Extendable endoscope pusher tube with guide wire

Abstract

The invention discloses an extension-type endoscope propelling membrane tube with a guide rope. An annular sealing interlayer is arranged in a membrane tube body, wherein a support ring, and a support connected with the support ring are mounted in the annular sealing interlayer; filling holes are formed in the outer wall of the annular sealing interlayer; after penetrating out from the front end of the membrane tube body via the center of the membrane tube body, a guiding rope turns back on the outer side of the membrane tube body and reaches the rear part of the membrane pipe body; during the in-and-out processes of the endoscope, a guide tube is prevented from being in contact with the inner wall of small intestine, and the relative sliding friction is not generated. According to the membrane tube provided by the invention, during the propelling and the withdrawing processes of the endoscope, through driving the inner wall of the membrane pipe body to displacement, the guide tube enables the membrane tube body to extent gradually so as to realize the advancing and withdrawing; the membrane tube body conducts displacement in a rolling manner along a cavity wall to be detected; the propelling process is a conversion process in which the inner wall of the membrane tube body is extended step by step as the outer wall; the withdrawing process is a conversion process in which the outer wall of the membrane pipe body is extended reversely step by step as the inner wall; as a result, the damage or the pulling of the cavity wall to be detected is avoided during a checking process, and the non-invasive detection is realized, so that the pain of a patient is alleviated.

Description

technical field [0001] The invention relates to an endoscope propulsion auxiliary device as a medical instrument, which is mainly used to propel the small intestine endoscope to carry out the inspection and operation of the digestive tract. technical background [0002] In the existing endoscope propulsion, the endoscope catheter and the intestinal wall are in direct contact with each other in a sliding friction manner. Its main disadvantages are: in the process of entering and exiting the endoscope, the friction force between the catheter and the intestinal wall is relatively large, and it increases with the increase of the depth of entry, which is easy to damage the intestinal wall mucosa; the catheter has a large pulling force on the intestinal wall , prone to hard contusions. In severe cases, endoscopy cannot be continued due to convulsions. [0003] In addition, due to the limitation of the surgical channel, it is difficult to deliver surgical instruments to the lesio...

AI Technical Summary

Problems solved by technology

Its main disadvantages are: during the process of entering and exiting the endoscope, the friction between the catheter and the intestinal wall is relatively large, and it increases with the increase of the depth of entry, which is easy to damage the intestinal wall mucosa; the catheter has a large pulling force on the intestinal wall , prone to hard contusion

In severe cases, endoscopy cannot be continued due to convulsions

[0003] In addition, due to the limitation of the surgical channel, it is difficult to deliver surgical instruments to the lesion in the cavity, remove the cut lesion tissue (such as polyps), and administer drugs to the lesion

For example, when the bleeding needs to be stopped at the same time as the operation, or when the congestion needs to be taken out at the same time as the operation, since the channel is single, it cannot be performed at the same time.

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