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. 29, 2001
Filed:
May. 05, 1995
Richard G. Fiddian-Greene, Boston, MA (US);
Bo Holte, Charlottenlund, DK;
Joel C. Kent, Needham, MA (US);
Börje Tor Rantala, Helsinki, FI;
Instrumentarium Corp., Helsinki, FI;
Abstract
An improved remote sensing tonometric catheter apparatus (,) and method for sampling of a fluid or gas property of interest in a hollow internal organ. The tonometric catheter (,) assists in early detection of the problems of stress ulceration and/or intestinal ischemia. The tonometric catheter (,) can be one or more sampling chambers (,) for introduction into an internal organ or area adjacent thereto. Preferably, the wall (,) of the sampling chamber (,) is freely permeable to the gas or fluid to be measured by the sensor (,), but is poorly permeable to other gases or fluids which may interfere with the sensor (,).