Abstract: A clamping device and method for human-medicine or veterinary-medicine applications for the frictionally engaged locking of at least two holding segments, the clamping device has a first holding segment, a second holding segment; a driveable spindle, via which a rotational movement can be converted into an axial longitudinal movement for spindle-locking the second holding segment, and a threaded plate. In this case, the threaded plate can be moved axially in the opposite direction during the spindle movement, wherein, by counter-movement of the threaded plate, at least one wedge body is moveable in a ramp system, in order to clamp the first holding segment.

Abstract: A medical device inspection scope may include a cylindrical outer layer having a diameter of less than 2 millimeters or even less than 1 millimeter, a cylindrical inner layer disposed concentrically within the outer layer, a circumferential space between the outer layer and the inner layer, and an inner lumen formed by the inner layer. The scope also includes multiple light transmitting fibers disposed in the circumferential space and a camera module disposed in the inner lumen. The light fibers may be designed to transmit illumination light and ultraviolet light. The scope may also optionally include a stiffening member.

Abstract: A curable composite material containing nanodiamonds, denture bases and other dental prosthetics made from the composite material and methods for treating dental stomatitis using these prosthetics.

Abstract: In one aspect, a method for manufacturing a glazed dental prosthesis includes at least the steps of: a) providing a dental prosthesis body; b) position sensitive application of a predetermined amount of a glaze composition to at least a part of the dental prosthesis body surface, wherein the glaze comprises a heat sensitive coloring indicator and wherein this step is performed one or more times; c) controlling the applied glaze amount at least at one position of the glazed dental prosthesis body surface by assessing the color intensity at that position; and d) subjecting the coated dental body to a heat treatment to form the glazed dental prosthesis, wherein the temperature in the heat treatment is larger or equal to the de-composition temperature of the heat sensitive color indicator, wherein at least 90 mol-% of the coloring indicator are transformed into the colorless leuko-form.

Abstract: An oral irrigator having an irrigator tip, the tip including a handle portion, a tip portion, a channel in fluid communication with the tether and arranged within the handle portion and the tip portion, and an actuator located on or within the handle portion, the actuator arranged to at least partially altar a flow of a fluid through the channel. The oral irrigator further includes a housing, the housing having a reservoir in fluid communication with a pump sub-assembly, a sensor arranged to measure a first pressure or first electrical load within the pump sub-assembly, and a control unit arranged to control an operational current provided to the pump sub-assembly where operation of the actuator produces a second pressure or electrical load measured by the sensor and the control unit is arranged to alter the operational current of the motor in response to the change.

Abstract: An inversion maintenance device has a case, an inverting mechanism, and a control system. The case forms an inversion space. The inverting mechanism has an inverting base and multiple adapting modules. The inverting base is pivotally mounted in the inversion space. The adapting modules are mounted on the inverting base. Each of the adapting modules has an adapting port. The inverting base is capable of inverting to make the adapting port face downward and cover the inversion space. Dental handpieces can be mounted on the adapting modules. The control system has a control module and an operation input terminal. The operation input terminal is electrically connected to the control module and is capable of controlling the control module to inject a working fluid with pressure into the dental handpiece via the adapting module.

Abstract: A teeth whitening system that emits electromagnetic radiation onto surfaces of a user's teeth and may also dispense a tooth whitening material for contact with the user's teeth. In one aspect, the teeth whitening system includes a mouthpiece comprising a wall and a bite platform extending from the wall that collectively define a first channel for receiving a user's teeth and an electromagnetic radiation source coupled to the mouthpiece and configured to emit electromagnetic radiation onto surfaces of the user's teeth that are positioned in the first channel. The teeth whitening system may also include an opening in the wall through which a tooth whitening material may be dispensed into the channel. The tooth whitening system may alternatively include apertures in the wall or bite platform through which a tooth whitening material can be dispensed.

Abstract: This invention relates to a tooth repair system including a method of: drilling an aperture in, e.g., a broken anterior tooth to a predetermined depth; providing a fiber optic—preferably of a diameter of between 0.3 and 1 millimeter and elastic modulus of between 22 GPa and 83 GPa—with a length longer than the predetermined depth; placing and adhering the fiber optic within the first aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface. The system also provides a tooth repair pin with the above characteristics, being acid-etched and silane coated with a carrier sleeve.

Abstract: A method for evaluating an orthodontic appliance. Acquisition of a two-dimensional “appliance image” of teeth at least partially representing the orthodontic appliance in a service position. Acquisition of a two-dimensional “dentition image” of the teeth. If a determination of comparable dental and appliance attributes is not possible from the appliance image and from the dentition image, respectively, conversion of the appliance image and/or of the dentition image so that the appliance image be compatible with the dentition image. Determination of dental and appliance attributes relative to the shape of the tooth represented on the dentition image and relative to the shape of the orthodontic appliance on the appliance image. Comparison of the dental and appliance attributes, followed by determination of at least one score. At least one image is acquired with a mobile phone.

Abstract: Systems, methods, and non-transitory computing device readable media for determining an individualized orthodontic treatment index. One embodiment includes generating a target dental model by modifying an initial dental model, graphically marking dental references on the target dental model including assigning contact points between adjacent first and second teeth of the target dental model, generating a treatment outcome dental model representing the patient's dentition after at least a portion of the orthodontic treatment has been completed, mapping the dental references marked on the target dental model to the treatment outcome dental model, and calculating an individualized treatment index score for the treatment outcome dental model according to one or more differences between the target dental model and the treatment outcome dental model.

Abstract: Series of apparatuses for expanding a patient's palate (“palatal expanders”), including rapid palatal expanders, wherein a left tooth engagement region and a right tooth engagement region are configured to add anti-tipping torque to at least one tooth. Left and right tooth engagement regions may include lingual surfaces with at least one lingual protrusion. Left and right tooth engagement regions may have buccally rotated cavities.

Abstract: A method of cryptographically secured digital dental treatment planning comprises: receiving, at an intraoral scanning system, an intraoral scan of a patient's dentition, wherein the intraoral scan comprises a three-dimensional (3D) surface representing the patient's dentition at a first arrangement; encrypting, at the intraoral scanning system, the intraoral scan to create a cryptographically secured dental record of the patient's dentition; decrypting, at a treatment planning system, the cryptographically secured dental record; determining a target arrangement for the patient's dentition; determining a digital treatment plan for the patient's dentition, wherein the digital treatment plan comprises a series of intermediate arrangements for a series of aligners to move the patient's dentition from the first arrangement toward the target arrangement; adding the digital treatment plan to the cryptographically secured dental record of the patient's dentition; and sending the cryptographically secured dental reco

Abstract: Provided is a medical tape that has a high effect of alleviating a persistent skin irritation during an application duration caused by a residual shrink force associated with a forming shrinkage. A medical tape includes an elastic base member portion film-formed of a solution polymer and having an elastic function, a restoring force preserving portion having inelastic, flexible, and restorable functions, an adhesion portion having a function to apply and hold the elastic base member portion on a skin, and a release portion having a function to protect the adhesion portion. The restoring force preserving portion, the elastic base member portion, the adhesion portion, and the release portion are laminated in this order from an upper layer.

Abstract: The present disclosure relates to one or a combination of an absorbent article's chassis, inner leg cuffs, outer leg cuffs, ear panels, side panels, waistbands, and belts that may comprise one or more pluralities of tightly spaced and/or low Average-Dtex and/or low Average-Pre-Strain elastics to deliver low Pressure Under Strand, while providing adequate Section-Modulus to make the article easy to apply and to comfortably maintain the article in place on the wearer, even with a loaded core, to provide for the advantages described above. Further, the elastomeric laminates of the present disclosure outperform existing laminates currently used for disposable absorbent articles as it relates to one or more key parameters (including Percent Contact Area, 2-98% Height Value, Pressure-Under-Strand, Air Permeability, Water Vapor Transmission Rate, Caliper, Caliper Retention Value, Cantilever Bending, Open Area, Section-Modulus, Rugosity Wavelength, Rugosity Frequency, Graphic Distortion Ratio).

Abstract: The present disclosure relates to absorbent articles comprising belts comprising one or more pluralities of tightly spaced (less than 4 mm, less than 3 mm, less than 2 mm, and less than 1 mm) and/or low decitex (less than 300, less than 200, less than 100 dtex) and/or low strain (less than 300%, less than 200%, less than 100%) elastics to deliver low pressure less than 1 psi (according to the conditions defined by the Pressure-Under-Strand Test in the Method below) under the elastics, while providing adequate modulus of (between about 2 gf/mm and 15 gf/mm), resulting in a Product Hip-to-Waist Silhouette from about 0.8 to about 1.1 and a Product Waist-to-Crotch Silhouette from about 0.8 to about 2.0 to provide for the advantages described above.

Abstract: An absorbent article includes: a topsheet including a projecting-and-depressed region; a backsheet; and an absorbent member arranged between the topsheet and the backsheet. The absorbent article has a longitudinal direction that corresponds to a front-rear direction of a wearer and a width direction that is orthogonal to the longitudinal direction. A plurality of slanting projections (41) are formed in the projecting-and-depressed region (P). The slanting projections (41) project toward the wearer's skin side, and the position of the apex (t) of each slanting projection is deviated toward one side in the longitudinal direction (X) from the central position (41c) located between both ends of the slanting projection (41) in the longitudinal direction (X).

Abstract: An absorbent article of the present invention includes an absorbent core (4) and a topsheet (2) disposed on a skin-facing surface of the absorbent core (4) and having a projecting-and-depressed structure on the skin-facing surface. The absorbent core (4) includes one or a plurality of low-basis-weight portions (41) extending in one direction and having a relatively lower basis weight than other parts of the absorbent core (4). In a plan view, the topsheet (2) includes a plurality of types of projections (24) having different sizes in an overlapping region with the low-basis-weight portions (41).

Abstract: An absorbent article comprising an absorbent core sandwiched between a liquid permeable topsheet and a liquid impermeable back-sheet, and an acquisition distribution system positioned between said topsheet and said absorbent core, wherein the absorbent core comprises absorbent material selected from the group consisting of cellulose fibers, superabsorbent polymers and combinations thereof, wherein said absorbent material is contained within at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap to form one or more channels substantially free of said absorbent material, wherein said channels have a length extending along a longitudinal axis and the absorbent core has a length extending along said longitudinal axis and wherein the length of said channels is from 10% to 95% of the length of said absorbent core and wherein said channels each follow a substantially continuous path such as from a first end of a cha

Abstract: The present invention relates to novel and secure tampons that overcome the problems associated with conventional non-secure tampons, and methods of using the novel and secure tampons.

Abstract: An implant delivery system for delivering a surgical implant attached to a needle to a surgical target site is described. The implant delivery system comprises a handle body, handle insert, and a needle. The handle insert extends through the handle body and includes a proximal end configured to engage with the handle body and a distal end configured to engage the needle. The handle insert is rotatable between a first position in which the needle may be inserted or removed and a second position in which the needle is locked in place.

Abstract: Resorbable three-dimensional implants that can be temporarily deformed, implanted by minimally invasive means, and resume their original shape in vivo, have been developed. These implants are particularly suitable for use in minimally invasive procedures for tissue reinforcement, repair of hernias, and applications where it is desirable for the implant to contour in vivo to an anatomical shape, such as the inguinofemoral region. In the preferred embodiment, the implants are made from meshes of poly-4-hydroxybutyrate monofilament that have reinforced outlying borders that allow the meshes to form three-dimensional shapes that can be temporarily deformed. These implants can resume three-dimensional shapes after being temporarily deformed that contour to the host's tissue or an anatomical shape, for example, in the repair of a hernia, and particularly a hernia in the inguinofemoral region.

Abstract: An implantable prosthesis and a method of attaching the prosthesis to a tissue structure disclosed. The prosthesis includes a body having a first side arranged to face the tissue structure having a defect and second side opposite the first side. One or more adhesive-filled pods are disposed on the first side of the body and selectively openable to supply an adhesive in between the tissue structure and the first side of the prosthesis body after the prosthesis body is positioned relative to the defect. The pods may be pierced, punctured, broken, and/or ruptured to supply the adhesive. A deployment device having a piercer may be used to puncture the pods.

Abstract: An aortic protection device including a mesh lumen shaped and sized to extend along the aorta, from a heart-side of a brachiocephalic artery exit from the aorta to distal of a left subclavian artery exit from the aorta, wherein the mesh lumen is arranged to change a porosity of mesh pores in response to external control. Related apparatus and methods are also described.

Abstract: Devices and methods for treatment of bodily lumens and sphincters are disclosed. Some embodiments include methods and devices for inducing an inflammatory response and development of fibrosis, collagen, and/or scar tissue. In some embodiments, scaffolds may be composed of a matrix of filaments. Application of the methods and devices disclosed herein to treat Gastroesophageal Reflux Disease (GERD) and other sphincter disorders are discussed. Biodegradable scaffolds configured to induce an inflammatory response are also disclosed.

Abstract: Devices and methods for treatment of bodily lumens and sphincters are disclosed. Some embodiments include methods and devices for inducing an inflammatory response and development of fibrosis, collagen, and/or scar tissue. In some embodiments, scaffolds may be composed of a matrix of filaments. Application of the methods and devices disclosed herein to treat Gastroesophageal Reflux Disease (GERD) and other sphincter disorders are discussed. Biodegradable scaffolds configured to induce an inflammatory response are also disclosed.

Abstract: Methods for affixing soft tissue to an implant. The implant has a soft tissue attachment structure that includes a surface defining one or more troughs, and either at least one ingrowth plate spanning a portion of the trough and defining a suture tunnel between the ingrowth plate and trough for receiving a suture, or fixation bridges spanning a portion of the one or more troughs, each fixation bridge and respective trough defining a suture tunnel for receiving suture. Systems for performing the method are also disclosed.

Abstract: An intraocular assembly includes a sulcus fixation frame including at least one anterior haptic restraint member to which a posterior intraocular device receiving member is coupled by means of coupling members. The at least one anterior haptic restraint member includes a sulcus support portion, configured to be received in a sulcus of an eye, and haptic support portions, configured to block anterior movement of haptics of an intraocular device mounted in the sulcus fixation frame or fixate an IOL in the sulcus.

Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature, a refractive region having the base curvature, and a diffractive region comprising a diffractive profile including a plurality of diffractive steps. At least a portion of the diffractive profile constitutes a combination of a base diffractive profile defining multiple foci for the ophthalmic lens and an achromatizing structure that reduces longitudinal chromatic aberrations.

Abstract: A first region is a circular region located at the centermost position. A first refractive power is uniformly added to the first region regardless of the distance from an axis of a lens part. A second region is a ring-like region located outside and adjacent to the first region. In the second region, a refractive power is increased or decreased from the first refractive power as the distance from the axis becomes larger. An outer region is a ring-like region located outside the second region. A reference refractive power for focusing on a far point is added to the outer region. An MTF curve at spatial frequency of 50 lp/mm relating to light passing through a region having a radius of 1.5 mm around the axis has one maximal value and no minimal value in a range of a defocusing value of ?0.5 D to 0.5 D.

Abstract: An intraocular lens implantation injector has a base body and elongated actuation element projecting into a base body rear section and movably guided along an actuation axis. Actuation element movement is generated selectively by axial push actuation or by screw actuation about the axis. The actuation element features an external thread at least on one section. A switch element arranged on the base body is rotatable about the axis and has a passage, through which the actuation element extends. A spring arm arranged at the base body has an inner surface thread engagement structure facing the external thread. The passage features in inner surface having an inner radius varying at least in sections in a circumferential direction. A spring arm outer surface contacts the switch element inner surface. Switch element rotation generates spring arm elastic deformation towards/away from the axis, whereby the thread engagement structure is selectively engaged or disengaged.

Abstract: A first ventricular surface anchor can be placed against a first right ventricular surface, wherein the first ventricular surface anchor is connected to a first tension member. A first tension anchor against a tension anchor surface of a heart, wherein the first tension anchor is connected to a second tension member. The first tension member connected to the first ventricular surface anchor can extend towards the second tension member connected to the first tension anchor; and the first tension member and the second tension member, can be draw the first right ventricular surface toward the first tension anchor. The surface anchor can include a nitinol frame forming an outer perimeter and a hole. The nitinol frame can have an austenite state in a deployed configuration when a temperature of the nitinol frame is body temperature. The surface anchor can also include a grommet comprising a distal tubular portion connected to a proximal finger portion.

Abstract: A delivery system includes a delivery catheter with a capsule configured to carry a prosthesis and a steering catheter for steering the delivery catheter. The delivery catheter can be advanced through a patient's vasculature to a target treatment area. The capsule can be opened and the prosthesis can be deployed into the target treatment area. Additionally, a method for delivering a prosthesis to a target treatment area includes advancing a delivery catheter through a patient's vasculature to the target treatment area, steering the delivery catheter toward the target treatment area, opening a capsule on the delivery catheter, and deploying the prosthesis into the target treatment area.

Abstract: A heart valve therapy system including a delivery device and a stented valve. The delivery device includes an outer sheath, an inner shaft, an optional hub assembly, and a plurality of tethers. In a delivery state, a stent frame of the prosthesis is crimped over the inner shaft and maintained in a compressed condition by the outer sheath. The tethers are connected to the stent frame. In a partial deployment state, the outer sheath is at least partially withdrawn, allowing the stent frame to self-expand. Tension in the tethers prevents the stent frame from rapidly expanding and optionally allowing recapture. Upon completion of the stent frame expansion, the tethers are withdrawn.

Abstract: Prosthetic heart valve devices with tethered anchors and associated systems and methods are disclosed herein. A heart valve device configured in accordance with embodiments of the present technology can include, for example, a valve support for carrying a prosthetic valve. The valve support can be configured to be implanted at an annulus of a native mitral valve. The device can further include at least one elongated flexible member extending from the valve support in a ventricular direction, and an anchor coupled to the valve support via the elongated flexible member. The anchor can be shaped to wrap around an exterior area of an apical portion of the heart. In addition, the anchor can inhibit retrograde migration of the valve support.

Abstract: Fixation device for fixation of leaflets of a heart valve includes a central assembly and at least one arm moveably coupled relative to the central assembly. The at least one arm includes a deformable frame having a first end and a second end and a longitudinal axis defined therebetween, the second end being moveable between a closed position and an open position. The deformable frame further includes first and second deformable flex portions, each flex portion extending along a respective lateral side of the deformable frame and having a deformed condition and an undeformed condition, and each flex portion having an outer lateral edge. The at least one arm has a maximum deformed arm lateral cross-dimension with the flex portions in the deformed condition.

Abstract: Implants, implant systems, and methods for treatment of mitral valve regurgitation and other valve diseases generally include a coaptation assist body which remains within the blood flow path as the leaflets of the valve move, the valve bodies often being relatively thin, elongate (along the blood flow path), and/or conformable structures which extend laterally from commissure to commissure, allowing the native leaflets to engage and seal against the large, opposed surfaces on either side of the valve body during the heart cycle phase when the ventricle contracts to empty that chamber of blood, and allows blood to pass around the valve body so that blood flows from the atrium to the ventricle during the filling phase of the heart cycle. Separate deployment of independent anchors near each of the commissures may facilitate positioning and support of an exemplary triangular valve body, with a third anchor being deployed in the ventricle.

Abstract: A methodology integrating multiscale analysis and design optimization to design a novel bone replacement implant made of a functionally graded cellular material that meets fatigue requirements imposed by cyclic loadings. The pore microarchitecture, described by interconnectivity, porosity, pore size as well as pore topology, is optimally designed for tissue regeneration and mechanical strength. A bone implant with a graded cellular microstructure is also provided.

Abstract: Systems and methods for creating a geometric design definition for 3D models designed to fit physical or digital template objects is disclosed. The 3D models can transform to fit specific physical or digital objects which are different from but topologically isomorphic to the original template objects based on visual or mathematical inputs. To validate the fit, the generated 3D model can be compared with the specific physical or digital objects for which the 3D model is generated to fit, and the geometry of generated 3D model can be adjusted to improve the fit if the generated 3D model is not validated. The accuracy of the fit of the generated 3D models can be improved iteratively.

Abstract: An orthopaedic knee prosthesis includes a femoral component having a condyle surface. The condyle surface is defined by one or more radii of curvatures, which are controlled to reduce or delay the onset of anterior translation of the femoral component relative to a tibial bearing.

Abstract: Humeral prosthetic implants, systems, kits and methods of forming and using the humeral prosthetic implants, systems and kits are disclosed. The humeral prosthetic implants include proximal cup portions and distal stem portions, wherein the proximal cup portion is joined to the distal stem portion at a desired offset and/or angle configured based on an analysis of the humeral diaphysis and/or metaphysis offset in a patient. The humeral prosthetic implants may also include an adapter configured to join the proximal cup component with the stem component, wherein the adapter is configured to join the stem component to the stemless cup at a desired offset and/or angle.

Abstract: A shoulder assembly is provided which includes a base member including a collar; a helical structure extending from the collar in a distal direction; and a first pathway projecting distally of the collar and through the helical structure adjacent to an inner periphery thereof, the first pathway being generally transverse to the helical structure and extending in a space between successive portions of the helical structure; and a locking device comprising a proximal support and a first arm projecting distally of the proximal support, the first arm configured to be disposed in the first pathway projecting distally of the collar when the proximal support is disposed adjacent to the collar; where the first arm is disposed through bone in the space between successive portions of the helical structure when the shoulder assembly is implanted.

Abstract: A glenoid implant may include an articulating surface, a bone contacting surface opposite the articulating surface, and at least one anchor. The bone contacting surface may include a first portion with a first convexity configured to contact a first portion of the glenoid and a second portion with a second convexity configured to contact a second portion of the glenoid. The first convexity may be different than the second convexity. The implant may include a bearing component defining the articulating surface and an augment component defining at least a portion of the bone contacting surface. Anchors or protrusions may extend from the bone contacting surface. The anchors may include a substantially planar surface.

Abstract: An intervertebral fusion cage is disclosed. An intervertebral fusion cage according to an embodiment of the present invention comprises: a body including a receiving part of which upper and lower portions are open, an upper guide part, and a lower guide part; a moving member disposed in the receiving part; a screw which is screw-coupled to the body and moves forwards or backwards relative to the body integrally with the moving member when rotating; an upper plate which has a guided part guided by the upper guide part and is disposed above the body while being engaged with the moving member; and a lower plate which has a guided part guided by the lower guide part and is disposed under the body while being engaged with the moving member.

Abstract: A dynamic intervertebral spacer includes a ring which is split on an anterior portion. A posterior portion of the ring acts as a torsion spring. After implantation, the ring is able to act as a spring between superior and inferior vertebral bodies, thus allowing dynamic bone growth in fusion procedures.

Abstract: An intervertebral fusion cage implant is generally elongate and defines superior and inferior bearing surfaces. The inferior bearing surface has vertebral body engaging interferences and the superior bearing surface has a substantially smooth surface profile, sagittal plane convexity and sagittal plane curvature asymmetry. The sagittal plane convexity defines a saggital plane axis rising anteriorly with respect to a horizontal saggital plane axis. The superior bearing surface defines a central section having coronal plane convexity and lateral sections adjacent the central section.

Abstract: The disclosure herein provides methods, systems, and devices for assisting alignment of humeral or femoral stems during replacement surgery. In one illustrative embodiment, a slotted disk is configured to position a prosthetic stem into a canal in the humerus when the stem is driven through the slot. In another illustrative embodiment, a similar slotted disk structure is configured to position a prosthetic stem into a canal in the femur.

Abstract: A method of inserting a fastener into a fusion cage can include attaching a fastener head of a bone fastener to a flexible bone fastener driver. The method can also include inserting the bone fastener into a threaded throughhole of a fusion cage comprising a front wall, a pair of opposing side walls, a back wall, and top and bottom surfaces adapted for gripping opposed vertebral endplates, wherein the front wall comprises the threaded throughhole.

Abstract: An implantable prosthesis that includes a biased coiling member and a conforming coiling member. The biased coiling member may be biased to curve from a substantially linear configuration to a nonlinear configuration. The conforming coiling member may be engaged with and curved by the biased coiling member from the substantially linear configuration to the nonlinear configuration. The biased coiling member may define a longitudinal axis when in the substantially linear configuration. The biased coiling member and the conforming coiling member may move relative to each other along the longitudinal axis. The prosthesis may be implanted in a surgical procedure that minimizes incision sizes and may be considered less invasive than typical implant procedures, especially spinal implant procedures.

Abstract: A surgical extractor including first and second arms connected to first and second implant-engageable jaws. The first and second arms are connected by first and third links to a stationary screw jack nut and by second and fourth links to a moveable screw jack nut. A driven shaft is rotatably received in the stationary screw jack nut and threadedly received in the moveable screw jack nut, and a drive shaft rotatably drives the driven shaft. Rotation of the drive shaft in a first direction separates the first and second arms and jaws in order to receive an implant. Rotation of the drive shaft in a second direction closes the first and second arms and jaws in order to clamp an implant. A handle assembly engages the drive shaft in order to drive the drive shaft and disengages from the drive shaft to exert a removal force on an implant.

Abstract: A surgical extractor that includes a first arm and a second arm, a linkage assembly connected to the first and second arms, and a driven shaft operatively engaged with the linkage assembly for moving the linkage assembly between first and second positions. The surgical extractor further includes a tensioning shaft engageable with the driven shaft for moving the driven shaft relative to the linkage assembly.