Valve arrangement for medical device
作者： Steven Wimpenny , James Alexander Davies , David Moore , Ilona Eggert , Simon Lewis Bilton
DOI:
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摘要: The invention faces the technical problem of reducing uncertainty over exact doses ejected from a medical device and at same time providing homogeneous, but controlled mixture least two fluids while simple production should be maintained. is solved by comprising first valve (262, 308, 508), second (268, 310, 510), pre-valve ullage (264, 304, 504), (266, 306, 506), post-valve ( 280, 312, 512) with end 281, 316, 516) 282, 318, 518) needle (406). connected to post- valve. A fluid (92) guidable (102) ullage. (407) said inserted into designed such that there flow inversion between needle.
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