Abstract: A device is presented including a medical device adapted to be inserted in an anatomy. The medical device has many target markers. A magnetic resonance imaging (MRI) system will not detect or will disregard the medical device as noise without information obtained on the plurality of target markers prior to insertion of the medical device into the anatomy. Also presented a method including inserting a medical device into an anatomy. The medical device has many target markers. Scanning a magnetic resonance image (MRI) of the anatomy. Processing the scanned image by a MRI processor connected to a memory. Determining a location and orientation of the medical device in relation to the anatomy based on the target markers. And displaying a precise image of the medical device within the anatomy. The medical device is not detectable or disregardable as noise for MRI systems.

Abstract: A method of making a catheter having a catheter shaft, the method including axially deflecting at least a section of the catheter shaft. The shaft section is axially deflected in a first radial direction on the shaft circumference one or more times. In a presently preferred embodiment, the method further includes axially deflecting the shaft section in at least a second radial direction on the shaft one or more times. The axial deflection produces stress in at least a section of the polymeric tubular member which reduces the push force of the shaft and catheter. The invention is also directed to a catheter shaft formed using the method of the invention, the catheter shaft generally comprising a polymeric tubular member. The polymeric tubular member has a section with deflection-induced stress from axial deflection of the section, so that the shaft has a push force reduced by the axial deflection-induced stress.

Abstract: A device is presented including a medical device adapted to be inserted in an anatomy. The medical device has many target markers. A magnetic resonance imaging (MRI) system will not detect or will disregard the medical device as noise without information obtained on the plurality of target markers prior to insertion of the medical device into the anatomy. Also presented a method including inserting a medical device into an anatomy. The medical device has many target markers. Scanning a magnetic resonance image (MRI) of the anatomy. Processing the scanned image by a MRI processor connected to a memory. Determining a location and orientation of the medical device in relation to the anatomy based on the target markers. And displaying a precise image of the medical device within the anatomy. The medical device is not detectable or disregardable as noise for MRI systems.

Abstract: An apparatus for secure stent delivery where the stent is delivered by a catheter system including a foldable delivery balloon. The apparatus, embodied in a stent with tethering clips, enables the stent and delivery balloon to be mechanically interlocked during delivery of the stent. The tethering clips are coupled to a strut included in the stent and the clips are positionable in a releasable gripping relationship with a fold in the balloon. When the balloon is inflated, the tethering clips are pushed outward and the stent and balloon are no longer interlocked, allowing the stent to be expandable radially by the inflating balloon.