| 摘要 |
<p>The present invention provides:
a drug dispensing device for repetitive dispensing on inhalation of a drug released from a pressurised drug source with a can body and a delivery stem, the dispenser comprising:
�� a hollow body having:
�� a wall enclosing a breath passage within the hollow body,
�� an ambient opening to the breath passage,
�� a patient breathing opening to the breath passage,
�� a can receptor attached to the hollow body for accommodating the can of the pressurised drug source,
�� a junction member attached to the hollow body for connection with the dispensing stem of the pressurised drug source and leading delivered drug from the dispensing stem,
�� a drug disperser for dispersing the delivered drug towards the patient breathing opening ,
�� a drug duct from the junction member to the drug disperser,
�� a breath detector arranged in the breath passage to be acted on by breath passing therethrough, and
�� dose release means operatively connected to the breath detector,
the dose release means being so arranged that:
�� on inhalation, with the breath detection member detecting such, a dose is released into the drug duct and dispersed from the drug disperser in the patient breathing opening;
the arrangement permitting a small dose of the drug to be repetitively released on each breath by the patient.</p> |
