| 摘要 |
The invention concerns a device for injecting liquid comprising a connection piece on which is located at least a first liquid occlusion system (7). The invention is characterised in that a regulating system (4) i s located upstream of the first occlusion system, the two systems defining an intermediate segment in which the pressure, in the absence of injection, is higher than the pressure prevailing downstream of the first occlusion system for directing downstream any leak at the first occlusion system. The invention is applicable to a pump used for injecting contrast liquid for medical imaging.
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