Nhut Diep,Tom Allen Ditter,Raymond Estrada,Kristine Fuimaono,Debby Grunewald,Ryan Hoitink,Eduardo Jimenez,Armida Manriquez
申请号：
US13736794
公开号：
US20140194716A1
申请日:
2013.01.08
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A catheter having a distal assembly with multiple spines with proximal ends affixed to the catheter and free distal ends. The spines have different lengths so distal ends of the spines trace different circumferences along an inner tissue surface of a tubular region to minimize risk of vein stenosis. The spine lengths can be configured so that the distal ends trace a helical pattern. The distal assembly may have a plunger which deflects the spines when moved longitudinally relative to the distal assembly. The catheter may include a second distal assembly distal of a first distal assembly wherein the first and second distal assemblies are separated by a fixed distanced or an adjustable distance.
