US6206924B1
Expired / Lapsed
US
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Three-dimensional geometric bio-compatible porous engineered structure for use as a bone mass replacement or fusion augmentation device
Assignee: Biomet Manufacturing LLC
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Filing: 1999-10-20
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Granted: 2001-03-27
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Expires: 2019-10-20
Abstract
Abstract The invention provides a three-dimensional geometric porous engineered structure for use as a bone mass replacement or fusion augmentation device. The structure is a space-filling, self-supporting structure constructed of rigid filaments joined together to form regular, repeating geometric shapes. The structure supports the skeletal structure as well as the surrounding tissue during rehabilitation and/or bone fusion. Further, the structure provides many open intersticial areas, which are appropriately shaped and sized for bone in-growth. One preferred geometric structure is based on repeating modified dodecahedrons which are built from pentagons. The resulting structure has two transverse planes of bilateral symmetry. Other embodiments include disc shaped structures and structures having open internal areas to allow the possibility of auto graft, allograft, or artificial bone substitute.
Inventors
- 👤 Jens Peter Timm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/4465; A61F2/28; A61F2/442; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30133; A61F2002/30138; A61F2002/30149; A61F2002/30199; A61F2002/302; A61F2002/3028; A61F2002/30316; A61F2002/30329; A61F2002/30535; A61F2002/30593; A61F2002/30621; A61F2002/30622; A61F2/30767; A61F2002/3092; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0015; A61F2230/0017; A61F2230/0063; A61F2230/0065; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00179
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
27 words
A self-supporting bio-compatible porous three dimensional structure for skeletal rehabilitation comprising; inter-connected rigid filaments collectively defining a series of at least two repeating ordered open 3-dimensional shapes.
Claim 2
Dependent Claim
27 words
A self-supporting bio-compatible porous three dimensional structure for skeletal rehabilitation comprising; inter-connected rigid filaments collectively defining a series of at least two repeating ordered open 3-dimensional shapes.
Claim 3
Dependent Claim
24 words
A self-supporting porous three-dimensional structure a set forth in claim 1 , wherein said filaments are connected so as to define repeating geometric shapes.
Claim 4
Dependent Claim
22 words
A self-supporting porous three-dimensional structure a set forth in claim 2 , wherein at least one of said repeating shapes are five-sided.
Claim 5
Dependent Claim
23 words
A self-supporting porous three-dimensional structure a set forth in claim 3 , wherein at least one of said repeating shapes is a pentagon.
Claim 6
Dependent Claim
23 words
A self-supporting porous three-dimensional structure a set forth in claim 2 , wherein at least one of said repeating shapes is 10 sided.
Claim 7
Dependent Claim
19 words
A self-supporting porous three-dimensional structure a set forth in claim 5 , wherein said shape is a modified dodecahedron.
Claim 8
Dependent Claim
17 words
A self-supporting porous three-dimensional structure a set forth in claim 1 , wherein the filament is metal.
Claim 9
Dependent Claim
17 words
A self-supporting porous three-dimensional structure a set forth in claim 7 , wherein the filament is titanium.
Claim 10
Dependent Claim
19 words
A self-supporting porous three-dimensional structure a set forth in claim 8 , wherein said structure is a bone implant.
Claim 11
Dependent Claim
35 words
A self-supporting porous three-dimensional structure a set forth in claim 9 , wherein said structure is a three-dimensional, self-supporting, space-filling structure having interconnected solid elements together defining repeating open structures and having no shear planes.
Claim 12
Dependent Claim
31 words
An orthopedic implant comprising; a structure having sides, each side comprising non-random inter-connected 3-dimensionally oriented bio-compatible filaments which define pores, said structure being substantially free from planes predisposed to shear failure.
Claim 13
Dependent Claim
31 words
An orthopedic implant comprising; a structure having sides, each side comprising non-random inter-connected 3-dimensionally oriented bio-compatible filaments which define pores, said structure being substantially free from planes predisposed to shear failure.
Claim 14
Dependent Claim
23 words
An orthopedic implant as set forth in claim 11 further comprising a void internal to said structure for bone graft or bone substitute.
Claim 15
Dependent Claim
38 words
An orthopedic implant as set forth in claim 11 , wherein said structure has a top which defines a substantially planar first surface and a bottom, which defines a substantially planar surface substantially parallel to said first surface.
Claim 16
Dependent Claim
22 words
An orthopedic implant as set forth in claim 13 , wherein said filaments are connected so as to define repeating geometric shapes.
Claim 17
Dependent Claim
20 words
An orthopedic implant as set forth in claim 14 , wherein at least one of said repeating shapes are five-sided.
Claim 18
Dependent Claim
21 words
An orthopedic implant as set forth in claim 15 , wherein at least one of said repeating shapes is a pentagon.
Claim 19
Dependent Claim
21 words
An orthopedic implant as set forth in claim 16 , wherein at least one of said repeating shape is 10 sided.
Claim 20
Dependent Claim
17 words
An orthopedic implant as set forth in claim 17 , wherein said shape is a modified dodecahedron.
Claim 21
Dependent Claim
15 words
An orthopedic implant as set forth in claim 11 , wherein the filament is metal.
Claim 22
Dependent Claim
15 words
An orthopedic implant as set forth in claim 19 , wherein the filament is titanium.
Claim 23
Dependent Claim
47 words
An orthopedic implant comprising a structure having a central opening surrounded by at least one mesh wall having pores oriented in three dimensions and comprising bio-compatible, metallic filaments which are interconnected to form discrete sub-components which comprise a repeating pattern of geometric shapes that define said pores.
Claim 24
Dependent Claim
47 words
An orthopedic implant comprising a structure having a central opening surrounded by at least one mesh wall having pores oriented in three dimensions and comprising bio-compatible, metallic filaments which are interconnected to form discrete sub-components which comprise a repeating pattern of geometric shapes that define said pores.
Claim 25
Dependent Claim
23 words
An orthopedic implant as set forth in claim 21 wherein said filaments are connected to form at least two basic repeating geometric configurations.
Claim 26
Dependent Claim
17 words
An orthopedic implant as set forth in claim 22 wherein said filaments define multiple planes of symmetry.
Claim 27
Dependent Claim
14 words
An orthopedic implant as set forth in claim 23 wherein said filaments are titanium.
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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) | 2004-03-26 | 2004-09-25 | 2005-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-26 | 2008-09-25 | 2009-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-26 | 2012-09-25 | 2013-03-27 | $7700.00 | Window Closed / Lapsed |