KR101776237B1 - Pad for sensing of snoring and sleep apnea - Google Patents

Pad for sensing of snoring and sleep apnea Download PDF

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Publication number
KR101776237B1
KR101776237B1 KR1020150070735A KR20150070735A KR101776237B1 KR 101776237 B1 KR101776237 B1 KR 101776237B1 KR 1020150070735 A KR1020150070735 A KR 1020150070735A KR 20150070735 A KR20150070735 A KR 20150070735A KR 101776237 B1 KR101776237 B1 KR 101776237B1
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KR
South Korea
Prior art keywords
sleep apnea
snoring
conductive ink
pad
sensor
Prior art date
Application number
KR1020150070735A
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Korean (ko)
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KR20160136758A (en
Inventor
김희진
김성택
김창훈
이형진
이상희
조형주
홍정훈
김영건
최영찬
김규학
Original Assignee
연세대학교 산학협력단
지웰전자 주식회사
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Priority to KR1020150070735A priority Critical patent/KR101776237B1/en
Publication of KR20160136758A publication Critical patent/KR20160136758A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4818—Sleep apnoea
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0826—Detecting or evaluating apnoea events
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body

Abstract

The present invention relates to a snoring and sleep apnea sensing pad comprising a piezo film, a first conductive ink portion formed on the upper surface of the piezo film, a second conductive ink portion formed on a lower surface of the piezo film, And a second coating unit formed on the lower surface of the second conductive ink unit, the sensor unit sensing vibration and noise. The first coating unit is formed on the upper surface of the conductive ink unit, and the second coating unit is formed on the lower surface of the second conductive ink unit.
According to the present invention, since the sensor unit for detecting the sleep apnea state is formed as a film type, the volume of the entire sleep apnea detection apparatus can be drastically reduced, and therefore, the patient can be provided with a chest band equipped with a snoring and sleep apnea detection pad Even when the sleep apnea test is worn for a long time, it is possible to easily achieve the normal sleep state without feeling the frustration and inconvenience as wearing the existing sleep apnea sensor, and the sensor part detecting the vibration and noise generated from the patient By using the piezo film, it is possible to accurately detect the sleep apnea state without being greatly influenced by the ambient temperature change.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a snoring and sleep apnea detection pad,

[0001] The present invention relates to a snoring and sleep apnea sensing pad, and more particularly, to a sensor unit for detecting a sleep apnea state by forming the sensor unit as a film type so that a patient can feel snoring and inconvenience, And a pad for sleep apnea detection.

Sleep apnea is a symptom of respiratory arrest during sleep, which means that sleep apnea is manifested more than 5 times per hour or more than 30 times in 7 hours. It is a modern disease that can be found easily in patients.

These sleep apnea can induce hypertension, arrhythmia, stroke, myocardial infarction due to decrease in concentration, decrease in arterial saturation in arterial blood, and severe cases of heart attack and sudden death during sleep. Recently, sleep apnea Research is continuing to accurately detect and find ways to treat it.

Conventional sleep apnea detection methods include a sleep apnea detection method, a detection method using a CCD camera, a sleep apnea detection method of an external shape, a detection method of detecting a temperature change by respiration, and a chest tube impedance detection method using an ECG electrode. Among them, a sleep apnea detection method and a sensing method for detecting a temperature change due to breathing are widely used. Here, the outer-type sleep apnea detection method has a problem in that the patient's body is sensed for a long time in a state in which the sensor portion of the outer shape is in close contact with the patient, and the patient does not reach a normal sleeping state due to the frustration and inconvenience. In addition, a sensing method for sensing a temperature change due to breathing is a method of sensing a temperature change of the ambient temperature caused by respiration occurring during a process of exhalation through the nose and mouth of a patient using a temperature sensor, thereby detecting a sleep apnea state , The temperature sensor is very sensitive to the temperature change, and there is a high probability that the error occurs in the detection. Therefore, there is a need for a new and progressive sleep apnea sensor capable of accurately detecting the sleep apnea state while allowing the patient to reach a normal sleep state without feeling uncomfortable and uncomfortable.

Korean Patent Publication No. 10-2007-0084901 (2007.08.27)

It is an object of the present invention to provide a snoring and sleep apnea detection pad capable of achieving a normal sleeping state without feeling frustration and uncomfortable even when a patient wears it for a long time.

Another object of the present invention is to provide a snoring and sleep apnea detection pad capable of accurately detecting a sleep apnea state without being greatly affected by changes in ambient temperature.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

According to an embodiment of the present invention, a snoring and sleep apnea sensing pad includes a piezo film, a first conductive ink portion formed on a top surface of the piezo film, a second conductive ink portion formed on a bottom surface of the piezo film, And a second coating part formed on a lower surface of the second conductive ink part, the sensor part sensing vibration and noise, and the power part connected to one end of the sensor part . According to the present invention, since the sensor unit for detecting the sleep apnea state is formed as a film type, the volume of the entire sleep apnea detection apparatus can be drastically reduced. Therefore, the chest band having the snoring and sleep apnea detection pad The present invention can easily achieve a normal sleeping state without feeling the frustration and inconvenience of wearing the existing sleep apnea sensing device even when the sleep apnea test is performed, Since the film is used, it is possible to accurately detect the sleep apnea state without being greatly influenced by the ambient temperature change.

In addition, the snoring and sleep apnea sensing pad may include a high pass filter (HPF) for acquiring an analog signal for vibration and noise sensed by the sensor unit, and an analog signal acquired by the high pass filter, The high-pass filter may have a cut-off frequency of 66 m [Hz].

In addition, the snoring and sleep apnea sensing pad may further include a low pass filter (LPF) between the high pass filter and the A / D converter, wherein the piezoelectric film is made of zirconate titanate (PZT), and specifically, at least one first powder selected from the first group consisting of Fe 2 O 3 , Al 2 O 3 , Cr 2 O 3, and Ga 2 O 3 , Ta 2 O 5 And Nb 2 O 5 and at least one second powder selected from the group consisting of TiO 2 Powder may be pulverized and mixed.

The first and second conductive ink portions may be formed by printing a silver ink electrode on upper and lower surfaces of the piezoelectric film, and the second coating portion may be an insulating film.

The snoring and sleep apnea detection pad may further include at least one fixing part for applying a predetermined tension to the sensor part in a state where the sensor part is mounted on the support part and the sensor part is mounted on the sensor part And the piezo film may have an area of not less than 1/2 but not more than 4/5 of the area of the supporting part, and the fixing part may be formed at both ends of the sensor part.

Finally, the snoring and sleep apnea sensing pads may be installed on the side of the chest band contacting the patient's body, and the snoring and sleep apnea sensing pads may be removable from the chest band .

According to the present invention, since the sensor unit for detecting the sleep apnea state is formed as a film type, the volume of the entire sleep apnea detection apparatus can be drastically reduced. Therefore, when the patient has a chest band having a snoring and sleep apnea detection pad Even when sleep apnea test is applied for a long period of time, it is easy to achieve normal sleep state without feeling the clumsiness and inconvenience of wearing a conventional sleep apnea sensor.

In addition, since the sensor for sensing the vibration and noise generated from the patient uses the piezo film using the piezoelectric effect, the sleep apnea state can be accurately detected without being greatly affected by the ambient temperature change.

The effects of the present invention are not limited to the above-mentioned effects, and various effects can be included within the scope of what is well known to a person skilled in the art from the following description.

1 is a view illustrating a configuration of a snoring and sleep apnea sensing pad according to an embodiment of the present invention.
Fig. 2 is a diagram showing an equivalent circuit model of a piezo film. Fig.
FIG. 3 is a diagram showing an equivalent circuit model in which an oscilloscope is added to the diagram of FIG. 2. FIG.
4 is a diagram showing a high-pass filter.
5 is a view showing a frequency response curve obtained when a vibration and a noise generated from a patient pass through a high pass filter.
6 is a diagram showing a low-pass filter.
7 is a sectional view of the sensor unit.
8 is a view showing a power supply unit connected to the sensor unit.
9 is a view showing a pad for snoring and sleep apnea detection installed on a chest band.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. The embodiments described above are provided so that those skilled in the art can easily understand the technical spirit of the present invention and thus the present invention is not limited thereto and a detailed description of the related known structure or function may be considered to blur the gist of the present invention Detailed description thereof will be omitted.

In the drawings, the same or similar elements are denoted by the same reference numerals, and the same reference numerals are used throughout the drawings to refer to the same or like elements. It should be noted that the elements have the same reference numerals as much as possible even if they are displayed on different drawings.

In addition, the expression " comprising " is intended to merely denote that such elements exist as an 'open expression', and should not be understood as excluding additional elements.

1 is a view showing a configuration of a snoring and sleep apnea sensing pad 100 according to an embodiment of the present invention.

The snoring and sleep apnea detection pad 100 includes a sensor portion 10, a support portion 20, and a fixing portion 30. The patient is subjected to a sleep apnea test that reaches the sleep state with the snoring and sleep apnea sensing pad 100 in close contact with the body part. Hereinafter, the sensor unit 10 will be described.

The sensor unit 10 includes a piezo film 2, a first conductive ink unit 5-1, a second conductive ink unit 5-2, a first coating unit 7-1, (7-2), and detects vibration and noise generated from the patient during the sleep apnea test.

First, the piezo film 2 is formed at the center of the sensor portion. Here, the piezo film (2) is a flexible, light and thin engineering plastic, which can cover a wide frequency band and a pressure range, and can detect vibration and noise generated from a patient and convert it into an analog signal Transducer). Specifically, the pressure applied to the film is converted into a voltage (a piezoelectric effect) in accordance with the vibration and noise generated from the patient, and finally converted into an electric quantity as an analog signal. Its properties are close to that of living tissue in water and have high voltage output, high polarization strength, high mechanical strength and impact resistance, and excellent safety, so that it can be placed close to the patient's body, And is a material well suited for use in sleep apnea sensing devices such as the snoring and sleep apnea sensing pad (100). Such a piezoelectric film 2 can be manufactured using lead zirconate titanate (PZT), and can be produced using materials having excellent piezoelectric effects while being suitable for biocompatibility and environmental problems . Specifically, at least one first powder selected from the group consisting of Fe 2 O 3 , Al 2 O 3 , Cr 2 O 3 and Ga 2 O 3 , Ta 2 O 5 And Nb 2 O 5 and at least one second powder selected from the group consisting of TiO 2 The powders may be pulverized and mixed. For example, after selecting Al 2 O 3 in the first group and Nb 2 O 5 in the second group, the TiO 2 (2) can be mixed with the powder, and Ga 2 O 3 is selected in the first group and Ta 2 O 5 is selected in the second group. TiO 2 And then pulverized with a powder to prepare a mixture of the piezoelectric film (2).

Meanwhile, the manufactured piezoelectric film 2 may be disposed in the vicinity of the patient's body so as to accurately detect the sleep apnea state without any problem, ) Area and not more than 4/5 of the area. For example, the piezoelectric film 2 can be manufactured to have an area of about 41.4 [mm] in the lateral direction and about 16.2 [mm] in the longitudinal direction, The active area will be about 30 [mm] wide and 12 [mm] long. Hereinafter, the active region of the piezo film 2, which is a key component for detecting vibration and noise, will be described.

The output energy of the piezo film 2 increases in proportion to the stress such as the pressure (piezoelectric effect) applied to the film in accordance with the vibration and noise generated from the patient and the activation area of the piezo film 2 is stressed And acts as a capacitance load to accumulate the charge. The capacitance of the piezo film 2 can be expressed by the following equation (1).

[Equation 1]

C =? * A / t [F]

Where C is the capacitance of the piezo film 2,? Is the permittivity of the piezo film 2, A is the area of the active area of the piezo film 2, and t is the thickness of the piezo film 2. In addition, the dielectric constant epsilon of the piezo film 2 can be modified by the following equation (2).

&Quot; (2) "

ε = ε r * ε 0

Where ε r is the relative permittivity of the piezo film (2), and ε 0 is the permittivity in free space.

On the other hand, the capacitance of the piezo film 2 can be explained by an electric equivalent circuit model as shown in Fig. 2, and the dotted line represents the piezo film 2. In this case, the piezo film 2 can be regarded as a kind of voltage generator, and the capacitance C 0 of the piezo film 2 is set to be larger than that of the electrode (the first conductive ink part 5- 1) and the second conductive ink unit 5-2). On the other hand, if an oscilloscope is used to sense V 0 , it can be represented by an equivalent circuit model including the load resistance R L as shown in FIG. In this case, the voltage V L across both ends of the load resistance R L can be expressed by the following equation (3).

&Quot; (3) "

V L = V S * R L / (R L + Z C ), Z C = 1 / (jwC 0 )

Therefore, when the excitation frequency is constant, the voltage can be simply calculated according to Equation (3), and the charge according to the calculated voltage is accumulated in the piezo film 2. All this process is performed in the active region of the piezo film 2.

On the other hand, because of the vibration and noise generated from the patient, it is necessary to use the electric charge accumulated in the piezoelectric film 2 to determine whether the patient is in a sleep apnea state, and therefore, there is a need to convert it into an electrical signal related to frequency. The configuration for performing this is the high pass filter 16, the low pass filter 17, and the A / D converter 18, which will be described below.

Generally, vibration and noise, which can be regarded as sleep apnea, are vibration and noise with a frequency of 60m [HZ] or more. Therefore, by using the electric charge accumulated in the piezo film (2) An analog signal must be acquired. This can be achieved by implementing a high pass filter (HPF) 16 and connecting it to the sensor unit 10 in series. For example, when the high pass filter 16 is implemented as a high pass filter using a load resistance as shown in FIG. 4, a frequency response curve for vibration and noise shown in FIG. 5 can be obtained. Specifically, the frequency response curve shown in FIG. 5 is a frequency response curve obtained when a high pass filter using a load resistance of 1 G [ohm] is implemented, and a cutoff frequency (CF) is 66 m [Hz ] (About -3 [dB]). The high pass filter 16 may implement a high pass filter using various load resistances such as 1T [ohm], 100M [ohm], 10M [ohm], 1M [ohm]

The low pass filter 17 shown in Fig. 6 is additionally implemented between the high pass filter 16 and the A / D converter 18 to be described later, so that the band pass filter BPF , Band Pass Filter) can be derived. Specifically, it is possible to implement the low-pass filter 17 using the OP-AMP, the load resistor and the capacitor, and realize the low-pass filter 17 different from the low-pass filter 17 shown in FIG. 6 to be. In this case, it is preferable that the frequency range of the analog signal with respect to vibration and noise, which can finally be obtained by appropriately adjusting the cut-off frequency of the low-pass filter 17, is a frequency range that can indicate the sleep apnea state. In this case, since the frequency range for respiration of a newborn baby about 6 weeks old is less than about 1 [Hz] and the frequency range for normal respiration of a healthy adult is about 200 [Hz] to 333 m {Hz} 17) should be set within about 10K [Hz], which is an audio frequency band that can include all of them, and it is preferable that the signal separation within the range of 1 [Hz] Do.

The analog signal for the vibration and noise passed through the high pass filter 16 and the low pass filter 17 can be converted into a digital signal through the A / D converter 18, And transmitted to the sleep apnea prevention control system (not shown). Meanwhile, the technical feature of preventing the sleep apnea state of the patient by using the digital signal converted from the snoring and sleep apnea prevention control system is that the technology of the pad 100 for snoring and sleep apnea according to the embodiment of the present invention It is outside the scope of the description, so that it is described in the relevant specification.

As described above, the vibration and noise generated from the patient are accumulated in the piezoelectric film 2 as electric charges, which are implemented as an analog signal indicating the sleep apnea state through the high-pass filter 16 and the low-pass filter 17, And is converted into a digital signal through the A / D converter 18. [ The high-pass filter 16 and the low-pass filter 17 detect vibrations and noises generated from the patient by the piezoelectric film 2 and the analog and digital signals from the vibration and noise sensed by the piezoelectric film 2 to the sleep apnea Signal. All of these processes are based on the piezoelectric effect of the piezo film 2, and unlike the conventional sensing method of sensing the temperature change due to breathing, it is not greatly affected by the ambient temperature change. In addition, since the sensor unit 10 is formed as a film type, the volume of the entire sleep apnea detection apparatus can be drastically reduced. Therefore, even if the patient is worn for a long time and undergoes a sleep apnea test, It is easy to achieve a normal sleep state without feeling inconvenience. Hereinafter, another configuration of the snoring and sleep apnea sensing pad 100 according to an embodiment of the present invention will be described.

Referring to FIG. 7, a cross-sectional view of the sensor unit 10 can be confirmed. The first conductive ink portion 5-1 is formed on the upper surface of the piezoelectric film 2 and the second conductive ink portion 5-2 is formed on the lower surface of the piezoelectric film 2 described above. Here, the first conductive ink portion 5-1 and the second conductive ink portion 5-2 serve as the electrode shown in Fig. 2, and a silver ink electrode having conductivity is connected to the piezoelectric film 2 ) On the upper and lower surfaces of the substrate. The first conductive ink portion 5-1 and the second conductive ink portion 5-2 may be formed using conductive materials different from each other, except for the silver ink electrode. For example, a silver ink electrode may be used for the first conductive ink portion 5-1 and a copper ink electrode may be used for the second conductive ink portion 5-2. A first coating portion 7-1 is formed on the upper surface of the first conductive ink portion 5-1 and a second coating portion 7-2 is formed on the lower surface of the second conductive ink portion 5-2. . Here, the first coating portion 7-1 and the second coating portion 7-2 are formed of the piezoelectric film 2 having the first conductive ink portion 5-1 and the second conductive ink portion 5-2 formed thereon And to protect them. Therefore, the first coating part 7-1 and the second coating part 7-2 can attach a protective film of a predetermined material or can print a coating material, The coating portion 7-2 is formed of an insulating film to prevent damage to the piezoelectric film 2, the first conductive ink portion 5-1, and the second conductive ink portion 5-2 due to electric or thermal energization. . That is, as described above, the sensor unit 10 includes the first coating portion 7-1, the first conductive ink portion 5-1, the piezo film 2, the second conductive ink portion The second coating portion 7-2 and the second coating portion 7-2 are formed only in one embodiment, and the second coating portion 7-2, the second conductive ink portion 5-2, The piezoelectric film 2, the first conductive ink portion 5-1, and the first coating portion 7-1 may be formed. However, in this case, the first coating portion 7-1 should be formed of an insulating film.

On the other hand, power is supplied to one end of the sensor unit 10 through the power cable 12. Here, the power cable 12 may be a wired cable such as a coaxial cable or the like, and any cable may be used as long as it can supply power to the sensor unit 10. Here, the power source plays a role of enabling the piezo film 2 to function as a high-pass filter, and power is supplied to the thin film 2, so that the power cable 12 is supplied to the piezo film 2, And a power supply unit 14 capable of delivering power supplied from the power supply unit. 8, one end of the power supply unit 14 is connected to the power supply cable 12 and the other end thereof is connected to one end of the sensor unit 10, So that the supplied power can be effectively transmitted to the sensor unit 10. It is also preferable that the sensor unit 10 is detachable from the power source unit 14 so that the sensor unit 10 can be replaced only when the sensor unit 10 is damaged. On the other hand, power supply to the sensor unit 10 may be performed not only by a wire method such as the power cable 12, but also by a wireless method. For example, a wireless charging system may be used. In this case, the power supply unit 14 should include a wireless charging antenna (not shown). In order to minimize the influence on the sensor unit 10, You should include more.

The sensor unit 10 as described above is mounted on the support unit 20 shown in FIG. 1 and is mounted on the support unit 20 so that a predetermined tension is applied by the at least one fixing unit 30 . Here, the supporting part 20 should be formed to have an area enough to include all of the sensor part 10, and the part where the sensor part 10 is mounted is preferably formed as a flat surface. The support portion 20 may be manufactured using various materials, but it is preferable that the support portion 20 is made of plastic rather than a metal material in order to minimize the influence on the sensor portion 10 and lighten the weight.

Since the power supply unit 14 connected to one end of the sensor unit 10 can provide tension to the sensor unit 10, it is also possible to form only one fixing unit 30 at the other end of the sensor unit 10 The tension provided by the one fixing portion 30 may be insufficient. Therefore, it is preferable that the fixing portion 30 is formed at both ends of the sensor portion 10 to provide tension from both sides. Referring to FIG. 1, it can be seen that the fixing portions 30 are formed on both ends of the sensor portion 10 one by one. The fixing part 30 may fix the sensor part 10 on the supporting part 20 by binding with the fixing part formed on the supporting part 20. [ Specifically, the sensor unit 10 is mounted on the supporting unit 20, and the fixing unit 30 is formed on both ends of the sensor unit 10 and is coupled to the fixing unit on the supporting unit 20, 10), a tension according to the fixing portion 30 can be naturally provided. It is also preferable that the fixing part 30 is made of the same material as the supporting part 20 so as to facilitate the binding and to induce the uniformity of the entire snoring and the sleep apnea sensing pad 100.

The snoring and sleep apnea sensing pad 100 according to an embodiment of the present invention is subjected to a sleep apnea test while the patient is worn on the body. In this case, the snoring and sleep apnea sensing pad (100) can be worn on any part of the patient's body, but it can be worn on the chest close to the nose, lung and airway, It is preferable to be able to easily detect the vibration generated from the motor. Accordingly, the snoring and sleep apnea sensing pad 100 may be installed on the chest band 40, and specifically, the chest band preferably is provided on the surface of the patient's body. Referring to FIG. 9, it can be seen that the snoring and sleep apnea detection pad 100 is installed in the chest band 40. In this case, the chest band 40 may be attached to the back of the support 20 of the snoring and sleep apnea detection pad 100 through a bonding means such as a double-sided tape or the like to the chest band 40, The snoring and sleep apnea detection band 40 can be detached from the chest band 40. When the sensor unit 10 or the chest band 40 needs to be replaced, Replacement can be facilitated.

[0030] The snoring and sleep apnea sensing pad 100 according to an embodiment of the present invention uses the film-type sensor unit 10 so that the volume of the entire sleep apnea sensing device can be drastically reduced, Even if the chest band 40 equipped with the snoring and sleep apnea sensing pad 100 is worn for a long period of time and is subjected to the sleep apnea test, it is possible to obtain a normal sleep state without feeling the clumsiness and inconvenience of wearing the conventional sleep apnea sensor This can easily be done. In addition, since the sensor unit 10 for sensing the vibration and noise generated from the patient uses the piezoelectric film 2 using the piezoelectric effect, the sleep apnea state can be accurately detected without being greatly affected by the ambient temperature change.

The embodiments of the present invention described above are disclosed for the purpose of illustration, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

100: Snoring and sleep apnea detection pad
2: Piezo film
5-1: first conductive ink part 5-2: second conductive ink part
7-1: first coating part 7-2: second coating part
10: sensor part 12: power cable 14: power part
16: high pass filter 17: low pass filter 18: A / D converter
20: Support
30:
40: Chest band

Claims (13)

Piezo film;
A first conductive ink portion formed on an upper surface of the piezoelectric film;
A second conductive ink portion formed on a bottom surface of the piezoelectric film;
A first coating portion formed on an upper surface of the first conductive ink portion; And
A second coating portion formed on the lower surface of the second conductive ink portion;
And a power unit connected to one end of the sensor unit. The pad for snoring and sleep apnea includes:
A support part on which the sensor part is mounted; And
Further comprising at least one fixing part for applying a predetermined tension to the sensor part when the sensor part is mounted on the supporting part,
Characterized in that the snoring and sleep apnea detection pad is installed on a surface of the chest band which contacts the body of the patient. The snoring and sleep apnea detection pad
The method according to claim 1,
The snoring and sleep apnea sensing pads may include,
A high pass filter (HPF) for acquiring an analog signal of vibration and noise sensed by the sensor unit; And
An A / D converter for converting the analog signal acquired by the high pass filter into a digital signal;
And a sleep apnea detection pad
3. The method of claim 2,
The high-
And the cut-off frequency is 66 m [Hz]. The snoring and sleep apnea detection pad
3. The method of claim 2,
The snoring and sleep apnea sensing pads may include,
Further comprising a low-pass filter (LPF) between the high-pass filter and the A / D converter. The snoop and sleep apnea detection pad
The method according to claim 1,
The above-
Characterized in that it is manufactured by using lead zirconate titanate (PZT). The snoring and sleep apnea detection pad
The method according to claim 1,
The above-
At least one first powder selected from the group consisting of Fe 2 O 3 , Al 2 O 3 , Cr 2 O 3 and Ga 2 O 3 ;
Ta 2 O 5 And at least one second powder selected from the group consisting of Nb 2 O 5 ; And
TiO 2 powder;
Wherein the snoring and sleep apnea detection pad
The method according to claim 1,
The first conductive ink portion and the second conductive ink portion,
Characterized in that a silver ink electrode is printed on the upper and lower surfaces of the piezoelectric film, and a pad for detecting sleep apnea
The method according to claim 1,
Wherein the second coating portion comprises:
Characterized in that the snoring and sleep apnea detection pad
delete The method according to claim 1,
The above-
Wherein the pad has an area of not less than 1/2 but not more than 4/5 of the area of the supporting part. The snoring and sleep apnea detection pad
The method according to claim 1,
The fixing unit includes:
Wherein the pad is formed at both ends of the sensor unit.
delete The method according to claim 1,
The snoring and sleep apnea sensing pads may include,
Characterized in that the snare band is detachable from the band for chest.
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KR101871285B1 (en) * 2017-11-08 2018-06-27 주식회사 엠프로스 Respiratory sensing device and respiratory monitoring system
WO2019093795A1 (en) * 2017-11-08 2019-05-16 주식회사 엠프로스 Respiratory sensing device, respiratory monitoring system including same, and control method thereof
WO2019093796A1 (en) * 2017-11-08 2019-05-16 주식회사 엠프로스 Respiratory sensing device and respiratory monitoring system including same
KR20190052626A (en) * 2017-11-08 2019-05-16 주식회사 엠프로스 Respiratory sensing device and respiratory monitoring system
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