US5041139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring element for supporting a joint mechanism of an ankle, hip or other reconstructed joint
Assignee: Medevelop AB
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Filing: 1989-09-13
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Granted: 1991-08-20
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Expires: 2009-09-13
Abstract
Abstract An anchoring element for supporting a joint mechanism of a reconstructed joint is discussed. The anchoring element includes an at least partially hollow guide and centering sleeve for supporting the joint mechanism. The anchoring element is compatible with bone and marrow tissue and has a surface which can be at least partially osseo-integrated with the tissue to achieve permanent anchorage in the bone and marrow tissue. The anchoring element can be used to reconstruct an ankle joint or a hip joint.
Inventors
- 👤 Per-Ingvar Brånemark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:53
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/42; A61F2/38; A61F2/30767; A61F2/30771; A61F2/32; A61F2/36; A61F2/3601; A61F2/4202; A61F2/3609; A61F2/3662; A61F2/367; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30878; A61F2002/30884
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
An anchoring element for supporting a joint mechanism of a reconstructed joint, said anchoring element comprising an at least partially hollow guide and centering sleeve for supporting the joint mechanism, said anchoring element being formed of material which is compatible with bone and marrow tissue, said anchoring element having a surface which can be at least partially osseo-integrated with the tissue to achieve permanent anchorage in the bone and marrow tissue; a front plate, said sleeve protruding from said front plate, said sleeve having a slit and a hollow cavity for connecting the joint mechanism to said anchoring element; and an insert removably positioned in said sleeve, said insert covering said slit and said hollow cavity.
Claim 2
Dependent Claim
116 words
An anchoring element for supporting a joint mechanism of a reconstructed joint, said anchoring element comprising an at least partially hollow guide and centering sleeve for supporting the joint mechanism, said anchoring element being formed of material which is compatible with bone and marrow tissue, said anchoring element having a surface which can be at least partially osseo-integrated with the tissue to achieve permanent anchorage in the bone and marrow tissue; a front plate, said sleeve protruding from said front plate, said sleeve having a slit and a hollow cavity for connecting the joint mechanism to said anchoring element; and an insert removably positioned in said sleeve, said insert covering said slit and said hollow cavity.
Claim 3
Dependent Claim
108 words
An anchoring element for supporting a joint mechanism of a reconstructed joint, said anchoring element comprising an at least partially hollow guide and centering sleeve for supporting the joint mechanism, said anchoring element being formed of material which is compatible with bone and marrow tissue, said anchoring element having a surface which can be at least partially osseo-integrated with the tissue to achieve permanent anchorage in the bone and marrow tissue; and a substantially flat, winglike plate protruding from said sleeve; wherein said sleeve has a major axis, said winglike plate having longitudinal corrugations and holes with cutting edges, said longitudinal corrugations being parallel to said major axis.
Claim 4
Dependent Claim
108 words
An anchoring element for supporting a joint mechanism of a reconstructed joint, said anchoring element comprising an at least partially hollow guide and centering sleeve for supporting the joint mechanism, said anchoring element being formed of material which is compatible with bone and marrow tissue, said anchoring element having a surface which can be at least partially osseo-integrated with the tissue to achieve permanent anchorage in the bone and marrow tissue; and a substantially flat, winglike plate protruding from said sleeve; wherein said sleeve has a major axis, said winglike plate having longitudinal corrugations and holes with cutting edges, said longitudinal corrugations being parallel to said major axis.
Claim 5
Dependent Claim
23 words
The anchoring element of claim 2, wherein said anchoring element is an anchoring element for supporting a joint mechanism of an ankle joint.
Claim 6
Dependent Claim
23 words
The anchoring element of claim 2, wherein said anchoring element is an anchoring element for supporting a joint mechanism of a hip joint.
Claim 7
Dependent Claim
14 words
The anchoring element of claim 2, wherein said anchoring element is not rotationally symmetrical.
Claim 8
Dependent Claim
14 words
The anchoring element of claim 2, wherein said anchoring element consists entirely of titanium.
Claim 9
Dependent Claim
37 words
The anchoring element of claim 2, further comprising an anchoring screw, said winglike plate including a hole for receiving said screw, said screw being located at an end of said winglike plate facing away from said sleeve.
Claim 10
Dependent Claim
27 words
The anchoring element of claim 2, further comprising an attachment screw, said screw having two different diameters for positioning said screw with respect to said winglike plate.
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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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |