一种基于超声显影与血管规避的钝性穿刺导引系统

By employing a blunt puncture guidance system with ultrasound imaging and vascular avoidance, and using a rounded blunt needle tip and imaging structure, the problem of inaccurate vascular cutting and positioning in percutaneous renal puncture with sharp puncture needles has been solved, achieving safe and precise puncture operation and channel establishment.

CN122398424APending Publication Date: 2026-07-17THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing sharp needles are prone to rupturing small arteries, small veins, or collecting system mucosa during percutaneous renal puncture. Furthermore, ultrasound-guided positioning is inaccurate, making it difficult to determine the spatial relationship between the needle tip and the target renal calyx, blood vessels, and stones in real time, which increases the risk of bleeding and puncture positioning errors.

Method used

A blunt puncture guidance system based on ultrasound imaging and vascular avoidance is adopted, including a rounded blunt needle tip, imaging structure, channel connection structure and safety sensing structure. It provides visual indication of needle tip position and depth through ultrasound guidance, reduces the risk of vascular cutting damage, and enables the establishment of continuous operation channels.

Benefits of technology

It improves the accuracy and safety of puncture positioning, reduces the risk of vascular cutting damage, ensures puncture efficiency, and achieves a smooth connection from puncture to channel establishment, reducing tissue damage and positioning deviation.

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Abstract

本申请涉及穿刺器具技术领域,公开了一种基于超声显影与血管规避的钝性穿刺导引系统,包括针管、针尖、针芯、显影结构和通道衔接结构。针尖固定于针管远端且其前端为不具有锐利切削刃的圆润钝性结构,用于在穿刺过程中推开血管而非切割;针芯可滑动地容纳于针管内;显影结构设置于针尖和 / 或针管上,用于在超声引导下提供针尖端点位置、针管方向及进针深度的可视化指示;通道衔接结构设置于针管上,用于在针尖到达目标位置后建立从针管至手术器械的连续操作通道。本发明通过钝性针尖从根本上降低血管切割损伤,结合显影结构提高定位精度,并实现穿刺至通道建立的顺畅衔接,提升经皮肾穿刺等微创手术的安全性和可控性。
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Citation Information

Patent Citations

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