4 results about "Structure bone" patented technology

The invention discloses a PEEK bone plate for closing cranium in microvascular decompression and application of the PEEK bone plate. The bone plate comprises a bone plate body which is in an oval shape, and the outline of the bone plate body is matched with the shape of a bone window formed in a sinus sigmoideus posterior approach microvascular decompression; the two faces of the bone plate body are of an asymmetric curved surface structure, the curvature radius of an outer plate face in the bone plate body is larger than that of an inner plate face in the bone plate body, the outer plate face is a gentle arc face, and the inner plate face is an arched face with a concave spherical face. The thickness of the bone plate body is gradually reduced from the periphery to the center; the bone plate body is used for being attached to a bone window formed by sinus sigmoideus posterior approach microvascular decompression. The wings extend outwards from the edge of the outer plate face of the bone plate body, and the at least two wings are in a thin plate shape and distributed in the circumferential direction of the bone plate body at intervals. A fixing structure used for containing a fixing piece is arranged on the wing, the wing is used for fixing the PEEK bone plate for cranial closure in the microvascular decompression surgery to the periphery of a bone window, and the bone plate fundamentally reduces operative complications and improves postoperative evaluation.

This invention discloses a locking bone plate, its preparation equipment, and a preparation method. The locking bone plate includes a bone plate body, a multi-directional micro-motion locking component, a gradient bioactive coating, a stress buffer structure, and a bone-inducing positioning component. The surface of the bone plate body has an anatomically conforming curved surface, with locking holes and micro-motion holes arranged alternately along its length, and a stress buffer structure in the middle. The multi-directional micro-motion locking component is assembled in the micro-motion holes, enabling multi-directional angle adjustment and axial micro-motion of the locking screws. The gradient bioactive coating fully covers the surface of the bone plate body and the walls of each hole, employing a three-layer structure. The bone-inducing positioning component is located on the bone side of the bone plate body that conforms to the bone, used to assist fracture reduction and induce bone cell growth. This invention achieves an organic combination of rigid fixation and multi-directional micro-motion, enhancing bioactivity and bone integration capabilities. It can adapt to complex fracture morphologies, reduce stress shielding, accelerate bone healing, and is safe to use and easy to assemble, possessing extremely high clinical application value.

The application discloses a kind of for thoracolumbar fracture front and rear road's minimally invasive bone cement device and use method, and the application belongs to medical equipment technical field, comprising: puncture guiding mechanism, bone cement mechanism, including passage dilator, the passage dilator is detachably installed with the sheet mechanism in, the bottom of sheet body is arc structure;Bone cement injection mechanism.The application solves the risk of bone cement leakage by setting bone cement bag, and then reduces the risk of bone cement leakage to the spinal canal or paravertebral tissue, so as to avoid nerve damage, pulmonary embolism and other serious complications.The specific shape can be formed in the fractured vertebral body by the setting of the sheet mechanism, the uniform distribution of bone cement in the vertebral body is ensured by introducing bone cement distribution control mechanism, the stability of fractured vertebral body is enhanced, and the treatment effect is improved.Meanwhile, the effective recovery of the height of severely compressed fractured vertebral body is realized, and the postoperative physiological curvature and function of the patient's spine are improved.

The invention provides a bullet type ankle joint tibia support assembly and an ankle joint prosthesis, and relates to the technical field of medical instruments. The tibia support assembly comprises a tibia support body, a keel, a connecting wall and a tibia liner locking structure. A first 3D printing porous structure is arranged on each of the bone joint top plane and the bone joint side surface; a second 3D printing porous structure is arranged on the surface of the keel for bone ingrowth; a plurality of inverted-cone-shaped bone grafting grooves are formed in the top of the keel; the front and rear ends of the connecting wall are of arrowhead structures, so that the tibia support can be conveniently driven in and taken out; the connecting wall is provided with a porous window, and the porous window is provided with a third 3D printing porous structure and penetrates through the thickness direction of the connecting wall for bone ingrowth; the tibia liner locking structure comprises a liner containing groove which is used for rapidly assembling the tibia liner. The mounting efficiency is improved; according to the scheme, the smoothness of inserting the tibia support prosthesis assembly into the tibia is improved, meanwhile, bone ingrowth can be fully achieved through the bone section of the prosthesis after installation, and long-term stability of the prosthesis and the bone is improved.