Abstract: A method of manufacturing a femoral stem for a hip implant includes forming a femoral neck extending from a proximal end of the femoral stem towards a distal end of the femoral stem, forming an upper section connected to and extending from the femoral neck towards the distal end of the femoral stem, and forming a lower section connected to and extending from the upper section to the distal end of the femoral stem. Further, a method for designing a femoral stem for a hip implant includes generating a customized femoral stem model to match an information of a patient, generating at least one proximal-distal solid rib in the upper section, calculating density and stress distributions for an open lattice and for a closed lattice, and selecting a unit cell type and a pore size for the open lattice and the closed lattice to match a density and/or a stiffness of the patient's femur.

Abstract: A prosthetic capsular device configured to be inserted in a natural capsular bag of an eye after removal of a lens includes a housing structure capable of containing an intraocular device. The housing structure includes a posterior side, an anterior side opposite the posterior side, lateral sides extending between the posterior side and the anterior side, and a cavity at least partially defined by the posterior side, the anterior side, and the lateral sides. The posterior side includes a refractive surface and an opening radially outward of the refractive surface. The anterior side includes an aperture capable of allowing at least one of insertion, removal, and replacement of an intraocular device. The cavity is capable of containing an intraocular device.

Abstract: A method of placing a prosthetic system over a residual limb, said method comprising the steps of: providing the prosthetic system; and placing an outer shell of the prosthetic system on the residual limb having an above-knee amputation, the outer shell at least partially surrounds the residual limb, an outer side and an inner side of the outer shell on opposite sides of the residual limb, an upper edge of the outer side above a greater trochanter, the inner side below a lowest edge of an ischium without being directly below the lowest edge of the ischium.

Abstract: An adjustable socket system includes a base, longitudinal supports connected to the base and extending along a longitudinal axis, and shell components operatively connected to the longitudinal supports and defining a receiving volume adapted to receive a residual limb. The adjustable socket system is radially expandable between open and closed configurations. The shell components include a first shell component having distal and proximal parts that are longitudinally displaceable with respect to one another such that a length of the first shell component is adjustable between a first length and a second length different than the first length.

Abstract: A wide range depth of focus vortex IOL or other optical device or element and processes for manufacturing same.

Abstract: A method, system and devices for the reconstruction of ribbon shaped ligaments following the anatomical native insertion sites of the ligaments in the corresponding bones is described. The reconstruction of the anterior cruciate ligament of the human knee is depicted. The system includes a device for positioning and creating bone-tunnels, the preparation of grafts and the fixation thereof. The devices intended for bone tunnel creation take into account the ribbon-shaped nature of the ligament and can be adjusted to patient specific anatomy and take into consideration the various typologies of the ligament insertion sites. The method and devices for graft preparation are construed to reflect the anatomy of ligaments under consideration as close as possible to native ligaments by imitating the ribbon-like nature of native ligaments. The presented fixation methods follow this principle and are intended to support the ribbon-like nature of the grafts and are intended to support in-growth of the grafts.

Abstract: An arthroplasty trial assembly for a human shoulder can include a first implant securable to a first bone and a second implant securable to a second bone. The second implant can include a body, a stem, an articulation component, and a sensor. The stem can extend from the body, and the stem can be insertable into the second bone. The articulation component can be coupled to the body opposite the stem, and the articulation component can be articulable with the first implant. The sensor can be connected to the articulation component and can be configured to monitor a condition of the second implant and can produce a sensor signal as a function of the condition that is indicative of stability of the shoulder.

Abstract: A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.

Abstract: An ophthalmic lens to be attached in or near an eyeball includes a first region that is near an optical axis; a second region that is farther from the optical axis than the first region; and a third region that is farther from the optical axis than the second region, the first region applies a first phase difference of 3 rad or more of a third phase difference with respect to the third region; the second region applies a second phase difference continuously connecting phase differences of the first region and the third region, and continuously changing in accordance with a distance from the optical axis; and the third region applies the third phase difference varying in accordance with the distance from the optical axis around a reference value, wherein a variation amplitude of the third phase difference is not less than 0.1 rad and less than the first phase difference.

Abstract: The invention features a glenoid (shoulder socket) implant prosthesis, a humeral implant prosthesis, devices for implanting glenoid and humeral implant prostheses, and less invasive methods of their use for the treatment of an injured or damaged shoulder.

Abstract: Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial.

Abstract: An arthrodesis implant (1) for promoting the osseous fusion of a first bone (2) with a second bone (3), the implant (1) comprising a primary component (4) including a primary anchoring body (5) and a male connector (6), and a secondary component (7) including a secondary anchoring body (8) and a female connector (9), the female connector (9) comprising: a main body (10) which extends longitudinally between a rear end (11) linked to the secondary anchoring body (8) and an opposite front face (12), and which has a lateral wall (14) linking the rear end (11) to the front face (12), a housing (15) formed within the main body (10) and configured to receive the male connector (6) in order to link together the primary (4) and secondary (7) components, the female connector (9) further comprising an opening (18) which is formed in the main body (10), in communication with the housing (15), and which extends continuously on both the front face (12) and the lateral wall (14), and which is sized and configured to enable

Abstract: A method and system provide an ophthalmic lens including a lens body having a chamber therein, a reservoir module coupled with the lens body and an optical fluid. At least part of the lens body is flexible. The reservoir module includes a reservoir and a heat sensitive portion bordering the reservoir. The reservoir has a reservoir volume and is fluidically connected with the chamber. The heat sensitive portion has a shape responsive to a temperature of at least forty five degrees Celsius such that the reservoir volume changes in response to at least part of the heat sensitive portion reaching the temperature. The optical fluid resides in the chamber and the reservoir. A change in the reservoir volume flows a portion of the optical fluid between the reservoir and the chamber such that the flexible portion of the lens body undergoes a shape change corresponding to a base power change.

Abstract: Systems and methods are disclosed for a powered ankle prosthesis. The prosthesis may comprise a polycentric mechanism having a defined path for an instantaneous center of rotation. The path of the instantaneous center of rotation may be defined by a trajectory substantially equal to an arc positioned over a joint of the polycentric mechanism.

Abstract: Ionized radiation-absorbed, dose sensitive, highly flexible polymeric compositions are provided that exhibits multidirectional changes in refractive index. Also provided are methods of producing a precision multi-directional nanogradient of refractive index in a polymeric composition.

Abstract: An arthrodesis implant (1) allowing promoting the bone fusion of two bones is provided, the implant (1) comprising: a rigid and non-deformable anchoring body (4), designed to ensure the anchoring of the implant (1) in a first bone (2), and a deformable portion (5) designed to ensure the anchoring of the implant (1) in a second bone. The deformable portion (5) comprises at least two anchoring arms (9, 10) which protrude beyond the anchoring body (4) from the base end (7) of the anchoring body (4), the anchoring arms (9, 10) being separated from each other by a free space (E) so as to be able to be brought closer to each other by deformation of the anchoring arms under the action of the second bone. At least one of the anchoring arms (9, 10) is provided with a longitudinal reinforcing fin protruding beyond the anchoring arm (9, 10) from a lateral side (20) of the anchoring arm (9, 10).

Abstract: A distal radioulnar joint prosthesis for replacing the distal radioulnar joint and a method for its implantation is provided. Such a device includes an ulnar component, a radial component, and a motion liner. The ulnar component includes a stem, a collar, and a shell. The radial component includes a hemispherical ball and plate. The hemispherical ball of the radial component is secured with the radial plate and articulates with the ulnar shell via the motion liner. The prosthesis is designed to more accurately replicate the biomechanics of the distal wrist than currently used implants.

Abstract: The present invention relates to an articular joint replacement system. The system has first and second components. Each component has a tapered head piece for covering the end of a bone and for acting as an articular surface, an integrally formed screw stem having a length sufficient to extend into the medullary canal, and inwardly angled bone grips affixed to the underside of the head piece to allow solid fixation to the bone by compression press fit. The head piece of the first component is provided with a shaped exterior surface which complements the shaped exterior surface of the head piece of the second component and which allows motion in three planes.

Abstract: This disclosure relates compositions comprising upconverting core-shell nanocrystals and photoactive compositions and methods using these compositions to modify treat myopia and other ocular conditions. In some cases, the methods use near infrared irradiation to adjust the refractive power of light adjustable intraocular lenses.

Abstract: A mask is provided that is configured to increase the depth of focus of a patient. The mask can include an aperture configured to transmit along an optical axis substantially all visible incident light. The mask can further include a portion surrounding at least a portion of the aperture. The portion may be configured to be substantially opaque to visible electromagnetic radiation and be substantially transparent to electromagnetic radiation transmitted from an ocular examination device (e.g., substantially transparent to at least some non-visible electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm).