Patents by Inventor Robert S. Schwartz

Robert S. Schwartz 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: 20100285510
    Abstract: Use of pregnancy-associated plasma protein-A as a marker for inflammatory conditions, and in particular, for acute coronary syndromes is described.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 11, 2010
    Inventors: Cheryl A. Conover, Antonio Bayes-Genis, David R. Holmes, Robert S. Schwartz
  • Publication number: 20100228277
    Abstract: The present invention provides an aortic valvuloplasty catheter which, in one preferred embodiment, has a tapered distal balloon segment that anchors within the left ventricle outflow track of the patient's heart and a rounded proximal segment which conforms to the aortic sinuses forcing the valve leaflets open. In addition, this embodiment of the valvuloplasty catheter includes a fiber-based balloon membrane, a distal pigtail end hole catheter tip, and a catheter sheath.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 9, 2010
    Inventors: Wesley Pedersen, Robert A. Van Tassel, Robert S. Schwartz, Gregory G. Brucker, Skott E. Greenhalgh
  • Publication number: 20100211155
    Abstract: The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 19, 2010
    Inventors: William Swanson, Richard Cornelius, Robert S. Schwartz
  • Publication number: 20100174183
    Abstract: A method and device for the simultaneous or sequential introduction of multiple fluids into the bloodstream including a multiple lumen catheter with corresponding multiple hole sets. By introducing a second fluid such as saline, the concentration and bolus of a first fluid, such as a contrast agent, can be controlled and optimized.
    Type: Application
    Filed: November 28, 2007
    Publication date: July 8, 2010
    Applicant: MEDRAD, INC.
    Inventors: Robert S. Schwartz, Robert A. Van Tassel, Eugene A. Gelblum, Alan D. Hirschman, John F. Kalafut, David M. Reilly, Edward J. Rhinehart, Frederick W. Trombley, III, Arthur E. Uber, III
  • Publication number: 20100174304
    Abstract: The present invention provides a mechanical injury device having cutting elements for injuring tissue and thereby creating electrical block that can prevent atrial fibrillation. These cutting elements may preferably be removable, breakaway, or simply integral to the injury device and may be delivered, for example, by catheter or hand tool.
    Type: Application
    Filed: March 17, 2010
    Publication date: July 8, 2010
    Inventors: Robert S. Schwartz, Richard Cornelius, William Swanson
  • Publication number: 20100168649
    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: August 1, 2007
    Publication date: July 1, 2010
    Applicant: Osprey Medical, Inc.
    Inventors: Robert S. Schwartz, Robert A. Van Tassel
  • Patent number: 7744620
    Abstract: The present invention provides an aortic valvuloplasty catheter which, in one preferred embodiment, has a tapered distal balloon segment that anchors within the left ventricle outflow track of the patient's heart and a rounded proximal segment which conforms to the aortic sinuses forcing the valve leaflets open. In addition, this embodiment of the valvuloplasty catheter includes a fiber-based balloon membrane, a distal pigtail end hole catheter tip, and a catheter sheath.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: June 29, 2010
    Assignee: InterValve, Inc.
    Inventors: Wesley Pedersen, Robert A. Van Tassel, Robert S. Schwartz, Gregory G. Brucker, Skott E. Greenhalgh
  • Patent number: 7727184
    Abstract: A catheter delivery system for delivering a treatment substance to an occlusion in a lumen of a tubular vessel includes a tubular catheter and a treatment substance. The tubular catheter includes a central lumen passing between a proximal end and a distal end adjacent to an inflatable balloon. The treatment substance is in a form that is configured to be deliverable through the central lumen of the catheter into the lumen of the tubular vessel and to solidify in the vessel.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: June 1, 2010
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: David R. Holmes, Jr., Robert S. Schwartz
  • Patent number: 7723049
    Abstract: Use of pregnancy-associated plasma protein-A as a marker for inflammatory conditions, and in particular, for acute coronary syndromes is described.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: May 25, 2010
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Cheryl A. Conover, Antonio Bayes-Genis, David R. Holmes, Robert S. Schwartz
  • Patent number: 7618432
    Abstract: The present invention provides an aortic valvuloplasty catheter which, in one preferred embodiment, has a tapered distal balloon segment that anchors within the left ventricle outflow track of the patient's heart and a rounded proximal segment which conforms to the aortic sinuses forcing the valve leaflets open. In addition, this embodiment of the valvuloplasty catheter includes a fiber-based balloon membrane, a distal pigtail end hole catheter tip, and a catheter sheath.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: November 17, 2009
    Assignee: InterValve, Inc.
    Inventors: Wesley Pedersen, Robert A. Van Tassel, Robert S. Schwartz, Gregory G. Brucker, Skott E. Greenhalgh
  • Publication number: 20090210050
    Abstract: An implantable stent having surface features adapted to promote an organized growth pattern of infiltrating cells when implanted in a tubular organ is provided. The surface features comprise depressions, pores, projections, pleats, channels or grooves in the stent body and are designed to increase turbulence or stagnation in the flow of a liquid, such as blood through the stent, and/or to promote the growth of infiltrating cells in an organized pattern. Alternatively, the invention stent can be populated with living cells prior to implant and can be heatable from an external source of energy, thereby inducing production of therapeutic bioactive agents from ingrowing cells. The invention also provides an implantable heatable stent for transcutaneously monitoring the flow of fluid through a lumen into which the stent is implanted by measuring the rate at which the heated stent cools in response to blood flow when the source of heat is removed.
    Type: Application
    Filed: April 24, 2009
    Publication date: August 20, 2009
    Inventors: Robert A. Van Tassel, David R. Holmes, JR., Robert S. Schwartz
  • Publication number: 20090197342
    Abstract: Use of pregnancy-associated plasma protein-A as a marker for inflammatory conditions, and in particular, for acute coronary syndromes is described.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 6, 2009
    Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: Cheryl A. Conover, Antonio Bayes-Genis, David R. Holmes, Robert S. Schwartz
  • Publication number: 20090171445
    Abstract: The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 2, 2009
    Inventors: William Swanson, Richard Cornelius, Robert S. Schwartz
  • Publication number: 20090171431
    Abstract: The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 2, 2009
    Inventors: William Swanson, Richard Cornelius, Robert S. Schwartz
  • Publication number: 20090118726
    Abstract: Systems and methods for transeptal cardiac procedures are disclosed. A patient treatment device in accordance with a particular embodiment includes a catheter having a proximal end, a distal end, a working portion toward the distal end, and an electrical energy path coupleable to a source of electrical energy. The device can further include a tissue penetrating member carried by the catheter and an electrode device carried by the working portion of the catheter and movable along the tissue penetrating member. The electrode device can include a collapsible stranded conductive material coupled to the electrical signal path and being changeable between a deployed position and a stowed position. The conductive material can be elongated along a deployment axis when in the stowed position, and can be contracted along the deployment axis and expanded transverse to the deployment axis when in the deployed position.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 7, 2009
    Applicant: CoAptus Medical Corporation
    Inventors: David C. Auth, Ryan E. Kaveckis, Larry B. Kulesa, Joseph E. Eichinger, David A. Herrin, Mark A. Tempel, Robert S. Schwartz
  • Publication number: 20090018608
    Abstract: The method calls for the periodic electrical stimulation of the heart muscle to alter the ejection profile of the heart thus reducing the observed blood pressure of the patient. The therapy may be invoked by an implantable blood pressure sensor associated with a pacemaker like device.
    Type: Application
    Filed: June 10, 2008
    Publication date: January 15, 2009
    Inventors: Robert S. Schwartz, Robert van Tassel, Benjamin Pless
  • Patent number: 7252654
    Abstract: The invention provides surgical needles with a porous distal portion from which a liquid injectate will weep or ooze multidirectionally under injection pressure while the porous distal portion of the needle is inserted into a body surface. The porous distal portion of the needle can be fabricated from a porous carbon, metal, ceramic or polymer and preferably has a decreasing gradient of impedance to fluid flowing to the point of the needle to compensate for the falling off of injection pressure as fluid moves towards the point, thereby ensuring uniform weeping of the injectate along the injection course. The needle is adapted for attachment to a catheter or syringe. In another embodiment, a surgical assemblage is provided wherein a porous distal portion having similar fluid flow characteristics is located along the distal end of a catheter, and a needle point is attached to the distal end of the catheter (e.g., a steerable catheter) for piercing tissue.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: August 7, 2007
    Assignee: TriCardia, LLC
    Inventors: Robert A. VanTassel, David R. Holmes, Jr., Robert S. Schwartz
  • Patent number: 7235096
    Abstract: An implantable stent having surface features adapted to promote an organized growth pattern of infiltrating cells when implanted in a tubular organ is provided. The surface features comprise depressions, pores, projections, pleats, channels or grooves in the stent body and are designed to increase turbulence or stagnation in the flow of a liquid, such as blood through the stent, and/or to promote the growth of infiltrating cells in an organized pattern. Alternatively, the invention stent can be populated with living cells prior to implant and can be heatable from an external source of energy, thereby inducing production of therapeutic bioactive agents from ingrowing cells. The invention also provides an implantable heatable stent for transcutaneously monitoring the flow of fluid through a lumen into which the stent is implanted by measuring the rate at which the heated stent cools in response to blood flow when the source of heat is removed.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: June 26, 2007
    Assignee: TriCardia, LLC
    Inventors: Robert A. Van Tassel, David R. Holmes, Jr., Robert S. Schwartz
  • Patent number: 6969373
    Abstract: A medical device is provided having a needle or a catheter, insertable into a living body, which defines a plurality of holes in fluid communication with a central lumen. The holes may be of various patterns located and angled to create a desired injectate cloud pattern when an injectate is forced through the central lumen and through the plurality of holes. One embodiment provides various designs including a moveable sheath or stylet used to selectively occlude one or more of the holes while in use, thereby providing an operating physician a way to manipulate the cloud pattern anytime during the introduction of the injectate. A reducer may be used in conjunction with these needles which provides an increased degree of control when injecting very small quantities of fluid.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: November 29, 2005
    Assignee: Tricardia, LLC
    Inventors: Robert S. Schwartz, Robert A. Van Tassel, David R. Holmes
  • Patent number: 6949087
    Abstract: The invention provides surgical needles with a porous distal portion from which a liquid injectate will weep or ooze multidirectionally under injection pressure while the porous distal portion of the needle is inserted into a body surface. The porous distal portion of the needle can be fabricated from a porous carbon, metal, ceramic or polymer and preferably has a decreasing gradient of impedance to fluid flowing to the point of the needle to compensate for the falling off of injection pressure as fluid moves towards the point, thereby ensuring uniform weeping of the injectate along the injection course. The needle is adapted for attachment to a catheter or syringe. In another embodiment, a surgical assemblage is provided wherein a porous distal portion having similar fluid flow characteristics is located along the distal end of a catheter, and a needle point is attached to the distal end of the catheter (e.g., a steerable catheter) for piercing tissue.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: September 27, 2005
    Assignee: Tricardia, LLC
    Inventors: Robert A. VanTassel, David R. Holmes, Jr., Robert S. Schwartz