Title:
塞栓防止装置及び関連する使用方法
Document Type and Number:
Japanese Patent JP2005535380
Kind Code:
A
Abstract:
An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface is provided on a proximal portion of the tube and is configured to form a seal with a lumen of a guided catheter. A distal sealing surface is provided on a distal portion of the tube and is configured to form a seal with a blood vessel. Obturator assemblies and infusion catheter assemblies are provided to be used with the evacuation sheath assembly. A method of treatment of a blood vessel using the evacuation sheath assembly includes advancing the evacuation sheath assembly into the blood vessel through a guide catheter. Normal antegrade blood flow in the blood vessel proximate to the stenosis is stopped and the stenosis is treated. Retrograde blood flow is induced within the blood vessel to carry embolic material dislodged during treating into the evacuation sheath assembly. If necessary to increase retrograde flow, the coronary sinus may be at least partially occluded. Alternatively, antegrade flow may be permitted while flow is occluded at the treatment site.
More Like This:
Inventors:
Lesseman, Thomas Buoy.
Hackett, Stephen S.
Das Babec, Andrew Jay.
Waha, Dennis W.
Hackett, Stephen S.
Das Babec, Andrew Jay.
Waha, Dennis W.
Application Number:
JP2004527521A
Publication Date:
November 24, 2005
Filing Date:
September 26, 2002
Export Citation:
Assignee:
Velocimed, Limited Liability Company
International Classes:
A61L29/00; A61B17/12; A61B17/22; A61F2/06; A61F2/82; A61F2/84; A61M25/00; (IPC1-7): A61M29/00; A61M25/00
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinozaki Masami
Masaya Nishiyama
Jun Tsuruta
Tetsuro Shimada
Shinozaki Masami
Masaya Nishiyama