IP Library › Granted Patent US 12,193,838
Granted Patent B2
US 12,193,838 · App. 17/356,558 · Granted Jan 14, 2025

Scanned laser vein contrast enhancer with reduced laser intensity during scan line reversals

Inventors: Fred Wood (Medford, NY); Ron Goldman (Cold Spring Harbor, NY); Vincent Luciano (Shoreham, NY); Stephen P. Conlon (Glen Mills, PA)
Assignee: AccuVein, Inc.
A61B5/489A61B5/0062A61B5/0064A61B5/0079A61B5/742A61B90/36A61B2090/366A61B2560/0425A61B2562/0233
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Quick Facts
Patent No.
US 12,193,838
App. No.
17/356,558
Granted
Jan 14, 2025
Kind
B2
Abstract

The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.

Claims (19)

1. A portable hand-held miniature vein enhancer, for use in imaging subcutaneous veins beneath a target surface, said vein imager comprising:

a laser, said laser configured to emit a beam of light at a selective wavelength;

one or more mirrors, said one or more mirrors configured to respectively oscillate, at a predetermined frequency and phase, about one or more corresponding fulcrums, and being further configured to receive said beam of light from said one laser, said beam of light thereby reflected onto the target surface to create a spot of light thereon;

a mirror drive system, said mirror drive system configured to drive said one or more mirrors to respectively oscillate about said one or more corresponding fulcrums, to drive said spot of light to move upon the target in a pattern;

wherein each said oscillation comprises:

said one or more mirrors being driven to drive said spot in a first direction during a first part of said pattern, said one or more mirrors being decelerated to a full stop during a second part of said pattern, said one or more mirrors subsequently being accelerated in a reverse direction during a third part of said pattern, and said one or more mirrors being driven to drive said spot in the reverse direction during a fourth part of said pattern;

one or more drive circuits, said one or more drive circuits configured to change an intensity of said laser during each said oscillation from a first intensity, being a non-zero intensity, to a second intensity being a zero intensity only when said one or more mirrors is positioned to drive said spot in proximity to said full stop; and

wherein said one or more drive circuits are configured to save power during said second and third parts of said pattern that are unusable because of slowed movement of said one or more mirrors as a result of said change from said first intensity of said laser to said second intensity of said laser.

2. The portable hand-held miniature vein enhancer according to claim 1 further comprising a housing configured to house said laser, said one or more mirrors, said mirror drive system, and said one or more drive circuits.

3. The portable hand-held miniature vein enhancer according to claim 2 ,

wherein said housing comprises an exit window; and

wherein said mirror drive system is configured to drive said one or more mirrors to oscillate to direct said laser light out through said exit window.

4. The portable hand-held miniature vein enhancer according to claim 3 further comprising: a battery compartment formed in a portion of said housing; and a door configured to releasably cover said battery compartment.

5. The portable hand-held miniature vein enhancer according to claim 4 wherein said pattern is a pattern being from the group of patterns consisting of: a raster pattern, a lissajous pattern, an ellipse pattern; a circle pattern; and a spiral pattern.

6. The miniature vein enhancer according to claim 5 wherein said pattern is a collapsing pattern selected from the group of collapsing patterns consisting of: a collapsing ellipse pattern; a collapsing circle pattern; and a spiral pattern.

7. The portable hand-held miniature vein enhancer according to claim 6 wherein a portion of said housing is configured as a handle.

8. The portable hand-held miniature vein enhancer according to claim 7 further comprising an on-off switch positioned proximate to said handle.

9. The portable hand-held miniature vein enhancer according to claim 8 further comprising a plurality of vent openings in said housing, to permit cooling of a portion of said miniature vein enhancer.

10. The portable hand-held miniature vein enhancer according to claim 9 further comprising one or more heat sinks configured to draw heat away from said laser.

Assignments (2)
SECURITY INTEREST Recorded Mar 23, 2022
From: ACCUVEIN INC.
To: COURAGE CREDIT OPPORTUNITIES FUND IV, L.P.
Reel/Frame 059483/0143 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2021
From: WOOD, FRED; GOLDMAN, RON; CONLON, STEPHEN P.; LUCIANO, VINCENT
To: ACCUVEIN INC.
Reel/Frame 056655/0043 →
Continuity (8)
Continuation 16238646 · Jan 3, 2019
Continuation 14855502 · Sep 16, 2015
Continuation 14168158 · Jan 30, 2014
Continuation 13649234 · Oct 11, 2012
Continuation 11807255 · May 25, 2007
Continuation In Part 11478322 · Jun 29, 2006
Provisional Application 60817623 · Jun 29, 2006
Related Publication 20210338151A1 · Nov 4, 2021
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