Electrosurgical Forceps Jaw Geometry for Precise Tissue Dissection
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Solution Overview
Problem
Existing electrosurgical forceps face challenges in balancing the benefits of features for tissue treatment, division, and blunt tissue dissection, while also addressing the limitations and complications arising from these features.
Innovation Solution
The design of electrosurgical forceps with first and second shaft members and jaw members, featuring a specific ratio of width to length at the distal tip portion, a curved distal section, and a pivot mechanism that allows for precise movement between open and closed positions, facilitating effective tissue treatment and division.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the distal tip portion of jaw members is designed with a specific width-to-length ratio (1.45-1.70) and curved distal perimeter, then tissue treatment precision and blunt tissue dissection effectiveness are improved, but the device complexity increases due to the specialized geometric configuration
Solution Approach 1:
The patent applies parameter changes by specifying a particular width-to-length ratio range (1.45-1.70) for the distal tip portion and defining a curved distal perimeter geometry. These specific parameter values optimize the balance between tissue treatment precision and device complexity, allowing the jaw members to effectively grasp and dissect tissue while maintaining manufacturability.
Solution Approach 2:
The curved distal perimeter of the jaw members implements the spheroidality principle by replacing sharp angles with smooth curves. This curvature improves tissue dissection effectiveness and reduces stress concentration points, while the standardized geometric form facilitates manufacturing processes.
2Productivity
If the jaw members are designed with enhanced features for tissue division and dissection, then surgical efficacy is improved, but the ease of operation may be compromised due to the specialized configuration
Solution Approach 1:
The optimized width-to-length ratio (1.45-1.70) of the distal tip portion enhances surgical efficacy by providing appropriate tissue grasping surface area and mechanical advantage, while the curved geometry facilitates natural hand positioning and operation during surgical procedures.
3Adaptability or versatility
If the electrosurgical forceps incorporates multiple functional features for tissue treatment and division, then versatility is improved, but the device complexity increases
Solution Approach 1:
The jaw members are designed with a universal geometric configuration (specific width-to-length ratio and curved distal perimeter) that enables multiple functions including tissue grasping, blunt dissection, and electrosurgical treatment. This standardized yet optimized geometry allows a single device design to perform diverse surgical tasks without requiring multiple specialized components.
Data Source
AI summary
An electrosurgical forceps includes first and second shaft members and first and second jaw members extending distally from the respective first and second shaft members. A pivot couples the first and second shaft members with one another such that the first and second shaft members are movable relative to one another between a spaced-apart position and an approximated position to move the first and second jaw members relative to one another between an open position and a closed position. The jaw members are configured to facilitate tissue treatment, tissue division, and blunt tissue dissection.