Abstract: Methods of manipulating cancellous bone within a vertebral body. A steerable assembly is directed through an access cannula such that a deflectable portion of the steerable assembly protrudes from the access cannula to within the vertebral body. The steering instrument is actuated from an operating tension mode in which a tension is placed on the control element of the steering instrument to a slack tension mode in which the tension on the control element is released. The steerable instrument may exert substantially zero lateral force on the deformable conduit in the slack tension mode. The steering instrument is moved relative to the deformable conduit positioned within the vertebral body. The steering instrument is actuated to move the steering instrument from the slack tension mode to the operating tension mode in which the deflectable portion may assume a curved configuration not substantially coaxial with a longitudinal axis of the access cannula.

Abstract: A method for controlling gas composition in a surgical cavity during an endoscopic surgical procedure includes monitoring for a plurality of gas species in a gas flow from a surgical cavity of a patient. The method includes measuring the plurality of gas species in the gas flow from the surgical cavity and determining if the gas species measured in the gas flow from the surgical cavity are each present and/or within a respective desired range. The method includes adding gas into the surgical cavity if one or more gas species in the plurality of gas species is outside of the respective desired range so as to bring a composition of gas species in the surgical cavity within the respective desired range.

Abstract: Drug delivery articles, resident articles, and retrieval systems e.g., for gram-level dosing, are generally provided. In some embodiments, the articles are configured for transesophageal administration, transesophageal retrieval, and/or gastric retention to/in a subject. In certain embodiments, the article includes dimensions configured for transesophageal administration with a gastric resident system. In some cases, the article may be configured to control drug release e.g., with zero-order drug kinetics with no potential for burst release for weeks to months. In some embodiments, the articles described herein comprise biocompatible materials and/or are safe for gastric retention. In certain embodiments, the article includes dimensions configured for transesophageal retrieval. In some cases, the articles described herein may comprise relatively large doses of drug (e.g., greater than or equal to 1 gram).

Abstract: An orthopaedic surgical instrument includes a customized patient-specific 5-in-1 cutting block having a plurality of ribs and cutting guide slots extending between each rib. A bone-facing surface of each rib has a customized patient-specific negative contour configured to receive a portion of a corresponding positive contour of the patient's femur.

Abstract: A device, kit, and method for the treatment of anatomical joint dysfunctions, and more particularly, to a spring hinge comprising: a primary coil spring having a helical structure with a central cavity, wherein the primary coil spring forms a plurality of spirals layered against one another when the primary coil spring is in an unexpanded state; wherein the primary coil spring comprises surfaces that are configured to nest against each other to resist translational or shearing movement between adjoining spiral layers.

Abstract: An external distraction apparatus for performing a craniofacial distraction is disclosed. The external distraction apparatus may comprise a stationary member. The stationary member may be configured to be affixed to a head of a patient. The external distraction apparatus may also comprise laterally disposed distractors. The laterally disposed distractors may extend inferiorly from the stationary member and be moveable relative to the stationary member. The external distraction apparatus may comprise a motor and controller. The motor may be powered with the controller to perform a craniofacial distraction in an automated fashion.

Abstract: A screw element includes a screw axis, a shank for inserting in a bone, and a drive portion for engaging a screw driver. The drive portion includes a first wall defining a first recess and a second wall defining a second recess. Drive grooves are formed in the first wall and extend parallel to the screw axis. The second wall extends axially from a free end portion of the screw element to the first wall and has an inner diameter that continuously increases from the first wall towards the free end portion. A plurality of guide grooves are formed in the second wall at circumferential positions corresponding respectively to circumferential positions of the drive grooves. The guide grooves extend further radially from the screw axis than the drive grooves and guide the screw driver from the free end portion of the screw element to the drive grooves.

Abstract: Systems and methods for a guide assembly for introducing a bone anchor to an operative target site. The guide includes an outer sleeve and an inner sleeve. The outer sleeve has a distal anchor engaging end, a proximal end, and a central passage extending from the distal end to the proximal end. The inner sleeve may be situated in the central passage of the outer sleeve. The inner sleeve is movable being between a first position and a second position. The first position permits insertion of the bone anchor in the central passage. The second position releasably fixes the bone anchor to the guide assembly.

Abstract: The present invention generally is directed toward a spinal fixation system whereby a coupling element allows the physician to selectively lock or unlock either the connection between the coupling element and a fastener, such as to allow for repositioning of the coupling element, or the connection between the coupling element and an elongate rod. The locking or unlocking of these connections may be made independently and as desired by the physician.

Abstract: The present invention relates generally to medical devices and methods generally aimed at spinal surgery. In particular, the disclosed system and associated methods relate to performing spinal fixation with the use of a deformity system.

Abstract: Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a receiver member. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member that seats a spherical head of the bone anchor and a spinal fixation element, a compression member seated within the receiver member, proximally of the head of the bone anchor, and a closure mechanism seated within the receiver member, proximally of the compression member. One or more of the receiver member, the compression member, and the closure mechanism can have gripping features thereon configured to secure the bone anchor and/or the spinal fixation element within the receiver member, thereby reducing a risk of slippage of the bone anchor and/or the spinal fixation element with respect to the receiver member.

Abstract: A soft dynamic stabilization assembly includes a core, typically in the form of a tensioned cord, at least one pair of bone anchors, a spacer surrounding the core located between the bone anchors, typically, at least one elastic bumper and at least one fixing or blocking member. The core is slidable with respect to at least one of the bone anchors and cooperating spacer.

Abstract: A polyaxial bone screw assembly includes a threaded shank body having an upper capture structure, a head and a multi-piece retainer, articulation structure. The geometry of the retainer structure pieces corresponds and cooperates with the external geometry of the capture structure to frictionally envelope the retainer structure between the capture structure and an internal surface defining a cavity of the head. The head has a U-shaped cradle defining a channel for receiving a spinal fixation or stabilization longitudinal connecting member. The head channel communicates with the cavity and further with a restrictive opening that receives retainer pieces and the capture structure into the head but prevents passage of frictionally engaged retainer and capture structures out of the head. The retainer structure includes a substantially spherical surface that mates with the internal surface of the head, providing a ball joint, enabling the head to be disposed at an angle relative to the shank body.

Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part with an accommodation space defining an opening for inserting and accommodating a head of the bone anchoring element, and a pressure element having a cap portion configured to hold the head. In an inserting position, the cap portion of the pressure element is expandable in the accommodation space of the receiving part, and a first retaining element is configured to prevent the pressure element from moving towards a first end of the receiving part. In a pre-locking position, the head is held in the cap portion of the pressure element and is pivotable in the receiving part, while the cap portion is restricted from expanding to prevent removal of the head, and where a second retaining element is configured to prevent the pressure element from moving from the pre-locking position towards the inserting position.

Abstract: A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in an integral receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. A down-loadable compression insert has a lower friction fit collet and an outer receiver press fit surface. A down-loadable retaining ring has at least one inner edge and outer tiered surfaces. The ring cooperates with the shank to provide for pop- or snap-on assembly of the shank with the receiver either prior to or after implantation of the shank into a vertebra. The shank and receiver once assembled cannot be disassembled. A uni-planar assembly is included.

Abstract: A connection assembly configured to securely connect a spinal implant to a bone anchor. In particular, a variable angle connection assembly that is able to securely connect the spinal implant to the anchors even when there is a variance in the angle and position of the anchors with respect to the spinal implant. Furthermore, a connection assembly that will not inadvertently lock the components of the connection assembly preventing the relative movement of the components.

Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.

Abstract: In some embodiments, a method comprises forming a lumen in a first bone portion and forming a lumen in a second bone portion. The method further includes inserting a portion of a flexible fastening band through the lumen in the first bone portion and through the lumen in the second bone portion, and inserting the portion of the flexible fastening band into a fastener mechanism monolithically formed with the flexible fastening band. The method further includes advancing the portion of the flexible fastening band through the fastener mechanism until the first bone portion and the second bone portion are stabilized.

Abstract: Bone anchors and surgical instruments (e.g., bone taps, drivers, etc.) are disclosed herein that include integrated guide tips. Use of these anchors or instruments can eliminate one or more of the steps in a conventional bone anchor installation procedure, improving surgical efficiency and safety. For example, a surgical instrument can include a guide projection configured for insertion through a cannulation formed in a bone anchor when the surgical instrument is coupled to the bone anchor. The surgical instrument can also include various mechanisms for adjusting the position of the guide projection relative to the bone anchor. The guide projection can replace the needle, stylet, and guidewire used in typical insertion procedures. The bone anchor can also include integrated tapping features to eliminate the need for a separate bone tap instrument. Thus, in some embodiments, targeting, tapping, and driving the bone anchor can be performed in a single step.

Abstract: Embodiments described herein provide an implant for rigid intramedullary fixation of the hindfoot complex with the midfoot and/or forefoot and methods of implanting the same. Embodiments described herein can allow for the implant to be adapted to the patient based upon the extent of bone loss and instability. Embodiments herein also provide a jig system to facilitate the shaping of the foot and/or the implantation of the described internal fixation systems.

Abstract: A bone fixation system including a bone fixation element including a head portion having a bore passing therethrough from a first side surface to a second side surface, wherein the bore is perpendicular to a longitudinal axis of the bone fixation element, a securing element positioned within the bore, and a bone plate extending along a plate axis and having a threaded plate hole extending therethrough from a first surface to a second surface configured to contact a bone in an operative configuration.

Abstract: Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and/or non-locking holes. In addition, instruments such as distal and proximal aiming guides can accompany the bone plates to guide one or more screws into the bone plates.

Abstract: The invention is a super elastic bone plate and inserter. The bone plate has a plate section with openings for screws at fixed or variable angles, an optional compression slot, and a pronged section (i.e. the claw foot), which is generally transverse to the long axis of the plate for insertion, and after deployment returns to an angle of less than 90° to impart compression at a bone/bone interface, e.g. to cause fusion between bone segments. The inserter, which has a first leg with a frictional fit holding block for the plate and a second leg with a holding and activation mechanism for the super elastic pronged section. The invention also relates to a method of bone fusion using the plate system.

Abstract: A surgical implant system includes a surgical implant and at least one fixation device. The surgical implant includes a first side member, a second side member, a distal member and a proximal member. The first side member is disposed in opposed relation relative to the second side member, the first and second side members including distal and proximal ends. The distal member is disposed in opposed, spaced relation relative to the proximal member. The distal member extends across one end of the surgical implant between the first and second side member connecting distal ends of the first and second side members. The proximal member extends across a second end of the surgical implant connecting the proximal ends of the first and second side members. The fixation device is inserted in and advanced through osseous tissue and traverses the openings of the first and second side members.

Abstract: A rib implant securable to first and second rib portions of a rib. The rib implant can include a body, a first porous stem, and a second porous stem. The body can be configured to span a first rib portion of a rib and a second rib portion of the rib. The first porous stem can extend from the body and the first porous stem can be insertable into a first intramedullary canal of the first rib portion. The second porous stem can extend from the body opposite the first porous stem. The second porous stem can be insertable into a second intramedullary canal of the second rib portion to, together with the first porous stem, secure the first rib portion and the second rib portion.

Abstract: Devices, systems, and methods for bone stabilization, especially volar distal radius stabilization. The stabilization system may include a bone plate having an elongated portion, an enlarged head portion, and a transition region connecting the elongated portion to the enlarged head portion, and the plate including a plurality of through holes. A plurality of fasteners may be configured to extend through one or more of the plurality of through holes in the bone plate and into the bone. The plate may be used to stabilize a fracture in a long bone, such as a radius.

Abstract: The present bone screws—and kits and methods utilizing such bone screws—provide enhanced fatigue resistance (EFR), increased fixation strength, and/or improved tactile feedback. The enhanced fatigue resistance can increase the working life of a bone screw and reduce the possibility of a bone screw cracking or breaking and possible adverse implications thereof. The improved tactile feedback can improve usability by maintaining a level friction and resistance (during insertion of the screws into bone) that is familiar to health care providers. The present bone screws, kits, and methods may be configured and/or implemented for use in the repair of cancellous and/or cortical bone.

Abstract: A high-strength absorbable internal fixation bone screw for a fracture. The bone screw is made of a degradable oriented polylactic acid section. A raw material for the oriented polylactic acid section is a poly(L-lactic acid). The specific optical rotation of the poly(L-lactic acid) is ?155° to ?160°. The section is made of the poly(L-lactic acid) through the processes of making a billet, orientation strengthening and quenching in order. The method for making the billet is plastic injection molding. The method for orientation strengthening is forging and pressing or extrusion. The section is turned, finely milled, or directly molded into the bone screw. The bone screw has high strength and a low rate of mechanical strength loss, ensures mechanical support during bone healing and sufficient healing time for an injured bone, has good biocompatibility, and can be degraded and absorbed.

Abstract: Apparatus and methods for distracting and/or compressing bone. An exemplary apparatus may comprise a rod having a thread. The apparatus also may comprise a first assembly and a second assembly each coupled, or configured to be coupled, to the rod and each configured to be attached to a respective pin extending into bone. The apparatus further may comprise a nut engaged, or configured to be engaged, with the thread and configured to be turned to drive the second assembly along the rod. In some embodiments, at least one of the assemblies may have at least two degrees of rotational freedom that can be eliminated by manipulating a single graspable member. In some embodiments, the rod and the second assembly may have anti-rotation features configured to interact with one another to permit travel of the second assembly along the rod while preventing rotation of the second assembly about the rod.

Abstract: A needle-mounted balloon system can include a cannula and a stylet. The cannula may include a handle and an outer sheath, and the outer sheath may be configured to retract and expose at least a portion of an expandable member. The stylet may include a stylet needle and a sharp distal tip portion. The stylet needle may be used to insert the system into a body structure, after which the stylet may be disengaged from the cannula. The expandable member may then be exposed and inflated to create a space in the body structure. Filler material may be injected through the cannula to the open space in an effort to stabilize an injured or otherwise destabilized portion of the body structure.

Abstract: In order to deliver porous particulate material into a cavity via a thin tube without substantially crushing the porous particulate material, a two-step process and an apparatus for use therein are provided. The two-step process involves inserting a first rod into the thin tube to push the porous particulate material therein; removing the first rod from the tube; and (a) inserting a second rod into the thin tube, or (b) joining a second rod with the first rod, and inserting the joined first rod and second rod, to push the porous particulate material which remains in the thin tube. In (a), the first rod has a cross sectional area significantly smaller than that of the thin tube, and the second rod has a cross sectional area which is about equal to that of the thin tube. In (b), each of the first rod and the second rod has a cross sectional area about half of the thin tube.

Abstract: Disclosed are devices and methods used to customize the length of fasteners used during orthopedic surgeries, comprising creating a hole of the desired depth in a bone, measuring the depth of the hole using a depth measuring device, calculating, using the depth measuring device, the optimal length dimension of the fastener, transferring the calculated fastener optimal length dimension to a fastener cutting device, inserting a fastener having a length exceeding the optimal length dimension into the fastener cutting device, and cutting the fastener to the optimal length dimension using the fastener cutting device.

Abstract: Guiding devices and methods are disclosed that comprise a detachable guide pin. The guiding devices may be driven into a bone to place the detachable guide pin within the bone. Once placed in the bone, the guide pin can be used to guide a surgical device into the bone.

Abstract: Systems, methods, and devices allow intravascular or percutaneous mapping, orientation and/or ablation, in bodily cavities or lumens. A device includes elongate members, moveable between an unexpanded configuration and an expanded or fanned configuration. The elongate members form a stack in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducer elements carried by elongate members sense various physiological characteristics of or proximate tissue, and/or may apply energy to or proximate tissue. The elongate members are rotatable in groups or as a group in the expanded configuration. The device is retractable.

Abstract: A device for treatment of acne includes: a case having a contact surface portion to contact a skin of an acne region, the contact surface portion being provided with at least one through hole; at least one needle inserted into the skin of the acne region through the through hole with the contact surface portion arranged in contact with the skin; a driving unit arranged inside the case; a needle fixing part arranged inside the case so as to fix the at least one needle and configured to be linearly moved by the driving unit; and a needle cooling unit configured to cooling the at least one needle to transfer coldness into the skin of the acne region through the at least one needle to suppress a function of a sebaceous gland in the skin of the acne region such that proliferation of propionibacterium acnes is limited.

Abstract: A cryoablation catheter comprises a catheter shaft, a guidewire lumen disposed within the catheter shaft, a cryoballoon having a first end connected to the catheter shaft and an opposite second end connected to the guidewire lumen, the cryoballoon configured to transition between a deflated state and an inflated state, the cryoballoon having a maximum circumference in the inflated state, a proximal electrode array having a plurality of proximal electrodes arranged around the cryoballoon and located proximally of the maximum circumference of the cryoballoon, and a distal electrode array having a plurality of distal electrodes arranged around the cryoballoon and located distally of the maximum circumference of the cryoballoon. The cryoablation catheter has no electrodes located at the maximum circumference of the cryoballoon.

Abstract: A cryoablation method, system, and device that allows for real-time and accurate assessment and monitoring of PV occlusion and lesion formation without the need for expensive imaging systems and without patient exposure to radiation. The system includes a cryoballoon catheter with a cryoballoon, a distal electrode, a proximal electrode, and a temperature sensor. Impedance measurements recorded by the electrodes may be used to predict ice formation, quality of pulmonary vein occlusion, and lesion formation.

Abstract: A differential pressure limiter (226) for limiting a differential fluid pressure of cryogenic fluid (228) during a cryoablation procedure includes one or more of a fluid source (216), a pressure regulator (230), one or more proportional valves (232) and a backpressure regulator (234). The fluid source (216) selectively retains cryogenic fluid (228). The pressure regulator (230) receives cryogenic fluid (228) from the fluid source (216) and regulates a fluid pressure of the cryogenic fluid (228). The proportional valve(s) (232) receives cryogenic fluid (228) from the pressure regulator (230) and at least partially controls a flow rate of the cryogenic fluid (228).

Abstract: Enhanced thermal pusher assembly ensures: proper delivery of coils profiled for various applications without grounding by thermal attachment and with a handheld controller, in under one second. Attachment controller configures interface with Al, —interface and data transmission and management system.

Abstract: A treatment instrument includes a heat conductor which includes a treatment surface and an installation surface, a heat generator which generates heat, a substrate which includes a substrate front surface on which the heat generator is formed and a substrate side surface facing one side in a width direction, the substrate being attached to the installation surface, an adhesive layer which is provided between the installation surface of the heat conductor and the substrate, the adhesive layer being formed of a material having a thermal conductivity and being in close contact with the installation surface, and an insulating portion which is formed of a material having electrical insulation, the insulating portion being in close contact with the heat generator, the substrate front surface, and the substrate side surface.

Abstract: Limiting joint temperature. At least some of the example embodiments are systems including an electrosurgical probe and a high frequency power supply. The electrosurgical probe may include: a shaft with a distal end, a proximal end, and lumen defined within the shaft; an active electrode disposed near the distal end; a return electrode disposed on the shaft; and a temperature sensor disposed on the shaft spaced away from the active electrode and the return electrode, the temperature sensor is electrically insulated from the electrically conductive fluid. The high frequency power supply may be coupled to the active electrode, and configured to provide an electrical energy output between the active electrode and the return electrode.

Abstract: A forceps includes first and second shafts configured to support an end effector assembly at a distal end thereof. The end effector includes first and second opposing jaw members each having an electrically conductive plate associated therewith configured to communicate electrosurgical energy between electrically conductive plates upon selective activation thereof. The first and second jaw members pivotable relative to one another about a pivot such that the jaw members are selectively movable between an open position wherein the jaw members are spaced relative to one another and a closed position for grasping tissue therebetween. A fluid line is integrated with one of the shafts and is configured to selectively deliver fluid from a fluid source to the end effector assembly proximate the electrically conductive plates during electrical activation.

Abstract: A surgical instrument having a jaw lock includes first jaw and second jaws that are moveable from an open position to a closed position. At least one of the jaws includes a jaw slot having a jaw closing portion and a jaw locking portion. A pin positioned within the jaw slot is advanced by a blade. The blade includes a cutting edge and a notch defining a first edge configured to advance the pin to move the jaws to, and secure the jaws in, the closed position.

Abstract: The surgical instrument (10) according to the invention comprises a jaw tool (16) with two branches (20a, 20b) that can be closed for grasping tissue. In order to transmit the closing force to at least one branch (20a, 20b), the branch (20a, 20b) is coupled with a preferably manually actuatable pull/push element (50), and, for coupling, an actuating pin (46) that supports a sleeve (70) interacts via the sleeve with a coupling track (65a, 65b; 66a, 66b), in which case the sleeve rolls off the coupling track (65a, 65b; 66a, 66b). In this manner, any deformation, abrasion or burr formation on the coupling track (65a, 65b; 66a, 66b) is prevented to such an extent that, even after numerous closing movements of the branches (20a, 20b), said branches can still be actuated unimpaired by any wear of the coupling track (65a, 65b; 66a, 66b) and the actuating pin (46), respectively.

Abstract: Tissue ablation devices, and more specifically needle injectors that are configured to deliver flowable thermal treatment media into an interface with tissue and that can provide a single dose of ablative energy.

Abstract: A puncture device includes a puncture needle that punctures a puncture site of the living body and supplies thermal energy, a sensor needle having a puncture site temperature sensor that measures the temperature of the puncture site, a holder that holds the puncture needle and the sensor needle, a cartridge that receives the puncture needle, the sensor needle, and the holder, a main body to which the cartridge is attachable, a contacting unit provided with through holes penetrating the front and back surfaces thereof and provided on the surface side thereof with a contacting surface with the surface of the puncture site, and a drive unit that moves the holder such that the puncture needle and the sensor needle are projected and retracted from the contacting surface via the through holes.

Abstract: A body orifice remodeling device includes a cylindrical handpiece having a defined length which is adapted to be inserted into the body orifice and an elongated monopolar electrode mounted outside on the circumference of the cylindrical handpiece and extending substantially along the length of the handpiece. A source of radio frequency (RF) energy in the handpiece is configured to generate RF energy to the elongated monopolar electrode; and a source of electromagnetic stimulation energy (EMagS) in the handpiece is configured to generate (EMagS) energy.

Abstract: A method includes measuring a first impedance-magnitude between a distal-electrode fitted at a distal end of a medical instrument in an organ of a patient and a surface-electrode attached externally to the patient, at a first electrical frequency. A second impedance-magnitude between the distal-electrode and the surface-electrode, is measured at a second electrical frequency. A difference between the first and second measured impedance-magnitudes is calculated. Based on the calculated difference, an indication of, whether the distal-electrode is in physical contact with tissue or immersed in blood is decided, and outputted.

Abstract: A balloon catheter includes a shaft, a balloon made of an expandable membrane, a flexible substrate, one or more electrodes, and one or more radiopaque flags. The shaft is configured for insertion into a heart of a patient. The balloon is fitted at a distal end of the shaft. The flexible substrate is disposed on the membrane. The one or more electrodes are disposed over the flexible substrate and have a fishbone configuration. The one or more radiopaque flags are coupled to the expandable membrane, wherein the one or more radiopaque flags include a serpentine pattern so that the radiopaque flags fold in conformance with flexible substrate as the expandable membrane is collapsed into a compressed or folded configuration.

Abstract: Disclosed herein are wirelessly powered tissue ablation devices comprising an alternating magnetic field generator; an ablation probe comprising an ablation tip; a catheter comprising an opening at a tissue insertion end and a lumen extending along a length of the catheter to the catheter opening; and a magnetic field receiving coil configured to be electrically coupled to the ablation probe; wherein at least a portion of the ablation probe is positionable within the lumen of the catheter, and wherein the ablation tip protrudes through the opening of the catheter. Also disclosed are methods of using wirelessly powered tissue ablation devices.