Superior vena cava cannula dilation guide wire

Abstract

The invention discloses a superior vena cava cannula dilation guide wire, which comprises an L-shaped superior vena cava cannula, wherein an opening is formed in one end of the superior vena cava cannula; a guide wire body is arranged in the superior vena cava cannula; a dilation inflated balloon is arranged at the front end of the guide wire body; and the dilation inflated balloon is connected to a connecting tube. The dilation guide wire provided by the invention has the advantages of being simple in structure and skillful in design; moreover, the opening is blocked as the dilation inflated balloon, which gets inflated, is expanded; the guide wire body takes an effect of guiding; the dilation inflated balloon, which is provided with a conical head, can facilitate deep extension, so that bleeding and injury are relieved; aspirating is implemented and the guide wire body is withdrawn as the cannula is successfully implanted; and the dilation guide wire has the advantages of being convenient to operate and the like.

Description

technical field [0001] The invention relates to a superior vena cava intubation expansion guide wire, which belongs to the technical field of medical supplies. Background technique [0002] The superior vena cava is located in the right anterior part of the superior mediastinum, synthesized by the left and right brachiocephalic veins behind the first sternocostal junction, descends behind the front end of the first to second intercostal spaces, passes through the pericardium to the height of the third sternocostal joint, and injects into the right atrium , about 7cm long. This vein has the ascending aorta and aortic arch on the left, the right septal nerve, pericardial septal vessels, and mediastinal pleura on the right, the pleura and lungs anteriorly, and the trachea, right vagus nerve, and azygos vein posteriorly, the latter entering above the root of the right lung The superior vena cava, with the right lung root posteriorly and inferiorly. The brachiocephalic vein joi...

AI Technical Summary

Problems solved by technology

[0003] At present, during heart surgery, the superior vena cava cannulation is too deep, beyond the confluence of the internal jugular vein or the innominate vein, which will affect the venous return of the left upper limb and brain, which can cause bleeding on the contralateral head and face, and the superior vena cava cannulation Exposure is difficult, so the existing superior vena cava cannulation device is still not perfect

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