Ultrasonic Probe Puncture Guide Slit and Through Hole Design
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Solution Overview
Problem
In laparoscopic surgery, the operability of the puncture needle is hindered due to the difficulty in visually recognizing the puncture guide located beneath the skin, and the puncture guide's design, whether a hole or groove, leads to challenges in accurately guiding the needle.
Innovation Solution
The ultrasonic probe is equipped with a puncture guide that includes a through hole and a slit, where the slit extends to the outer edge of the probe in directions other than the array and lens directions, enhancing the puncture needle's guidance and preventing it from falling out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a puncture guide hole is used, then the puncture needle can be precisely guided, but the operator cannot visually recognize the puncture guide located behind the skin
Solution Approach 1:
A marker is introduced as an intermediary element between the skin surface and the puncture guide hole. The marker protrudes from the skin surface and serves as a visible indicator that corresponds to the location of the puncture guide hole beneath the skin, allowing the operator to visually identify and accurately puncture at the correct location without direct visualization of the hidden guide structure.
2Ease of operation
If a puncture guide groove is used, then the puncture needle can access the guide from the side, but the puncture needle easily falls off during guiding
Solution Approach 1:
The puncture guide structure incorporates a recessed portion with specific geometric characteristics (width, depth, and positioning) that creates localized constraints. This recessed structure provides directional guidance for the puncture needle while physically preventing lateral displacement and falling off, combining accessibility with retention functionality through carefully designed local geometry.
3Adaptability or versatility
If the puncture guide is located behind the skin, then the ultrasonic probe can be inserted through the skin, but the operator cannot directly visualize the puncture guide for accurate needle insertion
Solution Approach 1:
The marker serves as a visual intermediary that bridges the gap between the hidden puncture guide structure and the operator's visual field. By protruding from the skin surface at the precise location corresponding to the puncture guide hole, the marker enables accurate needle insertion without requiring direct visualization of the underlying guide structure, maintaining both probe insertion capability and puncture guidance ease.
Data Source
AI summary
An ultrasonic probe of an embodiment includes a head part. The head part includes a plurality of ultrasonic elements that output ultrasonic waves and receive reflected waves of the output ultrasonic waves. The head part is provided with a through hole for guiding a puncture needle and a slit for guiding the puncture needle to the through hole.