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. 30, 2002
Filed:
Feb. 28, 2001
Applicant:
Inventor:
Avraharn Shekalim, Nesher, IL;
Assignee:
L.G.MED Ltd., Migdal Haemek, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 3/100 ; A61B 5/05 ;
U.S. Cl.
CPC ...
A61M 3/100 ; A61B 5/05 ;
Abstract
A method and device for detecting extravasation employs a non-invasive sensor system deployed on the skin to identify changes in both subcutaneous interstitial fluid pressure and skin temperature. Preferably, the system monitors the sensor system outputs to identify a sequence of a skin temperature drop followed by a interstitial fluid pressure increase. This pattern is distinctive of the occurrence of extravasation, thereby providing very reliable detection. Most preferably, a simple sensor structure based upon multiple piezoelectric film sensors is used.