公开(公告)号：US5941813A

公开(公告)日：1999-08-24

申请号：US898302

申请日：1997-07-22

申请人： Hans-Hinrich Sievers ,  Wolfgang Kloess ,  Wolfgang Daum

发明人： Hans-Hinrich Sievers ,  Wolfgang Kloess ,  Wolfgang Daum

IPC分类号： A61F2/24 ,  A61M1/10 ,  A61M1/12 ,  F04D13/06 ,  F04D15/00 ,  F04D29/24 ,  H02K5/128

CPC分类号： H02K5/1282 ,  A61M1/101 ,  A61M1/1036 ,  A61M1/1087 ,  A61M1/122 ,  F04D13/0673 ,  F04D15/0022 ,  F04D29/247 ,  F05C2251/08 ,  H02K5/1285

摘要： In a cardiac assist device, a housing has an inlet and outlet connectable to a patient's cardiovascular system. A pump is located within the housing to force blood that has entered through the inlet out through the outlet. The pump is connectable between the patient's left atrium and the aorta so as to assist the function of the left ventricle. A motor unit is also disposed within the housing, hermetically sealed from the pump. The whole unit is wholly implantable in a patient's chest. Permanently sealable valves, disposed in the inlet and outlet, may be closed without any invasive procedure to isolate the device from the heart once cardiac function assist is no longer required. The device may remain implanted within the patient indefinitely after the valves have been closed, and there is no requirement for a surgical procedure to remove the device once it is de-activated.

摘要翻译： 在心脏辅助装置中，壳体具有可连接到患者心血管系统的入口和出口。 泵位于壳体内，以迫使通过出口穿过入口的血液通过出口。 泵可连接在患者的左心房和主动脉之间，以协助左心室的功能。 电机单元也设置在壳体内，与泵气密密封。 整个单元完全植入病人的胸部。 设置在入口和出口的永久可密封的阀可以在不需要心脏功能辅助的情况下关闭而无需任何侵入性的过程来将装置与心脏隔离。 在阀已经关闭之后，该装置可以无限期地植入患者体内，并且一旦外科手术被去激活就不需要移除该装置。

公开(公告)号：US06231513B1

公开(公告)日：2001-05-15

申请号：US09172387

申请日：1998-10-14

申请人： Wolfgang Daum ,  Wolfgang Kloess

发明人： Wolfgang Daum ,  Wolfgang Kloess

IPC分类号： A61B800

CPC分类号： A61B8/481 ,  A61B5/02007 ,  A61B5/418 ,  A61B8/06

摘要： The present invention is directed to apparatuses and methods for determining blood flow characteristics and imaging interior surface contours within vessel walls. In a preferred embodiment, the method of the invention includes a hollow tubular lumen having a proximal end and distal end wherein the distal end includes a microbubble forming arrangement for forming microbubbles when a gas is passed through the distal end of the hollow tube.

摘要翻译： 本发明涉及用于确定血液流动特征和成像血管壁内部内表面轮廓的装置和方法。 在优选实施例中，本发明的方法包括具有近端和远端的中空管状内腔，其中远端包括用于在气体穿过中空管的远端时形成微泡的微泡形成装置。

公开(公告)号：US5782842A

公开(公告)日：1998-07-21

申请号：US587240

申请日：1996-01-16

申请人： Wolfgang Kloess ,  Christian Frahm

发明人： Wolfgang Kloess ,  Christian Frahm

IPC分类号： A61B17/34 ,  A61B19/00

CPC分类号： A61B17/3403 ,  A61B90/13 ,  A61B2090/366

摘要： A device for marking a planned guide path of a medical instrument such as a puncture needle is disclosed. The device incorporates two sources of electromagnetic radiation, such as lasers, which produce two light rays. The intersecting line of the light rays marks the guide path for the puncture needle. Deviations of the angle position of the puncture needle from the planned guide path are visible by examining the reflection of the light from the puncture needle. Different colors of light may be used with the light rays being formed in a fan-shape in a common plane. In this manner, the color of the reflected light on the surface of the puncture needle changes depending on whether the puncture needle is located at the intersection of the light rays.

摘要翻译： 公开了一种用于标记诸如穿刺针的医疗器械的计划引导路径的装置。 该装置包含两个电磁辐射源，例如产生两个光线的激光器。 光线的交线表示穿刺针的引导路径。 通过检查来自穿刺针的光的反射可以看出穿刺针从计划的引导路径的角度位置的偏差。 可以使用不同颜色的光，其中在共同的平面中形成为扇形的光线。 以这种方式，穿刺针的表面上的反射光的颜色根据穿刺针是否位于光线的交叉点而变化。