公开(公告)号：US4690844A

公开(公告)日：1987-09-01

申请号：US665295

申请日：1984-10-26

申请人： Abdul S. Saudagar

发明人： Abdul S. Saudagar

IPC分类号： A61M25/00 ,  A61F2/06 ,  A61L27/18 ,  A61L29/00 ,  A61L29/06 ,  A61M25/16 ,  B29C33/62 ,  B29C37/00 ,  F16L11/04 ,  A01N1/02 ,  B05D3/02

CPC分类号： B29C37/0067 ,  A61F2/06 ,  A61L27/18 ,  A61L29/06 ,  B29C33/62

摘要： Disclosed are several methods of parting rubber from an underlying surface. Polyvinyl alcohol, methylcellulose, starch derivatives and dextran are all suitable parting agents of rubber. Polyvinyl pyrrolidone is a paticularly effective parting agent for use in the formation of balloon-type medical catheters; it is also useful as a parting agent in the formation of synthetic membranes, blood vessels and conduits. The invention includes the method of use of these parting agents as well as the products formed by the disclosed process(es). Also disclosed is a method of forming a synthetic blood vessel of a polymer material, e.g., polyurethane.

摘要翻译： 公开了从下面的表面分离橡胶的几种方法。 聚乙烯醇，甲基纤维素，淀粉衍生物和葡聚糖都是合适的橡胶分离剂。 聚乙烯吡咯烷酮是用于形成气球型医用导管的特别有效的分离剂; 它也可用作合成膜，血管和导管的形成中的脱模剂。 本发明包括使用这些脱模剂的方法以及由所公开的方法形成的产品。 还公开了形成聚合物材料如聚氨酯的合成血管的方法。

公开(公告)号：US4670313A

公开(公告)日：1987-06-02

申请号：US844522

申请日：1986-03-27

申请人： Abdul S. Saudagar

发明人： Abdul S. Saudagar

IPC分类号： A61F2/06 ,  A61L27/18 ,  A61L29/06 ,  B29C33/62 ,  B29C37/00 ,  A45B19/00 ,  A61M31/00

CPC分类号： B29C37/0067 ,  A61F2/06 ,  A61L27/18 ,  A61L29/06 ,  B29C33/62 ,  Y10T428/1386

摘要： Disclosed are several methods of parting rubber from an underlying surface. Polyvinyl alcohol, methylcellulose, starch derivatives and dextran are allsuitable parting agents for rubber. Polyvinyl pyrrolidine is a particularly effective parting agent for use in the formation of balloon-type medical catheters; it is also useful as a parting agent in the formation of synthetic membranes, blood vessels andconduits. The invention includes the method of use of these parting agents as well as the products formed by the disclosed process(es). Also disclosed is a method of forming a synthetic blood vessel of a polymer material, e.g., polyurethane.

摘要翻译： 公开了从下面的表面分离橡胶的几种方法。 聚乙烯醇，甲基纤维素，淀粉衍生物和葡聚糖都是适用于橡胶的分离剂。 聚乙烯吡咯烷是用于形成气球型医用导管的特别有效的脱模剂; 它也可用作合成膜，血管和导管的形成中的脱模剂。 本发明包括使用这些脱模剂的方法以及由所公开的方法形成的产品。 还公开了形成聚合物材料如聚氨酯的合成血管的方法。

公开(公告)号：US4555242A

公开(公告)日：1985-11-26

申请号：US572687

申请日：1984-01-19

申请人： Abdul S. Saudagar

发明人： Abdul S. Saudagar

IPC分类号： A61F2/00 ,  A61F5/445 ,  A61M25/00

CPC分类号： A61F5/445

摘要： An appliance for draining bodily wastes from the natural bladder of a patient, or from an artificial bladder, through a surgically-created stoma, includes a tube insertable into the bladder through the stoma, and an inflatable balloon enclosing a substantial portion of the length of the tube. The balloon has a corrugated tubular portion terminating in a bulbous tip portion. The tip is located at the end of the tube to be received in the bladder, while the corrugated portion extends along the length of the tube which is received in the passage from the bladder created by the stoma. An inflation fluid is introduced into the interior of the balloon through an inlet in an external retainer plug and through fluid passages and ports in the tube. The balloon has an expandable wall which is thicker in the tip portion than in the corrugated portion, so that the corrugated portion can be substantially fully inflated before the tip portion inflates. The tip portion, when inflated, forms a donut-shaped cushion around the end of the tube in the bladder, while the corrugated portion inflates to provide a fluid-tight seal around the tube.

摘要翻译： 用于从患者的天然膀胱或人造膀胱通过外科手术造成的造口排出身体废物的器具包括通过造口插入到膀胱中的管和可包围长度为 管子。 球囊具有终止于球状末端部分的波纹管状部分。 尖端位于待容纳在囊中的管的端部，而波纹状部分沿管的长度延伸，该管的长度被从造口产生的膀胱接收在通道中。 膨胀流体通过外部保持器塞中的入口并通过管中的流体通道和端口引入气囊的内部。 气囊具有在顶部比在波纹部分更厚的可膨胀壁，使得波纹部分在尖端部分膨胀之前可以基本上完​​全膨胀。 尖端部分在充气时在气囊中的管的端部周围形成环形垫，而波纹部分膨胀以提供围绕管的流体密封的密封。