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Mandibular protracting oral intubating airway

机译:下颌延长口腔插管气道

摘要

A mandibular protracting oral intubating airway has a rigid main body with a mouthpiece portion at the forward end. The mouthpiece portion has an annular front flange and a bite portion extending a short distance rearwardly therefrom which is generally oval-shaped in transverse cross section and has an annular rear flange at the rear end thereof. A flat, generally C-shaped tongue retractor portion extends rearwardly from the rear flange of the bite portion and curves downwardly. A resilient annular sleeve encircles the bite portion between the front and rear flanges and has a series of longitudinally spaced generally arcuate grooves extending transversely across its exterior top and bottom surfaces. When properly positioned in the mouth of a patient, the upper and lower teeth are retained in the grooves of the resilient sleeve with the mandible protracted maximally forward relative to the maxilla. This, and the underside of the downwardly curved tongue retractor hold the tip and most of the tongue forward and prevent it from falling backward and obstructing the airway. After the device has been installed, there is no need for continuous manual chin lift or jaw thrust to maintain an open oral airway. The mouthpiece portion functions as a bite block and the oval-shaped opening through the bite portion functions as an intubation guide to facilitate insertion of an endoscope and related medical instruments, such as a fiberoptic intubating stylet with an attached endotracheal tube.
机译:下颌延长口腔插管气道具有刚性主体,该主体在前端具有烟嘴部分。烟嘴部分具有环形前凸缘和从其向后延伸短距离的咬合部分,该咬合部分的横截面通常为椭圆形,并且在其后端具有环形后凸缘。平坦的大致C形的舌头牵开器部分从被咬部分的后凸缘向后延伸并向下弯曲。弹性环形套筒环绕前凸缘和后凸缘之间的咬合部分,并具有一系列纵向间隔开的,大致弓形的凹槽,该凹槽在其外顶表面和底表面上横向延伸。当正确地定位在患者的口腔中时,上下牙齿将保留在弹性套筒的凹槽中,下颌骨相对于上颌骨最大程度地向前伸出。这以及向下弯曲的舌头牵开器的底侧将尖端和大多数舌头向前,并防止其向后掉落并阻塞气道。安装设备后,无需连续手动下巴提拉或下颌推力来保持口腔开放。咬嘴部分用作咬合块,并且穿过咬合部分的椭圆形开口用作插管引导件,以促进内窥镜和相关医疗器械的插入,例如具有附接的气管插管的光纤插管探针。

著录项

  • 公开/公告号US5590643A

    专利类型

  • 公开/公告日1997-01-07

    原文格式PDF

  • 申请/专利权人 FLAM;GARY H.;

    申请/专利号US19950373065

  • 发明设计人 GARY H. FLAM;

    申请日1995-01-17

  • 分类号A61C5/14;A61M16/00;A62B9/06;

  • 国家 US

  • 入库时间 2022-08-22 03:10:49

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