Apparatus for controlling the pressure in a tracheal cuff
First Claim
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1. Apparatus for regulating the fluid pressure within a conventional tracheal cuff, so as to inflate or deflate the cuff, coupled to a conventional automatic respirator which has inhalation and exhalation cycles, the respirator having associated therewith a source of pressurized fluid, the respirator providing a rapid pressure increase which is coordinated with the onset of inhalation, the regulating apparatus comprising;
- adjustable pressure regulator means, said regulator means adapted to be in communication with the source of pressurized fluid associated with the respirator, said regulator means controlling the pressure of the pressurized fluid, said regulator means also setting the desired fluid pressure for inflation of a tracheal cuff and the desired fluid pressure for cuff deflation;
gate means, said gate means having multiple fluid passageways which may be opened or closed, said gate means having multiple ports which receive and discharge pressurized fluid, said gate means being coupled to said pressure regulator means and including connector means for coupling said gate means to a tracheal cuff associated with a respirator whereby said gate means may place said adjustable pressure regulator means in communication with the cuff when the respirator is in the inhalation cycle;
gate control means, said gate control means including connector means whereby said gate means may be coupled to the respirator, said gate control means controlling the opening and closing of said passageways of said gate means in response to the cycling of the respirator, said gate control means being in communication with said adjustable pressure regulator means; and
cuff deflator control means, said deflator control means being in communication with said adjustable pressure regulator means, said deflator control means including connector means whereby said deflator control means may be placed in communication with the cuff through an open passageway of said gate means when the respirator is in the exhalation cycle, said deflator control means thereby causing adjustment of the fluid pressure in the cuff from said inflating pressure to said deflating pressure and maintaining said deflating pressure when the respirator is in the exhalation cycle.
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Abstract
An apparatus for controlling the pressure in a tracheal cuff used with a tracheal tube to seal the walls of the trachea with respect to the tube, the cuffed tracheal tube being of the type used with an automatic respirator which cycles between an inhalation mode and an exhalation mode.
102 Citations
24 Claims
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1. Apparatus for regulating the fluid pressure within a conventional tracheal cuff, so as to inflate or deflate the cuff, coupled to a conventional automatic respirator which has inhalation and exhalation cycles, the respirator having associated therewith a source of pressurized fluid, the respirator providing a rapid pressure increase which is coordinated with the onset of inhalation, the regulating apparatus comprising;
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adjustable pressure regulator means, said regulator means adapted to be in communication with the source of pressurized fluid associated with the respirator, said regulator means controlling the pressure of the pressurized fluid, said regulator means also setting the desired fluid pressure for inflation of a tracheal cuff and the desired fluid pressure for cuff deflation; gate means, said gate means having multiple fluid passageways which may be opened or closed, said gate means having multiple ports which receive and discharge pressurized fluid, said gate means being coupled to said pressure regulator means and including connector means for coupling said gate means to a tracheal cuff associated with a respirator whereby said gate means may place said adjustable pressure regulator means in communication with the cuff when the respirator is in the inhalation cycle; gate control means, said gate control means including connector means whereby said gate means may be coupled to the respirator, said gate control means controlling the opening and closing of said passageways of said gate means in response to the cycling of the respirator, said gate control means being in communication with said adjustable pressure regulator means; and cuff deflator control means, said deflator control means being in communication with said adjustable pressure regulator means, said deflator control means including connector means whereby said deflator control means may be placed in communication with the cuff through an open passageway of said gate means when the respirator is in the exhalation cycle, said deflator control means thereby causing adjustment of the fluid pressure in the cuff from said inflating pressure to said deflating pressure and maintaining said deflating pressure when the respirator is in the exhalation cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification