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Triangular intratracheal tube

  • US 5,372,131 A
  • Filed: 04/28/1992
  • Issued: 12/13/1994
  • Est. Priority Date: 04/28/1992
  • Status: Expired due to Fees
First Claim
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1. An intratracheal tube for ventilating lungs through a glottis and through the trachea between the vocal cords and the carina, wherein the glottis has a crossectional shape which is substantially shaped as an isosceles triangle having an apex on the anterior, ventral side, comprising:

  • a ventilation lumen between the ambience and a selected position above the carina;

    an inflatable cuff system connected to said ventilation lumen for sealing the annulus between said ventilation lumen and the inside of the trachea when said cuff is inflated;

    a lumen located proximal to said ventilation lumen and substantially located on the anterior side of said ventilation lumen through the apex of the triangular shaped glottis to maximize the crossectional area of the interior of said lumen, wherein said lumen has a first end at the ambience and a second end positioned to remove fluid from the trachea above the cuff; and

    a sheath for enclosing said ventilation lumen and said lumen proximal to said ventilation lumen, wherein the crossection of said sheath perpendicular to said ventilation lumen is substantially triangular, and wherein the location of said lumen anterior of said ventilation lumen maximizes the crossectional area of the interior of said lumen while minimizing contact between said sheath and the glottis.

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