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Process for the manufacture of polymer sheets for use as fixation elements

A technology for polymer sheets, fixing elements, applied in household elements, nanotechnology for materials and surface science, applications, etc., can solve undisclosed problems, and achieve the effect of high viscosity and high elastic modulus

Active Publication Date: 2017-07-14
ORFIT IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, none of these publications disclose a method capable of producing a sheet in the molten state and a polymer sheet in which the mechanical properties of the final fixation element can be altered and / or controlled

Method used

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  • Process for the manufacture of polymer sheets for use as fixation elements
  • Process for the manufacture of polymer sheets for use as fixation elements
  • Process for the manufacture of polymer sheets for use as fixation elements

Examples

Experimental program
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Embodiment 1

[0058] Polymeric sheets having the compositions listed below were prepared by crosslinking individual sheets of polymeric material comprising polycaprolactone (Capa) obtained from Perstorp UK Ltd or from Dow The resulting polyolefin elastomer as well as photoinitiator (benzophenone), photocrosslinker (TAC) and color masterbatch from Ciba. The composition of the polymer sheet is shown in Table 1. Table 1 shows samples containing polycaprolactone (Capa), TAC, and benzophenone, and samples containing polyolefin elastomer, TAC, and benzophenone, and color masterbatches.

[0059] Polymer sheets were produced by extruding Capa or polyolefin elastomers with photoinitiators, photocrosslinkers in a ZSK18 twin-screw extruder (Coperion). The polymer material obtained in this way was formed into sheets by compression molding using a hydraulic press of the Agila model PE30.

[0060] The polymer sheet is crosslinked by exposure to UV radiation. For this purpose, a UV lamp with a power of...

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Abstract

The invention relates to a method of manufacturing a polymer sheet for use as a fixation element, wherein the sheet is at least partly made of a polymer material comprising a polymer, a photoinitiator and a photocrosslinker, the polymer The material is selected from: a copolymer of polycaprolactone, polyethylene and at least one a-olefin having 3 to 10 C atoms; or a mixture of two or more of the above polymers, wherein the polymer sheet A thickness of 1.0 to 5 mm, and wherein the polymer sheet is at least partially cured by exposure to UV radiation to at least partially crosslink the polymer.

Description

technical field [0001] The invention relates to a method of manufacturing a polymer sheet used as a non-invasive fixation element for fixing one or more body parts in a predetermined position and / or posture, as stated in the preamble of claim 1 . Background technique [0002] Examples of fixation elements for fixing body parts are described eg in EP1854439, EP1537831, EP1582187 in the name of Orfit Industries. Fixation elements are frequently used in many applications, for example, in rehabilitation, in orthopedic applications, in the fixation of ligaments or bone structures exhibiting damage due to trauma or disease, where the fixation elements are used to support ligaments and muscle structures and fix it in a predetermined position and / or posture. Furthermore, fixation elements are widely used in radiation therapy and diagnostic imaging. Particularly in diagnostic imaging applications, adequate immobilization of the body to be treated and adequate and reproducible posit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F5/37A61F5/058A61B90/00B82Y30/00C08J5/00
CPCA61F5/05841A61F5/37C08J3/244C08J3/28C08J2323/08C08J2367/04A61B2017/00526A61B90/18A61B90/14A61L15/12A61F5/3707B29C2793/0045B29C2793/009B29C35/0266A61L31/048A61L31/06A61L31/146B29C35/0805B29C67/20B29C2035/0827B29K2021/006B29K2023/08B29K2067/046B29K2105/0014B29K2105/0085B29K2995/0056B29L2007/002B29L2031/737
Inventor S·库皮尔斯B·波格丹诺夫
Owner ORFIT IND