Mental and room shunting device

Abstract

The invention relates to the technical field of medical instruments, in particular to a ventricular shunt device which comprises a conduction part, a first positioning body and a second positioning body, the first positioning body and the second positioning body are arranged on the two sides of the conduction part respectively, and the conduction part, the first positioning body and the second positioning body are formed by integrally weaving single weaving wires. In the embodiment of the utility model, by adopting the interaventricular shunting device, through an integrated weaving mode of a single weaving wire, treatment on bulk wire heads is not needed, no redundant structure protrudes into the left atrium and the right atrium after installation is completed, thrombus is not easy to generate, the structure is simple, the size is smaller during contraction, and the device is convenient to use. And the damage to the admission blood vessel is smaller in the implanting process.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an atrial shunt device. Background technique [0002] Heart failure, referred to as heart failure, refers to the failure of the systolic and / or diastolic function of the heart to fully discharge the venous blood back to the heart, resulting in blood stasis in the venous system and insufficient blood perfusion in the arterial system, which in turn causes the heart Circulatory Disorder Syndrome. Heart failure is a serious disease with high incidence and mortality. According to the location of heart failure, it can be divided into left heart failure, right heart failure and total heart failure. According to the clinical manifestations of heart failure, it can also be divided into systolic heart failure. Heart failure and diastolic heart failure, of which diastolic heart failure (diastolic heart failure, DHF) accounts for about half of all heart failure patients. There are ...

AI Technical Summary

Problems solved by technology

[0004] In the treatment of heart failure, there are defects in various existing methods, such as optimizing drug treatment can not fundamentally remove the cause, there is still the possibility of recurrent attacks; Cardiac resynchronization therapy (CRT) is ineffective for at least 20% of heart failure patients; left ventricular assist device (LVAD) surgery requires extracorporeal circulation, which not only has a high incidence of major trauma and complications, but is also expensive and difficult to obtain, and it is not available in China Conditions for surgery; heart transplantation can solve the problem at its root, but donor sources are very limited and expensive

[0005] Publication No.: CN113558820A patent discloses a shunt device, the shunt device is connected as a shunt channel by two discs and the waist connecting the middle of the two discs, two There are multiple independent petal-like structures on the disc that fit and anchor with the atrium wall. The anchoring effect is not good, and it cannot be well guaranteed that the shunt can always be firmly anchored at the position of the atrial wall stoma; the patent of publication number: CN110536657A discloses a shunt for redistributing atrial blood volume, the shunt The hourglass-shaped shunt is adopted, but the hourglass-shaped shunt is easily displaced under the washing of the blood flow, changing the installation angle, and forming an artificially small angle with the atrial septum, and easily forming eddy currents in the angled space And thrombus, the polymer ePTFE membrane is attached to the outer surface of the shunt device, which may lead to complications such as thrombus and hemolysis

[0006]Because before implanting the shunt device, it is necessary to carry out stoma treatment on the implanted part, and then implant the shunt device, the existing shunt devices are basically cutting-covered The membrane structure is made of multi-strand filaments, and its structure is often complex. After implantation, the structure often protrudes into the left and right atrium, which increases the risk of subsequent thrombosis, and it still has a relatively high risk in the contraction state. Large cross-sectional area, so it often requires a larger diameter of the sheath of the conveyor, which is not adaptable to some cases with more tortuous approaches and more complicated lesion structures

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