Aspects of the instant disclosure relate to an electrophysiological catheter system for performing diagnostics and therapies within a cardiac muscle; more specifically, to a deformable body, at a distal end of a catheter, that deforms in response to a force being exerted upon a tip of the catheter. The deformation of the deformable body being measured by a measurement device, and the deformation associated with both a magnitude and vector of the force exerted upon the catheter tip.

A surgical instrument system is disclosed comprising a plurality of outputs driven by an input. The input is selectively engaged with the outputs by a shifting system.

Surgical clip appliers are disclosed comprising a plurality of clips which are stored in a compressed state. When a stored clip is moved into the crimping chamber of the surgical clip applier, the clip can assume a configuration which is different than its stored configuration before it is crimped.

Disclosed are systems, devices, and methods for interdigitation of waveforms for dual-output electrosurgical generators. Such methods may comprise outputting DC energy from a power supply, converting DC energy from the power supply, by a plurality of amplifiers coupled to the power supply, into a plurality of RF waveforms, and controlling the plurality of RF amplifiers to interdigitate the first and second RF waveforms.

The present disclosure provides electroporation systems and methods of energizing a catheter for delivering electroporation. A catheter for delivering electroporation includes a distal section and an electrode assembly. The distal section is configured to be positioned in a vein within a body. The vein defines a central axis. The electrode assembly is coupled to the distal section and includes a structure and a plurality of electrodes distributed thereabout. The structure is configured to at least partially contact the vein. Each of the electrodes is configured to be selectively energized to form a circumferential ring of energized electrodes that is concentric with the central axis of the vein.

Apparatus, consisting of a power supply having a first electrical connection to a relatively high voltage source and connectable to ablation circuitry in a catheter via a second electrical connection. There are rechargeable first and second subsidiary power sources in the power supply. The apparatus also has a control unit, and a first switch alternately connecting the ablation circuitry to the first and second subsidiary power sources responsively to control signals from the control unit. The apparatus also has a second switch alternately connecting one of the first and second subsidiary power sources to the high voltage source for recharging thereof responsively to the control signals while the one of the first and second subsidiary power sources is disconnected from the ablation circuitry and another of the first and second subsidiary power sources is connected to the ablation circuitry by the first switch.

An improved footswitch is provided to control multiple functions of an electrosurgical instrument simultaneously. The footswitch comprises one or more pedals that are configured to control the functions of the instrument, wherein at least two of the functions can be activated at the same time. For example, the pedals may be arranged to activate a mechanical shaver function, and at the same time activate one or both of an RF cutting function and an RF coagulation function.

A surgical instrument system comprising a handle assembly is disclosed. The handle assembly comprises an actuation trigger comprising a curved proximal portion and a curved cylinder surrounding the curved proximal portion of the actuation trigger. The curved cylinder comprises an electroactive polymer. The surgical instrument system comprises an actuation rod which is configured to transmit an actuation force and a sensor system which is configured to detect the magnitude of the actuation force. The electroactive polymer is responsive to the actuation force and provides feedback to a user of the surgical instrument system.

An electrosurgical instrument includes a jaw member having an electrically conductive tissue sealing plate configured to operably couple to a source of electrosurgical energy for treating tissue. A polydimethylsiloxane coating having a thickness in the range of from about 35 nm to about 85 nm is disposed on the tissue sealing plate.

The present disclosure provides electroporation systems and methods of energizing a catheter for delivering electroporation. A catheter for delivering electroporation includes a distal section and an electrode assembly. The distal section is configured to be positioned in a vein within a body. The vein defines a central axis. The electrode assembly is coupled to the distal section and includes a structure and a plurality of electrodes distributed thereabout. The structure is configured to at least partially contact the vein. Each of the electrodes is configured to be selectively energized to form a circumferential ring of energized electrodes that is concentric with the central axis of the vein.