Implants with integration surfaces having regular repeating surface patterns

An interbody spinal implant comprising:

• a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and a single vertical aperture;
• and
• optionally, at least one of a first integration plate affixed to the top surface of the body and a second integration plate affixed to the bottom surface of the body, wherein the first integration plate and the second integration plate each have a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, and a single vertical aperture extending from the top surface to the bottom surface and aligning with the single vertical aperture of the body;
• wherein at least a portion of at least one of the top surface of the body, the bottom surface of the body, the top surface of the first integration plate, and the top surface of the second integration plate defines at least one integration surface having a roughened surface topography including a repeating pattern in an organized arrangement, without sharp teeth that risk damage to bone structures, adapted to grip bone through friction generated when the implant is placed between two vertebral endplates and to inhibit migration of the implant;
• and
• wherein (a) the repeating pattern is formed of at least three at least partially overlapping repeating patterns including a first repeating pattern arranged in a first array of columns and rows oriented along an x-axis and a y-axis, a second repeating pattern arranged in a second array of columns and rows oriented along the x-axis and y-axis, and a third repeating pattern arranged in a third array of columns and rows oriented along the x-axis and y-axis;
• (b) the three repeating patterns comprise recesses having a slope of 30° or less relative to the integration surface, (c) the first repeating pattern has a greatest depth and a spacing S1, the second repeating pattern has an intermediate depth and a spacing S2, and the third repeating pattern has a smallest depth and a spacing S3 with the spacing S1<spacing S3<spacing S2, and (d) the repeating pattern entirely surrounds the single vertical aperture.

An interbody spinal implant comprising:

• a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and a single vertical aperture;
• wherein the top surface and the bottom surface of the body each define an integration surface having a roughened surface topography including a repeating pattern in an organized arrangement, without sharp features that risk damage to bone structures, adapted to grip bone through friction generated when the implant is placed between two vertebral endplates and to inhibit migration of the implant;
• and
• wherein (a) the repeating pattern is formed of at least three at least partially overlapping repeating patterns including a first repeating pattern arranged in a first array of columns and rows oriented along an x-axis and a y-axis, a second repeating pattern arranged in a second array of columns and rows oriented along the x-axis and y-axis, and a third repeating pattern arranged in a third array of columns and rows oriented along the x-axis and y-axis;
• (b) the repeating pattern entirely surrounds the single vertical aperture;
• (c) the three repeating patterns each comprise recesses having a slope of 30° or less relative to the integration surface;
• (d) the first repeating pattern has a greatest depth and a spacing S1 along the x-axis and y-axis, the second repeating pattern has an intermediate depth and a spacing S2 along the x-axis and y-axis, and the third repeating pattern has a smallest depth and a spacing S3 along the x-axis and y-axis with the spacing S1<spacing S3<spacing S2;
• and (e) the second and third repeating patterns radiate at a fixed distance along the x-axis, y-axis, or both from at least one point defined by the first repeating pattern.