DEVICE FOR TAKING BLOOD OR BLOOD PREPARATION Russian patent published in 2019 - IPC A61B5/154 

FIELD: medicine.

SUBSTANCE: device comprises: test tube (10) extending along longitudinal axis (11) and comprising side wall (12), a closed distal end (13), proximal end (14) opposite distal end (13), and inner cavity (15), communicating with outer space through opening (16) on proximal end (14); piston assembly (50; 250; 350) moved along inner cavity (15) of test tube (10), wherein piston assembly (50; 250; 350) limits space (15a) between piston assembly (50; 250; 350) and distal end (13) of test tube (10); handle assembly (30; 130; 330) comprising gripping portion (32, 132) and end portion (34; 134; 334) and pierceable sealing member (70; 270; 370). Said device (1; 100; 200; 300) is configured to receive a movement position in which handle assembly (30; 130; 230) moves piston assembly (50; 150; 250) to distal end (13) and is not fixed to piston assembly (50; 150; 250) and in which air in space (15a) is forced through piston assembly (50; 150; 250) and/or through space between piston assembly (50; 150; 250) and side wall (12) of test tube (10). Said device (1; 100; 200; 300) is configured to receive an offset position in which end portion (34; 134; 334) of handle assembly (30; 130; 230) is fixed to piston assembly (50; 150; 250) and pulls piston assembly (50; 150; 250) to proximal end (14) and in which piston assembly (50; 150; 250) and pierceable sealing element (70; 270; 370) seal space (15a).

EFFECT: invention refers to medical equipment, namely to devices for blood sampling or blood preparation.

21 cl, 30 dwg