Electroencephalogram and near infrared spectrum combined device

Abstract

The utility model provides an electroencephalogram and near infrared spectrum combined device, and belongs to the technical field of medical auxiliary instruments. The combined device comprises a cap body, a near-infrared probe, an electroencephalogram electrode and a liner, the near-infrared probe, the electroencephalogram electrode and the liner are arranged on the cap body, the cap body is used for being worn on the head of an object, an adapter used for fixing the near-infrared probe and an electrode holder used for fixing the electroencephalogram electrode are arranged on the cap body, and the adapter and the electrode holder are each provided with a head attaching end. A first thickness is formed between the end surface of the head fitting end of the electrode holder and the cap body part corresponding to the electrode holder; the gasket is located between the head attaching end of the adapter and the cap body and arranged on the adapter in a sleeving mode so as to form a second thickness between the end face of the head attaching end of the adapter and the cap body part corresponding to the adapter, and the difference between the first thickness and the second thickness is smaller than 1 mm. The combined device can meet the requirement for near-infrared and electroencephalogram synchronous detection.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a device for combining electroencephalography (EEG) and near-infrared spectroscopy. Background Technology

[0002] Functional near-infrared spectroscopy (FIR) is based on the neurovascular coupling mechanism. By utilizing the differences in near-infrared light absorption by hemoglobin components, it can effectively acquire information on changes in oxyhemoglobin and deoxyhemoglobin in the cerebral cortex, thereby describing the brain's activity state. Electroencephalography (EEG) is the overall effect of the electrical activity of a large number of brain nerve cells in a highly correlated state on the scalp. EEG is a technique that amplifies and records the bioelectrical activity of human brain tissue, playing a significant role in the diagnosis of neurological diseases.

[0003] In related technologies, when combining EEG and near-infrared spectroscopy, some EEG / NIR spectroscopy devices integrate the electrode holder and the adapter for the near-infrared probe onto a head cap. The head cap is then worn on the subject's head to ensure a close fit between the holder and adapter and the scalp. However, the near-infrared probe cannot be completely attached to the scalp during use. Even slight movement by the subject can cause the probe to wobble, resulting in motion artifacts and preventing synchronized detection by the near-infrared probe and the EEG electrodes. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of this application is to provide a device for combining electroencephalography (EEG) and near-infrared spectroscopy. This device can meet the requirements for simultaneous detection of near-infrared spectroscopy and EEG.

[0005] The technical solution adopted in this embodiment of the utility model is:

[0006] A device for combining electroencephalography (EEG) and near-infrared spectroscopy includes a cap and a near-infrared probe, EEG electrodes, and a pad disposed on the cap, wherein:

[0007] The cap is for wearing on the head of an object. The cap is provided with an adapter for fixing a near-infrared probe and an electrode holder for fixing an EEG electrode. The adapter and the electrode holder each have a head-fitting end. There is a first thickness between the end face of the head-fitting end of the electrode holder and the cap part corresponding to the electrode holder.

[0008] The pad is located between the head-fitting end of the adapter and the cap body and is fitted onto the adapter to form a second thickness between the end face of the head-fitting end of the adapter and the corresponding cap body portion of the adapter, wherein the difference between the first thickness and the second thickness is less than 1 mm.

[0009] In some embodiments, the electrode holder comprises a holder body and a gasket connected to the holder body, the holder body fixing the electroencephalogram electrode, and the gasket forming the head-adapted end of the electrode holder.

[0010] In some embodiments, the electrode holder comprises a holder body, the holder body fixing the electroencephalogram electrode, and the holder body forming the head-adapted end of the electrode holder.

[0011] In some embodiments, the cap body is provided with a wire bundling assembly.

[0012] In some embodiments, the wire bundling assembly comprises a first wire bundling assembly and a second wire bundling assembly, the first wire bundling assembly being used to bundle the first cable connected to the near-infrared probe, and the second wire bundling assembly being used to bundle the second cable connected to the electroencephalogram electrode.

[0013] In some embodiments, the first wire bundling assembly is a wire bundling band, two ends of the wire bundling band being connected to the cap body respectively, the wire bundling band being used to press the first cable on the cap body, and at least one end of the wire bundling band being detachably connected to the cap body.

[0014] In some embodiments, the first wire bundling assembly is located in the region between the plurality of adapters on the cap body, and the number of the first wire bundling assemblies is at least three.

[0015] In some embodiments, the first wire bundling assembly is located in the parietal lobe region and / or the occipital lobe region of the cap body.

[0016] In some embodiments, the first thickness is 3-5 mm.

[0017] In some embodiments, the cap body is made of light-shielding material.

[0018] Compared with the prior art, the embodiments of the utility model have the beneficial effects that:

[0019] The electroencephalogram and near-infrared spectrum combined device can ensure that the end surface of the head-adapted end of the adapter and the end surface of the head-adapted end of the electrode holder can be well attached to the scalp of the examinee together in the case of wearing the cap, thereby meeting the requirements of near-infrared and electroencephalogram synchronous detection. Meanwhile, compared with not adding the gasket, adding the gasket can support the adapter and the cap body, so that the near-infrared and electroencephalogram synchronous detection can be stably performed when the electroencephalogram and near-infrared spectrum combined device is used. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings, which are not necessarily drawn to scale, like numerals describe similar components throughout the several views. The drawings illustrate various embodiments in accordance with the present application and, as such, should not be construed to limit the scope of the present application, which is set forth in the claims. Where appropriate, the same reference numerals throughout the drawings have been used to designate like components.

[0021] Figure 1 It is a structural schematic view of the electroencephalogram and near-infrared spectrum combined device of the embodiment of the present application;

[0022] Figure 2 It is a structural schematic view of the first beam assembly of the embodiment of the present application;

[0023] Figure 3 It is a structural schematic view of the adapter of the embodiment of the present application;

[0024] Figure 4 It is a structural schematic view of the electrode holder of the embodiment of the present application;

[0025] Figure 5 It is a sectional view of the adapter assembled on the cap body of the embodiment of the present application;

[0026] Figure 6 It is a sectional view of the electrode holder assembled on the cap body of the embodiment of the present application.

[0027] In the drawings: 1, cap body; 2, gasket; 3, adapter; 31, first head fitting end; 32, first annular groove; 4, electrode holder; 41, second head fitting end; 42, second annular groove; 43, gasket; 5, first beam assembly; 51, snap buckle; 6, near-infrared probe; 7, first cable. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "comprise", "include" and similar terms mean that the elements or objects before these terms encompass the elements or objects listed after these terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0030] In order to keep the following description of the embodiments of the present application clear and concise, detailed descriptions of known functions and known components are omitted.

[0031] As shown in Figure 1 and Figure 2 , the present application provides an electroencephalogram and near-infrared spectrum combined device, which mainly comprises a cap body 1, a near-infrared probe 6, an electroencephalogram electrode (not shown in the figure) and a gasket 2 arranged on the cap body 1, wherein, Figure 1 The inner side of the head cap is shown in the figure.

[0032] The cap body 1 is used to be worn on the head of the object, and the cap body 1 is provided with an adapter 3 and an electrode seat 4. The adapter 3 is used to fix the near-infrared probe 6, and the electrode seat 4 is used to fix the electroencephalogram electrode. The near-infrared probe 6 comprises a transmitting probe and a receiving probe, the transmitting probe is mainly used to emit near-infrared light to the cerebral cortex of the subject, and the receiving probe is used to receive the output near-infrared light scattered by the cerebral cortex, so that the concentration changes of oxyhemoglobin and deoxyhemoglobin in the human body tissue, and other parameters reflecting the degree of brain activity can be detected according to the near-infrared light received by the receiving probe. The electroencephalogram electrode is mainly used to measure and record the electrical activity of the neurons in the brain, so as to help doctors diagnose and monitor the brain function of the patient.

[0033] As shown in Figure 3 and Figure 4 , the adapter 3 of the present embodiment has a first head-adhering end 31, and the electrode seat 4 has a second head-adhering end 41. The head-adhering end can be understood as an end for adhering to the scalp. The end surface of the second head-adhering end 41 of the electrode seat 4 has a first thickness H1 between the corresponding part of the cap body 1 of the electrode seat 4, as shown in Figure 6 .

[0034] Further, the gasket 2 of the present embodiment is located between the head-adapted end of the adapter 3 and the cap 1 and is sleeved on the adapter 3 to form a second thickness H2 between the end face of the head-adapted end of the adapter 3 and the cap 1 portion corresponding to the adapter 3, as shown in Figure 5 It should be noted that the second thickness H2 of the present embodiment not only includes the thickness of the gasket 2, but also the sum of the thickness of the gasket 2 and the thickness of the head-adapted end of the adapter 3.

[0035] The difference between the first thickness H1 and the second thickness H2 of the present embodiment is less than 1 mm, so that the electroencephalogram and near-infrared spectroscopy combined device can ensure that the end face of the head-adapted end of the adapter 3 and the end face of the head-adapted end of the electrode seat 4 can be well adapted to the scalp of the subject when the subject wears the head cap, so as to meet the synchronous detection requirements of near-infrared and electroencephalogram. At the same time, compared with not adding a gasket, adding a gasket can support the adapter 3 and the cap 1, and stable detection can be performed during detection.

[0036] In some embodiments, the first thickness H1 between the end face of the second head-adapted end 41 of the electrode seat 4 and the cap 1 portion corresponding to the electrode seat 4 can be 3-5 mm, for example, it can be 3 mm, 4 mm, 5 mm, etc., so as to avoid that the first thickness H1 is too large and affects the acquisition of electroencephalogram signals. As for the second thickness H2, the thickness of the gasket 2 can be adjusted according to the first thickness H1, so as to ensure that the difference between the first thickness H1 and the second thickness H2 is within the range of 1 mm.

[0037] In some embodiments, the second thickness H2 can be 3-5 mm, for example, it can be 3 mm, 4 mm, 5 mm, etc., so as to avoid that the second thickness H2 is too large and affects the acquisition of near-infrared data. As for the first thickness H1, it can be adjusted according to the second thickness H2, so as to ensure that the difference between the first thickness H1 and the second thickness H2 is within the range of 1 mm.

[0038] In some embodiments, the cap 1 can be provided with a first reserved hole (not shown in the figure) and a second reserved hole (not shown in the figure), and the adapter 3 is installed in the first reserved hole, and the electrode seat 4 is installed in the second reserved hole. Exemplarily, as shown in Figure 3 and Figure 4 The adapter 3 can be provided with a first annular groove 32, and the electrode seat 4 can be provided with a second annular groove 42. The adapter 3 is clamped in the first reserved hole on the cap 1 through the first annular groove 32 thereon, and the electrode seat 4 is clamped in the second reserved hole on the cap 1 through the second annular groove 42 thereon.

[0039] The human brain can be divided into four functional areas: frontal lobe area, parietal lobe area, temporal lobe area and occipital lobe area. In some embodiments, a plurality of electrode holders 4 and adapters 3 can be arranged on the portions of the cap 1 corresponding to the four functional areas, and the pads 2 can be respectively sleeved on the plurality of adapters 3, so as to ensure that each adapter 3 can be attached to the head of the subject.

[0040] In some embodiments, the structure of each pad 2 on the cap 1 can be a sheet structure, and the pad 2 is provided with a first through hole and a second through hole. The pad 2 is sleeved on the adapter 3 through the first through hole, and the second through hole of the pad 2 is opposite to the electrode holder 4, the aperture of the second through hole is larger than the outer diameter of the electrode holder 4, and the electrode holder 4 can be exposed through the second through hole, so that the electrode holder 4 can be attached to the head of the subject through the second through hole of the pad 2.

[0041] In some embodiments, the material of the pad 2 can be a material with a certain flexibility such as silica gel, so that the pad 2 can be bent along with the cap 1 to facilitate the adapter 3 to be attached to the head of the subject.

[0042] As shown in Figure 4 some embodiments, the electrode holder 4 can be configured to include a seat body and a gasket 43 connected to the seat body.

[0043] The seat body is used to fix the electroencephalogram electrode, and the gasket 43 is located on the side of the cap 1 facing the head, and the gasket 43 is used to be attached to the head of the subject to form a head-attached end of the electrode holder 4.

[0044] The seat body can be the original seat body structure of the electrode holder 4, and the gasket 43 can be an added part, so that the structure of the electrode holder 4 does not need to be improved, and the gasket 43 can ensure that the electrode holder 4 and the adapter 3 can be attached to the head of the subject at the same time.

[0045] As for the structure and material of the gasket 43, the present application does not make specific limitations. The shape of the gasket 43 can be circular / rectangular or irregular shape, etc. The material of the gasket 43 can be silica gel material or plastic material.

[0046] As for the connection structure of the gasket 43 and the seat body, the present application also does not make specific limitations. The gasket 43 can be directly pasted on the seat body, or the seat body and the gasket 43 are respectively provided with coaxial bolt holes, and the gasket 43 and the seat body are connected together through bolts.

[0047] In some embodiments, the gasket 43 and the seat body are detachably connected, so as to adjust the specific value of the first thickness H1 according to the real-time detection needs.

[0048] In addition, in the embodiment, the gasket 43 and the seat body of the electrode seat 4 can each have a coaxially arranged central hole, and conductive paste can be applied to the central holes of the gasket 43 and the electrode seat 4, so as to facilitate the collection of the electroencephalogram signal.

[0049] Of course, in other embodiments, the electrode seat 4 can also be configured to only include a seat body structure for fixing the electroencephalogram electrodes, and the entire seat body forms the head-adhering end of the electrode seat 4. In order to ensure that the plurality of electrode seats 4 and the adapter 3 are conveniently adhered to the head of the subject, the height of the electrode seat 4 can be increased, so as to ensure that the end face of the second head-adhering end 41 thereon is adhered to the head of the subject, so that the corresponding gasket 43 is not required, and the assembly process is simplified.

[0050] In some embodiments, the cap body 1 is provided with a wire bundling assembly for bundling the cables connected to the infrared probe and / or the electroencephalogram electrodes together, so as to improve the aesthetics of the entire cap body 1, and also prevent the cables from being entangled or covering the electroencephalogram electrode pads.

[0051] The wire bundling assembly can be configured in any structural shape, such as a bandage or a rope, as long as it can bundle the cables and does not affect the signal collection.

[0052] As shown in Figure 2 some embodiments, the wire bundling assembly can be configured to include two parts, i.e., a first wire bundling assembly 5 and a second wire bundling assembly (not shown in the figure).

[0053] The first wire bundling assembly 5 is used to bundle the first cable 7 connected to the near-infrared probe 6, and the second wire bundling assembly (not shown in the figure) is used to bundle the second cable (not shown in the figure) connected to the electroencephalogram electrodes. By providing two sets of wire bundling assemblies to bundle the first cable 7 and the second cable, respectively, the two cables can be prevented from being confused, and the cables can be conveniently stored after the examination is completed.

[0054] As shown in Figure 2 some embodiments, the first wire bundling assembly 5 can be configured as a wire bundling band, and the two ends of the wire bundling band can be connected to the cap body 1, respectively. The first cable 7 can be pressed between the adjacent electrode seats 4 or adapters 3 on the cap body 1 by the wire bundling band, so as to improve the stability of the first cable 7 fixed on the cap body 1.

[0055] Preferably, the wire bundling band can be configured as an elastic elastic band structure, and more first cables 7 can be better bundled together by the elastic band.

[0056] In some embodiments, at least one end of the cable tie can be detachably connected with the cap 1. The end of the cable tie can be separated from the cap 1 first, then the first cable 7 can be gathered between the cable tie and the cap 1, and finally the end of the cable tie separated from the cap 1 can be connected with the cap 1, so as to realize the gathering of the first cable 7. The structure improves the convenience of using the cable tie.

[0057] Of course, in other embodiments, both ends of the cable tie can be detachably connected with the cap 1, so that the cable tie can be replaced or cleaned conveniently.

[0058] As for the connection structure form of the cable tie and the cap 1, the present application does not make specific limitation, as long as it is convenient for detachable connection. For example, in some embodiments, both ends of the cable tie can be connected with the cap 1 through the snap fastener 51 respectively. The end of the cable tie can be connected with the female buckle, and the cap 1 can be connected with the male buckle correspondingly. Alternatively, the end of the cable tie can be connected with the male buckle, and the cap 1 can be connected with the female buckle correspondingly.

[0059] In some embodiments, the first cable assembly 5 can be located in the area between the plurality of adapters 3 on the cap 1, so as to gather the first cables 7 of the plurality of connection adapters 3 nearby.

[0060] In some embodiments, as shown in Figure 2 , the first cable assembly 5 can include two parts, i.e. the first part and the second part. The first part of the cable assembly is located in the area between the plurality of adapters 3 on the cap 1, and the second part of the cable assembly is located on the edge of the cap 1.

[0061] Through the first part of the cable assembly, the end of the first cable 7 close to the connected near-infrared probe 6 can be gathered first, and then through the second part of the cable assembly, the part of the first cable 7 away from the connected near-infrared probe 6 can be gathered, so as to further increase the cable storage effect and overall aesthetics of the cable assembly.

[0062] As shown in Figure 2 , in some embodiments, the number of the first cable assembly 5 can be at least three. At least two of them are located on the outer periphery of the cap 1, and at least one of them is located in the parietal region and / or the occipital region of the cap 1.

[0063] Preferably, the first cable assembly 5 of the present embodiment is located in the parietal region and / or the occipital region of the cap 1.

[0064] As shown in Figure 2 , the first part of the first cable assembly 5 can be located in the parietal region, and the second part of the first cable assembly 5 can be located in the occipital region, so that the cable can be fixed at multiple positions on the cap 1, and the setting position of the first cable assembly 5 also conforms to the position of the cable. Such design can increase the cable storage effect of the cable assembly.

[0065] In some embodiments, the material of the cap 1 can be a light-blocking material, such as a light-blocking elastic cloth, so as to prevent the near-infrared probe 6 in the working state from being disturbed by external light, thereby improving the signal quality.

[0066] Alternatively, the side of the cap 1 facing the head has a light-blocking layer and / or the side away from the head has a light-blocking layer, which can be cloth or the like with light-blocking function. Through the light-blocking layers inside and outside, the near-infrared probe 6 in the working state can also be prevented from being disturbed by external light, thereby improving the signal quality.

[0067] In addition, although the exemplary embodiments have been described herein, the scope of their protection is limited by the claims which follow, that scope being understood as not limited to what is described in the specification but only by what can be claimed. The exemplary embodiments described herein will now be described.

[0068] The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) can be used in combination with each other. Other embodiments will be apparent to those of ordinary skill in the art upon reviewing the above description. Additionally, in the specific description above, various features can be grouped together or described in a single embodiment for the purpose of streamlining the disclosure. This should not be interpreted as intending that an unclaimed aspect is essential to any claim. Rather, inventive subject matter can lie in less than all features of a particular disclosed embodiment. Therefore, the claims hereinafter appended should not be limited to the features described in the specific examples, but should be given the full scope of their appended claims per the area of patent law, including the full appreciation of equivalents. The claims hereinafter appended are not to be interpreted as a limitation on claimed subject matter but rather as illustrative examples of the many possible embodiments within the scope of the disclosed subject matter.

[0069] The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. An electroencephalogram and near-infrared spectroscopy combined device, characterized by comprising: The cap body is used for wearing on the head of a subject, and the cap body is provided with an adapter for fixing a near-infrared probe and an electrode seat for fixing an electroencephalogram electrode, the adapter and the electrode seat each have a head-adhering end, and the end surface of the head-adhering end of the electrode seat has a first thickness from the corresponding cap body part of the electrode seat. The gasket is located between the head-adhering end of the adapter and the cap body and is sleeved on the adapter to form a second thickness between the end surface of the head-adhering end of the adapter and the corresponding cap body part of the adapter, and the difference between the first thickness and the second thickness is less than 1 mm. The electrode seat comprises a seat body and a gasket connected to the seat body, the seat body fixes the electroencephalogram electrode, and the gasket forms the head-adhering end of the electrode seat.

2. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 1, wherein The electrode seat comprises a seat body, the seat body fixes the electroencephalogram electrode, and the seat body forms the head-adhering end of the electrode seat.

3. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 1, wherein The cap body is provided with a wire bundling assembly.

4. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 1, wherein The wire bundling assembly comprises a first wire bundling assembly and a second wire bundling assembly, the first wire bundling assembly is used for bundling a first cable connected to the near-infrared probe, and the second wire bundling assembly is used for bundling a second cable connected to the electroencephalogram electrode.

5. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 4, wherein The first wire bundling assembly is a wire bundling band, two ends of the wire bundling band are connected to the cap body respectively, the wire bundling band is used for pressing the first cable on the cap body, and at least one end of the wire bundling band is detachably connected to the cap body.

6. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 5, wherein The first wire bundling assembly is located in a region between a plurality of adapters on the cap body, and the number of the first wire bundling assemblies is at least three.

7. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 5, wherein The first wire bundling assembly is located in a parietal lobe region and / or an occipital lobe region of the cap body.

8. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 5, wherein The first thickness is 3-5 mm.

9. The electroencephalogram and near-infrared spectroscopy apparatus according to claim 1, wherein The cap body is made of a light-shielding material.

10. The electroencephalogram and near-infrared spectroscopy apparatus according to any one of claims 1 to 9, wherein ​

Images