Proximal anastomosis device

Abstract

The invention provides a proximal anastomosis device, and belongs to the technical field of surgical medical supplies. A lower part of a hemispherical body is provided with a circular bottom edge, the middle part of the hemispherical body is provided with a connecting shaft, the bottom edge of the hemispherical body is in circle shape, the diameter R of the circle is 16 mm, the hemispherical body is a hemisphere with a diameter A of 16 mm, the hemispherical body is formed by latticed body wires, and the latticed body wires are gathered and fixed at one point on the top end of the hemispherical body and connected with the connecting shaft. The proximal anastomosis device has the advantages that leakage from blood flow anastomosis stoma of aorta ascendens is prevented, a proximal end of saphenous vein bypass grafts is convenient to suture, and inner wall peeling of aorta ascendens caused by use of a side wall clamp is prevented. A memory function is provided by the proximal anastomosis device, so that after the proximal saphenous vein bypass graft is sutured in a surgery, the device can be taken out through catheters with diameters of 3.5 mm, 3.8 mm, 4.0 mm, 4.3 mm and 4.5 mm, and can be recovered to the original state for suturing the next proximal anastomosis stoma. The device can be reused in the same surgery of the same patient.

Description

technical field [0001] The invention relates to a near-end anastomotic device, which belongs to the technical field of surgical medical supplies. Background technique [0002] Coronary artery bypass grafting is a common procedure to treat coronary artery disease. This procedure uses veins or arteries removed from the chest, leg, or arm, proximally anastomosed to the ascending aorta, and distally across narrowed or blocked coronary arteries to improve blood supply to the heart and reduce the incidence of cardiovascular events , thereby improving the quality of life of patients and prolonging life expectancy. Since the proximal anastomosis of coronary artery bypass grafting grafts is directly sutured on the ascending aorta, when suturing the proximal anastomosis in conventional bypass grafting, it is necessary to use side wall clamps to clamp part of the ascending aorta and block the anastomosis However, when the ascending aorta is clamped or released with side wall clamps, ...

AI Technical Summary

Problems solved by technology

Since the proximal anastomosis of coronary artery bypass grafting grafts is directly sutured on the ascending aorta, when suturing the proximal anastomosis in conventional bypass grafting, it is necessary to use side wall clamps to clamp part of the ascending aorta and block the anastomosis However, when the ascending aorta is clamped or released with side wall clamps, the intima of the ascending aorta and atherosclerotic plaque will fall off, and the vessel wall will be damaged, which will easily cause systemic circulation embolism, and then cause Cerebral infarction and distal arterial embolism, especially patients with calcification of the ascending aorta, are more likely to cause the above complications, and even cause the proximal anastomotic stoma to fail to be sutured

Clinically, no good solution has been found

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