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公开(公告)号：US11090458B2
公开(公告)日：2021-08-17
申请号：US16354137
申请日：2019-03-14
Applicant: Fresca Medical Inc.
Inventor： Andrew H. Cragg , John Logan , Haim Nissimov , Richard Ewers , Mark Adler , Eugene G. Chen , John Edwin Trusheim , John Nolting , Stephen William Anderson , Kevin Chen
Abstract: 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 to the 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.
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公开(公告)号：US20170157356A1
公开(公告)日：2017-06-08
申请号：US15334243
申请日：2016-10-25
Applicant: Fresca Medical Inc.
Inventor： Richard Ewers , Kevin Chen , Andrew Dominguez
CPC classification number: A61B5/0002 , A61B5/01 , A61B5/02405 , A61B5/02438 , A61B5/0533 , A61B5/0816 , A61B5/1118 , A61B5/4809 , A61B5/4812 , A61M16/0057 , A61M16/0069 , A61M16/024 , A61M16/06 , A61M16/0666 , A61M16/0816 , A61M16/0875 , A61M16/206 , A61M16/208 , A61M2016/003 , A61M2205/128 , A61M2205/3569 , A61M2205/3592 , A61M2205/50 , A61M2230/005 , A61M2230/205 , A61M2230/63
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.
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公开(公告)号：US10953183B2
公开(公告)日：2021-03-23
申请号：US16788014
申请日：2020-02-11
Applicant: Fresca Medical Inc.
Inventor： Andrew Dominguez , Richard Ewers
Abstract: A hose is described that includes a braided matrix with an interior lumen. The matrix also includes filaments that intersect one another, 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 by 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.
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公开(公告)号：US20200206449A1
公开(公告)日：2020-07-02
申请号：US16788014
申请日：2020-02-11
Applicant: Fresca Medical Inc.
Inventor： Andrew Dominguez , Richard Ewers
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.
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公开(公告)号：US20190015622A1
公开(公告)日：2019-01-17
申请号：US16034980
申请日：2018-07-13
Applicant: Fresca Medical Inc.
Inventor： Richard Ewers , Andrew Dominguez
CPC classification number: A61M16/201 , A61B5/0205 , A61B5/02055 , A61B5/0402 , A61B5/0531 , A61B5/0816 , A61B5/1118 , A61B5/4809 , A61B5/4818 , A61B5/4836 , A61M16/0003 , A61M16/0066 , A61M16/0666 , A61M16/204 , A61M16/205 , A61M16/206 , A61M2016/0027 , A61M2205/3584 , A61M2230/06
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. An inspiratory valve is formed by the inspiratory valve seat and the second portion of the inspiratory membrane.
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Patent Agency Ranking
公开(公告)号：US20180064899A1
公开(公告)日：2018-03-08
申请号：US15690195
申请日：2017-08-29
Applicant: Fresca Medical Inc.
Inventor： Richard Ewers , Kevin Chen , Andrew Dominguez
CPC classification number: A61M16/0666 , A61M16/0066 , A61M16/0616 , A61M16/0683 , A61M16/0816 , A61M16/0875 , A61M16/20 , A61M2205/42 , A61M2210/0618
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.
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公开(公告)号：US10980958B2
公开(公告)日：2021-04-20
申请号：US15910937
申请日：2018-03-02
Applicant: Fresca Medical Inc.
Inventor： Richard Ewers , Douglas Gaylord , Carl Tedesco , Steve Harrington
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 at least one change of direction greater than or equal to 75 degrees. The two paths share at least one change of direction.
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公开(公告)号：US20190232011A1
公开(公告)日：2019-08-01
申请号：US16378780
申请日：2019-04-09
Applicant: Fresca Medical Inc.
Inventor： Andrew Dominguez , Richard Ewers
CPC classification number: A61M16/0666 , A61B5/4818 , A61F5/566 , A61M16/0003 , A61M16/06 , A61M16/0816 , A61M2205/0216 , A61M2205/0266 , F16L11/02 , F16L11/04 , F16L11/10
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.
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公开(公告)号：US20190167929A1
公开(公告)日：2019-06-06
申请号：US16210681
申请日：2018-12-05
Applicant: Fresca Medical Inc.
Inventor： John Cox , Ed McCarthy , Richard Ewers
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.
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公开(公告)号：US20180326173A1
公开(公告)日：2018-11-15
申请号：US16034967
申请日：2018-07-13
Applicant: Fresca Medical Inc.
Inventor： Richard Ewers , Andrew Dominguez
CPC classification number: A61M16/205 , A61B5/4809 , A61M16/0003 , A61M16/024 , A61M16/204 , A61M2016/0027 , A61M2205/3569
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.
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