Coronary artery intervention-based end hole guide wire

Abstract

The invention discloses a coronary artery intervention-based end hole guide wire, and relates to medical equipment. In the percutaneous coronary intervention (PCI for short) and in the process of using a double guide wire track technology (BW for short), in order to make a second guide wire move forward smoothly without the assistance of a micro guide catheter, and avoid the winding operation of two guide wires and prevent a bracket from separating from a carrier, an end hole guide wire is utilized as the second guide wire. The end hole guide wire consists of a guide wire rod and a sleeve ring, wherein the sleeve ring is a circular ring; the cross section of the sleeve ring is a circular surface; the center line of the circular ring is parallel to the center line of the guide wire rod; and the sleeve ring is fixed to one side of the end part of the guide wire rod in a welding manner. According to the conventional operation of the PCI, a first guide wire is inserted into a blood vessel and penetrates through a narrow blood vessel infection focus to the far end of the blood vessel, and the position, at the guide catheter outside the body of a patient, of the sleeve ring of the end hole guide catheter is inserted by the first guide wire.

Description

technical field [0001] The invention relates to a medical device, in particular to a guide wire with a guide hole at the end used in percutaneous coronary intervention. Background technique [0002] The role of the guide wire in percutaneous coronary intervention (referred to as PCI) is to pass the stenosis or occlusion lesion to the distal end of the blood vessel, with the purpose of delivering the balloon or stent to the target lesion to provide it with a "track". For complex PCI, double guidewire tracks (buddywire for short) are commonly used. BW surgery is to follow the placed first guidewire, and then send the second guidewire along with the first guidewire. . Compared with a single guide wire, BW can improve the support and stability of the guide catheter, straighten the tortuous or angled coronary artery, and play the role of a slide rail, helping the balloon and stent delivery system pass through the calcified angle smoothly Lesions, reaching target lesions. BW te...

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Problems solved by technology

Once the guide wire comes out of the stent,

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