JP6106673B2 - 静脈と動脈の全体直径を増大させるシステムと方法 - Google Patents
静脈と動脈の全体直径を増大させるシステムと方法 Download PDFInfo
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- JP6106673B2 JP6106673B2 JP2014526178A JP2014526178A JP6106673B2 JP 6106673 B2 JP6106673 B2 JP 6106673B2 JP 2014526178 A JP2014526178 A JP 2014526178A JP 2014526178 A JP2014526178 A JP 2014526178A JP 6106673 B2 JP6106673 B2 JP 6106673B2
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- vein
- blood
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- peripheral
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- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/515—Regulation using real-time patient data
- A61M60/531—Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
-
- 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
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/538—Regulation using real-time blood pump operational parameter data, e.g. motor current
- A61M60/546—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood flow, e.g. by adapting rotor speed
-
- 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
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/538—Regulation using real-time blood pump operational parameter data, e.g. motor current
- A61M60/554—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood pressure
-
- 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
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/857—Implantable blood tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00969—Surgical instruments, devices or methods used for transplantation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis for blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/0478—Heparin
-
- 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
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0238—General characteristics of the apparatus characterised by a particular materials the material being a coating or protective layer
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- Health & Medical Sciences (AREA)
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Description
WSS(Pa)=4Qμ/πR3
ここで、
Q=流速(m3/s)
μ=血液の粘度(Pa*s)
R=血管半径(m)
である。
WSS(Pa)=4Qμ/ππR3
ここで、
Q=流速(m3/s)
μ=血液の粘度(Pa*s)
R=血管半径(m)
である。
P.Wearden外、「小児用心室補助装置PediaFlow(商標)(The PediaFlow(TM) Pediatric Ventricular Assist Device)」、小児心臓外科年報(Pediatric Cardiac Surgery Annual)、pp92−98、2006。
J.Wu外、「心臓に調和する設計(Designing with Heart)」、ANSYS Advantage、第1巻2号、pps12−13、2007。
J.Baldwin外、「米国心臓、肺、血液研究所における小児循環支援プログラム(The National Heart, Lung, and Blood Institute Pediatric Circulatory Support Program)」、Circulation、第113号pp.147−155、2006。
ポンプ14として利用可能なポンプの他の例としては、以下のものがある。
World Heart, Inc.社;Novacor、PediaFlow、Levacor、MiVAD
Micromed, Inc.社;Debakey Heart Assist 1−5。
Thoratec, Inc.社;HeartMate XVE、HeartMate II、HeartMate III、IVAD、PVAD、Centri Mag、PediMag、or UltraMag。
Abiomed, Inc.社;Impella、BVS5000、AB5000、Symphony
CardiacAssist, Inc.社;TandemHeart Ventracor, Inc.社;VentrAssist
独国Berlin Heart社; Incor、Excor
テルモ社;デュラハート
Heart Ware, Inc.社;HVAD、MVAD
Jarvik Heart, Inc.社;Jarvik 2000 Flowmaker、Pediatric Jarvik 2000 Flowmaker
京セラ社;ジャイロC1E3
Cleveland Clinic財団;CorAide、PediPump
MEDOS Medizintechnik AG社;MEDOS HIA VAD
Ension, Inc社;pCAS
Circulite, Inc社;Synergy
Medtronic, Inc.社;BP−50、BP−80
ポンプは、手動又はソフトウェアプログラムやアプリケーションや他の自動システムで監視および調節が可能である。ソフトウェアプログラムはポンプ速度(毎分のインペラ回転数を含む)を調節して、受容静脈、供与動脈又は供与静脈などの標的血管内の所望の血液速度とWSSを維持することが可能である。あるいはまた、標的血管の直径と、血液ポンプシステム又は標的血管内の血流を定期的にチェックして、標的血管内の所望の血液速度とWSSを維持するように手動調節してもよい。
Claims (28)
- 患者に動静脈フィステル又は動静脈グラフトを形成するより前の使用のためのシステムであって、
入口と出口を有するポンプと、
供与位置へ流体接続する第1の入口と前記ポンプの前記入口へ流体接続される第1の出口とを有すると共に、血液を前記ポンプに案内するための第1導管と、
受容位置へ流体接続する第2の出口と前記ポンプの前記出口へ流体接続される第2の入口とを有すると共に、前記血液を前記受容位置へ移動させるための第2導管と、
ルーチン作動の間、前記供与位置内の壁剪断応力が1.5Pa以上となるように、前記ポンプを制御するように構成された制御ユニットと、
を含み、
前記制御ユニットは、ポンプ輸送の停止後、前記供与位置からの前記血液の流れが前記供与位置の全体直径の持続的増大を引き起こすときまで、前記システムを作動し且つ前記患者に前記動静脈フィステル又は前記動静脈グラフトが形成される前に前記ポンプの作動を停止するように構成されている、
システム。 - 前記血液を50mL/min〜2500mL/minの間の速度でポンプ輸送することができる、請求項1に記載のシステム。
- 前記血液を100mL/min〜1000mL/minの間の速度でポンプ輸送することができる、請求項1に記載のシステム。
- 前記供与位置内の平均壁剪断応力が1.5Pa〜23Paの間に維持されるための速度で前記血液をポンプ輸送することができる、請求項1に記載のシステム。
- 前記供与位置内の平均壁剪断応力が2.5Pa〜10Paの間に維持されるための速度で前記血液をポンプ輸送することができる、請求項1に記載のシステム。
- 前記供与位置内の前記血液の平均速度が15cm/s〜100cm/sの間に維持されるための速度で前記血液をポンプ輸送することができる、請求項1に記載のシステム。
- 前記供与位置内の血液の平均速度が25cm/s〜100cm/sの間に維持されるための速度で前記血液をポンプ輸送することができる、請求項1に記載のシステム。
- 前記システムを通して前記血液を7日〜84日の間ポンプ輸送することができる、請求項1に記載のシステム。
- 前記システムを通して前記血液を7日〜42日の間ポンプ輸送することができる、請求項1に記載のシステム。
- 前記システムの前記ポンプは、前記患者の体内に移植されるように構成されている、請求項1に記載のシステム。
- 前記システムの前記ポンプは、前記患者の体外に配置されるように構成されている、請求項1に記載のシステム。
- 前記システムの前記ポンプは、遠心ポンプである、請求項1に記載のシステム。
- 前記システムの前記ポンプは、少なくとも1つの接触軸受で構成されている、請求項1に記載のシステム。
- 前記システムの前記ポンプは、電気モータで駆動される、請求項1に記載のシステム。
- 前記第1導管と前記第2導管を合わせた長さは、2cm〜200cmの間である、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、所望の長さに切って前記ポンプに取り付けることができる、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、ポリウレタン及び/又はシリコーンから選択される少なくとも1つの部材で構成される、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、ePTFE又はダクロンである、請求項1に記載のシステム。
- 前記ePTFE又は前記ダクロンの部分は、長さが5cm未満である、請求項18に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、ニチノールで強化されている、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、抗菌コーティングを備える、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の内腔の少なくとも一部は、抗血栓コーティングを備える、請求項1に記載のシステム。
- 前記第1導管又は前記第2導管の少なくとも一部は、皮下トンネリング用に構成されている、請求項1に記載のシステム。
- 前記システムの前記ポンプの速度は、前記制御ユニットを利用して手動調節される、請求項1に記載のシステム。
- 前記制御ユニットは、前記システムのポンプ速度又は流速を監視するソフトウェアによって、自動調節される、請求項1に記載のシステム。
- 前記制御ユニットは、前記システムの前記ポンプに電力を供給するための再充電可能な電源ユニットを含んでいる、請求項1に記載のシステム。
- 前記第1導管は、外科的吻合を介した右心房、上大静脈、下大静脈、腕頭静脈、頸静脈、鎖骨下静脈、腋窩静脈、総腸骨静脈、外腸骨静脈又は大腿静脈への液体接続を可能にするように構成されている、請求項1に記載のシステム。
- 前記第2導管は、橈側皮静脈、尺骨静脈、肘正中静脈、尺側皮静脈、上腕静脈、小伏在静脈、大伏在静脈又は大腿静脈への液体接続を生成するように構成されている、請求項1に記載のシステム。
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PCT/US2012/050978 WO2013025821A2 (en) | 2011-08-17 | 2012-08-15 | System and method to increase the overall diameter of veins and arteries |
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