Patents by Inventor James L. Fitzsimmons

James L. Fitzsimmons 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).

  • Mask cushion and method of using same
    Patent number: 7007696
    Abstract: A nasal CPAP treatment apparatus is disclosed with a flow generator coupled to a nasal mask. The mask has a nasal cushion forming a nose-receiving cavity. The cushion has a triangularly-shaped frame of resilient material with a mask engaging portion connected by a side wall to a face engaging portion which has a nasal bridge region, a cheek region and a lip region. The cushion may have a portion of the side wall in the nasal bridge region being other than straight to provide an improved sealing in the nasal bridge region. A plurality of membranes, preferably three, of resilient material extend substantially around the triangularly-shaped frame. Some of the membranes are thicker in the lip region than in the nasal bridge region to improve fit of the cushion in use.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: March 7, 2006
    Assignee: Tiara Medical Systems, Inc.
    Inventors: David J. Palkon, Geoffrey P. Sleeper, Norbert E Cichon, James L. Fitzsimmons
  • Mask cushion and method of using same
    Publication number: 20030019495
    Abstract: A nasal CPAP treatment apparatus is disclosed with a flow generator coupled to a nasal mask. The mask has a nasal cushion forming a nose-receiving cavity. The cushion has a triangularly-shaped frame of resilient material with a mask engaging portion connected by a side wall to a face engaging portion which has a nasal bridge region, a cheek region and a lip region. The cushion may have a portion of the side wall in the nasal bridge region being other than straight to provide an improved sealing in the nasal bridge region. A plurality of membranes, preferably three, of resilient material extend substantially around the triangularly-shaped frame. Some of the membranes are thicker in the lip region than in the nasal bridge region to improve fit of the cushion in use.
    Type: Application
    Filed: May 16, 2002
    Publication date: January 30, 2003
    Inventors: David J. Palkon, Geoffrey P. Sleeper, Norbert E. Cichon, James L. Fitzsimmons
  • Cushion for respiratory mask
    Patent number: D464426
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: October 15, 2002
    Assignee: Tiara Medical Systems, Inc.
    Inventors: David J. Palkon, Geoffrey P. Sleeper, Norbert E. Cichon, James L. Fitzsimmons