Safety device and drive device of one-time anorectal cutting anastomat

Abstract

The invention relates to a safety device and a drive device of a one-time anorectal cutting anastomat, belongs to medical instruments and is particularly applicable to anorectal hemorrhoids cutting in a matched mode. The safety device and the drive device of the one-time anorectal cutting anastomat comprise a locking ring, a straight push rod, a straight push rod spring, a safety device body, a movable handle assembly, a fixed handle assembly, an adjusting lead screw and an adjusting nut assembly. The adjusting lead screw is a variable pitch lead screw, a large-pitch screw is arranged in the middle, and small pitch screws are arranged at the two ends. The fixed handle assembly is formed by combining and welding a left fixing handle and a right fixing handle, and the upper portions of the inner sides of the fixing handles are provided with straight push rod slide grooves. The movable handle assembly comprises a movable handle, a movable handle cover, a handle pin and a movable handle spring. The safety device body comprises a safety block, a safety block pin, a safety block spring, a safety transmission rod and a safety transmission rod tension spring. The adjusting nut assembly comprises an adjusting nut, a lead screw fine adjustment nut, a sealing cover, a nut pin and a nut pin clamping ring.

Description

technical field [0001] The invention relates to a safety device and a driving device of a disposable anorectal cutting and anastomotic device, which belong to medical equipment, and are especially suitable for supporting use in anorectal hemorrhoid cutting and anastomosis. Background technique [0002] Anorectal hemorrhoids, commonly known as hemorrhoids, are common and frequently-occurring diseases unique to humans. According to relevant census data, the incidence rate of anorectal diseases is 59.1%, and hemorrhoids account for 87.25% of all anorectal diseases, and among them, internal hemorrhoids are the most common, accounting for 52.19% of all anorectal diseases. Both men and women can get the disease, the incidence rate of women is 67%, and the incidence rate of men is 53.9%. It can occur at any age, and it will gradually increase with age, so there is a saying of "nine hemorrhoids out of ten". General surgical treatment includes traditional operations such as ligation...

AI Technical Summary

Problems solved by technology

The operation is troublesome, and the doctor's clinical experience is required during the operation. A little carelessness in the operation will cause excessive bleeding, increase the pain of the patient, prolong the operation time, the success rate of the operation is low, the incision is not smooth and smooth, and the wound suture is not beautiful.

The front end of the original disposable anorectal hemorrhoid stapler used in the operation is integrated and inseparable, and there is no pocket hole at the front end to adjust the amount of resected tissue. The steps are cumbersome and lengthen the operation time

[0003] The anvil seat of the current disposable anorectal cutting stapler is directly fixedly connected with the adjusting bolt, and the length is long, which is inconvenient for the surgeon to operate, and the adjustment speed of the adjusting screw adopts ordinary screws is slow, and the operation is inconvenient. The current disposable anorectal cutting and anastomosis The device adopts a double-handle and connecting rod structure. During the operation, the surgeon is likely to pinch his hands and affect the normal operation. Moreover, the transmission force of the double-handle connecting rod is uneven, which may easily cause incomplete formation of the staples and affect the quality of the operation.

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