Ventilation drainage tube for inferior nasal meatus auditory tube tympanum

A technology of Eustachian tube and drainage tube, which is applied in the field of Eustachian tube ventilation and drainage tube in the lower nasal passage, and can solve the problems that the function of the Eustachian tube cannot be effectively improved, the balloon dilation tube is expensive, and the expansion time is limited.

Pending Publication Date: 2021-09-07
EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, balloon dilatation tubes are expensive, and generally require general anesthesia to complete the operation; and the dilation tube must be taken out at the same time after dilation, an...

Method used

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  • Ventilation drainage tube for inferior nasal meatus auditory tube tympanum
  • Ventilation drainage tube for inferior nasal meatus auditory tube tympanum
  • Ventilation drainage tube for inferior nasal meatus auditory tube tympanum

Examples

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no. 1 example

[0032] figure 1 It is a schematic structural view of the ventilation and drainage tube of the lower nasal passage Eustachian tube and the tympanic cavity provided by the first embodiment of the present invention, figure 2 for figure 1 Schematic diagram of the structure of another angle of the ventilation and drainage tube in the middle, image 3 for figure 1 Schematic diagram of the structure of the fixed piece of the ventilation and drainage tube in the closed state. Please refer to figure 1 , figure 2 , image 3 , the lower nasal meatus eustachian tube tympanic drainage tube provided by the embodiment of the present invention includes an indwelling hose 1 and a fixing piece 2; There is a tympanic orifice 12, on the edge of the tympanic orifice 12 there are two fixed pieces 2, and a certain angle is set between the fixed pieces 2 and the indwelling hose 1; the lower nasal meatus orifice 11 is located in the lower nasal meatus (Fig. (not shown in the figure), most of ...

no. 2 example

[0040] The lower nasal meatus Eustachian tube tympanic ventilation and drainage tube provided in this embodiment is basically the same as the lower nasal meatus Eustachian tube tympanic ventilation and drainage tube provided in the first embodiment, the difference lies in the shape of the fixing piece 2, and the second embodiment fixes The sheet 2 is petal-shaped, and the number of fixed sheets 2 is four.

[0041] Figure 4 It is a schematic structural view of the ventilation and drainage tube of the lower nasal passage Eustachian tube provided by the second embodiment of the present invention, Figure 5 for Figure 4 Schematic diagram of the structure of the fixed piece of the ventilation and drainage tube in the closed state. like Figure 4 , Figure 5 As shown, the fixing pieces 2 provided in this embodiment are in the shape of petals, the number of fixing pieces 2 is 4, and the length is 2 mm.

[0042]It should be noted that the petal-shaped design of the fixed piece ...

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Abstract

The invention relates to a ventilation drainage tube for an inferior nasal meatus auditory tube tympanum. The ventilation drainage tube comprises an indwelling hose and fixing pieces, wherein the indwelling hose is integrally in a circular tube shape; one end of the indwelling hose is provided with an inferior nasal meatus tube opening, and the other end of the indwelling hose is provided with a tympanum tube opening; two fixing pieces are arranged on the edge of the tympanum tube opening; a certain angle (generally 90 degrees) is prefabricated between the fixing pieces and the indwelling hose; the inferior nasal meatus tube opening is located in the inferior nasal meatus close to the anterior nostril; most of the indwelling hose is located in the auditory tube; and the fixing pieces are located at the auditory tube tympanum opening of the tympanum. The ventilation drainage tube for the inferior nasal meatus auditory tube tympanum provided by the invention has good auditory tube ventilation and drainage effects; medicine spraying, air injection and flushing can be carried out from the front nostrils through the lower nasal meatus tube opening, and the recovery condition of the auditory tube can be observed from the front nostrils; and the ventilation drainage tube for the inferior nasal meatus auditory tube tympanum can be used for treating chronic exudative otitis media, refractory recurrent secretory otitis media, various sequelae caused by eustachian tube disorders, abnormal auditory tube opening, auditory tube stenosis and the like.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a ventilation and drainage tube for the auditory tube of the lower nasal passage and the tympanic cavity. Background technique [0002] The eustachian tube is on the upper part of the front wall of the tympanic cavity. One end enters the tympanic cavity from the front wall, and the other end enters the nasopharynx. It is a channel for communicating the tympanic cavity and nasopharynx. The passage to the nasopharynx plays an important role in the pathogenesis of secretory otitis media and is also one of the important factors affecting the success rate of tympanoplasty. [0003] In traditional myringotomy and tube placement, ventilation tubes are divided into straight tube type, dumbbell type, oblique type, T-type and so on according to the shape. Long-term placement of the ventilation tube on the tympanic membrane can cause irreversible damage to the shape of the tympanic...

Claims

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Application Information

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IPC IPC(8): A61F11/00
CPCA61F11/00
Inventor 王武庆吴拥真李华伟王丹赵婕丽
Owner EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV
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