Malleable Electrosurgical Handle for Confined Surgical Access
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Solution Overview
Problem
In minimally invasive surgery, there is a challenge in maneuvering electrosurgical instruments through narrow and often obscured spaces, requiring extreme skill and precision due to the limited dexterity and visibility during procedures like spinal surgery.
Innovation Solution
An electrosurgical handpiece with a squeezable handle featuring a back grip and finger grip connected by a lower malleable region with increased elasticity, allowing for easier actuation and control of the instrument by transitioning from a more rigid to less rigid state upon squeezing, facilitating precise placement and movement within confined surgical fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the electrosurgical instrument is made rigid for structural stability, then structural integrity is improved, but maneuverability in narrow spaces deteriorates
Solution Approach 1:
The handle is divided into multiple segments with different rigidity characteristics: a rigid proximal portion for structural stability and a malleable distal portion for maneuverability. This segmentation allows each part to perform its optimal function - the rigid portion maintains structural integrity while the malleable portion enables easy manipulation in confined spaces.
Solution Approach 2:
Different regions of the handle have different mechanical properties. The proximal handle region is made rigid to provide structural stability, while the distal handle region is made malleable to provide ease of manipulation. This local differentiation of material properties resolves the contradiction between overall structural integrity and local maneuverability.
2Ease of operation
If the handle is made completely malleable for ease of manipulation, then ease of operation is improved, but structural stability deteriorates
Solution Approach 1:
The handle is segmented into a malleable distal portion for ease of manipulation and a rigid proximal portion for structural stability. This segmentation ensures that the malleable region provides the needed flexibility for manipulation while the rigid region maintains overall structural integrity.
Solution Approach 2:
The handle exhibits local quality variation where the distal region has high malleability for ease of manipulation while the proximal region has high rigidity for structural stability. This spatial differentiation of mechanical properties allows the handle to simultaneously provide both ease of operation and structural stability.
3Measurement precision
If the surgeon applies extreme skill and precision for accurate electrode placement, then placement accuracy is improved, but surgical complexity increases
Solution Approach 1:
The malleable handle is designed to be self-adjusting and intuitive to manipulate, allowing the surgeon to achieve accurate electrode placement through natural hand movements rather than requiring extreme skill. The handle's malleability enables it to conform to the surgeon's grip and movements, reducing the complexity of the surgical procedure while maintaining placement accuracy.
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
Enhances the surgeon's ability to accurately maneuver electrosurgical instruments in tight spaces by providing a comfortable and intuitive grip mechanism, reducing the complexity of navigating through narrow passages and improving the overall precision during surgical procedures.
Implementation Method 1
The backgrip and the finger grip is connected to the back grip by a lower malleable region that has an elasticity greater than the remainder of the squeezable handle
Data Source
AI summary
An electrosurgical handpiece is provided that includes a squeezable handle. The squeezable handle has a back grip and a finger grip that can be squeezed to actuate electrosurgical handpiece. The back grip and the finger grip are connected by a lower malleable region that has an elasticity greater than the remainder of the squeezable handle.