Patents by Inventor Adrienne Watral

Adrienne Watral 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).

  • Pressure measuring syringe
    Patent number: 8707789
    Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The first portion of the spring can be coupled to the piston to form a sliding seal with an inner wall of the syringe, and the second portion of the spring can move longitudinally within the syringe without sealing contact.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 29, 2014
    Assignees: Beth Israel Deaconess Medical Center, Massachusetts Institute of Technology
    Inventors: Joan E. Spiegel, Alexander H. Slocum, Adrienne Watral, Samuel Duffley, Alexander Slocum, Jr.
  • PRESSURE MEASURING SYRINGE
    Publication number: 20120312300
    Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The first portion of the spring can be coupled to the piston to form a sliding seal with an inner wall of the syringe, and the second portion of the spring can move longitudinally within the syringe without sealing contact.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 13, 2012
    Inventors: Joan E. Spiegel, Alexander H. Slocum, Adrienne Watral, Samuel Duffley, Alexander Slocum, JR.
  • Pressure measuring syringe
    Patent number: 8291768
    Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The fluid chamber can be in fluid communication with a cuff of an inflatable medical device, such as an endotracheal tube, such that the measured pressure comprises the fluid pressure within the cuff.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 23, 2012
    Assignees: Beth Israel Deaconess Medical Center, Massachusetts Institute of Technology
    Inventors: Joan E. Spiegel, Alexander H. Slocum, Adrienne Watral, Samuel Duffley