Protective device for syringe needles

JP7874197B2Inactive Publication Date: 2026-06-15セーフジェクト インターナショナル プライベート リミテッド
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Patent Information

Application Number
JP2024564963
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-05-05
Filing Date
2023-05-03
Publication Date
2026-06-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing protective devices for syringe needles can be intentionally or unintentionally misused, leading to a risk of needle protrusion and potential infection, and are difficult to attach to needle carriers without contacting the needle tube during assembly.

Method used

A protective device with a deformable lobe and stop mechanism, guided by at least one element, ensures the needle tube enters and remains in a safety zone by temporarily deforming the lobe and preventing further deformation with a stop, while allowing easy attachment to the needle carrier without initial contact.

Benefits of technology

The device effectively prevents unintentional or intentional needle protrusion and ensures safe handling by securely keeping the needle within the cover after use, suitable for various needle diameters, including thin insulin syringes, with minimal force required for entry and secure locking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a protection device 1 for a needle tube 2 of a syringe, the protection device comprising a base 3 and a cover 4 connected to the base 3, the cover 4 being pivotally supported on the base 3 such that the cover 4 is movable in a pivot plane 8 relative to the base 3 from a starting position to an activated position in a first pivot direction and finally in a second pivot direction opposite to the first pivot direction to a protective position, the cover 4 comprising a retaining device 9 in an internal space 6, the retaining device being configured to interlock the needle tube 2 by a snap-fit ​​lock during the transition of the cover 4 to the protective position. In order to provide a protective device which is easily automatically applicable to the needle carrier while providing a high degree of safety against the needle tube unintentionally emerging from the cover after being used for injection, the present invention proposes that the holding device 9 comprises a deformable lobe 10, a stop 11 associated with the lobe 10 and at least one guide element 12, 13, the stop 11 being configured such that the lobe 10 can come into contact with a contact surface 34 of the stop 11, and the guide elements 12, 13 being associated with the stop 11 and configured to guide the needle tube 2.
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Citation Information

Patent Citations

  • medical needle shield

    JP2005508657A

  • Needle protection assembly

    JP2007503871A

  • Safety needle assembly and method of forming this safety needle assembly

    JP2007505722A

  • Pivotable needle protector

    JP2012525893A

  • Needle protection devices with operating and non-operating states

    JP2014520590A