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1. 发明授权

US5141368A Automated side-drilled device and method for catheters 失效
标题翻译：导管自动侧钻装置及方法
公开(公告)号：US5141368A
公开(公告)日：1992-08-25
申请号：US501244
申请日：1990-03-20
申请人： Gary C. Bullard , William J. Gahara
发明人： Gary C. Bullard , William J. Gahara
IPC分类号： B23B41/00 , B23B47/28
CPC分类号： B23B47/28 , B23B41/00 , Y10S408/704 , Y10T408/03 , Y10T408/175 , Y10T408/51 , Y10T408/545
摘要： A device and method are provided for side-drilling of catheters. The method comprises storing side-drilling hole patterns, selecting a side-drilling hole pattern, positioning the catheter at successive locations defined by the pattern, and drilling holes at the locations. The device carries out the method to side-drill catheters.
摘要翻译：提供了用于导管侧钻的装置和方法。该方法包括存储侧钻孔图案，选择侧钻孔图案，将导管定位在由图案限定的连续位置处，以及在该位置处的钻孔。该装置执行侧导管的方法。

2. 发明授权

US5102324A Precision tipping device for surgical catheters 失效
标题翻译：手术导管的精密翻转装置
公开(公告)号：US5102324A
公开(公告)日：1992-04-07
申请号：US467896
申请日：1990-01-22
申请人： Gary C. Bullard , William J. Gahara
发明人： Gary C. Bullard , William J. Gahara
IPC分类号： A61M25/00 , B29C57/00
CPC分类号： A61M25/001 , B29C57/00 , B29L2031/7542
摘要： A device is provided for precision tipping catheters with repeatable accuracy. The device includes a die, a thermal heater for the die, a clamping pad for holding an untipped catheter in an aligned position, a lead screw for moving the catheter into and out of the die a precise distance, and a forced air cooler for cooling the tipped catheter. Preferably, the lead screw is rotated by a stepping motor.
摘要翻译：提供了具有可重复精度的精密翻转导管的装置。该装置包括模具，用于模具的热加热器，用于将未经处理的导管保持在对准位置的夹持垫，用于将导管移入和移出精确距离的导螺杆和用于冷却的强制空气冷却器尖头导管。优选地，导螺杆由步进马达旋转。

3. 发明授权

US5195970A Collapsible balloon catheters 失效
标题翻译：可折叠气球导管
公开(公告)号：US5195970A
公开(公告)日：1993-03-23
申请号：US692015
申请日：1991-04-26
申请人： William J. Gahara
发明人： William J. Gahara
IPC分类号： A61F2/958 , A61L29/04 , A61M25/00
CPC分类号： A61M25/1029 , A61L29/04 , A61M25/10 , A61M25/1027 , A61M2025/1084 , A61M25/1002
摘要： A flexible plastic inflatable and collapsible medical dilatation balloon and balloon catheter wherein the internal surface of the balloon has been formed with a longitudinal geometry that prevents a flat collapsed configuration of the balloon. The internal surface of the balloon is imparted with a small raised rib configuration, which maintains a minimal contact with the internal surface of the balloon, so that the ribs remain in place along the length of the balloon. The geometry so formed on the internal surface of the balloon also increases the pressures the balloon would normally withstand when the balloon is inflated to dilate a vein or artery. The internal surface geometry can be manufactured by extrusion methods.
摘要翻译：一种柔性塑料可膨胀和可折叠的医用膨胀气囊和气囊导管，其中气囊的内表面已经形成有防止气囊的扁平折叠构型的纵向几何形状。球囊的内表面具有小的凸肋结构，其保持与球囊的内表面的最小接触，使得肋沿气囊的长度保持在适当的位置。如此形成在球囊的内表面上的几何形状也增加了当气囊膨胀以膨胀静脉或动脉时球囊通常能承受的压力。内表面几何可以通过挤出方法制造。

4. 发明授权

US4995865A Multi-lumen catheters 失效
标题翻译：多腔导管
公开(公告)号：US4995865A
公开(公告)日：1991-02-26
申请号：US364799
申请日：1989-06-09
申请人： William J. Gahara , Thomas R. Johnson
发明人： William J. Gahara , Thomas R. Johnson
IPC分类号： A61M25/00 , A61M25/14
CPC分类号： A61M25/0026 , A61M1/3661 , A61M2025/0031 , A61M2025/004
摘要： Catheters having three lumens for injection and removal of fluids comprise an elongated tube having an integrally formed septum which extends throughout the length of the tube and defines the three lumens which may have the same or different cross-sectional areas. A smooth conical tapered tip is provided at the distal end of the tube and one of the lumens extends continuously through the tip to an opening at the apex of the tip. The other lumens extend continuously from the proximal end of the tube to openings in their sidewalls at a location axially spaced from the tip at the distal end. These catheters permit higher rates of fluid transfer in dialysis and like procedures than do double lumen catheters and are less prone to occlusion.
摘要翻译：具有用于注射和去除流体的三个腔的导管包括具有整体形成的隔膜的细长管，其在管的整个长度上延伸并且限定可具有相同或不同横截面积的三个腔。在管的远端处设置有平滑的圆锥形锥形尖端，并且一个管腔连续延伸穿过尖端到尖端的顶点处的开口。另一个腔从管的近端连续延伸到其侧壁中的开口，在远端处与尖端轴向间隔开的位置处。这些导管允许透析中的流体转移速率更高，并且与双腔导管相似，并且不容易闭塞。

5. 发明授权

US4950239A Angioplasty balloons and balloon catheters 失效
标题翻译：血管成形术气囊和球囊导管
公开(公告)号：US4950239A
公开(公告)日：1990-08-21
申请号：US230251
申请日：1988-08-09
申请人： William J. Gahara , Thomas R. Johnson , Tilak M. Shah
发明人： William J. Gahara , Thomas R. Johnson , Tilak M. Shah
IPC分类号： A61M25/00 , A61M29/02
CPC分类号： A61M25/104 , A61M25/1027 , A61M2025/1079 , A61M2025/1086 , A61M25/1029 , A61M25/1034
摘要： Angioplasty and related medical dilatation balloons are molded from a polyurethane in which the "soft" segment is a minor segment by weight and the "hard" segment is the major segment by weight and which polyurethane has a hardness of at least 75D and a glass transition temperature of more than about 38.degree. C. The balloons can be integrally molded on one end of a catheter fabricated from the above type of polyurethane. Alternatively, the balloon is formed from polyurethane of the above type and the catheter is formed from elastomeric polyurethane and like polymers commonly employed in preparation of catheters. The balloon is then bonded to the catheter by conventional procedures.
摘要翻译：血管成形术和相关的医用膨胀气球由聚氨酯模塑而成，其中“软”链段是次要重量，“硬”链段是主要链段，该聚氨酯具有至少75D的硬度和玻璃化转变温度大于约38℃。气球可以一体地模制在由上述类型的聚氨酯制成的导管的一端上。或者，气球由上述类型的聚氨酯形成，并且导管由通常用于制备导管的弹性体聚氨酯和类似聚合物形成。然后通过常规方法将气球粘合到导管。

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