Ventricular septal defect treatment instrument

By designing a treatment device for ventricular septal defects, utilizing a delivery sheath and push rod to release the patch, combined with left ventricular pressure differential and suturing techniques, the problem of difficulty in inserting occluders into small ventricular septal defects in existing technologies has been solved, achieving efficient repair of multiple ventricular septal defects and reducing residual shunts.

CN224269353UActive Publication Date: 2026-05-26BEIJING SHENDI MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING SHENDI MEDICAL TECH CO LTD
Filing Date
2025-02-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing techniques for repairing ventricular septal defects, especially multiple ventricular septal defects, present problems such as difficulty in placing the occluder into the small ventricular septal defect, leading to surgical failure and residual shunt, particularly when directly suturing the right ventricular side or using existing occlusion devices.

Method used

A device for treating ventricular septal defects is provided, including a patch, a delivery sheath, a push rod, and a limiting device. The defect location is detected by the head of the delivery sheath, the patch is released and fixed to the left ventricular side by the push rod, and the patch is secured by sutures or fixation claws. The small ventricular septal defect is repaired by utilizing the pressure difference in the left ventricle.

Benefits of technology

It enables accurate repair of multiple ventricular septal defects, reduces residual shunts, is suitable for minimally invasive surgery, is especially suitable for repairing smaller defects, and improves the success rate of surgery.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to a ventricular septal defect treatment instrument. The ventricular septal defect treatment instrument comprises a patch, a conveying sheath tube, a push rod and a limiting piece, the patch is arranged in the conveying sheath tube after being compressed, and is positioned at the first end of the conveying sheath tube; the limiting piece is arranged at the second end of the conveying sheath tube, and a through hole allowing the push rod to penetrate through is formed in the limiting piece; the push rod is used for pushing the patch out of the conveying sheath tube. According to the technical scheme, the patch is compressed in the conveying sheath tube, the position of the ventricular septal defect is detected through the head of the conveying sheath tube, the patch can conveniently pass through a small ventricular defect, then the push rod is operated to release the patch, the released patch can be fixed to the left ventricular surface of the ventricular septal through the suture line or the fixing claw, and therefore repairing of the ventricular septal defect is completed.
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