An auxiliary device for rapid docking of blood vessels during operation

Abstract

The invention relates to a fast butt-joint auxiliary device for intraoperative blood vessels. The fast butt-joint auxiliary device comprises a butt-joint ring and a releasing device. The butt-joint ring is formed by overlapping valve rings in a head-tail mode, and the size is adjustable. A shaft of the releasing device can rotate relative to a shaft sleeve instead of moving axially, a rear nut can rotate relative to the shaft while sliding relative to a sliding groove, expansion valve rings are connected with front nuts and the rear nut through connecting rods respectively, uniform tension positioning columns on the expansion valve rings are matched with uniform tension positioning columns in the butt-joint ring, fixing grooves are matched with guide grooves to convey the butt-joint ring to a pre-butt-joint position, the front nuts and the rear nut are equal in moving speed and opposite in direction, it is ensured that the expansion valve rings are parallel to the shaft, and the butt-joint ring is uniformly expanded to a suitable size; in the expanding process, the valve rings are held together through front and rear holding claws of the valve rings, by means of the guide grooves, the adjacent valve rings slide in the circumferential direction, and it is ensured that the butt-joint ring is formed well; an upper annular groove and a lower annular groove formed by the guide grooves are used for overlapping, bundling, limiting and falling preventing of human body blood vessels and artificial blood vessels.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an auxiliary device for rapid docking of blood vessels during operation. Background technique [0002] Aortic disease is a cardiovascular disease that seriously threatens people's health. Even in the United States, where medical conditions and technology are relatively developed, 15,000 people die of aortic aneurysm and aortic dissection every year. Aortic diseases mainly include aortic dissection, aortic aneurysm, etc. Aortic dissection is a catastrophic disease. If it is not treated in time, the chance of rupture is very high and the mortality rate is also very high. According to reports, the early mortality rate of untreated aortic dissection increased by 1% per hour, and more than 50% of patients died within 1 week. Deep hypothermic circulatory arrest and open anastomosis are often used in aortic thoracotomy, and the operation is relatively complicated. ...

AI Technical Summary

Problems solved by technology

For example, in the patent "An artificial blood vessel connection collar (ZL01202005.2)", an artificial blood vessel connection collar is introduced, including a connection collar bundle, an artificial blood vessel, and a human blood vessel, wherein the connection collar is a through ring The ring is made of biocompatible material; the inside is formed as an inner wall, and the outside is formed as a small ring groove at the front end and a large ring groove at the rear end. It has the advantage of quickly connecting the artificial blood vessel and the aorta, reducing the operation time and blood loss. The product Good formability (guaranteed by the roundness of the product itself); the disadvantage is that each loop can only match a blood vessel of one specification, which requires multiple artificial vascular loops to be prepared when the specification of the patient’s blood vessel is unknown, and the selected loop cannot be guaranteed. The specification product fits closely and moderately with the inner wall of the blood vessel

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