Just Medical Devices (tianjin) Co., Ltd.

Tianjin Architecture Design Institute

Yu Cao

Xin Li

Hongxiu Zhou

Lu Liu

Cheng Zhang

Qian Tong

Li Li

Longjian Li

Jia Feng

Xun Yang

Min Xing

Jingkang Zhang

Yuejing Zhang

Xiaolei Ji

Wanmei Lu

Jianyu Li

Haoyang Yin

You Yang

The present disclosure discloses a zonal trabecular uni-compartmental femoral condylar component containing zirconium-niobium alloy on oxidation layer and preparation method, including following steps: using zirconium niobium alloy powder as raw material, conducting a 3D printing for one-piece molding to obtain an intermediate product of the uni-compartmental femoral condylar component, performing hot isostatic pressing and cryogenic oxidation to obtain the uni-compartmental femoral condylar component; the uni-compartmental femoral condylar component includes an articular surface and an osseointegration surface, a bone trabeculae is arranged on the osseointegration surface. The present invention can reduce the fretting wear of the interface between the prosthesis and the bone, and reduce the stress shielding effect of the prosthesis on the bone tissue, homogenize the stress of the femoral condylar bone tissue, and improve the initial stability and long-term stability of the uni-compartmental femoral condylar component.

Zonal trabecular uni-compartmental femoral condylar component containing zirconium-niobium alloy on oxidation layer and preparation method thereof

The present disclosure discloses a tibial plateau prosthesis with trabeculae containing zirconium-niobium alloy on oxidation layer and a preparation method thereof. The preparation method uses zirconium niobium alloy powder as raw material, conducting a 3D printing for one-piece molding to obtain an intermediate product of the tibial plateau, performing hot isostatic pressing and cryogenic oxidation to obtain the tibial plateau prosthesis comprising a proximal trabecular layer and a distal trabecular layer; the pore size and porosity of the proximal trabecular layer are evenly arranged, and the distal trabecular layer are partitioned; the topological structure of the trabeculae of the tibial plateau prosthesis is gradiently distributed from three dimensions; the micro-strain in the 64%-72% region of the finite element model of the tibial plateau bone tissue is between the minimum effective strain threshold and the supraphysiological strain threshold, which increases the mechanical adaptation of the prosthesis.

Oxide layer-containing zirconium-niobium alloy tibial plateau prosthesis having bone trabecula and preparation method

A parametric design method for a fan coil unit based on BIM (Building Information Modeling) includes steps of: determining a basic sample; parametrically modeling; setting pipe connection locations and connection sizes of a two-pipe fan coil and a four-pipe fan coil; setting component visibility; completing control settings of left-right one-click selection for the fan coil; arranging an air pipe behind an air outlet of the fan coil; producing air duct flexible connectors; producing diffusers; adding parameter controls of a 'yes or no' type to a return air box, a lower return air flange, and a back to return air flange; completing production of pipes and connectors, and naming. In a heating and ventilation BIM design of building engineering, with the above method, efficiencies of designing, modeling and plotting are obviously increased.

Parametric design method for fan coil unit based on BIM

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Tianjin, China

Yu Cao