专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1997030739A1 CONTROL CIRCUIT FOR AN IMPLANTABLE CARDIAC ASSISTANCE PUMP WITH A COUNTERPRESSURE BALLOON 审中-公开
标题翻译：用于压力气球的可移动心脏辅助泵的控制电路
公开(公告)号：WO1997030739A1
公开(公告)日：1997-08-28
申请号：PCT/FR1997000302
申请日：1997-02-19
申请人： SYNTHELABO BIOMEDICAL, SOCIETE ANONYME , FRANCHI, Pierre
发明人： SYNTHELABO BIOMEDICAL, SOCIETE ANONYME
IPC分类号： A61M01/10
CPC分类号： A61M1/1072 , A61M1/1037 , A61M1/106 , A61M1/1086 , A61M1/122 , A61M2205/33 , A61M2205/3303 , A61M2205/3334
摘要： A pump (10) including variable-volume means (24) operably connected to a separate volume (20) through which blood flows for cyclically and controllably varying said volume (20). The pump control circuit comprises means for collecting data on the aortic pressure (P(t)), means for collecting data on the venous oxygen concentration (PO2V), means for collecting data on the aortic oxygen concentration (PO2A), means for collecting data on the heart rate (F), and/or means for collecting data on the myocardial contractility (dP/dt). The circuit can control the speed of variation (u(t); v(t)) of said volume during the systolic and diastolic phases of the myocardium, as well as the times (tA; tR) at which the volume variation starts during the systolic and diastolic phases.
摘要翻译：一种泵（10），其包括可操作地连接到单独容积（20）的可变容积装置（24），血液通过该容积循环地和可控地改变所述体积（20）。泵控制电路包括用于收集主动脉压（P（t））数据的装置，用于收集关于静脉氧浓度（PO2V）的数据的装置，用于收集主动脉氧浓度数据（PO2A）的装置，用于收集数据的装置心率（F）和/或用于收集关于心肌收缩力（dP / dt）的数据的方法。该电路可以控制在心肌的收缩期和舒张期期间所述体积的变化速度（u（t）; v（t）），以及在期间体积变化开始的时间（tA; tR）收缩期和舒张期。

2. 发明申请

WO1996040312A1 A METHOD OF MAKING A LEFT VENTRICULAR ASSIST DEVICE 审中-公开
标题翻译：制造左心室辅助装置的方法
公开(公告)号：WO1996040312A1
公开(公告)日：1996-12-19
申请号：PCT/US1996009759
申请日：1996-06-07
申请人： W.L. GORE & ASSOCIATES, INC.
发明人： W.L. GORE & ASSOCIATES, INC. , CAMPBELL, Michael, L. , DAUGHERTY, John, R. , SHAW, Edward, E. , VILLALPANDO, Pete, L.
IPC分类号： A61M01/10
CPC分类号： A61M1/1037 , A61M1/1001 , A61M1/1003 , A61M1/1018 , A61M1/106 , A61M1/1068 , A61M1/107 , A61M1/1074 , A61M1/1086 , A61M1/1087 , A61M1/12 , A61M1/127 , A61M2205/33 , A61M2205/3303
摘要： A method of making a left ventricular assist device (LVAD) using muscle wrapped around a mandrel to form a muscle pouch, the open end of which is sewn to a circular sheet of patch material having connections to one end of each of a pair of vascular grafts, or alternatively to one end of a single vascular graft. The second ends of these vascular grafts are used to connect the LVAD to the aorta. After the muscle pouch has been formed around the mandrel, the mandrel is removed and replaced by a balloon which is inserted into the muscle pouch and inflated to maintain the desired shape of the muscle pouch during healing and stimulation of the pouch. The balloon is subsequently removed preceding activation of theLVAD to allow it to begin pumping blood. Alternatively, various other shape-maintaining forms which are expandable and collapsible may be used in place of the balloon. In another alternative embodiment, an additional strip of latissimus dorsi or other appropriate muscle or a mechanical clamping device may be used to synchronously compress the aorta between the ends of the vascular grafts anastomosed to the aorta.
摘要翻译：使用围绕心轴缠绕的肌肉来制造左心室辅助装置（LVAD）的方法，以形成肌肉袋，其开口端被缝合到具有与一对血管的每一个的一端连接的补片材料的圆形片移植物，或者替代为单个血管移植物的一端。这些血管移植物的第二端用于连接LVAD与主动脉。在心轴周围形成肌肉袋之后，心轴被移除，并被插入肌肉袋中的气球代替，并且在愈合和刺激小袋期间充气以保持肌肉袋的所需形状。随后在激活VAD之前移除气囊，以使其开始抽血。或者，可以使用可膨胀和可折叠的各种其它形状保持形式来代替气球。在另一替代实施例中，可以使用额外的背阔肌或其他适当的肌肉或机械夹紧装置的条带来同步地压缩主动脉在与主动脉吻合的血管移植物的端部之间。

3. 发明申请

WO1996032971A1 DEVICE FOR TEMPORARILY CLOSING A CANAL IN A BODY, IN PARTICULAR FOR ASSISTING THE FUNCTION OF THE HEART BY APPLICATION OF COUNTER-PRESSURE 审中-公开
标题翻译：用于临时关闭体内运动的装置，特别是通过应用压力来辅助心脏的功能
公开(公告)号：WO1996032971A1
公开(公告)日：1996-10-24
申请号：PCT/FR1996000608
申请日：1996-04-22
申请人： LABORATOIRES NYCOMED S.A. , BOUSSIGNAC, Georges , HILAIRE, Pierre
发明人： LABORATOIRES NYCOMED S.A.
IPC分类号： A61M01/10
CPC分类号： A61M25/0075 , A61F2/0013 , A61F2/0027 , A61M1/1037 , A61M1/106 , A61M1/107 , A61M1/1072 , A61M1/1074 , A61M1/122 , A61M1/125 , A61M25/1002 , A61M29/02 , A61M2025/1052
摘要： The present invention concerns a device for temporarily closing a canal in a body, in particular for assisting the function of the heart by application of counter-pressure. The device is characterized in that it comprises a first inflatable structure (1) which, in the inflated state, defines a sleeve shaped to match the internal surface of the canal, providing a central conduit (4). The device further comprises a second inflatable structure which expands radially, preferably from the exterior to the interior, is held by the first structure (1) and shaped such that, in the inflated state, it permits substantially complete closure of the central conduit (4) formed after inflation of the first structure. The device finally comprises means allowing each of these first and second inflatable structures to be in fluid communication with a fluid delivery source.
摘要翻译：本发明涉及用于临时关闭体内运河的装置，特别是用于通过施加反压来辅助心脏的功能。该装置的特征在于，其包括第一可充气结构（1），其在膨胀状态下限定形成为匹配管的内表面的套筒，提供中心导管（4）。该装置还包括第二可膨胀结构，其径向膨胀，优选从外部延伸到内部，由第一结构（1）保持并且成形为使得在膨胀状态下，允许基本上完全关闭中心导管（4））在第一种结构膨胀后形成。装置最后包括允许这些第一和第二可膨胀结构中的每一个与流体输送源流体连通的装置。

4. 发明申请

WO1995020984A3 VENTRICULAR ASSIST DEVICE WITH VALVED BLOOD CONDUIT AND METHOD OF MAKING 审中-公开
公开(公告)号：WO1995020984A3
公开(公告)日：1995-08-10
申请号：PCT/US1995001596
申请日：1995-02-06
申请人： BAXTER INTERNATIONAL INC.
发明人： BAXTER INTERNATIONAL INC. , WOODARD, John, C. , GREENBERG, Sheldon, I. , NESS, Ronald, A. , ROMLEY, Ronald, M. , NGUYEN, Than , CHEN, Herbert
IPC分类号： A61M01/10

5. 发明申请

WO1994002187A1 CENTRIFUGAL BLOOD PUMP 审中-公开
标题翻译：离心泵
公开(公告)号：WO1994002187A1
公开(公告)日：1994-02-03
申请号：PCT/US1993002314
申请日：1993-03-12
申请人： BAXTER INTERNATIONAL INC.
发明人： BAXTER INTERNATIONAL INC. , MATHEWSON, Wilfred, F.
IPC分类号： A61M01/10
CPC分类号： A61M1/267 , A61M1/10 , A61M1/1006 , A61M1/101 , A61M1/1012 , A61M1/1625 , A61M1/1698 , A61M1/262 , B01D63/02 , B01D63/021 , B01D65/08 , B01D2321/20 , F04D29/2255 , F04D29/242
摘要： A low priming volume centrifugal pump comprising a disc shaped impeller (10) having opposite faces (16, 18) and an inlet hole (20) centrally disposed therein. The impeller (10) has flow channels (12, 14) disposed on at least one of the faces (16, 18) of the impeller (10) which radiate outward from said inlet hole (20). The volume of the flow channels (12, 14) is small relative to the total impeller envelope volume providing for efficient momentum transfer with a minimum of turbulence and backflow. Thus, priming volume is reduced and flow within the pump is more efficient. The pump can be used as stand alone device, or it can be integrated with a blood oxygenator into a common housing.
摘要翻译：一种低起动体积离心泵，包括具有相对面（16,18）和中心地设置在其中的入口孔（20）的盘形叶轮（10）。叶轮（10）具有设置在从所述入口孔（20）向外辐射的叶轮（10）的至少一个面（16,18）上的流动通道（12,14）。流动通道（12,14）的体积相对于总叶轮包络体积较小，提供了具有最小湍流和回流的有效动量传递。因此，引燃体积减小，泵内的流动更有效率。该泵可用作独立装置，也可将其与血液充氧器整合到共同的外壳中。

6. 发明申请

WO1993020860A1 PUMPING APPARATUS WITH FIXED CHAMBER IMPELLER 审中-公开
标题翻译：具有固定式室内叶轮的泵装置
公开(公告)号：WO1993020860A1
公开(公告)日：1993-10-28
申请号：PCT/US1993002110
申请日：1993-03-10
申请人： MEDTRONIC, INC.
发明人： MEDTRONIC, INC. , JOHNSON, George, M.
IPC分类号： A61M01/10
CPC分类号： F04D29/242 , A61M1/101 , A61M1/1012 , A61M1/1036 , F04D1/04 , F04D13/024 , F04D29/2272
摘要： Apparatus and method for pumping blood and other delicate fluids. The apparatus includes a rotor (12) having an impeller (18) which includes an upper section (22) and a lower section (20) with oppositely disposed surfaces (26, 28), the upper section (22) having a central opening (24). Separating surfaces (30) disposed between the upper and lower sections (22, 20) define a plurality of fluid flow passages (32) between the oppositely disposed surfaces (26, 28). The separating surfaces (30) include a leading edge (45) and a trailing edge (47), the leading edge (45) being disposed at or near the central opening (24) and the trailing edge (47) being disposed at or near the peripheral edge (34) of the impeller (18). This construction maximizes the pressure differential of the fluid from the inlet to the outlet and minimizes turbulence such that the pump has good air entrapment capabilities as well as gentle blood handling characteristics.
摘要翻译：用于抽血和其他精细液体的装置和方法。该装置包括具有叶轮（18）的转子（12），该叶轮包括具有相对设置表面（26,28）的上部分（22）和下部分（20），上部部分（22）具有中心开口 24）。设置在上部和下部（22,20）之间的分离表面（30）在相对设置的表面（26,28）之间限定多个流体流动通道（32）。分离表面（30）包括前缘（45）和后缘（47），前缘（45）设置在中央开口（24）处或附近，后缘（47）设置在或靠近叶轮（18）的周缘（34）。这种结构使得流体从入口到出口的压差最大化，并使湍流最小化，使得泵具有良好的空气截留能力以及温和的血液处理特性。

7. 发明申请

WO1993017730A1 ARTIFICIAL HEART 审中-公开
标题翻译：人造心脏
公开(公告)号：WO1993017730A1
公开(公告)日：1993-09-16
申请号：PCT/US1993002210
申请日：1993-03-11
申请人： MILWAUKEE HEART RESEARCH FOUNDATION
发明人： MILWAUKEE HEART RESEARCH FOUNDATION , GAO, Hua
IPC分类号： A61M01/10
CPC分类号： A61M1/1046 , A61M1/1037 , A61M1/1049 , A61M1/1096 , A61M1/12 , A61M1/122
摘要： A cyclic action, electromechanically operated artificial heart (10) having a pusher plate assembly (18) disposed between a pair of bladders (14, 16) for alternately compressing one bladder containing blood directed to the pulmonary system and another bladder containing blood directed to the system circulatory system includes a mechanical linkage (20) for translating unidirectional rotary motion of a motor (22) located opposite of both bladders into reciprocating movement of the pusher plate assembly.

8. 发明申请

WO1991004063A1 FLUID PUMP WITH FLEXIBLE PUMP CHAMBER 审中-公开
标题翻译：带柔性泵室的流体泵
公开(公告)号：WO1991004063A1
公开(公告)日：1991-04-04
申请号：PCT/SE1990000585
申请日：1990-09-14
申请人： PHARMACIA AB , LÖFSJÖGÅRD NILSSON, Erling , INACIO, Jorge
发明人： PHARMACIA AB
IPC分类号： A61M01/10
CPC分类号： A61M1/1046 , A61M1/1006 , A61M1/1037 , A61M1/1048 , A61M1/1081 , A61M1/1087 , A61M1/1096
摘要： A fluid pump, particularly an extracorporeal blood pump, comprises a pump chamber (1) having an inlet opening (2) and an outlet opening (3), each connected to a respective non-return valve (4, 5). The inlet (1) and the outlet (2) are movable in relation to each other and connected to a drive means (6) for periodic displacement of the inlet and the outlet alternately towards and away from each other, the interior volume of the pump chamber (1) being variable in correspondence with the relative distance between the inlet and the outlet. The pump chamber (1) is on its outside influenced by the surrounding pressure and has a wall of a flexible material constructed in such a manner that the pump chamber will collapse and reduce its volume, if the interior pressure in the pump chamber falls below the surrounding pressure by an amount greater than the required opening pressure difference for the non-return valve connected to the inlet. The reduction of the interior volume of the pump chamber in the case of such collapsing will at least correspond to the maximum increase of the interior volume of the pump chamber when the inlet and the outlet are moved away from each other.

9. 发明申请

WO1986001116A1 AUTOTRANSFUSION APPARATUS 审中-公开
标题翻译：自动装置装置
公开(公告)号：WO1986001116A1
公开(公告)日：1986-02-27
申请号：PCT/EP1985000396
申请日：1985-08-06
申请人： RÜHLAND, Dieter
IPC分类号： A61M01/10
CPC分类号： A61J1/05 , A61M1/02 , Y10S128/03
摘要： An autotransfusion apparatus for blood or other similar body liquids comprises a) a container (5) susceptible of being emptied and stable to an underpressure, comprising a lower part (4) and a top part (3), with a1) an inlet opening (20) for the body liquids, which is formed in the top part, a2) a discharge opening (24) for the body liquids, which is formed on the top part (3) and which is topped by a sieve (25) and a3) an opening (9) provided in the lower part (4) of the container in order to establish a gas flow connection with a cavity having a gas pressure different of that prevailing inside the container, b) a membrane (16) susceptible of being deformed by the pressure and impervious to body liquids. The membrane is fixed with a gas-tight relationship to the walls of the container (5), between the bottom part and the top part so as to divide the container (5) into a gas-filled lower cavity (13) and an upper cavity (19) which is tight with respect to the first cavity and intended to receive the body liquid. The autotransfusion apparatus enables to collect rapidly and functionally blood without the risk of damaging the blood and without any danger for the patient, particularly without the danger of causing an aeroembolism, and enables to retransfuse the blood into the patient, since c) the discharge opening (24) is sealable by a floating body.
摘要翻译：用于血液或其它类似体液的自体输血装置包括：a）容易被排空并且对负压稳定的容器（5），包括下部（4）和顶部（3），其中a1）入口开口 20），其形成在顶部部分中，a2）用于体液的排出口（24），其形成在顶部部分（3）上并由筛（25）和）设置在所述容器的下部（4）中的开口（9），以便与具有与所述容器内部的气体压力不同的气体压力的空腔建立气体流动连接，b）容易受到影响的膜（16）通过压力变形并且不透过体液。膜与底部和顶部之间的容器（5）的壁以气密的方式固定，以便将容器（5）分成充气的下腔（13）和上部空腔（19），其相对于第一腔体紧密并且旨在接收身体液体。自动输送装置能够快速和功能地收集血液，而不会有损伤血液的危险，并且对患者没有任何危险，特别是没有导致气囊栓塞的危险，并且能够将血液再次输送到患者体内，因为c）排出口（24）可由浮体密封。

10. 发明申请

WO1998018509A1 A METHOD AND APPARATUS FOR IMPROVING DEVICE PLATELET COMPATIBILITY 审中-公开
标题翻译：一种用于改善设备平板兼容性的方法和装置
公开(公告)号：WO1998018509A1
公开(公告)日：1998-05-07
申请号：PCT/US1997019191
申请日：1997-10-23
申请人： COBE LABORATORIES, INC.
发明人： COBE LABORATORIES, INC. , GIBBS, Bruce, W.
IPC分类号： A61M01/10
CPC分类号： F04B43/0072 , A61L33/068 , A61M1/10 , A61M1/1006 , A61M1/1039 , C08L83/10
摘要： An apparatus and method are provided for reducing platelet clumping in a concentrated platelet solution. A pump (32) is provided by having a tubing loop (54) of a surface modified polymer, to pump the concentrated platelet solution. Clumping is reduced in the concentrated platelet solution following transport through the pump tubing loop (54).
摘要翻译：提供了用于减少浓缩血小板溶液中的血小板聚集的装置和方法。通过具有表面改性聚合物的管道环（54）来提供泵（32），以泵送浓缩的血小板溶液。运输通过泵管回路（54）后浓缩血小板溶液中的凝结减少。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式