Auricle clamp conveying system

Abstract

The invention relates to the medical instrument field, and discloses an auricle clamp conveying system comprising a handle casing, a push rod, a connecting tube and a support seat; a channel arranged in the length direction is arranged in the handle casing, and one end of the push rod is arranged in the channel in a slide manner; the support seat is provided with a mounting window used for mounting an auricle clamp; the auricle clamp comprises a first clamp arm and a second clamp arm capable of parallelly opening and closing; the handle casing, the connecting tube and the support seat are connected in sequence and connected through; the first clamp arm or the second clamp arm are fixedly connected with the upper side or lower side of the mounting window through a fixed stay wire; the fixed stay wire penetrates the support seat and the connecting tube in sequence, and is fixedly connected with the handle casing; the second clamp arm or the first clamp arm are movably connected with the lower side or the upper side of the mounting window through a movable stay wire; the movable stay wire penetrates the support seat and the connecting tube in sequence, and is connected with the end portion of the push rod. The auricle clamp conveying system can conveniently and reliably place the auricle clamp from the outer side of the heart to the root of the left auricle in an open-chest or a minimally invasive operation, thus closing the left auricle.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an auricle clip delivery system. Background technique [0002] Atrial fibrillation is one of the most common clinical arrhythmias. The consequences of stroke caused by atrial fibrillation are very serious, with a mortality rate and disability rate of 70%. For patients with valvular atrial fibrillation, 57% of atrial thrombi originated from the left atrial appendage, and for patients with non-valvular atrial fibrillation, 90% of left atrial thrombi originated from the left atrial appendage. Even after restoration of sinus rhythm, left atrial appendage contraction stuns, there is still the possibility of re-thrombosis. [0003] At present, there are three main methods to prevent ischemic stroke in AF clinically. One method is to take anticoagulant drugs, such as warfarin, but the use of warfarin has a certain risk of bleeding, and requires frequent monitoring. There a...

AI Technical Summary

Problems solved by technology

One method is to take anticoagulant drugs, such as warfarin, but the use of warfarin has a certain risk of bleeding, and requires frequent monitoring. There are many contraindications, and clinical application is more difficult; in addition, warfarin can also cause osteoporosis. and soft tissue necrosis

The second method is to directly resect or ligate the atrial appendage during cardiac surgery. The main disadvantage of this method is that the complete closure rate of the left atrial appendage is low. Previous studies have shown that the success rate of complete resection of the left atrial appendage is as high as about 80%.

The third method is to close the left atrial appendage by means of instruments, and percutaneously intervene in intracardiac left atrial appendage closure products, but the operation is complicated, the risk is high, and the safety and effectiveness need to be verified

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