Two-way instillation peripheral arterial intubation device

Abstract

The invention relates to a two-way instillation peripheral arterial intubation device. The device solves the problem that peripheral arterial intubation causes unsmooth blood discharge. The device comprises an outer pipe and an inner pipe rotationally arranged in the outer pipe in a telescopic mode, a front port of the outer pipe is provided with a half piece outer pipe fixing edge, a front port of the inner pipe is provided with a corresponding half piece inner pipe fixing edge, after the inner pipe is rotated, the inner pipe fixing edge and the outer pipe fixing edge are spliced to form an integrated inner fixing edge, the outer pipe is sleeved with a sleeve, and a front port of the sleeve is provided with an outer fixing edge matched with the inner fixing edge in a pressed mode. The intubation device has the advantages that the intubation device is clamped on an arterial wall through the inner fixing edge and the outer fixing edge, so that a cannula and an artery form a three-way structure, the problem that after the cannula is inserted into the artery, blood circulation in the artery is hindered is avoided, the two-way instillation effect is achieved, the instillation blood flow section area is large, and blood flow resistance is little. The fixing edges can be adjusted, the cannula can be inserted into the peripheral artery conveniently, and an insertion wound is also reduced.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to a peripheral arterial intubation device capable of providing bidirectional perfusion, large effective perfusion blood flow cross-sectional area, low blood flow resistance, and simple and rapid installation. Background technique [0002] Inserting an arterial perfusion tube into the aorta or surrounding arteries for extracorporeal circulation is a necessary operation for most open heart surgery and aortic surgery. At present, the arterial cannulas used in clinical practice are all plastic tubes of different diameters or plastic tubes reinforced with spring steel wires in the wall. For aorta with larger diameter, these arterial cannulas can usually meet the flow requirements of extracorporeal circulation. However, with the rapid increase in the number of minimally invasive cardiac surgery and aortic surgery, more and more cases of peripheral arteries such as femoral art...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problem that the peripheral arterial catheterization in the prior art cannot achieve bidirectional perfusion and increases the cross-sectional area of ​​the effective perfusion blood flow, and provides a peripheral arterial catheterization device for bidirectional perfusion without blocking blood vessels and reducing wounds

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