Infiltration detection apparatus
US4647281A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Feb 20, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/16836
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus used in association with a needle for infusing a liquid. This apparatus is for detecting the infiltration of the liquid through the vascular wall into the perivascular tissues. The apparatus includes a non-invasive conformal microwave antenna means adapted to be positioned over the area where liquid infusion occurs. A microwave radiometer connects from the antenna means for detecting sub-cutaneous temperature at the site thereof. A reference antenna means is also employed so that a proper temperature differential can be established. In an alternate version of the invention, switching means is provided so that upon detecting an alarm condition, the liquid can be immediately terminated and a neutralizing agent can be introduced to the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.