Patents by Inventor Guy Alvarez

Guy Alvarez 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).

  • Publication number: 20240091800
    Abstract: A hand held spray dispenser in which air and liquid are pressurised towards a mixing chamber by energy generated by a manual activation element that is rotated with a unidirectional twist to energise one or more energy storage bodies, energy from which is released to generate sufficient air pressure and air flow and sufficient liquid flow for a spray to be formed from the air-liquid mixture.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 21, 2024
    Inventors: Andrew Robert AITKEN, Sebastian ALVAREZ, Sjoerd Paul HOIJINCK, Eduardo CARVALHAL LAGE VON BUETTNER RISTOW, Guy Richard THOMPSON
  • Patent number: 9403007
    Abstract: Some embodiments, by way of example, provide a system, comprising a posture change detector configured to detect a posture transition indicative of an increased risk of syncope, and a neural stimulator configured to deliver a neural stimulation therapy. The neural stimulator may include a syncope avoidance module configured to respond to a detected posture transition by temporarily overriding the neural stimulation therapy to ameliorate the risk of increased syncope.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: August 2, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Eric A. Mokelke, Shibaji Shome, Guy Alvarez, Harlan Bos, Kenneth Martin Stein, John D. Hatlestad
  • Patent number: 9278217
    Abstract: Described are methods and devices for improving diastolic function with electrostimulation in heart failure patients who exhibit relatively normal systolic function. Such patients are characterized by impaired myocardial relaxation during diastole that prevents adequate filling of the ventricles during diastole to thereby reduce cardiac output. An implantable device is described for effecting strategic and periodic stimulation of the sympathetic nervous system to elicit myocardial adrenergic activation for improved myocardial relaxation.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 8, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan C. Shuros, Shantha Arcot-Krishnamurthy, Guy Alvarez
  • Patent number: 8825156
    Abstract: A system and method for detecting and treating symptoms of early decompensation utilizing a cardiac rhythm management. The system applies an electrical stimulus to the patient's heart at a first set of pacing parameters including a lower rate limit (LRL) setting, and acquires a coronary venous pressure (CVP) signal from a pressure sensor implanted in a coronary vein of the patient. An average coronary venous end diastolic pressure (CV-EDP) value is calculated from the CVP signal. The system monitors the average CV-EDP value over a predetermined interval, and dynamically adjusts the LRL setting responsive to the detection of a first or a second predetermined event based on the average CV-EDP value.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: September 2, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Publication number: 20130338727
    Abstract: Some embodiments, by way of example, provide a system, comprising a posture change detector configured to detect a posture transition indicative of an increased risk of syncope, and a neural stimulator configured to deliver a neural stimulation therapy. The neural stimulator may include a syncope avoidance module configured to respond to a detected posture transition by temporarily overriding the neural stimulation therapy to ameliorate the risk of increased syncope.
    Type: Application
    Filed: May 14, 2013
    Publication date: December 19, 2013
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Eric A. Mokelke, Shibaji Shome, Guy Alvarez, Harlan Bos, Kenneth Martin Stein, John D. Hatlestad
  • Publication number: 20130310889
    Abstract: Described are methods and devices for improving diastolic function with electrostimulation in heart failure patients who exhibit relatively normal systolic function. Such patients are characterized by impaired myocardial relaxation during diastole that prevents adequate filling of the ventricles during diastole to thereby reduce cardiac output. An implantable device is described for effecting strategic and periodic stimulation of the sympathetic nervous system to elicit myocardial adrenergic activation for improved myocardial relaxation.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 21, 2013
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Allan C. Shuros, Shantha Arcot-Krishnamurthy, Guy Alvarez
  • Patent number: 8583232
    Abstract: A system and method for pacing rate control in a cardiac rhythm management (CRM) system. The method includes acquiring a pressure signal representative of coronary venous pressure (CVP) from a pressure sensor implanted within a coronary vein of the patient and generating a CVP waveform from the pressure signal. A pacing stimulus is applied to the patient's heart, and the pacing rate is increased in response to increases in patient's metabolic demand. The CVP index is monitored during the pacing rate increase, and the CRM system detects a reduction in the patient's hemodymanic performance based on the CVP index and establishes a maximum rate setting based on the pacing rate corresponding to the reduction in the patient's hemodynamic performance.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 12, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Patent number: 8498704
    Abstract: Described are methods and devices for improving diastolic function with electrostimulation in heart failure patients who exhibit relatively normal systolic function. Such patients are characterized by impaired myocardial relaxation during diastole that prevents adequate filling of the ventricles during diastole to thereby reduce cardiac output. An implantable device is described for effecting strategic and periodic stimulation of the sympathetic nervous system to elicit myocardial adrenergic activation for improved myocardial relaxation.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 30, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan C. Shuros, Shantha Arcot-Krishnamurthy, Guy Alvarez
  • Patent number: 8423140
    Abstract: A system and method for detecting and treating symptoms of early decompensation utilizing a cardiac rhythm management. The system applies an electrical stimulus to the patient's heart at a first set of pacing parameters including a lower rate limit (LRL) setting, and acquires a coronary venous pressure (CVP) signal from a pressure sensor implanted in a coronary vein of the patient. An average coronary venous end diastolic pressure (CV-EDP) value is calculated from the CVP signal. The system monitors the average CV-EDP value over a predetermined interval, and dynamically adjusts the LRL setting responsive to the detection of a first or a second predetermined event based on the average CV-EDP value.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: April 16, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Patent number: 8417336
    Abstract: A system and method for pacing rate control in a cardiac rhythm management (CRM) system. The method includes acquiring a pressure signal representative of coronary venous pressure (CVP) from a pressure sensor implanted within a coronary vein of the patient and generating a CVP waveform from the pressure signal. A pacing stimulus is applied to the patient's heart, and the pacing rate is increased in response to increases in patient's metabolic demand. The CVP index is monitored during the pacing rate increase, and the CRM system detects a reduction in the patient's hemodynamic performance based on the CVP index and establishes a maximum rate setting based on the pacing rate corresponding to the reduction in the patient's hemodynamic performance.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: April 9, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Publication number: 20110190840
    Abstract: Described are methods and devices for improving diastolic function with electrostimulation in heart failure patients who exhibit relatively normal systolic function. Such patients are characterized by impaired myocardial relaxation during diastole that prevents adequate filling of the ventricles during diastole to thereby reduce cardiac output. An implantable device is described for effecting strategic and periodic stimulation of the sympathetic nervous system to elicit myocardial adrenergic activation for improved myocardial relaxation.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 4, 2011
    Inventors: Allan C. Shuros, Shantha Arcot-Krishnamurthy, Guy Alvarez
  • Patent number: 7869871
    Abstract: Described herein are methods and systems for delivering pacing therapy to HF patients who do not exhibit a reduced EF. Such patients do not have systolic dysfunction and generally do not benefit from established HF therapies that either augment contractile function or counteract conduction abnormalities. In one embodiment, a HF patient with a normal EF is tested for the adequacy of heart rate response during exercise. If the patient is found to be chronotropically incompetent, a rate-adaptive pacing mode is employed in order to improve functional capacity.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: January 11, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Rodney W. Salo, Guy Alvarez, Eric G. Lovett
  • Publication number: 20100305649
    Abstract: A system and method for detecting and treating symptoms of early decompensation utilizing a cardiac rhythm management. The system applies an electrical stimulus to the patient's heart at a first set of pacing parameters including a lower rate limit (LRL) setting, and acquires a coronary venous pressure (CVP) signal from a pressure sensor implanted in a coronary vein of the patient. An average coronary venous end diastolic pressure (CV-EDP) value is calculated from the CVP signal. The system monitors the average CV-EDP value over a predetermined interval, and dynamically adjusts the LRL setting responsive to the detection of a first or a second predetermined event based on the average CV-EDP value.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Publication number: 20100305650
    Abstract: A system and method for pacing rate control in a cardiac rhythm management (CRM) system. The method includes acquiring a pressure signal representative of coronary venous pressure (CVP) from a pressure sensor implanted within a coronary vein of the patient and generating a CVP waveform from the pressure signal. A pacing stimulus is applied to the patient's heart, and the pacing rate is increased in response to increases in patient's metabolic demand. The CVP index is monitored during the pacing rate increase, and the CRM system detects a reduction in the patient's hemodynamic performance based on the CVP index and establishes a maximum rate setting based on the pacing rate corresponding to the reduction in the patient's hemodynamic performance.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Inventors: Barun Maskara, Lili Liu, Guy Alvarez, Scott A. Meyer
  • Publication number: 20090036938
    Abstract: An improved system for delivering external counterpulsation therapy is described. The system employs muscle stimulation transducers such as cutaneous electrodes in order to stimulate skeletal muscle and/or vascular smooth muscle in synchronization with the cardiac cycle in a manner that increases the fluid pressure within veins and/or arteries during cardiac diastole.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Robert Shipley, Guy Alvarez, Rodney W. Salo, Anand Iyer, Joseph M. Pastore, Joseph Walker
  • Publication number: 20070239219
    Abstract: Described herein are methods and systems for delivering pacing therapy to HF patients who do not exhibit a reduced EF. Such patients do not have systolic dysfunction and generally do not benefit from established HF therapies that either augment contractile function or counteract conduction abnormalities. In one embodiment, a HF patient with a normal EF is tested for the adequacy of heart rate response during exercise. If the patient is found to be chronotropically incompetent, a rate-adaptive pacing mode is employed in order improve functional capacity.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 11, 2007
    Inventors: Rodney Salo, Guy Alvarez, Eric Lovett