Abstract: An interface assembly comprises a nasal mask that includes a seal having a rolling portion. The rolling portion of the seal rolls over a portion of a clip that secures the seal to a frame. The frame has a ball and socket connection to a connector. The connector comprises an elbow having integrally formed exhaust holes and a swivel.

Abstract: In one embodiment, a filter assembly for use in an insufflation system is described. The filter assembly comprises: a filter medium operative to filter medical gases; a housing comprising an inlet, an outlet and the filter medium, the housing defining a gases flow path through the filter medium between the inlet and the outlet; and at least one heating element being positioned in the housing and being configured to heat the filter medium; and wherein, the at least one heating element is spaced apart from the filter medium and from an inner surface of the housing.

Abstract: An electrically conductive plastic (ECP) material can be used to heat water in a reservoir of a respiratory humidifier to encourage heating and/or humidification of gases passing through the respiratory humidifier. The electrically conductive plastic material can at least in part overmould the base and/or walls of the chamber and/or the reservoir of the respiratory humidifier. The reservoir can also partially or fully be formed from the electrically conductive plastic material.

Abstract: In one embodiment, a filter assembly for use in an insufflation system is described. The filter assembly comprises: a filter medium operative to filter medical gases; a housing comprising an inlet, an outlet and the filter medium, the housing defining a gases flow path through the filter medium between the inlet and the outlet; and at least one heating element being positioned in the housing and being configured to heat the filter medium; and wherein, the at least one heating element is spaced apart from the filter medium and from an inner surface of the housing.

Abstract: In one embodiment, there is provided an inlet for a humidification chamber for use in a medical humidification system, the inlet comprising an inlet end configured to receive gases flow from a gases source, an outlet end configured to introduce the gases flow to the inside of the humidification chamber, and at least one wall defining, at least in part, a passageway between the inlet end and the outlet end for conveying gases therebetween. The outlet end of the inlet is configured to terminate in the humidification chamber or at a wall of the humidification chamber, and the passageway is configured to guide the gases flow such that the center of the gases flow at the inlet end and at the outlet end are substantially aligned along a common axis or the outlet end defines a profile of the passageway thereat that has a width and a height, a ratio of the width to height being between about 1:20 and 1:5.

Abstract: A patient interface can have a frame supporting a sealing member. Various features of the sealing member can improve comfort and sealing performance in the context of forming seals with the nares of a user, as well as contact with other facial surfaces. The sealing member can include convex portions, concave portions and thickness variations for providing various sealing, comfort, and deformability effects.

Abstract: A humidifier for delivering humidified gases to a patient includes an inlet, an outlet, a gases flow path extending from the inlet to the outlet, a permeable wall, a liquid reservoir, and a heater. The permeable wall separates the gases flow path from the liquid reservoir. The heater heats liquid stored in the liquid reservoir to form vapour, and the vapour passes through the permeable wall to the gases flow path to humidify gases in the gases flow path. Another inline humidifier for delivering humidified gases to a patient includes an inlet and an outlet and holds a tape made of hydrophilic or hygroscopic material. The tape is pre-soaked with water and can include a heating element. The heating element heats the tape and the stored water to release the stored water as vapour and thereby humidify gases passing through the inline humidifier.

Abstract: A patient interface can have a frame supporting a sealing member. Various features of the sealing member can improve comfort and sealing performance in the context of forming seals with the nares of a user, as well as contact with other facial surfaces. The sealing member can include convex portions, concave portions and thickness variations for providing various sealing, comfort, and deformability effects.

Abstract: A humidifier for delivering humidified gases to a patient includes an inlet, an outlet, a gases flow path extending from the inlet to the outlet, a permeable wall, a liquid reservoir, and a heater. The permeable wall separates the gases flow path from the liquid reservoir. The heater heats liquid stored in the liquid reservoir to form vapour, and the vapour passes through the permeable wall to the gases flow path to humidify gases in the gases flow path. Another inline humidifier for delivering humidified gases to a patient includes an inlet and an outlet and holds a tape made of hydrophilic or hygroscopic material. The tape is pre-soaked with water and can include a heating element. The heating element heats the tape and the stored water to release the stored water as vapour and thereby humidify gases passing through the inline humidifier.

Abstract: A humidifier for delivering humidified gases to a patient includes an inlet, an outlet, a gases flow path extending from the inlet to the outlet, a permeable wall, a liquid reservoir, and a heater. The permeable wall separates the gases flow path from the liquid reservoir. The heater heats liquid stored in the liquid reservoir to form vapour, and the vapour passes through the permeable wall to the gases flow path to humidify gases in the gases flow path. Another inline humidifier for delivering humidified gases to a patient includes an inlet and an outlet and holds a tape made of hydrophilic or hygroscopic material. The tape is pre-soaked with water and can include a heating element. The heating element heats the tape and the stored water to release the stored water as vapour and thereby humidify gases passing through the inline humidifier.

Abstract: A surgical cannula for providing insufflation gases to a surgical cavity of a patient (for example, the pneumoperitoneum) and allowing insertion of medical instruments into the surgical cavity through the cannula can include a heater within or coupled to the cannula. The heater can heat the gases and/or the instruments to raise the temperature of the gases and/or instruments above a dew point of the gases to prevent fogging. The heater can also help to defog a lens of a medical instrument by heating to clear the lens and improve optical clarity.

Abstract: A surgical cannula for providing insufflation gases to a surgical cavity of a patient (such as the pneumoperitoneum), allowing insertion of medical instruments into the surgical cavity through the cannula, and venting gases from the surgical cavity to the outside environment can include venting features including filters to more safely reduce the amount of undesirable materials such as smoke from reaching the outside environment.

Abstract: Various venting attachments or leak devices can be removably or permanently coupled to a surgical cannula to allow a user to vent gases, in particular smoke, from a surgical cavity. The venting attachment can be configured to vent the smoke at a predetermined rate and filter out the smoke prior to venting to atmosphere. The substantially constant venting flow rate can promote clearing of the smoke in the surgical cavity while helping to maintain a substantially constant pressure, and thus stability, in the surgical cavity.

Abstract: Disclosed herein is a surgical cannula configured as an instrument retaining or centering apparatus, configured for providing insufflation gases to a surgical cavity of a patient (such as the pneumoperitoneum) and allowing insertion of medical instruments into the surgical cavity through the cannula. The cannula can include features to direct gas flow in particular directions to prevent or reduce smoke, fog/condensation, or other unwanted media from contacting a portion of a medical instrument.

Abstract: A humidifier for delivering humidified gases to a patient includes an inlet, an outlet, a gases flow path extending from the inlet to the outlet, a permeable wall, a liquid reservoir, and a heater. The permeable wall separates the gases flow path from the liquid reservoir. The heater heats liquid stored in the liquid reservoir to form vapour, and the vapour passes through the permeable wall to the gases flow path to humidify gases in the gases flow path. Another inline humidifier for delivering humidified gases to a patient includes an inlet and an outlet and holds a tape made of hydrophilic or hygroscopic material. The tape is pre-soaked with water and can include a heating element. The heating element heats the tape and the stored water to release the stored water as vapour and thereby humidify gases passing through the inline humidifier.

Abstract: In one embodiment, there is provided a humidification chamber for use in a medical humidification system. The humidification chamber may comprise: a base and a top linked by a side wall to define the chamber, the chamber being configured to contain a volume of water; a gases inlet configured to receive a gases flow from a gases source; and a gases outlet, wherein the gases inlet is orientated relative to the side wall to introduce the gases flow to the humidification chamber at a direction substantially tangential to the side wall of the humidification chamber.

Abstract: A humidification system has a tube configured to transport gases. The tube is configured to be soaked prior to use and has a bead to hold liquid. Heat applied to the bead causes the liquid to be released as vapour. Gases flowing through the tube are heated and humidified by the vapour.