Title:
詰まった血管通路を突き抜けて進むためのカテーテルシステム及び方法
Document Type and Number:
Japanese Patent JP5419965
Kind Code:
B2
Abstract:
A rotating cutting head catheter for passage through chronic total occlusions or other refractory atherosclerotic plaque from diseased arteries is disclosed. The catheter's rotating cutting head is designed to reside safely within an outer protective sheath when not in use. The outer protective sheath contains one or more helical grooves or slots, and the cutting head contains protruding blades or projections that fit into these helical grooves or slots. Application of torque to an inner catheter or wire attached to the cutting head applies spin to the cutting head, and the force of the sheath's helical grooves or slots against the cutting head's protruding blades or projections advances the cutting head outward from the protective sheath. Once extended, the cutting head may now rotate freely. The device may use a guidewire to direct the cutting head to the desired position.
Inventors:
Himanche N. Peter
John Bee Simpson
John Bee Simpson
Application Number:
JP2011506458A
Publication Date:
February 19, 2014
Filing Date:
April 23, 2009
Export Citation:
Assignee:
Avinger, Inc.
International Classes:
A61B17/32; A61B17/00; A61B18/00; A61B18/12; A61B18/20
Domestic Patent References:
| JP11347040A | ||||
| JP2006326157A |
Foreign References:
| US5192291 | ||||
| WO2008042987A2 |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Mitsuo Tanaka