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公开(公告)号：US20240221366A1
公开(公告)日：2024-07-04
申请号：US18606892
申请日：2024-03-15
IPC分类号： G06V10/774 , A61B1/00 , G06V10/26 , G06V10/44 , G06V10/764
CPC分类号： G06V10/774 , A61B1/000096 , G06V10/267 , G06V10/457 , G06V10/764 , G06V2201/03
摘要： A learning model generation method for generating a learning model that aids understanding of an image acquired with an image-acquiring catheter. The learning model generation method includes: creating a division line that divides a lumen region into a first region into which the image-acquiring catheter is inserted and a second region reaching an edge of a two-dimensional image, when it is determined that the lumen region reaches an edge of the two-dimensional image; creating second classification data in which a probability of being the lumen region and a probability of being an extra-luminal region are allocated; recording the two-dimensional image associated with the second classification data in a training database; and generating a learning model that outputs third classification data in which an input two-dimensional image is classified into a plurality of regions including a living tissue region, the lumen region, and an extra-luminal region, by machine learning.
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2.发明公开公开(公告)号：US20240108313A1
公开(公告)日：2024-04-04
申请号：US18476513
申请日：2023-09-28
发明人： Yasukazu SAKAMOTO , Shunsuke YOSHIZAWA , Clément JACQUET , Stephen TCHEN , Hector PITEAU , Edgar BAUCHER , Thomas HENN , Ryosuke SAGA
CPC分类号： A61B8/483 , A61B8/0858 , A61B8/466
摘要： An image processing device includes: a control unit configured to acquire a cross-sectional image obtained using a sensor configured to move in a lumen of a biological tissue for each position in a movement direction of the sensor, analyze the acquired cross-sectional image to calculate a centroid position of a cross section of the lumen in the cross-sectional image, and execute smoothing on a calculation result obtained for a plurality of positions in the movement direction of the sensor, and evaluate a difference between the calculated centroid position and a centroid position obtained as a result of the smoothing for each position in the movement direction of the sensor, thereby deriving a pulsation score representing expansion and contraction of the lumen in the acquired cross-sectional image by a numerical value.
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公开(公告)号：US20230260120A1
公开(公告)日：2023-08-17
申请号：US18190257
申请日：2023-03-27
发明人： Yasukazu SAKAMOTO , Katsuhiko SHIMIZU , Hiroyuki ISHIHARA , Shunsuke YOSHIZAWA , Thomas HENN , Clément JACQUET , Stephen TCHEN , Ryosuke SAGA
IPC分类号： G06T7/00 , G06V10/25 , G06V10/764 , G16H30/20
CPC分类号： G06T7/0012 , G06V10/25 , G06V10/764 , G16H30/20 , G06T2207/30021
摘要： An information processing device that assists understanding of an image acquired by an image acquisition catheter. The information processing device includes: an image acquisition unit that acquires a catheter image including an inner cavity obtained by an image acquisition catheter; a position information acquisition unit that acquires position information regarding a position of a medical instrument inserted into the inner cavity included in the catheter image; and a first data output unit that inputs the acquired catheter image and the acquired position information to a first trained model that, upon receiving input of the catheter image and the position information, outputs first data in which each region of the catheter image is classified into at least three of a biological tissue region, a medical instrument region where the medical instrument exists, and a non-biological tissue region, and outputs the first data.
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4.发明申请公开(公告)号：US20220218309A1
公开(公告)日：2022-07-14
申请号：US17708460
申请日：2022-03-30
发明人： Yasukazu SAKAMOTO , Katsuhiko SHIMIZU , Hiroyuki ISHIHARA , Clément JACQUET , Thomas HENN , Nuwan HERATH , Iselin ERIKSSEN , Ryosuke SAGA
摘要： A diagnostic assistance device is a diagnostic assistance device configured to generate three-dimensional data of a biological tissue inserted with a catheter based on tomographic data of the biological tissue, and display the generated three-dimensional data as a three-dimensional image on a display. The diagnostic assistance device includes: a control unit configured to specify a point of the biological tissue with which a distal end of the catheter is in contact as a contact point in the three-dimensional data, and set a color of a voxel corresponding to the contact point to a predetermined color in the three-dimensional image.
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公开(公告)号：US20200008887A1
公开(公告)日：2020-01-09
申请号：US16577453
申请日：2019-09-20
摘要： Provided is a medical device including: a first elongated body; an electrode that is fixed to the annular expansion portion of the first elongated body; a second elongated body that has a distal portion and a proximal portion, a first lumen communicating from the distal portion to the proximal portion, and a second lumen parallel to the first lumen at the distal portion; and an ultrasound element that is configured to move inside the first lumen of the second elongated body in an axial direction, in which the first elongated body is inserted into the second lumen, and the linear portion of the first elongated body is positioned in a direction orthogonal to the axial direction of the ultrasound element, and the ultrasound element receives ultrasound reflected from the first elongated body and ultrasound reflected from a body-cavity around the second elongated body.
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6.发明公开公开(公告)号：US20240016474A1
公开(公告)日：2024-01-18
申请号：US18473370
申请日：2023-09-25
IPC分类号： A61B8/00
CPC分类号： A61B8/4254 , A61B8/463
摘要： An image processing device is an image processing device that displays an image representing a biological tissue on a display and displays an element representing a position of a sensor on a screen same as the image on the display, based on tomographic data acquired by the sensor moving in a lumen of the biological tissue, the image processing device including a control unit that, when a user operation of specifying a movement destination of the sensor is performed on the screen, controls movement of the sensor according to the user operation, and changes a relative position of the element to cause a position of the sensor after movement to be represented.
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7.发明公开公开(公告)号：US20230245306A1
公开(公告)日：2023-08-03
申请号：US18190510
申请日：2023-03-27
发明人： Yasukazu SAKAMOTO , Katsuhiko SHIMIZU , Hiroyuki ISHIHARA , Clément JACQUET , Stephen TCHEN , Thomas HENN , Ryosuke SAGA
CPC分类号： G06T7/0012 , G06F3/14 , G06T15/00 , G06V10/56 , G06T2207/10024 , G06T2207/10072 , G06T2207/30024
摘要： An image processing device for generating and updating three-dimensional data representing a biological tissue based on tomographic data of the biological tissue acquired by a sensor that acquires the tomographic data while moving through a lumen of the biological tissue, and causing a display to display the three-dimensional data as a three-dimensional image includes: a control unit configured to color, in the three-dimensional image, at least a voxel representing an inner surface of the biological tissue or a voxel that is adjacent to the voxel representing the inner surface and that represents the lumen among a first voxel group corresponding to a cross section indicated by tomographic data newly acquired by the sensor, in a manner of being distinguished from a second voxel group corresponding to another cross section of the biological tissue.
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8.发明申请公开(公告)号：US20230025720A1
公开(公告)日：2023-01-26
申请号：US17937063
申请日：2022-09-30
发明人： Yasukazu SAKAMOTO , Katsuhiko SHIMIZU , Hiroyuki ISHIHARA , Clément JACQUET , Thomas HENN , Stephen TCHEN , Ryosuke SAGA
摘要： An image processing device is an image processing device configured to cause a display to display three-dimensional data as a three-dimensional image, the three-dimensional data representing a biological tissue. The image processing device includes: a control unit configured to detect a series of positions of a catheter inserted into the biological tissue from data obtained in time series by a sensor observing the surrounding of a lumen of the biological tissue while moving in the lumen, and to switch a display mode between a first mode for displaying a first figure representing the series of positions in the three-dimensional image, and a second mode for displaying a second figure representing one position among the series of positions in the three-dimensional image.
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9.发明申请公开(公告)号：US20220218304A1
公开(公告)日：2022-07-14
申请号：US17708452
申请日：2022-03-30
发明人： Yasukazu SAKAMOTO , Katsuhiko SHIMIZU , Hiroyuki ISHIHARA , Clément JACQUET , Thomas HENN , Nuwan HERATH , Iselin ERIKSSEN , Ryosuke SAGA
摘要： A diagnostic assistance device is a diagnostic assistance device configured to generate three-dimensional data of a biological tissue based on tomographic data of the biological tissue, and display the generated three-dimensional data as a three-dimensional image on a display. The diagnostic assistance device includes a control unit configured to form, in the three-dimensional data, an opening that exposes an inner wall surface of the biological tissue to an outside of the biological tissue in the three-dimensional image, and adjust a viewpoint when displaying the three-dimensional image on the display according to a position of the formed opening.
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公开(公告)号：US20210007580A1
公开(公告)日：2021-01-14
申请号：US17037019
申请日：2020-09-29
IPC分类号： A61B1/00
摘要： An imaging device capable of acquiring images of an internal structure of a living body highly accurately in a wide range. An imaging device has a first housing to which a proximal portion of an outer sheath is fixed, with a drive shaft for driving a imaging unit and an inner sheath extending through the first housing, and a second housing to which a proximal portion of the inner sheath is fixed and which holds the drive shaft rotatably therein. The first housing has a first port held in fluid communication with an inner lumen of the outer sheath, and the second housing is movable toward and away from the first housing. The imaging device also includes a first gap between the inner sheath and the outer sheath and a second gap between the inner sheath and the drive shaft.
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