Patents by Inventor Roland T. Stafford

Roland T. Stafford 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).

  • Alignment and attachment of a heat exchanger cartridge to a pump device
    Patent number: 7896834
    Abstract: A pump system selectably controls the temperature, flow rate, flow volume, and flow pressure of a fluid being infused into a patient's body. The pump system includes a cartridge and components that removably connect with a pump housing and corresponding components, providing simple attachment of the cartridge to the pump housing. The pump housing includes a pressure sensor, a bubble detector, and a temperature sensor on a first side of the pump housing, and an engaging actuator and a central controller. The cartridge includes on a first side a heat exchanger, a pressure receptor correspondingly aligned with the pressure sensor, and a detector interface correspondingly aligned with the bubble detector and temperature sensor. Upon aligning the cartridge with the pump housing and actuating the engaging actuator, the pressure receptor communicates with the pressure sensor and the detector interface aligns with the bubble detector and temperature sensor.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: March 1, 2011
    Assignee: Smisson-Cartledge Biomedical LLC
    Inventors: Hugh F. Smisson, III, Richard G. Cartledge, David C. Field, William J. Jaecklein, Michael L. Koltz, Harvey A. Lewis, Jr., Bradford J. Rainier, Roland T. Stafford
  • Alignment and Attachment of a Heat Exchanger Cartridge to a Pump Device
    Publication number: 20080146995
    Abstract: A pump system selectably controls the temperature, flow rate, flow volume, and flow pressure of a fluid being infused into a patient's body. The pump system includes a cartridge and components that removably connect with a pump housing and corresponding components, providing simple attachment of the cartridge to the pump housing. The pump housing includes a pressure sensor, a bubble detector, and a temperature sensor on a first side of the pump housing, and an engaging actuator and a central controller. The cartridge includes on a first side a heat exchanger, a pressure receptor correspondingly aligned with the pressure sensor, and a detector interface correspondingly aligned with the bubble detector and temperature sensor. Upon aligning the cartridge with the pump housing and actuating the engaging actuator, the pressure receptor communicates with the pressure sensor and the detector interface aligns with the bubble detector and temperature sensor.
    Type: Application
    Filed: August 7, 2007
    Publication date: June 19, 2008
    Applicant: SMISSON-CARTLEDGE BIOMEDICAL LLC
    Inventors: Hugh F. Smisson, Richard G. Cartledge, David C. Field, William J. Jaecklein, Michael L. Koltz, Harvey A. Lewis, Bradford J. Rainier, Roland T. Stafford