Nut cap of tubular anastomat

Abstract

The invention discloses a nut cap of a tubular anastomat, belonging to a medical appliance. A sinking cavity is arranged in the inner end of a cap body and is internally provided with a backstop which is a bulge extending radially from the peripheral wall of the sinking cavity or a bulge extending axially from the bottom surface of the sinking cavity. The nut cap of the tubular anastomat is difficult to fall off from the rear end of an adjusting handle of the tubular anastomat and can improve the use reliability of the tubular anastomat.

Description

technical field [0001] The invention relates to a medical device, in particular to a tubular stapler. Background technique [0002] Diseases in the human stomach, lung tissue and digestive tract are mainly treated with surgery, and tubular staplers are widely used in surgical operations to anastomose human tissues. The use of tubular stapler can reduce operation time and improve operation quality, the anastomosis is firm and reliable, and the hemostatic effect is good. The cap of the existing tubular stapler is directly mounted on the rear end of the adjustment handle by thrust. The inner cavity of the adjustment handle has a nut and a screw. The nut is threadedly connected to the screw. Moving toward the rear end of the adjustment handle, the rear end of the screw rod is easy to push off the cap, so that the cap falls off from the rear end of the adjustment handle. Doctors have very high requirements for medical devices when performing anastomosis operations. After the ca...

AI Technical Summary

Problems solved by technology

The cap of the existing tubular stapler is directly mounted on the rear end of the adjustment handle by thrust. The inner cavity of the adjustment handle has a nut and a screw. The nut is threadedly connected to the screw. Move to the rear end of the adjustment handle, the rear end of the screw rod is easy to push off the cap, so that the cap falls off from the rear end of the adjustment handle

Doctors have very high requirements for medical devices when performing anastomosis operations. After the cap at the rear end of the adjustment handle falls off, the minimum gap between the stapler anastomosis cannot be guaranteed, and there is not enough space for the staples to be fired and formed, resulting in poor staple forming results. , resulting in the failure of the operation, the use of the tubular stapler with this cap is low in reliability and reduces the safety of the operation

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