Abstract: Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor to bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
Type:
Grant
Filed:
June 4, 1999
Date of Patent:
July 4, 2000
Assignee:
THS International, Inc.
Inventors:
Edward C. Driscoll, Jr., Larry Crum, Wing K. Law, Stan DeMarta
Abstract: Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor to bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
Type:
Grant
Filed:
November 22, 1995
Date of Patent:
November 30, 1999
Assignee:
THS International, Inc.
Inventors:
Edward C. Driscoll, Jr., Lawrence A. Crum, Wing K. Law, Stan DeMarta
Abstract: Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor top bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
Type:
Grant
Filed:
June 24, 1996
Date of Patent:
March 16, 1999
Assignee:
THS International, Inc.
Inventors:
Edward C. Driscoll, Jr., Lawrence A. Crum, Wing K. Law, Stan DeMarta
Abstract: A High Intensity Focused Ultrasound system is provided for treatment of focal disease. The preferred embodiment includes an intracavity probe having two active ultrasound radiating surfaces with different focal geometries. Selectively energizing the first surface focuses therapeutic energy a first distance from the housing, energizing the second surface focuses therapeutic energy nearer the housing. Preferably, the probe includes a thin, flexible, inelastic membrane which is rigidized with pressure to allow blunt manipulation of tissue. Methods of use of the probe are also provided, particularly for treatment of diseases of the prostate.
Type:
Grant
Filed:
May 22, 1995
Date of Patent:
June 9, 1998
Assignee:
THS International, Inc.
Inventors:
Wing K. Law, Carl Hennige, Frank Fry, Narendra T. Sanghvi, Fred Miller, Paul Kendrick, Stan DeMarta