PORTABLE DRAG COMPRESSOR POWERED MECHANICAL VENTILATOR
First Claim
1. A rotary drag compressor ventilator device for ventilating the lungs of a mammalian patient, said device comprising:
- A. a rotary drag compressor comprising;
i. a housing having a gas inflow passageway and a gas outflow passageway;
ii. a rotor mounted within said housing, said rotor having a multiplicity of blades formed circularly therearound such that, when said rotor is rotated in a first direction, said blades will compress gas within said housing and expel said compressed gas out of said outflow passageway;
B. a controller apparatus to intermittently accelerate and decelerate the rotation of said rotor so as to deliver discrete periods of inspiratory gas flow through said outflow passageway.
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Accused Products
Abstract
A ventilator, device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stopped or decelerated to a basal flow level to permit the expiratory ventilation phase to occur. The ventilator device is small and light weight enough to be utilized in portable applications. The ventilator device is power efficient enough to operate for extended periods of time on internal or external batteries. Also provided is an oxygen blending apparatus which utilizes solenoid valves having specific orifice sizes for blending desired amounts of oxygen into the inspiratory gas flow. Also provided is an exhalation valve having an exhalation flow transducer which incorporates a radio frequency data base to provide an attendant controller with specific calibration information for the exhalation flow transducer.
96 Citations
116 Claims
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1. A rotary drag compressor ventilator device for ventilating the lungs of a mammalian patient, said device comprising:
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A. a rotary drag compressor comprising; i. a housing having a gas inflow passageway and a gas outflow passageway; ii. a rotor mounted within said housing, said rotor having a multiplicity of blades formed circularly therearound such that, when said rotor is rotated in a first direction, said blades will compress gas within said housing and expel said compressed gas out of said outflow passageway; B. a controller apparatus to intermittently accelerate and decelerate the rotation of said rotor so as to deliver discrete periods of inspiratory gas flow through said outflow passageway.
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2-96. -96. (canceled)
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97. A ventilator for ventilating lungs of a mammal, the ventilator comprising:
a compressor having a rotor mounted therein to compress and expel lung inspiratory gas by sequentially accelerated and decelerated rotation thereof, wherein said accelerated and decelerated rotation of the rotor occurs over a single breathing cycle.
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98. A lung ventilator, comprising:
a compressor to compress lung inspiratory gas by accelerated rotation of the rotor, and to expel lung inspiratory gas by decelerated rotation of the rotor, wherein said accelerated and decelerated rotation of the rotor occurs over a single breathing cycle.
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99. A compressor ventilator for ventilating lungs of a mammal, said ventilator comprising:
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a compressor including a gas outflow passageway; and a controller in communication with the compressor; wherein the controller accelerates and decelerates the compressor in correspondence with discrete periods of inspiratory gas flow through the gas outflow passageway, said discrete periods each corresponding to a discrete inspiratory cycle of a said mammal, the inspiratory gas flow being delivered to the lungs at a predetermined flow rate in at least one said discrete period and at a predetermined pressure in at least one said discrete period. - View Dependent Claims (101, 102, 103, 104, 105, 106, 107)
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100. A compressor ventilator device for delivering inspiratory gas flow to a mammal, said device comprising:
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a compressor including an intake port and an outflow port; an inspiratory gas flow passageway in fluid communication with the mammal and the outflow port of the compressor; a motor drivingly coupled to the compressor; and a controller in communication with the motor; wherein the controller accelerates the motor at a beginning of an inspiratory phase of a ventilation cycle of the mammal, regulates the motor to maintain a steady delivery of inspiratory at a middle of the inspiratory phase, and decelerates the motor at an ending of the inspiratory phase, thereby to deliver discrete periods of inspiratory gas flow at a predetermined flow rate and pressure. - View Dependent Claims (108, 109, 110, 111, 112, 113, 114, 115, 116)
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Specification