Ultrasonic Probe Power Control for Tissue Biting
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Solution Overview
Problem
Ultrasonic treatment systems face challenges in preventing the ultrasonic probe from biting into hard tissues during treatments, as existing systems fail to effectively reduce the load and impedance, leading to inadequate vibration amplitude adjustments.
Innovation Solution
An ultrasonic treatment system with an energy source unit that dynamically adjusts power output based on detected load impedance, switching between a first and second output mode to maintain optimal vibration amplitude and prevent probe biting into tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric current supplied to the ultrasonic transducer is reduced in response to increased ultrasonic impedance, then the amplitude of ultrasonic vibration decreases, but the treatment portion continues to bite into hard tissue due to insufficient vibration amplitude
Solution Approach 1:
The patent applies dynamics by making the electric current supply dynamic rather than static. The control section continuously adjusts the electric current based on real-time ultrasonic impedance feedback, switching between first and second electric current supply states. This dynamic adjustment allows the system to respond appropriately to changing load conditions, increasing current when impedance is high to prevent biting, while maintaining normal operation when impedance is acceptable.
Solution Approach 2:
The patent implements feedback through the control section that monitors ultrasonic impedance and adjusts electric current supply accordingly. The feedback loop detects changes in ultrasonic impedance caused by treatment portion biting into hard tissue and automatically adjusts the electric current to increase vibration amplitude when needed, thereby preventing the biting phenomenon while maintaining efficient treatment operation.
2Reliability
If the vibration amplitude of the treatment portion is increased to prevent biting into hard tissue, then the load on the ultrasonic probe increases, but this may cause damage to the ultrasonic probe or surrounding tissues
Solution Approach 1:
The patent applies parameter changes by adjusting the electric current supply parameter based on detected ultrasonic impedance. The control section changes the electric current between two distinct states (first and second electric current supply states) depending on the impedance level. This controlled parameter adjustment increases vibration amplitude only when necessary to prevent biting, while avoiding excessive current that could cause damage to the probe or surrounding tissues.
Solution Approach 2:
The feedback mechanism allows the system to monitor the actual load conditions and adjust electric current supply accordingly. The control section receives feedback on ultrasonic impedance and modifies the electric current to achieve the minimum necessary vibration amplitude to prevent biting, thereby avoiding excessive vibration that could cause harm to the probe or surrounding tissues.
3Productivity
If the electric power output mode is switched to second mode with higher power to increase vibration amplitude, then the treatment effectiveness improves, but the energy consumption increases
Solution Approach 1:
The patent applies dynamics by implementing a dynamic electric power output system that switches between first and second output modes based on real-time ultrasonic impedance detection. The control section continuously monitors impedance and adjusts the power output accordingly, using higher power (second mode) only when necessary to prevent biting into hard tissue, while maintaining lower power (first mode) during normal treatment operations, thereby optimizing energy consumption.
Solution Approach 2:
The patent implements parameter changes in the electric power output by switching between two distinct power levels (first and second electric current supply states). The control section adjusts this power parameter based on detected ultrasonic impedance, increasing power only when the treatment portion approaches biting conditions, thus maintaining treatment effectiveness while minimizing overall energy consumption.
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
The system effectively eliminates the biting of the ultrasonic probe into hard tissues by increasing vibration amplitude when necessary, ensuring efficient treatment and preventing probe damage.
Implementation Method 1
an ultrasonic transducer (vibration generation section) 22 which generates an ultrasonic vibration by supply of electric power P
Implementation Method 2
transmitting the generated ultrasonic vibration to a treatment portion 13 through an ultrasonic probe 9
Implementation Method 3
detecting an ultrasonic impedance Z with time while the electric power P is being supplied to the ultrasonic transducer 22
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An energy supplier of an ultrasonic treatment system can output an electric power in a first output mode and a second output mode in which the electric power supplied to a drive force generation unit during a unit time is higher than in the first output mode. A controller maintains an output state of the electric power in the first output mode when a judgment section judges that a load on an ultrasonic probe is less than or equal to a threshold, and switches the output state of the electric power to the second output mode when the judgment section judges that the load is more than the first threshold.