摘要:
An orthopedic cast walker boot (10), that includes a tubular enclosure (12) formed of a semi-flexible material having a first section member (20) for covering the rear of the calf (15), ankle (16), heel (19), and sole (17) of the foot; and a second section member (38) for interfitting with the first section member (20); the second section member (38) having an upper section (40) for covering the shin area (21) of the leg (14), and a lower section (60) for covering the top area (23) of the foot. The upper (40) and lower sections (60) being integrally connected by a pliable and flexible intermediate connecting section (52) having multiple joints (53). Velcro fastening straps (27, 29, 30) are provided for fastening and enclosing the first (20) and second (38) section members to form the tubular enclosure (12) about the leg (14), ankle (16), and the foot of the wearer; and traction treads means (25) are adhesively attached to the bottom surface of the first section member (20).
摘要:
A calcar trial includes a stem (10) having a proximal end (20) and a distal end (22), and a body (12). The body (12) is engaged with the stem (10) near the proximal end (20) of the stem (10) and is slidable with respect to the stem (10). A locking mechanism inhibits movement of the body (12) with respect to the stem (10) when desired. A collar (46) extends radially outward from the stem (10) to surround a portion of the body (12). The body (12) and stem (10) are configured so that the diameter of the calcar trial at a point between the collar (46) and the distal end (22) of the stem (10) increases as the body (12) is moved toward the distal end (22) of the stem (10) and decreases as the body (12) is moved away from the distal end (22) of the stem (10). The proximal end (20) of the stem (10) can include opposed notches (62,64) that are egagable by a forked tool (66). A curved distal stem portion (80) can be secured to the distal end (22) of the stem (10).
摘要:
A medical fastening system for a modular knee prosthesis system includes a femoral component having a first surface, a second surface, and an aperture extending therebetween. A modular adapter element has a first end that is mountable adjacent the first surface of the femoral component and a second, mating end that is engagable with a second prosthesis component. The system also includes a first bolt that mates the adapter element to the femoral component. Various connection options are possible to secure different components of the system to each other.
摘要:
A plug (10) for apertures in an acetabular cup (20) is provided. The plug is particularly useful in plugging screw holes (21). The plug helps to prevent plastic particles from a plastic bearing seated within the cup, from migrating through the aperture into the bone cavity or acetabulum surrounding the acetabular cup.
摘要:
An implantable article having on at least a portion of its exterior surface an integral, as-cast macrotextured surface with macropores having undercut edge profiles. A complex macrotextured surface is provided by forming a casting mold so that the mold has complementary macrotextured surface features formed by three-dimensional printing techniques, and casting a molten metal within or in contact with the casting mold to form the implantable article. In a hybrid process, one or more printed surface mold plates are attached by hand, or in a wax molding process, to a simpler wax preform, and an investment is made in which the plates are incorporated into the investment mold. A casting is then made, with each preform yielding one cast article, and the incorporated plate forming the desired surface macrotexture on a region of the cast article. Pore size, porosity and pore shape may be varied across the surface, or varied with depth, to independently enhance different mechanical and physiological factors at the one-prosthesis interface.
摘要:
A polyurethane casting tape with controlled tack is disclosed. The tackiness of the polyurethane is controlled by the addition of combinations of Kurrol salts, potassium metaphosphate and a sodium salt.