Patents by Inventor Richard Ewers

Richard Ewers 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: 10765830
    Abstract: A valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure is connected to an air flow generator and connected to a mask that covers at least the nostrils of a patient. The valve structure includes a housing with an inlet pressure port connected to the air flow generator, and an ambient pressure port. Within the housing is an expiratory membrane, an expiratory valve seat, an inspiratory membrane, an inlet pressure valve seat, an inspiratory valve seat, and an inspiratory membrane segmentation structure configured to segment the movement of the inspiratory membrane into at least a first portion and a second portion. An expiratory valve in fluid connection with the inlet pressure port is formed by the expiratory membrane and the expiratory valve seat. An inlet pressure valve is formed by the inlet pressure valve seat and the first portion of the inspiratory membrane.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: September 8, 2020
    Assignee: FRESCA Medical, Inc.
    Inventors: Richard Ewers, Andrew Dominguez
  • Publication number: 20200206449
    Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect each other creating a braid, a longitudinal axis that runs along the lumen and the filaments intersect the longitudinal axis at a braid angle. The braid angle can be varied by compressing or expanding the matrix along the direction of the longitudinal axis. A polymer coating is applied to the matrix such that the matrix is substantially impermeable to air. The hose has two states: (1) a relaxed state where the hose does not experience a force in the direction of the longitudinal axis; and (2) a stressed state where the hose experiences a force in the direction of the longitudinal axis. The braid angle is larger in the relaxed state as compared to the stressed state. A method of manufacture for the hose is also disclosed.
    Type: Application
    Filed: February 11, 2020
    Publication date: July 2, 2020
    Inventors: Andrew Dominguez, Richard Ewers
  • Patent number: 10556081
    Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect each other and create a braid, and a longitudinal axis that runs along the lumen, wherein the filaments intersect the longitudinal axis at a braid angle. The braid angle can be varied by compressing or expanding the matrix along the direction of the longitudinal axis. A polymer coating is applied to the matrix such that the matrix is substantially impermeable to air. The hose has two states: (1) a relaxed state, where the hose does not experience a force in the direction of the longitudinal axis; and (2) a stressed state where the hose experiences a force in the direction of the longitudinal axis. The braid angle is larger in the relaxed state as compared to the stressed state. A method of manufacture for the hose is also disclosed.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: February 11, 2020
    Assignee: FRESCA MEDICAL, INC.
    Inventors: Andrew Dominguez, Richard Ewers
  • Publication number: 20190232011
    Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect each other creating a braid, a longitudinal axis that runs along the lumen and the filaments intersect the longitudinal axis at a braid angle. The braid angle can be varied by compressing or expanding the matrix along the direction of the longitudinal axis. A polymer coating is applied to the matrix such that the matrix is substantially impermeable to air. The hose has two states: (1) a relaxed state where the hose does not experience a force in the direction of the longitudinal axis; and (2) a stressed state where the hose experiences a force in the direction of the longitudinal axis. The braid angle is larger in the relaxed state as compared to the stressed state. A method of manufacture for the hose is also disclosed.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Inventors: Andrew Dominguez, Richard Ewers
  • Publication number: 20190224440
    Abstract: A system for treating a patient suffering from obstructive sleep apnea or snoring is diclsoed. The system includes an air flow generator configured to deliver an air flow at a positive therapeutic pressure during the treatment, and an expiratory valve with an open pressure connected air flow generator. The open pressure is dependent on the therapeutic pressure from the air flow generator. The expiratory valve further exerts a back pressure upon each exhalation from the patient sufficient to create a pneumatic splint in the patient's respiratory tract. The exhalation from the patient has a first half followed by a second half and the back pressure is varied such that during the start of the first half the back pressure is between 0 and 50% of a peak back pressure and increases to a peak back pressure in the second half.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 25, 2019
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Stephen William Anderson, Kevin Chen
  • Patent number: 10315000
    Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect each other creating a braid, a longitudinal axis that runs along the lumen and the filaments intersect the longitudinal axis at a braid angle. The braid angle can be varied by compressing or expanding the matrix along the direction of the longitudinal axis. A polymer coating is applied to the matrix such that the matrix is substantially impermeable to air. The hose has two states: (1) a relaxed state where the hose does not experience a force in the direction of the longitudinal axis; and (2) a stressed state where the hose experiences a force in the direction of the longitudinal axis. The braid angle is larger in the relaxed state as compared to the stressed state. A method of manufacture for the hose is also disclosed.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 11, 2019
    Assignee: FRESCA MEDICAL, Inc.
    Inventors: Andrew Dominguez, Richard Ewers
  • Publication number: 20190167929
    Abstract: A blower for the treatment of a patient's sleep apnea is disclosed. The blower includes a start/stop button, an air pump, and a processor connected to the start/stop button and air pump. A user may input a sleep period (Tsleep), an ultimate therapeutic pressure (TP) and an acclimation period (Nset). The processor performs an acclimation procedure to ease the patient in to the use of the positive airway pressure (PAP) system over the selected acclimation period.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 6, 2019
    Inventors: John Cox, Ed McCarthy, Richard Ewers
  • Publication number: 20190167930
    Abstract: A blower for the treatment of a patient's sleep apnea is disclosed. The blower includes a start/stop button, an air pump, and a processor connected to the start/stop button and air pump. A user may input a snooze period (Tsnooze), a ramp period, (Tramp1), and an ultimate therapeutic pressure (TP). The processor performs an snooze function that allows a user to stop the delivery of pressure from the blower for the snooze period, after which the processor ramps the pressure gradually over the ramp period until plateauing at the ultimate therapeutic pressure. The processor may limit the number of snooze triggers that a patient may use.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 6, 2019
    Inventors: John Cox, Ed McCarthy, Richard Ewers
  • Patent number: 10206571
    Abstract: Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A CPAP system with an integrated oximeter sensor is disclosed wherein the sensor communicates with an oximeter processor that controls the blower. A nasal air flow sensor may also be incorporated that provides more data to the processor. A unique lightweight, flexible and stretchable hose for CPAP systems is also disclosed. The hose may have a magnetic connection with the blower.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 19, 2019
    Assignee: Fresca Medical, Inc.
    Inventors: Richard Ewers, Kevin Chen, Andrew Dominguez
  • Publication number: 20190015620
    Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect each other creating a braid, a longitudinal axis that runs along the lumen and the filaments intersect the longitudinal axis at a braid angle. The braid angle can be varied by compressing or expanding the matrix along the direction of the longitudinal axis. A polymer coating is applied to the matrix such that the matrix is substantially impermeable to air. The hose has two states: (1) a relaxed state where the hose does not experience a force in the direction of the longitudinal axis; and (2) a stressed state where the hose experiences a force in the direction of the longitudinal axis. The braid angle is larger in the relaxed state as compared to the stressed state. A method of manufacture for the hose is also disclosed.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Inventors: Richard Ewers, Andrew Dominguez
  • Publication number: 20190015622
    Abstract: A valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure is connected to an air flow generator and connected to a mask that covers at least the nostrils of a patient. The valve structure includes a housing with an inlet pressure port connected to the air flow generator, and an ambient pressure port. Within the housing is an expiratory membrane, an expiratory valve seat, an inspiratory membrane, an inlet pressure valve seat, an inspiratory valve seat, and an inspiratory membrane segmentation structure configured to segment the movement of the inspiratory membrane into at least a first portion and a second portion. An expiratory valve in fluid connection with the inlet pressure port is formed by the expiratory membrane and the expiratory valve seat. An inlet pressure valve is formed by the inlet pressure valve seat and the first portion of the inspiratory membrane.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 17, 2019
    Inventors: Richard Ewers, Andrew Dominguez
  • Publication number: 20180326173
    Abstract: A valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure is connected to an air flow generator and connected to a mask that covers at least the nostrils of a patient. The valve structure includes an inlet pressure port attached to the air flow generator and an expiration valve that includes an expiratory membrane, a primary seat and a secondary seat. During inspiration the expiratory membrane forms a seal with the primary seat, and during expiration, the expiratory membrane forms a seal with the secondary seat.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 15, 2018
    Inventors: Richard Ewers, Andrew Dominguez
  • Publication number: 20180185597
    Abstract: A sleep mask valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure includes a rigid valve housing comprising an inspiratory valve and an adjustable expiratory valve. The housing defines an outside mask side and an intra-mask side, and further defines an expiratory airflow conduit accommodating airflow from the intra-mask side to the outside mask side and an inspiratory airflow conduit accommodating airflow from the outside mask side to the intra-mask side. The expiratory airflow conduit includes at least two changes of direction, with each direction change greater than or equal to 75 degrees and the inspiratory airflow conduit includes comprising at least one change of direction greater than or equal to 75 degrees. The two paths share at least one change of direction.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Inventors: Richard Ewers, Douglas Gaylord, Carl Tedesco, Steve Harrington
  • Publication number: 20180064899
    Abstract: A nasal pillow system for treating sleep apnea is disclosed that may include a nasal pillow. The pillow has a cavity wall that defines a cavity, and two nasal interface structures connected to and extending away from the cavity wall. The nasal interface structures are in fluid communication with cavity. Each nasal interface structure includes a conical nasal interface, a cylindrical trunk structure connected to conical nasal interface and an annular relief pocket connected to the cylindrical truck structure and the cavity wall. The connection between the annular relief pocket and the cavity wall defines substantially a plane, and a first portion of the annular relief pocket extends away from the plane and a second portion extends towards the plane.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 8, 2018
    Inventors: Richard Ewers, Kevin Chen, Andrew Dominguez
  • Publication number: 20180049638
    Abstract: Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A unitary valve assembly removably located inside the exterior profile of a nasal pillow mask uses positive airway pressure from a low-flow hose to automatically create an on-demand therapeutic air splint in the pharynx. During inspiration the mask's valving system allows room air to be inspired. During exhalation another valve governs therapeutic backpressure equal to the prescribed pressure setting of the CPAP blower machine. The mask may be worn when the CPAP blower machine is off, and systems are provided for turning the CPAP blower machine on only when needed.
    Type: Application
    Filed: March 23, 2016
    Publication date: February 22, 2018
    Applicant: FRESCA MEDICAL INC.
    Inventors: Richard EWERS, Kevin CHEN, Andrew DOMINGUEZ
  • Publication number: 20170157356
    Abstract: Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A CPAP system with an integrated oximeter sensor is disclosed wherein the sensor communicates with an oximeter processor that controls the blower. A nasal air flow sensor may also be incorporated that provides more data to the processor. A unique lightweight, flexible and stretchable hose for CPAP systems is also disclosed. The hose may have a magnetic connection with the blower.
    Type: Application
    Filed: October 25, 2016
    Publication date: June 8, 2017
    Inventors: Richard Ewers, Kevin Chen, Andrew Dominguez
  • Patent number: 9492086
    Abstract: Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A unitary valve assembly removably located inside the exterior profile of a nasal pillow mask uses positive airway pressure from a low-flow hose to automatically create an on-demand therapeutic air splint in the pharynx. During inspiration the mask's valving system allows room air to be inspired. During exhalation another valve governs therapeutic backpressure equal to the prescribed pressure setting of the CPAP blower machine. The mask may be worn when the CPAP blower machine is off, and systems are provided for turning the CPAP blower machine on only when needed.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 15, 2016
    Assignee: Fresca Medical, Inc.
    Inventors: Richard Ewers, Kevin Chen, Andrew Dominguez
  • Publication number: 20160051791
    Abstract: Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A unitary valve assembly removably located inside the exterior profile of a nasal pillow mask uses positive airway pressure from a low-flow hose to automatically create an on-demand therapeutic air splint in the pharynx. During inspiration the mask's valving system allows room air to be inspired. During exhalation another valve governs therapeutic backpressure equal to the prescribed pressure setting of the CPAP blower machine. The mask may be worn when the CPAP blower machine is off, and systems are provided for turning the CPAP blower machine on only when needed.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: Fresca Medical Inc.
    Inventors: Richard Ewers, Kevin Chen, Andrew Dominguez
  • Publication number: 20140246025
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Fresca Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Steve Anderson, Kevin Chen
  • Publication number: 20140246024
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Fresca Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Steve Anderson, Kevin Chen