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

Production process of three-dimensional expanded polytetrafluoroethylene facial implant

A polytetrafluoroethylene, three-dimensional technology, applied in prostheses, prostheses, medical science, etc., can solve problems such as low deflection and rebound rate, not soft and flexible enough, easy to stiff face, etc., and achieve excellent biocompatibility , simple structure, and the effect of ensuring product quality

Active Publication Date: 2021-11-05
SHANGHAI KANGNING MEDICAL DEVICE
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deflection and rebound rate in the thickness direction are low. After implanting in the human body, the face tends to be stiff and not soft enough.

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
  • Production process of three-dimensional expanded polytetrafluoroethylene facial implant
  • Production process of three-dimensional expanded polytetrafluoroethylene facial implant
  • Production process of three-dimensional expanded polytetrafluoroethylene facial implant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] The present invention provides such as figure 1 A kind of production technology of the three-dimensional expanded polytetrafluoroethylene facial implant shown, comprises the following steps;

[0047] S1, the preparation of film material;

[0048] S2, cutting the film-like material prepared in the S1 step according to the size of the molding die;

[0049] S3. Laminate the diaphragms cut in step S2 to a certain thickness and put them into a mold. After ...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production process of a three-dimensional expanded polytetrafluoroethylene facial implant. The production process comprises the following steps: S1, preparing a membranous material; S2, cutting; S3, carrying out compression molding; S4, carrying out deoiling; S5, carrying out biaxial stretching; S6, stretching in a thickness direction; S7, sintering and curing; and S8, slitting and forming. In the process for preparing the expanded polytetrafluoroethylene facial implant, the step of stretching in the thickness direction is added; the internal structure of the expanded polytetrafluoroethylene facial implant stretched in the three-dimensional direction is more stereoscopic and has multi-dimensional flexibility; in addition, the invention further discloses a high-temperature stretching drying oven of facial implant processing equipment, the stretching height can be remotely and automatically monitored, the suction condition of a suction cup unit of a suction chuck can be accurately detected, a single suction cup can be independently controlled to work, stretching uniformity is guaranteed, the situation of suction failure of part of positions is avoided, product quality is more stable, and the practicability is higher.

Description

technical field [0001] The invention belongs to the technical field of implant processing, and in particular relates to a production process of a three-dimensional expanded polytetrafluoroethylene facial implant. Background technique [0002] Polytetrafluoroethylene, commonly known as "Plastic King", is a high molecular polymer obtained by polymerization of tetrafluoroethylene as a monomer. White waxy, translucent, excellent heat and cold resistance, can be used for a long time at -180~260ºC. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low. With the development of material technology, according to the characteristics of polytetrafluoroethylene, it can be used as a good plastic facial implant through the adjustment of processing technology. [0003] The expanded polytetrafluoroethy...

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 Applications(China)
IPC IPC(8): B29D7/01B29C55/02B29C35/12B29C37/00A61F2/00
CPCB29D7/01B29C55/023B29C35/12B29C37/00A61F2/0059B29C2037/90A61F2240/001
Inventor 李锦蓓刘媛
Owner SHANGHAI KANGNING MEDICAL DEVICE
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