Infrared aided method and apparatus for venous examination

Details Infrared aided method and apparatus for venous examination Infrared aided method and apparatus for venous examination

1996-03-20

1997-03-04

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2503418, 128664, 356 51, G01J 350

Patent

active

056082100

ABSTRACT:
A device for aiding a technician to locate a vein for inserting a hyperdermic needle therein in which, in one embodiment, the technician dons a headpiece supporting an infrared light source illuminating an appropriate area of the flesh so that a view is generated showing the location of a subcutaneous vein. The headpiece also supports an infrared sensitive video camera and monitor screen in front of one eye and an opaque shield over the other eye. The lines of sight of the one eye viewing the screen is coincident with the line of sight of the camera and both lines of sight are directed toward the vein of the patient. The tip of the needle is moved into the line of sight then moved along the line of sight to the vein. In another embodiment, two cameras and screens are provided for viewing by both eyes and each camera and monitor can be positioned with line of sight coincident with the line of sight of the respective eye.

REFERENCES:
patent: 3893447 (1975-07-01), Hochheimer et al.
patent: 4817622 (1989-04-01), Pennypacker et al.
patent: 5086229 (1992-02-01), Rosenthal et al.

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