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1. 发明申请

US20110213303A1 Reinforced Catheter Or Sheath With Reduced Friction Surface 有权
标题翻译：增强导管或护套减少摩擦面
公开(公告)号：US20110213303A1
公开(公告)日：2011-09-01
申请号：US12714589
申请日：2010-03-01
申请人： David Christian Lentz , David A. Drewes, JR.
发明人： David Christian Lentz , David A. Drewes, JR.
IPC分类号： A61M25/00 , A61M25/10 , B29C47/02
CPC分类号： B29C47/02 , A61M25/0012 , A61M25/0045 , A61M25/005 , A61M2025/006 , A61M2025/0062 , B29C47/0014 , B29C47/0023 , B29K2077/00 , B29L2031/7542
摘要： A reinforced catheter or sheath includes an inner tube manufactured via an extrusion process from a mixture of thermoplastic and hollow glass beads. The resultant tube exhibits an inner goose bump surface that defines a central lumen. A reinforcement, such as a braid and/or coil is attached to at least a segment of the outer surface of the inner tube. A second tube of thermoplastic is extruded over at least a portion of the reinforcement. The inner goose bump surface exhibits a net low coefficient of friction comparable to that of polytetrafluoroethylene (PTFE).
摘要翻译：增强的导管或护套包括通过挤出工艺从热塑性和中空玻璃珠的混合物制造的内管。所得管显示出限定中心腔的内部鹅凸起表面。诸如编织物和/或线圈的加强件附接到内管的外表面的至少一个部分。第二个热塑塑料管挤压在加强件的至少一部分上。内部鹅凸起表现出与聚四氟乙烯（PTFE）相当的净低摩擦系数。

2. 发明申请

US20090171323A1 Catheter assembly and fluid supply apparatus therefor 审中-公开
标题翻译：导管组件及其供液装置
公开(公告)号：US20090171323A1
公开(公告)日：2009-07-02
申请号：US12005177
申请日：2007-12-26
申请人： Tyson L. Rugenstein , Michael R. Kurrus , David A. Drewes, JR. , Gregory A. Frankland
发明人： Tyson L. Rugenstein , Michael R. Kurrus , David A. Drewes, JR. , Gregory A. Frankland
IPC分类号： A61M25/18
CPC分类号： A61M25/0028 , A61M39/223 , A61M2025/0037 , A61M2206/20
摘要： A catheter assembly includes a multi-lumen catheter and fluid supply apparatus for supplying fluid to said multi-lumen catheter. The fluid supply apparatus includes an inlet element for coupling to a supply of catheter fluid, a plurality of fluid outlet elements arranged to be each coupled to a respective lumen of the catheter and a flow splitter arranged between the inlet element and the outlet elements. The flow splitter is able to split or divert flow of fluid from the inlet to at least one of the plurality of outlets. For this purpose, the preferred embodiment includes a gate for directing fluid flow to one or more of the outlet elements. There may also be provided a diffuser and a nozzle.
摘要翻译：导管组件包括用于向所述多腔导管供应流体的多腔导管和流体供应装置。流体供应装置包括用于联接到导管流体供应的入口元件，多个流体出口元件，其布置成各自联接到导管的相应内腔，以及布置在入口元件和出口元件之间的分流器。分流器能够将流体从入口流到多个出口中的至少一个出口。为此，优选实施例包括用于将流体流引导到一个或多个出口元件的门。也可以设置扩散器和喷嘴。

3. 发明申请

US20100163159A1 LARGE DIAMETER DELIVERY CATHETER/SHEATH 有权
标题翻译：大直径输送管/管
公开(公告)号：US20100163159A1
公开(公告)日：2010-07-01
申请号：US12719228
申请日：2010-03-08
申请人： Jay A. Dittman , David A. Drewes, JR.
发明人： Jay A. Dittman , David A. Drewes, JR.
IPC分类号： B29C53/60
CPC分类号： A61M25/0012 , A61M25/0045 , A61M25/005 , A61M25/0053 , A61M25/0108 , A61M25/0662 , A61M2025/0047 , A61M2025/0059
摘要： A large diameter, flexible, kink-resistant, delivery catheter or sheath for percutaneous delivery of a contained and implantable medical device in the vasculature of a patient. The delivery catheter or sheath includes a reinforcement such as a flat wire coil with uniform spacing between the turns, which is compression fitted about an inner, lubricous PTFE tube. The delivery catheter or sheath further includes an outer tube of a heat formable polyamide material which is heat formed and compressed through the spaces between the turns of the wire coil to mechanically connect to a roughened outer surface of the inner tube. A polymeric radiopaque marker tube may be positioned at the distal end of the coil and between the inner and outer tubes for radiographic visualization. A side port may also be positioned thereat for the infusion of contrast media.
摘要翻译：大直径，柔性，扭结的输送导管或护套，用于经皮递送患者脉管系统中的容纳和可植入的医疗装置。输送导管或护套包括一个加强件，例如扁平线圈之间，在匝之间具有均匀的间隔，其被压配合在内部的，润滑的PTFE管周围。递送导管或护套还包括可热成型的聚酰胺材料的外管，其通过线圈的匝之间的空间热形成和压缩，以机械地连接到内管的粗糙的外表面。聚合物不透射线标记管可以定位在线圈的远端处，并且位于内管和外管之间用于放射照相可视化。侧端口也可以放置在其中用于输注造影剂。

4. 发明申请

US20090162585A1 JEJUNAL FEEDING TUBE 审中-公开
标题翻译： JEJUNAL进料管
公开(公告)号：US20090162585A1
公开(公告)日：2009-06-25
申请号：US12337394
申请日：2008-12-17
申请人： Jeffry S. Melsheimer , David A. Drewes, JR.
发明人： Jeffry S. Melsheimer , David A. Drewes, JR.
IPC分类号： B29D23/00
CPC分类号： B29D23/001 , A61M25/0009 , B29C48/001 , B29C48/09 , B29C48/10 , B29C48/12 , B29C48/13 , B29C48/131 , B29C48/30 , B29C48/32 , B29C48/355 , B29C48/90 , B29C48/9115 , B29C48/919 , Y10T428/13
摘要： The present invention provides a method of manufacturing a flexible tube. The method includes the steps of providing a source of material to be extruded and forming a tubular member with an extrusion die. The extrusion die includes a radially and outwardly extending tooth configured to define a protrusion upon the outer surface of the tubular member. The method further includes the step of rotating the tubular member after exiting the extrusion die such that the protrusion forms a helical profile along the length of the tubular member.
摘要翻译：本发明提供一种柔性管的制造方法。该方法包括以下步骤：提供要挤出的材料源并用挤压模形成管状构件。挤压模具包括径向和向外延伸的齿，其构造成在管状构件的外表面上限定突起。该方法还包括在离开挤出模头之后使管状构件旋转的步骤，使得突出部沿着管状构件的长度形成螺旋形轮廓。

5. 发明申请

US20090171318A1 Catheter with non-uniform wall thickness 有权
标题翻译：导尿管壁厚不均匀
公开(公告)号：US20090171318A1
公开(公告)日：2009-07-02
申请号：US12005192
申请日：2007-12-26
申请人： David A. Drewes, JR.
发明人： David A. Drewes, JR.
IPC分类号： A61M25/01
CPC分类号： A61M25/0043 , A61M25/0032 , A61M25/0054
摘要： A catheter having a non uniform wall thickness comprising first and second wall regions is described. The first region is thicker than the second region and at least a part of the first region comprises a material having a lower stiffness modulus than the second region. Typically, the ratio of stiffness between the first region and the second region is less than 1.25:1 and preferably approximately 1:1. The first region may comprise the same material as the second region but having a different formulation so that the stiffness modulus is altered. Alternatively, the regions may comprise different materials. The lower modulus material is coextruded into at least a part of the broadest/thicker cross sectional region(s).
摘要翻译：描述了具有包括第一和第二壁区域的非均匀壁厚的导管。第一区域比第二区域厚，并且第一区域的至少一部分包括具有比第二区域更低的刚度模量的材料。通常，第一区域和第二区域之间的刚度比小于1.25:1，优选地为约1:1。第一区域可以包括与第二区域相同的材料，但是具有不同的配方，使得刚度模量被改变。或者，区域可以包括不同的材料。较低模量的材料被共挤出到最宽/较厚的横截面区域的至少一部分中。

6. 发明申请

US20130053770A1 MEDICAL BALLOON AND BALLOON CATHETER ASSEMBLY 有权
标题翻译：医用气球和气囊导管总成
公开(公告)号：US20130053770A1
公开(公告)日：2013-02-28
申请号：US13593801
申请日：2012-08-24
申请人： Steen Aggerholm , David A. Drewes, JR. , Thomas Lysgaard
发明人： Steen Aggerholm , David A. Drewes, JR. , Thomas Lysgaard
IPC分类号： A61M25/098 , B29C47/06 , A61M25/10
CPC分类号： A61M25/1011 , A61B2090/3925 , A61L29/04 , A61L29/18 , A61M25/0108 , A61M25/10 , A61M25/1027 , A61M25/1029 , A61M2025/1013 , A61M2025/1075 , A61M2025/1079
摘要： A medical balloon (10) of a balloon catheter assembly (70) includes a balloon wall (22) formed of at least two layers (30, 32). The first layer (30) is made of an impervious polymeric material. The second layer (32), which is integral with the first layer (30) is made of a radiopaque and/or echogenic material and a polymeric material. In the preferred embodiment, there is provided 60 to 80% by weight of radiopaque material in the second layer (32). It has been found that these concentrations of radiopaque material provide good visibility of the balloon under ultrasonic imaging.
摘要翻译：气囊导管组件（70）的医用气囊（10）包括由至少两层（30,32）形成的球囊壁（22）。第一层（30）由不透水的聚合材料制成。与第一层（30）成一体的第二层（32）由不透射线和/或回声材料和聚合物材料制成。在优选实施方案中，在第二层（32）中提供了60至80重量％的不透射线材料。已经发现，这些不透射线材料的浓度在超声波成像下提供了球囊的良好可视性。

7. 发明申请

US20110282288A1 METHOD OF FORMING REINFORCED TUBING 有权
标题翻译：形成加强管道的方法
公开(公告)号：US20110282288A1
公开(公告)日：2011-11-17
申请号：US13128108
申请日：2009-11-16
申请人： David A. Drewes, JR. , Brett P. Baker
发明人： David A. Drewes, JR. , Brett P. Baker
IPC分类号： A61M25/00 , B29C53/58
CPC分类号： B32B37/00 , A61M25/0012 , A61M25/005 , B05D1/00 , B29C47/00 , B29C47/0026 , B29C53/12 , B29C66/8122 , B29D23/001 , B29K2071/00 , B29K2077/00 , B29L2009/005 , B29L2031/7542 , B32B1/08 , B32B7/12 , B32B27/08 , B32B27/285 , B32B27/32 , B32B27/322 , B32B27/34 , B32B27/40 , B32B2250/24 , B32B2307/412 , B32B2307/714 , B32B2307/736 , B32B2535/00 , F16L11/081 , B29K2827/18
摘要： A method of forming a reinforced tubular medical device in a continuous operation, and a medical device formed by the continuous method. An elongated core capable of movement about a line is provided. An elongated tubular member is formed around a moving length of the core by extruding a coating of a functionalized polymer around the moving core length, applying a reinforcing member to an outer surface of the functionalized polymer coating along the moving length, and extruding a polymeric outer jacket over the functionalized polymer and reinforcing member along the moving length, such that a bond is formed between the functionalized polymer and the polymeric outer jacket. The elongated tubular member is cut to desired length to form the tubular medical device, and the core is removed from the device.
摘要翻译：在连续操作中形成加强管状医疗装置的方法以及通过连续方法形成的医疗装置。提供能够围绕一条线移动的细长芯。通过在功能化芯长度周围挤压官能化聚合物的涂层，沿着移动长度将功能化聚合物涂层的外表面施加加强构件，并且将聚合物外层沿着移动长度夹在官能化聚合物和增强构件上，使得在官能化聚合物和聚合物外护套之间形成结合。将细长管状构件切割成所需长度以形成管状医疗装置，并且将芯从装置移除。

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