Compound mixing device

Abstract

The application provides a composite stirring device, including a first tank body, a cover body and a stirring mechanism, the cover body is connected to the first tank body; the stirring mechanism includes a driving part, a main stirring unit, an auxiliary stirring unit and a transmission mechanism, and the driving part It is connected with the cover body, and the driving part is connected with the main stirring unit. The main stirring unit is connected with the auxiliary stirring unit through a transmission mechanism. The device can simultaneously drive the main mixing unit and the auxiliary mixing unit to perform multi-dimensional material stirring operations through a driving part, and the overall volume is small, saving installation space. At the same time, the device can improve the composite effect of PEEK and nHA, so that the composite material has good mechanical properties, biocompatibility and osseointegration ability, and overcomes the problems caused by the mismatch between the mechanical compatibility of existing bone implant materials and bone tissue. Stress shielding and bone resorption can improve the interface debonding caused by the weak interfacial bonding force of the composite material and the weak osseointegration and slow bone healing caused by the lack of biological activity.

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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