Tracheal tube
First Claim
1. A tracheal tube for placement in a middle or upper tracheal section of a patient, comprising:
- a high-volume, low-pressure fixing cuff having a shape to block a trachea beneath a glottis of the patient;
a respiratory cannula disposed through said fixing cuff;
a tampon-bladder disposed concentrically about said cuff, said tampon-bladder being made of flexible material and expansible by the influx of fluid, which when filled is different in shape from the shape of the cuff;
said tampon-bladder being made from a material such that a shape-preserving pressure is distributed throughout the subglottic region when said tampon-bladder is in a full condition, said material being a sufficient length so as to occupy the subglottic space completely when said tampon-bladder is in the full condition exerting an epithelium-sparing pressure on subglottic structures.
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Accused Products
Abstract
A tracheal tube by which the trachea is closed watertight by a fixation cuff blocking the trachea below the glottis, through which a ventilation cannula passes, and, situated cranially to it, above the cuff, a tampon-bladder made of flexible material expansible through the influx of fluid, which when filled differs in shape from the shape of the cuff, would represent an improvement by means of which a patient could be intubated in the gentlest way over a long period with minimal risk of infection. In the invention this is accomplished by situating the tampon-bladder immediately against the cuff and constructing it of foil-like material and so designing it that when fully distended in size it fills the subglottal space.
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Citations
21 Claims
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1. A tracheal tube for placement in a middle or upper tracheal section of a patient, comprising:
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a high-volume, low-pressure fixing cuff having a shape to block a trachea beneath a glottis of the patient;
a respiratory cannula disposed through said fixing cuff;
a tampon-bladder disposed concentrically about said cuff, said tampon-bladder being made of flexible material and expansible by the influx of fluid, which when filled is different in shape from the shape of the cuff;
said tampon-bladder being made from a material such that a shape-preserving pressure is distributed throughout the subglottic region when said tampon-bladder is in a full condition, said material being a sufficient length so as to occupy the subglottic space completely when said tampon-bladder is in the full condition exerting an epithelium-sparing pressure on subglottic structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A tracheal tube for placement in a middle or upper tracheal section of a patient, comprising:
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a fixing cuff having a shape, said fixing cuff being sized to block a trachea, or an identified diameter, beneath a glottis of the patient and fix the tracheal tube within the trachea; and
a tampon-bladder disposed concentrically about said fixing cuff with an inner side of said tampon-bladder facing said fixing cuff, said tampon-bladder being made of a flexible material and expansible by an influx of fluid, the tampon bladder when filled having a different shape different from the shape of said cuff, said material being such that a shape-preserving preserving pressure is distributed throughout the subglottic region when said tampon-bladder is in a full condition, said material being a sufficient length so as to occupy the subglottic space completely when said tampon-bladder is in the full condition exerting a epithelium-sparing pressure on subglottic structures. - View Dependent Claims (18)
the high-volume, low-pressure fixing cuff having, in a freely unfolded and non stretched state, a diameter exceeding the identified diameter of the trachea.
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19. A tracheal tube for placement in a middle or upper tracheal section of a patient, comprising:
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a fixing cuff sized to block a trachea beneath a glottis of the patient and fix the tracheal tube within the trachea, the fixing cuff, in an inflated state, having a diameter exceeding an identified diameter of the trachea; and
a tampon-bladder disposed concentrically about said fixing cuff, said tampon-bladder being made of a flexible material and expansible by an influx of fluid, said tampon-bladder being sized to completely occupy the subglottic space when filled within an epithelium-sparing pressure, said tampon-bladder being sized to occupy the subglottic space completely when in a full condition exerting the epithelium-sparing pressure on subglottic structures, wherein the tracheal tube is identified as being sized for the identified diameter of the trachea. - View Dependent Claims (20, 21)
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Specification