Tubular anastomat

Abstract

The invention discloses a tubular anastomat. The tubular anastomat comprises a lead screw and a regulating mechanism connected with the tail of the lead screw, wherein the regulating mechanism comprises an inner nut, a ratchet wheel, an outer nut and an elastic element. The inner nut is connected with the tail of the lead screw, and the inner nut is provided with annular teeth; the ratchet wheel is sleeved on the inner nut, and the ratchet wheel is provided with ratchets opposite to the annular teeth; the outer nut is sleeved at the tail of the inner nut and fixed with the inner nut, and the outer nut is sleeved on the periphery of the ratchet wheel; and the elastic element is sleeved at the tail of the inner nut and positioned between the inner nut and the ratchet wheel. The pressure borne by tissues required to be sutured is transferred to the regulating mechanism in a mechanical mode, and a user is prompted whether the tissues have already entered a proper engagement position by matching of the annular teeth and the ratchets, so that the tissues can be effectively prevented from being over compacted or over relaxed, and the suturing firmness is ensured.

Description

technical field [0001] The invention relates to a surgical device, in particular to a tubular stapler. Background technique [0002] Various tubular staplers are being widely used in surgical operations, which can reduce operation time and improve operation quality. For example, tube-type digestive tract staplers are often used in end-to-end, end-to-side and side-to-side anastomosis operations of the esophagus, stomach, duodenum, small intestine, colon and rectum in the digestive tract, especially for difficult exposure and operation parts, the range of use is wider. [0003] The common tubular digestive tract stapler, its main body includes an elbow at the front, a firing handle at the middle, and an adjustment mechanism arranged on the handle at the rear. The end of the guide shaft is connected to the guide shaft, and the end of the guide shaft is connected to the nail abutting seat extending out of the elbow. The head of the elbow is provided with a nail magazine and a ...

AI Technical Summary

Problems solved by technology

This kind of operation is too dependent on experience, and it is easy to cause secondary damage to the tissue due to excessive pressure due to too small a gap, or cause tissue bleeding due to too large a gap, the risk of clinical use is relatively high, and the effect of use is unstable.

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