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Blocking element for a dosing mechanism

A technology for dosing and blocking elements, which is used in hypodermic injection devices, infusion sets, ampoule syringes, etc., and can solve problems such as substances that cannot be mixed or insufficiently mixed, and unmixed outflow materials.

Active Publication Date: 2010-03-24
YPSOMED AG
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] If the double-chamber ampoule cannot be completely or only partially screwed into the injection device, there is a possibility that the substance located in the double-chamber ampoule cannot be mixed or mixed insufficiently, and during the following injection, from Inadequately mixed double-chamber ampoules do not deliver the desired substance, for example double-chamber ampoules also give unmixed effluent material

Method used

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  • Blocking element for a dosing mechanism
  • Blocking element for a dosing mechanism
  • Blocking element for a dosing mechanism

Examples

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Embodiment Construction

[0025] figure 1 An exemplary embodiment of a metering mechanism according to the invention, which can be used in an injection device, is shown in a perspective view. The locking sleeve or the housing itself also has a perforation 8a, which in the inserted state of the metering mechanism is located at least in the front end or in the distal side of the housing interior of the injection device, designed as the diameter of the locking ring 1 of the locking element. After being screwed into the ampoule 5 , the inwardly pretensioned holding element 1 a is inserted into said perforation.

[0026] For example by means of a perforation on the housing into which an element of the locking ring 1 is inserted, such as the retaining element 1a, the locking ring 1 is mounted in a rotationally fixed manner relative to the injection device or the housing of the injection device. figure 2 In the starting position shown, the dosing sleeve is therefore mounted in the injection device in a rota...

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Abstract

The invention relates to a blocking element (1) for a dosing mechanism of an injection device with at least one holding element (1a) that can interact with the dosing mechanism, or with a dosing element (2) of the dosing mechanism, in such a way that an adjustment movement of the dosing mechanism or of the dosing element can be prevented in a starting position of the blocking element and is permitted only after a movement or displacement of the blocking element or of the holding element. The invention also relates to a method for preparing an injection device for dispensing a substance from anampoule or two-chamber ampoule (5), wherein the ampoule or two-chamber ampoule is introduced and preferably screwed into the injection device, and the blocking or anti-rotational locking of the dosing or adjusting element or lifting element of the injection device is only released when the ampoule has been introduced so far into the injection device that a substance can be dispensed from the ampoule in a defined or dosed manner, or that the substances contained in the two-chamber ampoule are preferably completely mixed.

Description

technical field [0001] The present invention relates to a locking element for blocking the dosing mechanism of an injection device, especially when used with a double-chamber ampoule, which contains two mutually spaced substances, which should be as close as possible before dispensing through the injection device. Mix as thoroughly as possible. Background technique [0002] If the double-chamber ampoule cannot be completely or only partially screwed into the injection device, there is a possibility that the substance located in the double-chamber ampoule cannot be mixed or mixed insufficiently, and during the following injection, from Inadequately mixed double-chamber ampoules do not deliver the desired substance, and double-chamber ampoules, for example, also give unmixed effluent material. Contents of the invention [0003] The object of the present invention is to propose an element for an injection device by means of which safety in use of the injection device can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/315
CPCA61M5/31591A61M5/31535A61M5/31571A61M5/2448
Inventor J·赫谢尔U·莫瑟C·施鲁尔M·奇伦
Owner YPSOMED AG
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