KR101908287B1 - 다공성 골 이식재 및 이의 제조 방법 - Google Patents
다공성 골 이식재 및 이의 제조 방법 Download PDFInfo
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- KR101908287B1 KR101908287B1 KR1020160082522A KR20160082522A KR101908287B1 KR 101908287 B1 KR101908287 B1 KR 101908287B1 KR 1020160082522 A KR1020160082522 A KR 1020160082522A KR 20160082522 A KR20160082522 A KR 20160082522A KR 101908287 B1 KR101908287 B1 KR 101908287B1
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Abstract
Description
도 2a 및 도 2b는 인산 칼슘계 세라믹스 분말의 SEM 이미지이다.
도 3a 및 도 3b는 소결체의 현미경 이미지이다.
도 4a는 소결된 골 이식재의 X-선 회절 분석을 실시한 그래프이고, 도 4b는 소결된 골 이식재의 압축 강도를 측정한 그래프이다.
도 5a 내지 도 5d는 소결된 골 이식재의 각 배율별 미세구조를 도시한 도면이다.
Claims (15)
- 3차원 쾌속 조형법에 기초하여 블록 타입의 상호 연결된 3차원 기공 구조 구현이 가능한 다공성 골 이식재의 제조 방법에 있어서,
인산 칼슘계 세라믹스의 분말의 중량 대비 10 내지 60중량%의 2차 증류수, 1 내지 20중량%의 점성제, 0.1 내지 10%중량의 가소제 및 0.1 내지 10중량%의 윤활제를 첨가하고 알루미나 유발을 사용하여 세라믹 페이스트를 제조하는 단계;
3차원 쾌속 조형법에 기초하여 상기 세라믹 페이스트를 성형한 성형체를 제조하는 단계;
상기 성형체를 25~60℃에서 12~48시간 동안 건조시키는 단계;
상기 건조된 성형체를 분당 0.1~5℃의 속도로 500~600℃까지 승온시킨 후, 1 내지 3시간 동안 유지시켜, 상기 건조된 성형체에 포함된 유기 바인더를 탈지시키는 단계 및
분당 1~10℃의 속도로 1100~1200℃까지 승온시킨 후, 1~5시간 동안 유지시킨 후 로냉하여 소결시키는 단계를 포함하는 다공성 골 이식재의 제조 방법. - 삭제
- 제 1 항에 있어서,
상기 점성제는 메틸셀룰로오스(Methyl cellulose), 하이드록시프로필 메틸셀룰로오스(Hydroxypropyl methyl cellulose), 콜라겐(Collagen), 파라핀(Paraffin), 젤라틴(Gelatine), 알지네이트(Alginate), 스타치(Starch) 및 왁스(Wax)로 이루어진 군으로부터 선택되는 어느 하나 또는 이의 혼합인 것을 특징으로 하는 다공성 골 이식재의 제조 방법. - 삭제
- 제 1 항에 있어서,
상기 가소제는 폴리에틸렌글리콜(Polyethylene glycol), 글리세롤(Glycerol), 디부틸 프탈레이트(Dibutyl phthalate) 및 디메틸 프탈레이트(Dimethyl phthalate)로 이루어진 군으로부터 선택되는 어느 하나 또는 이의 혼합인 것을 특징으로 하는 다공성 골 이식재의 제조 방법. - 삭제
- 제 1 항에 있어서,
상기 윤활제는 캐스터오일(Castor oil), 스테애릭 애시드(Stearic acid), 올레익 에시드(Oleic acid) 및 올리브 오일(Olive oil)로 이루어진 군으로부터 선택되는 어느 하나 또는 이의 혼합인 것을 특징으로 하는 다공성 골 이식재의 제조 방법. - 삭제
- 삭제
- 제 1 항에 있어서,
상기 인산 칼슘계 세라믹스는 모노 칼슘 포스페이트 모노하이드레이트(Monocalcium phosphate monohydrate), 모노 칼슘 포스페이트 안하이드로스(Monocalcium phosphate anhydrous), 칼슘 메타 포스페이트(Calcium metaphosphate), 디 칼슘 포스페이트 디하이드레이트(Dicalcium phosphate dihydrate), 디 칼슘 포스페이트 안하이드로스(Dicalcium phosphate anhydrous), 칼슘 파이로포스페이트(Calcium pyrophosphate), 옥타 칼슘 포스페이트(Octacalcium phosphate), 알파-트리칼슘 포스페이트(α-tricalcium phosphate), 베타-트리칼슘 포스페이트(β-tricalcium phosphate), 칼슘 디피시엔트 하이드록시 아파타이트(Calcium deficient hydroxyapatite), 하이드록시아파타이트(Hydroxyapatite), 테트라 칼슘 포스페이트(Tetracalcium phosphate) 및 아몰포스 칼슘 포스페이트(Amorphous calcium phosphate)로 이루어진 군으로부터 선택되는 어느 하나 또는 이의 혼합인 것을 특징으로 하는 다공성 골 이식재의 제조 방법. - 제 1 항에 있어서,
상기 세라믹 페이스트를 성형한 성형체를 제조하는 단계는,
상기 세라믹 페이스트를 압출기가 연결된 실린지에 주입한 후, 상기 3차원 쾌속 조형법에 기초하여 상기 압출기에 압력을 가해 상기 성형체를 제조하는 것인 다공성 골 이식재의 제조 방법. - 삭제
- 삭제
- 삭제
- 제 1 항, 제 3 항, 제 5 항, 제 7 항, 제 10 항 내지 제 11 항 중 어느 한 항의 제조 방법에 따라 제조된 다공성 골 이식재.
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