Brain computer oxygen monitoring integrated probe

Abstract

The application relates to the field of noninvasive detection technology and discloses a brain computer oxygen monitoring integrated probe, which comprises a contact layer sheet, a plurality of groups of electrode contact sheets and an attached mounting unit. The brain computer oxygen monitoring integrated probe is stacked in the vertical direction through a layered mounting module, electrode lead wire layers, brain oxygen optical element mounting layers and electromagnetic shielding layers are arranged in the vertical direction, the functional structures required by brain electric acquisition and brain oxygen monitoring can coexist in the limited height space of the forehead, the light window of the contact layer sheet and the light hole of the mounting layer sheet form a light well in the vertical direction, the light emitting device and the light sensor are respectively located directly above the light well and keep alternating interval distribution, the space congestion problem caused by simultaneously arranging the brain electric electrode and the brain oxygen optical assembly in a single plane is avoided, and the brain electric electrode and the brain oxygen optical assembly can work in the best acquisition area under the premise of not interfering with each other.

Description

Technical Field

[0001] This invention relates to the field of non-invasive detection technology, specifically to an integrated probe for brain-computer oxygen monitoring. Background Technology

[0002] Clinical comprehensive assessment of brain function often requires simultaneous monitoring of EEG signals and cerebral oxygen saturation. However, the longitudinal height available for probe attachment in the forehead region is relatively limited, typically only 5-7 cm in adults. Existing brain oxygenation probes, requiring a minimum light source-detector distance of 3 cm to detect cortical oxygenation information, are relatively large in lateral dimensions (approximately 3.8 cm wide). EEG or BIS probes also require approximately 3 cm of contact area. When both are used simultaneously in the same forehead region, their optimal contact positions often overlap. Simply staggering their placement causes at least one sensor to deviate from its ideal anatomical position, introducing signal attenuation or artifacts and reducing monitoring accuracy. Therefore, we propose an integrated brain oxygenation monitoring probe.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated brain-computer oxygen monitoring probe to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: an integrated brain-computer oxygen monitoring probe, comprising a contact sheet, and further comprising:

[0005] Multiple sets of electrode contacts are distributed at the bottom of the contact layer for direct contact with the skin of the person being monitored and to collect information.

[0006] The mounting unit is placed on the side of the contact layer away from the contact of the person being monitored, which helps the integrated probe to be stably installed and monitored on the forehead of the person being monitored.

[0007] The attachment and mounting unit includes:

[0008] The layered installation module is located on the side of the contact layer away from the contact of the person being monitored, and is used to achieve the partitioning of vertical space by stacking multiple layers.

[0009] An adaptive installation module is positioned on the contact layer near the contact side of the person being monitored, to accommodate different forehead curvatures of the person being monitored in conjunction with the electrode contacts;

[0010] The anti-slip module is located on the side of the electrode contact pad closest to the person being monitored, and is used to adhere to the patient's forehead and prevent slippage due to sweating.

[0011] Preferably, the layered installation module includes:

[0012] The optical path layer is located on the side of the contact layer away from the contact of the person being monitored, and is used for the electrode lead routing of the electrode contact pad;

[0013] The mounting layer is located on the side of the optical path layer away from the contact layer and is used to mount the brain oxygen monitoring module.

[0014] The shielding layer is located on the side of the mounting layer away from the optical path layer. It is used to lead out the multi-core shielded cable and maintain the anti-electromagnetic interference operation of the brain computer oxygen monitoring module.

[0015] Preferably, the layered installation module further includes:

[0016] Three sets of convex rings are fixedly installed on the side of the optical path layer, the mounting layer, and the shielding layer that are close to the contact of the person being monitored. The contact layer, the optical path layer, and the mounting layer are provided with grooves that are interference fit with the convex rings on the side away from the contact of the person being monitored, in order to improve the anti-torsion and anti-loosening strength between the layers.

[0017] Multiple sets of optical windows are arranged in a circular array on the inner wall of the contact layer. The inner wall of the mounting layer is provided with multiple sets of optical holes in a circular array. The optical holes are located directly above the optical windows, and the diameter of the optical holes is larger than the diameter of the optical windows, so as to form an optical well in the integrated probe.

[0018] Two sets of wiring channels are respectively opened on the side of the contact layer away from the person being monitored and on the side of the shielding layer close to the layer to be installed. The two sets of wiring channels are connected through corresponding gaps between the optical path layer and the installation layer for wiring the EEG monitoring module and the brain oxygen monitoring module.

[0019] Preferably, the layered installation module further includes:

[0020] Multiple sets of countersunk holes, arranged in a circumferential array, are opened on the side of the mounting layer near the optical path layer for mounting brain oxygen monitoring module components;

[0021] The light emitter is detachably installed inside the countersunk hole and is used to emit monitoring light to the forehead of the person being monitored.

[0022] A light sensor, detachably installed inside a recessed hole, is used to receive the monitoring light reflected from the forehead of the person being monitored;

[0023] Multiple shielding slots are arranged in a circular array on the side of the mounting plate near the shielding plate. Shielding rings are fixedly installed inside the shielding slots to isolate the light emitter and the photosensor and prevent light interference with the monitoring results.

[0024] Preferably, the light emitter and the light sensor are distributed at intervals in multiple sets of countersunk holes arranged in a circumferential array, and the light emitter, the light sensor, and a set of light holes and light windows corresponding to the bottom of their respective mounting holes are arranged on the same straight line.

[0025] Preferably, the adaptable installation module includes:

[0026] An embedded groove is formed on the side of the contact layer closest to the contact of the person being monitored, for embedding and installing electrode contacts;

[0027] The wiring hole is located at the top center of the recessed groove and is connected to the wiring groove for the cable routing of the electrode contacts.

[0028] An annular groove is formed at the center of the side of the inner groove. A silicone ring is fixedly installed on the outer surface of the electrode contact. The silicone ring is interference-fitted with the annular groove to assist in the installation of the electrode contact and to adaptively deflect the angle in the inner groove.

[0029] Preferably, the bottom plane of the electrode contact protrudes beyond the bottom surface of the contact layer, and the electrode contact and the embedded groove are installed with an interference fit.

[0030] Preferably, the anti-slip bonding module includes:

[0031] Several silicone pillars are fixedly installed on the bottom surface of the electrode contact pad to maintain stable contact between the electrode contact pad and the skin of the person being monitored;

[0032] Miniature suction cups, located at the bottom of the silicone pillars, enhance adhesion to the skin and prevent electrode contact displacement.

[0033] Preferably, the length of the silicone pillars gradually increases from the center of the electrode contact to the outside, and the distribution density of the silicone pillars at the bottom of the electrode contact gradually increases from the center to the outside.

[0034] Preferably, a temperature sensor is fixedly installed on the outer wall of the shielding layer away from the mounting layer. The temperature sensor is an NTC thermistor mounted on the surface and monitors the temperature of the integrated probe's operating area.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] 1. This invention, by setting up a layered installation module, stacks the electrode lead routing layer, the brain oxygen optical element installation layer, and the electromagnetic shielding layer in the vertical direction, so that the functional structures required for EEG acquisition and brain oxygen monitoring can coexist in the limited height space of the forehead. The light window opened by the contact layer and the light hole opened by the installation layer form a light well in the vertical direction. The light emitter and the light sensor are located directly above the light well and are distributed alternately. This avoids the space congestion problem caused by arranging EEG electrodes and brain oxygen optical components in a single plane at the same time, so that the EEG electrodes and brain oxygen optical components can work in their optimal acquisition areas without interfering with each other.

[0037] 2. The present invention also includes an adaptive installation module with an embedded groove at the bottom of the contact layer. The electrode contacts are installed in the embedded groove, and an interference-fit silicone ring is provided between the outer surface of the electrode contacts and the inner wall of the embedded groove. The silicone ring is compressed in the annular groove in the assembled state, which forms a sealed interface to prevent external liquid from seeping in. On the other hand, the elastic recovery force of the silicone material itself allows the electrode contacts to float slightly axially and deflect angularly relative to the contact layer. When the probe is attached to the forehead of a patient with different curvatures, each electrode contact can independently adjust the orientation of its bottom surface, so that each electrode contact can maintain good contact with the local skin.

[0038] 3. This invention also incorporates an anti-slip bonding module, which fixes several silicone pillars on the bottom surface of the electrode contact piece and creates a micro-suction cup structure at the end of each silicone pillar. After the probe is attached, the silicone pillars are compressed, generating a continuous elastic rebound force to maintain the contact pressure between the electrode contact piece and the skin. When compressed, the micro-suction cup forms a local negative pressure zone with the skin surface, generating additional adsorption force. Simultaneously, the length of the silicone pillars gradually increases from the center of the electrode contact piece to the outside, and the distribution density gradually increases from the center to the outside. This ensures that when the electrode contact piece contacts the skin at an inclined angle, the longer silicone pillars on the outside contact and are compressed first, while the shorter silicone pillars on the inside contact subsequently. This achieves uniform adhesion between the entire bottom surface of the electrode contact piece and the skin, and the higher density of silicone pillars at the edges enhances the sealing effect. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is one of the exploded views of the present invention;

[0041] Figure 3 This is the second exploded view of the present invention;

[0042] Figure 4 This is a cross-sectional view of the mounting layer of the present invention;

[0043] Figure 5 This is a bottom view of the contact layer structure of the present invention;

[0044] Figure 6 This is a cross-sectional view of the contact layer sheet of the present invention;

[0045] Figure 7 For the present invention Figure 6 Enlarged view of region A in the middle;

[0046] Figure 8 This is a bottom view of the electrode contact structure of the present invention.

[0047] Figure Descriptions: 1. Contact Layer; 2. Mounting Unit; 21. Layered Mounting Module; 211. Optical Path Layer; 212. Mounting Layer; 213. Shielding Layer; 2111. Raised Ring; 2112. Groove; 2113. Light Window; 2114. Wiring Groove; 2115. Light Hole; 2121. Countersunk Hole; 2122. Light Emitter; 2123. Light Sensor; 2124. Shielding Groove; 2125. Shielding Ring; 22. Adaptive Mounting Module; 221. Embedded Groove; 222. Annular Embedded Groove; 223. Wiring Hole; 224. Silicone Ring; 23. Adhesive Anti-slip Module; 231. Silicone Pillar; 232. Miniature Suction Cup; 3. Electrode Contact; 4. Temperature Sensor. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Please see Figure 1-8 The present invention provides a technical solution: an integrated probe for brain-computer oxygen monitoring, comprising a contact sheet 1, and further comprising:

[0050] Multiple sets of electrode contacts 3 are distributed at the bottom of the contact layer 1, and are used to directly contact the skin of the person being monitored and collect information;

[0051] The attachment and installation unit 2 is set on the side of the contact layer 1 away from the contact of the person being monitored, to assist the stable installation and monitoring of the integrated probe on the forehead of the person being monitored.

[0052] The attachment mounting unit 2 includes:

[0053] The layered installation module 21 is located on the side of the contact layer 1 away from the contact of the person being monitored, and is used to achieve the partitioning of vertical space by stacking multiple layers.

[0054] The mounting module 22 is positioned on the side of the contact layer 1 closest to the person being monitored, and is used to adapt to different forehead curvatures of the person being monitored in conjunction with the electrode contact 3.

[0055] The anti-slip module 23 is located on the side of the electrode contact 3 closest to the person being monitored, and is used to attach to the patient's forehead and prevent slippage due to sweating.

[0056] The bottom of the contact layer 1 directly contacts the forehead skin. Multiple sets of electrode contacts 3 are distributed at the bottom of the contact layer 1 for collecting EEG signals. The layered mounting module 21 adopts a multi-layer stacked structure, which divides the wiring layer, the brain oxygen optical element mounting layer, and the electromagnetic shielding layer of the electrode contacts 3 into sections in the vertical direction, solving the spatial conflict problem of simultaneously placing EEG and brain oxygen sensors in the limited area of ​​the forehead. The adaptive mounting module 22 is set between the contact layer 1 and the electrode contacts 3, allowing the electrode contacts 3 to deflect slightly relative to the contact layer 1 when subjected to external pressure, thereby adapting to the curvature of different patients' foreheads. The anti-slip module 23 is directly set at the bottom of the electrode contacts 3, in contact with the patient's skin, and prevents the probe from slipping when the patient sweats or moves slightly by increasing friction and adsorption.

[0057] Please see Figures 2-3 The layered installation module 21 includes:

[0058] Optical path layer 211 is disposed on the side of contact layer 1 away from the contact of the person to be monitored, and is used for the electrode lead wiring of electrode contact 3;

[0059] Mounting layer 212 is located on the side of optical path layer 211 away from contact layer 1 and is used to mount brain oxygen monitoring module;

[0060] The shielding layer 213 is located on the side of the mounting layer 212 away from the optical path layer 211, and is used to lead out the multi-core shielded cable and maintain the anti-electromagnetic interference operation of the brain computer oxygen monitoring module.

[0061] The structure consists of three layers: optical path layer 211, mounting layer 212, and shielding layer 213, stacked sequentially from top to bottom. Optical path layer 211 is placed close to the upper part of contact layer 1, and its interior contains lead wire channels for electrode contact 3 to ensure low-impedance transmission of EEG signals. Mounting layer 212 is placed above optical path layer 211 and has multiple mounting holes for fixing optical components related to brain oxygen monitoring. Shielding layer 213 is located on the top layer and integrates a shielding layer and lead-out interfaces for multi-core shielded cables to suppress the influence of external electromagnetic interference on EEG signals. By distributing circuits and components with different functions on different vertical layers, the signal crosstalk and space constraints caused by dense wiring in a single plane are avoided.

[0062] Please see Figures 2-3 as well as Figure 5 The layered installation module 21 also includes:

[0063] Three sets of protruding rings 2111 are fixedly installed on the side of the optical path layer 211, the mounting layer 212, and the shielding layer 213 close to the contact of the person to be monitored. The contact layer 1, the optical path layer 211, and the mounting layer 212 are provided with grooves 2112 that are interference fit with the protruding rings 2111 on the side away from the contact of the person to be monitored, in order to improve the anti-torsion and anti-loosening strength between the layers.

[0064] Multiple sets of optical windows 2113 are arranged in a circular array on the inner wall of the contact layer 1. Multiple sets of optical holes 2115 are arranged in a circular array on the inner wall of the mounting layer 212. The optical holes 2115 are located directly above the optical windows 2113. The diameter of the optical holes 2115 is larger than the diameter of the optical windows 2113, which is used to form an optical well in the integrated probe.

[0065] Two sets of wiring channels 2114 are respectively opened on the side of the contact layer 1 away from the contact of the person to be monitored and on the side of the shielding layer 213 close to the layer 212 to be installed. The two sets of wiring channels 2114 are connected through the corresponding gap between the optical path layer 211 and the installation layer 212 for the wiring of the EEG monitoring module and the brain oxygen monitoring module.

[0066] Each layer has a protruding ring 2111 fixed on its lower surface, while the upper surface of the adjacent layer below has a groove 2112 that matches the shape of the protruding ring 2111. The two are connected by an interference fit, which not only improves the torsional strength between the layers and prevents relative rotation or loosening between the layers during use, but also plays an auxiliary positioning role, ensuring that the light windows 2113 and light holes 2115 between the layers can be accurately aligned. The inner wall of the contact layer 1 has multiple sets of light windows 2113 distributed in a circumferential array for transmitting the light signal required for brain oxygen monitoring. The inner wall of the mounting layer 212 also has a circumferential array. The method has light holes 2115, and each light hole 2115 is located directly above the corresponding light window 2113. Since the diameter of the light hole 2115 is larger than the diameter of the light window 2113, a vertically penetrating light well structure is formed between them. This light well allows light to pass through a large angle range, reducing the obstruction and attenuation of the light signal during vertical propagation. In addition, the upper surface of the contact layer 1 and the lower surface of the shielding layer 213 are respectively provided with cable trays 2114 for accommodating and guiding the cables of the EEG and brain oxygenation modules, so that the cables will not occupy the optical path channel when running between layers, and will not be damaged due to bending.

[0067] Secondly, the inner surfaces of both the light window 2113 and the light aperture 2115 are treated with matte black to prevent light scattering between layers, thereby ensuring the relative accuracy of brain oxygen monitoring data.

[0068] Please see Figure 4 The layered installation module 21 also includes:

[0069] Multiple sets of countersunk holes 2121 are arranged in a circular array on the side of the mounting layer 212 near the optical path layer 211 for mounting brain oxygen monitoring module components.

[0070] The light emitter 2122 is detachably installed inside the countersunk hole 2121 and is used to emit monitoring light to the forehead of the person being monitored.

[0071] The light sensor 2123 is detachably installed inside the countersunk hole 2121 and is used to receive the monitoring light reflected from the forehead of the person being monitored.

[0072] Multiple shielding slots 2124 are arranged in a circular array on the side of the mounting plate 212 near the shielding plate 213. Shielding rings 2125 are fixedly installed inside the shielding slots 2124 to isolate the light emitter 2122 and the photosensor 2123 to avoid light interference with the monitoring results.

[0073] Each countersunk hole 2121 is a cylindrical cavity of a certain depth, used to house the light emitter 2122 and the light sensor 2123 required for brain oxygen monitoring. The light emitter 2122 and the light sensor 2123 are detachably installed in their respective countersunk holes 2121 for easy maintenance and replacement. The light emitter 2122 emits near-infrared light of a specific wavelength to the patient's forehead tissue, while the light sensor 2123 receives the light signal returned after being scattered and absorbed by the tissue. The two work together to calculate the blood oxygen saturation of the local brain tissue. On the side of the mounting layer 212 near the shielding layer 213, multiple sets of shielding slots 2124 are also formed in a circumferential array. Each shielding slot 2124 has a shielding ring 2125 fixedly installed inside. The shielding ring 2125 is made of opaque material. Its function is to spatially isolate the adjacent light emitter 2122 and photosensor 2123, preventing the light emitted by the light emitter 2122 from directly passing through the interlayer gap to the photosensor 2123 without tissue, thereby avoiding light crosstalk and ensuring the accuracy of blood oxygen detection results.

[0074] The light emitter 2122 and the light sensor 2123 are spaced apart in a plurality of circumferential array of countersunk holes 2121, and the light emitter 2122, the light sensor 2123, and a set of light holes 2115 and light windows 2113 corresponding to the bottom of their respective mounting countersunk holes 2121 are arranged on the same straight line.

[0075] In multiple sets of countersunk holes 2121 arranged in a circular array, the emitters 2122 and photosensors 2123 are arranged in an alternating manner, that is, in two adjacent countersunk holes 2121, one emitter 2122 is installed and the other photosensor 2123 is installed, so that the distance between each pair of emitters 2122 and photosensors 2123 is consistent, which is beneficial to realize multi-channel synchronous acquisition. At the same time, each emitter 2122 and photosensor 2123 is set with a set of light holes 2115 and light windows 2113 at the bottom of the corresponding countersunk hole 2121 perpendicular to the direction of light. On the same straight line of the contact layer 1, that is, directly below the emitter 2122, a set of light holes 2115 and light windows 2113 are aligned in sequence. The photosensor 2123 is also aligned with a set of light holes 2115 and light windows 2113 below it. This ensures that after the light signal is emitted from the emitter 2122, it can pass through the light holes 2115 and light windows 2113 without obstruction to reach the skin surface. After being reflected by the tissue, it returns to the photosensor 2123 along the light path formed by the light holes 2115 and light windows 2113, minimizing the loss and scattering of light on the vertical path.

[0076] Please see Figures 6-7 The installation module 22 includes:

[0077] An embedded groove 221 is formed on the side of the contact layer 1 near the contact of the person to be monitored, for embedding and installing electrode contact 3;

[0078] The wiring hole 223 is opened at the top center of the embedded groove 221, and the wiring hole 223 is connected to the wiring groove 2114 for the wiring of the electrode contact 3.

[0079] An annular groove 222 is formed at the center of the side of the inner groove 221. A silicone ring 224 is fixedly installed on the outer surface of the electrode contact 3. The silicone ring 224 is interference-fitted with the annular groove 222 to assist in the installation of the electrode contact 3 and to adaptively deflect the angle in the inner groove 221.

[0080] Multiple recessed slots 221 are formed at the bottom of the contact layer 1. The shape of each recessed slot 221 matches the corresponding electrode contact 3 to accommodate the electrode contact 3. A wiring hole 223 is formed at the top center of each recessed slot 221. The wiring hole 223 extends upward and connects with the wiring groove 2114 in the optical path layer 211 to form a continuous cable channel, so that the signal line of the electrode contact 3 can be led out from the channel to the upper circuit without interfering with the optical components. In the middle of the inner sidewall of each recessed slot 221, a ring-shaped recessed slot 222 is also formed. Correspondingly, each electrode contact 3... A silicone ring 224 is fixedly installed on the outer surface of electrode contact 3. When electrode contact 3 is inserted into the inner groove 221, the silicone ring 224 and the annular groove 222 form an interference fit, that is, the silicone ring 224 is compressed in the annular groove 222. The silicone ring 224 serves as a seal to prevent sweat or disinfectant from seeping into the probe. On the other hand, because the silicone ring 224 is elastic, it allows the electrode contact 3 to undergo slight axial floating and angular deflection relative to the inner groove 221, so that the bottom of the electrode contact 3 can adapt to the curvature of the forehead of different patients, ensuring that each electrode contact 3 can maintain good contact with the skin.

[0081] The bottom plane of the electrode contact 3 protrudes from the bottom surface of the contact layer 1, and the electrode contact 3 and the inner groove 221 are installed with an interference fit.

[0082] In the assembled state, the bottom plane of the electrode contact 3 protrudes outward by a certain distance relative to the bottom surface of the contact layer 1. This ensures that when the probe is attached to the patient's forehead, the electrode contact 3 can preferentially contact the skin and be slightly pressed into the inner groove 221, while the bottom surface of the contact layer 1 maintains a small gap or light contact with the skin. This ensures sufficient contact pressure between the electrode contact 3 and the skin to reduce contact resistance, while avoiding excessive pressure on the patient's skin caused by the large area of ​​the entire contact layer 1. At the same time, the electrode contact 3 and the inner groove 221 are installed using an interference fit. That is, in the absence of external force, the outer diameter of the electrode contact 3 is slightly larger than the inner diameter of the inner groove 221, and a certain force needs to be applied to press the electrode contact 3 into the inner groove 221. The interference fit, combined with the elastic effect of the silicone ring 224, ensures that the electrode contact 3 will not fall out of the inner groove 221 under normal use, but can be pulled out with a special tool when replacement is needed.

[0083] Please see Figure 6 and Figure 8 The anti-slip module 23 includes:

[0084] Several silicone pillars 231 are fixedly installed on the bottom surface of the electrode contact 3 to maintain stable contact between the electrode contact 3 and the skin of the person being monitored.

[0085] A miniature suction cup 232 is located at the bottom of the silicone pillar 231 to enhance adhesion to the skin and prevent displacement of the electrode contact 3.

[0086] The silicone pillars 231 are arranged in an array, forming a microscopic elastic contact layer between the electrode contact 3 and the skin. When the probe is attached to the forehead, the silicone pillars 231 are compressed, generating an upward rebound force, thereby maintaining continuous contact pressure between the electrode contact 3 and the skin. Even when the patient breathes or moves slightly, stable contact can be maintained, effectively reducing the interference of motion artifacts on the EEG signal. The micro suction cup 232 is a tiny cavity structure formed by indentation on the end face of the silicone pillars 231. When the silicone pillars 231 are pressed against the skin, a local negative pressure area is formed between the micro suction cup 232 and the skin surface, thereby generating an adsorption force, further enhancing the adhesion between the electrode contact 3 and the skin, and effectively preventing probe slippage caused by sweating or the patient turning their head.

[0087] The length of the silicone pillars 231 gradually increases from the center of the electrode contact 3 outwards, and the distribution density of the silicone pillars 231 at the bottom of the electrode contact 3 gradually increases from the center outwards.

[0088] The silicone pillars 231 located in the central region of the electrode contact 3 are relatively short, while the length of the silicone pillars 231 gradually increases as they approach the outer edge of the electrode contact 3. This means that when the electrode contact 3 contacts the skin at an inclined angle, the longer silicone pillars 231 on the outer side will make contact first and generate greater compression deformation, while the shorter silicone pillars 231 on the inner side will be compressed in subsequent contacts. Eventually, all silicone pillars 231 can maintain contact with the skin when they reach equilibrium, thus achieving adaptive fit to non-parallel contact surfaces. At the same time, the distribution density of the silicone pillars 231 also shows a gradual change from low in the center to high at the periphery, that is, the number of silicone pillars 231 in the edge region of the electrode contact 3 is more dense, which enhances the adsorption force and sealing of the edge of the electrode contact 3, prevents sweat from seeping into the contact interface between the electrode contact 3 and the skin from the edge, and thus maintains a stable contact impedance.

[0089] Please see Figure 3 A temperature sensor 4 is fixedly installed on the outer wall of the shielding layer 213 away from the mounting layer 212. The temperature sensor 4 is an NTC thermistor mounted and monitors the temperature of the integrated probe's working area.

[0090] The resistance of the NTC thermistor decreases as the temperature rises. By measuring the change in its resistance, the temperature of the probe's working area can be monitored in real time, thereby monitoring the heat accumulation generated by the emitter 2122 in the brain oxygen monitoring module during operation. Since the emitter 2122, especially the near-infrared LED, generates heat during prolonged operation, if the heat cannot be dissipated in time, it may cause the temperature of the skin in contact with it to rise, posing a risk of burns. The temperature sensor 4 collects the temperature data inside the probe or on the skin surface in real time and transmits this data to the external host through the multi-core shielded cable led out from the shielding layer 213. When the temperature exceeds the preset safety threshold, the external control system can automatically reduce the driving power of the emitter 2122 or issue an alarm, thereby ensuring safety during use.

[0091] Working principle: First, the bottom of the contact layer 1 is attached to the patient's forehead area, so that each electrode contact 3 comes into contact with the skin. The electrode contact 3 will preferentially contact the skin and be slightly pressed into the inner groove 221 under pressure. At the same time, the silicone ring 224 fixedly installed on the outer surface of the electrode contact 3 forms an interference fit with the annular groove 222 on the side of the inner groove 221. The silicone ring 224 is compressed in the annular groove 222, which not only seals to prevent sweat from seeping in, but also uses its elasticity to allow the electrode contact 3 to float slightly axially and deflect angularly relative to the contact layer 1. This allows each electrode contact 3 to adapt to the curvature of different patients' foreheads, ensuring that each electrode contact 3 maintains good contact with the skin. Several silicone pillars 231 at the bottom of the electrode contact 3 are compressed after contacting the skin, generating an upward rebound force to maintain continuous contact pressure. At the same time, the micro suction cups 232 at the bottom of the silicone pillars 231 form a local negative pressure area with the skin surface, generating adsorption force and enhancing adhesion to prevent the probe from slipping when sweating or when the patient moves.

[0092] After the probe is fixed, the wiring groove 2114 arranged inside the optical path layer 211 is connected to the wiring hole 223 at the top of the embedded groove 221 to form a continuous cable channel, so that the EEG signal cable collected by the electrode contact 3 can be led out to the upper circuit through the channel without interfering with the optical components. The mounting layer 212 is set above the optical path layer 211. Multiple sets of countersunk holes 2121 are opened in a circumferential array on the side close to the optical path layer 211. Each countersunk hole 2121 is detachably installed with a light emitter 2122 and a photosensor 2123. The light emitter 2122 emits near-infrared light of a specific wavelength to the patient's forehead tissue, and the photosensor 2123 receives the light signal returned after being scattered and absorbed by the tissue. The two work together to calculate the blood oxygen saturation of the local brain tissue.

[0093] During optical path transmission, the optical path layer 211, mounting layer 212, and shielding layer 213 are connected by an interference fit between a convex ring 2111 and a groove 2112. The convex ring 2111 is fixedly installed on the side of each layer closest to the contact of the person being monitored, and the groove 2112 is opened on the side of the adjacent layer away from the contact of the person being monitored. This interlocking structure improves the torsional strength between the layers, prevents relative rotation or loosening between the layers, and ensures precise alignment between the light window 2113 and the light aperture 2115. The shielding layer 213 is located on the top layer and integrates a shielding layer and a multi-core shielded cable lead-out interface inside. It is used to suppress the influence of external electromagnetic interference on the EEG signal, and transmits the collected EEG signal and brain oxygen signal to the external host through the multi-core shielded cable.

[0094] A temperature sensor 4, which is mounted on the outer wall of the shielding layer 213 away from the mounting layer 212, is fixedly installed. This sensor monitors the temperature of the probe's working area in real time. When the accumulated heat generated by the light emitter 2122 during operation causes the temperature to exceed the preset safety threshold, the external control system automatically reduces the driving power of the light emitter 2122 or issues an alarm to prevent skin burns.

Claims

1. A brain-computer integrated oxygen monitoring probe, comprising a contact sheet (1), characterized in that: Also includes: Multiple sets of electrode contacts (3) are distributed at the bottom of the contact layer (1) for direct contact with the skin of the person being monitored and to collect information; The attachment unit (2) is set on the side of the contact layer (1) away from the contact of the person to be monitored, to assist the stable installation and monitoring of the integrated probe on the forehead of the person to be monitored; The attachment mounting unit (2) includes: The layered installation module (21) is located on the side of the contact layer (1) away from the contact of the person to be monitored, and is used to realize the partitioning of vertical space by using multiple layers stacked; An adaptive installation module (22) is set on the side of the contact layer (1) close to the contact of the person to be monitored, and is used to cooperate with the electrode contact (3) to adapt to the different curvatures of the forehead of the person to be monitored; The anti-slip module (23) is located on the side of the electrode contact (3) close to the contact of the person to be monitored, and is used to attach to the patient's forehead and prevent sweating and displacement.

2. The integrated brain-computer oxygen monitoring probe according to claim 1, characterized in that: The layered installation module (21) includes: The optical path layer (211) is located on the side of the contact layer (1) away from the contact of the person to be monitored, and is used for the electrode lead wiring of the electrode contact (3); The mounting layer (212) is located on the side of the optical path layer (211) away from the contact layer (1) and is used to install the brain oxygen monitoring module; The shielding layer (213) is located on the side of the mounting layer (212) away from the optical path layer (211) and is used to lead out the multi-core shielded cable and maintain the anti-electromagnetic interference operation of the brain computer oxygen monitoring module.

3. The integrated brain-computer oxygen monitoring probe according to claim 2, characterized in that: The layered installation module (21) also includes: Three sets of convex rings (2111) are fixedly installed on the side of the optical path layer (211), the mounting layer (212), and the shielding layer (213) close to the contact of the person to be monitored. The contact layer (1), the optical path layer (211), and the mounting layer (212) are provided with grooves (2112) that are interference fit with the convex rings (2111) on the side away from the contact of the person to be monitored, in order to improve the anti-torsion and anti-loosening strength between the layers. Multiple sets of optical windows (2113) are arranged in a circular array on the inner wall of the contact layer (1). The inner wall of the mounting layer (212) is provided with multiple sets of optical holes (2115) in a circular array. The optical holes (2115) are located directly above the optical windows (2113). The diameter of the optical holes (2115) is larger than the diameter of the optical windows (2113) to form an optical well in the integrated probe. Two sets of wiring channels (2114) are respectively opened on the side of the contact layer (1) away from the contact of the person to be monitored and on the side of the shielding layer (213) close to the layer (212) to be installed. The two sets of wiring channels (2114) are connected through the corresponding gap between the optical path layer (211) and the installation layer (212) for the wiring of the EEG monitoring module and the brain oxygen monitoring module.

4. The integrated brain-computer oxygen monitoring probe according to claim 3, characterized in that: The layered installation module (21) also includes: Multiple sets of countersunk holes (2121) are arranged in a circular array on the side of the mounting layer (212) near the optical path layer (211) for mounting brain oxygen monitoring module components; The light emitter (2122) is detachably installed inside the countersunk hole (2121) and is used to emit monitoring light to the forehead of the person being monitored; A light sensor (2123) is detachably installed inside the countersunk hole (2121) to receive the monitoring light reflected from the forehead of the person being monitored; Multiple shielding slots (2124) are arranged in a circular array on the side of the mounting plate (212) near the shielding plate (213). A shielding ring (2125) is fixedly installed inside the shielding slot (2124) to isolate the light emitter (2122) and the photosensor (2123) to avoid light interference with the monitoring results.

5. The integrated brain-computer oxygen monitoring probe according to claim 4, characterized in that: The light emitter (2122) and the light sensor (2123) are spaced apart in a plurality of circumferential array of countersunk holes (2121), and the light emitter (2122), the light sensor (2123), and a set of light holes (2115) and light windows (2113) corresponding to the bottom of their own mounting countersunk holes 2121 are arranged on the same straight line.

6. The integrated brain-computer oxygen monitoring probe according to claim 5, characterized in that: The adaptive installation module (22) includes: An embedded groove (221) is formed on the side of the contact layer (1) near the contact of the person to be monitored, for embedding and installing electrode contact (3). The wiring hole (223) is opened at the top center of the embedded groove (221), and the wiring hole (223) is connected to the wiring groove (2114) for the wiring of the electrode contact (3). An annular groove (222) is formed at the center of the side of the inner groove (221). A silicone ring (224) is fixedly installed on the outer surface of the electrode contact (3). The silicone ring (224) is interference-fitted with the annular groove (222) to assist in the installation of the electrode contact (3) and to adaptively deflect the angle in the inner groove (221).

7. The integrated brain-computer oxygen monitoring probe according to claim 6, characterized in that: The bottom plane of the electrode contact (3) protrudes from the bottom surface of the contact layer (1), and the electrode contact (3) and the inner groove (221) are installed with an interference fit.

8. The integrated brain-computer oxygen monitoring probe according to claim 7, characterized in that: The anti-slip bonding module (23) includes: Several silicone pillars (231) are fixedly installed on the bottom surface of the electrode contact (3) to maintain stable contact between the electrode contact (3) and the skin of the person being monitored; A micro suction cup (232) is located at the bottom of the silicone pillar (231) to enhance adhesion to the skin and prevent displacement of the electrode contact (3).

9. The integrated brain-computer oxygen monitoring probe according to claim 8, characterized in that: The length of the silicone pillars (231) gradually increases from the center of the electrode contact (3) outwards, and the distribution density of the silicone pillars (231) at the bottom of the electrode contact (3) gradually increases from the center outwards.

10. The integrated brain-computer oxygen monitoring probe according to claim 9, characterized in that: A temperature sensor (4) is fixedly installed on the outer wall of the shielding layer (213) away from the mounting layer (212). The temperature sensor (4) is an NTC thermistor mounted and monitors the temperature of the integrated probe's operating area.

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