PL430996A1 - Method of manufacturing a polylactide substitute for spongy bone - Google Patents

Method of manufacturing a polylactide substitute for spongy bone

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Publication number
PL430996A1
PL430996A1 PL430996A PL43099619A PL430996A1 PL 430996 A1 PL430996 A1 PL 430996A1 PL 430996 A PL430996 A PL 430996A PL 43099619 A PL43099619 A PL 43099619A PL 430996 A1 PL430996 A1 PL 430996A1
Authority
PL
Poland
Prior art keywords
substitute
polylactide
spongy bone
manufacturing
lyophilized
Prior art date
Application number
PL430996A
Other languages
Polish (pl)
Other versions
PL239644B1 (en
Inventor
Agnieszka Gadomska-Gajadhur
Monika Budnicka
Paweł Ruśkowski
Adrianna Padewska
Original Assignee
Politechnika Warszawska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Warszawska filed Critical Politechnika Warszawska
Priority to PL430996A priority Critical patent/PL239644B1/en
Publication of PL430996A1 publication Critical patent/PL430996A1/en
Publication of PL239644B1 publication Critical patent/PL239644B1/en

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Abstract

Przedmiotem zgłoszenia jest sposób wytwarzania polilaktydowego substytutu kości gąbczastej, który charakteryzuje się tym, że poliaktydowy substytut kości gąbczastej zalewa się wodnym roztworem chlorowodorku chitozanu i/albo alginianu sodu i/albo hialuronianu sodu o stężeniu 0,5 - 3% w/v, ewentualnie z dodatkiem alkoholu C1-C3 w ilości do 5%obj. i utrzymuje się w warunkach próżni do 30 minut, w temperaturze 25 - 50°C, po czym nasączony substytut wyjmuje się z roztworu i zamraża w temperaturze -30 - 0°C w czasie od 5 h do 24 h, a następnie substytut poddaje się liofilizacji w czasie od 24 h do 48 h, w temperaturze -60-(-30)°C, przy ciśnieniu poniżej 120 mbar, po czym wytrąca się chitozan z substytutu liofilizowanego z chlorowodorkiem chitozanu za pomocą roztworu wodorowęglanu sodu w mieszaninie woda:alkohol C1-C3 i/albo sieciuje się alginian z substytutu liofilizowanego z alginianem sodu za pomocą wodnego roztworu chlorku wapnia o stężeniu 0,05 - 2 M, w warunkach próżni w czasie do 20 min, w temperaturze 15 - 30°C, po czym substytut płucze się i suszy.The subject of the application is a method for the production of polylactide spongy bone substitute, which is characterized in that the polylactide substitute of spongy bone is flooded with an aqueous solution of chitosan hydrochloride and / or sodium alginate and / or sodium hyaluronate at a concentration of 0.5 - 3% w / v, or by the addition of C1-C3 alcohol in an amount up to 5% vol. and kept under vacuum for up to 30 minutes at 25 - 50 ° C, then the soaked substitute is removed from the solution and frozen at -30 - 0 ° C for 5 h to 24 h, and then the substitute is subjected to lyophilization for 24 h to 48 h, at a temperature of -60 - (- 30) ° C, at a pressure below 120 mbar, after which chitosan is precipitated from a lyophilized substitute with chitosan hydrochloride using a sodium bicarbonate solution in a mixture of water: C1 alcohol -C3 and / or the alginate from the lyophilized substitute with sodium alginate is cross-linked with an aqueous solution of calcium chloride with a concentration of 0.05 - 2 M, under vacuum conditions for up to 20 minutes, at a temperature of 15 - 30 ° C, then the substitute is rinsed and dries.

PL430996A 2019-08-29 2019-08-29 Method of manufacturing a polylactide substitute for spongy bone PL239644B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL430996A PL239644B1 (en) 2019-08-29 2019-08-29 Method of manufacturing a polylactide substitute for spongy bone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL430996A PL239644B1 (en) 2019-08-29 2019-08-29 Method of manufacturing a polylactide substitute for spongy bone

Publications (2)

Publication Number Publication Date
PL430996A1 true PL430996A1 (en) 2021-03-08
PL239644B1 PL239644B1 (en) 2021-12-20

Family

ID=75107818

Family Applications (1)

Application Number Title Priority Date Filing Date
PL430996A PL239644B1 (en) 2019-08-29 2019-08-29 Method of manufacturing a polylactide substitute for spongy bone

Country Status (1)

Country Link
PL (1) PL239644B1 (en)

Also Published As

Publication number Publication date
PL239644B1 (en) 2021-12-20

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