PL436121A1 - Membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and method of preparation thereof - Google Patents
Membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and method of preparation thereofInfo
- Publication number
- PL436121A1 PL436121A1 PL436121A PL43612120A PL436121A1 PL 436121 A1 PL436121 A1 PL 436121A1 PL 436121 A PL436121 A PL 436121A PL 43612120 A PL43612120 A PL 43612120A PL 436121 A1 PL436121 A1 PL 436121A1
- Authority
- PL
- Poland
- Prior art keywords
- temperature
- membrane
- fondaparinux
- calenders
- stretched
- Prior art date
Links
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- Medicinal Preparation (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Abstract
Przedmiotem wynalazku jest membrana z organicznego materiału o właściwościach porotwórczych, przeciwzapalnych i przeciwkrzepliwych oraz sposób jej otrzymywania polegający na tym, że materiał w postaci polimeru fluorowego, korzystnie poli(tetrafluoroetylenu) (PTFE, teflon) lub polifluorku winylidenu (PVDF) lub kopolimeru tetrafluoroetylenu i heksafluoropropylenu (FEP) wytłacza się na głowicy liniowej w postaci struny lub na głowicy krzyżowej w postaci rurki lub na głowicy płaskiej w postaci folii, a w kolejnym etapie przeprowadza się proces immobilizacji fondaparynuksu do struktury sterycznej tak otrzymanego materiału w sposób zapewniający jej zawartość w materiale w proporcji baza - fondaparynuks od 80 ÷ 1 do 1200 ÷ 1, w taki sposób, że po wstępnym ochłodzeniu w łaźni zawierającej przesycony wodny roztwór fondaparynuksu do temperatury ±30°C od temperatury przejścia plastycznego, dokonuje się jego rozciągnięcia na kalandrach, tak aby otrzymać wydłużenie 5-20-krotne, co skutkuje powstaniem mikroporów, w których immobilizuje się fondaparynuks, następnie przeprowadza się drugi, finalny etap wytwarzania membrany, który realizuje się w trojaki sposób zależny od formy materiału otrzymanego w etapie pierwszym, to jest albo: - według wariantu a), w którym materiał otrzymany w pierwszym etapie w formie struny doprowadza się do temperatury ±30°C od temperatury przejścia plastycznego, po czym dokonuje się jej rozciągnięcia na kalandrach, tak aby otrzymać membranę w postaci płaskiej folii o grubości od 0,2 do 200 μm, albo - według wariantu b), w którym materiał otrzymany w pierwszym etapie w formie rurki doprowadza się do temperatury ±30°C od temperatury przejścia plastycznego, po czym dokonuje się jej rozciągnięcia na kalandrach, tak aby otrzymać membranę w postaci rurki o średnicy zewnętrznej od 30 do 600 μm, albo - według wariantu c), w którym materiał otrzymany w pierwszym etapie w formie folii doprowadza się do temperatury ±30°C od temperatury przejścia plastycznego, po czym dokonuje się jej rozciągnięcia na kalandrach, tak aby otrzymać membranę w postaci płaskiej folii o grubości od 0,2 do 200 μm.The subject of the invention is a membrane made of an organic material with pore-forming, anti-inflammatory and anticoagulant properties and a method for its preparation, consisting in the fact that the material is in the form of a fluoropolymer, preferably poly (tetrafluoroethylene) (PTFE, Teflon) or polyvinylidene fluoride (PVDF) or a copolymer of tetrafluoroethylene and hexafluoride (FEP) is extruded on a linear head in the form of a string or on a cross head in the form of a tube or on a flat head in the form of a foil, and in the next stage the process of fondaparinux immobilization to the steric structure of the material thus obtained is carried out in a way ensuring its content in the material in the proportion base - fondaparinux from 80 ÷ 1 to 1200 ÷ 1, in such a way that after initial cooling in a bath containing a supersaturated aqueous solution of fondaparinux to a temperature of ± 30 ° C from the plastic transition temperature, it is stretched on calenders to obtain an elongation of 5 20 times, resulting in an uprising In the case of micropores in which fondaparinux is immobilized, then the second, final step of membrane production is carried out, which is carried out in three ways depending on the form of the material obtained in the first step, that is either: - according to variant a), in which the material obtained in the first step is the stage in the form of a string is brought to a temperature of ± 30 ° C from the plastic transition temperature, and then it is stretched on calenders so as to obtain a membrane in the form of a flat foil with a thickness of 0.2 to 200 μm, or - according to variant b) in which the tubular material obtained in the first step is brought to a temperature of ± 30 ° C from the plastic transition temperature and is then stretched on calenders to obtain a tubular membrane with an outside diameter of 30 to 600 μm, or - according to variant c), in which the material obtained in the first stage in the form of a film is brought to a temperature of ± 30 ° C from the plastic transition temperature, and then m, it is stretched on calenders so as to obtain a membrane in the form of a flat foil with a thickness of 0.2 to 200 μm.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL436121A PL240943B1 (en) | 2020-11-27 | 2020-11-27 | Membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and method of preparation thereof |
PCT/IB2021/061016 WO2022113019A1 (en) | 2020-11-27 | 2021-11-26 | A membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and the method of obtaining it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL436121A PL240943B1 (en) | 2020-11-27 | 2020-11-27 | Membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and method of preparation thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
PL436121A1 true PL436121A1 (en) | 2021-07-05 |
PL240943B1 PL240943B1 (en) | 2022-07-04 |
Family
ID=76689690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL436121A PL240943B1 (en) | 2020-11-27 | 2020-11-27 | Membrane made of organic material with pore-forming, anti-inflammatory and anticoagulant properties and method of preparation thereof |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL240943B1 (en) |
-
2020
- 2020-11-27 PL PL436121A patent/PL240943B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL240943B1 (en) | 2022-07-04 |
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