Abstract: A surgical staple insertion system for compressing bone fragments includes a staple and an insertion tool. The staple has first and second legs and an elastically deformable bridge monolithically formed with the first and second legs. In a relaxed configuration, the free ends of the first and second legs are positioned closer to one another than are portions of the first and second legs connected to the bridge. The insertion tool retains the bridge in an elastically deformed configuration with the legs positioned relatively farther apart from one another during at least portion of the step of implantation of the staple. Then, the insertion tool is released from the staple so that the bone fragments between the legs are subject to compression.

Abstract: End effector position set point adjustment includes an instrument and a control unit. The instrument includes an end effector and a drive mechanism for actuating the end effector. The control unit is configured to actuate the end effector using the drive mechanism, determine an actual position of the end effector, identify an expected position associated with the determined actual position of the end effector, determine a position offset based on the expected position and the determined actual position of the end effector, adjust a position set point based on the position offset, and actuate the end effector to the adjusted position set point using the drive mechanism.

Abstract: Surgical stapling apparatuses have a surgical buttress attached thereto. The surgical buttress includes an elongate rectangular body having a proximal portion, a distal portion, and opposing lateral sides running along the elongate rectangular body from the proximal portion to the distal portion. Magnesium is on a surface and/or in pores of the surgical buttress.

Abstract: A tissue treating device includes a capsule and first and second clip arms each having a proximal end received within the capsule for movement between an open configuration and a closed configuration. A tissue retention feature extends radially inward from each arm to grip tissue in the tissue clipping configuration and release the tissue in the open configuration. The retention features are coupled to the arms via curved portions. The second clip arm includes a second tissue retention feature extending radially inward from the first portion of the second clip arm toward the longitudinal axis.

Abstract: A medical device forming method, an applier for manipulating clips, and a cartridge for holding clips are disclosed herein.

Abstract: An operating structure of a surgical clip applier is provided to drive a clip clamping unit. The operating structure of the surgical clip applier comprises: a body; a front driving element for driving the clip clamping unit; a restoring spring for driving the front driving element to move backward; a press-control element pivotally connected to the body; a front driving arm pivotally connected to the press-control element; and a lower driving arm with two ends pivotally connected to the body and the front driving arm, respectively, to drive the front driving element to move forward.

Abstract: A system for treating tissue includes a capsule including a channel extending therethrough; first and second clip arms each extending from a proximal end to a distal end, the proximal ends being received within the channel of a capsule to be moved between an open tissue receiving configuration; and a closed tissue clipping configuration. The first clip arm includes a first tissue retention feature at a distal portion thereof configured to pierce through a target tissue when in the tissue clipping configuration and subsequently release the target tissue when the clip arms are moved to an at least partially open configuration. The second clip arm includes a second tissue retention feature at a distal portion thereof configured to pierce and retain the target tissue thereon when in both the closed tissue clipping configuration and the open tissue receiving configuration.

Abstract: An occlusion device suitable for endovasculature treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

Abstract: Method of endovascular intervention in neurovascular anatomy of a patient including deploying an anchor of a tethering device in an anchoring vessel of a neurovascular anatomy, the anchor coupled to a tether extending proximally from the anchor. Method includes advancing a guide-sheath over the tether of the tethering device anchored in the anchoring vessel and attached to the tether, the guide-sheath includes at least one lumen and a distal opening from the lumen. Method includes advancing a treatment device through the lumen of the guide-sheath and out the distal opening from the at least one lumen and through an entrance of a target intracranial vessel, and deploying the treatment device at a treatment site within the target intracranial vessel without a combined therapy of two or more anti-platelet therapeutic agents during a peri-procedural period. Related systems, devices, and methods are disclosed.

Abstract: An occlusion device with particular utility in occlusion of left atrial appendages is described. The occlusion device utilizes an inflatable balloon comprising a proximal portion to inflate with an inflation fluid delivered by an outer catheter body and conform to a shape of the left atrial appendage and a distal portion to fill with an adhesive delivered by an inner catheter body. The distal portion of the inflatable balloon sticks to the tissue wall of the left atrial appendage. The outer catheter body is configured to position the inner catheter body inside the outer catheter body.

Abstract: Described herein are compositions comprising, a polymer; a non-physiological solution; and a visualization agent; wherein the polymer is soluble in the non-physiological solution and insoluble at physiological conditions. Methods of preparing the compositions are disclosed as well as methods of using these compositions to treat vascular conditions.

Abstract: An all-in-one osteotomy fixation device, along with various related components, systems, and methods. The various embodiments include a device body, a bone attachment structure, a removable slot body, and a movable cutting guide moveably attached to the body via a guide coupling structure. The various methods include using any single device embodiment herein to perform all of the steps of the osteotomy procedure.

Abstract: An orthopaedic surgical instrument includes a customized patient-specific surgical instrument having a body. A cutting guide slot extends through the body. A pair of first arms extends posteriorly from the body. Each arm includes a first customized patient-specific negative contour configured to receive a portion of a first corresponding positive contour of one of a patient's femoral condyles. A second arm extends proximally from the body. The second arm has a second customized patient-specific negative contour configured to receive a portion of a second corresponding positive contour of an anterior surface of the patient's femur. A method of performing a surgical procedure is also disclosed.

Abstract: Manually driven intraosseous devices and associated methods are disclosed. The intraosseous device includes a housing and a transmission at least partially disposed within the housing. The transmission includes a first portion and a second portion. The second portion includes a manual actuator that is at least partially disposed outside of the housing. The intraosseous device also includes a penetrator assembly releasably connected to the first portion of the transmission. The transmission is configured to transmit a force, which is applied manually to the manual actuator, to the penetrator assembly to rotate the penetrator assembly relative to the housing and to drive the penetrator assembly through a bone into an intraosseous space. The manual actuator is a hand crank that is configured to be manually cranked by an operator to transfer rotational force to the first portion of the transmission.

Abstract: Embodiments of the invention include a system for coupling a graft to a bone. A graft preparation tool may be used to place one or more holes in a graft and an offset measurement tool may be used to determine the distance of the one or more holes from an edge of the graft to be aligned with a portion of the bone. One or more complementary holes may then be created in the bone and fasteners applied through the holes to couple the graft to the bone.

Abstract: A patient-specific tool for performing a knee osteotomy procedure on a patient's tibia bone, the patient's tibia bone having a wedge opening defining a top interior surface and a bottom interior surface, the tool comprising: a body including a wedge element sized and shaped to fit in the wedge opening, the wedge element having at least one bone contacting surface having contours complementary in shape to surface contours of the top and bottom interior surfaces of the patient's tibia bone.

Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.

Abstract: Surgical devices include adapter assemblies which electrically and mechanically interconnect handles of electromechanical surgical devices to surgical loading units. Electrical components of the surgical devices are coated with a multi-layer conformal coating which permits the devices to be sterilized in an autoclave without damaging the electrical components.

Abstract: A method of performing a procedure on a meniscus, via an ultrasonic surgical tool. The ultrasonic tool includes a probe capable of transmitting ultrasonic vibration from a proximal end toward a front end. The probe includes a bent portion that is inclined with respect to a longitudinal axis of the probe, and a procedure portion that is disposed at the front end of the probe and has a plurality of cutting surfaces. The method includes: inserting the probe in a body; moving the probe through a space in between the femur and the tibia to position the procedure portion adjacent to the horizontal rupture in the meniscus; positioning a cutting surface of the procedure portion on a posterior portion of the meniscus; and resecting the horizontal rupture along an inclination of the meniscus to form an inclined resection plane.

Abstract: Systems, devices and methods for treating a stenosed vessel or heart valve are disclosed. In some embodiments, a cutting/scoring assembly/device for treating a stenosed vessel/heart valve is provided and includes a main, elongated scoring sleeve or element with multiple longitude wires arranged at a distal end. A distal end of the elongated element is proximal to the multiple longitude wires which, when used in conjunction with a balloon catheter, is used to for, according to some embodiments, localized controlled longitudinal vessel incision.

Abstract: A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material.

Abstract: A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.

Abstract: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body and a tissue-removing element mounted on a distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen. An inner liner is received within the elongate body. The inner liner defines a guidewire lumen. The inner liner isolates an interior of the guidewire lumen from the elongate body and tissue-removing element such that rotational forces are not transferred from the elongate body and tissue-removing element to the interior of the guidewire lumen when the elongate body and tissue-removing element are rotated during removal of tissue from the body lumen.

Abstract: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body and a tissue-removing element mounted on a distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen. An inner liner is received within the elongate body. The inner liner defines a guidewire lumen. The inner liner isolates an interior of the guidewire lumen from the elongate body and tissue-removing element such that rotational forces are not transferred from the elongate body and tissue-removing element to the interior of the guidewire lumen when the elongate body and tissue-removing element are rotated during removal of tissue from the body lumen.

Abstract: The invention relates to a syringe with a visual indicator and retaining elements, which is used in the application of epidural anaesthesia. The syringe has the particularity of comprising a visual indicator located at the front end of a plunger that drives the fluid contained in the barrel, which visual indicator is an element in the form of a bellows comprising two discs with a membrane between the two discs, wherein the membrane can be deformed according to the pressure in the syringe. The syringe also comprises longitudinal lateral flanges on the body of the plunger, which have a surface with a plurality of teeth, wherein the plunger is rotatable relative to its axial axis, and wherein the teeth allow the plunger to be secured.

Abstract: An apparatus and method to enable clinicians to verify needle or catheter location within an anatomic site by relying upon combined sensing of two signals, such as a pressure signal and a heart rate pulse signal, in which the detection of a correlation between both signals is identified to confirm location of the needle or catheter.

Abstract: An intra-cardiac introducer device includes a sheath having an inner wall and an outer wall spaced apart from the inner wall to define a sheath space, the sheath defining a distal end and a proximal end and arranged to penetrate cardiac tissue. A hub is connected to the proximal end of the sheath, an intracardiac stabilization balloon is coupled to the distal end of the sheath, and an external stabilization disc is slidingly positioned along the sheath. The cardiac tissue is sandwiched between the intracardiac stabilization balloon and the external stabilization disc to secure the position of the sheath in the cardiac tissue.

Abstract: A robotic surgical system may include a cannula attachment device or cannula mount having a locking mechanism configured to pivot between an unlocked position and a locked over-center position. The locking mechanism may actuate a clamp or other feature that is configured to move between a closed position and an open position. The clamp may include a locating structure with one or more tapered surfaces that is configured to mate with a corresponding structure disposed on a portion of a cannula when the cannula is positioned in the cannula attachment device. The locating structure may guide the cannula into the attachment device, as well as assist with orientating the cannula relative to the attachment device.

Abstract: A retention mechanism for a surgical access assembly is provided. The retention mechanism includes a planar base having first and second extensions each with a free end, a first locking member disposed on the free end of the first extension, and a second locking member disposed on the free end of the second extension. The first locking member includes a U-shaped body having a first set of opposed, inwardly facing teeth. The second locking member includes a U-shaped body having a first set of opposed, outwardly facing teeth configured engage the first set of opposed, inwardly facing teeth when the retention mechanism is in a locked condition. The first set of opposed, inwardly facing teeth and the first set of opposed, outwardly facing teeth are configured to be spaced apart from each other when the retention mechanism is in an unlocked condition.

Abstract: An automated hair restoration assembly includes a control unit and a cylinder that is gripped during a hair restoration surgical procedure. An actuator is positioned within the cylinder and a turret unit is rotatably coupled to the cylinder. A plurality of cartridges is provided and a selected one of the cartridges is loadable into the turret unit. Each of the cartridges contains a respective one of a plurality of incising blades, a plurality of hair grafts or an alternating sequence of a plurality of said incising blades. The actuator passes through the respective tube and engages one of the incising blades or one of the hair grafts. Thus, each the incising blades can make a respective incision and each of the hair grafts is inserted into the respective incision.

Abstract: The present disclosure provides devices and methods for insufflating abdomens of subjects under direct visualization. Such devices and methods, in some implementations, include features for cleaning the devices, and certain implementations of the methods permit procedures wherein it is not necessary to use a typical obturator to place a cannula, resulting in safer procedures.

Abstract: An elongated medical assembly has a distal-assembly tip. The distal-assembly tip is, at least in part, selectively maneuverable along an assembly-tip movement path terminating proximate to a first biological feature of a biological structure of a patient. An elongated puncture device has a distal puncture tip. The distal puncture tip is, at least in part, selectively deployable along a puncture-tip movement path extending from the elongated medical assembly and into, at least in part, the first biological feature, and also extending from the first biological feature toward a second biological feature of the patient.

Abstract: A skin-treatment system comprises a plurality of fluid reservoirs, a selection valve operatively connected to each of the plurality of fluid reservoirs, a first pump operatively connected to the selection valve, and a handpiece comprising a treatment tip configured to apply treatment fluid from one or more of the plurality of fluid reservoirs via the selection valve and the first pump to a skin surface. The treatment tip may comprise a vacuum inlet configured to aspirate waste fluid away from the skin surface. A momentary switch may be located on the handpiece. The momentary switch may have an “on” setting under which electrical current is allowed to flow to the first pump, and an “off” setting under which electrical current is prevented from flowing to the first pump. The first pump may be activated only when the momentary switch is in its “on” setting.

Abstract: An strut assembly extends along a strut axis and comprises a strut body, an actuator, and a locking assembly. The strut body includes a rod and a sleeve. The rod is translatable relative to the sleeve along the strut axis. The actuator is linearly engaged with the sleeve such that linear movement of the actuator causes linear movement of the sleeve. The locking assembly includes a lock member configured to transition between a locked position in which the lock member engages both the sleeve and the actuator such that rotation between the sleeve and the actuator is substantially prevented, and an unlocked position in which the lock member is spaced apart from the sleeve such that the actuator is substantially free to rotate about the sleeve.

Abstract: The present disclosure relates to a gradually expanding limb reconstruction system (100) comprising at least one fixator mechanism (100a) and at least one distractor mechanism (100b) wherein distractor mechanism is a self-driven growing rod system (500) comprising at least one cylindrical static rod (502) with an internal bore; at least one piston rod (506), coaxially coupled with said static rod (502) and configured to distract longitudinally out of the static rod (502); at least one fluid receptacle component (508) in the internal bore of the static rod (502); at least one fluid source (510) configured to hold at least one sterile biocompatible fluid at a pre-determined pressure; at least one pressure and flow control unit (512) configured to release metered doses of the sterile biocompatible fluid from the fluid source (510) to the fluid receptacle component (508) via at least one fluid transfer port (514).

Abstract: A burr hole cover is provided that is constructed to be positioned within a recessed region formed on a patient's skull in order to conceal a burr hole. The burr hole cover may be affixed to the patient's skull in the recessed region. For instance, surgical fastening devices may be inserted through apertures defined in the burr hole cover. The burr hole cover may have a thickness and curvature that enables it to be substantially flush with the surface of the skull when affixed in the recessed region. The burr hole cover's curvature follows the contour of the patient's skull. The burr hole cover may include one or more perforations sized to allow air (or moisture) to flow towards the burr hole, which promotes skin/bone growth. Some of the perforations may be large enough to permit access to the brain with leads and/or drainage devices.

Abstract: A rod group includes a plurality of first rods that has an arcuate first curve, the first rods having mutually different lengths; and a plurality of second rods that has an S-shaped second curve, the second rods having mutually different lengths. The first rods and the second rods have shapes for treatment of scoliosis by (i) guiding the postoperative apex of the thoracic kyphosis to be located at the thoracic vertebrae T6 to T8, and (ii) guiding a postoperative apex of the thoracic kyphosis to be located at a position different from a preoperative apex of the thoracic kyphosis and the second rod each have a shape extending along an anatomically normal spinal column arrangement.

Abstract: The present disclosure relates to a dynamic-seal-less self-actuating growing rod system (100) comprising at least one cylindrical static rod (2), at least one piston rod (6), coaxially coupled with said static rod (2) and configured to distract longitudinally out of the static rod (2); at least one fluid source (8) holding at least one sterile biocompatible fluid at a pre-determined pressure; at least one fluid transfer port (10) configured to transfer said sterile biocompatible fluid in said fluid source (8) to at least one fluid receptacle (12) at the same pre-determined pressure, wherein said at least one fluid receptacle (12) is in contact with said second piston end (6b) of said piston rod (6) at a first receptacle end (12a) and is connected to said fluid transfer port (10) at a second receptacle end (12b).

Abstract: A bone anchoring device for anchoring a rod to a bone or vertebra includes a receiving part having two legs defining a channel for the rod, and a rod receiving member positionable in the channel, the rod receiving member including an upper surface and a lower surface defining a longitudinally extending passage for receiving the rod and respectively configured to restrict upward and downward movement of a rod received in the passage. The rod receiving member is adjustable from a first configuration where the passage is unobstructed and the rod is movable longitudinally through the passage, to a second configuration where an engagement surface attached to other portions of the rod receiving member is advanced axially into the passage to engage the rod while a rotational orientation of the engagement surface remains constant to restrict movement of the rod in the passage.

Abstract: According to an aspect, a spacing element for spacing a fixation plate away from a bone to which the fixation plate is secured is provided. The spacing element has a body with a bone interface side and a plate interface side and sidewalls extending thereinbetween, said bone interface side having a bone contacting surface having contours conforming to surface contours of the bone. A corresponding fixation plate, fixation plate kit, and method for designing a patient-specific spacing element are also provided.

Abstract: A tool for spreading and contracting a bone along a cut formed therein as part of a knee osteotomy procedure is provided. The spreading tool includes an upper arm and a lower arm respectively extending along a length between an effort end and a load end, the arms being pivotally connected to one another via a hinge positioned between the effort and load ends; and an anchor interface proximate the load ends for anchoring the load ends of the arms relative to respective first and second fixed positions on the bone. The tool being operable, via rotation of the arms about the hinge, between a closed configuration in which the load ends of the upper and lower arms are proximate one another and an open configuration in which the load ends of the upper and lower arms are spaced apart from one another.

Abstract: The present invention concerns to a method, a percutaneous access path providing device and a kit of instruments for the treatment of fractured vertebrae, in particular for treating spinal compression fractures in humans. In particular the invention concerns to a percutaneous access path providing device comprising a vertebra access cannula and a vertebra introducer stylet, wherein the vertebra introducer stylet has a tip.

Abstract: An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that spreading of the first and third receiving portions in a first direction bends the surgical rod in a first orientation and spreading of the first and third receiving portions in a second direction bends the surgical rod in a second orientation opposite to the first orientation.

Abstract: A motor-driven orthopedic impacting tool is provided for orthopedic impacting in the hips, knees, shoulders and the like. The tool is capable of holding a broach, chisel, or other end effector, which when gently tapped in a cavity with controlled percussive impacts, can expand the size or volume of an opening of the cavity or facilitate removal of the broach, implant, or other surgical implement from the opening. A stored-energy drive mechanism stores potential energy and then releases it to launch a launched mass or striker to communicate a striking force to an adapter in either a forward or reverse direction. The tool may further include a combination anvil and adapter and an energy adjustment mechanism to adjust the striking force the launched mass delivers to the adapter in accordance with a patient profile.

Abstract: A method and system of providing therapy to a patient's uterus is provided, which can include any number of features. The method can include the steps of inserting a uterine device into the uterus and performing a uterine integrity test to determine that the uterus is intact and not perforated. If it is determined that the uterus is not perforated, a patency test can be performed to determine that the uterine device is not clogged or embedded in tissue. If the uterus is intact and the device is not clogged or embedded in tissue, the uterus can be treated with the uterine device, e.g., uterine ablation. Systems for performing these methods are also disclosed.

Abstract: A vaginal device is described. A conformable vaginal insert is shaped for insertion into a vaginal cavity of a female human. A contact point is configured to change a shape of the insert. A sensor is configured to measure and to relay characteristics of the vaginal cavity and the surrounding and supportive structures of the vaginal cavity. A processor is configured to control the contact point to adjust the shape of the insert, generate a treatment for the vaginal cavity and the surrounding structures of the vaginal cavity and the supportive structures of the vaginal cavity comprising a vaginal cavity profile generated from the measured characteristics, store the measured characteristics and the vaginal cavity profile, and based on the stored measured characteristics and the stored vaginal cavity profile, automatically modify the shape of the insert by control of the contact point to provide the treatment to the vaginal cavity.

Abstract: A technique allows for an electrical connection between a single heating segment treatment catheter and an energy delivery console. The catheter and the console are connected using a tip-sleeve, tip-ring-sleeve, tip-ring-ring-sleeve, tip-ring-ring-ring-sleeve or other suitably configured push to connect or blind connect configuration. The catheter may have multiple segments that are individually selectable or a single segment, also connected to suitable push to connect connection device which is recognized and differentiated by the energy console as well as different energy delivery profiles. The catheter may deliver a heat based treatment to a perforator vein of a patient.

Abstract: Example methods and apparatuses are disclosed for providing tissue ablation through electrolysis, electroporation, or a combination thereof. A pulse that has an element of decay may be applied to a target for tissue ablation while the decay is modulated. In some examples, apparatus including a controller and switches may be used to modulate the decay and/or selectively apply the pulse to the target. The apparatus may further include resistors and/or other elements to modulate a magnitude of the pulse and/or a slope of a decay of the pulse.

Abstract: An apparatus includes a shaft and an inflatable balloon coupled to a distal end of the shaft. The balloon includes a proximal portion that is electrically-conducting over at least half of a proximal-portion circumference of the proximal portion, a distal portion that is electrically-conducting over at least half of a distal-portion circumference of the distal portion, and an electrically-insulating middle portion that insulates the proximal portion from the distal portion. Other embodiments are also described.

Abstract: An electrode assembly for an electrosurgical pencil includes an insulative core configured to support an active wire around a peripheral surface thereof and a ground electrode coupled about the insulative core and adapted for insertion within an electrosurgical pencil. A hypotube is disposed between the ground electrode and the active pin and encapsulates the active pin to insulate the active pin from the ground electrode. An active pin is included that is adapted for insertion within the pencil and has a tensioning assembly including: a set screw with threads that engage grooves of the active pin such that, upon rotation, the set screw advances to secure the active wire within the active pin; and a nut is fixed within the hypotube that includes grooves that engage threads of the active pin such that, upon rotation, the active pin translates proximally to tension the active wire about the insulative core.