Ventricular volume reduction device

Abstract

The invention relates to a ventricular volume reduction device. The device comprises a volume reduction support, the volume reduction support comprises a first support body and a second support body which are coaxially arranged, the first support body comprises a first connecting piece and a plurality of first supporting ribs evenly distributed around the circumference of the first connecting piece, and the first ends of the first supporting ribs are connected with the first connecting piece; the second support body comprises a second connecting piece and a plurality of second supporting ribsevenly distributed around the circumference of the second connecting piece, and the first ends of the second supporting ribs are connected with the second connecting piece; the second ends of the first supporting ribs and the second ends of the second supporting ribs are connected with each other, and anchor thorns are arranged at the connecting positions of the first supporting ribs and the second supporting ribs in an outward extending mode; the parts, close to the first connecting piece, of the first supporting ribs and the parts, close to the second connecting piece, of the second supporting ribs are in a sine shape; and at least one surface of the first support body and the second support body is covered with a flow blocking film. The strength of the volume reduction support can be improved, fatigue damage of the volume reduction support is prevented, and the service life of the volume reduction support is prolonged.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a ventricular volume reduction device. Background technique [0002] Percutaneous Ventricular Reconstruction (PVR) is a new technique for minimally invasive interventional treatment of ventricular aneurysm and heart failure. This technique is mainly retrograde through the catheter, and a ventricular isolation device is implanted in the left ventricle of the patient to isolate the non-functional ventricular region. , reduce left ventricular systolic and diastolic volumes, reduce left ventricular tension, improve left ventricular remodeling and cardiac function; compared with traditional surgical left ventricular reconstruction, percutaneous ventricular reconstruction (PVR) has the advantages of less trauma and lower safety risks advantage, so its application prospect is broad. [0003] The Chinese invention patent application with the publication number CN109009589A discl...

AI Technical Summary

Problems solved by technology

After the release of the ventricular volume reducing device, the anchor thorn penetrates into the muscle of the ventricular wall to fix the ventricular volume reducing device. However, the anchor thorn gradually penetrates into the muscle of the ventricular wall when the ventricular volume reducing device is gradually deployed. The penetration depth is uncontrollable. In the actual operation process, the ventricular volume reduction device is prone to shift or fall off due to poor anchoring, which affects the treatment effect.

In addition, the first bracket and the second bracket are both linear, and their strength is low, and they are easily damaged by fatigue, which affects the service life

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