Composite stirring device

Abstract

The invention provides a composite stirring device which comprises a first tank body, a cover body and a stirring mechanism, and the cover body is connected with the first tank body; the stirring mechanism comprises a driving part, a main stirring unit, an auxiliary stirring unit and a transmission mechanism; the driving part is connected with the cover body, and the driving part is connected withthe main stirring unit. The main stirring unit is in transmission connection with the auxiliary stirring unit through a transmission mechanism. According to the device, the main stirring unit and theauxiliary stirring unit can be simultaneously driven to perform multi-dimensional material stirring operation through one driving piece, the overall size is small, and the mounting space is saved. Meanwhile, the composite effect of PEEK and nHA can be improved by the device, so that the composite material has good mechanical property, biocompatibility and osseointegration capability, and the defects of stress shielding and bone resorption caused by mismatching of the mechanical compatibility of an existing bone implantation material and bone tissue are overcome; and the defects of interface debonding caused by weak interface phase interaction binding force of the composite material, weak osseointegration caused by lack of biological activity, too slow bone healing speed and the like are overcome.

Description

technical field [0001] The invention relates to the field of medical implant material processing equipment, in particular to a compound stirring device. Background technique [0002] At present, titanium-based and ceramic-based bone implant materials widely used in clinical practice have some shortcomings that are difficult to overcome. For example, the mechanical strength of metal and ceramic bone implant materials is much higher than that of bone tissue. Stress shielding is prone to occur, which in turn causes bone resorption and bone atrophy, and further leads to a series of complications such as implant loosening. Polyether ether ketone (PEEK) is a high-performance engineering plastic with good mechanical properties and physical and chemical properties. However, the chemical inertness caused by the hydrophobicity of the surface of the PEEK material makes it unable to effectively combine with biological tissues, and its tissue compatibility and biological activity are po...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite stirring device for preparing polyetheretherketone (PEEK)-nanometer hydroxyapatite (nHA) composite material, which can improve the composite effect of PEEK and nHA, so that the composite material has both good It has good mechanical properties and good biocompatibility and osseointegration ability, which overcomes the stress shielding and bone resorption caused by the mismatch between the mechanical properties of the existing bone implant materials and bone tissue, and improves the composite material interface due to weak interaction bonding force. Debonding of the interface, as well as defects such as weak osseointegration and slow bone healing due to lack of biological activity

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