Medical devices with visibility-enhancing features
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United States of America Patent
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Issued Date -
Feb 6, 2014
app pub date -
Aug 8, 2013
filing date -
Sep 29, 2006
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Abandoned
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Abstract
A method and apparatus are disclosed for a medical device, including a means for enhancing visibility under imaging which, while reducing the local mechanical strength, avoids compromising the overall device effectiveness or safety. Visibility under imaging is increased by a non-uniform distribution of visibility-enhancing features as a function of the local stresses expected during use. One embodiment is for a medical device comprising an elongate member having proximal and distal regions, wherein the distal region comprises: a first echogenic region including a plurality of circumferential first region cuts, each of the first region cuts having a first region cut volume; and a second echogenic region, distal of the first echogenic region, including a plurality of circumferential second region cuts, wherein each of the second region cuts has a second region cut volume greater than said first region cut volume.
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