| abstract |
The present invention is a multifunctional visceral catheter (1) having a self-guiding system in the form of one or more sensor systems (7, 14, 7', 14', 6, 12) which are sensitive to a predetermined analyte having a specific relationship to an organ associated with a given visceral venous system, such that values of the analyte within the visceral venous system are substantially different from values of the analyte outside the visceral venous system, e.g., galactose in the hepatic venous system or creatinine in the renal venous system. |