Laser Therapy Device With Fiber-Needle Delivery
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Solution Overview
Problem
Current laser and LED therapy devices face challenges in effectively targeting biological tissue at depth without causing surface damage or thermal issues due to high power densities and limited penetration capabilities, which restricts the depth of biostimulation effects.
Innovation Solution
A device utilizing a sterilized optical fibre inserted into a needle, featuring multiple laser sources with wavelengths between 400nm to 1070nm, allowing controlled energy transfer and precise penetration with the aid of imaging tools like ultrasound or NMR scanners, and software-controlled energy delivery to minimize tissue damage and optimize biostimulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If high power density radiation beams are applied to surfaces to increase depth of biostimulation, then the depth of action is improved, but surface damage and thermal effects occur
Solution Approach 1:
The patent introduces an intermediary substance (distilled water or saline solution) injected into the tissue before laser application. This intermediary absorbs excess laser energy, preventing direct thermal damage to surface tissues while allowing deep penetration of biostimulating radiation. The intermediary acts as a protective mediator between the high-power laser source and the biological tissue.
Solution Approach 2:
The patent changes the physical state and distribution parameters of energy delivery by converting surface application to deep tissue injection. By injecting the optical fiber or needle into the tissue and delivering laser energy at depth, the parameters of energy distribution are fundamentally altered, achieving deep biostimulation without surface thermal damage.
2Length of moving object
If power of the source is increased to achieve deeper penetration, then depth of action is improved, but local thermal effects and temperature increase occur
Solution Approach 1:
The injected intermediary substance (water or saline) serves as a thermal sink and energy distributor. It absorbs the high-power laser energy and dissipates it through its high specific heat capacity, preventing localized temperature spikes in the tissue while maintaining effective biostimulation at depth.
Solution Approach 2:
The patent employs pulsed or intermittent laser delivery rather than continuous high-power application. This periodic action allows thermal dissipation between pulses, preventing cumulative thermal damage while maintaining effective average power for deep tissue penetration and biostimulation.
3Duration of action of moving object
If exposure time is extended to increase energy delivery, then biostimulation effect is improved, but thermal damage occurs
Solution Approach 1:
The patent fundamentally changes the spatial parameter of energy delivery from surface to deep tissue injection. By delivering energy at depth where blood flow and tissue perfusion can dissipate heat more effectively, extended exposure times can be used without causing surface thermal damage.
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
This approach significantly reduces energy transfer to the tissue by up to 500 times, minimizing the risk of surface damage and thermal effects, while ensuring effective biostimulation and therapeutic outcomes through precise targeting and controlled energy distribution.
Implementation Method 1
an optical fibre for transfer of said optical radiation
Implementation Method 2
at least one laser and/or led source that emits optical radiation; said at least one laser source comprises three laser sources having wavelengths from 400nm to 1070nm
Implementation Method 3
at least one laser and/or led source that emits optical radiation
Implementation Method 4
The medium chosen for the optical fibre is a sterilised needle of variable size that guarantees: 1) mechanical protection against undesirable breakage of the fibres
Data Source
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Figure 3~4
AI summary
A device for laser and/or led therapy comprising : at least one laser and/or led source that emits optical radiation; an optical fibre for transfer of said optical radiation; said optical fibre is inserted into a needle, characterised in that said at least one laser and/or led source comprises three laser sources having wavelengths from 400nm to 1070nm, where at least one laser source is a therapeutic light source.