Compression device, bone plate, bone plate assembly, kit, and method
US-2024261007-A1 · Aug 8, 2024 · US
Screw for osteosynthesis and arthrodesis
US9504504B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9504504-B2 |
| Application number | US-201514657308-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 13, 2015 |
| Priority date | Feb 9, 2009 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention relates to a self-tapping and self-boring osteosynthesis screw for compressive orthopaedic surgery, characterised in that, in the bone engagement regions, at both the distal portion (A 1 a ) and at the proximal portion (A 2 a ), the sum of the angles defining the outer taper of the shank (f) and the taper of the crest line of the screw thread pitch (P) is higher than 45°, and in that the leading portion (i.e. the most distal one) of each thread includes a plurality of cutting edges (AR) obtained by stock removal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A screw for insertion into bone comprising: a shaft having a proximal portion defining a screw head, and a distal portion and an unthreaded portion between the proximal and the distal portions, the shaft defining a central axis through the proximal and the distal portions; proximal threads extending along an outer surface of the proximal portion of the shaft; and distal threads extending along an outer surface of the distal portion of the shaft, th…
Assignees
Inventors
Classifications
Human Necessities · mapped topic
- A61B17/863Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9504504B2 cover?
- The invention relates to a self-tapping and self-boring osteosynthesis screw for compressive orthopaedic surgery, characterised in that, in the bone engagement regions, at both the distal portion (A 1 a ) and at the proximal portion (A 2 a ), the sum of the angles defining the outer taper of the shank (f) and the taper of the crest line of the screw thread pitch (P) is higher than 45°, and …
- Who is the assignee on this patent?
- Stryker European Holdings I Llc
- What technology area does this patent fall under?
- Primary CPC classification A61B17/863. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 29 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).