Clinical diagnosis sampling device for digestive system department

Abstract

The invention discloses a clinical diagnosis sampling device for the digestive system department, which comprises an inner tube, an outer tube is arranged on the outer side of the inner tube, and an air passage for air flow to pass through is arranged between the outer tube and the inner tube; the sampling mechanism is mounted on the outer side of the outer tube, the sampling mechanism is communicated with the outer tube, and the sampling mechanism is inflated to expand and then scrapes in the esophagus, so that esophageal exfoliated cells are collected; the inflating mechanism is mounted at the end parts of the inner pipe and the outer pipe, and the inflating mechanism is used for inflating gas into the sampling mechanism; sampling can be conducted at different positions of the esophagus of a patient in a staged mode through the single air bag, the specific position of a focus can be conveniently determined, on the premise that the air bag is kept inflated through the inflation mechanism, friction resistance between the air bag and the inner wall of the esophagus of the patient is reduced, and the esophagus of the patient can be more accurately positioned. The possibility of esophageal mucosa damage of a patient is reduced, and the patient can conveniently and comfortably sample.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a clinical diagnostic sampling device for gastroenterology. Background technique [0002] Gastroenterology is a three-level clinical discipline that studies diseases of the esophagus, stomach, small intestine, large intestine, liver, gallbladder and pancreas. Gastroenterology has a wide variety of diseases, a wide range of medical knowledge, and complex and delicate operations. [0003] The Department of Gastroenterology needs to sample blood, urine, feces or tissue cells of the patient for testing and analysis during diagnosis, so as to determine the location and cause of the patient's lesions. When sampling the exfoliated cells of the patient's esophagus, the method of pulling net collection cytology is usually used. Sampling the patient's esophagus cells, that is, a double-lumen rubber tube with a length of 65 cm and a diameter of 0.25 cm (with a mesh balloon attached...

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Problems solved by technology

Gastroenterology has a wide variety of diseases, a wide range of medical knowledge, and complex and delicate operations

[0003] Gastroenterology needs to sample the blood, urine, feces or tissue cells of the patient for testing and analysis in order to determine the location and cause of the patient's lesion. When sampling the exfoliated cells of the patient's esophagus, the method of cytological examination is usually used to collect samples from the patient's esophagus. Sampling the patient's esophageal cells, that is, slowly sending a 65 cm long and 0.25 cm diameter double-lumen gum tube (with a mesh air bag attached to the top) into the stomach from the mouth, inflating 20-30 ml (depending on the patient's condition) ), slowly pull it outward, and adjust the amount of inflation at any time, so that the net can pass through and fully rub against the esophageal wall. Observed under an optical microscope, however, during the friction process of the reticulum in the esophagus, the movement stroke is relatively large, and the approximate area of ​​the lesion can only be roughly determined. Repeated inspections are required to determine the specific location of the lesion, and the operation process is relatively complicated. It is cumbersome and inconvenient for doctors to operate. Repeated friction of the patient's esophagus may cause damage to the mucosa of the patient's esophagus, and the patient is more uncomfortable. Therefore, we propose a diagnostic sampling device for clinical use in gastroenterology.

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