Patents Assigned to Canon Medical Systems Corporation
  • Publication number: 20190247253
    Abstract: According to one embodiment, a bed system that is mechanically and electrically connectable to a main body of a medical image diagnosis apparatus includes a traveling unit and an interface. The traveling unit provided between the bed system and a floor surface. The interface configured to receive an operation of locking or unlocking driving of the traveling unit. The operation on the interface of locking or unlocking driving of the traveling unit is interlocked with electrical connection between the bed system and the main body.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 15, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Satoshi Takamura, Yoichi Hiyama, Shigeru Usuda, Yurina Otsuka
  • Publication number: 20190247024
    Abstract: Various types of sub-preset conditions corresponding to a selected mother preset condition are read out from a preset condition storage unit which stores at least a plurality of mother preset conditions set concerning image data acquisition conditions and various types of sub-preset conditions set by updating all or some of the image data acquisition conditions included in each of the mother preset conditions. A sub-preset condition suitable for ultrasonic examination on the object is selected from the readout various types of sub-preset conditions. An image data acquisition condition is initialized based on the selected mother preset condition with respect to each unit related to generation of the image data. The image data acquisition condition is updated by using the selected sub-preset condition. Image data is generated based on a reception signal in ultrasonic transmission/reception using the updated image data acquisition condition.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masami TAKAHASHI, Masamichi Oyanagi
  • Publication number: 20190250225
    Abstract: According to one embodiment, an RF circuit includes a directional coupler, processing circuitry, and an adjuster. The directional coupler includes a first port for outputting at least a part of a traveling wave and a second port for outputting at least a part of a reflected wave. The processing circuitry is configured to calculate impedance of a load side that is viewed from the directional coupler, by using a voltage standing wave ratio based on respective outputs from the first port and the second port and a phase of the reflected wave based on an output from the second port. The adjuster is configured to adjust an output from at least one of the first port and the second port based on the impedance calculated by the processing circuitry.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 15, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masaki TANJI, Hajime TANAKA, Hiroaki MURAKOSHI
  • Patent number: 10376236
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry sets a ROI in ultrasound image data that corresponds to at least one temporal phase and is among moving image data of two-/three-dimensional ultrasound image data acquired while using a region containing a tissue in motion as an image taking target. The processing circuitry obtains first position information of an estimated ROI based on movement information and second position information of an estimated ROI based on information other than the movement information, in ultrasound image data corresponding to the other remaining temporal phases within an acquisition period of the moving image data. The processing circuitry tracks the ROI, by obtaining position information combining the first and second position information based on an index related to reliability of the movement information, as position information of the ROI.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 13, 2019
    Assignee: Canon Medical Systems Corporation
    Inventor: Yasuhiko Abe
  • Patent number: 10381188
    Abstract: A radiographic image diagnostic apparatus according to embodiments includes an X-ray tube, a holding member, and coil control circuitry. The X-ray tube includes: a cathode that emits electrons; coils that generate electromagnetic force; and an anode that rotates about a rotation axis in response to the electromagnetic force and to generate an X-ray by receiving the electrons. The holding member holds the X-ray tube so that the X-ray tube is movable. The coil control circuitry controls a current to be supplied to the coils based on at least one of a position of the X-ray tube, a direction of the X-ray tube, or a velocity of the X-ray tube.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: August 13, 2019
    Assignee: Canon Medical Systems Corporation
    Inventor: Hiroshi Hirayama
  • Publication number: 20190239854
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes an ultrasonic probe, a memory, and processing circuitry. The ultrasonic probe includes ultrasonic transducers. The processing circuitry measures first reflected wave signals generated by the ultrasonic probe at a first time point. The processing circuitry stores information concerning the first reflected wave signals in the memory. The processing circuitry measures second reflected wave signals generated by the ultrasonic probe at a second time point. The processing circuitry performs correction to suppress variations between the second reflected wave signals respectively generated by the ultrasonic transducers based on the information concerning the first and second reflected wave signals.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 8, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Kengo OKADA, Fuminori FUJITA
  • Publication number: 20190239861
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry configured to select at least one heartbeat from among a plurality of heartbeats based on a heartbeat selection condition, generate a highlight image in which a range corresponding to the selected heartbeat is emphasized, and display an electrocardiographic waveform corresponding to the heartbeats, an ultrasonic image corresponding to the electrocardiographic waveform, and the highlight image.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 8, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Yutaka KOBAYASHI, Atsushi Nakai, Shigemitsu Nakaya, Jiro Higuchi, Kazuo Tezuka, Yoshitaka Mine
  • Publication number: 20190244352
    Abstract: An analyzing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to calculate a tissue characteristic parameter value with respect to each of a plurality of positions within a region of interest, by analyzing a result of a scan performed on a patient. The processing circuitry is configured to determine a measurement region in the region of interest by performing an analysis while using the tissue characteristic parameter values. The processing circuitry is configured to calculate a statistic value of the tissue characteristic parameter values in the measurement region.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Yasunori HONJO, Yu Igarashi, Masaki Watanabe
  • Publication number: 20190239859
    Abstract: The medical image diagnostic apparatus according to a present embodiment includes processing circuitry. The processing circuitry is configured to display an ultrasonic image and a non-ultrasonic medical image to a display. The processing circuitry is configured to determine which of a displayed ultrasonic image and a displayed non-ultrasonic medical image is live. The processing circuitry is configured to inform information indicating which any one of the displayed ultrasonic image and the displayed non-ultrasonic medical image is live in accordance with the determination.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 8, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Sayaka TAKAHASHI, Ryoichi Nagae, Nobuhide Ooi, Mitsuo Akiyama, Koji Ando, Minori Izumi, Takashi Koyakumaru
  • Patent number: 10371700
    Abstract: An in-vitro diagnostic includes a housing, a storage, and a blocking agent. The housing houses a liquid including a test substance included in a sample extracted from a subject. The storage stores a substance that specifically reacts with the test substance. The blocking agent is placed to separate the container and the storage.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 6, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Asuka Hirano, Shoichi Kanayama, Ichiro Tono
  • Patent number: 10368821
    Abstract: The image processing apparatus includes a processing circuitry. The processing circuitry is configured to obtain first volume data showing a morphological shape of an object and second volume data showing information corresponding to a position spatially different from a position of the object. The processing circuitry is configured to provide the information in the second volume data to the position of the object in the first volume data.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: August 6, 2019
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroyuki Ohuchi, Shinichi Hashimoto
  • Patent number: 10368841
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes an abdominal image generator, an ultrasonic image generation unit, a specifier, and a display controller. The abdominal image generator generates an abdominal image graphically representing the abdomen of a mother. The ultrasonic image generation unit generates an ultrasonic image based on a reflected wave signal received by an ultrasonic probe put on the abdomen of the mother. The specifier specifies the position of the ultrasonic probe on the abdominal image. The display controller causes superimposed display of the ultrasonic image on the position on the abdominal image thus specified in accordance with the echo direction of the ultrasonic probe.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 6, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Megumu Fujiwara, Kensuke Shinoda
  • Patent number: 10371829
    Abstract: An X-ray detector according to an embodiment includes a scintillator array and a photodiode array. In the scintillator array, a plurality of scintillators are arranged in a first direction and a second direction intersecting the first direction. The photodiode array includes photodiodes each of which is installed for a different one of the scintillators and each of which has an active area configured to convert visible light emitted by the scintillator into an electrical signal. The photodiodes are arranged in such a manner that the widths of the active areas are equal to one another in the first direction.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: August 6, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Akira Nishijima, Michito Nakayama, Atsushi Hashimoto, Takaya Umehara, Shuya Nambu, Hiroaki Miyazaki
  • Patent number: 10371772
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes a gradient magnetic field power supply, a voltmeter, and processing circuitry. The gradient magnetic field power supply includes an amplifier amplifying an input signal based on information of a gradient magnetic field waveform and outputting the amplified input signal to a gradient coil, a power supply device supplying power to the amplifier, and a capacitor bank supplying power, together with the power supply device, to the amplifier. The voltmeter measures a voltage of the capacitor bank. The processing circuitry calculates frequency characteristics of an impedance of the gradient coil, based on a voltage variation of the capacitor bank which was measured by the voltmeter, and controls imaging in accordance with the calculated frequency characteristics.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 6, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Sho Kawajiri, Motohiro Miura, Naoyuki Furudate, Yutaka Machii
  • Publication number: 20190236763
    Abstract: A method and apparatus is provided generate a display image that optimize a tradeoff between resolution and noise by using blending weights/ratio based on the content/context of the image. The blending weights control the relative weights when combining multiple computed tomography (CT) images having different degrees of smoothing/denoising to generate a display image having the optimal tradeoff lying within the continuum between/among the CT images. The blending weights are automated based on information indicating the content/context of the display image (e.g., the segmented tissue type, average attenuation, and the display setting such as window width and window level). Thus, indicia indicating content/context of the image determine the weighting coefficients, which are used in a weighted sum, e.g., to combine the plurality of images with different noise/smoothing parameters into a single blended image, which is displayed.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 1, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Chung Chan, Zhou Yu, Jian Zhou
  • Publication number: 20190235037
    Abstract: An image reconstructing method includes: obtaining pieces of first k-space data acquired from a patient, first acquisition times corresponding to the pieces of first k-space data, and pieces of biological signal information of the patient in a time series, the pieces of first k-space data being sampled with time-varying undersampling pattern; generating pieces of second k-space data by inverse transforming an intermediate data which is generated by transforming the pieces of first k-space data, the pieces of second k-space data is a data that at least part of the undersampled point is filled; generating a pseudo second acquisition time of each of the pieces of second k-space data, based on the first acquisition times; performing a rearranging process on the pieces of second k-space data, based on the second acquisition times and the pieces of biological signal information; and generating images by performing a reconstructing process on the pieces of second k-space data resulting from the rearranging process.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masaaki NAGASHIMA
  • Publication number: 20190227140
    Abstract: A magnetic resonance imaging system includes an array radiofrequency coil and processing circuitry operatively linked to the array radiofrequency coil and configured to receive output signals from the array radiofrequency coil commensurate with a simultaneous multi-slice magnetic imaging characterized by simultaneous multi-slice parameters, estimate distorted regions of the image volume using either data obtained via a pre-scan or a pre-computed model, minimize overlap of the distorted regions with image voxels representing tissue to obtain optimized values of the simultaneous multi-slice parameters, configuring and executing the simultaneous multi-slice imaging sequence based on the optimized values of the simultaneous multi-slice parameters, and reconstruct simultaneous multi-slice images with minimized artifacts.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Anuj Sharma, Andrew J. Wheaton
  • Publication number: 20190223742
    Abstract: According to one embodiment, an electrocardiographic (ECG) waveform timing detector includes an ECG waveform receiving circuit, a threshold value determining circuit, and a comparator. The threshold value determining circuit includes a heart rate calculating circuit, a threshold value setting circuit, and a comparing/determining circuit. The heart rate calculating circuit calculates the heart rate based on ECG waveform received by the ECG waveform receiving circuit. The threshold value setting circuit sets a threshold value. The comparing/determining circuit compares the heart rate with the number of R wave detection triggers detected using the threshold value to determine a threshold value for R wave detection trigger. The comparator compares the ECG waveform output from the ECG waveform receiving circuit with the threshold value for R wave detection trigger to output an R wave detection trigger.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 25, 2019
    Applicant: Canon Medical Systems Corporation
    Inventor: Koichi MORIKAWA
  • Patent number: 10359519
    Abstract: A nuclear medicine diagnostic apparatus according to an embodiment includes a scintillator configured to be formed of a single crystal and convert a gamma ray into light; a plurality of photodetectors configured to be arranged on different faces or tangents of the scintillator and each of which is configured to output an electric signal in response to incidence of the light resulting from the converting by the scintillator; storage circuitry configured to store, in advance, correspondence information in which each position in the scintillator is associated with a first intensity distribution indicating intensities of the electric signals that are output by the respective photodetectors; and specifying circuitry configured to specify a conversion position in which the gamma ray that is emitted from the subject is converted into the light in the scintillator by using the correspondence information and a second intensity distribution indicating the intensities of the electric signals.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 23, 2019
    Assignee: Canon Medical Systems Corporation
    Inventor: Manabu Teshigawara
  • Patent number: D855185
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 30, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Shianwei Chang, Noriaki Baba