Patents by Inventor Xiaonan Shen

Xiaonan Shen 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: 10926096
    Abstract: A temporary cardiac pacemaker including an acquisition module for acquiring an intracavity electrocardiography signal; a pre-processing module, connected to the acquisition module, for pre-processing the intracavity electrocardiography signal; a storage module, connected to the pre-processing module, for storing the pre-processed intracavity electrocardiography signal in real time; and a display control module, connected to the storage module, for display control. The display control module includes a display and an instruction determination unit for detecting whether a pacing parameter adjustment instruction is triggered and to call and display the intracavity electrocardiography signal stored in real time on a pacing parameter adjustment interface, which displays the intracavity electrocardiography signal stored in real time and the pacing adjustment parameter on the display; and the displayed information includes intracavity electrocardiography and electrocardiography event markers.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 23, 2021
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
    Inventors: Xiaonan Shen, Lepeng Zeng
  • Publication number: 20200297229
    Abstract: A method for processing and displaying an intracavity electrocardiography signal and a temporary cardiac pacemaker. The method includes acquiring an intracavity electrocardiography signal; pre-processing the intracavity electrocardiography signal; storing the pre-processed intracavity electrocardiography signal in real time; detecting whether a pacing parameter adjustment instruction is triggered, and if so, calling and displaying the signal stored in real time on a pacing parameter adjustment interface on the same screen. After the intracavity electrocardiography signal is acquired, a temporary cardiac pacemaker carries out a series of processing on the electrocardiography signal, and gives a display response according to a selection.
    Type: Application
    Filed: September 17, 2018
    Publication date: September 24, 2020
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
    Inventors: Xiaonan SHEN, Lepeng ZHENG
  • Patent number: 9867990
    Abstract: Aspects of the present disclosure include a medical device system including an implantable medical device and an external device with three or more electrodes configured to contact a patient's skin. The external device either transmits or receives a test signal to or from the implantable medical device using a plurality of possible receive dipoles, where each possible receive dipole is formed by a pair of electrodes. A signal quality monitor, either at the implantable medical device or at the external device, measures a signal quality for the possible receive dipoles.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 16, 2018
    Assignee: Medtronic, Inc.
    Inventors: Can Cinbis, David A. Anderson, Michael A. Reinert, Xiaonan Shen, James K. Carney, Michael B. Terry
  • Patent number: 9788981
    Abstract: A delivery tool of a system for deploying medical diagnostics and/or therapy includes a deployment member and a sheath. An elastic cantilever element secured to a tubular sidewall of the deployment member, in proximity to a distal opening of a lumen formed by the sidewall, is spring biased to extend outward from the sidewall. When the cantilever element is received within the sheath, a sheath sidewall pushes the cantilever element inward, against the spring bias thereof, and a radius of curvature of the cantilever element approximately conforms to that of an outer surface of the deployment member sidewall. A helical track for receiving passage of a medical device helix fixation element therein may extend around a perimeter of the deployment member lumen, wherein a distal terminal end of the track is located in close proximity to the distal opening and generally opposite a free end of the cantilever element.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: October 17, 2017
    Assignee: Medtronic, Inc.
    Inventors: Kenneth C. Gardeski, Nathan A. Grenz, Xiaonan Shen, Michael R. Leners, Lonnie D. Ronning
  • Patent number: 9522276
    Abstract: A medical device and associated method determine a signal amplitude of a sensor signal produced by a MEMS sensor, compare the signal amplitude to a stiction detection condition, detect stiction of the MEMS sensor in response to the signal amplitude meeting the stiction detection condition, and automatically provide a corrective action in response to detecting the stiction.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 20, 2016
    Assignee: Medtronic, Inc.
    Inventors: Xiaonan Shen, Nathan A Grenz, Robert D Musto, David L Palkert, Jonathan P Roberts, James D Reinke, Paul R Solheim
  • Publication number: 20160213934
    Abstract: A medical device and associated method determine a signal amplitude of a sensor signal produced by a MEMS sensor, compare the signal amplitude to a stiction detection condition, detect stiction of the MEMS sensor in response to the signal amplitude meeting the stiction detection condition, and automatically provide a corrective action in response to detecting the stiction.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 28, 2016
    Inventors: Xiaonan Shen, Nathan A. Grenz, Robert D. Musto, David L. Palkert, Jonathan P. Roberts, James D. Reinke, Paul R. Solheim
  • Publication number: 20160143758
    Abstract: A delivery tool of a system for deploying medical diagnostics and/or therapy includes a deployment member and a sheath. An elastic cantilever element secured to a tubular sidewall of the deployment member, in proximity to a distal opening of a lumen formed by the sidewall, is spring biased to extend outward from the sidewall. When the cantilever element is received within the sheath, a sheath sidewall pushes the cantilever element inward, against the spring bias thereof, and a radius of curvature of the cantilever element approximately conforms to that of an outer surface of the deployment member sidewall. A helical track for receiving passage of a medical device helix fixation element therein may extend around a perimeter of the deployment member lumen, wherein a distal terminal end of the track is located in close proximity to the distal opening and generally opposite a free end of the cantilever element.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 26, 2016
    Inventors: Kenneth C. GARDESKI, Nathan A. GRENZ, Xiaonan SHEN, Michael R. LENERS, Lonnie D. RONNING
  • Patent number: 9211091
    Abstract: A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: December 15, 2015
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Can Cinbis, Xiaonan Shen, Jonathan Kuhn
  • Patent number: 9209824
    Abstract: A medical device and associated method convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: December 8, 2015
    Assignee: Medtronic, Inc.
    Inventors: Xiaonan Shen, Jonathan P. Roberts
  • Publication number: 20150080688
    Abstract: A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Can CINBIS, Xiaonan SHEN, Jonathan KUHN
  • Publication number: 20150073228
    Abstract: A medical device and associated method convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.
    Type: Application
    Filed: February 18, 2014
    Publication date: March 12, 2015
    Applicant: Medtronic, Inc.
    Inventors: Xiaonan Shen, Jonathan P. Roberts
  • Patent number: 8941523
    Abstract: A medical device and associated method convert an analog signal using an adaptable number of comparisons between the analog signal and a reference signal. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable number of comparisons. For at least one of the conversion cycles, the adaptable number of comparisons is less than the total number of comparisons required to convert the analog signal over the full scale range of the A/D converter.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 27, 2015
    Assignee: Medtronic, Inc.
    Inventors: Xiaonan Shen, Jonathan P. Roberts
  • Patent number: 8923950
    Abstract: A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: December 30, 2014
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Can Cinbis, Xiaonan Shen, Jonathan L. Kuhn
  • Patent number: 8369932
    Abstract: A system and method for identifying the location of a medical device within a patient's body may be used to locate or identify the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 5, 2013
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Can Cinbis, Xiaonan Shen, Jonathan Kuhn
  • Patent number: 8340783
    Abstract: An implantable lead including a lead body including an outer surface, a proximal end, a distal end, and at least one electrode; an electrically insulating member that extends axially over a first portion of the outer surface of the lead body between the proximal end and distal end, the electrically insulating member defining at least one aperture that exposes a first portion of the at least one electrode when in a first position over the lead body; and a reinforcement member formed at least partially of a different material than the insulating member and coupled to the insulating member, the reinforcement member extending axially over the outer surface of the lead body between the insulating member and proximal end.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 25, 2012
    Assignee: Medtronic, Inc.
    Inventors: John L. Sommer, Kenneth C. Gardeski, Xiaonan Shen, Jon D. Schell
  • Patent number: 8244339
    Abstract: An implantable medical device system and associated method monitor changes in transimpedance in a body tissue due to changes in cardiac pulsatility. A first dipole is used to deliver a non-stimulating electrical current. The first dipole includes a first electrode and a second electrode adapted to be deployed along a first body location. A second dipole is used to measure a voltage resulting from the non-stimulating electrical current being conducted through a portion of a patient's body. The second dipole includes a third electrode and a fourth electrode different than the first electrode and the second electrode and adapted to be deployed along a second body location spaced apart from the first body location.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 14, 2012
    Assignee: Medtronic, Inc.
    Inventors: Xiaonan Shen, Can Cinbis
  • Publication number: 20120109258
    Abstract: Aspects of the present disclosure include a medical device system including an implantable medical device and an external device with three or more electrodes configured to contact a patient's skin. The external device either transmits or receives a test signal to or from the implantable medical device using a plurality of possible receive dipoles, where each possible receive dipole is formed by a pair of electrodes. A signal quality monitor, either at the implantable medical device or at the external device, measures a signal quality for the possible receive dipoles.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: MEDTRONIC, INC.
    Inventors: Can Cinbis, David A. Anderson, Michael A. Reinert, Xiaonan Shen, James K. Carney, Michael B. Terry
  • Publication number: 20120035490
    Abstract: An implantable medical device system and associated method monitor changes in transimpedance in a body tissue due to changes in cardiac pulsatility. A first dipole is used to deliver a non-stimulating electrical current. The first dipole includes a first electrode and a second electrode adapted to be deployed along a first body location. A second dipole is used to measure a voltage resulting from the non-stimulating electrical current being conducted through a portion of a patient's body. The second dipole includes a third electrode and a fourth electrode different than the first electrode and the second electrode and adapted to be deployed along a second body location spaced apart from the first body location.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 9, 2012
    Inventors: Xiaonan Shen, Can Cinbis
  • Publication number: 20110190624
    Abstract: A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 4, 2011
    Applicant: MEDTRONIC ABLATION FRONTIERS LLC
    Inventors: Can CINBIS, Xiaonan SHEN, Jonathan KUHN
  • Publication number: 20100331938
    Abstract: An implantable lead including a lead body including an outer surface, a proximal end, a distal end, and at least one electrode; an electrically insulating member that extends axially over a first portion of the outer surface of the lead body between the proximal end and distal end, the electrically insulating member defining at least one aperture that exposes a first portion of the at least one electrode when in a first position over the lead body; and a reinforcement member formed at least partially of a different material than the insulating member and coupled to the insulating member, the reinforcement member extending axially over the outer surface of the lead body between the insulating member and proximal end.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Inventors: John L. Sommer, Kenneth C. Gardeski, Xiaonan Shen, Jon D. Schell