IMPERIAL COLLEGE INNOVATIONS LIMITED;UNIVERSITY OF LEICESTER
发明人:
Mohammad Reza Bahmanyar,David Adlam
申请号：
US16089755
公开号：
US20200306512A1
申请日:
2017.03.29
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A medical device (1) for assisting the break-up, disruption or disintegration of calcified or other hardened material within vessels of the human or animal body which material otherwise prevents or inhibits stenting procedures or passage of guidewires, catheters and other devices through the vessels. The device comprises a catheter (2) having a lumen (9) extending between a distal end (5) and a proximal end (6) of the catheter and a displaceable element (4) at the distal end of the catheter configured for axial and/or radial displacement relative to the catheter when driven by pressure fluctuations within the lumen. A pressure pump (11) is coupled to a proximal end of the catheter and is configured for application of a baseline pressure to the catheter lumen. A pressure modulation source (12) is also coupled to the proximal end of the catheter, configured to modulate the baseline pressure in the catheter lumen with one or more pressure impulses, and preferably with a series of pressure pulses.
