Patent US5383931A successfully refreshed from Google Patents.
US5383931A
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US
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Resorbable implantable device for the reconstruction of the orbit of the human skull
Assignee: Synthes USA LLC
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Filing: 1992-01-03
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Granted: 1995-01-24
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Expires: 2012-01-03
Abstract
Abstract A device for the reconstruction of the orbit of the skull is described. The device is produced from biocompatible polymeric preferably from resorbable polymers having a shape of nonporous and/or microporous plates, membranes or films. The device is preshaped into a three-dimensional element to fit into the orbit of the human skull. Fixation elements with holes being integral part of the device, allow attachment of the device to the skull. Anatomical cuts in the body of the device allow through the nerves and vessels of the eye. An oblong shape of the edges of the anatomical cuts, protects the nerves and vessels from being damaged when the nerves and vessels rub against the edge surface.
Inventors
- 👤 Markus Hehli
- 👤 Sylwester Gogolewski
- 👤 Stephan M. Perren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:22
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/58; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8061; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/2875; A61L27/14; A61L27/18; A61B17/8085; A61B17/84; A61B17/86; A61B2017/00004; A61F2/0077; A61F2/30; A61F2/30767; A61F2002/2835; A61F2002/2878; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/30199; A61F2002/30205; A61F2002/3021; A61F2002/30316; A61F2002/30535; A61F2002/30576; A61F2002/30578; A61F2002/30594; A61F2002/30667; A61F2002/30677; A61F2002/30708; A61F2002/3071; A61F2/3094; A61F2/30942; A61F2002/3096; A61F2210/00; A61F2210/0004; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2250/00; A61F2250/0058; A61F2250/0084; A61F2250/0085; A61F2250/0089; A61F2310/00; A61F2310/00005; A61F2310/00179
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
119 words
An implantable device for reconstructing an orbit of a human skull comprising: a. a flat flexible element having a shape which is approximately the shape of a developed curved surface of a frustum of a cone, said surface having a circularly curved bottom rim and a smaller circularly curved top rim; b. said element having an indentation in the top rim adapted to receive eye vessels and muscles; c. said element being made of a material selected from the group consisting of a biocompatible polymeric material and a biocompatible polymeric-ceramic material; and d. said element being three dimensionally shapable and trimmable to form a longitudinally slit curved surface for implantation and adaptation into the skull orbit to be reconstructed.
Claim 2
Dependent Claim
119 words
An implantable device for reconstructing an orbit of a human skull comprising: a. a flat flexible element having a shape which is approximately the shape of a developed curved surface of a frustum of a cone, said surface having a circularly curved bottom rim and a smaller circularly curved top rim; b. said element having an indentation in the top rim adapted to receive eye vessels and muscles; c. said element being made of a material selected from the group consisting of a biocompatible polymeric material and a biocompatible polymeric-ceramic material; and d. said element being three dimensionally shapable and trimmable to form a longitudinally slit curved surface for implantation and adaptation into the skull orbit to be reconstructed.
Claim 3
Dependent Claim
12 words
A device according to claim 1 in which said material is resorbable.
Claim 4
Dependent Claim
13 words
A device according to claim 2 in which said material is a polylactide.
Claim 5
Dependent Claim
28 words
A device according to claim 4 in which said bottom rim is provided with straps of the same material as said element having holes for receiving fixation devices.
Claim 6
Dependent Claim
26 words
A device according to claim 1 in which said material has pores in a size range of 0.1 to 500 μm, and a porosity below 85%.
Claim 7
Dependent Claim
16 words
A device according to claim 5 in which the pore size is 5 to 50 μm.
Claim 8
Dependent Claim
32 words
A device according to claim 1 in which said material has: a molecular weight in a range of 15,000 to 1,000,000 and; a polydispersity in a range of 1.0 to 100 .
Claim 9
Dependent Claim
18 words
A device according to claim 1 having a tensile strength at break of 20 MPa to 5 GPa.
Claim 10
Dependent Claim
18 words
A device according to claim 1 in which said element has a thickness of 0.1 to 3.0 mm.
Claim 11
Dependent Claim
14 words
A device according to claim 11 in which said material carries bone morphogenetic protein.
Claim 12
Dependent Claim
12 words
A device according to claim 1 in which said material is degradable.
Claim 13
Dependent Claim
24 words
A device according to claim 11 in which said material has a molecular weight of 150,000 to 400,000 and a polydispersity 1.1 to 4.5.
Claim 14
Dependent Claim
18 words
A device according to claim 1, wherein said material has a resorption rate of at least four months.
Claim 15
Dependent Claim
17 words
A device of claim 1, wherein said material has a resorption rate of at least 7 months.
Claim 16
Dependent Claim
18 words
A device according to claim 1 having a tensile strength at break of 50 MPa to 600 MPa.
Claim 17
Dependent Claim
18 words
A device according to claim 1 in which the element has a thickness of 0.2 to 2.0 mm.
Claim 18
Dependent Claim
30 words
A device according to claim 1 in which said material is selected from the group consisting of non-oriented polymers, oriented polymers having uniaxial orientation and oriented polymers having biaxial orientation.
Claim 19
Dependent Claim
13 words
A device according to claim 1 in which said material carries antibacterial drugs.
References Cited (Backward Citations)
US3855638A
Cited
US4186448A
Cited
US4596574A
Cited
US5084051A
Cited
US4968317A
Cited
US4968317B1
Cited
US4919672A
Cited
US5139497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |