公开(公告)号：US20050288742A1

公开(公告)日：2005-12-29

申请号：US10876313

申请日：2004-06-24

申请人： James Giordano ,  Daniel Dlugos ,  William Hassler

发明人： James Giordano ,  Daniel Dlugos ,  William Hassler

IPC分类号： A61N1/378 ,  A61N1/08

CPC分类号： A61N1/3787

摘要： Adjustable gastric band implants contain a hollow elastomeric balloon with fixed end points encircling a patient's stomach just inferior to the esophago-gastric junction. These balloons can expand and contract through the introduction of saline solution into the balloon. In current bands, this saline solution must be injected into a subcutaneous port with a needle to reach the port located below the skin surface. The port communicates hydraulically with the band via a catheter. As an alternative to using a percutaneously accessed injection port, a system for regulating the flow of saline that is totally implanted may rely upon bi-directionally pumping fluid from an implant device. This system instead transfers AC magnetic flux energy from an external primary coil to a secondary coil that powers the pump in the implanted reservoir. A magnetically permeable rod centered within the primary coil increases power coupled to the secondary coil.

摘要翻译： 可调节的胃带植入物包含一个中空的弹性球囊，其中固定的终点围绕患者的胃，恰好比食管 - 胃交界处更差。 这些气球可以通过将盐溶液引入气球而膨胀和收缩。 在目前的条件下，这种盐溶液必须用针头注射到皮下端口到达位于皮肤表面下方的端口。 端口通过导管与水槽液压连接。 作为使用经皮访问的注射口的替代方案，用于调节完全植入的盐水流的系统可以依赖于从植入装置双向泵送流体。 该系统代替地将AC磁通能量从外部初级线圈传递到为植入的储存器中的泵供电的次级线圈。 在初级线圈中心的导磁棒增加耦合到次级线圈的功率。

公开(公告)号：US20050267500A1

公开(公告)日：2005-12-01

申请号：US10856971

申请日：2004-05-28

申请人： William Hassler ,  Daniel Dlugos ,  Rocco Crivelli

发明人： William Hassler ,  Daniel Dlugos ,  Rocco Crivelli

IPC分类号： A61B17/00 ,  A61F2/00 ,  A61F5/00 ,  A61B17/08

CPC分类号： A61F5/0003

摘要： A remotely controlled gastric band system that is practically immune to external magnetic fields, such as from a Magnetic Resonance Imaging (MRI) machine, incorporates a bi-directional pump and fluid reservoir to adjust fluid volume for hydraulic control of a gastric band. A piezoelectric driver (e.g., rotary actuator, linear actuator) selectively compresses and expands a metal bellows hermetically sealed within a biocompatible and nonferromagnetic enclosure or case such as titanium. Directly sensing a position of the metal bellows yields an accurate reading of volume contained therein, allowing for closed-loop control of the gastric band.

摘要翻译： 实际上免受外部磁场的远程控制的胃带系统，例如来自磁共振成像（MRI）机器，包括双向泵和流体储存器，以调节用于胃束带的液压控制的流体体积。 压电驱动器（例如，旋转致动器，线性致动器）选择性地压缩和膨胀密封在生物相容性和非铁磁性外壳内的金属波纹管，例如钛。 直接感测金属波纹管的位置可以准确读取其中所含的体积，从而允许对胃带进行闭环控制。