KR101755546B1 - Apparatus and method for measuring interpleural pressure - Google Patents
Apparatus and method for measuring interpleural pressure Download PDFInfo
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- KR101755546B1 KR101755546B1 KR1020150145812A KR20150145812A KR101755546B1 KR 101755546 B1 KR101755546 B1 KR 101755546B1 KR 1020150145812 A KR1020150145812 A KR 1020150145812A KR 20150145812 A KR20150145812 A KR 20150145812A KR 101755546 B1 KR101755546 B1 KR 101755546B1
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
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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
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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- A61B5/7253—Details of waveform analysis characterised by using transforms
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
- A61B5/745—Details of notification to user or communication with user or patient ; user input means using visual displays using a holographic display
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7475—User input or interface means, e.g. keyboard, pointing device, joystick
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
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Abstract
TECHNICAL FIELD The present invention relates to a device for measuring pleural pressure and a method for measuring pleural pressure using the same.
A device for measuring pressure of a pleural fluid according to an embodiment of the present invention includes: a device connection unit for connecting a device to a chest tube; A pressure sensor unit connected to the device connection unit and calculating pressure data; A control unit for generating result data according to the pressure data; And a display unit for displaying the result data, wherein the pressure data is a pressure value inside the chest tube.
According to the present invention, since the measurement of the pressure of the chest tube is non-invasive to the body, there is no problem of pneumothorax and the like in the process of measuring the pressure of the pleural fluid. In addition, the pressure inside the chest tube, which is directly connected to the patient's lung, can be measured to provide an approximate measurement of pleural pressure.
Description
The present invention relates to an apparatus and method for non-invasively measuring the pressure of the pleura, which is a pressure acting in the pleural cavity.
Pleural pressure is the pressure that acts on the lungs to stretch the lungs and enable breathing. Intrapleural pressure is defined as the pleural cavity surrounded by the visceral pleura surrounding the lung and the parietal plerua inside the rib, the mediastinal pleura around the mediastinum, and the diaphragm. ), And is maintained at a negative pressure of -10 cmH2O or less in a steady state. A pleural cavity is a volumetric, non-volatile space in which, with the lungs and ribs touching, a sliding movement is performed with the help of a small amount of pleural fluid. However, when the lungs are in a state of pneumothorax, empyema or hemothorax, air, agitation, or blood may accumulate in the pleural cavity, resulting in a change in pleural pressure.
In addition, if excessive pressure is applied to the pressure corresponding to the pressure of the pleura, spontaneous pneumothorax may occur or the work load may increase during respiration. In particular, if thoracic surgery is performed to remove the lungs, the volume of the lung to fill the thoracic cavity is reduced, and the degree of intrapleural negative pressure increases, resulting in continuous air leakage, dead space, Pneumothorax infection, and empyema may occur.
Therefore, the technique of measuring the pressure of the pleural fluid is necessary for the proper management of the patient after thoracic surgery and it is important to provide a clue to the understanding of the respiratory mechanics of the patient. Therefore, We need skills that can be done.
In the past, we tried to use an invasive method to measure the pleural cavity by inserting a probe. However, when a probe is placed in the pleural cavity of a normal person in a normal state to measure the pressure of the pleural fluid directly, the probe is inserted into the potential space of the bulky pleural cavity which is in contact with the lungs and ribs in a normal state. It could be done.
In addition, indirect methods of measuring pleural pressure through esophageal manometry have been used for a long time. However, because esophageal wall, mediastinal pleura, and blood vessels and connective tissues are located between esophagus and pleura, it is impossible to accurately measure pleural pressure by esophageal pressure. Therefore, there is no way to measure the normal pressure in the pleura.
Therefore, it is possible to measure the pressure inside the chest tube connected directly to the patient's lungs and to provide a non-invasive measurement value close to that of the pleural pressure. It is also possible to measure the pleural pressure of a patient with chest tube, A device for measuring pleural pressure, and a method for measuring the same.
A device for measuring pressure of a pleural fluid according to an embodiment of the present invention includes: a device connection unit for connecting a device to a chest tube; A pressure sensor unit connected to the device connection unit and calculating pressure data; A control unit for generating result data according to the pressure data; And a display unit for displaying the result data, wherein the pressure data is a pressure value inside the chest tube.
In addition, the device connection portion may include an injection needle inserted into the chest tube; And a connection pipe for transferring pressure from the injection needle to the pressure sensor unit.
In addition, the device connection portion may include: a three-way valve disposed between the chest tubes; And a connection pipe connected to one direction of the three-way valve and transmitting pressure from the three-way valve to the pressure sensor part.
According to another aspect of the present invention, there is provided an apparatus for measuring pressure of a pleural fluid, comprising: a device connection unit for connecting a device to a chest tube; A pressure sensor unit connected to the device connection unit and calculating pressure data; And an interface for transmitting the pressure data to the mobile terminal, wherein the mobile terminal processes the pressure data and provides result data.
The apparatus may further include a signal conversion unit for converting the pressure data, which is an analog signal, into a digital signal and transmitting the digital signal to the control unit.
The controller may calculate at least one of a maximum value, a minimum value and an average value of the pressure data accumulated from the initial measurement as the resultant data.
The apparatus may further include a memory for storing the pressure data or the result data.
The apparatus may further include a user input unit operable by a user to set a zero point of the pressure measurement before the device connection unit is connected to the chest tube.
Further, the control unit may calculate the patient condition based on the resultant data.
The apparatus may further include a wireless communication unit for transmitting the measured pressure data or the calculated result data to an external server.
The system may further include an identification information acquisition unit for acquiring patient identification information, wherein the wireless communication unit matches the patient identification information and the result data and transmits the matching result to the external server.
A method for measuring a pressure of a pleural fluid according to another embodiment of the present invention includes a device connecting unit connecting a device to a chest tube, a pressure sensor unit connected to the device connecting unit to calculate pressure data, And a display unit for displaying the resultant data; Connecting the device connection of the device to the chest tube; Measuring the pressure data, the pressure data corresponding to the chest tube pressure; And confirming the result data displayed on the display unit of the apparatus.
A method for measuring a pressure of a pleural fluid according to another embodiment of the present invention includes a device connection unit for connecting a device to a chest tube, a pressure sensor unit connected to the device connection unit to calculate pressure data, Preparing a device for measuring pressure of the pressure of the pleuropneumatic fluid; Connecting the interface of the apparatus to the mobile terminal; Connecting the device connection of the device to the chest tube; Measuring the pressure data, the pressure data corresponding to the chest tube pressure; And confirming the result data displayed on the screen of the mobile terminal.
In addition, when the device connection portion includes a needle, the chest tube connection step may include inserting the injection needle into the chest tube.
In addition, when the device connection part includes a three-way valve and a connection pipe, the chest tube connection step includes: installing the three-way valve between the chest tubes; And connecting the connection pipe to one side of the three-way valve.
According to the present invention as described above, the following various effects are obtained.
First, since the pressure of the chest tube is noninvasive to the body, there is no problem of pneumothorax or the like in the process of measuring the pressure of the pleural fluid.
Second, the pressure inside the chest tube, which is directly connected to the patient's lung, can be measured to provide an approximate measurement of pleural pressure.
Third, it is possible to measure the pleural pressure state of a patient who has a chest tube connected, regardless of the place. In other words, when the patient is not in a good condition (for example, a hospital hall, etc.) and the chest tube is connected to the lungs, the patient's condition may not be good. By using the present invention, You can check and take action.
Fourth, the needle can be inserted into the chest tube, or the three way valve can be connected between the chest tubes, and it can be connected easily when measuring the pressure of the pleural fluid. Thus, it is possible to measure the pleural pressure quickly and easily. In addition, the needle can be replaced with a disposable needle, and since there is no direct contact with the fluid inside the chest tube when using a three-way valve, other patients can be prevented from infecting diseases from previous measurement patients during the pressure measurement.
Fifth, since miniaturization is possible, medical staff can easily carry and utilize when needed.
Sixth, data on the patient's pleural pressure can be accumulated in the server, and big data can be constructed for the patient's state change. It is also possible to predict the patient's condition according to the pleural pressure level.
1 is an internal configuration diagram of an apparatus for measuring pressure of a pleural fluid according to an embodiment of the present invention.
FIG. 2 is a block diagram of an internal structure of a device for measuring pressure of pleural fluid used in connection with a mobile terminal according to an embodiment of the present invention.
3 is a connection diagram of a device for measuring pressure of pleural pressure according to an embodiment of the present invention connected to a chest tube.
FIG. 4 is a flowchart of a method for measuring pressure of pleural fluid using the apparatus for measuring pressure of pleural fluid according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a method of measuring the pressure of the pleura according to an embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.
The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.
In this specification, a mobile terminal refers to a terminal that a user can use while moving. That is, the mobile terminal may be a cellular phone, a personal communication service phone (PCS phone), a mobile terminal of a synchronous / asynchronous IMT-2000 (International Mobile Telecommunication-2000) A portable digital assistant, a personal digital assistant (PDA), a smart phone, a WAP phone (Wireless Application Protocol), a mobile game machine, a tablet PC, . The mobile terminal may be represented as a mobile device.
Hereinafter, a device for measuring pleural pressure according to embodiments of the present invention and a method for measuring pleural pressure using the same will be described with reference to the drawings.
1 is an internal configuration diagram of an apparatus for measuring pressure of a pleural fluid according to an embodiment of the present invention.
Referring to FIG. 1, an
The
Since the
One embodiment of the
The needle can be used as a disposable. That is, the connection tube may include an end shape that can detach and attach the disposable needles. Disposable needles can be used to prevent contaminants from entering the obstruction drainage system of the
Another embodiment of the
The three-way valve is a valve having fluid outlets in three directions, and may be installed or disposed in the middle of the
The
The control unit 130 controls the overall operation of the pressure-
The result data calculated based on the pressure data by the controller 130 may include a maximum value, a minimum value, an average value, and the like. The resultant data may also include real-time measurements. For example, the control unit 130 may perform initialization at the start of measurement, and may calculate at least one of the maximum value, the minimum value, and the average value of the pressure data accumulated from the initial point of the measurement. Then, the control unit 130 may generate data (for example, a text, a graph, and the like) for displaying on the
In addition, the controller 130 may calculate the patient condition based on the resultant data. For example, the control unit 130 may calculate or predict a change in the lung state of the patient using the cumulative resultant data periodically measured.
The
The
The
In addition, an embodiment of the present invention may further include a signal conversion unit. The signal conversion unit may convert pressure data, which is an analog signal, into a digital signal and transmit the digital signal to the controller 130. That is, the signal conversion unit may be an analog-to-digital converter. The signal converting unit may perform a function of converting the pressure data obtained by the analog signal into a digital signal so that the control unit 130 can perform information processing.
Further, an embodiment of the present invention may further include a memory. The memory may store a program for operation of the control unit 130 and may store data input / output (e.g., real-time in-vivo pressure measurements) or data calculated by the controller (e.g., Maximum value, minimum value, average value, etc.). That is, the memory may store the measurement data or the calculation data, and may provide the control unit 130 to generate result data to be provided to the display unit. Further, the memory temporarily stores the measurement data or the calculation data, and can perform and delete the data transmission when the server transmission through the wireless communication is possible.
The memory may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a random access (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM) Or a storage medium of at least one type. The
The wireless Internet module refers to a module for wireless Internet access, and may be built in or enclosed in the device for measuring pressure in the
The short-range communication module is a module for short-range communication. (Bluetooth), BLE (Bluetooth Low Energy), Beacon, RFID (Radio Frequency Identification), NFC (Near Field Communication), Infrared Data Association (IrDA) ZigBee, etc. may be used.
The wireless communication unit transmits the pressure data (that is, the signal itself sensed by the pressure sensor unit 120) or the result data (i.e., the data calculated based on the pressure data in the control unit 130) to the external server or the
When transmitted to the
When the external server receives the result data, the external server can accumulate the pleural pressure data of several patients. That is, the external server can match the patient's state at the time of the corresponding period and analyze the cumulative data to predict the state of the patient based on a specific patient's pleural pressure state.
The apparatus may further include an identification information obtaining unit. The identification information obtaining unit may perform the function of obtaining the patient identification information. For example, the identification information acquiring unit can recognize the barcode recognition module, and can read the barcode held by the patient to recognize the identification information of the patient. The identification information of the patient obtained through the identification information obtaining unit may be matched with the measured pressure of the patient's filtrate pressure data (i.e., result data), and the wireless communication unit may match the patient identification information with the result data, . Thus, the medical staff can distinguish the result data stored in the external server by the patient.
In addition, a power supply unit may be further included. The power supply unit receives external power and internal power under the control of the controller 130, and supplies power necessary for operation of the respective components.
Further, a user input unit may be further included. The user input unit generates input data for controlling the operation of the terminal. The user input unit may include a key pad, a dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with a display unit described later, it can be called a touch screen.
The user input unit can perform various functions. For example, the user input unit may include an operation button, and the change in the pressure of the pleural fluid may be measured for a predetermined time according to the operation of the operation button. A method of ending the measurement without pressing the button again after a predetermined time after pressing the button, or a method of starting the pressurization of the operation button according to the initial operation and terminating the measurement of the pressure of the pleural fluid by the next operation.
Also, for example, the user input unit may include a zero point adjustment button to perform a zero point reset function. That is, the user can operate the zero point adjustment button without connecting the device connection portion to the chest tube to adjust or set the zero point, and the controller 130 controls the current state to the gauge pressure 0 For example, when the user input unit is implemented as a touch screen to provide a text input means such as a keyboard, the user input unit receives the operation of the user and displays identification information of the patient whose pleural pressure is measured Can be input.
FIG. 2 is an internal configuration diagram of a pressure-measuring
Referring to FIG. 2, an
The
The
The
To this end, the apparatus for measuring
The controller 130 may further include a signal converter for converting pressure data, which is an analog signal, into a digital signal and transmitting the digital signal to the controller 130.
The controller 130 may further include a signal converter for converting the pressure data, which is an analog signal, into a digital signal and transmitting the digital signal to the controller 130.
FIG. 4 is a flowchart illustrating a method of measuring the pressure of the pleura according to an embodiment of the present invention.
Referring to FIG. 4, the method for measuring pleural pressure according to another embodiment of the present invention includes a
First, a
The user (i.e., a medical staff) connects the
Pressure data is measured by the device for measuring internal pressure of pleura 100 (S120). The pressure data corresponds to the
FIG. 5 is a flowchart illustrating a method of measuring the pressure of the pleura according to an embodiment of the present invention.
Referring to FIG. 5, the method for measuring pleural pressure according to another embodiment of the present invention includes a
A
Thereafter, the
The user (that is, the medical staff) connects the
The user confirms the result data displayed on the screen of the mobile terminal 300 (S240). That is, the
According to the present invention as described above, the following various effects are obtained.
First, since the pressure of the chest tube is noninvasive to the body, there is no problem of pneumothorax or the like in the process of measuring the pressure of the pleural fluid.
Second, the pressure inside the chest tube, which is directly connected to the patient's lung, can be measured to provide an approximate measurement of pleural pressure.
Third, it is possible to measure the pleural pressure state of a patient who has a chest tube connected, regardless of the place. In other words, when the patient is not in a good condition (for example, a hospital hall, etc.) and the chest tube is connected to the lungs, the patient's condition may not be good. By using the present invention, You can check and take action.
Fourth, the needle can be inserted into the chest tube, or the three way valve can be connected between the chest tubes, and it can be connected easily when measuring the pressure of the pleural fluid. Thus, it is possible to measure the pleural pressure quickly and easily. In addition, the needle can be replaced with a disposable needle, and since there is no direct contact with the fluid inside the chest tube when using a three-way valve, other patients can be prevented from infecting diseases from previous measurement patients during the pressure measurement.
Fifth, since miniaturization is possible, medical staff can easily carry and utilize when needed.
Sixth, data on the patient's pleural pressure can be accumulated in the server, and big data can be constructed for the patient's state change. It is also possible to predict the patient's condition according to the pleural pressure level.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.
100: pleural pressure measuring device 110: device connection part
120: pressure sensor unit 130:
140: display unit 150: interface unit
200: chest tube 300: mobile terminal
Claims (15)
A connection tube connected to the chest tube;
A pressure sensor connected to the connection pipe to calculate pressure data;
A control unit for generating result data according to the pressure data; And
And a display unit for displaying the result data,
Wherein the pressure data is a pressure value inside the chest tube,
The chest tube includes a three-way valve, a first chest tube connected to the first direction of the three-way valve and the lung, and a second chest tube connected to the second direction of the three-
The connection pipe is connected to the third direction of the three-way valve,
Wherein the three-way valve introduces air into the third direction only when the connection pipe is connected.
A connection tube connected to the chest tube;
A pressure sensor connected to the connection pipe to calculate pressure data; And
And an interface unit for transmitting the pressure data to the mobile terminal,
Wherein the mobile terminal processes the pressure data to provide result data,
The chest tube includes a three-way valve, a first chest tube connected to the first direction of the three-way valve and the lung, and a second chest tube connected to the second direction of the three-
The connection pipe is connected to the third direction of the three-way valve,
Wherein the three-way valve introduces air into the third direction only when the connection pipe is connected.
Further comprising: an injection needle inserted into the chest tube;
The connection pipe includes:
Wherein the needle has a structure capable of attaching and detaching the needle,
And transmits the air supplied from the injection needle to the pressure sensor unit.
And a signal converting unit converting the pressure data, which is an analog signal, into a digital signal and transmitting the digital signal to the control unit.
Wherein,
Wherein at least one of a maximum value, a minimum value, and an average value of the pressure data accumulated from the initial measurement is calculated as the resultant data.
And a memory for storing the pressure data or the result data.
Further comprising a user input operable by a user to set a zero point of pressure measurement prior to connecting the connector to the chest tube.
Wherein,
And calculating the patient condition based on the resultant data.
And a wireless communication unit for transmitting the measured pressure data or the calculated result data to an external server.
Wherein the chest tube is a three-way valve, a first chest tube connected to the first direction of the three-way valve and the lung, a second chest tube connected to the second direction of the three- A second chest tube connected to the first chest tube and a third chest tube connected to the connection tube of the pressure device for measuring pleural pressure;
Measuring the pressure data, the pressure data corresponding to chest tube pressure; And
And confirming the result data displayed on the display unit of the apparatus,
Wherein the three-way valve introduces air into the third direction only when the connection tube is connected.
Connecting the interface of the device to the mobile terminal;
Wherein the chest tube is a three-way valve, a first chest tube connected to the first direction of the three-way valve and the lung, a second chest tube connected to the second direction of the three- A second chest tube connected to the first chest tube and a third chest tube connected to the connection tube of the pressure device for measuring pleural pressure;
Measuring the pressure data, the pressure data corresponding to chest tube pressure; And
And confirming the result data displayed on the screen of the mobile terminal,
Wherein the three-way valve introduces air into the third direction only when the connection tube is connected.
When the injection needle is coupled to the coupling tube,
In the chest tube connection step,
Wherein the needle is inserted into the chest tube.
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KR102244866B1 (en) * | 2019-08-21 | 2021-04-26 | 연세대학교 원주산학협력단 | Correction apparatus and correction method for funnel chest |
KR102458412B1 (en) * | 2021-01-15 | 2022-10-25 | 연세대학교 산학협력단 | Device for checking intrathoracic pressure and device for inserting thoracic cavity included therein |
KR20230161047A (en) * | 2022-05-18 | 2023-11-27 | 주식회사 메디케어텍 | Intrapleural pressure control device and method |
KR20240010644A (en) * | 2022-07-15 | 2024-01-24 | 연세대학교 산학협력단 | Chest cavity insertion device and lung disease treatment device having a plurality of them |
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KR100978599B1 (en) | 2010-03-22 | 2010-08-27 | 주식회사 아이베이지디쓰리 | Portable discharging device for body-fluid and control method thereof |
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KR100978599B1 (en) | 2010-03-22 | 2010-08-27 | 주식회사 아이베이지디쓰리 | Portable discharging device for body-fluid and control method thereof |
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