Acoustic generator after total laryngectomy

Abstract

The invention relates to an acoustic generator after total laryngectomy. The acoustic generator is characterized in that a diaphragm valve is arranged on a concave platform in a tubular end inside a bracket on one end of the acoustic generator; the other end of an acoustic tube opposite to an air inlet is provided with a string; when the acoustic generator is mounted, local anaesthesia is adopted, fistulous tract is pricked by a cone, and the acoustic tube is inserted into the fistulous tract once, and the string is bound on a close position of a patient. Compared with the prior artificial acoustic generator, the acoustic generator has significant advantages of simple structure, reliable performance, improved tone quality, prolonged service life, simple and easy installation, self-service change realization for the patient, pains and cost reduction for the patient and the like.

Description

Technical field [0001] The invention belongs to the field of medical equipment, and relates to an artificial sound generator, in particular to a sound generator after total laryngectomy. Background technique [0002] There are many patients suffering from laryngeal diseases. After clinical surgery, especially after total resection surgery, they cannot speak and need to install artificial sound generators. An existing artificial sound generator used in clinical practice has a hanging piece on the peripheral edge of one end of the corresponding esophagus of the sound tube, and a duckbill valve is connected to the outside of the sound tube, and the corresponding tracheal fistula of the sound tube A baffle is arranged on the periphery of the mouth end and a tail-shaped pull handle is connected on the edge of the baffle, so that the artificial sound generator for fire protection can be accidentally entered into the body. An air inlet hole is also opened on the pipe wall inside the baf...

AI Technical Summary

Problems solved by technology

[0003] 1. Since there is a block and a tail-like handle at the end of the airway fistula of the sound transmission tube, and the tracheal fistula after laryngectomy is relatively small, the block and the handle occupy a large and long space. General anesthesia is required before the installation of the artificial vocalizer for an operation to expand the tracheal fistula. Two months later, an anesthesia operation for the fistula tract with an acoustic tube is required. After one week, a doctor needs to go to the hospital to install the artificial vocalizer. Used on patients, causing troubles to patients, increasing burden and suffering many times

[0004] 2. Because the duckbill-shaped valve protrudes too far out of the esophageal opening, not only the user is blocked from eating and swallowing food, but also the flexibility of the valve decreases after a period of use, and the valve does not work for a short period of time (half a year). It is necessary to go to the installation hospital to replace the artificial valve. sounder

[0005] 3. The inner diameter of the sound transmission tube is less than 2.5mm, the channel is small, and the diameter of the air inlet hole on the tube wall is less than 2.5mm, the opening is small, which affects the quality of the sound, the sound volume is light and small, the pronunciation is not clear, the speech is not smooth, and it is not easy to communicate with others Dialogue

[0006] Other artificial vocalizers, such as electronic laryngeal vocalizers and artificial laryngeal speech vocalizers, have complex structures, large volumes, large manufacturing difficulties, inconvenient installation and use, and high costs, which are unfavorable for popularization and application.

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