Biological tissue rootage face, implant, method for forming biological tissue rootage face, and method for producing implant
AssigneeNantoh. Co., Ltd
InventorTeruo Ishiwata
Life of this patent
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Abstract
A biological tissue rootage face (30) capable of closely bonding to a biological tissue (H, S) is composed of a biocompatible material and has numerous fingertip-shaped microvilli (41). The microvilli (41) have tip diameters in the order of nanometers. An implant (1) has the biological tissue rootage face (30) on a surface (11, 24) configured to root into a biological tissue (H, S). In a method for forming the biological tissue rootage face (30), a surface of a biocompatible material is subjected to laser nonthermal processing carried out by emitting a laser beam in air, to form numerous fingertip-shaped microvilli (41). The laser beam is a laser beam of an ultrashort pulse laser.
Claims12
A method for forming a biological tissue rootage face capable of rooting into a biological tissue, comprising
- a first step of forming a large groove on a surface;
- and
- a second step of forming a small groove on an inner surface of the large groove and simultaneously forming a rough surface on an inner surface of the small groove, the rough surface having numerous fingertip-shaped microvilli;
- wherein the large groove is formed by molding, machining or laser thermal processing and the small groove and the rough surface are formed by laser nonthermal processing;
- wherein each of the fingertip-shaped microvilli has a tip diameter of less than 1000 nanometers.
A method for forming a biological tissue rootage face capable of rooting into a biological tissue, comprising:
- a step of subjecting a surface of a biocompatible material to a laser nonthermal process to form a groove and simultaneously forming a rough surface having numerous fingertip-shaped microvilli on an inner surface of the groove;
- wherein each of the fingertip-shaped microvilli has a tip diameter of less than 1000 nanometers.
A method for forming a biological tissue rootage face capable of rooting into a biological tissue by subjecting a surface of a biocompatible material to laser nonthermal processing carried out by emitting a laser beam in air, comprising:
- a first step of forming a large groove on the surface;
- and
- a second step of forming a small groove on an inner surface of the large groove and simultaneously forming a rough surface on an inner surface of the small groove, the rough surface having numerous fingertip-shaped microvilli;
- wherein each of the fingertip-shaped microvilli has a tip diameter of less than 1000 nanometers.
Dependencies are inferred from the claim text.