Arteriovenous puncture needle

By designing scales, stabilizing rings, ratchets and positioning mechanisms on the arteriovenous puncture needle, the problem of inaccurate control of the needle insertion angle and depth by medical staff is solved, fast and accurate puncture operations are achieved, pain and vascular damage to patients are reduced, and safety and comfort are ensured.

CN119326970BActive Publication Date: 2025-09-26YINGTAN RONGJIA GRP MEDICAL EQUIP IND CO LTD +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202411465656.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-09-26
Estimated Expiration
2044-10-21

AI Technical Summary

Technical Problem

Inexperienced medical staff find it difficult to accurately control the angle and depth of needle insertion when using arteriovenous puncture needles, causing pain and vascular damage to patients.

Method used

A puncture needle with a scale was designed, which combined a stabilizing ring, a ratchet mechanism, and a positioning mechanism. The appropriate needle insertion angle was achieved by rotating the fixing part clockwise, and the influence of skin wrinkles was reduced by the expansion mechanism. Soft PVC material and a protective mechanism were used to ensure sterility.

Benefits of technology

It improves the accuracy and safety of needle insertion, reduces the patient's pain and vascular damage, avoids the risk of cross infection, and improves operational flexibility and patient comfort.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention provides an arteriovenous puncture needle, which relates to the technical field of medical devices, and includes a first fixing member, a puncture needle slidably connected to the first fixing member, a scale provided on the puncture needle, a propeller fixedly connected to the puncture needle, a short rod fixedly connected to the propeller, a hose connected to the side of the puncture needle close to the propeller, a second connecting member fixedly connected to the bottom surface of the first fixing member, and the second connecting member rotatably connected to the first connecting member. The present invention fixes the device to the patient's arm through a stabilizing ring, and then by rotating the first fixing member clockwise, the first fixing member drives the second connecting member to rotate clockwise, the first fixing member drives the puncture needle and then drives the propeller clockwise to rotate. When the propeller drives the puncture needle forward, the needle can be inserted at a suitable insertion angle, avoiding the problem of incorrect insertion angle caused by the unstable hands of new medical staff. At the same time, under the limiting effect of the limiting member on the ratchet, the ratchet will not drive the second connecting member to rotate counterclockwise.
Need to check novelty before this filing date? Find Prior Art