Pre-metered dry powder inhaler for moisture-sensitive medicaments

A dry powder inhaler, a predetermined amount of technology, used in inhalers, medical containers, drug combinations, etc.
CN1913872BActive Publication Date: 2011-05-25BOEHRINGER INGELHEIM INT GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOEHRINGER INGELHEIM INT GMBH
Publication Date
2011-05-25

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Abstract

The invention is directed to a pre-metered dry powder inhaler provided with a dry powder dose of tiotropium and excipient(s) loaded into a container comprising a dry, high barrier seal, which prevents ingress of moisture so that the fine particle structure of the powder dose is preserved. The dry powder dose has been formed by either volumetric or electric field dose forming methods. The invention is also directed to a dry powder dose of tiotropium loaded into a container as described above. The dry powder inhaler and the dry powder dose of the invention is intended for use in the treatment of asthma and other respiratory disorders.
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Description

field of invention

[0001] The present invention relates to dry powder inhalers (DPIs) that deliver high and stable doses of fine particles. The inhaler uses a highly leak-proof sealed container containing at least one metered dose of a formulation comprising at least one excipient and tiotropium drug.

[0002] Additional advantages and other features of the invention will be set forth in part in the ensuing description, and will be apparent to those of ordinary skill in the art by examination of the following contents, or can be learned by practice of the invention. The advantages of the invention may be realized and attained as particularly pointed out in the appended claims. As will be realized, the invention is capable of other and different embodiments, and its several specific embodiments are capable of modifications in various obvious respects, all without departing from the invention. This description is considered to be illustrative in nature, not restrictive. Back...

Claims

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