Forceps Suction Cut Blade Tissue Tension
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Solution Overview
Problem
Current surgical forceps with mechanical cutting blades face challenges in efficiently cutting tissue, particularly due to the need for stiff shafts and limited flexibility, which can hinder precise tissue manipulation and cutting efficiency.
Innovation Solution
The integration of an electrode-cutting blade with a suction channel and deformable seal in the forceps, where the suction channel draws tissue towards the blade, increasing tension and facilitating more effective cutting, while the electrode-cutting blade uses energy to sever the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mechanical cutting blade is used in forceps, then the blade can effectively cut tissue, but the shaft must be stiff which reduces flexibility and hinders precise tissue manipulation
Solution Approach 1:
The patent replaces the mechanical cutting blade system with an electrode-based cutting system. The electrode delivers electrical energy to cut tissue through electrocautery, eliminating the need for a rigid mechanical blade. This substitution allows the shaft to be flexible while maintaining effective tissue cutting capability, as the electrical energy can be delivered through the flexible shaft to the tissue site.
2Manufacturing precision
If tissue tension is not maintained during cutting, then the cutting process is simpler, but cutting precision and effectiveness are reduced
Solution Approach 1:
The patent combines the suction function with the cutting electrode into an integrated assembly. The suction channel is positioned adjacent to the electrode, allowing simultaneous tissue suction and cutting. This merging of functions maintains tissue tension through suction while delivering cutting energy, improving cutting precision without requiring separate complex tensioning mechanisms.
Solution Approach 2:
The patent introduces suction as an intermediary mechanism to maintain tissue tension during cutting. The suction channel creates negative pressure that holds tissue in place and maintains tension, facilitating more precise and effective electrode cutting. This intermediary function bridges the gap between simple cutting and precision cutting requiring tissue stabilization.
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
This configuration enhances cutting efficiency by maintaining tissue tension and improving the precision and effectiveness of tissue cutting during surgical procedures.
Implementation Method 1
the suction channel draws tissue towards the blade, increasing tension
Implementation Method 2
the electrode-cutting blade uses energy to sever the tissue
Data Source
AI summary
A surgical device configured to cut a tissue of a patient can include a first jaw, a second jaw, a cutting blade, and a suction channel. The second jaw can be movably coupled to the first jaw such that the first jaw and the second jaw are moveable between an open position and a closed position. The cutting blade can extend from the second jaw toward the first jaw. The suction channel can be configured to draw the tissue towards the second jaw and to add tension to the tissue and improve one or more cutting capabilities of the surgical device.