公开(公告)号：US20150238243A1

公开(公告)日：2015-08-27

申请号：US14710288

申请日：2015-05-12

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： FRANK W. INGLE ,  LEONARD J. GEORGE ,  JOANN HEBERER ,  RAPHAEL HON

IPC: A61B18/02

CPC classification number: A61B18/02 ,  A61B2017/22051 ,  A61B2018/00166 ,  A61B2018/00172 ,  A61B2018/0022 ,  A61B2018/00577 ,  A61B2018/0212 ,  A61B2018/0262

Abstract: Apparatus and methods for cooling liquid coolant, such as nitrous oxide, to be delivered to a cryo-ablation device such as a balloon catheter. A hose or conduit in fluid communication with the ablation device includes an outer member and inner tubes. A first inner tube disposed within a lumen of the outer member carries liquid coolant to the ablation device. Another inner tube also disposed within the lumen carries liquid coolant and terminates within the lumen such that gaseous coolant derived from liquid coolant flowing through the second inner tube flows within the lumen to cool or chill the first inner tube and liquid coolant carried by the first inner tube to the ablation device.

公开(公告)号：US20130289550A1

公开(公告)日：2013-10-31

申请号：US13938086

申请日：2013-07-09

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： FRANK W. INGLE ,  ROBERT F. BENCINI ,  JOSEF V. KOBLISH ,  JONATHAN A. WOHLGEMUTH ,  PAUL A. ROCHE

IPC: A61B18/02

CPC classification number: A61B18/02 ,  A61B2017/22051 ,  A61B2017/22054 ,  A61B2018/00196 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/0262 ,  A61M25/1011

Abstract: Apparatus and methods for performing cryogenic ablation of tissue and adjusting the size and/or location of a cryogenic cooling region. A cooling assembly may include tubes for dispensing and exhausting a coolant or refrigerant. One or both of the tubes may be moved, e.g., slidably adjusted, in order to adjust the location or size of a cryogenic ablation region. The cooling assembly may be integrated into cryogenic ablation devices including a cryogenic balloon device that includes an inner inflatable balloon and another balloon that is at least partially wrapped around the inner balloon and carries refrigerant for performing cryo-ablation. Electrodes permit electrical mapping of tissue before or after cryo-ablation to verify success of the procedure.