Pressure-Cuff Light Therapy for Consistent Muscle Dosing
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Solution Overview
Problem
Existing light therapy systems face challenges in delivering precise and consistent dosing of light to muscles beneath the skin surface due to varying skin melanin and fat layer thickness, and there is a need for improved integration with intermittent pneumatic compression devices.
Innovation Solution
A light therapy system integrated with a pressure cuff that includes a light emitter positioned within the cuff to press into the fatty layer and muscle, utilizing a controller to adjust light intensity and duration based on fat layer thickness and skin color, and optionally combined with a photometer for precise dosing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If IR light is applied on the skin surface to treat underlying tissues, then therapeutic benefits are achieved through light absorption by mitochondria, but light scattering and absorption by varying fat layers result in inconsistent dosing to the muscle tissue
Solution Approach 1:
The system performs preliminary measurement of fat layer thickness using near-infrared photometry before delivering the therapeutic light dose. This allows the controller to pre-calculate the appropriate light intensity and duration needed to deliver a consistent therapeutic dose to the muscle tissue, regardless of individual variations in fat layer thickness.
Solution Approach 2:
The system uses photodetectors to measure the amount of light reflected from or transmitted through the tissue, providing feedback to the controller. This feedback loop enables real-time adjustment of light delivery parameters to compensate for variations in tissue composition and ensure consistent dosing to the target muscle tissue.
2Reliability
If a pressure cuff is used to press the light emitter into the fatty layer and muscle, then light delivery to muscles is improved, but the device complexity increases due to integration with pneumatic compression system
Solution Approach 1:
The system merges the light therapy function with the pneumatic compression function into a single integrated device. The pressure cuff that delivers mechanical compression also serves as the mounting structure for the light emitter array, allowing simultaneous delivery of both therapies through a unified system rather than requiring separate devices.
Solution Approach 2:
The pressure cuff is designed to perform multiple functions: it delivers mechanical compression to the tissue, provides structural support for positioning the light emitter array, and enables direct contact between the light emitter and the tissue surface. This multi-functionality reduces the need for additional components and simplifies the overall system architecture.
3Measurement precision
If light intensity and duration are adjusted based on fat layer thickness and skin color, then consistent therapeutic dosing is achieved, but the measurement and control system complexity increases
Solution Approach 1:
The system performs preliminary measurement of fat layer thickness using near-infrared photometry before delivering the therapeutic light dose. This allows the controller to pre-calculate the appropriate light intensity and duration needed to deliver a consistent therapeutic dose to the muscle tissue, regardless of individual variations in fat layer thickness.
Solution Approach 2:
The system uses photodetectors to measure the amount of light reflected from or transmitted through the tissue, providing feedback to the controller. This feedback loop enables real-time adjustment of light delivery parameters to compensate for variations in tissue composition and ensure consistent dosing to the target muscle tissue.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances light absorption by muscles, reduces scattering, and provides improved therapeutic effects such as wound healing and muscle performance by optimizing light delivery through controlled pressure and measurement adjustments.
Implementation Method 1
Inside the tissue, photons are either scattered or absorbed
Implementation Method 2
the underlying fat layer scatters the photons in a random pattern. Some photons continue to the underlying muscle fibers where the IR energy is absorbed by chromophores
Implementation Method 3
Near IR photometry is used in some commercial products to non-invasively measure skin fat thickness. The method uses light that is transmitted into the skin by IR emitting diodes. This radiation penetrates the tissue and is reflected, absorbed, and scattered according to the tissue's optical properties
Implementation Method 4
a pressure cuff system comprising a cuff that is positionable on or near a body part of a user and that can receive pressurized air to selectively pressurize and depressurize the cuff
Data Source
AI summary
A light therapy system is made up of a pressure cuff system having a cuff that is positionable on or near a body part of a user and that can receive pressurized air to selectively pressurize and depressurize the cuff and a light emitting system having a supporting structure and a light emitter positioned on the supporting structure, the light emitter being controllably powerable. The supporting structure is positionable on an interior surface of the cuff so that the light emitter can direct light onto the body part. The light therapy system can further include a controller capable of controllably powering the light emitter, wherein controller can adjust the intensity or duration of the light directed onto the body part in response to an input or measurement related to a condition of the body part. A photometer can be provided separately or integrally to measure the condition of the body part. A method of providing light therapy is also provided.