KR101985094B1 - 정형외과적인 인공 금속물 및 이의 제조 방법 - Google Patents
정형외과적인 인공 금속물 및 이의 제조 방법 Download PDFInfo
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Abstract
Description
도 2는 도 1의 정형외과적인 인공 금속물의 표면의 일부(A)를 확대한 확대도이다.
도 3은 도 1의 정형외과적인 인공 금속물의 표면의 일부(A) 중 나노-마이크로 구조체의 일 예를 개략적으로 나타낸 도면이다.
도 4는 일 실시예에 따른 나노-마이크로 구조체의 또 다른 예를 개략적으로 나타낸 사시도이다.
도 5는 도 4의 일 상태에 따른 나노-마이크로 구조체의 단면을 확대한 확대도이다.
도 6은 도 4의 또 다른 상태에 따른 나노-마이크로 구조체의 단면을 확대한 확대도이다.
도 7은 도 1의 정형외과적인 인공 금속물의 표면의 일부(A) 중 자가 조립 단층의 일 예를 개략적으로 나타낸 도면이다.
도 8은 일 실시예에 따른 정형외과적인 인공 금속물의 제조 방법을 개략적으로 나타낸 순서도이다.
도 9는 일 실시예에 따른 정형외과적인 인공 금속물의 제조 방법 중 정형외과적인 인공 금속물의 표면에 구조를 형성하는 방법의 일 예를 개략적으로 나타낸 순서도이다.
도 10은 일 실시예에 따른 정형외과적인 인공 금속물의 제조 방법 중 또 다른 예를 개략적으로 나타낸 순서도이다.
도 11은 기존의 인공 금속물 및 일 실시예에 따른 정형외과적인 인공 금속물의 제조 방법에 의하여 제조된 인공 금속물의 시간에 따른 미생물 생성 정도를 나타낸 도면이다.
도 12는 TCP 방식에 따라 조직 배양 플레이트에서 생체 막 생성자들을 스크린(screen)하는 실험을 나타낸 도면이다.
도 13은 Tube 방식에 따라 생체 막 형성 정도를 비교하는 실험을 나타낸 도면이다.
제조 방법 적용 여부 | 1주 | 2주 | 3주 | 4주 | 5주 | 6주 |
처리 | X | X | X | X | X | X |
미처리 | X | 형성 | 형성 | 형성 | 형성 | 형성 |
Claims (13)
- 금속 재료로 만들어진 인공 금속물의 표면에 형성된 복수 개의 돌출부들을 구비하는 나노-마이크로 구조체;
상기 나노-마이크로 구조체 위에 부착되어 나노미터 스케일의 설정 두께의 단층을 형성하고, 단층 내 분자들이 상호 정렬되고, 미생물과 미끄럼 접촉 가능한 설정 유체와 접촉하도록 구성된 자가 조립 단층; 및
상기 자가 조립 단층 위에 형성되고, 미생물과 미끄럼 접촉 가능한 설정 유체를 포함하는 윤활층;
을 포함하고,
상기 복수 개의 돌출부들의 각각은
인공 금속물의 표면에 응집되어 오버행 구조를 형성하고 접착 기능을 수행하기 위한 복수 개의 제1입자들을 구비하는 제1서브구조체; 및
상기 제1서브구조체를 둘러싸는 복수 개의 제2입자들을 구비하는 제2서브구조체;
를 포함하고,
상기 제1서브구조체 및 상기 제2서브구조체는 상기 인공 금속물의 표면에 공기층이 인접하게 형성되고 상기 공기층 위에 액체층이 형성된 상태로부터 상기 공기층과 상기 액체층이 혼합되는 상태로 전이를 촉진하도록 구성되고,
상기 금속 재료는 제1금속 및 제2금속을 포함하고, 상기 제1금속으로 이루어진 인공 금속물의 표면은 플루오르화 수소 수용액으로 습식 식각되고, 상기 제2금속으로 이루어진 인공 금속물의 표면은 플루오르화 수소 수용액 및 질산 수용액의 혼합 용액으로 습식 식각되는 정형외과적인 인공 금속물.
- 제1항에 있어서,
상기 복수 개의 돌출부들은 상기 인공 금속물의 표면으로부터 멀어지는 방향으로 폭이 증가하는 정형외과적인 인공 금속물.
- 삭제
- 제1항에 있어서,
상기 복수 개의 돌출부들은 직경 크기가 50 내지 300 나노미터(nm) 사이이고, 상기 복수 개의 돌출부들 중 인접한 돌출부들 사이의 간격은 100 내지 500 나노미터(nm) 사이인 정형외과적인 인공 금속물.
- 제1항에 있어서,
상기 복수 개의 돌출부들은 직경 크기가 50 내지 300 나노미터(nm) 사이인 돌출부들의 제1세트와 직경 크기가 3 내지 30 마이크로미터(㎛) 사이인 돌출부들의 제2세트로 구성되는 정형외과적인 인공 금속물.
- 제1항에 있어서,
상기 자가 조립 단층은 인공 금속물의 표면의 성질을 소수성으로 변환시키도록 구성된 설정 작용기를 구비하고, 상기 설정 작용기는 플루오르화 실란기인 정형외과적인 인공 금속물.
- 제6항에 있어서,
상기 설정 작용기는, 헵타데카플루오르 - 1, 1, 2, 2 - 테트라하이드로데실트리클로로실란, 트리데카플루오르 - 1, 1, 2, 2 - 테트라하이드로옥틸트리클로로실란, 트리클로로(1H, 1H, 2H, 2H - 퍼플루오르옥틸)실란 및 1H, 1H, 2H, 2H - 퍼플루오르옥틸트리에톡시실란으로 이루어진 군으로부터 선택된 하나 이상인 정형외과적인 인공 금속물.
- 제1항에 있어서,
상기 설정 유체는 점성이 0.1 내지 0.8 cm2/s 사이이고, 밀도가 1500 내지 2000 kg/m3 사이인 정형외과적인 인공 금속물.
- 제1항에 있어서,
상기 설정 유체는, FC-70, Krytox-100, Krytox-103, Flutec PP6, FC-40, FC-72, PF5080, 1 - 브로모퍼플루오르옥탄, Vitreon, FluoroMed APF-215HP, HFE-7500, Krytox FG-40, Krytox-105, Krytox-107 및 퍼플루오로데칼린(Perfluorodecalin)으로 이루어진 군으로부터 선택된 하나 이상인 정형외과적인 인공 금속물.
- 금속 재료로 만들어진 인공 금속물의 표면을 개질하여 나노-마이크로 구조를 형성하는 표면 구조 형성 단계;
상기 나노-마이크로 구조 위에 자가 조립 단층을 형성하는 단층 형성 단계; 및
상기 자가 조립 단층 위에 설정 표면 에너지를 가지는 윤활층을 형성하는 윤활층 형성 단계;
를 포함하고,
상기 금속 재료는 제1금속 및 제2금속을 포함하고,
상기 표면 구조 형성 단계는
상기 제1금속으로 이루어진 상기 인공 금속물의 표면에 플루오르화 수소 수용액으로 습식 식각하고, 상기 제2금속으로 이루어진 상기 인공 금속물의 표면에 플루오르화 수소 수용액 및 질산 수용액의 혼합 용액으로 습식 식각하는 습식 식각 단계; 및
인공 금속물의 표면에 응집되어 오버행 구조를 형성하고 접착 기능을 수행하기 위한 복수 개의 제1입자들을 구비하는 제1서브구조체 및 상기 제1서브구조체를 둘러싸는 복수 개의 제2입자들을 구비하는 제2서브구조체를 각각 포함하는 복수 개의 돌출부들을 형성하고, 상기 인공 금속물의 표면에 공기층이 인접하게 형성되고 상기 공기층 위에 액체층이 형성된 상태로부터 상기 공기층과 상기 액체층이 혼합되는 상태로 전이를 촉진하도록 상기 제1서브구조체 및 상기 제2서브구조체를 형성하는 단계;
를 포함하는 정형외과적인 인공 금속물의 제조 방법. - 삭제
- 삭제
- 삭제
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