Patents by Inventor Robert Van Tassel

Robert Van Tassel 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: 11097108
    Abstract: Systems and methods for reducing ventricle filling volume are disclosed. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated at a consistent rate to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 24, 2021
    Assignee: BackBeat Medical, LLC
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Patent number: 10967188
    Abstract: Systems and methods for controlling blood pressure by controlling atrial pressure and atrial stretch are disclosed. In some embodiments, a stimulation circuit may be configured to deliver a stimulation pulse to at least one cardiac chamber of a heart of a patient, and at least one controller may be configured to execute delivery of one or more stimulation patterns of stimulation pulses to the at least one cardiac chamber, wherein at least one of the stimulation pulses stimulates the heart such that an atrial pressure resulting from atrial contraction of an atrium overlaps in time a passive pressure build-up of the atrium, such that an atrial pressure of the atrium resulting from the stimulation is a combination of the atrial pressure resulting from atrial contraction and the passive pressure build-up and is higher than an atrial pressure of the atrium would be without the stimulation, and such that the blood pressure of the patient is reduced.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 6, 2021
    Assignee: BackBeat Medical, LLC
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20200316385
    Abstract: Systems and methods for reducing ventricle filling volume are disclosed. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated at a consistent rate to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 8, 2020
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20200121451
    Abstract: Systems and methods for controlling blood pressure via electrical stimulation of the heart are disclosed. Embodiments may include at least two different stimulation patterns, each configured to reduce blood pressure to a different degree, and may alternate between stimulation patterns based on the need of a patient, for example, alternating between day and night or between periods of strenuous and light activity. Some embodiments may take advantage of a slow baroreflex response that occurs after treatment is stopped, suspending treatment for extended periods, and then resuming treatment before blood pressure levels reach pretreatment values. Embodiments may control blood pressure by controlling atrial pressure and atrial stretch.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 23, 2020
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Patent number: 10610689
    Abstract: Systems and methods for reducing ventricle filling volume are disclosed. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated at a consistent rate to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 7, 2020
    Assignee: BackBeat Medical, Inc.
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20200094060
    Abstract: Methods and devices for reducing ventricle filling volume are disclosed. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated in a consistent way to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Application
    Filed: September 26, 2019
    Publication date: March 26, 2020
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Patent number: 10485658
    Abstract: Systems and methods for controlling blood pressure via electrical stimulation of the heart are disclosed. Embodiments may include at least two different stimulation patterns, each configured to reduce blood pressure to a different degree, and may alternate between stimulation patterns based on the need of a patient, for example, alternating between day and night or between periods of strenuous and light activity. Some embodiments may take advantage of a slow baroreflex response that occurs after treatment is stopped, suspending treatment for extended periods, and then resuming treatment before blood pressure levels reach pretreatment values. Embodiments may control blood pressure by controlling atrial pressure and atrial stretch.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 26, 2019
    Assignee: BackBeat Medical, Inc.
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20190313774
    Abstract: A method and apparatus for attaching tissue to bone in a shifted position without requiring surgical detachment of muscle or connective tissue joining the tissue layer to the bone layer. The skin layer is gently pulled in a non-surgical manner and a fastener of the invention is driven through the skin layer into the bone layer to effect a “skin tightening” procedure.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Applicant: Zift Medical, LLC
    Inventors: Robert S. Schwartz, Stanton J. Rowe, Robert A. Van Tassel, Ralph Schneider, Ming Wu, David John Blaeser, Philip Jon Haarstad, Eric J. Simso, Douglas Jay Krone, Brian Zelickson, Robert A. Ganz, Matt Blaeser, Matt Keillor
  • Patent number: 10441794
    Abstract: Methods and devices for reducing ventricle filling volume are disclosed. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated in a consistent way to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 15, 2019
    Assignee: BackBeat Medical, Inc.
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20190269927
    Abstract: Systems and methods for controlling blood pressure by controlling atrial pressure and atrial stretch are disclosed. In some embodiments, a stimulation circuit may be configured to deliver a stimulation pulse to at least one cardiac chamber of a heart of a patient, and at least one controller may be configured to execute delivery of one or more stimulation patterns of stimulation pulses to the at least one cardiac chamber, wherein at least one of the stimulation pulses stimulates the heart such that an atrial pressure resulting from atrial contraction of an atrium overlaps in time a passive pressure build-up of the atrium, such that an atrial pressure of the atrium resulting from the stimulation is a combination of the atrial pressure resulting from atrial contraction and the passive pressure build-up and is higher than an atrial pressure of the atrium would be without the stimulation, and such that the blood pressure of the patient is reduced.
    Type: Application
    Filed: February 15, 2019
    Publication date: September 5, 2019
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Publication number: 20190255334
    Abstract: A method that electrically stimulates a heart muscle to alter the ejection profile of the heart, to control the mechanical function of the heart and reduce the observed blood pressure of the patient. The therapy may be invoked by an implantable blood pressure sensor associated with a pacemaker like device. In some cases, where a measured pretreatment blood pressure exceeds a treatment threshold, a patient's heart may be stimulated with an electrical stimulus timed relative to the patient's cardiac ejection cycle. This is done to cause dyssynchrony between at least two cardiac chambers or within a cardiac chamber, which alters the patient's cardiac ejection profile from a pretreatment cardiac ejection profile. This has the effect of reducing the patient's blood pressure from the measured pretreatment blood pressure.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 22, 2019
    Inventors: Robert S. Schwartz, Robert A. Van Tassel
  • Publication number: 20190240012
    Abstract: The present invention relates to devices and methods for improving the function of a defective heart valve, and particularly for reducing regurgitation through an atrioventricular heart valve—i.e., the mitral valve and the tricuspid valve. For a tricuspid repair, the device includes an anchor deployed in the tissue of the right ventricle, in an orifice opening to the right atrium, or anchored to the tricuspid valve. A flexible anchor rail connects to the anchor and a coaptation element on a catheter rides over the anchor rail. The catheter attaches to the proximal end of the coaptation element, and a locking mechanism fixes the position of the coaptation element relative to the anchor rail. Finally, there is a proximal anchoring feature to fix the proximal end of the coaptation catheter subcutaneously adjacent the subclavian vein. The coaptation element includes an inert covering and helps reduce regurgitation through contact with the valve leaflets.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Inventors: Stanton J. Rowe, Robert S. Schwartz, Robert Van Tassel, Vivian Khalil, Erin M. Spinner, Neil S. Zimmerman, Alexander J. Siegel
  • Publication number: 20190201183
    Abstract: A method and apparatus for attaching tissue to bone in a shifted position without requiring surgical detachment of muscle or connective tissue joining the tissue layer to the bone layer. The skin and/or soft tissue layer is displaced in a surgical or non-surgical manner and a fastener of the invention is driven through the skin and/or soft tissue layer into the periosteum or bone layer to affect a tissue repositioning procedure. The method and apparatus may also be used to attach tissue to tissue an a shifted position.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 4, 2019
    Applicant: Zift, LLC
    Inventors: Robert S. Schwartz, Stanton J. Rowe, Robert A. Van Tassel, Ralph Schneider, Ming Wu, David John Blaeser, Eric J. Simso, Philip Jon Haarstad, Douglas Jay Krone, Brian Zelickson, Robert A. Ganz, Matt Blaeser, Matt Keillor
  • Patent number: 10285812
    Abstract: The present invention relates to devices and methods for improving the function of a defective heart valve, and particularly for reducing regurgitation through an atrioventricular heart valve—i.e., the mitral valve and the tricuspid valve. For a tricuspid repair, the device includes an anchor deployed in the tissue of the right ventricle, in an orifice opening to the right atrium, or anchored to the tricuspid valve. A flexible anchor rail connects to the anchor and a coaptation element on a catheter rides over the anchor rail. The catheter attaches to the proximal end of the coaptation element, and a locking mechanism fixes the position of the coaptation element relative to the anchor rail. Finally, there is a proximal anchoring feature to fix the proximal end of the coaptation catheter subcutaneously adjacent the subclavian vein. The coaptation element includes an inert covering and helps reduce regurgitation through contact with the valve leaflets.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 14, 2019
    Assignee: Edwards Lifesciences Corporation
    Inventors: Stanton J. Rowe, Robert Schwartz, Robert Van Tassel, Vivian Khalil, Erin M. Spinner, Neil S. Zimmerman, Alexander J. Siegel
  • Patent number: 10252061
    Abstract: Systems and methods for controlling blood pressure by controlling atrial pressure and atrial stretch are disclosed. In some embodiments, a stimulation circuit may be configured to deliver a stimulation pulse to at least one cardiac chamber of a heart of a patient, and at least one controller may be configured to execute delivery of one or more stimulation patterns of stimulation pulses to the at least one cardiac chamber, wherein at least one of the stimulation pulses stimulates the heart such that an atrial pressure resulting from atrial contraction of an atrium overlaps in time a passive pressure build-up of the atrium, such that an atrial pressure of the atrium resulting from the stimulation is a combination of the atrial pressure resulting from atrial contraction and the passive pressure build-up and is higher than an atrial pressure of the atrium would be without the stimulation, and such that the blood pressure of the patient is reduced.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 9, 2019
    Assignee: BackBeat Medical, Inc.
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Patent number: 10232183
    Abstract: A method that electrically stimulates a heart muscle to alter the ejection profile of the heart, to control the mechanical function of the heart and reduce the observed blood pressure of the patient. The therapy may be invoked by an implantable blood pressure sensor associated with a pacemaker like device. In some cases, where a measured pretreatment blood pressure exceeds a treatment threshold, a patient's heart may be stimulated with an electrical stimulus timed relative to the patient's cardiac ejection cycle. This is done to cause dyssynchrony between at least two cardiac chambers or within a cardiac chamber, which alters the patient's cardiac ejection profile from a pretreatment cardiac ejection profile. This has the effect of reducing the patient's blood pressure from the measured pretreatment blood pressure.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: March 19, 2019
    Assignee: BackBeat Medical, Inc.
    Inventors: Robert S. Schwartz, Robert A. Van Tassel
  • Publication number: 20190046760
    Abstract: A method of detecting and treating a microvascular obstruction is provided. In one embodiment, a catheter is provided for both detecting the microvascular obstruction and treating or removing the obstruction.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 14, 2019
    Applicant: Osprey Medical, Inc.
    Inventors: Robert S. Schwartz, Robert A. Van Tassel
  • Publication number: 20190001141
    Abstract: Methods and devices for reducing ventricle filling volume are disclosed. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated in a consistent way to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 3, 2019
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff
  • Patent number: 10118016
    Abstract: A method of detecting and treating a microvascular obstruction is provided. In one embodiment, a catheter is provided for both detecting the microvascular obstruction and treating or removing the obstruction.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 6, 2018
    Assignee: Osprey Medical, Inc.
    Inventors: Robert S. Schwartz, Robert A. Van Tassel
  • Publication number: 20180256899
    Abstract: Systems and methods for reducing ventricle filling volume are disclosed. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated at a consistent rate to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, a stimulation circuit may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 13, 2018
    Inventors: Yuval Mika, Darren Sherman, Robert S. Schwartz, Robert A. Van Tassel, Daniel Burkhoff