Oral and nasal cavity esophagus conductor

Abstract

The invention discloses an oral and nasal cavity esophagus conductor which comprises a nasal cavity duct and an elastic leading core, wherein the nasal cavity duct is placed into a nasopharyngeal cavity so as to establish a channel at an external naris and a rear naris outlet, then the elastic leading core can be fed into an oral cavity from the rear naris outlet under the leading of the channel; the elastic leading core is fed into the oral cavity under the leading of the nasal cavity duct, and is temporarily connected with a nasobilliary duct after moving out of the oral cavity, then the nasobilliary duct can be fed into the nasal cavity from the rear naris outlet and is led outside the nasal cavity from the outer naris. A leading cavity is formed in the nasal cavity duct, the head end of the leading cavity is bent in a J-shaped manner, and an included angle of 15-90 degrees is formed between a long axis of the elastic leading core after being led outside the leading cavity under the leading of the J-shaped bending of the head end of the leading cavity and a long axis in the leading cavity. The elastic leading core is a light guiding rope of which the surface is coated with a reflecting material; an elastic ring body is arranged at the head end of the elastic leading core. The oral and nasal cavity esophagus conductor is simple in structure, convenient to use, safe and effective, a bile duct can be rapidly and effectively led into the nasal cavity after the nasobilliary duct is embedded under an endoscope, pain of a patient can be reduced, and operation difficulty of medical operators can be reduced.

Description

technical field [0001] The invention relates to a medical guiding tube, which belongs to the technical field of medical instruments. Background technique [0002] Clinically, when performing endoscopic retrograde cholangiopancreatography (ERCP), it is often necessary to indwell a nasobiliary duct in some patients for intraductal bile drainage. When indwelling the nasobiliary duct, one end of the nasobiliary duct is placed in the biliary tract through the digestive tract through the oral cavity and the other end is left outside the oral cavity, and then the nasobiliary duct is led out of the nasal cavity through the oronasal conversion to reduce the patient's indwelling Degree of discomfort in the nasobiliary duct. [0003] When carrying out the nose-to-mouth conversion of the nasobiliary duct, the usual practice is: insert one end of a nasal catheter with certain elasticity from the nasal cavity into the oral cavity, then pull it out from the oral cavity by hand and connect...

AI Technical Summary

Problems solved by technology

[0004] The difficulty of nasobiliary tube nose-to-mouth conversion lies in the insertion of one end of the nasal cannula and its removal from the oral cavity: (1) The insertion depth of the nasal cannula is not easy to grasp, and if it is too deep, it may touch or insert the glottis and cause the risk of coughing or even laryngospasm; ( 2) One end of the nasal cannula is removed from the oral cavity by finger clamping or lock ring nesting, which is difficult to operate; (3) The removal of one end of the nasal cannula from the oral cavity increases the pain of the patient and may cause injury; (4) ) During the operation, the patient can’t tolerate it, and when the mouth is closed, it is likely to bite the operator’s fingers, and even cause infectious diseases; cause increased operational difficulty

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