Assay device for evaluating entrainable substances
First Claim
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1. Diagnostic testing apparatus for evaluating dust entrained in an air flow, comprising a housing for collection and testing of entrainable substances, the housing having:
- an inlet;
an outlet;
a filter disposed in a flow path defined by the housing between the inlet and the outlet, the filter being configured to capture dust substances entrained in air flowing from the inlet to the outlet; and
a reservoir located out of the flow path for storing fluid for use in evaluating dust substances captured on the filter, the reservoir being configured to allow stored fluid to be released from the reservoir onto the filter when evaluating dust substances captured thereon;
wherein at least one of the inlet and the outlet comprises a passageway which projects inwardly into the housing, defining a nozzle which is spaced from adjacent walls of the housing.
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Abstract
Diagnostic testing apparatus for evaluating entrainable substances (e.g. for determining allergen activity in house dust), comprising a housing for collection and testing of entrainable substances, the housing having: an inlet; an outlet; a filter disposed between the inlet and the outlet which is configured to capture substances entrained in air flowing from the inlet to the outlet; a reservoir for storing fluid for use in evaluating substances captured on the filter; and means for releasing stored fluid from the reservoir onto the filter.
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Citations
23 Claims
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1. Diagnostic testing apparatus for evaluating dust entrained in an air flow, comprising a housing for collection and testing of entrainable substances, the housing having:
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an inlet; an outlet; a filter disposed in a flow path defined by the housing between the inlet and the outlet, the filter being configured to capture dust substances entrained in air flowing from the inlet to the outlet; and a reservoir located out of the flow path for storing fluid for use in evaluating dust substances captured on the filter, the reservoir being configured to allow stored fluid to be released from the reservoir onto the filter when evaluating dust substances captured thereon;
wherein at least one of the inlet and the outlet comprises a passageway which projects inwardly into the housing, defining a nozzle which is spaced from adjacent walls of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Diagnostic testing apparatus for evaluating dust entrained in an air flow, comprising:
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a housing for collection and testing of entrainable substances, the housing having; an inlet; an outlet; a filter disposed in a flow path defined by the housing between the inlet and the outlet, the filter being configured to capture dust substances entrained in air flowing from the inlet to the outlet; and a reservoir located out of the flow path for storing fluid for use in evaluating dust substances captured on the filter, the reservoir being configured to allow stored fluid to be released from the reservoir onto the filter when evaluating dust substances captured thereon; and a guide defining an air flow path and including; a first port through which air flows into the guide; a second port coupled to the inlet of the housing and communicating with the first port to enable air to flow into the inlet; a third port coupled to the outlet of the housing to enable air to flow out of the outlet; and a fourth port for connection to a suction device and communicating with the third port. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification