Patents by Inventor David Luo

David Luo 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).

  • Publication number: 20250242123
    Abstract: A modular elbow frame assembly for a ventilator, which includes an elbow, a hose, a tubular connector, an external connecting component, a frame, a noise reduction element, a quick-release device. The modular elbow frame assembly for a ventilator can be used in conjunction with a patient interface cushion and a ventilator tube. In this system, the quick-release device is integrally formed with the elbow. The assembly involves a modular design that makes the elbow detachable, allowing the replacement of the elbow with exhaust holes of different numbers or diameters for patients to adjust airflow pressure into the airway. The quick-release device enables the rapid detachment between the elbow and the frame or patient interface cushions. Patients can choose whether to include the noise reduction element and whether to connect the ventilator tube via a hose or directly through a tubular connector.
    Type: Application
    Filed: January 24, 2025
    Publication date: July 31, 2025
    Inventor: David LUO
  • Publication number: 20250235382
    Abstract: A liquid storage container to heat a certain volume of liquid. The liquid storage container includes a top cover, a middle layer, and a bottom part. The connection between the top cover and the bottom part is configured to be fully detachable. The top cover has at least a partial platform. The middle layer has a stopping element and a sealing element. The stopping element and a part of the sealing element are configured to connect to the bottom part and form a seal. A part of the sealing element is further configured to come into contact with and seal against the platform of the top cover. Together, they form a chamber to accommodate a certain volume of liquid. The bottom part has a heating plate to conduct heat.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 24, 2025
    Inventor: David LUO
  • Publication number: 20250235648
    Abstract: A patient interface cushion includes a rigid section and an elastic section. The elastic section is divided into a main body of the elastic section, which at least partially contacts and forms a seal with the patient's face during use, and a connecting portion to connect to the rigid section. The main body of the elastic section has multiple areas to enable the patient interface cushion to have different degrees of variation in different areas and to adjust the pressure exerted by the patient interface cushion on different facial areas. It specifically includes an adjustment area to accommodate different face sizes, nose heights, and widths; a support area to support the patient interface cushion; and a stabilization area to prevent the patient interface cushion from turning out. The adjustment area can be configured to include a nasal side adjustment part.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 24, 2025
    Inventor: David LUO
  • Publication number: 20250235653
    Abstract: A comfort pad for use on a Continuous Positive Airway Pressure frame. The comfort pad is configured to contact a face and includes a left-right symmetric structure. The comfort pad includes a first surface that connects to the frame and a second surface that contacts the face, an upper side, a lower side, a left side, and a right side opposite the left side. The material of the comfort pad is either foam, fabric, or a combination of both to ensure a comfortable contact surface for patients.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 24, 2025
    Applicant: DCSTAR INC
    Inventor: David LUO
  • Publication number: 20250235654
    Abstract: A frame assembly with forehead support includes an elbow, a forehead support frame, a cushion pad, an exhaust port, and fixing parts. The forehead support frame includes a first joint, a second joint, a support rod and a forehead pad to connect to the support rod. The first joint forms a detachable connection with the elbow. The forehead support frame further includes connecting end parts on both sides to connect to fixing parts. Magnetic buckles and connecting end parts are configured to connect to and secure a headgear. The cushion pad is configured to be placed on the forehead pad, providing cushioning to a face during use. Additionally, an exhaust port can be set on the elbow.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 24, 2025
    Applicant: DCSTAR INC
    Inventor: David LUO
  • Publication number: 20250235651
    Abstract: A patient interface pad with good comfort, configured to supply pressurized gas to an airway, includes a support section, an elastic section, and a comfort section. The support section and the elastic section together form a complete patient interface pad; the material of the comfort section includes foam, fabric, or a composite of both; the comfort section has different three-dimensional shapes and is connected to the patient interface pad to form the patient interface pad; the disclosure also discloses a manufacturing method for the patient interface pad with good comfort, as well as the connection method between the comfort section and the patient interface pad which is through an adhesive.
    Type: Application
    Filed: December 16, 2024
    Publication date: July 24, 2025
    Inventor: David LUO
  • Publication number: 20250235655
    Abstract: A headgear for use in the Positive Airway Pressure field includes an inner layer, a bonding layer, a padding layer, film layers, and an adhesive. The inner layer is configured to be at least partially in contact with a patient's skin during use, while the bonding layer is configured to adhere an outer side of the headgear, which comes into contact with the air, to a fixed part by folding the headgear, thereby tightening or loosening the headgear. The padding layer, placed between the inner layer and the bonding layer, increases thickness. The film layers are provided between the inner layer and the padding layer, as well as between the padding layer and the bonding layer. The adhesive is configured to bond the layers together. The headgear has at least three layers and is made of at least two types of textile materials.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 24, 2025
    Applicant: DCSTAR INC
    Inventor: David LUO
  • Publication number: 20250235650
    Abstract: A patient interface pad with good comfort, configured to supply pressurized gas to an airway, includes a support section, an elastic section, and a comfort section. The support section and the elastic section together form a complete patient interface pad; the material of the comfort section includes foam, fabric, or a composite of both; the comfort section has different three-dimensional shapes and is connected to the patient interface pad to form the patient interface pad; the disclosure also discloses a manufacturing method for the patient interface pad with good comfort, as well as the connection method between the comfort section and the patient interface pad which is through an adhesive.
    Type: Application
    Filed: November 25, 2024
    Publication date: July 24, 2025
    Inventor: David LUO
  • Patent number: 12350430
    Abstract: A comfortable, well-sealing respiratory mask with an annular comfort layer. The respiratory mask includes a rigid component, an elastic component, and an annular comfort layer. The rigid component is equipped with a gas delivery interface and an annular interface; the elastic component is connected to the rigid component and features a first accommodation area designed to house the user's mouth and nose or only the nose. On one side of the elastic component far away from the rigid component, there is at least one pressing part designed to seal at least a portion of the user's nose; the annular comfort layer has a second accommodation area that communicates with the first accommodation area, covering at least part of the pressing part and jointly forming a sealed surface with the elastic component.
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: July 8, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Publication number: 20250213811
    Abstract: A respiratory mask configured to adapt and comfortably seal according to the facial features of different users. The respiratory mask includes a support chamber, a cushioning part, and a comfort layer. The support chamber has curved sidewalls and two circular openings of varying sizes. The cushioning part includes of an elastic body and a sponge body. The fixed side of the elastic body is connected to the support chamber. The sponge body has a curved side and a connecting side that connects to the elastic body. The first side of the comfort layer is configured to make partial contact with the user's face, while the second side of the comfort layer connects to the sponge body. Both the cushioning part and the comfort layer are configured to deform, collaboratively ensuring a tight seal around the user's face.
    Type: Application
    Filed: March 17, 2025
    Publication date: July 3, 2025
    Inventor: David LUO
  • Patent number: 12337108
    Abstract: A noise-reducing air passage device and its components for use in ventilator systems, including a housing with at least one inlet, at least one outlet, an inner wall, and an outer wall. The space enclosed by the inner wall of the housing forms a gas passage including at least one chamber to provide a space for gas accumulation and flow. A blower, the core component to provide positive pressure gas to the device, is secured within one of the at least one chamber. The gas passage also includes a ventilation component to divide the gas and streamline turbulent airflow. The ventilation component is among the noise-reducing components, which also include a support component to provide support and damp vibrations for the blower and an inlet component provided at the inlet.
    Type: Grant
    Filed: July 25, 2024
    Date of Patent: June 24, 2025
    Assignee: WALLENBERG UNION LLC
    Inventor: David Luo
  • Publication number: 20250195807
    Abstract: A patient interface device to deliver continuous positive pressure gas from a ventilator to a user's nasal airway, which includes a front chamber section, a sealing structure, a ventilation component, and a positioning stabilizer. The front chamber section is bent towards one side of the user's face to form a main chamber and has at least one opening to install the ventilation component. The sealing structure has two shaped single-layer wall protrusions and communicates with the main chamber of the front chamber section. The ventilation component includes a noise reduction material, a ventilation component body, and a port cover. The positioning stabilizer is configured to be set on both ends of the front chamber section to provide a connection between components to secure the patient interface device. When in use, the exhaled waste gas is discharged into an external environment through the ventilation component.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 19, 2025
    Inventor: David LUO
  • Publication number: 20250195814
    Abstract: A frame assembly for a ventilator to deliver gas includes: a frame with a first interface set on the patient's forehead, a second interface near a nasal side of the patient, and a hollow tube; wing elements, to connect to a headgear to secure the frame on the patient's face, having a first wing element and a second wing element. The hollow tube extends from the patient's first nasal side, ascends towards the first temporal region, further rises to the forehead, then extends to the second temporal region and reaches the second nasal side, to form a contour that at least partially encircles the patient's eyes and nose. A support portion, set on an inner wall of the hollow tube, is to prevent the gas delivery device from bottoming out.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 19, 2025
    Inventor: David LUO
  • Publication number: 20250195811
    Abstract: A patient interface assembly with optimized connection methods and improved air-tightness. The patient interface assembly forms a complete channel to deliver positive pressure air when connected with an air supply tube and a ventilator. The patient interface assembly includes a patient interface pad, a frame, an elbow assembly, and a quick-release connector. The patient interface pad is fixedly connected to one end of the elbow assembly. The frame is positioned between the elbow assembly and the patient interface pad. The other end of the elbow assembly is connected to the quick-release connector. By reducing the connection steps between parts, the air-tightness of the patient interface assembly is enhanced, and the patient interface assembly is adaptable to various types of frames.
    Type: Application
    Filed: November 18, 2024
    Publication date: June 19, 2025
    Applicant: DCSTAR INC
    Inventor: David LUO
  • Publication number: 20250195808
    Abstract: A nasal mask for sealing the area from the nose tip to the upper lip of the user. It includes a flexible part that curves towards one side of the user's face. The flexible part has at least one protrusion, a chamber to accommodate gas, a first opening and at least one second opening. The flexible part includes a sealing section that, during use, surrounds the area at least including the nose tip, the first nostril, and the second nostril of the user, and makes contact with the area around the nostrils. The sealing section has at least one thin region and a support region that is thicker than the thin region. The nasal mask may also include a rigid part, an exhaust port, and a spring structure.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 19, 2025
    Inventor: David LUO
  • Publication number: 20250195818
    Abstract: A connector can be installed on the frame of a mask assembly used for the treatment of sleep apnea. This connector can be detachably connectable to a mask and an elbow, making it compatible with various masks and elbows. The commonality of the connector offers more choices for patients. While ensuring effective exhaust, the connector is also easy to clean, reducing the risk of patients getting infections from mold and pathogens. The connector includes a first interface end, a second interface end, and an annular channel to connect to the first interface end and the second interface end. The axis of the connector coincides with the axis of the gas outlet of the elbow. The connector passes through the central opening of the frame and is securely connected to the frame.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 19, 2025
    Inventor: David LUO
  • Publication number: 20250195817
    Abstract: A ventilation elbow assembly, which is directly connectable to a face mask. The elbow assembly includes an elbow, connector, ventilation port, noise reduction device, and quick-release connector. The elbow has a first interface, second interface, and annular channel. At the first interface, there is at least one stepped portion, which is configured to connect to the face mask and seal pressurized gas. A baffle is provided at the first interface, limiting frame movement relative to the face mask and elbow. The assembly also includes an anti-asphyxiation valve to prevent the patient from asphyxiation without continuous positive pressure in the elbow. With a connector, the elbow can first connect to the connector before the face mask, expanding the range of movement of the elbow assembly relative to the face mask. This is configured to increase the range of movement of the elbow assembly relative to the face mask.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 19, 2025
    Applicant: DCSTAR INC
    Inventor: David LUO
  • Publication number: 20250169855
    Abstract: A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.
    Type: Application
    Filed: January 24, 2025
    Publication date: May 29, 2025
    Inventors: Ligui HE, David LUO
  • Publication number: 20250169856
    Abstract: A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.
    Type: Application
    Filed: January 24, 2025
    Publication date: May 29, 2025
    Inventors: Ligui HE, David LUO
  • Patent number: 12311106
    Abstract: A breathing mask includes a rigid member, an elastic member, and a foam member. The rigid member has an interface on the side away from the user's face for accessing the breathing gas of the continuous positive airway pressure device, and a flared joint on the side adjacent to the user's face. The elastic member is in communication with the inner cavity of the rigid member and is fixedly connected to the flared joint. The side of the elastic piece adjacent to the user's face at least partially abuts the user's nasal bridge area to form an elastic body part, and a support part connected to the elastic body part is provided on the side of the elastic member adjacent to the user's face. The foam member is fixed to the support part and, together with the elastic member, forms a sealing surface for fitting the user's face.
    Type: Grant
    Filed: May 20, 2024
    Date of Patent: May 27, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo