The treatment tool including: a tube including a lumen extending in a longitudinal axis of the tube; a wire inserted into the lumen and extending along the longitudinal axis of the tube; a first handle connected to a proximal end portion of the wire; a second handle attached to a proximal end portion of the tube. In a first configuration, the first handle is rotatable relative to the second handle about a rotation axis. In a second configuration, the first handle is non-rotatable relative to the second handle when an applied force applied to the first handle in a rotation direction is equal to or less than a predetermined amount. The first handle is rotatable relative to the second handle when the applied force is greater than the predetermined amount.

A surgical instrument includes a light guide configured to convey light energy, a lens configured to focus the light energy into a light beam, a mounting tube, a jaw assembly coupled to the mounting tube, and a handle assembly. The jaw assembly includes a first jaw member non-movably secured to the mounting tube, a second jaw member movably secured to the mounting tube, and a window secured to the first jaw member and forming a tissue contacting surface. The window is oriented in a plane oblique to a longitudinal axis of the mounting tube and forms a liquid-tight seal between tissue and the lens. The handle assembly is coupled to the jaw assembly to move the second jaw member between an open position in which the second jaw member is spaced part from the window and a closed position.

Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.

A medical device having a catheter and a fluid delivery conduit entirely disclosed within a portion of the catheter. The catheter may have a thermally transmissive region in fluid communication with the fluid delivery conduit and a rod disposed within at least a portion of the fluid delivery conduit. The medical device may control variable fluid flow with the ability to modify the effective cross-sectional area of the fluid delivery conduit available for fluid flow. Additional configurations provided herein may allow for the selective manipulation of a footprint or therapeutic pattern achievable with the medical device during a single procedure, negating the need for the removal and insertion of multiple devices to achieve the same variations in treatment geometry or characteristics.

A surgical tool can include a handle, an outer tube, an end effector, an inner tube, and a guide tube. The outer tube can be connected to the handle and can extend along a longitudinal axis. The end effector can be connected to the outer tube. The inner shaft can be located within the outer tube and can extend along the longitudinal axis. The inner shaft can be connected to the end effector and the outer shaft. The handle can be operable to translate the inner shaft with respect to the outer tube to operate the end effector. The guide tube can be located within the outer tube between the handle and the end effector. The guide tube can include a conduit extending therethrough.

An ablation catheter for performing a treatment under direct visualization of a region to be treated includes a catheter body and an energy emitter that is movable relative to the catheter body. The ablation catheter includes first and second imaging devices for providing direct visualization of the region to be treated, with the first imaging device being fixed relative to the catheter body. The first and second imaging devices can be in the form of first and second imaging chip endoscopes.

Tissue may be cut and extracted from an interior location in a patient's body using a probe or tool which both effects cutting and causes vaporization of a liquid or other fluid to propel the cut tissue through an extraction lumen of the cutting device. The cutting may be achieved using an electrosurgical electrode assembly, including a first electrode on a cutting member and a second electrode within a cutting probe or tool. Thus, over a first cutting portion, radio frequency current may help cut the tissue and over a second or over transition region, the RF current may initiate vaporization of the fluid or other liquid to propel the tissue from the cutting device.

A device for (RF) skin treatment comprising an active electrode having a first skin contact surface for electrical contact with a skin of a user and during use A return electrode having a second skin contact surface for electrical contact with the skin of the user during use. An RF generator to supply an RF treatment voltage between the active electrode and the return electrode to heat the skin below the active electrode. A coupling member arranged on the first skin contact surface comprising an electrically conductive material to improve the electrical coupling of the active electrode to the skin surface. The coupling member comprising a first layer of a first electrically conductive material arranged on the first skin contact surface, and a second layer of a second electrically conductive material, arranged on a side of the first layer remote from the first skin contact surface.

A jaw assembly that includes a first jaw and a second jaw. The first jaw includes a first outer jaw member having an effecting surface; a first inner jaw member having an effecting surface; and an element connecting the first outer jaw member and the first inner jaw member. The first inner jaw member is moveable relative to the first outer jaw member. The effecting surface of the first outer jaw member is proud of the effecting surface of the first inner jaw member in a direction of the second jaw.

An arthroscopic system includes a re-useable, sterilizable handle integrated with a single umbilical cable or conduit. The single umbilical cable or conduit carries electrical power from a power and/or control console to the handle for operating both a motor drive unit within the handle and delivering the RF power to a disposable RF probe or cutter which may be detachably connected to the handle. The RF power delivered to the handle and on to the probe or cutter is typically bi-polar, where the handle includes first and second electrical bi-polar contacts that couple to corresponding bi-polar electrical contacts on a hub of the disposable RF probe or cutter is connected to the handle.