Systems and methods for cutting tissue using a transcatheter approach are disclosed. In some examples, the systems and methods are implemented as part of a delivery system that includes an implant with a support structure and a cutting element coupled to the support structure, such that the cutting element configured to cut tissue.

An image analysis device is capable of outputting evaluation information for use in the balloon catheter treatment for subjects, in real time during a procedure using a balloon catheter. The image analysis device includes: an input unit configured to input captured image data of a two-dimensional captured image of a balloon catheter inserted into an organ of the subject and pressed against an inner surface of the organ; a processing unit configured to obtain evaluation image data of the two-dimensional evaluation image, by executing an image processing on the captured image based on the captured image data input by the input unit, and configured to obtain evaluation information regarding a state of the balloon catheter pressed against the inner surface of the organ based on the evaluation image data; and an output unit configured to output the evaluation information acquired by the processing unit.

The present invention is an ablation device having an arcuate configuration for the ablation of tissue. The device includes a probe having a nonconductive elongated shaft including at least one lumen therethrough and a nonconductive distal portion extending from the shaft. The nonconductive distal portion includes a plurality distal ports and a plurality of proximal ports in communication with the at least one lumen of the shaft. The device further includes an electrode array including a plurality of independent conductive wires extending through the lumen and positioned along an external surface of the nonconductive distal portion, each of the plurality of wires passes through at least an associated one of the proximal ports and through at least a corresponding one of the distal ports.

A method and apparatus are disclosed for an optimized transseptal procedure for providing left heart access, that reduces the number of devices that are used in order to minimize procedural time, complexity and cost. The apparatus comprises a reshapeable hybrid dilator that comprises the combined functionality of a transseptal sheath and dilator assembly. The hybrid dilator comprises: a dilator shaft defining a lumen for receiving a crossing device therethrough, the dilator shaft comprising a stiffening member and a deflectable portion, being structured to provide support for the crossing device when the crossing device is used to create a puncture in a tissue; and a distal tip having an outer diameter which tapers down to an outer diameter of the crossing device for providing a smooth transition between the crossing device and the distal tip when the crossing device is inserted through the lumen and protrudes beyond the distal tip.

A tissue specimen removal device comprises a specimen bag; a flexible ring, the flexible ring configured to form a top opening of the specimen bag; a cannula assembly comprising: an inner tube portion and an outer tube portion. The device may further comprise a connector carrier, the connector carrier configured to retain at least one connector housing, the at least one connector housing comprising one or more connector portions and reside within an interior of the connector carrier, and wherein the connector carrier can be moved from a position within the cannula assembly to outside the cannula assembly.

An electrode assembly for use with an electrosurgical instrument includes a base portion, a return lead adapted to be electrically coupled to a return terminal of an electrosurgical generator, an electrical insulator supported on a distal portion of the return lead, a tensioning mechanism, and an active lead adapted to be electrically coupled to an active terminal of the electrosurgical generator. The tensioning mechanism includes a slider slidably disposed in the base portion, a rotation rod threadably coupled to the slider, and a spring proximally biasing the slider. The active lead having a first end portion securely fixed to the base portion and a second end portion slidably coupled to the rotation rod of the tensioning mechanism. A portion of the active lead extends around the electrical insulator. Rotation of the rotation rod causes axial displacement of the second end portion of the active lead to tension the active lead about the electrical insulator.

A colpotomy device includes a shaft assembly having a hollow outer shaft and an inner shaft disposed within, and rotatable and translatable relative to, the outer shaft, a handle assembly operably coupled to a proximal end of the shaft assembly, and configured to selectively rotate the inner shaft relative to the outer shaft, a colpotomy cup assembly including an outer cup and an inner cup disposed within the outer cup, wherein the inner cup is fixedly coupled to a distal end of the inner shaft, and the outer cup is fixedly coupled to a distal end of the outer shaft, and a cutting element coupled to the inner cup, such that the inner shaft the shaft assembly, inner cup, and cutting element rotate together relative to the outer shaft.

A bipolar sphincterotome may include an elongate tubular member, a cutting wire, and a return path. The return path may include a conductive ink portion disposed on an outer surface at a distal portion of the tubular member. The return path may also include a return wire disposed within the tubular member that is electrically coupled to the conductive ink portion. In some example embodiments, the return wire may be disposed within a lumen configured to have two or more functions, one of which being to house the return wire. Additionally, in some example embodiments, the conductive ink portion may be circumferentially disposed on the outer surface to provide visual access to a wire guide lumen. Also, for some example embodiments, the bipolar sphincterotome may include two electrically isolated return paths.

An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen.

An end effector assembly for a surgical instrument includes first and second jaw members each including a jaw housing, an electrically-conductive tissue-treatment plate, and a longitudinally-extending channel. The first and/or second jaw member is movable relative to the other between a spaced-apart position and an approximated position. A cutting mechanism is disposed at least partially within the second jaw member. The cutting mechanism may include an inflatable bladder, a fluid line coupled to the inflatable bladder, and a knife coupled to the inflatable bladder. The cutting mechanism may alternatively include a fluid line, a knife, and a sealing member that defines a variable-volume sealed chamber within the longitudinally-extending channel of the second jaw member. The cutting mechanism may alternatively include at least one electromagnet, at least one electrical wire coupled to the at least one electromagnet, and a knife operably coupled to the at least one electromagnet.