Resmed Limited

Rescare Limited

Michel Calluaud

Michael Berthon-Jones

Christopher Edward Lynch

Victor Yerbury

Colin Edward Sullivan

Kenneth Frederick Hely

John William Ernest Brydon

A substance delivery apparatus for use with a system for supplying breathable gas to a human or animal includes a sensor to measure the pressure of the supplied breathable gas and to detect inhalation by the human or animal; and a reservoir, a conduit, a pump, and a diaphragm to deliver the substance to the human or animal during inhalation at a pressure higher than the supplied pressure of the breathable gas.

Method and apparatus for substance delivery in system for supplying breathable gas

A patient interface assembly adapted to be connected to a gas supply pump to deliver pressurized breathable gas to the inlet of a patient's respiratory system includes a patient interface structured to provide a seal with the patient and at least one inlet tube provided to the patient interface. Each inlet tube includes a substantially flat lower side wall to face the patient and a substantially arcuate upper side wall.

Patient interface assembly for CPAP respiratory apparatus

A patient interface assembly adapted to be connected to a gas supply pump to deliver breathable gas to the inlet of a patient's respiratory system comprises a supply conduit, a patient interface, a branch swivel connector including a Y-piece and an elbow that swivels relative to the Y-piece, the branch swivel connector being adapted to be located to the rear of a patient's head in use and being connected to the supply conduit. A pair of inlet tubes each have a first end positioned in use near a mouth of a patient and are connected to the nose mask, a middle portion arranged to pass across a cheek of a patient and an end portion being joined to the Y-piece of the branch connector. The inlet tubes have a flat configuration and are provided with a plurality of internal ribs which prevent the tubes being crushed. A strap is secured to the patient interface and adapted to pass around the sides and rear of the head to hold the patient interface in position on the head.

Patient interface for respiratory apparatus

Substance delivery apparatus

A pressure control apparatus (,) for CPAP treatment or assisted respiration. The apparatus (,) includes an inlet chamber (,) for connection to a primary supply of air or other breathable gas at a pressure at or above a maximum treatment pressure, an outlet chamber (,) for communication with a mask (,) or the like, a diaphragm (,) for communication with a portion of the outlet chamber (,), means (,) to provide a predetermined force to the diaphragm (,), a first valve means (,) operable to open a flow path between the outlet chamber (,) and the inlet chamber (,) in response to deflection of the diaphragm (,) in a first direction and a second valve means (,) operable to provide an exhaust path from the outlet chamber (,) to atmosphere in response to deflection of the diaphragm (,) in a second direction opposite to the first direction. When the pressure of gas in the outlet chamber (,) produces a force on the diaphragm (,) below the predetermined force the force differential on the diaphragm (,) causes it to deflect in the first direction and cause the first valve means (,) to open and to cause an equilibrating flow of gas from the inlet chamber (,). When the pressure of gas in the outlet chamber (,) produces a force on the diaphragm (,) above the predetermined force the force differential on the diaphragm (,) causes it to deflect in the second direction and cause the second valve means (,) to open.

Control of delivery pressure in CPAP treatment or assisted respiration

Method for automatic stop-start control of a breathing apparatus. Automatic starting and stopping of the device based upon the determination of a user wearing the mask by way of proximity sensors determining that a user is physically in contact with the mask in order to start the device and stopping the device when the proximity sensors determine the user is not in physical contact with the mask.

Automated stop/start control in the administration of CPAP treatment

A combination mouth and nasal mask (40) for assisted respiration or CPAP is disclosed. The combination mask (40) has a frame (42) to the rear side of which is mounted a separate nasal cushion (44) and mouth cushion (46). Both the nasal cushion (44) and the mouth cushion (46) separately form a rolled edge seal around the patient's face in the vicinity of the nose and in the vicinity of the lips. Inlet air is communicated from within the housing (48) to the mouth chamber, circumscribed by the mouth cushion (46) by means of one or more interconnecting tubes (62). The proportion of air communicated to the mouth chamber (48) is controlled by the sizing and number of the tube(s), thus providing for free flow of air, restricted flow of air and pressure equalization, or zero flow of air. A mouth mask (10) for assisted respiration or CPAP also is disclosed.

Facial masks for assisted respiration or CPAP

A substance delivery apparatus (10) for use with a system (12) for supplying breathable gas to a human or animal. The apparatus includes a mechanism (22) to measure the pressure of the supplied breathable gas (22) to detect inhalation by the human or animal; and elements (54, 56, 58, 60) to deliver the substance (52) to the human or animal during inhalation at a pressure higher than the supplied pressure of the breathable gas. A method of delivering a substance (52) is also disclosed.

A combination mouth and nasal mask (40) for assisted respiration or CPAP is disclosed. The combination mask (40) has a frame (42) to the rear side of which is mounted a separate nasal cushion (44) and mouth cushion (46). Both the nasal cushion (44) and the mouth cushion (46) separately form a rolled edge seal around the patient's face in the vicinity of the nose and in the vicinity of the lips. Inlet air is communicated from within the housing (48) to the mouth chamber, circumscribed by the mouth cushion (46) by means of one or more interconnecting tubes (62). The proportion of air communicated to the mouth chamber (48) is controlled by the sizing and number of the tube(s), thus providing for free flow of air, restricted flow of air and pressure equalisation, or zero flow of air. A mouth mask (10) for assisted respiration or CPAP also is disclosed.

Growing community of inventors

Bayview, Australia

Michel Calluaud