Multilayer analytical element and method of making, using ultrasonic or laser energy
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United States of America Patent
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Oct 11, 1988
Grant Date -
N/A
app pub date -
Jul 19, 1985
filing date -
Jul 19, 1985
priority date (Note) -
Expired
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Abstract
A method of making a multilayer analytical test element comprises providing layers at least one of which is responsive to detect a ligand in a liquid sample, or to detect the ligand binding capacity of the sample, and at least one other layer that is fusible when subjected to sonic energy, arranging the layers one on top of the other together to form a composite blank of layers, subjecting the composite to ultrasonic or laser energy to cut the composite to the desired dimension of the test element and to simultaneously weld the layers at the edges thereof, said energy softening and fusing the fusible layer to thereby bond the layers together.
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