6 results about "Acetabular component" patented technology

The application provides a femoral stem prosthesis and a hip joint prosthesis with the same, wherein the femoral stem prosthesis comprises: a mounting block comprising a first block body and a second block body, the second block body being arranged on the side of the first block body, and the first block body and the second block body being capable of relative movement; a guide structure arranged between the first block body and the second block body, the guide structure extending along the axial direction of the first block body; a locking assembly arranged between the first block body and the second block body to fix the first block body and the second block body; a support column swingably arranged on the second block body, and an acetabular component arranged on the support column; and a fixing mechanism arranged below the first block body and capable of being inserted into the medullary cavity. The technical scheme of the application effectively solves the problem that the relative position of the neck stem of the femoral stem and the stem body cannot be adjusted in the related art.

A hip prosthesis that comprises an acetabular component and a femoral component. The acetabular component comprises a shell having an approximate shape of a hollowed spherical cap, and optionally comprises a liner. The femoral component comprises a stem portion, a neck portion that is joined to the stem portion, and a spherical head that is affixed to the neck portion. The acetabular component is configured to receive all or a portion of the spherical head of the femoral component. Further, the acetabular component comprises one or more magnets, and the femoral component comprises a spherical magnet that is rotatable within the spherical head, such that the one or more magnets of the acetabular component and the spherical magnet of the spherical head of the femoral component are oriented to generate an attractive force therebetween.

An acetabular component of an orthopedic joint prosthesis, comprising: an outer shell for attachment to the acetabulum; a liner at least partially provided within the outer shell to provide a contact surface for a femoral component of the orthopedic joint prosthesis; and an adapter at least partially provided within the outer shell, wherein the liner is at least partially within the adapter. The adapter allows the use of a wider range of liners with the given shell.

Functional patient-specific acetabular component alignment is important in total hip arthroplasty. A method for acetabular component alignment by calculating pelvic tilt from an anteroposterior radiograph of the pelvis of a patient may be replicated intraoperatively for patient-specific alignment. A system for automated generation of the pelvic tilt from an anteroposterior radiograph presented improves the efficacy and accuracy of total hip arthroplasty.

A hip prosthesis that comprises an acetabular component and a femoral component. The acetabular component comprises a shell and optionally a liner. The shell has an approximate shape of a hollowed spherical cap, in which the shell comprises one or more magnets. The femoral component comprises a stem portion, a neck portion that is joined to the stem portion, and a spherical head that is affixed to the neck portion and comprises a spherical magnet that is rotatable within the spherical head. The acetabular component is configured to receive all or a portion of the spherical head of the femoral component. Further, the one or more magnets of the acetabular component and the spherical magnet of the spherical head of the femoral component are oriented to generate an attractive force therebetween.

This utility model belongs to the field of medical device testing technology and discloses a mechanical performance verification device for a combined acetabular component. It includes a mounting base, a testing component, and a clamping and positioning mechanism. The testing component is mounted on the mounting base. The clamping and positioning mechanism includes an electric push rod and a U-shaped lifting frame. The upper end of the U-shaped lifting frame slides through the top of the mounting base. Both ends of the upper part of the U-shaped lifting frame are equipped with clamping components that can adjust the clamping distance according to the diameter of the combined acetabular component. The top of the mounting base is equipped with a positioning component that can fully limit the arc-shaped bottom of the combined acetabular component. The positioning component is located between the two clamping components. This utility model, through its clamping components, can adjust the clamping distance according to the diameter of the combined acetabular component. The positioning component can limit the arc-shaped bottom of components of different sizes, adapting to various specifications of combined acetabular components and improving the versatility of the device.