Locking assembly for preventing dispensing of dose from medication dispensing device

A technology for a drug dispensing device and a locking assembly, which is applied in the direction of drug devices, infusion sets, and other medical devices, and can solve problems such as neglect.

Inactive Publication Date: 2015-08-19
ELI LILLY & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although markings indicating freezing may be used with these devices, such markings may be overlooked in situations where the device may be used by an unaware patient

Method used

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  • Locking assembly for preventing dispensing of dose from medication dispensing device
  • Locking assembly for preventing dispensing of dose from medication dispensing device
  • Locking assembly for preventing dispensing of dose from medication dispensing device

Examples

Experimental program
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Embodiment Construction

[0020] now refer to Figures 1 to 3 Various views of a disposable medicament dispensing device or instrument provided with a first embodiment of the locking assembly of the present invention are shown. The device shown, generally designated at 20 , is generally constructed the same as that shown in US Patent No. 7,517,334, the entire contents of which are incorporated herein by reference.

[0021] The locking assembly of the present invention may advantageously be incorporated into fixed or variable dosing devices of various designs having a drive member which advances the barrel plunger to push from the device drug, but the drive member is susceptible to back-driving when the drug in the device is frozen. The mechanism in this device by which a dose is set or prepared and then delivered by the advancement of the drive member is not relevant to the invention, except in some embodiments of the invention, directly in another embodiment In contrast to engaging the drive member,...

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PUM

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Abstract

A locking assembly for a medication dispensing device including a housing, a drive member, a medication cartridge having a barrel holding medication between a movable plunger and a septum, and a dose delivery mechanism for controlling the advancement of the drive member. The locking assembly, in one form, includes a lock member, biased to move from a first position to a second position, with a first actuating element. The locking assembly also includes a second actuating element disposed on the drive member and cooperatively configured with the first actuating element. If the drive member of the device moves rearward from the shipped position due to a freezing of the medication, the second actuating element engages the first actuating element such that the lock member moves from the first position to the second position to lock the medication dispensing device from further dose dispensing.

Description

technical field [0001] The present invention relates to medicament dispensing devices and in particular to a locking assembly which prevents a medicament dispensing device from delivering a dose if the medicament contents have frozen before the device is used for the first time, said locking assembly being provided on said medicament dispensing device middle. Background technique [0002] Patients suffering from several different diseases must frequently inject themselves with drugs. In order to allow a person to self-administer medication conveniently and precisely, various devices widely known as injection pens or jet pens have been developed. Typically, these pens are fitted with a barrel comprising a piston or plunger and containing a multi-dose quantity of liquid medication. The drive member (extending from within the base of the injection pen and operatively connected to a generally more rearward mechanism of the pen that controls the movement of the drive member) is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/315
CPCA61M5/31571A61M5/31501A61M2205/276A61M5/24A61M5/3155A61M5/31566A61M5/31551A61M5/3158A61M5/5086A61M5/31575A61M5/31555A61M2205/581A61M2205/3368F04C2270/0421
Inventor J.R.阿尔内特
Owner ELI LILLY & CO
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