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:
May. 13, 2025
Filed:
Jun. 05, 2019
Fresenius Vial Sas, Brézins, FR;
Jürgen Leonhardt, Berlin, DE;
Fresenius Vial SAS, Brézins, FR;
Abstract
A system for identifying and/or measuring a substance concentration in the exhaled breath of a patient (), comprises a measurement apparatus () for performing an ion mobility spectrometry measurement of a sampling gas stream (A) obtained from the exhaled breath of the patient (), the measurement apparatus () comprising a drift detector () and at least one gas circuit () connected to the drift detector () for guiding an analytic gas stream (B), into which a sample of the sampling gas stream (A) is injectable, towards an inlet end () of the drift detector () and/or a drift gas stream (C) towards an outlet end () of the drift detector (), wherein the at least one gas circuit () comprises a molecular sieve filter () comprising a filter material () for filtering the analytic gas stream (B) and/or the drift gas stream (C). Herein, the filter material () comprises the zeolite NaY. In this way a system for measuring a substance concentration in the exhaled breath of a patient is provided which allows for accurate measurements using the ion mobility spectrometry (IMS).