A filtering device for use in a medical microwave delivery system is disclosed. The filtering device comprises a DC block and a microwave absorbing element. The microwave absorbing element is disposed around the DC block and/or around one or more elements within the DC block. Also disclosed is a medical microwave delivery system comprising a microwave generator system and the filtering device, wherein the filtering device is coupled to an output of the microwave generator system.

A surgical instrument includes a housing and a trigger assembly. The trigger assembly includes a trigger including a drive portion and a manipulation portion, a rocker, a linkage, and a slider. The trigger is pivotably coupled to the housing such that the drive and manipulation portions are moved in different directions in response to actuation of the trigger. The drive portion of the trigger is pivotably coupled to the rocker. The linkage is pivotably coupled to the rocker and the housing at opposing end portions thereof. The slider is pivotably coupled to the rocker and operably coupled to the deployable component. Actuation of the manipulation portion of the trigger moves the drive portion of the trigger distally to thereby urge the rocker distally, pivot the linkage about the second end portion thereof, and slide the slider distally to deploy the deployable component distally.

Method and devices for delivering pulsed RF ablation energy to enable the creation of lesions in tissue are disclosed. The delivery of RF energy is controlled such that the generator power setting remains sufficiently high to form adequate lesions while mitigating against overheating of tissue. An ablation catheter tip having high-thermal-sensitivity comprises a thermally-insulative ablation tip insert supporting at least one temperature sensor and encapsulated, or essentially encapsulated, by a conductive shell. A system for delivering pulsed RF energy to a catheter during catheter ablation comprises an RF generator and a pulse control box operatively connected to the generator and configured to control delivery of pulsatile RF energy to an ablation catheter comprising at least one temperature sensor mounted in its tip. Also disclose is a method of controlling the temperature of an ablation catheter tip while creating a desired lesion using pulsatile delivery of RF energy.

Ultrapolar non-telescopic electrosurgery pencil with argon beam capability which is capable of using monopolar energy in a bipolar mode for cutting and coagulation and which is also capable of using an ionized gas for cutting and coagulation. The ultrapolar non-telescopic electrosurgery pencil with argon beam capability includes a handpiece member, an electrosurgery blade assembly positioned within an end of the handpiece member where the electrosurgery blade assembly includes a blade having a non-conductive sharp cutting edge, a return electrode, and an active electrode, and a non-conductive hollow tube member positioned over a top of the blade and at least a portion of the return electrode, a first conductive hollow tube having at least a portion concentrically contained within the non-conductive hollow tube member of the electrosurgery blade assembly, a flexible non-conductive tube contained within at least a portion of ultrapolar non-telescopic electrosurgery pencil which provides a gas to the first conductive hollow tube, and a plurality of electrical conductors for connecting the return electrode, the active electrode, and the first conductive hollow tube to an RF electrosurgical generator for activating the ultrapolar non-telescopic electrosurgery pencil.

The disclosure provides a method of manufacturing a flexible circuit electrode assembly and an apparatus manufactured by said method. According to the method, an electrically conductive sheet is laminated to an electrically insulative sheet. An electrode is formed on the electrically conductive sheet. An electrically insulative layer is formed on a tissue contacting surface of the electrode. The individual electrodes are separated from the laminated electrically insulative sheet and the electrically conductive sheet. In another method, a flexible circuit is vacuum formed to create a desired profile. The vacuum formed flexible circuit is trimmed. The trimmed vacuum formed flexible circuit is attached to a jaw member of a clamp jaw assembly.

An energy delivery system comprises a transmission member and an antenna at a distal end of the transmission member. The antenna includes a first conductive arm, an insulator extending around the first conductive arm, and a second conductive arm. The second conductive arm includes a coil. The system also comprises a barrier layer surrounding the transmission member and antenna. The barrier layer extends from a proximal portion of the transmission member to a distal portion of the antenna. The system also comprises a jacket surrounding the barrier layer and forming a fluid channel for receipt of a cooling fluid.

An implant removal device having an elongate body having a proximal end and a distal end, the elongate body being resiliently flexible and configured to transmit torque from the proximal end to the distal end with a predetermined turning ratio, and a capture structure extending distally from the distal end and having a capture region, the capture structure being configured to selectively center a deployed implant in relation to a longitudinal axis of the elongate body and the capture region to aid with capture and subsequent removal.

The present invention relates to a conductive electrode which is used for an electrosurgical handpiece and, more particularly, to a conductive electrode for an electrosurgical handpiece, wherein the conductive electrode is split into two pieces, and thus not only a general surgery can be performed as in the conventional electrosurgical handpiece, but also a precise surgery can be performed by even an unskilled surgeon, and the fatigue of an operating surgeon can be reduced.

A combination medical device for removing and treating tissue in a patient is disclosed. The device includes a reusable handle and a blade selectively connectable to the handle. The blade includes an outer sleeve having a lumen with an inner shaft disposed therein. The inner shaft may be coupled to a motor drive unit disposed within the handle and may rotate so as to mechanically cut tissue as the inner shaft rotates. The outer sleeve includes at least one electrode for electrosurgically treating tissue. The reusable handle includes at least one control switch for controlling a parameter associated with the rotation of the inner shaft. The blade also may include a switch assembly in electrical communication with the at least one electrode, the switch assembly including attachment means for selective attachment of the switch assembly to the reusable handle.

Electrosurgical devices and systems having one or more porous electrodes are provided. An electrosurgical apparatus is provided having a shaft, a handle, and at least one porous electrode. The shaft is coupled to the handle and the at least one porous electrode is disposed on a distal tip of the shaft. The at least one porous electrode conducts energy provided to the distal tip and enables fluid provided to the distal tip to pass through the porous structure of the at least one electrode, such that the electrosurgical energy and the fluid are simultaneously applied to patient tissue adjacent to the at least one porous electrode. In one aspect, the electrosurgical apparatus includes a switching means configured to enable a user to select which of at least a first fluid, e.g. saline, or a second fluid, e.g., helium, to be provided to the distal tip.