An electrosurgical assembly that includes one or more electrodes, and one or more AC conductors electrically connecting the one or more electrodes to a power source that is configured to generate and output an AC power signal to the one or more electrodes via the one or more AC conductors. A rectifier is electrically connected to the one or more AC conductors, and configured to convert the AC power signal into a DC power signal. A light source is electrically powered by the DC power signal.

A surgical system according to one or more embodiments may include: manipulators respectively supporting an endoscope and first and second surgical instruments; a remote control apparatus including a display device, a first operation handle for right hand to operate the first surgical instrument, and a second operation handle for left hand to operate the second surgical instrument; and a control apparatus. The control apparatus may display, on the display device, a graphical user interface, overlapped with the image captured by the endoscope, the graphical user interface including a first area that displays information on the first surgical instrument to be operated by the first operation handle, a second area that displays information on the second surgical instrument to be operated by the second operation handle, and a third area that displays information on the endoscope, which are arranged side by side in order from right to left.

The invention provides an electrosurgical instrument for delivering radiofrequency and microwave energy to biological tissue in order to cut and coagulate the tissue. The electrosurgical instrument comprises a coaxial transmission line for conveying radiofrequency (RF) energy and microwave energy, and an energy delivery tip coupled to a distal end of the coaxial transmission line. The energy delivery tip comprises: a first electrode electrically coupled to an inner conductor of the coaxial transmission line and protruding beyond a distal end of an outer conductor of the coaxial transmission line; a second electrode electrically coupled to the outer conductor of the coaxial transmission line and extending coaxially along a portion of the first electrode; and a dielectric body disposed between the first electrode and second electrode. The first electrode comprises a projecting nib that protrudes beyond a distal end of the dielectric body. The second electrode and the dielectric body comprise portions that are exposed at the distal end of the energy delivery tip. The first electrode and second electrode are configured as (i) a bipolar structure for delivering the RF energy conveyed by the coaxial transmission line, and (ii) an antenna for radiating the microwave energy conveyed by the coaxial transmission line.

The present application disclosed a combined hysteroscope instrument operation propeller, which includes a propelling body that can be attached to the hysteroscope body, the instrument can smoothly pass through the blind areas such as the vagina and cervical canal along the hysteroscope body that has already entered with the help of the sheath on the propelling body, and can be operated continuously and flexibly after being sent into the uterus. The present application is beneficial for doctors to quickly, accurately and non-invasively send the treatment instrument into the uterus, which not only reduces the treatment cost, but also achieves a good treatment effect.

A handpiece for a surgical instrument, having a lumen for the provision of suction or fluids to the surgical instrument, the lumen being formed from at least two concentrically arranged tubes, one of the tubes being formed from metal, and the other of the tubes being formed from an electrically insulating material, the arrangement being such as to prevent electrical charge carried by any fluid within the lumen from leaking to an external surface of the lumen. In one example the at least two concentrically arranged tubes define a tube connector having a distal end and a proximal end, wherein the proximal end is located within a receiving formation in the handpiece and the distal end protrudes outwardly from the handpiece.

The present disclosure is a catheter assembly and related method that allows laceration of either a surgical valve or transcatheter valve leaflet to facilitate flow to the coronary arteries during valve in valve interventions.

Apparatuses and methods are disclosed for the perforation of a communication between the aorta and left atrium. The method includes introducing the apparatus, positioning the apparatus at a location along the aorta, and energizing the apparatus to create a perforation. For example, one method may include: introducing a flexible wire into the left atrium, advancing a dilator along the flexible wire to position the flexible wire adjacent a selected location along the aorta and energizing the flexible wire to create a perforation from the left atrium into the aorta.

An expansion body that radially expands and contracts; an elongated shaft portion having a distal portion including a proximal end fixing portion to which a proximal end of the expansion body is fixed; a plurality of electrode portions provided along the expansion body are included, and the expansion body includes a recess portion recessed radially inward when the expansion body expands and defining a reception space that receives a biological tissue. The recess portion includes a bottom portion positioned at a radial innermost side, a proximal side upright portion extending radially outward from a proximal end of the bottom portion, and a distal side upright portion extending radially outward from a distal end of the bottom portion. One of two electrode portions that are circumferentially adjacent to each other is arranged at the proximal side upright portion, and the other is arranged at the distal side upright portion.

A surgical system comprises an articulated mechanical arm comprising arm segments connected serially by arm joints that flex and rotate, and first and second input-devices. The second input-device comprises a handle configurable to be oriented in any orientation in an x-y-z space, and the handle comprises segment members and joint members corresponding to the arm segments and arm joints of the arm. The arm joints can be actuatable by, and have the same degrees of freedom as, the handle joint member. A method of using the surgical system includes retroflecting the arm, transitioning control of the arm from the first input device to the second input device, and performing a surgical action, during which a displacement vector or a reorientation arc of the handle member through the x-y-z space is translated to a corresponding displacement vector or corresponding reorientation arc of the end effector in the same x-y-z space.

Methods, apparatuses, and systems are described for stent delivery and positioning for transluminal application. The method may include positioning the stent in an undeployed configuration through an access site in a wall of a first body lumen. In some cases, the method may include retracting an outer sheath proximally and past an anchoring component disposed at a distal portion of an inner tubular member based on positioning the stent. A distal portion of the stent may be disposed between the anchoring component and the outer sheath while the stent is in the undeployed configuration. The method may further include deploying the distal portion of the stent from the outer sheath and within the first body lumen and expanding a proximal portion of the stent from within the outer sheath such that upon fully exiting the outer sheath, the proximal portion expands to a deployed configuration within a second body lumen.