公开(公告)号：US06231585B1

公开(公告)日：2001-05-15

申请号：US09328526

申请日：1999-06-09

Applicant: Masao Takahashi ,  Elazer E. Edelman ,  Kenneth W. Carpenter

Inventor： Masao Takahashi ,  Elazer E. Edelman ,  Kenneth W. Carpenter

IPC: A61M2900

CPC classification number: A61B17/02 ,  A61B17/0218 ,  A61B2017/00243 ,  A61B2017/00252 ,  A61B2017/0243 ,  A61B2017/306

Abstract: The present invention provides stabilizing devices and methods of use for temporarily remotely immobilizing a local area of tissue, such as a local area of tissue on a beating heart, or other internal organ, to thereby permit minimally-invasive or robotic surgery thereon. The invention stabilizing device, which is coupled to a vacuum source, features an elastomeric suction body mounted on the steerable tip of a rod-like instrument, such as a steerable catheter. The flexible or steerable tip and elongate suction channel are sized for introduction into an interior body cavity via a small surgical opening. A steering mechanism mounted at the proximal end of the device is used to coil the elongate tip and suction channel into a ring- or horseshoe-shape within the body cavity. Preferably, the suction channel has a flexible, spreadable outer rim portion which is designed to flatten and spread outwardly against the surface of the treatment site as air is withdrawn from the coiled suction channel to distribute the pressure against the treatment site while maximizing the suction field. The suction body is manufactured of a soft, compliant material, such as an elastomeric polymer, to allow the suction channel to be transformed into the coiled conformation without deformation sufficient to defeat its purpose of use, i.e., clinging to the surface of a treatment site under partial vacuum.

Abstract translation: 本发明提供了用于临时远程地固定组织局部区域（例如跳动心脏上的组织的局部区域）或其他内部器官的稳定装置和方法，从而允许其上进行微创或机器人手术。 耦合到真空源的发明稳定装置的特征在于安装在诸如可导向导管的杆状器械的可转向尖端上的弹性抽吸体。 该柔性或可操纵的尖端和细长的吸入通道的尺寸适于通过小的手术开口引入到内部体腔中。 安装在装置的近端处的转向机构用于将细长末端和抽吸通道线圈成体腔内的环形或马蹄形。 优选地，吸入通道具有柔性的可展开的外缘部分，其被设计成在处理部位的表面上向外平坦化并向外展开，因为空气从盘旋抽吸通道排出，以将压力分配到治疗部位上，同时最大化吸入场 。 吸入体由柔软的柔顺材料制成，例如弹性体聚合物，以允许吸入通道转化成卷曲结构，而不会产生足够的变形，以破坏其使用目的，即粘附于治疗部位的表面 在部分真空下。

公开(公告)号：US06338710B1

公开(公告)日：2002-01-15

申请号：US09293334

申请日：1999-04-16

Applicant: Masao Takahashi ,  Elazer E. Edelman ,  Kenneth W. Carpenter

Inventor： Masao Takahashi ,  Elazer E. Edelman ,  Kenneth W. Carpenter

IPC: A61F200

CPC classification number: A61B17/02 ,  A61B2017/00464 ,  A61B2017/0243 ,  A61B2017/306

Abstract: The present invention provides a flexible suction body and method of its use for temporarily immobilizing a local area of tissue during surgery or a diagnostic procedure. The invention device and method are particularly well suited for immobilizing a local area of heart tissue to thereby permit surgery, for example, minimally invasive or micro-surgery, on a coronary vessel without significant deterioration of the pumping function of the beating heart. The invention suction device, which is coupled to a vacuum source, has a ring- or horseshoe-shaped suction channel with a flexible, spreadable outer rim that flattens and spreads outwardly against the surface of the treatment site as air is withdrawn from the suction channel. This design distributes the pressure of the suction body against the treatment site while maximizing the suction field to minimize bruising and suction hemorrhage at the treatment site caused by the suction body. In one embodiment, the suction body is sized for attachment to the tip of a hollow endoscopic catheter, with the hole in the center of the suction body being mounted around the periphery of the hollow catheter tip and allowing for passage from the catheter into the treatment site of a needle, or trocar for injecting materials such as drugs or genetic constructs into the treatment site or for piercing a treatment site, such as a solid tumor, to remove fluid or tissue therefrom for diagnosis. The suction body is preferably manufactured of a soft, compliant material, such as an elastomeric polymer, to conform to the surface of the heart and may be contoured in overall shape to further enhance its conformation to a contoured surface, such as the surface of the heart.

Abstract translation: 本发明提供了一种柔性抽吸体及其用于在手术或诊断过程中临时固定组织局部区域的方法。 本发明的装置和方法特别适用于固定心脏组织的局部区域，从而允许在冠状血管上进行手术，例如微创或微创手术，而不会使跳动心脏的泵送功能显着恶化。 联接到真空源的本发明抽吸装置具有环形或马蹄形的抽吸通道，其具有柔性的可展开的外缘，当空气从吸入通道中排出时，该吸入通道在处理部位的表面上向外平展和向外扩展 。 该设计将抽吸体的压力分配到处理部位，同时最大化吸入场，以最大限度地减少吸引体造成的治疗部位的瘀伤和抽吸出血。 在一个实施例中，抽吸体的尺寸适于附接到中空内窥镜导管的尖端，吸入体的中心中的孔围绕中空导管尖端的周边安装并允许从导管通过到治疗 针头的位置或用于将诸如药物或遗传构建体的材料注射到治疗部位或刺穿诸如实体瘤的治疗部位的套管针以从其中去除流体或组织用于诊断。 抽吸体优选地由软的柔顺材料（例如弹性体聚合物）制成，以符合心脏的表面，并且可以形成整体形状，以进一步增强其与轮廓表面的构象，例如 心。