Tissue Manipulation Tool Fluid Jet Tensile Force
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Solution Overview
Problem
Current medical devices used in procedures like Endoscopic Mucosal Resection (EMR) and Endoscopic Sub-mucosal Dissection (ESD) face challenges in accurately removing tissue without damaging healthy tissue, leading to increased procedure time and risk of infection due to the deployment of cutting tools within the body.
Innovation Solution
A medical device with a distal end featuring a first and second jaw, where the second jaw has an orifice to direct a fluid jet towards the first jaw, facilitating the precise manipulation and resection of tissue by applying a tensile force, while being integral with a cap that can attach to an endoscope and include a fluid delivery system for controlled fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cutting tools are deployed within the body to perform tissue resection, then tissue removal capability is improved, but the risk of damaging healthy tissue increases
Solution Approach 1:
The device segments the tissue manipulation function into two distinct components: a fluid jet system for tissue advancement and a separate cutting tool for resection. This segmentation allows the fluid jet to prepare and position the tissue without direct contact, reducing the risk of unintended damage while maintaining effective tissue removal capability
Solution Approach 2:
A fluid jet is introduced as an intermediary medium between the device and the target tissue. The fluid jet advances and stabilizes the tissue without direct mechanical contact, creating a controlled interface that reduces the risk of damaging healthy tissue while enabling precise positioning for subsequent cutting
2Productivity
If cutting tools are deployed within the body to perform tissue resection, then tissue removal capability is improved, but procedure time increases
Solution Approach 1:
The fluid jet performs preliminary actions by advancing and stabilizing the target tissue before the cutting tool is deployed. This pre-positioning of the tissue ensures that when the cutting tool is activated, the tissue is already in the optimal position for resection, eliminating the need for time-consuming manual manipulation and positioning during the cutting phase
3Productivity
If cutting tools are deployed within the body to perform tissue resection, then tissue removal capability is improved, but infection risk increases
Solution Approach 1:
The fluid jet acts as a sterile intermediary that can be delivered through a sealed fluid delivery system, reducing the need to open the device to the body cavity. This minimizes exposure of internal device components to the body environment, thereby reducing infection risk while maintaining tissue resection capability
Solution Approach 2:
The device extracts the tissue manipulation function from the mechanical cutting tool and transfers it to a fluid-based system. By using the fluid jet to advance and position tissue externally, the cutting tool can remain sealed within the device until the moment of resection, reducing the time the device is open to the body and lowering infection risk
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 effectively moves and stabilizes tissue for precise resection, reducing the risk of damaging healthy tissue and shortening procedure time, thereby minimizing costs and infection risks.
Implementation Method 1
an orifice defined by the second surface and configured to direct a fluid towards the first surface so as to move the portion of tissue towards the first surface
Implementation Method 2
the jet may apply a tensile force to the portion of tissue by moving the proximal end of said portion in the direction of travel
Data Source
AI summary
A medical device for manipulating a portion of tissue. The device may have one or more opposing jaws. One of the jaws may be configured to be placed between the portion of tissue and an underlying portion of tissue, and have an orifice configured to direct a fluid towards a surface of the other jaw so as to move the portion of tissue towards the said other jaw. A fluid delivery channel may extend between the orifice and a fluid source. A switch may be operable to flow the fluid from the source, through the channel, and out of the orifice. Related methods are also disclosed.