| 摘要 |
<p>The invention relates to a device for measuring the characteristics of a liquid, comprising a valve having a key which can move in rotation in a recess provided in a block forming a plug, into which recess the orifices of fluid-circulation lines open. According to the invention, the key has a base (61) which is provided at its periphery with orifices distributed at a specified angular module, some of which orifices are connected by ducts, the orifices of the recess (60) being distributed regularly at this angular module, and also has a body (62) provided with a chamber (63) in which a double piston (64) is mounted slideably, a duct (620) connecting one of the orifices of the base to the chamber so that a plurality of lines can be brought into communication with one another, and with the said chamber, and separated from one another, by rotation of the key. The invention is intended for analysis laboratories, for example for carrying out measurements on blood samples. <IMAGE></p> |
