Abstract: A pulse wave measuring apparatus obtains the N-th derivative of a measured pulse waveform. The pulse waveform is classified into waveforms &agr;-&dgr; in accordance with the presence/absence of a shoulder (inflection point) at a rising phase of a pulse waveform of one beat, and also in accordance with the presence/absence of a shoulder in a falling phase. In each classified waveform, each calculated characteristic point of the N-th derivative corresponds to a traveling wave or reflected wave. The pulse wave measuring apparatus can calculate an AI value or the like that is the characteristic value of a pulse wave using such characteristic points and calculation equation of each waveform.

Abstract: Provide is a blood pressure meter cuff capable of avoiding an influence of an edge effect by pressurizing only a portion of a blood vessel in the downward vicinity of the body surface to thereby measure a correct blood pressure. A blood pressure meter cuff 1 includes: a fluid bag into which a fluid is injected; and a fixing tool fixing the fluid bag on a limb of a human body or the like, wherein a width, in the axial direction of the limb, of the fluid bag is a value suitable for selectively pressurizing only a portion of a blood vessel present in the downward vicinity of the skin. In a case where pressurization is imposed on only a portion of the radial artery present in the downward vicinity of the body surface and adjacent to a radial styloid process of a wrist, a width, in the axial direction of a limb, of the fluid bag is set to 15 mm or more and 25 mm or less.

Abstract: A pulse wave measuring apparatus includes a pressure sensor having a plurality of sensor elements wider in width than the small sensor element required in conventional tonometry. On the basis of differences &agr; and &bgr; of an AI value based on a pulse wave signal from the sensor element right above an artery and AI values based on pulse wave signals from two sensor elements located at a predetermined distance from the sensor element right above the artery, &agr;2+&bgr;2 is obtained. An AI value correction is calculated using a regression formula with &agr;2+&bgr;2 as a correction parameter representing the distortion degree. Using this correction value, the AI based on a pulse wave signal from the sensor element located right above the artery is corrected.

Abstract: A pulse wave measuring apparatus is disclosed, in which a sensor unit can be fixed easily under an appropriate pressure at an appropriate position on a living organism. With the living organism fixed by a living organism fixing device, a pressure sensitive portion arranged on the sensor unit is pressed against the living organism thereby to measure the pulse wave. The living organism fixing device includes a fixing stand for fixing the living organism in position, and fastening bands for connecting the fixing stand and the sensor unit and fastening the living organism fixedly to the fixing stand while at the same time activating by pressing the sensor unit against the living organism. The fastening bands include a first band portion with one end mounted on the sensor unit and the other end mounted on the fixing stand and a second band portion with one end mounted on the sensor unit and the other end removably mounted on the fixing stand.

Abstract: Provide is a wrist type blood pressure meter cuff not oppressing the non-selected artery so as to prevent its pulse waves from mixing into pulse waves of the selected artery necessary for measurement, in a cuff used in a blood pressure meter for measuring blood pressures by selecting and oppressing one artery of the wrist. A wrist type blood pressure meter cuff comprises a fluid bag for oppressing a selected artery of either radial artery or ulnar artery located at the wrist by feeding fluid inside to inflate, and a fixing member for fixing the fluid bag at the wrist. By forming a gap between the fixing member and the wrist, the oppressing pressure directly applied from the fixing member to the wrist at which the non-selected artery is located is set smaller than the oppressing pressure directly applied from the fixing member to other position of the wrist when oppressing the wrist by inflating the fluid bag. This gap is produced by a swollen part provided in the fixing member.

Abstract: Provided are an apparatus and method of detecting a pulse wave at the certain position of an artery. A pressure sensor array has a pressurization surface on which plural pressure sensors are disposed in a direction intersecting with an artery. The pressurization surface, when a pulse wave is detected, is pressed against a surface of a living human body by a cuff pressure in a pressurization cuff. CPU, when a pulse wave is detected, inputs voltage signals indicating pressure information from the plural pressure sensors simultaneously along with the time axis. CPU extracts the DC component indicating a pressure component caused by a hard member from a voltage signal to specify the pressure sensor located above the hard member from the extracted DC component.

Abstract: Provided is a pulse wave measuring apparatus preventing breakage of a pressure sensing surface in the non-measurement stage. The pulse wave measuring apparatus includes: a housing and a pressure sensing section, wherein an opening is formed at the bottom surface of the housing, the pressure sensing section is mounted inside of the housing, the pressure sensing section moves freely upwardly and downwardly through the opening between a measuring position at which a pressure sensing surface is pressed to a human body to measure a pulse wave and a waiting position at which the pressure sensing section 20 is accommodated inside of the housing to be on standby and the housing has a slide cover protecting the pressure sensing surface in a state where the pressure sensing section is located at the waiting position.

Abstract: A liquid atomizer includes a main body and an ampoule holder detachably attached to the main body for holding ampoules in an annular formation. The main body has an atomizing part for atomizing the liquid discharged from outlets of the ampoules. The outlet of each of these ampoules can be disposed proximal to the atomizing part by moving the ampoules around the annular formation. Positioning devices are between the main body and the ampoule holder for positioning the ampoule holder properly with respect to the main body. The ampoule holder holds the ampoules such that each of the ampoules can move between an advanced position and a retracted position. The outlet of each ampoule moves into the atomizing part when the ampoule moves to the advanced position. The ampoule holder is able to undergo a rotary motion with respect to the main body when each of the ampoules is at the retracted position.

Abstract: An ampoule for containing a specified amount of liquid inside to be used for a liquid atomizer has a tubular main body having an open front part including an outlet at one end and an open back part at an opposite end. A piston is inserted into the main body from the open front part in an airtight manner and is slidable axially inside the main body. Another piston is inserted into the main body from the open back part in an airtight manner so as to be slidable axially inside the main body. The two pistons form a reservoir in between for storing a liquid. The forwardly located piston has a weakened part on the side that faces the reservoir. As a sharp member extending from the other piston penetrates this weakened, the reservoir and the outlet become connected and the liquid inside the reservoir is discharged.

Abstract: A blood pressure monitor associates information representing measuring time input from a clock with measured blood pressure values so as to store them in a memory. Blood pressure values measured in a morning time zone and blood pressure values measured in an evening time zone are grouped based on the time information associated with the blood pressure values so as to be stored in the memory. A data intra-group average calculating section calculates averages of the blood pressure values in the groups, and a risk calculating section calculates a risk value based on the calculated results of the data intra-group average calculating section.

Abstract: A sensor is pressurized adjustably against a patient's wrist and detects a pressurized pulse wave of a radial artery in a noninvasive manner so as to measure blood pressure on an arm band wound around the patient's predetermined portion. A CPU calculates indices reflecting a reflecting phenomenon of a pulse wave as organism information different from the blood pressure based on the detected pulse waveform, and relates the measured blood pressure value with calculated indices so as to display them on an indicator. A doctor checks displayed contents so as to clearly understand a state of a circulatory system represented by a correlation between the patient's blood pressure and the indices so as to be capable of obtaining information which supports a diagnosis and prescription quickly.

Abstract: Provided are a medicine case, a medicine case with a blood pressure measuring function, and a medication management system capable of storing blood pressure measurement together with medication record automatically, displaying simultaneously, and entering and issuing, and also supplying clinically useful information. In the medicine case, since the medicine to be taken is indicated at every timing specified by the attending physician, and the medicine can be taken without error or fail, and also the medication information and blood pressure measuring results are stored and displayed simultaneously, and can be observed simultaneously at a glance at a medical institute, and changes in blood pressure information and medication effects are determined easily, so that clinically useful information can be obtained.

Abstract: A blood pressure measuring apparatus oppresses blood vessels of a human body by an inflating unit through a cuff. When the blood vessels are oppressed through the cuff, a pulse wave superposed on a cuff pressure signal through a cuff pressure detector is detected by a pulse wave detector. The waveform of the detected pulse wave changes similarly to changes of pressure in the oppressed blood vessels in one heartbeat period. The information of the detected pulse wave waveform and the cuff pressure at this time are stored in a memory.