| 摘要 |
A device 100 for dosing and pressure adjusting of a radiopaque agent, and, in particular, of carbon dioxide, while performing angiography, is supplied at a predefined pressure, slightly higher with respect to the environment pressure, from a source 1. The device 100 includes a first dispenser 10 for withdrawing measured amounts of carbon dioxide from the source 1. A first reservoir 15 is connected to the first dispenser by a first flow diverter 5, and contains a predefined amount of carbon dioxide to be supplied to an injection catheter 50. The device 100 includes also a second reservoir 25, the first reservoir 15 and second reservoir 25 have a common surface 20, soft or mobile, for balancing the gas pressure in the reservoirs. An output pipe 16 sets the first reservoir 15 and the injection catheter 50 in fluid communication.
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