Light therapy systems and methods

A technology of phototherapy and light quantity, applied in the field of phototherapy system, can solve the problems of increasing the patient's confusion and hindering the patient's recovery process.

Active Publication Date: 2022-03-29
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This hinders the patient's recovery process and in particular increases the patient's risk of developing delirium

Method used

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  • Light therapy systems and methods
  • Light therapy systems and methods
  • Light therapy systems and methods

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Embodiment Construction

[0068] A light therapy system for delivering a controllable amount of melanopsin light includes a lighting assembly for producing a light output with configurable illuminance and color temperature. Based on the received target amount of melanopsin illumination, the controller of the system constructs a suitable control schedule for controlling the parameter level of the lighting assembly over time such that the total indicated target is delivered within the defined treatment period. The amount of melanopsin light. The relative melanopsin sensitivity of humans to light of different color temperatures is considered when constructing the control schedule. The color temperature of the delivered light is controlled accordingly such that after adjustments are made for the color, the amount of light delivered matches the input target light exposure.

[0069] will now refer to Figure 1 to Figure 7 Preferred embodiments of the present invention will be described in detail.

[0070]...

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Abstract

A light therapy system (12) for delivering a controllable amount of melanopsin light includes a lighting assembly (16) for producing a light output (68) having a controllable illuminance and color temperature. Based on the received target melanopsin illumination, the controller (24) of the system constructs a suitable control schedule (71) for controlling the parameter level of the lighting assembly over time such that during the defined treatment period The indicated amount of target melanopsin illumination is delivered in total in (78). The relative melanopsin sensitivity of humans to light of different color temperatures is considered when constructing the control schedule. The color temperature of the delivered light is controlled accordingly so that after adjustments are made for the color, the amount of light delivered meets the input exposure target.

Description

technical field [0001] The present invention relates to phototherapy systems and methods. Background technique [0002] It is known that many patients treated in clinical units (eg, hospitals, especially Intensive Care Units (ICUs)) exhibit disturbances in the sleep cycle. This hinders the patient's recovery process and in particular increases the patient's risk of developing confusion. Confusion can occur in up to 80% of critically ill patients, leading to prolonged hospital stays and, in some cases, even increased mortality. Therefore, recent guidelines issued by the American and German Intensive Care Societies propose ways to prevent delirium in such patients. In particular, the proposed approach is non-pharmacological, but instead focuses on trying to restore the patient's circadian rhythm naturally through bright light therapy. [0003] For humans, eye exposure to light is the most important factor in synchronizing circadian rhythms with the natural 24-hour day / night...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/06
CPCA61N2005/0627A61N5/0618A61N2005/0652A61N5/06
Inventor T·M·福尔克F·M·D-D·阿克曼斯
Owner KONINKLJIJKE PHILIPS NV
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