Patents Assigned to Dr. E. Fresenius Chemisch pharmazeutisch Industrie KG
  • Catheter device and system for continuous chemical analysis of body fluids in vivo
    Patent number: 4265249
    Abstract: A system for obtaining body fluids for continuous chemical analysis thereof includes a catheter for obtaining the material to be measured. The surface of the catheter is partially coated with a semi-permeable filter membrane. From the rear side of the filter membrane a plurality of channels are provided which communicate with a series of internal ducts which provide a fluid flow path for the material to be analyzed. The ducts are operatively coupled to a suction device pump and analyzing apparatus which are located remote from the catheter.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: May 5, 1981
    Assignee: Dr. E. Fresenius Chemisch pharmazeutisch Industrie KG
    Inventors: Johannes G. Schindler, Wilfried Schael