Chitosan Bandage for Esophageal Hemorrhage via Balloon Compression
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Solution Overview
Problem
Current treatments for gastrointestinal bleeding, such as esophageal ulcers and varices, face challenges with perforation risks and ineffective deployment of clipping methods, lacking a non-invasive, safe, and effective solution for hemorrhage control within the esophagus.
Innovation Solution
A system and method for deploying a chitosan bandage structure within a body lumen using an intraluminal delivery system, which applies moderate circumferential pressure and utilizes a mucoadhesive, antimicrobial, and hemostatic chitosan material to control bleeding and promote healing, without sharp edges or point pressure, and allows for drug delivery and cell therapy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electro-cautery is used to treat esophageal hemorrhage, then hemorrhage control is achieved, but the risk of perforation increases and tissue damage occurs
Solution Approach 1:
The patent replaces the thermal/mechanical injury mechanism of electro-cautery with a purely mechanical compression system. The balloon device applies controlled circumferential pressure to achieve hemostasis without thermal damage or perforation risk, substituting the harmful electro-cautery mechanism with a safer mechanical compression approach.
Solution Approach 2:
The patent changes the pressure application parameter from concentrated point pressure (electro-cautery) to distributed circumferential pressure. The balloon distributes force evenly around the esophageal circumference, preventing the localized tissue damage and perforation risks associated with concentrated energy delivery while maintaining effective hemorrhage control.
2Reliability
If clipping is used to control esophageal hemorrhage, then hemorrhage control can be achieved, but deployment difficulty increases and insertion depth precision is hard to ensure
Solution Approach 1:
The balloon device is self-deploying through simple inflation. Once positioned in the esophagus, the balloon is inflated to automatically expand and apply circumferential pressure, eliminating the complex manual manipulation required for clip deployment and ensuring consistent insertion depth without requiring precise operator skill.
Solution Approach 2:
Instead of actively grasping tissue with clips (outward force), the balloon passively expands inward against the esophageal wall. This inverted approach—using internal expansion rather than external grasping—simplifies deployment and ensures uniform contact pressure around the entire circumference, overcoming the precision and difficulty issues of clip insertion.
3Force
If point pressure is applied to control hemorrhage, then localized compression is achieved, but the risk of tissue damage and perforation increases
Solution Approach 1:
The patent transitions from one-dimensional point pressure to three-dimensional circumferential compression. The balloon expands in all radial directions simultaneously, distributing compressive force around the entire esophageal circumference. This dimensional change transforms concentrated harmful pressure into distributed therapeutic compression, maintaining hemorrhage control while eliminating tissue damage risks.
Solution Approach 2:
The patent changes the pressure distribution parameter from concentrated (point) to distributed (circumferential). By inflating the balloon, the system transforms the force application pattern to spread compression evenly across multiple tissue contact points, reducing peak stress on any single location and preventing perforation while maintaining effective hemostasis.
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 system effectively controls bleeding, promotes healing, and provides an antimicrobial barrier within the esophagus, ensuring safe and effective treatment of gastrointestinal hemorrhages with reduced risk of perforation and improved deployment precision.
Implementation Method 1
The systems and methods can be sized and configured to apply a chitosan bandage structure within a body lumen or hollow body organ, to take advantage of the mucoadhesive, antimicrobial, hemostatic, and potential accelerated wound healing properties of the chitosan material.
Implementation Method 2
The systems and methods can be sized and configured to apply a chitosan bandage structure within a body lumen or hollow body organ, to take advantage of the mucoadhesive, antimicrobial, hemostatic, and potential accelerated wound healing properties of the chitosan material.
Implementation Method 3
The systems and methods can be sized and configured to apply a chitosan bandage structure within a body lumen or hollow body organ, to take advantage of the mucoadhesive, antimicrobial, hemostatic, and potential accelerated wound healing properties of the chitosan material.
Data Source
AI summary
Systems and methods provide intraluminal delivery of a bandage structure within a body lumen or hollow body organ, e.g., for treating an injured gastrointestinal tract or an esophageal hemorrhage in a non-invasive way using endoscopic visualization. The systems and methods can be sized and configured to apply a chitosan bandage structure within a body lumen or hollow body organ, to take advantage of the mucoadhesive, antimicrobial, hemostatic, and potential accelerated wound healing properties of the chitosan material.