Title:
超音波撮像及び超音波治療のための固体ヒドロゲル結合物、及びにその音響的結合方法並びにヒドロゲルマス作製方法
Document Type and Number:
Japanese Patent JP2005527336
Kind Code:
A
Abstract:
The present invention employs hydrogels as acoustic couplings for clinical applications of ultrasound imaging and therapy, but is particularly applicable to high intensity focused ultrasound (HIFU) based therapy. While other materials can be used, it has been determined that polyacrylamide is sufficiently robust and transmissive to withstand the high temperatures encountered in HIFU therapy. One embodiment of a hydrogel coupling is configured in shape and size (length) to ensure that a focal region of an ultrasound transducer is disposed proximate the target area when the distal tip of the transducer is in contact with tissue. These couplings can be shaped to correspond to the beam focus characteristics of specific transducers. Water can be applied to hydrate the tip of the hydrogel coupling during use, and medication absorbed into the hydrogel material can be applied to the tissue in contact with the distal surface of the hydrogel.
Inventors:
Sharham Vaegie
Adrian Procop
Roy martin
Peter Kachikovsky
Misty Noble
Adrian Procop
Roy martin
Peter Kachikovsky
Misty Noble
Application Number:
JP2004508882A
Publication Date:
September 15, 2005
Filing Date:
May 30, 2003
Export Citation:
Assignee:
University of Washington
International Classes:
A61B19/00; A61B8/00; A61B18/00; A61K41/00; A61K49/22; A61N7/02; A61P35/00; A61N; (IPC1-7): A61B8/00; A61B18/00; A61B19/00; A61K41/00; A61P35/00
Domestic Patent References:
| JPS62192150A | 1987-08-22 | |||
| JP2001212155A | 2001-08-07 | |||
| JPH03133435A | 1991-06-06 | |||
| JPH0349754A | 1991-03-04 | |||
| JPH06327693A | 1994-11-29 | |||
| JPH0747078A | 1995-02-21 | |||
| JPS6238143A | 1987-02-19 |
Foreign References:
| DE19509004C1 | 1996-10-24 | |||
| FR2627977A1 | 1989-09-08 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe