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Syringe flange protector

A syringe and protector technology, applied in the field of syringe flange protectors, can solve problems such as flange breakage, and achieve the effect of reducing the risk of accidental breakage

Active Publication Date: 2013-02-06
SHL MEDICAL AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Associated with the inherent brittleness of glass, this fact indicates the associated risk of flange fracture when standard prefilled syringes are used in autoinjector devices

Method used

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  • Syringe flange protector
  • Syringe flange protector
  • Syringe flange protector

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] figure 1 A standard prefilled syringe 12 is shown contained in a syringe holder 22 to which the syringe flange protector 10 is attached. The syringe 12 includes a barrel 14 for containing a volume of medicament, a piston 18 movable axially within the barrel 14 , a needle 20 at one end of the barrel 14 , and a needle 20 from the barrel 14 at an end remote from the needle 20 . Radially protruding flange 16 . The syringe 12 is supported in a syringe holder 22, which is a conventional component in autoinjector devices. In a preferred embodiment, the syringe holder 22 is equivalent to the syringe support device described in WO-A-2007 / 083115. The syringe holder 22 has a hook portion 24 extending radially rearwardly (ie, away from the end of the needle 20 ), and the hook portion 24 hooks to the syringe flange protector 10 to hold it axially close to the syringe. In the protected position of the flange 16.

[0031] One embodiment of a syringe flange protector 10 is shown in...

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PUM

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Abstract

A syringe flange protector for transmitting an axial force from a drive element to a syringe barrel, the syringe barrel having a flange projecting radially from the barrel; comprising a spacer element that is adapted to be disposed axially rearward of at least part of the flange, and is further adapted to communicate with the drive element through one or more points at a first radial distance from a longitudinal axis of the spacer element, and to transmit axial force from the drive element to the barrel through one or more points at a second radial distance from the longitudinal axis of the spacer element, where the second radial distance is less than the first radial distance.

Description

technical field [0001] The present invention relates to a syringe flange protector, and more particularly to a syringe flange protector for use in association with an aotu injector device. Background technique [0002] Standard prefilled syringes, such as those used in auto-injector devices, are usually made of glass. An example of an autoinjector device is the use of a standard prefilled syringe as described in WO-A-2007 / 083115 (The Medical House plc.). In this autoinjector device, the drive element acts on the flange of the syringe, causing it to move axially forward to insert the needle into the injection site. This load is applied axially by the drive element, causing a bending moment in the flange. The flange then transmits force to axially load the syringe barrel advancing it forward. [0003] A known problem associated with some standard pre-filled syringes is that the flange is often out of specification (eg, where its actual thickness is less than its nominal thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/31A61M5/00
CPCA61M5/2033A61M2005/2407A61M5/3137A61M5/31501A61M5/24A61M5/3135
Inventor I·克莱瑟罗N·B·卡米什
Owner SHL MEDICAL AG