Infrared aided method and apparatus for venous examination
US5519208A · kind A · utility
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/427
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for gaining intravenous access including a source of radiation for irradiating an area of the patient wherein the radiation has a wavelength such that the radiation is absorbed in areas containing veins and reflected in all other areas thereby forming a view which is seen through a screen to be the area where venous structure appears as dark lines thereby enabling a user to position the tip of a hypodermic needle at an appropriate location for drawing blood. In one arrangement, the apparatus is mounted on the head of the user. In another arrangement the device is mounted on a floor stand. In another embodiment, the apparatus is equipped with an image intensifier. In another embodiment, a mirror is provided enabling the user to view the selected area and the image simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.