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1. 发明授权

US5676784A Method of fabricating a heater coil for a catheter used to monitor cardiac output 失效
标题翻译：制造用于监测心输出量的导管的加热器线圈的方法
公开(公告)号：US5676784A
公开(公告)日：1997-10-14
申请号：US404893
申请日：1995-03-15
申请人： Thomas Haynes McGaffigan
发明人： Thomas Haynes McGaffigan
IPC分类号： A61B5/028 , A61M25/00 , G01F1/00 , B65H81/00 , B23P11/02 , B32B31/00 , H05B3/00
CPC分类号： A61M25/0012 , A61B5/028 , Y10T29/49083 , Y10T29/49865
摘要： A heater (12) for a catheter (10) used in monitoring constant cardiac output is fabricated using a bifilar wire (21) coated with polyvinyl chloride (PVC) like the material used for the catheter. The bifilar wire is coated with the PVC using a conventional extrusion technique, producing a coated lead (24, 32). This coated lead is wrapped around the exterior surface of the catheter, forming a helical coil. Heat is applied to the coated lead to melt the PVC coating, causing it to bond the lead to the catheter. The melted PVC also flows into gaps (23) or notches between adjacent coils of the lead, producing a relatively smooth outer surface for the heater coil when the PVC coating cools. The bifilar wire can alternatively be wrapped in-line with PVC tape (29) or film and the PVC material heated to flow around the wire, bonding it to the catheter's outer surface.
摘要翻译：用于监测恒定心输出量的导管（10）的加热器（12）使用涂覆有诸如用于导管的材料的聚氯乙烯（PVC）的双股线（21）来制造。使用常规的挤出技术将双绞线用PVC涂覆，生产涂层引线（24,32）。该涂覆的导线缠绕在导管的外表面上，形成螺旋线圈。对涂覆的铅施加热量以熔化PVC涂层，使其将导线粘合到导管上。熔融的PVC也流入相邻线圈之间的间隙（23）或切口，当PVC涂层冷却时，加热器线圈的外表面相对平滑。双绞线可以替代地与PVC带（29）或膜一起包裹，并且PVC材料被加热以围绕导线流动，将其粘合到导管的外表面。

2. 发明授权

US09814515B2 Laparoscopic medical device with de-mateable tip 有权
公开(公告)号：US09814515B2
公开(公告)日：2017-11-14
申请号：US13250046
申请日：2011-09-30
申请人： Thomas Haynes McGaffigan , Sharad H. Joshi
发明人： Thomas Haynes McGaffigan , Sharad H. Joshi
IPC分类号： A61B18/04 , A61B18/18 , A61B18/14 , A61B18/08 , A61B17/29 , A61B17/00
CPC分类号： A61B18/1445 , A61B17/29 , A61B18/085 , A61B2017/0046 , A61B2017/00473 , A61B2017/294
摘要： A laparoscopic instrument assembly with a handle member and a removable tip. The handle member and removable tip are mated using a double threaded design which provides a secure connection with low electrical resistance. Electrical energy is provided through an inner shaft to the removable tip, and a return energy path is formed using an outer tubing of the instrument assembly. The removal tip includes a cutting and sealing device with a resistive member that is provided with the electrical energy, thereby enabling the tip to cut and seal tissue.

3. 发明授权

US07771424B2 Integrated metalized ceramic heating element for use in a tissue cutting and sealing device 有权
标题翻译：用于组织切割和密封装置的集成金属化陶瓷加热元件
公开(公告)号：US07771424B2
公开(公告)日：2010-08-10
申请号：US11080479
申请日：2005-03-16
申请人： Thomas Haynes McGaffigan
发明人： Thomas Haynes McGaffigan
IPC分类号： A61B18/12
CPC分类号： A61B18/085 , A61B2017/00084 , A61B2017/00473
摘要： A tissue cutting and sealing device, having a pair of opposing elements dimensioned to grasp tissue therebetween; and a heating assembly on at least one of the opposing elements, wherein the heating assembly includes: a ceramic body; and a metalized portion extending along a top surface of the ceramic body. The top surface of the ceramic body preferably has a width greater than the metalized portion.
摘要翻译：一种组织切割和密封装置，具有一对相对的元件，其尺寸被设计成在其间夹住组织; 和至少一个相对元件的加热组件，其中所述加热组件包括：陶瓷体; 以及沿着陶瓷体的顶表面延伸的金属化部分。陶瓷体的顶面优选具有大于金属化部分的宽度。

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