JP5449164B2 - 羽根車を有する装置 - Google Patents
羽根車を有する装置 Download PDFInfo
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- JP5449164B2 JP5449164B2 JP2010523203A JP2010523203A JP5449164B2 JP 5449164 B2 JP5449164 B2 JP 5449164B2 JP 2010523203 A JP2010523203 A JP 2010523203A JP 2010523203 A JP2010523203 A JP 2010523203A JP 5449164 B2 JP5449164 B2 JP 5449164B2
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- 238000000338 in vitro Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000008280 blood Substances 0.000 description 46
- 210000004369 blood Anatomy 0.000 description 46
- 210000004379 membrane Anatomy 0.000 description 26
- 239000012528 membrane Substances 0.000 description 26
- 239000000463 material Substances 0.000 description 19
- 238000013461 design Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 13
- 210000004204 blood vessel Anatomy 0.000 description 12
- 230000004323 axial length Effects 0.000 description 11
- 230000005484 gravity Effects 0.000 description 8
- 230000002792 vascular Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 230000000747 cardiac effect Effects 0.000 description 7
- 238000005086 pumping Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 210000005166 vasculature Anatomy 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 4
- 229910001000 nickel titanium Inorganic materials 0.000 description 4
- 210000000709 aorta Anatomy 0.000 description 3
- 210000002376 aorta thoracic Anatomy 0.000 description 3
- 210000001105 femoral artery Anatomy 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 206010007556 Cardiac failure acute Diseases 0.000 description 1
- 235000017785 Photinia arbutifolia Nutrition 0.000 description 1
- 244000236947 Photinia arbutifolia Species 0.000 description 1
- 241001428214 Polyides Species 0.000 description 1
- 229920006364 Rulon (plastic) Polymers 0.000 description 1
- 239000004963 Torlon Substances 0.000 description 1
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- 238000013019 agitation Methods 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000003516 pericardium Anatomy 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F04D29/18—Rotors
- F04D29/181—Axial flow rotors
-
- 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
- A61M60/13—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
-
- 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
- A61M60/221—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
-
- 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
- A61M60/80—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
- A61M60/808—Vanes or blades specially adapted for deformable impellers, e.g. expandable impellers
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/247—Vanes elastic or self-adjusting
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/382—Flexible 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
- F04D3/00—Axial-flow pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Engineering (AREA)
- Hematology (AREA)
- Cardiology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
羽根車には、特別な設計上の要件が存在する。例えば、ブレード(翼)が拡張したり収縮したりする設計要件がある。このようなアプリケーションの一例は、脈管に挿入される血液ポンプである。
(1)複数のオーバーラップした/当接したブレードレットに分割されるブレード
(2)ブレードをカバーする膜
(3)圧力面が凹状のブレードレット
(4)吸引面が凸状のブレードレット
(5)折り畳み可能なブレードレット
(6)ブレードレットの根元部の弦幅はブレードレットの先端部の弦幅よりも短い
(7)ブレードレットの根元部の湾曲の半径はブレードレットの先端部湾曲の半径よりも小さい
一例として本発明の他の羽根車は、以下の構成を有する。
(1)複数のオーバーラップした/当接したブレードレットに分割されるブレードで、折り畳み可能ではなく、凹状の圧力面を有さないブレード、
(2)複数のオーバーラップした/当接したブレードレットに分割されるブレードで、折り畳み可能であり、凹状の圧力面を有さないブレード、
(3)複数のオーバーラップした/当接したブレードレットに分割されるブレードで、折り畳み可能ではなく、凹状の圧力面を有するブレード、
(4)折り畳み可能で、凹状の圧力面を有する1枚のブレード、
図4Bは、ブレード404−1,404−2,404−3を有する羽根車400Bの端面図であり、各ブレード404−1,404−2,404−3は、それぞれ複数のブレード列406−1−iと406−2−iと406−3−iを有する。ブレード404−1,404−2,404−3は、(360/n)°だけ離間している。ここでnは3であるから、ハブ402Aの周囲に120°離間して配置されている。
1.ケーシング960が、ポンプ組立体950の回転するブレードが周囲の生体(例、血管の内壁)に接触するのを阻止すること
2.ケーシング960が、構造的に一体性を確立すること
3.ケーシング960が、膜を被せるためにフレームワークを提供すること
ハブ902の直径は、約2mm
ブレードレット906−1−i/906−2−iのスパンは、約3mm
根元部のブレードレットの弦幅は、約1mm
先端部のブレードレットの弦幅は、約2mm
ブレード904−1/904−2当たりのブレードレットは、3−7枚
根元部のブレードレットの湾曲の半径は、約1mm
先端部のブレードレットの湾曲の半径は、約2mm以上
102 ハブ
104 ブレード
106 ブレード列
114 ブレード
118 ブレード
120,124 ブレード列
200A、200B 羽根車
202 ハブ
204 ブレード
206 ブレードレット
208 根元部
210 先端部
212 先端外辺
214 後端外辺
216 位置
218 導管
300 羽根車
302 ハブ
304 ブレード
306 ブレードレット
400A、400B 羽根車
402A 402B ハブ
404 ブレード
406 ブレード列
500 羽根車
502 ハブ
504 ブレード
506 ブレードレット
602 ハブ
608 根元部
610 先端部
612 エッジ
614 エッジ
620 フェース
622 フェース
702 ハブ
706 ブレードレット
728 導管
800A、800B 羽根車
802A 802B ハブ
804 ブレード
806 ブレードレット
830 膜
840 膜
900 羽根車
902 ハブ
904 ブレード
906 ブレードレット
908 根元部
910 先端部
912 エッジ
948 駆動シャフト
950 ポンプ組立体
952 ハウジング
954 先端支持部
956 ノーズコーン
958 リブ
960 ケーシング
962 根元部支持リンク
964 先端部支持リンク
962 根元部支持リンク
Claims (15)
- (A)ハブと、
(B)前記ハブ上に配置される第1のブレードレット群と、
からなり、
前記第1のブレードレット群は、共同して第1のブレードを構成し、
前記各ブレードレットは、根元部と先端部とを有し、
前記各ブレードレットは、留置状態と非留置状態の間を動き、
前記留置状態においては、前記先端部は前記ハブから離れており、
前記非留置状態においては、前記先端部は前記ハブに近い
ことを特徴とする羽根車。 - (C)前記ハブ上に配置される第2のブレードレット群
を更に有し、
前記第2のブレードレット群は、第2のブレードを構成し、
前記第1のブレードと第2のブレードが、第1のブレード列を構成し、
前記第1のブレード列は、軸対称にn回配置され、
ここでnは、第1のブレード列のブレードの数である
ことを特徴とする請求項1記載の羽根車。 - 前記第1のブレードレット群は、前記ハブの周囲を螺旋状に配置される
ことを特徴とする請求項1又は2記載の羽根車。 - 隣接するブレードレットのそれぞれの先端部は、互いに当たっている
ことを特徴とする請求項1−3のいずれかに記載の羽根車。 - 前記隣接するブレードレットの先端部は、重なり合う
ことを特徴とする請求項1−3のいずれかに記載の羽根車。 - 前記ブレードレットの少なくとも一部は、先端部で最も幅が広く、根元部で最も幅が狭い
ことを特徴とする請求項1−5のいずれかに記載の羽根車。 - 前記隣接するブレードレットの根元部は、互いに離間している
ことを特徴とする請求項1−6のいずれかに記載の羽根車。 - 前記隣接するブレードレットの先端周辺エッジと後端周辺エッジは、直線である
ことを特徴とする請求項1−7のいずれかに記載の羽根車。 - 前記根元部の弦幅に対する先端部の弦幅の比率は、1.5以上である
ことを特徴とする請求項1−8のいずれかに記載の羽根車。 - 前記各ブレードレットの先端部の弦幅に対する各ブレードレットの半径方向長さの比率は、2以上である
ことを特徴とする請求項1−9のいずれかに記載の羽根車。 - (D)膜を更に有し、
前記膜は、前記第1のブレードの少なくとも一部をカバーする
ことを特徴とする請求項1−10のいずれかに記載の羽根車。 - 前記各ブレードレットは、圧力面と吸引面とを有し、
前記少なくとも一部のブレードレットの圧力面は、凹型である
ことを特徴とする請求項1−11のいずれかに記載の羽根車。 - 前記各ブレードレットは、圧力面と吸引面とを有し、
前記少なくとも一部のブレードレットの吸引面は、凸型である
ことを特徴とする請求項1−12のいずれかに記載の羽根車。 - (E)フレキシブルな駆動ケーブルと、
(F)剛性のある駆動シャフトと、
を更に有し、
前記駆動ケーブルと前記駆動シャフトは、互いに連結され、
前記ハブは、前記駆動シャフトに動作可能に結合される
ことを特徴とする請求項1−13のいずれかに記載の羽根車。 - (E)生体外のモータ を更に有し、
前記モータは、前記駆動ケーブルに接続される
ことを特徴とする請求項1−14のいずれかに記載の羽根車。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96886407P | 2007-08-29 | 2007-08-29 | |
US12/201,561 US8079948B2 (en) | 2007-08-29 | 2008-08-29 | Article comprising an impeller |
US12/201,561 | 2008-08-29 | ||
PCT/US2008/075993 WO2009029959A2 (en) | 2007-08-29 | 2008-09-11 | Article comprising an impeller |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012501396A JP2012501396A (ja) | 2012-01-19 |
JP2012501396A5 JP2012501396A5 (ja) | 2012-03-08 |
JP5449164B2 true JP5449164B2 (ja) | 2014-03-19 |
Family
ID=40408559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010523203A Active JP5449164B2 (ja) | 2007-08-29 | 2008-09-11 | 羽根車を有する装置 |
Country Status (5)
Country | Link |
---|---|
US (2) | US8079948B2 (ja) |
EP (1) | EP2185822B1 (ja) |
JP (1) | JP5449164B2 (ja) |
AU (1) | AU2008292775B2 (ja) |
WO (1) | WO2009029959A2 (ja) |
Families Citing this family (89)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10336902C5 (de) | 2003-08-08 | 2019-04-25 | Abiomed Europe Gmbh | Intrakardiale Pumpvorrichtung |
US7393181B2 (en) | 2004-09-17 | 2008-07-01 | The Penn State Research Foundation | Expandable impeller pump |
CN101448535B (zh) | 2006-03-23 | 2011-10-19 | 宾州研究基金会 | 带有可膨胀叶轮泵的心脏辅助装置 |
US8489190B2 (en) | 2007-10-08 | 2013-07-16 | Ais Gmbh Aachen Innovative Solutions | Catheter device |
US8439859B2 (en) | 2007-10-08 | 2013-05-14 | Ais Gmbh Aachen Innovative Solutions | Catheter device |
EP2194278A1 (de) | 2008-12-05 | 2010-06-09 | ECP Entwicklungsgesellschaft mbH | Fluidpumpe mit einem rotor |
EP2266640A1 (de) * | 2009-06-25 | 2010-12-29 | ECP Entwicklungsgesellschaft mbH | Komprimierbares und expandierbares Schaufelblatt für eine Fluidpumpe |
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EP2185822B1 (en) | 2018-07-11 |
AU2008292775A1 (en) | 2009-03-05 |
WO2009029959A3 (en) | 2009-04-23 |
EP2185822A2 (en) | 2010-05-19 |
JP2012501396A (ja) | 2012-01-19 |
US20090062597A1 (en) | 2009-03-05 |
US8371997B2 (en) | 2013-02-12 |
US20120039713A1 (en) | 2012-02-16 |
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