Title:
【発明の名称】低輪郭の遠位端部を有する血管カテーテル
Document Type and Number:
Japanese Patent JP3367666
Kind Code:
B2
Abstract:
An ultrasonic imaging catheter comprises a catheter body having a distal region and proximal region. The distal region has a reduced cross-sectional area compared to that of the proximal region, and the proximal region includes at least two lumens therethrough for accommodating a movable guidewire and a rotatable working element, respectively. The catheter body may be inserted over the moveable guidewire, with the guidewire passing through a lumen in the distal region and the guidewire lumen in the proximal region. After positioning the catheter body, the guidewire can be retracted from the distal region and into the proximal region, leaving the lumen in the distal region available for the rotatable working element. Such a construction allows over-the-wire imaging of the catheter while minimizing the width of the catheter in the distal region which remains available for placement of the working element.
Inventors:
Yang Youte
Application Number:
JP50240892A
Publication Date:
January 14, 2003
Filing Date:
December 13, 1991
Export Citation:
Assignee:
Cardiovascular Imaging Systems Incorporated
International Classes:
A61B8/12; A61B8/14; A61B17/22; A61K49/00; A61M5/32; A61M25/00; A61B17/00; A61B17/34; A61B19/00; (IPC1-7): A61B8/12; A61M25/00
Domestic Patent References:
| JP5458992A | ||||
| JP62258676A | ||||
| JP6384521A | ||||
| JP2116380A | ||||
| JP2297380A | ||||
| JP60106640U | ||||
| JP6290653U |
Other References:
【文献】米国特許4748982(US,A)
【文献】米国特許4772268(US,A)
【文献】米国特許4842582(US,A)
【文献】米国特許4772268(US,A)
【文献】米国特許4842582(US,A)
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)