A system for managing fluid levels in phacoemulsification surgery is disclosed. The system comprises a surgical console having at least one system bus communicatively connected to at least one computing processor capable of accessing at least one computing memory associated with the at least one computing processor, and at least one sensor associated with the surgical console for providing at least one signal indicative of the presence of liquid, wherein the at least one sensor is in communication with at least one level sensing device of a cassette associated with the surgical console.

A system for a surgical system is disclosed, comprising system for distributing fluid in a surgical cassette, comprising at least one at least partially deformable bladder at least partially disposed on at least one rigid surface, wherein the bladder forms a portion of a channel, at least a first and second port in fluid communication with the channel, wherein the channel comprises at least two portions having a substantially uniform first dimension separated by a second portion have a second dimension, and wherein at least two pump head rollers are engaged with the bladder.

A system for distributing fluid during a surgical procedure is disclosed, comprising a plurality of valves at least partially enclosed in a surgical cassette, at least one vacuum source fluidly connected to at least one of the plurality of valves, and at least one fluid source fluidly connected to at least one of the plurality of valves, wherein each valve is responsive to at least one received signal indicative of at least one parameter associated with one of fluid pressure and fluid volume.

A system for a surgical system is disclosed, comprising a surgical cassette, comprising a cassette for use with a surgical console, further comprising a first set of fluid channels having a first set of ports, a second set of fluid channels having a second set of ports, at least one rotary valve in fluid communication with the first set of fluid channels, at least one rotary valve in fluid communication with the second set of fluid channels, and a plurality of deformable channels, wherein the deformable channels are fluidly connected to ones of the first set of ports and second set of ports.

A system for a surgical system is disclosed, comprising a system for distributing fluid in a surgical cassette, comprising a first pump head operable by a first drive shaft and a second pump head operable by a second drive shaft, wherein the second drive shaft is at least partially enclosed by the first drive shaft.

A fluid management system for use with a fluid reservoir includes an inflow pump and an outflow pump. The inflow pump is connectable to a probe for delivering a distention fluid to a body cavity. The outflow pump removes the distention fluid through the same probe, thus establishing a re-circulating volume of distention fluid within the body cavity. The removed fluid is filtered and returned to a fluid reservoir for eventual recycling to the body cavity. A controller adjusts the flow rates of the inflow pump and the outflow pump to maintain a pre-selected fluid pressure or volume within the body cavity.

A method and apparatus for injecting saline into an open cavity of a patient's body, and, alternatively, vacuuming fluids from said cavity during laparoscopic surgery that provides constant feed and amplified pressure to provide a steady fluid output, in a disposable, single use handheld surgical device.

A surgical fluid thermal treatment system can be used during a procedure to heat or cool surgical fluid, e.g., prior to introducing the fluid into the body of a patient. In some examples, the system includes an open basin into which fresh surgical fluid is dispensed and a heater that heats the fluid in the basin. The system may also include a volume measurement device that measures the volume of fluid in the basin. The system may have a user interface that a user interacts with to check fresh fluid into the basin. The user may also interact with the user interface to check medical tools into the basin and check medical tools out of the basin. A controller associated with the system can track the volume of fluid removed from the basin during the course of a procedure.

A weighing system for medical applications may include a basin that has a base and a sloped sidewall that collectively form a bounded cavity with open top surface that receives and holds the material to be weighed. The basin may be free floating above the weighing device within a restricted range of travel. In some examples, the weighing system includes a thermal treatment device to adjust the temperature of the material in the basin. The rate at which heat is delivered to the basin may vary depending on the weight of the contents in the basin.

A medical system includes a medical instrument including an irrigation and aspiration channel to carry irrigation fluid to, and remove aspirated matter from, a distal end of the medical instrument, a reservoir to store the irrigation fluid, a receptacle to collect the aspirated matter, and a vane pump including a pump housing having an inner surface around a pumping chamber, the pump housing including irrigation inlet and outlet ports coupled to the pumping chamber and respectively connected to the reservoir and the irrigation channel, and aspiration inlet and outlet ports coupled to the pumping chamber and respectively connected to the aspiration channel and the receptacle, and wherein the vane pump is configured to simultaneously pump via the pumping chamber, at substantially the same flow rate, the irrigation fluid from the reservoir to the distal end and the aspirated matter from the distal end to the receptacle.