Coronary artery bypass proximal anastomosis assisting apparatus convenient to operate

Abstract

The invention discloses a coronary artery bypass proximal anastomosis assisting apparatus convenient to operate. The tail end of an upper cramp ring link (2) extends into a housing (1) to be connectedwith a worm gear I (7) driving the upper cramp ring link (2) to rotate, the worm gear I (7) is connected with a worm I (8) adopting a hollow structure, and one end of the worm I (8) extends out of the housing (1) to be connected with an adjusting knob I (9); and the tail end of a core tube (5) communicates with a blood discharge device (6) through a sliding driving rack (10); the sliding drivingrack (10) is connected with a driving gear (11), the driving gear (11) is coxially connected with a worm gear II (12 ), the worm gear II (12) is connected with a worm II (13), one end of the worm II (13) penetrates through the hollow structure of the worm I (8) to be connected with an adjusting knob II (14) overlapped to the adjusting knob I (9), and the worm I (8) and the worm II (13) can coaxially rotate relatively. The coronary artery bypass proximal anastomosis assisting apparatus has the characteristics of being convenient to operate, simple and compact in structure, and capable of reducing shielding probability of operation visual fields.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an anastomotic auxiliary device for proximal end anastomosis of coronary artery bypass grafting which is easy to operate. Background technique [0002] At present, in vascular surgery, it is often necessary to temporarily block the blood flow between the proximal end and the distal end to ensure that the operation can be performed normally. However, temporary blockage of blood flow between proximal and distal ends is often accompanied by intimal injury, partial / complete wall thickness injury, and thromboembolism caused by injury. In addition, these injuries can also lead to endothelial denudation, intimal hyperplasia, atherosclerotic lesions, and stenosis of the official lumen. In severe cases, plaques in the ascending aorta will fall off due to external disturbances, causing stroke. In order to reduce the above-mentioned risk of injury, the minimally invasive and easy-to-operate ...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned auxiliary equipment can reduce the damage of the blood vessel, it is inconvenient to operate during the operation. The specific manifestation is that when the lower buckle clamp is operated, it is necessary to use the attached auxiliary rotating rod to rotate the lower buckle clamp knob to assist in locking and adjusting the position. In order to prevent the lower buckle clip from loosening, the auxiliary rotary rod needs to be repeatedly assembled and disassembled every time it is adjusted. The operation is complicated and will affect the efficiency of the operation

In addition, the distribution of the upper and lower buckle clamp knobs is scattered, making the external structure of the auxiliary device more complicated, and the scattered adjustment knobs may block the surgical field of view during the operation

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