The invention provides an anti-skid, self-dilating and degradable
esophagus stent with a negative Poisson's ratio structure. The anti-skid, self-dilating and degradable
esophagus stent with the negative Poisson's ratio structure is characterized by comprising a main
stent body made of a totally or partially degradable material, wherein the main stent body comprises an upper end part, a middle partand a lower end part which are connected in sequence, an upper port and a lower port are formed in the top end of the upper end part and the bottom end of the lower end part respectively, and inner
diameter of the upper port and inner
diameter of the lower port are both larger than inner
diameter of the middle part. Minimally invasive implanting of the
esophagus stent is realized by the negativePoisson's ratio effect, and the esophagus wall is uniformly stressed in the stent dilating process, so that damage is effectively prevented, axial shrinkage is avoided and the stent is prevented fromdisplacing; meanwhile, by means of the negative Poisson's ratio structure, discomfort of a patient in an eating process can be relieved by the radial process of the stent while displacement is avoidedin the eating and
swallowing process of the patient. The esophagus stent dilates automatically and gradually and is biodegradable under external motivation, and the problems of in-
stent restenosis, difficulty in taking-out after implantation and the like are effectively solved.