Abstract: An ultrasonic diagnostic apparatus according to the present invention is designed to measure a vascular wall. The apparatus includes: a transmitting section that drives a probe to transmit an ultrasonic wave toward a subject including a blood vessel; a receiving section that receives an ultrasonic echo, produced by getting the ultrasonic wave reflected by the subject, at the probe to generate a received signal; a tomographic image processing section for generating an image signal based on the received signal to present the tomographic image of the subject on a display section; a first borderline generating section for determining a first type of borderline based on the tomographic image presented on the display section; and a second borderline generating section for generating at least one borderline of a second type by translating the first type of borderline.

Abstract: An ultrasonic Doppler blood flow meter has a clutter component estimation unit 110 for estimating amplitude, initial phase, and phase velocity of the clutter component using an output from the phase detector 104 to reduce a transient phenomenon. Using the estimated data, initial values of the wall filter 105 are generated by the initial filter value generating unit 11 and then provided to the wall filter for the filtering process.

Abstract: There is provided an excellent biological signal monitor device that allows a living tissue moving in accordance with a body motion or a vibration to be observed as if it were standing still. A reverse correction processing unit (114) subjects a B-mode image to reverse correction based on a movement amount of the living tissue detected by a movement amount detection unit (113), and outputs the B-mode image corresponding to the living tissue moving in accordance with a body motion as quasi-still image information. An arithmetic processing unit (115) subjects the quasi-still image information from the reverse correction processing unit (114) to arithmetic processing such as averaging and filter processing, so as to remove a random noise component. As a result, it is possible to display, for example, a contour portion of a blood vessel wall as the living tissue clearly.

Abstract: There is provided by the present invention a novel micro passage chip having such a structure that a fluid can be transferred without using a physical or mechanical squeezing means that is applied from above the substrate of the micro passage chip.

Abstract: There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the

Abstract: An object of the present invention is to provide a visual training apparatus in which a trainee can make accommodation of the trainee's eye easily when the trainee is training. The visual training apparatus includes a display member 1, an optical system 2, a base 3 and a housing 4. The display member 1 displays a training image, and is fixed to the base 3 so as to cross an optic axis 51 of a trainee 5 substantially perpendicularly thereto. The optical system 2 includes a lens 21, a feed screw 22 and a motor 23. When the motor 23 is driven, the lens 21 moves along the optic axis 51 with the aid of the feed screw 22. Thus, the optical characteristic of the optical system 2 is changed so that the optical distance between the eye position of the trainee 5 and the display member 1 can be changed. The display member 1 displays a training image having dimensions proportional to the optical distance between the eye position of the trainee and the display member 1.

Abstract: The present invention is to provide an ultrasonograph which can accurately measure an IMT value of a blood vessel by using an ultrasonic wave.

Abstract: The present invention aims at providing an ultrasonic diagnostic apparatus capable of acquiring more accurate tissue character values such as strain, an average elastic modulus, and an average viscosity. The ultrasonic diagnostic apparatus of the present invention detects tissue boundaries of a subject in accordance with a received signal based on an ultrasonic echo from a receiving section 103, by means of a boundary detection section 110; and tracks motions of the tissue boundaries of the subject by means of a tissue tracking section 108. A tissue character value computing section 109 computes tissue character values of the subject from the motions of the tissue boundaries of the subject tracked by the tissue tracking section 108 and a blood pressure value of the subject acquired from a blood pressure value acquisition section 112.

Abstract: The present invention aims at providing an ultrasonic diagnostic apparatus capable of displaying a stable spatial distribution of elastic characteristics for each hear beat without depending on the accuracy or stability of measurement of blood pressure and without involvement of measurement of blood pressure. In an ultrasonic diagnostic apparatus of the present invention, an ultrasonic reflected wave transmitted from an ultrasonic probe 13 and reflected by biomedical tissue is input to a computing section 19 by way of a receiving section 15, a delay time control section 16, a phase detection section 17, and a filter section 18. In accordance with the phase detection signal acquired from the phase detection section 17, the computing section 19 computes a relative elastic characteristic which is an elastic characteristic normalized by an elastic characteristic of an arbitrary reference area in the biomedical tissue.

Abstract: The present invention provides a microchannel chip having microchannels fabricated without using an original such as a mold. The microchannel chip of the present invention comprises at least an upper substrate and a lower substrate, the upper substrate and the lower substrate being bonded together, characterized in that at least one non-bonding thin-film layer is formed on the bonding side of at least one substrate and that opposite ends of the non-bonding thin-film layer are each connected to a port open to the atmosphere. When a positive pressure is applied through one port, the area that corresponds to the non-bonding thin-film layer inflates to create a gap that can function as a microchannel, with the result that a liquid and/or a gas can be transferred from one port to the other.

Abstract: A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a controller for performing PWM control of those plurality of inverter circuits. This controller is constructed in a way to synchronize a PWM period of the plurality of inverter circuits, so as to drive a plurality of motors at once by means of those plurality of inverter circuits respectively.

Abstract: A tomographic image and a tissue characteristic image that are in conformity with each other in terms of time-phase and positional relationships can be displayed superimposedly, thereby providing an excellent ultrasonic diagnostic apparatus that enables an easy and detailed observation of a relationship between a structure and a characteristic of a subject tissue. During an operation of ultrasonic wave transmission/reception (in a live mode), a control part (100) allows a tomographic image to be renewed continuously, displayed on a monitor (107), and stored in a tomographic image memory (110), while allowing an elastic modulus image as a tissue characteristic image to be renewed per heartbeat, displayed on the monitor, and stored in an elastic-modulus-image memory (111) as a tissue characteristic image memory.

Abstract: A subject-side apparatus 10A is provided with a cine memory 15 for sequentially storing an ultrasonic signal that is received by an ultrasonic wave transmission/reception portion 12 per each frame. Every time after freezing when moving a pointer for designating a frame to be reproduced in a hospital-side apparatus 20A, a communication line interface 14 of the subject-side apparatus reproduces a frame that is required to be retransmitted by a console 24 of the hospital-side apparatus from the cine memory, and retransmits it to a communication line interface 21 of the hospital-side apparatus via a communication line 30. Then, an ultrasonic image of the retransmitted frame is displayed on a monitor 23. When an examiner performs a diagnosis with respect to a subject in a remote location via the communication line, an ultrasonic image can be displayed with sufficiently suppressed degradation of an image quality compared with an image quality of an original image, even at a low data rate of the communication line.

Abstract: There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the

Abstract: An ultrasonic diagnostic apparatus according to the present invention includes: a transmitting section, which drives a probe that transmits an ultrasonic wave toward a subject; a receiving section, which receives an ultrasonic echo, produced by getting the ultrasonic wave reflected by the subject, through the probe, thereby generating a received signal; a property value calculating section for calculating property values of the subject based on the received signal over a period of time; a stability estimating section for sequentially estimating the degrees of stability of the property values that have been calculated over the period of time; and a presenting section for presenting the degrees of stability thereon.

Abstract: A micro-channel chip comprising at least an upper substrate, a lower substrate, and an intermediate substrate interposed between the upper substrate and the lower substrate, at least one non-adhesive thin-film layer for a micro-channel being linearly formed on one mating side which is selected from among the mating sides of the upper substrate and the intermediate substrate and the mating sides of the lower substrate and the intermediate substrate, at least two ports being provided on the non-adhesive thin-film layer for a micro-channel, at least one non-adhesive thin-film layer for a shutter channel being linearly formed on the mating side opposite the mating side on which the non-adhesive thin-film layer for a micro-channel is formed such that it intersects the non-adhesive thin-film layer for a micro-channel by passing beneath or over the latter, with the intermediate substrate lying in between, and a pressure supply port for inflating that part of the substrate which corresponds to the non-adhesive thin-f

Abstract: The present invention is for an ultrasonic Doppler blood flow measurement device with which high-speed computation is possible, even when a memory having the characteristic of different read/write speeds in the row direction and the column direction is used for the buffer memory when computing blood flow information, without being affected by the slower read/write speed.

Abstract: An ultrasonic diagnostic apparatus according to the present invention includes: a transmitting section 14 for driving an ultrasonic probe 13 sending out an ultrasonic transmitted wave toward a tissue of an organism; a receiving section 15 for receiving an ultrasonic reflected wave, produced by getting the ultrasonic transmitted wave reflected by the tissue of the organism, through the ultrasonic probe to generate a received signal; a phase detecting section 17 for detecting the phase of the received signal to generate a phase detected signal; a positional displacement calculating section 31a for calculating the magnitudes of positional displacements at multiple measuring points, set on the tissue of the organism, based on the phase detected signal; a thickness variation calculating section 31b for calculating thicknesses or thickness variations, each measured between two arbitrary points set with respect to the measuring points, based on the magnitudes of positional displacements; and a maximum/minimum value

Abstract: An ultrasonic diagnostic apparatus according to the present invention includes: a transmitting section for driving an ultrasonic probe that transmits an ultrasonic wave toward a subject's tissue; a receiving section for receiving a reflected wave, produced by getting the ultrasonic wave reflected by the tissue of the organism, through the ultrasonic probe to generate a received signal; a plurality of filters for extracting multiple signal components, belonging to mutually different frequency bands, from the received signal; a plurality of phase detecting sections for detecting the respective phases of the multiple signal components; and a tissue tracking section for tracking the motion of the subject's tissue on the basis of the phases, thereby outputting tracking information.

Abstract: A technology for performing the filter processing of blood flow velocity data having aliasing by only common filter processing means and common addition and subtraction means and actualizing image display of smooth blood flow velocity is disclosed. According to this technology, when performing image display of the blood flow velocity of blood within a subject biological body using an ultrasonic wave Doppler method, the difference values of data D33 of an arbitrary focus point and data D32 and D34 of points spatially prior and subsequent to this focus point are calculated in the pre-processing unit (difference calculating unit) 41. Then, in the filtering unit 42, after filter processing is performed on these difference values, data D39 after filter processing and data D33 of the arbitrary focus point are added in the post-processing unit (addition processing unit) 43.