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Medical delivery device with axially expandable drive ribbon

A technology for delivering devices and driving belts, which can be applied to other medical devices, drug devices, infusion sets, etc., and can solve problems such as inconvenient transportation of devices.

Active Publication Date: 2020-07-17
ELI LILLY & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While conventional injection pens and similar devices are small enough to be portable, the length of such devices often makes transporting the device inconvenient

Method used

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  • Medical delivery device with axially expandable drive ribbon
  • Medical delivery device with axially expandable drive ribbon
  • Medical delivery device with axially expandable drive ribbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0227] An example of a drug delivery device is provided. One of the advantages may be that such a delivery device may provide a configuration with a relatively short length and a compact configuration. In some embodiments, the device is a disposable device, such as an auto-injector, having a syringe pre-filled with a drug, such as, for example, insulin or other types of medicaments used to treat diabetes. In some embodiments, the device includes a disposable syringe cartridge removably coupled to the drive housing such that the patient can replace the spent cartridge with a new and / or different drug Another cartridge. The drive housing may include electronics for sensing, indicating, displaying and / or communicating on-board and / or off-board steps in drug delivery.

[0228] The illustrated device utilizes an axially expandable drive belt as part of the drive assembly for dispensing the drug. as reference Figure 1 to Figure 3 It can be seen that the drive belt of the exempl...

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PUM

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Abstract

A medication delivery device usable with a medication container wherein advancement of a piston within the container expels medication. The device includes a housing and a drive assembly. The drive assembly includes a drive ribbon having distal and proximal edge sections. The drive ribbon has a retracted configuration defining a spiral and an extended configuration defining a helix. The drive ribbon is movable from the retracted configuration to the extended configuration with such movement defining a drive axis and advancing the piston. In some embodiments, the drive ribbon may not rotate asit is advanced while in other embodiments, the ribbon does rotate. The disclosed drive assemblies include manually driven assemblies, spring driven assemblies and motor driven assemblies. The containers may be replaceable to allow for reuse of the device. In some embodiments, replaceable cartridges which includes both a medication container and a drive ribbon are employed.

Description

technical field [0001] The present disclosure relates to medical delivery devices, such as injection devices. Background technique [0002] Conventional injection devices are often used to inject drugs into patients. For example, diabetics often use injection pens that utilize disposable cartridges that contain insulin. Such pens generally include an elongated rod that acts on a piston within a cartridge. When the rod advances the piston, the drug is dispensed through the needle into the patient. [0003] Throughout the injection process, including when the rod has reached the limit of forward advancement into the cartridge, the rod must protrude outwardly from the cartridge to engage the drive mechanism within the pen. When the rod has been fully retracted, it must also be accommodated within the pen so that the rod can be inserted into a new cartridge filled with drug. As a result, conventional injection pens are generally elongated and thin, wherein the length of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315A61M5/24
CPCA61M5/31581A61M5/178A61M5/24A61M5/31511A61M5/31551A61M2005/31518A61M2205/502A61M2205/52A61M2205/6081A61M5/31576A61M2005/31588A61M2005/3125A61M5/31585A61M2205/3379A61M5/31501
Inventor J.A.贾德森T.L.莫尔顿R.W.珀金斯
Owner ELI LILLY & CO
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