Soft palate traction device for Davis mouth gag

Abstract

The invention relates to a soft palate traction device for a Davis mouth gag which belongs to a surgical medical instrument. The invention mainly solves the technical problems of easiness for enabling the mucosa of a nasal cavity to be damaged and easiness for causing the iatrogenic injury to the uvula of an existing surgical instrument. The invention adopts the technical scheme that the soft palate traction device for the Davis mouth gag comprises a compression spring, a traction plate, a fixing block, a traction plate positioning rod and a cover board, wherein the upper part of the fixing block is provided with a clamping groove installed on the Davis mouth gag; a flat slot for placing the traction plate is formed below the clamping groove; the lower part of the fixing block is provided with a cavity body; the center of the top surface of the cavity body is provided with a tooth hole communicated with the bottom surface of the flat slot; the traction plate is arranged in the flat slot of the fixing block; the traction plate positioning rod and the compression spring are arranged in the cavity body of the fixing block and a positioning clamping tooth of the traction plate positioning rod extends out of the tooth hole on the top surface of the cavity body to be matched with the sawtooth-shaped clamping groove of the traction plate; and the cover board is arranged at the bottom of the cavity body of the fixing block.

Description

technical field [0001] The invention relates to a soft palate pulling device of a David's gag, which belongs to a medical instrument for operation. Background technique [0002] Adenoid hypertrophy is a common disease that causes respiratory disorders in children, and surgical removal of adenoids is the most effective treatment. Due to the small nasal cavity in children, the oral approach is often used as the surgical approach. At the same time, due to the widespread use of sinus mirrors, the advantages of endoscopic surgery for adenoid removal make ENT doctors widely accept this surgical method, and the exposure of the nasopharynx during surgery is often used The urinary catheter or sputum suction tube passes through, and the catheter is easy to damage the nasal mucosa and cause epistaxis. At the same time, because the catheter cannot pull the uvula, the uvula still hinders endoscopic observation, which is not conducive to surgery and surgery. The operation is safe, and it...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the existing surgical instruments are easy to cause nasal mucosal damage and iatrogenic damage to the uvula, and to provide a surgical instrument with simple structure, convenient operation and no damage to the nasal mucosa and uvula. Soft palate retractor with David's gag

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