-
公开(公告)号：US20120172840A1
公开(公告)日：2012-07-05
申请号：US12981292
申请日：2010-12-29
IPC分类号： A61M25/00 , C08F214/18
CPC分类号： A61L29/085 , A61L2420/08 , A61M25/0012 , C08L27/20 , C08L77/12
摘要： In various embodiments, a surgical catheter is provided. The catheter may comprise one or more hydrophobic barrier layers made from an ethylene-pertfluoroethylenepropylene (“EFEP”) copolymer. Additionally, the catheter may comprise another polymer layer made from a reactive polar polymer. In at least one embodiment, the reactive polar polymer may be a modified-poly(ether block amide) (“PEBA”) copolymer, such as an amine-terminated PEBA. Moreover, in various embodiments, a composition is provided that may comprise a reactive polar polymer bonded to an EFEP copolymer.
摘要翻译： 在各种实施例中，提供了外科导管。 导管可以包括由乙烯 - 全氟乙烯丙烯（“EFEP”）共聚物制成的一个或多个疏水阻挡层。 另外，导管可以包括由反应极性聚合物制成的另一聚合物层。 在至少一个实施方案中，反应性极性聚合物可以是改性聚（醚嵌段酰胺）（“PEBA”）共聚物，例如胺封端的PEBA。 此外，在各种实施方案中，提供了可以包含与EFEP共聚物结合的反应性极性聚合物的组合物。
-
22.发明授权Ablation catheter with thermally mediated catheter body for mitigating blood coagulation and creating larger lesion 有权消融导管与热介导的导管体减轻血液凝固和创造更大的病变公开(公告)号：US08449537B2
公开(公告)日：2013-05-28
申请号：US11618692
申请日：2006-12-29
申请人： Hong Cao , Xiaoping Guo , Isaac Shai , Michael Yang , Kedar Ravindra Belhe , Saurav Paul , Chou Thao
发明人： Hong Cao , Xiaoping Guo , Isaac Shai , Michael Yang , Kedar Ravindra Belhe , Saurav Paul , Chou Thao
IPC分类号： A61B18/18
CPC分类号： A61B18/1492 , A61B2018/00005 , A61B2018/00357
摘要： An ablation catheter is provided for ablating internal tissue of a patient. The catheter includes a distal end that is adapted to be inserted into a body cavity relative to a desired location therein (e.g., within the heart). An ablation electrode is connected relative to the distal end of the catheter for providing ablation energy to patient tissue. A heat sink is provided that is in thermal contact with the ablation electrode. The heat sink, in addition to being in thermal contact with the ablation electrode, is electrically isolated from the ablation electrode. This allows the heat sink to conduct heat away from the ablation electrode without dissipating electrical energy from the electrode. In this regard, the heat sink may prevent build-up of excess heat within the electrode that may result in blood coagulation and/or tissue charring.
摘要翻译： 提供消融导管以消融患者的内部组织。 该导管包括适于相对于其中的期望位置（例如，在心脏内）插入体腔内的远端。 消融电极相对于导管的远端连接，以向患者组织提供消融能量。 提供与消融电极热接触的散热器。 除了与消融电极热接触之外，散热器与消融电极电隔离。 这允许散热器将热量从消融电极导出，而不会从电极中消耗电能。 在这方面，散热器可以防止在电极内积聚多余的热量，从而导致血液凝固和/或组织烧焦。
-
公开(公告)号：US20060151923A1
公开(公告)日：2006-07-13
申请号：US11033098
申请日：2005-01-10
申请人： Eric Wilkowske , Allan Fuentes , Xiaoping Guo , Xuan Khieu , Linda Nemec , Richard Stehr
发明人： Eric Wilkowske , Allan Fuentes , Xiaoping Guo , Xuan Khieu , Linda Nemec , Richard Stehr
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.
-
公开(公告)号：US06632200B2
公开(公告)日：2003-10-14
申请号：US09734391
申请日：2000-12-11
申请人： Xiaoping Guo , Richard Stehr , Daniel J. Potter
发明人： Xiaoping Guo , Richard Stehr , Daniel J. Potter
IPC分类号： A61M500
CPC分类号： A61M39/06 , A61M39/0606 , A61M2039/0633 , A61M2039/064 , A61M2039/0653 , A61M2039/0686
摘要： A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a proximal valve gasket and a distal valve gasket compressed against the valve gasket by the valve housing, wherein the proximal valve gasket is the same shape as the distal valve gasket.
摘要翻译： 一种止血插管单元，包括阀壳体，帽和止血阀，其中所述止血阀包括近端瓣膜垫片和通过所述阀壳体抵靠所述阀垫片压缩的远端阀垫片，其中所述近端瓣膜垫片是相同的形状 作为远端阀垫片。
-
公开(公告)号：US10238776B2
公开(公告)日：2019-03-26
申请号：US12981292
申请日：2010-12-29
摘要： In various embodiments, a surgical catheter is provided. The catheter may comprise one or more hydrophobic barrier layers made from an ethylene-pertfluoroethylenepropylene (“EFEP”) copolymer. Additionally, the catheter may comprise another polymer layer made from a reactive polar polymer. In at least one embodiment, the reactive polar polymer may be a modified-poly(ether block amide) (“PEBA”) copolymer, such as an amine-terminated PEBA. Moreover, in various embodiments, a composition is provided that may comprise a reactive polar polymer bonded to an EFEP copolymer.
-
公开(公告)号：US06551283B1
公开(公告)日：2003-04-22
申请号：US09491221
申请日：2000-01-25
申请人： Xiaoping Guo , Richard Stehr
发明人： Xiaoping Guo , Richard Stehr
IPC分类号： A61M5178
CPC分类号： A61M39/06 , A61M39/0606 , A61M2039/0633 , A61M2039/064 , A61M2039/0653 , A61M2039/0686
摘要： A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a valve gasket and a valve membrane compressed against the valve gasket by the valve housing, wherein the valve gasket is thicker than the valve membrane.
摘要翻译： 一种止血插管单元，包括阀壳体，帽和止血阀，其中所述止血阀包括阀垫片和通过所述阀壳体压靠所述阀垫片的阀膜，其中所述阀垫片比所述阀膜厚。
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.026 秒)
