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Substrate with a Structured Surface and Methods for the Production Thereof, and Methods for Determining the Wetting Properties Thereof

a technology of structured surfaces and substrates, applied in the direction of instruments, prostheses, manufacturing tools, etc., can solve the problems of adversely affecting the ingrowth behaviour

Inactive Publication Date: 2018-10-18
NOBEL BIOCARE SERVICES AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The method results in implants with improved surface properties, increased surface area, and enhanced biocompatibility, allowing for better integration and storage stability without loss of wettability, even at high salt concentrations, and reduces the risk of implant loosening and tissue reactions.

Problems solved by technology

A disadvantage of rough surfaces is the problem of removal in the event of implant revisions.
What is common in particular to the previously produced implants is that the outwardly facing surfaces of the object generally have irregular structures which adversely affect the ingrowth behaviour in particular for use of the objects as implants, and do not positively influence same.

Method used

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  • Substrate with a Structured Surface and Methods for the Production Thereof, and Methods for Determining the Wetting Properties Thereof
  • Substrate with a Structured Surface and Methods for the Production Thereof, and Methods for Determining the Wetting Properties Thereof
  • Substrate with a Structured Surface and Methods for the Production Thereof, and Methods for Determining the Wetting Properties Thereof

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Embodiment Construction

[0029]More precisely the present invention in an embodiment concerns a method for the production of a substrate with a regularly microstructured surface with protrusions and depressions, wherein the spacing between the protrusions as a statistical mean is in the range of 1.0 to 100 μm and the profile height of the protrusions and depressions as the statistical mean (Ra-value) is in the range of 1 to 80 μm, which comprises the steps:[0030]a) providing a powder or a powder mixture of a sinterable material powder on a blank;[0031]b) applying a layer of the metal powder to the surface of the blank; and[0032]c) acting on the layer of the material powder with energy-rich radiation in a pattern which can be represented from a periodic function converted into an STL data set so that material powder is sintered on at least a partial region of the surface of the blank with the formation of at least a partial region of the pattern.

[0033]In the method the blank can be produced from solid materi...

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Abstract

An implant includes a microstructured hyperhydrophilic surface with protrusions and depressions in which a spacing between the protrusions as a statistical mean is in a range of 1 to 100 μm and a profile height of the protrusions and depressions as a statistical mean is in the range of 1 to 80 μm.

Description

[0001]This U.S. patent application is a Divisional of U.S. Ser. No. 14 / 364,312 filed on 11 Jun. 2014, which is a national stage application of PCT / DE2012 / 100382 filed on 16 Dec. 2012 and claims priority of German patent document DE 10 2011 056 549.3 filed on 16 Dec. 2011, the entireties of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The invention concerns a substrate with a structured surface and methods for the production of the substrate with a structured surface and also methods for determining the wetting properties of that substrate. The method according to the invention can be used to produce in particular substrates with user-specific fixed surface properties—implants are named by way of example—. Thus implants like for example dental implants or endoprotheses which are distinguished by particularly good ingrowth at the implantation location in the jaw or extremity bones can thus be produced with the method according to the invention.[0003]In r...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/28C23C4/18G01N13/02A61L17/14A61L27/04C23C4/08B23K26/00C23C4/134A61L27/50
CPCA61L2400/18C23C4/134A61F2002/2835A61F2310/00011A61L17/145A61L27/04B23K26/352C23C4/08C23C4/18G01N13/02A61F2/28G01N2013/0283A61L27/50G01N2013/0291
Inventor JENNISSEN, HERBERT
Owner NOBEL BIOCARE SERVICES AG