Method and apparatus for uninterrupted delivery of radiographic dye
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United States of America Patent
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-
Jul 9, 1996
Grant Date -
N/A
app pub date -
Nov 7, 1994
filing date -
Nov 7, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for injecting radiographic dye during angiography are provided. A deformable holding chamber is interposed between a contrast dye bottle and a syringe manifold. A one-way valve and an integral disconnect/flow-stop are connected between the bottle and the holding chamber. A vent is provided in the holding chamber, with a second one-way valve. Squeezing and releasing the deformable chamber fills the chamber from the bottle. The holding chamber contains a floating baffle which acts as a shut off valve by plugging the chamber outlet if the chamber becomes empty. The syringe is used to withdraw dye from the holding chamber. If dye remains in the bottle after performance of the procedure, the disconnect/flow-stop fitting can be disconnected, and the dye can be saved.
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