Percutaneous aortic valve replacement surgery conveying device with valve positioning function

Abstract

The invention relates to a percutaneous aortic valve replacement surgery conveying device with valve positioning function, which is characterized by comprising a conveying rod (1), a sheath pipe (5), a circular ring (3), positioning rods (2) and circular ring control cables (4), wherein the circular ring (3) is sheathed on the lower end of the percutaneous aortic valve replacement surgery conveying rod (1) and located in the conveying sheath pipe (5); the quantity of the positioning rods (2) is at least two, and one end of each positioning rod (2) is hinged with the conveying rod (1); and the quantity of the circular ring control cables (4) is at least two, the lower end of each circular ring control cable (4) is provided with a structure for supporting the circular ring (3), and the upper end of each circular ring control cable (4) stretches out of the human body along the axial direction of the conveying rod (1). The conveying device can play good auxiliary function on positioning the transplanted valve, increase the success rate of percutaneous aortic valve replacement surgery and reduce surgery difficulty and postoperative complications; the conveying device can also reduce surgery pain and risk for patients and decreases medical expenses.

Description

technical field [0001] The present invention relates to a medical device, especially a delivery device used in percutaneous aortic valve replacement surgery for accurate positioning of stents, in particular to a percutaneous aortic valve replacement surgery with valve positioning function Use the delivery device. Background technique [0002] At present, according to relevant statistical data, the incidence of aortic valve stenosis caused by aortic valve calcification is as high as 2% to 7% among the elderly over 65 years old, and the proportion increases with age. In patients with severe aortic stenosis, the left ventricular function is severely impaired, the quality of life of the patients is reduced, and the survival time is significantly shortened. Effective treatment is necessary. To date, surgical prosthetic aortic valve replacement remains the treatment of choice for those patients for whom surgery is an indication. [0003] In 2002, based on a large number of anima...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the position of the valve cannot be adjusted during the existing valve replacement process, and it is easy to cause the valve to be installed incorrectly or inaccurately, resulting in operation failure or postoperative complications. Delivery device for percutaneous aortic valve replacement surgery with valve positioning function that can prevent the release and dislocation of the valve stent and can adjust the position of the valve stent

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