BLOOD INFUSION AND COLLECTION DEVICES Russian patent published in 2024 - IPC A61B5/154 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for continuous introduction of liquid into a living body during pure blood collection processes. Embodiments include an intravenous device in which a first fluid channel is formed, configured to provide selective movement of intravenous fluid into a living body and removing the biological fluid from said body, and a connector configured to connect the catheter to said first fluid channel and having a concave far end. Second fluid channel is configured to provide a continuous supply of intravenous fluid into the lumen coaxially located inside the catheter. Concave surface is shaped to form a fluid flow path that enables fast and complete removal of the residual biological fluid remaining on the concave far end. Embodiments include a concave surface having the shape of an asymmetric funnel, the top of which is made at the centre of said first fluid channel.

EFFECT: implementation of the purpose.

20 cl, 52 dwg