KR20170063882A - 비-유동성 유체 내의 입자의 음향 영동 정화 - Google Patents
비-유동성 유체 내의 입자의 음향 영동 정화 Download PDFInfo
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Abstract
Description
도 1은 본 개시 내용의 음향 영동 디바이스의 일 예시적인 실시예의 사시도이다. 일회용 컨테이너 (예컨대, 플라스틱 백)는 하나 이상의 초음파 변환기들을 포함하는 재사용 가능한 분리 유닛과 함께 작동한다.
도 2는 컨테이너에 대해 분리 유닛을 이동하기 위한 지지 구조체를 포함하는, 본 개시 내용의 음향 영동 디바이스의 또 다른 예시적인 실시예의 단면도이다.
도 3은 지지 구조체를 갖는 본 개시 내용의 또 다른 예시적인 음향 영동 디바이스의 사시도이다. 여기서, 분리 유닛은 그의 벽들 내에서 지지 구조체를 포함하고, 지지 구조체는 축을 따라 초음파 변환기/반사기 쌍만을 병진 운동시키는 반면, 분리 유닛의 벽들은 컨테이너에 대해 정적 위치에 있게 된다.
도 4는 종래 초음파 변환기의 단면도이다.
도 5는 본 개시 내용의 초음파 변환기의 단면도이다. 공극은 상기 변환기에 존재하며, 후면 층 (backing layer) 또는 웨어 플레이트 (wear plate)에는 없다.
도 6은 본 개시 내용의 초음파 변환기의 단면도이다. 공극은 상기 변환기에 존재하며, 후면 층 및 웨어 플레이트에도 존재한다.
도 7은 음향 방사력 (acoustic radiation force), 중력/부력, 스토케스 (Stokes)의 항력(drag force)과 입자 크기의 관계를 도시하는 그래프이다. 수평축은 미크론 (μm) 단위이고 수직축은 뉴턴 (N) 단위이다.
도 8은 상이한 주파수들에서 구동되는 정사각형 변환기에 대한 주파수 대 전기 임피던스 진폭의 그래프이다.
도 9a는 유체 유동에 수직인 방향으로부터 도 8의 피크 진폭들 중 7 개에 대한 포집 라인 구성들을 도시한다.
도 9b는 분리기를 도시하는 사시도이다. 포집 라인들이 도시된다.
도 9c는 도 9b의 변환기에 수직인, 분리기의 측면으로부터의 도면으로서, 입자들이 캡쳐되는 정재파의 포집 노드들을 도시한다.
도 9d는 도 9b에 도시된 바와 같이 화살표 (116)를 따라 포집 라인 구성들을 도시한, 변환기의 면을 관통한 도면이다.
도 10은 BNC 케이블에 의해 전달된 전압 신호에 의해 구동되는 초음파 변환기를 가진 분리 유닛 내에 부분적으로 배치된 플라스틱 백 (즉, 컨테이너)을 도시한, 본 개시 내용의 음향 영동 디바이스의 도면이다.
도 11은 본 개시 내용의 또 다른 예시적인 음향 영동 디바이스의 개략도이다. 일회용 가요성 플라스틱 백은 내장형 초음파 변환기를 포함한다.
도 12는 도 11의 백의 단면도로서, 백 내에 내장된 변환기를 도시한다.
Claims (20)
- 별개 볼륨 (discrete volume)의 유체를 정화하는 음향 영동 디바이스 (acoustophoretic device)에 있어서,
실질적으로 음향적인 (acoustically) 투명 컨테이너; 및
상기 컨테이너를 둘러싸며, 적어도 하나의 벽 및 상기 컨테이너가 삽입될 수 있는 제 1 개구에 의해 정의되는 분리 유닛 - 상기 분리 유닛은 음향 정재파 (acoustic standing wave)를 생성하도록 전압 신호에 의해 구동되는 압전 재료를 가진 적어도 하나의 초음파 변환기를 포함함;을 포함하는, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 컨테이너는 플라스틱, 유리, 폴리카보네이트, 저-밀도 폴리에틸렌 및 고-밀도 폴리에틸렌으로 구성된 군으로부터 선택된 재료를 포함하는, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 음향 정재파는 평면의 일-차원 음향 정재파인, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 음향 정재파는 다-차원 음향 정재파인, 음향 영동 디바이스. - 청구항 4에 있어서,
상기 다-차원 음향 정재파는 크기 차수 (order of magnitude)가 서로 동일한 축 방향 힘 성분, 및 측 방향 힘 성분을 가진 음향 방사력을 초래하는, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 컨테이너 및 상기 적어도 하나의 초음파 변화기를 서로에 대해 이동시키는 지지 구조체를 더 포함하는, 음향 영동 디바이스. - 청구항 6에 있어서,
상기 지지 구조체는 상기 분리 유닛의 하나의 벽을 따라 상기 적어도 하나의 초음파 변환기를 이동시키는, 음향 영동 디바이스. - 청구항 6에 있어서,
상기 적어도 하나의 초음파 변환기는 상기 분리 유닛의 적어도 하나의 벽 상에 고정 위치되며, 상기 분리 유닛은 상기 컨테이너에 대해 이동되는, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 분리 유닛은 상기 적어도 하나의 벽과 상기 컨테이너 사이에 간극 공간 (interstitial space)을 제공하도록 크기 조정되는, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 적어도 하나의 초음파 변환기는 상기 분리 유닛의 공통 벽 상에 위치되거나 또는 서로 대향하여 위치된 복수의 초음파 변환기인, 음향 영동 디바이스. - 청구항 1에 있어서,
상기 적어도 하나의 초음파 변환기를 대향하여 상기 분리 유닛의 벽 상에 위치된 반사기를 더 포함하는, 음향 영동 디바이스. - 제 2 유체 또는 미립자를 호스트 유체로부터 분리시키는 방법에 있어서,
상기 호스트 유체 및 상기 제 2 유체 또는 미립자의 혼합물의 별개 볼륨을 함유하는 실질적으로 음향적인 투명 컨테이너를 분리 유닛의 제 1 개구 내로 위치시키는 단계 - 상기 분리 유닛은 상기 분리 유닛에서 음향 정재파를 생성하도록 전압 신호에 의해 구동되는 압전 재료를 가진 적어도 하나의 초음파 변환기 및 적어도 하나의 벽을 포함함; 및
상기 제 2 유체 또는 미립자가 상기 음향 정재파에 포집되어, 함께 덩어리화 (clump), 무리화 (cluster), 뭉침화 (agglomerate), 또는 합체화 (coalesce) 되고, 부력 또는 중력으로 인해 상기 호스트 유체로부터 연속적으로 상승 또는 침강되도록, 상기 컨테이너에 상기 음향 정재파를 생성하는 적어도 하나의 초음파 변환기를 구동시키는 단계;를 포함하는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 12에 있어서,
상기 미립자는 중국 햄스터 난소 (Chinese hamster ovary, CHO) 세포들, NS0 하이브리도마 세포들 (hybridoma cells), 아기 햄스터 신장 (baby hamster kidney, BHK) 세포들, 곤충 세포들, 또는 인간 세포들인, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 12에 있어서,
상기 적어도 하나의 초음파 변환기를 구동시키는 단계 전에, 상기 적어도 하나의 벽과 상기 컨테이너 사이의 간극 공간에 유체를 위치시키는 단계를 더 포함하는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 12에 있어서,
상기 컨테이너의 하단 말단부로부터 상기 컨테이너의 상단 말단부까지 비-유동성 혼합물을 스위핑 (sweep)하기 위해, 또는 상기 컨테이너의 상단 말단부로부터 상기 컨테이너의 하단 말단부까지 비-유동성 혼합물을 스위핑하기 위해, 상기 컨테이너 및 상기 분리 유닛을 서로에 대해 이동시키는 단계를 더 포함하는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 15에 있어서,
상기 컨테이너 및 상기 분리 유닛은 약 0.1 밀리미터/초 내지 약 1 센티미터/초의 선형 속도로 서로에 대해 이동되는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 15에 있어서,
상기 적어도 하나의 초음파 변환기는:
상부 말단, 하부 말단, 및 내부 볼륨을 가진 하우징; 및
상기 하우징의 하부 말단에서 노출된 외부 표면 및 내부 표면을 가진 압전 요소 - 상기 압전 요소는 전압 신호에 의해 구동될 시에 진동할 수 있음;를 포함하는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 17에 있어서,
상기 압전 요소의 내부 표면은 후면 층과 접촉하며, 상기 후면 층은 실질적으로 음향적인 투명 재료로 제조되는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 청구항 17에 있어서,
상기 적어도 하나의 초음파 변환기는 적어도 상기 분리 유닛의 공통 벽 상에 위치된 제 1 초음파 변환기 및 제 2 초음파 변환기이고;
상기 제 1 초음파 변환기는 평면의 음향 정재파를 형성하기 위해 구동되며; 그리고
상기 제 2 초음파 변환기는 다-차원 음향 정재파를 형성하기 위해 구동되는, 제 2 유체 또는 미립자와 호스트 유체 분리 방법. - 비-유동성 유체를 정화하는 음향 영동 디바이스에 있어서,
외부 표면, 및 상기 외부 표면에 의해 경계가 정해진 내부 볼륨을 포함한 일회용 분리 백; 및
상기 분리 백의 외부 표면의 내부에 적어도 부분적으로 배치된 초음파 변환기 - 상기 초음파 변환기는 상기 일회용 분리 백의 내부 볼륨 내에서 음향 정재파를 생성하도록 전압 신호에 의해 구동되는 압전 재료를 가짐;를 포함하는, 음향 영동 디바이스.
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-
2015
- 2015-09-30 CN CN201580053113.0A patent/CN106794393A/zh active Pending
- 2015-09-30 EP EP15847217.5A patent/EP3200892B1/en active Active
- 2015-09-30 CA CA2961911A patent/CA2961911C/en active Active
- 2015-09-30 SG SG11201702489PA patent/SG11201702489PA/en unknown
- 2015-09-30 WO PCT/US2015/053200 patent/WO2016054192A1/en not_active Ceased
- 2015-09-30 US US14/870,952 patent/US9675906B2/en active Active
- 2015-09-30 KR KR1020177011658A patent/KR20170063882A/ko not_active Ceased
Also Published As
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|---|---|
| EP3200892A4 (en) | 2018-11-14 |
| US9675906B2 (en) | 2017-06-13 |
| EP3200892A1 (en) | 2017-08-09 |
| EP3200892B1 (en) | 2022-08-03 |
| CN106794393A (zh) | 2017-05-31 |
| SG11201702489PA (en) | 2017-04-27 |
| US20160089620A1 (en) | 2016-03-31 |
| WO2016054192A1 (en) | 2016-04-07 |
| CA2961911A1 (en) | 2016-04-07 |
| CA2961911C (en) | 2022-09-13 |
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