Expandable Dilation Device for Precise Tissue Coring
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Solution Overview
Problem
Current methods for removing tissue, particularly in sites like the lungs, liver, pancreas, or gastrointestinal tract, lack precision and efficiency in creating a defined tissue core for analysis and treatment, with challenges in managing post-coring bleeding and ensuring repeatable procedures.
Innovation Solution
A system and method for coring tissue using a specialized expanding dilation device, such as a balloon, to create a stable tissue cavity, combined with imaging modalities like CT, ultrasound, and endoscopy for precise lesion localization and tissue resection, followed by sealing the cavity using materials like autologous blood or biologics to manage bleeding and ensure pneumostasis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional tissue removal methods are used, then tissue can be removed from the body, but the procedure lacks precision and cannot create a defined tissue core with repeatable shape and dimensions
Solution Approach 1:
The tissue resection device is divided into multiple functional components: a coring element for cutting tissue, a dilation element for creating access, and a retrieval mechanism. This segmentation allows each component to be optimized for its specific function, achieving precise tissue core removal while managing overall device complexity through modular design
Solution Approach 2:
The device incorporates expandable and retractable elements that can dynamically adjust their configuration. The coring apparatus can be collapsed for insertion and then expanded at the target site to create the defined tissue core, providing precision only when needed and reducing complexity during navigation and deployment
2Measurement precision
If tissue coring is performed to remove precise tissue samples, then diagnostic accuracy is improved, but post-coring bleeding becomes a significant management challenge
Solution Approach 1:
The device performs preliminary dilation of the tissue tract before coring, creating a controlled access pathway. This preliminary action prepares the tissue for precise coring while establishing a channel that can be used for subsequent hemostatic intervention, allowing bleeding management to be addressed proactively rather than reactively
Solution Approach 2:
The patent introduces hemostatic agents as intermediaries between the coring action and the bleeding control. These agents can be delivered through the device into the tissue cavity and along the tract to promote clotting and seal vessels, mediating the harmful bleeding effect without compromising the diagnostic value of the tissue core
3Object-affected harmful factors
If minimally invasive tissue removal is performed, then patient trauma is reduced, but effective sealing of the tissue cavity becomes more difficult
Solution Approach 1:
The tissue resection device is designed to perform multiple functions through a single access point: it dilates the tract, cores the tissue, retrieves the sample, and delivers hemostatic agents. This multi-functionality allows minimally invasive access while addressing the sealing challenge through integrated capabilities rather than requiring separate procedures
Solution Approach 2:
The device enables self-service hemostasis by delivering hemostatic agents directly into the tissue cavity and along the tract through the same access used for coring. The system uses its own pathway to seal itself, eliminating the need for separate surgical intervention and maintaining the minimally invasive benefit while solving the sealing difficulty
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 precise and repeatable removal of tissue cores with improved bleeding control, facilitating accurate diagnosis and minimally invasive procedures, while allowing for subsequent treatments like chemotherapy or energy-based tumor extirpation.
Implementation Method 1
A specialized expanding dilation device, such as a balloon, to create a stable tissue cavity
Implementation Method 2
sealing the cavity using materials like autologous blood or biologics to manage bleeding and ensure pneumostasis
Data Source
AI summary
A dilation assembly comprises an expandable and contractible main body having a corrugated outer surface, a guide cannula configured to be disposed through the main body to guide a movement of the main body, and an anchor configured to fix the main body in a target position.