摘要:
A blood pressure measuring apparatus to measure blood pressure based on a change in a pressure by a cuff mounted to a subject comprises: cuff pressure controlling means for deflating the cuff after avascularization by the cuff at a body part around which the cuff is placed; detecting means for detecting the change in a pressure by the cuff and outputting the detection as an electrical signal; extracting means for extracting a pulse wave signal from the electrical signal; and calculating means for calculating a systolic blood pressure value and a diastolic blood pressure value based on a relation between a change rate of an index value which is calculated by multiplying a maximum amplitude of each pulse of the pulse wave signal by the cuff pressure corresponding to the maximum amplitude and a predetermined value. The blood pressure measuring apparatus achieves a high-speed measurement while suppressing the reduction of accuracy.
摘要:
An optical fiber is formed by performing vapor phase deposition of SiO2 on the outside of a glass rod comprising a core section and a first cladding section and drawing a glass preform which formed by a second cladding section. Also, a single mode optical fiber is manufactured so that the ratio of the diameter D of the first cladding section and the diameter d of the core section is in a range of 4.0 to 4.8, and OH concentration is 0.1 ppm or less. Also, an optical fiber is manufactured so that a value of D/d>4.8, and the OH concentration is 0. 1 ppm or less. It is thereby possible to maintain an initial loss in the 1380 nm wavelength range even if hydrogen diffusion occurs.
摘要:
An apparatus for measuring an inferior-and-superior-limb blood-pressure index of a living subject, including an inferior-limb blood-pressure measuring device, a superior-limb blood-pressure measuring device, an index determining means for determining the inferior-and-superior-limb blood-pressure index, based on a systolic blood pressure of an inferior limb, measured by the inferior-limb blood-pressure measuring device and a systolic blood pressure of a superior limb, measured by the superior-limb blood-pressure measuring device, an estimated-inferior-limb-systolic-blood-pressure determining means for determining an estimated systolic blood pressure of the inferior limb, an estimated-superior-limb-systolic-blood-pressure determining means for determining an estimated systolic blood pressure of the superior limb, and a cuff-pressure control means for controlling at least one of respective pressures of the inferior-limb cuff and the superior-limb cuff, such that when the respective pressures of an inferior-limb cuff and a superior-limb cuff are decreased, the respective pressures of the inferior-limb cuff and the superior-limb cuff become equal to the respective estimated systolic blood pressures of the inferior limb and the superior limb, at the same time.
摘要:
An apparatus for measuring a superior-and-inferior-limb blood-pressure index of a living subject, including a first blood-pressure measuring device which measures a first blood pressure of a right inferior limb of the subject, a second blood-pressure measuring device which measures a second blood pressure of a left inferior limb of the subject, a third blood-pressure measuring device which measures a third blood pressure of a superior limb of the subject, a first information obtaining device which obtains first information relating to a first velocity of propagation of a first pulse wave which propagates through a first route a portion of which runs in the right inferior limb, a second information obtaining device which obtains second information relating to a second velocity of propagation of a second pulse wave which propagates through a second route a portion of which runs in the left inferior limb, a selecting device for selecting one of the measured first and second blood pressures that corresponds to one of the first and second information that relates to a lower one of the first and second velocities, and an index determining device for determining the superior-and-inferior-limb blood-pressure index, based on the selected one of the first and second blood pressures, and the measured third blood pressure.
摘要:
An apparatus for measuring a superior-and-inferior-limb blood-pressure (“BP”) index of a living subject, including an inferior-limb BP measuring device which includes a first inflatable cuff adapted to be wound around an inferior limb of the subject and which measures an inferior-limb BP value of the subject based on a first pulse wave obtained while a first pressure of the first cuff is changed, a superior-limb BP measuring device which includes a second inflatable cuff adapted to be wound around a superior limb of the subject and which measures a superior-limb BP value of the subject based on a second pulse wave obtained while a second pressure of the second cuff is changed, a cuff-pressure changing device which changes the first and second pressures of the first and second cuffs, such that a time when the first pressure being changed becomes equal to an estimated inferior-limb BP value coincides with a time when the second pressure being changed becomes equal to an estimated superior-limb BP value, and an index determining device for determining the BP index of the subject, based on the inferior-limb and superior-limb BP values measured by the inferior-limb and superior-limb BP measuring devices while the first and second pressures of the first and second cuffs are changed by the cuff-pressure changing device.
摘要:
A manufacturing method for a porous silica body including: a step of arranging a plurality of burners around an optical fiber core rod; and a deposition step of depositing a plurality of soot layers on an outer peripheral surface of the optical fiber core rod by the burners, wherein the deposition step comprises forming each of the plurality of soot layers by one of the burners, and depositing each soot layer to satisfy 0.2≦x≦0.5 and 0.1≦y≦4.0x2−3.8x+1.3 where x (g/cm3) is the average bulk density and y (mm) is the deposition thickness, and so that the maximum value of the bulk density of the soot layers becomes 0.6 g/cm3 or less.
摘要:
Disclosed is a sphygmomanometer exhaust valve having a valve that functions as a lever, and in which a solenoid moves the point of force of the valve to urge a valve membrane formed at the point of action against a ventilation port. A support member supports the valve while fixing its fulcrum. When no electric current is supplied to the solenoid, the support member holds the valve in a predetermined position in which the ventilation port is open.
摘要:
A blood pressure measuring apparatus to measure blood pressure based on a change in a pressure by a cuff mounted to a subject comprises: cuff pressure controlling means for deflating the cuff after avascularization by the cuff at a body part around which the cuff is placed; detecting means for detecting the change in a pressure by the cuff and outputting the detection as an electrical signal; extracting means for extracting a pulse wave signal from the electrical signal; and calculating means for calculating a systolic blood pressure value and a diastolic blood pressure value based on a relation between a change rate of an index value which is calculated by multiplying a maximum amplitude of each pulse of the pulse wave signal by the cuff pressure corresponding to the maximum amplitude and a predetermined value. The blood pressure measuring apparatus achieves a high speed measurement while suppressing the reduction of accuracy.
摘要:
A method for manufacturing a glass rod includes introducing a glass source material gas, an inert gas, a flammable gas, and a combustion assisting gas to a multi-tube burner, where the multi-tube burner includes a first multi-tube, a plurality of nozzles provided surrounding the first multi-tube about a central axis of the first multi-tube and a second multi-tube provided surrounding the nozzles, where the first multi-tube and the second multi-tube have a common central axis; hydrolyzing or oxidizing the glass source material gas in a flame generated by a reaction between the flammable gas and the combustion assisting gas to synthesize glass microparticles; and depositing the glass microparticles on the outer periphery portion of the starting rod in a radial direction to manufacture the glass rod, wherein a ratio of a flow rate A of the flammable gas to a flow rate B of the combustion assisting gas (A/B) satisfies the following inequality: 2.5≦A/B≦4.5.
摘要翻译:玻璃棒的制造方法包括将玻璃原料气体,惰性气体,易燃气体和助燃气体引入到多管燃烧器中,多管燃烧器包括第一多管,多管燃烧器 围绕第一多管的中心轴设置的第一多管周围的喷嘴和围绕喷嘴的第二多管,其中第一多管和第二多管具有共同的中心轴线; 在由可燃气体和助燃气体之间的反应产生的火焰中水解或氧化玻璃原料气体以合成玻璃微粒; 并且将玻璃微粒沿径向沉积在起始杆的外周部上以制造玻璃棒,其中可燃气体的流量A与助燃气体的流量B(A / B )满足以下不等式:2.5 <= A / B <= 4.5。
摘要:
An apparatus for measuring an inferior-and-superior-limb blood-pressure index of a patient, including an inferior-limb blood-pressure measuring device, a superior-limb blood-pressure measuring device, an index determining device for determining the inferior-and-superior-limb blood-pressure index, based on a blood pressure of an inferior limb measured by the inferior-limb blood-pressure measuring device and a blood pressure of a superior limb measured by the superior-limb blood-pressure measuring device, an inferior-limb-pulse-wave-propagation-velocity-related-information, obtaining device which obtains inferior-limb-pulse-wave-propagation-velocity-related information, an upper-half-body-pulse-wave-propagation-velocity-related-information obtaining device which obtains upper-half-body-pulse-wave-propagation-velocity-related information, and an evaluation-information obtaining device for obtaining, based on the inferior-limb-pulse-wave-propagation-velocity-related information and the upper-half-body-pulse-wave-propagation-velocity-related information, evaluation information that is related to evaluation of reliability of the inferior-and superior-limb blood-pressure index.