EP0622052A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for manufacturing a membrane for controlled bone regeneration
Assignee: Ceka NV
•
Filing: 1994-04-23
•
Granted: —
•
Expires: 2014-04-23
Abstract
Abstract Method for manufacturing a membrane (11) for controlled bone regeneration at the height of a defect in the bone (1), characterized in that a digital image is made of the bone showing the defect for which an increase in volume is required by means of a computer-controlled tomographic scanner, in that a morphologic model (7) is made of this image on the basis of the information obtained via the scanner, in that a corresponding mould (9,10) is made on the basis of said model (7) and in that, finally, a relatively stiff foil (8) is provided in the mould (9,10) and put in the required shape with the help of the mould (9,10).
Inventors
- 👤 Vincent De Buck
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0003; A61C8/0004; A61C8/0006; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/2803; A61F2/2846; A61F2/30; A61F2/3094; A61F2/30942; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61C13/00; A61C13/0003; A61C13/0006; A61C13/0013; A61F2002/285; A61F2002/30948; A61F2002/30957; A61F2002/30962; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; B; B29; B29L; B29L2031/00; B29L2031/753; B29L2031/7532; G; G16; G16H; G16H20/00; G16H20/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
Method for manufacturing a membrane (11) for controlled bone regeneration at the height of a defect in the bone (1), characterized in that a digital image is made of the bone showing the defect for which an increase in volume is required by means of a computer-controlled tomographic scanner, in that a morphologic model (7) is made of this image on the basis of the information obtained via the scanner, in that a corresponding mould (9,10) is made on the basis of said model (7) and in that, finally, a relatively stiff foil (8) is provided in the mould (9,10) and put in the required shape with the help of the mould (9,10).
Claim 2
Dependent Claim
44 words
Method according to the above claim, characterized in that the defect is scanned and in that an image of the bone (1) for which a volume increase is required is made by processing the digital data obtained via said scanning in a digital manner.
Claim 3
Dependent Claim
39 words
Method according to the above claim, characterized in that in case of a unilateral defect, the intact area is scanned and the digital data of the intact area obtained via this scanning are digitally processed into a mirror image.
Claim 4
Dependent Claim
117 words
Method according to claim 1, characterized in that in those cases where the patient has a dental prothesis (3), the required increase in volume of the bone (1) is determined before the bone showing the defect is scanned, in that the prothesis (3) is excavated on the basal side until the surface (4) of the excavation coincides with the perimeter of the required increase in volume, in that said excavation surface is covered with a contrast medium such that the perimeter of the required increase in volume is made visible by the scanner, and in that the outline (6) of the contrast medium is digitally connected with the bone perimeter via digital processing of the scanner data.
Claim 5
Dependent Claim
27 words
Method according to the above claim, characterized in that the excavation of the prothesis (3) is filled again before it is scanned and put in place again.
Claim 6
Dependent Claim
34 words
Method according to any of the above claims, characterized in that the morphological model (7) for the manufacture of the mould (9,10), is made by means of rapid prototyping or free form manufacturing techniques.
Claim 7
Dependent Claim
22 words
Method according to claim 6, characterized in that the model (7) for the manufacture of the mould (9,10) is made by stereolithography.
Claim 8
Dependent Claim
22 words
Method according to claim 6, characterized in that the model (7) for the manufacture of the mould (9,10) is made by milling.
Claim 9
Dependent Claim
34 words
Method according to any of the above claims, characterized in that as a foil (8) for the membrane (11) a foil is used made of either of the following materials: titanium, polytetrafluoroethylene or polyurethane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.