catheter blowing

In the catheter blowing method, the front end of the eustachian tube is curved, and the opening at the end is slightly larger and flared. There is a small ring on the outside of the end opening, which is just opposite to the direction of the front end of the catheter, indicating the direction of the front end. There are two main methods of operation, the eustachian tube round pillow method, and the nasal septum method. This method can be used when the catheter is difficult to pass due to turbinate hypertrophy or nasal septum deviation. Insert the catheter from the contralateral nasal cavity, reach the posterior wall of the nasopharynx, rotate 90° to the test, exit to the posterior margin of the nasal septum, and then rotate upward 45°. At the same time, make the front end reach as far as possible, and enter the eustachian tube. . Basic Information Specialist Category: Respiratory Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Pay attention to rest, don't hurt your nose. Normal value After auscultation through the auscultation, the Eustachian tube is unobstructed. Clinical significance Abnormal results: Auscultation tube auscultation, eustachian tube is not smooth. Need to check the crowd: patients with obstruction of the eustachian tube. Precautions Taboo before the test: pay attention to rest, do not hurt the nose. Taboo when inspecting: When the catheter is inserted and withdrawn, the action should be gentle, and the action should be sent or quit. Do not use violence to avoid damage to the mucous membrane of the nasal cavity or eustachian tube. If the air is blown properly, excessive force may cause perforation of the tympanic membrane, especially when When the tympanic membrane has atrophic scar, it should be more careful. When there are pus or sputum in the nasal cavity or nasopharynx, it should be removed before blowing. Pay attention to prevent the subject from causing eustachosis due to reflex cough, swallowing, belching, etc. Trauma of the pharynx. Inspection process Eustachian tube round pillow method: The patient holds the end of the catheter with the curved end of the front facing down, inserting the anterior nares, and slowly extending into the nasopharynx along the nasal floor. When the front end of the catheter reaches the posterior wall of the nasopharynx, rotate the catheter 90° to the side to be examined, and slowly withdraw a little outward. At this time, the front end of the catheter passes over the eustachian tube round pillow and falls into the throat of the eustachian tube. The catheter is rotated upward and upward by about 45°, and the catheter is fixed with the left hand. The rubber ball is blown to the end of the catheter by the right hand for several times, and the auscultation tube is auscultated to determine whether the eustachian tube is unobstructed. After the blow is completed, rotate the front end of the pipe downwards and slowly withdraw. Nasal septum method: This method can be used when the catheter is difficult to pass due to turbinate hypertrophy or nasal septum deviation. Insert the catheter from the contralateral nasal cavity, reach the posterior wall of the nasopharynx, rotate 90° to the test, exit to the posterior margin of the nasal septum, and then rotate upward 45°. At the same time, make the front end reach as far as possible, and enter the eustachian tube. . Not suitable for the crowd Inappropriate people: those with acute infection in the upper respiratory tract, pus, ulcers, new organisms in the nasal cavity or nasopharynx, and acute infection in the upper respiratory tract. Adverse reactions and risks Nothing.

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