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1. 发明授权

US08029494B2 Method of removing biliary stones with coaxial catheter device 有权
标题翻译：用同轴导管装置去除胆石的方法
公开(公告)号：US08029494B2
公开(公告)日：2011-10-04
申请号：US11585513
申请日：2006-10-24
申请人： Kulwinder S. Dua , Greg J. Skerven , David M. Hardin, Jr. , Kenneth J. Fearn , Pushkar S. Mukewar
发明人： Kulwinder S. Dua , Greg J. Skerven , David M. Hardin, Jr. , Kenneth J. Fearn , Pushkar S. Mukewar
IPC分类号： A61M31/00
CPC分类号： A61M25/1006 , A61M25/007 , A61M2025/1077 , A61M2025/109
摘要： A method of removing an obstruction in the biliary duct including the steps of providing a coaxial catheter device comprising an inner catheter having a proximal end and a distal end wherein at least two or more lumens are formed between the proximal end and distal end of the inner catheter. The method includes providing an outer catheter having a proximal end and a distal end and an opening wherein the inner catheter is coaxially engaged through the opening of the outer catheter thereby forming a coaxial space between the inner catheter and the outer catheter wherein at least one of the two or more lumens is configured for receiving a fluid for inflating a balloon, at least one of the first lumen and the second lumen is configured for receiving a wire guide and the coaxial space is configured for receiving a flushing fluid for the removal of an obstruction within the biliary duct.
摘要翻译：一种去除胆管中阻塞物的方法，包括提供包括具有近端和远端的内导管的同轴导管装置的步骤，其中至少两个或更多个腔在内侧的近端和远端之间形成导管。该方法包括提供具有近端和远端的外导管和开口，其中内导管同轴地接合穿过外导管的开口，从而在内导管和外导管之间形成同轴空间，其中至少一个所述两个或多个管腔构造成用于接收用于使气囊膨胀的流体，所述第一管腔和所述第二管腔中的至少一个构造成用于容纳线引导件，并且所述同轴空间构造成用于接收冲洗流体以移除胆管内阻塞。

2. 发明授权

US06746489B2 Prosthesis having a sleeve valve 有权
公开(公告)号：US06746489B2
公开(公告)日：2004-06-08
申请号：US09876520
申请日：2001-06-07
申请人： Kulwinder S. Dua , Scott T. Moore , John A. Karpiel
发明人： Kulwinder S. Dua , Scott T. Moore , John A. Karpiel
IPC分类号： A61F236
CPC分类号： A61F2/04 , A61F2/86 , A61F2002/044
摘要： Disclosed is a pressure sensitive prosthesis (10) that includes a tubular member (11) having a passageway (12) extending therethrough and a sleeve (13) attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen (15) in a first direction (17) and under a first pressure, while collapsing in response to fluid flowing in a second direction 18 where the pressure that exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent (60), such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow.

3. 发明授权

US06302917B1 Anti-reflux esophageal prosthesis 有权
标题翻译：抗反流食管假体
公开(公告)号：US06302917B1
公开(公告)日：2001-10-16
申请号：US09386173
申请日：1999-08-31
申请人： Kulwinder S. Dua , Scott T. Moore
发明人： Kulwinder S. Dua , Scott T. Moore
IPC分类号： A61F236
CPC分类号： A61F2/04 , A61F2/86
摘要： An esophageal prosthesis (10) for preventing reflux of gastric fluids through the esophagus. The esophageal prosthesis process includes a tubular frame (11) with a sleeve (13) disposed around and longitudinally along the tubular frame as well as extending from the distal end (14) of the frame. The lower portion (28) of the sleeve has a readily collapsible lumen (15) that forms a one-way valve for preventing the reflux of gastric fluids in an antegrade manner through the esophagus. Fluids however readily flow through the sleeve in a antegrade direction. In response to a pressure build up in the stomach of a patient wanting to belch or vomit, the lower portion of the sleeve inverts through the passage (12) of the tubular frame, thereby relieving the pressure build up or voiding the patient's stomach. The tubular frame includes a plurality (19) of self-expanding zig-zag wire stents (20, 21, and 23) that maintain the patency of the esophagus and, in particular, the lower esophageal sphincter and any tumor that is causing stricture of the esophagus.
摘要翻译：食管假体（10），用于预防胃液通过食道的反流。食管假体过程包括管状框架（11），其具有围绕管状框架并且纵向设置并且从框架的远端（14）延伸的套筒（13）。套筒的下部（28）具有容易折叠的内腔（15），其形成用于通过食道以顺序的方式防止胃液回流的单向阀。然而，流体容易沿顺流方向流过套筒。响应于想要呕吐或呕吐的患者的胃中的压力积聚，套筒的下部通过管状框架的通道（12）反转，从而缓解压力积聚或使患者的胃排空。管状框架包括多个（19）自扩张之字形线支架（20,21和23），其保持食道的通畅性，特别是食管下括约肌和导致狭窄的任何肿瘤食道。

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