Occluder delivery system for cardiac surgery department

Abstract

The invention relates to an occluder conveyance system comprising a puncture sheath with a puncture sheath tube and a propel member displaced therein, an occluder tubular carrier having a unilateral valve in the end and a conveyance steel cable used for cardiac surgery department. The puncture sheath tube and the occluder tubular carrier form a detachable connection by a set of connection member. The occluder conveyance system introduces the occluder from the body surface directly to the affected part by the puncture sheath under the guidance of an ultrasonic equipment. It is free of radiation, contrast and other interference tool, having no request on patient age and no impact on peripheral vessel, in addition, it has short operation time and low therapycost.

Description

technical field [0001] The invention relates to the field of medical devices and appliances, in particular to a delivery system for an occluder used in cardiac surgery for treating heart septal defects and abnormal blood vessel passages. Background technique [0002] Cardiac septal defects, including atrial septal defect, ventricular septal defect, and patent ductus arteriosus, are a group of common congenital heart diseases. In the past, the treatment of these diseases required surgical thoracotomy and open-heart surgery. The damage is large, the cost is expensive, and it will bring surgical complications and leave surgical scars, causing long-term physical and psychological trauma to patients. In addition, patent ductus arteriosus and atrial septal defect have a certain rate of recanalization after surgery, some of which require reoperation. The certain mortality rate and cosmetic problems caused by surgery have all caused people to try to replace surgery with minimally ...

AI Technical Summary

Problems solved by technology

[0004] 1. The delivery of the occluder must rely on large-scale X-ray imaging equipment;

[0005] 2. The developer must be used for the delivery of the occluder;

[0006] 3. The delivery of the occluder must be carried out through the blood vessel. For small patients with large defects, it is often difficult to deliver a larger occluder through a small blood vessel;

[0007] 4. Complicated operations over a long distance in peripheral blood vessels are difficult and prone to complications

[0008] Due to the above reasons, although the interventional treatment of congenital heart disease with an intracardiac occluder reduces the trauma compared with surgical operations, the cost of medical treatment is significantly increased; at the same time, once an interventional accident occurs, surgery has to be performed again

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