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    Systems and methods for selection and displaying of images using an intravascular ultrasound imaging system
    2.
    发明授权
    Systems and methods for selection and displaying of images using an intravascular ultrasound imaging system 有权

    公开(公告)号：US10561401B2

    公开(公告)日：2020-02-18

    申请号：US14483998

    申请日：2014-09-11

    Applicant: Boston Scientific SciMed, Inc.

    Inventor： Anming He Cai ,  Wenguang Li ,  Lewis Jones Thomas, III

    IPC: A61B8/00 ,  A61B8/12 ,  A61B8/08

    Abstract: A method for real-time displaying of cross-sectional images during an intravascular ultrasound (IVUS) imaging procedure includes, during an intravascular ultrasound imaging procedure, receiving electrical signals from at least one transducer in a catheter as the at least one transducer rotates and moves longitudinally along a lumen of a patient blood vessel; during the intravascular ultrasound imaging procedure, processing the received electrical signals to form a series of cross-sectional images that are longitudinally-offset from one another along a length of the lumen; during the intravascular ultrasound imaging procedure, concurrently displaying i) a most recent image and ii) a previous image that is either a) selected by the operator or b) automatically selected as having a maximum or minimum of a selected image characteristic; and, during the intravascular ultrasound imaging procedure, updating the display of the most recent image as a new image from the series of cross-sectional images is processed.

    SYSTEMS AND METHODS FOR LUMEN BORDER DETECTION IN INTRAVASCULAR ULTRASOUND SEQUENCES
    3.
    发明申请
    SYSTEMS AND METHODS FOR LUMEN BORDER DETECTION IN INTRAVASCULAR ULTRASOUND SEQUENCES 审中-公开
    血管内超声检查序列中的边界检测系统与方法

    公开(公告)号：US20140249423A1

    公开(公告)日：2014-09-04

    申请号：US14193574

    申请日：2014-02-28

    Applicant: Boston Scientific SciMed, Inc.

    Inventor： Anming He Cai ,  Wenguang Li ,  Shashidhar Sathyanarayana ,  Lewis Jones Thomas, III

    IPC: A61B8/08 ,  A61B8/12

    CPC classification number: A61B8/5223 ,  A61B8/0891 ,  A61B8/12 ,  G06T7/0012 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/10136 ,  G06T2207/20076 ,  G06T2207/20104 ,  G06T2207/30101 ,  G06T2207/30104

    Abstract: A method for processing a sequence of ultrasound frames for display includes receiving a sequence of intravascular ultrasound (IVUS) frames of a vessel having a lumen, the sequence including a first frame and a second frame; determining one or more texture features for each of one or more regions of the first frame; determining at least one flow feature for each of the one or more regions by comparing the first and second frames; deriving a lumen border for the first frame using the one or more texture features and the at least one flow feature to characterize the one or more regions as within or outside of the lumen of the vessel; and displaying an ultrasound image of the first frame with the lumen border.

    Abstract translation: 用于处理用于显示的超声波帧序列的方法包括：接收具有内腔的血管的血管内超声（IVUS）帧序列，所述序列包括第一帧和第二帧; 确定所述第一帧的一个或多个区域中的每一个的一个或多个纹理特征; 通过比较所述第一和第二帧来确定所述一个或多个区域中的每一个的至少一个流特征; 使用所述一个或多个纹理特征和所述至少一个流动特征来导出所述第一框架的管腔边界以将所述一个或多个区域表征为在所述容器的内腔内或外部; 以及显示具有所述管腔边界的所述第一帧的超声图像。

    IMAGING DEVICES WITH AN ARRAY OF TRANSDUCERS AND METHODS OF MANUFACTURE AND USE
    4.
    发明申请
    IMAGING DEVICES WITH AN ARRAY OF TRANSDUCERS AND METHODS OF MANUFACTURE AND USE 有权
    具有变送器阵列的成像装置及其制造和使用方法

    公开(公告)号：US20140243679A1

    公开(公告)日：2014-08-28

    申请号：US14192205

    申请日：2014-02-27

    Applicant: Boston Scientific SciMed, Inc.

    Inventor： Lewis Jones Thomas, III ,  Wenguang Li ,  Anming He Cai

    IPC: A61B8/00

    CPC classification number: A61B8/4483 ,  A61B8/12 ,  A61B8/445 ,  G01S7/52077 ,  G01S15/8915 ,  G01S15/8927 ,  G01S15/8956 ,  G01S15/8997

    Abstract: A medical imaging assembly includes an elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.

    Abstract translation: 医疗成像组件包括在近端具有连接器的细长导管; 在导管的远端上的一组换能器; 导体，电耦合到换能器阵列并与导管的连接器电连通; 以及控制单元，其可耦合到导管，以通过导管的连接器在控制单元和换能器阵列之间发送和接收电信号。 所述控制单元具有执行指令的处理器，所述指令包括1）从所述传感器阵列中选择M个发射换能器的第一子集和N个接收换能器的第二子集，其中N> M; 和2）对于至少N个发射/接收周期中的每一个，a）引导M个发射换能器的第一子集发射声信号; 以及b）指示N个接收换能器的第二子集接收相应的回波信号。

    Methods for assessing a vessel with sequential physiological measurements
    5.
    发明授权
    Methods for assessing a vessel with sequential physiological measurements 有权

    公开(公告)号：US12268482B2

    公开(公告)日：2025-04-08

    申请号：US18138878

    申请日：2023-04-25

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Wenguang Li

    IPC: A61B5/0215 ,  A61B5/00 ,  A61B5/055 ,  A61B6/12 ,  A61B6/46

    Abstract: A method, device, and system for evaluating a vessel of a patient, and in particular the hemodynamic impact of a stenosis within the vessel of a patient. Proximal and distal pressure measurements are made using first and second instrument while the first instrument is moved longitudinally in the vessel and the second instrument remains in a fixed position. A series of pressure ratio values are calculated, and a pressure ratio curve is generated. The pressure ratio curve may be output to a display. One or more stepped change in the pressure ratio curve are identified using an Automatic Step Detection algorithm. An image is obtained showing the position of the first instrument within the vessel that corresponds to the identified stepped change. The image is registered to the identified stepped change in the pressure ratio curve. The image may be output to the display.

    BALLOON VALVULOPLASTY CATHETER WITH IVUS
    8.
    发明申请
    BALLOON VALVULOPLASTY CATHETER WITH IVUS 有权

    公开(公告)号：US20220226114A1

    公开(公告)日：2022-07-21

    申请号：US17568217

    申请日：2022-01-04

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Dongming Hou ,  Tim O'Connor ,  Wenguang Li ,  Anming He Cai

    IPC: A61F2/24 ,  A61B8/12 ,  A61B8/08 ,  A61M29/02

    Abstract: A balloon valvuloplasty catheter may include an elongate shaft having a guidewire lumen and a device lumen extending longitudinally therein, an expandable balloon secured to a distal portion of the elongate shaft, and an intravascular ultrasound catheter slidably disposed within the device lumen. The device lumen is in fluid communication with an interior of the expandable balloon. A method of preparing a native aortic heart valve of a patient's heart for transcatheter aortic valve replacement may include using the balloon valvuloplasty to observe via intravascular ultrasound and evaluate a position of the native leaflets relative to the left and right coronary artery ostia to determine if the native leaflets block the left coronary artery ostium and/or the right coronary artery ostium when the expandable balloon is inflated.

    SIDE BRANCH DETECTION FROM ANGIOGRAPHIC IMAGES
    9.
    发明申请
    SIDE BRANCH DETECTION FROM ANGIOGRAPHIC IMAGES 有权

    公开(公告)号：US20250117962A1

    公开(公告)日：2025-04-10

    申请号：US18903046

    申请日：2024-10-01

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Yan Li ,  Kevin Bloms ,  Wenguang Li

    IPC: G06T7/73 ,  G06T7/62 ,  G06V10/74

    Abstract: The present disclosure provides to generate a 3D visualization of a vessel from intravascular ultrasound (IVUS) images. In particular, the present disclosure provides to reduce jitter between frames of an IVUS recording to provide a smoother appearance of a longitudinal view of the vessel from the IVUS image frames and to construct a 3D visualization of the vessel from the jitter compensated IVUS image frames.

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