VALVE ARRANGEMENT FOR MEDICAL DEVICE
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Accused Products
Abstract
The invention faces the technical problem of reducing the uncertainty over exact doses ejected from a medical device and at the same time providing a homogeneous, but controlled mixture of at least two fluids while a simple production should be maintained. A medical device comprising a first valve, a second valve, a first pre-valve ullage, a second pre-valve ullage, a post-valve ullage with a first end and a second end and a needle is presented. The first pre-valve ullage is connected to the post-valve ullage by the first valve and the second pre-valve ullage is connected to the post-valve ullage by the second valve. A first fluid is guidable from the first pre-valve ullage to the post-valve ullage and a second fluid is guidable from the second pre-valve ullage to the post-valve ullage.
24 Citations
24 Claims
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1-12. -12. (canceled)
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13. Medical device comprising:
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a first valve, a second valve, a first pre-valve ullage, a second pre-valve ullage, a post-valve ullage with a first end and a second end, and a needle, wherein said first pre-valve ullage is connected to said post-valve ullage by said first valve, wherein said second pre-valve ullage is connected to said post-valve ullage by said second valve, wherein a first fluid is guidable from the first pre-valve ullage to the post-valve ullage, wherein a second fluid (102) is guidable from the second pre-valve ullage to the post-valve ullage, wherein a first end of said needle is inserted into said post-valve ullage and wherein said post-valve ullage is designed such that there is a flow inversion between said post-valve ullage and said needle. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification