Medical Probe Ultrasonic Light Unit Positioning
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Solution Overview
Problem
In imaging apparatuses for diagnosis, deviations in scanning positions between ultrasonic and light transmitting and receiving units within a blood vessel occur due to their different sizes and alignment requirements, affecting the accuracy of tomographic imaging.
Innovation Solution
The ultrasonic and light transmitting and receiving units are arranged with a specific angular difference and distance to match their scanning positions, ensuring simultaneous and synchronized scanning within the blood vessel, even during rotary and axial movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ultrasonic wave transmitting and receiving unit and light transmitting and receiving unit are arranged inside a probe, then it is possible to generate both ultrasonic wave tomographic image and light tomographic image, but scanning position deviation occurs between the two imaging modalities
Solution Approach 1:
The patent introduces a new dimension of control by arranging the ultrasonic wave transmitting and receiving unit and light transmitting and receiving unit at different angular positions (azimuth angles) around the probe axis. This angular separation allows independent positioning of each imaging unit while maintaining their functional integration within the same probe, thereby resolving the scanning position deviation problem between the two imaging modalities
2Measurement precision
If transmitting and receiving units are arranged with different angular positions, then scanning position matching can be achieved, but the structural complexity of the probe increases
Solution Approach 1:
The patent divides the transmitting and receiving unit into functionally independent modules: an ultrasonic wave transmitting and receiving unit and a light transmitting and receiving unit, each positioned at specific angular intervals around the probe axis. This modular segmentation allows each unit to be optimized independently while maintaining overall system integration, thus achieving scanning position matching without excessive structural complexity
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 arrangement allows for accurate and synchronized generation of tomographic images, enhancing the observation of the same position within the blood vessel, reducing the impact of pulsation and ensuring effective observation of plaque and other properties.
Implementation Method 1
an ultrasonic wave transmitting and receiving unit for transmitting and receiving an ultrasonic wave
Implementation Method 2
a light transmitting and receiving unit for transmitting and receiving light
Implementation Method 3
An ultrasonic wave and light are transmitted while the transmitting and receiving unit rotates
Data Source
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AI summary
It is possible to observe the same position in an imaging apparatus for diagnosis. According to the present invention, a probe includes a transmitting and receiving unit 221 in which an ultrasonic wave transmitting and receiving unit 310 and a light transmitting and receiving unit 320 are arranged. The ultrasonic wave transmitting and receiving unit 310 and the light transmitting and receiving unit 320 are arranged along an axial direction. A distance L [mm] between a position of the ultrasonic wave transmitting and receiving unit 310 in the axial direction and a position of the light transmitting and receiving unit 320 in the axial direction, and the angular difference θ [degrees] between a transmit direction of an ultrasonic wave of the ultrasonic wave transmitting and receiving unit 310 and a transmit direction of light of the light transmitting and receiving unit 320 satisfy a relationship of L = V/ω × θ/360 when having a rotary velocity ω [r/s] of the transmitting and receiving unit 221 and a movement velocity V [mm/s] of the transmitting and receiving unit 221 in the axial direction.