The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2025
Filed:
Apr. 06, 2021
Accuvein Inc., Medford, NY (US);
Fred Wood, Medford, NY (US);
Vincent Luciano, Shoreham, NY (US);
Ron Goldman, Cold Spring Harbor, NY (US);
ACCUVEIN INC., Medford, NY (US);
Abstract
A vein imager includes: a laser emitting a light beam in a first optical path; and scanner directing the beam to form a spot of light on the target, and scanning the beam to move the spot rapidly on the target. An optical element bounces the beam of light from the first optical path onto a second optical path, directing the beam at the scanner. The scanner directs an image portion, received from the target, along the second optical path toward the photodiode, the image portion being an afterglow formed by differential reflection and absorption of the scanned spot by surrounding tissue and blood vessels. A lens is positioned/configured to limit a size of the photodiode FOV to a portion of the target surface, which size encompasses only the spot size and a portion of the afterglow. The limited photodiode FOV thus moves synchronously with the scanned spot.