AIRFLOW TESTING APPARATUS AND METHOD FOR AN INHALER
First Claim
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1. Testing apparatus comprising an air pump downstream of measuring equipment which measures a product'"'"'s characteristics:
- an induction port upstream of the measuring equipment; and
an adaptor connected at a first end upstream of the induction port, the adaptor comprising a through-bore extending through the adaptor from the first end to a second end to receive an inhaler, in use, and a bypass channel in communication with the through-bore, whereby the air pump, in use, draws air through the inhaler and through the bypass channel.
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Abstract
Testing apparatus comprising an air pump downstream of measuring equipment which measures the characteristics of an inhaler is provided. An induction port upstream of the measuring equipment has an adaptor connected at a first end. The adaptor comprises a through-bore extending through the adaptor from the first end to a second end to receive an inhaler and a bypass channel in communication with the through-bore. The invention also includes a testing method and the adapter.
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Citations
10 Claims
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1. Testing apparatus comprising an air pump downstream of measuring equipment which measures a product'"'"'s characteristics:
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an induction port upstream of the measuring equipment; and an adaptor connected at a first end upstream of the induction port, the adaptor comprising a through-bore extending through the adaptor from the first end to a second end to receive an inhaler, in use, and a bypass channel in communication with the through-bore, whereby the air pump, in use, draws air through the inhaler and through the bypass channel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of testing an inhaler using testing apparatus having an inlet upstream of an induction port which, in turn, leads into measuring equipment, with an air pump downstream of the measuring equipment to draw air in through the inlet, along the induction port and into the measuring equipment:
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the method comprising fixing a first end of an adaptor to the inlet; the adaptor comprising a through-bore extending through the adaptor from the first end to a second end which receives the inhaler; a bypass channel in communication with the through-bore; attaching an inhaler with its outlet in fluid communication with the second end of the adaptor; and drawing air through the inhaler and bypass channel, into the induction port and subsequently into the testing equipment. - View Dependent Claims (8, 9)
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10. An adaptor for the inlet of air flow testing equipment, the adaptor comprising:
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a sleeve with a through-bore extending through the adaptor from a first end couplable to an inlet of the testing equipment, to a second end having a seal to receive and seal, in use, with an inhaler a bypass channel in communication with the through-bore and a flow adjustment member in the bypass channel, the member being adjustable to vary the flow through the bypass channel, and hence the relative proportion of air that is drawn in at the first end of the adaptor; and the make-up air drawn in through the bypass channel.
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Specification