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Inhalation device for powdered drugs

A technology for inhalation devices and powdered medicines, which is applied in the field of inhalation devices for powdered medicines, can solve problems such as high trigger force and delay, and achieve the effect of reducing airflow changes

Active Publication Date: 2014-10-22
ASTRAZENECA AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the point of contact between the catch and the metering lever in the recess may be relatively far from the blocking edge in the shaft, so that when the flapper valve is pivotally moved, there is some delay until the metering lever finally released
In fact, as in the case of the first case, this requires a higher trigger force

Method used

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  • Inhalation device for powdered drugs
  • Inhalation device for powdered drugs
  • Inhalation device for powdered drugs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Figures 1 to 20 The inhaler 1 shown in is an inhaler for powdered medicaments for delivering boluses of powdered medicaments from a container in the form of a powder canister. The powder container 3 defines a reservoir 2 for receiving a bolus of powder / powdered drug. In the described embodiment, the number of doses obtainable from one powder container 3 is typically in the range of 30 to 60 doses.

[0058] from figure 2 It can be seen that the reservoir 2 is hermetically covered by a lid 4 . In the assembled state of the inhaler, the cap is secured to the canister 3a in a non-detachable manner.

[0059] The patient receives the powdered dose by means of a flow of air induced by the user (ie, inhalation induced). The inhaler therefore further comprises an actuating means for manual engagement by the patient in the form of a dose key 5 connected to a delivery mechanism comprising a dose lever 6 and a locking lever 7 . The dose lever 6 acts on a dose slide 8 as a me...

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Abstract

The invention refers to an inhalation device for powdered drugs to be received by a patient by an inhalation-caused air stream, comprising at least one powder reservoir, metering means for repeatedly metering a powder dose from the reservoir, a transportation mechanism for moving said metering means from a filling position for receiving a powder dose into an emptying position for releasing said powder dose into a powder channel, at least one activating device for manual operation by the patient being operatively connected to said transportation mechanism such that upon operation a single powder dose is being metered, said activating device comprising a dosage key (5) acting on said transportation mechanism when actuated by the patient. According to the invention, said transportation mechanism furthermore comprises a dosage lever (6) acting on said metering means, said dosage lever (6) being locked in the inhalation position of said metering means after said dosage key (5) has been property pressed down by the patient. The dosage lever (6) in the inhalation position engages a trigger member and is releasable by actuation of the trigger member. The trigger member comprises at least one cam surface and the dosage lever (6) engages the cam surface tangentially in said locked inhalation position.

Description

technical field [0001] The present invention relates to an inhalation device for powdered medicaments which is received by the patient by an air flow induced by inhalation, said inhalation device comprising at least one powder reservoir; The reservoir sets a powder dose; the delivery mechanism is used to move the metering assembly from the filling position for receiving the powder dose to the emptying position for releasing the powder dose into the powder channel; and at least one actuating device , for manual operation by the patient, the actuating device is operatively connected to the delivery mechanism so that a single dose of powder is metered out in operation, the actuating device includes a dose key which, when pressed by the patient, Act on the conveying mechanism. Background technique [0002] A powder inhaler of the kind mentioned above is disclosed, for example, in EP 1 616 592 B9. [0003] In the field of treatment of bronchial diseases and other diseases in wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00
CPCA61M15/0095A61M15/0026A61M2206/16A61M2202/064A61M15/0073A61M2205/584A61M15/0065A61M2205/583A61M15/0091A61M15/0093A61M15/0081A61M15/0071
Inventor M·赫德G·卢丹内克I·梅特J·施密特
Owner ASTRAZENECA AB
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