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NIHON KOHDEN CORPORATION

NIHON KOHDEN CORPORATION Patent applications
Patent application numberTitlePublished
20130137948Signal Processing Method, Signal Processing Apparatus, and Pulse Photometer Using the Same - A method of processing first and second signals obtained by measuring a medium, to obtain a pulse wave signal and an artifact signal which are separated, includes: separating vectors of the first and second signals by using a separation matrix into a vector of the pulse wave signal and a vector of the artifact signal, the separation matrix including a norm ratio of a stable zone of the pulse wave signal and a compensated norm ratio of an artifact zone.05-30-2013
20130067988Gas Measuring Apparatus - A gas measuring apparatus including: a measurement unit which obtains a measurement value with respect to a predetermined parameter of a gas to be measured; an altitude acquisition unit which acquires altitude information indicating an altitude of an installation location; an air pressure calculation unit which calculates an air pressure in the installation location, based on the altitude information; and a correction unit which corrects the measurement value based on a calculation value of the air pressure.03-21-2013
20130066177BIOLOGICAL SIGNAL MEASURING APPARATUS - The calculation amount of the whole can be reduced. A biological signal measuring apparatus includes a biological signal measuring unit which measures a biological signal; and a calculation processing unit which performs calculation processes on the measured biological signal, wherein the calculation processing unit has: a first calculation processing unit which performs calculation processes required for calculating the biological signal, and which is independently controllable; and a second calculation processing unit which performs a specific calculation process, and which is independently controllable, and, when the first calculation processing unit satisfies given conditions, the second calculation processing unit is caused to perform the specific calculation process.03-14-2013
20130053933PAIN SENSORY NERVE STIMULATION APPARATUS - A pain sensory nerve stimulation apparatus includes: a stimulation electrode which is adapted to be attached to a living body, at least one of an exogenous algesic substance and pyrogen which is to be interposed between the living body and the stimulation electrode; and a stimulation power supplier which is configured to supply electric power to the stimulation electrode.02-28-2013
20130053710BLOOD PRESSURE MEASURING CUFF - A blood pressure measuring cuff 02-28-2013
20130028813Cell Isolation Instrument - A cell isolation instrument includes: a first container which has an opening in an upper portion; a filtration member which defines at least a part of a lower portion of the first container; an isolation member which is movably housed in the first container to collide with a tissue, thereby isolating cells; and a second container which houses the first container in a manner that the first container can be taken out.01-31-2013
20130017426Battery Holding DeviceAANM Yahagi; HiroakiAACI TokyoAACO JPAAGP Yahagi; Hiroaki Tokyo JPAANM Sato; TakanoriAACI TokyoAACO JPAAGP Sato; Takanori Tokyo JP - A battery holding device includes: a battery housing portion which is adapted to house a battery; and a conductive terminal which is disposed in a sidewall portion of the battery housing portion, and which is to be in contact with an electrode terminal of the battery. The sidewall portion of the battery housing portion is formed with: a first cutout that is formed along a first direction; and a second cutout that is formed along a second direction different from the first direction and that communicates with the first direction.01-17-2013
20130017129PIPETTE MEMBER AND CELL ISOLATION INSTRUMENTAANM Shioyama; TakahiroAACI TokyoAACO JPAAGP Shioyama; Takahiro Tokyo JPAANM Suzuki; AkaneAACI TokyoAACO JPAAGP Suzuki; Akane Tokyo JP - A pipette member to be attachable to a container capable of accommodating a tissue and a liquid, is used for isolating cells from the tissue by stirring, and includes: a cylinder member which includes a first opening that is to be accommodated in the container, and a second opening that is to be connected to a cell isolation apparatus, and in which a passage for communicating the first opening with the second opening is defined; and a filter member which is disposed inside the cylinder member, and which separates the passage into a first part that includes the first opening, and a second part that includes the second opening.01-17-2013
20120330161CO2 SENSOR AND CO2 MEASURING APPARATUS12-27-2012
20120289856SYMPATHETIC SKIN RESPONSE MEASURING APPARATUS - A sympathetic skin response measuring apparatus includes: a stimulation power supplying section configured to supply a power for stimulating only C fibers in a living body, to a stimulation electrode adapted to be applied to the living body; a measuring section configured to measure information of a sympathetic skin response based on a signal obtained from a measurement electrode adapted to be applied to the living body; and an outputting section configured to output the information measured by the measuring section.11-15-2012
20120285458WATER TRAPPING APPARATUS - A water trapping apparatus includes: a respiratory gas contacting portion that is disposed in a flow path through which a respiratory gas flows, and that is adapted to be in contact with the respiratory gas, the respiratory gas contacting portion that is comprised of a porous body; and an ambient-air contacting portion that is formed integrally with the respiratory gas contacting portion, and that is adapted to be in contact with ambient air, the ambient-air contacting portion that is comprised of the porous body.11-15-2012
20120283591RESPIRATORY WAVEFORM ANALYZER - A respiratory waveform analyzer, operable to analyze a respiratory waveform, which is generated based on a temporal change of a concentration of a component in respiratory gas of a subject, includes: a respiratory gas concentration generator which generates a concentration signal based on an output signal from a sensor that is placed to measure the concentration of the component; a flatness calculator which calculates a flatness indicative of flat degree of the respiratory waveform based on a temporal change of the concentration signal; and a reliability calculator which calculates a reliability of the respiratory waveform based on the flatness and the concentration signal.11-08-2012
20120265040BIOLOGICAL INFORMATION MONITORING APPARATUS AND BIOLOGICAL INFORMATION MONITORING METHOD - A biological information monitoring apparatus includes: an acquiring section configured to acquire biological information of a patient; a storage section configured to store a threshold which is changed with time from a first time; and a determining section configured to compare the biological information acquired by the acquiring section with a threshold corresponding to a second time when the biological information is acquired by the acquiring section, to perform determination of an abnormality of an living body of the patient.10-18-2012
20120253213TWA MEASURING ELECTROCARDIOGRAPH, TWA MEASURING METHOD, AND TWA MEASUREMENT SYSTEM - A TWA measuring electrocardiograph includes: a transformation coefficient storing section configured to store a transformation coefficient for deriving a Frank's vector electrocardiogram; an electrocardiograph controlling section configured to produce a scalar electrocardiogram from electrocardiographic signals of measurement electrodes adapted to be attached to a subject, and configured to derive the Frank's vector electrocardiogram from the scalar electrocardiogram by using the transformation coefficient; and a TWA measuring section configured to measure a presence of TWA based on the derived Frank's vector electrocardiogram.10-04-2012
20120253209VENOUS PRESSURE MEASUREMENT APPARATUS - A non-invasive venous pressure measurement apparatus is provided, including: a first cuff attached to a portion including a vein and an artery in a living body; a pressure control unit that changes a first applied pressure applied by the cuff to the portion; a pulse wave detection unit that detects a pulse wave from a pressure received by the cuff from the portion; another pulse wave detection unit that detects another pulse wave including at least an arterial pulse wave in another portion of the living body; an analyzing unit that analyzes a correlation between the two pulse waves, which are changed as the applied pressure is changed by the pressure control unit changes; and a venous pressure calculation unit that calculates a venous pressure based on the applied pressure and a result of analysis by the analyzing unit.10-04-2012
20120252110CELL CULTURE APPARATUS - A cell culture apparatus includes: an isolator in which a sterile space accommodating a cell incubator filled with a culture solution containing cells to be cultured is disposed; a sampling unit configured to sample the culture solution in the cell incubator; a delivery flow path through which an inside of the sterile space and an outside of the sterile space communicate with each other, the delivery flow path configured to limit a flow in the delivery flow path to a direction that is directed from the inside of the sterile space toward the outside of the sterile space; and a culture solution delivering section configured to deliver the sampled culture solution to the outside of the sterile space via the delivery flow path.10-04-2012
20120249332ALARM INFORMATION PROCESSING APPARATUS AND ALARM INFORMATION PROCESSING PROGRAM - An information processing apparatus and program having a reading unit configured to read a plurality of alarm information about alarms generated based on abnormalities of biological information of a patient or abnormalities of a medical apparatus, and a control unit configured to associate same alarm contents that are included in the different alarm information in terms of the alarm contents that indicate contents of abnormalities causing the generation of the alarms is provided.10-04-2012
20120245442CARDIOPULMONARY RESUSCITATION MONITORING APPARATUS - A cardiopulmonary resuscitation monitoring apparatus includes: a detecting unit configured to obtain a detection signal of a timing of chest compression during execution of cardiopulmonary resuscitation; a pulse oximeter configured to detect a change of a blood volume at the timing of the chest compression based on the detection signal, and configured to obtain an oxygen saturation from the change of the blood volume; an evaluating unit configured to perform evaluation related to the cardiopulmonary resuscitation based on the oxygen saturation; and an outputting unit configured to perform an outputting operation in accordance with a result of the evaluation.09-27-2012
20120238847PROBE - A probe includes: light emitting and receiving sections; an attachment band including a first surface facing the living tissue and a second surface opposite to the first surface, a part of the first surface in which one of a hook portion and a loop portion is provided, a part of the second surface in which the other is provided, the attachment band to be wrapped around the living tissue to engage the hook and loop portions with each other; and a compressible member attached to the first surface, being in contact with the living tissue when the attachment band is attached to the living tissue, the compressible member which is larger in width than the attachment band and ends of which extend beyond ends of the attachment band.09-20-2012
20120232365CARDIOPULMONARY RESUSCITATION MONITORING APPARATUS - A cardiopulmonary resuscitation monitoring apparatus includes: a light source section configured to cause light, which includes at least infrared light, to be incident on a living body; a light receiving unit configured to receive at least one of transmitted light that is transmitted through the living body and reflected light that is reflected from the living body; a calculating unit, based on DC components of received light intensities of the received light, configured to calculate a ratio of the DC components of the received light intensities of the received light during execution of cardiopulmonary resuscitation; an evaluating unit configured to perform evaluation related to the cardiopulmonary resuscitation based on the ratio calculated by the calculating unit; and an outputting unit configured to perform an output in accordance with a result of the evaluation performed by the evaluating unit.09-13-2012
20120220900CARDIOPULMONARY RESUSCITATION MONITORING APPARATUS - A monitoring apparatus for cardiopulmonary resuscitation includes: an information acquiring section configured to acquire information of a force, displacement, and velocity during a compression of a chest of a living body; a calculating section configured to calculate viscoelasticity information of the chest based on the information of the force, displacement, and velocity, which are acquired by the information acquiring section; an evaluating section configured to perform evaluation related to the cardiopulmonary resuscitation by using the viscoelasticity information which is calculated by the calculating section; and an outputting section configured to perform an output showing the evaluation which is performed by the evaluating section.08-30-2012
20120214250METHOD AND APPARATUS FOR MEASURING PH OF SOLUTION - A method of measuring a pH of a solution includes: emitting light beams of two wavelengths from one side of a measuring region of a solution into which an indicator is mixed, while pulsating the solution in the measuring region; receiving at least one of transmitted light beams and reflected light beams of the emitted light beams on the other side of the measuring region, while pulsating the solution in the measuring region; obtaining absorbances of the two wavelengths based on the received at least one of the transmitted light beams and the reflected light beams; obtaining an absorbance ratio from the obtained absorbances ; and calculating a pH value of the solution based on the obtained absorbance ratio and an absorbance ratio/pH value correspondence database which is previously stored.08-23-2012
20120214225CELL INCUBATOR AND INCUBATION CONDITION MONITORING SYSTEM - A cell incubator includes: a culture cell accommodating section which accommodates cells to be cultured and a culture solution; and an RFID tag which is attached to the culture cell accommodating section and which is configured to transmit predetermined information to a communicating apparatus in response to reception of a signal that is wirelessly transmitted from the communicating apparatus.08-23-2012
20120208293NOVEL METHOD FOR TESTING VASCULAR ENDOTHELIAL DAMAGE AND TESTING KIT - An object of the present invention is to provide a method which is capable of carrying out detection and evaluation of the vascular endothelial damage with a high degree of accuracy. According to an aspect of the present invention, there is provided a method for testing vascular endothelial damage with respect to a blood sample collected from living organism comprising the steps of: 1) detecting or determining quantitatively vascular endothelial cell-derived microparticle; and 2) detecting or determining quantitatively tissue factor-containing microparticle. Furthermore, according to another aspect of the present invention, there is provided a testing kit of vascular endothelial damage comprising a first antibody which specifically recognizes the vascular endothelium-derived microparticle, and a second antibody which specifically recognizes the tissue factor-containing microparticle.08-16-2012
20120186328LIQUID SEPARATOR AND APPARATUS FOR MEASURING A RESPIRATORY GAS - A liquid separator includes: a housing including: a first part including a first chamber; a second part including a second chamber; an inflow port into which a respiratory gas flows; a process chamber configured to perform a trapping process to trap liquid from the respiratory gas; and an outflow port from which the processed respiratory gas is discharged; a filter which is disposed in the process chamber interposed between the inflow port and the outflow port, and which partitions the process chamber into the first chamber on a side of the inflow port and the second chamber on a side of the outflow port; and a heating unit configured to heat at least one of the second part, the filter, and a vicinity of the filter.07-26-2012
20120146619Blood Measuring Apparatus - A blood measuring apparatus includes: a first chamber which includes a first wall provided with an aperture and in which diluted blood is contained; a second chamber which includes the first wall, a second wall opposed to the first wall and a peripheral wall and in which diluting solution is contained, the first and second chambers communicating with each other through the aperture; first and second electrodes which are disposed in the first and second chambers, respectively; a measuring unit which performs a blood measurement by causing a current to flow between the first and second electrodes; a diluting solution supplying unit which supplies diluting solution along a part of the peripheral wall which is adjacent to a peripheral edge of the first wall; and a sucking unit which sucks the diluting solution from the second wall.06-14-2012
20120145536Blood Measuring Apparatus - A blood measuring apparatus includes: first and second chambers which communicate with each other through an aperture; first and second electrodes which are disposed respectively in the first chamber and the second chamber; and a controller: which performs blood measurement by causing a current to flow between the first and second electrodes in a state where diluted blood is contained in the first chamber and diluting solution is contained in the second chamber; and which performs electrolysis by applying a voltage between the first and second electrodes in a state where diluting solution is contained in the first and second chambers, thereby producing washing solution, and which performs washing on at least the aperture, and the first and second chambers by using the produced washing solution.06-14-2012
20120136228METHOD OF INFORMING SENSOR MOUNTING TIME PERIOD AND APPARATUS FOR INFORMING SENSOR MOUNTING TIME PERIOD - The sensor mounting time period informing apparatus is provided with the detecting part, the timer part, the discriminating part, and the informing part. The detecting part detects whether or not the sensor is mounted on the living body for measuring biological information. The timer part counts the elapsed time period during which the sensor is continuously mounted on the living body based on the detection results of the detecting part. The discriminating part discriminates whether or not the elapsed time has reached the specified standard time. The informing part issues a notification when the elapsed time has reached the standard time based on the discrimination result of the discriminating part.05-31-2012
20120130211Biological Signal Measuring Apparatus and Biological Signal Measuring Method - A biological signal measuring apparatus includes: a light emitter which emits at least two light beams having different wavelengths to living tissue of a subject; a light receiver which receives the light beams that are emitted from the light emitter, and which converts at least one of the light beams to at least one electric signal that corresponds to a reception light intensity of the at least one of the light beams; a detector which detects temporal variation of the reception light intensity from the electric signal; a selector which selects a pulse oximeter mode in which at least one of an oxygen saturation and a pulse rate is calculated and a capillary refilling time measurement mode in which a capillary refilling time is calculated; and a calculator which, based on the temporal variation of the reception light intensity, performs a calculation in the mode that is selected by the selector.05-24-2012
20120089044BIOLOGICAL SIGNAL DISPLAY APPARATUS - A biological signal display apparatus includes: a stimulation unit which performs stimulation on a living body; a measurement unit which measures an evoked response evoked by the stimulation; a calculator which calculates a feature amount of the evoked response; a display unit; and a display controller which, based on the feature amount calculated by the calculator, displays a bar-shaped image on the display unit, each time when the stimulation is performed, the bar-shaped image corresponding with the evoked response on the display unit.04-12-2012
20120068855MEDICAL TELEMETRY SYSTEM AND MEDICAL TELEMETER - A medical telemetry system includes: a medical telemeter including: a measuring portion which measures a biological signal of a patient as biological signal data; a communicating portion which wirelessly transmits the biological signal data; and a connection information storing portion which stores connection information; and a receiver including: a non-contact communicating portion which executes first non-contact communication to read the connection information in a non-contact manner; a storage portion which stores the connection information read by the non-contact communicating portion; and a receiving portion which starts reception of the biological signal data transmitted by the communicating portion, when the connection information is stored in the storage portion.03-22-2012
20120065477MEDICAL TELEMETRY SYSTEM AND MEDICAL TELEMETER - A medical telemetry system include: a transmitter which transmits a first signal; a first medical telemeter which transmits a second signal including biological information of a patient, the first medical telemeter which receives the first signal and which performs an operation corresponding to information included in the first signal; and a monitor apparatus which receives the second signal.03-15-2012
20120046561BLOOD PRESSURE MEASURING APPARATUS - A blood pressure measuring apparatus, which measures a blood pressure of a living body, includes: a cuff-pressure control unit which controls a cuff pressure of a cuff that presses a part of the living body; an oscillation signal detection unit which detects an oscillation signal from the cuff pressure; a blood pressure specification unit which specifies systolic and diastolic blood pressures as the blood pressure of the living body from the oscillation signal; and a blood pressure determination unit which determines whether systolic and diastolic blood pressures are appropriate or not. The cuff-pressure control unit controls the cuff pressure to be inflated to a first set value, the blood pressure specification unit specifies the systolic and diastolic blood pressures based on a change of an oscillation signal that is detected by the oscillation signal detection unit when the cuff pressure is inflated to the first set value, and when the blood pressure determination unit determines that both the systolic and diastolic blood pressures are appropriate, the cuff-pressure control unit ends the inflating of the cuff pressure to release the cuff pressure.02-23-2012
20120029371DERIVED ELECTROCARDIOGRAM GENERATING SYSTEM AND DERIVED ELECTROCARDIOGRAM GENERATING METHOD - A derived electrocardiogram generating system includes: a personal coefficient database which stores personal coefficients specific to a subject, the personal coefficients being acquired from the subject; a population coefficient database which stores population coefficients which are average values of conversion coefficients acquired from an unspecified large number of persons belonging to a statistically significant population; and an electrocardiograph control portion: which generates a derived electrocardiogram of the subject using the personal coefficients when the personal coefficients are present in the personal coefficient database; and which generates a derived electrocardiogram of the subject using the population coefficients when the personal coefficients are absent in the personal coefficient database.02-02-2012
20110288423BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD - A blood pressure measuring apparatus which measures a blood pressure in a step of gradually changing a cuff pressure adapted to press an artery, includes: a pulse wave detecting unit; a pulse wave interval measuring unit; a waveform information storing unit; a change trend calculating unit; a waveform information comparing unit; and a determining unit which, when first two of the pulse waves, which are successively detected at different cuff pressures, satisfy a predetermined condition: that a magnitude relationship between the amplitudes of the first two of the pulse waves is consistent with the change trend of the first two of the pulse waves; that the pulse wave interval between the first two of the pulse waves is within a predetermined range; and that the waveform information of the first two of the pulse waves approximately coincide with each other, determines that the amplitude of latter one of the first two of the pulse waves is to be used for calculating the blood pressure value.11-24-2011
20110230066CONNECTOR, CARD EDGE CONNECTOR, AND SENSOR USING THE SAME - A connector includes: a card edge connector; a first cable drawn out from the card edge connector in a first direction; a first terminal disposed in the card edge connector and connected to the first cable; a receptacle into and from which the card edge connector is inserted and extracted; a second cable drawn out from the receptacle in a second direction; and a second terminal disposed in the receptacle and connected to the second cable. Insertion/extraction directions of the card edge connector are substantially perpendicular to at least one of the first direction and the second direction. The card edge connector includes a first end face which is substantially parallel to the insertion/extraction directions, and the receptacle includes a first wall face which is substantially parallel to the insertion/extraction directions. In a state where the card edge connector and the receptacle are coupled to each other, the first end face and the first wall face are in contact with each other.09-22-2011
20110214971ELECTRONIC APPARATUS - An electronic apparatus includes: an apparatus body which can house a battery; a lid member which is coupled to the apparatus body; an operating portion which is moved between an ON position where a power source supplied from the battery is turned ON, and an OFF position where the power source is turned OFF; and a unit which, when the operating portion is not at a position which is one of the ON position and the OFF position, moves the operating portion to the position and holds the operating portion at the position in accordance with removal or coupling of the lid member from or to the apparatus body.09-08-2011
20110209703ARTIFICIAL VENTILATION APPARATUS - An artificial ventilation apparatus includes: a connecting portion which is connected to a respiratory system of a patient; an inspiratory circuit which is a flow path for flowing a gas from a ventilator to the connecting portion; an expiratory circuit which is a flow path for guiding a gas exhausted from the connecting portion to an exhaust portion of the ventilator; an expiratory valve which blocks a flow of a gas from the exhaust portion toward the connecting portion; a carbon dioxide concentration sensor which is disposed in a circuit that is provided at a downstream side of the expiratory valve and which detects a carbon dioxide concentration; and an alarm outputting unit which outputs an alarm based on an output of the carbon dioxide concentration sensor.09-01-2011
20110205031REMOTE MAINTENANCE SYSTEM AND RELAY UNIT - A remote maintenance system includes: a medical device which includes: a first power source; a first power source controller which controls an ON/OFF operation of the first power source; a checker which checks a check item; and a first communicator which transmits first information including a result of a check by the checker; and a relay unit which includes: a second power source; a second power source controller which automatically controls an ON/OFF operation of the second power source; and a second communicator which communicates with the first communicator and which receives the first information from the first communicator.08-25-2011
20110196256PAIN SENSORY NERVE STIMULATION APPARATUS - A pain sensory nerve stimulation apparatus includes: an electrode portion including: a first electrode, a tip end of which is adapted to be inserted into a skin; and at lease one second electrode which is disposed in a circumference of the first electrode without being electrically conductive with the first electrode, and which is adapted to be in contact with a skin; and a stimulation signal supplying unit, supplying a bipolar stimulation signal between the first electrode and the second electrode, the bipolar stimulation signal including a first waveform signal and a second waveform, the first waveform which is convex in a negative direction in the first electrode, the second waveform signal which is convex in a positive direction in the first electrode.08-11-2011
20110184255PORTABLE BIOLOGICAL SIGNAL MEASUREMENT / TRANSMISSION SYSTEM - A portable biological signal measurement/transmission system includes: a body unit; and at least one biological signal processing unit detachably connected to the body unit, and including a signal processor which processes a biological signal, the biological signal processing unit including a first transmitter which transmits the biological signal to the body unit when the biological signal processing unit is connected to the body unit.07-28-2011
20110181427GAS ANALYZER - A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.07-28-2011
20110151446CELL TREATMENT SOLUTION AND METHOD OF PREPARING STAINED CELL SUSPENSION FOR A MEASUREMENT OF NUCLEAR DNA BY FLOW CYTOMETRY - A cell treatment solution and a method that is used for preparing a stained cell suspension that is provided to a measurement of nuclear DNA by flow cytometry. The cell treatment solution may include a surfactant, RNase, and a fluorescent dye. The surfactant may include, for example, a non-ionic surfactant, a zwitterionic surfactant, an anionic surfactant, and/or a cationic surfactant. In one method of the invention, stained cell suspension that is provided to a measurement of nuclear DNA by flow cytometry is prepared. The method may include adding a tissue sample to a cell treatment solution including a surfactant, RNase, and fluorescent dye, disaggregating the tissue sample, and filtering the disaggregated tissue sample. Another method of the invention includes disaggregating a tissue sample, preparing cell suspension by filtering the disaggregated tissue sample, and adding a cell treatment solution including a surfactant, RNase, and fluorescent dye.06-23-2011
20110125034VESSEL WALL MONITORING APPARATUS - A vessel wall monitoring apparatus includes: a first detecting unit which detects vessel diameter information based on first biological information obtained from a subject; a first producing unit which differentiates the vessel diameter information detected by the first detecting unit, to produce a vessel diameter function; a second detecting unit which detects blood pressure based on second biological information obtained from the subject; a second producing unit which performs a logarithmic operation on the blood pressure detected by the second detecting unit, to produce a logarithmic blood pressure function; and an outputting unit which produces an impedance model expression by using the vessel diameter function, the logarithmic blood pressure function, and mechanical characteristic values including a stiffness, viscosity, and inertia, and which calculates and outputs at least one of the stiffness, the viscosity, and the inertia based on the impedance model expression.05-26-2011
20110098540BIOLOGICAL PARAMETER DISPLAYING APPARATUS - A biological parameter displaying apparatus includes: a coordinate displaying unit which displays first coordinates in which a first biological parameter of a patient, which is measured by a first measuring unit, is set as an X-axis, and a second biological parameter of the patient, which is different in kind from the first biological parameter and which is measured by a second measuring unit, is set as a Y-axis; a plot data producing unit which produces first plot data, each of the first plot data being produced based on first measurement values of the first and second biological parameters which are measured at a same time or in a same time zone; and a plot displaying unit which plots the first plot data in the first coordinates.04-28-2011
20110094513OXYGEN MASK - An oxygen mask comprises an oxygen supply unit and an attachment unit which is to be attached to a periphery of a nose or a nose and a mouth of a patient. The attachment unit includes an opening which communicates with external air and which is formed at a position to which, when the oxygen mask is attached to the patient, at least one of the nose and the mouth of the patient is opposed.04-28-2011
20110080294BIOLOGICAL INFORMATION MONITORING APPARATUS AND ALARM CONTROL METHOD - A biological information monitoring apparatus operable to measure biological information of a patient by detecting a biological signal of the patient, and operable to output an alarm, includes an alarm controller which changes the alarm. The alarm includes a first alarm of a first priority and a second alarm of a second priority. When a first condition is satisfied, the first alarm is output. When a second condition is satisfied after the first alarm is output, the alarm controller changes from the first alarm to the second alarm to be output.04-07-2011
20110080293BIOLOGICAL INFORMATION MONITORING APPARATUS - A biological information monitoring apparatus operable to receive biological information measured by a detector adapted to be attached to a patient, and operable to display the biological information on a display, includes: a first display controller which displays an alarm on the display; and a second display controller which displays, on the display, first information which responses to the displayed alarm.04-07-2011
20110069588BIOLOGICAL INFORMATION MONITOR HAVING FUNCTION OF DISPLAYING TEMPORARY ROOM LEAVING TIMER - A biological information monitor which receives, directly or via an network, biological information of a patient which is measured by a unit attached to the patient, includes: a display portion on which the biological information is displayed; and a controlling portion which displays, on the display portion, at least one of a reason of temporary room leaving accompanied by stoppage of measurement of the biological information of the patient, a period for leaving a room, a scheduled time for restarting the measurement, and present progress information.03-24-2011
20110066048APPARATUS FOR EVALUATING VASCULAR ENDOTHELIAL FUNCTION - An apparatus for evaluating a vascular endothelial function, includes: a first cuff, to be wound around a first body part of a subject; a second cuff, to be wound around a second body part of the subject; a cuff pressure controller, configured to control a cuff pressure of each of the first and second cuffs, and configured to perform continuous pressure stimulation on the first body part of the subject for a time period by using the first cuff; a cuff pressure detector, configured to detect the cuff pressure of the second cuff from an output of a pressure sensor connected to the second cuff; a pulse wave detector, configured to detect, from the output of the pressure sensor, pulse waves before and after the continuous pressure stimulation is performed; and an analyzer, configured to evaluate the vascular endothelial function by comparing the pulse waves detected before and after the continuous pressure stimulation is performed.03-17-2011
20110060714BIOLOGICAL SIGNAL PROCESSING APPARATUS AND MEDICAL APPARATUS CONTROLLING METHOD - A biological signal processing apparatus includes: a provider which provides state probability which corresponds to a value of a first biological signal; an acquirer which acquires a first biological signal in time series from a living body and which acquires state probability in time series which corresponds to a value of the acquired first biological signal from the provider; and a determiner which acquires determination probability based on the state probability acquired by the acquirer and which performs determination whether a process is performed or not by using the determination probability.03-10-2011
20110060531BLOOD VOLUME MEASURING METHOD AND BLOOD VOLUME MEASURING APPARATUS - A blood volume measuring method includes: acquiring data of stroke volume variation at each respiratory rate, and storing the acquired data in a first buffer; reading an N1 number of the data stored in the first buffer, from the first buffer, and storing the N1 number of the data in a second buffer; excluding a part of the data stored in the second buffer, a value of each of which exceeds a first upper limit or falls below a first lower limit, from the data stored in the second buffer, and storing the other of the data stored in the second buffer, in a third buffer; acquiring a deviation of each of the data stored in the third buffer, from a median value of the data stored in the third buffer, excluding a part of the data stored in the third buffer, the deviation of each of which exceeds a second upper limit or falls below a second lower limit, from the data stored in the third buffer, and storing the other of the data stored in the third buffer, in a fourth buffer; determining whether N2/N1 is within an allowable value or not, wherein the N2 is a number of the data stored in the fourth buffer; and when it is determined that the N2/N1 is within the allowable value, calculating data of average stroke volume variation based on the data stored in the fourth buffer.03-10-2011
20110054328BIOLOGICAL INFORMATION MONITOR - A biological information monitor includes: a first measuring unit which measures a pulse wave propagation time of a patient; a second measuring unit which measures a blood pressure of the patient; a calculating unit which calculates an estimated blood pressure value of the patient based on the pulse wave propagation time of the patient; a setting unit which sets a threshold; and a determining unit which compares the estimated blood pressure value with the threshold. The second measuring unit is activated to measure the blood pressure of the patient at least one of at time intervals and at a time when an operator operates the second measuring unit, and the second measuring unit is activated to measure the blood pressure of the patient by the determining unit based on the comparison result.03-03-2011
20110046462BLOOD OXYGEN SATURATION MEASURING APPARATUS - A blood oxygen saturation measuring apparatus includes: a light emitter adapted to emit, to living tissue of a subject, at least two light beams which have different wavelengths from each other; a light receiver adapted to receive the light beams which are transmitted through or reflected from the living tissue, the light receiver which converts the received light beams to electric signals corresponding to receiving intensities of the light beams, respectively; an extractor which extracts frequency components corresponding to changes of the receiving intensities according to a variation of a blood volume of a vein in the living tissue due to respiration of the subject, from the electric signals, respectively; an attenuation ratio calculator which calculates a first attenuation ratio based on amplitudes of the extracted frequency components; and an oxygen saturation calculator which calculates a first blood oxygen saturation in the vein based on the first attenuation ratio.02-24-2011
20110043366BIOLOGICAL INFORMATION MONITORING SYSTEM - A biological information monitoring system includes: an alarm generator which generates an alarm signal indicative of an abnormality of biological information of a patient, or an abnormality of a unit related to monitoring of biological information of a patient, or an abnormality due to an operation of a unit related to monitoring of biological information of a patient; a first output generator which performs a first output based on the alarm signal; a detector which detects information related to the first output; a second output generator which performs a second output being independent from the first output; and a warning controller which controls the second output generator to perform the second output based on the detected information related to the first output.02-24-2011
20110028858GAS FLOW SYSTEM, ADAPTOR, AND METHOD - An airway adaptor that measures the concentration of at least one of a specific component and the flow rate of a supply gas and a return gas. The airway adapter may include a tube having a flow path in which the supply gas and the return gas passes. The tube may include a first end having a first aperture for guiding the supply gas into the flow path, and second end having a second aperture for guiding the return gas. Further, the airway adapter may include a measurement device operable to measure at least one of the supply gas and the return gas in the air flow path and a partial shielding disposed at the first aperture and structured to shield a portion of the air flow path. The supply gas may be a respiratory gas and the return gas may be inhaled or exhaled breath of a person.02-03-2011
20110015534AIRWAY ADAPTOR - An airway adaptor includes: an airway case; and an expired gas guiding portion which is connected to the airway case to introduce a respiratory gas to the airway case. The airway case includes: a first respiratory gas flow path in which the respiratory gas flows in a first direction; and a second respiratory gas flow path in which the respiratory gas flows in a second direction opposite to the first direction.01-20-2011
20110009936INTERNAL PADDLE ELECTRODE - An internal paddle electrode includes: an electrode which is to be in contact with a living body to apply a voltage; a cable which includes a voltage supply path that extends between a voltage supply source and the electrode; a handle which includes: a first portion that supports the electrode and is hermetically sealed with the electrode; and a second portion that is connected to the cable and is hermetically sealed with the cable; and a gas passage through which a gas in the handle communicates with external air that is outside the handle.01-13-2011
20100317987BITE BLOCK - A bite block includes: a first wall defining a hole into which a conduit pipe is to be inserted; a second wall surrounding the first wall to define a flow path with the first wall; and a sample port communicating with the flow path.12-16-2010
20100317932RESPIRATORY FUNCTION MEASURING APPARATUS - A respiratory function measuring apparatus includes: a first sensor configured to detect an invasive blood pressure; a second sensor configured to measure frequency of at least one of a heart beat and a respiration; and a controller configured to extract a respiratory function signal from the invasive blood pressure detected by the first sensor, by using at least one of the frequency measured by the second sensor and a harmonic of the frequency.12-16-2010
20100268518APPARATUS FOR MEASURING BLOOD VOLUME AND METHOD OF EVALUATING RESULT OF MEASUREMENT BY APPARATUS FOR MEASURING BLOOD VOLUME - An apparatus for measuring a blood volume, includes: a first calculator which calculates a first blood volume by using information on a cardiac output of a subject; and a second calculator which calculates a second blood volume by using information on oxygen metabolism of the subject.10-21-2010
20100268101METHOD AND APPARATUS FOR MEASURING BLOOD VOLUME - A method of measuring a blood volume, includes: reading individual specific information of a patient; estimating oxygen metabolism relating to a cardiac output of the patient; and acquiring the cardiac output based on the estimated oxygen metabolism.10-21-2010
20100249631RESPIRATORY WAVEFORM ANALYZER - A respiratory waveform analyzer, operable to analyze a respiratory waveform, which is generated based on a temporal change of a concentration of a component in respiratory gas of a subject, includes: a respiratory gas concentration generator which generates a concentration signal based on an output signal from a sensor that is placed to measure the concentration of the component; a flatness calculator which calculates a flatness indicative of flat degree of the respiratory waveform based on a temporal change of the concentration signal; and a reliability calculator which calculates a reliability of the respiratory waveform based on the flatness and the concentration signal.09-30-2010
20100222650BIOLOGICAL SIGNAL MEASURING APPARATUS - A biological signal measuring apparatus includes: a pressure sensor which measures a pressure in a living body; a respiratory sensor which measures respiratory information; and an outputting unit which detects an end-tidal based on the respiratory information measured by the respiratory sensor and which outputs a pressure value based on the pressure measured by the pressure sensor when detecting the end-tidal.09-02-2010
20100145211GAS FLOW SYSTEM, METER, AND METHOD - A system, flow meter, and method for measuring gas flow information, such as respiratory information. In an exemplary embodiment, the flow meter may include a cylindrical body that allows the respiratory gas to flow through and at least one hot wire disposed within the cylindrical body. Further, the flow meter may include a bridge circuit that includes the at least one hot wire as a resistive element and an extraction circuit that extracts a signal from the bridge circuit indicating the respiratory volume. A first filter and second filter may be disposed at an output side of the extraction circuit, and a detection circuit may be included that detects the respiratory flow rate from the output signal of the first filter and detects sound, such as snoring from the output signal of the second filter.06-10-2010
20100119130BIOLOGICAL SIGNAL DRAWING APPARATUS AND BIOLOGICAL SIGNAL DRAWING METHOD - A biological signal drawing apparatus draws biological signals as drawing points in time series. The biological signal drawing apparatus includes: a thinner performing a thinning process to thin a first number of the drawing points corresponding to the biological signals sampled in each pixel zone, to obtain a second number of the drawing points for each pixel zone, the second number being smaller than the first number; a calculator, after the thinning process is performed, calculating a parameter based on at least one difference of values of adjacent two of the drawing points included in a group that includes: a first drawing point being a center in time series in the group and having a first value; and at least one second drawing point preceding or succeeding the first drawing point in time series and having a second value; and a processor performing a process of: performing a weighted moving average calculation using the first value, the second value and the calculated parameter, to obtain a third value; and replacing the first value with the third value.05-13-2010
20100094378PAIN SENSORY NERVE STIMULATION APPARATUS - A pain sensory nerve stimulation apparatus includes: an electrode portion including: a first electrode, a tip end of which is adapted to be inserted into a skin; and at lease one second electrode which is disposed in a circumference of the first electrode without being electrically conductive with the first electrode, and which is adapted to be in contact with a skin; and a pulse signal supplier, supplying a pulse signal in which an electrical polarity of the first electrode is set as a anode and an electrical polarity of the second electrode is set as a cathode.04-15-2010
20100070011DISPOSABLE ELECTRODE AND AUTOMATIC INFORMATION RECOGNITION APPARATUS - A disposable electrode includes: an electrode pad; and a connector, connecting the electrode pad to a defibrillator, and including an information holder that can be provided with a transmissive opening or a light reflective member, the information holder holding information about at least an expiration date, depending on presence or absence of the transmissive opening or the light reflective member, the information holder allowing the information to be notified from the defibrillator when the connector is connected to the defibrillator.03-18-2010
20090326338METHOD AND APPARATUS FOR ANALYZING GAS COMPONENT DERIVED FROM LIVING BODY AND DISEASE DETERMINATION SUPPORTING APPARATUS - A method of analyzing a gas component derived from living body, includes: extracting a first gas component from a gas contained in an atmosphere by a first method and removing the extracted first gas component from the gas to defecate the atmosphere; obtaining a mixed gas of the defecated atmosphere and a second gas component from a subject; extracting the first gas component from the mixed gas by a second method; and analyzing the first gas component extracted from the mixed gas. The second method is the same as the first method.12-31-2009
20090318819PULSE PHOTOMETRY PROBE - A pulse photometry probe includes: a light emitter having a first face from which light is emitted toward a living body; a light receiver having a second face which receives the light from the living body; a surface sheet which faces the first face of the light emitter and the second face of the light receiver; a cover sheet in which at least one slit is formed, the light emitter and the light receiver which are disposed between the surface sheet and the cover sheet; and a lead wire which includes: a first lead wire connected to one of the light emitter and the light receiver; a second lead wire connected to the other one of the light emitter and the light receiver; and a basal portion at which the first lead wire and the second lead wire are bundled. The second lead wire includes at least one slack portion between the basal portion and the other one of the light emitter and the light receiver.12-24-2009
20090318787PULSE OXIMETRY AND PULSE OXIMETER - A pulse oximetry includes: irradiating living tissue with a plurality of light beams of different wavelengths; receiving the light beams transmitted through or reflected from the living tissue and converting the received light beams to electric signals which correspond to the different wavelengths; time-segmenting time series data of the electric signals; calculating, with respect to each of the segmented time series data of the electric signals, a slope value of a regression line between each two of the electric signals; calculating SaO2 based on the slope value of each of the segmented time series data of the electric signals; constructing a histogram of SaO2 for each predetermined number of time segments; and obtaining a mode value from the histogram as SpO2 to be output of the pulse oximetry.12-24-2009
20090299208FLOW MEASUREMENT SYSTEM AND BIOLOGICAL INFORMATION MONITOR - A flow measurement system includes: a respiration monitoring apparatus which measures a flow of a gas flowing through a flow path, to output a measurement value; and a gas monitoring apparatus which samples the gas to measure at least one of a concentration of a component of the gas and a component of the gas and to generate information on the flow of the sampled gas. The measurement value is corrected based on the information.12-03-2009
20090287075BIOLOGICAL SIGNAL MEASUREMENT SENSOR - A biological signal measurement sensor is to be fixed to a living body with an adhesive. The biological signal measurement sensor includes: a surface, which is to be in contact with a part of the living body; and a first portion, which is opposite to the surface and to which the adhesive is to be attached. At least a part of the first portion has a first patterned indented shape.11-19-2009
20090275073DIAGNOSIS DEVICE AND DIAGNOSIS METHOD - A diagnosis device includes: a pretreating portion configured to suspend tissue to obtain a suspension; and an analyzing portion configured to analyze the suspension.11-05-2009
20090264721SIGNAL PROCESSING METHOD, SIGNAL PROCESSING APPARATUS, AND PULSE PHOTOMETER USING THE SAME - A method of processing first and second signals obtained by measuring a medium, to obtain a pulse wave signal and an artifact signal which are separated, includes: separating vectors of the first and second signals by using a separation matrix into a vector of the pulse wave signal and a vector of the artifact signal, the separation matrix including a norm ratio of a stable zone of the pulse wave signal and a compensated norm ratio of an artifact zone.10-22-2009
20090259131APPARATUS AND METHOD OF EVALUATING VASCULAR ENDOTHELIAL FUNCTION - An apparatus for evaluating a vascular endothelial function includes: a cuff, to be wound around a part of a body of a subject; a cuff pressure controller, configured to control a pressure of the cuff, and configured to apply continuous pressure stimulation; a cuff pressure detector, configured to detect the pressure of the cuff from output of a pressure sensor connected to the cuff; a pulse wave detector, configured to detect, from the output of the pressure sensor, pulse waves before and after the continuous pressure stimulation is applied; and an analyzer, configured to evaluate the vascular endothelial function by comparing the pulse waves detected before and after the continuous pressure stimulation is applied.10-15-2009
20090235686FLUID TEMPERATURE REGULATOR - A fluid temperature regulator includes: a case, containing a refrigerant; a cooling/warming device, configured to cool/warm the case; and a storage, including an opening through which a circuit for transfusing fluid is to be inserted/removed. The storage is configured to house the circuit inserted through the opening and be in contact with the circuit. The storage is surrounded by the refrigerant and watertight for the refrigerant in the case.09-24-2009
20090198147AUTONOMIC NERVE ACTIVITY MEASURING APPARATUS AND AUTONOMIC NERVE ACTIVITY MEASURING METHOD - An autonomic nerve activity measuring apparatus includes: a pulse wave acquiring unit, configured to acquire at least two pulse wave signals from a living body; an electric stimulation unit, configured to apply electric stimulation to the living body; a comparison unit, configured to compare the pulse wave signals acquired by the pulse wave acquiring unit; and an analysis unit, configured to analyze comparison result provided by the comparison unit.08-06-2009
20090198110Biological Information Acquisition Telemetry System - A biological information acquisition telemetry system includes: a transmit device, attached to a part of a living body and configured to acquire a biological signal to transmit the biological signal as a radio signal; a relay device, configured to perform space diversity reception, the relay device including: a first receiver, configured to wirelessly receive the radio signal from the transmit device; a first transmitter, configured to transmit the radio signal received by the first receiver; and an attachment unit, adapted to hold the first receiver and the first transmitter and attach the first receiver and the first transmitter to the living body; and a center apparatus, including: a second receiver, configured to receive the radio signal from the first transmitter of the relay device; a processor, configured to generate biological information based on the radio signal received by the second receiver; and a display, configured to display the biological information generated by the processor.08-06-2009
20090192400BIOLOGICAL INFORMATION DISPLAY METHOD AND BIOLOGICAL INFORMATION DISPLAY APPARATUS - A method of displaying a plurality of ST values constituting biological information of a subject displayed on a screen, includes: defining color gradations corresponding to degrees of the plurality of ST values to be acquired; acquiring the plurality of ST values from the subject; determining display elements for the acquired plurality of ST values in accordance with the defined color gradations; and displaying the determined display elements along a time axis in a belt-like form on the screen, for each of the plurality of ST values.07-30-2009
20090178908SWITCH STRUCTURE OF AUTOMATIC EXTERNAL DEFIBRILLATOR - A switch structure of an automatic external defibrillator including a housing member and a flap member for covering the housing member, open and closed states of the flap member and ON and OFF of a switch of the automatic external defibrillator which are associated with each other, the switch structure includes a movable unit for turning ON the switch when the flap member is in the open state and turning OFF the switch when the flap member is in the closed state and an operator performs further operation.07-16-2009
20090171169MONITORING NETWORK SYSTEM - A monitoring network system includes: a plurality of monitoring apparatuses; and a remote monitoring apparatus, connected to the plurality of monitoring apparatuses. At least one of the monitoring apparatuses is configured to acquire biological signals from a patient and includes: a first holder, configured to hold a first ID; and a transmitter, configured to transmit the biological signal to the remote monitoring apparatus. The remote monitoring apparatus includes: a second holder, configured to hold a second ID and association information for associating a screen area in a display with the second ID; a detector, configured to detect the at least one of the monitoring apparatuses, when the first ID is identical with the second ID; a receiver, configured to receive the biological signal from the at least one of the plurality of monitoring apparatuses detected by the detector; and a display controller, configured to display the biological signal on the screen area in the display based on the association information.07-02-2009
20090137912Blood Pressure Measurement Apparatus - A blood pressure measurement apparatus includes: a detector, operable to detect a first pulse, a second pulse prior to the first pulse and a third pulse prior to the second pulse under the same pressure; a first distinguisher, operable to distinguish whether waveforms of the first and second pulses are substantially identical with each other; a second distinguisher, when the waveforms are not substantially identical with each other, operable to distinguish whether parameters of the first, second and third pulses meet a condition corresponding to arrhythmia; a determiner, operable to determine the first and second pulses to be pulse waves when the waveforms are substantially identical with each other, and operable to determine the first, second and third pulses to be pulse waves when the parameters meet the condition; and a calculator, operable to calculate a blood pressure value based on the pulse waves.05-28-2009
20090112104BLOOD PRESSURE CALCULATION METHOD FOR NON-INVASIVE BLOOD PRESSURE MEASUREMENT APPARATUS - A method of calculating a blood pressure, includes: providing a non-invasive blood pressure measurement apparatus which includes a cuff being inflatable and deflatable and adapted to be fitted on a part of a living body and in which a plurality of calculation methods each of which has priority in accordance with a type of noise information are set; detecting, by the cuff, a signal waveform representing a change in an oscillation amplitude and a change in a cuff pressure; determining the type of the noise information contained in the detected signal waveform; deciding the blood pressure from at least one candidate value for the blood pressure, which is calculated by one of the calculation methods that has the priority with respect to the determined type of the noise information; and displaying the decided blood pressure,04-30-2009
20090088657SENSOR FOR MEASURING CARBON DIOXIDE IN RESPIRATORY GAS - A sensor main unit 04-02-2009
20090069646ADAPTOR FOR COLLECTING EXPIRATORY INFORMATION AND BIOLOGICAL INFORMATION PROCESSING SYSTEM USING THE SAME - An adaptor is adapted to be attached on a face of the subject to collect expiration gas of the subject. An airway case is formed with a chamber, and adapted to be coupled with a carbon dioxide sensor so that carbon dioxide in the expiration gas flowing through the chamber is detected by the carbon dioxide sensor. Nasal tubes are adapted to be inserted into nostrils of the subject when the adaptor is attached on the face of the subject. The nasal tubes are adapted to lead nasal expiration gas of the subject to the chamber. A mouth guide is adapted to lead oral expiration gas of the subject to the chamber when the adaptor is attached on the face of the subject. A branch tube is communicating with the nasal tubes and adapted to lead pressure generated by the nasal expiration gas to an external pressure sensor.03-12-2009
20090062668BLOOD PRESSURE MEASUREMENT CUFF - A blood pressure measurement cuff, includes: a first bag, including a first surface; a second bag, housing the first bag, and including a second surface facing to the first surface; and a sheet, fixed to one of the first surface and the second surface, and capable of being bent with no wrinkle therein.03-05-2009
20090056472ADAPTOR FOR FLOW SENSOR - In an adaptor for a flow sensor, a tubular body is adapted to allow respiratory gas to pass through. At least one fluid-resistant member is disposed in the tubular body. At least two pairs of first passages are formed in the fluid-resistant member and adapted to lead out pressures at two positions in the tubular body which are to be detected by the flow sensor.03-05-2009
20090024014Method and Apparatus for Measuring Pulse Rate and Oxygen Saturation Achieved During Exercise - In order to measure a pulse rate and an oxygen saturation of a subject who is in an exercised state, each of two pulse wave signals obtained from the subject is separated into a signal component and a noise component. A frequency spectrum of the signal component and a frequency spectrum of the noise component are obtained. It is judged whether a body motion of the subject is occurred based on the frequency spectrum of the signal component and the frequency spectrum of the noise component. A pulsation frequency is determined based on the judgment as to the body motion. The pulse rate is calculated based on the pulsation frequency. The oxygen saturation is calculated based on a ratio of spectra of the two pulse wave signals corresponding to the pulsation frequency.01-22-2009
20090018452PROBE ADAPTED TO MEASURE BIOLOGICAL SIGNAL - A probe is adapted to emit light having at least one wavelength as irradiation light with respect to a measured portion on a biological body in order to measure a biological signal. A light emitting element is configured to emit the light having the at least one wavelength. A light guiding member is provided with: a first end face, being light-reflective and having a first part opposing the light emitting element and a second part surrounding the first part; a second end face, being light-reflective and intersecting the first end face; and a third end face, being light-permeable, opposing the first end face and intersecting the second end face. The light guiding member is configured such that at least part of the light emitted from the light emitting element is reflected by at least one of the first end face and the second end face, and emitted from the third end face as the irradiation light. A light receiving element is configured to receive light reflected by the measured portion. A section shape of the first end face in a direction along an optical axis of the light emitting element is such a shape that at least the second part is coincident with a circumference of an ellipse intersecting a minor axis of the ellipse, and the optical axis of the light emitting element is coincident with the minor axis of the ellipse.01-15-2009
20080243012Method of compressing electrocardiogram data and electrocardiogram telemetry system using the same - In an electrocardiogram telemeter, a data acquirer is operable to acquire electrocardiogram data. A data compressor is operable to compress the electrocardiogram data with either a wavelet transform, a Huffman coding, or an arithmetic coding, thereby generating compressed electrocardiogram data adapted to be transmitted to a remote receiver which is configured to reconstruct the electrocardiogram data.10-02-2008
20080196715NASAL MASK FOR CARBON DIOXIDE GAS MEASUREMENT - A nasal mask is adapted to attached on a face of a subject so as to cover a nose of the subject. A shell has a contact edge adapted to be brought into close contact with the face of the subject, thereby forming a sealed space therein. An attachment portion is disposed in the shell and has an inner space. The attachment portion is configured to detachably engage with a sensor disposed outside the shell and operable to measure concentration of carbon dioxide gas expired from the nostrils. A guide member is disposed inside the shell and forming a passage adapted to introduce expired gas from the nostrils into the inner space. The shell is formed with an inlet adapted to introduce external gas into the sealed space. The expired gas is guarded by the guide member from the external gas introduced through the inlet. The attachment portion is formed with an outlet adapted to discharge the expired gas from the inner space to the sealed space.08-21-2008

Patent applications by NIHON KOHDEN CORPORATION