Soft-hard conversion gastroscope

Abstract

The invention discloses a soft-hard conversion gastroscope, comprising an operation part, an insertion tube is connected with the operation part, and an end of the insertion tube far away from the operation part is provided with a leading end part. The insertion pipe is provided with a soft-hard changing channel and a steel wire channel. A magneto-rheological fluid is filled in that soft-hard conversion channel, an excitation coil for generating a magnetic field is arrange outside the soft-hard conversion channel, and a soft-hard conversion button for controlling the on-off of the excitation coil is arranged on an operation part. The operation part is provided with an adjusting knob for adjusting the direction, and a leading end part is provided with a leading end steel wire channel, wherein the steel wire channel and the inner leading end steel wire channel are provided with an adjusting steel wire, one end of the adjusting steel wire is fixedly connected with the end part of the leading end part, and the other end is connected with the adjusting knob. The soft-hard conversion gastroscope of the invention can realize the soft-hard conversion of the insertion tube, namely, in the insertion process, the insertion tube is soft, and the injury to the patient's esophagus is prevented. When the lesion is found, the insertion tube can be transformed into a rigid tube to facilitate control of the apex movement.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a gastroscope capable of realizing soft-hard conversion. Background technique [0002] Gastroscopy is a method of medical examination and also refers to the equipment used in this examination. Gastroscopy can directly observe the real situation of the inspected part, and can further confirm the diagnosis through pathological biopsy and cytological examination of suspicious lesions. It is the preferred inspection method for upper gastrointestinal lesions. It is inserted into the stomach through a thin, flexible tube, allowing doctors to directly observe lesions in the esophagus, stomach, and duodenum, especially for minor lesions. The earliest gastroscope is the Kussmore tube invented by the German Kussmore in 1868, which is actually a long metal tube with a mirror at the end. But because this kind of gastroscope is easy to puncture the patient's esophagus, i...

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Problems solved by technology

[0004] The existing inner diameters are flexible gastroscopes. Although flexible gastroscopes can effectively prevent damage such as puncturing the patient’s esophagus, when a lesion is found, it is necessary to precisely control the turning of the apex so that the apex can be accurately aligned with the location of the lesion. Due to the current The entire insertion tube of the flexible gastroscope is soft. When the medical staff adjusts the direction of the tip, it is easy to cause the entire gastroscope insertion tube to bend and deform, which interferes with the bending direction of the tip, resulting in the inability to accurately control the direction of the tip. And the operating experience of medical personnel is very high

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