an orthopedic implant
An orthopedic implant and implant body technology, applied in the field of orthopedic implants, can solve problems such as implant loosening, and achieve the effects of promoting interface osteogenesis, enhancing interface fusion, and firmly riveting
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Embodiment 1
[0026] The orthopedic implant described in this embodiment is an internal fixation screw made of metal, such as Figure 1-2 As shown, the orthopedic implant includes an internal fixation screw body 1, and the body is provided with an external thread 2 for connecting bone tissue. The outer surface of the main body is a regular rough surface 3 , and the rough surface 3 is composed of a plurality of diamond-shaped holes 6 . The rhombus hole 6 includes a rhombus bottom surface 61 and four inclined side surfaces 62 , the orifice 63 of the rhombus hole 6 is also a rhombus shape, and the orifice 63 is larger than the rhombus bottom surface 61 .
[0027] In this embodiment, the diamond-shaped hole 6 is formed by interweaving the first corrugated surface 4 and the second corrugated surface 5 on the same plane, and the first corrugated surface 4 and the second corrugated surface 5 have the same structure and are interwoven. The included angle α is 30°. Take the first corrugated surfac...
Embodiment 2
[0035] The orthopedic implant described in this embodiment is an artificial joint made of hydroxyapatite, such as Figure 8 As shown, the orthopedic implant includes an artificial joint body 7, and the artificial joint body 7 is partially provided with a regular rough surface 3 as described in Embodiment 1. The rough surface 3 is composed of a plurality of rhombic holes 6 . The rhombus hole 6 includes a rhombus bottom surface 61 and four inclined side surfaces 62 , the orifice 63 of the rhombus hole 6 is also a rhombus shape, and the orifice 63 is larger than the rhombus bottom surface 61 . In this embodiment, the diamond-shaped hole 6 is formed by interweaving the first corrugated surface 4 and the second corrugated surface 5 on the same plane, and the first corrugated surface 4 and the second corrugated surface 5 have the same structure and are interwoven. The included angle α is 15°. The included angles θ between the third surface 43 of the first corrugated surface 4 and ...
Embodiment 3-6
[0037] All or part of the surface of the orthopedic implant described in Examples 3-6 is provided with a rough surface 3 as described in Example 1, and a plurality of diamond-shaped holes 6 are distributed on the rough surface 3 . Orthopedic implants can be made of inorganic materials such as hydroxyapatite, synthetic materials such as polylactic acid, or metals. Concrete parameters of the first corrugated surface 4 and the second corrugated surface 5 forming the diamond-shaped hole 6 are shown in Table 1 below: Table 1: Each parameter table of embodiment 3-embodiment 6
[0038] Example 3 Example 4 Example 5 Example 6 Orthopedic Implants internal fixation plate spinal fusion cage cage artificial vertebral body material Metal Hydroxyapatite or polylactic acid Metal Weaving angle α 20° 40° 30° 45° Angle θ 120° 150° 140° 130° W 1
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Abstract
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