摘要:
An acetabular cup prosthetic device (1) comprised of an outer shell component (10) and an inner bearing insert (70) and the method of implanting the acetabular cup prosthetic within a patient. The outer surface of the shell component for the present invention acetabular cup has a plurality of regions which conform to the curvature of at least one ellipsoid. To implant the shell component, the acetabulum of a patient is spherically reamed to a size slightly smaller than that of the outer surface of the shell component. As the shell component is inserted into the spherically shaped acetabulum, the interior surface of the acetabular cavity deforms to assume a substantially ellipsoidal curvature, producing an interference fit between the rim region of the shell component and the upper peripheral rim region of the acetabulum.
摘要:
An acetabular cup prosthetic device (1) comprised of an outer shell component (10) and an inner bearing insert (70) and the method of implanting the acetabular cup prosthetic within a patient. The outer surface of the shell component for the present invention acetabular cup has a plurality of regions which conform to the curvature of at least one ellipsoid. To implant the shell component, the acetabulum of a patient is spherically reamed to a size slightly smaller than that of the outer surface of the shell component. As the shell component is inserted into the spherically shaped acetabulum, the interior surface of the acetabular cavity deforms to assume a substantially ellipsoidal curvature, producing an interference fit between the rim region of the shell component and the upper peripheral rim region of the acetabulum.
摘要:
An acetabular cup prosthetic device (1) comprised of an outer shell component (10) and an inner bearing insert (70) and the method of implanting the acetabular cup prosthetic within a patient. The outer surface of the shell component for the present invention acetabular cup has a plurality of regions which conform to the curvature of at least one ellipsoid. To implant the shell component, the acetabulum of a patient is spherically reamed to a size slightly smaller than that of the outer surface of the shell component. As the shell component is inserted into the spherically shaped acetabulum, the interior surface of the acetabular cavity deforms to assume a substantially ellipsoidal curvature, producing an interference fit between the rim region of the shell component and the upper peripheral rim region of the acetabulum.
摘要:
A prosthetic foot comprises a ground engaging bottom resilient member, a resilient heel member, and a resilient toe member that collectively circumscribe an open volumetric space. The members resilient compress to absorb compressive force throughout the entire stride of an individual utilizing the foot. The prosthetic foot stores energy during a heel strike phase of a gait cycle, and releases energy during a toe-off phase of the gait cycle in order to assist forward movement of a user. During the gait cycle, a loading response during the heel strike phase compresses the heel member and the toe member, and causes a deflection of the rear portion of the bottom member. Furthermore, an upward deflection of at least one of the bottom member and the toe member stores energy during the transition from the heel strike phase to the toe-off phase of the gait cycle.
摘要:
An apparatus and method for stabilizing first and second adjacent bone portions. The apparatus has a spacer configured to be placed between the first and second bone portions and at least one stabilizer configured to be joined: a) to each of the first bone portion and the spacer; and b) to at least one of the first bone portion and spacer by being translated relative to the at least one of the first bone portion and spacer.
摘要:
A prosthetic foot comprises a ground engaging bottom resilient member, a resilient heel member, and a resilient toe member that collectively circumscribe an open volumetric space. The members resilient compress to absorb compressive force throughout the entire stride of an individual utilizing the foot.
摘要:
A prosthetic foot comprises a ground engaging bottom resilient member, a resilient heel member, and a resilient toe member that collectively circumscribe an open volumetric space. The members resilient compress to absorb compressive force throughout the entire stride of an individual utilizing the foot.
摘要:
The invention relates to a base (1) that includes 1) a means (11) for osseous attachment onto a tibia, and ii) a plate (13) having posterior, anterior, medial and lateral edges; a posterior pin (15.1) and an anterior pin (15.2) having a posterior flat section (16.1) and an anterior flat section (16.2); two posterior lugs (17.1, 18.1) protruding above the plate (13) and arranged on the posterior edge (14.1) of each side of the posterior pin (15.1); and two anterior lugs (17.2, 18.2) arranged on each side of the anterior pin (15.2). The posterior flat section (16.1) and the anterior flat section (16.2) are arranged so as to simultaneously engage with the insert. Each posterior tab (17.1, 18.1) comprises a support extension (17.11, 18.11) for inserting, in an anteroposterior direction, a complementary support tab (57.11, 58.11) of the insert. Each anterior lug (17.2, 18.2) comprises a means for snap-coupling the insert onto the base (1).