公开(公告)号：US20130300036A1

公开(公告)日：2013-11-14

申请号：US13625053

申请日：2012-09-24

申请人： Eric John Wilkowske ,  Allan Manuel Fuentes ,  Xiaoping Guo ,  Xuan Yen Khieu ,  Linda Kay Nemec ,  Richard E. Stehr

发明人： Eric John Wilkowske ,  Allan Manuel Fuentes ,  Xiaoping Guo ,  Xuan Yen Khieu ,  Linda Kay Nemec ,  Richard E. Stehr

IPC分类号： B29D23/00

CPC分类号： B29D23/00 ,  A61M25/0012 ,  A61M25/0045 ,  A61M25/005 ,  A61M25/0147

摘要： The present invention is a method of manufacturing a flexible tubular body for catheter, sheath or similar medical device. The method comprises pre-extruding an inner layer of the body from a thermoplastic polymer and then pulling the inner layer over a mandrel and tightening the layer down. If wire lumens were not integrally formed in the inner layer when pre-extruded, then two polymer spaghetti tubes, each with wire lumens, are laid 180 degrees apart axially along the outer surface of the inner layer. Deflection wires are then fed into the wire lumens. A cylindrical wire braid is woven or pulled over the inner layer (and the spaghetti tubes, as the case may be) and tightened down. The aforementioned components are then encased in an outer polymer layer. A heat-shrinkable tube is then placed over the outer layer. A pressurized fluid is injected into each wire lumen to maintain the internal diameter of each wire lumen at a diameter that is greater than the diameter of the deflection wire received in each wire lumen. Heat is then applied to the body and heat-shrinkable tube to cause the layers to laminate together. Once the newly laminated body has sufficiently cooled, the heat-shrinkable tube is removed from the body.

摘要翻译： 本发明是制造用于导管，鞘或类似医疗装置的柔性管体的方法。 该方法包括从热塑性聚合物预挤出主体的内层，然后将内层在心轴上拉动并将层紧固。 如果在预挤出时线内部未整体地形成在内层中，则将两根具有线腔的聚合物意大利面条沿着内层的外表面轴向地分开180度。 然后将变形线送入线腔内。 圆柱形编织物被编织或拉过内层（和意大利面条管，视情况而定）并收紧。 然后将上述组分封装在外聚合物层中。 然后将热收缩管放置在外层上。 加压流体被注入到每个线腔中，以将每个线腔的内径保持在大于每个线腔内接收的偏转线的直径的直径。 然后将热量施加到身体和热收缩管，以使层压在一起。 一旦新层压体已经充分冷却，热收缩管就从体内去除。

公开(公告)号：US08273285B2

公开(公告)日：2012-09-25

申请号：US11033098

申请日：2005-01-10

申请人： Eric John Wilkowske ,  Allan Manuel Fuentes ,  Xiaoping Guo ,  Xuan Yen Khieu ,  Linda Kay Nemec ,  Richard E. Stehr

发明人： Eric John Wilkowske ,  Allan Manuel Fuentes ,  Xiaoping Guo ,  Xuan Yen Khieu ,  Linda Kay Nemec ,  Richard E. Stehr

IPC分类号： B29C43/00

CPC分类号： B29D23/00 ,  A61M25/0012 ,  A61M25/0045 ,  A61M25/005 ,  A61M25/0147

摘要： The present invention is a method of manufacturing a flexible tubular body for catheter, sheath or similar medical device. The method comprises pre-extruding an inner layer of the body from a thermoplastic polymer and then pulling the inner layer over a mandrel and tightening the layer down. If wire lumens were not integrally formed in the inner layer when pre-extruded, then two polymer spaghetti tubes, each with wire lumens, are laid 180 degrees apart axially along the outer surface of the inner layer. Deflection wires are then fed into the wire lumens. A cylindrical wire braid is woven or pulled over the inner layer (and the spaghetti tubes, as the case may be) and tightened down. The aforementioned components are then encased in an outer polymer layer. A heat-shrinkable tube is then placed over the outer layer. A pressurized fluid is injected into each wire lumen to maintain the internal diameter of each wire lumen at a diameter that is greater than the diameter of the deflection wire received in each wire lumen. Heat is then applied to the body and heat-shrinkable tube to cause the layers to laminate together. Once the newly laminated body has sufficiently cooled, the heat-shrinkable tube is removed from the body.

摘要翻译： 本发明是制造用于导管，鞘或类似医疗装置的柔性管体的方法。 该方法包括从热塑性聚合物预挤出主体的内层，然后将内层在心轴上拉动并将层紧固。 如果在预挤出时线内部未整体地形成在内层中，则将两根具有线腔的聚合物意大利面条沿着内层的外表面轴向地分开180度。 然后将变形线送入线腔内。 圆柱形编织物被编织或拉过内层（和意大利面条管，视情况而定）并收紧。 然后将上述组分封装在外聚合物层中。 然后将热收缩管放置在外层上。 加压流体被注入到每个线腔中，以将每个线腔的内径保持在大于每个线腔内接收的偏转线的直径的直径。 然后将热量施加到身体和热收缩管，以使层压在一起。 一旦新层压体已经充分冷却，热收缩管就从体内去除。