6 results about "Abutment Screw" patented technology

The invention relates to the field of medical instruments, and provides a conicity-locked osseointegration prosthesis. The osseointegration prosthesis comprises an implantation prosthesis, a percutaneous device and an abutment screw, a plurality of fixing ridges are arranged on the periphery of the implantation prosthesis, intraosseous fixation is achieved in a press-fit mode, a taper locking structure is combined to prevent the implantation prosthesis from sinking, and it is ensured that the position of the implantation prosthesis is fixed after implantation; a flushing hole communicated with the internal flushing cavity is further formed in the periphery of the implant prosthesis, and the implant prosthesis can be used for injecting medicine into the medullary cavity, implanting bone materials and the like or used for follow-up flushing treatment for intramedullary infection possibly occurring in the later period. The percutaneous device and the implanted prosthesis are connected through the anti-rotation structure and the taper locking structure, the percutaneous section has the surface state formed through surface treatment, stimulation to surrounding soft tissue is reduced, the anti-infection capacity is improved, and the percutaneous sealing effect is improved. By optimizing the implantation structure and the percutaneous interface design, the intraoperative operation difficulty is reduced, the intraoperative time is shortened, meanwhile, the percutaneous stoma is reduced, and the infection risk is reduced.

For the purpose of increased flexibility and ease of use of a dental screwdriver (1) designed to connect an abutment screw (55) of a suprastructure abutment to a dental implant, and which has a shaft (15) having a proximal end (10) with a handle (5) and a distal end (20), the shaft (15) is designed to be flexible. A method for manufacturing a dental screwdriver (1) provides that its shank (15) is thermally and / or mechanically treated, and / or that its shank (15) is provided with at least one taper (30, 35), and / or that at least one section of the shank (15) located away from the proximal end (10) and / or the distal end (20) is subjected to mechanical treatment such that the strength of the section is greater than the strength of the shank (15) in the region of the proximal end (10) and / or the distal end (20).

An oral cavity bone column retention screw comprises a fixing part for increasing the contact area with the bone column to fix it, and a screw body for fixing to the bone structure inside the oral cavity. The fixing part is connected to the top end of the screw body; the surface of the screw body is provided with self-tapping threads; the screw body is connected to the edge of the fixing part. The screw body is provided with a screw head and a threaded rod, the screw head being integrally connected to the top end of the threaded rod; the fixing part is fixedly connected to the top end of the threaded rod; the fixed connection is fused or welded; the screw head is fixedly embedded in the upper surface of the fixing part. This oral cavity bone column retention screw can increase the locking area with the bone column, disperse the stress on the bone column, avoid secondary damage to the bone column during operation, and can also adapt to complex bone surface morphologies.

The invention relates to a device for the cortical fixation of a dental implant, which can increase primary stability and allows a freely selectable rotational position of the superstructure independent of the longitudinal rotation of the implant. The assembly consists of a coronal part 1, which can be firmly connected to a superstructure, for example, an osteosynthesis plate 3 and / or a dental crown 10, and an apical part 2, which forms the implant connection and can be connected to the coronal part 1 via a conical connection 4. An abutment screw 6 is rotatably and positively retained in the coronal part 1, extends through the apical part 2, and can be screwed into the implant 9 via a thread.This allows rotation of the coronal part 1 and thus precise positioning of the osteosynthesis plate 3 on the jawbone 8 until the abutment screw 6 is tightened, generating an apically directed force and enabling a form-fit and force-fit fixation in the area of ​​the conical connection 4. The osteosynthesis plate 3 can then be fixed to the jawbone 8 to improve primary stability during the healing phase of immediately loaded implants.

The invention relates to a device for the cortical fixation of a dental implant, which can increase primary stability and allows a freely selectable rotational position of the superstructure independent of the longitudinal rotation of the implant. The assembly consists of a coronal part 1, which can be firmly connected to a superstructure, for example, an osteosynthesis plate 3 and / or a dental crown 10, and an apical part 2, which forms the implant connection and can be connected to the coronal part 1 via a conical connection 4. An abutment screw 6 is rotatably and positively retained in the coronal part 1, extends through the apical part 2, and can be screwed into the implant 9 via a thread.This allows rotation of the coronal part 1 and thus precise positioning of the osteosynthesis plate 3 on the jawbone 8 until the abutment screw 6 is tightened, generating an apically directed force and enabling a form-fit and force-fit fixation in the area of ​​the conical connection 4. The osteosynthesis plate 3 can then be fixed to the jawbone 8 to improve primary stability during the healing phase of immediately loaded implants.

The utility model provides a cavity for a titanium sponge crusher, which comprises a frame body, a crushing shaft is arranged in the frame body, and a feeding frame is fixedly mounted at the top of the frame body; the mounting assembly is arranged on one side of the frame body, the mounting assembly comprises a fixing plate, and the fixing plate is arranged on one side of the frame body. According to the cavity for the titanium sponge crusher, through mutual cooperation of the mounting assembly, the moving assembly, the fixed cutter and other structures, when the fixed cutter is disassembled and replaced, only the abutting screw needs to be rotated, so that one end of the abutting screw is far away from the fixed plate, and the fixed cutter can be disassembled and replaced; and then the fixing plate is moved towards the side away from the frame body, so that the fixed cutter is moved out of the inner side face of the frame body, then the bottom of the locking screw is in threaded connection with the interior of the top of the fixing base, the fixed cutter can be moved out of the inner side face of the mounting groove, the fixed cutter is detached and replaced, and operation is convenient and fast.