A Novel Spiral Capsule Robot with Liquid Drug Releasing Functions

In the field of gastrointestinal and gastrointestinal diseases, the most common detection method is to use a digestive endoscope, but because the gastroscope passes through the human pharynx, it causes irritation to the pharynx, and patients will have discomfort such as nausea; after the colonoscopy enters the intestinal cavity, the patient will feel abdominal pain. To solve these problems, researchers invented capsule endoscopes. At present, after the capsule endoscope used in the clinic is swallowed by the human body, it is moved by the peristalsis of the intestine, and the internal image is transmitted to the outside world through wireless communication for diagnosis by the doctor, and finally discharged from the human anus, with low efficiency and controllability. In this paper, a liquid drug release module device that can be assembled on a micro-robot drive module is proposed, which uses a rotating magnetic field to push the internal spiral rotation structure, and pushes the piston at the bottom of the drug warehouse to squeeze the internal space of the drug warehouse, to achieve the purpose of releasing liquid drugs at a fixed point in the digestive tract.