An apparatus and method of detecting an interchangeable tip of a handpiece of an ocular surgical system is disclosed. The interchangeable tip of the system includes an irrigation port that receives fluid flowing from an irrigation source and an aspiration port that removes or aspirates fluid and/or materials from the surgical field, in particular a patient's eye, through use of an aspiration source or pump. The method comprises attaching the interchangeable tip to the handpiece, introducing fluid flow into the system and determining the fluid flow rate of fluid flow in the system, determining the pressure of fluid flowing into the interchangeable tip, determining the pressure of fluid flowing out of the interchangeable tip and comparing the flow rate and pressure information to known flow rate and pressure readings of known types of interchangeable tips to determine the type of interchangeable tip being used.

A wound therapy system is configured to deliver fluid to a wound site and remove fluid from the wound site. The wound therapy system includes a combined fluid delivery and removal line fluidly coupled to the wound site and a peristaltic pump coupled to the combined fluid delivery and removal line. The peristaltic pump is configured to operate in a first direction to deliver instillation fluid to the wound site via the combined fluid delivery and removal line and operate in a second direction opposite the first direction to remove fluid from the wound site via the combined fluid delivery and removal line.

Various exemplary methods, systems, and devices for joint to pump elevation level user interfaces, autocalibration for joint elevation, and joint pressure estimation are provided. In general, an arthroscopic pump can be configured to estimate fluid pressure at a surgical site, e.g., at a joint, to provide an accurate indication of fluid pressure to users. In an exemplary embodiment, the fluid pressure estimation is based on a fluid pressure measurement at the pump that is adjusted at the pump, e.g., by a processor at the pump that executes instructions stored in a memory at the pump, using one or more control algorithms that adjust for one or more factors, such as pressure loss in tubing and sheath through which fluid flows between the pump and the surgical site and elevation difference between the pump and the surgical site.

A control apparatus for an ophthalmic surgical system includes a receiver module which received a signal containing at least one geometric size of a pupil of an eye to be treated at least at a first time during a surgical procedure on the eye, at which fluid is supplied to and/or removed from the eye to be treated on the basis of set values of fluidic parameters of a fluidic apparatus. An evaluation unit allows the signal with the geometric sizes of the pupil to be compared to a geometric reference size of the pupil. An output module outputs an output signal of the evaluation unit, which contains information in respect of the geometric size of the pupil and/or information in respect of the above comparison to a control unit of the ophthalmic surgical system.

A levelling device for positioning of a medical device in relation to a patient is disclosed. The levelling device comprises a tube having fluid communication between a first end and a second end, wherein the first end is configured for connection to the medical device and the second end is configured for connection to the patient. The levelling device comprises a control unit connected to a sensor, wherein the sensor is configured to transmit sensor data to the control unit which is indicative of a pressure difference between the first and second end of the tube, and an actuator connected to the control unit, wherein the actuator is configured to connect to the medical device and to arrange a position of the medical device in relation to the patient in dependence on said pressure difference.

A system and method for detecting and/or capturing a cassette is disclosed. The cassette capture mechanism may be used with a surgical console of a surgical system, wherein the system has a cassette receiving area having at least two alignment sensors and a plurality of capture plungers; and at least two capture hooks which may engage with a cassette, wherein at least one of the at least two alignment sensors produces a signal indicative of the presence of a cassette.

Ophthalmic surgical devices, systems, and methods for regulating aspiration from a patient's eye are provided. A vacuum pump in fluid communication with an aspiration line provides fluid aspiration from a vitreous chamber of the eye through the aspiration line. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the aspiration in response to changes in the IOP, such as by controlling the vacuum pump. The controller may determine whether a fluid infusion to the vitreous chamber through an infusion line is below a maximum infusion level, regulate the infusion in response to the IOP being below a threshold value and the infusion being below the maximum infusion level, and regulate the aspiration in response to the IOP being below the threshold value and the infusion being at or above the maximum infusion level.

An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The associated wound dressing and cleansing means are conformable to the wound, and may have irrigant fluid circulated from a reservoir by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.

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 surgical cassette for use with a phacoemulsification system having a front plate, a back plate, and a gasket therebetween. The front plate having molded fluid channels that mate with the gasket. The gasket having multiple valves and a sensor or diaphragm accessible through the back plate.