Orthopaedic Power Handpiece External Power Extraction
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Solution Overview
Problem
Conventional orthopaedic drilling and sawing devices using accumulators are prone to power failures, generate excessive heat, and are heavy, making them inefficient and difficult to operate.
Innovation Solution
A power handpiece connected to an external power source with a motor and switch assembly that includes a hollow rotor shaft, transmission claw, and a button guide rod mechanism, allowing for controlled rotation and reciprocation, reducing heat and weight while ensuring a stable power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If an accumulator is used as the power source in the orthopaedic drilling and sawing device, then the device can operate portably, but the endurance time is limited and power failure or low power occurs during operation
Solution Approach 1:
The patent removes the accumulator from the handpiece structure and connects the motor directly to an external power source. This extraction of the power source from the portable device eliminates the limited endurance time and power failure issues while maintaining operational portability through the external power connection.
2Temperature
If an accumulator is used as the power source, then the device can be portable, but the device generates high quantity of heat which may destroy circuits
Solution Approach 1:
By removing the accumulator from the system and using an external power source, the patent eliminates the heat generation problem within the handpiece. The external power source handles the thermal load outside the device, preventing circuit damage while maintaining device functionality.
3Ease of operation
If an accumulator is used as the power source, then the device can operate, but the device has greater weight making it difficult to operate
Solution Approach 1:
The patent extracts the accumulator from the handpiece structure, significantly reducing the device weight. This makes the device easier to operate and maneuver during surgical procedures while the external power source provides continuous power supply without the weight penalty.
4Weight of moving object
If the accumulator structure is used, then the device can function, but the overall weight of the device increases
Solution Approach 1:
By removing the accumulator, the patent reduces overall device weight, improving ease of handling and operational efficiency. The external power source connection maintains continuous operation capability without the weight burden, enhancing productivity during surgical procedures.
Data Source
AI summary
The power handpiece for orthopedic drilling and sawing according to the present application at least includes a handle housing, a clamping assembly for clamping a cutting tool assembly, a power motor for outputting power and driving the cutting tool assembly to perform drilling and sawing operations, and a switch assembly for controlling power output of the power motor, wherein the power motor is connected to an external power source. The power machine utilizes an external power source which can be a large-scale accumulator or city electricity, thereby avoiding the situation of power failure or low power which is prone to occur in the operation, and ensuring the smooth performance of the operation, reduce the quantity of heat of the handle, reduce the overall weight of the device, make the device portable and easy to operate, and improve the efficiency of the operation.