Ultrasonic scalpel
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Solution Overview
Problem
The existing ultrasonic scalpels have fixed ultrasonic generators, electric wires within the scalpel rod, and external electric wires, which results in winding of external wires when adjusting the scalpel blade angle, reducing operator control accuracy and affecting operation success rates.
Innovation Solution
An ultrasonic scalpel design featuring an annular conductive part, an elastic conductive part, and an intermediate shell that allows 360-degree electrical conduction between the ultrasonic generator and the scalpel blade, preventing wire winding by enabling simple rotation of the rear shell, with the elastic conductive part penetrating through the intermediate shell to connect the annular conductive part and the scalpel blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ultrasonic generator and electric wires are fixed to one another, then the electrical connection is stable, but the external electric wires will be wound when the scalpel blade angle is adjusted, reducing control accuracy
Solution Approach 1:
The patent introduces a rotating connection structure between the ultrasonic generator and external electric wires, allowing the electric wires to rotate relative to the generator body when the scalpel blade angle is adjusted. This dynamic connection prevents wire winding while maintaining electrical contact, resolving the contradiction between connection stability and operational flexibility.
Solution Approach 2:
The patent uses a rotating connector as an intermediary element between the fixed ultrasonic generator and the adjustable scalpel blade. This intermediary component enables independent rotation of the blade while maintaining stable electrical connection to the generator, solving the wire winding problem without compromising electrical reliability.
2Ease of operation
If the scalpel handle is directly rotated to adjust the blade angle, then the adjustment is simple, but the external electric wires become entangled, affecting operation success rate
Solution Approach 1:
The patent implements a dynamic rotating connection that allows the scalpel handle and blade to rotate independently relative to the ultrasonic generator. This enables simple blade angle adjustment through rotation while the flexible wire connection prevents entanglement, maintaining both ease of operation and reliability.
Solution Approach 2:
The patent employs flexible wire connections that can accommodate rotational movement of the scalpel blade without becoming entangled. These flexible conductive elements allow the blade to be rotated for angle adjustment while preventing wire tangling, thus maintaining operation success rate.
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 design enhances operator control and improves operation success rates by ensuring uninterrupted electrical conduction during scalpel blade adjustments, preventing wire entanglement and improving usability.
Implementation Method 1
The elastic conductive part is electrically connected to the ultrasonic generator and the annular conductive part respectively
Data Source
AI summary
An ultrasonic scalpel includes a scalpel body, a scalpel rod, and an ultrasonic generator, where an annular conductive part, the ultrasonic generator, and an elastic conductive part are arranged in the scalpel body; the scalpel rod is connected to an output terminal of the ultrasonic generator; and the annular conductive part and the scalpel body are connected to each other. An intermediate shell is arranged to fixedly engage with an outer side of the ultrasonic generator; a mounting hole which fits the elastic conductive part is provided in an outer side of the intermediate shell; and the elastic conductive part is electrically connected to the ultrasonic generator and the annular conductive part respectively.