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Automatic injection device

A technology of an injection device and a casing, which is applied in the directions of automatic injectors, syringes, hypodermic injection devices, etc., can solve the problems of users not having enough medicine, waste, and undesired waste, etc.

Inactive Publication Date: 2018-05-11
OWEN MUMFORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, since the drug will now be under pressure, there is a risk that the user may inadvertently empty the syringe contents into the air if the user realizes the mistake and subsequently removes the shield
[0008] Users may not have enough of the drug, so this waste can be a serious problem
Waste may also be undesirable due to cost (some drugs can be very expensive)

Method used

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Examples

Experimental program
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Embodiment Construction

[0077] refer to Figure 1 to Figure 15 , the injection device 1 according to the invention will now be described. The embodiments shown in the figures are specific embodiments and are not intended to limit the manner in which the invention may be practiced. For example, although certain components are shown as separate, if they were integrated to function mechanically, those skilled in the art will recognize that two embodiments are disclosed herein; Some parts are shown as one piece, but if it can be provided as two or more parts, such an embodiment is considered to be within the scope of the invention.

[0078] figure 1 Shown is a perspective view of an automatic injection device 1 (hereinafter referred to as autoinjector 1) showing, among other components, a shield remover 2, a housing 3, a dose selector 4 , Trigger button 5 and observation window 6. Figure 2a and Figure 2b A cross-section through the autoinjector 1 is shown (where, Figure 2a The plane of the cross...

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PUM

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Abstract

There is provided an injection device for delivering a medicament from a container. The device comprises, a housing for housing a container, a plunger substantially housed within the housing and whichis movable within the housing, a force applicator for applying a force to the plunger, a trigger (5) coupled to the force applicator for releasing the force applicator to fire the device, a boot (2),a dose selector (4) for allowing a user to select a dose of medicament, and a first mechanical interlock arranged such that the force applicator cannot be released until the dose selector has been operated to select the dose of medicament, and a second mechanical interlock arranged such that the dose selector cannot be operated to select the dose of medicament prior to removal of the boot.

Description

technical field [0001] The present invention relates to an injection device for delivering a medicament from a container. Background technique [0002] Injection devices, such as automatic injection devices, are routinely used in the medical field to deliver measured doses of medicaments to users. Typically, injection devices have a user-friendly design, allowing them to be used safely by patients for self-administration, although in some cases they can also be used by trained personnel. They can be designed to be carried by the user for ready use; in this case, they should be as small and unobtrusive as possible to improve user compliance. Autoinjection devices for self-administration of parenteral medications include single-dose and multi-dose reusable and disposable auto-injectors and pen-injectors (e.g. insulin pens) that are suitable for a wide range of primary containers, The containers include prefilled glass and plastic syringe barrels and prefilled drug cartridges...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/315A61M5/32
CPCA61M5/2033A61M5/315A61M5/31553A61M5/3156A61M5/3157A61M5/31591A61M5/3204A61M2005/206A61M2005/2073A61M2005/2086A61M5/20A61M5/31501A61M5/31511A61M5/31533A61M5/31535A61M5/31566A61M5/31571A61M5/32A61M2005/3143A61M2005/3151
Inventor 詹姆斯·保罗·格里莫尔德比奥利弗·加雷思·海德
Owner OWEN MUMFORD
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