Methods and apparatuses for automatically switching different aspiration levels to an ocular probe are disclosed herein. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level. Control feed back of the pumps may be varied according to set thresholds.

The present invention is directed to improved methods, devices, and systems for eye surgery. In some embodiments, the invention may provide new and/or improved devices, systems, and methods for detecting surgical fluids in a fluidics cassette, particularly cassettes which are used to couple an eye treatment probe to an eye treatment console. Rather than relying on internal reflection by a gas-liquid interface, the fluid detection techniques described herein may make use of the changes in propagation of light through a portion of the holding tank when the portion varies between empty and full. Other aspects of the invention may provide devices, systems, and methods for producing different types of fluidics cassette using a single cassette body type.

A portable drain system having a subdermal drain and a container in fluid communication with the subdermal drain is disclosed. The subdermal drain is configured to drain fluid from a surgical site. The container provides a negative pressure to the subdermal drain. The container draws and receives the fluid. The container includes at least one sensor in which the at least one sensor is configured to detect at least one of fluid color, fluid volume in the container, and orientation of the container.

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.

Provided for may be a pump failsafe apparatus for use with a pump motor, the pump failsafe apparatus comprising a foot pedal configured to generate a first signal when depressed and a second signal when released. The apparatus may comprise a power supply having an internal logic controlled power switch, the power supply in electrical communication with at least the pump motor, wherein the internal logic controlled power switch includes an active state (ON) and an inactive state (OFF). The apparatus may further include an overspeed detector, an under voltage detector in electrical communication with at least the power supply, the under voltage detector configured to measure a logic voltage, and a pump cartridge detector.

A valve assembly for controlled drainage or delivery of a fluid from or to a patient including a first port (182), a second port (184), a diaphragm chamber and a diaphragm (132) dividing the diaphragm chamber into a first chamber cavity (158A) and a second chamber cavity (158B). The diaphragm being deflectable toward a first wall of the diaphragm chamber wherein the first chamber cavity contracts and the second chamber cavity expands, and oppositely toward a second wall of the diaphragm chamber wherein the second chamber cavity contracts and the first chamber cavity expands. A valve (212) is actuatable between a first actuation state that establishes fluid communication between the first port and the second chamber cavity and separately between the second port and the first chamber cavity. The valve also having a second actuation state that establishes fluid communication between the first port and the first chamber cavity, and separately between the second port and the second chamber cavity.

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 medical waste collection system for collecting medical waste material, and a manifold for filtering the waste material and/or coupling a suction tube to the system. The system may include a receiver in which the manifold is configured to be inserted in a proximal direction to facilitate an inlet mechanism moving correspondingly in the distal direction. The manifold may include an arm, a spine, a lock element, and/or a catch each having a surface with a relative position in the proximal-to-distal direction. The rim and the catch may be spaced apart by a void, and the rim may be positioned below the catch. The housing may include a body portion, a first leg extending proximally from the body portion, and a second leg spaced apart from the first leg to define the void. The rim may be on the first leg, and the catch may be on the second leg.

A fluid management cassette includes a cassette body configured for insertion into a cassette bay of a control console, the cassette body including a face plate having at least one fluid input port and at least first and second fluid output ports defined therethrough. A pump is disposed within the cassette body as is a valve manifold, first and second pinch valves, or at least one pressure sensitive valve. First and second fluid flow paths extending through the cassette body have shared connections to the pump and separate connections to the respective first and second fluid output ports. The valve manifold, first and second pinch valves, or at least one pressure sensitive valve is selectively actuatable to at least four different configurations to permit fluid flow along either, neither, or both of the first and second fluid flow paths.

A cassette for retrieving plural tissue samples from a fluid stream. The cassette includes a bypass conduit and plural voids. A catch tray is removably seated in each of the voids. A fitting extends from the cassette. The cassette has an outlet opening through which a suction is drawn. The cassette also has a valve. The valve directs the fluid stream from the fitting so the fluid stream flows through the bypass conduit or through one of the voids in which a catch tray is seated.