Oropharynx channel for painless gastroscopy

The oropharynx channel comprises a bite block and a bent tube, the bent tube is integrally formed and communicated with the rear end of the bite block, the interior of the bite block and the interior of the bent tube, a mouth protector is arranged on the periphery of the bite block, a square hole ma...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	REN JIAJIN, LIU KUN, LI WENCHAO, LU CHENGRUN, CHAI XIANGGUO, HE GUOPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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