Patents by Inventor Xiaohong Zhou

Xiaohong Zhou 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: 11607550
    Abstract: A medical device is configured to sense a cardiac electrical signal and determine from the cardiac electrical signal at least one of a maximum peak amplitude of a positive slope of the cardiac electrical signal and a maximum peak time interval from a pacing pulse to the maximum peak amplitude. The device is configured to determine a capture type of the pacing pulse based on at least one or both of the maximum peak amplitude and the maximum peak time interval.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 21, 2023
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Wade M. Demmer, Maureen E. Lybarger, Elizabeth A. Mattson, Todd J. Sheldon, Zhongping Yang, Xiaohong Zhou
  • Publication number: 20230060821
    Abstract: In some examples, a method comprises sensing one or more left-ventricular activations via one or more electrodes of a left-ventricular lead, wherein each of the one or more left-ventricular activations are in response to delivery of an electrical stimulation to a heart of a patient; determining one or more left-ventricular activation metrics based on the sensed one or more left-ventricular activations; and determining whether the electrical stimulation provided conduction system pacing based on the one or more ventricular activation metrics.
    Type: Application
    Filed: July 1, 2022
    Publication date: March 2, 2023
    Inventor: Xiaohong Zhou
  • Publication number: 20230069697
    Abstract: Methods for forming a 3D memory device are provided. A method includes the following operations. A stack structure is formed in a staircase region and an array region. A dielectric material layer is formed over the array region and the staircase region. An etch mask layer is coated over the dielectric material layer. The etch mask layer, on a first surface away from the dielectric material layer, is planarized. The dielectric material layer and a remaining portion of the etch mask layer are etched to form a dielectric layer over the staircase region and the array region.
    Type: Application
    Filed: October 11, 2021
    Publication date: March 2, 2023
    Inventors: Yonggang Yang, Xiaohong Zhou
  • Publication number: 20230068131
    Abstract: A medical device system determines first values associated with a first plurality of patient parameters associated with arrhythmic substrate and/or physiological triggers for acute cardiac events based on a first one or more of the physiological signals generated during the period and determines, based on the first values associated with the first plurality of patient parameters, whether to assess alterations in cardiac cellular electrophysiology and/or mechanical alterations of the patient. The system may, in response to determining to assess the alterations in cardiac cellular electrophysiology, determine second values associated with a second plurality of patient parameters relating to cardiac electrophysiology based on a second one or more of the physiological signals generated during the period and determine whether to generate an alert indicating that an acute cardiac event of the patient is predicted based at least in part on the second values associated with the second plurality of patient parameters.
    Type: Application
    Filed: July 19, 2022
    Publication date: March 2, 2023
    Inventor: Xiaohong Zhou
  • Publication number: 20230051753
    Abstract: A solar cell superfine electrode transfer thin film is described. The electrode transfer thin film sequentially includes from bottom to top a substrate, a release layer, a resin layer and a hot melt adhesive layer; the resin layer is formed with electrode trenches therein; the electrode trenches are formed with electrodes therein; superfine conductive electrodes are continuously prepared on a transparent thin film via a roll-to-roll nanoimprinting method, the width of an electrode wire being 2 ?m-50 ?m, and the width of a typical line being 10 ?m-30 ?m. Directly attach the superfine electrodes of the hot melt adhesive layer to a solar cell by peeling off the substrate material, and sintering at a high temperature to volatilize the hot melt adhesive layer material while retaining the electrodes, thus the electrodes are integrally transferred, without poor local transfer.
    Type: Application
    Filed: October 18, 2022
    Publication date: February 16, 2023
    Inventors: Xiaohong Zhou, Zongbao Fang, Linsen Chen, Pengfei Zhu, Donglin Pu, Ximei Yin, Yunlong Zhao
  • Publication number: 20230005769
    Abstract: The present disclosure relates to an in-situ temperature control platform, including an independent sample holder, a sample holder fixing cartridge, a customized sample stage and an anode contact pin. The independent sample holder includes a sample loading spot and a sample holder grip. The sample holder fixing cartridge includes a fixing cartridge body, the fixing cartridge body is provided with a sample holder slot, the bottom surface of the sample holder slot is provided with a heating element slot, and the sample holder slot is aligned with the sample loading spot. The bottom surface of the heating element slot is provided with a heating element fixing pinhole. The customized sample stage includes a sample stage body, the sample stage body is provided with a heating element support, and the heating element support is provided with a heating element.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 5, 2023
    Applicant: SHANGHAITECH UNIVERSITY
    Inventors: YONG YANG, XIAOHONG ZHOU, EVGENY VOVK, JIAFENG ZHAO
  • Publication number: 20220406612
    Abstract: Methods for polishing dielectric layers using an auto-stop slurry in forming semiconductor devices, such as three-dimensional (3D) memory devices, are provided. The methods include forming a stack structure in a staircase region and a core array region, the stack structure including a staircase structure in the staircase region; forming a dielectric layer over the staircase region and a peripheral region outside the stack structure; and polishing the dielectric layer using an auto-stop slurry containing a ceria-based abrasive.
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Inventor: Xiaohong Zhou
  • Publication number: 20220397263
    Abstract: An LED panel light includes a flexible base film, a plurality of circuits arranged on the flexible base film and a plurality of LED lamp beads arranged on the flexible base film, each circuit is connected with at least one LED lamp bead and is provided with at least two mutually parallel conductive wires. The conductive wire consists of a plurality of secondary conductive wires, and a plurality of the secondary conductive wires form a mesh. A method of making a LED panel light includes the following specific steps: S1: providing a flexible base film; S2: manufacturing a plurality of mesh-type conductive wires on the flexible base film by using a mould with circuit patterns of LED panel light; conductive wires forming a circuit, and a plurality of the circuits forming an LED panel light circuit; S3: connecting LED lamp beads with the conductive wires in the circuits.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 15, 2022
    Inventors: Liangliang JI, Linyue LIU, Xiaohong ZHOU
  • Publication number: 20220361954
    Abstract: Novel tools and techniques are provided for implementing intelligent assistance (“IA”) or extended intelligence (“EI”) ecosystem to placement procedures for cardiac implantable electronic device (“CIED”). In various embodiments, a computing system might analyze received one or more first layer input data (i.e., room content-based data) and received one or more second layer input data (i.e., patient and/or tool-based data), and might generate one or more recommendations for guiding a medical professional in performing a CIED placement procedure in a heart of the patient, based at least in part on the analysis, the generated one or more recommendations comprising 3D or 4D mapped guides toward, in, and around the heart of the patient. The computing system might then generate one or more XR images, based at least in part on the generated one or more recommendations, and might present the generated one or more XR images using a UX device.
    Type: Application
    Filed: March 22, 2022
    Publication date: November 17, 2022
    Inventors: Peter N. Braido, Randal C. Schulhauser, Xiaohong Zhou, Alan Cheng, Zhongping Yang
  • Publication number: 20220362558
    Abstract: A medical device is configured to sense at least one cardiac electrical signal and generate pacing pulses according to a first pacing therapy by generating pacing pulses for delivery to a first combination of ventricular pacing sites including at least one ventricular conduction system pacing site. The medical device may be configured to determine a ventricular conduction condition based on a QRS signal feature of the sensed cardiac signal during the first pacing therapy. The medical device may change to a second pacing therapy different than the first pacing therapy based on the determined ventricular conduction condition.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 17, 2022
    Inventors: Xiaohong ZHOU, Wade M. DEMMER, Robert W. STADLER
  • Patent number: 11476373
    Abstract: Provided are a solar cell superfine electrode transfer thin film, manufacturing method and application method thereof. The electrode transfer thin film sequentially includes from bottom to top a substrate, a release layer, a resin layer and a hot melt adhesive layer; the resin layer is formed with electrode trenches therein; the electrode trenches are formed with electrodes therein; superfine conductive electrodes are continuously prepared on a transparent thin film via a roll-to-roll nanoimprinting method, the width of an electrode wire being 2 ?m-50 ?m, and the width of a typical line being 10 ?m-30 ?m. Directly attach the superfine electrodes of the hot melt adhesive layer to a solar cell by peeling off the substrate material, and sintering at a high temperature to volatilize the hot melt adhesive layer material while retaining the electrodes, thus the electrodes are integrally transferred, without poor local transfer.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: October 18, 2022
    Assignee: SVG OPTRONICS CO., LTD.
    Inventors: Xiaohong Zhou, Zongbao Fang, Linsen Chen, Pengfei Zhu, Donglin Pu, Ximei Yin, Yunlong Zhao
  • Patent number: 11462415
    Abstract: Methods for polishing dielectric layers using an auto-stop slurry in forming semiconductor devices, such as three-dimensional (3D) memory devices, are provided. For example, a stack structure is formed in a staircase region and a core array region. The stack structure includes a plurality of interleaved first material layers and second material layers. Edges of the interleaved first material layers and second material layers define a staircase structure on a side of the stack structure in the staircase region. A dielectric layer is formed over the staircase region and a peripheral region outside the stack structure. The dielectric layer includes a protrusion from the stack structure. The dielectric layer is polished using an auto-stop slurry to remove the protrusion of the dielectric layer.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: October 4, 2022
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventor: Xiaohong Zhou
  • Publication number: 20220273236
    Abstract: In some examples, processing circuitry of a medical device system determines, for each of a plurality of patient parameters, a difference metric for a current period based on a value of a patient parameter determined for the current period and a value of the patient parameter determined for an immediately preceding period, and determines a score for the current period based on a sum of the difference metrics for at least some of the plurality of patient parameters. The processing circuitry determines a threshold for the current period based on scores determined for N periods that precede the current period, compares the score for the current period to the threshold, and determines whether to generate an alert indicating that an acute cardiac event of the patient, e.g., ventricular tachyarrhythmia, is predicted, and/or deliver a therapy configured to prevent the acute cardiac event, based on the comparison.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventor: Xiaohong Zhou
  • Publication number: 20220199416
    Abstract: Methods for polishing dielectric layers using an auto-stop slurry in forming semiconductor devices, such as three-dimensional (3D) memory devices, are provided. For example, a stack structure is formed in a staircase region and a core array region. The stack structure includes a plurality of interleaved first material layers and second material layers. Edges of the interleaved first material layers and second material layers define a staircase structure on a side of the stack structure in the staircase region. A dielectric layer is formed over the staircase region and a peripheral region outside the stack structure. The dielectric layer includes a protrusion from the stack structure. The dielectric layer is polished using an auto-stop slurry to remove the protrusion of the dielectric layer.
    Type: Application
    Filed: January 29, 2021
    Publication date: June 23, 2022
    Inventor: Xiaohong Zhou
  • Patent number: 11311734
    Abstract: The present disclosure relates generally to pacing of cardiac tissue, and more particularly to adjusting delivery of His bundle or bundle branch pacing in a cardiac pacing system to achieve synchronized ventricular activation. A leadless pacing device (LPD) may include a plurality of electrodes comprising a bundle pacing electrode leadlessly connected to the housing, which may be implanted proximate to or in the His bundle or bundle branch of the patient's heart. An electrical pulse generator may generate and deliver electrical His-bundle or bundle-branch stimulation pulses using the bundle pacing electrode based on sensing one or both of an atrial event and a ventricular event. The LPD may receive communication from another implantable device, such as a subcutaneously implanted device, and deliver His-bundle or bundle-branch pacing in response to the communication.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: April 26, 2022
    Assignee: Medtronic, Inc.
    Inventor: Xiaohong Zhou
  • Publication number: 20220088390
    Abstract: An implantable medical device system is configured to generate signals representing activity of a heart of a patient; determine, based on the signals, an intrinsic delay of the heart of the patient; determine whether the intrinsic delay is indicative of a first-degree heart block being present in the heart of the patient; determine a patient-specific timing regime for conduction system pacing based on whether the intrinsic delay is indicative of the first-degree heart block being present in the heart of the patient; and administer cardiac pacing to a native conduction system of the heart of the patient based on the timing regime.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 24, 2022
    Inventors: Robert W. Stadler, Subham Ghosh, Jian Cao, Andrea Grammatico, Sarah Meloni, Xiaohong Zhou
  • Publication number: 20220088395
    Abstract: An adapter configured to electrically connect a test device to an implantable medical lead comprises a rotational electrical coupling. The rotational electrical coupling is configured to electrically connect a lead electrical connector to an adapter electrical connector. The rotational electrical coupling comprises a first conductive component configured to be electrically connected to the lead electrical connector and rotatable with a proximal portion of the implantable medical lead, and a second conductive component electrically connected to the first conductive component and the adapter electrical connector. The second conductive component may be rotationally fixed. The first and second conductive components may comprise graphite or another soft metal.
    Type: Application
    Filed: June 15, 2021
    Publication date: March 24, 2022
    Inventors: Zhongping Yang, Thomas A. Anderson, Wade M. Demmer, Xiaohong Zhou
  • Publication number: 20220080210
    Abstract: A medical device is configured to receive a cardiac signal and determine a morphology matching score from the cardiac signal and a capture detection morphology template that corresponds to a first type of cardiac pacing capture that includes capture of at least a first portion of the His-Purkinje system. The device is configured to detect a second type of cardiac pacing capture in response to the morphology matching score being less than the first match threshold. The second type of cardiac pacing capture is different than the first type of cardiac pacing capture and may include capture of the ventricular myocardium and/or a second portion of the His-Purkinje system different than the first portion.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Jian CAO, Wade M. DEMMER, Elizabeth A. MATTSON, Todd J. SHELDON, Xiaohong ZHOU
  • Publication number: 20220062645
    Abstract: This disclosure is directed to devices and techniques for classifying of pacing captures to evaluate effectiveness of pacing by a pacing device, such as an implantable medical device (IMD). An example system includes stimulation circuitry to generate a pacing stimulus, sensing circuitry to sense an evoked response after the pacing stimulus, and processing circuitry. The processing circuitry determines classification features from the evoked response and applies the classification features to a classification model, the classification model generated by a machine learning algorithm using one or more test sets comprising a plurality of sample evoked responses for each of a plurality of classifications. Based on the output of the model, the processing circuitry classifies the evoke response as one of the plurality of classifications.
    Type: Application
    Filed: August 12, 2021
    Publication date: March 3, 2022
    Inventors: Jian Cao, Elizabeth A. Mattson, Todd J. Sheldon, Xiaohong Zhou, Wade M. Demmer
  • Publication number: 20220023640
    Abstract: A medical device processor is configured to receive at least one cardiac electrical signal that is sensed during bilateral bundle branch pacing delivered from a bipolar electrode pair comprising an anode positioned along a first bundle branch and a cathode positioned along a second bundle branch opposite the first bundle branch, determine at least one feature from the first cardiac electrical signal, determine that the at least one feature meets first bundle branch capture criteria; and determine anodal bundle branch capture in response to the first bundle branch capture criteria being met.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 27, 2022
    Inventors: Xiaohong ZHOU, Wade M. DEMMER, Robert W. STADLER