Stamford Devices Limited

David Sheil

Brendan Hogan

Mark Southern

Seamus Clifford

Daniela Butan

Michael Pomeroy

An aperture plate is formed from a palladium nickel alloy comprising about 89% palladium and about 11% nickel. There is a generally fine substantially equiaxed grain microstructure throughout the thickness of the aperture plate. The average grain width (W) is in the range of from 0.2 &#x3bc;m to 5.0 &#x3bc;m, in some cases from 0.2 &#x3bc;m to 2.0 &#x3bc;m. Because the grain structure is equiaxed (L/W=1) the grain length (L) is the same as the grain width. The improved aperture plate extends the life of nebulizers, eliminates the risk of premature and unpredictable failure of a nebulizer in service, eliminates the risk of product returns from hospitals and patients, and eliminates the possible risk of fragments of the aperture plate breaking free from the nebulizer.

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Rahoon, Ireland

David Sheil