A safe blood collection fistula needle

By introducing protective and adjustment components into the fistula needle, and utilizing the design of magnetic rings and protective caps, the problem of contaminant entry is solved, achieving the sealing and safety of the infusion tubing and reducing the risk of cross-infection.

CN224421011UActive Publication Date: 2026-06-30SICHUAN ACADEMY OF MEDICAL SCI SICHUAN PROVINCIAL PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ACADEMY OF MEDICAL SCI SICHUAN PROVINCIAL PEOPLES HOSPITAL
Filing Date
2025-01-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

After use, dust and other contaminants can easily enter the inside of the existing arteriovenous fistula needle, leading to blood collection tube contamination and increasing the risk of cross-infection.

Method used

A safe blood collection fistula needle including a protective component and an adjustment component was designed. The magnetic ring and protective cap work together to prevent external contaminants from entering, while the sealing component and snap-fit ​​component ensure the airtightness of the connection and prevent blood leakage.

Benefits of technology

It effectively prevents dust and other contaminants from entering the infusion tube, reduces the risk of cross-infection, and ensures that blood does not leak during the blood draw process, thus improving the safety and reliability of the blood collection process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a safe blood collection arteriovenous fistula needle, including an infusion tube. One end of the infusion tube is fixedly connected to a connector, and the bottom surface of the connector is fixedly connected to a protective assembly. The protective assembly includes an elastic rope, a protective cap, and a magnetic ring. Both sides of the connector are fixedly connected to locking frames, and locking assemblies are fixedly connected inside each of the two sets of locking frames. Each set of locking assemblies includes several sets of return springs, several sets of connecting posts, and locking plates. This safe blood collection arteriovenous fistula needle, through the setting of the protective and adjusting components, remains on the patient's body at the end of blood collection. Rotating the adjusting valve causes the adjusting plate to rotate, blocking the channel inside the adjusting cylinder to prevent blood leakage. The protective cap is then placed on the connector, and the magnetic block attracts the magnetic ring for fixation. The protective cap prevents dust and other contaminants from entering the infusion tube, thereby reducing the risk of cross-infection.
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