Abstract: A multifocal IOL including at least one diffractive surface including a plurality of discrete, adjacent, diffractive, concentric rings, having a radial phase profile cross-section with a near-symmetrical diffractive surface topography, and an odd number, greater than three, of diffractive orders and an asymmetrical distribution of energy flux over the diffractive orders.

Abstract: The stent graft (10) is to be placed in a tubular tissue and is equipped with: a skeleton portion (11); a tubular graft portion (12) having, in part of a tube wall, a side opening (opening 121a of branch portion 121) that communicates with the lumen, the graft portion being provided along the skeleton portion; and a position adjustment portion (13) capable of adjusting the relative position of the side opening in the graft portion when the stent graft is placed in the tubular tissue.

Abstract: An intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine is provided. The upper surface and the lower surface of the implant each have a contact area capable of engaging with anatomy in the treated area, and the upper and lower surfaces define a through-hole having an inner surface extending through the spacer body. A first and second sidewalls extend from a front end and a back end, wherein the first and second sidewalls are configured with engagement portions positioned in close proximity to the front end and the back end. The front end and the back end are configured with a threaded hole for receiving an instrument for inserting the intervertebral implant into the intervertebral disc space.

Abstract: An assist device includes a first worn component worn on at least one of a shoulder and a chest of a user, a second worn component worn on one of a hip and a pair of right and left legs of the user, a belt member provided along a back side of the user over the first worn component and the second worn component, an actuator provided on one of the first worn component and the second worn component, a position detection unit configured to obtain a position parameter indicating a position of the user, and a controller configured to obtain a required output in a direction to wind up the belt member from the actuator based on the position parameter and configured to control operation of the actuator.

Abstract: An embodiment of the present invention provides a hip joint link apparatus including: an upper body link fixed to an upper body of a wearable robot, and a hip joint jointer linking a thigh link linked to a thigh of the wearable robot, wherein the hip joint jointer has a four-revolute joint structure including a plurality of revolute joints and a plurality of links; an arbitrary input moment to the hip joint jointer is changed to an output moment in a predetermined direction based on a state of being transmitted to the plurality of links through the plurality of revolute joints; and the hip joint jointer assists a flexion moment, an extension moment, an abduction moment, and an adduction moment.

Abstract: A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The anchor may include various features to enhance the fixation of the base, including hooks, threads, and/or expandable members that may be transitioned from a contracted insertion condition to an expanded implanted condition once the base is positioned in the bone. The anchor and/or collar may also include additional features to enhance fixation, such as geometries and surface features to enhance fixation to bone. The anchor may include a plurality of chisel slots to facilitate removal of bone during a revision surgery.

Abstract: A method of inserting an intraocular optic assembly having at least an optic and ring members that are interconnected to one another with a plurality of stanchions can include winding at least one of the structures relative to at least another one of the other structures about a central optic axis whereby at least some of the stanchions are drawn around an intermediate or middle ring member and in between the optic and an outer ring member. The method can also include folding, after the winding, the intraocular optic assembly in half while retaining the at least some of the plurality of stanchions in between the optic and the outer ring member. The method can also include inserting, after the folding, the intraocular optic assembly in an eye through a slit in a cornea of the eye.

Abstract: The present invention generally relates to medical hardware for use in spinal stabilization, spinal fusion, spinal alignment and similar spinal surgical procedures. Specifically, the invention relates to a cervical plate with an integrated screw lock mechanism.

Abstract: The disclosure provides an assisting device control system capable of appropriately fixing a brace to the body of a wearer. A control system S includes: a waist sensor 10f, a right leg sensor 14f, and a left leg sensor 14g detecting a tension factor when a brace is worn; a tension recognition part 25 recognizing a tension from the tension factor; and a driving control part 26 controlling the driving of an assisting device 1. The driving control part 26 permits the driving of the assisting device 1 if the recognized tension is within a permission range, which has a predetermined lower limit value and a predetermined upper limit value.

Abstract: Disclosed is a para-bi-cycling knee joint prosthesis for interconnecting a prosthetic lower leg and a prosthetic thigh, the knee joint prosthesis including an upper body portion configured to support a socket adapter, for connection with a prosthetic thigh; a lower body portion extending from the upper body portion and configured to connect with a prosthetic lower leg; a pair of ball bearings mounted on ends of a pivot shaft, the pivot shaft forming un upper part of the lower body portion, the upper body portion having left and right upper body portions, each configured to receive the external surface of one of the bearings, thus enabling rotation between the upper and lower body portions; the rotation allowing for flexion between the upper and the lower body portions of at least 140 degrees; and the upper body portion having an extended surface configured to engage a complementarily-shaped surface of the lower body portion, to prevent the backward rotation of the knee joint.

Abstract: Implantable corneal and intraocular implants such as a mask are provided. The mask can improve the vision of a patient, such as by being configured to increase the depth of focus of an eye 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 transition portion that surrounds at least a portion of the aperture. This portion can be configured to switch from one level of opacity to another level of opacity through the use of a controllably variable absorbance feature such as a switchable photochromic chromophore within a polymer matrix.

Abstract: Method to design manufacture an intraocular lens, comprising an optical part and haptics part, in which the optical part comprises an anterior surface with negative refractive power and a posterior surface with positive refractive power, in which in order to determine the refractive power D of the anterior surface of the optical part and the refractive power D? of the posterior surface of the optical part the following steps are performed: a plurality of light rays are provided over the normal eye, both on the optical axis (1001) and forming different angles (714, 715, 716) with respect to the optical axis (1001), for each light ray with its angle the axial length of the eye and the refractive power of the cornea are measured, determination of the shape of the retina (200) through a mathematical fit to an aspherical surface that contains the measured points, calculation of the arc length S that goes from the intersection of the optical axis with the retina (200) of the eye to the intersection of the light

Abstract: Systems and methods are described herein for a prosthetic device that includes a premade outer shell socket with an inner surface contour. A prosthetic insert socket is manufactured via a manufacturing process, such as three-dimensional printing, to have an outer contour that corresponds to the inner surface contour of the premade outer shell socket. The prosthetic insert socket is manufactured to have an inner contour that corresponds to a residual limb surface contour of a patient.

Abstract: An IOL base compression device having an IOL towing mechanism is described.

Abstract: A time-dependent decay behavior is incorporated into one or more joint actuator control parameters during operation of a lower-extremity, prosthetic, orthotic or exoskeleton device. These parameters may include joint equilibrium, joint impedance (e.g., stiffness, damping) and/or joint torque components (e.g., gain, exponent). The decay behavior may be exponential, linear, piecewise, or may conform to any other suitable function. Embodiments presented herein are used in a control system that emulates biological muscle-tendon reflex response providing for Reflex Parameter Modulation a natural walking experience. Further, joint impedance may depend on an angular rate of the joint. Such a relationship between angular rate and joint impedance may assist a wearer in carrying out certain activities, such as standing up and ascending a ladder.

Abstract: Disclosed herein are embodiments of a powered prosthesis. In one embodiment, the powered prosthesis may include a first joint actuator; a second joint actuator; a connector to connect the first joint actuator with the second joint actuator; and a power source connected with both the first and second joint actuator; wherein the first joint actuator and the second joint actuator are both at least backdrivable and configured such that when one of the first or second joint actuator is drawing power from the power source, the other of the first or second joint actuator may be generating power for the power source. In some embodiments, the first motor is at least a high output torque motor. In other embodiments, the second motor is at least a high output torque motor.

Abstract: An outer frame for a prosthetic limb is provided. The outer frame is formed from one or more parts and has a plurality of air flow openings.

Abstract: A virtual aperture integrated into an intraocular lens is disclosed. Optical rays which intersect the virtual aperture are widely scattered across the retina causing the light to be virtually prevented from reaching detectable levels on the retina. The use of the virtual aperture helps remove monochromatic and chromatic aberrations yielding high-definition retinal images. For a given definition of acceptable vision, the depth of field is increased over a larger diameter optical zone. In addition, thinner intraocular lenses can be produced since the optical zone can have a smaller diameter. This in turn allows smaller corneal incisions and easier implantation surgery.

Abstract: In some embodiments, a body anchor for supporting an assistive device can include: a cuff to exert a compression force on a body part of a user; and one or more tensile elements having first ends and second ends. The first ends of the tensile elements can be configured to be attached to the assistive device. The second ends of the tensile elements can be arranged about the cuff to cause the compression force to vary in proportion to a load exerted by the assistive device.

Abstract: Bone-contacting surfaces and free surfaces of orthopedic implants. The implants are additively manufactured, followed by mechanical, chemical, or mechanical and chemical erosion. At least some of the surfaces of the implants include an osteoinducting roughness that has micro-scale structures and nano-scale structures that facilitate and enhance osteoinduction and osteogenesis, as well as enhanced alkaline phosphatase, osterix, and osteocalcin expression levels along the pathway of mesenchymal stem cell differentiation to osteoblasts.