speculum tympanocentesis needle

Abstract

The invention relates to a tympanic membrane puncture needle with a sight glass. The tympanic membrane puncture needle comprises the auditory meatus sight glass (9), an otoscope (10) and a puncture needle body (11), and is characterized in that the puncture needle body (11) and the otoscope (10) are integrally fixed, an 85-degree angle is formed between a needle body front part (2) of the puncture needle body (11) and an otoscope front end (6), and a needle point (1) of the puncture needle body (11) is located on a straight line of the view center of the otoscope (10); the needle point (1) is 2 mm long, and an obstruction ring (4) is arranged at the tail of the needle point (1); the distance from the needle point (1) to the otoscope front end (6) is 28 mm, the diameter of the otoscope front end (6) is 5 mm, the diameter of an otoscope tail end (8) is 15 mm, and an included angle (12) between a needle body tail (3) of the puncture needle body (11) and an otoscope body part (7) is 120 degrees. The tympanic membrane puncture needle with the sight glass has the advantages that high illumination is provided, the view is clear, the tympanic membrane puncture needle is easy to fix, the insertion depth of the tympanic membrane puncture needle is proper, change conditions of the fluid level in the tympanic cavity are dynamically observed, fluid extraction and drug injection are completed through conventional puncture at one time, the pain of patients is relieved, and complications are prevented.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, in particular to a speculum tympanic membrane puncture needle used for otology treatment. Background technique [0002] Secretory otitis media is an inflammatory disease of the middle ear characterized by tympanic effusion and hearing loss. The main cause of the disease is the obstruction of the Eustachian tube, and the secretions in the tympanic cavity cannot be drained to the pharynx, forming a tympanic effusion. Tympanic effusion is mostly a mixture of transudate, exudate, and exudate. Clearing the tympanic effusion is the key to the treatment of secretory otitis media. Tympanocentesis is the most commonly used treatment for otitis media. It is simple and easy to perform, and repeated punctures can be performed if necessary. Clinically, a No. 7 needle is commonly used for tympanocentesis under the frontal mirror and headlight. Insufficient light, unclear vision, and inaccurate pu...

AI Technical Summary

Problems solved by technology

The positioning of the tympanic membrane puncture point is inaccurate under conventional light, but the application of a speculum tympanic membrane puncture needle can completely solve the problem of inaccurate positioning

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