The present disclosure relates to a measurement device using one or more EIT electrodes, and more particularly, to a measuring device using one or more EIT (Electrical Impedance Tomography) electrodes, in which one-time use of the electrodes can improve economic feasibility, convenience of use, and measurement accuracy.
Bioimpedance test is a method of examining body composition with values of electrical signal changes (bioimpedance values) by cell membrane and tissue, by injecting microcurrent through electrodes attached to the body and measuring voltages, and is mainly used to examine health conditions inside the body such as muscle, fat, cell, body mass, basic metabolite, in-body moisture, metabolic activity, and bone mineral, plasma etc.
EIT (Electrical Impedance Tomography) is used for performing imagination of physiological functions such as respiration and blood flow by attaching a plurality of electrodes to the body and repeating current injection and voltage measurement, and then restoring the impedance distribution image for the cross section of the body.
In this EIT test, a subject wears a vest or belt-type device equipped with a plurality of EIT electrodes and the voltages of the subject are measured. At this time, since the device provided with the EIT electrodes was used multiple times, there was a risk of bacterial infection, including sweat and body odor of other subjects. In addition, when the device is to be applied to a seriously injured patient, it is difficult to attach a plurality of EIT electrodes to the patient.
Accordingly, various studies that can increase the convenience, reliability, etc. of electrical impedance tomography of a subject using the EIT electrode are steadily being conducted in recent years.
The present disclosure provides a measurement device using one or more EIT electrodes that is economical and has improved measurement convenience by using a disposable electrode unit (replaceable after one (single)-time use).
The present disclosure provides a measurement device using an one or more EIT electrodes that can measure various parts and can change configuration of the electrode unit according to measurement conditions, thereby improving measurement accuracy.
The present disclosure provides a measurement device using one or more EIT electrodes comprising at least one disposable electrode unit configured to support at least one of EIT electrodes to be in close contact with skin; and a sensor unit configured to sense signal measured by the electrode unit to measure electrical impedance image information.
In addition, the electrode unit comprises at least one pad type electrode supporter which supports the at least one of EIT electrodes and is extended to a longitudinal direction so as to be in close contact with skin. Wherein the electrode supporter comprises a electrode line for electrical connection with the EIT electrode.
In addition, at least one end of the electrode supporter can be configured to be connected to the sensor unit to electrically connect the EIT electrode and the sensor unit each other.
In addition, an adhesive medium configured for attaching the electrode supporter to skin is provided on one side of the electrode supporter on which the at least one of EIT electrode is supported. The adhesive medium can be configured to have at least one expose hole through which the at least one of EIT electrodes is exposed to contact skin.
In addition, a plurality of the EIT electrodes are configured to be provided in a sticker type having adhesive strength and are individually attached to skin; and each of the plurality of EIT electrodes can be configured to be connected to the sensor unit through each of the connection lines.
In addition, the electrode unit comprises at least one electrode supporter connectable to the sensor unit and at least one electrode line extending from the electrode supporter to electrically connect the electrode supporter and the at least one EIT electrode, respectively.
In addition, the at least one electrode line can be configured to have different lengths extending from the electrode supporter.
In addition, the at least one EIT electrode is configured to be provided with an indicator on which an identification color or picture is formed, the electrode unit can be configured to be provided with a barcode or a RFID (radio frequency identification) tag for providing information on the EIT electrode.
In addition, at least one sensor unit is configured to be provided, and a plurality of the electrode units can be configured to be provided to be simultaneously connected to the at least one sensor unit.
In addition, the sensor unit is configured to be connected to a reference electrode that is adhered to skin and provide a reference of the electrode potential measured by the electrode unit, and the reference electrode is mounted on the sensor unit, so that the sensor unit can be attached to skin with an adhesive strength of the reference electrode.
In addition, the sensor unit is configured to be connected to a reference electrode that provides a reference of the electrode potential measured by the electrode unit, the sensor unit can be configured to be disposed near the electrode unit and the reference electrode so as to be connected to the reference electrode through an electrode line.
In addition, the plurality of EIT electrodes can be configured to be provided, and any one of the plurality of EIT electrodes can be configured to be provided For reference electrode for providing a reference of the electrode potential measured by the electrode unit, and can be configured to be connected to the sensor unit. EFFECT
In accordance with the present invention having the above configuration, firstly, by replacing the disposable electrode unit after one-time use for the sensor unit, existing problems such as bacterial infection can be improved by one-time use of the electrode unit, and thus the reliability can be improved for the subject.
Secondly, a relatively inexpensive electrode unit is used once at a time, thereby being economical.
Third, the electrode unit can be replaced in response to various measurement conditions, thereby being possible to secure measurement diversity and improve measurement accuracy.
Fourth, a user can easily replace and disconnect the electrode unit from the sensor unit, and thus, the user's convenience is excellent.
Fifth, it is easy to change the attachment position of the electrode unit, so that it is possible to provide various electrical impedance tomography information by sharing a single sensor unit.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the idea of the present invention is not limited to such embodiments, and the idea of the present invention may be differently proposed by adding, changing, and deleting components constituting the embodiments, but these ideas are also included in the scope of the present invention.
Referring to
For reference, the measurement device 1 using EIT electrode described in the present embodiment is shown and described as being attached to the subject's skin S (see
The electrode unit 10 comprises at least one EIT electrode 11 capable of being in close contact with skin S. As shown in
As shown in
The electrode supporter 13 supports at least one EIT electrode 11, extends in the longitudinal direction, and has a thin band shape so as to be in close contact with skin S. In addition, one EIT electrode 11 or a plurality of EIT electrodes 11 are provided on the electrode supporter 13 to be spaced apart from each other, and an electrode line 14 for electrical connection with the EIT electrode 11 can be formed on the electrode supporter 13.
For reference, it is possible to improve the quality of measurement data in the EIT tomography method by embedding the electrode line 14 in the electrode supporter 13 supporting the EIT electrode 11 so that the electronic circuit is located near the EIT electrode 11.
On the other hand, at least one electrode supporter 13 is provided and connected to the sensor unit 20 attached to skin S of the subject, and then is separated from the sensor unit 20 and discarded after use.
In addition, an indicator 12 for user identification is provided in the plurality of EIT electrodes 11. The indicator 12 can be formed of an identifiable image (picture) or color so as to indicate the position to which the EIT electrode 11 is applied or the position of the embedded built-in EIT electrode 11. Although the indicator 12 is illustrated as being provided in plurality corresponding to each of the plurality of EIT electrodes 11, it can be provided to only some of the plurality of EIT electrodes 11.
In the present embodiment, a plurality of EIT electrodes 11 are supported on a single electrode supporter 13, and the EIT electrodes 11 can be distinguished from a first electrode region 1 la attached to the front side of the subject and a second electrode region 11b attached to the rear side of the subject. Although the first and second electrode regions 11a and 11b are provided by four in each, and totally eight EIT electrodes are exemplified to be supported by the electrode supporter 13, it is understood that the number of the EIT electrodes 11 is not limited as shown in
The electrode supporter 13 shown in
On the other hand, as shown in
As described above, the EIT electrodes 11 of the first and second electrode regions 11a and 11b provide identifications to the user by the identifiers 12 having at least more than two colors and pictures, and the colors and pictures of the indicators 12 can be variously changed as shown in
In addition, the electrode supporter 13 can be provided as a sticker having a self-adhesive strength or a pad which can be closely attached to skin S. In the present embodiment, as shown in
The adhesive medium 16 has a band shape extending in the longitudinal direction to correspond to the electrode supporter 13 and forms exposure holes 16a for exposing each of the EIT electrodes 11 supported on the electrode supporter 13 to the outside. In addition, as shown in (c) of
As described above, in the electrode unit 10, a plurality of EIT electrodes 11 are supported on the electrode supporter 13, the plurality of EIT electrodes 11 are exposed through the exposure holes 16a of the adhesive medium 16 and are protected by the protective film 17. Thereinafter, when attached to the subject's skin S, the protective film 17 is separated and removed from the adhesive medium 16 and is in close contact with skin S, in the state that the plurality of EIT electrodes 11 are supported in the electrode supporter 13 by the adhesive strength of the adhesive medium 16.
Meanwhile, although not shown in detail, the electrode unit 10 can be provided with a barcode or RFID (Radio Frequency Identification) tag capable of providing each of information, for example, whether genuine or not, a measurement part, a measurement target, and the like. The barcode or RFID tag of the electrode unit 10 can provide information through electrical signal exchange with an external electronic device.
The sensor unit 20 is selectively connected to the electrode unit 10 to sense a signal measured from the connected electrode unit 10 to measure a body composition such as pulmonary respiration and cardiac output of a subject. As shown in
The sensor 21 senses a signal received from the electrode unit 10. Such a sensor 21 senses the pulmonary respiration and cardiac output of a subject by injecting current into a pair of the EIT electrodes 11 of the electrode unit (10) and measuring the impedance from the other the EIT electrodes 11 excepting for the pair of EIT electrodes 11.
The sensor connector 22 interconnects the external electronic device and the sensor 21 by electrically connecting to the connection port 23 provided on the sensor 21. The sensor connector 22 is provided with a connection port 25 for signal exchange with an electronic device (M) (see
On the other hand, an insertion hole 24 to which the inserter 15 of the electrode unit 10 is inserted and connected is provided at both sides of the sensor 21. At this time, it is shown and illustrated as an example that the electrode unit 10 is connected to the sensor unit 20 by coupling the inserter 15 shown in
The sensor unit 20 comprises an adhesive medium having an adhesive strength and can be connected to the electrode unit 10 after being attached to skin S of the subject. In the present embodiment, it is shown and illustrated as an example that a reference electrode 26 is provided in the sensor unit 20 for providing a reference of the electrode potential measured by the electrode unit 10, and the sensor 21 is attached to skin S by the adhesive strength of the reference electrode 26.
That is, in the present embodiment, the sensor unit 20 is attached to skin S using the adhesive strength of the reference electrode 26. When attached to skin S using the reference electrode 26, the sensor 21 of the sensor unit 20 is provided with a first snap 27, and the reference electrode 26 is provided with a second snap 28 corresponding to the first snap 27 so that the reference electrode 26 is mounted on the sensor 21 by the mutual combination of the first and second snaps 27 and 28. It should be understood that the coupling method of the sensor 21 and the reference electrode 26 is not limited to the above illustrated example.
In addition, although
When the sensor unit 20 does not use the adhesive strength of the reference electrode 26, the sensor unit 20 can be provided on an attachment surface attached to skin S with an adhesive strength such as double-sided tape, so that the sensor unit 20 can be attached to skin S. For reference, it is possible to modify the example that sensor unit 20 is provided with a separate adhesive medium along with the adhesive strength of the reference electrode 26, thereby being doubly attached to skin S. Also, it is apparent that the sensor unit 20 is not attached to skin S and is placed near the subject so that the sensor unit 20 is connected to the electrode unit 10.
An electrical impedance tomography operation of the measurement device 1 using EIT electrode according to the present invention having the above configuration will be described with reference to
First, as shown in (a) of
In a state where the sensor unit 20 is placed on the subject's skin S, the electrode unit 10 is connected to the sensor unit 20. More specifically, the electrode supporters 13 supporting the eight EIT electrodes 11 shown in
In this case, the user identifies the plurality of EIT electrodes 11 by the image(picture) or color of the identifier 12 and connects the electrode unit 10 to the sensor unit 20. More specifically, the user attaches the first electrode region (or area) 11a on the front side of the subject and locates the second electrode region 11b on the rear side of the subject, and then the user connects the electrode unit 10 to the sensor unit 20.
For reference, in the electrode unit 10, the electrode supporter 13 is attached to skin S by the adhesive strength of the adhesive medium 16 from which the protective film 17 is separated, and the EIT electrodes 11 exposed through the exposure holes 16a of the adhesive medium 16 are in direct contact with skin S, so that current is injected to skin S through the EIT electrodes 11.
The electrode unit 10 is connected to the sensor unit 20 in this way, and then the electrode unit 10 can pass microcurrent into the body of the subject and the sensor unit 20 senses changes in electrical signals to measure biometric information such as pulmonary respiration and cardiac output of the subject. Such measured information is provided through an external line L to an external device M such as a monitor provided externally or the like.
On the other hand, when the measurement is completed, the electrode unit 10 is separated from the sensor unit 20 and discarded, so that the electrode unit 10 is just used once (i.e., disposable). Thereafter, when it is desired to measure the subject's pulmonary respiration and cardiac output again, a new electrode unit 10 is connected to the previously attached sensor unit 20 to measure the body composition, and then the electrode unit 10 is separated from the sensor unit 20 again and discarded. As described above, since only the electrode unit 10, which is relatively inexpensive compared to the sensor unit 20, is discarded after being used once, it is economical and has excellent applicability to various measurement conditions without bacterial infection.
Referring to
The measurement device 100 using EIT electrode according to the second embodiment comprises an electrode unit 110 and a sensor unit 120. Here, since the configuration of the sensor unit 120 is similar to that described in the first embodiment with references to
In the electrode unit 110 according to the second embodiment, as shown in
In addition, the electrode supporters 113 have adhesive strength and are attached to skin S of the subject, so that the electrode unit 110 applies current to the subject in a kind of sticker electrode manner. For reference, the number of electrode unit 110 attached to the subject is not limited to the illustrated example.
A plurality of electrode units 110 such as stickers can be attached to the subject's skin S and can be simultaneously connected to a single sensor unit 120 through a connection line 119. At this time, the single sensor unit 120 is provided and connected to the plurality of electrode units 110 through the connection line 119 in a state in which the plurality of electrode units 110 are attached to the subject's skin S.
The sensor unit 120 senses an electric signal change value provided from the plurality of electrode units 110 and provides the measured electrical impedance tomography information to the external device M.
When the measurement of biometric information such as pulmonary respiration and cardiac output is completed by connecting the electrode unit 110 and the sensor unit 120, the plurality of electrode units 110 are separated from the sensor unit 120 and discarded.
Meanwhile, although the sensor unit 120 is not shown in detail, the sensor unit 120 can be connected to a reference electrode (not shown) and can be attached to skin S by sharing the adhesive strength of the reference electrode in the same manner as in the first embodiment. However, the sensor unit 120 can be connected to a reference electrode (not shown) using a separate lead line, and the reference electrode can be attached to skin S and the sensor unit 120 can be placed in an unattached state at a position connectable to the electrode unit 110.
Referring to
In
As such, the electrode supporters 113a, 113b, 113c, and 113d shown in
For reference, as shown in
As shown in
The electrode unit 210 having such a configuration according to the third embodiment of the present invention is provided in a sticker type in which each of the plurality of EIT electrodes 211 has self-adhesive strength. Thus, compared to the band-shaped electrode supporters 113 described above, the positions of the EIT electrodes 211 can be adjusted relatively freely with respect to the electrode supporter 212 as shown in
For reference, the sticker type electrode unit 210 according to the third embodiment is also connected to the sensor unit to be used once, separated from the sensor unit, and then discarded.
Referring to
For reference, since the configuration of the sensor unit (see
The electrode unit 310 according to the fourth embodiment comprises a plurality of EIT electrodes 311 and an electrode supporter 312 supporting the plurality of EIT electrodes 311, and a connector 314 for electrical connection with the sensor unit (see
According to the fourth embodiment, a plurality of EIT electrodes 311 can be provided in a sticker type so as to be attachable to skin S of the subject and can be attached to skin S of the subject.
For reference, as described in the fourth embodiment, the EIT electrodes 311 can be elliptical shape extending in the longitudinal direction, unlike the aforementioned circular shaped EIT electrodes. The shapes of the EIT electrode 311 are not limited to the first to fourth embodiments and can be provided in various shapes suitable for measurement conditions, such as a circle, an ellipse, and a polygon.
As described above, all the electrode units 10, 110, 210, and 310 shown in the first to fourth embodiments are provided so as to be able to variously change the position where they are attached to the subject, and the number of EIT electrodes 11, 111, 211, and 311 can also be changed according to the measurement conditions of the subject. Accordingly, it is possible to measure various body composition information as well as pulmonary respiration and cardiac output of the subject through electrical impedance tomography. In addition, since the electrode units 10, 110, and 210 are connected to the sensor units 20 and 120 and used once at a time, then separated and discarded, existing problems such as bacterial infection can also be improved.
As described above, although described with reference to the preferred embodiment of the present invention, it will be understood by 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 present invention as set forth in the claims below.
Number | Date | Country | Kind |
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10-2019-0020522 | Feb 2019 | KR | national |
Filing Document | Filing Date | Country | Kind |
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PCT/KR2020/002014 | 2/13/2020 | WO | 00 |