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Artificial intervertebral disc with lower height
US9439775B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9439775-B2 |
| Application number | US-201414285411-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 22, 2014 |
| Priority date | Mar 11, 2008 |
| Publication date | Sep 13, 2016 |
| Grant date | Sep 13, 2016 |
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Abstract
Official abstract text for this publication.
An intervertebral disc is provided having an upper plate, a lower plate, and a core. The upper and lower plates include outer vertebral body contacting surfaces which are provided with attachment enhancing features to ensure bone integration. The attachment enhancing features shown include one or more fins, serrations and teeth. An opposite surface of the plates from the vertebral body contacting surfaces is formed with a recess which serves as a bearing surface for the core. In order to form an intervertebral disc with a lower disc height, at least one of the recesses is provided opposite a corresponding dome shaped portion on the vertebral body contacting surfaces. This allows the plates to be formed with a thinner profile for a smaller overall disc height. In addition to providing a lower overall height to the artificial disc, the dome shaped portion of the plates also provides a more anatomically shaped outer vertebral body contacting surface.
First claim
Opening claim text (preview).
What is claimed is: 1. An intervertebral disc comprising: an upper plate having an upper vertebra contacting surface and a lower bearing surface, wherein the upper surface of the upper plate has a convex central portion and at least one anchoring element extending from an upper surface of the convex central portion, and wherein the lower bearing surface has a concavity disposed opposite the convex central portion and wherein the convex central portion and the concavity have matchi…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61F2/30771Primary
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9439775B2 cover?
- An intervertebral disc is provided having an upper plate, a lower plate, and a core. The upper and lower plates include outer vertebral body contacting surfaces which are provided with attachment enhancing features to ensure bone integration. The attachment enhancing features shown include one or more fins, serrations and teeth. An opposite surface of the plates from the vertebral body contacti…
- Who is the assignee on this patent?
- Spinalmotion Inc, Simplify Medical Pty Ltd
- What technology area does this patent fall under?
- Primary CPC classification A61F2/30771. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 13 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).