KR102232847B1 - 섬유화 무세포 진피 기질 및 생체적합성 고분자를 포함하는 조성물 및 이의 제조 방법 - Google Patents
섬유화 무세포 진피 기질 및 생체적합성 고분자를 포함하는 조성물 및 이의 제조 방법 Download PDFInfo
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- KR102232847B1 KR102232847B1 KR1020197037462A KR20197037462A KR102232847B1 KR 102232847 B1 KR102232847 B1 KR 102232847B1 KR 1020197037462 A KR1020197037462 A KR 1020197037462A KR 20197037462 A KR20197037462 A KR 20197037462A KR 102232847 B1 KR102232847 B1 KR 102232847B1
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Abstract
본 발명의 창상 피복재용 페이스트는 종래의 시트형 무세포 진피 기질의 적용이 어려운 부위나 국소 부위에도 용이하게 적용이 가능하며, 즉시 사용 가능한 ready-to-use 제품으로 사용이 편리하며 심각한 수준의 창상도 수술 없이 빠른 완치가 가능하다.
또한, 장기간 또는 저온 보관시에도 물성의 안정성이 우수하여 국소 부위에 도포 시 발림성이 부드럽고 접착성이 우수하다. 이에 따라, 창상 부위를 외부 오염원으로부터 보호하고 습윤 환경을 유지함으로써 효율적으로 창상 부위의 치료에 도움을 줄 수 있다.
또한, 본 발명에 따른 창상 피복재용 시트는 생체 접착성이 우수하고 오랜 수화(rehydration) 과정에서도 고분자 구조가 잘 풀어지지 않아 전문의 시술 시 형태 유지능이 우수하다. 또한, 상기 시트는 창상 부위 또는 수술 특성에 의해 요구되는 가로, 세로 및 두께 사이즈를 조절할 수 있어 창상 치료가 질적으로 향상 될 수 있다.
Description
도 2는 섬유화된 무세포 진피 기질 입자의 장축 길이와 이의 분포도를 나타낸 것이다.
도 3은 섬유화된 무세포 진피 기질 입자의 단축 길이와 이의 분포도를 나타낸 것이다.
도 4A는 섬유화된 무세포 진피 기질 입자의 장, 단축 비율을 나타낸 것이고, 도4B는 비드형 무세포 진피 기질 입자의 장, 단축 비율을 나타낸 것이며, 도 4C 및 도 4D는 섬유화된 무세포 진피 기질과 비드형 무세포 진피 기질의 현미경 사진이다.
도 5는 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 외형 사진이다.
도 6은 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 점도를 나타낸 것으로, 제조 완료 시점과 저장 3개월 이후의 페이스트 점도를 비교한 것이다.
도 7은 E-beam 멸균 여부 및 멸균 시 온도조건에 따른 페이스트의 압출력을 시간에 따라 측정한 것이다(E-beam 멸균 전, 후 단계에서 45 ℃ 온도반응을 가진 페이스트는 E-beam 멸균을 하지 않은 페이스트보다 낮은 압출력 값을 보였다. 이는, E-beam 멸균을 하지 않은 페이스트는 가교 결합이 일어나지 않아 보다 낮은 수준의 압출력 값을 보일 것으로 예상되는 바에 반하는 결과로, 페이스트 제조 후 상온에서 24시간 이상 저장 시 경화도가 다소 증가되어 압출력 값이 증가한 것으로 해석된다.)
도 8은 E-beam 멸균 여부 및 멸균 시 온도조건에 따른 페이스트의 겔 분율(가교도)을 시간에 따라 측정한 것이다.
도 9는 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 넓고 깊은 창상 부위의 임상적 효과를 나타낸 사진이다.
도 10은 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 족부 창상의 임상적 효과를 나타낸 사진이다.
도 11은 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 만성화된 창상의 임상적 효과를 나타낸 사진이다.
도 12는 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 조직이 절단된 창상의 임상적 효과를 나타낸 사진이다.
도 13은 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트의 난치성 창상의 임상적 효과를 나타낸 사진이다.
도 14는 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트 이용하여 제조한 시트의 외형 사진이다.
도 15는 섬유화된 무세포 진피 기질과 젤라틴을 포함한 페이스트 이용하여 제조한 시트를 saline 용액에서 1시간 수화(rehydration)한 후 물성 및 형태를 관찰한 사진이다.
도 16은 멸균전 열처리에 따른 보관안정성을 점도 측면에서 확인한 것이다.
도 17은 멸균전 열처리에 따른 보관안정성을 겔분율 측면에서 확인한 것이다.
도 18은 부착성 측정을 위한 TPA (texture profile analysis) 실험에 대한 개념도이다.
도 19는 분쇄된 ADM 형사에 따른 부착성을 확인한 결과이다.
Claims (63)
- 섬유화되고, 장축 길이가 500 내지 2,000㎛인 인체 유래 무세포 진피 기질(Acellular Dermal Matrix) 5 내지 20 중량%; 젤라틴 0.5 내지 5 중량%; 및 물 75 내지 94.5 중량%를 포함하는 조성물로서, 상기 조성물은 멸균되고 즉시 사용 가능한(ready-to-use) 것이며, 멸균 후 가교도, 점탄성, 경화도 또는 압출력 값의 변화도가 멸균 전 값에 비해 30% 이하인 것을 특징으로 하는 조성물.
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- 제1항에 있어서, 상기 섬유화된 무세포 진피 기질은 단축과 장축의 비율이 1:30 내지 1:2,000인 것의 비율이 70% 이상인 것을 특징으로 하는 조성물.
- 제1항에 있어서, 상기 젤라틴의 강도가 250 Bloom 이상이며 점도가 30~45 mps이며 pH가 5~6.5인것을 특징으로 하는 조성물.
- 제1항에 있어서, E-beam을 이용한 방사선 멸균 단계를 포함하는 공정을 통해 제조된 것을 특징으로 하는 조성물.
- 제7항에 있어서, 상기 E-beam을 이용한 방사선 멸균 단계 전 및/또는 후에, 30~60 ℃의 열처리 단계를 포함하는 것을 특징으로 하는 조성물.
- 제8항에 있어서, 상기 열처리는 1~180 분간 수행되는 것을 특징으로 하는 조성물.
- 제1항에 있어서, 상기 조성물은 페이스트(paste) 형태 또는 시트(sheet) 형태인 것을 특징으로 하는 조성물.
- 제10항에 있어서, 상기 시트는 페이스트 형태의 조성물을 금형에 도포 및 동결 건조하여 4 내지 8% 함량의 수분을 포함하는 것을 특징으로 하는 조성물.
- 제1항에 있어서, 상기 조성물은 약제학적으로 사용되는 항균제, 부형제 및 첨가제를 더 포함하는 것을 특징으로 하는 조성물.
- 제1항에 있어서, 상기 조성물을 창상 피복재, 접착제, 수술용 및 의료용 장치, 인공 피부, 붕대, 발포제, 필름, 흡착방지제 및 이식재로 구성되는 군에서 선택되는 용도로 사용하는 것을 특징으로 하는 조성물.
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KR20230008422A (ko) * | 2021-07-07 | 2023-01-16 | (주)시지바이오 | 섬유화 무세포 진피 기질을 이용한 조성물 및 그 제조방법 |
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KR102719780B1 (ko) * | 2024-03-06 | 2024-10-21 | (주)시지바이오 | 무세포 진피 기질을 포함하는 저압출 조성물 및 그 제조방법 |
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