Porous metal and PEEK composite implanted joint prosthesis and preparation method

A technology of porous metal and joint prosthesis, which is applied in the direction of metal processing equipment, prosthesis, ankle joints, etc., and can solve the problems of insufficient stability and biocompatibility of joint prosthesis and easy failure of joint prosthesis

Pending Publication Date: 2021-01-29
重庆熙科医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a porous metal and PEEK composite implanted joint prosthesis and its preparation method

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  • Porous metal and PEEK composite implanted joint prosthesis and preparation method
  • Porous metal and PEEK composite implanted joint prosthesis and preparation method
  • Porous metal and PEEK composite implanted joint prosthesis and preparation method

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention discloses a porous metal and PEEK composite implanted joint prosthesis and a preparation method. The porous metal and PEEK composite implanted joint prosthesis comprises a bone fusion end, an injection molding sealing plate and a macropore end, multiple fixing columns of the bone fusion end are connected with a micropore layer, a supporting plate is connected with the micropore layer, the macropore layer of the macropore end is arranged on one side of the micropore layer, and the macropore layer is covered with the PEEK layer. The multiple fixing columns are matched with holes drilled in a host bone to provide initial fixation, the micro-pore layer is arranged at one end of each fixing column, so that the elasticity modulus of the metal implant can be reduced, stress shielding is avoided, and in addition, communicated micro-pores provide space for bone tissue ingrowth; and the macroporous layer is made of titanium alloy, cobalt-chromium-molybdenum alloy and tantalum alloy, and a plurality of holes are formed in the macroporous layer, so that the molten PEEK material can conveniently enter the communicating holes during injection molding, mutual embedded fixation of the two materials is formed, the bone conductivity and osteogenesis capacity of the implant are effectively improved, and the service life of the implant is prolonged.

Description

technical field [0001] The invention relates to the field of orthopedic joint manufacturing, in particular to a porous metal and PEEK composite implanted joint prosthesis and a preparation method. Background technique [0002] For diseases such as joint bone defects, bone lesions, and osteonecrosis, the main method is to use joint prosthesis implantation and fusion for repair. [0003] Existing joint prostheses mainly use polyetheretherketone (PEEK) and alloy materials as implants. However, the hydrophobicity of PEEK materials makes the adsorption capacity of cells on it weak, the osseointegration ability is poor, and its biological inertness is difficult to achieve. Combined with the host bone, it reduces the initial fixation and long-term stability of the implant; medical metal materials including titanium alloys, bone molybdenum alloys, and tantalum alloys have good biocompatibility and excellent mechanical properties. Commonly used materials for orthopedic implants, but...

Claims

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Application Information

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IPC IPC(8): A61F2/30A61F2/42
CPCA61F2/30A61F2/30749A61F2/30771A61F2/30942A61F2/4202A61F2002/30004A61F2002/30011A61F2002/30014A61F2002/30028A61F2002/30329A61F2002/30784A61F2002/3093A61F2002/30934A61F2002/30948A61F2002/30985A61F2002/4207A61F2310/00005A61F2310/00023A61F2310/00101A61F2310/00131
Inventor 刘飞谢海琼张凯飞
Owner 重庆熙科医疗科技有限公司
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