KR101832716B1 - 정량 투여가 가능하며 약물 투입 속도 조절이 가능한 미세바늘 구조체 및 제조방법 - Google Patents
정량 투여가 가능하며 약물 투입 속도 조절이 가능한 미세바늘 구조체 및 제조방법 Download PDFInfo
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- KR101832716B1 KR101832716B1 KR1020160067712A KR20160067712A KR101832716B1 KR 101832716 B1 KR101832716 B1 KR 101832716B1 KR 1020160067712 A KR1020160067712 A KR 1020160067712A KR 20160067712 A KR20160067712 A KR 20160067712A KR 101832716 B1 KR101832716 B1 KR 101832716B1
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Abstract
상기 지지돌기는 생분해 속도가 상대적으로 빠른 물질이고, 상기 약물팁은 생분해 속도가 상대적으로 느린 물질인 미세 바늘 구조체를 제공한다.
Description
도 2는 본 발명의 제1실시예에 따른 미세 바늘 구조체의 단면도이다.
도 3은 본 발명의 제2실시예에 따른 미세 바늘 구조체의 사시도이다.
도 4는 본 발명의 제2실시예에 따른 미세 바늘 구조체의 단면도이다.
도 5는 본 발명의 실시예에 따른 미세 바늘 구조체의 다른 형태의 단면을 나타낸 도면이다.
도 6은 본 발명의 제1실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
도 7은 본 발명의 제2실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
도 8은 본 발명의 제3실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
도 9는 본 발명에 따른 미세 바늘 구조체를 제조하여 촬영한 사진이다.
도 10은 본 발명의 제4실시예에 따른 미세 바늘 구조체의 사시도이다.
도 11은 본 발명의 제4실시예에 따른 미세 바늘 구조체의 단면도이다.
도 12는 본 발명의 제4실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
도 13은 본 발명의 제5실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
도 14는 본 발명의 제6실시예에 따른 미세 바늘 구조체의 제조방법을 나타낸 공정도이다.
20 : 시트 용액
50 : 몰드
51, 55, 61 : 돌출부
51a, 55a, 61a : 수축공
52 : 제1몰드
54 : 몰드
60 : 제2몰드
70 : 스퀴즈금형
120 : 점착 시트
140 : 돌기 시트
142 : 배면
144 : 접촉면
146 : 지지돌기
146a : 하부지지돌기
146b : 상부지지돌기
147 : 목부
148 : 오목홈
160 : 약물팁
Claims (23)
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- 피부에 접촉하는 접촉면에서 돌출형성되며 피부에 삽인되어 용해되는 생분해성 물질로 이루어지며 상대적으로 단면적이 좁은 목부를 구비하는 지지돌기를 포함하는 돌기 시트와, 상기 지지돌기에 부착되며 피부에 삽입되어 용해되는 생분해성 물질로 이루어지는 약물팁을 포함하는 미세 바늘 구조체를 제조하기 위한 방법에 있어서,
상기 미세 바늘 구조체의 외관형상과 동일한 음각의 주형을 구비하며 탄성재질로 이루어지는 몰드 마련 단계;
상기 몰드의 주형에 약물팁을 형성하며 생분해성 물질 용액인 약물액을 주입하고 경화시켜 약물팁을 형성하는 단계;
상기 약물팁이 형성된 상기 몰드의 주형에 생분해 속도가 상대적으로 빠른 생분해성 물질 용액인 돌기 시트 용액을 주입하고 경화시켜 돌기 시트를 형성하는 단계; 및
상기 몰드로부터 미세 바늘 구조체를 분리하는 단계;를 포함하며,
상기 몰드는 상기 지지돌기의 목부에 해당하는 부분에 돌출부를 구비하고, 상기 돌출부의 내부에 수축공이 구비되는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 피부에 접촉하는 접촉면에서 돌출형성되며 피부에 삽인되어 용해되는 생분해성 물질로 이루어지며 상대적으로 단면적이 좁은 목부를 구비하는 지지돌기를 포함하는 돌기 시트와, 상기 지지돌기에 부착되며 피부에 삽입되어 용해되는 생분해성 물질로 이루어지는 약물팁을 포함하는 미세 바늘 구조체를 제조하기 위한 방법에 있어서,
상기 약물팁의 형상에 대응하는 음각의 주형을 구비하는 제1몰드와, 상기 지지돌기의 형상에 대응하는 관통공을 구비하며 탄성재질로 이루어지는 제2몰드를 마련하는 단계;
상기 제1몰드의 주형에 약물팁을 형성하는 생분해성 물질 용액인 약물액을 도포하고 경화시키는 단계;
상기 제1몰드에 제2몰드를 정렬하여 부착하고, 상기 제2몰드에 생분해 속도가 상대적으로 빠른 생분해성 물질 용액인 돌기 시트 용액을 도포하고 경화시키는 단계; 및
상기 제1몰드 및 상기 제2몰드로부터 미세 바늘 구조체를 분리하는 단계;를 포함하며,
상기 제2몰드는 상기 지지돌기의 목부에 해당하는 부분에 돌출부를 구비하고, 상기 돌출부의 내부에 수축공이 구비되는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 피부에 접촉하는 접촉면에서 돌출형성되며 피부에 삽입되어 용해되는 생분해성 물질로 이루어지며 상대적으로 단면적이 좁은 목부를 구비하는 지지돌기를 포함하는 돌기 시트와, 상기 지지돌기에 부착되며 피부에 삽입되어 용해되는 생분해성 물질로 이루어지는 약물팁을 포함하는 미세 바늘 구조체를 제조하기 위한 방법에 있어서,
상기 약물팁과 상기 지지돌기의 형상에 대응하는 음각의 주형을 구비하며 탄성재질로 이루어지는 몰드와, 상기 지지돌기의 형상에 대응하는 스퀴즈돌기를 구비하는 스퀴즈금형을 마련하는 단계;
상기 몰드의 주형에 약물팁을 형성하는 생분해성 물질 용액인 약물액을 도포하고, 상기 스퀴즈금형으로 가압하여 약물액의 도포량을 조절하는 단계;
상기 스퀴즈금형을 제거하고 상기 몰드의 주형에 생분해 속도가 상대적으로 빠른 생분해성 물질 용액인 돌기 시트 용액을 주입하고 경화시키는 단계; 및
상기 몰드로부터 미세 바늘 구조체를 분리하는 단계;를 포함하며,
상기 몰드는 상기 지지돌기의 목부에 해당하는 부분에 돌출부를 구비하고, 상기 돌출부의 내부에 수축공이 구비되는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 삭제
- 제 16 항 내지 제 18 항 중 어느 하나의 항에 있어서,
미세 바늘 구조체를 분리하는 단계는
상기 수축공에 음압을 부여하여, 상기 돌출부가 수축되도록 하는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 제 16 항 내지 제 18 항 중 어느 하나의 항에 있어서,
상기 약물액과 상기 돌기 시트 용액은 히알루론산 중합체를 포함하는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 제 21 항에 있어서,
상기 돌기 시트 용액에 포함되는 히알루론산 중합체는 분자량 10만 미만이고,
상기 약물액에 포함되는 히알루론산 중합체는 분자량이 10만 이상인 것을 특징으로 하는 미세 바늘 구조체 제조방법.
- 제 16 항 내지 제 18 항 중 어느 하나의 항에 있어서,
미세 바늘 구조체를 분리하는 단계의 이전에,
상기 돌기 시트의 배면에 점착 시트를 부착하는 단계를 더 포함하는 것을 특징으로 하는 미세 바늘 구조체 제조방법.
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