Patents by Inventor Mark E. Wendler

Mark E. Wendler 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: 8303529
    Abstract: A cardiotomy and venous blood reservoir, including a housing assembly, a venous inlet port, a venous sub-assembly, a cardiotomy inlet port, and a cardiotomy sub-assembly. The housing forms a chamber. The venous sub-assembly includes a downtube and a bowl. A diameter of the downtube lumen increases to a downstream end. The bowl forms a floor surface for receiving flow from the lumen. The cardiotomy sub-assembly includes a dish and an inner post. The dish defines an aperture. The inner post extends from the dish and forms a guide surface received within the central aperture and forming an undulating curvature increasing to a diameter greater than the diameter of the central aperture. Cardiotomy liquid drops from the dish fall on to the undulating, closely positioned guide surface with minimal splashing.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 6, 2012
    Assignee: Medtronic, Inc.
    Inventors: Mark E. Wendler, Ana R. Menk, Eric R. Fox, Ningze Sun, Timothy D. Groen, Katherine S. Olig
  • Patent number: 8177735
    Abstract: A cardiotomy and venous blood reservoir including a housing assembly, a downtube, and a bowl. The housing assembly forms a chamber. The downtube extends from an inlet port to a downstream end within the chamber. A diameter of the tube lumen increases to the downstream end. The bowl forms a floor surface shoulder, intermediate segment, and protrusion. The shoulder circumferentially surrounds, and is spatially above, the downstream end. The intermediate segment extends radially inwardly and downwardly from the shoulder to a bottom face. The protrusion extends radially inwardly and upwardly from the bottom face to a center that is aligned with the lumen and below the downstream end. The flared inner diameter of the lumen reduces fluid velocity as venous blood enters the reservoir. The bowl floor surface gently receives the incoming venous blood at the protrusion, and smoothly guides the blood flow.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: May 15, 2012
    Assignee: Medtronic, Inc.
    Inventors: Mark E. Wendler, Ana R. Menk, Eric R. Fox, Ningze Sun, Timothy D. Groen, Walt L. Carpenter
  • Publication number: 20100268148
    Abstract: A cardiotomy and venous blood reservoir, including a housing assembly, a venous inlet port, a venous sub-assembly, a cardiotomy inlet port, and a cardiotomy sub-assembly. The housing forms a chamber. The venous sub-assembly includes a downtube and a bowl. A diameter of the downtube lumen increases to a downstream end. The bowl forms a floor surface for receiving flow from the lumen. The cardiotomy sub-assembly includes a dish and an inner post. The dish defines an aperture. The inner post extends from the dish and forms a guide surface received within the central aperture and forming an undulating curvature increasing to a diameter greater than the diameter of the central aperture. Cardiotomy liquid drops from the dish fall on to the undulating, closely positioned guide surface with minimal splashing.
    Type: Application
    Filed: April 30, 2010
    Publication date: October 21, 2010
    Applicant: Medtronic, Inc.
    Inventors: Mark E. Wendler, Ana R. Menk, Eric R. Fox, Ningze Sun, Timothy D. Groen, Katherine S. Olig
  • Publication number: 20100211028
    Abstract: A cardiotomy and venous blood reservoir including a housing assembly, a downtube, and a bowl. The housing assembly forms a chamber. The downtube extends from an inlet port to a downstream end within the chamber. A diameter of the tube lumen increases to the downstream end. The bowl forms a floor surface shoulder, intermediate segment, and protrusion. The shoulder circumferentially surrounds, and is spatially above, the downstream end. The intermediate segment extends radially inwardly and downwardly from the shoulder to a bottom face. The protrusion extends radially inwardly and upwardly from the bottom face to a center that is aligned with the lumen and below the downstream end. The flared inner diameter of the lumen reduces fluid velocity as venous blood enters the reservoir. The bowl floor surface gently receives the incoming venous blood at the protrusion, and smoothly guides the blood flow.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 19, 2010
    Inventors: Mark E. Wendler, Ana R. Menk, Eric R. Fox, Ningze Sun, Timothy D. Groen, Walt L. Carpenter