Customizable augments and methods for acetabular implants
AssigneeZimmer, Inc.
InventorsEdward J. McPherson, Jacob Macke
Life of this patent
Estimating the term…
Abstract
An augment for supporting an acetabular shell at an acetabulum of a hip bone. In some examples, the augment can include a body having a first surface and a second surface opposite the first surface. The body can extend from a first end portion that is adapted to be fixed to an acetabular shell, to a second end portion. The body can include a first hole and a second hole, each of the first and second holes extending through the body from the first surface to the second surface. The body can be formed of a porous material that promotes boney ingrowth and can further include a trim marker located in between the first hole and the second hole.
Claims17
An augment for supporting an implant at a bone and for attaching the implant to the bone of a patient, the augment comprising:
- a body having a first surface and a second surface opposite the first surface, the body extending along a longitudinal axis from a first end portion to a second end portion and defining a longitudinal body length therebetween, wherein the first end portion is adapted to be fixed to the implant, and the first end portion has a concave third surface that intersects the first surface at a first end of the third surface and the second surface at a second end of the third surface and is shaped to conform to an exterior surface of the implant, and wherein the body comprises a porous material that promotes boney ingrowth such that the second surface comprises the porous material that promotes boney ingrowth and the first surface comprises a smooth surface;
- a first hole and a second hole, each of the first and second holes extending through the body from the first surface to the second surface;
- and
- a trim marker located in between the first hole and the second hole, wherein the trim marker indicates a location on the body to cut through the porous material and the smooth surface to separate the second end portion of the augment in order to reduce the longitudinal body length of the augment.
A buttress augment for supporting an acetabular shell at a bone, the buttress augment comprising:
- a body having a first surface and a second surface opposite the first surface, the body extending along a longitudinal axis from a first end portion to a second end portion and defining a longitudinal body length therebetween, wherein the first end portion is adapted to be fixed to the acetabular shell, and the first end portion has a concave third surface that extends from the first surface to the second surface, faces in a direction different from the first surface and the second surface, and is shaped to conform to an exterior surface of the acetabular shell, wherein the second surface comprises a porous material that promotes boney ingrowth and the first surface comprises a smooth surface;
- a first hole and a second hole, each of the first and second holes extending through the body from the first surface to the second surface;
- and
- a trim marker located in between the first hole and the second hole, wherein the trim marker indicates a location on the body to separate the second end portion of the augment in order to reduce the longitudinal body length of the augment.
An augment for supporting an implant at a bone and for attaching the implant to the bone of a patient, the augment comprising:
- a body having a first surface and a second surface opposite the first surface, the body extending along a longitudinal axis from a first end portion to a second end portion, wherein:
- the body has a longitudinal length defined between the first end portion and the second end portion;
- the first end portion is adapted to be fixed to the implant, the first end portion having a concave third surface that extends between the first surface and the second surface and is shaped to conform to an exterior surface of the implant;
- and
- the body comprises a porous material that promotes boney ingrowth such that the first surface comprises a smooth surface and the second surface comprises the porous material that promotes boney ingrowth;
- a first hole and a second hole, each of the first and second holes extending through the body from the first surface to the second surface;
- and
- a trim marker located in between the first hole and the second hole;
- wherein the trim marker indicates a location on the body to cut through the porous material and the smooth surface to separate the second end portion of the augment;
- wherein the trim marker includes a first recess in the first surface and a second recess in the second surface, the second recess aligned with the first recess;
- and
- wherein separating the second end portion reduces the longitudinal length of the body.
Dependencies are inferred from the claim text.