Elastic plugging device structure for cardiac surgery

Abstract

The invention discloses an elastic plugging device structure for cardiac surgery. The elastic plugging device structure comprises a plugging device catheter and a guide tube, wherein side holes are formed in the positions, corresponding to double-hole heart septal defects, of the guide tube; a bottom plate is fixed to the inner side wall of the guide tube; two mounting holes are formed in the positions, corresponding to the two side holes, of the bottom plate; a fixing rod is fixed in each mounting hole; and an elastic contraction device is fixed to the outer portion of each fixing rod in a winding mode. When the plugging device catheter carries the plugging device structure to penetrate through the inlet end of a first channel, the plugging device structure touches the elastic contractiondevices, can penetrate out of the side holes above the guide grooves along the guide grooves and is placed at the corresponding heart notch positions, a pull rod is arranged in a second channel, whenthe pull rod pulls the guide tube outwards, the two elastic contraction devices are pulled to be tightened into the second channel, so that a guide channel defined between the guide grooves of the elastic contraction devices in the first channel and the inner wall of the guide tube is enlarged, and the plugging device catheter can pass through the guide channel.

Description

technical field [0001] The invention relates to the technical field of auxiliary medical devices for extracardiac surgery, in particular to an elastic occluder structure for extracardiac surgery. Background technique [0002] Cardiac septal defect, including atrial septal defect, ventricular septal defect, and patent ductus arteriosus, is a group of common congenital heart diseases. Before interventional treatment methods were not developed, surgical thoracotomy and open heart surgery were necessary for these diseases. The damage to the patient is large and the cost is high, but there are many deficiencies in the early interventional therapy. Since the 1990s, the memory alloy wire invented by the American radiologist Amplatzer is in the shape of mushroom umbrella and bottle stopper. And the double-disc occluder overcomes most of the shortcomings of the previous interventional treatment methods, but this operation must borrow large-scale X-ray impact equipment, and it is diff...

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Problems solved by technology

[0002] Cardiac septal defect, including atrial septal defect, ventricular septal defect, and patent ductus arteriosus is a group of common congenital heart diseases, and interventional treatment methods were not developed before At times, these diseases must undergo surgical thoracotomy and open-heart surgery, which cause great damage to the patient and are expensive, but there are many shortcomings in the early interventional therapy. Since the 1990s, it was invented by American radiologist Amplatzer The mushroom-shaped, cork-shaped, and double-disc occluders made of memory alloy wires have overcome most of the shortcomings of previous interventional methods, but this operation must use large-scale X-ray impact equipment. , and the complex operation through a long distance in the peripheral blood vessel is difficult and prone to complications

It not only requires doctors to have certain experience, but also requires more other interventional equipment. In order to simplify the difficulty of surgery, the patent number is 200610090704.8, and the invention patent named "A Cardiac Surgery Occluder Delivery System" proposes that the system can be used to The cardiac surgeon can directly send the occluder into the lesion for occlusion treatment through the puncture of the body surface; however, when the patient has a double-hole cardiac septal defect, it cannot solve the problem of guiding and positioning multiple affected areas. For this reason, we propose a kind of elastic occluder structure and its application method for extracardiac surgery

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