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Injection device

A technology for injection devices and delivery devices, applied in the direction of syringes, ampoule syringes, hypodermic injection devices, etc., which can solve problems such as difficult to read numbers

Active Publication Date: 2021-05-14
榭利工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this device is that during the initial movement of the button, the dose dial with numbers moves, which makes it difficult to read the numbers during the injection

Method used

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Examples

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Embodiment Construction

[0048] Hereinafter, the terms "upper" and "lower", "upper" and "lower", "upward" and "downward", and "left" and "right" refer to the drawings and do not necessarily correspond to usage. The term "axial" should be interpreted as being parallel to the main axis of the device.

[0049] Components that are fixed together are labeled with a single multiple component number. However, they may also be marked as one part, and functional features from a first part fixed to a second part are also considered to be features of the second part.

[0050] Figure 1-5 A device according to the invention is shown with a transmission between the button and the screw, also called a mechanical gain device. exist figure 1 , observe the device in oblique view. Visible is the housing 1 with the window 11 and the dose selector 41 integrated with the dose dial 2 with printed numbers, in which window the number of set doses is displayed, and through the dose dial 2, by clockwise and counterclockwis...

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PUM

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Abstract

An injection device is disclosed wherein a dose can be set by rotating a dose setting member, whereby a push button is elevated from one end of the device a distance proportional to the set dose from a position fixed relative to the housing, and wherein the set dose can then be injected by pressing the push button back to its non-elevated position, through which motion a screw will move approximately the same distance or a smaller distance. The invention provides a method of reducing the dose force and / or the push-button movement during injection.

Description

technical field [0001] The present invention relates to a dose delivery device wherein the dose can be set by rotating the dose setting element whereby the button is raised from one end of the device and wherein the button can be raised by pressing the button back to its unraised position This moves the screw axially which engages the plunger in the cartridge and causes the medicament to exit the cartridge through the needle to inject the set dose. Background technique [0002] EP0327910 describes a device in which the dose is set by rotating a tubular injection button which engages a threaded screw, thereby raising the injection button from the end of the injection device. By depressing the injection button until it abuts against a fixed stop, the threaded screw moves a distance corresponding to the movement of the injection button. The threaded screw abuts against the plunger in the cartridge and the drug is expelled from the cartridge. This injection device transmits th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/315
CPCA61M2005/2403A61M5/31551A61M5/31585A61M5/31595A61M2205/581A61M5/31501A61M5/31541A61M5/31558A61M5/31563A61M2005/3126A61M2205/585
Inventor 克劳斯·施密特·默勒
Owner 榭利工程塑料有限公司