Multi-Wavelength Laser Tumor Ablation Through Healthy Tissue
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Solution Overview
Problem
Contemporary cancer treatments are invasive and cause significant side effects due to the need for surgical intervention and post-therapies like chemotherapy and radiation, which severely sicken patients.
Innovation Solution
A non-invasive laser therapy using multiple wavelengths of radiant energy, tailored to individual patient factors such as melanin, fat, and arterial location, to selectively target and denature tumors without damaging healthy tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surgical removal followed by chemo or radiation therapy is used to treat cancer, then the tumor can be removed, but the patient suffers severe side effects and tissue damage
Solution Approach 1:
The patent replaces mechanical surgical intervention with optical energy (laser radiation) to achieve tumor destruction. Instead of physically cutting and removing tissue, the system uses specific wavelength laser beams to selectively denature tumor cells through photothermal effects, eliminating the need for invasive surgery and its associated complications
Solution Approach 2:
The patent changes the physical parameters of the treatment by using specific wavelength ranges (650-1350 nm) that optimize penetration through healthy tissue while maximizing absorption by tumor tissue. This parameter selection allows differential heating where tumors reach denaturation temperatures while healthy tissues remain unaffected
2Ease of operation
If laser energy is used to heat and denature tumor cells, then non-invasive treatment is achieved, but selective targeting without damaging healthy tissue becomes challenging
Solution Approach 1:
The patent applies local quality by exploiting the inherent difference in optical absorption properties between healthy and tumor tissues. Tumor tissue has higher absorption coefficients for the selected wavelength ranges, allowing the same laser energy to produce localized heating effects specifically within the tumor while healthy tissues with lower absorption remain cool and undamaged
Solution Approach 2:
The system dynamically adjusts treatment parameters including wavelength selection, pulse duration, and energy density based on real-time monitoring and patient-specific characteristics such as melanin content and tissue depth, optimizing the balance between penetration and selective absorption for each treatment session
3Adaptability or versatility
If multiple wavelengths are used to account for melanin and water absorption variations, then treatment effectiveness across different patient types is improved, but system complexity increases
Solution Approach 1:
The patent segments the electromagnetic spectrum into distinct wavelength bands (650-800 nm, 800-950 nm, 950-1350 nm) that target different absorption characteristics of tissue components. Each wavelength range is optimized for specific patient types based on their melanin and water content, allowing the system to address diverse patient populations through selective wavelength application
Solution Approach 2:
The system achieves universality by incorporating multiple laser sources or wavelength-capable lasers that can be selectively activated based on patient characteristics. This multi-functional capability allows a single platform to treat diverse patient types (different skin tones, tissue depths, and tumor locations) by selecting the appropriate wavelength configuration for each case
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
Effectively treats cancerous tumors by denaturing them without invasive surgery, reducing side effects and allowing for customizable treatment protocols that minimize healthy tissue damage.
Implementation Method 1
tumors in general are dark; with most tumors being black in color. Black tumors are very efficient at absorbing radiant energy
Implementation Method 2
utilize specific wavelengths of light that have minimal absorption in soft healthy tissue
Implementation Method 3
heat the cancer cell sufficiently to denature it without damaging healthy tissues
Data Source
AI summary
A cancer treatment with improved effectiveness may feature emission of radiant energy from a laser source based upon measured parameters, particularly melanin content, in a patient's surrounding tissues. Multiple wavelengths of radiant energy, pulse durations, and intensities may be utilized in the radiant energy emission based upon the patient's tissue parameters. One embodiment of a laser source features multiple laser modules (201) which may be independently operated and adjusted for intensity and active duration.