The Board of Trustees of the Leland Stanford Junior University
发明人:
Nicholas J. Mourlas,Christian Scott Eversull,Stephen Arie Leeflang,Asha Shrinivas Nayak,David John Miller
申请号：
US13893116
公开号：
US20130245371A1
申请日:
2013.05.13
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Apparatus and methods for locating features within a body cavity using a catheter including proximal and distal ends, a transparent balloon carried on the distal end, and an optical imaging assembly carried on the distal end for imaging through the balloon. The balloon includes a channel extending therethrough to a lumen extending through the catheter. A guidewire or other localization member is received in the lumen that is extendable through the channel. During use, the catheter is inserted into a right atrium of a heart, and the balloon is expanded and placed against the wall of the heart to locate the coronary sinus. Sufficient force is applied to clear blood between the surface and the wall and clear the field of view of the imaging assembly. The catheter is manipulated to locate the coronary sinus, whereupon the localization member is advanced into the coronary sinus.
