VORRICHTUNG ZUR ENTNAHME VON KÖRPERFLÜSSIGKEITEN.

摘要

PCT No. PCT/AT91/00066 Sec. 371 Date Jan. 24, 1992 Sec. 102(e) Date Jan. 24, 1992 PCT Filed May 21, 1991 PCT Pub. No. WO91/18551 PCT Pub. Date Dec. 12, 1991.A device for the sampling of body fluids using a hollow needle (6), is provided with a storage system (3) with several separate sample containers (4) placed on a movable carrier (9). The containers (4) which are sealed by puncturable membranes (5) so as to be gas-tight, will receive collected fractions of the body fluid at given intervals, a device (7) connected to a control unit (2) being provided, by which the hollow needle (6) is positioned over each sample container (4) in turn and is inserted through the membrane (5) into the sample container. The sampling device 1 is configured as a two-channel cannula (18), one (19) of whose channels is connected via a first connecting tube (25) to the hollow needle (6) used for insertion into the sample containers (4), while its other channel (20) is connected via a second connecting tube (26) to a pump (8'; 21) operated by the control unit (2). In their unused state the individual sample containers (4) are filled within an amount of gas or gas mixture whose volume at atmospheric pressure is smaller than that of the body fluid to be received.