JP4681625B2 - 血液ポンプおよびポンプユニット - Google Patents
血液ポンプおよびポンプユニット Download PDFInfo
- Publication number
- JP4681625B2 JP4681625B2 JP2008042044A JP2008042044A JP4681625B2 JP 4681625 B2 JP4681625 B2 JP 4681625B2 JP 2008042044 A JP2008042044 A JP 2008042044A JP 2008042044 A JP2008042044 A JP 2008042044A JP 4681625 B2 JP4681625 B2 JP 4681625B2
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- JP
- Japan
- Prior art keywords
- rotating body
- magnet
- casing
- bearing
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- 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
-
- 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
-
- 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
- A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/026—Details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/048—Bearings magnetic; electromagnetic
-
- 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
Description
11 回転体
11A 羽根車
11A1 前シュラウド
11A1a 吸引口
11A1b 筒部
11A1c 軸受面(径方向軸受)
11A2 後シュラウド
11A3 羽根
11B 軸部
11B1 軸受面(径方向軸受)
11B2 貫通孔
11B3 従動磁石(軸方向軸受)
12 ケーシング
12A 圧送部
12A1 吸込口
12A2 吐出口
12A3 軸受面(径方向軸受)
12B 軸受部
12B1 軸受面(径方向軸受)
20 駆動ユニット
21 容器
22 駆動モータ(駆動部)
22A 出力軸
23 回転部材
23A 駆動磁石(軸方向軸受)
24 蓋部材
24A 凹部
P 軸線
Claims (4)
- ケーシングの内部に回転可能に配置された回転体を備え、
前記回転体に設けられた永久磁石である従動磁石、および前記ケーシングの外部で前記回転体の径方向に前記従動磁石と対向配置されて前記従動磁石と磁気結合する永久磁石である駆動磁石から成る軸方向軸受としての機能を有する磁気カップリングと、
前記駆動磁石を前記回転体の軸線を中心に回転駆動する駆動部と、
前記ケーシングの内壁および前記回転体に前記軸線を中心とした円環状の軸受面が設けられ、各前記軸受面が前記駆動磁石と前記従動磁石との間で前記回転体の径方向に隙間を有して配置された動圧軸受である径方向軸受と、
前記回転体における軸線方向前側に設けられた前シュラウド、該前シュラウドの軸線方向後側に設けられた後シュラウド、および前記前シュラウドと前記後シュラウドとの間に設けられた羽根を有するクローズド羽根車と
を備え、前記従動磁石が前記回転体に形成された円柱状の軸部に設けられ、前記駆動磁石が前記従動磁石に対して前記軸部の径方向外側に配置されていることを特徴とする血液ポンプ。 - 前記径方向軸受は、前記駆動磁石と前記従動磁石との間である前記後シュラウド後側の前記回転体と前記ケーシング内壁との間の他、前記前シュラウド前側の前記回転体と前記ケーシング内壁との間にも動圧軸受として設けられていることを特徴とする請求項1に記載の血液ポンプ。
- 前記従動磁石を有した前記回転体が前記ケーシングの内部に収容され、前記回転体と前記ケーシングの内壁との間に前記径方向軸受が設けられたポンプユニットと、
前記駆動磁石および前記駆動部を有した駆動ユニットと
を構成し、前記ポンプユニットを前記駆動ユニットに対して着脱可能に設けたことを特徴とする請求項1または2に記載の血液ポンプ。 - ケーシングの内部に回転可能に配置された回転体を備え、前記回転体を回転駆動する駆動ユニットに対して着脱可能に設けられた血液ポンプのポンプユニットであって、
前記回転体の軸線を中心に回転駆動されるように前記ケーシングの外部に配設される前記駆動ユニットの永久磁石である駆動磁石に対し、前記回転体の径方向に対向する態様で前記回転体に設けられ、前記駆動磁石と磁気結合されて軸方向軸受としての機能を有する磁気カップリングを成す永久磁石である従動磁石と、
前記ケーシングの内壁および前記回転体に前記軸線を中心とした円環状の軸受面が設けられ、各前記軸受面が前記駆動磁石と前記従動磁石との間で前記回転体の径方向に隙間を有して配置される動圧軸受である径方向軸受と、
前記回転体における軸線方向前側に設けられた前シュラウド、該前シュラウドの軸線方向後側に設けられた後シュラウド、および前記前シュラウドと前記後シュラウドとの間に設けられた羽根を有するクローズド羽根車と
を備え、前記従動磁石が前記回転体に形成された円柱状の軸部に設けられ、前記駆動磁石が前記従動磁石に対して前記軸部の径方向外側に配置されていることを特徴とするポンプユニット。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008042044A JP4681625B2 (ja) | 2008-02-22 | 2008-02-22 | 血液ポンプおよびポンプユニット |
PCT/JP2009/050978 WO2009104451A1 (ja) | 2008-02-22 | 2009-01-22 | 血液ポンプおよびポンプユニット |
DE112009000185T DE112009000185B4 (de) | 2008-02-22 | 2009-01-22 | Blutpumpe und Pumpeinheit |
US12/810,083 US8114008B2 (en) | 2008-02-22 | 2009-01-22 | Blood pump and pump unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008042044A JP4681625B2 (ja) | 2008-02-22 | 2008-02-22 | 血液ポンプおよびポンプユニット |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009197736A JP2009197736A (ja) | 2009-09-03 |
JP4681625B2 true JP4681625B2 (ja) | 2011-05-11 |
Family
ID=40985338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008042044A Active JP4681625B2 (ja) | 2008-02-22 | 2008-02-22 | 血液ポンプおよびポンプユニット |
Country Status (4)
Country | Link |
---|---|
US (1) | US8114008B2 (ja) |
JP (1) | JP4681625B2 (ja) |
DE (1) | DE112009000185B4 (ja) |
WO (1) | WO2009104451A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9145894B2 (en) | 2011-09-15 | 2015-09-29 | Mitsubishi Heavy Industries, Ltd. | Magnetic coupling pump and pump unit comprising the same |
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2008
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-
2009
- 2009-01-22 US US12/810,083 patent/US8114008B2/en active Active
- 2009-01-22 DE DE112009000185T patent/DE112009000185B4/de active Active
- 2009-01-22 WO PCT/JP2009/050978 patent/WO2009104451A1/ja active Application Filing
Patent Citations (2)
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JPH07136247A (ja) * | 1993-11-16 | 1995-05-30 | Toyobo Co Ltd | 血液用遠心ポンプ |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9145894B2 (en) | 2011-09-15 | 2015-09-29 | Mitsubishi Heavy Industries, Ltd. | Magnetic coupling pump and pump unit comprising the same |
Also Published As
Publication number | Publication date |
---|---|
DE112009000185B4 (de) | 2013-03-07 |
JP2009197736A (ja) | 2009-09-03 |
US8114008B2 (en) | 2012-02-14 |
US20100280305A1 (en) | 2010-11-04 |
WO2009104451A1 (ja) | 2009-08-27 |
DE112009000185T5 (de) | 2011-02-03 |
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