Abstract:
Catheter (10) shafts and methods for making and using the same. An example catheter shaft (14) includes an elongate liner (20), a reinforcement member (22) disposed on the liner, and a sheath (24) disposed on the reinforcement member. The reinforcement member may include one or more circumferential (26, 28) and/or spot welds.
Abstract:
Described herein are medical balloons which contain one or more material regions that are configured to cause the balloons to preferentially fold into predetermined orientations upon deflation.
Abstract:
A medical appliance is provided that includes a self-expanding stent (10) ; a sheath (13) adapted to enclose the self -expanding stent in an interior space (18) during deployment; and an external body (11) comprising a bioactive agent attached to the self-expanding stent and adapted to lie outside the interior space of the sheath when the self-expanding stent is enclosed in the sheath. The medical appliance may be deployed in a lumen of a human body and the external body may release the bioactive agent .
Abstract:
A catheter (12) includes a tube (62) and a coil (64) at least partially surrounding the tube (62). The coil (64) includes a first portion (66) including a first material and a second portion (68) including a second material different from the first material. The second portion (68) of the coil (64) is disposed inwardly of the first portion (66) of the coil (64). The catheter (12) is configured so that it can be used as an innner cathether in an implantable medical endoprosthesis delivery systems (10).
Abstract:
Medical devices that include micromachined hypotubes or that have themselves been micromachined can provide advantages in flexibility, strength and other desirable properties. Examples of such medical devices may include catheters such as guide catheters and balloon catheters. Such devices may also include dual shaft medical devices in which an outer shaft is reversibly lockable onto an inner shaft.
Abstract:
An intravascular balloon catheter that may include, for example, a first elongate member having a proximal end, an opening at the distal end and a lumen therebetween, a balloon defining a cavity, the balloon having a proximal waist sealingly attached to the first elongate member proximal the distal end, a distal waist, and a tubular portion therebetween, a second elongate member having a proximal end, a distal end and a lumen therebetween, the second elongate member disposed in the first elongate member and sealingly attached to the balloon distal waist, and a stopper attached to the second elongate member and disposed in the balloon cavity distal the distal end of the first elongate member, the stopper having an outer profile that prevents movement of the first elongate member thereover the first elongate member having an inner diameter at the distal end large enough to permit the passage of fluid therethrough over the second elongate member.
Abstract:
The implantable medical endoprosthesis delivery systems generally include a tube (62) that is surrounded by a coil (64) and/or a spacer (200; 300; 400; 500; 600).
Abstract:
A catheter comprises a tube and a coil at least partially surrounding the tube. The coil includes a first portion comprising a first material and a second portion comprising a second material different from the first material. The second portion of the coil is disposed inwardly of the first portion of the coil The coil can be partially surrounded by a sheath. A portion of the tube and the coil can be surrounded along an axial length of the catheter by a coating. The catheter can be used, for example, in implantable medical endoprosthesis delivery systems (e.g. a stent).