Ultrasonic Surgical System Pressing Force Control
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Solution Overview
Problem
Existing ultrasonic surgical systems lack an efficient method to determine and maintain the optimal pressing force, amplitude, and resonance frequency for effective tissue treatment, which affects the efficiency and safety of surgical procedures.
Innovation Solution
An ultrasonic surgical system that includes a circuit to detect the pressing force, calculate the product of the pressing force, amplitude, and resonance frequency, and compare it to predetermined values to generate signals for the operator to adjust the parameters, ensuring appropriate treatment conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual force management is used to control pressing force, then the system structure remains simple, but the treatment precision and safety are insufficient
Solution Approach 1:
The patent replaces manual mechanical force management with an automated control system that uses sensors to detect pressing force and a control unit to calculate and compare the product value (pressing force × amplitude × resonance frequency). This substitution of mechanical control with electronic sensing and computational control enables precise treatment parameters while maintaining manageable system complexity through integrated circuitry.
Solution Approach 2:
The system implements feedback by continuously detecting the pressing force applied to the probe, calculating the product value, comparing it against predetermined thresholds, and providing real-time feedback to the operator through visual or auditory signals. This closed-loop feedback mechanism ensures treatment precision by guiding operators to maintain optimal pressing force without requiring complex manual control.
2Reliability
If the system monitors multiple parameters (pressing force, amplitude, resonance frequency), then the treatment safety improves, but the device complexity increases
Solution Approach 1:
The patent merges multiple monitoring functions into a single integrated control unit that simultaneously processes pressing force detection, amplitude measurement, and resonance frequency detection. By combining these separate monitoring functions into one unified system that calculates the product value of all three parameters, the design improves treatment safety through comprehensive monitoring while avoiding the complexity of multiple independent monitoring systems.
Solution Approach 2:
The control unit serves multiple functions: it detects pressing force, measures amplitude, detects resonance frequency, calculates the product value, compares it against thresholds, and generates feedback signals. This multi-functional universal control unit improves treatment safety by monitoring all critical parameters through a single system rather than requiring separate dedicated systems for each parameter.
3Productivity
If real-time calculation and comparison of product value is implemented, then the operational efficiency improves, but the circuit complexity increases
Solution Approach 1:
The control unit automatically performs real-time calculation of the product value (pressing force × amplitude × resonance frequency) and compares it against predetermined thresholds without requiring external intervention. This self-service automated calculation and comparison system improves operational efficiency by providing immediate feedback to operators, while the integration of these functions within a single control unit keeps circuit complexity manageable.
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 enables operators to perform efficient and safe surgical procedures by intuitively determining whether the treatment is appropriate, reducing heat invasion and allowing for precise adjustments without manual force management.
Implementation Method 1
an ultrasonic transducer configured to ultrasonically vibrate
Implementation Method 2
ultrasonic transducer configured to ultrasonically vibrate
Data Source
AI summary
An ultrasonic surgical system includes an ultrasonic transducer, a probe, and at least one circuit. The ultrasonic transducer is designed to ultrasonically vibrate. The probe is coupled to the ultrasonic transducer and is designed to treat a living tissue by the ultrasonic vibration. The circuit performs functions including detecting a pressing force of the probe against the living tissue, calculating a value of a product of the pressing force, an amplitude of the ultrasonic vibration, and a resonance frequency of the probe, comparing the calculated value with a predetermined product value, and generating a predetermined signal based on a result of the comparison.