BIOCOMPOSITE POROUS MATERIAL AND PROCESS FOR PREPARING THE SAME
The invention relates to a biocomposite porous material to be used in bone reconstruction and to a process for preparing the same. According to the invention, the material consists of 45...50% hydroxyapatite, 37...43% titanium dioxide, 4...9% calcium carbonate and 5...8% calcium phosphate. The proce...
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| creator | CROITORU SORIN MIHAI MARINESCU CORNELIA ALINA GHEORGHE MIHAELA DANIELA BOTEA-PETCU ALINA COMAN DANIELA GORGAN MIRCEA RADU TEISANU ALINA CRISTINA BREHAR FELIX-MIRCEA NEACŞU DANA ANDREEA GINGU OANA TANASESCU SPERANŢA VALERIA SOFRONIA ANCUŢA MIHAELA SANDU ROMICA SIMA GABRIELA |
| description | The invention relates to a biocomposite porous material to be used in bone reconstruction and to a process for preparing the same. According to the invention, the material consists of 45...50% hydroxyapatite, 37...43% titanium dioxide, 4...9% calcium carbonate and 5...8% calcium phosphate. The process, as claimed by the invention, consists in homogenizing the components as powder, by mixing them at a temperature of 240°C, gradually cooling the mixture down to the ambient temperature while adding usual conditioning agents and mould pressing to obtain a raw semiproduct which is subjected to sintering, in two steps, resulting in a material of nanometric sintered crystalline hydroxyapatite structure having a grain size of 200...800 nm, reinforced with a micronic crystalline titanium dioxide structure having a grain size of 15...110 μ m, porosity of 32...43%, a transverse elasticity modulus of 410...550 MPa, compression resistance of 30...60 MPa and elongation of 6...11%.
Invenţia se referă la un material poros biocompozit, utilizat pentru reconstrucţie osoasă, şi la un procedeu de obţinere a acestuia. Materialul conform invenţiei este constituit, în procente masice, din 45...50% hidroxiapatită, 37...43% dioxid de titan, 4...9% carbonat de calciu şi 5...8% fosfat de calciu. Procedeul conform invenţiei constă în omogenizarea prin amestecare a componentelor sub formă de pulbere la temperatura de 240°C, răcirea treptată a amestecului până la temperatura ambiantă, odată cu adăugarea unor agenţi de condiţionare uzuali, formarea în matriţă, din care rezultă un semifabricat crud, care este supus sinterizării în două etape, rezultând un material cu o structură sinterizată cristalină, nanometrică, de hidroxiapatită având o granulaţie de 200...800 nm, ranforsată de o structură cristalină micronică de dioxid de titan cu o granulaţie de 15...110 μ m, o porozitate de 32...43%, un modul de elasticitate transversal de 410...550 MPa, o rezistenţă la compresiune de 30...60 MPa şi o alungire de 6...11%. |
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Invenţia se referă la un material poros biocompozit, utilizat pentru reconstrucţie osoasă, şi la un procedeu de obţinere a acestuia. Materialul conform invenţiei este constituit, în procente masice, din 45...50% hidroxiapatită, 37...43% dioxid de titan, 4...9% carbonat de calciu şi 5...8% fosfat de calciu. Procedeul conform invenţiei constă în omogenizarea prin amestecare a componentelor sub formă de pulbere la temperatura de 240°C, răcirea treptată a amestecului până la temperatura ambiantă, odată cu adăugarea unor agenţi de condiţionare uzuali, formarea în matriţă, din care rezultă un semifabricat crud, care este supus sinterizării în două etape, rezultând un material cu o structură sinterizată cristalină, nanometrică, de hidroxiapatită având o granulaţie de 200...800 nm, ranforsată de o structură cristalină micronică de dioxid de titan cu o granulaţie de 15...110 μ m, o porozitate de 32...43%, un modul de elasticitate transversal de 410...550 MPa, o rezistenţă la compresiune de 30...60 MPa şi o alungire de 6...11%.</description><language>eng ; rum</language><subject>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES ; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ; HUMAN NECESSITIES ; HYGIENE ; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES ; MEDICAL OR VETERINARY SCIENCE ; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180530&DB=EPODOC&CC=RO&NR=132542A0$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180530&DB=EPODOC&CC=RO&NR=132542A0$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CROITORU SORIN MIHAI</creatorcontrib><creatorcontrib>MARINESCU CORNELIA ALINA</creatorcontrib><creatorcontrib>GHEORGHE MIHAELA DANIELA</creatorcontrib><creatorcontrib>BOTEA-PETCU ALINA</creatorcontrib><creatorcontrib>COMAN DANIELA</creatorcontrib><creatorcontrib>GORGAN MIRCEA RADU</creatorcontrib><creatorcontrib>TEISANU ALINA CRISTINA</creatorcontrib><creatorcontrib>BREHAR FELIX-MIRCEA</creatorcontrib><creatorcontrib>NEACŞU DANA ANDREEA</creatorcontrib><creatorcontrib>GINGU OANA</creatorcontrib><creatorcontrib>TANASESCU SPERANŢA VALERIA</creatorcontrib><creatorcontrib>SOFRONIA ANCUŢA MIHAELA</creatorcontrib><creatorcontrib>SANDU ROMICA</creatorcontrib><creatorcontrib>SIMA GABRIELA</creatorcontrib><title>BIOCOMPOSITE POROUS MATERIAL AND PROCESS FOR PREPARING THE SAME</title><description>The invention relates to a biocomposite porous material to be used in bone reconstruction and to a process for preparing the same. According to the invention, the material consists of 45...50% hydroxyapatite, 37...43% titanium dioxide, 4...9% calcium carbonate and 5...8% calcium phosphate. The process, as claimed by the invention, consists in homogenizing the components as powder, by mixing them at a temperature of 240°C, gradually cooling the mixture down to the ambient temperature while adding usual conditioning agents and mould pressing to obtain a raw semiproduct which is subjected to sintering, in two steps, resulting in a material of nanometric sintered crystalline hydroxyapatite structure having a grain size of 200...800 nm, reinforced with a micronic crystalline titanium dioxide structure having a grain size of 15...110 μ m, porosity of 32...43%, a transverse elasticity modulus of 410...550 MPa, compression resistance of 30...60 MPa and elongation of 6...11%.
Invenţia se referă la un material poros biocompozit, utilizat pentru reconstrucţie osoasă, şi la un procedeu de obţinere a acestuia. Materialul conform invenţiei este constituit, în procente masice, din 45...50% hidroxiapatită, 37...43% dioxid de titan, 4...9% carbonat de calciu şi 5...8% fosfat de calciu. Procedeul conform invenţiei constă în omogenizarea prin amestecare a componentelor sub formă de pulbere la temperatura de 240°C, răcirea treptată a amestecului până la temperatura ambiantă, odată cu adăugarea unor agenţi de condiţionare uzuali, formarea în matriţă, din care rezultă un semifabricat crud, care este supus sinterizării în două etape, rezultând un material cu o structură sinterizată cristalină, nanometrică, de hidroxiapatită având o granulaţie de 200...800 nm, ranforsată de o structură cristalină micronică de dioxid de titan cu o granulaţie de 15...110 μ m, o porozitate de 32...43%, un modul de elasticitate transversal de 410...550 MPa, o rezistenţă la compresiune de 30...60 MPa şi o alungire de 6...11%.</description><subject>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES</subject><subject>DISINFECTION, STERILISATION, OR DEODORISATION OF AIR</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLB38vR39vcN8A_2DHFVCPAP8g8NVvB1DHEN8nT0UXD0c1EICPJ3dg0OVnDzDwKyXQMcgzz93BVCPFwVgh19XXkYWNMSc4pTeaE0N4O8m2uIs4duakF-fGpxQWJyal5qSXyQv6GxkamJkaOBMWEVAPLoKbA</recordid><startdate>20180530</startdate><enddate>20180530</enddate><creator>CROITORU SORIN MIHAI</creator><creator>MARINESCU CORNELIA ALINA</creator><creator>GHEORGHE MIHAELA DANIELA</creator><creator>BOTEA-PETCU ALINA</creator><creator>COMAN DANIELA</creator><creator>GORGAN MIRCEA RADU</creator><creator>TEISANU ALINA CRISTINA</creator><creator>BREHAR FELIX-MIRCEA</creator><creator>NEACŞU DANA ANDREEA</creator><creator>GINGU OANA</creator><creator>TANASESCU SPERANŢA VALERIA</creator><creator>SOFRONIA ANCUŢA MIHAELA</creator><creator>SANDU ROMICA</creator><creator>SIMA GABRIELA</creator><scope>EVB</scope></search><sort><creationdate>20180530</creationdate><title>BIOCOMPOSITE POROUS MATERIAL AND PROCESS FOR PREPARING THE SAME</title><author>CROITORU SORIN MIHAI ; MARINESCU CORNELIA ALINA ; GHEORGHE MIHAELA DANIELA ; BOTEA-PETCU ALINA ; COMAN DANIELA ; GORGAN MIRCEA RADU ; TEISANU ALINA CRISTINA ; BREHAR FELIX-MIRCEA ; NEACŞU DANA ANDREEA ; GINGU OANA ; TANASESCU SPERANŢA VALERIA ; SOFRONIA ANCUŢA MIHAELA ; SANDU ROMICA ; SIMA GABRIELA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RO132542A03</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rum</language><creationdate>2018</creationdate><topic>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES</topic><topic>DISINFECTION, STERILISATION, OR DEODORISATION OF AIR</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>CROITORU SORIN MIHAI</creatorcontrib><creatorcontrib>MARINESCU CORNELIA ALINA</creatorcontrib><creatorcontrib>GHEORGHE MIHAELA DANIELA</creatorcontrib><creatorcontrib>BOTEA-PETCU ALINA</creatorcontrib><creatorcontrib>COMAN DANIELA</creatorcontrib><creatorcontrib>GORGAN MIRCEA RADU</creatorcontrib><creatorcontrib>TEISANU ALINA CRISTINA</creatorcontrib><creatorcontrib>BREHAR FELIX-MIRCEA</creatorcontrib><creatorcontrib>NEACŞU DANA ANDREEA</creatorcontrib><creatorcontrib>GINGU OANA</creatorcontrib><creatorcontrib>TANASESCU SPERANŢA VALERIA</creatorcontrib><creatorcontrib>SOFRONIA ANCUŢA MIHAELA</creatorcontrib><creatorcontrib>SANDU ROMICA</creatorcontrib><creatorcontrib>SIMA GABRIELA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CROITORU SORIN MIHAI</au><au>MARINESCU CORNELIA ALINA</au><au>GHEORGHE MIHAELA DANIELA</au><au>BOTEA-PETCU ALINA</au><au>COMAN DANIELA</au><au>GORGAN MIRCEA RADU</au><au>TEISANU ALINA CRISTINA</au><au>BREHAR FELIX-MIRCEA</au><au>NEACŞU DANA ANDREEA</au><au>GINGU OANA</au><au>TANASESCU SPERANŢA VALERIA</au><au>SOFRONIA ANCUŢA MIHAELA</au><au>SANDU ROMICA</au><au>SIMA GABRIELA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>BIOCOMPOSITE POROUS MATERIAL AND PROCESS FOR PREPARING THE SAME</title><date>2018-05-30</date><risdate>2018</risdate><abstract>The invention relates to a biocomposite porous material to be used in bone reconstruction and to a process for preparing the same. According to the invention, the material consists of 45...50% hydroxyapatite, 37...43% titanium dioxide, 4...9% calcium carbonate and 5...8% calcium phosphate. The process, as claimed by the invention, consists in homogenizing the components as powder, by mixing them at a temperature of 240°C, gradually cooling the mixture down to the ambient temperature while adding usual conditioning agents and mould pressing to obtain a raw semiproduct which is subjected to sintering, in two steps, resulting in a material of nanometric sintered crystalline hydroxyapatite structure having a grain size of 200...800 nm, reinforced with a micronic crystalline titanium dioxide structure having a grain size of 15...110 μ m, porosity of 32...43%, a transverse elasticity modulus of 410...550 MPa, compression resistance of 30...60 MPa and elongation of 6...11%.
Invenţia se referă la un material poros biocompozit, utilizat pentru reconstrucţie osoasă, şi la un procedeu de obţinere a acestuia. Materialul conform invenţiei este constituit, în procente masice, din 45...50% hidroxiapatită, 37...43% dioxid de titan, 4...9% carbonat de calciu şi 5...8% fosfat de calciu. Procedeul conform invenţiei constă în omogenizarea prin amestecare a componentelor sub formă de pulbere la temperatura de 240°C, răcirea treptată a amestecului până la temperatura ambiantă, odată cu adăugarea unor agenţi de condiţionare uzuali, formarea în matriţă, din care rezultă un semifabricat crud, care este supus sinterizării în două etape, rezultând un material cu o structură sinterizată cristalină, nanometrică, de hidroxiapatită având o granulaţie de 200...800 nm, ranforsată de o structură cristalină micronică de dioxid de titan cu o granulaţie de 15...110 μ m, o porozitate de 32...43%, un modul de elasticitate transversal de 410...550 MPa, o rezistenţă la compresiune de 30...60 MPa şi o alungire de 6...11%.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL |
| title | BIOCOMPOSITE POROUS MATERIAL AND PROCESS FOR PREPARING THE SAME |
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