IP Library Granted Patent US 7,438,719
Granted Patent B2
US 7,438,719 · App. 10/651,906 · Granted Oct 21, 2008

Phototherapy system and device

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Quick Facts
Patent No.
US 7,438,719
App. No.
10/651,906
Granted
Oct 21, 2008
Kind
B2
Abstract

A phototherapy system and device is disclosed, including an array of light sources from at least two distinct spectral light regions. The first spectral light region represents the treatment color, and thus is chosen for its phototherapeutic value. For instance, blue light may be the treatment color for hyperbilirubinemia. The second spectral light region represents the balancing color, and is chosen for its ability to mitigate discomfort that may be caused by viewing the treatment color. When blue is the treatment color, yellow has been found to be an effective balancing color.

Claims (10)

1. A method of modifying a health care worker's perception of a plurality of limited spectral range treatment color light sources, comprising:

causing a subject to receive light from a first plurality of limited spectral range balancing color light sources having a wavelength of between 547 nm and 619 nm while said subject is receiving light from treatment color light sources having a wavelength of between 400 nm and 520 nm, wherein at least one individual has a perception of a blended color, said perception comprising said treatment color light sources and said balancing color light sources, and wherein the ratio of said treatment light sources to said balancing color light sources is between approximately 3:1 and approximately 7:1.

2. The method according to claim 1 , wherein the ratio of said treatment light sources to said balancing color light sources is approximately 3:1.

3. A phototherapy system, comprising:

a limited spectral range treatment light source emitting light having a wavelength of between 400 nm and 520 nm;

a first limited spectral range balancing light source emitting light having a wavelength of between 547 nm and 619 nm;

wherein the ratio of intensity of said treatment light source to said balancing light source is between approximately 3:1 and approximately 7:1; and

wherein there are a plurality of said treatment light sources and said balancing light sources, and wherein the ratio of said treatment light sources to said balancing light sources is approximately 3:1.

4. An array of phototherapeutic lights sources, comprising limited spectral range lights of a treatment color having a wavelength of between 400 nm and 520 nm and limited spectral range lights of a balancing color having a wavelength of between 547 nm and 619 nm, wherein said balancing color is chosen for its ability to mitigate the health or comfort effects on humans from viewing said treatment color; and wherein the ratio of said treatment light sources to said balancing light sources is approximately 3:1.

5. The array according to claim 4 , wherein said treatment color is blue and said balancing color is yellow.

Assignments (5)
RELEASE OF SECURITY INTEREST IN PATENTS AT REEL 040146/FRAME 0145 Recorded Jul 29, 2022
From: JPMORGAN CHASE BANK, N.A.
To: NATUS MEDICAL INCORPORATED
Reel/Frame 061067/0493 →
RELEASE OF SECURITY INTEREST Recorded Jul 22, 2022
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: NATUS MEDICAL INCORPORATED
Reel/Frame 060818/0680 →
SECURITY INTEREST Recorded Jul 21, 2022
From: NATUS MEDICAL INCORPORATED
To: JEFFERIES FINANCE LLC
Reel/Frame 060799/0430 →
SECURITY INTEREST Recorded Sep 26, 2016
From: NATUS MEDICAL INCORPORATED
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 040146/0145 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2004
From: CHUNG, DONG-CHUNE CHRISTOPHER; TOTAH, ABRAHAM; FLAHERTY, BRYAN
To: NATUS MEDICAL INC
Reel/Frame 014454/0008 →