Living body-supporting member and preparation process thereof
First Claim
1. A process of preparing a living body supporting member, comprising:
- providing a plurality of green sheets of biologically inert ceramic material, each of the plurality of green sheets having a thickness between about 100 and 1000 microns,perforating each of the plurality of green sheets with a plurality of regularly spaced pores,laminating the plurality of green sheets so that the plurality of regularly spaced pores of each green sheet is displaced relative to the plurality of regularly spaced pores of at least one adjacent green sheet and the plurality of regularly spaced pores of each green sheet communicates with the plurality of regularly spaced pores of at least one adjacent green sheet, andfiring the laminated plurality of green sheets.
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Accused Products
Abstract
A living body-supporting member having a surface layer with multiple pores regularly arranged therein, in which the porous portions constituting the living body-supporting member are made of ceramics giving no harm to a human body. And a method to perforate multiple pores in a green sheet made of the ceramics, to laminate the green sheets so that pores communicate with each other, and to fire it. The living body-supporting member is coupled with the bone, and there is no risk that it may drop from the supporting portion. Even if the substrate is composed of ceramics, the substrate and the surface layer can be integrally coupled with each other, thereby there is no risk that both of them are separated. Furthermore, according to the above method, the pore shapes of the porous body can be preliminarily designed so that pores communicate with each other while being displaced for every certain depth, and it can be accurately controlled in the production thereof.
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Citations
13 Claims
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1. A process of preparing a living body supporting member, comprising:
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providing a plurality of green sheets of biologically inert ceramic material, each of the plurality of green sheets having a thickness between about 100 and 1000 microns, perforating each of the plurality of green sheets with a plurality of regularly spaced pores, laminating the plurality of green sheets so that the plurality of regularly spaced pores of each green sheet is displaced relative to the plurality of regularly spaced pores of at least one adjacent green sheet and the plurality of regularly spaced pores of each green sheet communicates with the plurality of regularly spaced pores of at least one adjacent green sheet, and firing the laminated plurality of green sheets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process of preparing a living body supporting member, comprising:
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providing a plurality of green sheets of biologically inert ceramic material, each of the plurality of green sheets having a thickness between about 100 and 1000 microns, perforating each of the plurality of green sheets with a plurality of regularly spaced slits, laminating the plurality of green sheets so that the plurality of regularly spaced slits of each green sheet is disposed transverse with respect to the plurality of regularly spaced slits of at least one adjacent green sheet and the plurality of regularly spaced slits of each green sheet communicates with the plurality of regularly spaced slits of at least one adjacent green sheet, and firing the laminated plurality of green sheets. - View Dependent Claims (11, 12, 13)
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Specification