Patents by Inventor James Chua

James Chua has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9814854
    Abstract: 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.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 14, 2017
    Assignee: Salter Labs
    Inventor: James Chua
  • Publication number: 20140276169
    Abstract: A nasal cannula which comprises a face piece comprising 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 of exhaust gas, of the patient, through the first nostril of the patient. 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.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: SALTER LABS
    Inventor: James CHUA
  • Patent number: 8631799
    Abstract: 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.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: January 21, 2014
    Assignee: Salter Labs
    Inventors: James M. Davenport, James N. Curti, Peter W. Salter, James Chua, Barry Crandall
  • Publication number: 20110125052
    Abstract: A nasal cannula, for supplying a respiratory gas to a patient, comprising: a pair of spaced apart supply lines which each have a head at one end thereof with a discharge opening therein. The opposite end of each supply line is connectable to a 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.
    Type: Application
    Filed: January 23, 2009
    Publication date: May 26, 2011
    Applicant: SALTER LABS
    Inventors: James M. Davenport, James N. Curti, Peter W. Salter, James Chua, Barry Crandall
  • Publication number: 20100168600
    Abstract: A temperature sensing device and method of using the same, for detecting breathing of a patient. The temperature sensing device comprises a sensor body contour for supporting the temperature sensing device on an upper lip of a patient and preventing undesired movement thereof and at least one temperature sensor being supported by the sensor body. The sensor body spaces the temperature sensor(s) from the skin of a patient, during use, so that a remote end of the at least one temperature sensor can be positioned adjacent at least one of a nasal cavity and a mouth of the patient for detecting breathing of the patient. The sensor body is preferably curved both upwardly and rearwardly with respect to planes extending through the sensor body.
    Type: Application
    Filed: December 24, 2009
    Publication date: July 1, 2010
    Applicant: SALTER LABS
    Inventors: Kyle ADRIANCE, James CHUA, James N. CURTI, Eric C. LAND
  • Publication number: 20100168601
    Abstract: A combined cannula and temperature sensing device for detecting breathing of a patient. The cannula comprising a cannula body defining at least one internal flow chamber therein, at least one tube being connected to the cannula body and communicating with the internal flow chamber, a pair of nasal prongs communicating with the internal flow chamber, and the cannula body having retaining mechanism for releasably attaching the temperature sensing device to the cannula. The temperature sensing device comprising a sensor body, at least one temperature sensor being supported by the sensor body, and the sensor body releasably engaging with the retaining mechanism of the cannula for positioning the at least one temperature sensor adjacent at least one of a nasal cavity and a mouth of the patient for detecting breathing of the patient.
    Type: Application
    Filed: December 24, 2009
    Publication date: July 1, 2010
    Applicant: SALTER LABS
    Inventors: Kyle ADRIANCE, James CHUA, James N. CURTI, Eric C. LAND
  • Publication number: 20100128453
    Abstract: A tuner is disclosed which overcomes a problem related to leakage currents within a tuner associated with increased miniaturization. The tuner includes an oscillator and a cover. The cover includes a barrier region, typically in the form of a slot or an air gap, which impedes the propagation of leakage currents, in the form of eddy currents induced from the oscillator, along the cover from the oscillator region to other components in the tuner, and in particular to the input or output connectors.
    Type: Application
    Filed: April 29, 2008
    Publication date: May 27, 2010
    Applicant: NXP B.V.
    Inventors: Yeow Teng Toh, Kam Choon Kwong, James Chua, Swee Hua Heng
  • Publication number: 20100113956
    Abstract: A nasal cannula for monitoring symptoms of sleep apnea and hypopnea, including an elongated main body having a main body chamber and first and second nares to be received within first and second nasal passages of a patient's nose and at least one mouthpiece extending to a patient's mouth. The main body chamber communicates with first and second cannula inlet/outlets and each nare and the mouthpiece includes a gas flow passage extending from the nostril or mouth to the main body chamber. At least one nasal gas flow sensor is located in an gas flow passage of at least one of the nares and at least one oral gas flow sensor located in the mouthpiece gas flow passage, preferably in the regions of the gas flow passages adjacent the main body chamber.
    Type: Application
    Filed: February 22, 2008
    Publication date: May 6, 2010
    Applicant: SALTER LABS
    Inventors: James N. CURTI, James CHUA, Peter W. SALTER
  • Patent number: 7640932
    Abstract: 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.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: January 5, 2010
    Assignee: Salter Labs
    Inventors: James N. Curti, Peter W. Salter, James Chua
  • Patent number: 7451762
    Abstract: 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.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: November 18, 2008
    Assignee: Salter Labs
    Inventors: James Chua, Kyle Adriance, Phuoc H. Vo
  • Publication number: 20060283446
    Abstract: 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.
    Type: Application
    Filed: June 17, 2005
    Publication date: December 21, 2006
    Inventors: James Chua, Kyle Adriance, Phuoc Vo
  • Publication number: 20050284484
    Abstract: 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.
    Type: Application
    Filed: June 17, 2005
    Publication date: December 29, 2005
    Inventors: James Curti, Peter Salter, James Chua
  • Patent number: 6904906
    Abstract: This invention is a device (10) for inspiration of a mist from a nebulizer, having an inlet connector (12, 32) adapted to engage an outlet port of a nebulizer, a hollow mouthpiece element (126 34) for insertion into a patient's mouth; a conduit (14) forming a fluid connection between the inlet connector, and the hollow mouthpiece element. An exhaust valve (26) 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 (26, 50). The PEP valve is positioned on the conduit between the inlet connector, and the mouthpiece element; and a filter housing (44) containing a filter (60) for filtering the exhaled gases passing from the exhaust/PEP valve.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: June 14, 2005
    Assignee: Salter Labs
    Inventors: Peter W. Salter, James Chua, Walter Van Horn, Duane D. Kazal, Laurence McGann
  • Publication number: 20040045552
    Abstract: This invention is a nasal cannula (10) having a septum (15) therein, and two nares (13, 14) each having a hole (37, 35) therein to help prevent occlusion of the device from secretions. The cannula is connected to an oxygen source (G) and a CO2 monitor (A).
    Type: Application
    Filed: July 25, 2003
    Publication date: March 11, 2004
    Inventors: James N. Curti, James Chua, Peter W. Salter
  • Publication number: 20040040557
    Abstract: This invention is a device (10) for inspiration of a mist from a nebulizer, the device comprising an inlet connector (12, 32) adapted to engage an outlet port of a nebulizer; a hollow mouthpiece element (126, 34) for insertion into a patient's mouth; a conduit (14) forming a fluid connection between the inlet connector, and the hollow mouthpiece element; an exhaust valve (26) for removing expiratory gases which are exhaled into the mouthpiece element to the ambient atmosphere via the exhaust/positive expiratory pressure (PEP) valve (26, 50) positioned on the conduit between the inlet connector, and the mouthpiece element; and a filter housing (44) containing a filter (60) for filtering the exhaled gases passing from the exhaust/PEP valve.
    Type: Application
    Filed: September 4, 2003
    Publication date: March 4, 2004
    Inventors: Peter W. Salter, James Chua, Walter Van Horn, Duane D. Kazal, Laurence McGann
  • Patent number: 6655385
    Abstract: 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.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: December 2, 2003
    Assignee: Salter Labs
    Inventors: James N. Curti, James Chua, Peter W. Salter
  • Patent number: 6631721
    Abstract: This invention is a device (10) for inspiration of a mist from a nebulizer, the device comprising an inlet connector (12, 32) adapted to engage an outlet port of a nebulizer; a hollow mouthpiece element (126, 34) for insertion into a patient's mouth; a conduit (14) forming a fluid connection between the inlet connector, and the hollow mouthpiece element; an exhaust valve (26) for removing expiratory gases which are exhaled into the mouthpiece element to the ambient atmosphere via the exhaust/positive expiratory pressure (PEP) valve (26, 50) positioned on the conduit between the inlet connector, and the mouthpiece element; and a filter housing (44) containing a filter (60) for filtering the exhaled gases passing from the exhaust/PEP valve.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: October 14, 2003
    Assignee: Salter Labs
    Inventors: Peter W. Salter, James Chua, Walter Van Horn, Duane D. Kazal, Laurence McGann
  • Patent number: 6439234
    Abstract: 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.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: August 27, 2002
    Assignee: Salter Labs
    Inventors: James N. Curti, James Chua, Peter W. Salter
  • Publication number: 20020053346
    Abstract: This invention is a nasal cannula (10) having a septum (15) therein, and two nares (13, 14) each having a hole (37, 35) therein to help prevent occlusion of the device from secretions. The cannula is connected to an oxygen source (G) and a CO2 monitor (A).
    Type: Application
    Filed: November 2, 1998
    Publication date: May 9, 2002
    Inventors: JAMES N. CURTI, JAMES CHUA, PETER W. SALTER
  • Patent number: 6176234
    Abstract: 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.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: January 23, 2001
    Assignee: Salter Labs
    Inventors: Peter W. Salter, James Chua, Walter Van Horn, Duane D. Kazal, Laurence McGann