Sleeve for modular revision hip stem
US-9216087-B2 · Dec 22, 2015 · US
Dual modulus hip stem and method of making the same
US11020232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11020232-B2 |
| Application number | US-201414548370-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 20, 2014 |
| Priority date | Jun 18, 2012 |
| Publication date | Jun 1, 2021 |
| Grant date | Jun 1, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of manufacturing an orthopaedic prosthesis for a patient, comprising: producing a shed from a metallic foam material having a first elastic modulus, producing a stem core from a metallic material having a second elastic modulus greater than the first elastic modulus, the stem core including a neck configured to receive a femoral head component, a collar, and a stem body that extends from the collar to a distal tip, the stem body comprising a proximal segment that extends distally from the collar and a distal segment that extends distally from a distal end of the proximal segment to the distal tip, and securing the shell to the stem body such that (i) the shell completely encases the proximal segment of the stem body, (ii) the shell covers a lateral surface of the distal segment of the stem body from the distal end of the proximal segment through an area adjacent the distal tip, and (iii) a medial surface of the distal segment of the stem body from the distal end of the proximal segment through the area adjacent the distal Up is devoid of the shell. 2. The method of claim 1 , wherein securing the shell to the stem body includes sintering the shell to the stem body. 3. The method of claim 1 , wherein producing the shell from the metallic foam material includes: compressing the metallic foam material around the stem core, and machining the metallic foam material to form the shell. 4. The method of claim 1 , wherein producing the shell from the metallic foam material includes: compressing the metallic foam material to form an outer geometry of the shell, and machining a channel in the metallic foam material sized to receive the stem core.
Assignees
Inventors
Classifications
- A61F2/3662Primary
Femoral shafts · CPC title
by means of a press {; Diffusion bonding} · CPC title
specially adapted for particular articles or work · CPC title
Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium · CPC title
differing in porosity · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11020232B2 cover?
- An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
- Who is the assignee on this patent?
- Depuy Synthes Products Inc
- What technology area does this patent fall under?
- Primary CPC classification A61F2/3662. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jun 01 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).