Injection device with dose interruption fail safe

A dose, fixed-dose technology, applied in the direction of syringes, hypodermic injection devices, drug devices, etc.

Active Publication Date: 2021-03-30
MEDMIX SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, fractional doses cannot be set with this dose setting mechanism

Method used

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  • Injection device with dose interruption fail safe
  • Injection device with dose interruption fail safe
  • Injection device with dose interruption fail safe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] In the present application, the term "distal portion / end" refers to the part / end of the device, or parts or members thereof, located furthest from the delivery / injection site of the patient depending on the use of the device. Accordingly, the term "proximal portion / end" refers to the portion / end of the device, or a component thereof, that is positioned closest to the delivery / injection site of the patient depending on the use of the device.

[0056] The dose setting mechanism 30 of the present disclosure (see image 3 ) can be used in complete injection sets of many different designs. exist figure 1 One such embodiment of a complete injection device 10 is illustrated in , which is shown in a zero dose state, as indicated by a marking 40 showing zero through the window 3 a of the housing 3 . figure 2 show figure 1 device, wherein the cap 1 is removed to expose the cartridge holder 2 and the proximal needle connector 7. The pen needle 4 is attached to the needle conn...

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PUM

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Abstract

An injection device incorporating a dose setting mechanism is presented where the dose setting mechanism contains a fail safe feature that activates during an interrupted dose delivery event. A dose selector having a projecting rib engages a protrusion on a snap element to prevent the dose knob from moving distally if a user removes an axial force in the proximal direction during dose delivery. The dose setting mechanism can further include a reuse prevention feature.

Description

technical field [0001] The present disclosure relates to an injection device, and in particular to a dose setting mechanism of an injection device, wherein a user may select one or more predetermined fixed dose settings as a direct result of the design and manufacture of individual components of the dose setting mechanism. Changing the design of this single component of the dose setting mechanism allows for efficient manufacture of injection devices that can be customized for specific dosing regimens and / or for dose range evaluation. Background technique [0002] There are many drug delivery devices on the market that are capable of delivering drug doses automatically, semi-automatically or manually. Of the known types of delivery devices, "pen-type" syringes are gaining popularity and are available in both reusable and single-use designs. Such devices are configured with a dose setting mechanism comprising various interacting components for achieving a desired function, su...

Claims

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Application Information

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IPC IPC(8): A61M5/315
CPCA61M5/31593A61M5/3146A61M5/31538A61M5/3156A61M5/31535A61M5/31553A61M5/31551A61M5/31541A61M5/31585A61M5/178A61M5/20A61M2005/3154A61M2005/3126A61M2205/581A61M2205/582A61M2005/2026
Inventor J·凯特尔H·贝希托德
Owner MEDMIX SWITZERLAND AG
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