A dual amplifier apparatus is disclosed. The apparatus includes an energy module having a controller and a first and second power amplifier circuit coupled to the controller. The first and second power amplifier circuits are configured to receive and amplify an input signal to generate a first output signal into a load coupled to the output of the first and second power amplifier circuit. A power rating of the first amplifier circuit is different from a power rating of the second amplifier circuit. The controller is configured to select the first or the second power amplifier circuit.

Systems and methods for dynamically modulating aspiration in response to sensed conditions. An aspiration system can include a catheter configured to be inserted within a vasculature of the subject, a canister coupled to the catheter, a pressure source that generates a vacuum pressure through the catheter for aspirating the fluid, a sensor configured to sense a parameter associated with at least one of the catheter, the canister, or the pressure source, and a computer system coupled to the sensor. The computer can cause the pressure source to initiate the vacuum pressure throughout the catheter, receive a measurement of the parameter from the sensor, determine whether the measurement violates a threshold associated with the parameter, and modulate the vacuum pressure at the catheter tip in response to a determination that the measurement violates the threshold.

An apparatus for controlling an electroporation catheter is provided. The electroporation catheter includes a distal end, a proximal end, a plurality of splines extending from the distal end to the proximal end, and a plurality of electrodes arranged on the plurality of splines and defining at least one quadripolar array, each quadripolar array defined by four electrodes of the plurality of electrodes. The apparatus includes a pulse generator coupled to the electroporation catheter, and a computing device coupled to the pulse generator, the computing device operable to control the pulse generator to selectively energize the electrodes defining the at least one quadripolar array according to a first energization pattern, and selectively energize the electrodes defining the at least one quadripolar array according to a second energization pattern, wherein the first and second energization patterns are different from one another.

An electrocautery unit for connecting to a handle of an electrocautery device, the unit comprises a body, a light unit and an electrode. The body has a body proximal end and a body distal end, and a body axis extending lengthwise along the center of the body. The body's proximal end comprises a connecting element for connecting said body to a handle having a handle axis extending lengthwise along the center of the handle, so that said body axis is coaxial with said handle axis when said body is connected to said handle. The light unit may be constructed and arranged to emit a light having a central axis coaxial with said body axis. The electrode comprises a proximate end connected to the body distal end, and an electrode tip at a distal said. When the electrode is connected to the body, the electrode lays outside of the body axis and extends into said body axis such that the electrode tip is within said body axis, wherein said light and said electrode tip are coaxial to said body axis and said handle axis.

A surgical system for performing a capsulotomy of a lens capsule of an eye includes an elastic ring, a suction cup, an interface, a converter, and a control console. The elastic ring includes a conductive surface. The interface may be coupled to an air port and/or a fluid line of a phacomachine. The converter detects a pulse of air from the phacomachine via the interface, and produce an electrical signal in response. Fluid received from the phacomachine is delivered into the suction cup. The system is configured to remove the fluid from the suction cup and between the suction cup and a surface of the eye to form a suction seal. The control console is configured to, in response to receiving the electrical signal, drive a series of electrical pulses through the conductive surface of the elastic ring, causing the elastic ring to perform a tissue cutting operation.

An ultrapolar telescopic electrosurgery pencil that can be used in both monopolar and bipolar modes for cutting and coagulation. The ultrapolar telescopic electrosurgery pencil can operate at very low power levels (such as 15-20 Watts or less) to both cut and coagulate tissue thereby reducing patient risk and damage to tissue. An ultrapolar electrosurgery blade having a top, a bottom, opposing planar sides, a cutting edge, and a non-cutting end, an active electrode positioned on one of the opposing planar sides such that at least a portion of the opposing planar side is exposed near the cutting edge, and a return electrode positioned on the other opposing planar side such that at least a portion of the other opposing side is exposed near the cutting edge.

A multifunctional surgical instrument (1) is provided. The multifunctional surgical instrument (1) comprises a proximal portion (13) and two legs (14), each leg comprising a distal end (11, 12), wherein a default position of the multifunctional surgical instrument is an open position, wherein the distal ends (11, 12) of the legs (14) do not meet in the open position, characterized in that each leg (14) comprises an aspiration half-channel (26, 27), the proximal portion (13) comprises an aspiration connection (29) and at least one of the distal ends (11, 12) comprises at least one aspiration orifice (28), wherein the two half-channels (26, 27) are configured to form an air-tight and water-tight continuous channel (25) connecting the at least one aspiration orifice (28) to the aspiration connection (29) when the multifunctional surgical instrument is in a fully closed position and are configured to open the aspiration channel (25) when the multifunctional surgical instrument is not in the fully closed position.

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

The present disclosure relates to an end effector for an electrosurgical instrument, comprising an electrode assembly for delivering a radio-frequency (RF) power signal to a surgical site, the electrode assembly comprising an active electrode, a return electrode, and an insulating element in between the active electrode and the return electrode, the active electrode comprising an aperture which provides access to a suction channel extending through the insulating element to a lumen for carrying fluid from the surgical site, wherein the lumen is at least in part defined by an inner surface of the return electrode, wherein the electrode assembly is configured to conduct electrical current between the active electrode and the return electrode via a first current path through the suction channel when the RF power signal is supplied to the electrodes.

Surgical systems can include evacuation systems for evacuating smoke, fluid, and/or particulates from a surgical site. A surgical evacuation system can be intelligent and may include one or more sensors for detecting one or more properties of the surgical system, evacuation system, surgical procedure, surgical site, and/or patient tissue, for example.