Biased-Leg Tissue Traction for Endoscopic Visibility and Access
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Solution Overview
Problem
Existing minimally-invasive surgical procedures face challenges in managing cut tissue, which can obstruct visibility and hinder instrument movement due to limited space and the need for additional tools, increasing complexity and cost.
Innovation Solution
A tissue traction system with biased legs and a delivery shaft, allowing the tissue traction device to be shifted between delivery and deployment configurations, applies traction to draw tissue away from the treatment site using a biasing section and tissue-engaging tips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional tools are used to lift tissue during endoscopic procedures, then tissue management is improved, but device complexity and cost increase
Solution Approach 1:
The tissue traction device merges the functions of tissue lifting and positioning into a single integrated device that can be delivered through the existing endoscope working channel. The device combines a traction element with engagement features, eliminating the need for separate tissue lifting tools and reducing overall device complexity while improving tissue management capability.
Solution Approach 2:
The tissue traction device is designed to perform multiple functions within a single device: it provides tissue traction, positions tissue for better visibility, and can be delivered through the existing endoscope channel. This multi-functional design reduces the need for multiple specialized tools, thereby reducing device complexity and cost while enhancing operational ease.
2Ease of operation
If separate working channels are added to the endoscope for tissue lifting tools, then tissue lifting capability is improved, but endoscope size and complexity increase
Solution Approach 1:
The tissue traction device is designed to perform multiple functions within a single device: it provides tissue traction, positions tissue for better visibility, and can be delivered through the existing endoscope working channel. This multi-functional design reduces the need for multiple specialized tools, thereby reducing device complexity and cost while enhancing operational ease.
Solution Approach 2:
The tissue traction device is nested within the existing endoscope working channel, utilizing the available space without requiring additional channels. The device fits within the existing structural constraints of the endoscope, allowing tissue lifting functionality to be added without increasing endoscope size or complexity.
3Productivity
If more specialized tools are used for tissue management, then procedural effectiveness is improved, but cost increases
Solution Approach 1:
The tissue traction device merges the functions of tissue lifting and positioning into a single integrated device that can be delivered through the existing endoscope working channel. The device combines a traction element with engagement features, eliminating the need for separate tissue lifting tools and reducing overall device complexity while improving tissue management capability.
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 lifts cut tissue away from the treatment site, enhancing visibility and access for medical tools, reducing complexity and cost by integrating with existing endoscopic tools without requiring additional channels.
Implementation Method 1
a pair of legs biased with respect to each other by a biasing section... the biasing section of the tissue traction device exerts traction on tissue through the tissue traction device legs
Data Source
AI summary
A tissue traction device with a pair of legs biased with respect to each other by a biasing section. The legs may be biased apart and engaged with tissue sites to be separated from each other upon the legs being biased apart from each other. Alternatively, the legs may be biased together, and one leg engaged with tissue cut with respect to a treatment site and the other leg engaged with anchoring tissue spaced apart from the treatment site. The legs are biased together to draw the tissue cut with respect to the treatment site away from the treatment site and towards the anchoring tissue. The tissue traction device may be included in a tissue traction system having a delivery shaft configured to deliver the tissue traction device to a treatment site.