Terumo Kabushiki Kaisha

Ema Itoh

Isao Mori

Kazuyuki Takahashi

An imaging apparatus is disclosed for diagnosis including a plurality of transmitting and receiving units, an error of a scale of a tomographic image to be generated is reduced. The imaging apparatus includes a transmitting and receiving unit comprising a first transmitting and receiving unit configured to perform transmission and reception of an ultrasound signal and a second transmitting and receiving unit configured to perform transmission and reception of an optical signal when rotating in the lumen of the measurement subject body; and a processor configured to: convert positional information of each position outside the range in which the flushing liquid flows regarding the ultrasound line data generated by the processor based on a ratio between the ultrasound propagation velocity in the flushing liquid and the ultrasound propagation velocity in the blood vessel; and construct the first tomographic image using the ultrasound line data which is converted by the processor.

Imaging apparatus for diagnosis and program

A control device is disclosed that includes a processor configured to: receive a signal from an imaging core, the imaging core including an optical transceiver and an ultrasound transceiver; determine whether the imaging core is in a state where the ultrasound transceiver can properly execute transmission and reception, based on at least one of the signal from the optical transceiver and the signal from the ultrasound transceiver which are received from the imaging; and control execution of an optical path length adjustment for imaging with the optical transceiver when the ultrasound transceiver can properly execute the transmission and reception.

Control device, image diagnosis apparatus, method for processing of control device, and program

A configuration is provided for firmly fixing a transmitting and receiving unit for IVUS and a transmitting and receiving unit for OCT in a probe of an imaging apparatus for diagnosis in which space saving is achieved. The probe includes a cylindrical housing in which an ultrasonic wave transmitting and receiving unit is arranged on a distal side and a light transmitting and receiving unit is arranged on a proximal side. The ultrasonic wave transmitting and receiving unit and the light transmitting and receiving unit being fixed to the cylindrical housing in a state where a base of the ultrasonic wave transmitting and receiving unit and a base portion of the ball lens of the light transmitting and receiving unit are embedded in an adhesive agent.

Probe

An imaging apparatus is disclosed for diagnosis generating a first tomographic image and a second tomographic image inside a lumen of a measurement subject body by using an ultrasound signal which is transmitted and received by a first transmitting and receiving unit and an optical signal which is transmitted and received by a second transmitting and receiving unit in a case where a transmitting and receiving unit in which the first transmitting and receiving unit performing transmission and reception of the ultrasound signal and the second transmitting and receiving unit performing transmission and reception of the optical signal are disposed moves in an axial direction while rotating in the lumen of the measurement subject body.

An imaging apparatus is disclosed for diagnosis including a plurality of transmitting and receiving units, an error of a scale of a tomographic image to be generated is reduced. The imaging apparatus can include including acquisition means for acquiring a propagation velocity of an ultrasound signal of a flushing liquid, generation means for generating ultrasound line data based on the propagation velocity of the ultrasound signal in a blood vessel tissue, and conversion means for converting positional information of each position within a range in which the flushing liquid flows regarding the ultrasound line data generated by the generation means based on a ratio between the propagation velocity in the blood vessel tissue and the propagation velocity in the flushing liquid. A tomographic image of a blood vessel is constructed by using the ultrasound line data converted by the conversion means.

An imaging apparatus, method, and computer readable medium are disclosed, which can detect in a case where a foreign substance such as air and blood other than transparent liquid is present inside a catheter, and can urge a user to perform priming so that an image having higher accuracy can be reconstructed. According to the present disclosure, the imaging apparatus can determined whether or not the foreign substance such as air and blood is present between an imaging core and an inner surface of a catheter sheath, from line data which is generated based on interference light data obtained when the priming is performed or at stages before and after pull-back scanning is performed. In a case where the foreign substance enters, a message urging the user to perform the priming is displayed.

Imaging apparatus for diagnosis, method of controlling the same, program, and computer readable storage medium

A tomographic image generation device acquires ultrasonic wave data and interference light data to be used for generating a tomographic image for one line in respective rotation positions of the transmitting and receiving unit by performing sampling respectively on an ultrasonic wave echo signal and an interference light signal obtained by driving the ultrasonic wave transmitting and receiving unit and the optical transmitting and receiving unit while rotating the transmitting and receiving unit. Then, the tomographic image generation device controls operation timing of the acquisition means so that a sampling period for performing sampling on the interference light signal for one line and a predetermined period from driving of the ultrasonic wave transmitting and receiving unit for ultrasonic wave oscillation are not overlapped.

Tomographic image generation device and control method

A configuration is provided for firmly fixing a transmitting and receiving unit for IVUS and a transmitting and receiving unit for OCT in a probe of an imaging apparatus for diagnosis in which space saving is achieved. The probe includes a cylindrical housing in which an ultrasonic wave transmitting and receiving unit is arranged on a distal side and a light transmitting and receiving unit is arranged on a proximal side. Two signal wires are connected to the ultrasonic wave transmitting and receiving unit and which extend toward the proximal side substantially parallel to each other and which are arranged in the housing so as to cause the distance between the two signal wires to be smaller than a width of a ball lens portion of the light transmitting and receiving unit.

A probe includes a transmitting and receiving unit in which an ultrasonic wave transmitting and receiving unit and a light transmitting and receiving unit are arranged. The ultrasonic wave transmitting and receiving unit and the light transmitting and receiving unit are arranged along an axial direction. A distance L [mm] between a position of the ultrasonic wave transmitting and receiving unit in the axial direction and a position of the light transmitting and receiving unit in the axial direction, and the angular difference &#x3b8; [degrees] between a transmit direction of an ultrasonic wave of the ultrasonic wave transmitting and receiving unit and a transmit direction of light of the light transmitting and receiving unit satisfy a relationship of L=V/&#x3c9;&#xd7;&#x3b8;/360 when having a rotary velocity &#x3c9; [r/s] of the transmitting and receiving unitand a movement velocity V [mm/s] of the transmitting and receiving unitin the axial direction.

Growing community of inventors

Hadano, Japan

Ema Itoh