Magnetized Catheter Repels Dissection Tool
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Solution Overview
Problem
Surgeons face challenges in performing blind dissections around the urethra during artificial urinary sphincter implantation, as existing methods lack assurance in avoiding accidental cutting into the urethra, especially in the posterior region which is not visible.
Innovation Solution
A surgical system comprising a magnetized tissue dissection tool and catheter, both with the same polarity, where the catheter inserted into the urethra repels the dissection head, ensuring it is pushed away from the urethra, thereby increasing safety during blind tissue dissection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional dissection tools are used for blind dissection around the urethra, then the surgeon can perform tissue dissection, but there is a high risk of accidentally cutting into the urethra especially in the posterior region
Solution Approach 1:
A magnetized catheter is introduced as an intermediary object into the urethra to serve as a magnetic barrier. The catheter contains a magnet that creates a magnetic field repelling the magnetized dissection tool, thereby mediating protection between the tool and the urethra during blind dissection procedures
2Manufacturing precision
If the surgeon attempts to dissect tissue in the posterior urethral region, then more complete dissection can be achieved, but the risk of accidental urethral injury increases due to lack of visibility
Solution Approach 1:
The magnetized catheter is placed in advance into the urethra to create a preemptive protective barrier. The magnetic repulsion force is established before dissection begins, actively pushing the magnetized dissection tool away from the urethral wall and preventing accidental injury during posterior region dissection
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 enhances the surgeon's confidence and safety by ensuring the dissection head is repelled from the urethra, reducing the risk of accidental cutting and facilitating more precise tissue dissection around the entire circumference, including the posterior area.
Implementation Method 1
the first polarity of the catheter is configured to repel the first polarity of the tissue dissection head of the tool away from the catheter and away from in the urethra
Data Source
AI summary
A method of dissecting tissue includes inserting a magnetized catheter into a urethra; magnetically pushing a tool away from the urethra with the magnetized catheter; and dissecting tissue posterior of the urethra with the tool.