A silicone hemodialysis indwelling needle isolation plug

By coaxially embedding a plastic support ring within the silicone plug body, the problem of insufficient support in traditional rubber-made indwelling needle isolation plugs is solved, improving the durability and sealing performance of the isolation plug and reducing the risk of leakage.

CN224421638UActive Publication Date: 2026-06-30JIANGYIN HOMEN RUBBER PLASTIC PROD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN HOMEN RUBBER PLASTIC PROD
Filing Date
2025-07-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional rubber indwelling needle plugs lack sufficient support after repeated punctures, which can easily lead to seal failure and a high probability of leakage.

Method used

A silicone plug is coaxially embedded with a plastic support ring, which utilizes its high rigidity to provide stable radial support, reduce permanent deformation after multiple punctures, and improve the durability of the isolation plug. However, the silicone plug inside the plastic support ring provides stable radial support, which reduces the stability of the isolation plug's radial support and thus reduces its durability.

Benefits of technology

By coaxially embedding a plastic support ring within the silicone plug body, stable radial support is provided, reducing the probability of leakage after multiple punctures of the isolation plug and improving its durability.

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Abstract

This utility model discloses a silicone hemodialysis indwelling needle isolation plug, belonging to the field of medical device technology. The isolation plug includes a silicone plug body with a plastic support ring coaxially embedded inside. The silicone plug body inside the plastic support ring has a non-penetrating pre-incision. Through the composite structure design of silicone and the plastic support ring, while ensuring self-sealing performance after puncture, the high rigidity of the plastic support ring provides radial support, significantly enhancing the structural stability of the isolation plug. Compared to traditional rubber isolation plugs, this structure reduces deformation caused by multiple punctures, allowing the pre-incision to close more quickly after puncture, effectively reducing the risk of leakage.
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Citation Information

Patent Citations

  • Hemostatic sealing plug for remaining needle

    CN217040942U