Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

a spinal implant

A technology of implants and spine, applied in the field of prostheses, can solve the problems of unstable fusion, slow fusion of spinal implants and surrounding bone, etc., and achieve a firm combination

Active Publication Date: 2020-10-09
CHONGQING RUNZE PHARM CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned spinal implants all use porous materials with a single pore. On the one hand, the material itself can store insufficient drugs such as bone growth factors. In addition, the surface that combines with the bone is relatively flat, resulting in the fusion of the spinal implant and the surrounding bone. Slow, unstable fusion

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a spinal implant
  • a spinal implant
  • a spinal implant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A spinal implant, made of a porous cobalt-based alloy material CoCrMo with a secondary pore structure, the diameter of the large hole cavity is 100µm-350µm, the holes are interconnected, and the diameter of the small hole on the wall of the large hole cavity is 400nm-650nm. The small holes are also connected to each other, and the large and small holes are also connected to each other. The porosity of the small holes is 50%, the diameter of the upper surface and the lower surface is 2mm, and the depth is 0.4 times its diameter, that is, 0.8mm. Holes with a spacing of 2mm. Its preparation method is:

[0031] 1. Preparation of hierarchical porous materials

[0032] a. Material preparation

[0033] Cobalt-based alloy CoCrMo powder with a particle size of 100nm-150nm is used as raw material, methyl cellulose with a particle size of 500nm-750nm is used as the smallest pore-forming agent, and polystyrene with a particle size of 500nm-750nm is used as a binder Agent, accor...

Embodiment 2

[0040] This embodiment is similar to Embodiment 1, the difference is that the material is pure titanium, the porosity of the pores is 55%, the upper surface and the lower surface have a diameter of 2.5mm, and the depth is 1 times its diameter, i.e. 2.5mm. Holes with a spacing of 3mm. The preparation method is similar to Example 1.

Embodiment 3

[0042] This embodiment is similar to Embodiment 1, the difference is that the material is niobium, the porosity of the small hole is 53%, and the diameter on the wall of the through hole between the upper surface, the lower surface and the upper surface to the lower surface is 2.2mm, The depth is 0.6 times its diameter, that is, a hole of 1.32 mm, and the distance between holes is 2.5 mm. The preparation method is similar to Example 1.

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

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A spine implanting member is made of a porous material. The spine implanting member includes a straight front end, a convex back end, two ends extending between the front end and the back end, an arcupper surface having an convex center, and a flat lower surface; a through holes is formed between the upper surface and the lower surface; a through hole is formed in the back end, extends inward from the back end, and communicates with the through hole formed between the upper surface and the lower surface; the porous material has multi-level pore cavities which are classified according to the size of the pore diameter; pore cavities at each level communicate with each other, and pore cavities at all the levels communicate with each other; the porosity of a portion at the minimum level of the porous material is not less than 50%; pores are formed in the upper surface and the lower surface; the spine implanting member can bear more medicines such as bone growth factors, and can fuse withsurrounding bones rapidly; a joint surface between the spine implanting member and the bones can be enlarged; and fusion between the spine implanting member and the bones is very firm.

Description

technical field [0001] The present invention relates to a prosthesis, especially a spinal implant. Background technique [0002] Spinal degeneration, segmental instability, trauma, etc., may cause pain and limb motor sensory disturbance. Mild cases can be relieved by non-surgical treatment, and those who are ineffective by non-surgical treatment and symptoms Severe cases require surgery. Total or subtotal corpectomy with anterior spinal decompression is considered the main surgical treatment. During the operation, the surgeon needs to reconstruct the spine that has lost its complete stability. In the past, the common method was to use autologous iliac bone to transplant and fill the vertebral bone defect. However, the simple autologous bone graft has the disadvantages of insufficient autologous bone mass and insufficient immediate stability after operation. As a kind of effective spinal implants, titanium cages and artificial vertebral bodies have gradually been widely us...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/44A61L27/04A61L27/56
Inventor 叶雷
Owner CHONGQING RUNZE PHARM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com