Ultrasound brain lesioning system

• US 4,951,653 A
• Filed: 03/02/1988
• Issued: 08/28/1990
• Est. Priority Date: 03/02/1988
• Status: Expired due to Term

• Current Assignee: Laboratory Equipment Corporation
• Original Assignee: Laboratory Equipment Corporation
• Inventors: Sanghvi, Narendra T., Fry, Francis J.
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): Zele, John D.
• Application Number:
  US07/163,260
• Time in Patent Office: 909 Days
• Field of Search: 382/22, 128/653, 128/328, 128/24 A, 128/660.03
• US Class Current: 601/3
• CPC Class Codes: A61B 2090/374 NMR or MRI
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 8/0816 using echo-encephalography
• CPC Class Codes: A61B 90/10 for stereotaxic surgery, e.g. frame-based stereotaxis
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092

Abstract

An ultrasound brain lesioning system with ultrasound, CT or MRI site localization includes a skull fixation apparatus, a position data translating fixture and a computer-controlled ultrasound transducer. The skull fixation apparatus is utilized in combination with ultrasound, CT or MRI scan transparencies and with a digitizing tablet in order to transfer transparency data both as to skull fixation benchmarks and tumor locations into a computer. The transducer is cooperatively arranged with the translating system such that the benchmarks of the skull fixation apparatus are utilized to derive X, Y and Z linear coordinates and two rotary coordinates which are at right angles to one another which are also input into the computer such that the computer is then capable of automatically driving the transducer and positioning it at the appropriate location for producing volume lesions in the brain at the site of the identified brain tumors or other selected tissues.

Claims

1. A non-invasive ultrasound treatment system for translating visualization data of a diseased site in a patient into movement data for guiding an ultrasound transducer relative to said diseased site for treatment thereof, said ultrasound apparatus comprising:

transducer control means for an ultrasonic transducer moving said ultrasound transducer relative to said diseased site;

data transfer means for converting visualization data of the diseased site into spatial coordinate data and placing said spatial coordinate data into said transducer control means;

fixation means adapted to be attached to the patient and including landmark reference elements, said fixation means enabling a spatial relationship between said patient and said reference elements to be established; and

spatial translation means coupled to said transducer control means and designed and arranged for contacting with said landmark reference elements for establishing a spatial frame of reference for said ultrasound transducer relative to said patient and in turn relative to said diseased site.

2. The ultrasound treatment system of claim 1 wherein said transducer control means includes mechanical drive arrangements including drive motors and a computer means for controlling the drive motors.

3. The ultrasound treatment system of claim 2 wherein said data transfer means includes a digitizing tablet.

4. The ultrasound treatment system of claim 3 wherein said landmark reference elements include a plurality of spherical members.

5. The ultrasound treatment system of claim 4 wherein said spatial translation means includes mechanical linkage means designed and arranged for recording positional movement and including linear and rotary encoders.

6. The ultrasound treatment system of claim 1 wherein said data transfer means includes a digitizing tablet.

7. The ultrasound treatment system of claim 1 wherein said landmark reference elements include a plurality of spherical members.

8. The ultrasound treatment system of claim 1 wherein said spatial translation means includes mechanical linkage means designed and arranged for recording positional movement and including linear and rotary encoders.