Described are gas flow disruption alarms. The alarms can include a gas inlet; a gas outlet configured to couple to a gas delivery device; and a vibration member between the gas inlet and the gas outlet configured to produce an audible sound when a gas delivery device is removed from the gas outlet.

A breath-enhanced jet nebulizer is configured with a low liquid retention reservoir and a narrow liquid delivery passage to efficiently and efficiently aerosolize small drug volumes with minimal waste. Aerosol particles are directed through aerosol passage for delivery, although larger liquid particles are directed away from the aerosol outlet and recycled to the liquid reservoir.

A cleaning catheter insertable into a ventilation tube and an input module are provided, the input module coupled to the cleaning catheter and including (i) an inflation module, including an inflation chamber and a one-way air inlet valve; (ii) a flow regulator operable to assume first and second fluid-control states; and (iii) a mechanical user control element operable (a) to mechanically and non-electrically set the fluid-control states, (b) to assume first and second configurations, and (c) to mechanically and non-electrically increase pressure in an interior of an inflation chamber of the cleaning catheter during a transition of the mechanical user control element from the first configuration to the second configuration. The one-way air inlet valve is arranged to allow air to flow into the inflation chamber during a transition of the mechanical user control element from the second configuration to the first configuration.

Described are gas flow disruption alarms. The alarms can include a gas inlet; a gas outlet configured to couple to a gas delivery device; and a vibration member between the gas inlet and the gas outlet configured to produce an audible sound when a gas delivery device is removed from the gas outlet.

In one example embodiment, a reduced pressure treatment system includes a housing defining a regulated chamber and a charging chamber in fluid communication with the regulated chamber. The charging chamber is configured to be supplied with a reduced pressure, and the regulated chamber is configured to regulate the reduced pressure to a desired reduced pressure and provide the desired reduced pressure to a treatment site. A housing extension adjacent to the charging chamber encloses a feedback module that includes a pressure sensor in fluid communication with the charging chamber. The feedback module monitors the reduced pressure within the charging chamber and generates at least one of an audible warning and a visual warning based on the reduced pressure within the charging chamber.

The present invention connects to tubing through which gas flows to a patient. An alert notifies monitoring personnel that oxygen flow to the patient has been interrupted, because the tubing has been disconnected. The invention comprises an adapter that is connected to a gas or oxygen source and a nipple over which the tubing fits and through which oxygen flows to the patient. When the tubing becomes disconnected from the nipple, the oxygen flow actuates an alert. The invention includes a fixed arm, a swing arm, and a spring. When the tubing becomes disconnected, the swing arm pivots and causes a switch actuator to engage a switch that sends a signal to an alert. The alert can be audible or visual.

A respiratory gas flow coupling includes a device connector having a female receptacle or male nipple with a side-oriented leak path. A patient accessory connector has a male nipple or female receptacle adapted to connect with the female receptacle or male nipple of the device connector. The patient accessory connector seals the side-oriented leak path of the female receptacle or male nipple of the device connector when the patient accessory connector is connected with the device connector. The side-oriented leak path is disposed at a position such that a shorter male nipple or female receptacle of an incompatible patient accessory connector which is shorter than the male nipple of the patient accessory connector does not seal the side-oriented leak path when the incompatible patient accessory connector with the shorter male nipple is connected with the device connector.

Systems, methods, and apparatuses for providing feedback for reduced-pressure treatment of a tissue site are described. A regulator may include a supply chamber fluidly coupled to the dressing, a control chamber fluidly coupled to the dressing, a charging chamber fluidly coupled to the supply chamber through a port, and a regulator valve operable to control fluid communication through the port based on a pressure differential between the control chamber and a therapy pressure. The feedback system may include one or more mechanical feedback interfaces fluidly coupled to the regulator to provide a signal of at least one of an application of reduced-pressure therapy, a leak condition, a blockage condition, and a canister full condition.

The present invention connects to tubing through which gas flows to a patient. An alert notifies monitoring personnel that oxygen flow to the patient has been interrupted, because the tubing has been disconnected. The invention comprises an adapter that is connected to a gas or oxygen source and a nipple over which the tubing fits and through which oxygen flows to the patient. When the tubing becomes disconnected from the nipple, the oxygen flow actuates an alert. In one embodiment, the invention includes a fixed arm and a swing arm. A latch and a spring that pull the fixed arm and swing arm toward each other connect the two arms. When the tubing becomes disconnected, one arm rotates and activates a switch that sends a signal to an alert that is preferably audible.

A gas flow indicator for medical equipment is described which is configured to provide an audible indication of gas flow. The medical equipment may be in the form of a respiratory care device, an airway management device, a heat moisture exchanger, an oxygen enrichment device or a breathing mask.