Novel continuously variable locking mechanism of circular stapler

Abstract

The invention provides a novel infinitely variable locking mechanism of a circular stapler. Including fixed handle, connecting rod, fastening pin, driving screw, driving pin, driving pin retaining ring, adjusting nut, limit baffle, in assembly, the connecting rod and driving screw are passed through the tight Fixed pin connection, the transmission pin and the adjustment nut are fitted with interference, and the transmission pin retaining ring is placed on the periphery of the transmission pin, the limit baffle and the adjustment nut are threaded, assembled at the end of the adjustment nut, the transmission screw rod and the adjustment nut Adopt rectangular thread connection. When locking the tissue, the speed can be effectively adjusted according to the clinical needs, and at the same time, the tissue can be locked in a standardized way that meets the physiological performance, which can effectively prevent the tissue from being damaged due to excessive locking, and ensure the quality and safety of the operation.

Description

technical field [0001] The invention specifically relates to a continuously variable locking mechanism of a novel circular stapler, which belongs to the field of medical devices. Background technique [0002] In surgical operations, when the doctor performs an effective anastomosis on the tissue, the tissue needs to be locked in advance to ensure the safety of the anastomosis, and at the same time, the locked state needs to be kept for about 30 seconds after the anastomosis to help stop bleeding. At present, the locking mechanism of the traditional stapler is not effective in compressing the tissue. At the same time, the adjustment of the locking speed mainly depends on the doctor's clinical operation experience. It is often easy to stab the tissue because the speed cannot be adjusted effectively. The lack of a unified clinical operation specification often results in anastomosis. Mouth oozing, bleeding and even anastomotic leakage, etc., will threaten the life of the patien...

AI Technical Summary

Problems solved by technology

At present, the locking mechanism of the traditional stapler is not effective in compressing the tissue. At the same time, the adjustment of the locking speed mainly depends on the doctor's clinical operation experience. It is often easy to stab the tissue because the speed cannot be adjusted effectively. The lack of a unified clinical operation specification often results in anastomosis. Mouth oozing, bleeding, and even anastomotic leakage, etc., will threaten the life of the patient in severe cases

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