A phacoemulsification system includes a console connected to a hand piece that has an ultrasonically vibrated cutting tip. The console generates an ultrasonic electrical signal for the cutting tip, provides irrigation fluid and is the source of aspiration force. The console also has a pressure sensor. The control system has automatic operation such that the aspiration force lowers when a first preset pressure limit is reached, and the aspiration force and ultrasonic vibration are turned off at a second preset pressure limit higher than the first. The control system also lowers the aspiration force initially when a change in pressure per unit of time exceeds a preset limit and then increases the aspiration flow if the pressure level drops below the limit.

A phacoemulsification probe for use with eye surgery comprises a connector for interconnecting the probe with a phacoemulsification machine. A probe tip has a first end with a first central axis running therethrough connected with the connector and a second end with a second axis running therethrough. The second axis is at a predetermined angle to the first central axis. The probe tip further includes a body defining a channel therein for aspirating material from a surgical region within an eye through an opening in the second end along a first vector. The body includes a straight portion around the central axis connected to the first end and a curved portion connecting the straight portion to the second end. A fluid sleeve surrounds at least a portion of the probe tip and has a first end and a second end. The fluid sleeve has a first portion at the first end having a first diameter that prevents a fluid from flowing between the fluid sleeve and the body of the probe tip. The fluid sleeve further has a second portion having a second diameter that defines a channel between an inner surface of the fluid sleeve and an outer surface of the body of the probe tip for injecting a fluid into the surgical region within the eye. The fluid sleeve defines at least one opening for injecting the fluid from the channel into the surgical region of the eye along at least one second vector.

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.

Disclosed herein are systems, devices, and methods for the removal of objects from the body. The device may be a urethral catheter configured to aspirate kidney stones from the urinary tract through one or more aspiration ports at the distal face or along a lateral side of the catheter. The catheter may include one or more irrigation ports at the distal face or along the lateral side of the catheter for dislodging kidney stones. The device may be steerable. The spatial arrangement of the one or more irrigation ports with respect to the one or more aspiration ports may vary. The device may include an irrigation tube and/or a shield member configured to spatially confine the kidney stones adjacent the catheter. Various temporal patterns of aspiration and irrigation are disclosed for optimizing removal of kidney stones.

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, system and method for a phacoemulsification handpiece. The phacoemulsification handpiece may include: a proximal portion having a longitudinal axis, and a first end and a second end, wherein at least aspiration, irrigation and power connectors couple with the first end; a distal portion along the longitudinal axis and comprising a coupling configured to couple a needle with the distal portion; and a lever connectively associated with the coupling extending outwardly from the coupling through the distal portion, wherein actuation of the outwardly extending aspect of the lever provides a rotation of the coupling independent of rotation of the distal portion.

A system for adapting a tubular surgical device for grasping by a surgical instrument is provided that has a distal portion, an adaptor positioned proximally and configured to be disposed about or within a lumen of the tubular surgical device, which has an effective durometer to resist crushing by the surgical instrument. In some embodiments, the adaptor is configured with an external diameter greater than the internal diameter of the lumen of the tubular surgical device. In some embodiments, the adaptor is configured with an external diameter less than or equal to the internal diameter of the tubular surgical device.

A tissue resecting instrument includes a housing, a shaft rotatable relative to the housing and defining a proximal end portion disposed within the housing and a distal end portion distally-spaced from the housing, a cutting member operably associated with the distal end portion of the shaft, a turbine disposed within the housing and operably associated with the proximal end portion of the shaft, and a fluid outflow tube operably associated with the housing. The fluid outflow tube is adapted to connect to a suction source to enable the suctioning of fluid and resected tissue proximally through a lumen of the shaft, an interior of the housing, and into the fluid outflow tube. The turbine is configured such that proximal fluid flow across the plurality of fins of the turbine urges the turbine to rotate, thereby rotating the shaft relative to the housing to enable tissue resection with the cutting member.

A system for cleansing wounds with a fluid jet includes a pressure pump (900) for generating a fluid jet, a handpiece body (200) with a nozzle (204) for emerging the fluid jet, a fluid line (90) connecting the pressure pump (900) with the handpiece body (200), an adapter (700) holding a porous body (510), the adapter (700) being releasably connected to the handpiece body (200). The adapter (700) and the porous body (510) comprise a free inner space (770, 570) into which the fluid jet emerges when leaving the nozzle (204). The adapter (700) is at least partially transparent, thereby enabling a view into the inner space of the adapter and the porous body. The system according to the invention combines the advantages of cleansing by a fluid jet with the advantages of mechanical cleansing and, at the same time, provides effective protection against aerosols.

A tool is attachable to a bladder irrigation catheter. A body supports multiple fluid pathways between each of the catheter, a supply of irrigation fluid and a waste fluid collector. A syringe or other pressure and vacuum applicator accesses the pathways and powers irrigation flow. A supply port and intake port are connected to a supply pathway leading to the applicator. Similarly, a drain port and discharge port are connected to a drain pathway leading to the applicator. The supply pathway and drain pathway can be selectively blocked so that action of the applicator only drives supply or drain irrigation action. Check valves are located to provide proper fluid flow direction. Bypasses between the supply port and intake port and between the drain port and discharge port can be activated to bypass the supply pathway and drain pathway and allow for gravity flow bladder irrigation through the tool.