Abstract: A bidirectional reversible medical skin tension reducing closer is provided. The closer comprises a left substrate and a right substrate, both of which are configured to be horizontally and symmetrically arranged, a left pawl and a right pawl fixedly arranged on adjacent ends of the left and right substrates respectively, and a left rack and a right rack, one end of each of which is fixedly connected to the left and right pawls respectively in an up-down side-by-side arrangement. Ratchets on the left and right pawls tilt towards the left and right substrates respectively, and the other ends of the left and right racks pass through the space beneath the right and left pawls respectively and are engaged with ratchets provided on the bottom of the right and left pawls respectively. Adhesive layers for fixing the left and right substrates onto the surface of the skin are arranged on the bottom surfaces of the left and right substrates.

Abstract: A method for resetting a stapling apparatus includes providing an apparatus with a cam member in a fired position. A circuit of the apparatus is then changed from a first polarity state to a second polarity state. A motor of the apparatus is then activated to rotate the cam member from a fired position back to a home position while the circuit is in the second polarity state.

Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.

Abstract: A clip unit including: a clip main body having a first arm portion, a second arm portion, and a middle portion; a pressing tube formed in a tube shape to be capable of accommodating the clip main body, the pressing tube being provided to deform the clip main body so as to make a distal end of the first arm portion and a distal end of the second arm portion to approach to each other, as the middle portion, the first arm portion, and the second arm portion are moved toward a proximal end side of the clip unit; a locking portion configured to protrude from an inner circumferential surface of the pressing tube on the proximal end side of the pressing tube; and a first locked portion configured to protrude from a lateral surface of the first arm portion.

Abstract: The present disclosure relates to the field of endovascular treatment. More particularly, the present invention uses a modified hydrogel intrasaccular occlusion device designed to implement an endovascular treatment to ameliorating or eliminating aneurysm recurrence, which hydrogel may optionally be impregnated with pharmaceutical compounds. The present invention also teaches the use of thin hydrogel coatings to ameliorate endovascular treatment related difficulties.

Abstract: The present disclosure relates to the field of endovascular treatment. More particularly, the present invention uses a modified hydrogel intrasaccular occlusion device designed to implement an endovascular treatment to ameliorating or eliminating aneurysm recurrence, which hydrogel may optionally be impregnated with pharmaceutical compounds. The present invention also teaches the use of thin hydrogel coatings to ameliorate endovascular treatment related difficulties.

Abstract: The present disclosure relates to the field of endovascular treatment. More particularly, the present invention uses a modified hydrogel intrasaccular occlusion device designed to implement an endovascular treatment to ameliorating or eliminating aneurysm recurrence, which hydrogel may optionally be impregnated with pharmaceutical compounds. The present invention also teaches the use of thin hydrogel coatings to ameliorate endovascular treatment related difficulties.

Abstract: Disclosed are coating compositions, processes, and designs for endowing vascular devices with thromboresistant and endothelializing properties. Also disclosed are designs of vascular devices used as aneurysm treating devices for assisting in the delivery, packing, and maintenance of embolization coils within an aneurysm, particularly a neurovascular aneurysm.

Abstract: An improved left atrial appendage (LAA) occluder is provided. The improved LAA occluder includes a sealing disc and an anchoring device, both of which are mutually connected, At least two flow blocking membranes are arranged in the sealing disc. A part, cooperating with an LAA, of the anchoring device is an anchoring net, and the anchoring net is of a backboneless structure. The whole anchoring device is of the backboneless structure. The anchoring device is formed by weaving metal wires, a distal end of the anchoring device is opened, a proximal end of the anchoring device is constricted and is connected with the sealing disc to form a conical net, the distal end of the anchoring device is opened and is rolled towards the proximal end to form the anchoring net, and the anchoring net surrounds the conical net.

Abstract: A catheter includes a detachable tip assembly that when detached from the catheter may be used to occlude a body lumen or vessel. The detachable distal tip assembly may include an inflatable balloon disposed over and secured to a tubular member. The inflatable balloon may be in fluid communication within an inflation lumen extending within the catheter body. Upon reaching a target site within a body lumen or vessel, the detachable distal tip assembly may be released from the distal end of the catheter upon inflation of the balloon to a predetermined size.

Abstract: An apparatus for intermittent vascular occlusion based on a personalized tourniquet pressure (PTP) includes a dual-purpose tourniquet cuff having an inflatable bladder, a sensor module having a pulsation sensor communicating pneumatically with the inflatable bladder for sensing and characterizing pressure pulsations indicative of a distal occlusion pressure (DOP) to identify a minimum pressure at which penetration of blood past the cuff is stopped, a PTP estimator responsive to the pulsation sensor for producing an estimate of a PTP, wherein the estimate of the PTP is a function of the DOP, an effector module communicating pneumatically with the inflatable bladder for maintaining pressure in the bladder near the PTP during a first time period and for maintaining pressure in the bladder near a second level of pressure during a second time period, and a controller selectively operating the inflatable bladder in conjunction with the sensor module and the effector module.

Abstract: A portable compact tourniquet includes a pivot housing, a strap carriage that is linearly translatable relative to the pivot housing, and a screw assembly. When the screw assembly is operated, the strap carriage away from the pivot housing, thus tightening a tourniquet strap that is attached to the strap carriage and to the pivot housing.

Abstract: A hemostatic method is performed as follows: A) An at-puncture hemostatic pressure is applied to a puncture in a blood vessel via a main geometric side, and at least one off-puncture hemostatic pressure is applied to at least one position away from the puncture via at least one auxiliary geometric side, wherein the off-puncture hemostatic pressure acts on the blood vessel either directly or indirectly. B) During the hemostatic process, an ongoing flow velocity of the blood in the blood vessel is obtained and is reduced to lower than a normal flow velocity in the blood vessel by applying the at-puncture and off-puncture hemostatic pressures simultaneously, wherein the at-puncture and off-puncture hemostatic pressures are lower than a systolic pressure in the blood vessel.

Abstract: A point specific junctional tourniquet is provided having a rotational variable height adjustable point specific compression device including an upper housing, a lower housing rotationally nested within the upper housing and a base with an integral belt/strap guide and a belt/strap having a medical clasp, wherein for height adjustment of said upper housing and pressure form, the user grips the upper housing and the lo Aver housing and rotationally twists the two gripped housings causing the height to increase and after the optimum height is reached, depending upon the injury or wound, the assembled rotational variable height adjustable point specific compression device is secured in place and pressure is applied using the belt/strap, held in place within the belt/strap guide. The point specific junctional tourniquet is provided with a smartphone application for use in emergency situation events as required.

Abstract: A pre-fabricated tourniquet that is easy to apply, that ensures consistent and even circumferential pressure, that is light weight, that provides standard life saving operation, and that can be utilized in any setting or situation, and related methods are provided. Mechanically constricting tourniquet apparatus and related methods are provided that are comprised of a tourniquet body, a carriage, a torsion bar, a receiver and a slider. The tourniquet is long enough to encircle a human limb, for example, an arm or leg.

Abstract: Embodiments are disclosed that relate generally to orthopedic treatments, and more particularly, but not by way of limitation, to devices, apparatuses, kits, and methods for an orthopedic device comprising one or more osteotomy plates, guides, and/or cutters (e.g., for bunion removal or for stabilizing a joint or a cut/break line of a fracture).

Abstract: A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes performing at least two two-dimensional X-ray scans of a bone, each of the X-ray scans being taken from different angular positions, generating a digital bone model of the bone based on the X-ray scans, planning the PSI based on the digital bone model, including determining locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A suite of such PSI instruments is also described.

Abstract: Medical devices for creating or expanding a cavity within bone of a patient are disclosed. In some circumstances, a medical device, such as an osteotome is designed to facilitate simultaneous advancement and articulation of a distal portion of the osteotome. Simultaneous advancement and articulation of the distal portion may reduce one or more forces on the distal portion of the osteotome relative to other methods in which advancement and articulation are separated in time, thereby decreasing the risk of breakage or other damage to the osteotome.

Abstract: Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed. Some of the methods include inserting a guide pin into the glenoid of the patient, advancing a reciprocating surgical rasp over the guide pin, reciprocating the surgical rasp so as to abrade bone tissue to form a cavity shaped to receive the glenoid component, and implanting the glenoid component in the cavity.

Abstract: An instrument for preparing an acetabulum. The instrument includes a handle having a reamer coupling feature and a trial coupling feature. The instrument further includes an acetabular reamer having an outer cutting surface and an inner concave surface having an apex. The acetabular reamer has a first handle coupling feature located at the apex adapted to couple to the reamer coupling feature of the handle. A trial having an outer convex surface having an apex is also included. The outer convex surface adapted to fit inside the inner concave surface of the acetabular reamer. The trial has a second handle coupling feature located at the apex of the outer convex surface adapted to couple to the trial coupling feature of the handle.

Abstract: Fixation guide devices and methods for positioning and inserting an intramedullary nail are disclosed. The fixation guide devices include a frame with a first end and a second end, a compression device removably coupled to the first end of the frame, and the intramedullary nail secured to a nail attachment apparatus of the frame. An intramedullary nail including a body with a fastening end, a closed end, and at least two openings is also disclosed. A compression device includes a compression member, a knob, and a bolt secured in the knob and rotatably engaging the compression member is also disclosed. An alignment guide is disclosed and includes a base member, an alignment member, and a fixation guide. A method of inserting an intramedullary nail into two bones for fixation of the two bones is also disclosed.

Abstract: Devices, systems, and methods are generally provided for guiding surgical devices into a desired location and orientation in a bone. In general, the devices can include an elongate guide, a sleeve having an inner lumen therethrough for seating the guide, and a locking mechanism configured to lock a position of the guide with respect to the sleeve. The guide can have a distal, bone-engaging portion that can be laterally offset from an intermediate portion of the guide by a predetermined distance and that can extend distally beyond the sleeve to contact a bony structure. The guide can thus orient and stabilize the sleeve at the predetermined distance from the bony structure to provide for the delivery of one or more surgical devices through the sleeve and into the bone at a desired location and orientation, without requiring a surgeon to actually view the surgical site.

Abstract: A patient specific guide block for a knee includes a plurality of bone interfacing portions and a cutting slot. The plurality of bone interfacing portions are configured to overlie portions of an end of a bone. The bone interfacing portions each have a surface that is generally a negative of the portion of the bone that the respective bone interfacing portion overlies. The bone interfacing portions are angularly offset from each other such that a first of the bone interfacing portions overlies an anterior portion of the bone, and a second of the bone interfacing portions overlies a portion of bone generally perpendicular to the anterior portion of bone. The cutting slot is oriented in a fixed position relative to the bone interfacing portions such that the cutting slot directs a cutting tool at a fixed angle and at a fixed depth relative to the bone interfacing portions.

Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal portion coupled to a proximal end region of the flexible elongate body and extending proximally to a proximal-most end of the catheter advancement element. A hardness of the flexible elongate body transitions proximally towards increasingly harder materials up to the proximal portion forming a first plurality of material transitions. At least a portion of the flexible elongate body is formed of a plurality of layers including a reinforcement layer. An outer diameter of the flexible elongate body is sized to be positioned coaxially within a lumen of a catheter such that a distal tip portion of the flexible elongate body extends distally beyond a distal end of the catheter to aid in delivery of the catheter to an intracranial vessel.

Abstract: Systems and methods for removal of thrombus from a blood vessel in a body of a patient are disclosed herein. The method can include: providing a thrombus extraction device including a proximal self-expanding member formed of a fenestrated structure, a substantially cylindrical portion formed of a net-like filament mesh structure having a proximal end coupled to a distal end of the fenestrated structure; advancing a catheter constraining the thrombus extraction device through a vascular thrombus, deploying the thrombus extraction device by stacking a portion of the net-like filament mesh structure outside of the catheter by distally advancing the self-expanding member until the self-expanding member is beyond a distal end of the catheter; retracting the self-expanding member to unstack the portion of the net-like filament mesh structure and to capture the portion of the thrombus; and withdrawing the thrombus extraction device from the body.

Abstract: A device may include a distal assembly including a first plurality of legs, a second plurality of legs, and a distal tip, and further include a first driver and a second driver, a proximal end of at least one leg of the first plurality of legs may be coupled to the first driver, and a proximal end of at least one leg of the second plurality of legs may be coupled to the second driver. The medical device may include a first longitudinally extending hollow member movably positioned along the first driver and a second longitudinally extending hollow member movably positioned along the second driver. Movement of the first longitudinally extending hollow member relative to the first driver may converge legs of the first plurality of legs, and movement of the second longitudinally extending hollow member relative to the second driver may converge legs of the second plurality of legs.

Abstract: An obstruction removal device is described, having one or more engaging members which can engage portions of the clot. The one or more engaging members have a collapsed, delivery state, and an expanded, deployed state.

Abstract: The present invention provides enhanced ESWL efficacy for therapeutic and operational outcomes. Device behavior and performance data is measured in-situ and analyzed for both intra-procedure and inter-procedure breadth of regard such that both therapy optimization and maintenance optimization engines are provided an accurate and current assessment of ESWL system and device state and performance. This feedback and control provides the ability to compensate in real time for the current patient therapy and offline for future patient therapy for machine/therapy idiosyncrasies and realize continuous calibration of system/devices to the performance required for maximum ESWL patient efficacy.

Abstract: A surgical apparatus is provided for performing turbinate lateralization including a pair of levers connected at a fulcrum, each lever including a handle connected to a bend portion, a pair of shafts, each shaft connected to the bend portion of each of the levers on first side of the fulcrum, where each shaft is dilated laterally with a substantially parallel displacement along a shaft length in response to the pair of levers being brought together on a second side of the fulcrum; a limiter connected to the pair of levers and configured to limit a dilation of the pair of levers in response to the pair of levers being brought together on the second side of the fulcrum; and a limiting bridge configured to attach between the shafts at a predetermined distance from the distal end of each shaft and press against a columella of the patient.

Abstract: The bifurcated forceps includes two pairs of forceps arms resiliently joined at a pivot end of the arms, one arm in each pair being linked to a corresponding arm in the other pair so that the first pair of corresponding arms can be rotated to a spaced radial position from the second pair of corresponding arms, enabling the corresponding forceps arms to grasp a common object at spaced apart positions. The bifurcated forceps may be used for tissue stabilization, and in non-medical applications.

Abstract: The present invention is directed toward devices and methods for use in minimally invasive needlescopic procedures whereby an improved bowel grasper incorporates a means for measuring the pressure applied to a body part is translated to a visual representation. In addition, in an embodiment a rubberized bowel grasper device having a chevron style surface which is used to facilitate grabbing and manipulating body parts is provided. In another embodiment of the present invention and system a device and method for measuring distances inside the abdomen is provided. Further embodiments include bowel graspers with a combination of the above features and functions.

Abstract: Minimally invasive endoscopic and laparoscopic devices and methods for inverting and closing a diverticulum. Devices can include a closing component such as a loop, a clip, or a suture that can allow the diverticulum to be removed or to slough off after necrosis.

Abstract: A ring handled surgical instrument is disclosed which can act as a scissors, a blunt dissector and a gripper. The device is made from flexibly resilient, medical grade sheet material in which the handles are strong enough to withstand without flexion the closure forces imparted by the fingers of a clinician and yet allow the blades on the operative end of the scissors to remain flexibly springy.

Abstract: A medical apparatus, including an insertion tube that includes an outer tube having a proximal end and a distal end configured for insertion into a body cavity, with a radial cutting window opening through a wall of the outer tube in proximity to the distal end. The insertion tube also includes an inner tube, contained in and configured to rotate within the outer tube and including a cutting blade that traverses the radial cutting window opening as the inner tube rotates. The medical apparatus further includes a conductive element disposed over an outer surface of the distal end of the insertion tube, and a conductor running along the insertion tube from the proximal to the distal end and coupled to provide energy to the conductive element.

Abstract: A morcellator includes a housing, an elongated tube extending distally from the housing, and first and second electrodes. A distal end of the elongated tube is configured to cut tissue. The first electrode extends from the housing to the distal end of the elongated tube and is disposed around at least a portion of the distal end of the elongated tube. The second electrode extends distally beyond the first electrode. Another morcellator includes a housing, an elongated tube extending distally from the housing, and an oscillating mechanism. A distal end of the elongated tube includes opposing blade sections and at least one blunt section. The opposing blade sections are configured to cut tissue. The oscillating mechanism is configured to drive oscillation of the elongated tube to cut tissue with the blade sections.

Abstract: Exemplary embodiments of method and apparatus are provided for damaging and/or removing portions of subcutaneous fatty tissue while leaving the overlying dermal layer of the skin substantially undamaged. One or more hollow needles can be provided that include an arrangement within the lumen configured to retain or damage portions of fatty tissue that enter the lumen. Properties of the needle can be selected such that the needle can be inserted into skin and pass through the dermal layer, allowing fatty tissue to enter the distal portion of the lumen as it is advanced further, and then leaving the dermis undamaged when withdrawn. Such exemplary apparatus can include a plurality of such needles, a reciprocating arrangement to mechanically advance and withdraw the one or more needles, and/or a vibrating arrangement.

Abstract: Ultrasonic surgical device is provided. The device includes a shell which holds an energy converter and an amplitude-change pole. The energy converter may include piezoceramic stack that converts electrical signals into mechanical ultrasonic movement in the longitudinal direction of the device. The amplitude-change pole is a mechanical amplifier that uses mass differentials to amplify the ultrasonic motion. A cutting instrument interfaces with the amplitude-change pole. The system also includes a rotary drive device comprising a drive motor also axially arranged with the cutting instrument. The motor rotates the amplitude-change pole, energy converter, and ultimately the cutting instrument. In some embodiments the rate of rotation is at 40-1000 rpm, at 50-650 rpm and at 60-350 rpm depending on configuration.

Abstract: Medical devices and methods for using medical devices are disclosed. A rotational atherectomy device may include an elongate shaft having a proximal end region, a distal end region and a lumen extending therein. The medical device may also include a cutting member positioned adjacent the distal end region of the elongate shaft. The cutting member may include a plurality of helical grooves defined in an outer surface of the cutting member. At least some of the helical grooves may extend at least one full helical rotation about the cutting member. In some cases, at least some of the helical grooves may include a first helical groove extending in a first direction and a second helical groove extending in a second direction that is different from the first direction.

Abstract: Method and system for treating a patient using a compressible, pressure-attenuating device. According to one embodiment, the system is used to treat urinary tract disorders and comprises an access device, a delivery device, a pressure-attenuating device, and a removal device. The access device may be used to create a passageway to an anatomical structure, such as the patient's bladder. The delivery device may be inserted through the passageway created by the access device and may be used to deliver the pressure-attenuating device to the anatomical structure. The removal device may be inserted through the passageway created by the access device and may be used to view the bladder and/or to capture, to deflate and to remove the pressure-attenuating device.

Abstract: Disclosed is an automatic hair transplant apparatus including a needle module in which a hair follicle is inserted, a supplying case which has a magazine shape into which the needle module is inserted like a bullet of a gun, a withdrawing case which has a magazine shape into which the needle module is inserted like a bullet of a gun, and a hair transplanter on which the supplying case and the withdrawing case are mounted and which transplants hair follicles into a scalp by sequentially operating needle modules in the supplying case one by one and inserts needle modules from which hair follicles are removed into the withdrawing case.

Abstract: An automatic hair follicle transplant apparatus of the present invention includes a housing, a needle supply portion, a needle transfer portion, a hair follicle insertion portion, a needle transfer operation portion, and an operation portion.

Abstract: Implantation of a cardiac stimulus system using the intercostal veins. Superior, intercostal, and inferior access methods are discussed and disclosed. Superior access may be performed by entering the brachiocephalic vein from a jugular, subclavian, or other vein, and then accessing the internal thoracic vein, traversing a portion of the internal thoracic vein and then accessing an intercostal vein therefrom. Inferior access may be accomplished inferior to the lower rib margin via the superior epigastric vein, advancing superiorly into the internal thoracic vein and then accessing an intercostal vein therefrom. Intercostal access may include creating an opening in an intercostal space between two ribs and advancing a needle using ultrasound guidance to enter the intercostal vein directly.

Abstract: A method of retrieving a pair of previously implanted magnets from a patient's body includes maneuvering a guide catheter, which includes a guide magnet affixed to its distal end, toward the implantation site of the implanted magnets. The guide magnet is magnetically coupled to one of the implanted magnets in an orientation in which a through hole of the guide magnet is in register with through holes of the first and second implant magnets. An elongate capture member is slid through the lumen of the guide catheter until one of a proximal segment and a distal segment extends through the through holes of the guide magnet and the implanted magnets. An abutment segment of the elongate capture member, which separates the proximal segment and the distal segment is maneuvered into contact with the magnets. Then, the abutment segment, the guide magnet and the implanted magnets are moved as a group away from the implantation site.

Abstract: A bone fastener comprises a first member that defines an implant cavity. A part is disposed with the first member. A retainer is connected with the part and the first member, and includes an expandable orientation and a non-expandable orientation. A second member is connectable to the retainer and configured to penetrate tissue. Implants, systems, instruments and methods are disclosed.

Abstract: A method of assembly for a bone fastener is provided. The method includes the steps of: engaging a retainer with an implant receiver in a relatively fixed position; translating the retainer relative to the implant receiver to an expandable orientation; and manually engaging a screw shaft with the retainer to connect the implant receiver with the screw shaft. Implants, systems and instruments are disclosed.

Abstract: Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include an expandable spacer or member having an unexpanded configuration and an expanded configuration, wherein the expandable member in an expanded configuration has a size, volume and/or shape configured for positioning between the spinous processes of adjacent vertebrae in order to distract the vertebrae relative to each other. The systems include one or more expandable members and an expansion medium for injection within or for filling the interior of the expandable member via the port. The methods involve the implantation of one or more devices or expandable spacers.

Abstract: The present invention provides spinous process implant and associated methods. In one aspect of the invention the implant limits the maximum spacing between the spinous processes. In another aspect of the invention, a spacer has at least one transverse opening to facilitate tissue in-growth. In another aspect of the invention, an implant includes a spacer and separate extensions engageable with the spacer. The spacer is provided in a variety of lengths and superior to inferior surface spacings. In another aspect of the invention, an implant includes a spacer and a cerclage element offset from the midline of the spacer in use so that the spacer defines a fulcrum and the cerclage element is operative to impart a moment to the vertebrae about the spacer. In another aspect of the invention, instrumentation for inserting the implant is provided. In other aspects of the invention, methods for treating spine disease are provided.

Abstract: A new shape changing bone implant and instrument for the fixation of structures to include bone tissue. This new implant stores elastic mechanical energy to exert force on fixated structures to enhance their security and in bone affect its healing response. This unique implant locks into bone and then simultaneously expands and shortens to lock into bone and then pull the bone segments together. This implant once placed changes shape in response to geometric changes in the implant's and bone's materials structure. The implant may be fabricated from any biocompatible material that acts elastically when deformed including but not limited to nitinol, stainless steel, titanium, and their alloys as well as polymers such as polyetheretherketone, silicone elastomer and polyethylene.

Abstract: An intramedullary device, having a first longitudinal axis extending between a proximal end and a distal end thereof, is provided. The intramedullary device may include a first bore and a second bore. The first bore may include a second longitudinal axis and may extend through the intramedullary device between a first opening and a second opening. The second longitudinal axis may define a first angle (?1) with the first longitudinal axis. The second bore may include a third longitudinal axis and may extend through the intramedullary device between the first opening and a third opening. The third longitudinal axis may define a second angle (?2) with the first longitudinal axis.

Abstract: A system including an intramedullary nail and an insert dimensioned to be positioned within the intramedullary nail. The insert can include a rotating component configured to rotate about a rotational axis transverse to a longitudinal axis of the intramedullary nail. The insert can be configured to receive a bone screw, rotate about the rotational axis as the bone screw is positioned at a selected angle of a plurality of angles relative to the intramedullary nail, and lock the bone screw at the selected angle.