Optical fiber adjusting device and system for optomagnetic combined diagnosis and treatment

Abstract

The embodiment of the utility model provides an optical fiber adjusting device and a system used for optomagnetic combined diagnosis and treatment, the optical fiber adjusting device is used for an optomagnetic combined diagnosis and treatment device and comprises a beam expander, a fixing seat used for fixing the beam expander, a fixing seat support arm, a connecting rod and a connecting seat used for being fixed to a nuclear magnetic coil, the connecting base, the connecting rod and the fixing base supporting arm are sequentially connected in a pivoted mode, the pivoted connecting positions can be fixed to form a needed three-dimensional structure, and a spherical hinge connecting structure is arranged between the fixing base supporting arm and the fixing base, so that the position of light irradiated to the brain of a patient can be finely adjusted within the three-dimensional range, and the patient's brain can be more effectively protected. Therefore, the accuracy of light treatment is improved, the treatment target area is adjusted in real time, the diameter of light spots actually irradiated to the brain of a patient can be accurately adjusted, and the effect of light treatment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of light therapy equipment, and in particular relates to an optical fiber adjustment device and a system for light-magnetic combined diagnosis and treatment. Background Art

[0002] Phototherapy is a method of treating diseases using light of specific wavelengths, and has been widely used in neuroscience and medical research in recent years. Magnetic resonance imaging (MRI) is a non-invasive medical imaging technology that uses strong magnetic fields and radio waves to generate detailed images of the inside of the human body. MRI can also detect the functional activity of the human brain through functional imaging techniques (such as resting-state functional connectivity MRI and task-based functional MRI).

[0003] At present, when using transcranial phototherapy equipment, light with a certain wavelength is used to penetrate the human skull and stimulate cells to produce beneficial effects on cells, thereby achieving the purpose of treating brain diseases. In order to judge the effect of phototherapy, usually after the patient's treatment cycle is over, the patient's brain function status is detected by near-infrared brain function imaging, electroencephalogram or functional magnetic resonance imaging and other detection methods. It is impossible to detect the patient's brain function status in real time during the phototherapy process, and the treatment is blind. In the existing field of phototherapy, the irradiation position of the light emission point of the phototherapy equipment is usually fixed, and the treatment target area of ​​the patient's brain cannot be adjusted in real time. In addition, by adjusting the irradiation position of the light emission point, it is also impossible to accurately adjust the diameter of the light spot actually irradiated to the patient's brain. If the diameter of the light spot actually irradiated to the patient's brain does not reach the preset value for effective phototherapy, it will seriously affect the effect of phototherapy. Utility Model Content

[0004] In view of the above problems existing in the prior art, the purpose of the embodiments of the present invention is to provide an optical fiber adjustment device and a system for combined optical and magnetic diagnosis and treatment, which can detect the patient's brain function status in real time during the optical treatment process to avoid blind treatment. The present invention can also adjust the light irradiation position and the diameter of the light spot actually irradiated to the patient's brain by the light emission point, so as to achieve the purpose of accurately adjusting the treatment target area, and make the diameter of the light spot irradiated to the patient's brain reach a preset value, further improving the effect of optical treatment.

[0005] According to the first aspect of the utility model, there is provided an optical fiber adjustment device, which is used for a combined optical and magnetic diagnosis and treatment device, and includes a beam expander, a fixed seat for fixing the beam expander, a fixed seat arm, a connecting rod and a connecting seat for fixing to a nuclear magnetic resonance coil, wherein the connecting seat, the connecting rod and the fixed seat arm can be pivotally connected in sequence, and the pivotable connection can be fixed to form a desired three-dimensional structure, and a ball joint connection structure is provided between the fixed seat arm and the fixed seat.

[0006] In some embodiments, a distance measuring mechanism is further included, which is detachably fixed to the beam expander and passes through the opening of the nuclear magnetic coil toward the target irradiation site to measure the distance to the target irradiation site.

[0007] In some embodiments, the ranging mechanism includes a slender body and a first clamping portion provided at a first end of the slender body, the first clamping portion is configured to be clamped to the beam expander, and an extending direction of the slender body is consistent with a longitudinal direction of the beam expander.

[0008] In some embodiments, the first clamping portion is further provided with a hand-held handle, and the second end of the elongated body is provided with a flat body for contacting the target irradiation site.

[0009] In some embodiments, the fixing seat is formed with a spherical joint, the fixing seat support arm is T-shaped, and a spherical groove is provided at its base to be dampedly connected with the spherical joint in a multi-directional rotatable manner.

[0010] In some embodiments, the fixed seat support arm is assembled from a first support arm and a second support arm, and the first support arm and the second support arm are respectively provided with a first groove and a second groove. When the first support arm and the second arm are assembled and fixed, the first groove and the second groove form a spherical slide groove.

[0011] In some embodiments, the fixing seat, the fixing seat arm, the connecting rod and the connecting seat are all made of photosensitive resin.

[0012] In some embodiments, the connecting seat includes a second clamping portion and a rod-shaped portion, the second clamping portion is configured to hold and clamp a boss connected to the nuclear magnetic coil, and the rod-shaped portion is connected to the connecting rod at the end through a butterfly screw and a screw hole.

[0013] In some embodiments, the connecting rod is at least partially a hollow structure.

[0014] According to the second aspect of the utility model, a system for combined optical and magnetic diagnosis and treatment is provided, comprising a light source, an optical fiber, and an optical fiber adjustment device according to various embodiments of the utility model, wherein the two ends of the optical fiber are respectively connected to the output end of the light source and the incident end of the beam expander to transmit the light from the light source to the beam expander.

[0015] Compared with the prior art, the beneficial effect of the embodiment of the utility model is that the beam expander is connected to the fixed seat, and the connecting seat, the connecting rod and the fixed seat support arm can be pivotally connected in sequence, so that the optical fiber adjustment device can be fixed to the patient's treatment target area. By adjusting the three-link mechanism formed by the connecting seat, the connecting rod and the fixed seat support arm, the ranging structure is adjusted to the patient's treatment target area, and the position of the beam expander is finely adjusted in three-dimensional space, so as to accurately control the specific position of the light irradiated to the patient's brain, thereby improving the efficiency of light therapy. When the light is adjusted to the exact position, the height of the light emission point of the beam expander relative to the target area of ​​the patient's brain can also be adjusted. By adjusting the height of the light emission point and the irradiation angle of the light emission point, the diameter of the light spot actually irradiated to the patient's brain can be accurately adjusted to improve the effect of light therapy. The optical fiber adjustment device provided by the utility model can also be used in nuclear magnetic resonance detection, that is, the patient's brain function status can be detected in real time during light therapy to avoid the blindness of light therapy.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to restrict the present invention.

[0017] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the utility model. When appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present device or method.

[0019] Figure 1 It is a schematic structural diagram of an optical fiber adjustment device according to an embodiment of the utility model.

[0020] Figure 2 It is a schematic structural diagram of a beam expander according to an embodiment of the utility model.

[0021] Figure 3 It is a structural schematic diagram of an optical fiber adjustment device according to a second embodiment of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the distance measuring mechanism of an embodiment of the utility model.

[0023] Figure 5It is a structural schematic diagram of a fixing base according to an embodiment of the utility model.

[0024] Figure 6 It is a structural schematic diagram of the first supporting arm of an embodiment of the utility model.

[0025] Figure 7 It is a schematic structural diagram of the second supporting arm of an embodiment of the utility model.

[0026] Figure 8 It is a structural schematic diagram of a connecting socket according to an embodiment of the utility model.

[0027] Fig. 9 It is a schematic structural diagram of a gasket according to an embodiment of the utility model.

[0028] Fig.10 Schematic diagram of the structure of the connecting rod of the embodiment of the utility model.

[0029] Fig.11 This is a schematic diagram of the structure of a system for combined optical and magnetic diagnosis and treatment according to an embodiment of the utility model.

[0030] Reference numerals:

[0031] 1- beam expander; 2- fixed seat; 3- fixed seat support arm; 4- connecting rod; 5- connecting seat; 6- ranging structure; 7- beam expander lens group; 8- incident end; 9- exit end; 10- slender body; 11- first clamping part; 12- hand handle; 13- flat body; 14- spherical joint; 15- fixing plate; 16- first support arm; 17- second support arm; 18- first groove; 19- second groove; 20- second clamping part; 21- rod-shaped part; 22- boss; 23- butterfly screw; 24- gasket; 25- nuclear magnetic coil; 26- light source; 27- optical fiber. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0035] like Figure 1 As shown, an embodiment of the utility model provides an optical fiber adjustment device, which is used for a combined optical and magnetic diagnosis and treatment device, and includes a beam expander 1, a fixed seat 2 for fixing the beam expander 1, a fixed seat arm 3, a connecting rod 4 and a connecting seat 5 for fixing to a nuclear magnetic coil 25, wherein the connecting seat 5, the connecting rod 4 and the fixed seat arm 3 can be pivotally connected in sequence, and the pivotable connection can be fixed to form a desired three-dimensional structure, and a ball joint connection structure is provided between the fixed seat arm 3 and the fixed seat 2.

[0036] The MRI coil 25 is used to accommodate the patient's brain during the MRI detection process. The optical fiber adjustment device is installed on the MRI coil 25, so that the MRI detection can be carried out simultaneously during the light therapy process. The beam expander 1 is used to expand the diameter of the parallel input light beam.

[0037] The connecting seat 5, the connecting rod 4 and the fixed seat arm 3 are pivotally connected in sequence, and the position of the fixed seat arm 3 relative to the connecting rod 4 can be adjusted, and the position of the connecting rod 4 relative to the connecting seat 5 can also be adjusted, thereby adjusting the position of the beam expander 1, so as to accurately irradiate the target area of ​​the patient's brain. During the position adjustment process, the height of the light emission point of the beam expander 1 can be adjusted to adjust the size of the spot diameter while accurately irradiating.

[0038] The fixing seat 2 is connected to the beam expander 1, and there is a ball joint connection structure between the fixing seat 2 and the fixing seat support arm 3, so the fixing seat 2 can drive the beam expander 1 to rotate relative to the fixing seat support arm 3. By driving the beam expander 1 to rotate in three dimensions through the fixing seat 2, the exact position of the light spot irradiated to the patient's brain can be adjusted more accurately, and it is also convenient to adjust the treatment target area of ​​the patient's brain in real time. And by adjusting the height of the light emission point and the irradiation angle, the size of the light spot diameter can be changed.

[0039] Different patients have different head circumferences, resulting in different locations of the light therapy target area of ​​the patient's brain in the nuclear magnetic coil 25. Through the adjustment of the optical fiber adjustment device, the light spot can be accurately adjusted to irradiate the light therapy target area of ​​the patient's brain (such as the left ventrolateral prefrontal lobe, the right ventrolateral prefrontal lobe and the frontal pole), and the light spot diameter can be adjusted to reach a preset value effective for light therapy (such as 20-40mm, and for example about 30mm), thereby improving the effect of light therapy. Therefore, the optical fiber adjustment device can be used to perform light therapy while using nuclear magnetic equipment to perform brain function testing. The angle and height of the light emission point of the beam expander 1 can be adjusted in time according to the patient's brain function test results to adjust the light spot diameter, and the position of the irradiated treatment target area can also be adjusted to improve the treatment efficiency.

[0040] By fixing the connection base 5 to the nuclear magnetic coil 25, the position stability of the optical fiber adjustment device during the phototherapy process can be maintained, so that the position of the light emission point of the beam expander 1 during the phototherapy process remains stable, ensuring the safety and effectiveness of the treatment.

[0041] like Figure 2 As shown, in some embodiments, the beam expander 1 includes an incident end 8, a beam expanding lens group 7, and an output end 9. The incident end 8 is used to receive the light beam to be expanded, the beam expanding lens group 7 is used to expand the incident light beam, and the output end 9 is used to output the expanded light beam. The output end of the optical fiber 27 is connected to the incident end 8 on the beam expander 1, the incident light beam is expanded by the beam expanding lens group 7, and the expanded light beam is output through the output end 9, so that the spot diameter of the light emission point (the point where the light from the output end 9 is emitted) reaching the treatment target area reaches a preset value.

[0042] The term "brain" used in the present application refers to the organ remaining after removing extracerebral tissues, etc., and is primarily intended to refer to the cerebrum, but is not limited thereto and may also include the cerebrum, cerebellum, brain stem, etc.

[0043] like Figure 3As shown, in some embodiments, the optical fiber adjustment device further includes a distance measuring mechanism 6, which is detachably fixed to the beam expander 1 and passes through the opening of the nuclear magnetic coil 25 toward the target irradiation site to measure the distance to the target irradiation site. The distance measuring structure 6 can keep the output end 9 of the beam expander 1 at a suitable distance from the target irradiation site, thereby making the spot diameter of the light emission point of the beam expander 1 reaching the target irradiation site reach a preset value, thereby improving the effect of light therapy.

[0044] like Figure 4 As shown, in some embodiments, the distance measuring mechanism 6 includes a slender body 10 and a first clamping portion 11 provided at a first end of the slender body 10, the first clamping portion 11 is configured to be clamped to the beam expander 1, and the extension direction of the slender body 10 is consistent with the longitudinal direction of the beam expander 1. The length and diameter (or equivalent size) of the slender body 10 can be adjusted according to specific application requirements, and the cross-sectional shape of the slender body 10 can be circular, elliptical, polygonal or any other suitable shape, and no specific limitation is made to this.

[0045] In some embodiments, Figure 3 As shown, when the first clamping portion 11 is connected to the beam expander 1, the beam expander 1 and the slender body 10 are in the same straight line. The direction of the collimated light beam after the beam expander 1 is basically determined by the extension direction of the slender body 10, which can effectively reduce the loss of the light beam during transmission and improve the efficiency of light therapy. The slender body 10 based on the ranging structure 6 can accurately adjust the distance between the light emission point of the beam expander 1 and the treatment target area of ​​the patient's brain, so that it is kept within a certain distance range, such as 10cm±1cm, so that the spot diameter reaches a preset value, effectively providing a light therapy effect. In some embodiments, the length of the slender body 10 can be set based on the preset distance between the light emission point of the beam expander 1 and the treatment target area of ​​the patient's brain. When in use, as long as the second end of the slender body 10 is operated to be against the treatment target area or the target irradiation site, the preset distance between the light emission point of the beam expander 1 and the treatment target area of ​​the patient's brain can be accurately adjusted according to application requirements, and the operation is simple.

[0046] In some embodiments, the first clamping portion 11 is also provided with a hand-held handle 12, and the second end of the slender body 10 is provided with a flat body 13 for contacting the target irradiation site. The clamping component is mounted on the beam expander 1 through the hand-held handle 12, and the clamping component provides a certain force to the beam expander 1, so that the beam expander 1 can be easily adjusted and rotated. In some embodiments, after the light emission point is adjusted to a preset position by the slender body 10, the ranging structure 6 is taken out by the hand-held handle 12 on the first clamping portion 11 to prevent the slender body 10 from blocking the treatment target area or the target irradiation site. The flat body 13 can be used to calibrate the target irradiation position of the patient's brain, such as the treatment target area of ​​the frontal lobe. The structure of the flat body 13 makes the area of ​​the side that contacts the patient's scalp larger to reduce the squeezing of the patient's scalp.

[0047] like Figure 5 As shown, in some embodiments, the fixing seat 2 is formed with a spherical joint 14, the fixing seat arm 3 is T-shaped, and a spherical slot is provided at its base to be dampedly connected with the spherical joint 14 in a multi-directional rotatable manner. Through the rotational cooperation of the spherical joint 14 and the spherical slot, the angle of the fixing seat 2 and the beam expander 1 can be adjusted. In some embodiments, the rotation angle range of the beam expander 1 and / or the fixing seat 2 is set within the range of 0-60°. And due to the damping connection between the spherical joint 14 and the spherical slot, the fixing seat 2 can be parked at any angle.

[0048] In some embodiments, the fixing base 2 further includes a fixing plate 15, which is integrally formed with the spherical joint 14, and the fixing plate 15 is fixedly connected to the beam expander 1, so that the fixing base 2 can drive the beam expander 1 to rotate. In some embodiments, the beam expander 1 and the fixing plate 15 are configured to be detachably connected, for example, by screws and nuts.

[0049] like Figure 6 and Figure 7 As shown, in some embodiments, the fixed seat arm 3 is assembled by a first arm 16 and a second arm 17, and the first arm 16 and the second arm 17 are respectively provided with a first groove 18 and a second groove 19. When the first arm 16 and the second arm 17 are assembled and fixed, the first groove 18 and the second groove 19 form a spherical groove. The first groove 18 and the second groove 19 can be semicircular grooves respectively. The spherical joint 14 is constrained in the spherical groove, and due to reasons such as material and friction, the spherical joint 14 can slide and stop at any angle, which is convenient for adjusting the angle of the expander 1. In some embodiments, the first arm 16 and the second arm 17 can be fixed by bolts, and the bolts can also be made of plastic material, such as nylon. Nylon material has good self-lubricating properties, which can reduce the friction between the screw and the nut, thereby reducing the possibility of wear and loosening.

[0050] In some embodiments, the first support arm 16 and the second support arm 17 are respectively T-shaped structures, which can not only support the fixing seat 2, but also reduce the weight of the entire optical fiber adjustment device.

[0051] In some embodiments, the fixing base 2, the fixing base arm 3, the connecting rod 4 and the connecting base 5 are all made of photosensitive resin. For example, the photosensitive resin model is C-UV 9400E. It is understandable that other types of photosensitive resins can also be used. This is just an example. The selection of photosensitive resin material can avoid affecting nuclear magnetic detection, and can also make the fixing base 2, the fixing base arm 3, the connecting rod 4 and the connecting base 5 have the required strength.

[0052] Specifically, all components of the optical fiber adjustment device are made of non-metallic materials, such as screws, nuts, and beam expanders, etc., which are made of non-metallic materials such as nylon. In this way, it can be ensured that the optical fiber adjustment device will not be disturbed or affected by the high magnetic field environment of the nuclear magnetic resonance room, so that the patient's brain function status can be detected in real time during the light therapy, effectively avoiding the blindness of light therapy.

[0053] like Figure 8 As shown, in some embodiments, the connection seat 5 includes a second clamping portion 20 and a rod-shaped portion 21, the second clamping portion 20 is configured to hold and clamp the boss 22 connected to the nuclear magnetic coil 25, and the rod-shaped portion 21 is connected to the connecting rod 4 at the end through a butterfly screw 23 and a screw hole. The connection between the second clamping portion 20 and the nuclear magnetic coil 25 can keep the position of the beam expander 1 stable during the light therapy, ensuring the safety and effectiveness of the therapy. The rod-shaped portion 21 is pivotally connected to the connecting rod 4, wherein the rod-shaped portion 21 can be a U-shaped rod-shaped structure, which is convenient for connection with the connecting rod 4.

[0054] In some embodiments, the second clamping portion 20 is provided with a U-shaped groove, and the U-shaped groove is clamped to the boss 22 of the nuclear magnetic coil 25. It is convenient to fix the connecting seat 5. The U-shaped groove may be provided with a screw hole.

[0055] In some embodiments, the connecting seat 5, the connecting rod 4 and the fixed seat arm 3 can be connected in sequence by a screw pair. The screw pair is a surface contact structure, and the contact surface is designed as a cylindrical surface. The manufacturing process is relatively simple, and it is easy to obtain high precision. The screw pair is subjected to less pressure per unit area during transmission, and is conducive to lubrication. Therefore, it has less wear and a longer service life. In other embodiments, the connecting seat 5, the connecting rod 4 and the fixed seat arm 3 can be connected in sequence by a butterfly screw and a screw hole. The butterfly screw is easy to screw, so that the user can easily adjust the angle formed by the connecting seat 5, the connecting rod 4 and the fixed seat arm 3, thereby flexibly controlling the spatial position of the beam expander 1.

[0056] like Figure 3 and Fig. 9As shown, in some embodiments, a gasket 24 is provided between the second clamping portion 20 and the nuclear magnetic coil 25. This can avoid excessive connection between the connecting base 5 and the nuclear magnetic coil 25, increase the contact area, reduce pressure, and protect the nuclear magnetic coil 25 from being scratched by the butterfly screw 23 installed on the second clamping portion 20. In addition, the gasket 24 can also prevent the screw from loosening or deforming during connection, and it can also disperse the pressure at the connection, reducing wear and damage at the connection.

[0057] like Fig.10 As shown, in some embodiments, the connecting rod 4 is at least partially a hollow structure, which is beneficial to reduce the weight of the entire device while ensuring the strength of the connecting rod 4.

[0058] like Fig.11 As shown, the embodiment of the utility model also provides a system for combined optical and magnetic diagnosis and treatment, the system includes a light source 26, an optical fiber 27 and an optical fiber adjustment device according to any embodiment of the present application, and the two ends of the optical fiber 27 are respectively connected to the output end 9 of the light source 26 and the input end 8 of the beam expander 1 to transmit the light from the light source 26 to the beam expander 1. In some embodiments, the light source 26 can be a laser, and the laser light emitted by the laser reaches the beam expander 1 through the optical fiber 27. Preferably, the central wavelength of the laser light emitted by the laser is 808±5nm, so that effective light therapy effects can be achieved from the surface of the skin to the deep tissue.

[0059] The utility model is connected to the fixed seat through a beam expander, and the connecting seat, connecting rod and fixed seat support arm can be pivotally connected in sequence, so that the optical fiber adjustment device can be fixed to the patient's treatment target area. By adjusting the three-link mechanism formed by the connecting seat, connecting rod and fixed seat support arm, the ranging structure is adjusted to the patient's treatment target area, so that the position of the beam expander can be finely adjusted in three-dimensional space, so as to accurately control the specific position of the light irradiated to the patient's brain, thereby improving the efficiency of light therapy. When the light is adjusted to the exact position, the height of the light emission point of the beam expander relative to the target area of ​​the patient's brain can also be adjusted. By adjusting the height of the light emission point and the irradiation angle of the light emission point, the diameter of the light spot actually irradiated to the patient's brain can be accurately adjusted to improve the effect of light therapy. The optical fiber adjustment device provided by the utility model can also be used in nuclear magnetic resonance detection, that is, the patient's brain function status can be detected in real time during light therapy to avoid the blindness of light therapy.

[0060] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. An optical fiber adjustment device, characterized in that: The optical fiber adjustment device is used in a combined optical and magnetic diagnosis and treatment device, and includes a beam expander, a fixing seat for fixing the beam expander, a fixing seat arm, a connecting rod, and a connecting seat for fixing to a nuclear magnetic resonance coil, wherein the connecting seat, the connecting rod, and the fixing seat arm can be pivotally connected in sequence, and the pivotable connection can be fixed to form a desired three-dimensional structure, and a ball joint connection structure is provided between the fixing seat arm and the fixing seat.

2. The optical fiber adjustment device according to claim 1, characterized in that: It also includes a distance measuring mechanism, which is detachably fixed to the beam expander and passes through the opening of the nuclear magnetic coil toward the target irradiation site to measure the distance to the target irradiation site.

3. The optical fiber adjustment device according to claim 2, characterized in that: The distance measuring mechanism includes a slender body and a first clamping portion provided at a first end of the slender body, wherein the first clamping portion is configured to be clamped to the beam expander, and an extending direction of the slender body is consistent with a longitudinal direction of the beam expander.

4. The optical fiber adjustment device according to claim 3, characterized in that: The first clamping portion is also provided with a hand-held handle, and the second end of the slender body is provided with a flat body for contacting the target irradiation site.

5. The optical fiber adjustment device according to claim 1, characterized in that: The fixing seat is formed with a spherical joint, the fixing seat support arm is T-shaped, and a spherical sliding groove is provided at the base thereof to be dampedly connected with the spherical joint in a multi-directional rotatable manner.

6. The optical fiber adjustment device according to claim 5, characterized in that: The fixed seat support arm is assembled from a first support arm and a second support arm, and the first support arm and the second support arm are respectively provided with a first groove and a second groove. When the first support arm and the second support arm are assembled and fixed, the first groove and the second groove constitute the spherical slide groove.

7. The optical fiber adjustment device according to any one of claims 1 to 6, characterized in that: The fixing seat, the fixing seat support arm, the connecting rod and the connecting seat are all made of photosensitive resin.

8. The optical fiber adjustment device according to any one of claims 1 to 6, characterized in that: The connecting seat comprises a second clamping portion and a rod-shaped portion, wherein the second clamping portion is configured to hold and clamp a boss connected to the nuclear magnetic coil, and the rod-shaped portion is connected to the connecting rod at the end through a butterfly screw and a screw hole.

9. The optical fiber adjustment device according to claim 8, characterized in that: The connecting rod is at least partially a hollow structure.

10. A system for combined optical and magnetic diagnosis and treatment, characterized in that: It comprises a light source, an optical fiber and an optical fiber adjustment device according to any one of claims 1-9, wherein the two ends of the optical fiber are respectively connected to the output end of the light source and the incident end of a beam expander to transmit the light from the light source to the beam expander.

Images