The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2003
Filed:
Jul. 20, 2001
Roche Diagnostics Corporation, Indianapolis, IN (US);
Abstract
The invention concerns a microdialysis system comprising a microdialysis probe ( ) that can be inserted into organic tissue ( ) and has a dialysis membrane ( ) to separate a probe channel ( ) filled with perfusion fluid from the tissue ( ), a sensor cell ( ) to determine the concentration of components and especially glucose in the perfusion fluid that is conveyed from the microdialysis probe ( ) and a transport device ( ) to convey the perfusion fluid through the probe channel ( ) of the microdialysis probe ( ) to the sensor cell ( ). In order to enable a substantially pressureless transport of perfusion fluid through the microdialysis probe and thus to prevent undesired passage of fluid through the dialysis membrane ( ), it is proposed that the transport device ( ) has a pressure pump unit ( ) connected on the pressure side to the inlet ( ) of the probe channel ( ) and a suction pump unit ( ) connected on the suction side to the outlet ( ) of the probe channel ( ) that can be operated simultaneously with the pressure pump unit ( ).