11 results about "Prosthesis use" patented technology

Proposed is a dental composition. The dental composition includes 20 to 40 wt of dispersed phase zirconia solid solution and 60 to 80 wt of matrix phase zirconia solid solution.

The object of the present invention is to provide a method for generating prosthetic devices using three-dimensional scan data. [Solution] A method for generating a prosthesis using 3D scan data includes the steps of: receiving encrypted oral data; receiving model information of an artificial intelligence neural network; determining metadata of the encrypted oral data; determining a calculated predicted value based on the model information and the metadata; and determining the size of a sub-calculation unit based on the calculated predicted value. The size of the sub-calculation unit is controlled based on the calculated predicted value.

The application discloses a multiple controlled-release drug-loaded coating modified anti-heterotopic ossification artificial temporomandibular joint prosthesis and a preparation method thereof, and comprises the following steps: surface treatment of a biomimetic artificial temporomandibular joint prosthesis; dopamine assisted co-deposition is adopted to sequentially form a DF-HA self-assembled nanosphere coating and a meloxicam liposome drug-loaded coating on the surface of the biomimetic artificial temporomandibular joint porous titanium prosthesis; and RGD is grafted on the surface of the meloxicam liposome drug-loaded coating by chemical natural deposition, and the anti-heterotopic ossification artificial temporomandibular joint prosthesis is obtained. The artificial temporomandibular joint prosthesis is modified by active drug-loaded meloxicam liposomes on one hand, and the artificial temporomandibular joint prosthesis is modified by RGD-DF-HA layered drug loading on the other hand, long-term slow release and programmed release of drugs are realized, anti-inflammatory effects are achieved, the purpose of treating and preventing heterotopic ossification after artificial joint replacement is achieved, long-term stability of artificial joint replacement is beneficial, early prevention, intervention, service life of the artificial joint prosthesis is improved, and the life quality of patients is improved.

This invention provides a prosthesis with an identification marking section containing various information, which is superior to conventional designs in terms of hygiene, safety, visibility, adhesion, and comfort, as well as a method and system for verifying the user and the prosthesis using the same. [Solution] A prosthesis with an information display section, characterized by having a component made of metal (gold, silver, palladium, or an alloy containing these) or resin (polyamide resin, polyester resin, polycarbonate resin, polypropylene resin, or acrylic resin, etc.), and including an information display section engraved on the surface of the component, as well as a verification method and system utilizing the same.

The invention relates to an improved method for manufacturing a prosthesis (1') from a positive mould (110), for fitting to a residual limb of an amputee. The method comprises 3D modelling of the inner surface of an existing socket (2) comprising a 3D model (44) of the surface in a spatial reference system (10) and automatic modification of the 3D model (44) in order to optimize the arrangement of an artificial limb (3) in the socket (2') to be manufactured. The method further comprises determining a position of a fastener (116) in the spatial reference system (10) with the aid of a guide (112) for placement of the fastener (116). The invention also relates to a manufacturing aid assembly (100) configured to aid in the manufacture of a socket according to the method of the invention and comprising a positive mould (110) and the placement guide (112).

This invention relates to the field of veterinary medical device technology, and more particularly to a high-performance orthopedic implant for veterinary use and its preparation method. The method includes: preparing a solid external structure using additive manufacturing technology with a matrix material, and preparing a three-dimensional porous structure for the bone contact area on the solid external structure; preparing a micromaterial layer on the three-dimensional porous structure for the bone contact area using PVD technology, thereby obtaining the high-performance orthopedic implant for veterinary use. The preparation method of this invention combines additive manufacturing with technologies such as spraying, PVD, and laser sintering, employing cold spraying combined with laser sintering to overcome the non-metallurgical bonding defects of pure cold spray coatings, improving bonding strength and implant lifespan. The prepared implant possesses high mechanical strength, precise three-dimensional porosity, suitable elastic modulus, and good biocompatibility and osteoinductive properties. Through the synergistic effect achieved by the microporous structure and multi-material composite, excellent bone ingrowth can still be achieved even in cases of bone cell infarction.

The application discloses a prosthesis capable of fixing a proximal femur in hip joint revision surgery and relates to the technical field of medical devices.The prosthesis comprises a femoral stem body and a dynamic auxiliary structure.The dynamic auxiliary structure comprises a side groove, a counterweight and a limiting seat.The side groove is provided through the wide side of the femoral stem body.The two side ports of the side groove are provided with elastic plates, and the side groove is provided with a guide rod.The counterweight is movably sleeved on the guide rod.A traction spring is arranged between the top of the counterweight and the end of the side groove.The two sides of the counterweight are embedded with protrusions.The limiting seat is arranged on the inner wall of the side groove and located on the two sides of the counterweight.A guide column is slidably arranged through the limiting seat, and the end of the guide column close to the counterweight is provided with a transmission seat corresponding to the protrusions.The prosthesis can reduce the micromotion of the prosthesis and the femoral medullary cavity, promote bone ingrowth, reduce the incidence of long-term loosening, activate osteoblast activity, inhibit osteoclast proliferation, maintain the bone mass around the prosthesis, and prolong the service life of the prosthesis.

This application provides a self-adaptive trabecular bone knee joint prosthesis and its design and fabrication method. The electronic device acquires a bone-cut model of the knee joint and a prosthesis model that adapts to the osteotomy surface of the bone-cut model; assembles the bone-cut model and the current prosthesis model into an assembly; performs mechanical simulation using the assembly to obtain the stress and strain distribution at the contact surface between the prosthesis model and the bone-cut model; if the strain distribution does not meet the ideal strain range requirement, the structure of the contact interface is adjusted according to the strain distribution to obtain a new prosthesis model; this process continues until the strain distribution at the contact interface meets the ideal strain range requirement. Thus, instead of relying on experience or a uniform template, a fitting scheme is dynamically generated based on each patient's actual anatomy and mechanical response, thereby solving the current problem of not being able to adapt to individual patient differences, improving the long-term bonding stability of the prosthesis and bone, and extending the prosthesis's lifespan.

The invention discloses a digital design and manufacturing method and system for a knee joint tibial prosthesis, and the method comprises the steps: collecting the stress distribution and motion trail of a knee joint in different motion states according to the gait analysis data and dynamic mechanical sensor data of a patient, and obtaining a dynamic mechanical feature set of the knee joint; inputting the dynamic mechanical feature set into a geometric design model based on a generative adversarial network, generating an initial tibial prosthesis geometric shape, and obtaining a preliminarily optimized tibial prosthesis geometric model; according to the tibial prosthesis geometric model, designing an internal porous structure of the prosthesis by using a material microstructure optimization algorithm based on deep reinforcement learning to obtain a material and tibial prosthesis design scheme; and inputting the tibial prosthesis design scheme into multi-axis additive manufacturing equipment to obtain a final knee joint tibial prosthesis. By utilizing the embodiment of the invention, the precision and consistency of prosthesis manufacturing can be ensured, and the overall quality of the prosthesis is further improved.

The invention relates to an improved method for manufacturing a prosthesis (1') from a positive mold (110) for fitting a residual limb of an amputee. The method comprises 3D modeling of the inner surface of an existing socket (2), including a 3D model (44) of said surface in a spatial reference frame (10), and automatic modification of said 3D model (44) to optimize the arrangement of an artificial limb (3) within the socket (2') to be manufactured. The method further comprises determining the position of a fastener (116) in said spatial reference frame (10) using a positioning guide (112) for the fastener (116). The invention also relates to a manufacturing aid assembly (100) configured to operate a manufacturing aid for a socket according to the process of the invention and comprising a positive mold (110) and the placement guide (112). Fig. 9

The present invention relates to a method for manufacturing a prosthesis for a dental implant using a digital library including three-dimensional shape information of a prefabricated abutment with respect to prefabricated abutments having a plurality of specifications, according to an embodiment of the present invention, when designing the digital library including the three-dimensional shape information of the prefabricated abutment, the digital library including the three-dimensional shape information of the prefabricated abutment, and the digital library including the three-dimensional shape information of the prefabricated abutment. The present invention relates to a method for manufacturing prostheses by a dental technician, said method comprising the steps of: providing a prefabricated abutment comprising a root pile forming a cutting surface and / or a cutting groove on the outer circumference, disseminating the cutting surface and / or the cutting groove, and designing a digital library comprising three-dimensional profile information of the abutment, whereby the dental technician can manufacture the prostheses even if errors occur in the process of manufacturing the prostheses by the dental technician. Early contact between the cutting surface and / or the periphery of the cutting groove between the prosthesis and the root pile of the abutment can also be prevented.