Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A one-way air flow valve includes one-way inspiration and expiration valve assemblies which have a same structure, are connected to each other in parallel, and are arranged opposite to each other, so that valve plates provided in the one-way inspiration and expiration valve assemblies, respectively, are open in directions opposite to each other, and a connection part including a mouthpiece provided at one side of the inspiration and expiration valve assemblies to allow an examinee to inhale or exhale air. One end of the inspiration valve assembly is connected with a gas tank, one end of the expiration valve assembly is connected with a gas density analyzer, and the inspiration and expiration valve assemblies include a valve and suction and discharging tubes coupled with one side and an opposite side of the valve, respectively.

Abstract: A probe for an electric stimulator having a variable vaginal electrode constantly maintains the contact resistance by adjusting the diameter of the electrode corresponding to the user. Electrodes are provided on front and rear parts of a body of the probe, respectively. The electrodes are provided in a circular arrangement such that the electrodes move up and down. A rotating handle is formed at a side of the body such that the handle rotates at the side of the body. A shaft coupled to the handle rotates when the handle rotates, so a cam plate coupled to the shaft rotates, and the rotated cam plate pushes the electrodes, thereby expanding or reducing a diameter of the electrodes.

Abstract: The object of this invention is to provide a safe lancet disposer which prevents a lancet, having been used for blood collection, from being reused, thus preventing secondary infection and cross infection. The safe lancet disposer (100) of the present invention includes a cutting unit (110) which cuts an end of a needle of a lancet, a receiving unit (140) which is disposed under the cutting unit (110) to receive therein the cut end of the needle, and an operating unit (170) which is rotatably mounted to the receiving unit (140) and operates the cutting unit (110). The cutting unit (110) has an insertion plate (112), a support plate (118) and a cutting plate (128). The receiving unit (140) has a receiving housing (142) and a receiving container (160). The operating unit (170) has an operating lever (172).

Abstract: Disclosed herein is a vacuum assisted auto-lancing device. The device includes a housing (200) having a body (210) which has a lever hole. An actuating lever (300) includes an actuating switch (310) seated on the lever hole and having first and second actuating steps, a switch cap (320), and a switch cover (330). The device also includes a holding unit (400) having a first stem (410), a second stem (430), and a stem cap (450). A trigger (500) has a first trigger unit activated by the first actuating step, and a second trigger unit activated by the second actuating step. A lancet holder (524) holding a lancet (522) is secured to an end of the first trigger unit. The device includes a blood collecting unit (600) having an adjusting screw, an adjusting slider, and an end cap, and a vacuum unit (700) having a plunger and a body cap.

Abstract: A down-sized single directional respiratory air flow measuring tube is provided that is suitable for an electronic respiratory air flow measuring device such that the patients perform a self-test. The measuring tube includes: a cylindrical pipe including an inlet making contact with a mouth of an examinee and an outlet facing the inlet, in which the cylindrical pipe includes disposable material; and a detection rod positioned near the outlet, expanding out of a lower portion of the cylindrical pipe while passing through the cylindrical pipe from an upper portion of the cylindrical pipe, and formed with a closed upper portion, in which the detection rod has a plurality of sampling holes to measure dynamic pressure of a respiratory air flow at the first side of the inlet of the cylindrical pipe such that air flow between the center portion and a wall surface of the cylindrical pipe is measured.

Abstract: 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.

Abstract: Disclosed are a method and an apparatus capable of efficiently and precisely measuring a urinary flow rate by using a general purpose pressure sensor with a low price, instead of a conventional expensive weight sensor, even without a conventional funnel. According to the method and the apparatus, water pressure of urine accumulated in a vessel is transferred to an external pressure sensor through a pressure transfer pipe, the received water pressure is converted into electrical signals through the pressure sensor, the electrical signals are amplified through a bridge amplifier, the amplified analog signals into digital signals (water pressure signals), the water pressure signals are converted into volume signals through an interface with an analyzer, and urinary flow rate signals are acquired by differentiating the volume signals, in which the electrical signals are voltage signals corresponding to volume signals. An apparatus capable of measuring a urinary flow rate.

Abstract: 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.

Abstract: Disclosed herein is a peak expiratory flow meter capable of measuring continuous expiratory flow. The peak expiratory flow meter includes a lower casing unit (110), an air expansion unit (130) and an upper casing unit (150). The lower casing unit (110) includes a first body (112) having an open top and open opposite sides and having a first end in which a first expiratory flow entrance (114) is formed, a plurality of rails (118), and a movable plate (122). The air expansion unit (130) includes a pressure transfer tube (132), an elastic plate (136), and a pressure spring (140). The upper casing unit (150) includes a second body (152) adapted to define the air expansion unit and provided with a first end in which a second expiratory flow entrance (154) is formed, and a measurement slot (156), and a scale indicator (160) having a “T” shape.

Abstract: Disclosed herein is a method of measuring an absolute lung volume. In the method, concentrations of oxygen and carbon dioxide gases are measured and analyzed in respiratory gas, consisting of nitrogen (N2), oxygen (O2), and carbon dioxide (CO2), to indirectly measure a concentration of nitrogen, thereby achieving measurement of absolute lung volume, such as a functional residual capacity.

Abstract: A pressure-dependent automatic leak valve for sphygmomanometers is able to regularly reduce the pressure in a cuff without manipulation of a pressure reducing valve. Fluid resistance of air to be discharged through the pressure-dependent automatic leak valve is automatically changed so that air is discharged at a constant rate, and the pressure in the cuff is reduced at a constant speed.