Method of locating and marking veins
US5678555A · kind A · utility
132Cited by
6References
3Claims
0Family size
Inventor
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/489
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for locating blood vessels in a live human body utilizing infrared scanning and imaging techniques to distinguish relative temperature differences between blood carrying vessels and surrounding human tissue. An infrared imaging camera is used to detect the emissions of an object to differentiate the specific elevated surface temperature associated with blood vessels in a human body and surrounding tissue and marking same by the introduction of a marking device visible through temperature differentiation within the infrared imaging field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.