US5147363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw for use in osteosynthesis
Assignee: Individual
•
Filing: 1990-12-19
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Granted: 1992-09-15
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Expires: 2010-12-19
Abstract
Abstract An osteosynthetic screw for the setting of bones or bone fragments has an osteological thread zone and a handle. Stability at the so-called stress points of the screw is improved and the design of the screw is changed to obtain better contact. Finally, angularly stable attachment to the osteological plate is possible.
Inventors
- 👤 Anton Harle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
F; F16; F16B; F16B35/00; F16B35/04; A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/8605; A61B17/8625; F16B35/041; F16B35/048; A61B17/80; A61B17/8033; A61B17/8047
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
66 words
An osteosynthetic screw for setting bones or bone fragments, comprising an osteological thread zone, an extension for coupling the screw to an ostesynthetic accessory, and a threadless handle between said zone and said extension, said zone including a divergent reinforcing portion which is adjacent said handle and has a diameter which increases toward said handle, said portion of said zone extending radially outwardly beyond said handle.
Claim 2
Dependent Claim
66 words
An osteosynthetic screw for setting bones or bone fragments, comprising an osteological thread zone, an extension for coupling the screw to an ostesynthetic accessory, and a threadless handle between said zone and said extension, said zone including a divergent reinforcing portion which is adjacent said handle and has a diameter which increases toward said handle, said portion of said zone extending radially outwardly beyond said handle.
Claim 3
Dependent Claim
51 words
The screw of claim 1, wherein said divergent portion of said zone has a first length and said zone includes a second portion having a second length which is at least 30 percent of the length of said zone, said divergent zone being disposed between said handle and said second portion.
Claim 4
Dependent Claim
23 words
The screw of claim 1, wherein said extension includes a polygonal outline, said second being disposed between said end portion and said handle.
Claim 5
Dependent Claim
20 words
The screw of claim 1, wherein said zone has an external thread of constant depth measured radially of said zone.
Claim 6
Dependent Claim
17 words
The screw of claim 1, wherein said handle includes an unthreaded portion which is adjacent said extension.
Claim 7
Dependent Claim
11 words
The screw of claim 1, wherein said handle includes a sleeve.
Claim 8
Dependent Claim
24 words
The screw of claim 6, wherein said extension includes an externally threaded section and said sleeve has internal threads and mates with said section.
Claim 9
Dependent Claim
30 words
The screw of claim 1, wherein said extension includes an externally threaded section and further comprising a nut mating with said section and having at least one spherical external surface.
Claim 10
Dependent Claim
15 words
The screw of claim 8, wherein said nut has a plurality of spherical external surfaces.
Claim 11
Dependent Claim
11 words
The screw of claim 8, wherein said nut includes a handle.
Claim 12
Dependent Claim
25 words
The screw of claim 1, wherein said extension includes an externally threaded section and further comprising an internally threaded supporting sphere mating with said section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |