Patents Assigned to PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO., LTD.
  • Publication number: 20210345889
    Abstract: A blood vessel cross-section function, a blood vessel pressure difference, and blood vessel stress may be established. A method for establishing a blood vessel cross-section function may include: obtaining image data in at least one cardiac cycle; selecting multiple feature times during the one cardiac cycle; generating spatial models of a target region blood vessel corresponding to each of the feature times according to the image data; establishing a first cross-section model of the target region blood vessel at each position along an axial direction of the target region blood vessel according to each of the spatial models; and establishing a corresponding first cross-section function according to each first cross-section model. Actual conditions of blood vessels may be reflected more accurately, and may provide an intermediate variable with less error for subsequent analysis operations, so that the later calculated value is closer to the actual value.
    Type: Application
    Filed: February 28, 2019
    Publication date: November 11, 2021
    Applicant: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO. LTD.
    Inventors: Shengxian TU, Jiayue HUANG, Jingfeng HAN
  • Publication number: 20210298706
    Abstract: The present invention relates to a blood vessel image processing method, a blood vessel image processing apparatus, a computer storage medium, and an imaging device. The method includes: obtaining blood vessel geometric structure information of a blood vessel segment of interest; obtaining vital feature information of the blood vessel segment; establishing an association relationship between the blood vessel geometric structure information and the vital feature information; and displaying the blood vessel geometric structure information and the vital feature information in the same image in a mutual fusion manner by using the association relationship as a reference. In this way, work efficiency of users can be improved by the solution.
    Type: Application
    Filed: September 3, 2018
    Publication date: September 30, 2021
    Applicant: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO. LTD.
    Inventors: Shengxian TU, Wei YU, Jiayue HUANG, Su ZHANG, Xiaogang FU
  • Patent number: 11064897
    Abstract: A method for computing fractional flow reserve (FFR), including receiving geometrical parameters of a blood vessel segment including a proximal end and a distal end, the geometrical parameters including a first geometrical parameter, a second geometrical parameter and a third geometrical parameter; and with the proximal end as a reference point, deriving a reference lumen diameter function and a geometrical parameter difference function based on the geometrical parameters and the distance from the position along the segment of blood vessel to the reference point. Derivatives of the geometrical parameter difference function are calculated in multiple scales. FFR is computed as a ratio of a second blood flow pressure at the first location of the blood vessel to a first blood flow pressure at the proximal end of the segment based on the multiple scales of derivative difference functions and the maximum mean blood flow velocity.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 20, 2021
    Assignee: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO., LTD
    Inventors: Shengxian Tu, Miao Chu, Bing Liu, Yazhu Chen
  • Patent number: 10617473
    Abstract: A system for estimating post-virtual stenting fractional flow reserve (FFR) capable of: receiving geometrical parameters of a blood vessel segment, the geometrical parameters comprising first, second and third geometrical parameters; with a proximal end as a reference point, deriving a reference lumen diameter function and calculating a pre-virtual stenting percent diameter stenosis based on the above geometrical parameters and the distance from position along the segment to the reference point; receiving a virtual stenting location; calculating a geometrical parameter of a virtual lumen of the post virtually-stented segment, deriving a post-virtual stenting geometrical parameter difference function and calculating a percent diameter stenosis based on the third geometrical parameter, the virtual stenting location and the reference lumen diameter function; taking derivative difference functions of the post-virtual stenting geometrical parameter difference function in multiple scales; and obtaining FFR based on
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 14, 2020
    Assignee: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO., LTD
    Inventors: Shengxian Tu, Miao Chu, Bo Xu, Bing Liu, Yazhu Chen
  • Publication number: 20180344173
    Abstract: A method for computing fractional flow reserve (FFR), comprising: receiving geometrical parameters of a blood vessel segment comprising a proximal end and a distal end, the geometrical parameters comprising a first geometrical parameter, a second geometrical parameter and a third geometrical parameter; and with the proximal end as a reference point, deriving a reference lumen diameter function and a geometrical parameter difference function based on the geometrical parameters and the distance from the position along the segment of blood vessel to the reference point. Derivatives of the geometrical parameter difference function are calculated in multiple scales. A maximum mean blood flow velocity of the segment is obtained, and FFR is computed as a ratio of a second blood flow pressure at the first location of the blood vessel to a first blood flow pressure at the proximal end of the segment based on the multiple scales of derivative difference functions and the maximum mean blood flow velocity.
    Type: Application
    Filed: November 4, 2016
    Publication date: December 6, 2018
    Applicant: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Shengxian TU, Miao CHU, Bing LIU, Yazhu CHEN
  • Patent number: D938464
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 14, 2021
    Assignee: Pulse Medical Imaging Technology (Shanghai) Co. Ltd.
    Inventors: Shengxian Tu, Jun Pu, Xinkai Qu
  • Patent number: D967160
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: October 18, 2022
    Assignee: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO. LTD.
    Inventors: Shengxian Tu, Jingfeng Han, Qizhi Lai, Xiaogang Fu