公开(公告)号：US20070066982A1

公开(公告)日：2007-03-22

申请号：US11229970

申请日：2005-09-19

Applicant: Justin Regner ,  Jacobo Nurko ,  J. Broadwater ,  Michael Edwards ,  William Culp

Inventor： Justin Regner ,  Jacobo Nurko ,  J. Broadwater ,  Michael Edwards ,  William Culp

IPC: A61B17/08

CPC classification number: A61B17/1114 ,  A61B2017/1135 ,  A61F2/04 ,  A61F2002/041 ,  A61M27/008

Abstract: A fistulary catheter for creating a sutureless mucosa-to-mucosa anastomosis. The catheter includes a rigid guide portion having a penetrating point and a fenestrated portion which has at least one fenestration communicating with a hollow interior and terminating in an opening which has an everted rim. The everted rim is desirably provided with a corrugated margin to grip the mucosa without compromising the blood supply. The guide portion may be hook shaped to guide the direction of the catheter or a metal probe may be used to guide a straight catheter. The guide portion may be flattened to minimize leakage around the guide portion. The fenestrated portion of the catheter may be straight or may be provided with varying degrees of tapering. The taper acts to hold the mucosa in place during the formation of the anastomosis. In an alternative embodiment, the fenestrated portion is straight without any taper and is used with spacers with differing diameters. The spacers are placed over the catheter so as to fit against the everted rim. Rather than employing the taper to hold the enteric mucosa in place, the thickness of the wall of the spacer defines a “lip” at its upper end to grip the mucosa.

Abstract translation: 用于产生无缝合粘膜 - 粘膜吻合的瘘导管。 该导管包括具有穿透点和开窗部分的刚性引导部分，其具有与中空内部连通的至少一个开窗，并且终止于具有外翻边缘的开口中。 优选地，所述外翻边缘设置有波纹状边缘以夹持粘膜而不损害血液供应。 引导部分可以是钩形的以引导导管的方向，或者可以使用金属探针来引导直的导管。 引导部分可以变平以使引导部分周围的泄漏最小化。 导管的开窗部分可以是直的或可以具有不同程度的锥形。 在形成吻合过程中，锥度用于将粘膜保持在适当的位置。 在替代实施例中，开窗部分是直的而没有任何锥形，并且与具有不同直径的间隔物一起使用。 将间隔物放置在导管上方以便与偏转的边缘相配合。 不是使用锥形来将肠粘膜保持在适当位置，所以间隔壁的厚度在其上端限定了一个“唇”来夹紧粘膜。