Optical coupling device, near-infrared brain function imaging detection device and near-infrared brain function imaging device and TMS combined system

Abstract

The utility model provides an optical coupling device, a near-infrared brain function imaging detection device and a near-infrared brain function imaging device and TMS combined system. The optical coupling device comprises an optical coupling part and a plurality of light emitting assemblies, each light emitting assembly comprises a light source part, a light cone and a light transmission part, one end of the light cone is arranged corresponding to the light emitting side of the light source part, the other end of the light cone is arranged corresponding to the light receiving side of the light transmission part, and the light transmission part is used for guiding out near-infrared light emitted by the light source part; the optical coupling piece is used for coupling all the optical transmission pieces into a whole, the light-emitting side of the optical coupling piece is connected with a light-emitting probe, and the near-infrared light transmitted by the optical transmission pieces which are coupled into the whole is emitted outwards through the light-emitting probe. Therefore, the stable connection between the light source part and the light transmission part can be realized, the light guide efficiency of the near-infrared light of the optical coupling device is effectively improved, the light transmission parts of the plurality of light-emitting components can be coupled into a whole through the optical coupling part, and the light intensity of the coupled near-infrared light is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of near-infrared brain function imaging, and in particular to an optical coupling device, a near-infrared brain function imaging detection device, and a system combining a near-infrared brain function imaging device with TMS. Background Art

[0002] In order to adapt to the magnetic field environment when the near-infrared brain function imaging device is used in conjunction with functional magnetic resonance imaging, transcranial magnetic stimulation equipment, etc., the prior art needs to convert the transmission mode of the near-infrared light emitted by the light source of the near-infrared brain function imaging device, and transmit the near-infrared light to the head of the subject through a one-to-one longer optical fiber, resulting in severe attenuation of the light intensity, making it impossible to achieve effective detection during near-infrared brain function imaging detection due to the low light intensity entering the cerebral cortex of the subject. In addition, when the near-infrared brain function imaging device is applied to animal detection scenarios, in order to still use the original near-infrared brain function imaging device to achieve near-infrared detection of animals, it is also necessary to use an optical fiber conversion device to convert the transmission mode of the near-infrared light. However, during the optical fiber switching process, since the optical fiber is converted one-to-one, there may be problems such as fiber core misalignment and mode field diameter mismatch, resulting in the problem of light intensity attenuation, and effective detection cannot be achieved. Utility Model Content

[0003] In response to the above-mentioned technical problems existing in the prior art, the present application provides an optical coupling device, a near-infrared brain function imaging detection device, and a system combining a near-infrared brain function imaging device with TMS, which can solve the problem of being unable to achieve effective detection when applied in a magnetic field environment or other scenarios with severe light intensity attenuation.

[0004] The present application provides an optical coupling device for a near-infrared brain function imaging device, comprising a plurality of light-emitting components and an optical coupling member. The light-emitting component comprises a light source portion, a light cone and an optical transmission member, one end of the light cone is arranged corresponding to the light-emitting side of the light source portion, and the other end is arranged corresponding to the light-receiving side of the optical transmission member, and the optical transmission member is used to guide the near-infrared light emitted by the light source portion. The optical coupling member is used to couple each of the optical transmission members into a whole, and a light-emitting probe is connected to the light-emitting side of the optical coupling member to emit the near-infrared light transmitted through the optical transmission member coupled into a whole outwardly through the light-emitting probe.

[0005] In some embodiments, the two ends of the light cone are respectively constructed as a large diameter end and a small diameter end, the large diameter end of the light cone is arranged corresponding to the light emitting side of the light source part, and the small diameter end of the light cone is arranged corresponding to the light receiving side of the optical transmission component.

[0006] In some embodiments, the diameter of the small diameter end of the light cone is the same as the diameter of the light transmission member.

[0007] In some embodiments, the light emitting component includes a light exit hole, and the near infrared light emitted by the light source portion is emitted to the light cone through the light exit hole, and the diameter of the large diameter end of the light cone is greater than or equal to the diameter of the light exit hole.

[0008] In some embodiments, the diameter of the light exit hole ranges from 2 mm to 4 mm.

[0009] In some embodiments, the optical transmission component is configured as an optical fiber, and a single filament diameter of the optical fiber is in a range of 40 μm to 60 μm.

[0010] In some embodiments, the light emitting assembly further includes a connecting member, the light cone is mounted on the connecting member, and the connecting member is detachably connected to the light source portion.

[0011] In some embodiments, the optical coupling device further comprises an optical coupling box, one side of the optical coupling box is provided with an input hole connected to the light emitting component, and the other side of the optical coupling box is provided with an output hole connected to the light emitting probe.

[0012] The present application also provides a near-infrared brain function imaging detection device, including the optical coupling device for the near-infrared brain function imaging device as described above.

[0013] The present application further provides a system combining a near-infrared brain function imaging device and TMS, the system comprising a TMS device and the near-infrared brain function imaging detection device as described above.

[0014] Compared with the prior art, the beneficial effects of the embodiments of the present application are: the present application can achieve stable transmission of light between the light source part and the light transmission part through the light cone, so as to guide as much near-infrared light generated by the light source part into the light transmission part as possible, effectively improving the light guiding efficiency, and the light transmission parts of multiple light-emitting components can be coupled into a whole through the optical coupling part, so that the light intensity of the near-infrared light transmitted to the light-emitting probe after the light transmission part is coupled can be effectively improved, so as to meet the requirements of near-infrared detection, and the reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the 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 apparatus or method.

[0016] Figure 1is a schematic structural diagram of an optical coupling device for a near-infrared brain function imaging device according to an exemplary embodiment of the present application;

[0017] Figure 2 It is a cross-sectional view of an optical coupling device for a near-infrared brain function imaging device according to an exemplary embodiment of the present application.

[0018] The components indicated by the reference numerals in the figures are:

[0019] 1. Light-emitting component; 11. Light source; 12. Light cone; 13. Light transmission component; 14. Light output hole; 15. Connector; 2. Optical coupling component; 3. Light-emitting probe. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation examples. The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation examples, but are not intended to limit the present application.

[0021] The words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "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.

[0022] In the present application, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0023] All terms (including technical terms or scientific terms) used in this application have the same meaning as those understood by ordinary technicians in the field to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0025] In one embodiment of the present invention, a light coupling device for a near-infrared brain function imaging device is provided. Figure 1 and Figure 2 As shown, the optical coupling device for near-infrared brain function imaging device includes an optical coupling member 2 and a plurality of light-emitting components 1. The light-emitting component 1 includes a light source portion 11, a light cone 12 and a light transmission member 13. One end of the light cone 12 is arranged corresponding to the light-emitting side of the light source portion 11, and the other end is arranged corresponding to the light-receiving side of the light transmission member 13. The light transmission member 13 is used to guide the near-infrared light emitted by the light source portion 11. The optical coupling member 2 is used to couple the various light transmission members 13 into a whole. The light-emitting side of the optical coupling member 2 is connected to a light-emitting probe 3 so as to emit the near-infrared light transmitted through the light transmission member 13 coupled into a whole to the outside (e.g., the head of the subject) through the light-emitting probe 3.

[0026] Optionally, the light source unit 11 may be understood as a device capable of emitting near-infrared light, and specifically may be an optical component capable of emitting light, such as an LED lamp, a laser, etc.

[0027] Optionally, the light transmission member 13 may be constructed as a long strip-shaped light transmission structure, such as an optical fiber, which can effectively guide the near-infrared light out.

[0028] like Figure 1 As shown, the optical transmission components 13 of the multiple light-emitting components 1 can be coupled into a whole through the optical coupling component 2, and the multiple light-transmission components 13 after coupling are connected to the light-emitting probe 3, so that the near-infrared lights emitted by the multiple light-emitting components 1 can be aggregated and superimposed to form near-infrared lights with stronger light intensity. Therefore, users can obtain near-infrared lights of different intensities by setting different numbers of light-emitting components 1 according to different usage requirements or actual conditions.

[0029] Optionally, the light cone may be made of a light-guiding material, which can guide more near-infrared light to the light transmission element 13. It is understood that the light cone 12 is a structure with a larger diameter at one end than at the other end, and the diameter from one end to the other end may gradually decrease.

[0030] The number of light emitting components 1 can be determined according to the needs of operators, the requirements of near-infrared brain function imaging detection, etc. For example, the number of light emitting components 1 can be 3, 5, or 7, etc. Figure 1 The number of three light-emitting components 1 shown in the figure is only an example, and the present application does not make any specific limitation on this.

[0031] Optionally, the optical coupling member 2 can couple the multiple optical transmission members 13 into a whole by tying, binding, etc. For example, the optical coupling member 2 is configured as a strap, which can bind the multiple optical transmission members 13. For another example, the optical coupling member 2 is configured as a sleeve, which can be sleeved on the outside of the multiple optical transmission members 13 to bind the multiple optical transmission members 13.

[0032] The present application can realize stable transmission of light between the light source part 11 and the light transmission part 13 through the light cone 12, so as to guide as much near-infrared light generated by the light source part 11 as possible into the light transmission part 13, effectively improving the light guiding efficiency, and the light transmission parts 13 of multiple light-emitting components 1 can be coupled into a whole through the optical coupling part 2, so that the light intensity of the near-infrared light transmitted from the light transmission part 13 to the light-emitting probe 3 after coupling can be effectively improved, so as to meet the requirements of near-infrared detection with high reliability.

[0033] In some embodiments, Figure 2 As shown, the two ends of the light cone 12 are respectively constructed as a large diameter end and a small diameter end. The large diameter end of the light cone 12 is arranged corresponding to the light emitting side of the light source part 11, and the small diameter end of the light cone 12 is arranged corresponding to the light receiving side of the optical transmission component 13.

[0034] In this way, the light cone 12 can be adapted to the light source part 11 and the light transmission component 13 respectively to export more near-infrared light, effectively avoiding the situation where the light-emitting side of the light source part 11 and the light-receiving side of the light transmission component 13 cannot accurately correspond to each other and cause light leakage, thereby effectively improving the reliability and light guiding efficiency of the optical coupling device.

[0035] Optionally, the overall shape of the light cone 12 can be constructed as a truncated cone, the lower end surface of the truncated cone 12 can be represented as a large diameter end, the upper end surface of the truncated cone 12 can be represented as a small diameter end, the light emitting side of the light source part 11 abuts against the lower end surface of the light cone 12, and the light receiving side of the light transmission component 13 abuts against the upper end surface of the light cone 12. The near-infrared light emitted outward by the light source part 11 of the light-emitting component 1 enters the light cone 12 from the lower end surface of the light cone 12, is emitted through the upper end surface of the light cone 12, and is finally introduced into the light transmission component 13.

[0036] In some embodiments, Figure 2 As shown, the diameter of the small diameter end of the light cone 12 is the same as the diameter of the light transmission member 13 .

[0037] In this way, by setting the diameter of the small-diameter end of the light cone 12 to be the same as the diameter of the optical transmission component 13, the loss of near-infrared light during transmission can be reduced, ensuring that near-infrared light is captured and received to the maximum extent, further improving the light guiding efficiency of the light cone 12 of the optical coupling device.

[0038] In some embodiments, Figure 2 As shown, the light emitting assembly 1 includes a light exit hole 14 , and the near infrared light emitted by the light source portion 11 is emitted to the light cone 12 through the light exit hole 14 , and the diameter of the large diameter end of the light cone 12 is greater than or equal to the diameter of the light exit hole 14 .

[0039] Thus, by setting the diameter of the large diameter end of the light cone 12 to be greater than or equal to the diameter of the light exit hole 14 , more near infrared light emitted by the light source 11 can be incident on the light cone 12 , further improving the light guiding efficiency of the optical coupling device.

[0040] Optionally, the light source unit 11 may include a first component and a second component that are arranged relatively to each other, the first component is used to emit light, and the second component is used to guide the light emitted by the first component. The light exit hole 14 may be arranged between the first component and the second component, and the light emitted by the first component first passes through the light exit hole 14 to irradiate the second component, and then is transmitted to the light cone through the second component. The near-infrared light can be emitted more concentratedly by the light source unit 11 through the light exit hole 14. Preferably, the second component can be made of transparent nylon or glass material to achieve a better light guiding effect.

[0041] In some embodiments, the diameter of the light exit hole 14 ranges from 2 mm to 4 mm. The inventor has verified that for a near-infrared brain function imaging device, the diameter of the light exit hole 14 has a value range that will neither cause near-infrared light to be lost due to the light exit hole 14 being too large, nor cause near-infrared light to be blocked due to the light exit hole 14 being too small, thereby improving the reliability and accuracy of the optical coupling device.

[0042] Optionally, the diameter of the light output hole 14 ranges from 2 to 4 millimeters (mm), for example, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, and preferably 3 mm.

[0043] In a preferred embodiment, the diameter of the light exit hole 14 is 2.8 mm, and the corresponding diameter of the second component is also 2.8 mm, that is, the diameter of the output light column is 2.8 mm. Figure 1 After coupling by the optical coupling device shown, the diameter of the optical transmission component 3 is 3.2 mm. Compared with the prior art of directly using optical fiber transmission or using an optical fiber conversion device for conversion, it can significantly reduce light loss, improve light intensity, and has high reliability.

[0044] In some embodiments, the optical transmission element 13 is constructed as an optical fiber, and the diameter of the single fiber of the optical fiber ranges from 40 microns to 60 microns. For the near-infrared brain function imaging device, the single fiber diameter of the optical fiber adopts the above-mentioned value range, which can effectively increase the number of reflections of the near-infrared light inside the optical fiber, thereby reducing the energy loss of the near-infrared light. At the same time, more single fiber fibers can be accommodated in the optical fiber to improve the transmission efficiency of the near-infrared light, and it has a certain flexibility and is not easy to break.

[0045] Optionally, the single filament diameter of the optical fiber ranges from 40 to 60 micrometers (μm), for example, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, preferably 50 μm.

[0046] In some embodiments, Figure 2 As shown, the light emitting assembly 1 further includes a connecting member 15, on which the light cone 12 is mounted, and the connecting member 15 is detachably connected to the light source unit 11. The connecting member 15 allows the light source unit 11 to be securely mounted in the light emitting assembly 1, effectively preventing the light source unit 11 from falling off when the operator is using the optical coupling device, thereby greatly improving the reliability and firmness of the optical coupling device.

[0047] Optionally, the connecting member 15 may be specifically a flange or other component, which may be detachably connected to the light source unit 11 .

[0048] Optionally, the inner cavity shape of the connecting member 15 may be adapted to the outer contour shape of the light source portion 11 , and the light source portion 11 may be stably connected to the connecting member 15 in a detachable connection manner.

[0049] For example, the detachable connection may be a bolt connection, a snap connection, or a plug connection.

[0050] In some embodiments, the optical coupling device further comprises an optical coupling box, one side of which is provided with an input hole connected to the light emitting assembly 1 , and the other side of which is provided with an output hole connected to the light emitting probe 3 .

[0051] In this way, the light-emitting component 1 and the light-emitting probe 3 can be stably connected through the optical coupling box, effectively avoiding the optical coupling component 2 from being damaged during use or transportation, thereby improving the overall structural strength of the optical coupling device. In addition, the optical coupling box can have multiple input holes and output holes, so that the operator can choose the number of light-emitting components 1 connected to the optical coupling box according to different usage needs, effectively improving the universality of the optical coupling device.

[0052] An input hole is provided at one end of the optical coupling box, and an output hole is provided at the other end of the optical coupling box. The number of input holes can be multiple, and multiple light-emitting components 1 are respectively connected to the corresponding input holes on the optical coupling box. Thus, multiple beams of near-infrared light emitted by the multiple light-emitting components 1 can be integrated into one beam of near-infrared light through the optical coupling box. The integrated near-infrared light is emitted by the light-emitting probe 3 connected to the optical coupling box, thereby realizing the coupling of near-infrared light emitted by multiple light-emitting components 1.

[0053] An embodiment of the present invention further provides a near-infrared brain function imaging detection device, comprising an optical coupling device for a near-infrared brain function imaging device as described in any of the above embodiments.

[0054] The near-infrared brain function imaging detection device using the above-mentioned optical coupling device can realize stable transmission of light between the light source part 11 and the optical transmission component 13 through the light cone 12, so as to guide as much near-infrared light generated by the light source part 11 into the optical transmission component 13 as possible, effectively improving the light guiding efficiency, and the optical transmission components 13 of multiple light-emitting components 1 can be coupled into a whole through the optical coupling component 2, so that the light intensity of the near-infrared light transmitted from the optical transmission component 13 to the light-emitting probe 3 after coupling can be effectively improved, so as to meet the detection requirements of the near-infrared brain function imaging device and have high reliability.

[0055] In one embodiment of the present invention, a system combining a near-infrared brain function imaging device and TMS is provided, the system comprising a TMS device and the above-mentioned near-infrared brain function imaging detection device, wherein the TMS (Transcranial Magnetic Stimulation) device is a transcranial magnetic stimulation device.

[0056] The system using the near-infrared brain function imaging device and TMS combined with the above-mentioned near-infrared brain function imaging detection device can realize stable transmission of light between the light source part 11 and the light transmission part 13 through the light cone 12, so as to guide as much near-infrared light generated by the light source part 11 into the light transmission part 13 as possible, effectively improving the light guiding efficiency, and the light transmission parts 13 of multiple light-emitting components 1 can be coupled into a whole through the optical coupling part 2, so that the light intensity of the near-infrared light transmitted by the light transmission part 13 to the light-emitting probe 3 after coupling can be effectively improved, so as to meet the requirements of near-infrared brain function imaging detection while using the TMS device to treat the subject, so that it will not affect the treatment of the TMS device, and can obtain near-infrared data that meets the requirements, so that the near-infrared data can be used to evaluate the treatment effect of the TMS device and study the treatment mechanism of TMS for the disease.

[0057] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present application with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language used in the claims, and are not limited to the examples described in this specification or during the practice of the application, and the examples will be interpreted as non-exclusive.

[0058] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the application. This should not be interpreted as an intention that a disclosed feature that does not require protection is necessary for any claim. On the contrary, the subject matter of the present application may be less than all the features of a specific disclosed embodiment. Thus, the claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present application should be determined with reference to the full scope of the equivalent forms of the attached claims and these claims.

[0059] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An optical coupling device for a near-infrared brain function imaging device, characterized in that: include: A plurality of light-emitting components, each light-emitting component comprising a light source, a light cone and a light transmission component, wherein one end of the light cone is arranged corresponding to the light-emitting side of the light source, and the other end is arranged corresponding to the light-receiving side of the light transmission component, and the light transmission component is used to guide the near-infrared light emitted by the light source; An optical coupling member is used to couple the optical transmission members into a whole. A light-emitting probe is connected to the light-emitting side of the optical coupling member so as to emit near-infrared light transmitted through the optical transmission members coupled into a whole outwardly through the light-emitting probe.

2. The optical coupling device according to claim 1, characterized in that: The two ends of the light cone are respectively configured as a large diameter end and a small diameter end. The large diameter end of the light cone is arranged corresponding to the light emitting side of the light source part, and the small diameter end of the light cone is arranged corresponding to the light receiving side of the light transmission component.

3. The optical coupling device according to claim 2, characterized in that: The diameter of the small-diameter end of the light cone is the same as the diameter of the light transmission member.

4. The optical coupling device according to claim 1, characterized in that: The light emitting component comprises a light exit hole, and the near infrared light emitted by the light source part is emitted to the light cone through the light exit hole, and the diameter of the large diameter end of the light cone is greater than or equal to the diameter of the light exit hole.

5. The optical coupling device according to claim 4, characterized in that: The diameter of the light exit hole ranges from 2 mm to 4 mm.

6. The optical coupling device according to claim 1, characterized in that: The optical transmission component is configured as an optical fiber, and a single-filament diameter of the optical fiber ranges from 40 microns to 60 microns.

7. The optical coupling device according to claim 1, characterized in that: The light emitting assembly further comprises a connecting piece, the light cone is mounted on the connecting piece, and the connecting piece is detachably connected to the light source part.

8. The optical coupling device according to claim 1, characterized in that: The optical coupling device further comprises an optical coupling box, one side of which is provided with an input hole connected to the light emitting component, and the other side of which is provided with an output hole connected to the light emitting probe.

9. A near-infrared brain function imaging detection device, characterized in that: The optical coupling device for near-infrared brain function imaging device comprises the optical coupling device for near-infrared brain function imaging device as described in any one of claims 1 to 8.

10. A system combining a near-infrared brain function imaging device and TMS, characterized in that: The system comprises a TMS device and the near-infrared brain function imaging detection apparatus as claimed in claim 9.

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