KR20180014931A - 미소막 간격체 및 미소막 간격체-유착방지제 혼합물 - Google Patents
미소막 간격체 및 미소막 간격체-유착방지제 혼합물 Download PDFInfo
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Abstract
과제해결수단: 카복시메틸셀룰로스와 히알루론산 혼합용액에 가교제를 가하여 가교반응한 후 두께 0.1㎛~1㎜, 직경 1~3 ㎜의 유착방지제 첨가용 미소막 간격체 (membrane spacer)를 제조하였다. 상기 미소막 간격체는 유착방지제 1㎖당 30~60개를 가하고 혼합하여 사용하며, 실험 결과, 유착방지, 섬유화 억제, 신생혈관 억제, 항염증 효과가 시판 유착방지제와 유사하거나 좀 더 우수하였으며, 수술 부위에 적용시 흘러내림 방지 효과가 우수하였다.
Description
도 2는 본 발명의 미소막 간격체를 다량 제조하기 위한 주형이다.
도 3은 유착반응의 과정인 염증반응 확인을 위해 CD34와 ED1으로 웨스턴 블롯한 결과이다.
도 4는 척추 수술부위와 척수경질막 사이의 유착을 확인하기 위해 MMP-2, MMP-9으로 이 부위의 조직에 대해 RT-PCR을 진행한 결과이다.
도 5와 도 6은 각종 염증인자 확인을 위해 웨스턴 블롯 및 RT-PCR을 수행한 결과이다.
도 7은 염증도를 확인하기 위해 H&E 염색을 수행한 결과이다.
도 8은 척수경질막의 섬유질 형성을 확인하기 위해 Masson trichrome 염색을 수행한 결과이다. 청색 부분은 섬유질을 나타낸다.
도 9는 염증도를 평가하기 위해 COX-2 항체로 면역조직화학 염색을 수행한 결과이다.
상기 도 7~도 9에서 A: 샴군, B: 척추 수술 후 아무 것도 처리하지 않은 대조군, C: 본 발명의 척추 유착방지제 겔 + 미소막 간격체 (이하 "WHP"와 혼용함) 혼합 겔 처리군, D: 시판 Medishield 항유착 겔 처리군을 말한다.
도 10은 대조군 및 실험군에 대하여 흐름도를 측정한 결과를 그래프로 나타낸 것이다.
구분 | 농도 | 삼투압 mOsm/kg |
흐름도 | 막 침강속도 |
대조군: 유착방지제 |
2% CMC + 1% PEG | 646 | 0.5초 | - |
3% CMC + 2% PEG | 700 | 1초 | - | |
5% CMC + 3% PEG | 792 | 9초 | 약 30분 | |
실험군: 미소막 간격체 + 유착방지제 |
미소막 간격체 (1% HA + 1% CMC) + 유착방지제 (5% CMC + 3% PEG) |
606 | 7초 | 약 15분 |
미소막 간격체 (1% HA + 0.5% CMC) + 유착방지제 (5% CMC + 3% PEG) |
753 | 15초 | 약 40분 |
시료 | 점수 |
대조군 (샴군) | 0 |
유착 유발 수술 후 비처리군 | 4 |
유착 유발 수술 후 유착방지제와 미소막 간격체를 혼합한 혼합물 처리군 |
1 |
유착 유발 수술 후 시판 유착방지제 처리군 | 1 |
시간(분) | ||
횟수 | 대조군 | 실험군 |
1 | 3.6 | 6.1 |
2 | 4.2 | 6.5 |
3 | 4.5 | 5.8 |
4 | 3.7 | 6.8 |
5 | 3.5 | 6.7 |
6 | 3.1 | 6.2 |
7 | 4.2 | 5.5 |
8 | 4.6 | 5.9 |
9 | 3.5 | 6.3 |
10 | 3.7 | 6.6 |
평균 | 3.86 | 6.24 |
Claims (9)
- 카복시메틸셀룰로스와 히알루론산 혼합용액에 가교제를 가하여 가교반응한 후 제조되는 두께 0.1㎛~1㎜, 직경 1~3 ㎜의 유착방지제 첨가용 미소막 간격체.
- 청구항 1에 있어서,
상기 카복시메틸셀룰로스와 히알루론산 혼합용액은 카복시메틸셀룰로스 0.1~5%(w/v) 및 히알루론산 0.5~3%(w/v)임을 특징으로 하는 유착방지제 첨가용 미소막 간격체.
- 청구항 1에 있어서,
상기 미소막 간격체는 유착방지제 1㎖당 30~60개를 가하고 혼합하여 사용하는 것임을 특징으로 하는 유착방지제 첨가용 미소막 간격체.
- 카복시메틸셀룰로스와 히알루론산 혼합용액에 가교제를 가하여 가교반응한 후 제조되는 두께 0.1㎛~1㎜, 직경 1~3 ㎜의 유착방지제 첨가용 미소막 간격체와 유착방지제를 혼합한 미소막 간격체-유착방지제 혼합물.
- 청구항 4에 있어서,
상기 미소막 간격체는 유착방지제 1㎖당 30~60개를 가하고 혼합하여 사용하는 것임을 특징으로 하는 미소막 간격체-유착방지제 혼합물.
- 청구항 4에 있어서,
상기 유착방지제는 크림형, 겔형 및 액상 중 선택된 1종임을 특징으로 하는 미소막 간격체-유착방지제 혼합물.
- 청구항 4에 있어서,
상기 카복시메틸셀룰로스와 히알루론산 혼합용액은 카복시메틸셀룰로스 0.1~5%(w/v) 및 히알루론산 0.5~3%(w/v)임을 특징으로 하는 미소막 간격체-유착방지제 혼합물.
- 청구항 4에 있어서,
상기 유착방지제는 카복시메틸셀룰로스와 폴리에틸렌글라이콜 혼합용액으로부터 제조됨을 특징으로 하는 미소막 간격체-유착방지제 혼합물.
- 청구항 8에 있어서,
상기 카복시메틸셀룰로스와 폴리에틸렌글라이콜 혼합용액은 카복시메틸셀룰로스 3~7% (w/v)와 폴리에틸렌글라이콜 1~5% (w/v)임을 특징으로 하는 미소막 간격체-유착방지제 혼합물.
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