Patent US6902567B2 successfully refreshed from Google Patents.
US6902567B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fixing bone sections separated because of a fracture
Assignee: Intrauma SpA
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Filing: 2001-05-28
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Granted: 2005-06-07
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Expires: 2021-05-28
Abstract
Abstract A device ( 2 ) for fixing bone sections separated because of a fracture comprises a plate ( 4 ) with bores ( 8 ) for the fastening to a bone, a plurality of internally hollow barrels ( 10 ), screwed in the bores ( 8 ) of the plate ( 4 ) and a plurality of compression screws ( 6 ) adapted to be screwed in the bone and then locked in the barrels ( 10 ).
Inventors
- 👤 Nilli Del Medico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/742; A61B17/746; A61B17/80; A61B17/8033; A61B17/8038; A61B17/8047
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
141 words
A device for fixing bone sections separated because of a fracture, the device comprising; a plate with a plurality of bores for fastening said plate to said bone by means of screws thus allowing compression of the plate against the bone; at least one barrel internally equipped with an axial through-hole, said barrel being located in correspondence with one of said bores, said bore being a threaded bore and said at least one barrel and said plate being separate pieces that can be rigidly coupled by screwing said barrel in said threaded bore; at least one compression screw adapted to be received in said barrel and screwed in said bone; wherein said at least one barrel has an elongate portion projecting from said plate and a threaded end portion adapted to be screwed in a corresponding threaded bore in said plate.
Claim 2
Independent Claim
141 words
A device for fixing bone sections separated because of a fracture, the device comprising; a plate with a plurality of bores for fastening said plate to said bone by means of screws thus allowing compression of the plate against the bone; at least one barrel internally equipped with an axial through-hole, said barrel being located in correspondence with one of said bores, said bore being a threaded bore and said at least one barrel and said plate being separate pieces that can be rigidly coupled by screwing said barrel in said threaded bore; at least one compression screw adapted to be received in said barrel and screwed in said bone; wherein said at least one barrel has an elongate portion projecting from said plate and a threaded end portion adapted to be screwed in a corresponding threaded bore in said plate.
Claim 3
Dependent Claim
57 words
A device according to claim 1 , wherein said barrel has an elongate cylindrical portion adapted to penetrate into said bone, and a threaded frustoconical end portion where two mutually perpendicular slots pass through the barrel axis are formed, which slots allow said end portion to become radially compressed during screwing of the barrel into the plate.
Claim 4
Dependent Claim
36 words
A device according to claim 2 , wherein said end portion of the barrel, during screwing of the barrel in the plate, grips the end portion of said compression screw, thereby locking it within the barrel.
Claim 5
Dependent Claim
25 words
The device according to claim 1 , comprising a plurality of threaded bores each adapted to receive a barrel for locking a corresponding compression screw.
Claim 6
Dependent Claim
24 words
The device according to claim 1 , wherein said elongate portion of said barrel is cylindrical and is adapted to penetrate into said bone.
Claim 7
Independent Claim
146 words
A device for fixing bone sections separated because of a fracture, the device comprising: a plate with a plurality of bores for fastening said plate to said bone by means of screws thus allowing compression of the plate against the bone; at least one barrel internally equipped with an axial through-hole, said barrel being located in correspondence with one of said bones; at least one compression screw adapted to be received in said barrel and screwed in said bone, said bore where said barrel is located is a threaded bore and said at least one barrel and said plate are separate pieces that can be rigidly coupled by screwing said barrel in said threaded bore wherein said barrel has an elongate cylindrical portion adapted to penetrate into said bone, and a threaded end portion adapted to be screwed in a corresponding threaded bore in said plate.
Claim 8
Independent Claim
146 words
A device for fixing bone sections separated because of a fracture, the device comprising: a plate with a plurality of bores for fastening said plate to said bone by means of screws thus allowing compression of the plate against the bone; at least one barrel internally equipped with an axial through-hole, said barrel being located in correspondence with one of said bones; at least one compression screw adapted to be received in said barrel and screwed in said bone, said bore where said barrel is located is a threaded bore and said at least one barrel and said plate are separate pieces that can be rigidly coupled by screwing said barrel in said threaded bore wherein said barrel has an elongate cylindrical portion adapted to penetrate into said bone, and a threaded end portion adapted to be screwed in a corresponding threaded bore in said plate.
Claim 9
Dependent Claim
65 words
A device according to claim 6 , wherein said barrel has a longitudinal internal cavity into which a compression screw is inserted, said compression screw comprising an elongate body with a threaded end, which is partly introduced into said cavity, and a head which is screwed, at the side opposite to said barrel, in said elongate body to lock said compression screw in said barrel.
Claim 10
Dependent Claim
46 words
A device according to claim 7 , wherein said head is a screw including a threaded portion, which is screwed in the elongate body of said compression screw, and a widened end portion, which abuts against the barrel thereby allowing compressing the plate against the bone.
Claim 11
Dependent Claim
70 words
A device according to claim 6 , wherein said through-hole of said barrel has a frustoconical, outwardly open first portion, and said screw has a frustoconical head, of complementary shape to the frustoconical first portion of the hole of the barrel, so that, when said screw is inserted into the barrel and screwed in the bone, the head is locked by compression within the corresponding frustoconical portion of the barrel.
Claim 12
Dependent Claim
24 words
A device according to claim 9 , wherein said elongate cylindrical portion of the barrel has smaller external diameter than said threaded first portion.
Claim 13
Dependent Claim
26 words
A device according to claim 6 , wherein said through-hole of said barrel is internally threaded to engage a threaded elongate body of the compression screw.
Claim 14
Dependent Claim
45 words
A device according to claim 6 , wherein said cylindrical first portion of the barrel is defined upwardly by an abutment ring that, when the barrel is screwed in the plate, is received in a corresponding annular cavity formed about the bore receiving said barrel.
Claim 15
Independent Claim
79 words
A device for fixing bone sections separated because of a fracture, the device comprising; a plate with at least one threaded bore for fastening said plate to the bone; a barrel having a threaded end portion adapted to be threaded into said at least one threaded bore for securing said barrel to said plate, and a cylindrical portion adapted to penetrate the bone; and a threaded member adapted to be received within said barrel and screwed into said bone.
Claim 16
Independent Claim
79 words
A device for fixing bone sections separated because of a fracture, the device comprising; a plate with at least one threaded bore for fastening said plate to the bone; a barrel having a threaded end portion adapted to be threaded into said at least one threaded bore for securing said barrel to said plate, and a cylindrical portion adapted to penetrate the bone; and a threaded member adapted to be received within said barrel and screwed into said bone.
Claim 17
Dependent Claim
20 words
The device as recited in claim 13 wherein said barrel includes an axial threaded bore for receiving said threaded member.
Claim 18
Dependent Claim
15 words
The device as recited in claim 14 wherein said threaded member comprises a compression screw.
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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) | 2008-06-06 | 2008-12-06 | 2009-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-06-06 | 2012-12-06 | 2013-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-06-06 | 2016-12-06 | 2017-06-07 | $7700.00 | Window Closed / Lapsed |