| 摘要 |
PCT No. PCT/AU95/00540 Sec. 371 Date Feb. 26, 1997 Sec. 102(e) Date Feb. 26, 1997 PCT Filed Aug. 25, 1995 PCT Pub. No. WO96/06657 PCT Pub. Date Mar. 7, 1996A nasal device for sampling inhaled particulate matter in the nose of a person to allow identification of aeroallergens in the inhaled matter or to prevent disease states mediated by such aeroallergens. The nasal device has a body adapted to fit within a person's nostril and to resiliently engage its inside wall. A passage extends through the body to allow air to be inhaled by the person through the nasal device. The passage has a non-linear path and includes a sample collection zone placed in the passage so that, during inhalation, air is drawn firstly towards and then secondly around the collection zone so that a sample of any particulate matter in the inhaled air will be caused to impact against the collection zone due to the non-linearity of the passage and to be retained on the collection zone, the sample collection zone being removable from the nasal device to allow analysis of the matter impacted thereon.
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