Independently Inflatable Balloon Applicator for Targeted Radiation

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Solution Overview

Problem

Current radiotherapy treatments for internal tissue disorders often expose collateral healthy tissue to unnecessary radiation, leading to potential side effects and reduced treatment efficacy.

Innovation Solution

An apparatus with independently inflatable balloons positions a radiation source within the applicator to maximize radiation delivery to the target tissue while minimizing exposure to surrounding healthy tissue, using a distal balloon, a proximal balloon, and intermediate balloons that can be inflated individually to tailor the treatment area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional radiotherapy is applied to treat internal tissue disorders, then the radiation dose can be delivered to the target tissue, but collateral healthy tissue is exposed to unnecessary radiation causing side effects

Engineering Contradiction:
Improvetreatment efficacyVSAvoidradiation exposure to healthy tissue
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The applicator is divided into multiple independently inflatable balloons (proximal, intermediate, and distal balloons) that can be inflated separately. This segmentation allows the radiation source to be positioned in specific locations along the applicator, enabling selective delivery of radiation to different segments of the target tissue while avoiding exposure of surrounding healthy tissue.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each balloon segment can be inflated to create a localized treatment zone with specific radiation delivery characteristics. The independent inflation capability allows customization of the treatment geometry and radiation dose distribution for different anatomical locations and tumor types, optimizing treatment efficacy while minimizing collateral damage.

Inventive Principle:
Principle #3Local quality

2Device complexity

If a single radiation source is used to treat internal tissue disorders, then the treatment can be simplified, but the radiation dose distribution cannot be optimized for different tissue areas

Engineering Contradiction:
Improveapplicator structureVSAvoidradiation dose distribution
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The applicator incorporates dynamically adjustable components through independent balloon inflation. By selectively inflating different balloon segments, the radiation source position and the treatment zone geometry can be dynamically adjusted to match the specific anatomical configuration and tumor location, providing adaptability without requiring multiple fixed applicator designs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The multi-balloon applicator design serves multiple functions: it provides structural support, defines the treatment zone, positions the radiation source, and controls radiation dose distribution. This universal design can accommodate various treatment scenarios and anatomical locations, replacing the need for multiple specialized applicators while maintaining treatment optimization capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 allows for a maximal radiation dose to be applied to internal tissue disorders while minimizing exposure to adjacent healthy tissue, thereby reducing side effects and improving treatment conformity compared to traditional methods.

Implementation Method 1

A source lumen positioned within at least the intermediate balloon receives a radiation source to treat target tissue adjacent the intermediate balloon

Methodology Applied
Scientific EffectRadiation therapy: Radiation

Data Source

PatentUS11944844B2Internal body cavity therapeutic applicators and methods for using them
Publication Date: 2024.04.02 LAMOUREUX GARY
  • US11944844B2 patent drawing
  • US11944844B2 patent drawing
  • US11944844B2 patent drawing

AI summary

An apparatus for providing treatment to at least one tissue includes a distal balloon, a proximal balloon, and an intermediate balloon positioned between the distal balloon and the proximal balloon and inflatable independently from the distal and proximal balloons. A source lumen is positioned within at least the intermediate balloon receives a radiation source to treat target tissue adjacent the intermediate balloon.