Blood Vessel Position Display Device for Needle Puncture Guidance
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Solution Overview
Problem
Conventional systems do not effectively display blood vessel positions suitable for specific purposes, such as needle puncture, which is necessary for blood collection.
Innovation Solution
A blood vessel position display device and method that analyze images of a target area using image processing to identify and select blood vessels based on specific parameters like straightness, direction, length, and thickness, then project display lines corresponding to these vessels onto the skin for easy identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional blood vessel visualization methods are used, then blood vessels can be visualized, but positions suitable for specific purposes (e.g., needle puncture) cannot be identified
Solution Approach 1:
The patent segments blood vessel information by dividing all detected blood vessels into two categories: general blood vessels and conforming blood vessels. This segmentation is achieved by extracting specific parameters (length, curvature, direction) and comparing them against predetermined conditions, thereby isolating vessels suitable for specific purposes like needle puncture from the overall blood vessel network.
Solution Approach 2:
The patent applies local quality by assigning different visual representations to different types of blood vessels. Conforming blood vessels are displayed with distinctive features (e.g., highlighted markers, different colors, or enhanced visibility) compared to non-conforming vessels, allowing users to quickly identify vessels that meet specific criteria without being overwhelmed by all visible vessels.
2Quantity of substance
If all blood vessels are visualized, then complete blood vessel information is provided, but identification of suitable vessels for specific purposes becomes difficult
Solution Approach 1:
The patent extracts conforming blood vessels from the complete set of visualized blood vessels by applying filtering criteria based on predetermined conditions (minimum length, maximum curvature, directional alignment). This extraction process isolates only those vessels that meet the specific requirements for purposes such as needle puncture, removing unnecessary information and focusing attention on relevant vessels.
Solution Approach 2:
The patent employs color changes or visual differentiation to distinguish conforming blood vessels from non-conforming ones. By assigning specific colors, brightness levels, or visual markers to vessels that meet the predetermined conditions, the system makes it immediately apparent which vessels are suitable for specific purposes, greatly simplifying the selection process.
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
Enables the visualization of blood vessels that are optimal for needle puncture, facilitating the collection process by clearly marking suitable vessels on the skin.
Implementation Method 1
an image for analysis of a target part to image processing to acquire blood vessel information including positions and shapes of blood vessels
Implementation Method 2
a projection device configured to cause a position of the display line to correspond to a position of the conforming blood vessel so as to project the projection image on the target part
Data Source
AI summary
A blood vessel position display device (1) includes an image processing device (31) configured to subject an image for analysis of a target part (2) to image processing to acquire blood vessel information including positions and shapes of blood vessels included in the target part (2), a selection device (32) configured to choose blood vessels as conforming blood vessels in which a parameter obtained from the blood vessel information satisfies specific conditions, an image generation device (33) configured to generate a projection image including display lines at least set to have lengths corresponding to the conforming blood vessels, and a projection device (40) configured to cause the positions of the display lines to correspond to the positions of the conforming blood vessels so as to project the projection image on the target part (2).