An ophthalmic irrigator-aspirator has a handpiece with aspiration and irrigation openings through its distal end. A tip component connects to the handpiece and has an aspiration cannula. A flexible sleeve has an annular hub for watertight connection to the handpiece or a base portion of the tip. The sleeve has an intermediate portion that forms a channel for an irrigation fluid along the exterior of the cannula to an irrigation port in the sleeve. The distal end portion of the sleeve is sized for a watertight connection over the distal portion of the cannula. Such distal end portion of the sleeve has an aspiration port in communication with the cannula aspiration port. The sleeve proximate, intermediate, and distal portions are integral with each other and are formed of a resilient material that allows the sleeve to be tightly fitted on the handpiece or tip base portion and the cannula.

A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.

A cap and container assembly is disclosed which may be used for human body cavity irrigation or other liquid dispensing activities. The cap may include a first channel extending from a base through a neck portion to an opening in a tip portion of the cap. A side body defining a second channel may extend from the first channel near the neck portion of the cap to an opening at a distal end of the side body. An axial dimension of the tip portion may extend at an angle relative to an axial dimension of the neck portion. Liquid may flow out of the first channel under the influence of gravity and as a result of control of air flow into the second channel.

Fluid management systems are disclosed that include software-controlled, electro-mechanical devices used in combination with single-use or multi-use tubing sets. Functions of the fluid management systems can include fluid pressurization, fluid warming, fluid deficit monitoring (including flow-based and weight-based), suction, fluid collection, and fluid evacuation (including indirect-to-drain and direct-to-drain options). The systems can be configured based on the surgical environment (e.g., operating room or physician office) as well as other user needs and/or preferences.

An irrigation system for anal or stomal irrigation includes a tubing system attachable between a reservoir and a catheter. The tubing system has a proximal portion attachable to the reservoir and a distal portion including a distal end that is attachable to the catheter, with the tubing system providing an irrigation flow path from the proximal portion attachable to the reservoir through the distal end attachable to the catheter. A pump is operable to move the liquid through the irrigation flow path to provide the anal or stomal irrigation out of the catheter. A pressure control device is attachable to the distal portion of the tubing system and communicates with the catheter. The pressure control device has a valve that is adapted to limit an irrigation pressure for the anal or stomal irrigation out of the catheter to a value less than a pre-determined pressure threshold.

A phacoemulsification system includes a pump and a processor. The pump includes: (i) a first chamber having a first volume and configured to flow a first fluid at a first flow rate, between a first reservoir and an eye of a patient, and (ii) a second chamber having a second volume and configured to flow a second fluid at a second flow rate, between a second reservoir and the eye. The processor is configured to control the pump to: (i) set a first flow rate of the first fluid in the first volume, so as to obtain a predefined intra-ocular pressure (IOP) in the eye, (ii) based on the first and second volumes and on the first flow rate, calculate a second flow rate of the second fluid that maintains the predefined IOP constant, and (iii) set the calculated second flow rate to the second fluid.

A controller for a body cavity irrigation system, where the system features a reservoir containing an irrigation liquid and a catheter, includes a housing with a dial attached to the housing and movable between positions corresponding to stages of a body cavity irrigation procedure. The controller is in communication with an electromechanical pump and at least one electromechanical valve that are in fluid communication with the reservoir and the catheter so that the electromechanical pump and at least one electromechanical valve are configured to perform a stage of the body cavity irrigation procedure corresponding to the selected dial position.

A method for operating a fluid management system includes automatically detecting an unstable condition in the system, which may include detecting a large change in the supply fluid amount (indicative of a bag change), detecting a large change in the waste fluid amount (indicative of a bag change), or detecting a large difference between the amount of fluid dispensed as measured by the weight data and the amount of fluid dispensed as measured by the flow data (indicative of a blockage in the supply tubing). The method further includes adjusting the operating mode of the system during the unstable condition, which may include switching to using flow data rather than weight data to track the fluid deficit during a supply bag exchange, halting operation of an outflow pump during a waste container exchange, and/or halting operation of the system during a blockage in the supply tubing.

Apparatus, kits, and methods for administering a substance are presented. A device for administering a substance includes an elongated body having a proximal end and a distal end, the elongated body defining an internal chamber extending between the proximal end and the distal end to direct the substance to the distal end, the distal end to connect with a tip, the tip to be at least partially inserted into an orifice of a body lumen of a subject, the tip having a shape configured to reduce leakage of the substance from the orifice upon the at least partial insertion. The tip includes an opening to pass the substance from the internal chamber into the body lumen; and a transducer to emit an ultrasound wave from the tip into the body lumen, thereby administering the substance to tissue in the body lumen.

A system for applying a lavage fluid to a surface, the system having a body for housing a lavage fluid, an application member in fluid communication with the body, the application member being configured to dispense the lavage fluid along a flow path, and a venting component, the venting component having a fluid channel configured to provide fluid communication between the body and an external environment, and at least one filter provided relative to the fluid channel sufficient to filter gas, such as air, passing through the fluid channel, at least a portion of the fluid channel being separate from the flow path.