Title:
像形成、電位検出型及び切除カテーテル
Document Type and Number:
Japanese Patent JP3898754
Kind Code:
B2
Abstract:
An acoustic imaging system for use within a heart has a catheter (6), an ultrasound device (10) incorporated into the catheter (6), and an electrode (300, 304, 334, 394) mounted on the catheter (6). The ultrasound device (10) directs ultrasonic signals toward an internal structure in the heart to create an ultrasonic image, and the electrode (300, 304, 334, 394) is arranged for electrical contact with the internal structure. A chemical ablation device (55, 86, 314, 396) mounted on the catheter (6) ablates at least a portion of the internal structure by delivery of fluid to the internal structure. The ablation device (55) may include a material that vibrates in response to electrical excitation, the ablation being at least assisted by vibration of the material. The ablation device may alternatively be a transducer (414) incorporated into the catheter (6), arranged to convert electrical signals into radiation and to direct the radiation toward the internal structure. The electrode may be a sonolucent structure (304, 334) incorporated into the catheter (6).
More Like This:
Inventors:
Able, John Yee
Crawley, Robert Jay
Charles Dean, Lennox
Ropiaac, Susan M
Roberts, Troy W
Buddet, steven pee
Crawley, Robert Jay
Charles Dean, Lennox
Ropiaac, Susan M
Roberts, Troy W
Buddet, steven pee
Application Number:
JP50411795A
Publication Date:
March 28, 2007
Filing Date:
July 01, 1994
Export Citation:
Assignee:
Boston Scientific Limited
International Classes:
A61B8/12; A61B17/32; A61B17/22; A61B18/12; A61B18/14; A61B17/00; A61B19/00
Domestic Patent References:
| JP2180275A | ||||
| JP62200341U | ||||
| JP2152466A | ||||
| JP4282146A | ||||
| JP4285549A | ||||
| JP368362A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Hiroyuki Uchida
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Hiroyuki Uchida