Method and device for detection of tissue infiltration
First Claim
1. A device for the detection of infiltration of intravenously delivered fluids into tissue surrounding an intravenous insertion site comprising radiation monitoring means for measuring changes in the relationship between a plurality of wavelengths of electromagnetic radiation traveling in said tissue upon the occurrence of tissue infiltration by said fluids in order to prevent tissue damage, said radiation monitoring means including:
- (a) a patch placed over said intravenous insertion site;
(b) a plurality of electromagnetic radiation sources incorporated in said patch, said radiation sources directing electromagnetic radiation at said tissue;
(c) radiation detection means additionally incorporated in said patch, said radiation detection means being capable of detecting said wavelengths of electromagnetic radiation and converting them to electrical signals; and
(d) timing synchronization means electrically connected to said electromagnetic radiation sources, said timing synchronization means being capable of regulating the activation of said electromagnetic radiation sources.
3 Assignments
0 Petitions
Accused Products
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.
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Citations
10 Claims
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1. A device for the detection of infiltration of intravenously delivered fluids into tissue surrounding an intravenous insertion site comprising radiation monitoring means for measuring changes in the relationship between a plurality of wavelengths of electromagnetic radiation traveling in said tissue upon the occurrence of tissue infiltration by said fluids in order to prevent tissue damage, said radiation monitoring means including:
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(a) a patch placed over said intravenous insertion site; (b) a plurality of electromagnetic radiation sources incorporated in said patch, said radiation sources directing electromagnetic radiation at said tissue; (c) radiation detection means additionally incorporated in said patch, said radiation detection means being capable of detecting said wavelengths of electromagnetic radiation and converting them to electrical signals; and (d) timing synchronization means electrically connected to said electromagnetic radiation sources, said timing synchronization means being capable of regulating the activation of said electromagnetic radiation sources. - View Dependent Claims (2)
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3. A device for the detection of infiltration of intravenously delivered fluids into tissue surrounding an intravenous insertion site comprising radiation monitoring means for measuring changes in the relationship between a plurality of wavelengths of electromagnetic radiation traveling in said tissue upon the occurrence of tissue infiltration by said fluids in order to prevent tissue damage, said radiation monitoring means including:
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(a) a patch placed over said intravenous insertion site; (b) a plurality of electromagnetic radiation sources incorporated in said patch, said radiation sources directing electromagnetic radiation at said tissue; (c) radiation detection means additionally incorporated in said patch, said radiation detection means being capable of detecting said wavelengths of electromagnetic radiation and converting them to electrical signals; (d) timing synchronization means electrically connected to said electromagnetic radiation sources, said timing synchronization means being capable of regulating the activation of said electromagnetic radiation sources; (e) signal measuring and separation means electrically connected to said radiation detection means, said signal measuring and separation means being capable of receiving said electrical signals from said radiation detection means and of quantifying said electrical signals; and (f) signal processing means electrically connected to said signal measuring and separation means, said signal processing means being capable of comparing the quantified electrical signal measurements from said electromagnetic radiation sources and thereby detecting tissue infiltration. - View Dependent Claims (4, 5, 6, 7)
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8. A method for detecting an area of tissue infiltration by intravenously delivered fluids comprising the steps of:
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(a) alternately exposing said area to a plurality of wavelengths of electromagnetic radiation and then to no electromagnetic radiation other than ambient light; and (b) monitoring the changes in the relationship between the amounts of detectable electromagnetic radiation of each wavelength over time as compared to the relationship between the amounts of detectable electromagnetic radiation of each wavelength in the absence of tissue infiltration at the time when the intravenous fluid delivery is commenced. - View Dependent Claims (9, 10)
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Specification