Perfected device for the practice of clinical analysis. (Machine-translation by Google Translate, not legally binding)

摘要

Improved device for the practice of clinical analysis, comprising a hollow-elastic plunger plug and provided with a bore closed by a pierceable partition and which is slidable by a container as a test tube, containing the liquid under analysis, by the action of a tubular element coupled to said plug-plunger to effect the transfer of the liquid from the container to the tubular element, acting simultaneously as a plug and as a piston, characterized in that the plunger-plug has a sleeve-like configuration provided with annular ribs in its periphery and whose bore comprising respective end conical portions joined by a cylindrical portion of greater diameter, the part of greater diameter being delimited by two projections that define an intermediate cylindrical housing, between which housing and the cylindrical portion of smaller diameter incorporates the partition perforable; because the coupling end of the tubular element to the plug-plunger has a configuration in correspondence with that of the bore being provided with separate annular recesses respectively affecting the end portion in a uniform manner and a separate strip in the form of a bevel, constituting the area between both recesses, which is of the same thickness as the rest of the element, an annular shoulder that engages in the intermediate housing of the cap, while the end portion pierces the septum and is housed in the cylindrical portion of smaller diameter and the strip in the bevel coincides with the other conical portion which ensures a perfect coupling during the reciprocating displacement of the plunger stopper because a tubular cap defining an end fitting for coupling to the free end of the tubular element and a tubular element is attached to the free end of the tubular element. Reservoir for the containment of the excess liquid determined from the tubular element r, effecting the container of the liquid with respect to the free end of said element for carrying out the corresponding analysis; and in that the container has at its bottom a projection of conical container complementary to the corresponding extreme conical portion of the plug-plunger for the maximum use of the quantity of liquid in question. (Machine-translation by Google Translate, not legally binding)