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:
Aug. 05, 2008
Filed:
Oct. 14, 2002
Matti Veli Tapani Huiku, Espoo, FI;
Ilkka Korhonen, Lempäälä, FI;
Marcus Johannis Van Gils, Tampere, FI;
Mikko Oskari Jousi, Helsinki, FI;
Jyrki Mika Petteri Lötjönen, Valkeakoski, FI;
Matti Veli Tapani Huiku, Espoo, FI;
Ilkka Korhonen, Lempäälä, FI;
Marcus Johannis Van Gils, Tampere, FI;
Mikko Oskari Jousi, Helsinki, FI;
Jyrki Mika Petteri Lötjönen, Valkeakoski, FI;
GE Healthcare Finland Oy, , FI;
Abstract
The invention concerns a method and an apparatus for monitoring a condition of a patient under anesthesia or sedation. For this purpose there is a sensor for acquiring a signal that represents peripheral cardiovascular flow in the patient. Successive heart beat pulses are detected and predetermined pulse wave parameters are measured repeatedly in said signal, and predefined pulse wave parameters within said heart beat pulses are measured, too. At first, said predetermined pulse wave parameters in a number of successive heart beat pulses are compared in respect to possible occurrence of a substantial alteration. At second, if the alteration is noticed, a statistical reference value is calculated by deriving values from at least said predefined pulse wave parameters, and the change(s) between at least one predefined pulse wave parameter and said reference value is quantified. The results and/or intermediate results are finally displayed and/or recorded.