Light source probe assembly for near-infrared brain function imaging device and imaging detection device thereof

Abstract

The utility model provides a light source probe assembly for a near-infrared brain function imaging device and a near-infrared brain function imaging detection device. The light source probe assembly comprises a shell assembly, a light source piece and a light guide piece. A mounting cavity is formed in the shell assembly, and a limiting piece is arranged in the mounting cavity. The light source part is arranged in the mounting cavity, and the first surface of the limiting part is used for bearing the light source part. The light guide part is arranged in the mounting cavity, the light guide part and the light source part are distributed on the two sides of the limiting part, the second surface of the limiting part abuts against the end, close to the light source part, of the light guide part so that a gap can be formed between one end of the light guide part and the light source part, and near-infrared light emitted by the light source part can be transmitted to the head of the examinee through the light guide part. Thus, in the using process of the light source probe assembly, the situation that the light guide part is damaged due to mutual extrusion and friction of the light source part and the light guide part is avoided, and the service life of the light source probe assembly is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of near-infrared brain function imaging, and more specifically to a light source probe assembly for a near-infrared brain function imaging device and an imaging detection device thereof. Background Art

[0002] Near-infrared brain functional imaging technology uses the characteristics of near-infrared light to detect changes in blood oxygen levels in the brain, and can evaluate the subject's brain activity in real time and non-invasively.

[0003] However, in actual use, the probe structure used in the current near-infrared brain functional imaging technology transmits the infrared light emitted by the lamp board to the subject's head through the light-guiding optical fiber. After long-term use, the direct contact between the lamp board and the light-guiding optical fiber can easily cause wear on the contact surface between the lamp board and the light-guiding optical fiber, and the light-guiding optical fiber can be easily squeezed and bent and damaged, thereby reducing the service life of the probe and may even affect the test results of the subject. Utility Model Content

[0004] In response to the above-mentioned technical problems existing in the prior art, the present application provides a light source probe assembly for a near-infrared brain function imaging device and an imaging detection device thereof, which can solve the problem in the prior art that during the use of the light source probe assembly, the light source part and the light guide part are squeezed and rubbed against each other, causing damage to the light guide part.

[0005] The present application provides a light source probe assembly for a near-infrared brain function imaging device, which includes a shell assembly, a light source component, and a light guide component. An installation cavity is formed in the shell assembly, and a limiter is provided in the installation cavity. The light source component is provided in the installation cavity, and the first surface of the limiter is used to support the light source component. The light guide component is provided in the installation cavity, and the light guide component and the light source component are distributed on both sides of the limiter. The second surface of the limiter abuts against one end of the light guide component close to the light source component, so as to form a gap between one end of the light guide component and the light source component, and the near-infrared light emitted by the light source component is transmitted to the head of the subject via the light guide component.

[0006] In some embodiments, the mounting cavity has a first cavity and a second cavity that are connected to each other, the first cavity is used to accommodate the light source component, the second cavity is used to accommodate at least part of the light guide component, and the cross-sectional area of ​​the first cavity is larger than the cross-sectional area of ​​the second cavity.

[0007] In some embodiments, the housing assembly includes an upper shell and a lower shell that are interlocked, and the mounting cavity is located in the lower shell.

[0008] In some embodiments, the shape of a portion of the outer wall of the lower shell forming the second cavity is tapered.

[0009] In some embodiments, a first convex portion is formed on an outer wall of the light guide, an upper surface of the first convex portion abuts against the second surface of the limiting member, and a side surface of the first convex portion abuts against the outer wall of the second cavity.

[0010] In some embodiments, a second protrusion is formed on the outer wall of the light guide component, and the second protrusion is arranged away from the light source component relative to the first protrusion, and the cross-sectional area of ​​the second protrusion is smaller than the cross-sectional area of ​​the first protrusion; a sealing ring is provided on the outer cover of the light guide component, and the sealing ring is against the side of the second protrusion away from the first protrusion.

[0011] In some embodiments, the upper shell includes a cover portion and a coupling portion, the coupling portion is arranged below the cover portion, the outer wall of the coupling portion is formed with a first installation limit structure, and the first cavity of the lower shell is formed with a second installation limit structure, and the first installation limit structure and the second installation limit structure are installed in coordination.

[0012] In some embodiments, a plurality of grooves are formed on an outer wall of the coupling portion.

[0013] In some embodiments, the light guide is made of transparent nylon or glass; and / or the housing assembly is made of opaque polyetheretherketone.

[0014] The present application also provides a near-infrared brain function imaging detection device, including a light source probe assembly for a near-infrared brain function imaging device according to various embodiments of the present utility model.

[0015] Compared with the prior art, the beneficial effect of the embodiments of the present application is that: the present application sets a limit member in the installation cavity of the shell assembly, and the second surface of the limit member presses against the end of the light guide member close to the light source member, so that a gap is formed between the light guide member and the light source member. In this way, the corresponding surfaces of the light source member and the light guide member distributed on both sides of the limit member can be separated, thereby avoiding direct contact between the light source member and the light guide member. During the use of the light source probe assembly, the phenomenon of damage to the light guide member caused by mutual squeezing and friction between the light source member and the light guide member can be reduced, thereby effectively improving the service life of the light source probe assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims, serve to illustrate the disclosed embodiments. Where appropriate, like reference numerals are used throughout the drawings to refer to like or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive of the embodiments of the present apparatus or method.

[0017] Figure 1 This is a perspective view of a light source probe assembly for a near-infrared brain function imaging device according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a light source probe assembly for a near-infrared brain function imaging device according to an embodiment of the present utility model;

[0019] Figure 3 This is a perspective view of the upper shell of the light source probe assembly of the near-infrared brain function imaging device according to an embodiment of the present utility model;

[0020] Figure 4 This is a stereoscopic view of the lower shell of the light source probe assembly of the near-infrared brain function imaging device according to an embodiment of the present utility model.

[0021] The components indicated by the reference numerals in the figures are:

[0022] 1. Shell assembly; 11. Mounting cavity; 111. Limiting member; 112. First cavity; 113. Second cavity; 12. Upper shell; 121. Cover portion; 122. Coupling portion; 123. First mounting limiting structure; 124. Groove; 13. Lower shell; 131. Second mounting limiting structure; 2. Light source; 3. Light guide; 31. First protrusion; 32. Second protrusion; 4. Sealing ring. DETAILED DESCRIPTION

[0023] 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 embodiments. The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific embodiments, but are not intended to limit the present application.

[0024] The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "include" or "comprises" mean that the elements preceding the term encompass the elements listed after the term, and do not exclude the possibility of also encompassing other elements. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In this application, when a specific device is described as being located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a specific device is described as being connected to another device, the specific device may be directly connected to the other device without an intervening device, or may be not directly connected to the other device but with an intervening device.

[0026] All terms (including technical 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 the meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0027] 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 part of the specification.

[0028] The present invention provides a light source probe assembly for a near-infrared brain function imaging device. Figure 1 and Figure 2 As shown, the light source probe assembly for the near-infrared brain functional imaging device includes a shell assembly 1, a light source part 2 and a light guide part 3. A mounting cavity 11 is formed in the shell assembly 1, and a limiting part 111 is provided in the mounting cavity 11. The light source part 2 is arranged in the mounting cavity 11, and the first surface of the limiting part 111 is used to support the light source part 2. The light guide part 3 is arranged in the mounting cavity 11, and the light guide part 3 and the light source part 2 are distributed on both sides of the limiting part 111. The second surface of the limiting part 111 is against one end of the light guide part 3 close to the light source part 2, so as to form a gap between one end of the light guide part 3 and the light source part 2, and the near-infrared light emitted by the light source part 2 is transmitted to the head of the subject via the light guide part 3.

[0029] Optionally, the light source 2 may be understood as a device capable of emitting near-infrared light, specifically an optical component capable of emitting light, such as an LED lamp, a laser, or the like.

[0030] Optionally, the light guide member 3 may be constructed as a long strip light guide structure, which can effectively guide the near-infrared light out, and specifically may be an optical fiber.

[0031] Optionally, the light source component 2 may be disposed on the upper shell 12 of the housing assembly 1. For example, the light source component 2 may be engaged with or bonded to the upper shell 12 of the housing assembly 1.

[0032] It is understandable that if Figure 2As shown, the first surface of the limiting member 111 may be the upper surface of the limiting member 111 , and the second surface of the limiting member 111 may be the lower surface of the limiting member 111 .

[0033] Optionally, both the first and second surfaces of the stopper 111 may be flat to increase contact stability between the light source 2 and the light guide 3. The shapes of the first and second surfaces of the stopper 111 may be annular, rectangular, or the like, and are not specifically limited in this application. In some preferred embodiments, the first and second surfaces of the stopper 111 are annular.

[0034] Optionally, the side wall and the second surface of the limiting member 111 may respectively fit into the cavity wall of the installation cavity 11 , thereby allowing the limiting member 111 to be securely installed in the installation cavity 11 .

[0035] Optionally, the central portion of the limiting member 111 may have a light-transmitting area, and the near-infrared light emitted by the light source member 2 may be transmitted to the light guide member 3 through the light-transmitting area.

[0036] It is understandable that the distance between the light source 2 and the light guide 3 should not be too large, so that the light source 2 and the light guide 3 do not touch each other, so as to ensure the light guiding efficiency of near-infrared light between the light source 2 and the light guide 3.

[0037] The present application sets a limit member 111 in the installation cavity 11 of the shell assembly 1, so as to separate the corresponding surfaces of the light source component 2 and the light guide component 3. In this way, the light source probe assembly can avoid mutual squeezing and friction between the light source component 2 and the light guide component 3, which may cause damage to the light guide component 3, during use, thereby effectively improving the service life of the light source probe assembly.

[0038] In some embodiments, as Figure 2 As shown, the mounting cavity 11 has a first cavity 112 and a second cavity 113 that are connected to each other. The first cavity 112 is used to accommodate the light source 2, and the second cavity 113 is used to accommodate at least part of the light guide 3. The cross-sectional area of ​​the first cavity 112 is larger than the cross-sectional area of ​​the second cavity 113.

[0039] In this way, the light source component 2 and the light guide component 3 can be stably mounted in the first cavity 112 and the second cavity 113 respectively, so as to increase the structural stability and enable the structural layout of the light source probe assembly to be compact and reasonable.

[0040] Optionally, to ensure the near-infrared illumination intensity of the light source probe assembly, the light source component 2 has a larger cross-sectional area than the light guide component 3 .

[0041] Optionally, the size and / or shape of the first cavity 112 may be adapted to the size and / or shape of the light source 2 , and the first cavity 112 may enable the light source 2 to be securely disposed in the mounting cavity 11 .

[0042] Optionally, the size and / or shape of the second cavity 113 is adapted to the size and / or shape of the light guide 3 , so that the light guide 3 can be securely mounted in the second cavity 113 while ensuring a compact structure.

[0043] In some embodiments, as Figure 2 As shown, the housing assembly 1 includes an upper shell 12 and a lower shell 13 that are locked together, and the mounting cavity 11 is located in the lower shell 13 .

[0044] In this way, the detachable connection between the upper shell 12 and the lower shell 13 allows the operator to complete replacement or repair in a timely and rapid manner when one or more of the light source component 2, the limit component 111 and the light guide component 3 in the shell assembly 1 fails or is damaged, which greatly facilitates the operator's assembly and disassembly operations and effectively improves the installation and use convenience of the light source probe assembly.

[0045] In some embodiments, as Figure 2 As shown, the shape of a portion of the outer wall of the lower shell 13 forming the second cavity 113 is configured to be tapered.

[0046] In this way, when the shell assembly 1 is assembled into the corresponding probe adapter, the shell assembly 1 can be stably installed in the probe adapter through the adaptability of the shapes of the probe adapter and the outer wall of the lower shell 13, thereby preventing the shell assembly 1 from shaking in the probe adapter.

[0047] In some embodiments, as Figure 2 As shown, a first convex portion 31 is formed on the outer wall of the light guide 3 , the upper surface of the first convex portion 31 abuts against the second surface of the stopper 111 , and the side surface of the first convex portion 31 abuts against the outer wall of the second cavity 113 .

[0048] In this way, through the cooperation between the first protrusion 31 and the limiting member 111, the limiting member 111 can achieve stable positioning of the light guide member 3, avoiding direct contact between the light guide member 3 and the light source member 2, and effectively ensuring the structural stability and service life of the light source probe assembly.

[0049] Optionally, the first protrusion 31 is formed in a direction perpendicular to the axial direction of the light guide 3 .

[0050] Optionally, the first protrusion 31 may be specifically annular to abut against the limiting member 111 in the circumferential direction.

[0051] In some embodiments, as Figure 2As shown, a second protrusion 32 is also formed on the outer wall of the light guide 3. The second protrusion 32 is arranged relative to the first protrusion 31 away from the light source 2, and the cross-sectional area of ​​the second protrusion 32 is smaller than the cross-sectional area of ​​the first protrusion 31. A sealing ring 4 is provided on the outer cover of the light guide 3, and the sealing ring 4 is against the side of the second protrusion 32 away from the first protrusion 31.

[0052] By providing a second protrusion 32 on the light guide 3, a accommodating cavity can be formed between the light guide 3 and the second cavity 113, and the sealing ring 4 is provided in the accommodating cavity to effectively fill the gap between the lower shell 13 and the light guide 3, thereby preventing air, moisture or other environmental media from entering the interior of the light source probe assembly, effectively improving the sealing and reliability of the light source probe assembly.

[0053] The second convex portion 32 has a smaller cross-sectional area than the first convex portion 31 , so that the second convex portion 32 can be adapted to the size of the second cavity 113 , and the structural design is more compact.

[0054] In some embodiments, as Figure 3 and Figure 4 As shown, the upper shell 12 includes a cover portion 121 and a coupling portion 122. The coupling portion 122 is arranged below the cover portion 121. The outer wall of the coupling portion 122 is formed with a first installation limit structure 123. The first cavity 112 of the lower shell 13 is formed with a second installation limit structure 131. The first installation limit structure 123 and the second installation limit structure 131 are installed in coordination.

[0055] In this way, the first installation limiting structure 123 and the second installation limiting structure 131 can cooperate with each other to achieve limiting, so that the installation direction of the upper shell 12 and the lower shell 13 is unique, and the upper shell 12 and the lower shell 13 can be tightly connected and not easy to rotate.

[0056] Optionally, the cover portion 121 and the coupling portion 122 may be fixedly connected or detachably connected. Of course, the cover portion 121 and the coupling portion 122 may also be integrally formed, which is not specifically limited in this application.

[0057] like Figure 3 As shown, one or more first installation limiting structures 123 may be provided on the outer wall of the coupling portion 122. The first installation limiting structure 123 may be in a straight line shape, a wavy line shape, or a shape with a specific angle. The shape of the first installation limiting structure 123 may be selected according to specific installation requirements and usage environment to achieve the best limiting effect. For example, in situations where it is necessary to withstand large external forces or vibrations, a wavy line shape or a shape with a specific angle may be selected to increase the strength and stability of the limiting structure. Figure 4As shown, the shape of the first installation limit structure 123 on the lower shell 13 is adapted to the shape of the second installation limit structure 131, ensuring that the upper shell 12 and the lower shell 13 can fit tightly after installation and are not prone to relative rotation, thereby effectively improving the structural stability of the light source probe assembly.

[0058] In some embodiments, as Figure 3 As shown, a plurality of grooves 124 are formed on the outer wall of the coupling portion 122 .

[0059] In the above embodiment, when the upper shell 12 and the lower shell 13 of the shell assembly 1 are buckled together and assembled, due to the multiple grooves 124 set on the outer wall of the coupling part 122, the coupling part 122 can have a certain elastic deformation during assembly, so that the pressure generated during assembly can be effectively released through the multiple grooves 124, thereby significantly reducing the assembly difficulty of the shell assembly 1.

[0060] In some embodiments, the light guide 3 is made of transparent nylon or glass; and / or the housing assembly 1 is made of opaque polyetheretherketone (PEEK).

[0061] In this way, the light guide 3 and the shell assembly 1 are made of materials with high strength and stability, which can make the light source probe assembly have excellent mechanical properties and can be used in different usage scenarios, effectively improving the universality and reliability of the light source probe assembly.

[0062] Both transparent nylon and glass materials have excellent light transmittance and can effectively transmit light. In addition, the above materials have good strength and biocompatibility, which can ensure that the light guide 3 is not prone to deformation, cracking, etc. during use, effectively improving the service life of the light source probe assembly.

[0063] PEEK offers high strength and wear resistance, providing excellent structural support and protection. Its strong biocompatibility ensures that the housing assembly 1 is not susceptible to rejection by the subject's skin during use. Made of opaque PEEK, the housing assembly 1 effectively blocks external light, preventing it from affecting the light source probe assembly.

[0064] An embodiment of the present invention further provides a near-infrared brain function imaging detection device, including a light source probe assembly for a near-infrared brain function imaging device according to various embodiments of the present invention.

[0065] The present application sets a limit member 111 in the installation cavity 11 of the shell assembly 1, and the second surface of the limit member presses against the end of the light guide member close to the light source member, so that a gap is formed between the light guide member and the light source member. In this way, the corresponding surfaces of the light source member 2 and the light guide member 3 can be separated, avoiding direct contact between the light source member 2 and the light guide member 3. During the use of the light source probe assembly, the phenomenon of mutual squeezing and friction between the light source member 2 and the light guide member 3 causing damage to the light guide member 3 can be reduced, thereby effectively improving the service life of the light source probe assembly.

[0066] Furthermore, 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., solutions that intersect various embodiments), adaptations, or changes. The elements in the claims are to be interpreted broadly based on the language employed in the claims and are not limited to the examples described in this specification or during the prosecution of the application, which examples are to be interpreted as non-exclusive.

[0067] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, those of ordinary skill in the art may 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 is not required to be protected 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 a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of this application should be determined with reference to the appended claims and the full scope of equivalents to which these claims are entitled.

[0068] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection 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 scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A light source probe assembly for a near-infrared brain function imaging device, characterized in that: include: A housing assembly having an installation cavity formed therein, wherein a limiting member is provided in the installation cavity; a light source component disposed in the mounting cavity, wherein the first surface of the limiting component is used to support the light source component; A light guide is arranged in the mounting cavity, and the light guide and the light source are distributed on both sides of the limiting member. The second surface of the limiting member is against one end of the light guide close to the light source member, so as to form a gap between one end of the light guide and the light source member. The near-infrared light emitted by the light source member is transmitted to the head of the subject via the light guide.

2. The light source probe assembly according to claim 1, characterized in that: The installation cavity has a first cavity and a second cavity that are connected to each other. The first cavity is used to accommodate the light source component, and the second cavity is used to accommodate at least part of the light guide component. The cross-sectional area of ​​the first cavity is larger than the cross-sectional area of ​​the second cavity.

3. The light source probe assembly according to claim 2, characterized in that: The housing assembly comprises an upper shell and a lower shell that are buckled together, and the mounting cavity is located in the lower shell.

4. The light source probe assembly according to claim 3, characterized in that: The shape of a portion of the outer wall of the lower shell forming the second cavity is configured to be tapered.

5. The light source probe assembly according to claim 2, characterized in that: A first convex portion is formed on the outer wall of the light guide member, the upper surface of the first convex portion abuts against the second surface of the limiting member, and the side surface of the first convex portion abuts against the outer wall of the second cavity.

6. The light source probe assembly according to claim 5, characterized in that: A second convex portion is also formed on the outer wall of the light guide component, which is arranged relative to the first convex portion and away from the light source component, and the cross-sectional area of ​​the second convex portion is smaller than the cross-sectional area of ​​the first convex portion; a sealing ring is provided on the outer cover of the light guide component, and the sealing ring is against the side of the second convex portion away from the first convex portion.

7. The light source probe assembly according to claim 3, characterized in that: The upper shell includes a cover portion and a coupling portion, the coupling portion is arranged below the cover portion, the outer wall of the coupling portion is formed with a first installation limit structure, and the first cavity of the lower shell is formed with a second installation limit structure, and the first installation limit structure and the second installation limit structure are installed in coordination.

8. The light source probe assembly according to claim 7, characterized in that: A plurality of grooves are formed on the outer wall of the coupling portion.

9. The light source probe assembly according to claim 1, characterized in that: The light guide is made of transparent nylon or glass; and / or the housing assembly is made of opaque polyetheretherketone.

10. A near-infrared brain function imaging detection device, characterized in that: The device comprises a light source probe assembly for a near-infrared brain function imaging device according to any one of claims 1 to 9.

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