Title:
METHOD FOR HOLDING OPENING PROPERTY OF INTRADUCTAL CATHETER AND COLOM
Document Type and Number:
Japanese Patent JP2998836
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To hold the opening property of the colom for a time enough to feed a radiation source to the colom by expanding an expandable region so as to be brought in contact with the colom and inserting a radiation source wire into a blind lumen so as to perfuse the blood, while providing the radiation source to the coeloma.
SOLUTION: An expandable region 12' is expanded and an artery is held in an opened state, while holding the opening property of the artery and the blood flow passing the expanded region. A radiation source wire 51 is inserted into an adjacent end of a blind lumen 50 and a radiation source 51 which is positioned in a distant end of the radiation source 51 is advanced so as to be positioned in a part of the coronary artery which is intended to receive the dosage. The expandable region 12' is held in such a state as being expanded for a time enough to irradiate the dosage for breaking the cell with restricture. The design of the expandable region 12' holds the opening property of the artery in a treatment and holds the flow of the blood flow passing the region 12' in the both sides so as to allow the long-time treatment.
Inventors:
Joseph P. Lefler
Application Number:
JP13205497A
Publication Date:
January 17, 2000
Filing Date:
May 22, 1997
Export Citation:
Assignee:
Advanced Cardiovascular Systems, Inc.
International Classes:
A61M25/04; A61F2/966; A61N5/10; A61M29/00; (IPC1-7): A61M25/04; A61M29/00; A61N5/10
Domestic Patent References:
| JP9154949A | ||||
| JP3176073A | ||||
| JP8173553A | ||||
| JP8299461A | ||||
| JP810332A | ||||
| JP215160U |
Other References:
【文献】国際公開96/13303(WO,A1)
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)
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