公开(公告)号：US20230112017A1

公开(公告)日：2023-04-13

申请号：US17960812

申请日：2022-10-05

Applicant: Boston Scientific Scimed, Inc.

Inventor： Erik Stephen Freed ,  Anming He Cai ,  Matthew R. Huston ,  Jennifer Gibbs ,  Jessica D. Morlock ,  Heather Drury ,  Wenguang Li

IPC: A61B8/12 ,  A61B5/02

Abstract: Systems and methods for automatic lesion assessment and/or processing imaging data are disclosed. An example intravascular imaging system may include a catheter including an imaging device. A processor may be coupled to the catheter. The processor may be configured to process imaging data received from the imaging device. The processor may be configured to generate a longitudinal section view of a blood vessel from the imaging data received from the imaging device. The processor may be configured to identify a minimum lumen area along the longitudinal section view of the blood vessel, a distal reference point, and a proximal reference. A display unit may be coupled to the processor. The display unit may be configured to show a display including the longitudinal section view of the blood vessel.

公开(公告)号：US11564581B2

公开(公告)日：2023-01-31

申请号：US16047763

申请日：2018-07-27

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Wenguang Li

IPC: A61B5/026 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/02

Abstract: Systems for determining fractional flow reserve are disclosed. An example system may include a pressure sensing guidewire for measuring a first pressure, a second pressure sensing medical device for measuring a second pressure, and a processor coupled to the pressure sensing guidewire and coupled to the second pressure sensing medical device. The processor may be designed to generate a plot of the magnitude of the second pressure over time, identify one or more time intervals of the plot that have a slope less than zero, determine a mean of the second pressure, and calculate the ratio of the first pressure to the second pressure when (a) the second pressure is less than or equal to the mean of the second pressure and (b) during the one or more time intervals when the slope of the plot is less than zero.

公开(公告)号：US20150073279A1

公开(公告)日：2015-03-12

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: A61B8/08 ,  A61B8/00

CPC classification number: A61B8/5207 ,  A61B8/085 ,  A61B8/0891 ,  A61B8/12 ,  A61B8/461 ,  A61B8/463 ,  A61B8/466 ,  A61B8/5223 ,  A61B8/5238

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.

Abstract translation: 在血管内超声（IVUS）成像过程中实时显示横截面图像的方法包括在血管内超声成像过程期间，当至少一个换能器旋转和移动时，在导管中从至少一个换能器接收电信号 纵向沿着病人血管的内腔; 在血管内超声成像过程中，处理所接收的电信号以形成沿着所述内腔的长度彼此纵向偏移的一系列横截面图像; 在血管内超声成像过程中，同时显示i）最新图像，以及ii）由操作者选择的先前图像，或b）被自动选择为具有选定图像特征的最大值或最小值; 并且在血管内超声成像过程中，处理来自该系列横截面图像的最新图像的显示作为新图像。