METHODS FOR MANUFACTURING IMPLANTS HAVING INTEGRATION SURFACES

摘要

A method of producing an interbody spinal implant. The method includes the steps of obtaining a blank having a top surface, bottom surface, opposing lateral sides, and opposing anterior and posterior portions, and applying a subtractive process (e.g., masked acid etching) to the top surface, the bottom surface, or both surfaces of the blank to form a roughened surface topography. Subsequently, the blank is machined to fonn the interbody spinal implant, which includes 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 where the top surface, the bottom surface, or both surfaces of the interbody spinal implant have the roughened surface topography produced by the subtractive process. This simplified method produces more accurate and repeatable implants with fewer process steps and defects, reducing process time and costs.

主权项

1. A method of producing an interbody spinal implant, the method comprising:
obtaining a blank having a top surface, a bottom surface, opposing lateral sides, and opposing anterior and posterior portions; applying a subtractive process to at least a portion of at least one of the top surface and the bottom surface of the blank to form a roughened surface topography; and subsequently, machining the blank to form an interbody spinal implant including 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 (a) extending from the top surface to the bottom surface of the body, (b) having a size and shape predetermined to maximize the surface area of the top surface and the bottom surface available proximate the anterior and posterior portions while maximizing both radiographic visualization and access to the substantially hollow center, and (c) defining a transverse rim, wherein at least one of the top surface and the bottom surface of the interbody spinal implant has the roughened surface topography.