Abstract: A total knee replacement, comprising a femoral and a tibial component in articulating contact that can restore normal joint function. The articulation between the two components is controlled by four guide surfaces.

Abstract: The invention relates to an ankle prosthesis including a talar implant, a tibial implant, and an intermediate implant designed to be mounted to move relative to said talar implant in order to impart mobility to the ankle, said prosthesis further including embedded adjustment structure designed to alternate between a releasing state, in which they allow the intermediate implant to move relative to the tibial implant, and a locking state, in which they hold the prosthesis in the chosen assembly configuration, said prosthesis being characterized in that said adjustment structure can be controlled to be operable while the prosthesis is in the assembled state in vivo.

Abstract: A knee prosthesis comprising a femur component defining a ball-like femoral condyle and a tibia component defining a cavity on its medial side corresponding to the ball-like condyle. The knee prosthesis enables pivoting of the tibia component about the medial side of the femur component as a function of the flexion angle ? as long as there is joint compression applied to the knee prosthesis as exemplified by muscle forces, weight, and ligament tensions, to enforce contact between the tibia component and the femur component. The geometries of the spherical load bearing surfaces of the medial tibia condyle and medial femur condyle provide the kinematic degrees of freedom and the geometric constraints required for proper guiding of the rolling and sliding surfaces of the femoral component and tibial component during articulation of the present knee prosthesis.

Abstract: This invention relates to and orthopedic implant having an expansion means adapted to increase the external surface area of the implant, the expansion means positioned to correspond to voids or depressions in the anatomy of a patient. Also described are method for the design and manufacture of such implants.

Abstract: A glenoid implant is provided and may include a body portion and a stem portion. The stem portion may extend from the body portion along a longitudinal axis. The body portion may include an articular side and a bone-engaging side opposite the articular side. At least a portion of the bone-engaging side may be disposed at a non-parallel angle relative to at least a peripheral edge of the articulation side.

Abstract: Prosthesis for a shoulder joint including a humeral component equipped with a stem, a head component and connection or articulation means of the humeral component with the head component, wherein the prosthesis according to the invention can be used both as a conventional prosthesis and as a reverse-type prosthesis.

Abstract: The present invention regards an elbow spacer device, including: at least one ulnar section, including a stem portion extending along a substantially longitudinal axis (x-x) between a proximal end and a distal end; at least one humeral section, including a stem portion extending along a substantially longitudinal axis (y-y) between a proximal end and a distal end, the distal end of the humeral section delimiting an engagement seat with the proximal end of the ulnar section; articulation means between the distal end of the humeral section and the proximal end of the ulnar section, positionable along an axis (z-z) that is orthogonal to the substantially longitudinal axis (y-y) of the humeral section. The proximal end of the ulnar section is engageable in the housing seat.

Abstract: A reinforced surgical membrane for supporting bone growth by shielding a bone cavity from soft tissue in-growth comprises are a reinforcing layer (2) between a first membrane layer and a second membrane layer (4). The reinforcing layer (2) has defined therein an array of holes (3) which may connect the first and second membrane layers.

Abstract: An implantable medical device for implantation in a hip joint of a human patient is provided. The medical device comprises: at least one artificial hip joint surface adapted to replace at least the surface of at least one of the caput femur and acetabulum. At least one artificial hip joint surface comprises: a positioning hole with at least one opening in said at least one artificial hip joint surface. The hole is adapted to be placed and dimensioned such that the medical device is adapted to be fitted using a positioning shaft and at least partly surround the shaft, for positioning the at least one artificial hip joint surface in a desired position in the hip joint. The hole is adapted to be fitted using the positioning shaft, when the shaft is stabilized and placed in at least one of the femoral bone and the pelvic bone for positioning said medical device inside the hip joint.

Abstract: The invention provides a device for fine adjustment of a prosthetic valve device and a method of adjusting the position of a prosthetic valve after implantation. The adjustment mechanism includes complementary structures on a valve member and device frame that cooperate to provide relative axial and/or angular motion between the valve member and device frame (and thus the native vessel). The adjustment mechanism of the invention may also include a means for selectively maintaining the relative position of the valve member and device frame. The device and method are particularly applicable for use with a modular prosthetic valve device that is assembled in the body lumen.

Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.

Abstract: To provide a porous plate for medical use which can suppress bending along a row direction and, even if a local crack occurs, can inhibit the crack from growing and leading to a fracture. One aspect of the present invention is a porous plate for medical use which is a thin-plate substrate provided with a pore perforation section having a plurality of pores perforated therein and a frame section surrounding the pore perforation section. In this porous plate, the pore perforation section has crosspieces which extend lengthwise and crosswise in continuity with the frame section and partition the pore perforation section into a plurality of parts, and a plurality of pore perforation cells each surrounded by the crosspieces. The pores perforated in the pore perforation cells have a pore diameter calculated as an equivalent circular pore diameter of 1 to 50 ?m, and the center-to-center distance between the adjacent pores is 2 to 200 ?m.

Abstract: An orthopedic prosthesis for use in a hip replacement surgery includes an implantable stem component. The implantable stem component includes a core and a shell extending over the core. The shell includes a polymeric material and is configured to receive a femoral head component. Metal foam may extend over a portion of the shell.

Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a delivery catheter having a diameter of 21 french or less; an expandable anchor disposed within the delivery catheter; and a replacement valve disposed within the delivery catheter. The invention also includes a method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: inserting a catheter having a diameter no more than 21 french into the patient; endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve through the catheter; and deploying the anchor and the replacement valve.

Abstract: A prosthetic device, adapted to be implanted in the human body and adapted to prevent and/or treat an infection that can arise and/or which has arisen at a bone site or at an articular site, wherein the prosthetic device has a prosthetic body provided with at least one surface for coupling, during use, with the bone or articular site and with at least one cavity placed along the coupling surface, wherein the at least one cavity is adapted to include, contain or house at least one pharmaceutical or medical substance.

Abstract: An implantable prosthesis, including a generally tubular substrate and a continuous shape memory member disposed over the outer surface of the substrate. The shape memory member may include a series of zig-zag struts alternating between a first strut with a first length and a second strut with a second length different from the first length. A graft member may be positioned over the substrate and shape memory member.

Abstract: Osteoarthiritis (OA) is the most common disease affecting human joints. Mechanical stress through the joint is one of the most important independent etiological factors. The present invention provides a prosthesis that by passes some of the stress from the joint without destroying the joint surface. It allows may provide a full range of joint movement, while sharing the load with the physiological joint, thereby maintaining the viability of the physiological joint surface. In addition, the prosthesis can accommodate native soft tissue structures in or around the joint, such as ligaments.

Abstract: A first prosthetic ankle component (10) comprising: a first bearing surface (12) configured to engage a second bearing surface (22) of a second prosthetic ankle component (20); and a protrusion (16) or slot (26) on the first bearing surface, the protrusion or slot being configured to engage a respective slot (26) or protrusion (16) in the second bearing surface of the second prosthetic ankle component, wherein the protrusion or slot is further configured such that the interaction with the respective slot or protrusion permits the first and second prosthetic ankle components to slide with respect to one another in an interface plane defined by the interface between the first and second bearing surfaces, and wherein the protrusion or slot is further configured to restrict the first and second prosthetic ankle components moving away from one another in a direction with a component perpendicular to the interface plane.

Abstract: Described are methods of reshaping a cartilage structure. One such method comprises creating a virtual three dimensional image of the cartilage structure; manipulating the virtual three dimensional image of the cartilage structure so as to obtain a virtual three dimensional image of a desired final shape of the cartilage structure; creating a virtual prototype of a device to hold the cartilage structure in the desired final shape of the cartilage structure; manufacturing the device; lasing the cartilage structure; and fitting the manufactured device to the cartilage structure (e.g., ear).

Abstract: The subject matter includes a system and method for providing graphical feedback visualizing forces within a joint through a range of motion of the joint. The method can comprise receiving position data, receiving force data, and generating a graphical representation based on the position data and the force data. The receiving position data can include data for at least one bone of a joint while the at least one bone is moved through a range of motion (ROM). The receiving force data can occur concurrently to receiving the position data and using one or more processors, the force data can be collected from at least one force sensor embedded within a trial prosthesis in the joint. The graphical representation can illustrate changes in the force data versus locations of the bone as it moved through the ROM.