Fisher & Paykel Healthcare Limited

Laith Adeeb Hermez

Samantha Dale Oldfield

Matthew Jon Payton

Craig Karl White

Thomas Heinrich Barnes

Callum James Thomas Spence

Alicia Jerram Hunter Evans

Dexter Chi Lun Cheung

Milanjot Singh Assi

Timothy Dee Gierke

Kieran Michael Orchard

Bruce Gordon Holyoake

Taylor James Edwards

Aidan Robert Burgess

Geraldine Frances Keogh

German Klink

Anil Patel

Seyed Ahmad Reza Nouraei

Laurence Gulliver

David John Sims

Matthew John Payton

Penelope Jane Maxwell

Kevin Peter O'Donnell

Dean Antony Barker

Hamish Adrian Osborne

Russel William Burgess

Michael John Andresen

Stephen David Evans

Anthony James Newland

Michael Robert Barraclough

Robert Stuart Kirton

Joel Michael Lawson

Rachael Glaves

Alireza Nejati Javaremi

Kevin Peter O'donnell

Rachel Glaves

Taylor Jamer Edwards

An apparatus for oxygenation and/or CO2 clearance of a patient. The apparatus comprising: a flow source or a connection for a flow source for providing a gas flow, a gas flow modulator, a controller to control the gas flow. The controller is operable to: receive input relating to heart activity and/or trachea gas flow of the patient, and control the gas flow modulator to provide a varying gas flow with at least two oscillating components. One oscillating component has a frequency based on the heart activity and/or trachea flow of the patient. One oscillating component has a frequency to: promote bulk gas flow movement, or promote mixing.

Methods and apparatus for oxygenation and/or CO2 removal

A respiratory system includes a first patient interface for delivery of a flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device that switches the system between a first respiratory mode and a second respiratory mode. In the first respiratory mode, the flow of gases are delivered to an outlet of the first patient interface when the second patient interface is absent from the patient. In the second respiratory mode the device reduces or stops delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.

User interface and system for supplying gases to an airway

The present disclosure relates to determining a corrected exhaled gas measurement during high flow respiratory therapy. Measuring exhaled gas concentration during high flow respiratory therapy is difficult and inaccurate due to a phenomenon known as flushing. The high flows delivered to the patient flush the dead space in the conducting airways, which causes a dilution effect that results in underestimated or overestimated exhaled gas measurement depending on the gas composition delivered by the high flow system. This can lead to incorrect clinical measurements and diagnoses. Various algorithms are disclosed herein to account for the dilution effect caused by flushing, allowing for the method of measuring gas concentrations to still be used accurately for clinical measurements.

Exhaled gas measurement compensation during high flow respiratory therapy

The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.

New medical circuit components and methods for forming such components are disclosed. These components include microstructures for humidification and/or condensate management. The disclosed microstructures can be incorporated into a variety of components, including tubes (e.g., inspiratory breathing tubes and expiratory breathing tubes and other tubing between various elements of a breathing circuit, such as ventilators, humidifiers, filters, water traps, sample lines, connectors, gas analyzers, and the like), Y-connectors, catheter mounts, humidifiers, and patient interfaces (e.g., masks for covering the nose and face, nasal masks, cannulas, nasal pillows, etc.), floats, probes, and sensors in a variety of medical circuits.

Medical components with microstructures for humidification and condensate management

Breathable medical circuit components and materials and methods for forming these components incorporate breathable foamed materials that are permeable to water vapor and substantially impermeable to liquid water and the bulk flow of gases. The materials and methods can be incorporated into a variety of components, including tubes, Y-connectors, catheter mounts, and patient interfaces and are suitable for use in a variety of medical circuits, including insufflation, anesthesia, and breathing circuits.

Components for medical circuits

Described is an apparatus for oxygenation and/or CO2 clearance of a patient, comprising: a flow source or a connection for a flow source for providing a gas flow, a gas flow modulator, a controller to control the gas flow, wherein the controller is operable to: receive input relating to heart activity and/or trachea gas flow of the patient, and control the gas flow modulator to provide a varying gas flow with one or more oscillating components with a frequency or frequencies based on the heart activity and/or trachea flow of the patient.

A system for humidifying respiratory gases has a humidification apparatus, a humidification chamber, a heating apparatus and a sensor. The sensor is configured to determine a characteristic of the gases flow and communicate this to a controller which controls the power supplied to the heating apparatus with respect to information regarding the characteristic of the gases flow. A structure partially encloses the humidification chamber and allows energy loss through a wall of the humidification chamber. The humidification chamber may have features to promote heat loss through the wall of the chamber.

Humidification of respiratory gases

This invention relates to a method or system for providing an indication or establishment of airway patency of a patient comprising monitoring of at least one targeted gas (e.g. CO2, N2 or may be other gases capable of being detected, monitored, and measured) that is being expired or being expelled from an airway of a patient (e.g. an apnoeic or non-spontaneously breathing patient), and based on measurements of the at least one targeted gas for a period of time, providing an indicator as to an output of the measurements of the at least one targeted gas for the period of time, or a determination as to airway patency, or a determination as to a location of a blockage or obstruction in the airway, or combinations of these.

System for determining airway patency

Growing community of inventors

Auckland, New Zealand

Laith Adeeb Hermez