A surgical instrument for irrigating a frontal sinus target site of a patient including a handle, an introducer, an irrigation channel, a nozzle, and an actuator assembly. The introducer extends from the handle and defines a proximal segment and a distal segment. At least a portion of the proximal segment is linear and at least a portion of the distal segment is relatively curved. The nozzle is fluidly connected to the irrigation channel, and is rotatably maintained at a distal end of the introducer. The actuator assembly includes an actuator maintained by the handle and connected to the nozzle. Movement of the actuator causes the nozzle to rotate relative to the introducer. The introducer can be sized and shaped in accordance with a size and a shape of a nasal passageway/frontal sinus of a human adult.

A method of determining a pressure of a body cavity with a controller of a fluid management system includes determining a pressure and a volume of a cuff disposed about a collapsible bag, determining a volume of the collapsible bag based on the pressure and the volume of the cuff, and determining a pressure of the collapsible bag based on the volume of the collapsible bag. The method also includes calculating a fluid flow from the collapsible bag into a body cavity from the collapsible bag and determining a pressure of the body cavity based on the fluid flow.

A system for applying a lavage fluid to a surface, the system having a body configured to house a lavage fluid and at least two interchangeable application members configured to be in fluid communication with the body, wherein the at least two interchangeable application members includes a first application member and a second application member, the first application member being configured to dispense the lavage fluid with a first fluid flow force and/or first fluid flow pattern, and the second application member being configured to dispense the lavage fluid with a second fluid flow force and/or second fluid flow pattern that is different from the first fluid flow force and/or fluid flow pattern, respectively.

Disclosed are various embodiments for an anti-reflux enema bag having a pulley restrictor that acts as a waterflow restrictor, where the enema bag is leakproof, easy-to-clean, and provides a steady flow of solution. An enema bag system includes an enema bag, a nozzle comprising a nozzle outlet, and an anti-reflux coupler positioned between the enema bag and the nozzle through which the solution passes from the enema bag to the nozzle outlet. The anti-reflux coupler comprises an inlet for receiving at least a portion of the solution from the enema bag; an outlet for expelling the solution into the nozzle; and a check valve configured to prevent reflux of the solution from the nozzle. The enema bag system further comprises a pulley restrictor configured to selectively control a speed at which the solution is introduced into the nozzle and expelled from the nozzle outlet.

Apparatuses, systems, and methods for instilling a solution to a tissue site are disclosed. In some embodiments, an instillation regulator may be fluidly coupled to a solution source and to a dressing, and the instillation regulator may draw a solution from the solution source during a negative-pressure interval may instill the solution to the dressing during a venting interval.

A liquid ejecting apparatus includes: an inflow channel to which liquid is supplied; an outflow channel communicated with a nozzle; a liquid chamber formed with a spiral flow channel having a substantially constant cross-sectional area between the inflow channel and the outflow channel and having a given volume; a volume changing portion configured to deform the liquid chamber so as to change the volume of the liquid chamber to a volume smaller than the given volume; and an ejection control unit configured to cause the liquid to be ejected from the nozzle in a pulsed manner by driving the volume changing portion in a state in which the liquid chamber is filled with the liquid.

A medical spraying device and method, for irrigating a wound, having a liquid reservoir for a medical irrigation liquid or a connection for such a liquid reservoir and an arrangement for applying pressure to the medical irrigation liquid, such that the irrigation liquid is pushable through a nozzle by the pressure acting on the irrigation liquid in order to produce a spray cone. The nozzle has a plurality of openings, which are arranged at an angle to one another in such a way that the irrigation liquid jets exiting from the openings, at a such flow rate and angle, meet in an atomization space and/or a discharge opening of the nozzle; thus, a spray cone is produced from the atomized irrigation liquid.

A spray canister device includes a canister containing a liquid product, a canister housing having an opening, a chassis element, and a tray slidably coupled to the chassis element. The canister includes an actuator cap and is positioned in the canister housing such that a nozzle of the actuator cap is positioned proximate the opening. The canister housing, and the canister positioned therein, may be engaged with the tray via at least one protruding member. Once engaged, the tray may be slidably moved along the chassis element between a retracted position and an extended position to facilitate relative movement between the canister and the canister housing to compress the actuator cap of the canister and spray the liquid product.

An inline flow control device for passive irrigation tubing to be used with electrophysiology devices, includes an elastically deformable diaphragm that can assume a neutral configuration, a first flexed configuration and a second flexed configuration in response to pressure change upstream or downstream of the diaphragm in self-adjusting the fluid flow to normalize the pressure change. In one embodiment, the diaphragm is unaffixed at least at its peripheral edge to allow the diaphragm to flex at its peripheral edge to vary the fluid flow through the device. In another embodiment, the diaphragm is fixed at its peripheral edge to allow the diaphragm to flex in its inner region to allow different movement of a piston through which the fluid flows in response to pressure changes upstream and downstream of the diaphragm.

A pressure regulation system for discharging a liquid having a predetermined liquid pressure from a liquid opening, including an elastic bag having a liquid phase and a gas phase, where the liquid opening in an operational position of the elastic bag is formed in the lower area of the elastic bag, at least two push elements, at least one drive unit and a control unit. The elastic bag has a gas opening, which extends into the gas phase. The pressure regulation system has a ventilation unit, which is connected to the control unit for communication and which connects to the gas opening of the elastic bag. The ventilation unit regulates the liquid pressure of the liquid discharged through the liquid opening by means of a gas supply into the elastic bag and/or a gas discharge from the elastic bag.