Tympanic cavity-eustachian tube drainage device

Abstract

The invention provides a tympanic cavity-eustachian tube drainage device which comprises a support sheet and a drainage strip, wherein the support sheet is connected with one end of the drainage strip; drainage slots are formed in the surfaces of the support sheet and the drainage strip and include first drainage slots and a second drainage slot; the first drainage slots are formed in the supportsheet and extend to one end of the drainage strip from the periphery of the support sheet; the second drainage slot is formed in the drainage strip and extends to the other end of the drainage strip from one end of the drainage strip; and the first drainage slots are in butt connection with the second drainage slot. The support sheet can cover a mucosa of a tympanic cavity; at the same time, the drainage strip can be inserted into an eustachian tube; the first drainage slots drain secretions to the drainage strip from the tympanic cavity; the second drainage slot drain the secretions drained by the first drainage slots to the outside of the tympanic cavity; and the tympanic cavity-eustachian tube drainage device can avoid adhesion of the tympanic cavity and an ostium of the eustachian tube, drain the secretions in the tympanic cavity, improve a ventilation function of the eustachian tube and a middle ear, help reconstruct a pneumatic space of the tympanic cavity and increase hearing reconstruction probability.

Description

technical field [0001] The invention relates to the technical field of medical devices, and in particular to a tympanic-eustachian tube drainage device. Background technique [0002] In otological surgery, many patients have poor condition of the middle ear mucosa and Eustachian tube. After the first-stage operation, poor ventilation and drainage of the tympanic chamber and Eustachian tube may cause postoperative middle ear adhesion or tympanic intratympanic fluid, which will affect the postoperative effect and the hearing of the patient, and even lose the chance of hearing reconstruction. [0003] In addition, Eustachian tube dysfunction is also an important factor in the development of other diseases of the middle ear. Poor eustachian tube function will affect middle ear ventilation and drainage of middle ear secretions, causing secretory otitis media, adhesive otitis media, cholesteatoma formation, etc., leading to hearing loss. However, due to the special physiological...

AI Technical Summary

Problems solved by technology

At present, a relatively new development is the use of Eustachian tube balloon to dilate the Eustachian tube, which is expensive. Preliminary data show that the disease may still relapse after surgery. There is no stable treatment method for patients with stubborn Eustachian tube dysfunction.

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