Rectangular Optical Fiber Laser Layout for Even Skin Coverage

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Solution Overview

Problem

Existing laser treatments for dermatologic and aesthetic medicine face challenges in achieving homogeneous treatment of skin areas due to circular-shaped spots that lead to superimpositions, energy overexposures, and untreated areas, with risks of burns and inefficiencies.

Innovation Solution

A laser treatment device using a rectangular-shaped optical fiber and handpiece with sensors to project rectangular laser light images, ensuring even energy distribution and alignment, avoiding superimpositions and untreated areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If circular-shaped laser spots are used for treatment, then the laser energy can be delivered effectively, but superimpositions occur leading to energy overexposures and burns

Engineering Contradiction:

Improvelaser energy deliveryVSAvoidenergy overexposure and burns

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent changes the traditional circular laser spot shape to a rectangular shape. This asymmetric geometric change allows the laser beams to be arranged in a grid pattern that eliminates superimpositions while maintaining effective energy delivery to the treatment area. The rectangular shape enables precise alignment and spacing of multiple laser sources.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The treatment area is divided into multiple discrete rectangular zones, each treated by a separate laser source. This segmentation allows independent control of each laser beam's position and energy, preventing overlapping exposure while ensuring complete coverage of the treatment area through systematic arrangement.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If circular-shaped laser spots are used for treatment, then the laser system is simple to operate, but untreated areas are created due to superimpositions

Engineering Contradiction:

Improvelaser system operationVSAvoidtreatment coverage efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The rectangular spot geometry provides inherent alignment features that simplify the positioning and spacing of multiple laser sources. The straight edges and right angles of rectangular spots make it easier to arrange them in a systematic grid pattern, ensuring complete coverage without gaps or overlaps, thereby improving treatment efficiency.

Inventive Principle:

Principle #4Asymmetry

3Area of stationary object

If multiple laser sources are used to cover larger areas, then treatment coverage is improved, but superimpositions cause energy overexposure

Engineering Contradiction:

Improvetreatment coverage areaVSAvoidenergy overexposure from superimpositions

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple rectangular laser beams are combined to treat a large area simultaneously. The rectangular shape allows these beams to be arranged edge-to-edge in a grid pattern, merging their coverage areas to achieve complete illumination of the treatment zone without any overlapping regions that would cause energy overexposure.

Inventive Principle:

Principle #5Merging (Combining)

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

Enables complete and even coverage of treatment areas without superimpositions, reducing the risk of burns and improving treatment efficiency by ensuring uniform energy distribution across the skin.

Implementation Method 1

an optical fiber having a proximal end to receive laser light from the plurality of treatment laser light sources and a distal end to transmit overlapping laser light to the area of skin tissue to be treated

Methodology Applied

Scientific EffectOptical fiber transmission: Optical Fibre

Implementation Method 2

The concept on which it is based is selective photothermolysis. By selecting a laser with the proper wavelength and energy per surface unit (fluency), a particular target substance present in the light-absorbing tissue (chromophore), such as, for example, melanin or hemoglobin, absorbs the laser beam energy so as to be heated such that the function of the tissue containing the chromophore is destroyed.

Methodology Applied

Scientific EffectSelective photothermolysis: Absorption (EM radiation)

Implementation Method 3

The one or more sensors sensing the position of the handpiece with respect to contact with the skin tissue are to be treated

Methodology Applied

Scientific EffectPosition sensing:

Data Source

PatentUS20260000451A1Laser device for dermocosmetic treatments and tracing kit

Publication Date: 2026.01.01 BIOS SRL

AI summary

A method of dermocosmetic treatment for skin tissue includes a plurality of treatment laser light sources which are in communication with a rectangular-shaped optical fiber; the optical fiber includes a proximal end to receive laser light from the plurality of treatment laser light sources and a distal end to transmit overlapping laser light to the area of skin tissue to be treated; the plurality of treatment of laser light sources are activated to impinge one or more rectangular-shaped laser light images within one or more rectangular-shaped areas.