Endotracheal tube with inflatable cuffs
First Claim
Patent Images
1. An endotracheal tube adapted for insertion through the mouth of a patient and into the patient'"'"'s trachea comprising:
- elongated tube means having a proximal end and a distal end portion which terminates in a tip, said tube means defining a central ventilation passage;
first inflatable means encircling said tube means between said proximal end and tip for generally centrally locating and sealing the tube means in the trachea upon the inflating thereof;
non-occlusive second inflatable means spaced from said first inflatable means and encircling said tube means at said distal end portion in close proximity to said tip for preventing contact between said tube means tip and the trachea upon the inflating of said second inflatable means, said second inflatable means having an inflated diameter which is less than the inflated diameter of said first inflatable means;
first inflating means for selectively inflating and deflating said first inflatable means; and
second inflating means for selectively inflating and deflating said second inflatable means whereby upon the positioning of said tube means in the trachea of a patient and inflating of said first and second inflatable means the central axis of the patient'"'"'s trachea is generally approximately coaxial with the axis of said tube means at said distal end portion.
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Accused Products
Abstract
An endotracheal tube for artificial ventilation employs a primary cuff and a secondary cuff for locating and positioning the tube in the trachea of a patient. The secondary cuff employs a balloon sleeve which is located in close proximity to the distal end of the tube. The secondary balloon sleeve is sealed against the tube in a reverse folded configuration. The tube wall includes a number of lumens which may be employed for various auxiliary functions.
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Citations
15 Claims
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1. An endotracheal tube adapted for insertion through the mouth of a patient and into the patient'"'"'s trachea comprising:
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elongated tube means having a proximal end and a distal end portion which terminates in a tip, said tube means defining a central ventilation passage; first inflatable means encircling said tube means between said proximal end and tip for generally centrally locating and sealing the tube means in the trachea upon the inflating thereof; non-occlusive second inflatable means spaced from said first inflatable means and encircling said tube means at said distal end portion in close proximity to said tip for preventing contact between said tube means tip and the trachea upon the inflating of said second inflatable means, said second inflatable means having an inflated diameter which is less than the inflated diameter of said first inflatable means; first inflating means for selectively inflating and deflating said first inflatable means; and second inflating means for selectively inflating and deflating said second inflatable means whereby upon the positioning of said tube means in the trachea of a patient and inflating of said first and second inflatable means the central axis of the patient'"'"'s trachea is generally approximately coaxial with the axis of said tube means at said distal end portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An endotracheal tube adapted for insertion through the mouth of a patient and into the patient'"'"'s trachea comprising:
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elongated tube means having a proximal end and a distal end portion which terminates in a tip, said tube means defining a central ventilation passage and a plurality of longitudinally extending conduits; primary inflatable means comprising a primary sleeve interiorly communicating with one of said conduits and encircling said tube means between said proximal end and tip for generally centrally locating and sealing the tube means in the trachea upon inflation thereof; and non-occlusive secondary inflatable means spaced from said primary inflatable means, said secondary inflatable means comprising a secondary sleeve interiorly communicating with another of said conduits and encircling said tube means at said distal end portion in close proximity to said tip for generally centering said tube means in the trachea upon inflation thereof, said secondary sleeve having an inflated diameter which is less than the inflated diameter of said primary sleeve, said secondary sleeve also having two spaced end portions and two opposed side surfaces, one of said secondary sleeve end portions being sealed against said tube means on the first of said side surfaces thereof and the second said end portion of said secondary sleeve being sealed against said tube means on the second side surface thereof, said one end portion of said secondary sleeve being located in close proximity to said tip of said distal end portion of said tube means whereby upon positioning said tube means in the trachea of a patient and the inflating of said primary and secondary inflatable means sleeves the central axis of the trachea will be generally approximately coaxial with the axis of said tube means at said distal end portion thereof. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification