KR20230162995A - 혈액 펌프 - Google Patents
혈액 펌프 Download PDFInfo
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- KR20230162995A KR20230162995A KR1020237039244A KR20237039244A KR20230162995A KR 20230162995 A KR20230162995 A KR 20230162995A KR 1020237039244 A KR1020237039244 A KR 1020237039244A KR 20237039244 A KR20237039244 A KR 20237039244A KR 20230162995 A KR20230162995 A KR 20230162995A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/211—Non-positive displacement blood pumps using a jet, venturi or entrainment effect for pumping the blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
- A61M60/117—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body for assisting the heart, e.g. transcutaneous or external ventricular assist devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- 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
- A61M60/135—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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- 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
- A61M60/148—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 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
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- A—HUMAN NECESSITIES
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/221—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having both radial and axial components, e.g. mixed flow pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
- A61M60/232—Centrifugal pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/237—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/408—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable
- A61M60/411—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor
- A61M60/414—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/422—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/804—Impellers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/804—Impellers
- A61M60/806—Vanes or blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/82—Magnetic bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/824—Hydrodynamic or fluid film bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/825—Contact bearings, e.g. ball-and-cup or pivot bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Transplantation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
도 1은 심장외 사용을 위한 본 발명에 따른 혈액 펌프의 단면도를 도시한다.
도 2는 카테터 펌프로서 설계된 본 발명에 따른 혈액 펌프의 단면도를 도시한다.
도 3은 임펠러의 사시도를 도시한다.
도 4a 내지 도 4d는 임펠러의 일부의 상이한 도면을 도시한다.
도 5a 및 도 5b는 임펠러의 다른 실시예를 도시한다.
도 6a 및 도 6b는 임펠러의 일부의 다른 실시예를 도시한다.
도 7은 다른 실시예에 따른 혈액 펌프의 일부의 단면도를 도시한다.
도 8은 다른 실시예에 따른 임펠러의 일부의 단면도를 도시한다.
도 9는 다른 실시예에 따른 임펠러의 일부의 단면도를 도시한다.
도 10은 또 다른 실시예에 따른 임펠러의 일부의 단면도를 도시한다.
도 11은 다른 실시예에 따른 혈액 펌프의 일부의 단면도를 도시한다.
Claims (16)
- 혈액 펌프(1)로서,
통로(7)에 의해 연결된 혈류 입구(5) 및 혈류 출구(6)를 갖는 펌프 케이싱(2), 및
상기 펌프 케이싱(2) 내에서 회전축(9)을 중심으로 회전 가능하게 배치된 임펠러(3) - 상기 임펠러(2)에는 혈액을 상기 통로(7)를 따라 상기 혈류 입구(5)부터 상기 혈류 출구(6)로 이송하기 위한 크기 및 형상을 갖는 블레이드(4)가 제공되며, 상기 임펠러(3)는 상기 펌프 케이싱(2)의 베어링 표면과 마주하는 상기 임펠러(3)의 베어링 표면을 포함하는 적어도 하나의 접촉식 베어링(20)에 의해 상기 펌프 케이싱(2) 내에 회전 가능하게 지지됨 - 를 포함하며,
적어도 하나의 세척 채널(43')은 상기 임펠러(3)를 통해 연장하고 제1 개구(44')를 통해 상기 통로(7)와 그리고 제2 개구를 통해 상기 베어링(20)과 유체 연결되며, 상기 세척 채널(43')은 상기 세척 채널(43')을 통해 상기 베어링(20)을 향해 혈액을 펌핑하기 위한 2차 펌프와 작동 가능하게 연관되며,
상기 2차 펌프는 상기 임펠러(3)를 통해 대각선 방향으로 연장하는 상기 적어도 하나의 세척 채널(43')에 의해 적어도 부분적으로 형성되는
혈액 펌프. - 제1항에 있어서,
상기 세척 채널(43')은 상기 블레이드(4) 중 하나를 통해 연장하고, 상기 제1 개구(44')가 상기 블레이드(4)에 대각선 방향으로 반대 위치에 배치되는 혈액 펌프. - 제2항에 있어서,
상기 세척 채널(43')은 출구 개구(45') - 상기 출구 개구(45')는, 상기 블레이드(4)의 반경 방향 외측 에지 상에 배치됨 - 에서 끝나고, 상기 제1 개구(44')가 상기 출구 개구(45')에 대각선 방향으로 반대 위치에 배치되는 혈액 펌프. - 제1항에 있어서,
상기 회전축을 중심으로 도는 방향으로, 상기 제1 개구(44')가 상기 블레이드(4) 중 하나의 전방측에 배치되고 상기 세척 채널(43')의 출구 개구(45')가 상기 블레이드(4)의 후방측에 배치되어, 상기 세척 채널(43')이 상기 블레이드(4) 아래로 연장하도록 하는 혈액 펌프. - 제1항에 있어서,
상기 회전축을 중심으로 도는 방향으로, 상기 제1 개구(44')가 상기 블레이드(4) 중 하나의 전방측에 배치되고 상기 세척 채널(43')이 상기 블레이드(4)를 통해 연장하며 출구 개구(45') - 상기 출구 개구(45')는, 상기 블레이드(4)의 반경 방향 외측 에지 상에 배치됨 - 에서 끝나는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 회전축(9)과 상기 제1 개구(44') 사이의 거리는 상기 회전축(9)과 채널 유동이 상기 통로(7)로 나가는 지점(36)) 사이의 거리의 50% 미만, 바람직하게는 40% 미만, 더 바람직하게는 30% 미만인 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 임펠러(3)는 상기 회전축(9)을 따라 연장하고 상기 베어링(20)을 수용하는 중앙 개구(32)를 포함하며, 상기 제2 개구는 상기 중앙 개구(32)와 유체 연결되며, 상기 제2 개구에서의 상기 세척 채널(43')은 실질적으로 반경 방향으로 상기 회전축(9)을 향해 지향되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 세척 채널(43')의 상기 제1 개구(44')는 회전축에 대해 상기 블레이드(4)의 전방측의 상기 임펠러(3)의 블레이드(4) 중 하나에 인접하여 배치되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 제1 개구(44')의 단면은 원형 또는 비원형인 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 제1 개구(44')는 상기 임펠러(3)의 표면에 대한 상기 세척 채널(43')의 경사에 기인하여 적어도 부분적으로 노출되는 상기 세척 채널(43')의 단부에 의해 형성되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
돌출부(38)가 상기 세척 채널(43')의 상기 제1 개구(44') 내로 연장하고 상기 제1 개구(44')를 통한 상기 세척 채널(43') 내로의 혈액 유동을 증가시키기 위한 크기 및 형상을 가지며, 및/또는 상기 임펠러(3)는 그로부터 반경 방향으로 연장하는 적어도 하나의 날개(39)를 포함하며 회전 방향에 대해 상기 세척 채널(43')의 상기 제1 개구(44')에 인접하고 그 뒤에 배치되며, 상기 날개(39)는 상기 세척 채널(43')의 상기 제1 개구(44')에 걸쳐 연장하고 혈액이 상기 제1 개구(44')로 들어가도록 회전 방향으로 개방되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 회전축(9)에 대하여 대칭으로 배치된 두 개 이상의 세척 채널(43')을 포함하는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 임펠러(3)는 하류 방향에서 반경 방향 외측으로 연장하는 부분(33)을 가지며, 상기 세척 채널(43')의 상기 제1 개구(44')는 상기 부분(33)에 배치되는 혈액 펌프. 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 세척 채널(43')의 상기 제1 개구(44')는 상기 임펠러(3)의 하류 절반에 배치되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 세척 채널(43')의 상기 제1 개구(44')는 - 상기 혈액 펌프(1)의 작동 중에 -, 상기 세척 채널(43')을 통해 상기 제1 개구(44')로부터 상기 베어링(20)으로 혈액 유동을 유발하도록 상기 베어링(20)이 배치되는 상기 임펠러(3)의 영역보다 고압하에 있는 상기 임펠러 (3)의 영역에 배치되는 혈액 펌프. - 제1항 내지 제5항 중 어느 한 항에 있어서,
상기 제1 개구(44')로부터 상기 세척 채널(43')을 통한 혈액 유동은 상기 펌프 케이싱(2)의 상기 혈류 출구(6)를 향하는 방향으로 유동하는 혈액 펌프.
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| PCT/EP2016/055643 WO2016146661A1 (en) | 2015-03-18 | 2016-03-16 | Blood pump |
| KR1020177027677A KR102603666B1 (ko) | 2015-03-18 | 2016-03-16 | 혈액 펌프 |
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