Apparatus and method for mounting optical sensor for spinal cord

Abstract

One embodiment of the present invention provides an optical sensor mounting device, which allows the spatial arrangement of optical sensors and the shape of a mount to be flexible to conform to the anatomical structure of a spinal cord, so as to maximize spatial resolution, and thus can precisely and accurately measure optical signals of the spinal cord.

Description

Optical sensor placement device and method for the spinal cord

[0001] The present invention was made with the support of the Ministry of Science and ICT under the project identification number 1711179743 and project number 2023030113. The research management specialized organization of the project is the National Research Foundation of Korea, the research project name is “Basic Research”, the research project title is “Study on the spatiotemporal activation characteristics of the spinal motor nerve system for generating muscle force”, the main organization is the Daegu Gyeongbuk Institute of Science and Technology, and the research period is from 2023.03.01 to 2024.02.29.

[0002] The present invention relates to an optical sensor mounting device and method for a spinal cord, and more particularly, to an optical sensor mounting device and method for a spinal cord capable of precisely and accurately measuring optical signals of a spinal cord by maximizing spatial resolution by flexibly arranging the shape of the mounting device and the optical sensors spatially according to the anatomical structure of the spinal cord.

[0003] Spinal cord injury refers to a condition in which a portion of the central nervous system (CNS) is damaged, severely affecting movement and sensation. This damage can occur for a variety of reasons, and patients with spinal cord injury experience various functional impairments and physical limitations in their daily lives. Consequently, patients struggle to return to normal life through functional recovery and rehabilitation.

[0004] Current spinal cord injury treatment and monitoring technologies have several limitations. They primarily use imaging methods to identify spinal cord structures and assess the extent of injury. However, these existing technologies have the following limitations:

[0005] Radiation-based techniques such as X-rays, CT scans, and MRI lack the invasiveness of conventional imaging methods and can cause adverse effects, such as radiation exposure. Furthermore, existing imaging methods struggle with real-time monitoring, limiting their ability to detect dynamic changes in spinal cord activity.

[0006] In recent years, optical sensor technology has emerged as a revolutionary method for noninvasively detecting and monitoring activities within the body. Optical sensors utilize the properties of light to measure blood flow, oxygen concentration, metabolic activity, and other information in real time, providing accurate data. This technology is attracting significant attention in the fields of brain science and biomedicine, and holds great potential for more accurately understanding and monitoring brain and spinal cord activity.

[0007] Accordingly, the present invention has been developed to provide an innovative approach to the treatment and rehabilitation of patients with spinal cord injuries based on the emergence of such optical sensor technology, and it is expected that the invention will detect and monitor spinal cord optical signals in real time to support early diagnosis and individualized treatment plans, thereby providing patients with a better quality of life.

[0008] The present inventors have manufactured an optical sensor mounting device including a plurality of sensor supports including optical sensor grooves capable of mounting optical sensors, and a wire connecting the plurality of sensor supports in a direction perpendicular to a central axis of the optical sensor mounting device, wherein the plurality of sensor supports are arranged in two rows symmetrical with respect to the central axis, and an elastic member connected to the wire adjusts the position of the optical sensor to suit the anatomical structure of the spinal cord of a target, thereby spatially flexibly arranging the optical sensor, thereby maximizing spatial resolution, thereby completing an optical sensor mounting device for a spinal cord capable of precisely and accurately measuring an optical signal of the spinal cord.

[0009] Accordingly, an object of the present invention is to provide an optical sensor mounting device for adjusting the shape of an optical sensor home and the position of an optical sensor to suit the anatomical structure of the spinal cord.

[0010] Another object of the present invention is to provide a method for measuring a spinal cord optical signal of a subject using an optical sensor mounting device.

[0011] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0012] One aspect of the present invention is an optical sensor mounting device comprising: a plurality of sensor supports having one or more optical sensor grooves; and wires connecting the plurality of sensor supports in a direction perpendicular to a central axis of the optical sensor mounting device; wherein the plurality of sensor supports are arranged in two rows symmetrical with respect to the central axis.

[0013] In one embodiment of the present invention, the sensor support may include a wire support and be connected to a wire through the wire support.

[0014] In one embodiment of the present invention, a plurality of sensor supports may be arranged such that optical sensor grooves overlap in each row.

[0015] In one embodiment of the present invention, the optical sensor mounting device may further include an elastic member connected to the wire.

[0016] In one embodiment of the present invention, the plurality of sensor supports may be secured to each other by bolts and nuts inserted into overlapping sensor grooves in each row.

[0017] In one embodiment of the present invention, the bolt and the nut may have a shape corresponding to the outer shape of the optical sensor.

[0018] In one embodiment of the present invention, a plurality of sensor supports may be arranged alternately on the upper and lower sides of each row and fixed in a chain form.

[0019] In one embodiment of the present invention, the sensor support may have two optical sensor grooves, and the two optical sensor grooves may be positioned symmetrically with respect to the wire support.

[0020] In one embodiment of the present invention, the wire may connect the sensor support by passing through the center of the sensor support through the wire support portion.

[0021] In another embodiment of the present invention, the method may include a contact step of bringing an optical sensor unit equipped with an optical sensor in an optical sensor mounting device into contact with a target, and a measurement step of measuring a spinal optical signal from the target through the optical sensor unit.

[0022] The optical sensor mounting device according to the present invention can be positioned to fit the anatomical structure of the spinal cord of a subject by utilizing non-invasive imaging equipment such as an ultrasound device, can flexibly arrange optical sensors spatially, and can reduce the influence of human body movement through an elastic member, thereby enabling precise and accurate measurement of optical signals of the spinal cord.

[0023] The effects of the present invention are not limited to the above-described effects, and should be understood to include all effects that can be inferred from the composition of the invention described in the description or claims of the present invention.

[0024] Figure 1 is a plan view of an optical sensor mounting device according to one embodiment of the present invention.

[0025] FIG. 2 is a plan view showing a sensor support to which a wire is connected through a wire support according to one embodiment of the present invention.

[0026] FIG. 3 is a cross-sectional view showing a plurality of sensor supports arranged alternately on the upper and lower sides and fixed in a chain form according to one embodiment of the present invention.

[0027] FIG. 4 is a flowchart schematically illustrating each step of a method for measuring a spinal cord optical signal of a subject using an optical sensor mounting device (1000) according to another embodiment of the present invention.

[0028] a plurality of sensor supports having one or more optical sensor homes; and

[0029] A wire connecting a plurality of sensor supports in a direction perpendicular to the central axis of the optical sensor mounting device;

[0030] An optical sensor mounting device in which a plurality of sensor supports are arranged in two rows symmetrically based on a central axis.

[0031] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0032] Throughout the specification, when a part is said to be "connected (connected, contacted, or coupled)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that it may include other components, unless otherwise specifically stated.

[0033] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, it should be understood that the terms "comprises" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0034]

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0036]

[0037] FIG. 1 is a plan view of an optical sensor mounting device (1000) according to one embodiment of the present invention.

[0038] Referring to FIGS. 1 and 2, an optical sensor mounting device (1000) according to one embodiment of the present invention may include a sensor support (100), a wire (200), and an elastic member (300).

[0039] An optical sensor mounting device (1000) according to one embodiment of the present invention may include a plurality of sensor supports. The plurality of sensor supports (100) may be connected to wires (200). The wires (200) may be connected to elastic members (300), and thus, the sensor supports (100) may be connected to the elastic members (300) through the wires (200). That is, since the sensor supports (100) may be connected to the elastic members (300) having elasticity through the wires (200), the elastic members (300) may be appropriately adjusted according to the body structure and body characteristics of a subject wearing the optical sensor mounting device (1000), thereby aligning the sensor supports (100) at the correct position.

[0040] A plurality of sensor supports (100) can be arranged to form one or more rows. At this time, the number of rows arranged can be one, two, three, or four or more rows, and can be appropriately adjusted according to the user's characteristics, the type of signal to be measured, and the measurement environment.

[0041] In a non-limiting embodiment of the present invention, as illustrated in FIG. 1, a plurality of sensor supports (100) may be arranged side by side to form two rows in an optical sensor mounting device (1000). As illustrated in FIG. 1, in a first row, a first sensor support (100-1(a)), a second sensor support (100-1(b)), a third sensor support (100-1(c)), and a fourth sensor support (100-1(d)) may be arranged to form one row, and in a second row, symmetrical to the first row, a fifth sensor support (100-2(a)), a sixth sensor support (100-2(b)), a seventh sensor support (100-2(c)), and an eighth sensor support (100-2(d)) may be arranged to form one row.

[0042] As illustrated in FIG. 1, when a plurality of sensor supports (100) are arranged side by side to form two rows, they can be arranged on both sides of the spinal cord to measure spinal cord optical signals. However, the number of sensor supports (100) is not limited to eight sensor supports arranged in two rows as illustrated in FIG. 1, and various numbers of sensor supports can be arranged in three or more rows. That is, the sensor supports (100) can be appropriately arranged and aligned in the correct position according to the body structure of the subject wearing the optical sensor mounting device (1000), the characteristics of the body, and the type of signal to be measured.

[0043] An elastic member (300) according to one embodiment of the present invention may include a wire hole (310). The wire hole (310) may be positioned adjacent to an end of the elastic member (300). One end of a wire (200) may pass through the wire hole (310) in a bent shape, so that the wire (200) and the elastic member (300) may be firmly connected.

[0044] As illustrated in FIG. 1, a single elastic member (300) may be configured such that a plurality of wires (200) are connected to a plurality of wire holes (310), but the shape in which the wires (200) are connected to the wire holes (310) is not limited thereto. Accordingly, the wire holes (310) to which the wires (200) are connected can be aligned to the correct position by appropriately arranging the wire holes (310) according to the body structure and physical characteristics of the subject wearing the optical sensor mounting device (1000).

[0045] A sensor support (100) according to one embodiment of the present invention may be arranged to form one or more optical sensor grooves (120). At this time, the number of optical sensor grooves (120) arranged may be one, two, three, four or more optical sensor grooves (120), and may be appropriately adjusted depending on the type of signal to be measured and the measurement environment.

[0046] In a non-limiting embodiment of the present invention, as illustrated in FIG. 1, the sensor support (100) may be arranged to form two optical sensor grooves (120) on the upper and lower sides in the Y-axis direction. When the sensor support (100) is arranged to form two optical sensor grooves (120) on the upper and lower sides in the Y-axis direction as illustrated in FIG. 1, the lower optical sensor groove (120) of the first sensor support (100-1(a)) may be arranged to overlap with the upper optical sensor groove of the second sensor support (100-1(b)). That is, the number of optical sensor grooves (120) of the sensor support (100) may be appropriately adjusted according to the characteristics of the sensor used or the body structure of the subject wearing the optical sensor mounting device (1000), the characteristics of the body, and the type of signal to be measured, so as to be aligned at the correct position.

[0047] According to one embodiment of the present invention, a plurality of sensor supports (100) may be connected to wires (200). In a non-limiting embodiment of the present invention, as illustrated in FIG. 1, the plurality of sensor supports (100) may be arranged side by side to form two rows in an optical sensor mounting device (1000). As illustrated in FIG. 1, the first sensor support (100-1(a)) and the fifth sensor support (100-2(a)), the second sensor support (100-1(b)) and the sixth sensor support (100-2(b)), the third sensor support (100-1(c)) and the seventh sensor support (100-2(c)), and the fourth sensor support (100-1(d)) and the eighth sensor support (100-2(d)) may be arranged to form a constant interval. The spacing between the plurality of sensor supports (100) arranged in the first row and the second row symmetrically thereto according to one embodiment of the present invention is manufactured to be adjustable from 0 cm to 10 cm, but is not limited thereto. Accordingly, the spacing between the plurality of sensor supports (100) can be adjusted so that the sensor supports (100) are appropriately arranged and aligned in the correct position according to the body structure and physical characteristics of the subject wearing the optical sensor mounting device (1000).

[0048] The wires (200) may be arranged to form one or more rows. The number of rows may be one, two, three, or four or more, and may be appropriately adjusted according to the user's characteristics and measurement environment. In a non-limiting embodiment of the present invention, as illustrated in FIG. 1, a plurality of sensor supports (100) may be arranged side by side to form four rows in an optical sensor mounting device (1000). In the first row, the first sensor support (100-1(a)) and the fifth sensor support (100-2(a)) may be arranged to form one row, in the second row, the second sensor support (100-1(b)) and the sixth sensor support (100-2(b)) may be arranged to form one row, the third sensor support (100-1(c)) and the seventh sensor support (100-2(c)) may be arranged to form one row, and the fourth sensor support (100-1(d)) and the eighth sensor support (100-2(d)) may be arranged to form one row. As illustrated in FIG. 1, when a plurality of sensor supports (100) are arranged side by side to form four rows, they may be arranged above and below the spinal cord to measure spinal cord optical signals, but the number of wires (200) is not limited thereto.

[0049] The material of the wire (200) may be one or more selected from among iron, rubber band, nylon, cast steel, steel, and alloy steel, but is not limited thereto.

[0050] In a non-limiting embodiment of the present invention, the sensor support (100) as illustrated in FIG. 1 may include a wire support (110). The wire (200) may be arranged to be connected in the X-axis direction through the wire support (110).

[0051] The material of the elastic part (300) is a general-purpose elastic material such as ethylene propylene rubber (EPDM), nitrile butadiene rubber (NBR), natural rubber (NR), synthetic natural rubber (Isoprene rubber; IR), synthetic rubber (Styrene butadiene rubber; SBR), butadiene rubber (BR), special elastic material such as vinyl methyl rubber (VMQ), perfluoroelastomer (FFKM), fluoroelastomer (FKM), silicone, acrylic rubber (ACM), thermoplastic elastic material such as thermoplastic crosslinked elastomer (Thermo Plastic Vulcanizate; TPV), thermoplastic polyurethane (Thermoplastic Polyurethane; TPU), and ethylene vinyl acetate copolymer. One or more selected from (Ethylene-Vinyl Acetate Copolymer; EVA) may be used, but is not limited thereto.

[0052] As illustrated in FIG. 1, the elastic member (300) can be connected to both ends of a wire (200) that connects a plurality of sensor supports (100) arranged in parallel to form two rows. For example, the two ends of the first wire (200(a)) connecting the first sensor support (100-1(a)) and the fifth sensor support (100-2(a)) and the third wire (200(c)) connecting the third sensor support (100-1(c)) and the seventh sensor support (100-2(c)) may be arranged to be connected to the first elastic member (300-1(a)) and the third elastic member (300-2(a)), respectively, and the two ends of the second wire (200(b)) connecting the second sensor support (100-1(b)) and the sixth sensor support (100-2(b)) and the fourth wire (200(d)) connecting the fourth sensor support (100-1(d)) and the eighth sensor support (100-2(d)) may be arranged to be connected to the second elastic member, respectively. (300-1(b)) and the fourth elastic member (300-2(b)) may be arranged to be connected, but the shape in which the wire (200) and the elastic member (300) are connected is not limited thereto.

[0053] At this time, the elastic member (300) may be connected to the wires constituting the first and third rows as described above, that is, may be connected while skipping the rows constituting the wires to be connected, but is not limited thereto, and may be connected to the wires constituting the first and second rows to form a continuous row, or may be connected to the wires constituting the first and fourth rows by skipping two rows. Alternatively, two of them may be included in the optical sensor mounting device (1000) according to one embodiment and may be connected to all the wires constituting the rows at both ends, respectively.

[0054] FIG. 2 is a plan view showing a sensor support (100) in which a wire (200) is connected through a wire support (110) according to one embodiment of the present invention.

[0055] The material of the sensor support (100) may be one or more selected from rubber, metal, plastic, ceramic, silicon, and carbon fiber reinforced plastic, but is not limited thereto. The sensor support (100) according to one embodiment of the present invention may include a wire support portion (110) and an optical sensor groove (120).

[0056] A sensor support (100) according to one embodiment of the present invention may be arranged to form one or more optical sensor grooves (120). At this time, the number of optical sensor grooves (120) arranged may be one, two, three, four or more optical sensor grooves (120), and may be appropriately adjusted depending on the type of signal to be measured and the measurement environment.

[0057] In a non-limiting embodiment of the present invention, as illustrated in FIG. 2, the sensor support (100) may be arranged to form a plurality of optical sensor grooves (120). As illustrated in FIG. 2, when the sensor support (100) is arranged to form two optical sensor grooves (120) on the upper and lower sides in the Y-axis direction, it may be configured in a figure 8 shape. That is, the shape of the sensor support (100) may be appropriately arranged depending on the body structure of the subject wearing the optical sensor mounting device (1000), the characteristics of the body, and the type of signal to be measured.

[0058] The material of the wire support (110) may be one or more selected from iron, cast steel, steel, and alloy steel, but is not limited thereto. As illustrated in FIG. 2, the sensor support (100) may include the wire support (110). The wire (200) may be arranged to be connected to the wire support (110) in the X-axis direction. As illustrated in FIG. 2, the wire (200) may be connected by penetrating the wire support (110), so that the wire (200) and the wire support (110) may be firmly connected. At this time, the wire support (110) may be configured in a structure in which the wire (200) is connected by penetrating it, and in a ring shape, so as to be configured in a structure for hanging up the wire (200), but is not limited thereto. Accordingly, the wire support (110) to which the wire (200) is connected can be aligned in the correct position by appropriately placing the wire support (110) according to the body structure and body characteristics of the subject wearing the optical sensor mounting device (1000).

[0059] The type of optical sensor (not shown) may include, but is not limited to, one or more selected from a near infrared light (NIR) sensor, a fiber optic sensor, an ultrasonic sensor, and a photodetector.

[0060] As a type of optical sensor according to one embodiment of the present invention, the LABNIRS equipment of Shimadzu of Japan was used, which uses a fiber optic sensor in which a light-transmitting terminal (Source Optode) and a light-receiving terminal (Detection Optode) are separated.

[0061] A sensor support (100) according to one embodiment of the present invention may be arranged to form one or more optical sensor grooves (120). The optical sensor grooves (120) may be configured to have a shape corresponding to the outer shape of the optical sensor. At this time, the shape of the optical sensor grooves (120) arranged may be arranged in a circular, oval, triangular, or rectangular shape. As illustrated in FIG. 2, the optical sensor grooves (120) may be arranged in a circular or oval shape, but are not limited thereto. That is, the optical sensor grooves (120) may be arranged by appropriately adjusting them according to the shape of the optical sensor depending on the type of signal to be measured.

[0062] FIG. 3 is a cross-sectional view showing a plurality of sensor supports (100) arranged alternately on the upper and lower sides and fixed in a chain form according to one embodiment of the present invention.

[0063] According to one embodiment of the present invention, wires (200) may be arranged to form one or more rows. In this case, the number of rows may be arranged in one, two, three, four or more columns, and may be appropriately adjusted according to the body structure and characteristics of the subject wearing the optical sensor mounting device (1000).

[0064] As illustrated in FIG. 3, a plurality of sensor supports (100) may be arranged side by side to form four rows in the optical sensor mounting device (1000). In the first row, the lower optical sensor groove (120) of the first sensor support (100-1(a)) and the upper optical sensor groove (120) of the second sensor support (100-1(b)) may be arranged to overlap vertically to form one row. In the second row, the lower optical sensor groove (120) of the second sensor support (100-1(b)) and the upper optical sensor groove (120) of the third sensor support (100-1(c)) may be arranged to overlap vertically to form one row. In the third row, the lower optical sensor groove (120) of the third sensor support (100-1(c)) and the upper optical sensor groove (120) of the fourth sensor support (100-1(d)) may be arranged to overlap vertically to form one row. In the fourth row, the lower optical sensor groove (120) of the fourth sensor support (100-1(d)) and the upper optical sensor groove (120) of the ninth sensor support (100-1(e)) may be arranged to overlap vertically to form one row. As illustrated in FIG. 3, when a plurality of sensor supports (100) are arranged side by side to overlap vertically to form four rows, they may be arranged vertically in the spinal cord to measure spinal cord optical signals, but the number of wires (200) is not limited thereto.

[0065] In a non-limiting embodiment of the present invention, as illustrated in FIG. 3, the sensor support (100) may include a wire support (110). The wire (200) may be arranged to be connected in the X-axis direction through the wire support (110). At this time, the material of the wire (200) may use one or more selected from among iron, rubber band, nylon, cast steel, steel, and alloy steel, but is not limited thereto.

[0066] The material of the bolt (130) and nut (140) may be one or more selected from rubber, metal, plastic, ceramic, silicone, and carbon fiber reinforced plastic, but is not limited thereto.

[0067] According to one embodiment of the present invention, the bolt (130) and the nut (140) may be arranged in a form in which they are coupled in the Z-axis direction to the optical sensor groove (120) of one or more sensor supports (100). At this time, the shape of the bolt (130) and the nut (140) fixed to the optical sensor groove (120) may be configured to have a shape corresponding to the outer shape of the optical sensor. The shape of the bolt (130) and the nut (140) coupled to the optical sensor groove (120) of the sensor support (100) may be arranged in a circular, oval, triangular, and square shape, but is not limited thereto.

[0068] FIG. 4 is a flowchart schematically illustrating each step of a method for measuring a spinal cord optical signal of a subject using an optical sensor mounting device (1000) according to another embodiment of the present invention.

[0069] First, the contact step (S100) of bringing an optical sensor unit equipped with an optical sensor (not shown) into contact with a target in an optical sensor mounting device (1000) may be as follows.

[0070] In a non-limiting embodiment of the present invention, a method for measuring a spinal cord optical signal according to the present invention may include a step of mounting an optical sensor on a plurality of sensor supports (100) having one or more optical sensor grooves (120). A step of arranging the plurality of sensor supports (100) in two rows symmetrical with respect to a central axis of an optical sensor mounting device (1000) may be included. A step of connecting the plurality of sensor supports (100) to a wire support (110) in the X-axis direction with a wire (200) may be included. A step of arranging the plurality of sensor supports (100) in a chain shape by alternately arranging the optical sensor grooves (120) on the upper and lower sides in the Y-axis direction in each row may be included. A step of fixing the optical sensor grooves (120) of the plurality of sensor supports (100) to overlapping portions with bolts (130) and nuts (140) may be included. A step of connecting both ends of the wires (200) to elastic members (300) may be included. A step of positioning an optical sensor mounting device (1000) on a spinal cord portion of a subject may be included. A step of adjusting an elastic member (300) to correspond to the shape of the spinal cord of the subject may be included.

[0071] Through the contact step (S100) of bringing the optical sensor unit equipped with the optical sensor in the optical sensor mounting device (1000) described above into contact with the target, a structure in which optical sensor grooves (120) are alternately arranged on the upper and lower sides and arranged in a chain shape as shown in FIGS. 1 and 3 can be formed.

[0072] Next, it may include a measurement step (S200) of measuring a spinal optical signal from a target through an optical sensor unit.

[0073] The optical sensor mounting device (1000) and the spinal cord signal measuring method using the same according to the embodiments of the present invention as described above enable precise and accurate measurement of the optical signal of the spinal cord by adjusting the position of the sensor support (100) according to the anatomical structure of the spinal cord of the subject.

[0074] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0075] The scope of the present invention is indicated by the claims set forth below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0076] One embodiment of the present invention provides an optical sensor mounting device for adjusting the shape of the optical sensor home and the position of the optical sensor to suit the anatomical structure of the spinal cord.

Claims

1. A plurality of sensor supports having one or more optical sensor homes; and A wire connecting the plurality of sensor supports in a direction perpendicular to the central axis of the optical sensor mounting device; An optical sensor mounting device, wherein the plurality of sensor supports are arranged in two rows symmetrically based on the central axis.

2. In paragraph 1, An optical sensor mounting device, wherein the sensor support includes a wire support and is connected to the wire through the wire support.

3. In paragraph 1, An optical sensor mounting device, wherein the plurality of sensor supports are arranged such that the optical sensor grooves overlap each other in each row.

4. In paragraph 1, An optical sensor mounting device, wherein the optical sensor mounting device further includes an elastic member connected to the wire.

5. In paragraph 3, An optical sensor mounting device, wherein the plurality of sensor supports are fixed to each other by bolts and nuts inserted into overlapping sensor grooves in each row.

6. In paragraph 5, An optical sensor mounting device, wherein the above bolts and nuts have a shape corresponding to the outer shape of the optical sensor.

7. In paragraph 5, An optical sensor mounting device, wherein the above plurality of sensor supports are arranged alternately on the upper and lower sides of each row and fixed in a chain form.

8. In paragraph 2, The above sensor support has two optical sensor grooves, An optical sensor mounting device, wherein the two optical sensor grooves are positioned symmetrically with respect to the wire support member.

9. In paragraph 8, An optical sensor mounting device, wherein the wire connects the sensor support by passing through the center of the sensor support through the wire support.

10. A contact step of bringing an optical sensor unit equipped with an optical sensor into contact with a target in the optical sensor mounting device according to Article 1; and A method for measuring a spinal cord signal, comprising: a measuring step of measuring a spinal cord optical signal from a target through the optical sensor unit;

Images