JACOB ROGER HAARTSEN,MARTINUS BERNARDUS VAN DER MARK,FRANCISCUS JOHANNES GERARDUS HAKKENS,MAURICE HUBERTUS ELISABETH VAN DER BEEK
申请号:
US15318730
公开号:
US20170119998A1
申请日:
2015.06.01
申请国别(地区):
US
年份:
2017
代理人:
摘要:
An elongated device, e.g. an interventional guide wire or catheter, comprises an optical fiber (OF) arranged to allow transmission of light to phase change material (PCM) arranged long the elongated device, for optically heating the phase change material (PCM) to change its stiffness from one stiffness value to a different stiffness value. Using distributed tilted or blazed Bragg gratings with light wavelength dependent unique grating periods along the optical fiber, it is possible to provide a guide wire or catheter which can be stiffness controlled at selected longitudinal portions. Especially, it may be preferred to be able to control the behavior of the tip of a guide wire or catheter for optimal navigation, e.g. during a FEVAR procedure. Portions of phase change material (PCM-1, PCM 2) arranged inside a tube material T_M can be activated at selected longitudinal parts of the elongated device.