45 results about "Stationary model" patented technology

The invention relates to novel bridge equipment. The novel bridge equipment comprises a bottom plate, a fixed model rack, a sliding model rack and a pouring head. Supporting legs are arranged at four corners of the bottom of the bottom plate correspondingly, the supporting legs are fixedly connected to the bottom plate and are obliquely arranged outward in a stretching manner, two left square guide slots and two right square guide slots are formed in the left side and the right side of the sliding model rack correspondingly, left guide bars and right guide bars are slidably mounted in the two left square guide slots and the right square guide slots, correspondingly, a left fixed connecting arm and a right fixed connecting arm are fixedly and symmetrically arranged on the left and right sides of the lower end of the sliding model rack, combined arms are fixedly arranged on the lower ends of the left fixed connecting arm and the right fixed connecting arm, a connecting groove is formed in the central point of the upper end of the fixed model rack, the pouring head is mounted in the connecting groove, and a model cavity is formed in the fixed model rack. The novel bridge equipment provided by the invention is simple in structure, stable to operate and reasonable in design.

The present invention discloses a dentition model generation method based on oral cavity scanning data and CBCT (Cone Beam Computed Tomography) data. The method comprises: reading a three-dimensional multi-source data model of an oral cavity; setting and registering a fixed model and a floating model, wherein the fixed model is a triangular mesh model created by means of CBCT, and the floating model is a triangular mesh model of intraoral scanning; manually picking up feature point pairs of the models on the fixed model and the floating model, correcting the feature point pairs according to point cloud curvature of the models, moving feature points to a point with the largest curvature in a surrounding neighborhood, and performing preliminary registration on the feature point pairs by using a point-to-point ICP (Iterative Closest Point) algorithm; calculating a point cloud error of the models after preliminary registration, and by combination with medical parameter requirements, setting a parameter of precise registration; performing precise registration by using an optimized point-to-surface ICP algorithm; and fusing the CBCT data and intraoral scanning data after registration, and outputting tooth root and crown models after registration and fusion. Rapid and precise registration and fusion of data of different devices or data of different postures of patients are implemented.

The invention relates to a system and method for expanding the model driving development capability by applying a plug-in. In the system and the method, a'model and plug-in' combined mode is provided to describe and establish a software system, firstly a model designing tool is used for establishing basic model description of the software system and then establishing a plurality of reusable plug-pin model for further describing a basic model object, the plug-in model can be expanded randomly on various basic model objects, and the plug-in can complete a software function with any complexity, therefore, the expansion of the model driving development capability is realized. By utilizing the invention, the technical problems of the existing model driving development method that because a fixed model is adopted, the describing capability of complex service system is poor, and the software system with the model driving development can not be established, expanded and maintained visually and dynamically under the operating state and the like are solved. The system developed by using the method has the advantages that the development complexity degree is low, the development speed is fast, the reusable degree of technology is high, the expansion is flexible, the maintenance is convenient and the reliability is high.