Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the tissue separating device includes a handle, an elongate sheath and a circular cutting blade that may extend from the distal end of the sheath upon actuating the handle. The elongate sheath, particularly its distal end, includes a non-uniform wall thickness having one or more thicker portions in the outer sheath, particularly the outer cam member, and/or one or more thicker portions in an inner member disposed radially inward of the blade.

Abstract: An ultrasound catheter has an elongate flexible catheter body having a lumen extending longitudinally therethrough, and an ultrasound transmission member extending longitudinally through the lumen of the catheter body. The ultrasound transmission member has a proximal end that is coupled to a separate ultrasound generating device, and a distal tip that is attached to the distal end of the ultrasound transmission member and which is located at the distal end of the catheter body. The ultrasound transmission member is directly attached to the catheter body and/or to a guidewire tube either directly or via an attachment device. The catheter has an additional radiopaque marker positioned on the distal end the catheter.

Abstract: An electrocautery device for use in a surgical operation to coagulate tissue and/or organs in a patient. The cautery device includes a sheath defining a longitudinal axis, a handle coupled to a proximal end of the sheath, a cauterizing tip coupled to the distal end of the sheath, and at least one actuator configured to move the cauterizing tip relative to the sheath. The movement of the cauterizing tip is configured to mitigate the risk of tissue or organ adherence to the cauterizing tip during a cauterizing operation.

Abstract: A device suitable for use in a body lumen and comprises an elongated control member having a distal and a proximal end, and a radially expansible member disposed at or near the distal end and adapted for collection and/or shearing of matter (i.e. thrombus) from a wall of the body lumen (i.e. a vein or an artery). The radially expansible member has a proximal end and a distal end and is adjustable between a contracted orientation and an expanded orientation. The elongated control member comprising a proximal arm connected at or adjacent to the proximal end of the radially expansible member and a distal arm connected at or adjacent to the distal end of the radially expansible member such that movement of one arm relative to the other arm effects adjustment of the diameter or radial strength of the radially expansible member. The device comprises a control mechanism operatively connected to both arms and adapted to provide resistance to the movement of one arm relative to the other.

Abstract: An electrosurgical device having a tubular outer shaft and an inner shaft is disclosed. The tubular outer shaft includes an axis and a distal end region. The distal end region includes a distal-most tip and a cutting edge defining a window in the outer shaft proximal along the axis to the distal-most tip. The inner shaft inner shaft coaxially maintained within the outer shaft such that the inner shaft is movable about the axis with respect to the outer shaft and wherein a portion of the inner shaft is exposed in the window of the outer shaft. A first electrode is disposed on the outer shaft in a region proximal along the axis to the window, and a second electrode is electrically isolated from the first electrode and disposed on the inner shaft. The second electrode is exposed in the window of the outer shaft.

Abstract: A robotic surgical system is provided that includes an electromechanical tool coupled to a surgical instrument such as an end effector of the tool is adapted to apply ultrasound and/or radiofrequency (RF) energy to tissue when the end effector is in contact with the tissue. The end effector is configured to measure force exerted by the tissue on the end effector, which corresponds to tension at the tissue engaged by the end effector. A controller operatively coupled to the tool and the arm is configured to adjust a power applied to the tissue based on the measured force on the end effector. The controller can also adjust a type of energy such that one or both ultrasound and RF energy is selected to be applied to the tissue, based on measured force exerted by the tissue on the end effector.

Abstract: Disclosed embodiments include apparatuses, systems, and methods for cutting an opening in a tissue wall. In an illustrative embodiment, an apparatus includes an inner cutting member having a first cylindrical body supporting at least one first cutting surface at a distal end. The first cutting surface faces a first rotational direction relative to an axis of the first cylindrical body and has a first cutting edge at an outer periphery of the first cylindrical body. The apparatus also includes an outer cutting member having a second cylindrical body concentrically disposed around the first cylindrical body and supporting at least one second cutting surface at the distal end. The second cutting surface faces a second rotational direction relative to the axis and has a second cutting edge at an inner periphery of the second cylindrical body.

Abstract: A system and method for providing additional power to a hand-held surgical device from a supplemental DC power supply. The hand-held surgical device includes a generator and an internal power supply. The internal power supply is a battery or a capacitor either which can withstand a high-temperature and/or a low-temperature sterilization procedure while within the hand-held surgical device. The supplemental DC power supply can provide alone or in combination with the internal power supply sufficient power to the generator to perform an electrosurgical procedure. The supplemental DC power supply is connected through a detachable cord to the hand-held surgical device. The DC power supply may be outside a sterile surgical environment.

Abstract: A drive handle and system for delivering an implant are disclosed. The drive handle includes a manual control unit, an electrical control unit and a transmission mechanism. The manual control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive a delivery catheter for delivering the implant. The electrical control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive the delivery catheter. The drive handle is switchable between a manual drive/control mode and an electrical drive/control mode to drive the delivery catheter to deliver the implant. The operation is simple, and the operating physician can take full advantage of the two modes to perform the surgical procedure based on his/her own operational preferences. This can result in higher surgical accuracy. Further, by providing these two modes, the apparatus has an increased the security and a reduced surgical risk.

Abstract: A coagulation suction device having an insulation cover and first and second bipolar wires. The insulation cover has a distal end and a distal opening formed at the distal end, and a hollow cavity configured to receive a hollow suction tube. The first and second bipolar wires are encapsulated within the insulation cover and extend along the insulation cover to the distal end. The first and second bipolar wires extend distally beyond a distal-most surface of the insulation cover, and each have an exposed distal end. The exposed distal ends are bent toward each other and terminate adjacent to and spaced apart from each other.

Abstract: A disposable housing includes a housing portion and a memory. The housing portion defines a cavity therein configured to receive a motor operable, inner core handle assembly. At least a portion of the housing portion has a color that corresponds to a color of one type of end effector or adapter assembly. The memory has stored therein at least one operating parameter for the inner core handle assembly.

Abstract: Disclosed herein are steerable catheter assemblies and methods of steering catheters that utilize gimbal plate and ring mechanisms to accomplish independent control of catheter flex magnitude and catheter flex direction. Some embodiments include a catheter with two or more pull wires that flex the catheter, a housing connected to the catheter, a gimbal ring pivotally connected to the housing, a gimbal plate pivotally connected to the gimbal ring to form a gimbal assembly, and an adjustment member coupled to the gimbal assembly, such that the adjustment member is movable axially and rotationally relative to the gimbal assembly. The two or more pull wires are connected to the gimbal plate, the adjustment member engages the gimbal plate such that movement of the adjustment member adjusts the position of the gimbal assembly to thereby flex the catheter with the pull wires.

Abstract: Systems and methods are disclosed for assessing tissue contact, e.g., for mapping, tissue ablation, or other procedures. An exemplary tissue contact sensing system comprises a flexible tip device. At least one piezoelectric sensor is housed within the flexible tip device. The at least one piezoelectric sensor is responsive to contact stress of the flexible tip device by generating electrical signals corresponding to the amount of contact stress. An output device is electrically connected to the at least one piezoelectric sensor. The output device receives the electrical signals for assessing tissue contact by the flexible tip device. Methods for assembling and using the flexible tip device are also disclosed.

Abstract: A magnet assisted surgical device, system, and method employs magnetic sections, catheters, and guidewires to modify tubular stentgrafts in-situ. One example application provides a more reliable way for surgeons to modify stentgrafts insitu to allow blood flow to continue to branching blood vessels that would otherwise be blocked by the stentgraft itself. One such method includes placing a tip section of the device in the desired location, deploying a stentgraft, placing a magnetic device inside the stentgraft, connecting the magnetic device to the tip section, and excising the portion of the stentgraft held between the magnet and the tip section.

Abstract: Methods for treating a patient using intravascular devices, systems, and methods are disclosed herein. One aspect of the present technology is directed to an intravascular device having an elongated member coupled to and extending between a handle and an angled distal portion. The distal portion is moveable between a first configuration having a first shape configured for intravascular delivery and a second configuration having a second shape, different than the first shape, that is configured for intravascular delivery.

Abstract: A venous valve incising cutter includes a cutting teeth head, a guide, a wire and a coupling rod that couples the guide and a cutting teeth head, all aligned in a rotation axis thereof. More than four pieces of cutting blades are formed on the outer surrounding surface of the cutting teeth head. Each cutting blade has a roughly triangular pyramid shape such that the three ridge lines are composed of the outer surrounding surface of the cutting teeth head and the two planes formed in the reverse side of the outer surrounding surface and the apex is a knife-point of the cutting blade.

Abstract: The present invention is a dermal-exfoliation system that uses positive pressure to deliver salt and/or bio-inert crystalline particle abrasives or saline solution to the stratum corneum, combined with a minimal amount of negative pressure to close the loop when in contact with the skin to evacuate spent particles and dislodged skin cells and debris. An applicator handpiece is optimized for the use of the combined pressure system discussed herein for the removal of epidermal layers.

Abstract: A catheter for thromboembolic disease with mechanic waves, injection, and ejection having a triple-lumen catheter system, whereby a first lumen is for injection, a second lumen is for ejection, and a third lumen has a mechanical wave emitter for wave emissions. The first lumen, the second lumen, and the third lumen are longitudinal, whereby the first lumen and the second lumen are symmetrical and opposite each other, and the third lumen is positioned approximately at a center of the triple lumen catheter system.

Abstract: A probe for ablating tissue of a body cavity includes a shaft, an inflatable balloon connected to the shaft, and an electrode structure on or surrounding the balloon. The balloon expands within the body cavity to place the electrode structure in contact with the tissues in the body cavity. Additional electrodes, which are housed within the balloon during insertion into the cavity, can be extended outwardly from the balloon to penetrate the tissues in the body cavity. The electrode structure and the additional electrodes are adapted to transmit electrical energy to tissue of the body cavity in order to ablate the tissues up to a predetermined depth.

Abstract: A catheter assembly with segmented or step-wise deployment stabilization system includes a base or handle, puncture needle extending from the handle, and a deployment mechanism or mechanisms to selectively extend from the distal end of the needle for first length a hollow stabilizing component and as a second step to a second further length a stabilizing guide wire element. The needle will gain sub-dermal access to the patient to the intended position for deployment of a catheter. Hollow stabilizing component provides for a first additional guide and support for a catheter sheath from the distal end of the needle. The stabilizing wire element provides additional length, guide and support for the catheter sheath. The hollow stabilizing component has some degree of flexibility as does the guide wire to minimize chance of damage to surrounding tissue.

Abstract: A method for performing an inferior lift in a sinus includes preparing an initial opening in a bone including a marrow section and a hard sinus floor, the initial opening being drilled through the marrow section to a depth just prior to reaching the hard floor of the sinus. A portion of the hard sinus floor is removed using a sonic drilling device. Subsequently any remaining doughnut shaped hard floor of the sinus is removed using a second tip on the sonic drilling device that has an active portion that is substantially limited to 360 degrees about the circumference of the forward direction of the tip but without any forward cutting surface, the second tip configured to remove bone only in the lateral direction of the second tip without substantial cutting contact with the marrow section of the bone clearing a widened opening in the hard sinus floor of the bone.

Abstract: A lead assembly includes a lead with a distal end and a proximal end. The lead includes a plurality of electrodes disposed at the distal end and a plurality of terminals disposed at the proximal end. The lead also defines at least one central lumen and a plurality of outer lumens. The central and outer lumens extend from the proximal end to the distal end such that the plurality of outer lumens extend laterally from the at least one central lumen. The lead further includes a plurality of conductive wires. Each conductive wire couples at least one of the plurality of electrodes electrically to at least one of the plurality of terminals. At least two conductive wires are disposed in each of the plurality of outer lumens.

Abstract: A clot retrieval device, for example to be used in a thrombectomy, is provided including a catheter, an elongated member, and a knitted basket with a proximal end coupled to the catheter and a distal end coupled to the elongated member. The elongated member is movable between an expanded position and a compressed position relative to the catheter and is configured so that the knitted basket expands radially and compresses as the elongated member is moved to the compressed position. The knitted basket is comprised of a plurality of wires coupled together by a plurality of windings. Each winding comprises one of the plurality of the wires twisted about another of the plurality of wires.

Abstract: Extension attachments selectively couple to any of a variety of hand held instruments. The extension attachments may include smoke evacuation shafts and electrosurgical electrodes. The extension attachments may extend the functional capabilities of the hand held instruments, such as electrosurgical and smoke capture capabilities.

Abstract: An example thrombectomy device is disclosed. The example thrombectomy catheter includes a catheter tube including a proximal portion, a distal portion and a lumen extending therein. The thrombectomy catheter also includes a high pressure tube extending through the catheter lumen from the catheter proximal portion toward the catheter distal portion, the high pressure tube having at least one jet orifice for directing at least one fluid jet through the catheter lumen. The thrombectomy catheter also includes an outflow orifice, an inflow orifice and a fluid pulse generator coupled to the proximal portion of the catheter tube, wherein the fluid pulse generator is configured to inject fluid though the thrombectomy catheter at a first frequency.

Abstract: A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

Abstract: An atherectomy catheter directs particles generated by a cutting element into a collection chamber. A lumen configured to direct fluid into the tissue collection chamber.

Abstract: An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.

Abstract: Ocular surgery may be performed by a variety of systems, processes, and techniques. In certain implementations, systems and processes for ocular surgery may include the ability to emulsify a lens in an eye using a modular hand-held system including a phacoemulsification unit detachably coupled to a pump unit and remove lens portions from the eye using suction provided by the pump unit. The system and the process may also include the ability to decouple the phacoemulsification unit from the pump unit, couple an irrigation-aspiration unit to the pump unit to form a second hand-held system, and remove material from the eye using suction provided by the pump unit.

Abstract: Systems, apparatuses, and methods of and for an ophthalmic surgical system are disclosed. An ophthalmic surgical system may include a vitreous probe having a housing sized and shaped for grasping by a user. The vitreous probe may also include a cutter extending from the housing and being sized to penetrate and treat a patient eye. The cutter may include an outer cutting tube coupled to the housing. The outer cutting tube may have an outer port formed at a distal end wall of the outer cutting tube and configured to receive tissue. The cutter may include a rotatable inner cutting member disposed within the outer cutting tube. The inner cutting member may include a first cutting surface that rotates across the outer port to cut the tissue when the inner cutting member is rotated.

Abstract: A medical elongated body is disclosed, which is able to make a nick in a stenosed site and is capable of preferably widening the stenosed site in which the nick is made. A balloon catheter is disclosed, which includes a shaft, a dilation member that is fixed to the shaft on a distal side, and an elastic member that is disposed on an inner surface of the dilation member. The dilation member includes a projection portion, which is a part of the dilation member protruding in a radial direction due to the elastic member disposed at a position where the inner surfaces of the dilation member face each other. A material of the elastic member is configured to be a material, which is further stretched than a material of the dilation member in a circumferential direction when the dilation member dilates.

Abstract: An electrosurgical device having a handpiece including a controller and an electrode assembly extending from the handpiece is disclosed. The electrode assembly includes a monopolar blade and a monopolar electrode. The monopolar blade includes a conductive element partially coated with an insulator and electrically coupled to the controller to selectively deliver a monopolar radiofrequency (RF) cutting signal. The monopolar electrode is spaced apart and electrically isolated from the monopolar blade. The monopolar electrode includes an exposed major conductive surface electrically coupled to the controller to selectively deliver a monopolar RF hemostatic sealing signal with a dispersed fluid.

Abstract: A surgical apparatus includes a debriding device, a hollow tube, and an irrigation assembly. The debriding device is fitted at a distal end of the surgical apparatus and is configured to debride tissue from a debriding site in a patient body. The hollow tube is configured to evacuate the debrided tissue away from the debriding site. The irrigation assembly is configured to apply irrigation fluid, via one or more orifices formed in the hollow tube, to the debrided tissue being evacuated.

Abstract: Disclosed is a system to engage one or more tools. In the system a drive shaft and collet may be assembled to engage and disengage, selectively, a plurality of tools. Further, a tracking device may be used to track a location of at least a portion of the tool.

Abstract: A microneedle unit including a microneedle including a substrate having a first surface and a second surface opposite to the first surface, the microneedle further including a projection protruding from the first surface of the substrate, an adhesive sheet including a sticking region attached to the second surface, the adhesive sheet further including an adhesive region protruding outside the substrate from the sticking region in a direction parallel to the second surface, and a protective sheet covering a portion of the adhesive region outside of the substrate in the direction parallel to the second surface.

Abstract: A surgical tool that includes a drive housing, an elongate shaft that extends from the drive housing, and a plurality of drive cables extending within the elongate shaft between the drive housing and an end effector coupled to a distal end of the elongate shaft. A cable brake assembly is at least partially arranged within a cavity defined in the drive housing or the elongate shaft, the cable brake assembly having one or more brakes and a brake pad engageable with one or more of the plurality of drive cables. The cable brake assembly is actuatable between a first position, where the plurality of drive cables are free to move longitudinally within the elongate shaft, and a second position, where the one or more brakes and the brake pad engage and prevent the one or more of the plurality of drive cables from moving.

Abstract: A fracture in a hollow bone is supported temporarily by a rigid plastics implant formed within a balloon within the bone. To assist implant removal, an access port, comprising a hollow cylinder, is inserted through an aperture made in an end of the bone and surrounds a proximal end of the implant. The access port is connected to a source of torsional-mode ultrasonic vibrations to soften the plastic implant and improve engagement between access port and implant. Removal of the ultrasound source allows introduction of a cutting tool through the access port, which guides it to hollow out the implant. The implant then collapses within the balloon and is withdrawn through the access port. One suitable cutting tool has a head with four helical fins separated by part-circular grooves and a concave distal face. Ultrasonically activated, the fin tips soften and cut the plastic, which flows away along the grooves.

Abstract: A surgical apparatus includes a rotatable shaft and a turbine assembly. The rotatable shaft includes a cutter located thereon. The cutter is configured to cut an object when the shaft is rotating about a rotational axis. The turbine assembly includes a turbine and a turbine housing. The turbine housing is configured to receive a fluid that enters the housing parallel to the rotational axis, and to steer the fluid to impinge on the turbine in a direction that is not parallel to the rotational axis. The turbine is configured to rotate the shaft so as to cut the object by the cutter.

Abstract: An improved catheter atherector for shaving, cutting, and emulsifying accumulated plaque into fine particles, and removing the particles from blood vessel walls without cutting or permanently stretching the walls, and without substantially blocking the blood flow through the vessel during plaque removal operation. The catheter atherector includes an emulsification reduction sphere and extraction wire that rotate and move axially inside the vessel to engage the occlusive material. Emulsified occlusive reduced plaque material and blood only flow in a proximal direction into a catheter lumen. The operation of the device does not substantially disrupt blood pressure within the blood vessel.

Abstract: The present disclosure provides description of applicators to implement modular magnetic anastomosis device. In one embodiment the delivery device is a laparoscopic instrument for MISS surgery, in another embodiment the delivery device is endoscopy or colonoscopy instrument for NOTES surgery.

Abstract: A cannula for a surgical system may include a magnet located in a position to be sensed by the surgical system in a mounted position of the cannula to the surgical system. At least one of a presence of the magnet and a polarity of the magnet is sensed in the mounted position of the cannula to provide identification information relating to the cannula. Exemplary embodiments further encompass a patient side cart for a teleoperated surgical system, the patient side cart including a base, a main column, and an arm connected to the main column. The arm may include a mount to receive a cannula and a reader to sense a magnet of an identification device in the cannula so as to receive identification information relating to a mounted cannula.

Abstract: This disclosure disclosed an ultrasonic needle and apparatus used for removal of the vitreous body and other tissues. An ultrasonic vitrectomy needle, comprising: a connector, a connected inner needle, and an outer sheath. The length of the outer sheath at the distal end is slightly longer than that of the inner needle; the sheath distal end is of blind with smooth surface, but there is an open cut at the side of the distal end used for aspirating the vitreous body.

Abstract: A phacoemulsification needle has a polygonally-shaped tip with an axis that is offset from the axis of the needle body. The material forming the tip is non-uniformly distributed, adding to the motion of the tip when it is vibrated torsionally. In one embodiment, the tip has tip wall segments of varying thicknesses. In another embodiment, the tip has a series of external ribs formed on the tip wall segments, on the wall segment, at the apex where adjacent wall segments meet, or both.

Abstract: A blade assembly comprising: a tip including two or more tubes, wherein the two or more tubes include at least: an outer tube and an inner tube; and a mechanical enclosure including: a locking spline having a longitudinal axis; and a slide lock; wherein the slide lock slides along the longitudinal axis of the locking spline and over the locking spline forming a locked state so that rotational movement of the locking spline, around the longitudinal axis of the locking spline, is prevented; and wherein the outer tube is coupled to the locking spline so that rotational movement of the outer tube, around the longitudinal axis of the locking spline, is prevented during the locked state.

Abstract: The present technology provide compositions that are drug delivery systems for the sustained release of anti-stenotic drugs for the treatment and prevention of occlusion of blood vessels, particularly after perivascular surgery. The compositions include a hydrogel, unimolecular micelles dispersed within the hydrogel, and an effective amount of anti-stenotic drug dispersed within the unimolecular micelle. The hydrogel may be a di-or tri-block copolymer comprising one block of poly(ethylene glycol) (PEG) and one or two blocks of poly(lactic-co-glycolic acid) (PLGA). The unimolecular micelle may include three domains: a dendritic polymer core, hydrophobic block polymers (e.g., PVL, PVCL, and/or PCL) attached to the core and PEG attached to the hydrophobic block polymers.

Abstract: A medical instrument (1) designed in particular as an endoscope (2) has a main body (3) and, formed on the main body (3), an electrical and/or electronic switching device (4) with at least one button (5) for actuating the switching device (4) and the medical instrument (1). The switching device (4) is provided on its outside (6) with a cover (7), which is integrally bonded to the main body (3) of the medical instrument (1) in order to produce a tight connection. Provision is further made that the cover (7) has at least one outwardly directed bulge (8), on which the at least one button (5) of the switching device (4) is formed.

Abstract: Tissue can be removed from a patient with a catheter or other medical device having a cutting member. A source of suction can be coupled to the device for suctioning removed tissue through a lumen in the device and out of the patient's body.

Abstract: A method of aspirating a vascular occlusion from a remote site is provided. The method includes the steps of advancing a first elongate tubular body through a vascular access site and into a body vessel, advancing a second tubular body distally to extend beyond the first elongate tubular body to reach the remote site, and aspirating thrombus from the site into the lumen by applying pulsatile vacuum to the first elongate tubular body. The second tubular body has a lumen and a length that is shorter than the first elongate tubular body. The pulsatile application of vacuum may cause the distal tip of the second tubular body to open and close like a jaw, which facilitates reshaping the thrombus or biting or nibbling the thrombus material into strands or pieces to facilitate proximal withdrawal under negative pressure through the lumen of the second tubular body.

Abstract: Devices, systems and methods for cutting and sealing of tissue such as bone and soft tissue. Devices, systems and methods include delivery of energy including bipolar radiofrequency energy for sealing tissue which may be concurrent with delivery of fluid to a targeted tissue site. Devices include debridement devices which may include a fluid source. Devices include inner and outer shafts coaxially maintained and having cutters for debridement of tissue. An inner shaft may include electrodes apart from the cutter to minimize trauma to tissue during sealing or hemostasis. Devices may include a single, thin liner or sheath for electrically isolating the inner and outer shafts.

Abstract: A first tubular body having a first longitudinal axis extending centrally through the tubular body includes at least one delivery port extending through a wall of the first tubular body. A second tubular body having a second longitudinal axis extends through the second tubular body, the first and second longitudinal axes being displaced from each other such that an asymmetrical longitudinally extending gap is formed between an outer surface of the second tubular body and an interior surface of the first tubular body. A temperature sensor forming a thermocouple extending longitudinally within the gap between the first tubular body and the second tubular body. An inner core is positioned within the second tubular body. The inner core includes least one ultrasound element.