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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0367408 (2012-02-07) |
| 등록번호 | US-9445903 (2016-09-20) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 387 |
A prosthesis to replace a portion of the anatomy, such as the acetabulum, can include a first portion. A second prosthesis portion can be positioned relative to the shell to provide the bearing surface to articulate with a femoral head prosthesis or femoral head. The second prosthesis portion can in
A prosthesis to replace a portion of the anatomy, such as the acetabulum, can include a first portion. A second prosthesis portion can be positioned relative to the shell to provide the bearing surface to articulate with a femoral head prosthesis or femoral head. The second prosthesis portion can include a connection portion to engage a connection portion in the shell.
1. An acetabular implant assembly for positioning in an anatomy, comprising: a shell with a shell wall extending from a proximal apex portion to a distal rim, the distal rim defining a first passage operable to receive a liner, wherein the shell has an internal wall surface defining an internal void
1. An acetabular implant assembly for positioning in an anatomy, comprising: a shell with a shell wall extending from a proximal apex portion to a distal rim, the distal rim defining a first passage operable to receive a liner, wherein the shell has an internal wall surface defining an internal void and an external wall surface;a first connection portion formed in the shell by the internal wall near the distal rim;a second connection portion formed in a bore defined by a bore wall that extends through the shell wall from the internal wall surface to the external wall surface near the proximal apex portion;a curved wall portion defined by the shell wall extending between the first connection portion and the second connection portion;wherein the distal rim of the shell defines a rim plane and a central line extending substantially normal to the rim plane extends through the proximal apex portion;wherein the first connection portion and the second connection portion are separated completely by a division line transverse to the central line defined in the shell;a first liner having a first liner distal rim, a first liner proximal apex, a first liner connection portion formed by an exterior of the first liner configured to engage the first connection portion near the first liner distal rim, and an alignment nipple disposed at the first liner proximal apex that is aligned with and received by the bore extending through the shell wall, the alignment nipple having a smooth exterior such that the alignment nipple is not retained by the second connection portion formed in the bore; anda second liner defining a second liner distal rim, a second liner proximal apex, and a second liner connection portion configured to engage the second connection portion near the second liner proximal apex, wherein the second liner connection portion includes a locking nipple extending along a nipple axis from an outer surface of the second liner and an extending portion that extends substantially transverse to the nipple axis,wherein the extending portion is configured to pass, engage, and be retained by the second connection portion, andwherein the first liner is formed of a first material that is more rigid than a second material that forms the second liner. 2. The implant assembly of claim 1, wherein the first connection portion includes a taper and the second connection portion includes a groove; wherein the first connection portion and the second connection portion are configured to be engaged without rotation. 3. The implant assembly of claim 1, wherein the division line is defined at least between a distal third of the shell and a proximal third of the shell. 4. The implant assembly of claim 1, further comprising: a femoral implant including a femoral head having a surface operable to move relative to at least one of the first liner or the second liner. 5. The implant assembly of claim 1, wherein the extending portion includes a first wall that extends substantially perpendicular to the nipple axis and a second wall that is angled relative to the nipple axis. 6. The implant assembly of claim 5, wherein the second connection portion includes a ledge extending into the bore from the bore wall to engage the extending portion.
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