Mechanical ventilator system
First Claim
1. A mechanical ventilator system, comprising:
- a negative pressure vortex generator;
means for measuring oxygen saturation in a patient'"'"'s blood;
an air-oxygen blender for outputting oxygen to the patient;
means for delivering the output from the air-oxygen blender to the patient, the means for delivering the output being in fluid communication with the negative pressure vortex generator and the air-oxygen blender, the means for delivering the output from the air-oxygen blender to the patient being actuated during the patient'"'"'s inhalations and being idle during the patient'"'"'s exhalations;
means for controlling a fraction of inspired oxygen in the output from the air-oxygen blender, the means for controlling being in communication with the means for measuring oxygen saturation in a patient'"'"'s blood; and
means for controlling positive end-expiratory pressure of expired air from the patient, the means for controlling positive end-expiratory pressure being in communication with the negative pressure vortex generator.
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Abstract
The mechanical ventilator system is a compact and portable artificial respiration system. A negative pressure vortex generator delivers an FiO2 mix from an air-oxygen blender to the patient during the patient'"'"'s inhalations, but remains idle during the patient'"'"'s exhalations. Exhaust gases generated by the patient are released through an exhaust gas valve. During operation, the patient'"'"'s oxygen saturation level is measured by an infrared pulse-oxygen probe, and an FiO2 autoregulator is in communication with the probe to receive oxygen saturation level signals. The FiO2 autoregulator is coupled with the air-oxygen blender to control the oxygen proportion of the FiO2 mix. An automatic pressure flow sensor is fluidly coupled with the patient'"'"'s airway to control actuation of the negative pressure vortex generator. The automatic flow sensor is coupled with a controller, which actuates a vortex generator trigger circuit in communication with the vortex generator.
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Citations
20 Claims
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1. A mechanical ventilator system, comprising:
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a negative pressure vortex generator; means for measuring oxygen saturation in a patient'"'"'s blood; an air-oxygen blender for outputting oxygen to the patient; means for delivering the output from the air-oxygen blender to the patient, the means for delivering the output being in fluid communication with the negative pressure vortex generator and the air-oxygen blender, the means for delivering the output from the air-oxygen blender to the patient being actuated during the patient'"'"'s inhalations and being idle during the patient'"'"'s exhalations; means for controlling a fraction of inspired oxygen in the output from the air-oxygen blender, the means for controlling being in communication with the means for measuring oxygen saturation in a patient'"'"'s blood; and means for controlling positive end-expiratory pressure of expired air from the patient, the means for controlling positive end-expiratory pressure being in communication with the negative pressure vortex generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mechanical ventilator system, comprising:
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means for measuring oxygen saturation in a patient'"'"'s blood; an air-oxygen blender for outputting oxygen to the patient; means for delivering the output from the air-oxygen blender to the patient, the means for delivering the output being in fluid communication with the air-oxygen blender, the means for delivering the output being actuated during the patient'"'"'s inhalations and being idle during the patient'"'"'s exhalations; a stepper motor coupled with the air-oxygen blender for controlling a fraction of inspired oxygen in the output from the air-oxygen blender, the stepper motor being in communication with the means for measuring oxygen saturation in a patient'"'"'s blood; and means for displaying the oxygen saturation of the patient'"'"'s blood. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification