Double-layered bionic pseudo-structure of cervical intervertebral disci, and its mfg. process

A cervical intervertebral disc and manufacturing process technology, applied in the field of manufacturing engineering, can solve problems such as single structure and inability to simulate the outer fibrous ring of cervical intervertebral disc, and achieve the effect of good shape memory function
CN1718173AInactive Publication Date: 2006-01-11XI AN JIAOTONG UNIV
0 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2006-01-11
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

A biotic dual-layer artificial cervical intervertebral disc is composed of a cylindrical fibre ring and a cylindrical nucleus pulposus. Its preparing process includes such steps as CAD for configuring the prototype, fast shaping to obtain the moulds of artificial fibre ring and artificial nucleus pulposus, filling the aqueous solution of polyvinyl alcohol in the mould of artificial nucleus pulposus, to obtain the artificial nucleus pulposus, fixing it in the another mould, fixing a L-shaped fixer in the mould, immersing the mould in the solution of polyurethane and solidifying agent, and solidifying.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of manufacturing engineering, in particular to a double-layer bionic cervical intervertebral disc prosthesis structure and a manufacturing process thereof. Background technique

[0002] Cervical spondylosis is a common and frequently-occurring disease that plagues human beings. At present, there are many surgical methods, including simple discectomy, spinal fusion, and various internal fixation devices. For simple intervertebral discectomy, the height of the intervertebral space cannot be restored, and the factors that cause compression on the nerve roots cannot be fundamentally relieved; while various fusions and internal fixation instruments restore the height of the intervertebral space, but they have a negative effect on the inner spine. The impact of the mechanical environment is large, which makes the operative segment of the spine lose its motion function, leads to changes in the biomechanical properties of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More