Title:
【発明の名称】ガイドワイヤ進入式超音波切除装置
Document Type and Number:
Japanese Patent JP2505709
Kind Code:
B2
Abstract:
An ultrasonic ablation device for effecting ultrasonic ablation of intravascular obstructions such as plaque or thrombi. The ultrasonic ablation device has a) an elongate catheter body, b) a wave guide or ultrasound transmission wire extending through the elongate catheter body, and c) a distal head or probe member positioned at the distal end of the catheter body. A guidewire lumen or passageway extends longitudinally through the catheter body and a guidewire aperture or passageway extends through the distal head or probe such that a guidewire may be passed through the distal head or probe and through the catheter body. Also disclosed is an improved distal head or probe which may be incorporated in any elongate ultrasonic ablation device, the improvement comprising the formation of a concavity or indentation in the distal or frontal face of the distal head or probe to improve the cavitation created thereby.
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Inventors:
NITA HENRII
FURUEGAA RATSUSERU
FURUEGAA RATSUSERU
Application Number:
JP50868693A
Publication Date:
June 12, 1996
Filing Date:
November 02, 1992
Export Citation:
Assignee:
BAXTER INT
International Classes:
A61B17/22; A61B18/00; A61F2/00; (IPC1-7): A61B17/36
Other References:
【文献】米国特許3565062(US,A)
Attorney, Agent or Firm:
Nobuyuki Matsubara (2 others)