Unlock instant, AI-driven research and patent intelligence for your innovation.

Torsion spring driven injection device

A technology of torsion spring and injection device, applied in the field of torsion spring driven device and torsion spring injection device

Active Publication Date: 2021-06-11
NOVO NORDISK AS
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although a large number of different dose size settings are possible with such injection devices, it is sometimes necessary to expel only one predetermined dose size and to ensure that the torque in the torsion spring can only be released once the user has set at least the full predetermined dose size. Discharge set dose

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Torsion spring driven injection device
  • Torsion spring driven injection device
  • Torsion spring driven injection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0092] When terms such as "upper" and "lower", "right" and "left", "horizontal" and "vertical", "clockwise" and "counterclockwise" or similar relative expressions are used hereinafter, these are only Refers to drawings and not actual usage. The shown figures are schematic representations, therefore the configuration of the different structures as well as their relative dimensions are for illustrative purposes only.

[0093] In this context, it is convenient to define that the term "distal end" in the figures means the end of the injection device that secures the needle cannula and points towards the user during an injection, while the term "proximal end" means the end that typically carries the injection button. opposite ends, such as figure 1 shown in . Distal and proximal refer to axial orientations extending along the longitudinal axis (x) of the injection device, also as figure 2 published in.

[0094] figure 1 , 2 and 3 disclose a torsion spring actuated injectio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a torsion spring driven injection device for ejecting set doses of a liquid drug. In a first aspect the torsion spring driven injection device is provided with a blocking structure which is operated by the rotatable display element such that the set dose can only be expelled when a certain minimum dose size has been set. In a second aspect the torsion spring driven injection device is provided with a release mechanism which secures that the set dose can only be expelled as one single full dose in one stroke. The two aspects can easily be combined such that the predetermined minimum dose size most be expelled as one single dose.

Description

technical field [0001] The present invention relates to an automatic torsion spring driven injection device having a mechanical and rotatable display for showing the size of the dose being set. More particularly, the present invention relates to torsion spring driven devices in which the user can only inject once a minimum dose size has been set. [0002] The invention also relates to such torsion spring injection devices, wherein the set dose is expelled in full doses, and wherein the dose button can only be reactivated once the full dose has been expelled. Background technique [0003] For decades, automatic injection devices have been known in which a torsion spring drives the expulsion of a liquid medicament. EP338,806 discloses an example of such a torsion spring driven injection device, where the user tensions the torsion spring by rotating a rotatable dose setting element provided at the proximal end of a pen shaped injection device. Indicia showing the dose size be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/315
CPCA61M5/2033A61M5/3157A61M5/31585A61M5/31591A61M5/31595A61M2005/2073A61M2005/2407A61M5/31526A61M5/31543A61M2005/3126
Inventor C·U·焦德森N·C·E·索伦森K·R·塞策尔
Owner NOVO NORDISK AS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com