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公开(公告)号：US5250025A
公开(公告)日：1993-10-05
申请号：US819452
申请日：1992-01-10
CPC分类号： A61M25/1011 , A61B17/221 , A61B17/22022 , A61B18/26
摘要： A percutaneous access catheter is employed for examining and treating internal body cavities and organs via an access tract. For example, the catheter can be employed for examining and treating the gallbladder via a transhepatic tract. The examination may employ endoscopic, fluoroscopic, ultrasonic, or other techniques; the treatment may employ surgical, chemical, or physical modalities. The catheter includes two inflation elements. These inflation elements control hemorrhaging and leakage of fluids from the internal body cavity or organ and reduce migration of the catheter within the internal body cavity or organ during the examination and/or treatment. The first inflation element is a toroidal elastic balloon located at the distal end of the device which serves to restrict the accidental or unintended removal of the distal end from the internal body cavity or organ. The second inflation device is an inflatable nondistensible sleeve which serves to anchor the device to the access tract during the medical procedure. The two inflation elements can act cooperatively so as to anchor the internal body cavity or organ to the access tract and so as to reduce the migration of the distal end of the device within the internal body cavity or organ. The inflation of the inflatable nondistensible sleeve can also serve to control hemorrhaging from the access tract by the application of tamponage without causing unwanted dilation thereof.
摘要翻译： 采用经皮通路导管，通过入路检查和处理内部体腔和器官。 例如，导管可用于通过经肝脏管检查和治疗胆囊。 检查可采用内窥镜，荧光镜，超声波或其他技术; 治疗可以采用手术，化学或物理方式。 导管包括两个充气元件。 这些通气元件控制流体从内部体腔或器官的出血和泄漏，并且在检查和/或治疗期间减少导管在内部体腔或器官内的迁移。 第一膨胀元件是位于装置的远端处的环形弹性球囊，其用于限制远端从内部体腔或器官的意外或非预期的移除。 第二充气装置是可膨胀的不可靠的套筒，其用于在医疗过程期间将装置锚定到进入管道。 两个充气元件可以协同地起作用以将内部体腔或器官锚固到进入管道上，并且减小装置在内部体腔或器官内的远端的迁移。 可膨胀不可渗透的套管的膨胀也可以用于通过施用棉塞来控制从进入管道出血而不引起不希望的扩张。
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