2 results about "Skull repair" patented technology

The utility model relates to medical instrument technical field, specifically disclose a skull repair device of integrated cerebrospinal fluid shunt, including artificial bone plate, be used for repairing skull defect, the outer surface of artificial bone plate is equipped with positioning recess, the positioning recess is used for accommodating cerebrospinal fluid shunt, and the positioning recess is equipped with the fixing assembly for fixing shunt. The utility model embeds the main part of cerebrospinal fluid shunt into artificial bone plate, makes shunt main part can accommodate in the thickness range of repair device itself, thereby significantly reduced the overall profile height of implant, effectively reduced the pressure and tension generated to scalp, can prevent the scalp erosion, breakage, necrosis and other serious complications caused by implant profile too high, simultaneously, through the fixing assembly to the shunt fixation, can effectively prevent the shunt from turning over or displacement after operation, guarantee the long-term stability and safety of drainage system, and simplify the operation.

A high-purity magnesium skull repair mesh and its preparation method are disclosed, belonging to the field of biomedical materials. The repair mesh is made of high-purity magnesium with a purity of 99.95 wt%, and its surface roughness R... a,表面 The roughness R inside the pore is controlled within the range of 0.5~0.6 μm. a,孔 ≤ 0.8 μm. By precisely controlling the surface and internal roughness, a degradation rate of ≤0.2 mm / year was achieved for the repair mesh, a modulus ≥18 GPa after 12 weeks of implantation, and spontaneous disappearance of the degradation air bladder within 12 weeks, with a significant bone-promoting effect. The preparation method includes electrical discharge drilling, internal polishing, diamond wire slicing, and surface polishing. This invention solves the problems of excessively rapid degradation, poor morphological retention, and rapid decline in mechanical properties of existing magnesium-based cranial repair meshes, and is suitable for repairing bone defects in the skull, jawbone, radius, femur, and other bones requiring long-term mechanical support.