Salter Labs

James Chua

Peter W Salter

James N Curti

Laurence McGann

Walter R Van Horn

Duane D Kazal

Francis J Kelly

Roy Yasuo Fujimoto

Robert Toshiaki Wada

James M Davenport

Kyle L Adriance

Barry Crandall

Phuoc H Vo

A nasal cannula having a face piece including first and second nares which each communicate with a respective nostril of a patient. A septum divides the face piece into first and second flow paths such that the first flow path communicates with the first nare and the second flow path communicates with the second nare. A leading end of the first nare is configured to form a fluid barrier within a first nostril and facilitate only supplying an insufflation gas, via the first flow path, to the patient and prevent exhausting any exhaust gas, of the patient, through the first nostril. A leading end of the second nare is configured to facilitate collecting some of the exhaust gas, from the patient, via the second flow path as well as exhausting a remainder of the exhaust gas out through a second nostril of the patient.

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A nasal cannula for supplying a respiratory gas to a patient and a method of treating a patient with sleep disorder. The nasal cannula comprises a pair of spaced apart supply lines which each have a head at one end thereof with a discharge opening located therein. The opposite end of each supply line is connectable to a high flow respiratory gas source. Each head is sized to be snugly received and retained within one of the nasal cavities of the patient while forming a sufficient leakage passage, between a portion of inwardly facing nasal cavity skin of a patient and a portion of an exterior surface of the head, to facilitate exhausting of any excess respiratory gas supplied to the patient through the leakage passage and also facilitate inhalation of any room air required in excess of the respiratory gas to be supplied to the patient.

Respiratory therapy system including a nasal cannula assembly

A method of monitoring breathing of a patient with a nasal cannula. The method comprising the steps of forming the nasal cannula with at least one nare, and at least one nare having a primary inlet/outlet opening formed in a remote end thereof. Coupling the nasal cannula to a detection device for monitoring breathing characteristics of the patient while the patient is sleeping. Detecting breathing characteristics of the patient, while the patient is sleeping, via at least the primary inlet/outlet opening of the nare and sending the detected breathing characteristics of the patient to detection device for evaluation.

Nasal cannula for acquiring breathing information

A pressure sensing device for coupling to a cannula and receiving respiratory breathing information from a patient to be monitored. The pressure sensing device comprising an exterior housing accommodating a snore detection circuit which processes information and outputs a signal indicative; an airflow detection circuit which processes information and outputs a signal indicative thereof; and an internal test circuit for testing an integrity of the airflow and snore detection circuits prior to use of the pressure sensing device to ensure that both circuits are operational. An input port for pressure sensing device extends from the housing of the pressure sensing device so as to space a connector, for the cannula, a sufficient distance away from the bottom surface whereby the bottom surface will always remain flush with and in constant and continuous intimate contact with a support surface for the pressure sensing device.

Pressure sensing device with test circuit

This invention is a device () for inspiration of a mist from a nebulizer, having an inlet connector () adapted to engage an outlet port of a nebulizer, a hollow mouthpiece element () for insertion into a patient's mouth; a conduit () forming a fluid connection between the inlet connector, and the hollow mouthpiece element. An exhaust valve () is provided for removing expiratory gases which are exhaled into the mouthpiece element to the ambient atmosphere via an exhaust/positive expiratory pressure (PEP) valve (). The PEP valve is positioned on the conduit between the inlet connector, and the mouthpiece element; and a filter housing () containing a filter () for filtering the exhaled gases passing from the exhaust/PEP valve.

Nebulizer mouthpiece and accessories

A nasal cannula for insufflating a patient with oxygen through one nare of the cannula and separately analyzing the exhaled gases from the patient by drawing the sampling of the exhaled gas from the other nare of the cannula into a conventional carbon dioxide analyzer. A further addition of holes or vents in the nares of the cannula are provided on both the interior and posterior of one or both nares in order to substantially reduce or eliminate the incidence of occlusion of the tip of the carbon dioxide sampling nare.

Nasal cannula

This invention is a device ( ) for inspiration of a mist from a nebulizer, the device comprising an inlet connector ( ) adapted to engage an outlet port of a nebulizer; a hollow mouthpiece element ( ) for insertion into a patient's mouth; a conduit ( ) forming a fluid connection between the inlet connector, and the hollow mouthpiece element; an exhaust valve ( ) for removing expiratory gases which are exhaled into the mouthpiece element to the ambient atmosphere via the exhaust/positive expiratory pressure (PEP) valve ( ) positioned on the conduit between the inlet connector, and the mouthpiece element; and a filter housing ( ) containing a filter ( ) for filtering the exhaled gases passing from the exhaust/PEP valve.

An apparatus for insufflating a treating gas into a patient and for measuring a carbon dioxide content exhaled by the patient includes a hollow body with a partitioning wall separating the body into inhalation and exhalation manifolds. Two hollow prongs have coaxial openings close to the body which allow gas exchange for breathing and carbon dioxide measuring purposes. The holes are of a size such that suction drawn through the holes is limited while still allowing accurate gas analysis.

A mouth piece exhalation valve for a nebulizer or breathing circuit. The nebulizer has an internal passageway containing an offset causing an inspiration mist flow to bypass the exhaust valve without impingement. The offset includes a deflector which aids in the deflection of the inspiration mist flow away from the exhaust valve. The deflector is also utilized for directing the exhaust flow upon expiration by a patient through the exhaust valve. The exhaust valve design includes a flap or disc having leaves formed by peripheral arcuate cuts to facilitate the opening and the closing of the leafs in accordance with the expiration and inhalation of a patient respectively. The cuts also aid in the re-introduction of any accumulation of fluid on the external surface of the disc and valve back into the inspirational cycle so as to minimize any external buildup of fluid.

Mouthpiece for a nebulizer

A pilot valve permits the delivery of relatively high pressure gas on the order of 30-50 psi directly to the valve. A poppet valve is positioned in the outlet gas delivery tube of the valve housing and has a valve stem which is spring loaded to maintain the valve in the closed position and a high pressure gas is supplied to the poppet valve. A trigger gas in the form of a low pressure gas is supplied to the pilot valve to cause the pilot valve to open. A poppet valve opening mechanism responds to the presence of the trigger gas to move the valve stem of the poppet valve to open the poppet valve and to permit the high pressure gas to pass through the poppet valve and through the pilot valve. A preferred opening mechanism is a diaphragm which moves in response to the trigger gas and causes a backup disk to also move and force a piston against the valve stem of the poppet valve.

Control valve for gas supply to a nebulizer

An intermittent gas-insufflation apparatus insufflates a quantity of the gaseous fluid into an entrance of a respiratory system of a breathing patient during an exhalation interval of an immediate breathing cycle and into a subsequent inhalation interval of a successive breathing cycle. The intermittent gas-insufflation apparatus includes a valve assembly, a sensor and a controller. The valve assembly actuates between a closed state to prevent the gaseous fluid from flowing from a source of gaseous fluid to the patient and an opened state to establish gaseous fluid flow to the patient. The sensor detects changes in breathing pressure of the patient throughout the immediate breathing cycle and to generates sensor signals characteristic of the changes in the breathing pressure thereof. The controller receives and processes the sensor signals during either the inhalation interval of the immediate breathing cycle, the exhalation interval of the immediate breathing cycle or both and is responsive within the exhalation interval of the immediate breathing cycle to the sensor signals to actuate the valve assembly into the opened state so that the gaseous fluid flows from the source of gaseous fluid to the entrance into the respiratory system of the patient during the exhalation interval of the immediate breathing cycle and into the subsequent inhalation interval of the successive breathing cycle. Methods are also described for various exemplary embodiments of the present invention and for maintenance of blood-oxygen concentration for a patient receiving oxygen from a supplemental oxygen delivery system.

Intermitten gas-insufflation apparatus and method therefor

Intermittent gas-insufflation apparatus

Method for intermittent gas-insufflation

A breathing circuit apparatus used with a nebulizer device that generates an aerosol is adapted for use by a user for inhaling the aerosol through the user's nose and/or mouth and thereafter exhaling exhalation gas through the breathing circuit apparatus. The breathing circuit apparatus includes a container, an inlet valve, an outlet valve and a user connection port. The container defines an interior chamber therein and is coupled to the nebulizer device. The inlet valve is connected to the container and includes an air inlet port for one-way air flow of ambient air into the interior chamber. The inlet valve moves between a closed condition to prevent the ambient air from entering into the interior chamber and an opened condition to permit the ambient air to enter into the interior chamber. The outlet valve is connected to the container and includes a gas exhalation port for one-way gas flow of the exhalation gas. The outlet valve moves between a closed state to prevent exhalation gas from exiting the interior chamber and an opened state to permit exhalation gas to exit from the interior chamber. The user connection port is in fluid communication with the interior chamber and the user's nose and/or mouth when the user inhales and exhales. As the user inhales the aerosol from the interior chamber, the inlet valve is opened and the outlet valve is closed. As the user exhales, the inlet valve is closed and the outlet valve is opened to allow the exhalation gas to exit the interior chamber and discharge into the exterior ambient air.

Growing community of inventors

Bakersfield, CA, United States of America

James Chua