Rectal Balloon With Diffusing Fluid For Hemorrhoid Illumination

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current hemorrhoid treatment methods, such as ligation banding and sclerotherapy, face challenges in locating and treating multiple hemorrhoids due to swelling and limited visibility of deeper veins, especially when conventional white light is used.

Innovation Solution

A device comprising a balloon inflatable with a light-diffusing fluid and a flexible light-emitting component, such as OLED foil or optical fibers, that illuminates the treatment area within the rectum, allowing for adjustable spectral illumination to enhance visibility of hemorrhoidal tissue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If conventional white light is used to illuminate the treatment area, then the device structure is simple, but the visibility of deeper veins is poor

Engineering Contradiction:
Improvevisibility of hemorrhoidal tissueVSAvoidlight source configuration
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent changes the spectral parameters of the light source by using multiple LEDs with different wavelengths (blue, green, yellow, red) instead of conventional white light. This allows optimization of light penetration and visualization properties for hemorrhoidal tissue, improving visibility of deeper veins while maintaining a relatively simple device structure.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite light emission system combining multiple LED types with different spectral characteristics. This composite approach creates a multi-wavelength illumination that enhances tissue visualization capabilities compared to single-wavelength or conventional white light sources.

Inventive Principle:
Principle #40Composite materials

2Productivity

If ligation banding is performed on multiple hemorrhoids, then hemorrhoid treatment is achieved, but the banded hemorrhoids block free space and prevent access to subsequent hemorrhoids

Engineering Contradiction:
Improvetreatment efficiencyVSAvoidaccess to hemorrhoids
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent performs preliminary illumination and visualization of the treatment area before performing ligation banding. By illuminating the rectal mucosa with multi-wavelength light to enhance visibility of hemorrhoids and veins, the physician can accurately locate and access subsequent hemorrhoids even after previous banding procedures, preventing blockage issues.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent incorporates real-time visual feedback through illuminated visualization during the treatment procedure. The multi-wavelength illumination allows continuous monitoring and adjustment of treatment progress, enabling the physician to identify accessible hemorrhoids and modify the treatment sequence accordingly to maintain ease of operation.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If sclerotherapy with liquid drug injection is used, then hemorrhoid treatment is achieved, but deeper veins are difficult to locate

Engineering Contradiction:
Improvelocation accuracy of veinsVSAvoidvisibility of deeper tissue
Core Design Contradiction:
Measurement precisionVSIllumination intensity

Solution Approach 1:

The patent changes the illumination parameters by using multiple specific wavelengths (blue, green, yellow, red LEDs) instead of conventional white light. Different wavelengths penetrate tissue at different depths and are absorbed by hemoglobin at different rates, enabling enhanced visualization of deeper veins and improving location accuracy for sclerotherapy.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies different spectral qualities of light to different depths and tissue regions. By selecting specific wavelengths that penetrate deeper into tissue and are absorbed by hemoglobin, the system enhances the local visualization quality of deeper veins, enabling precise location for treatment.

Inventive Principle:
Principle #3Local quality

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

The device facilitates better visualization of hemorrhoidal tissue by diffusing light through the fluid, enabling more effective treatment of multiple hemorrhoids without the need for waiting for swelling to subside, thereby improving treatment efficiency and accuracy.

Implementation Method 1

a flexible light-emitting device attached to the balloon having a light-emitting side facing radially inward toward the fluid so that, during a medical procedure, light emitted from the light-emitting side is diffused by the fluid and illuminates a treatment area within the body lumen proximal to the balloon

Methodology Applied
Scientific EffectLight diffusion: Scattering

Data Source

PatentUS11937789B2Device and method for hemorrhoid treatment via rectum expansion and specific spectral illumination
Publication Date: 2024.03.26 BOSTON SCIENTIFIC SCIMED INC
  • US11937789B2 patent drawing
  • US11937789B2 patent drawing
  • US11937789B2 patent drawing

AI summary

A device includes a balloon configured for inflation with a light-diffusing fluid and configured, upon inflation, to expand a body lumen within which it is positioned and a flexible light-emitting device attached to the balloon having a light-emitting side facing radially inward toward the fluid so that, during a medical procedure, light emitted from the light-emitting side is diffused by the fluid and illuminates a treatment area within the body lumen proximal to the balloon.