System for collecting and processing bio-signal

Abstract

The present invention relates to a system for collecting and processing a bio-signal. The system for collecting and processing a bio-signal comprises: a sensor unit that is formed in a C-shape having one side open and comes into contact with a finger to sense a photoplethysmography (PPG) signal of a user; a control module that controls the sensor unit and receives the PPG signal; and a server that receives the PPG signal from the control module and processes the PPG signal into predetermined biometric information.

Description

Biosignal acquisition and processing system

[0001] The present invention relates to a biosignal collection and processing system, wherein a sensor part with one side open and an elastically changeable cover structure secure stable adhesion and constant contact pressure even with variations in the thickness or shape of the finger, thereby enabling the universal collection and processing of biosignals from a user regardless of the user's finger size.

[0002] It is important to collect high-quality biosignals in ring-type or watch-type biosignal collection devices despite changes in wearing position or deviations in contact pressure.

[0003] In particular, when collecting PPG signals, it is important to prevent light leakage to the outside and to prevent distortion of the AC component due to micro-slip, given the characteristics of PPG signals collected by optical means. Also, since blood flow in the user's extremities is sensitive to temperature, body position, and activity intensity, it is important to resolve the problem of false detection to improve the quality when collecting biosignals.

[0004] Conventional ring-type or watch-type biosignal collection devices have the disadvantage of inconsistent signal-to-noise ratios, particularly because it is difficult to maintain uniform contact pressure with the finger. Additionally, providing ring-type biosignal collection devices in different sizes to fit the user's finger size is also not effective. Furthermore, there are limitations in supplying power to collect biosignal signals for extended periods or in effectively utilizing battery power, so it is necessary to resolve these problems.

[0005] The present invention was devised to solve the aforementioned problem, and aims to provide a biosignal collection and processing system that can universally collect and process biosignals from a user regardless of the user's finger size by ensuring stable adhesion and constant contact pressure even with variations in finger thickness or shape through a sensor part with one side open and an elastically changeable cover structure.

[0006] A biosignal collection and processing system according to an embodiment of the present invention is characterized by comprising: a sensor unit formed in a C shape with one side open and contacting a finger to sense a user's PPG (Photoplethysmography) signal; a control module that controls the sensor unit and receives the PPG signal; and a server that receives the PPG signal from the control module and processes it into predetermined biosignal information.

[0007] In addition, the sensor unit includes a plurality of sensors that collect PPG signals, and the control module can periodically select a sensor that receives a PPG signal of optimal quality among the plurality of sensors and control the sensor unit to collect a PPG signal from a user using the sensor that senses the PPG signal of optimal quality.

[0008] In addition, the PPG signal collected by the sensor unit is transmitted to the control module via wired or wireless connection, and the control module may be provided to be wearable by the user.

[0009] Additionally, the control module comprises: a receiving unit for receiving the PPG signal; a display unit for receiving and displaying biometric information obtained by processing the PPG signal from the server; an input unit for providing control commands to the sensor unit; and a communication unit for communicating with the server and transmitting the PPG signal; and the control module may be detachably coupled to a mounting unit wearable on the wrist.

[0010] In addition, the sensor unit may further include at least one of a temperature sensor that measures the user's body temperature and an accelerometer that detects the user's movement.

[0011] In addition, the PPG signal collected by the control module can be transmitted to the server through the terminal.

[0012] In addition, the sensor part may be made of a material with changeable elasticity.

[0013] In addition, it may include a cover made of an elastically changeable material that is coupled to the outer perimeter of the sensor part.

[0014] Additionally, the cover has an opening on one side, a receiving groove formed on the inside for accommodating the sensor part, and a seating groove formed on one side of the opening for seating a wire extending from the sensor part.

[0015] In addition, at least a portion of the wire may be connected to the control module through the space of the opening.

[0016] In addition, the above cover is formed in a "C" shape, and a receiving groove is formed on the inside to accommodate the sensor part, and a rib may be formed in the receiving groove to surround at least a part of the inner surface of the sensor part.

[0017] Additionally, the mounting portion may include a coupling portion to which the control module is detachably coupled; a strap coupled to the coupling portion and worn on the wrist; and a window formed in the coupling portion to expose the display portion of the control module.

[0018] In addition, it may include a cover that is coupled to the outer perimeter of the sensor part and includes a variable adjustment part whose circumferential length is adjusted to fit the size of the user's finger.

[0019] In addition, a mounting portion for mounting the sensor portion is provided on one side of the variable adjustment portion, and a fastening rib for gripping the edge of the sensor portion may be formed on the upper part of the mounting portion.

[0020] In addition, the control module may be equipped with a temperature sensor that measures the user's body temperature.

[0021] A biosignal collection and processing system according to an embodiment of the present invention secures stable adhesion and constant contact pressure even with variations in the thickness or shape of the finger through a sensor part with one side open and an elastically changeable cover structure, thereby enabling the universal collection and processing of biosignals from a user regardless of the user's finger size.

[0022] The present invention provides a system capable of automatically and continuously measuring and monitoring biosignals (oxygen saturation, pulse, irregular pulse wave, respiratory rate, continuous blood pressure estimation, skin temperature, body temperature) by linking a sensor unit, a control module, and a server to enable continuous monitoring of biosignals.

[0023] The present invention ensures wearability and versatility. Specifically, the sensor part is configured as a C-shape with one side open and implemented as a one-size structure including a cover made of an elastic material, thereby enabling stable contact and long-term wear regardless of the user's finger size.

[0024] The present invention enables the acquisition of high-quality signals by optimizing signal quality and reducing noise. Specifically, the control module periodically selects the optimal sensor among a plurality of PPG sensors to control data collection and select a high-quality signal.

[0025] Furthermore, interoperability with clinical and in-hospital systems can be enhanced. Specifically, the results derived from the aforementioned server are linked with external systems, such as the hospital's EMR (Electronic Medical Record), to enable integrated central ward monitoring and alarm management.

[0026] The present invention improves operational efficiency and maintenance convenience. By providing a charging device in the form of a multi-charging station, multiple control modules can be charged and managed collectively, thereby reducing on-site operating costs and maintenance burdens.

[0027] FIG. 1 is a block diagram of a biosignal collection system according to one embodiment of the present invention,

[0028] FIG. 2 is a block diagram of a biosignal collection and processing system according to another embodiment of the present invention, FIG. 1 is a block diagram of a biosignal collection and processing system according to an embodiment of the present invention.

[0029] FIG. 2 is a drawing illustrating a sensor unit, a control module, and a mounting unit.

[0030] FIG. 3 is a drawing showing a state in which a sensor unit, a control module, and a mounting unit are worn on a finger.

[0031] FIG. 4 is a drawing illustrating the sensor unit,

[0032] FIG. 5 is a drawing showing the state in which the cover and the sensor part are separated.

[0033] A drawing showing the internal state of the sensor unit of Fig. 6,

[0034] Fig. 7 is a cross-sectional view of Fig. 6,

[0035] FIG. 8 is a perspective view of the cover

[0036] Fig. 9 is a cross-sectional view of Fig. 8

[0037] FIG. 10 is a drawing showing the state in which a cover according to another embodiment of FIG. 2 is applied.

[0038] FIG. 11 is a perspective view of the cover adopted in FIG. 10.

[0039] FIG. 12 is a front view of the state in which the sensor part is coupled to the cover of FIG. 11.

[0040] FIG. 13 is a perspective view of a control module,

[0041] FIG. 14 is a drawing showing the state in which the control module and the mounting part are separated.

[0042] FIG. 15 is a drawing showing the state in which the control module of FIG. 14 is mounted on the mounting part.

[0043] FIG. 16 is a perspective view of a charging device,

[0044] FIG. 17 is an enlarged view of a part of FIG. 16.

[0045] FIG. 18 is a rear view of FIG. 16,

[0046] FIG. 19 is a perspective view showing the interior of FIG. 16,

[0047] FIG. 20 is a drawing showing the state in which a control module is inserted into FIG. 16.

[0048] FIG. 21 is a drawing showing the stacked charging device of FIG. 16.

[0049] Hereinafter, various embodiments of the present invention are described in conjunction with the accompanying drawings. Since various embodiments of the present invention may be subject to various modifications and may have various forms, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the various embodiments of the present invention to specific forms, and it should be understood that they include all modifications and / or equivalents and substitutions that fall within the spirit and scope of the various embodiments of the present invention. In relation to the description of the drawings, similar reference numerals have been used for similar components.

[0050] Expressions such as "comprising" or "may comprise" that may be used in various embodiments of the present invention indicate the existence of the disclosed function, operation, or component, etc., and do not limit one or more additional functions, operations, or components, etc. Furthermore, in various embodiments of the present invention, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0051] When it is stated that a component is "connected" to another component, it should be understood that the component may be directly connected to the other component, or that a new component may exist between the component and the other component. On the other hand, when it is stated that a component is "directly connected" or "directly coupled" to another component, it should be understood that no new component exists between the component and the other component.

[0052] The terms used in the various embodiments of the present invention are used merely to describe specific embodiments and are not intended to limit the various embodiments of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0053] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the various embodiments of the present invention pertain.

[0054] Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the various embodiments of the present invention.

[0055]

[0056] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. The present invention relates to a biosignal collection and processing system that enables continuous monitoring of biosignals by linking a sensor unit (10), a control module (20), and a server (30) to automatically and continuously measure and monitor biosignals. Referring to FIG. 1, the biosignal collection and processing system according to an embodiment of the present invention includes a sensor unit (10), a control module (20), and a server (30).

[0057]

[0058] The sensor unit (10) is provided to collect biosignals from a user. According to an embodiment of the present invention, the sensor unit (10) is formed in a C shape with one side open. The inner surface of the C shape is in contact with a finger to collect biosignals from the user. According to the present embodiment, the sensor unit (10) is provided with a PPG signal collection sensor (11, 12) for collecting PPG signals, a first temperature sensor (13) for measuring the user's body temperature (skin temperature), and an accelerometer (14) for detecting the user's movement.

[0059] As illustrated in FIGS. 2 and 3, the sensor unit (10) is positioned to be fitted onto and contact the user's finger. Using the user's PPG signal collected by the sensor unit (10), the user's continuous blood pressure, oxygen saturation, pulse rate, irregular pulse wave, and respiratory rate can be calculated, and the user's skin temperature can be continuously measured and monitored by the first temperature sensor (13).

[0060] The sensor unit (10) may include a plurality of sensors for collecting PPG signals. Specifically, according to an embodiment of the present invention, the PPG signal collecting sensor includes a first PPG collecting sensor (11) and a second PPG collecting sensor (12).

[0061] Additionally, among the plurality of sensors, a sensor that collects a PPG signal of optimal quality can be periodically selected. By the control module (20), a sensor that receives a PPG signal of optimal quality among the plurality of sensors is periodically selected, and a PPG signal can be collected from a user using the sensor that senses the PPG signal of optimal quality.

[0062] Referring to FIGS. 6 and 7, the sensor unit (10) is formed by combining an inner part (101) that forms the inner surface side and an outer part (102) that is coupled to the inner part (101) and forms the outer surface side. Inside the area where the inner part (101) and the outer part (102) are combined, a space is formed in which a printed circuit board (17) is disposed, on which the first PPG collection sensor (11), the second PPG collection sensor (12), the first temperature sensor (13), and the acceleration sensor (14) are mounted.

[0063] According to the present embodiment, the inner part (101) and the outer part (102) may be made of a material that can provide a comfortable feeling to the user when worn, such as an elastically deformable material. The material may be selected from silicone, TPU (Thermoplastic Polyurethane), TPE (Thermoplastic Elastomer), Medical-Grade Rubber (Latex-Free), and polyurethane foam, or at least one of these materials may be combined.

[0064] The printed circuit board (17) is arranged in an arc shape to match the shape of the sensor unit (10), and the first and second PPG signal collection sensors (11, 12), the first temperature sensor (13), and the acceleration sensor (14) are provided on one side of the printed circuit board (17). A circuit pattern is formed on the printed circuit board (17) to electrically connect and transmit signals output from the sensors, and a power supply path is provided to distribute power supplied from the control module (20) to the sensors. In addition, the printed circuit board (17) acts as a mechanical support so that the sensors can be stably mounted. The first and second PPG signal collection sensors (11, 12) are optical sensors, and the first temperature sensor (13) may be a contact sensor using elements such as a thermistor or a thermocouple.

[0065] The printed circuit board (17) is designed and arranged in an arc shape to align with the curvature of the sensor part (10) and the shape of the wearer's finger, thereby allowing the sensor to stably contact the skin surface and maintain measurement accuracy even when worn for a long time. The first and second PPG collection sensors (11, 12) are provided protruding from the inner circumference of the inner part (101) to be in close contact with the finger, and their upper surfaces may be made of a transparent material for light transmission.

[0066] On one side of the printed circuit board (17), the first and second PPG signal collection sensors (11, 12), the first temperature sensor (13), and the acceleration sensor (14) are arranged without interference with each other, enabling the simultaneous collection of multiple biological signals. The first and second PPG signal collection sensors (11, 12) are optical sensors capable of precisely detecting blood oxygen saturation, pulse wave fluctuations, irregular pulse waves, etc., using different wavelengths (e.g., red light and infrared light). Among the multiple sensors, the sensor with the optimal signal quality can be selected by the control module (20) as the sensor with excellent signal-to-noise ratio (SNR). The first PPG signal collection sensor (11) or the second PPG signal collection sensor (12) may each include a plurality of light sources that irradiate different wavelengths and a detector (photodiode) that receives light reflected from the light sources.

[0067] In addition, the first temperature sensor (13) is a contact-type sensor using elements such as a thermistor or a thermocouple, and the sensor unit (10) is in close contact with the skin of the finger to stably collect accurate temperature signals. In this way, the sensor unit (10) is worn on the patient's finger for a long time without contact failure and works in conjunction with the accelerometer (14) to ensure the stability of the skin temperature signal considering the user's movement, thereby enabling the acquisition of reliable body temperature data considering the operating environment.

[0068] In addition, according to an embodiment of the present invention, the printed circuit board (17) of the sensor part (10) is mounted by an elastic support part (18). One side of the elastic support part (18) is connected to the printed circuit board (17) and is bent into a "C" shape, and the other side of the elastic support part (18) is connected to a fixing part (19) provided in the outer part (102). The elastic support part (18) is formed in a "C" shape so that elastic force can be easily provided.

[0069] The fixed part (19) is formed in the shape of a closed curved band with an open center side and is formed approximately with the curvature of the sensor part (10). The fixed part (19) is formed in the shape of a hollow band to reduce the weight of the sensor part (10), and the pressure repeatedly received by the printed circuit board (17) due to the pressure when the sensor part (10) comes into close contact with the user can be cushioned by the elastic support part (18).

[0070] In addition, according to the present embodiment, a wire (15) for power supply and signal transmission is connected to one side of the sensor unit (10), and a connection unit (16) connected to the control module (20) is provided at the other end of the wire (15). Meanwhile, the PPG signal, acceleration signal, and body temperature signal collected by the sensor unit (10) can be transmitted to the control module (20) via a wired connection, or can be transmitted via a wireless communication method. The wireless communication method can be implemented using one or more of the following: Bluetooth communication method for short-range wireless communication, Wi-Fi communication method through a wireless network within a hospital or home, ZigBee method for low-power long-range communication, ANT+ method for medical data transmission, and LoRa method for low-power wide-area networks.

[0071]

[0072] As illustrated in FIGS. 4 and 5, a cover (80) made of an elastically deformable material is attached to the outer perimeter of the sensor part (10). The cover (80) is detachably attached to the sensor part (10). Through the cover (80), the sensor part (10) can be stably adhered to even with changes in the user's finger size or prolonged wear, and the contact force of the sensor part (10) can be stably maintained.

[0073] As illustrated in FIG. 8, the cover (80) is formed in a C shape with an opening on one side, and is formed to accommodate the C-shaped sensor part (10) inside and completely enclose the outer surface of the sensor part (10). That is, the arc length in the circumferential direction of the cover (80) is formed to be greater than the arc length in the circumferential direction of the outer part (102) so as to completely enclose the outer part (102). Accordingly, the cover (80) protects the sensor part (10) and at the same time evenly distributes the pressure applied to the user's skin, thereby minimizing discomfort when worn.

[0074] As illustrated in FIG. 9, the cover (80) has a receiving groove (81) formed on its inner side to accommodate the sensor unit (10), and a seating groove (82) formed on one side of the opening to accommodate a wire (15) extending from the sensor unit (10). The seating groove (82) may have a concave cross-section to prevent the wire (15) from being dislodged by external impact or movement, and at least a portion of the wire (15) is connected to the control module (20) through the space of the opening.

[0075] Additionally, according to an embodiment of the present invention, the cover (80) has a rib (83) formed in the receiving groove (81) that surrounds at least a portion of the inner surface of the sensor part (10). The rib (83) increases the bonding force between the sensor part (10) and the cover (80), stably maintains the position of the sensor part (10), and prevents minute shaking or gaps that may occur during measurement.

[0076] Furthermore, the cover (80) may be made of a medically certified elastic material such as silicone, TPU, or TPE, and is resistant to sweat or moisture and easy to wash and disinfect, thereby ensuring both hygiene and durability even in a repeated wearing environment. In addition to protecting the sensor part (10) from mechanical shock or contamination, the cover (80) improves the comfort of wearing on the user's finger.

[0077]

[0078] Meanwhile, as illustrated in FIG. 10, according to another embodiment of the present invention, the cover (100) may be provided with a seating portion (120) on which the sensor portion (10) is seated, and may include a variable adjustment portion (110) that can adjust the length in the circumferential direction while wrapping around the user's finger.

[0079] As illustrated in FIGS. 11 and 12, the mounting portion (120) has a groove formed on its inner side for mounting the sensor portion (10), and a fastening rib (121) is formed on the upper side of the mounting portion (120) to hold the edge of the sensor portion (10). More specifically, a mounting portion (120) is provided on one side of the variable adjustment portion (110) for mounting the outer part (102), and the fastening rib (121) provided on the upper side of the mounting portion holds the edge of the inner part (101). The variable adjustment portion (110) may be formed in the shape of a strip having a predetermined width and may be formed so as to be connected by Velcro at the end. A wire hole (130) is formed in the variable adjustment portion (110) through which a wire (15) is drawn out when the sensor portion (10) is mounted.

[0080]

[0081] The control module (20) controls the sensor unit (10) and receives the PPG signal. Additionally, the control module (20) receives acceleration signals and body temperature signals collected by the acceleration sensor (14) and the first temperature sensor (13) provided in the sensor unit (10). The control module (20) transmits the PPG signal, acceleration signal, and body temperature signals received through the sensor unit (10) to the server (30).

[0082] In addition, the control module (20) can be connected to a gateway device (60) (e.g., smartphone, tablet, etc.) via NFC (Near Field Communication) or a cellular communication network (LTE, 5G, etc.), thereby enabling the data of the sensor unit (10) to be reliably transmitted to a remote server (30).

[0083] The control module (20) periodically selects a sensor that receives a PPG signal of optimal quality among a plurality of sensors provided in the sensor unit (10) to collect PPG signals, and controls the sensor unit (10) to collect PPG signals from a user using the sensor that senses the PPG signal of optimal quality. The control module (20) may be provided in a form that can be worn by a user. According to the present embodiment, the control module (20) may be detachably coupled to a mounting unit (90) worn on the wrist.

[0084]

[0085] The control module (20) controls the sensor unit (10) and receives a PPG signal generated from the sensor unit (10). Additionally, the control module (20) receives acceleration signals and body temperature signals collected by an acceleration sensor (14) and a first temperature sensor (13) provided in the sensor unit (10), and these signals include data that reflect the user's movement, changes in body temperature, and blood flow status in real time. The control module (20) transmits the PPG signal, acceleration signal, and body temperature signal received through the sensor unit (10) to a server (30), and the transmission can be performed not only via wired transmission but also via wireless transmission.

[0086] The control module (20) can continuously collect biosignals in an unconscious environment of the user or automatically change the biosignal collection schedule to a low-power mode depending on the battery (26) environment. For example, when operating in a low-power mode depending on the remaining battery (26) amount, the collection cycle of biosignals collected by the sensor unit (10) can be increased compared to the normal mode.

[0087] Wireless transmission methods may include Bluetooth for short-range wireless communication, Wi-Fi based on hospital or home networks, ZigBee for low-power long-range communication, ANT+ for communication between medical devices, and LoRa for wide-area networks, and one or more of these may be selected and implemented.

[0088] In addition, the control module (20) can be connected to a gateway device (60) (e.g., a smartphone, tablet, etc.) via NFC (Near Field Communication) or a cellular communication network (LTE, 5G, etc.), thereby enabling the data of the sensor unit (10) to be reliably transmitted to a remote server (30) or a hospital management system. As a result, the user's biometric data can be synchronized in real time with a hospital central monitoring system or a cloud server to quickly detect abnormal signs in the patient.

[0089] The control module (20) periodically selects a sensor that receives a PPG signal of optimal quality among a plurality of PPG sensors provided in the sensor unit (10) to collect PPG signals, and controls the sensor unit (10) to collect PPG signals from the user using the sensor of optimal quality. By operating in this manner, data distortion caused by external noise or user movement can be minimized, and highly reliable data can be secured. The signal-to-noise ratio (SNR) can be used to select a sensor with good signal quality. That is, the control module (20) can select a sensor that senses a signal with a high signal-to-noise ratio as the sensor that received a signal of good quality.

[0090] Specifically, according to the present embodiment, with reference to FIG. 1, the control module (20) includes a receiving unit (21), an input unit (22), a display unit (23), a communication unit (24), a second temperature sensor (25), and a battery (26).

[0091] The receiver (21) receives the PPG signal received by the sensor unit (10). Additionally, the receiver (21) receives the acceleration signal sensed by the acceleration sensor (14) provided in the sensor unit (10) and the body temperature signal measured by the first temperature sensor (13). The receiver (21) can filter the signal containing noise or store it in a buffer and transmit it to the server (30).

[0092] The communication unit (24) communicates with the server (30). The communication unit (24) transmits the PPG signal, acceleration signal, and body temperature signal received from the receiving unit (21) to the server (30), and can perform data transmission and reception with the server (30) through various wireless communication methods, such as Bluetooth, Wi-Fi, ZigBee, ANT+, LoRa, NFC, LTE, and 5G. Of course, the data can be transmitted to the server (30) via a wired method. Data such as the PPG signal transmitted to the server (30) can be linked in real-time with a central monitoring device within the hospital or a cloud-based remote management system.

[0093] The display unit (23) receives and displays biometric information obtained by processing data such as the PPG signal from the server (30). That is, the PPG signal, acceleration signal, and body temperature signal are processed by a predetermined algorithm provided in the server (30) and converted into heart rate, oxygen saturation, irregular pulse wave, body temperature change, activity level indicator, etc., and such biometric information is provided to the user through the display unit (23) of the control module (20). Of course, the biometric information can be provided to and shared with other medical personnel. The display unit (23) can display information in the form of a single numerical value, a graph, a waveform, or an alarm message.

[0094] The input unit (22) provides control commands to the sensor unit (10). The input unit (22) may be provided as a touch-type on the display unit (23) or as a button-type on the body of the control module (20). Through the input unit (22), the user can perform commands such as turning the power on / off of the sensor unit (10), patient registration, initiation of measurement, network settings, and data correction commands such as patient information. Additionally, the input unit (22) may be configured to include a user authority management function so that medical staff and patients can access different menus.

[0095] The second temperature sensor (25) is provided in the control module (20) and can detect the temperature of the user's skin surface or the surrounding environment to correct the reliability of the body temperature signal received from the first temperature sensor (13). Through this, the accuracy of the body temperature measurement can be ensured.

[0096] According to an embodiment of the present invention, as illustrated in FIG. 13, the second temperature sensor (25) may be provided on the upper surface of the control module (20), and an IR (Infrared) sensor may be employed. The IR sensor can detect infrared radiation emitted from the surface of the user's skin and measure the skin temperature in a non-contact manner. The second temperature sensor (25) can measure body temperature, for example, by placing the control module (20) against the user's forehead.

[0097] The battery (26) provides power to the control module (20). The battery (26) is rechargeable and can be recharged via a wireless charging method or a wired multi-charging station. Additionally, the battery (26) performs the function of supplying power to the control module (20) itself while simultaneously stably supplying power to the sensor unit (10). If necessary, a Battery Management System (BMS) may be included to optimize charging and discharging efficiency and prevent overcharging or over-discharging. The battery (26) can be implemented to enable long-term operation of the control module (20) (e.g., securing an available time of 5 days or more).

[0098] Accordingly, the control module (20) integrates the functions of collecting, communicating, displaying, and controlling biosignals, thereby managing the patient's condition in real time and supporting monitoring and treatment by medical staff.

[0099]

[0100] The mounting portion (90) is provided to stably mount the control module (20). As illustrated in FIG. 14, according to the present embodiment, the mounting portion (90) is formed as a watch type that can be worn on a user's wrist. According to the present embodiment, the mounting portion (90) includes a coupling portion, a strap (92), and a window (911).

[0101] The above coupling portion is a part to which the control module (20) is detachably coupled, and is formed in a cuboid shape that roughly corresponds to the external shape of the control module (20). An inlet portion (912) into which the control module (20) is fitted and inserted is formed on one side of the coupling portion, and the guide surface of the inlet portion (912) may be formed at an angle to facilitate positional alignment when the control module (20) is inserted. A window (911) is formed in the coupling portion so that the display portion (23) of the control module (20) can be exposed to the outside.

[0102] The strap (92) is attached to both sides of the connecting part and is provided to be worn on the user's wrist. The strap (92) can be adjusted in length and fastened via a buckle, snap, Velcro, or magnetic fastening method, and can accommodate various wrist sizes. Additionally, the strap (92) can be formed from a material that causes minimal skin irritation and provides comfort even when worn for a long time, such as silicone, TPU, TPE, or nylon fabric.

[0103] The above window (911) is provided to allow observation of the extent of display on the control module (20). The above window (911) may be provided in an open form without any additional components. Meanwhile, the above window (911) may be provided covered with a transparent or translucent material, so that the screen display of the control module (20) can be provided to the user without distortion. As shown in FIG. 15, when the control module (20) is inserted into the mounting part (90), the display part (23) is exposed to the outside through the window (911), allowing the user to observe the display information.

[0104] Additionally, the control module (20) is provided with a pin coupling portion (28) for the connection portion (16) of the charging terminal (27) of the battery (26) and the data transmission wire (15). When the control module (20) is coupled through the inlet portion (912), the pin coupling portion (28), where the charging terminal (27) and the connection portion (16) of the wire (15) connected to the sensor portion (10) are coupled, is exposed so as to be observable from the outside. Since the mounting portion (90) allows the control module (20) to be detachably coupled, the replacement of the mounting portion (90) itself is easy, making maintenance convenient, and the effect of being able to separate the control module (20) for charging or storage is provided.

[0105]

[0106] The server (30) receives a PPG signal transmitted from the control module (20) and calculates various biometric information by applying it to a predetermined algorithm. Specifically, the server (30) processes the PPG signal to calculate oxygen saturation, pulse rate, pulse wave fluctuation, whether there is an irregular pulse wave, respiration rate, and blood pressure. In addition, the server (30) receives an acceleration signal collected from an acceleration sensor (14) provided in the sensor unit (10) and a body temperature signal collected from the first temperature sensor (13), and calculates biometric information reflecting the user's activity level indicator, movement pattern, and body temperature change by applying it to a predetermined algorithm.

[0107] The PPG signal, acceleration signal, and body temperature signal received from the server (30) can be stored in the storage unit (31), and the storage unit (31) stores not only raw data but also derived biometric information calculated based on the signals. Additionally, the server (30) is provided with a processing unit (32), and a plurality of algorithms are stored in the processing unit (32). The algorithm may be a dedicated algorithm that calculates only a single indicator (e.g., oxygen saturation, body temperature) or an integrated algorithm that calculates multiple indicators simultaneously. The user may select and operate one or more of the algorithms as needed.

[0108] Additionally, the biometric information generated by the server (30) may be provided directly to the control module (20) along with the patient identification number, or transmitted to the control module (20) through a gateway device (60) (e.g., a smartphone, a tablet, etc.). The biometric information may be displayed on the display unit (23) of the control module (20) so that the user can monitor it in real time.

[0109] Data generated by the server (30) or transmitted through the server (30) is reliably transmitted to an external server (50), such as a hospital management system (EMR: Electronic Medical Record) or a data hub, and can be shared among medical staff. Through this, the patient's real-time status can be provided to multiple medical staff simultaneously, thereby supporting rapid diagnosis and treatment decision-making.

[0110] Additionally, biometric information generated from the server (30) can be displayed through a digital display unit (40). As illustrated in FIG. 1, the digital display unit (40) may display blood pressure, pulse, oxygen saturation, respiratory rate, irregular pulse wave, skin temperature, body temperature, etc. The digital display unit (40) may be configured as a large monitor, a wall panel, or a network-connected display device. This allows for intuitive monitoring of the condition of multiple patients in a central control room or a remote medical environment.

[0111]

[0112] FIGS. 16 to 21 illustrate a charging device (70) of a control module (20) according to an embodiment of the present invention.

[0113] Referring to FIG. 16, the charging device (70) is provided in the form of a multi-charging station so that a plurality of control modules (20) can be charged simultaneously. A plurality of slots (72) are formed in the main body (71) of the charging device (70). As shown in FIG. 17 and FIG. 20, each slot (72) is provided with a terminal portion connected to a charging terminal (27) of a control module (20) and an on / off switch (79) for starting or stopping the operation of the charging device (70).

[0114] As illustrated in FIGS. 18 and 19, a power supply unit (75) that receives power from an external power source is provided on the rear of the charging device (70), and a heat dissipation unit (76) is formed to dissipate heat generated during the charging process to the outside. Additionally, a fan (78) for cooling is provided adjacent to the heat dissipation unit (76). Furthermore, an SMPS (77) (Switched-Mode Power Supply) is provided inside the charging device (70) to convert AC power into DC power and distribute stable voltage and current to each slot (72).

[0115] Meanwhile, in the charging device (70) employed in the present embodiment, a stacking groove (73) is formed on the upper surface of the main body (71), and a stacking projection (74) is formed on the lower surface. As shown in FIG. 21, by inserting the stacking projection (74) of the charging device (70) into the stacking groove (73) of another charging device (70) located below, a plurality of control modules (20) can be charged simultaneously while a plurality of charging devices (70) are stacked vertically.

[0116] This stacked structure increases space efficiency in hospital wards, laboratories, or large-scale patient monitoring environments and provides the advantage of managing multiple charging devices (70) in an integrated form. Furthermore, the charging device (70) is designed to charge multiple control modules (20) simultaneously and includes an LED display unit that indicates the charging status of each slot (72), displaying charging, charging complete, error status, etc., using colors or lighting patterns so that the user can intuitively recognize the charging status.

[0117] As such, the charging device (70) according to the present invention can not only stably charge a plurality of control modules (20) simultaneously, but also provide mass operation and stable management functions required in a medical environment by increasing space utilization through a stacked structure.

[0118]

[0119] Although the present invention has been described in detail with reference to preferred embodiments, the invention is not limited to the above embodiments, and many variations may be provided within the scope of the invention.

Claims

1. A sensor part formed in a C shape with one side open, which contacts a finger to sense the user's PPG (Photoplethysmography) signal; A control module that controls the sensor unit and receives the PPG signal; A biosignal collection and processing system characterized by including a server that receives the PPG signal from the control module and processes it into predetermined biosignal information.

2. In Paragraph 1, The sensor unit includes a plurality of sensors that collect PPG signals, A biosignal collection and processing system characterized in that the control module periodically selects a sensor that receives a PPG signal of optimal quality among the plurality of sensors, and controls the sensor unit to collect a PPG signal from a user using the sensor that senses the PPG signal of optimal quality.

3. In Paragraph 1, The PPG signal collected by the sensor unit is transmitted to the control module via wired or wireless connection, and A biosignal collection and processing system characterized by the above-described control module being provided to be wearable by the user.

4. In Paragraph 3, The above control module is, A receiving unit for receiving the PPG signal; a display unit for receiving and displaying biometric information obtained by processing the PPG signal from the server; an input unit for providing control commands to the sensor unit; and a communication unit for communicating with the server and transmitting the PPG signal; are included. A biosignal collection and processing system characterized in that the above-described control module is detachably coupled to a mounting part wearable on the wrist.

5. In Paragraph 1, A biosignal collection and processing system characterized in that the sensor unit further includes at least one of a temperature sensor that measures the user's body temperature and an accelerometer that detects the user's movement.

6. In Paragraph 1, A biosignal collection and processing system characterized in that the PPG signal collected by the control module is transmitted to the server via a terminal.

7. In Paragraph 1, A biosignal collection and processing system characterized in that the sensor part is made of a material with elastic changeability.

8. In Paragraph 1, A biosignal collection and processing system characterized by including a cover made of an elastically changeable material that is coupled to the outer perimeter of the sensor part.

9. In Paragraph 8, A biosignal collection and processing system characterized in that the above cover has an opening with one side open, a receiving groove formed on the inside for accommodating the sensor part, and a seating groove formed on one side of the opening for seating a wire extending from the sensor part.

10. In Paragraph 9, A biosignal acquisition and processing system characterized in that at least a portion of the above wire is connected to the control module through the space of the above opening.

11. In Paragraph 8, A biosignal collection and processing system characterized in that the above cover is formed in a "C" shape, a receiving groove is formed on the inside for receiving the sensor part, and the receiving groove has a rib formed to surround at least a part of the inner surface of the sensor part.

12. In Paragraph 4, The above mounting part is, A coupling part to which the above control module is detachably coupled; A strap that is connected to the above-mentioned joint and worn on the wrist; A biosignal collection and processing system characterized by having a window formed in the above-mentioned coupling portion through which the display portion of the control module is exposed.

13. In Paragraph 1, A biosignal collection and processing system characterized by including a cover coupled to the outer circumference of the sensor part and including a variable adjustment part whose circumferential length is adjusted to fit the size of the user's finger.

14. In Paragraph 13, On one side of the above variable adjustment part, a mounting portion is provided for mounting the sensor part, and A biosignal collection and processing system characterized by having a fastening rib formed on the upper part of the above-mentioned mounting portion to hold the edge of the sensor portion.

15. In Paragraph 1, A biosignal collection and processing system characterized by the above-mentioned control module being equipped with a temperature sensor for measuring the user's body temperature.

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