Patents Represented by Attorney David G. Sonnenschein Nath & Rosenthal Rosenbaum

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  • Radially expandable tubular polytetrafluoroethylene grafts and method of making same
    Patent number: 6039755
    Abstract: Tubular ePTFE materials which are capable of being radially expanded under the influence of a radially outward force applied from the lumen of the ePTFE tubular material to substantially uniformly radially deform the ePTFE material. The ePTFE material is radially expandable to a diameter 700% its unexpanded diameter under the influence of pressures less than 6 atm while retaining the structural integrity of the ePTFE microstructure. Conservation of the structural integrity of the ePTFE material is determined by conservation of the ePTFE microstructure structural integrity.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: March 21, 2000
    Assignee: Impra, Inc., a Division of C.R. Bard, Inc.
    Inventors: Tarun J. Edwin, Fariba Hurry, Christopher E. Banas
  • Modular multi-stage water filter apparatus
    Patent number: 5891333
    Abstract: A multi-stage, modular water filter apparatus having at least first and second filter housings engageable with one and other, and each being engageable with a water inlet member, a water outlet member and a fluid filter cartridge for removing undesired components in a water supply.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: April 6, 1999
    Inventor: George E. Ferguson
  • Endoscopic working channel and method of making same
    Patent number: 5885209
    Abstract: A polytetrafluoroethylene (PTFE) or expanded polytetrafluoroethylene (ePTFE) flexible and bendable working channel section which is circumferentially reinforced against kinking and which is adapted to be insertable, in-line, with the rigid section of the endoscopic working channel.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: March 23, 1999
    Inventor: Anthony D. Green
  • Computer-implemented method for profiling medical claims
    Patent number: 5835897
    Abstract: A computer-implemented program for profiling medical claims to assist health care managers in determining the cost-efficiency and service quality of health care providers. The software program allows an objective means for measuring and quantifying health, care services. An episode treatment group (ETG) is a patient classification system with groups that are clinically homogenous (similar cause of illness and treatment) and statistically stable. ETG grouper software uses service or segment-level claim data as input data and assigns each service to the appropriate episode. The program identifies concurrent and recurrent episodes, flags records, creates new groupings, shifts groupings for changed conditions, selects the most recent claims, resets windows, makes a determination if the provider is an independent lab and continues to collect information until an absence of treatment is detected.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: November 10, 1998
    Assignee: Symmetry Health Data Systems
    Inventor: Dennis K. Dang