KR20120052968A - 조직 공학용 장치 및 방법 - Google Patents
조직 공학용 장치 및 방법 Download PDFInfo
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- KR20120052968A KR20120052968A KR1020127003354A KR20127003354A KR20120052968A KR 20120052968 A KR20120052968 A KR 20120052968A KR 1020127003354 A KR1020127003354 A KR 1020127003354A KR 20127003354 A KR20127003354 A KR 20127003354A KR 20120052968 A KR20120052968 A KR 20120052968A
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/4465—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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Abstract
Description
도 1은 본 발명에 따른 생리활성 조직 스캐폴드의 실시예를 보여주는 약 1000배 확대 비율의 광학 현미경 사진이다.
도 2는 도 1의 생리활성 조직 스캐폴드를 형성하기 위한 본 발명에 따른 방법의 실시예의 흐름도이다.
도 3은 도 2 발명의 방법에 따른 경화 단계의 실시예의 흐름도이다.
도 4는 본 발명의 방법에 따라 제작된 대상물의 실시예의 개략적인 묘사이다.
도 5는 본 발명에 따른 방법 중 휘발성 성분 제거 단계의 완료에 따른 도 4의 대상물의 개략적인 묘사이다.
도 6은 본 발명에 따른 방법 중 결합 형성 단계의 완료에 따른 도 5의 대상물의 개략적인 묘사이다.
도 7은 본 발명의 재흡수성 조직 스캐폴드의 다양한 실시예를 공지된 표본과 비교한 비교 분석 그래프이다.
도 8은 척추 이식편으로 제조된 본 발명에 따른 생리활성 조직 스캐폴드의 측면도이다.
도 9는 척추사이 공간 내에 이식된 도 8에 따른 척추 이식편을 갖는 척추 부분의 측면 투시도이다.
도 10은 골절술 쇄기형으로 제조된 본 발명에 따른 생리활성 조직 스캐폴드의 등각도(isometric view)를 보여주는 개략적인 그림이다.
도 11은 뼈 내의 골절술 개방부 안으로 삽입될 수 있도록 구성된 도 10의 골절술 쇄기형의 분해도를 도시하는 개략적인 그림이다.
도 12는 본 발명에 따른 방법의 실시예 중 경화 단계의 대표적인 열 프로파일의 그래프이다.
이미 논의되었듯이, 여기에 나열된 상기 도면이 실시예를 개시하지만, 다른 실시예도 고려된다. 본 공개문헌은 묘사의 방식으로 예시적인 실시예를 나타내며, 이를 제한하지 않는다. 다양한 다른 변형 및 실시예는 여기 개시된 실시예의 원리의 범위 및 사상 내에서 당해 분야의 통상의 기술자에 의해 창안될 수 있다.
| 기공 형성제 | 연소 온도 |
| 활성 탄소 | 621℃ |
| 편상 흑연 | 603℃ |
| HPMC | 375℃ |
| PMMa | 346℃ |
| 목분 | 317℃ |
| 옥수수 전분 | 292℃ |
Claims (18)
- 인공 뼈 보철을 제작하는 방법으로,
기공 형성제 및 소성(plastically) 성형성 뱃지(batch)를 제공하기 위한 액체를 생리활성 섬유 조직과 혼합하는 단계;
생리활성 섬유를 기공 형성제로 분산시켜서 서로 얽혀지고(intertangled) 겹쳐진 생리활성 섬유의 균일한 덩어리(mass)의 성형성 뱃지를 제공하기 위해 상기 성형성 뱃지를 니딩(kneading)하는 단계;
성형된 형태를 제공하기 위하여 성형성 뱃지를 소정의 형상으로 성형하는 단계;
상기 성형된 형태 내의 액체를 제거하기 위해 건조하는 단계;
서로 얽혀지고 겹쳐진 생리활성 유리 섬유 사이에 결합을 형성하기 위하여 기공 형성제의 발열 반응을 이용하는, 결합 형성 온도로 성형된 형태를 가열하는 단계를 포함하는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 생리활성 섬유는 실투 온도를 가지며, 상기 기공 형성제의 발열 반응은 상기 성형된 형태가 실투 온도 미만인 경우에 개시되며, 상기 기공 형성제의 발열 반응은 상기 성형된 형태가 실투 온도에 도달하기 이전에 완료되는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 생리활성 섬유는 실투 온도를 가지면, 상기 기공 형성제의 발열 반응은 상기 성형된 형태가 실투 온도 미만인 경우에 개시되며, 상기 기공 형성제의 발열 반응은 상기 성형된 형태가 실투 온도에 도달한 이후에 완료되는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 성형된 형태를 결합 형서 온도로 가열하는 단계는 공기-제거 가마에서 수행되는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 기공 형성제는 활성 탄소, 편상 흑연, HPMC, PMMA, 목분 및 옥수수 전분으로 구성된 리스트로부터 선택되는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 혼합 단계는 바인더를 더 포함하는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 6 항에 있어서,
상기 혼합 단계는 결합제를 더 포함하는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 혼합 단계는 결합제를 더 포함하는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 제 1 항에 있어서,
상기 가열 단계 이후에 인공 뼈 보철을 어닐링하는 단계를 더 포함하는 것을 특징으로 하는 인공 뼈 보철을 제작하는 방법. - 서로 얽혀진 생리활성 유리 섬유;
강성 3차원 조직 스캐폴드를 형성하도록 서로 얽혀진 생리활성 유리 섬유 사이의 결합;
서로 얽혀진 생리활성 섬유 내에 산재된 휘발성 성분 및 결합의 형성 과정에서 제거됨으로써 기결정된 강성 3차원 조직 스캐폴드 내의 기공 공간; 및
휘발성 성분의 발열 반응을 이용하여 형성된 결합을 포함하는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 휘발성 성분은 기공 형성제를 포함하는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 기공 공간은 인공 뼈 보철 중의 약 40% 내지 약 85%의 다공성을 형성하는 것을 특징으로 인공 뼈 보철. - 제 10 항에 있어서,
상기 기공 공간은 약 10 μm 내지 약 500 μm의 기공 크기를 갖는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 기공 크기는 바이모달(bi-modal) 크기 분포를 갖는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
서로 얽혀진 생리활성 유리 섬유는 탄산나트륨, 탄산칼슘, 오산화인, 약 45 몰% 내지 약 60 몰%의 실리카, 및 약 2 내지 약 10의 인산염에 대한 칼슘의 몰비를 포함하는 조성물을 갖는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 서로 얽혀진 생리활성 유리 섬유는 13-93 유리 섬유를 포함하는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 서로 얽혀진 생리활성 섬유는 다른 조성물을 갖는 생리활성 유리 섬유의 혼합물을 포함하는 것을 특징으로 하는 인공 뼈 보철. - 제 10 항에 있어서,
상기 서로 얽혀진 생리활성 섬유는 약 1 μm 내지 약 200 μm의 직경을 갖는 것을 특징으로 하는 인공 뼈 보철.
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| US61/234,768 | 2009-08-18 | ||
| PCT/US2010/041333 WO2011005935A2 (en) | 2009-07-10 | 2010-07-08 | Devices and methods for tissue engineering |
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| KR20240029947A (ko) | 2022-08-29 | 2024-03-07 | (주)디에이치에스 | 파우치 타입의 이차전지용 가압유지장치 |
| KR20240029942A (ko) | 2022-08-29 | 2024-03-07 | (주)디에이치에스 | 파우치 타입의 이차전지용 가압장치 |
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