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Pen-type drug injection device with controller and time lock-out mechanism its drive

A driving mechanism and a controller technology, applied in the fields of pen-type injectors and drug delivery devices, can solve the problems of difficult control by the attending doctor and the like

Active Publication Date: 2014-10-08
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adherence to the prescription schedule is sometimes suboptimal for patients who have become accustomed to the drug for a long time, or who suffer from chronic disease side effects and may be physically or mentally impaired
Since a large number of various existing, for example, disposable drug delivery devices are fully mechanically implemented, it is also difficult for the attending physician to control whether the patient strictly adheres to a given prescription schedule

Method used

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  • Pen-type drug injection device with controller and time lock-out mechanism its drive
  • Pen-type drug injection device with controller and time lock-out mechanism its drive
  • Pen-type drug injection device with controller and time lock-out mechanism its drive

Examples

Experimental program
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Embodiment Construction

[0134] Such as figure 1 and figure 2 The illustrated pen injector 10 comprises a proximal body or housing part 12, and a distally located cartridge holder 16 for receiving a cartridge 22 at least partially filled with a medicament to be injected. The proximal housing part 12 is used to accommodate the drive mechanism 20, which is not explicitly shown in figure 1 and figure 2 middle. The drive mechanism 20 includes at least a piston rod 25 to operably engage with a piston of the cartridge 22 .

[0135] The drive mechanism 20 further comprises a dose dial 18 and an injection button 17 through which a dose of medicament can be set and dispensed. A dose dial 18 and an injection button 17 are located at the proximal end 15 of the drug delivery device 10 .

[0136] The drive mechanism 20 is preferably fully mechanically realized. For example, when the dose dial 18 is rotated clockwise or counterclockwise relative to the housing 12, the dose button 17, together with the dose ...

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PUM

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Abstract

The present invention relates to a drive mechanism for a drug delivery device, comprising: a piston rod (25) to operably engage with a piston (24) of a cartridge (22) to displace the piston (24) in a distal direction (2) during a dose dispensing action, at least one actuation member (17, 18) mechanically coupled with the piston rod (25) to induce a distally directed displacement of the piston rod (25) when actuated by a user, a control (36) to ascertain at least one predefined condition of use, and at least one interlock member (30; 50; 90) coupled with the control (36) to mechanically obstruct displacement of the piston rod (25) if the condition of use is not fulfilled.

Description

technical field [0001] The present invention relates to the field of drug delivery devices and in particular to the field of pen injectors suitable for setting and injecting doses of medicaments by injection, preferably in a self-administration environment. Background technique [0002] Chronic diseases require the administration of drugs or agents according to a predetermined schedule in order to keep the concentration levels of pharmaceutically active substances within given boundaries. Many medicaments require administration by injection. Therefore, when a patient administers a medicament in self-medication, a syringe or a syringe-like drug delivery device is typically used. Such a device should be universally applicable and should be operable even by persons without formal medical training. [0003] Furthermore, such devices, such as pen-type injectors, should provide for accurate, precise and reliable dose setting of medicaments and subsequent dispensing of correspond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24G06F19/00A61M5/315A61M5/20G16H20/17
CPCA61M2205/3331A61M2205/18A61M2205/27A61M2205/276A61M2005/208A61M2205/3569A61M2205/3592A61M5/31541A61M2205/581A61M2205/582A61M2205/3584A61M5/24G06F19/3406A61M2205/50A61M2205/3324A61M2205/6054A61M2205/583A61M2205/13A61M2205/52G06F19/3468G16Z99/00G16H40/63A61M5/31501G16H20/17
Inventor H.基茨曼J.格罗希克H.朱恩克J-P.斯潘格勒M.沙夫C.德特M.希拉克O.泽凯
Owner SANOFI AVENTIS DEUT GMBH
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