Patents by Inventor Xiaoyi Min

Xiaoyi Min 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).

  • INTRA-CARDIAC IMPLANTABLE MEDICAL DEVICE WITH IC DEVICE EXTENSION FOR LV PACING/SENSING
    Publication number: 20140172034
    Abstract: An assembly is provided for introducing a device within a heart of a patient. The assembly is comprised of a sheath having at least one internal passage. An intra-cardiac implantable medical device (IIMD) is retained within the at least one internal passage, wherein the IIMD is configured to be discharged from a distal end of the sheath. The IIMD has a housing with a first active fixation member configured to anchor the IIMD at a first implant location within a local chamber of the heart.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: PACESETTER, INC.
    Inventors: Gene A. Bornzin, John W. Poore, Zoltan Somogyi, Xiaoyi Min, Didier Theret
  • Systems and methods for assessing heart failure and controlling cardiac resynchronization therapy using hybrid impedance measurement configurations
    Patent number: 8750981
    Abstract: Techniques are provided for use with an implantable medical device for detecting and assessing heart failure and for controlling cardiac resynchronization therapy (CRT) based on impedance signals obtained using hybrid impedance configurations. The hybrid configurations exploit right atrial (RA)-based impedance measurement vectors and/or left ventricular (LV)-based impedance measurement vectors. In one example, current is injected between the device case and a ring electrode in the right ventricle (RV) or RA. RA-based impedance values are measured along vectors between the device case and an RA electrode. LV-based impedance values are measured along vectors between the device case and one or more electrodes of the LV. Heart failure and other cardiac conditions are detected and tracked using the measured impedance values. CRT delay parameters are also optimized based impedance.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: June 10, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Gene A. Bornzin, Xiaoyi Min, Laurence S. Sloman, Steve Koh
  • Multi-site pacing for atrial tachyarrhythmias
    Patent number: 8750993
    Abstract: Tachyarrhythmia is treated by applying anti-tachycardia pacing through at least one multi-site electrode set located on, in or around the heart. The electrode set is arranged and located such that an electrical activation pattern having a wave-front between substantially flat and concave is generated through a reentrant circuit associated with the tachyarrhythmia. The electrode set may be one of a plurality of predefined, multi-site electrode sets located on, in or around the atria. Alternatively, the electrode set may be formed using at least two selectable electrodes located on, in or around the atria.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: June 10, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Kyungmoo Ryu, Jong Gill, Xiaoyi Min, Annapurna Karicherla, Gene A. Bornzin
  • Posture detection using pressure and other physiologic sensors
    Patent number: 8731665
    Abstract: Systems and methods are provided for detecting the orientation and/or movement of a patient having an implantable cardiac stimulation device and evaluating whether a change in the patient's cardiac activity can be at least in part due to a change in the patient's orientation. In one particular embodiment, signals from an orientation sensor and/or a pressure sensor are evaluated to determine static positional orientation of the patient and determine based on the static orientation whether the patient's cardiac activity is abnormal.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: May 20, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Laleh Jalali, Steve Koh, Gene A. Bornzin, Euljoon Park
  • Determination of diastolic heart failure
    Patent number: 8702616
    Abstract: An exemplary method includes detecting a change in state of a cardiac valve, detecting elongation of the left ventricle substantially along its major axis, determining a time difference between the change in state of the cardiac valve and the elongation of the left ventricle and, based at least in part on the time difference, deciding whether a diastolic abnormality exists. Other exemplary methods, devices, systems, etc., are also disclosed.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: April 22, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Jong Gill, Xiaoyi Min, Gene A. Bornzin, Eric Falkenberg
  • SINGLE-CHAMBER LEADLESS INTRA-CARDIAC MEDICAL DEVICE WITH DUAL-CHAMBER FUNCTIONALITY
    Publication number: 20140107723
    Abstract: A leadless implantable medical device (LIMD) comprises a housing configured to be implanted entirely within a single local ventricular chamber of the heart near a local apex region. A base on the housing is configured to be secured to tissue of interest, while a distal electrode is provided on the base and extends outward such that, when the device is implanted in the local chamber, the distal electrode is configured to engage the distal apex region at a distal activation site within the conduction network of the adjacent ventricular chamber.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 17, 2014
    Applicant: PACESETTER, INC.
    Inventors: Wenbo Hou, Xiaoyi Min, Edward Karst
  • Single-chamber leadless intra-cardiac medical device with dual-chamber functionality and shaped stabilization intra-cardiac extension
    Patent number: 8700181
    Abstract: A leadless intra-cardiac medical device (LIMD) configured to be implanted entirely within a heart of a patient includes a housing configured to be securely attached to an interior wall portion of a chamber of the heart, and a stabilizing intra-cardiac (IC) device extension connected to the housing. The stabilizing IC device extension may include a stabilizer arm, and/or an appendage arm, or an elongated body or a loop member configured to be passively secured within the heart.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 15, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Gene A. Bornzin, Xiaoyi Min, John W. Poore, Zoltan Somogyi, Didier Theret
  • LEADLESS INTRA-CARDIAC MEDICAL DEVICE WITH INTEGRATED L-C RESONANT CIRCUIT PRESSURE SENSOR
    Publication number: 20140100627
    Abstract: A leadless intra-cardiac medical device comprises an integrated L-C resonant circuit pressure sensor. In some embodiments, the pressure sensor comprises a passive sensor that measures pressure in response to an externally generated excitation signal. In some embodiments, the pressure sensor comprises an active sensor that measures pressure in response to an internally generated excitation signal.
    Type: Application
    Filed: October 8, 2012
    Publication date: April 10, 2014
    Applicant: PACESETTER, INC.
    Inventor: Xiaoyi Min
  • IMPLANTABLE THERAPY LEAD WITH CONDUCTOR CONFIGURATION ENHANCING ABRASION RESISTANCE
    Publication number: 20140094889
    Abstract: An implantable therapy lead employs electrical conductors configured to enhance the abrasion resistance of the lead. Specifically, conductors are configured to create a surface contact area with walls of a wall lumen of a tubular body that is greater than would otherwise be possible with traditional conductors that have a circular transverse cross-section. As a result, the abrasion pressure of the conductors against the lumen walls is decreased for the conductors disclosed herein as compared to that of traditional conductors.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: PACESETTER, INC.
    Inventors: Tyler Strang, Daniel Hale, Michael Childers, Xiaoyi Min, Wenbo Hou, Phong D. Doan
  • IMPLANTABLE THERAPY LEAD WITH CONDUCTOR CONFIGURATION ENHANCING ABRASION RESISTANCE
    Publication number: 20140094890
    Abstract: An implantable therapy lead employs electrical conductors configured to enhance the abrasion resistance of the lead. Specifically, conductors are configured to create a surface contact area with walls of a wall lumen of a tubular body that is greater than would otherwise be possible with traditional conductors that have a circular transverse cross-section. As a result, the abrasion pressure of the conductors against the lumen walls is decreased for the conductors disclosed herein as compared to that of traditional conductors.
    Type: Application
    Filed: February 13, 2013
    Publication date: April 3, 2014
    Applicant: PACESETTER, INC.
    Inventors: Tyler Strang, Daniel Hale, Michael Childers, Xiaoyi Min, Wenbo Hou, Phong D. Doan
  • Systems and methods for controlling neurostimulation of acupuncture sites using an implantable cardiac rhythm management device
    Patent number: 8682450
    Abstract: Techniques are provided for use with an implantable cardiac rhythm management (CRMD) system equipped to deliver neurostimulation to acupuncture sites within anterior regions of the neck, thorax or abdomen of the patient. Parameters associated with the health of the patient are detected, such as parameters indicative of arrhythmia, heart failure and hypertension.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 25, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Stuart Rosenberg, Taraneh Ghaffari Farazi, Timothy A. Fayram
  • Method and system for discrimination of VT and SVT arrhythmias
    Patent number: 8670825
    Abstract: Methods and systems are provided for discriminating heart arrhythmias. The methods and systems include identifying an arrhythmia, recording a predetermined number of beats during the arrhythmia as a base arrhythmia (BA) beats; delivering anti-tachy pacing (ATP) therapy to at least one chamber of the heart. After delivering the ATP therapy, the methods and system record at least one return beat representing cardiac activity following the ATP therapy, determines whether the return beat originated in a reference chamber of the heart, compares a morphology of the return beat to a morphology of the BA beat; and declares a VT or SVT based on the comparing operation.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 11, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Eliot L. Ostrow
  • Intra-cardiac implantable medical device
    Patent number: 8670842
    Abstract: An intra-cardiac implantable medical device (IIMD) system may include a housing and an intra-cardiac (IC) device extension. The housing may be configured to be implanted entirely within a local chamber of the heart. The housing includes a base configured to be secured to the local chamber. The IC device extension may include a proximal end, a distal end, and an extension body extending there between. The proximal end may be coupled to the housing and configured to be located in the local chamber. The extension body may include an IE orientation segment connected to a chamber transition segment that is sufficient in length to extend from the local chamber into an adjacent chamber. The IE orientation segment is configured to be lodged within the adjacent chamber in order to stabilize the system within heart.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 11, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Gene A. Bornzin, John W. Poore, Zoltan Somogyi, Xiaoyi Min, Didier Theret, Elaine Karaelias
  • SYSTEMS AND METHODS FOR CONTROLLING NEUROSTIMULATION OF ACUPUNCTURE SITES USING AN IMPLANTABLE CARDIAC RHYTHM MANAGEMENT DEVICE
    Publication number: 20140039238
    Abstract: Techniques are provided for use with an implantable cardiac rhythm management (CRMD) system equipped to deliver neurostimulation to acupuncture sites within anterior regions of the neck, thorax or abdomen of the patient. Parameters associated with the health of the patient are detected, such as parameters indicative of arrhythmia, heart failure and hypertension.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: PACESETTER, INC.
    Inventors: Xiaoyi Min, Stuart Rosenberg, Taraneh Ghaffari Farazi, Timothy A. Fayram
  • SYSTEMS AND METHODS FOR DETECTING MECHANICAL DYSSYNCHRONY AND STROKE VOLUME FOR USE WITH AN IMPLANTABLE MEDICAL DEVICE EMPLOYING A MULTI-POLE LEFT VENTRICULAR LEAD
    Publication number: 20140039333
    Abstract: Techniques are provided for use with an implantable medical device for evaluating mechanical cardiac dyssynchrony based impedance (Z) measured along different vectors between an electrode in the right ventricle (RV) and various electrodes of a multi-pole left ventricle (LV) lead.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: PACESETTER, INC.
    Inventor: Xiaoyi Min
  • METHOD AND SYSTEM FOR DISCRIMINATION OF VT AND SVT ARRHYTHMIAS
    Publication number: 20140039332
    Abstract: Methods and systems are provided for discriminating heart arrhythmias. The methods and systems include identifying an arrhythmia, recording a predetermined number of beats during the arrhythmia as a base arrhythmia (BA) beats; delivering anti-tachy pacing (ATP) therapy to at least one chamber of the heart. After delivering the ATP therapy, the methods and system record at least one return beat representing cardiac activity following the ATP therapy, determines whether the return beat originated in a reference chamber of the heart, compares a morphology of the return beat to a morphology of the BA beat; and declares a VT or SVT based on the comparing operation.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: PACESETTER, INC.
    Inventors: Xiaoyi Min, Eliot L. Ostrow
  • Intracardiac implantable medical device for biatrial and/or left heart pacing and method of implanting same
    Patent number: 8634919
    Abstract: An intra-cardiac implantable medical device (IIMD) and method of implant are provided. The IIMD comprises a housing configured to be implanted entirely within a coronary sinus (CS) of the heart. The IIMD has at least one intra-cardiac device extension (ICDE).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 21, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Wenbo Hou, Xiaoyi Min, Edward Karst
  • Dual-chamber leadless intra-cardiac medical device with intra-cardiac extension
    Patent number: 8634912
    Abstract: A leadless intra-cardiac medical device includes a housing that is configured to be implanted entirely within a single local chamber of the heart. A first electrode is provided on the housing at a first position such that when the housing is implanted in the local chamber, the first electrode engages the local wall tissue at a local activation site within the conduction network of the local chamber. An intra-cardiac extension is coupled to the housing and configured to extend from the local chamber into an adjacent chamber of the heart. A stabilization arm of the intra-cardiac extension engages the adjacent chamber. A second electrode on the intra-cardiac extension engages distal wall tissue at a distal activation site within the conduction network of the adjacent chamber.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: January 21, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Gene A. Bornzin, Gabriel A. Mouchawar, Xiaoyi Min, John W. Poore, Edward Karst, Richard Samade, Zoltan Somogyi, Didier Theret
  • MRI compatible implantable medical lead and method of making same
    Patent number: 8634931
    Abstract: An implantable medical lead is disclosed herein. In one embodiment, the lead includes a body and an electrical pathway. The body may include a distal portion with an electrode and a proximal portion with a lead connector end. The electrical pathway may extend between the electrode and lead connector end and include a coiled inductor including a first portion and a second portion at least partially magnetically decoupled from the first portion. The first portion may include a first configuration having a first SRF. The second portion may include a second configuration different from the first configuration. The second configuration may have a second SRF different from the first SRF. For example, the first SRF may be near 64 MHz and the second SRF may be near 128 MHz.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: January 21, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, J. Christopher Moulder, Yong D. Zhao, Virote Indravudh, Ingmar Viohl
  • Systems and methods for remote monitoring of signals sensed by an implantable medical device during an MRI
    Patent number: 8620446
    Abstract: Systems and methods are provided for allowing an implantable medical device, such as pacemaker, to properly sense electrophysiological signals and hemodynamic signals within a patient during a magnetic resonance imaging (MRI) procedure. Systems and methods are also provided for allowing the implantable medical device to transmit the sensed data to an external monitoring system during the MRI procedure so that attending medical personnel can closely monitor the health of the patient and the operation of the implantable device during the MRI. These improvements provide the attending personnel with information needed to determine whether the MRI should be suspended in response to induced tachyarrhythmias or other adverse conditions within the patient.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: December 31, 2013
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Gabriel A. Mouchawar