Patents by Inventor Liyan Li

Liyan Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12285335
    Abstract: A split type precisely-anchorable transcatheter aortic valve system comprises a split transcatheter aortic valve anchoring stent (10) and a transcatheter artificial biological aortic valve (20), wherein the shape and structure of the transcatheter aortic valve anchoring stent (10) are matched with the real structure of the aortic valve after the patient's image data is subjected to three-dimensional reconstruction, the transcatheter aortic valve anchoring stent (10) is delivered to the aortic valve position of the patient to be released, deformed and combined with the aortic valve leaflet tissue and the subvalvular tissue of the patient; the transcatheter artificial biological aortic valve (20) is delivered into the transcatheter aortic valve anchoring stent (10) to be released, the valve stent is deformed to expand the valve to the functional state, the transcatheter aortic valve anchoring stent (10) is deformed again and combined with the expanded transcatheter artificial biological aortic valve (20), and m
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: April 29, 2025
    Assignee: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Lei Jin, Xiangbin Pan, Jia Wu, Liyan Li, Zhihao Fan, Kangjian Wu
  • Patent number: 12268594
    Abstract: A split type precisely-anchorable transcatheter mitral valve system comprises a split transcatheter mitral valve anchoring stent (10) and a transcatheter artificial biological mitral valve (20), wherein the shape and structure of the transcatheter mitral valve anchoring stent (10) are matched with the mitral valve real structure after the patient image data is subjected to three-dimensional reconstruction, the transcatheter mitral valve anchoring stent (10) is firstly delivered to the mitral valve position of the patient to be released and deformed, and the transcatheter artificial biological mitral valve (20) is in personalized precise alignment and coaptation with tissues on the mitral valve position of the patient and under the petals; the transcatheter artificial biological mitral valve (20) is delivered into the transcatheter mitral valve anchoring stent (10) to be released, the transcatheter artificial biological mitral valve (20) is released and deformed and expanded to a functional state, the transcat
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: April 8, 2025
    Assignees: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD., WEST CHINA HOSPITAL OF SICHUAN UNIVERSITY
    Inventors: Lei Jin, Yingqiang Guo, Jia Wu, Liyan Li, Hong Mu, Kangjian Wu, Zhihao Fan
  • Publication number: 20250107888
    Abstract: A split type precisely-anchorable transcatheter valve-in-ring system comprises a split transcatheter valve-in-ring anchoring stent (10) and a transcatheter artificial biological valve-in-ring (20), wherein the shape and structure of the transcatheter valve-in-ring anchoring stent (10) are matched with the real structure of the annuloplasty ring and supravalvular and infravalvular tissues after three-dimensional reconstruction based on imaging data of a patient who have undergone valve failure after implantation of a annuloplasty ring (30), the transcatheter valve-in-ring anchoring stent (10) is firstly delivered to the patient's failed annuloplasty ring for release, deformation and alignment with the supravalvular and infravalvular tissues of the failed annuloplasty ring; the transcatheter artificial biological valve-in-ring (20) is delivered to the transcatheter valve-in-ring anchoring stent (10) for release, the stent of the transcatheter artificial biological valve-in-ring (20) deforms and expands to the f
    Type: Application
    Filed: November 17, 2022
    Publication date: April 3, 2025
    Applicant: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Lei JIN, Lai WEI, Kangjian WU, Jia WU, Zhihao FAN, Liyan LI
  • Publication number: 20250041057
    Abstract: The split type precisely-anchorable transcatheter tricuspid valve system comprises a split transcatheter tricuspid valve anchoring stent (10) and a transcatheter artificial biological tricuspid valve (20), wherein the shape and structure of the transcatheter tricuspid valve anchoring stent (10) are matched with the tricuspid valve real structure after the patient's image data is subjected to three-dimensional reconstruction, the transcatheter tricuspid valve anchoring stent (10) is firstly delivered to the tricuspid valve site of the patient to be released, deformed and personalized and precise alignment with a supravalvular (40) and subvalvular (50) tissue of the patient's tricuspid valve site; the transcatheter artificial biological tricuspid valve (20) is delivered into the transcatheter tricuspid valve anchoring stent (10) to be released, and the transcatheter artificial biological tricuspid valve (20) is released and deformed and expanded to a functional state, the transcatheter tricuspid valve anchoring
    Type: Application
    Filed: November 17, 2022
    Publication date: February 6, 2025
    Applicant: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Lei JIN, Huanlei HUANG, Zhenzhong WANG, Liyan LI, Zhihao FAN, Hong MU, Jia WU, Kangjian WU
  • Publication number: 20250032252
    Abstract: A split type precisely-anchorable transcatheter aortic valve system comprises a split transcatheter aortic valve anchoring stent (10) and a transcatheter artificial biological aortic valve (20), wherein the shape and structure of the transcatheter aortic valve anchoring stent (10) are matched with the real structure of the aortic valve after the patient's image data is subjected to three-dimensional reconstruction, the transcatheter aortic valve anchoring stent (10) is delivered to the aortic valve position of the patient to be released, deformed and combined with the aortic valve leaflet tissue and the subvalvular tissue of the patient; the transcatheter artificial biological aortic valve (20) is delivered into the transcatheter aortic valve anchoring stent (10) to be released, the valve stent is deformed to expand the valve to the functional state, the transcatheter aortic valve anchoring stent (10) is deformed again and combined with the expanded transcatheter artificial biological aortic valve (20), and m
    Type: Application
    Filed: November 17, 2022
    Publication date: January 30, 2025
    Applicant: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Lei JIN, Xiangbin PAN, Jia WU, Liyan LI, Zhihao FAN, Kangjian WU
  • Publication number: 20250009500
    Abstract: A split type precisely-anchorable transcatheter mitral valve system comprises a split transcatheter mitral valve anchoring stent (10) and a transcatheter artificial biological mitral valve (20), wherein the shape and structure of the transcatheter mitral valve anchoring stent (10) are matched with the mitral valve real structure after the patient image data is subjected to three-dimensional reconstruction, the transcatheter mitral valve anchoring stent (10) is firstly delivered to the mitral valve position of the patient to be released and deformed, and the transcatheter artificial biological mitral valve (20) is in personalized precise alignment and coaptation with tissues on the mitral valve position of the patient and under the petals; the transcatheter artificial biological mitral valve (20) is delivered into the transcatheter mitral valve anchoring stent (10) to be released, the transcatheter artificial biological mitral valve (20) is released and deformed and expanded to a functional state, the transcat
    Type: Application
    Filed: November 17, 2022
    Publication date: January 9, 2025
    Applicants: BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD., WEST CHINA OF SICHUAN UNIVERSITY
    Inventors: Lei JIN, Yingqiang GUO, Jia WU, Liyan LI, Hong MU, Kangjian WU, Zhihao FAN
  • Patent number: 11927687
    Abstract: A centralized cooperative positioning method includes: caching measurements of nodes in multiple time slices up to the current time slice; calculating location information of the nodes in the multiple time slices to obtain trajectory of the nodes in the multiple time slices; performing initial state estimations of the nodes based on measurements of a single time slice; and using the initial state estimations as initial solution values, performing the joint time-space processing on the measurements of the nodes in the multiple time slices based on trajectory constraints, to obtain a state estimation of each node at the current time slice, in which the state estimation includes an estimated value of a location of the node.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: March 12, 2024
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Chengfei Fan, Liyan Li, Yunlong Cai, Minjian Zhao, Xinglong Xu
  • Patent number: 11742910
    Abstract: A multi-user uplink and downlink beam alignment method for asymmetric millimeter wave large-scale MIMO includes constructing an all-digital multi-directional beam for multiple-direction probing; performing multiple rounds of downlink beam training from the base station to the UE; controlling the UE to perform a beam decision according to the receiving signals, and determining a target downlink sending-receiving beam pair; performing data processing on the receiving signals to generate training data for predicting an uplink sending narrow beam, and performing training on a preset neural network; performing online real-time signal detection based on the trained network parameters and the receiving signals to predict a target uplink sending narrow beam; and controlling the UE to feedback an index of a target downlink sending narrow beam to the base station, and widening the target downlink sending narrow beam into a target uplink receiving beam according to the feedback index.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: August 29, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Yongcheng Liu, Min Li, Minjian Zhao, Liyan Li, Jiayu Zhang
  • Publication number: 20230188185
    Abstract: A multi-user uplink and downlink beam alignment method for asymmetric millimeter wave large-scale MIMO includes constructing an all-digital multi-directional beam for multiple-direction probing; performing multiple rounds of downlink beam training from the base station to the UE; controlling the UE to perform a beam decision according to the receiving signals, and determining a target downlink sending-receiving beam pair; performing data processing on the receiving signals to generate training data for predicting an uplink sending narrow beam, and performing training on a preset neural network; performing online real-time signal detection based on the trained network parameters and the receiving signals to predict a target uplink sending narrow beam; and controlling the UE to feedback an index of a target downlink sending narrow beam to the base station, and widening the target downlink sending narrow beam into a target uplink receiving beam according to the feedback index.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 15, 2023
    Inventors: Yongcheng LIU, Min LI, Minjian ZHAO, Liyan LI, Jiayu ZHANG
  • Publication number: 20220197437
    Abstract: A touch panel and a method for forming a touch panel, a touch module and a touch display panel are provided. The touch panel includes a substrate including a touch area and a bonding area located at one side of the touch area; a plurality of touch electrodes located in the touch area; a plurality of touch leads connected with the plurality of touch electrodes in a one-to-one correspondence and extending to the bonding area; a plurality of ultraviolet light-emitting modules located in the touch area; and a plurality of light-emitting leads electrically connected with the plurality of ultraviolet light-emitting module in a one-to-one correspondence and extending to the bonding area.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 23, 2022
    Inventors: Liyan LI, Lu YAO, Feng QIN
  • Patent number: 11360630
    Abstract: A touch panel and a method for forming a touch panel, a touch module and a touch display panel are provided. The touch panel includes a substrate including a touch area and a bonding area located at one side of the touch area; a plurality of touch electrodes located in the touch area; a plurality of touch leads connected with the plurality of touch electrodes in a one-to-one correspondence and extending to the bonding area; a plurality of ultraviolet light-emitting modules located in the touch area; and a plurality of light-emitting leads electrically connected with the plurality of ultraviolet light-emitting module in a one-to-one correspondence and extending to the bonding area.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: June 14, 2022
    Assignee: Shanghai AVIC OPTO Electronics Co., Ltd.
    Inventors: Liyan Li, Lu Yao, Feng Qin
  • Publication number: 20220050167
    Abstract: A centralized cooperative positioning method includes: caching measurements of nodes in multiple time slices up to the current time slice; calculating location information of the nodes in the multiple time slices to obtain trajectory of the nodes in the multiple time slices; performing initial state estimations of the nodes based on measurements of a single time slice; and using the initial state estimations as initial solution values, performing the joint time-space processing on the measurements of the nodes in the multiple time slices based on trajectory constraints, to obtain a state estimation of each node at the current time slice, in which the state estimation includes an estimated value of a location of the node.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Chengfei FAN, Liyan LI, Yunlong CAI, Minjian ZHAO, Xinglong XU
  • Patent number: 11109342
    Abstract: The present disclosure provides a method and an electronic device for obtaining location information. Available measurement of a target node and multi-hop nodes in multiple consecutive time slices is obtained. A prediction is performed on the unavailable measurement due to the transmission delay to obtain prediction information. Location information of these nodes in the multiple time slices is obtained based on state variables of the target node and multi-hop nodes in the current time slice and mobility constraints, for reconstructing the trajectory information of these nodes. State information of these nodes in the current time slice is initially estimated based on available measurement to obtain initial state estimation in the current time slice. State estimation of these nodes in the current time slice is obtained by jointly processing the available measurement and the prediction information based on the trajectory constraints and the initial state estimation.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: August 31, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Chengfei Fan, Liyan Li, Yunlong Cai, Minjian Zhao, Xinglong Xu
  • Publication number: 20210153161
    Abstract: The present disclosure provides a method and an electronic device for obtaining location information. Available measurement of a target node and multi-hop nodes in multiple consecutive time slices is obtained. A prediction is performed on the unavailable measurement due to the transmission delay to obtain prediction information. Location information of these nodes in the multiple time slices is obtained based on state variables of the target node and multi-hop nodes in the current time slice and mobility constraints, for reconstructing the trajectory information of these nodes. State information of these nodes in the current time slice is initially estimated based on available measurement to obtain initial state estimation in the current time slice. State estimation of these nodes in the current time slice is obtained by jointly processing the available measurement and the prediction information based on the trajectory constraints and the initial state estimation.
    Type: Application
    Filed: January 25, 2021
    Publication date: May 20, 2021
    Inventors: Chengfei Fan, Liyan Li, Yunlong Cai, Minjian Zhao, Xinglong Xu