Passive safety catheter system

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
The passive compressible element or the needle shield element automatically shields the introducer needle, thereby solving the problem of blood splashing when the catheter assembly is retracted, achieving safety and simplifying operation.

CN120813402APending Publication Date: 2025-10-17BECTON DICKINSON & CO

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Patent Information

Application Number: CN202480015357.9
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Priority Date: 2024-03-27
Filing Date: 2024-03-28
Publication Date: 2025-10-17

Application Information

Patent Timeline

27 Mar 2024

Priority

28 Mar 2024

Application

CN202480015357.9

17 Oct 2025

Publication

CN120813402A

IPC: A61M25/06; A61M25/00

CPC: A61M25/0631; A61M25/0097; A61M25/0618; A61M25/0606; A61M25/0043

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Application Domain

Guide needles

Technology Topics

Catheter hub Biomedical engineering

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AI Technical Summary

Technical Problem

Existing catheter assemblies are prone to causing blood splatter when the introducer needle is retracted, and traditional silicone gel dampers are inconvenient and messy to use.

Method used

A passive compressible element or needle shield element is used to automatically shield the introducer needle, reduce its retraction speed and prevent blood splashing. Shielding is achieved through design such as misalignment of the holes in the compressible element or offset of the needle shield element.

Benefits of technology

It effectively reduces the occurrence of blood splatter, provides safety against needle stick injuries, and simplifies the guide needle retraction process.

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Abstract

A catheter system (10) may include a catheter hub (12) that may include a distal end (14), a proximal end (16), and a lumen (18) extending through the distal end of the catheter hub and the proximal end of the catheter hub. The catheter system may include a catheter (20) extending from the distal end of the catheter hub. The catheter system may include a needle hub (22) and an introducer needle (24) extending from the needle hub. The introducer needle may extend through the catheter when the introducer needle is in the advanced position. The catheter system may include a compressible element (26) or another needle shield element configured to protect the introducer needle from distal movement beyond the compressible element or another needle shield element.

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