Portable Ultrasonic Diagnostic Device Power Efficiency
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Solution Overview
Problem
Existing portable ultrasonic diagnostic apparatuses have low power efficiency due to uniform maximum voltages applied for pulse signals, which result in high loads on batteries and circuits, regardless of measurement depth.
Innovation Solution
A portable ultrasonic diagnostic apparatus that adjusts the voltage of pulse signals based on measurement depth, using a voltage supplying portion to supply lower voltages for shallower depths and includes a variable gain amplifier to compensate for attenuation by adjusting amplification properties according to reflection depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uniform maximum voltage is applied to pulse signals regardless of measurement depth, then sufficient power is provided for deep tissue measurement, but power efficiency deteriorates due to high loads on battery and circuits
Solution Approach 1:
The patent implements dynamic voltage adjustment where the pulse signal voltage is varied according to the selected measurement depth. The voltage supplying portion dynamically changes the maximum voltage level based on the measurement depth setting, providing higher voltages for deep tissue measurements and lower voltages for shallow measurements, thereby optimizing power consumption while maintaining measurement capability.
Solution Approach 2:
The patent changes the voltage parameter of the pulse signal based on measurement depth requirements. By adjusting the maximum voltage level according to the depth setting, the system adapts the electrical parameters to match the actual measurement needs, reducing unnecessary power consumption when deep tissue penetration is not required.
2Use of energy by moving object
If lower voltage is supplied for shallower measurement depths, then power efficiency is improved, but measurement precision may deteriorate for deep structures
Solution Approach 1:
The system dynamically adjusts both the transmitting voltage and the amplification gain based on measurement depth. When measuring shallow structures with lower voltage, the variable gain amplifier compensates by applying appropriate amplification to maintain signal quality and image precision comparable to deep tissue measurements.
Solution Approach 2:
The system employs feedback mechanisms where the measurement depth information is used to control both the voltage supplying portion and the variable gain amplifier. This feedback loop ensures that the pulse signal voltage and echo signal amplification are coordinated to maintain consistent image quality across different measurement depths.
3Measurement precision
If variable gain amplifier is used to compensate for attenuation, then image quality is maintained at different depths, but device complexity increases
Solution Approach 1:
The variable gain amplifier is designed to perform multiple functions: compensating for attenuation at different depths, working in coordination with the voltage supplying portion, and adapting to various measurement scenarios. This multi-functional component reduces the need for separate compensation circuits for different depth ranges.
Solution Approach 2:
The variable gain amplifier dynamically changes its amplification parameter based on the measurement depth and the selected amplification properties. By adjusting the gain level according to the depth setting and echo signal characteristics, the system maintains image quality without requiring complex hardware modifications.
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 approach enhances power efficiency by reducing the load on batteries and circuits while maintaining image quality by adjusting voltages and amplification properties based on measurement and reflection depths.
Implementation Method 1
a pulse generating portion configured to generate an electric pulse to be applied to an ultrasonic transducer to generate an ultrasonic wave
Implementation Method 2
a variable gain amplifier configured to compensate for attenuation according to a reflection depth by amplifying an echo signal input from the ultrasonic transducer
Data Source
AI summary
A portable ultrasonic diagnostic device according to the present invention comprises: a measurement depth setting unit for setting the measurement depth intended to be measured; a voltage supply unit for supplying the voltage to be applied to a pulse generation unit depending on the set measurement depth, wherein the smaller the set measurement depth, the smaller the voltage supplied; and a pulse generation unit for generating the electrical pulse to be applied to an ultrasonic transducer in order to generate ultrasonic wave, wherein the generated electrical pulse is an electrical pulse of a voltage corresponding to the voltage supplied from the voltage supply unit.