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Tiltable safety needle

A technology of needle assembly and needle cannula, which is applied in the field of needle assembly and can solve the problems of complexity and damage by the tip of the needle cannula

Inactive Publication Date: 2011-11-16
NOVO NORDISK AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with handling pen needle assemblies (indeed, with any handling of pen needle assemblies) is the potential risk of injury from any tip of the needle cannula
However, these constructions are quite complex and require several springs in order to operate

Method used

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  • Tiltable safety needle
  • Tiltable safety needle
  • Tiltable safety needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] When the terms "upper" and "lower", "right" and "left", "horizontal" and "vertical", "clockwise" and "counterclockwise" or similar relative expressions are used hereinafter, they refer only to the attached diagrams and do not imply actual use cases. The shown figures are schematic representations, for which reason the arrangement of the different structures and their relative dimensions are intended for illustrative purposes only.

[0042]In this context, it may be convenient to define the term "distal" in the figures as meaning the end of the needle cannula that penetrates the patient, while the term "proximal" means referring to the end pointing away from the patient in the situation of use. the opposite end.

[0043] exist figure 1 The needle assembly disclosed in includes a needle cannula 20 that is glued to the needle hub 1 by glue drops 25 . The needle cannula 20 comprises a distal portion 21 (patient end) for piercing into a patient and a proximal portion 22 ...

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PUM

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Abstract

A shielded needle assembly for a drug delivery device in which a needle cannula (20) tilts once the needle assembly is removed from the drug delivery device whereby a non-patient end (22) of a needle cannula (20) abuts an inside surface of the needle hub (1) and a patient end (21) of the same needle cannula (20) blocks the axial movement of the shield (50).

Description

technical field [0001] The present invention relates to needle assemblies having a shielded needle cannula, and more particularly to a pen needle assembly in which both ends of the needle cannula are secured after use. Background technique [0002] Patients with diabetes self-inject insulin daily. For this purpose, a large number of different pen systems have been developed over the past 30 years. What pen injectors have in common is that they contain a container or cartridge that holds the liquid drug to be injected. To deliver liquid medication from an injection pen and into a patient's body, a pen needle assembly is used. Such a pen needle assembly has a needle cannula with a non-injecting end that pierces into the cartridge when the pen needle assembly is attached to the injection pen and enters into the patient's body during injection to communicate with the inside of the cartridge. A patient end that establishes fluid communication between the patients. The needle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M2005/3224A61M5/3257A61M2005/3249
Inventor J.B.舒伯特K.格勒波尔M.v.比罗
Owner NOVO NORDISK AS