Title:
ULTRASONIC WAVE IRRADIATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/1999/039677
Kind Code:
A1
Abstract:
A living body is irradiated with ultrasonic waves to decompose fats in the living body. In a low frequency range of from 15 to 50 kHz, the irradiation acoustic power surface density is higher than 10 mW/cm?2¿ not causing hemolysis in the living body; in a low frequency range of from 50 to 140 kHz, the irradiation acoustic power surface density is higher than 4 mW/cm?2¿ not causing hemolysis in the living body or within the safety standard value based on the mechanical index MI. In a high frequency range of from 180 to 700 kHz, the irradiation acoustic power surface density is higher than 10 mW/cm?2¿ or meets the safety standard value based on the MI; in a high frequency range of from 700 kHz to 1.3 MHz, the irradiation acoustic power surface density is higher than 800 mW/cm?2¿ or meets the safety standard value based on the MI.
Inventors:
MIWA HIROHIDE (JP)
KINO MASATO (JP)
KINO MASATO (JP)
Application Number:
PCT/JP1998/005032
Publication Date:
August 12, 1999
Filing Date:
November 09, 1998
Export Citation:
Assignee:
MIWA SCIENCE LAB INC (JP)
MIWA HIROHIDE (JP)
KINO MASATO (JP)
MIWA HIROHIDE (JP)
KINO MASATO (JP)
International Classes:
A61H23/02; A61N7/00; (IPC1-7): A61H23/02; A61F7/00
Foreign References:
| JPH09276354A | 1997-10-28 | |||
| JPH09248213A | 1997-09-22 | |||
| JPH09154910A | 1997-06-17 | |||
| JPH09108288A | 1997-04-28 | |||
| JPH0341064U | 1991-04-19 | |||
| JPH0489058A | 1992-03-23 | |||
| JPH03123559A | 1991-05-27 | |||
| EP0645131A2 | 1995-03-29 | |||
| US4372296A | 1983-02-08 | |||
| US4883045A | 1989-11-28 | |||
| FR989438A | 1951-09-10 | |||
| US5558092A | 1996-09-24 |
Other References:
See also references of EP 1060728A4
Attorney, Agent or Firm:
Sato, Tatsuhiko (Yoyogi 2-chome Shibuya-ku Tokyo, JP)
Download PDF: