Abstract: A respiratory interface system for use in delivering a flow of a positive pressure breathing gas to an airway of a patient that includes a patient interface device with a tubing assembly structured to be disposed on the head of the patient, a mask having a sealing element structured to sealingly engage about the airway of the patient, and an adaptor. The adapter includes a flange portion that extends generally radially outward from a central aperture and a hollow male connector extending from the flange portion and coupled with a correspondingly-shaped female connector of the tubing assembly or the mask. The mask is coupled to the tubing assembly via the adaptor, and the tubing assembly, the mask, and the adapter define a pathway structured to conduct the flow of the positive pressure breathing gas to the airway of the patient.

Abstract: A retention assembly is for a patient interface device. The patient interface device includes a cushion member structured to engage a face of a patient. The retention assembly includes: a retention member structured to be coupled to the cushion member; a headgear member; a first interconnect member removably coupled to the retention member; and a second interconnect member removably coupled to the headgear member. The second interconnect member is removably coupled to the first interconnect member in order to couple the headgear member to the retention member.

Abstract: A sealing arrangement for forming a seal between a patient's face and a patient interface device for use in delivering a flow of a treatment gas to the patient includes a generally planar substrate body having a first side and an opposite second side. The substrate body includes a main portion having an opening defined therethrough that is sized and configured to encompass the mouth and nose of the patient. The sealing arrangement further includes a first adhesive layer disposed on the first side of the substrate body and a second adhesive layer disposed on the second side of the substrate body. The first adhesive layer is sized and configured to adhere to the skin of the patient with a first adherence force and the second adhesive layer is sized and configured to adhere to a cushion of the patient interface device with a lesser second adherence force.

Abstract: A tuneable expiration positive airway pressure (TEPAP) apparatus (10) comprises an entrainment valve (12) and a module (14), fluidly coupled with an outlet port (60) of the entrainment valve, for tuning an inspiration-to-expiration pressure transition of the breath cycle. The entrainment valve (12) includes a housing (56), an upstream inlet port (58), a downstream outlet port (60), and a valve (62). The valve (62) enables inspiration airflow between an exterior the housing (56) and the inlet port (58) during inspiration and prevents expiration airflow between the inlet port (58) and the exterior of the housing (56) during expiration. The tuning module (14) facilitates at least one rate-of-change in pressure of the inspiration-to-expiration pressure transition that is non-instantaneous. The at least one non-instantaneous rate of change in pressure is selected from among different non-instantaneous rates-of-change in pressure of the inspiration-to-expiration pressure transition.

Abstract: A patient interface device is for a pressure support system that includes a flow generator that produces a flow of breathing gas to be delivered to an airway of a patient. The patient interface device includes a sealing element to engage a face of the patient and receive the flow of breathing gas; a lumen having a first end and a second end opposite and distal the first end, the first end being in fluid communication with an interior of the sealing element; a connector member coupled to the second end of the lumen; a pressure sensor coupled to the connector member, the pressure sensor sensing pressure of a gas exiting the second end of the lumen; and a surface provided on one of the lumen and the connector member, the surface defining a thru hole through which undesirable liquid in the lumen can escape.

Abstract: A conduit for use in a pressure support system for communicating a flow of pressurized gas to the airway of a patient includes a first strip of a first material disposed helically about a central longitudinal axis such that subsequent helical convolutions of the first strip are disposed adjacent each other, and a second strip of a second material disposed helically about the central longitudinal axis along the first strip. The second strip is coupled between the subsequent helical convolutions of the first strip so as to form a hollow conduit. The first material is structured to prevent the passage of fluids therethrough. The second material is structured to allow passage of a liquid therethrough while inhibiting passage of gases therethrough.

Abstract: A retention assembly is for a patient interface device. The patient interface device includes a cushion member structured to engage a face of a patient. The retention assembly includes: a retention member structured to be coupled to the cushion member; a headgear member; a first interconnect member removably coupled to the retention member; and a second interconnect member removably coupled to the headgear member. The second interconnect member is removably coupled to the first interconnect member in order to couple the headgear member to the retention member.

Abstract: A retention assembly is for a patient interface device. The patient interface device includes a cushion member structured to engage a face of a patient. The retention assembly includes: a retention member structured to be coupled to the cushion member; a headgear member; a first interconnect member removably coupled to the retention member; and a second interconnect member removably coupled to the headgear member. The second interconnect member is removably coupled to the first interconnect member in order to couple the headgear member to the retention member.

Abstract: A conduit for use in a pressure support system for communicating a flow of pressurized gas to the airway of a patient includes a first strip of a first material disposed helically about a central longitudinal axis such that subsequent helical convolutions of the first strip are disposed adjacent each other, and a second strip of a second material disposed helically about the central longitudinal axis along the first strip. The second strip is coupled between the subsequent helical convolutions of the first strip so as to form a hollow conduit. The first material is structured to prevent the passage of fluids therethrough. The second material is structured to allow passage of a liquid therethrough while inhibiting passage of gases therethrough.

Abstract: A patient interface device is for a pressure support system that includes a flow generator that produces a flow of breathing gas to be delivered to an airway of a patient. The patient interface device includes a sealing element to engage a face of the patient and receive the flow of breathing gas; a lumen having a first end and a second end opposite and distal the first end, the first end being in fluid communication with an interior of the sealing element; a connector member coupled to the second end of the lumen; a pressure sensor coupled to the connector member, the pressure sensor sensing pressure of a gas exiting the second end of the lumen; and a surface provided on one of the lumen and the connector member, the surface defining a thru hole through which undesirable liquid in the lumen can escape.

Abstract: A retention assembly is for a patient interface device. The patient interface device includes a cushion member structured to engage a face of a patient. The retention assembly includes: a retention member structured to be coupled to the cushion member; a headgear member; a first interconnect member removably coupled to the retention member; and a second interconnect member removably coupled to the headgear member. The second interconnect member is removably coupled to the first interconnect member in order to couple the headgear member to the retention member.

Abstract: A carrier rack for a vehicle is provided that includes a tubular frame member and a plurality of strapping members. The tubular frame member includes at least four corner portions and defines an outer perimeter of the carrier rack and also defines a carrier plane. Each of the strapping members is secured to a respective one of the corner portions, and is spaced apart from the carrier plane and positioned entirely interior of the outer perimeter of the carrier rack. The carrier plane is generally horizontally oriented, and each of the strapping members is below the carrier plane, when the carrier rack is attached to a vehicle and oriented to carry objects.

Abstract: A carrier rack for a vehicle is provided that includes a tubular frame member and a plurality of strapping members. The tubular frame member includes at least four corner portions and defines an outer perimeter of the carrier rack and also defines a carrier plane. Each of the strapping members is secured to a respective one of the corner portions, and is spaced apart from the carrier plane and positioned entirely interior of the outer perimeter of the carrier rack. The carrier plane is generally horizontally oriented, and each of the strapping members is below the carrier plane, when the carrier rack is attached to a vehicle and oriented to carry objects.