Michiel DE JONG,Jacob Roger HAARTSEN,Maurice Hubertus Elisabeth VAN DER BEEK,Cornelis Gerardus Maria DE HAAS,Adrianus Wilhelmus Dionisius Maria VAN DEN BIJGAART
申请号：
US16622349
公开号：
US20200196836A1
申请日:
2018.06.21
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An invasive medical device (10) is disclosed comprising an elongate device portion (20) attached to a handle (30), the elongate device portion including a flexible tip (21) at a distal end of the elongate device portion and a plurality of pull wires (23) attached to said flexible tip； and a plurality of electrically conductive shape memory elements (33) entirely contained with in said handle, each of the shape memory elements coupled to and extending in a length direction between one of said pull wires and a current source connection (61) arranged to provide an electrical current to said electrically conductive shape memory element, each of the electrically conductive shape memory elements having a negative coefficient of expansion in said length direction. The invasive medical device (10) preferably comprises a cooling arrangement (70, 80) for the plurality of electrically conductive shape memory elements to reduce the relaxation times of the shape memory elements. Also disclosed are an invasive medical device arrangement including such an invasive medical device and an imaging system adapted to cooperate with such an invasive medical device arrangement.
