A dual-lumen deep vein blood filter tube device

Abstract

The invention discloses a double-lumen deep vein blood filter tube device, comprising a connector, a blood suction vessel and an occlusion head. A liquid inlet cham, a liquid outlet chamber and a liquid return cham are arranged in that connecting body, the liquid inlet ends of the liquid inlet chamber and the liquid return cham are arranged in an open manner, the liquid outlet ends of the liquid outlet chamber are arranged in an open manner, and the liquid outlet ends of the liquid return chamber and the liquid inlet ends of the liquid outlet chamber are communicated with the liquid outlet ends of the liquid inlet chamber; One end of the blood suction vessel is connected with the plug, the other end of the blood suction vessel is connected with the connector, and the liquid inlet cavity iscommunicated with the inner cavity of the blood suction vessel; A plurality of groups of liquid inlet units are uniformly distributed in the circumferential direction of the blood suction vessel, each group of liquid inlet units comprises a plurality of liquid inlet holes, and a plurality of liquid inlet holes of each group of liquid inlet units are equally spaced on the blood suction vessel along the axial direction of the blood suction vessel. The invention ensures smooth extraction of blood in human blood vessel by blood filter tube, avoids secondary placement of blood filter tube due to no bleeding, and improves blood filtration efficiency.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a double-cavity deep vein blood filter tube device. Background technique [0002] Hemofiltration is to introduce the patient's arterial blood into a semi-permeable membrane filter with good permeability and the same area as the glomerular filtration membrane. Due to the transmembrane pressure gradient between the blood area and the membrane, when the blood passes through the filter When the plasma is in the blood, except for the formed components such as protein and cells, the water and most of the small and medium molecular substances are filtered out, so as to achieve the therapeutic purpose of removing excess water and solutes retained in the blood. However, during operation, the liquid inlet of the blood filter tube is often easily attached to the inner wall of the blood vessel, resulting in the phenomenon that the blood filter tube cannot be drawn out; at this time, ...

AI Technical Summary

Problems solved by technology

However, during operation, the liquid inlet of the blood filter tube is often easily attached to the inner wall of the blood vessel, resulting in the phenomenon that the blood filter tube cannot be drawn out; at this time, the medical staff has to take out the blood filter tube from the human blood vessel and re- Adjust the position of the hemofiltration tube before inserting it into the blood vessel of the human body, which reduces the efficiency of hemofiltration

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