A head-mounted flexible optical fiber device and its adaptive method

Abstract

The present application provides a head-mounted flexible optical fiber device and an adaptive method thereof, including a wearing body, a clamping jaw, an optical fiber probe and a probe mounting member; one end of the clamping jaw is movably connected in a first mounting hole, and the other end of the clamping jaw is used to push aside the hair on the wearer's scalp; the optical fiber probe is connected to the clamping jaw through the probe mounting member; wherein, the probe mounting member is used to adjust the elongation of the near-scalp end of the optical fiber probe relative to the clamping jaw according to the sensing result of the optical fiber probe or the sensing signal fed back by the sensor, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp. This head-mounted flexible optical fiber device has a simple structure and is convenient to use. It can not only push aside the hair at the part to be measured to avoid the interference of the hair, but also precisely and quantitatively control the feeding amount of the optical fiber probe, and timely feedback the contact condition between the optical fiber probe and the wearer's scalp, avoiding damage to the wearer's scalp, ensuring the detection accuracy of the user's brain function, and improving the light treatment effect of the user.

Description

Technical Field

[0001] This application belongs to the technical field of brain function detection, and particularly relates to a head-mounted flexible optical fiber device and an adaptive method thereof. Background Art

[0002] With the development of near-infrared spectrometers and medical analysis software, near-infrared spectroscopy technology is increasingly widely used in brain function detection. Near-infrared spectroscopy technology can assist research in multiple fields such as advanced cognition, developmental psychology, and abnormal psychology in natural settings. In a near-infrared spectrometer, an optical fiber has characteristics such as flexible light guiding, high thermal stability, insensitivity to electromagnetic interference, concentrated transmission signal energy, and low price. The near-infrared probe based on the optical fiber structure is simple in structure and flexible to use, and is an effective supplementary accessory for the spectrometer, and is favored by various industries.

[0003] Currently, University College London in the UK, Hitachi in Japan, etc. often use near-infrared light for detection in brain function imaging systems. Near-infrared light is an electromagnetic wave between visible light and mid-infrared light. Near-infrared light can penetrate between various tissues of the human body, pass through intracranial tissues, and reach deep into the brain. In brain function detection, by irradiating near-infrared light on the patient's brain, the near-infrared light reaches the blood vessels deep in the brain. The hemoglobin contained in the blood flowing in the blood vessels can absorb near-infrared light. When the brain is actively operating, in order to supply the required oxygen, the amount of hemoglobin will increase; if the amount of hemoglobin in the brain increases at the activated site corresponding to brain activity, the absorption amount of the measurement light by hemoglobin increases, resulting in a decrease in the near-infrared light finally reflected by the brain. Therefore, the difference characteristics of the absorption rate of near-infrared light by hemoglobin in the brain can be detected to detect the hemodynamic activity of the cerebral cortex. By observing this hemodynamic change, the neural activity of the brain can be inferred, and the detection of brain function can be achieved. However, the existing head-mounted flexible optical fiber device is inconvenient to use. In brain function detection, the wearer's hair is easily blocked between the probe and the scalp, affecting the transmission of near-infrared light, thereby reducing the detection accuracy of brain function. Summary of the Invention

[0004] The embodiments of this application provide a head-mounted flexible optical fiber device and an adaptive method thereof to solve the problem that in the detection of the existing head-mounted flexible optical fiber device, the wearer's hair is easily blocked between the probe and the scalp, affecting the transmission of near-infrared light, thereby reducing the detection accuracy of brain function.

[0005] The embodiments of this application provide a head-mounted flexible optical fiber device, including:

[0006] A wearing body, on the outer wall of which there are provided a number of first mounting holes, and the number of the mounting holes are annularly distributed on the outer wall of the wearing body;

[0007] A clamping jaw, one end of the clamping jaw is movably connected in the first mounting hole, and the other end of the clamping jaw is used to push aside the hair on the wearer's scalp;

[0008] A probe mounting member, the probe mounting member is mounted on the clamping jaw;

[0009] An optical fiber probe, the optical fiber probe is connected to the clamping jaw through the probe mounting member;

[0010] Wherein, the optical fiber probe includes a near-scalp end, and the probe mounting member is used to adjust the elongation of the near-scalp end of the optical fiber probe relative to the clamping jaw according to the sensing result of the optical fiber probe or the sensing signal fed back by the sensor, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

[0011] Optionally, it further includes a bracket. One end of the bracket close to the wearing body is mounted in the first mounting hole. The bracket further includes a first surface and a second surface arranged oppositely. The first surface is on the side away from the wearer's scalp, and the second surface is on the side close to the wearer's scalp. A plurality of first through holes are provided on the bracket, and the first through holes penetrate through the first surface and the second surface along a first direction, and the first direction intersects with the first surface and the second surface; One end of the probe mounting member passes through the first through hole, and the other end of the probe mounting member is connected to the clamping jaw.

[0012] Preferably, the first direction is perpendicular to the first surface and the second surface.

[0013] Optionally, the probe mounting member includes a micro-motor, a box frame and a guiding part. A sliding groove is provided inside the box frame, and the guiding part is slidably connected in the sliding groove. The micro-motor is connected to the box frame, and the box frame is connected to the clamping jaw; One end of the guiding part is connected to the output end of the micro-motor, and the other end of the guiding part is connected to the optical fiber probe. The guiding part is used to actively adjust the elongation of the near-scalp end of the optical fiber probe relative to the clamping jaw, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

[0014] Optionally, the guiding part includes a slider, a sliding rod and a lead screw. The output end of the micro-motor is connected to the lead screw, the lead screw is threadedly connected to the slider, the optical fiber probe is connected to the slider, and the slider is connected to the sliding groove through the sliding rod. The slider is used to actively adjust the elongation of the near-scalp end of the optical fiber probe relative to the clamping jaw, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

[0015] Optionally, a second through-hole for the probe mount to pass through is provided on the jaw. Along the first direction, one of the first through-holes covers at least two of the second through-holes, and both ends of the fiber optic probe pass through the first through-hole and the second through-hole respectively.

[0016] Preferably, along the first direction, the second through-holes correspond to the first through-holes one by one; a second mounting hole is provided in the middle of the mounting seat, and a part of the fiber optic probe penetrates into the second mounting hole, and both ends of the fiber optic probe pass through the first through-hole and the second through-hole respectively.

[0017] Optionally, the micro-motor includes an encoder and a controller. The encoder is connected to the output end of the micro-motor, and the input end of the micro-motor is connected to the controller.

[0018] Optionally, the micro-motor further includes a pressure sensor. The input end of the pressure sensor is connected to the output end of the micro-motor, and the output end of the pressure sensor is connected to the controller.

[0019] Optionally, the jaw includes a first clamping arm and a second clamping arm. One end of the first clamping arm is movably connected to one end of the bracket close to the wearable or in the first mounting hole. The other end of the first clamping arm is connected to the second clamping arm through a rotating shaft, and the end of the second clamping arm away from the rotating shaft is used to push aside the hair.

[0020] Optionally, the fiber optic probe includes a flexible optical fiber, a sleeve and a crystal. The sleeve is sleeved on the outer wall of one end of the flexible optical fiber, and the crystal is connected to the bottom surface of the other end of the flexible optical fiber. Both ends of the sleeve pass through the first through-hole and the second through-hole respectively, and the crystal abuts against the scalp of the wearer for transmitting near-infrared light.

[0021] Optionally, the crystal is made of a transparent material, and a spherical surface is provided at one end of the crystal in contact with the scalp of the wearer.

[0022] Optionally, the head-mounted flexible fiber optic device further includes a torsion spring. A torsion spring is connected between one end of the jaw close to the wearable and the outer wall of the wearable, and the torsion spring is used to drive the jaw so that at least a part of the surface of the jaw abuts against the scalp of the wearer.

[0023] Optionally, a limiting groove is provided on the upper surface of one end of the jaw close to the wearable, one end of the torsion spring abuts in the limiting groove, and the other end of the torsion spring is connected to the outer wall of the wearable.

[0024] Optionally, the head-mounted flexible optical fiber device further includes a composite optical fiber, a light source, a converter, and a display. The flexible optical fiber includes a first flexible optical fiber and a second flexible optical fiber. The composite optical fiber includes an incident optical fiber and a reflection optical fiber. The input end of the first flexible optical fiber is connected to the incident optical fiber. The output end of the first flexible optical fiber is connected to one end of the crystal. The other end of the crystal is connected to the input end of the second flexible optical fiber. The output end of the second flexible optical fiber is connected to the reflection optical fiber. The light source is connected to the incident optical fiber and is used to emit detection light to the wearer's head. The converter is connected to the reflection optical fiber and is used to receive the reflected optical fiber to be measured and convert the reflected optical fiber to be measured into an electrical signal. The display is connected to the converter and is used to convert the electrical signal into a digital signal and display the intensity state of the optical fiber to be measured.

[0025] Optionally, both the bracket and the jaw are arc-shaped structures.

[0026] Optionally, the wearing body is a ring structure, and a groove is provided at the bottom of the wearing body to adapt to the contour of the wearer's head and achieve a more comfortable wearing experience.

[0027] Optionally, the wavelengths of the first flexible optical fiber, the second flexible optical fiber, the input optical fiber, and the reflection optical fiber are all 730 nm, 808 nm, or 950 nm.

[0028] The embodiment of the present application provides a head-mounted flexible optical fiber self-adaptive method, including the following steps:

[0029] Use the jaw to push aside the hair on the wearer's scalp and wear the head-mounted flexible optical fiber device.

[0030] Collect the sensing results of the optical fiber probe or the sensing signals feedback by the sensor, and perform analysis and processing to obtain an adjustment signal.

[0031] Adjust the elongation of the near-scalp end of the optical fiber probe relative to the jaw according to the adjustment signal, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

[0032] A head-mounted flexible optical fiber device provided by an embodiment of the present application uses a jaw to push aside the hair on the scalp of the wearer, and adjusts the installation position of the optical fiber probe through a probe mounting member so that the optical fiber probe abuts against the scalp of the wearer; thereafter, detection light is emitted to the head of the wearer, the detection light is transmitted to the scalp of the wearer through the optical fiber probe, and then transmitted deep into the brain, the reflected light to be measured is detected, and it is converted and analyzed to obtain the brain function information of the wearer. This head-mounted flexible optical fiber device has a simple structure, can push aside the hair at the detection part of the wearer, avoid the hair of the wearer from affecting the detection result and causing detection errors, and at the same time enable the optical fiber probe to more closely abut against the scalp of the wearer, and can avoid phenomena such as the optical fiber probe being suspended, thereby improving the detection accuracy of the brain function of the wearer and realizing optical treatment of the wearer's brain. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0034] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals in the following description represent the same parts.

[0035] Figure 1 It is a first structural schematic diagram of a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0036] Figure 2 It is a second structural schematic diagram of a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0037] Figure 3 It is a mounting structure schematic diagram of a wearing body and a bracket in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0038] Figure 4 It is a first mounting structure schematic diagram of a bracket and a jaw in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0039] Figure 5 It is a second mounting structure schematic diagram of a bracket and a jaw in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0040] Figure 6 It is a mounting structure schematic diagram of a probe mounting member in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0041] Figure 7 Schematic diagram of the installation structure of the guiding part in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0042] Figure 8 Block diagram of the structure of a micro-motor, a guiding part, and an optical fiber probe in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0043] Figure 9 Block diagram of the signal transmission in a head-mounted flexible optical fiber device provided by an embodiment of the present application;

[0044] Figure 10 Schematic diagram of the structure when the optical fiber probe is specifically applied in a head-mounted optical detection treatment instrument provided by an embodiment of the present application;

[0045] Figure 11 Schematic diagram of the structure when a head-mounted flexible optical fiber device is specifically applied provided by an embodiment of the present application;

[0046] Figure 12 Flowchart of a head-mounted flexible optical fiber self-adaptive method provided by an embodiment of the present application;

[0047] In the figure: 1. Wearing body; 11. First mounting hole; 12. Groove; 2. Bracket; 21. First through hole; 3. Claw; 31. Second through hole; 32. First clamping arm; 33. Second clamping arm; 34. Limiting groove; 4. Probe mounting member; 41. Micro-motor; 411. Encoder; 412. Controller; 413. Pressure sensor; 42. Box frame; 421. Slide groove; 422. Third mounting hole; 43. Guiding part; 431. Slide block; 432. Slide rod; 433. Lead screw; 5. Optical fiber probe; 51. Flexible optical fiber; 511. First flexible optical fiber; 512. Second flexible optical fiber; 52. Sleeve; 53. Crystal; 531. Spherical surface; 6. Composite optical fiber; 61. Incident optical fiber; 62. Reflective optical fiber; 7. Light source; 8. Converter; 9. Display. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0049] The embodiments of the present application provide a head-mounted flexible optical fiber device and its adaptive method to solve the problem that in the detection of existing head-mounted flexible optical fiber devices, the hair of the wearer is easily blocked between the probe and the scalp, affecting the transmission of near-infrared light and thus reducing the detection accuracy of brain function. The head-mounted flexible optical fiber device will be described below with reference to the accompanying drawings.

[0050] As Figure 1 shown, the head-mounted flexible optical fiber device includes a wearing body 1, a clamping jaw 3, a probe mounting member 4, and an optical fiber probe 5; during use, according to the needs of the user, an optical fiber probe 5 of a suitable specification can be installed on the clamping jaw 3 through the probe mounting member 4, and then the wearing body 1 is worn on the head of the wearer. During wearing, one end of the clamping jaw 3 is movably connected in the first mounting hole 11, and the other end of the clamping jaw 3 can push aside the hair on the scalp of the wearer. The elongation of the near-scalp end of the optical fiber probe 5 relative to the clamping jaw 3 is adjusted through the probe mounting member 4 so that the optical fiber probe 5 abuts against the scalp of the wearer. The head-mounted flexible optical fiber device can be applied to the detection of various central nervous system degenerative diseases. By irradiating near-infrared light on the brain, since the hemoglobin content is different under different activity states of the brain, and at the same time, hemoglobin can absorb near-infrared light with a wavelength of 600 - 900 nm, therefore, the difference characteristics of the absorption rate of near-infrared light with a specific wavelength by hemoglobin in brain tissue can be used to detect the hemodynamic activity of the cerebral cortex. By observing this hemodynamic change, the neural activity of the brain can be inferred, thereby realizing the detection of the brain function of the user and assisting in the treatment of the user's brain.

[0051] As Figure 1 shown, in some embodiments, a plurality of first mounting holes 11 are provided on the outer wall of the wearing body 1. One end of the clamping jaw 3 is movably connected in the first mounting hole 11, and the other end of the clamping jaw 3 is used to push aside the hair on the scalp of the wearer. The optical fiber probe 5 is installed on the clamping jaw 3 through the probe mounting member 4. During use, due to the differences in the head shapes of different wearers, there will be a situation where some optical fiber probes 5 cannot contact the scalp of the wearer, resulting in missed detections. At this time, the probe mounting member 4 can actively adjust the optical fiber probe 5 to make the near-scalp end of the optical fiber probe 5 fit more stably with the scalp of the wearer, ensuring the detection and treatment effects of the brain function of the user.

[0052] As Figure 1-7As shown, in some embodiments, the head-mounted flexible optical fiber device further includes a wearing body 1, a bracket 2, a clamping jaw 3, a probe mounting member 4, and an optical fiber probe 5. One end of the bracket 2 close to the wearing body 1 is installed in the first mounting hole 11. The bracket 2 further includes a first surface and a second surface arranged opposite to each other. The first surface is on the side away from the wearer's scalp, and the second surface is on the side close to the wearer's scalp. A plurality of first through holes 21 are provided in the bracket 2. The first through holes 21 penetrate through the first surface and the second surface along a first direction, and the first direction intersects with the first surface and the second surface. One end of the probe mounting member passes through the first through hole 21, and the other end of the probe mounting member 4 is connected to the clamping jaw 3.

[0053] Among them, the wearing body 1 mainly plays a role of bearing. A plurality of first mounting holes 11 are uniformly provided on the outer wall of the wearing body 1, and the mounting holes 11 are annularly distributed on the outer wall of the wearing body 1. The wearing body 1 can adopt an annular structure, and a groove 12 is installed on the bottom surface of the wearing body 1. The wearing body 1 is placed on the wearer's head, so that the top part of the wearer's head fits on the inner wall of the groove 12. The groove 12 can play a role of limiting and make the installation of the whole device more stable. In addition, the wearing body 1 can also adopt a rubber material. The wearing body 1 adopts an arc-shaped band, and a plurality of bayonets are provided at one end of the arc-shaped band, and a buckle is provided at the other end of the arc-shaped band. The clamping position of the buckle on the bayonet can be adjusted to realize the adjustment of the size of the arc-shaped band, so as to be applicable to wearers with different head shapes.

[0054] Among them, the bracket 2 can play a role of protection. According to the detection needs of the wearer, the top end of the bracket 2 can be fixedly connected to the corresponding first mounting hole 11. The bracket 2 adopts an arc-shaped structure and is adapted to the head shape of the wearer. The number of brackets 2 can be one or more, and the number of brackets 2 is not greater than the number of first mounting holes 11. According to the detection needs, each bracket 2 can be installed in the corresponding first mounting hole 11, and the end of the bracket 2 close to the wearing body 1 is fixedly installed in the first mounting hole 11. The bracket 2 further includes a first surface and a second surface arranged opposite to each other. The first surface is on the side away from the wearer's scalp, and the second surface is on the side close to the wearer's scalp. A plurality of first through holes 21 are uniformly provided in the bracket 2. The first through holes 21 penetrate through the first surface and the second surface along a first direction, and the first direction intersects with the first surface and the second surface. Preferably, the first direction is perpendicular to the first surface and the second surface, which can ensure the stability of the installation structure in the first through hole 21.

[0055] Among them, the clamping jaw 3 is installed on one side of the bracket 2 close to the wearer's scalp. The bottom end of the clamping jaw 3 can push aside the hair of the part to be measured and expose the scalp of the part to be measured. The clamping jaw 3 can be installed directly below the bracket 2, and the top end of the clamping jaw 3 is connected to the top end of the bracket 2 or the first mounting hole 11 through a rotating shaft. In addition, both the bracket 2 and the clamping jaw 3 are arc-shaped structures and are matched with the head shape of the wearer, thus facilitating the use of the user; the clamping jaw 3 can also adopt a first clamping arm 32 and a second clamping arm 33. One end of the first clamping arm 32 is movably connected to one end of the bracket 2 close to the wearing body 1 or the first mounting hole 11, and the other end of the first clamping arm 32 is connected to the second clamping arm 33 through a rotating shaft; the first clamping arm 32 and the second clamping arm 33 can rotate relative to each other. When the optical fiber probe 5 on the first clamping arm 32 abuts against the wearer's scalp, the first clamping arm 32 will stop moving towards the wearer's scalp. At this time, the second clamping arm 33 can also be adjusted to continue moving towards the wearer's scalp, so that the optical fiber probe 5 on the second clamping arm 33 abuts against the scalp, thus preventing the optical fiber probe 5 from detaching from the scalp and ensuring the detection accuracy of each optical fiber probe 5.

[0056] In this embodiment, the optical fiber probe 5 can adopt a flexible optical fiber 51, a sleeve 52 and a crystal 53. A sleeve 52 is sleeved on the outer wall of one end of the flexible optical fiber 51, and a crystal 53 is connected to the bottom surface of the other end of the flexible optical fiber 51, so that the crystal 53 abuts against the wearer's scalp. Near-infrared light is input into the flexible optical fiber 51. The near-infrared light is incident on the wearer's scalp from the crystal 53 and penetrates deep into the brain. The near-infrared light is reflected from the wearer's scalp and transmitted to the crystal 53 after transmission. By processing and analyzing the near-infrared light reflected from the wearer's scalp, the brain function status of the wearer can be quickly detected.

[0057] Among them, the crystal 53 can adopt a transparent material, and a spherical surface 531 is provided at one end of the crystal 53 in contact with the wearer's scalp. The transparent crystal 53 can enhance the transmission effect of near-infrared light and improve the detection accuracy of brain function; the spherical surface 531 on the crystal 53 can increase the contact area with the wearer's scalp, thereby reducing the pressure between the crystal 53 and the wearer's scalp, and further improving the comfort of the wearer. In addition, one end of the crystal 53 in contact with the scalp can be processed into a spherical surface 531, and the end of the crystal 53 far from the scalp is fusion-coupled with the flexible optical fiber 51. The spherical surface 531 on the crystal 53 can smoothly contact the scalp, which can avoid scratching the scalp, thus ensuring the stability and comfort of the user's wearing and improving the user experience.

[0058] Among them, the crystal 53 is an optical device and can be coupled with an optical fiber for optical transmission; in specific applications, a fiber end face processing device can also be used to polish the end face of the flexible optical fiber 51 into a spherical surface 531 to expand the optical transmission angle. This can not only make the optical signal transmission more stable between the sender and the receiver, thereby ensuring the detection accuracy of the fiber optic probe 5 and improving the optical treatment effect, but also protect the scalp from being scratched.

[0059] In this embodiment, a torsion spring can also be installed between one end of the jaw 3 close to the wearing body 1 and the outer wall of the wearing body 1. The torsion spring can drive the jaw 3 so that at least part of the surface of the jaw 3 abuts against the scalp of the wearer. The torsion spring can adopt a torsion spring. One end of the torsion spring is connected to the outer wall of the wearing body 1, and the other end of the torsion spring is connected to the outer wall of the top end of the jaw 3; among them, the torsion spring is composed of an installation part, an adjustment part and an elastic part. The top end of the installation part is connected to the outer wall of the wearing body 1, the bottom end of the installation part is connected to one end of the elastic part, the other end of the elastic part is connected to the upper surface of the top end of the jaw 3, and the adjustment part is connected to the top end of the elastic part. The adjustment part can adjust the elongation of the elastic part, thereby prompting the jaw 3 at the bottom end of the elastic part to move towards the brain direction, which can facilitate the adjustment of the jaw 3. The limiting groove 33 is adapted to the bottom end of the torsion spring. If the inner wall of the limiting groove 34 is a curved surface, the outer wall of the bottom end of the torsion spring is also a curved surface, so that the bottom end of the torsion spring abuts against the inner wall of the limiting groove 34, which can increase the smoothness of the movement of the jaw 3. During use, a matching fiber optic probe 5 is installed in the second through hole 31, and the jaw 3 moves smoothly towards the scalp of the wearer through the torsion spring, so that it can be suitable for wearers with different head shapes.

[0060] In addition, a limiting groove 34 can be provided on the upper surface of one end of the jaw 3 close to the wearing body 1, one end of the torsion spring is abutted in the limiting groove 34, and the other end of the torsion spring is connected to the outer wall of the wearing body 1.

[0061] On the basis of the above embodiments, the present application also proposes the following embodiments.

[0062] As Figure 1 、 4 、shown in 5, in one embodiment; a second through hole 31 for the probe mounting member 4 to pass through is provided on the jaw 3. Along the first direction, one first through hole 21 covers at least two second through holes 31, and both ends of the fiber optic probe 5 pass through the first through hole 21 and the second through hole 31 respectively.

[0063] When in use, the wearable body 1 can be placed on the top of the wearer's head so that the bottom surface of the wearable body 1 is partially in contact with the scalp surface, and the hair of the part to be tested is pushed away to the outside of the bracket 2 by the clamping claw 3, so that each optical fiber probe 5 is in contact with the corresponding detection position on the scalp; then, near-infrared light is emitted to the wearer's brain, and the near-infrared light is transmitted to the wearer's scalp through the optical fiber probe 5. The near-infrared light is transmitted to the deep part of the brain, and part of the near-infrared light will be absorbed by hemoglobin. In the detection, the unabsorbed near-infrared light is reflected from the wearer's scalp after transmission. The optical fiber probe 5 can receive the near-infrared light reflected from the scalp, and the emitted near-infrared light can be analyzed to obtain the content of hemoglobin in the wearer's brain, thereby obtaining the wearer's brain function status. In the brain function detection, multiple experimental groups and reference groups can be set up, and the brain detection information of normal wearers is used as a reference, and the detection data of other wearers are compared with the normal values. According to the comparison results, the brain activity status of the wearer can be quickly judged, thereby realizing the detection of the wearer's brain function.

[0064] In this embodiment, a second through hole 31 for the probe mounting member 4 to pass through can be provided on the clamp 3, and the second through hole 31 and the first through hole 21 can be made to correspond one to one along the first direction; one end of the probe mounting member 4 can be installed in the second through hole 31, and the other end of the probe mounting member 4 can be inserted into the first through hole 21. After that, the optical fiber probe 5 is partially installed on the probe mounting member 4, so that the bottom end of the optical fiber probe 5 passes through the second through hole 31 and abuts against the wearer's scalp, and the top end of the optical fiber probe 5 passes through the first through hole 21. The optical fiber probe 5 can move smoothly between the first through hole 21 and the second through hole 31, which can facilitate the adjustment and guidance of the optical fiber probe 5.

[0065] Among them, the number of the first through holes 21 and the second through holes 31 is the same, and the second through holes 31 are arranged on the side of the first through holes 21 close to the wearer's scalp; the bracket 2 and the clamping jaws 3 can both adopt an arc structure, and both match the head shape of the wearer; the sizes of the first through holes 21 and the second through holes 31 can be different. Since the angles of the bracket 2 and the clamping jaws 3 relative to the wearing body 1 are adjustable, in order to ensure the abutment angle between the optical fiber probe 5 and the wearer's scalp, the aperture of the second through holes 31 increases successively along the radial direction away from the wearing body 1, while ensuring the stability of the overall structure of the bracket 2 and the clamping jaws 3, more activity space is provided for the optical fiber probe 5.

[0066] like Figure 1 , 5As shown, in another embodiment, the jaw 3 is provided with a second through hole 31 for the probe mounting member 4 to pass through. Along the first direction, one first through hole 21 corresponds to a plurality of second through holes 31. That is, along the first direction, one first through hole 21 covers a plurality of second through holes 31. Preferably, there is only one first through hole 21 on the bracket 2, and this first through hole 21 corresponds to all the second through holes 31 on the corresponding jaw 3. The optical fiber probe 5 is partially mounted on the probe mounting member 4, so that the top end of the optical fiber probe 5 passes through the first through hole 21, and the bottom end of the optical fiber probe 5 passes through the second through hole 31 and abuts against the scalp of the wearer. The optical fiber probe 5 can move smoothly between the first through hole 21 and the second through hole 31, which facilitates the adjustment of the optical fiber probe 5.

[0067] Among them, the number of the first through holes 21 and the second through holes 31 is different, and the number of the second through holes 31 is less than that of the first through holes 21. By adjusting the installation angle of the optical fiber probe 5, one optical fiber probe 5 can realize the detection of different parts, which can reduce the use quantity of the optical fiber probe 5 and reduce the cost of brain function detection.

[0068] Such as Figure 1 、 6 As shown in FIGS. 6 and 7, in one embodiment, the probe mounting member 4 includes a micro-motor 41, a box body frame 42 and a guiding part 43. A sliding groove 421 is provided inside the box body frame 42, and the guiding part 43 is slidably connected in the sliding groove 421. The micro-motor 41 is connected to the box body frame 42. One end of the guiding part 43 is connected to the output end of the micro-motor 41, and the other end of the guiding part 43 is connected to the optical fiber probe 5. The guiding part 43 is used to actively adjust the elongation amount of the near-scalp end of the optical fiber probe 5 relative to the jaw 3, so that the near-scalp end of the optical fiber probe 5 abuts against the scalp of the wearer.

[0069] Among them, the guiding part 43 includes a slider 431, a sliding rod 432 and a lead screw 433. The output end of the micro-motor 41 is connected to the lead screw 433. The lead screw 433 is threadedly connected to the slider 431. The optical fiber probe 5 is connected to the slider 431. The slider 431 is connected in the sliding groove 421 through the sliding rod 432. The slider 431 is used to actively adjust the elongation amount of the near-scalp end of the optical fiber probe 5 relative to the jaw 3, so that the near-scalp end of the optical fiber probe 5 abuts against the scalp of the wearer.

[0070] In this embodiment, the slider 431, the sliding rod 432 and the lead screw 433 are installed in the sliding groove 421 of the box body frame 42. The sliding rod 432 can play a guiding role to make the slider 431 slide smoothly. During operation, the micro-motor 41 is turned on. The micro-motor 41 drives the lead screw 433 to rotate. The lead screw 433 drives the slider 431 to reciprocate on the sliding rod 432. The slider 431 drives the optical fiber probe 5 to move in the direction close to or away from the scalp of the wearer, so that the near-scalp end of the optical fiber probe 5 contacts the scalp of the wearer, ensuring the detection accuracy of the brain function of the wearer.

[0071] As shown in Figure 1 , 6 , 7, and 8, in another embodiment, the micro-motor 41 includes an encoder 411, a controller 412, and a pressure sensor 413; the encoder 411 is connected to the output end of the micro-motor 41, the input end of the micro-motor 41 is connected to the controller 412, the input end of the pressure sensor 413 is connected to the output end of the micro-motor 41, and the output end of the pressure sensor 413 is connected to the controller 412.

[0072] In this embodiment, during the rotation of the micro-motor 41, the encoder 411 can detect the rotation angle of the output end of the micro-motor 41 in real time and transmit the detected information to the controller 412. According to the rotation angle, the displacement of the optical fiber probe 5 on the slider 431 can be obtained; when the optical fiber probe 5 driven by the micro-motor 41 contacts the wearer's scalp, the wearer's scalp will exert a reaction force on the optical fiber probe 5. The pressure sensor 413 at the output end of the micro-motor 41 can detect the reaction force in real time and transmit the detected data to the controller 412. The controller 412 comprehensively analyzes the angular velocity detected by the encoder 411 and the reaction force detected by the pressure sensor 413, and can more accurately judge the contact condition between the optical fiber probe 5 and the wearer's scalp, improve the detection accuracy of the overall device, and ensure its treatment effect.

[0073] In addition, the micro-motor 41 can also be a stepper motor; after wearing is completed, the controller 412 can perform self-check. At the points where the scalp is not contacted or the contact is poor, the controller 412 gives feedback to the stepper motor, and the stepper motor starts to work, driving the flexible optical fiber 51 to move on the slide bar 432 through the lead screw 433 and the slider 431; preferably, the guiding direction of the slide bar 432 is perpendicular to the scalp; when the flexible optical fiber 51 contacts the wearer's scalp and the signal contact is good, the controller 412 controls the stepper motor to stop moving; when the flexible optical fiber 51 extends too long in the hair, resulting in poor signal transmission of the flexible optical fiber 51, the stepper motor can drive the lead screw 433 and the slider 431 to reverse, so that the flexible optical fiber 51 moves away from the wearer's scalp; to avoid excessive pressure on the scalp when the flexible optical fiber 51 is fed, the pressure sensor 413 and the encoder 411 on the stepper motor can detect the force and movement condition on the flexible optical fiber 51 in real time and transmit the detected signals to the controller 412 for processing. A certain force threshold can be set through experiments. When the force on the scalp is too large, the controller 412 precisely controls the stepper motor to reverse to reduce the scalp pressure and avoid damaging the scalp.

[0074] As shown in Figure 9 , 10As shown, in one embodiment, the head-mounted flexible optical fiber device further includes a composite optical fiber 6, a light source 7, a converter 8, and a display 9. The flexible optical fiber 51 includes a first flexible optical fiber 511 and a second flexible optical fiber 512. The composite optical fiber 6 includes an incident optical fiber 61 and a reflection optical fiber 62. The input end of the first flexible optical fiber 511 is connected to the incident optical fiber 61, the output end of the first flexible optical fiber 511 is connected to one end of the crystal 53, the other end of the crystal 53 is connected to the input end of the second flexible optical fiber 512, and the output end of the second flexible optical fiber 512 is connected to the reflection optical fiber 62; the light source 7 is connected to the incident optical fiber 61 and is used to emit detection light to the wearer's head; the converter 8 is connected to the reflection optical fiber 62 and is used to receive the reflected light to be measured and convert the reflected light to be measured into an electrical signal; the display 9 is connected to the converter 8 and is used to convert the electrical signal into a digital signal and display the intensity state of the light to be measured.

[0075] In use, the light source 7 is turned on, and the light source 7 emits near-infrared light in the direction of the wearer's scalp. The near-infrared light is transmitted through the incident optical fiber 61 in the composite optical fiber 6 and the first flexible optical fiber 511 in the optical fiber probe 5 to the crystal 512. The near-infrared light is transmitted into the brain from the crystal 53, passes through the intracranial tissue of the brain, and reaches the blood vessels deep in the brain. The hemoglobin contained in the blood flowing in the blood vessels can absorb the near-infrared light, and the unabsorbed near-infrared light will be partially transmitted to the crystal 53. The near-infrared light reflected from the crystal 53 is transmitted through the second flexible optical fiber 512 in the optical fiber probe 5 and the reflection optical fiber 62 in the composite optical fiber 6, and the near-infrared light can be reflected into the converter 8. The converter 8 can convert the near-infrared light into an electrical signal and transmit the electrical signal to the display 9. The display 9 can process the electrical signal and present the detection information of the near-infrared light in the form of a digital signal on the display 9. During the detection, the brain detection information of normal users can be used as a reference, and the detection data of other users can be compared with the normal values. According to the comparison results, the brain activity status of the user can be quickly judged, so as to realize the detection of the user's brain function.

[0076] As Figure 1 、 10 As shown in FIGS. 10 and 11, in one embodiment, the wavelengths of the first flexible optical fiber 511, the second flexible optical fiber 512, the input optical fiber 61, and the reflection optical fiber 62 are all 730 nm, 808 nm, or 950 nm.

[0077] In this embodiment, the optical fiber 13 with a wavelength of 730 nm, 808 nm, or 950 nm can efficiently transmit the near-infrared light emitted by the light source 7, thus ensuring the detection accuracy of the user's brain function.

[0078] As Figure 10 、 11As shown, in one embodiment, a snap connection can be employed between the probe mount 4 and the sleeve 52. The flexible optical fiber 51 is composed of a first flexible optical fiber 511 and a second flexible optical fiber 512. That is, the sleeve 52, the first flexible optical fiber 511, and the second flexible optical fiber 512 are snap-connected to the slider 431 of the probe mount 4, thus facilitating the installation and disassembly of the entire optical fiber probe 5.

[0079] Among them, the sleeve 52 can be a rubber sleeve. The rubber sleeve has good toughness and can relieve the pressure on the scalp detection part of the wearer, thereby improving the comfort of the user's wearing. In addition, the sleeve 52 can also be a black rubber soft sleeve. The black rubber soft sleeve is tightly sleeved on the outer walls of the first flexible optical fiber 511 and the second flexible optical fiber 512, which can not only protect the flexible optical fiber 5 but also reduce the loss during the transmission of near-infrared light, thereby improving the detection accuracy of the user's brain function.

[0080] As Figure 1-12 shown, the embodiment of the present application provides a method for adapting a head-mounted flexible optical fiber, including the following steps:

[0081] Step S1, use the clamping jaws 3 to push aside the hair on the wearer's scalp and wear the head-mounted flexible optical fiber device;

[0082] Step S2, collect the sensing results of the optical fiber probe or the sensing signals fed back by the sensor, and perform analysis and processing to obtain an adjustment signal;

[0083] Step S3, adjust the elongation of the near-scalp end of the optical fiber probe 5 relative to the clamping jaws 3 according to the adjustment signal, so that the near-scalp end of the optical fiber probe 5 abuts against the wearer's scalp.

[0084] In this embodiment, according to the head shape of the wearer, after pushing aside the hair on the wearer's scalp, the optical fiber probe can send near-infrared light to the user's brain. The output signal of the near-infrared light and the near-infrared light signal fed back from the wearer's scalp are collected by the sensor, and analyzed and processed by the controller to obtain an adjustment signal. According to the adjustment signal, the controller controls the optical fiber probe 5 to fit the wearer's scalp, so as to be applicable to different wearers.

[0085] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0087] In this application, unless otherwise clearly specified and defined, for example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0088] In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0089] The above has introduced in detail the head-mounted flexible optical fiber device provided by the embodiments of this application. Specific examples are used herein to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those skilled in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A head-mounted flexible optical fiber device, characterized in that, Comprising: A wearing body, on the outer wall of which there are a number of first mounting holes, and the number of first mounting holes are annularly distributed on the outer wall of the wearing body; Jaw, one end of the jaw is movably connected in the first mounting hole, and the other end of the jaw is used to push aside the hair on the wearer's scalp; the jaw includes a first jaw arm and a second jaw arm, one end of the first jaw arm is movably connected in the first mounting hole, the other end of the first jaw arm is connected to the second jaw arm through a rotating shaft, and the end of the second jaw arm away from the rotating shaft is used to push aside the hair; Probe mounting member, the probe mounting member is mounted on the jaw; the probe mounting member includes a micro-motor, a box frame and a guiding part, a chute is provided inside the box frame, the guiding part is slidably connected in the chute, the micro-motor is connected to the box frame, and the box frame is connected to the jaw; one end of the guiding part is connected to the output end of the micro-motor, the other end of the guiding part is connected to the optical fiber probe, and the guiding part is used to actively adjust the elongation of the near-scalp end of the optical fiber probe relative to the jaw, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp; Optical fiber probe, the optical fiber probe is connected to the jaw through the probe mounting member; Wherein, the optical fiber probe includes a near-scalp end, and the probe mounting member is used to adjust the elongation of the near-scalp end of the optical fiber probe relative to the jaw according to the sensing result of the optical fiber probe or the sensing signal fed back by the sensor, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

2. The head-mounted flexible optical fiber device according to claim 1, characterized in that, The guiding part includes a slider, a sliding rod and a lead screw, the output end of the micro-motor is connected to the lead screw, the lead screw is threadedly connected to the slider, the optical fiber probe is connected to the slider, and the slider is connected to the chute through the sliding rod, and the slider is used to actively adjust the elongation of the near-scalp end of the optical fiber probe relative to the jaw, so that the near-scalp end of the optical fiber probe abuts against the wearer's scalp.

3. The head-mounted flexible optical fiber device according to claim 1, characterized in that, There is a second through hole for mounting the probe mounting member on the jaw, and the near-scalp end of the optical fiber probe passes through the second through hole.

4. The head-mounted flexible optical fiber device according to claim 1, characterized in that, The micro-motor includes an encoder and a controller, the encoder is connected to the output end of the micro-motor, and the input end of the micro-motor is connected to the controller.

5. The head-mounted flexible optical fiber device according to claim 4, characterized in that, The micro-motor further includes a pressure sensor, the input end of the pressure sensor is connected to the output end of the micro-motor, and the output end of the pressure sensor is connected to the controller.

6. The head-mounted flexible optical fiber device according to claim 1, characterized in that, The optical fiber probe includes a flexible optical fiber, a sleeve, and a crystal. The sleeve is sleeved on the outer wall of one end of the flexible optical fiber, and the crystal is connected to the bottom surface of the other end of the flexible optical fiber. The crystal abuts against the scalp of the wearer and is used to transmit near-infrared light.

7. The head-mounted flexible optical fiber device according to claim 6, wherein the crystal is made of a transparent material, and a spherical surface is provided at one end of the crystal in contact with the scalp of the wearer.

8. A self-adaptive method for a head-mounted flexible optical fiber device, implemented by using the device according to any one of claims 1-7, wherein it includes the following steps: Use the clamping jaws to push aside the hair on the scalp of the wearer, and wear the head-mounted flexible optical fiber device; Collect the sensing results of the optical fiber probe or the sensing signals fed back by the sensor, and perform analysis and processing to obtain an adjustment signal; Adjust the elongation of the near-scalp end of the optical fiber probe relative to the clamping jaws according to the adjustment signal, so that the near-scalp end of the optical fiber probe abuts against the scalp of the wearer.

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