6 results about "Endosseous implants" patented technology

The utility model discloses an oral implant which comprises a bone surface supporting structure, the appearance of the bone surface supporting structure is attached to an upper jaw alveolar bone surface or a lower jaw alveolar bone surface, and a net-shaped through hole is formed in the bone surface supporting structure and corresponds to the alveolar bone surface; a plurality of base tables protruding out of the surface are arranged on the surface of one side of the bone surface supporting structure, and the base tables are used for fixedly connecting the oral implant with a prosthesis; one end, connected to the bone surface supporting structure, of the abutment is provided with an intraosseous implant implanted into the jaw bone. According to the utility model, the traditional subperiosteal implant is improved, the subperiosteal implant is designed in the area with insufficient bone mass of the jaw bone, and the novel stent-shaped implant is formed by combining the subperiosteal implant with the intraosseous implant in the area with sufficient bone mass of the jaw bone, so that independent bone increment operation is not needed, and the implant can be implanted only by one operation; and the clinical problem that a patient with serious atrophy of the alveolar ridge is difficult to implant and repair is effectively solved.

The present invention relates to a process for the preparation of an osseointegrative topography on a surface of a body made of titanium or a titanium alloy, the body being an endosseous implant or a part of an endosseous implant system. The process comprises the subsequent steps of a) etching the surface of the body with an etching solution comprising a mineral acid, whereby a microscopic topographical formation is provided, b) placing the body obtained in step a) into a packaging container, and c) treating the body placed inside the packaging container with an aqueous saline maturation solution comprising an oxidative agent, whereby sub-microscopic particulate structures are formed on the microscopic topographical formation, said sub-microscopic particulate structures extending in at least two dimensions to 1 μm at most. The process of the invention is characterized in that the maturation solution used in step c) is a solution of an oxidative agent selected from the group consisting of hydrogen peroxide, sodium nitrate and potassium nitrate as well as mixtures thereof, the concentration of the oxidative agent in the maturation solution being in a range of higher than 0.01 wt.-% and less than 1 wt.-% referred to the total weight of the maturation solution, and that the treatment of step c) is carried out at a temperature of above 40°C.

A system for providing fixation of first and second bones includes a drill guide that receives a drill bit to create first and second holes in the first and second bones, respectively. Guide pins can be driven into the first and second holes. The guide pins are received by a surgical saw to guide the surgical saw toward a joint between the first and second bones, thereby creating a third hole in each of the bones across the joint. The guide pins are then removed, and an implant can be inserted into the bones, such that a first leg of the implant is disposed in the first hole, a second leg of the implant is disposed in the second hole, and a keel of the implant is disposed in the third hole.

The application discloses a programmable drug release anti-infection and bone formation promoting multifunctional orthopedic internal implant device and a preparation method thereof. The implant is prepared according to the following steps: 1) introducing a titanium nanotube (TNT) structure on the surface of a titanium alloy base by using an anodic oxidation method; 2) sequentially loading an anti-infection component, a bone formation promoting factor and a blood vessel formation promoting factor into the TNT tube by using a vacuum sequential loading process; and 3) finally, coating a poly-tannic acid (PTA) coating on the surface of the material base by using a tannic acid (TA) in-situ self-polymerization technology. The multifunctional bone implant device can sequentially release the anti-infection drug, the blood vessel formation promoting factor and the bone formation promoting factor in the order of the vacuum drug loading, and the modified surface of the device has good drug release and oxidation resistance, so that the bone infection can be efficiently prevented and treated, and the bone repair efficiency is improved.

The invention discloses a guide type full-length intraroot hard tissue induction column. The guiding type full-length root hard tissue induction column comprises an upper part and a lower root hard tissue induction part. The upper portion is configured for gripping transport. A lower intraroot hard tissue inducing portion is attached to the upper portion. And a lower intra-root hard tissue inducing portion configured to induce complete and controlled hard tissue formation within the root canal, the lower intra-root hard tissue inducing portion comprising a reinforcing layer and a primary bioactive layer disposed outside the primary core wherein the primary bioactive layer is configured to induce hard tissue formation within the root canal. The guiding type full-length intraroot hard tissue induction column can induce hard tissue formation in a root canal in a controlled and guiding mode, and aims at achieving complete closing of a root canal cavity. This method simplifies the endodontic treatment procedure by reducing the number of steps involved, thereby improving procedure efficiency and possibly minimizing patient discomfort.

The invention discloses a preparation method of a high-toughness and high-corrosion-resistance magnesium alloy bar for an intraosseous implant. The preparation method comprises the following steps: S1, performing eccentric extrusion on a magnesium alloy blank to obtain an extruded bar; s2, the bar is subjected to single-pass high-temperature drawing, and a drawn bar is obtained; and S3, the drawn bar is subjected to aging treatment, and the aluminum alloy bar is obtained. According to the method, the technology of combining eccentric extrusion and single-pass near-phase transition temperature drawing is adopted for tissue regulation and control, high grain refinement, high-density second-phase dispersed distribution and formation of a weak (near) basal texture are achieved, and the problems that in the prior art, magnesium alloy is limited to be used as an intraosseous implant, namely, the toughness coordination capacity is low, the corrosion resistance is poor, and the service life of the magnesium alloy is prolonged are solved. And the magnesium alloy bar for the degradable intraosseous implant, which has high toughness and high corrosion resistance, is prepared.