Blood transfusion catheter with flow regulation and anti-reflux structure

By employing a conical piston and conical guide channel for precise flow regulation, along with a dual anti-reflux structure with an elastic valve linkage baffle, the problems of low adjustment accuracy and insufficient anti-reflux in blood transfusion catheters are solved, achieving precise control and improved safety during the blood transfusion process.

CN122399166APending Publication Date: 2026-07-17TAIZHOU CENT HOSPITAL +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAIZHOU CENT HOSPITAL
Filing Date
2026-06-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing blood transfusion catheters are insufficient in terms of adjustment precision and anti-reflux, making it difficult to meet the needs of critically ill patients and children who have strict requirements for blood transfusion speed.

Method used

It adopts a precise flow regulation structure with a conical piston and a conical guide channel, combined with a dual anti-backflow structure of elastic valve and linkage baffle, and integrates a pressure measuring connector to achieve flow fine adjustment and anti-backflow functions.

Benefits of technology

It achieves continuous fine-tuning of blood flow rate with an accuracy of up to 0.1 ml/min, prevents blood reflux, improves transfusion safety and ease of operation, and supports real-time monitoring of central venous pressure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122399166A_ABST
    Figure CN122399166A_ABST
Patent Text Reader

Abstract

本发明涉及医疗器械技术领域,具体公开了一种带流量调节与防反流结构的输血导管,包括输入导管和输出导管,所述输入导管和输出导管之间设置有精准流量调节机构,所述输入导管和输出导管远离精准流量调节机构的一端均设置有连接组件,所述输出导管靠近连接组件的一侧设置有防反流机构,所述输入导管的连接组件用于连接输血袋,所述输出导管的连接组件用于与患者血管内的滞留针连接,实现血液输送。通过锥形活塞与锥形导流通道精密配合的流量调节结构,替代传统压轮挤压管路方式,通过螺纹杆驱动活塞轴向位移实现流量连续微调,无管路变形、磨损与破裂风险,解决了传统导管调节精度低、流量易偏移的问题。
Need to check novelty before this filing date? Find Prior Art