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:
Oct. 31, 1989
Filed:
Jun. 18, 1987
Applicant:
Inventors:
Judy M Atkins, Hillsborough, NC (US);
Benjamin J Comfort, Hillsborough, NC (US);
Ralph A Liebelt, Durham, NC (US);
Assignee:
Smith & Nephew, Inc., Itasca, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128664 ; 128665 ; 340573 ;
Abstract
The invention comprises a noninvasive method and device that allows detection of tissue infiltration during the administration of fluids. In the invention, the tissue surrounding the site of intravenous injection is exposed to a plurality of wavelengths of electromagnetic radiation when no infiltration is occurring to determine a baseline reading. Changes in the relative levels of detected radiation at each wavelength as compared to the baseline reading indicate tissue infiltration.