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).

  • Patent number: 12313197
    Abstract: A hose connector with an adjustment structure to securely connect patient interface components to a machine in Continuous Positive Airway Pressure therapy. The hose connector includes a first connector end to connect an external tubular connector, a second connector end to connect a hose, and a sidewall that encircles and forms the first connector end and the second connector end. The sidewall has an interior and an exterior, with a gripping portion on the exterior. The first connector end, which is configured to connect to the external tubular connector, includes a portion of the sidewall, a chamber that is configured to accommodate the hose connector, an opening, an abutment surface, and a retaining structure. At least one adjustment structure is provided on the opening. Furthermore, the first connector end of the hose connector with the adjustment structure is made of a resilient first material.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: May 27, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Publication number: 20250161615
    Abstract: A patient interface cushion and specifically a patient interface cushion with fabric, configured to supply pressurized breathing gas to the nasal and oral airways of a user. The patient interface cushion includes a rigid part, configured to support the elastic part, featuring a first opening and a second opening; The elastic part, configured to provide an attachment surface for the fabric part, featuring a third opening in communication with the second opening and a fourth opening allowing the user's nose and mouth to enter the internal cavity of the elastic part. The fabric part, configured to form a sealing area between the lower lip area and the nasal bridge area, featuring a first surface partially connected to the elastic part, a second surface sealing at least a portion of the user's face, and also having an inner edge and an outer edge.
    Type: Application
    Filed: November 27, 2024
    Publication date: May 22, 2025
    Inventor: David LUO
  • Publication number: 20250161620
    Abstract: A frame assembly directly connected to a frame and a short tube, including a frame and a gas delivery hose and side connectors connected to the frame. The frame is configured to bend towards the face. The frame includes a fixed opening and first connection parts connected to the side connectors. The gas delivery hose includes a first end, a middle hose, and a second end. The side connectors have a front end and a rear end. The front end is for connecting to the frame, the rear end to the face. The frame assembly directly connected to a frame and a short tube also includes an exhaust channel, located on the frame or the gas delivery hose. The frame is detachably connected directly to the gas delivery hose. Combining the exhaust channel with the frame or gas delivery hose reduces the noise and lightens the weight by reducing parts, enhancing the comfort and user experience.
    Type: Application
    Filed: November 21, 2023
    Publication date: May 22, 2025
    Inventor: David LUO
  • Publication number: 20250152887
    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: Application
    Filed: November 15, 2023
    Publication date: May 15, 2025
    Inventor: David LUO
  • Publication number: 20250121148
    Abstract: An oral and nasal sealing interface pad including a rigid part and a lining pad. The rigid part has a circular opening on one side and a joint part on the other side; the lining pad is fixedly connected to the joint part and is located below the user's nose. The lining pad includes a nasal area corresponding to and abutting the user's nasal tip and a mouth area corresponding to and surrounding the user's mouth. The space enclosed by the nasal area is connected to the space enclosed by the mouth area, together forming an integrated respiratory chamber. The nasal area includes a nasal tip area and an alar area. The nasal tip area has at least one thin area for accommodating the user's nasal tip, and the nasal tip area is equipped with a first wing for abutting against the user's columella.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 17, 2025
    Inventor: David Luo
  • Patent number: 12274829
    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: Grant
    Filed: November 15, 2023
    Date of Patent: April 15, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12263302
    Abstract: A heatable air delivery tube that maintains the temperature within the tube includes a patient interface end, an airflow generator end, and a heated spiral tube with metal wires that connects the two ends. The patient interface end includes a notch that allows for deformation to better achieve a seal when connected to other tubular connectors. The airflow generator end has a deformable connecting clamp, which allows for self-deformation to secure a snap-fit connection with the airflow generator. The inner diameters of the connectors of both the patient interface end and the airflow generator end are no larger than the tubular connectors they connect to, to ensure a better seal.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: April 1, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12239790
    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: Grant
    Filed: November 21, 2023
    Date of Patent: March 4, 2025
    Assignee: DCSTAR INC.
    Inventor: David Luo
  • Patent number: 12239343
    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: Grant
    Filed: November 15, 2023
    Date of Patent: March 4, 2025
    Assignee: DCSTAR INC
    Inventors: Ligui He, David Luo
  • Patent number: 12214134
    Abstract: An oral and nasal sealing interface pad including a rigid part and a lining pad. The rigid part has a circular opening on one side and a joint part on the other side; the lining pad is fixedly connected to the joint part and is located below the user's nose. The lining pad includes a nasal area corresponding to and abutting the user's nasal tip and a mouth area corresponding to and surrounding the user's mouth. The space enclosed by the nasal area is connected to the space enclosed by the mouth area, together forming an integrated respiratory chamber. The nasal area includes a nasal tip area and an alar area. The nasal tip area has at least one thin area for accommodating the user's nasal tip, and the nasal tip area is equipped with a first wing for abutting against the user's columella.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: February 4, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12201773
    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: Grant
    Filed: January 18, 2024
    Date of Patent: January 21, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12186485
    Abstract: A patient interface cushion and specifically a patient interface cushion with fabric, configured to supply pressurized breathing gas to the nasal and oral airways of a user. The patient interface cushion includes a rigid part, configured to support the elastic part, featuring a first opening and a second opening; The elastic part, configured to provide an attachment surface for the fabric part, featuring a third opening in communication with the second opening and a fourth opening allowing the user's nose and mouth to enter the internal cavity of the elastic part. The fabric part, configured to form a sealing area between the lower lip area and the nasal bridge area, featuring a first surface partially connected to the elastic part, a second surface sealing at least a portion of the user's face, and also having an inner edge and an outer edge.
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: January 7, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12171944
    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: Grant
    Filed: December 14, 2023
    Date of Patent: December 24, 2024
    Assignee: DCSTAR INC.
    Inventor: David Luo
  • Publication number: 20240390626
    Abstract: An oral and nasal sealing interface pad including a rigid part and a lining pad. The rigid part has a circular opening on one side and a joint part on the other side; the lining pad is fixedly connected to the joint part and is located below the user's nose. The lining pad includes a nasal area corresponding to and abutting the user's nasal tip and a mouth area corresponding to and surrounding the user's mouth. The space enclosed by the nasal area is connected to the space enclosed by the mouth area, together forming an integrated respiratory chamber. The nasal area includes a nasal tip area and an alar area. The nasal tip area has at least one thin area for accommodating the user's nasal tip, and the nasal tip area is equipped with a first wing for abutting against the user's columella.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 28, 2024
    Inventor: David Luo
  • Patent number: D1064253
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: February 25, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1065448
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: March 4, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1070791
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: April 15, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1071144
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: April 15, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1072705
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: April 29, 2025
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1073930
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: May 6, 2025
    Assignee: DCSTAR INC.
    Inventor: David Luo