KR102789639B1 - 내식 영구 자석 및 자석을 포함하는 혈관 내 혈액 펌프 - Google Patents
내식 영구 자석 및 자석을 포함하는 혈관 내 혈액 펌프 Download PDFInfo
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- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/13—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
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- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/135—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting
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- A61M60/17—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart inside a ventricle, e.g. intraventricular balloon pumps
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- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
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- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/827—Sealings between moving parts
- A61M60/829—Sealings between moving parts having a purge fluid supply
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Abstract
Description
도 1은 혈관 내 혈액 펌프의 예시적인 실시예의 개략적인 종방향 단면도이다.
도 2는 본 발명에 따른 자석 일부의 개략적인 단면도이고, 상기 자석은 단일 레이어 구조를 포함하는 복합 코팅을 갖는다.
도 3은 본 발명에 따른 자석의 일부의 개략적인 단면도이고, 상기 자석은 제1 레이어 구조 및 제2 레이어 구조를 포함하는 복합 코팅을 갖는다.
도 4a는 본 발명에 예시적인 단일 편 자석의 개략적인 도면이다.
도 4b는 도 4a에 도시된 자석의 세부 내용을 도시하는 부분 단면도이다.
도 5는 본 발명에 따른 예시적인 세그먼트화된 자석의 개략적인 평면도이다.
도면은 축척에 따르지 않는다. 도면은 어떤 방식으로 본 발명을 한정하는 것으로 해석되지 않아야 한다.
Claims (27)
- 내식 영구 자석에 있어서,
- 자석 본체, 및
- 상기 자석 본체 상에 제공되고 상기 자석 본체의 표면을 덮는 복합 코팅을 포함하되, 상기 복합 코팅은 상기 자석 본체 상의 제1 레이어 구조, 및 선택적으로 상기 제1 레이어 구조 상의 제2 레이어 구조를 포함하고,
각각의 레이어 구조는
- 무기물 레이어
- 상기 무기물 레이어 상의 링커 레이어(Linker Layer)
- 상기 링커 레이어 상의 폴리(2-클로로-p-크실리렌)(Poly(2-chloro-p-xylylene))으로부터 형성된 유기물 레이어
를 순서대로 포함하되,
- 상기 제1 레이어 구조의 상기 무기물 레이어는, 상기 자석 본체 상의 알루미늄 레이어를 포함하거나, 상기 자석 본체 상의 알루미늄 레이어 및 상기 알루미늄 레이어 상의 산화 알루미늄 레이어를 포함하고,
- 상기 제2 레이어 구조의 상기 무기물 레이어는 알루미늄 레이어 또는 산화 알루미늄 레이어 중 적어도 하나를 포함하고,
- 상기 복합 코팅은 두께가 적어도 50nm인 적어도 하나의 산화 알루미늄 레이어를 가지는,
내식 영구 자석. - 제1항에 있어서,
상기 링커 레이어는 상기 제1 레이어 구조 및 상기 제2 레이어 구조 사이에 위치하는, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 제2 레이어 구조의 상기 무기물 레이어는 산화 알루미늄 레이어인, 내식 영구 자석. - 제1항에 있어서,
상기 자석 본체는 소결된(Sintered) 자석 본체인, 내식 영구 자석. - 제1항에 있어서,
상기 자석 본체가 희토류 금속 철 붕소계 영구 자석인, 내식 영구 자석. - 제1항에 있어서,
상기 자석 본체의 모든 에지(Edge)가 둥근 막대 모양인, 내식 영구 자석. - 제1항에 있어서,
링커는 실란(Silane)으로부터 선택된 상기 링커 레이어 중 적어도 하나를 형성하고, 상기 실란은 티올(Thiol)기, 포스핀(Phosphine)기 또는 다이설파이드(Disulfide)기를 가지는, 내식 영구 자석. - 제7항에 있어서,
상기 링커는, 3-(2-피리딜에틸)티오프로필 트리메톡시실란(3-(2-pyridylethyl)thiopropyl trimethoxysilane), 3-(4-피리딜에틸)티오프로필 트리메톡시실란(3-(4-pyridylethyl)thiopropyl trimethoxysilane), 및 2-(디페닐포스피노)에틸 트리에톡시실란(2-(diphenylphosphino)ethyl triethoxysilane)로부터 선택되는, 내식 영구 자석. - 제1항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 상기 알루미늄 레이어의 두께는 0.5 μm 내지 15 μm, 1 μm 내지 10 μm, 또는 1 μm 내지 5 μm인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 상기 산화 알루미늄 레이어의 두께는 50 nm 내지 200 nm, 또는 80 nm 내지 120 nm인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 상기 알루미늄 레이어 및 상기 산화 알루미늄 레이어의 결합된 두께는 5 μm 내지 15 μm의 범위인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 링커 레이어 중 적어도 하나는 단층 레이어이거나, 상기 링커 레이어의 두께는 20 nm 내지 50 nm의 범위인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 폴리(2-클로로-p-크실리렌)로부터 형성된 상기 유기물 레이어의 두께는 5 μm 내지 20 μm의 범위인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 복합 코팅의 두께는 200 μm이하인, 내식 영구 자석. - 제1항 또는 제2항에 있어서,
상기 복합 코팅의 모든 레이어는 상기 자석 본체의 모든 표면에 걸쳐 완전히 확장되는, 내식 영구 자석. - 내식 영구 자석을 제조하는 방법에 있어서,
- 비자화(Non-magnetized) 자석 본체를 제공하는 단계
- 무기물 레이어를 상기 자석 본체의 표면 상에 증착시키고, 상기 무기물 레이어 상에 링커 레이어(Linker Layer)를 증착시키고, 상기 링커 레이어 상에 폴리(2-클로로-p-크실리렌)(Poly(2-chloro-p-xylylene))의 레이어를 증착시킴으로써, 상기 자석 본체 상에 제1 레이어 구조를 형성하는 단계, 및 선택적으로
- 무기물 레이어를 상기 제1 레이어 구조 상에 증착시키고, 상기 무기물 레이어 상에 링커 레이어를 증착시키고, 상기 링커 레이어 상에 폴리(2-클로로-p-크실리렌)의 레이어를 증착시킴으로써, 상기 제1 레이어 구조 상에 제2 레이어 구조를 형성하는 단계, 및
- 상기 자석 본체를 자화(Magnetize)시키는 단계
를 포함하되,
- 상기 제1 레이어 구조의 상기 무기물 레이어를 증착시키는 단계는, 상기 자석 본체 상에 알루미늄 레이어를 증착시키는 단계를 포함하거나, 상기 자석 본체 상에 알루미늄 레이어를 증착시키고 상기 알루미늄 레이어 상에 산화 알루미늄 레이어를 증착시키는 단계를 포함하고,
- 상기 제2 레이어 구조의 상기 무기물 레이어를 증착시키는 단계는, 상기 제1 레이어 구조 상에 알루미늄 레이어를 증착시키는 단계를 포함하거나, 상기 제1 레이어 구조 상에 산화 알루미늄 레이어를 증착시키는 단계를 포함하거나, 상기 제1 레이어 구조 상에 알루미늄 레이어를 증착시키고 상기 알루미늄 레이어 상에 산화 알루미늄 레이어를 증착시키는 단계를 포함하고,
- 적어도 하나의 알루미늄 레이어는 물리 증착법(Physical Vapor Deposition) 프로세스에 의해 증착되고,
- 적어도 하나의 산화 알루미늄 레이어는 원자 레이어 증착(Atomic Layer Deposition) 프로세스에 의해 적어도 두께가 50nm으로 증착되는,
내식 영구 자석을 제조하는 방법. - 제16항에 있어서,
상기 링커 레이어는 상기 제1 레이어 구조 상에 증착되는, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
산화 알루미늄 레이어는 상기 제2 레이어 구조의 상기 무기물 레이어로서 증착되는, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 자석 본체는 제4항 내지 제6항 중 어느 한 항에서 정의되는 자석 본체인, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 상기 산화 알루미늄 레이어는, 제1 전구체 화합물로서의 AlX3로부터 형성되고 제2 전구체 화합물로서의 H2O로부터 형성되되, 상기 X는 동일하거나 상이할 수 있는 더 낮은 알킬기(Alkyl Group)를 나타내거나, 동일하거나 상이할 수 있는 수소 원자 및 더 낮은 알킬기를 나타내거나, 동일하거나 상이할 수 있는 할로겐(Halogen) 원자를 나타내는, 내식 영구 자석을 제조하는 방법. - 제20항에 있어서,
상기 AIX3는 TMA(Trimethyl Aluminum), TEA(Triethyl Aluminum), TIBA(Triisobutyl Aluminum), DMAlH(Dimethyl Aluminum) 및 AlCl3로 구성되는 군으로부터 선택되는, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 링커 레이어 중 적어도 하나는, 플라즈마(Plasma)를 이용한 물리 증착법에 의해, 또는 플라즈마를 이용하지 않는 물리 증착법에 의해, 또는 용액으로부터, 링커를 적용함으로써 형성되는, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 링커 레이어 중 적어도 하나의 상기 링커는 제7항 또는 제8항에서 정의되는 링커인, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 폴리(2-클로로-p-크실리렌)의 상기 유기물 레이어는 다이클로로[2.2]파라사이클로판(dichloro[2.2]paracyclophane)의 플라즈마 증착에 의해서 형성되는, 내식 영구 자석을 제조하는 방법. - 제16항 또는 제17항에 있어서,
상기 제1 레이어 구조 및/또는 상기 제2 레이어 구조의 상기 레이어의 두께는 제9항에서 정의되는, 내식 영구 자석을 제조하는 방법. - 전기 모터를 포함하는 혈관 내 혈액 펌프에 있어서,
상기 전기 모터는 제1항 또는 제2항에서 청구하는 바와 같은 영구 자석을 포함하는, 혈관 내 혈액 펌프. - 제14항에 있어서,
상기 복합 코팅의 두께는 50 μm이하인, 내식 영구 자석.
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| PCT/EP2019/059968 WO2019214920A1 (en) | 2018-05-08 | 2019-04-17 | Corrosion-resistant permanent magnet and intravascular blood pump comprising the magnet |
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| CN112106155B (zh) | 2023-03-07 |
| US20210098166A1 (en) | 2021-04-01 |
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| US11569015B2 (en) | 2023-01-31 |
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| EP3791415A1 (en) | 2021-03-17 |
| CA3096974A1 (en) | 2019-11-14 |
| EP3567619A1 (en) | 2019-11-13 |
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