Patents by Inventor Scott Cadwallader

Scott Cadwallader 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).

  • Method and apparatus for indicating pressure in chest drainage devices
    Patent number: 7686801
    Abstract: An apparatus is provided for indicating the presence of pressure within a collection chamber of a device such as a chest drainage device. The apparatus includes a bladder configured to be positioned within the collection chamber or within another chamber in fluid flow communication with the collection chamber. The bladder has a concavity formed therein and configured to contract or expand in response to pressure in the collection chamber. The apparatus also includes surfaces associated with the bladder that are configured to move with respect to one another upon contraction or expansion of the concavity of the bladder, thereby indicating pressure within the collection chamber.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: March 30, 2010
    Assignee: Atrium Medical Corporation
    Inventors: Scott E. Corbeil, Nicholas Want, Theodore Karwoski, Scott Cadwallader, Adam Epstein
  • Release valve
    Publication number: 20070163652
    Abstract: A release valve including a top sheet; a bottom sheet sealed at a periphery to the top sheet at a perimeter seal; the bottom sheet including a release hole; the top sheet including an outlet. The top sheet and the bottom sheet provide one-way fluid flow from the release hole through the outlet.
    Type: Application
    Filed: January 4, 2007
    Publication date: July 19, 2007
    Inventors: Robert Pekar, Scott Cadwallader
  • Inflatable manometers
    Publication number: 20060081059
    Abstract: An inflatable air cell pressure transducer. The air cell has a concavity formed therein. The concavity has two edges, wherein increased pressure within the air cell causes contraction of the concavity moving the two edges closer.
    Type: Application
    Filed: December 2, 2005
    Publication date: April 20, 2006
    Inventors: Robert Pekar, Adam Epstein, Scott Cadwallader
  • Method and apparatus for indicating pressure in chest drainage devices
    Publication number: 20050016287
    Abstract: An apparatus is provided for indicating the presence of pressure within a collection chamber of a device such as a chest drainage device. The apparatus includes a bladder configured to be positioned within the collection chamber or within another chamber in fluid flow communication with the collection chamber. The bladder has a concavity formed therein and configured to contract or expand in response to pressure in the collection chamber. The apparatus also includes surfaces associated with the bladder that are configured to move with respect to one another upon contraction or expansion of the concavity of the bladder, thereby indicating pressure within the collection chamber.
    Type: Application
    Filed: August 18, 2004
    Publication date: January 27, 2005
    Inventors: Scott Corbeil, Nicholas Want, Theodore Karwoski, Scott Cadwallader, Adam Epstein