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5499179 |
Decompression data display devices
A decompression data display device which calculates during a diver's dive the partial pressure of an inert gas in each of the tissues of the diver's body with the tissues having different half...
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5495848 |
Monitoring system for delivery of therapeutic gas
An apparatus for monitoring and controlling the flow of a therapeutic gas to a patient. The apparatus includes a gas source, a flow management module and an electronics module. The flow management...
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5494028 |
Medical ventilator
A medical ventilator having a valve which controls the flow of gas from a pressurized gas source to a patient for inhalation. Flow through the valve is choked and pressure upstream of the valve is...
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5492113 |
Sleep apnea treatment apparatus having multiple ramp cycles
Improved methodology and apparatus for the treatment of sleep apnea through (1) application of alternating high and low level positive airway pressure within the airway of the patient with the high...
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5492110 |
Switched alert circuit for fireman's breathing system
Safety equipment is described for use by firemen which includes an air tank (42, FIG. 2), a harness (14), a face mask (16), and a PASS (personal alert safety system 20), which assures that the PASS...
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5485833 |
Breath exposure synchronizer
Breath Exposure Synchronizer senses respiratory activity and indicates when it is the proper time to expose X-ray film to prevent blurring of radiographs due to voluntary motion of breathing. It...
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5485850 |
Monitor of low pressure intervals with control capabilities
A monitor that provides data obtained from the detection of very low positive, negative, or differential pressures, and can be used to control devices in health care and industry. An example of its...
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5479920 |
Breath actuated medicinal aerosol delivery apparatus
An apparatus for delivering medicinal aerosol on-demand during patient inhalation wherein delivery of aerosol from a nebulizer (22) is optimized by synchronizing delivery to the inspiration of a...
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5457284 |
Interactive dive computer
An interactive apparatus for use by a scuba diver to provide for diver control of a specified dive-related parameter. The diver enters into the apparatus a desired parameter value, such as air...
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5443061 |
Apparatus for providing a breathing gas with an overpressure and process of controlling such apparatus installation
The turbine which generates overpressure for a breathing gas is controlled by detecting recurring variations in the operation of the turbine and correspondingly modifying the control signal which...
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5443059 |
Ultrasonic atomizer with a metering unit
A device for generating an aerosol in the course of a respiration gas line, which leads from a respirator to a patient for the patient's artificial respiration. The dead space volume existing...
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5438980 |
Inhalation/exhalation respiratory phase detection circuit
An apparatus (10) for controlling the pressure of a respiratory gas delivered to a patient includes a phase detection circuit (24) for determining the inhalation and exhalation phases of the...
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5433193 |
Breathing gas delivery method and apparatus
An improved methodology and apparatus for delivery of breathing gas such as fop the treatment of sleep apnea through application of alternating high and low level positive airway pressure within...
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5429123 |
Process control and apparatus for ventilation procedures with helium and oxygen mixtures
A process is provided for controlling a ventilation procedure wherein a heliox ventilation system passes a breathing medium through at least a portion of a patient's pulmonary pathways. In this...
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5423313 |
Respirator intended for connection to human or animal airways
This invention comprises a respirator intended for connection to human or animal airways. A first device for supplying and receiving respiratory gas to and from the airways so that the lungs can be...
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5421340 |
Compact, portable critical care unit for hyperbaric and recompression chambers
The advanced care system for use in a hyperbaric chamber is a self-contai, rapidly transportable unit which contains a ventilator, patient suction, and vital signs monitor. It was developed to...
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5419315 |
Intrapulmonary delivery of hormones
A method of treating human patients is provided by the intrapulmonary delivery of a pharmaceutically active hormone formulation. The formulation is automatically released from a hand-held,...
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5413110 |
Computer gated positive expiratory pressure method
The computer gated positive expiratory pressure method alters pressure in a patient breathing pathway in a respiratory ventilator during specified periods of a patient's heart cycle. Heartbeats of...
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5400777 |
Ventilator
A ventilator to be connected to the airways of a human or an animal includes several functional units, each functional unit being controlled and/or supervised by a separate microprocessor. At least...
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5400778 |
Method and device for reduction of rebreathing of gas from dead space
In a method and apparatus for reducing rebreathing of gas from the dead space (i.e., the volume of used gas, which during expiration has filled the airways and is brought back to the alveus at the...
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5398682 |
Method and apparatus for the diagnosis of sleep apnea utilizing a single interface with a human body part
A device for diagnosing sleep apnea by identifying desaturation and resaturation events in oxygen saturation of a patient's blood. The slope of the events is determined and compared against various...
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5398676 |
Portable emergency respirator
A portable emergency respirator which contains an electrical power supply, a source of compressed air, and a switch which allows one to produce three separate different types of pneumatic outputs...
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5390666 |
System and method for flow triggering of breath supported ventilation
The method for flow triggering breath supported ventilation is accomplished by providing a system comprising a source of a predetermined, preinspiratory, constant flow of breathing gas and...
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5388575 |
Adaptive controller for automatic ventilators
An automatic controller utilizes a pulse oximeter signal to regulate the oxygen mixture output, peak expiratory end pressure, and inspiratory ventilation time from a positive pressure respiratory...
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5385142 |
Apnea-responsive ventilator system and method
Patients are ventilated responsive to a temporary cessation of breathing by monitoring the spontaneous breaths of the patient and providing a series of mechanical breaths to the patient in the...
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5377671 |
Cardiac synchronous ventilation
A method and apparatus for providing circulatory and respiratory assistance in a patient. The method includes the steps of determining the onset and duration of at least one portion of the cardiac...
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5365922 |
Closed-loop non-invasive oxygen saturation control system
An adaptive controller for delivering a fractional amount of oxygen to a patient. The controller utilizes an oximeter coupled by a non-invasive sensor to the patient for measuring the blood...
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5363842 |
Intelligent inhaler providing feedback to both patient and medical professional
The present invention detects how much air is inhaled through the inhaler with what time course (including such derived measurements as how much volume is inspired within the bounds of a given flow...
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5361753 |
Method of measuring and regulating the pressure in the sealing cuff of a tracheal tube and apparatus for implementing the method
A processor based method of measuring and regulating the pressure in the inflatable sealing cuff of a tracheal tube introduced into the trachea of a patient, for generating a constant contact...
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5359999 |
Asynchronous cycling of mechanical ventilators
A system is disclosed for the use of two mechanical ventilators, wherein one of the ventilators is used to ventilate both lungs of a patient and the second ventilator is used to inflate a...
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5353788 |
Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment
A system and method for controlling and monitoring externally administered breathing air pressure in a series of cycles. During each cycle, the breathing air pressure starts at a base value and is...
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5351188 |
Electronic depth meter
The respective partial pressures of an inert gas in the tissues of a human body different in saturation half-time are calculated from the sensed ambient pressure during diving. The respective...
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5345930 |
Method and apparatus for assisting expulsional movement of pulmonary secretions via supramaximal flows
There is described a non-invasive device designed to assist expectoration pulmonary secretions in humans, particularly in those whose natural exhalation and natural coughing ability are impaired....
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5339807 |
Exhalation valve stabilizing apparatus
The movements of an exhalation valve are damped at a variable rate to control pressure oscillations within a ventilation system. The exhalation valve is damped as a function of its velocity at a...
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5335654 |
Method and apparatus for continuous adjustment of positive airway pressure for treating obstructive sleep apnea
In the treatment of obstructive sleep apnea, a CPAP flow generator is employed to direct air to a nasal mask fitted to a patient. The airflow from the generator is monitored, and the flow and/or...
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5323772 |
Respirator having an inspiration gas flow controlled by the expiration gas flow
In a respirator having an inspiration gas flow controlled by the expiration gas flow, in order to avoid triggering difficulties, particularly in the neonatal respiration therapy, the respirator is...
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5320093 |
Rapid anesthesia emergence system using closed-loop PCO.sub.2 control
A system is disclosed for rapidly restoring ventilatory drive to an anesthetized patient after surgery. The end-expired carbon dioxide partial pressure is used as feedback to determine the amount...
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5315988 |
Reactive, closed-circuit underwater breathing apparatus
This invention comprises a tunable underwater breathing apparatus (UBA) in hich the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the...
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5316009 |
Apparatus for monitoring respiratory muscle activity
A respiratory muscle activity monitoring apparatus is provided with a pressure sensor for detecting pressure in an air passage connecting a lung ventilator and the airway system of a patient and a...
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5313937 |
Leak compensation method and apparatus for a breathing system
An improved methodology and apparatus for the treatment of sleep apnea through application of alternating high and low level positive airway pressure within the airway of the patient with the high...
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5307795 |
Medical ventilators
A medical ventilator comprises a ventilator duct having an inlet for respiratory fresh gas. The pressure at which the respiratory fresh gas is supplied to the patient is determined by a driving jet...
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5303700 |
Method for detecting the respiratory phases of a patient during an assisted ventilating process
The invention relates to a method for recognizing the respiratory phases of a patient for controlling a ventilating apparatus. The time-dependent trace of a signal, which represents the respiratory...
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5303699 |
Infant ventilator with exhalation valves
A ventilator device for artificial ventilation use in infant and pediatric wards, and which may be adapted for use with adult patients as well. The ventilator device comprises a pressure control...
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5287851 |
Endotracheal tube connector with integral pneumotach transducer
A pneumotach gas flow transducer having strain gauge pressure transducers disposed therein for disposition in a selected element or component of a ventilatory circuit. A differential pressure is...
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H001282 |
Fluidic volume-cycled respirator
A fluidic, volume-cycled respirator circuit comprising a fluidic flowmeter, a tidal volume selection controller and an inlet valve. The flowmeter is connected to the controller through a...
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5265594 |
Apparatus for regulating the flow-through amount of a flowing medium
An apparatus, such as a ventilator, for regulating the flow-through amount of a flowing medium, such as a gas, has a valve with a variable orifice operated by a first regulating circuit with...
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5265595 |
Mask for breath analysis
An oral respiratory mouth mask for breath-by-breath ventilatory measurements on humans constructed of silicone or like material. The mouth mask has a curved face sealing flange adapted to sealably...
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5261397 |
Methods and apparatus for measuring infant lung function and providing respiratory system therapy
Methods and apparatus for determining respiratory system compliance (C rs ) and resistance (R rs ) are disclosed. The present invention provides apparatus whereby an airflow is introduced to a...
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5259373 |
Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds
An apparatus and method for facilitating the respiration of a patient detects patient airway sounds and resolves these sounds into audio component bands whereupon an analysis is performed to...
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5251632 |
Tissue oxygen measuring system
A tissue oxygen measuring system enabling the automatic and continuous measurement of diagnosing items including cerebral blood flow, cerebral blood volume, and response of cerebral blood volume in...
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