Wearable type bio-signal monitoring device

Abstract

A wearable-type bio-signal monitoring device according to an embodiment of the present disclosure comprises: an earset housing which is provided with at least one cover so as to partition an inner space and has at least one opening formed therein; an in-ear which is coupled to the earset housing and has a shape extending to the outside of the earset housing while being in communication with the at least one opening; a speaker which is provided in the inner space of the earset housing and outputs an emission soundwave through the in-ear; and a microphone which is provided in the inner space of the earset housing, and receives the input of reflection soundwave through the in-ear.

Description

Wearable type biosignal monitoring device

[0001] The present disclosure relates to a wearable type biosignal monitoring device usable in a hyperbaric oxygen therapy device.

[0002] Wearable devices have evolved into various forms and functions and are widely utilized in the fields of modern medicine and healthcare. In particular, the technology for real-time monitoring of a patient's vital signs in special environments, such as hyperbaric oxygen therapy, is considered an important technology for enhancing patient safety and treatment efficacy.

[0003] Hyperbaric oxygen therapy is used to treat various conditions such as decompression sickness, air embolism, gas poisoning, wound healing, and burn healing by supplying patients with nearly 100% oxygen under a pressure higher than atmospheric pressure. The hyperbaric oxygen chamber used for this purpose includes a system that creates a therapeutic environment and controls internal pressure.

[0004] Conventional automatic pressure control systems in hyperbaric oxygen chambers primarily operate according to predefined treatment tables and have a structure that fails to reflect the patient's individual vital signs or condition. Since these systems perform uniform pressure increases and decreases regardless of the patient's condition, they have the problem of being unable to effectively prevent side effects, such as middle ear barotrauma, that may occur during treatment.

[0005] Middle ear barotrauma occurs due to the pressure difference between the outer and middle ear in a pressurized environment and can manifest in various forms, ranging from mild pain or redness to severe cases of eardrum rupture. To prevent this, medical professionals have implemented methods such as using nasal sprays or reducing the pressurization rate, but these alone are insufficient for complete prevention. Furthermore, situations frequently arise where medical staff must assess the likelihood of middle ear barotrauma occurring during treatment by relying on the patient's subjective feelings through conversation. In particular, it is difficult to detect and respond to issues such as middle ear barotrauma early when patients are unable to directly describe their condition or when the treatment environment is restrictive.

[0006] Therefore, to ensure the safety of hyperbaric oxygen therapy, a technical solution capable of accurately measuring and analyzing the patient's vital signs in real time is required.

[0007] One objective of the present disclosure is to alleviate ear pain trauma resulting from pain or discomfort caused by pressure changes between the user's outer and middle ears in a hyperbaric oxygen therapy environment, and to minimize anxiety and discomfort that may occur during treatment.

[0008] In addition, one objective of the present disclosure is to provide an ergonomic design optimized for the user through the design of an earset and headset that considers user convenience and fit, and at the same time provide a system capable of precisely measuring biosignals.

[0009] However, the technical problems that this embodiment aims to solve are not limited to the technical problems described above, and other technical problems may exist.

[0010] A wearable type biosignal monitoring device according to one embodiment of the present disclosure may include: an earset housing having at least one cover to partition an internal space and at least one opening formed therein; an in-ear coupled to the earset housing and having a shape extending outwardly from the earset housing while communicating with the at least one opening; a speaker disposed in the internal space of the earset housing and configured to output emitted sound waves through the in-ear; and a microphone disposed in the internal space of the earset housing and configured to receive reflected sound waves through the in-ear.

[0011] According to one embodiment of the present disclosure, ear pain trauma resulting from pain or discomfort caused by pressure changes between the user's outer ear and middle ear in a hyperbaric oxygen therapy environment can be alleviated, and anxiety and discomfort that may occur during treatment can be minimized.

[0012] The earphones and headsets of the present invention adopt an advanced ergonomic design considering the user's body structure and the treatment environment, thereby enabling highly reliable data transmission through a stable wired connection method, while also allowing for flexible use in the treatment environment through a detachable earset structure with a cradle and headset.

[0013] FIG. 1 is a simplified block diagram illustrating an automatic pressure control system for a high-pressure oxygen chamber according to one embodiment of the present disclosure.

[0014] FIG. 2 is a signal flow diagram of an automatic pressure control system for a high-pressure oxygen chamber according to one embodiment of the present disclosure.

[0015] FIG. 3 is a block diagram of an MCU module according to one embodiment of the present disclosure.

[0016] FIG. 4 is a circuit diagram of a speaker driving circuit according to one embodiment of the present disclosure.

[0017] FIG. 5 is a circuit diagram of a microphone driving circuit according to one embodiment of the present disclosure.

[0018] Figure 6 is a graph showing the admittance measurement results when the Valsalva maneuver is performed.

[0019] Figure 7 is a graph showing the pattern of change in admittance during Valsalva breathing.

[0020] Figure 8 is a graph showing the results of admittance measurements according to swallowing saliva.

[0021] Figure 9 is a graph showing the pattern of change in admittance according to swallowing saliva.

[0022] FIG. 10 is a rear perspective view of an earpiece included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0023] FIG. 11 is a front perspective view of an earpiece included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0024] FIG. 12 is a combined perspective view of an earpiece and a cradle included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0025] FIG. 13 is an exploded perspective view of an earpiece and a cradle included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0026] FIG. 14 is a front perspective view of an earpiece and a cradle in a separated state included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0027] FIG. 15 is a rear perspective view of an earpiece and a cradle in a separated state included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0028] FIG. 16 is a front perspective view of the rear cover of a cradle according to one embodiment of the present disclosure.

[0029] FIG. 17 is an exploded perspective view of a headset included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0030] FIG. 18 is a perspective view of a headset included in a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0031] FIG. 19 is a combined perspective view of an earpiece and a headset according to one embodiment of the present disclosure.

[0032] FIG. 20 is a diagram showing a wearer wearing a wearable type biosignal monitoring device according to one embodiment of the present disclosure.

[0033] Embodiments of the present invention are described below with reference to the attached drawings to enable those skilled in the art to easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0034] Throughout this specification, when a component is described as being located "on" another component, this includes not only cases where a component is in contact with another component, but also cases where another component exists between the two components.

[0035] Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0036] Throughout this specification, terms of degree such as “about,” “substantially,” etc., are used to mean at or near the stated value when inherent manufacturing and material tolerances are presented in the stated meaning, and are used to prevent unscrupulous infringers from unfairly exploiting the disclosure in which precise or absolute values ​​are mentioned to aid in understanding this specification. Throughout this specification, terms of degree such as “step” or “step of” do not mean “step for”.

[0037] Throughout this specification, the term “combination(s) of these” included in the Markush-type expression means one or more mixtures or combinations selected from the group consisting of the components described in the Markush-type expression, and means including one or more selected from the group consisting of said components.

[0038] Throughout this specification, the description "A and / or B" means "A or B, or A and B".

[0039] Hereinafter, embodiments and examples of the present invention will be described in detail with reference to the attached drawings. However, the present invention may not be limited to these embodiments and examples and the drawings.

[0040] FIG. 1 is a simplified block diagram illustrating an automatic pressure control system for a high-pressure oxygen chamber according to one embodiment of the present disclosure. FIG. 2 is a signal flow diagram of an automatic pressure control system for a high-pressure oxygen chamber according to one embodiment of the present disclosure.

[0041] Referring to FIGS. 1 and 2, an automatic pressure control system for a high-pressure oxygen chamber according to one embodiment includes a chamber (10), a biosignal monitoring device (20), an MCU module (30), an air supply valve (50), an exhaust valve (60) and / or a processor (40).

[0042] A chamber (10) according to one embodiment may be configured for a patient to enter and receive high-pressure oxygen therapy. To this end, the chamber (10) is formed as a sealed container structure in which a space is formed for a patient to be positioned inside, and may be provided with an entrance.

[0043] According to one embodiment, the chamber (10) may be provided in a cylindrical shape. Accordingly, the pressure resistance performance capable of withstanding the pressure difference between the outside and inside of the chamber (10) may be improved. In one embodiment, at least one of a bed or a chair may be provided inside the chamber (10).

[0044] A biosignal monitoring device (20) according to one embodiment may be configured to generate sound waves and receive reflected sound waves to measure the condition of the eardrum. In one embodiment, the biosignal monitoring device (20) is mounted on the patient's ear and may generate sound waves toward the patient's eardrum and receive sound waves reflected from the patient's eardrum to measure the intensity of the sound waves.

[0045] According to one embodiment, the MCU module (30) may be electrically connected to the biosignal monitoring device (20) to control the biosignal monitoring device (20) to generate sound waves and to control the biosignal monitoring device (20) to receive sound waves reflected from the biosignal monitoring device (20).

[0046] A processor (40) according to one embodiment can estimate the state of the eardrum based on the intensity of the sound waves input from the MCU module (30). In one embodiment, the processor (40) can generate a control signal for the internal pressure of the chamber (10) based on the estimated state of the eardrum.

[0047] A processor (40) according to one embodiment may be implemented using one or more general-purpose computers or special-purpose computers. In one embodiment, the processor (40) may execute an operating system (OS) and one or more software applications executed on the operating system. Additionally, the processor (40) may access, store, manipulate, process, and generate data in response to the execution of software.

[0048] According to one embodiment, the air supply valve (50) may be configured to open or close the air supply path connected to the chamber (10) according to a control signal from the processor (40). In one embodiment, when the air supply valve (50) is opened, air is introduced into the chamber (10), and the pressure inside the chamber (10) may increase.

[0049] An exhaust valve (60) according to one embodiment may be configured to open or close an exhaust passage connected to a chamber (10) according to a control signal from a processor (40). In one embodiment, when the exhaust valve (60) is opened, air inside the chamber (10) is discharged to the outside, and the pressure inside the chamber (10) may be reduced.

[0050] An automatic pressure control system for a high-pressure oxygen chamber according to one embodiment can control pressure by PID control. In one embodiment, the processor (40) can open the supply solenoid valve (51) and the exhaust solenoid valve (61) when treatment begins.

[0051] A processor (40) according to one embodiment can control an air supply proportion valve (53) and / or an exhaust proportion valve (63) by obtaining an MV (manipulated variable) value through a PID operation, and obtaining an MV (manipulated variable) value through a pressure sensor (70), and presenting the pressure value inside the chamber (10) as a PV (process variable).

[0052] Barotrauma may occur due to the pressure difference between the inside and outside of the cells of organs within the body during the process of pressurizing pressure using a chamber (10) for hyperbaric oxygen therapy. Barotrauma is defined as a compound word of "baros," meaning pressure, and "trauma," meaning injury. Barotrauma occurring during hyperbaric oxygen therapy includes external auditory canal barotrauma, middle ear barotrauma, inner ear barotrauma, sinus barotrauma, lung barotrauma, and teeth barotrauma. Among these, middle ear barotrauma occurs most frequently due to a lack of pressure equilibrium between the external and middle ears. When middle ear barotrauma occurs, the patient may experience symptoms ranging from mild pain to hearing loss and bleeding, and in severe cases, eardrum rupture. Middle ear trauma can be prevented by opening the Eustachian tube to equalize pressure between the outer ear and the middle ear. Methods for achieving pressure equalization include the Toynbee breathing technique, Valsalva breathing technique, Frenzel technique, Lowry technique, Edmonds technique, swallowing saliva, and yawning.

[0053] Conventional methods to prevent middle ear barotrauma during hyperbaric oxygen therapy include the use of nasal sprays and the mastery of breathing techniques for pressure equalization. However, since the assessment of middle ear barotrauma during treatment relies on conversation between the patient and the medical professional, the risk of occurrence remains even with appropriate preventive measures. Therefore, there is a need for a method to objectively assess middle ear barotrauma by directly monitoring the condition of the eardrum in real-time during hyperbaric oxygen therapy, rather than relying on the patient's subjective feelings.

[0054] An automatic pressure control system and method for a high-pressure oxygen chamber that detects a pressure equilibrium state between the outer ear and the middle ear according to one embodiment of the present disclosure can objectively determine barotrauma through a biosignal monitoring device (20).

[0055] In one embodiment, an automatic pressure control system and method can determine the condition of the eardrum by measuring the admittance of the eardrum through a biosignal monitoring device (20). Here, admittance is the reciprocal of impedance and indicates the degree to which vibrations (e.g., sound waves) are easily transmitted; a higher value of admittance indicates a property of better transmission of vibrations, and the unit used is mho.

[0056] A biosignal monitoring device (20) according to one embodiment may include a speaker (222) capable of presenting a test sound to the eardrum and a microphone (223) capable of receiving sound waves reflected from the eardrum.

[0057] In one embodiment, the speaker (222) outputs a single sound wave (e.g., 226 [Hz]), and the single sound wave can vibrate the air particles of the outer ear. The eardrum resonates with the vibration of the sound wave to receive the sound wave, and any sound waves that are not absorbed are reflected and input to the microphone (223). Depending on the pressure in the outer ear, the eardrum bends toward the outer ear and toward the middle ear.

[0058] Depending on the degree of curvature of the eardrum, the intensity of the absorbed sound waves and the intensity of the reflected sound waves can be varied. Here, a single sound wave output from the speaker (222) is the sound pressure, and the reflected sound input to the microphone (223) is the sound velocity, and the admittance of the eardrum according to the pressure change can be measured using the sound pressure and sound velocity obtained in this way.

[0059] A biosignal monitoring device (20) according to one embodiment may be provided in the form of a headset. In one embodiment, the biosignal monitoring device (20) is provided in the form of a headset including a headband and ear pads, and a microphone (223) and a speaker (222) are formed in an in-ear protruding from the surface of the headset that contacts the ear and can be inserted into the patient's outer ear. Accordingly, the biosignal monitoring device (20) is provided in a form familiar to patients, thereby facilitating guidance on how to wear it.

[0060] A biosignal monitoring device (20) according to one embodiment may include a speaker (222) and a microphone (223).

[0061] A speaker (222) according to one embodiment can receive an electrical signal for a test sound from an MCU module (30), convert it into a sound wave, and generate a test sound. In one embodiment, the speaker (222) can be inserted into the patient's external ear and generate sound waves toward the eardrum.

[0062] In one embodiment, the speaker (222) may have a frequency range of output sound waves from 200 [Hz] to 55 [kHz], and may be capable of outputting a single sound wave (e.g., 226 Hz). In one embodiment, the maximum output sound pressure of the speaker (222) is 127 [dB], and can ensure even output capability across all frequency bands.

[0063] A microphone (223) according to one embodiment can convert sound waves reflected from the eardrum into an electrical signal. In one embodiment, the microphone (223) can be inserted into the patient's outer ear so that the direction of the eardrum is the sound receiving direction. In one embodiment, the microphone (223) can convert sound waves reflected from the eardrum into an electrical signal and transmit it to an MCU module.

[0064] In one embodiment, the input frequency range of the microphone (223) may be from 20 [Hz] to 10 [kHz], which may be a sufficient frequency range to receive a single sound wave (e.g., 226 Hz) reflected through the eardrum.

[0065] In one embodiment, the biosignal monitoring device (20) may be provided with a passage to equalize the pressure in the outer ear with the pressure inside the chamber (10). By moving air into the chamber (10) and the outer ear through the passage, the pressure in the outer ear can be equalized with the pressure inside the chamber (10).

[0066] In one embodiment, the chamber (10) may be equipped with a pressure sensor (70). In one embodiment, the processor (40) may obtain the pressure of the outer ear by measuring the pressure inside the chamber (10) through the pressure sensor (70).

[0067] FIG. 3 is a block diagram of an MCU module (30) according to one embodiment of the present disclosure. FIG. 4 is a circuit diagram of a speaker driving circuit (301) according to one embodiment of the present disclosure. FIG. 5 is a circuit diagram of a microphone driving circuit (302) according to one embodiment of the present disclosure.

[0068] Referring to FIGS. 3 to 5, an MCU module (30) according to one embodiment may be connected to a biosignal monitoring device (20) to exchange signals through a 4-pole Aux cable. In one embodiment, the MCU module (30) transmits a test sound to a speaker (222) of the biosignal monitoring device (20), receives a sound wave reflected through a microphone (223) as an electrical signal, and transmits the acquired microphone signal to a processor (40).

[0069] According to one embodiment, the MCU module (30) may be an STM32F103RCT6 using an ARM-Cortex M3 core, which is a 32-bit microprocessor, for the control and computation of the entire system.

[0070] According to one embodiment, the MCU module (30) may include an LED section for indicating the state of the system, a UART section for communicating with the processor (40), a speaker driving circuit (301) and a microphone driving circuit (302) for driving the speaker (222) and the microphone (223). In one embodiment, an FC6818, which is a 4-pole earphone terminal, may be used for signal exchange with the speaker (222) and the microphone (223) of the biosignal monitoring device (20).

[0071] An MCU module (30) according to one embodiment can control a speaker (222) using a speaker driving circuit (301) as shown in FIG. 4. For example, the speaker driving circuit (301) can apply a sinusoidal signal with a frequency of 226 Hz and an amplitude of 0-2.5 V to the DAC input terminal of the speaker driving circuit (301) using a DAC (Digital to analog converter) of the MCU. Here, the DAC resolution of the STM32F103RCT6 may be 12 bits.

[0072] In one embodiment, since a sinusoidal wave with an amplitude of 0 to 2.5V is a large voltage for driving the speaker (222), the voltage can be lowered to 0 to 100mV using an OPAMP voltage divider circuit. The sinusoidal signal with reduced amplitude can vibrate a capacitor inside the speaker (222) to generate sound pressure.

[0073] According to one embodiment, the MCU module (30) can control the microphone (223) using a microphone driving circuit (302) as shown in FIG. 5. In one embodiment, the space velocity input to the microphone (223) can be converted into voltage and input to the microphone driving circuit (302). For example, the amplitude of the microphone (223) can be 0-1.3V, and the maximum amplitude of the 226Hz signal can be 132mV. The input range of the ADC (Analog to Digital Converter) pin of the MCU is 0-3.3V, and it is possible to perform ADC without any amplification or filtering; however, to convert to the maximum resolution, the DC offset of the microphone signal is reset to 1.65V using the microphone driving circuit (302), and then only the 226Hz signal is amplified 25 times. The amplified signal can be input to the ADC pin of the MCU module (30) and transmitted to the processor (40).

[0074] An automatic pressure control system for a high-pressure oxygen chamber according to one embodiment can transmit a start command signal to an MCU module (30) in process 1 when treatment starts. Upon receiving the start command signal, the MCU module (30) can perform process 2.

[0075] In one embodiment, the MCU module (30) can take a Fixed point digital IIR filter in process 2 and store it in an array. The designed digital filter is a second-order 226Hz peak filter, and the Q-factor is 50. Through digital filtering, all components other than 226Hz are removed, and when the array of filtered data reaches 1024, a 1024-point FFT is taken to calculate the power of 226Hz, and the admittance value of the eardrum can be obtained using the power value.

[0076] Figure 6 is a graph showing the admittance measurement results when the Valsalva maneuver is performed. Figure 7 is a graph showing the change pattern of admittance during the Valsalva maneuver.

[0077] FIG. 6 (a) shows the pressure inside the chamber (10), FIG. 6 (b) shows the pressure difference of the right ear, FIG. 6 (c) shows the admittance of the right ear, FIG. 6 (d) shows the pressure difference of the left ear, FIG. 6 (e) shows the admittance of the left ear, and the horizontal axis of each graph represents time.

[0078] Referring to Figures 6 and 7, it can be observed that pressurization continues from the point where pressure imbalance begins until the pressure difference between the outer ear and the middle ear becomes 0.04 [ata], and that pressure is maintained when the pressure difference between the outer ear and the middle ear becomes 0.04 [ata].

[0079] When pressure equalization is achieved using the Valsalva maneuver, air from the lungs supplies air to the sinuses and Eustachian tube. Due to the air entering the Eustachian tube, the eardrum, which was bent toward the middle ear by external pressure, bends toward the outer ear. At this point, the eardrum undergoes a 100% recovery state before bending toward the outer ear, but the admittance value does not rise to its maximum. This is believed to be due to data loss caused by the faster rate of change in the eardrum compared to the data processing speed, as the admittance value overlap is used during the calculation process. However, the algorithm can identify the momentary rise as the point of pressure equalization, thereby maintaining the pressurized state.

[0080] Immediately after performing the Valsalva maneuver, the admittance value of the eardrum becomes minimum. Since the direction of curvature of the eardrum cannot be determined using only the admittance value of the eardrum, the system determines the condition of the eardrum as a state of pressure imbalance. However, because pressure equilibrium was achieved just before, the pressure in the chamber (10) continues to rise, causing the eardrum, which was bent toward the outer ear, to slowly bend toward the inner ear again, resulting in a pattern as shown in Fig. 7. The pressure in the chamber (10) increases by 0.002 [ata] per second, and since the time from immediately after the Valsalva maneuver to the determination of the next pressure equilibrium point is within 10 seconds, the estimated pressure difference between the outer ear and the middle ear is 0.04 [ata] or less.

[0081] As illustrated in FIG. 7, when a state of pressure equilibrium between the outer ear and the inner ear is achieved by the Valsalva maneuver, the admittance shows a change pattern (1010) of continuous increase before the point of pressure equilibrium, and the admittance shows a change pattern (1020) of continuous decrease after the point of pressure equilibrium.

[0082] Figure 8 is a graph showing the results of admittance measurements according to swallowing saliva. Figure 9 is a graph showing the pattern of change in admittance according to swallowing saliva.

[0083] FIG. 8 (a) shows the pressure inside the chamber (10), FIG. 8 (b) shows the pressure difference of the right ear, FIG. 8 (c) shows the admittance of the right ear, FIG. 8 (d) shows the pressure difference of the left ear, FIG. 8 (e) shows the admittance of the left ear, and the horizontal axis of each graph represents time.

[0084] When swallowing, the momentary muscle movement causes the Eustachian tube to open for a brief period, allowing external air to enter the middle ear. Unlike the Valsalva maneuver, which forcefully pushes air into the middle ear through the Eustachian tube, swallowing allows external air to naturally enter while the tube is momentarily open; therefore, the eardrum does not recover 100%, showing a recovery rate of approximately 50–60% depending on the individual. In fact, when the admittance of subjects who performed swallowing was measured, the maximum admittance value was higher.

[0085] As illustrated in FIG. 9, when a state of pressure equilibrium between the outer ear and the inner ear occurs due to swallowing saliva, the admittance shows a change pattern (1210) of continuously increasing before the point of pressure equilibrium, and the admittance shows a change pattern (1220) of continuously decreasing after the point of pressure equilibrium.

[0086] According to the prior art, if the admittance value is higher than the threshold value set before the start of treatment, it is determined that pressure equilibrium has been achieved, and the Chamber Pressure, which is the current pressure value of the chamber (10), is assigned to the variable Middle ear pressure. If the acquired admittance value is lower than the threshold value, it is determined that pressure equilibrium has not been achieved, and the process returns to the beginning of process 2 without any further action, and after obtaining 1024 samples and calculating the first acoustic admittance, the signal acquired from the MCU module (30) is overlapped by 25% and the process 1 is repeated until it is finished.

[0087] According to conventional technology using a threshold value, the admittance of the patient's eardrum is measured once before hyperbaric oxygen therapy, and the threshold value is set to about 40% of the maximum value, which varies from person to person, and it is determined that pressure equilibrium has been reached when the threshold value is exceeded.

[0088] However, according to the conventional technology, the patient's admittance must be measured and the maximum and minimum values ​​entered before entering the chamber (10), and a problem may arise where, if a high value corresponding to noise is obtained for the admittance, pressure equilibrium is judged to have been reached even though it has not actually been reached. In addition, since the overall admittance value increases as the pressure in the chamber (10) increases, there were limitations to the conventional technology using the Threshold value.

[0089] An automatic pressure control system according to one embodiment can determine whether pressure equilibrium has been achieved based on the change pattern of the measured admittance.

[0090] Referring to Figures 7 and 9, according to the admittance measurement pattern based on Valsalva breathing or swallowing, when pressure equilibrium is achieved, a pattern of continuously rising or continuously falling upward and / or downward in a certain interval can be observed.

[0091] An automatic pressure control system according to one embodiment can set a window in a certain part of a graph showing a change pattern of admittance, extract points (e.g., 6 points) from an initial value to a final value within the window, and determine whether the admittance has continuously risen or fallen (first condition).

[0092] An automatic pressure control system according to one embodiment can determine whether, when admittance continuously rises, the last point, which is the largest value within the window, is greater than or equal to a preset multiple of the first point, which is the lowest value (e.g., first point x 1.1 < last point) (second condition).

[0093] An automatic pressure control system according to one embodiment can determine whether, when the admittance is continuously decreasing, the first point, which is the largest value within the window, is greater than or equal to a preset multiple of the last point, which is the lowest value (e.g., last point x 1.1 < first point) (second condition).

[0094] An automatic pressure control system according to one embodiment can determine that pressure equilibrium has been achieved when the first condition and the second condition are simultaneously satisfied. By being set to simultaneously satisfy the first condition and the second condition, it has a robust effect against noise even if the admittance value spikes high or low due to large noise.

[0095] An automatic pressure control system according to one embodiment can calculate admittance by overlapping a portion of the received sound wave data.

[0096] According to the prior art, sound waves are transmitted from a speaker (222) to an eardrum, and sound waves reflected from the eardrum are received by a microphone (223). The microphone (223) receives 7,232 pieces of data (7,232 [Hz]) per second, and 1,024 pieces of data are collected and converted into a frequency diagram using an FFT (Fast Fourier Transform) calculation to obtain 226 [Hz] data, thereby obtaining one piece of data (admittance) with a frequency of 226 [Hz].

[0097] According to this conventional technology, 7,232 sound wave data points are received per second, and 1,024 of them are accumulated and calculated, so about 7 admittance data points per second could be obtained.

[0098] An automatic pressure control system according to one embodiment can first calculate using accumulated 1,024 sound wave data, then discard only a portion (e.g., 100), receive new sound wave data equal to the number discarded (e.g., 100), and obtain admittance data again using 1,024 sound wave data. Accordingly, after obtaining the first admittance value by accumulating the first 1,024 sound wave data, admittance can be obtained every time 100 sound wave data are obtained, thereby obtaining more admittance values. For example, if 90% of the sound wave data is overlapped, about 70 admittance data can be obtained per second.

[0099] Therefore, by maintaining accumulated sound wave data and updating only a portion of it, real-time reflection can be improved, and accuracy can be improved by increasing the number of admittance values.

[0100] An automatic pressure control system according to one embodiment can acquire sound wave data and admittance values ​​using a microphone (223) as follows (example).

[0101] For the right microphone, the lower 6 bits of the 12 bits and the distinguishing bit (00) are added by shifting it 2 bits to the left, and the 8 bits are transmitted to the UART section for communication with the processor (40). Then, the upper 6 bits of the 12 bits and the distinguishing bit (01) are added by shifting it 6 bits to the right and 2 bits to the left (a total of 4 bits may be shifted to the right), and the 8 bits are transmitted to the UART section. Likewise, for the left microphone, the distinguishing bits (10, 11) are added and each is transmitted to the UART section.

[0102] When the distinguishing bits 00, 01, 10, and 11 are received consecutively, the data acquisition unit of the UART section can complete the collection of Mic Raw data by multiplying the upper and lower 6-bit data, excluding the distinguishing bits when it is 00 and when it is 01, by X 64 (shifting the bits 6 positions to the left) and adding it to the lower 6-bit data.

[0103] The UART section can filter the data using a Point by Point IIR filter. According to the filter characteristics (2nd order IIR filter, Fs = 7232, Q=50), the forward coefficient = [0.00195965, 0, -0.00195965] and the inverse coefficient = [1, -1.95773, 0.996081], and 1024 pieces of IIR-processed data from the microphone (223) can be collected and an FFT can be performed. When the 1024 pieces of data are FFTed, 1024 pieces are obtained, and after FFT, the data at the 32nd index (31st index when indexed from 0) of the 1024 pieces becomes 226Hz data.

[0104] When 7232Hz is FFTed with N = 1024, the resolution becomes 7232 / 1024 = 7.0625, and 7.0625 * 32 equals 226Hz. Therefore, to obtain 226Hz data from the sound wave data of the microphone (223), the 32nd index of the array of 1024 FFT results displays a 226Hz signal.

[0105] The window size can be set from 0 to 1024. For example, it is set to 100, and when 100 out of 1024 are discarded and 100 are collected again, an FFT is performed, and since it is 7232Hz, about 72 data points can be obtained per second.

[0106] Since acoustic admittance is speaker power / microphone power, the admittance can be calculated using speaker power = 261793.72 and the acquired 226Hz microphone power.

[0107] An automatic pressure control system according to one embodiment can detect pressure equilibrium based on an acquired admittance value.

[0108] For example, if 120 windows of admittance are taken and admittance values ​​of 0, 19, 39, 59, 79, 99, and 119 increase sequentially, the automatic pressure control system can determine that pressure equilibrium is achieved when conditions 1 and 2 below are satisfied simultaneously. Additionally, the current pressure of the chamber (10) can be estimated as the inner ear pressure of the patient.

[0109] Condition 1: ABT_L[0] < ABT_L

[0019] & ABT_L

[0019] < ABT_L

[0039] & ABT_L

[0039] < ABT_L

[0059] & ABT_L

[0059] < ABT_L

[0079] & ABT_L

[0079] < ABT_L

[0099] & ABT_L

[0099] < ABT_L

[0119]

[0110] Condition 2 : ABT_L[0] * 1.1 < ABT_L

[0119]

[0111] Conversely, for example, even if the admittance values ​​of 0, 19, 39, 59, 79, 99, and 119 are sequentially decreased by taking 120 windows of admittance, the automatic pressure control system can determine that pressure equilibrium is achieved when conditions 1 and 2 below are satisfied simultaneously. Additionally, the current pressure of the chamber (10) can be estimated as the inner ear pressure of the patient.

[0112] Condition 1: ABT_L[0] > ABT_L

[0019] & ABT_L

[0019] > ABT_L

[0039] & ABT_L

[0039] > ABT_L

[0059] & ABT_L

[0059] > ABT_L

[0079] & ABT_L

[0079] > ABT_L

[0099] & ABT_L

[0099] > ABT_L

[0119]

[0113] Condition 2 : ABT_L

[0119] * 1.1 < ABT_L[0]

[0114] An automatic pressure control system according to one embodiment may pause pressurization when the pressure difference between the estimated patient's inner ear pressure and the chamber (10) pressure becomes greater than 0.06 [ata]. In one embodiment, if the pressure is not relieved for 15 seconds after the pressurization is paused, the automatic pressure control system may slowly proceed with depressurization.

[0115] An automatic pressure control system according to one embodiment may release the pressurization pause when pressure equilibrium is detected due to depressurization, or when the pressure difference between the estimated patient's inner ear pressure and the chamber (10) pressure becomes less than 0.02 [ata], and after maintaining the pressure at that pressure for 7 seconds, resume pressurization according to the table.

[0116] An automatic pressure control system according to one embodiment obtains the pressure of the chamber (10) through a pressure sensor (70) during a treatment waiting process prior to starting treatment, and the treatment waiting process can be terminated when treatment starts and process 1 is operated. At this time, the measured pressure of the chamber (10) is input as the initial value of SP and generally has a value of 1 [ata]. The current pressure of the chamber (10) during treatment, known as Chamber Pressure, is obtained through the pressure sensor (70) and assigned to the variable PV for use in the processor (40). The difference pressure (DP), which is the pressure difference between the outer ear and the middle ear, can be calculated using the current pressure PV and the Middle ear pressure estimated through process 2 calculation.

[0117] The Hold Flag becomes true when the value of DP exceeds 0.04, indicating that the pressure is maintained by not changing SP, and the initial value is false. In an automatic pressure control system according to one embodiment, if the Hold Flag is false, it indicates that the system is pressurizing, so the system determines whether to maintain or pressurize the pressure by comparing the value of DP with 0.04. In an automatic pressure control system according to one embodiment, if the Hold Flag is true because the DP, which is the pressure difference between the outer and middle ear, already exceeds 0.04, the system compares the value of DP with 0.02; if it becomes less than 0.02, it determines that the pressure imbalance has been resolved, the Hold Flag becomes false, and the pressure can be increased by applying a value increased by 0.002 to the existing SP value.

[0118] An automatic pressure control system according to one embodiment can control the pressure of a chamber (10) by calculating SP and PV determined according to previous calculation results through a PID controller to obtain and output MV, and controlling a proportional control valve.

[0119] According to one embodiment, the automatic pressure control system determines that pressurization is complete when the actual pressure PV of the chamber (10) exceeds the desired pressure to be reached for treatment, issues a stop command to the MCU module (30), and terminates the algorithm. The algorithm is applied to the right ear and the left ear respectively, and the algorithm is applied even if pressure equalization is not performed in one of the two ears.

[0120] An automatic pressure control system according to one embodiment can measure admittance while controlling the pressure of the chamber (10) after the patient is placed inside the chamber (10). The hyperbaric oxygen chamber is automatically operated to increase the pressure at a rate of 0.002 [ata / sec]. At this time, the patient voluntarily performs pressure equalization continuously. When the pressure of the chamber (10) reaches 1.1 [ata], the patient is instructed to prohibit actions that could lead to pressure equalization and to maintain a state of pressure imbalance. When the pressure difference between the middle ear and the outer ear becomes 0.04 [ata] or more by maintaining the state of pressure imbalance, the pressure of the chamber (10) is confirmed to be maintained, and then pressure equalization is instructed. When the pressure of the chamber (10) reaches 1.2 [ata], the above process is repeated, and when it reaches 1.3 [ata], the measurement is terminated and the pressure returns to atmospheric pressure.

[0121] FIG. 10 is a rear perspective view of an earpiece (100) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 11 is a front perspective view of an earpiece (100) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 12 is a combined perspective view of an earpiece (100) and a cradle (210) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 13 is an exploded perspective view of an earpiece (100) and a cradle (210) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure.

[0122] Referring to FIGS. 10 to 13, a wearable type biosignal monitoring device (20) according to one embodiment may include an earset (100), a cradle (210), and / or a headset (230). In one embodiment, the earset (100) may be provided in two (100, 100') corresponding to the left ear and the right ear, respectively, and the earset (100) may each be wired to the cradle (210) through a first cable (220).

[0123] An earset (100) according to one embodiment may include an earset housing (110), an in-ear (130), a speaker (222), and / or a microphone (223). In one embodiment, the earset (100) may be provided in two (100, 100') corresponding to the left ear and the right ear, respectively, and may be formed symmetrically with respect to each other.

[0124] An earset housing (110) according to one embodiment may have at least one cover (111, 113, 115) to partition an internal space, and at least one opening (117, 119) may be formed. In one embodiment, most of the components including the earset housing (110) may be formed of a plastic material and may be formed of an ABS (Acrylonitrile Butadiene Styrene) material.

[0125] An earset housing (110) according to one embodiment may be composed of a lower cover (232)(111), a middle cover (113) and / or a top cover (115), and an internal space may be partitioned between the lower cover (232)(111) and the middle cover (113).

[0126] In the internal space of the earset housing (110) according to one embodiment, a wire connection part (120), a connecting ring (125), and / or a circuit board (not shown) may be disposed. In one embodiment, a speaker (222) and / or a microphone (223) may be disposed inside the wire connection part (120). In one embodiment, a controller (e.g., a processor and / or memory, etc.) configured to control the operation of the speaker (222) and the microphone (223) may be provided on the circuit board (not shown).

[0127] In an earpiece housing (110) according to one embodiment, an opening (117) open to an in-ear (130) and a through hole (119) through which a first cable (220) passes may be formed. In one embodiment, a wire connection part (120) is provided at the end of the first cable (220) that extends into the interior of the earpiece housing (110) through the through hole, and the wire connection part (120) may be positioned toward the opening (117) open to the in-ear (130).

[0128] An in-ear (130) according to one embodiment may have a shape that is coupled to an earset housing (110) and extends outwardly from the earset housing (110) while communicating with at least one opening (117).

[0129] According to one embodiment, the in-ear (130) may have a shape that extends in the longitudinal direction so as to be inserted into the interior of the user's outer ear, and may be formed to communicate with the opening (117) of the earset housing (110). In one embodiment, the extended end of the in-ear (130) may be open and communicate with the interior space of the earset housing (110).

[0130] An in-ear (130) according to one embodiment may be configured to be inserted into the interior of the outer ear while worn by a user. In one embodiment, the in-ear (130) may have a funnel-shaped insertion part (131), and an elastic body (135) formed of a material capable of elastic deformation within the interior of the outer ear (e.g., silicone, etc.) may be attached to an extended end of the insertion part (131). In one embodiment, the elastic body (135) may be pressed by the inner surface of the outer ear and elastically deformed, thereby adhering closely to the interior of the user's outer ear.

[0131] A speaker (222) according to one embodiment may be configured to output sound waves of a preset frequency band.

[0132] A microphone (223) according to one embodiment may be configured to receive sound waves of a receiving band including a preset frequency band. A microphone (223) according to one embodiment may be configured to receive reflected sound waves through the in-ear (130) that are reflected by the user's eardrum from emitted sound waves emitted into the interior of the outer ear through the in-ear (130).

[0133] According to one embodiment, the speaker (222) and microphone (223) are positioned inside the earset housing (110) and may be positioned to output or receive sound waves into the in-ear (130) through an opening (117) that is open to the in-ear (130). In one embodiment, the speaker (222) and microphone (223) may be positioned inside a wire connection part (120) provided at the end of the cable.

[0134] An earpiece (100) according to one embodiment may further include an ear clip (150) having one end coupled to an earpiece housing (110), extending in the longitudinal direction to correspond to the shape of the earlobe, and configured to be hooked onto the earlobe when worn by a user.

[0135] According to one embodiment, the ear clip (150) may be extended in a curved shape in the earpiece housing (110) to correspond to the shape of the earlobe. In one embodiment, the ear clip (150) may be formed of a material capable of elastic deformation (e.g., silicone, etc.), or one end of which is attached to the earpiece housing (110) may be rotatably attached to the earpiece housing (110).

[0136] An ear clip (150) according to one embodiment can be worn by a user by being positioned at the rear of the user's earlobe through rotation or deformation, etc., relative to an earset housing (110) located at the front of the earlobe, and thus being hooked onto the earlobe.

[0137] A wearable type biosignal monitoring device (20) according to one embodiment may further include a cradle (210) having an insertion groove (213) formed on one side so that an in-ear (130) can be inserted inside, and at least a portion (215) of one side formed in a shape corresponding to at least a portion of an earpiece housing (110).

[0138] A cradle (210) according to one embodiment may be detachably coupled to an earpiece (100). In one embodiment, at least a portion of the earpiece (100) may be fixed in a state where it is inserted into one side of the cradle (210).

[0139] According to one embodiment, at least a portion (215) of one surface of the cradle (210) may be formed to be indented inward in a shape corresponding to at least a portion of the earset (100) (e.g., earset housing (110), ear clip (150), etc.). According to one embodiment, an insertion groove (213) may be formed on one surface of the cradle (210) so as to be indented inward and formed to allow the in-ear (130) of the earset (100) to be inserted.

[0140] A cradle (210) according to one embodiment may serve as an intermediate connector of an earset (100) corresponding to both ears.

[0141] A cradle (210) according to one embodiment may be electrically or signal-connected to an earset (100) through a first cable (220). A cradle (210) according to one embodiment may be electrically or signal-connected to an external device (e.g., an MCU module (30)) through a second cable (230).

[0142] According to one embodiment, the second cable (230) is extended in the longitudinal direction, and one end is coupled to the earpiece housing (110) and electrically or signal-connected to a speaker (222) or microphone (223), and the other end can be electrically or signal-connected to a cradle (210).

[0143] In one embodiment, the first cable (220) may be provided in two parts so as to be connected to the earset (100) corresponding to the left ear and the right ear, respectively.

[0144] A second cable (230) according to one embodiment extends in the longitudinal direction and can electrically or signal-connect the cradle (210) to an external device.

[0145] FIG. 14 is a front perspective view of an earpiece (100) and a cradle (210) in a separated state included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 15 is a rear perspective view of an earpiece (100) and a cradle (210) in a separated state included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 16 is a front perspective view of a side cover (212) of a cradle (210) according to one embodiment of the present disclosure.

[0146] A cradle (210) according to one embodiment may be composed of a one-sided cover (211) and a other-sided cover (212). Components such as a circuit board may be placed in the space between the one-sided cover (211) and the other-sided cover (212) of the cradle (210) according to one embodiment.

[0147] In one embodiment, the first cable (220) and / or the second cable (230) may each have their respective ends penetrate at least one of the one-sided cover (211) or the other-sided cover (212) and be inserted into the space between the one-sided cover (211) and the other-sided cover (212) of the cradle (210).

[0148] According to one embodiment, an earpiece (100) and a cradle (210) can be coupled so as to be detachably connected by an attractive force due to magnetic force. In the earpiece (100) according to one embodiment, a first magnet (160) provided in the earpiece housing (110) is provided, and a second magnet (217) is provided in the cradle (210), so that a magnetic force can be generated between the first magnet (160) and the second magnet (217).

[0149] According to one embodiment, the first magnet (160) may be positioned facing one side of the cradle (210) when at least a portion of the earset housing (110) is fixed in a state where it is inserted into one side of the cradle (210). According to one embodiment, the first magnet (160) may be positioned laterally spaced from the in-ear (130).

[0150] In a cradle (210) according to one embodiment, a second magnet (217) may be provided that is positioned at a location corresponding to a first magnet (160) when the in-ear (130) is inserted into the insertion groove (213) and generates an attractive force with the first magnet (160). In a cradle (210) according to one embodiment, at least a portion of the earset housing (110) may be positioned on one surface so as to face the earset (100) when it is fixed in a state where it is inserted into one surface of the cradle (210).

[0151] In a cradle (210) according to one embodiment, a third magnet (219) may be provided to generate a magnetic field toward another surface formed on the opposite side of one surface.

[0152] According to one embodiment, the third magnet (219) may be positioned so as to face the opposite side of at least a portion of the earset housing (110) that is inserted into the cradle (210), and may be positioned, for example, on the other side cover (212).

[0153] A cradle (210) according to one embodiment may be detachably coupled to a designated location (e.g., a wall or door of a high-pressure oxygen chamber) through a third magnet (219). In one embodiment, the third cradle (210) may generate an attractive force due to magnetic force with a part formed of a metal material or a magnetic material at a designated location.

[0154] FIG. 17 is an exploded perspective view of a headset (230) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 18 is a perspective view of a headset (230) included in a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure. FIG. 19 is a combined perspective view of an earset (100) and a headset (230) according to one embodiment of the present disclosure. FIG. 20 is a state view of a user (U) wearing a wearable type biosignal monitoring device (20) according to one embodiment of the present disclosure.

[0155] Referring to FIGS. 17 to 20, a wearable type biosignal monitoring device (20) according to one embodiment may further include a headset (230) that is detachably coupled to an earpiece (100).

[0156] A headset (230) according to one embodiment may be worn by a user (U) in a combined state with an earset (100). A headset (230) according to one embodiment may be combined with two earsets (100, 100') corresponding to the left ear and the right ear, respectively.

[0157] In one embodiment, the headset (230) may have an earpiece housing (110) that can be detachably attached to the first ear cup (236) or the second ear cup (237).

[0158] A headset (230) according to one embodiment may be formed to be worn by a user (U) on both sides, and may be provided with a first ear cup (236) and a second ear cup (237) configured to correspond to the left ear and the right ear, respectively, when worn by the user (U) on both ends.

[0159] A headset (230) according to one embodiment may have a shape that extends along the shape of the head between the left ear and the right ear of the user (U). A headset (230) according to one embodiment may include head parts (231, 232, 233) formed by extending to both sides.

[0160] A head part (231, 232, 233) according to one embodiment is composed of an upper cover (231) and a lower cover (232), and may form a spaced-out space inside so that a cable can pass between the upper cover (231) and the lower cover (232). In one embodiment, the head part (231, 232, 233) may generate a restoring force (tension) according to elastic force when elastically deformed. A head part (231, 232, 233) according to one embodiment may further include a sliding part (233, 233') that is integrally coupled to the upper cover (231) or the lower cover (232) and extends from the left and right sides, respectively.

[0161] A headset (230) according to one embodiment may include a first side part (234, 235) slidably coupled to one side of a head part (231, 232, 233). A headset (230) according to one embodiment may include a second side part (234', 235') slidably coupled to the other side of a head part (231, 232, 233).

[0162] According to one embodiment, the first side part (234, 235) and the second side part (234', 235') may be slidably coupled to the sliding portion (233, 233') of the head part (231, 232, 233), respectively. According to one embodiment, the first side part (234, 235) and the second side part (234', 235') may be composed of an inner cover (234, 234') and an outer cover (235, 235') coupled to form a sliding space between them.

[0163] In one embodiment, at least a portion of the sliding part (233, 233') is inserted into the sliding space between the inner cover (234, 234') and the outer cover (235, 235'), and slides on the inner cover (234, 234') and the outer cover (235, 235'), thereby allowing the connection length of the first side part (234, 235) and the second side part (234', 235') to the head part (231, 232, 233) to be adjusted. In one embodiment, the sliding of the first side part (234, 235) and the second side part (234', 235') can be temporarily fixed by friction or locking connection with the sliding part (233, 233').

[0164] A first ear cup (236) according to one embodiment may be rotatably coupled to a first side part (234, 235). A second ear cup (237) according to one embodiment may be rotatably coupled to a second side part (234', 235').

[0165] According to one embodiment, the first ear cup (236) and the second ear cup (237) may be rotatable on the first side part (234, 235) and the second side part (234', 235') so as to be in close contact with the left ear and right ear of the user (U), respectively. In one embodiment, the axis of rotation of the first ear cup (236) and the second ear cup (237) may be extended in the front-rear direction while worn by the user (U).

[0166] In one embodiment, a fixing hole (238) may be formed in the first ear cup (236) or the second ear cup (237) so as to be fixed with at least a portion of the earset housing (110) inserted inside. In one embodiment, the earset housing (110) may be hooked and coupled to the first ear cup (236) or the second ear cup (237) with at least a portion inserted into the fixing hole (238).

[0167] According to one embodiment, the earpiece housing (110) may be inserted into the fixing hole (238) of the first ear cup (236) or the second ear cup (237) from the inner direction to the outer direction. According to one embodiment, the earpiece housing (110) may be fixed by being engaged with the first ear cup (236) or the second ear cup (237) in a state where at least a portion is inserted into the fixing hole (238) and exposed to the outside. According to one embodiment, the earpiece housing (110) may be released from the engagement by moving relative inward again while in the engaged state with the first ear cup (236) or the second ear cup (237).

[0168] According to one embodiment, the first ear cup (236) or the second ear cup (237) may be formed by combining a plurality of plates. According to one embodiment, the first ear cup (236) or the second ear cup (237) may be provided with a foam cushion (239) positioned to face inward at a location corresponding to the left ear and right ear of the user (U), respectively.

[0169] As illustrated in FIGS. 19 and 20, an earpiece (100) according to one embodiment may be worn by a user (U) in a state combined with a headset (230).

[0170] In one embodiment, the user (U) can combine the earset (100) and the headset (230) by wearing the headset (230) in addition to the earset (100) on each ear.

[0171] An earpiece (100) according to one embodiment can be worn separately by a user (U) while separated from a headset (230).

[0172] The functions realized by the components described herein may be implemented in a general-purpose processor, a specific-purpose processor, an integrated circuit, an Application Specific Integrated Circuit (ASIC), a Central Processing Unit (CPU), a circuit, and / or a combination thereof, which are programmed to realize the described functions. A processor may include transistors or other circuits and is considered to be a circuit or a processing circuit. A processor may be a programmed processor that executes a program stored in memory.

[0173] In this specification, circuits, parts, units, and means are hardware programmed to perform or execute the described functions. Such hardware may be any hardware disclosed in this specification or any hardware known to be programmed or execute the described functions.

[0174] If the hardware is a processor considered to be of a circuit type, the circuit, the part, means, or unit is a combination of the hardware and the software used to constitute the hardware and / or processor.

[0175] The foregoing description of the present disclosure is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present disclosure. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0176] The scope of the present disclosure is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present disclosure.

[0177] 10: Chamber 20: Biosignal monitoring device

[0178] 30: MCU Module 40: Processor

[0179] 50: Supply valve 60: Exhaust valve

[0180] 100 : Earset 110 : Earset Housing

[0181] 130 : In-ear 150 : Ear clip

[0182] 210 : Cradle 220 : 1st Cable

[0183] 230 : 2nd Cable 222 : Speaker

[0184] 223 : Microphone 230 : Headset

Claims

1. In a wearable type biosignal monitoring device, An earset housing having at least one cover to partition an internal space and at least one opening formed therein; An in-ear having a shape that is coupled to the above-mentioned earset housing and extends outwardly to the earset housing while communicating with at least one opening; A speaker disposed in the internal space of the above-mentioned earset housing and configured to output emitted sound waves through the in-ear; and A microphone comprising a microphone disposed in the internal space of the above-mentioned earset housing and configured to receive reflected sound waves through the in-ear, Biosignal monitoring device.

2. In Paragraph 1, The above speaker is configured to output sound waves in a preset frequency band, and The above microphone is configured to receive sound waves of a receiving band including the above preset frequency band, and The further comprising a controller configured to control the operation of the above speaker and the above microphone, Biosignal monitoring device.

3. In Paragraph 1, The above-mentioned in-ear is configured to be inserted into the interior of the outer ear while worn by the user, and The above microphone is configured to receive, through the in-ear, the reflected sound waves that are reflected by the user's eardrum from the emitted sound waves emitted into the interior of the outer ear through the in-ear. Biosignal monitoring device.

4. In Paragraph 1, The earclip further comprises one end that is coupled to the above-mentioned earset housing, extends longitudinally to correspond to the shape of the earlobe, and is configured to be hooked and coupled to the earlobe when worn by a user. Biosignal monitoring device.

5. In Paragraph 1, The cradle further comprises an insertion groove formed on one surface to allow the in-ear to be inserted therein, and at least a portion of the one surface formed in a shape corresponding to at least a portion of the earset housing. Biosignal monitoring device.

6. In Paragraph 5, A first cable extending longitudinally, having one end coupled to the earset housing and electrically or signal-connected to the speaker or the microphone, and the other end electrically or signal-connected to the cradle; and Further comprising a second cable extending in the longitudinal direction and electrically or signalingly connecting the cradle to an external device, Biosignal monitoring device.

7. In Paragraph 5, The above-mentioned earset housing is equipped with a first magnet, and The cradle is provided with a second magnet that is positioned at a location corresponding to the first magnet while the in-ear is inserted into the insertion groove and generates an attractive force with the first magnet. Biosignal monitoring device.

8. In Paragraph 5, The above cradle is provided with a third magnet arranged to generate a magnetic field toward another surface formed on the opposite side of the above one surface. Biosignal monitoring device.

9. In Paragraph 1, The headset further includes a first ear cup and a second ear cup formed to be wearable by a user on both sides, and configured at both ends to correspond to the left ear and the right ear, respectively, when worn by the user. The above headset is such that the earset housing is detachably attachable to the first ear cup or the second ear cup. Biosignal monitoring device.

10. In Paragraph 9, In the first ear cup or the second ear cup of the headset, a fixing hole is formed that can be fixed with at least a portion of the earset housing inserted inside, and The above-described earset housing is engaged with the first ear cup or the second ear cup with at least a portion inserted into the fixing hole. Biosignal monitoring device.

11. In Paragraph 9, The above headset is: Head part formed by extending to both sides; A first side part slidably coupled to one side of the head part; and It includes a second side part slidably coupled to the other side of the head part, and The first ear cup is rotatably coupled to the first side part, and The second ear cup is rotatably coupled to the second side part. Biosignal monitoring device.

Images