Tissue Retraction System with Anchor Holder
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Solution Overview
Problem
Current methods for tissue retraction, such as injecting solutions to elevate tissue for lesion removal, are time-consuming and may not provide sufficient retraction, especially for flat lesions, leading to difficulties in visualizing a clear cutting plane.
Innovation Solution
A tissue retraction system comprising a first anchor, a second anchor, and an elongate coupling member between them, along with a holder that deploys the anchors into tissue, allowing for controlled tissue retraction by adjusting the force and direction of the anchors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple injections are made to elevate tissue for retraction, then tissue retraction is achieved, but the procedure becomes time-consuming
Solution Approach 1:
The patent extracts the retraction function from multiple injection operations and consolidates it into a single mechanical retraction device. The device includes a retraction element that can be deployed to mechanically elevate and hold tissue without requiring repeated injections, thereby achieving reliable retraction while significantly reducing procedure time.
Solution Approach 2:
The patent introduces a mechanical retraction device as an intermediary between the surgeon's intent and the tissue retraction outcome. This device acts as a mediator that provides controlled, sustained retraction force through mechanical means rather than relying on repeated chemical injections, thus improving both reliability and time efficiency.
2Reliability
If multiple injections are made to achieve tissue retraction, then tissue elevation is obtained, but the number of injections increases procedure complexity
Solution Approach 1:
The patent extracts the retraction function from multiple injection operations and consolidates it into a single mechanical retraction device. The device includes a retraction element that can be deployed to mechanically elevate and hold tissue without requiring repeated injections, thereby achieving reliable retraction while significantly reducing procedure time.
Solution Approach 2:
The retraction device is designed as a multi-functional instrument that combines deployment, retraction, and holding capabilities in a single device. This universal tool replaces multiple specialized injection operations, reducing procedural complexity while maintaining reliable tissue retraction throughout the surgical process.
3Reliability
If conventional injection methods are used for retraction, then tissue elevation is achieved, but sufficient retraction for clear visualization is not obtained
Solution Approach 1:
The patent introduces a mechanical retraction device as an intermediary between the surgeon's intent and the tissue retraction outcome. This device acts as a mediator that provides controlled, sustained retraction force through mechanical means rather than relying on repeated chemical injections, thus improving both reliability and time efficiency.
Solution Approach 2:
The retraction device incorporates dynamic adjustment capabilities that allow the surgeon to modify retraction force and position in real-time based on visual feedback. This dynamic control ensures optimal tissue elevation and maintains clear visualization throughout the procedure, overcoming the static and insufficient retraction provided by conventional injection methods.
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 enables efficient and controlled tissue retraction, providing a clear line of sight for precise cutting and minimizing the risk of unwanted incision errors, such as severing vessels.
Implementation Method 1
The distal portion may have a smaller width than the proximal portion such that the distal portion exerts a force on a proximal end of the first anchor during deployment of the first anchor from the holder. The force may move the first anchor into an open configuration for receiving tissue.
Data Source
AI summary
In one aspect of the present disclosure, a tissue retraction system may include a first anchor, a second anchor, and an elongate coupling member extending between the first anchor and the second anchor. The system also may include a holder for receiving the first anchor, the second anchor, and the elongate coupling element. The holder may include a proximal portion and a distal portion. The distal portion may have a smaller width than the proximal portion such that the distal portion exerts a force on a proximal end of the first anchor during deployment of the first anchor from the holder. The force may move the first anchor into an open configuration for receiving tissue.