Atrial septal defect occluder for heart

Abstract

The invention relates to the technical field of medical instruments and aims at providing an atrial septal defect occluder for a heart. The atrial septal defect occluder for the heart comprises a convergent ring, wherein a first occluder body is arranged at the top of the convergent ring; a second occluder body is arranged at the bottom of the convergent ring; a traction head is arranged on an outer wall at the top of the first occluder body; a traction wire is arranged at one end of the traction head; a connection hole is formed in the outer wall at the top of the second occluder body; a first sealing ring is arranged in the connection hole; air bags which are distributed at equal intervals are arranged in the convergent ring; and an air guide pipe is arranged on the outer walls at the bottoms of the air bags. The atrial septal defect occluder has the beneficial effects that a first retainer ring and a second retainer ring can be well clamped, so as to well fix the position of the airguide pipe and prevent sliding of the position of the air guide pipe; a rubber material adopted by the first retainer ring and the second retainer ring can well ensure the softness of the contact part of the air guide pipe and a circular ring.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a heart atrial septal defect closer. Background technique [0002] Atrial septal defect refers to the abnormal occurrence, absorption and fusion of the atrial septum during embryonic development, resulting in a residual patent defect between the left and right atrium. This disease accounts for about 10% of all congenital heart diseases and 20-30% of adult congenital heart diseases. Since the pressure of the left atrium is higher than that of the right atrium, blood from the left atrium will enter the right atrium through the atrial septal defect, resulting in increased burden on the right heart system, causing right ventricular hypertrophy, increased pulmonary circulation blood volume, and eventually may lead to pulmonary hypertension and arrhythmia and diseases such as heart failure. [0003] At present, for the treatment of atrial septal defect, minimally invasive interventiona...

AI Technical Summary

Problems solved by technology

[0003] At present, for the treatment of atrial septal defect, minimally invasive interventional treatment methods are mostly used. It inserts a special catheter and its device from the peripheral blood vessel to the site to be treated, and releases the device to achieve treatment. The heart in the prior art The atrial septal defect occluder cannot be adjusted well according to the area of ​​the patient's septal defect or the wall thickness of the heart, resulting in poor adjustment ability of the occluder and poor closing effect. Friction often leads to adverse reactions in patients

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