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Drug delivery device with brake mechanism

A technology for delivering devices and medicines, which can be used in infusion sets, auto-injectors, hypodermic injection devices, etc., and can solve the problems of broken and damaged glass cartridges.

Active Publication Date: 2016-06-01
NOVO NORDISK AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, if the needle is not mounted on the cartridge in such a situation, the drug in the cartridge will be compressed due to the impact of the drive element, potentially causing damage such as cracking of the inserted glass cartridge

Method used

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  • Drug delivery device with brake mechanism
  • Drug delivery device with brake mechanism
  • Drug delivery device with brake mechanism

Examples

Experimental program
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Embodiment Construction

[0038] When terms such as "upper" and "lower", "right" and "left", "horizontal" and "vertical" or similar relative expressions are used hereinafter, these refer only to the drawings and not necessarily to actual usage situations. The shown figures are schematic representations, for which reason the configuration of the different structures as well as their relative dimensions are intended for illustrative purposes only. When the term member or element is used with respect to a given part, it generally indicates that in the described embodiment the part is a unitary part, however, the same member or element may alternatively comprise a number of sub-parts, as the described part Two or more of these may be provided as a unitary component (eg manufactured as a single injection molded part). When the constraining members are mounted axially free of each other, this generally means that they are able to move relative to each other, usually between defined rest positions, while when...

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PUM

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Abstract

A drug delivery device (1) comprises a housing and an expelling assembly adapted to expel a dose of drug from a cartridge (380). The expelling assembly comprises a drive spring (135) which in an energized state is adapted to drive the expelling assembly, a rotating component (550,650) adapted to rotate relative to an axis of rotation during expelling of a dose of drug, and user actuated release means (191, 190)for releasing the drive spring to thereby expel a dose of drug. The device is provided with a brake element (575, 675) being moveable in a plane generally perpendicular to the axis of rotation, the brake element being adapted to engage the rotating component such that during rotation thereof the brake element is moved back and forth, whereby the brake element provides a braking action on the rotating component.

Description

technical field [0001] The present invention generally relates to a drug delivery device adapted to hold a drug filled cartridge and expel a dose therefrom. Background technique [0002] The present disclosure primarily refers to the treatment of diabetes, however, this is only an exemplary use of the present invention. [0003] The most common type of drug delivery device adapted to deliver a given drug subcutaneously is in the form of a pen-shaped drug delivery device adapted to expel a desired amount of drug from a loaded cartridge by moving the cartridge plunger in the distal direction, The drug is thereby expelled via the attached hypodermic needle. The means for moving the piston is usually in the form of a piston rod driven distally by the expulsion mechanism. The device can be supplied as a "pre-filled" single-use device, where the drug-filled cartridge cannot be replaced and the device is discarded when the cartridge has been emptied; or as a "durable" reusable A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/31A61M5/24A61M5/315
CPCA61M5/24A61M5/31501A61M5/31553A61M2005/3143A61M5/20A61M5/31583A61M5/2033A61M5/31528A61M5/31551A61M5/31563A61M2005/2411
Inventor M.索伦森B.克沃斯杰格K.H.马德森C.普兰贝奇
Owner NOVO NORDISK AS
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