For example, the same feedback structure is arranged in parallel in the optical fiber, and each feedback structure forms a specific combination in combination with its position. The power detector can directly detect whether the corresponding position is provided with a feedback structure, so as to determine the "feedback structure combination"; for example, different feedback structures are arranged in parallel or in series in the optical fiber. When detecting the feedback signal combination, the detection light generating module 10 is controlled to generate a detection light of a specific wavelength each time. If the optical power detector (such as a PD power detector) detects a power signal, the wavelength is added to the "feedback signal combination", and then the input detection light wavelength is changed in turn for detection until all wavelengths are detected and a complete feedback signal combination is obtained. Furthermore, a threshold value can be set for the detected optical signal power. If the detected optical signal power does not reach the threshold value, it may be a noise signal, and the current wavelength is not added to the "feedback signal combination". It can be understood that for the case where the feedback structures are arranged in parallel, each feedback structure needs to be detected separately. For another example, the "feedback structure combination" includes reflective films with different reflectivities. The optical power of the feedback signal is detected by the optical power detection module and is used to compare with the input detection optical power, thereby determining the reflectivity of each feedback structure to obtain the "feedback structure combination".

[0139] This embodiment provides a detection module in the form of a spectrometer or a de-wavelength division multiplexer or an optical power detector. The spectrometer or de-wavelength division multiplexer can comprehensively and accurately detect the feedback signal combination, and the optical power detector can detect the feedback signal combination at a low cost, thereby meeting the differentiated cost and quality requirements of users.

[0140] Based on any embodiment, in one embodiment, the processing module 40 is configured to:

[0141] Determine the type of optical fiber currently connected according to the optical signal detected by the detection module 30 and the preset correspondence between the treatment optical fiber and the reflected light combination;

[0142] If the currently connected optical fiber type does not conform to the target optical fiber type, a prompt message is output and / or the therapeutic light generating module is prevented from outputting therapeutic light and / or the currently connected optical fiber is ejected.

[0143] Specifically, the target fiber type can be determined based on preset parameters, such as the manufacturer required by the laser treatment system, the required fiber power and other parameters, or it can be input by the doctor according to the surgical requirements, or it can be automatically extracted by the laser treatment system according to the surgical plan. The detection module 20 determines the detection structure combination based on the reflected light signal combination, thereby determining which type of optical fiber is currently connected. If the currently connected optical fiber type does not match the target optical fiber type, a prompt message can be output. The prompt message can be a text display (such as flashing or dark text, pictures, etc.), or it can be a prompt message in the form of an audible and visual alarm (such as a buzzer, a speaker, a flashing light), or output a control instruction to prevent the therapeutic light generating module 20 from outputting therapeutic light, or output a control instruction to control the optical fiber interface to pop up the currently connected optical fiber, thereby reducing the risk of mismatching the optical fiber and improving the safety of the operation.

[0144] This embodiment automatically determines whether the optical fiber matches the treatment device, and improves the safety of the operation, the degree of intelligence, and reduces the workload of doctors by outputting prompt information, preventing the treatment light generating module from outputting treatment light, and ejecting the currently connected optical fiber.

[0145] The detection light generating module 10 may be a detection light that traverses and outputs various types of feedback structures, or may simultaneously output detection lights that correspond to various types of feedback structures (or output detection lights that correspond to various types of feedback structures in groups). In one embodiment, a specific optical fiber type is identified by outputting a plurality of detection lights. In a feasible manner, the detection light generating module 10 sequentially outputs detection lights that correspond to various types of optical fibers. When the detection light corresponding to a certain type of optical fiber is output, the detection module 30 detects a corresponding reflected light signal, and it is confirmed that the optical fiber that is connected is of that type, and the output of the detection light may be stopped. In another feasible manner, the detection light generating module 10 outputs detection lights that correspond to various types of optical fibers in groups, for example, first outputs detection lights that correspond to types A, B, and C optical fibers, and then outputs detection lights that correspond to types D, E, and F optical fibers... When a reflected light signal is detected when a certain group of detection lights is output, the optical fiber type may be determined based on the wavelength of the reflected light signal. When the detection lights corresponding to various types / groups of optical fibers are outputted completely and the corresponding reflected light signal is still not detected, it is confirmed that an unknown optical fiber is connected, and an alarm is given. In another feasible manner, the detection light generating module 10 simultaneously outputs detection light corresponding to various optical fibers. If a reflected light signal is detected, the optical fiber type is determined according to the wavelength of the reflected light signal, otherwise an alarm is output. Of course, the processing module 40 can also control the detection light generating module 10 to directly output the detection light corresponding to the target optical fiber type according to the target optical fiber type, thereby improving the matching efficiency.

[0146] This embodiment accurately identifies the type of connected optical fiber by outputting detection light corresponding to each type of optical fiber.

[0147] Furthermore, the detection light generating module 10 can be manually controlled by the user to output the detection light corresponding to each type of optical fiber, or the processing module 40 can be configured so that the processing module 40 controls the detection light generating module 10 to output the detection light corresponding to each type of optical fiber in sequence / in groups / simultaneously according to preset parameters or user input instructions.

[0148] This embodiment can automatically invent optical fibers for detecting light and identifying target types according to surgical plans or user input instructions, thereby improving the level of intelligence and being beneficial to improving surgical efficiency.

[0149] Based on any embodiment, in one embodiment, the laser treatment system is a laser interstitial thermal therapy system, and the laser interstitial thermal therapy system further includes a cooling circulation component and an input and output module.

[0150] The optical fiber connected to the laser interstitial thermal therapy system directs light energy into the lesion to heat and ablate the lesion. The cooling cycle is gradually used to cool down the area around the optical fiber implanted in the target area to avoid local overheating. The user can input control instructions through the input module, and the output module can output surgery-related information for the user to understand the status of the surgery.

[0151] Based on the previous embodiment, in one embodiment, the cooling cycle component includes:

[0152] A cooling circulation sleeve is sleeved on the optical fiber;

[0153] A cooling medium container is connected to the cooling circulation sleeve through a cooling circulation pipeline and is used to store the cooling medium;

[0154] A peristaltic pump is provided on the cooling circulation pipeline and is used to pump the cooling medium into the cooling circulation sleeve to cool the optical fiber;

[0155] The foot switch is used to control the working state of the second laser according to the user's operation.

[0156] Based on any of the embodiments, in one embodiment, the laser interstitial thermal therapy system further comprises a magnetic resonance device, which collects magnetic resonance image data of the target area;

[0157] The processing module is used to generate temperature data of the target area according to the magnetic resonance image data to guide the laser interstitial thermal therapy process.

[0158] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An identifiable type of therapeutic optical fiber, It is characterized in that The therapeutic optical fiber is provided with a feedback structure, which can give a specific feedback signal to the input detection light so as to identify the therapeutic optical fiber; The therapeutic optical fiber can also transmit therapeutic light for performing treatment.

2. The therapeutic optical fiber according to claim 1, It is characterized in that The feedback structure is capable of reflecting a specific wavelength range of the detection light; Alternatively, the feedback structure can reflect the input detection light with a specific reflectivity.

3. The therapeutic optical fiber according to claim 1, It is characterized in that The therapeutic optical fiber is provided with the feedback structure in series to form a specific combination; Each feedback structure can reflect detection light in different wavelength ranges, and the transmission wavelength range of each feedback structure can cover at least a part of the reflection wavelength range of each feedback structure at its far end side.

4. The therapeutic optical fiber according to claim 2 or 3, It is characterized in that The feedback structure is arranged at any of the following positions of the therapeutic optical fiber: an optical fiber joint, an optical fiber incident end face, a transmission section, an optical fiber exit end face or an optical fiber side wall.

5. The therapeutic optical fiber according to claim 2 or 3, It is characterized in that The therapeutic optical fiber is a multi-core optical fiber, at least one of the cores of which is provided with the feedback structure.

6. The therapeutic optical fiber according to claim 1, It is characterized in that The therapeutic optical fiber includes the feedback structures arranged in parallel, and each feedback structure forms a specific combination for identifying the therapeutic optical fiber according to a given feedback signal combination.

7. The therapeutic optical fiber according to claim 6, It is characterized in that Each feedback structure arranged in parallel can provide feedback signals in different wavelength ranges to the input detection light.

8. The therapeutic optical fiber according to claim 6, It is characterized in that The feedback structures arranged in parallel can provide feedback signals in the same wavelength range to the input detection light, and the feedback structures form the specific combination in combination with their arrangement positions.

9. The therapeutic optical fiber according to claim 6, It is characterized in that The therapeutic optical fiber includes at least two parallel cores, each core may or may not be provided with a feedback structure, and at least one core is provided with a feedback structure, each feedback structure can reflect detection light in a corresponding wavelength range and transmit therapeutic light.

10. The therapeutic optical fiber according to claim 2, 3 or 9, It is characterized in that Each feedback structure is selected from any one of the following: fluorescent transparent structure, semi-transparent and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, and anti-reflection film.

11. The therapeutic optical fiber according to claim 6, It is characterized in that The therapeutic optical fiber includes a therapeutic core and at least two detection units, wherein the therapeutic core is used to transmit therapeutic light, and each detection unit may or may not be provided with a feedback structure to form the specific combination.

12. The therapeutic optical fiber according to claim 11, It is characterized in that Each feedback structure is selected from any of the following: reflective film, fluorescent structure, semi-transparent and semi-reflective film, dichroic film, narrow-band reflective film, fiber grating, and anti-reflection film.

13. An optical fiber kit, comprising at least two therapeutic optical fibers, each of which is provided with a different feedback structure, capable of giving different feedback signals to input detection light to identify the type of optical fiber connected, and each therapeutic optical fiber can also transmit therapeutic light so as to perform treatment using the therapeutic light.

14. A laser treatment system, It is characterized in that include: A detection light generating module is used to generate detection light and output it to the connected optical fiber; A therapeutic light generating module, used to generate therapeutic light and output it to the connected optical fiber; A detection module, used for detecting a feedback signal received by the optical fiber interface; A processing module, used for identifying the type of the connected optical fiber according to the detection result of the feedback signal by the detection module; Among them, various types of optical fibers adapted to the laser treatment system are respectively provided with feedback structures, and the feedback structures of various types of optical fibers can give different feedback signals to the input detection light.

15. The laser treatment system according to claim 14, It is characterized in that The detection light generating module is used to generate single wavelength light, or to generate detection light with different wavelength combinations, or to generate range light including one or more wavelength bands.

16. The laser treatment system according to claim 14, It is characterized in that The detection module is a spectrometer or a wavelength division multiplexer or an optical power detector.

17. The laser treatment system according to claim 14, It is characterized in that The therapeutic light generating module is a laser with adjustable wavelength, or the therapeutic light generating module includes multiple ones to generate therapeutic light with different wavelengths.

18. The laser treatment system according to claim 14, It is characterized in that The processing module is configured to: Determine the type of currently connected optical fiber according to the optical signal detected by the detection module and the preset correspondence between the treatment optical fiber and the feedback signal; If the currently connected optical fiber type does not conform to the target optical fiber type, a prompt message is output and / or the therapeutic light generating module is prevented from outputting therapeutic light and / or the currently connected optical fiber is ejected.

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