Patents by Inventor Eun Jong Cha
Eun Jong Cha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10251540Abstract: Disclosed are a device and method for fixing and shortening the bowel at the time of endoscopy. The device and method can improve the shortening efficiency of the bowel when compared with the existing endoscope surgery, reduce the inspection time, and mitigate patient inconvenience. Furthermore, an endoscope machine that has been used by an operator can be used, thereby facilitating an operation, and the machine itself need not be separately purchased, thereby obtaining a cost reduction effect. Furthermore, through the application of principles of the device and method, a colonoscopy which is difficult due to the formation of a loop, or retrograde cholangiopancreatography inspection and treatment of a patient having an abnormal anatomical structure due to an operation can be further anticipated.Type: GrantFiled: November 4, 2014Date of Patent: April 9, 2019Inventors: Jae-hong Choi, Eun-jong Cha
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Patent number: 9704133Abstract: A system and a method for objectively evaluating qualitative levels of academic journals in the field of science and engineering are disclosed. The system for evaluating journals includes: a winner or member's paper database which includes information of papers published by a researcher who is awarded a prize or elected to a member of the academy in the field of science and engineering; a journal database which includes information of papers published in journals to be evaluated; a winner or member's paper ratio evaluation section which calculates a winner or member's paper ratio for the journals by using the information of papers of the journal database and the information of papers of the winner or member's paper database; and a journal evaluation section which evaluates a degree of contribution of the journals in awarding the prize or electing to the member of the academy from the winner or member's paper ratio calculated by the winner or member's paper ratio evaluation section.Type: GrantFiled: June 9, 2014Date of Patent: July 11, 2017Assignee: NATIONAL RESEARCH FOUNDATION OF KOREAInventors: Sung-Jong Lee, Kwisun Park, Sang Deog Han, Kyung Woo Lee, Eun-Jong Cha
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Publication number: 20160374592Abstract: A respiratory monitoring system includes: a first sensing tube provided in a respiratory flow tube and provided with at least a first directional hole opened in a respiratory flow direction; a second sensing tube provided with at least a second directional hole corresponding to the first directional hole; a first sensing element configured to detect a first dynamic pressure (PL) using a differential pressure between gas flows from the first and second sensing tubes; a second sensing element configured to detect a second dynamic pressure (PH) using a differential pressure between gas flows from the first and second sensing tubes; and a computation unit configured to compute patient's respiration information including a tidal inspiratory volume and a tidal expiratory volume using the first and second dynamic pressures.Type: ApplicationFiled: June 6, 2016Publication date: December 29, 2016Inventors: In Kwang LEE, Mi Jung PARK, Kyung Ok KIM, Eun Jong CHA, Kyung Ah KIM
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Publication number: 20160198935Abstract: Disclosed are a device and method for fixing and shortening the bowel at the time of endoscopy. The device and method can improve the shortening efficiency of the bowel when compared with the existing endoscope surgery, reduce the inspection time, and mitigate patient inconvenience. Furthermore, an endoscope machine that has been used by an operator can be used, thereby facilitating an operation, and the machine itself need not be separately purchased, thereby obtaining a cost reduction effect. Furthermore, through the application of principles of the device and method, a colonoscopy which is difficult due to the formation of a loop, or retrograde cholangiopancreatography inspection and treatment of a patient having an abnormal anatomical structure due to an operation can be further anticipated.Type: ApplicationFiled: November 4, 2014Publication date: July 14, 2016Inventors: Jae-hong CHOI, Eun-jong CHA
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Patent number: 9351678Abstract: A lancet holder includes a holder body having a lancet seat at one end to mount a lancet and receiving the lancet and elastic fixing portions arranged in pairs to face each other on the inner side of the holder body so that the lancet received in the holder body is vertically held, and elastically fixing the lancet.Type: GrantFiled: September 20, 2011Date of Patent: May 31, 2016Assignee: I-SEN, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Patent number: 9192331Abstract: A releasing structure for a lancing device according to an exemplary embodiment of the present invention may include: a lancet body with a lancet at the front; a lancet holder mounted with the lancet body with the lancet at the front; a stem disposed behind the lancet holder and moving the lancet holder forward/backward; a rotary housing pushing/pulling the stem while turning forward at a predetermined angle about a rotational axis defined in the movement direction of the lancet; a torsion spring storing torque for turning the rotary housing forward at a predetermined angle; and a loading handle transmitting torque to the torsion spring while turning forward at a predetermined angle.Type: GrantFiled: September 20, 2011Date of Patent: November 24, 2015Assignee: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20150193520Abstract: A system and a method for objectively evaluating qualitative levels of academic journals in the field of science and engineering are disclosed. The system for evaluating journals includes: a winner or member's paper database which includes information of papers published by a researcher who is awarded a prize or elected to a member of the academy in the field of science and engineering; a journal database which includes information of papers published in journals to be evaluated; a winner or member's paper ratio evaluation section which calculates a winner or member's paper ratio for the journals by using the information of papers of the journal database and the information of papers of the winner or member's paper database; and a journal evaluation section which evaluates a degree of contribution of the journals in awarding the prize or electing to the member of the academy from the winner or member's paper ratio calculated by the winner or member's paper ratio evaluation section.Type: ApplicationFiled: June 9, 2014Publication date: July 9, 2015Applicant: National Research Foundation of KoreaInventors: Sung-Jong LEE, Kwisun PARK, Sang Deog HAN, Kyung Woo LEE, Eun-Jong CHA
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Publication number: 20130281882Abstract: The present invention relates to a lancet device that can solve the problem of falling or losing a cover when mounting or separating a lancet and reduce the pain that accompanies blood-taking. A lancet device according to an exemplary embodiment of the present invention includes: a lancet holder having a lancet seat to mount a lancet at one end; an operating mechanism disposed at the other end of the lancet holder and loading and releasing the lancet holder along a predetermined path; and an a housing receiving the operating mechanism and having one end coupled to the lancet holder, and further includes a cover that covers the housing so that the lancet holder is received in the housing, is at least partially connected with the housing in order not to separate from the housing in use, and has protrusions on the front part.Type: ApplicationFiled: September 20, 2011Publication date: October 24, 2013Applicant: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20130274781Abstract: A releasing structure for a lancing device according to an exemplary embodiment of the present invention may include: a lancet body with a lancet at the front; a lancet holder mounted with the lancet body with the lancet at the front; a stem disposed behind the lancet holder and moving the lancet holder forward/backward; a rotary housing pushing/pulling the stem while turning forward at a predetermined angle about a rotational axis defined in the movement direction of the lancet; a torsion spring storing torque for turning the rotary housing forward at a predetermined angle; and a loading handle transmitting torque to the torsion spring while turning forward at a predetermined angle.Type: ApplicationFiled: September 20, 2011Publication date: October 17, 2013Applicant: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20130267979Abstract: A lancet device with an adjustable hypodermic penetration depth according to an exemplary embodiment of the present invention includes: a lancet holder having a lancet seat to mount a lancet at one end; an operating mechanism disposed at the other end of the lancet holder and loading and releasing the lancet holder along a predetermined path; a depth adjusting member receiving the lancet holder and having at least two grooves formed at a predetermined angle on the circumferential surface of one end to form inclined passages clockwise or counterclockwise; and a housing receiving the lancet holder and the operating mechanism and having a protrusion that is formed on the inner side of an end and fitted step by step in the grooves when the depth adjusting member turns at a predetermined angle.Type: ApplicationFiled: September 20, 2011Publication date: October 10, 2013Applicant: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20130267977Abstract: The present invention provides a lancet holder that can smoothly and accurately hold all of lancets with different cross-sections and diameters and can keep them vertical, and a lancet device including the lancet holder. To this end, a lancet holder according to an exemplary embodiment of the present invention includes a holder body having a lancet seat at one end to mount a lancet and receiving the lancet and elastic fixing portions arranged in pairs to face each other on the inner side of the holder body so that the lancet received in the holder body is vertically held, and elastically fixing the lancet.Type: ApplicationFiled: September 20, 2011Publication date: October 10, 2013Applicant: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20130267976Abstract: A lancet-separable lancet device according to an exemplary embodiment of the present invention includes: a lancet holder having a lancet seat to mount a lancet at one end and a separation hole at the other end; an operating mechanism disposed at the other end of the lancet holder so that the lancet holder is loaded and released by traveling along a predetermined path; a housing receiving the operating mechanism and having one end coupled to the lancet holder; an operation switch connected to the operating mechanism and operating the operating mechanism by pressing it; a cover covering one end of the housing and having a through-hole at the center through which a lancet needle of the lancet instantaneously protrudes; and a lancet separation mechanism disposed at the other side of the lancet holder and separating the lancet from the lancet holder by being inserted into the separation hole of the lancet holder.Type: ApplicationFiled: September 20, 2011Publication date: October 10, 2013Applicant: I-SENS, INC.Inventors: Geun Sig Cha, Hakhyun Nam, Eun-Jong Cha, Kyung-Ah Kim
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Publication number: 20110270541Abstract: Disclosed is an air flow rate sensor capable of sensing an air flow rate and respirator air flow rate. The air flow rate sensor includes a chamber having left and right portions having same internal diameters and a central portion having an internal diameter greater than the internal diameters of the left and right portions, first and second pressure taps provided at the left and right portions of the chamber, respectively, and a pressure sensor connected to the first and second pressure taps to measure a differential pressure between the left and right portions of the chamber. There are obstacles on the path of air flow, so that exact and uniform measurement characteristics are maintained. Since energy loss is measured by using vortex, the structure of the air flow rate sensor is simplified. The air flow rate sensor is used as a respirator air flow rate sensor.Type: ApplicationFiled: April 21, 2011Publication date: November 3, 2011Inventors: Eun Jong Cha, Kyung Ah Kim, In Kwang Lee, Chan Gi Kim
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Publication number: 20110265576Abstract: Disclosed is a uroflowmeter attachable to a toilet capable of diagnosing a BPH with high reliability and convenience in a sanitary way without the constraints of a space by checking the urinary flow rate of a patient. The uroflowmeter includes a toilet bowl for temporarily storing feces and urine, a connection tube which has one end introduced into water of the toilet bowl, a pressure measuring unit connected with an opposite end of the connection tube to measure pressure inside the toilet bowl, a signal analyzing unit for analyzing pressure signals from the pressure measuring unit to measure a urinary volume signal and a urinary flow rate signal, a display unit for displaying the urinary flow rate signal measured by the signal analyzing unit, and a wireless transceiver unit for making data communication with the signal analyzing unit in a wireless way.Type: ApplicationFiled: April 21, 2011Publication date: November 3, 2011Inventors: Eun Jong Cha, Kyung Ah Kim, Sang Bong Lee, Seong Su Choi
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Patent number: 8048048Abstract: A method and system for measuring a urinary flow rate minimizes impact noise caused by urine to measure the urinary flow rate using a plurality of load cells when prostatic hypertrophy is diagnosed. The method includes measuring an amount of urine collected into a container using a plurality of load cells, extracting and averaging urinary flow rate signals from the measured results, and removing the impact noise from the urinary flow rate signals, converting the urinary flow rate signals into digital signals through an A/D converting circuit, and outputting the digital signals using a personal computer or a microprocessor analyzer which is interfaced with the A/D converting circuit.Type: GrantFiled: December 11, 2008Date of Patent: November 1, 2011Assignee: Chungbuk National University Industry Academic Corporation FoundationInventors: Kyung Ah Kim, Eun Jong Cha, Seong Su Choi
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Patent number: 7975691Abstract: A CPAP device includes an air stream generator for generating positive pressure, a face mask connected to the air stream generator through a flow supply catheter, a pressure sensor measuring pressure in the face mask, a control circuit controlling the air stream generator, and a pressure detection pipe having a first side and a second side. The pressure sensor is connected to the second side of the pressure detection pipe to measure pressure of the detection hole formed at the first side of the pressure detection pipe and outputs the measured pressure value to the control circuit. The control circuit distinguishes average positive pressure from pressure caused by spontaneous breathing of patient according to values of the pressure in the face mask, which are input from the pressure sensor, and controls a speed of the air stream generator such that preset positive pressure is supplied to the patient.Type: GrantFiled: October 23, 2007Date of Patent: July 12, 2011Inventors: Eun Jong Cha, Kyung Ah Kim, Seong Sik Kim, Seung Bum Kang
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Patent number: 7828742Abstract: A method and system is provided for monitoring a respiratory signal by radio. The method includes the steps of: converting a change in electric resistance, which is caused by a change in abdominal circumference measured through a rubber waistband that is made of conductive rubber and is mounted on a lower garment of a testee during respiration, into a voltage signal, performing A/D conversion on the voltage signal, and transmitting the converted digital signal to a short distance by radio using a wireless communication protocol for ZigBee; and receiving the respiratory signal transmitted by radio, transmitting it to a computer unit by wire through an RS-232 port that is a serial communication port, and enabling a tester to monitor the respiratory signal through a screen.Type: GrantFiled: July 19, 2007Date of Patent: November 9, 2010Assignees: Chungbuk National UniversityInventors: In Kwang Lee, Kyung Ah Kim, Eun Jong Cha
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Publication number: 20100249632Abstract: A method and system is provided for monitoring a respiratory signal by radio. The method includes the steps of converting a change in electric resistance, which is caused by a change in abdominal circumference measured through a rubber waistband that is made of conductive rubber and is mounted on a lower garment of a testee during respiration, into a voltage signal, performing A/D conversion on the voltage signal, and transmitting the converted digital signal a short distance by radio using a wireless communication protocol for ZigBee, and receiving the respiratory signal transmitted by radio, transmitting it to a computer unit by wire through an RS-232 port that is a serial communication port, and enabling a tester to monitor the respiratory signal through a screen.Type: ApplicationFiled: March 22, 2010Publication date: September 30, 2010Applicant: Chungbuk National University Industry Academic Cooperation FoundationInventors: In Kwang Lee, Kyung Ah Kim, Eun Jong Cha
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Publication number: 20100152684Abstract: A method and system for measuring a urinary flow rate minimizes impact noise caused by urine to measure the urinary flow rate using a plurality of load cells when prostatic hypertrophy is diagnosed. The method includes measuring an amount of urine collected into a container using a plurality of load cells, extracting and averaging urinary flow rate signals from the measured results, and removing the impact noise from the urinary flow rate signals, converting the urinary flow rate signals into digital signals through an A/D converting circuit, and outputting the digital signals using a personal computer or a microprocessor analyzer which is interfaced with the A/D converting circuit.Type: ApplicationFiled: December 11, 2008Publication date: June 17, 2010Inventors: Kyung Ah Kim, Eun Jong Cha, Seong Su Choi
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Publication number: 20100142773Abstract: A method and system for accurately measuring a very small volume of blood is used for accurate evaluation of an amount (volume) of blood collected by a lancing device, evaluation of a scientific very small amount of blood, and so on. The method includes the steps of collecting the very small volume of blood, absorbing the very small volume of collected blood into an absorption medium, drying the absorption medium, scanning the dried absorption medium using an image scanner connected to a computer to obtain a digital image, and calculating the very small volume of blood from the digital image using an analysis program.Type: ApplicationFiled: December 10, 2008Publication date: June 10, 2010Inventors: Eun Jong Cha, Mi Sook Park, Kyung Ah Kim