Novel adjustable anal expander for gastrointestinal surgery

Abstract

The invention discloses a novel adjustable anal expander for a gastrointestinal surgery. The novel adjustable anal expander comprises a jacking head, a cylinder body and a positioning ring, wherein the cylinder body is arranged at the rear end of the jacking head; the positioning ring is arranged on the outer side of the end, far away from the jacking head, of the cylinder body; the jacking head is formed by combining a plurality of jacking bent plates; the cylinder body is formed by combining a plurality of anal expanding bent plates; the positioning ring is formed by combining a plurality ofpositioning single plates; a retractable sliding cavity is formed in each anal expanding bent plate; bent plate sliding grooves are formed in two sides of each anal expanding bent plate; a hole expanding bent plate is arranged between every two adjacent anal expanding bent plates; clamping heads are arranged on two side edges of each hole expanding bent plate; and the clamping heads on the two sides are clamped into the retractable sliding cavities in the adjacent anal expanding bent plates respectively. According to the novel adjustable anal expander for the gastrointestinal surgery, throughcooperation of the designed retractable sliding grooves and anal expanding inserting plates, the anus of a patient can be expanded gradually and the condition of anal fissure is avoided.

Description

technical field [0001] The invention relates to the field of gastrointestinal surgery, in particular to a novel adjustable anal dilator for gastrointestinal surgery. Background technique [0002] Anal dilation, also called anal canal dilation, refers to a method of dilating the anus with fingers or instruments under local anesthesia or general anesthesia. Anal expansion is often used in anorectal disease inspection, treatment and postoperative recovery. The existing anal expansion technology requires the use of anal expander to achieve; [0003] An anal dilator with application number CN104706313B includes a chassis, a guide rail disc, an expansion rod, and a connecting ring. The guide rail disc, the expansion rod, and the connecting ring are arranged on one side of the chassis, and the guide rail disc is fixed on the chassis through the expansion rod and the connecting ring. , the chassis is circular, with a ring of protrusions on the outer edge of the chassis, a fixed han...

AI Technical Summary

Problems solved by technology

[0004] The application number is CN102029013A, an anal expander seat for surgery, which is used for the expansion of the anus and the anal canal. : The main body and the wide side of the anal dilator seat for the operation are roll-shaped structures, including a positioning edge and an adjusting edge that can selectively move or fix each other, and the outer wall of the adjusting edge is close to the positioning edge The inner wall of the positioning edge, and the adjustment edge can slide relatively along the inner wall of the positioning edge. Although this invention realizes the function of gradual expansion, it also solves the above-mentioned problem of small contact area, but it adopts the design of the roll-type structure and buckle , there is no guarantee that the buckle will fail during use, and the reel will rebound in the anus, causing secondary injuries, and the adjustment space is also very limited

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