Guide wire auxiliary device for bifurcation lesion and medical instrument with guide wire auxiliary device

Abstract

The invention discloses a guide wire auxiliary device for bifurcation lesion and a medical instrument with the guide wire auxiliary device. The guide wire auxiliary device comprises a device main body and a push rod, the device main body comprises a main guide wire guide portion and a branch guide wire clamping portion, and the guide wire auxiliary device enters a main blood vessel through a main stent center cavity with a main guide wire as a guide and releases a branch guide wire. The guide wire auxiliary device and the medical instrument with the same have the following advantages that the branch guide wire can be safely and rapidly positioned to a branch opening; the risk that the branch guide wire and the main guide wire are wound is effectively avoided; the risk that the branch guide wire perforates the blood vessel wall in the conveying process is avoided; the risk that the fine branch guide wire enters a gap between the outer side of the main stent and the blood vessel wall is avoided; end bouncing of the branch guide wire is eliminated through arrangement of an accommodating cavity; and the passing performance of the branch guide wire through the stent center cavity path is guaranteed.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a guide wire auxiliary device for treating bifurcation lesions in a biological body and a medical instrument with the same. Background technique [0002] There are a large number of branch pipelines in the body, especially in the blood vessels, respiratory tract, digestive tract, ear canal, nasal cavity and other lumens in the human body. high incidence area. Interventional therapy using wire-mediated stents, balloons, and drug release is one of the rapidly developing treatments. [0003] Coronary artery bifurcation lesions account for about 20-30% of the interventional treatment of coronary heart disease. It is a common clinical problem and one of the most challenging lesion types in the field of coronary interventional treatment. The treatment of coronary artery bifurcation lesions is difficult, time-consuming, requires high technical skills of the surgeon, and has a high in...

AI Technical Summary

Problems solved by technology

Studies have shown that the use of POT (proximal stent optimization technology)-side branch expansion-rePOT technology in stent surgery for bifurcation lesions can effectively shorten the operation time, intraoperative exposure time and reduce the amount of contrast agent. Therefore, in recent years, single stent During surgery, POT (proximal stent optimization technique)-side branch expansion-rePOT has gradually become a routine procedure (such as Figure 12 shown), and the premise of side branch expansion requires a rewire guide wire. Under the current conditions, this step has extremely high requirements on the operator's technical level and equipment, which is time-consuming and inefficient. It is difficult to ensure that the branch guide wire can The branch lesion can be successfully entered through the correct path, and it is easy to cause the branch guide wire to be entangled with the main branch guide wire. If the branch guide wire enters the branch vessel through the outside of the main branch stent, it will bring disastrous consequences, resulting in surgical failure and endangering the patient. life

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