A kind of peripheral arterial catheterization device with two-way perfusion

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 invention relates to the technical field of medical devices, in particular to a peripheral artery intubation device capable of providing bidirectional perfusion, large cross-sectional area of ​​effective perfusion blood flow, small blood flow resistance, and simple and fast installation. Background technique [0002] Insertion of arterial perfusion catheters in the aorta or peripheral arteries for cardiopulmonary bypass is required for most open-heart and aortic procedures. At present, the arterial catheters used clinically are plastic tubes of different diameters or plastic tubes reinforced with spring steel wires in the wall. For larger diameter aortas, these arterial cannulas are usually adequate for the flow requirements of the cardiopulmonary bypass. However, with the rapid increase in the number of minimally invasive cardiac surgery and aortic surgery, there are more and more cases where peripheral artery cannulation such as femoral artery, ...

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

Images