High Intensity Focused Ultrasound Therapeutic System Guided by an Imaging Device

• US 20100174188A1
• Filed: 02/13/2007
• Published: 07/08/2010
• Est. Priority Date: 08/24/2006
• Status: Abandoned Application

• Current Assignee: Chongqing Ronghai Medical Ultrasound Industry Ltd.
• Original Assignee: Chongqing Ronghai Medical Ultrasound Industry Ltd.
• Inventors: Zhang, Lian, Wang, Hai, Wang, Long, Gu, Yue
• Application Number:
  US12/377,799
• Publication Number:
  US 20100174188A1
• Time in Patent Office: Days
• US Class Current: 600/439
• CPC Class Codes: A61B 2090/374 NMR or MRI
• CPC Class Codes: A61B 2090/376 using X-rays, e.g. fluoroscopy
• CPC Class Codes: A61B 5/055 involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: A61B 5/704 Tables
• CPC Class Codes: A61N 7/02 Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

A high intensity focused ultrasound therapeutic system guided by an imaging device is provided and includes an ultrasound therapeutic applicator which contains an ultrasound transducer (8), a therapeutic bed (11), on which a patient (17) lies, and an imaging device used for imaging a diseased tissue (3). Wherein, the imaging device is a non-ultrasound imaging device with two-dimensional imaging function. The ultrasound transducer (8) with the diameter of focal core (23) ranging from 0.1 mm to 5 mm, preferably, ranging from 0.2 mm to 2 mm, in a biological focal region (2) located in the diseased tissue (3) is adopted. The non-ultrasound imaging device is a CT or an MRI device with two-dimensional imaging function. The present invention can image the target accurately, so it can be applied to all kinds of complicated surgeries and has good therapeutic effects.

Claims

1. A high intensity focused ultrasound therapeutic system guided by an imaging device comprising an ultrasound therapeutic applicator, which contains an ultrasound transducer (8), a therapeutic bed (11), on which a patient lies, and an imaging device used for imaging the diseased tissue;

wherein, said imaging device is a non-ultrasound imaging device with two-dimensional imaging function, and the ultrasound transducer with the diameter of focal core ranging from 0.1 mm to 5 mm in the biological focal region is adopted.

2. The ultrasound therapeutic system as claimed in claim 1, wherein said ultrasound transducer (8) with the diameter of focal core ranging from 0.2 to 2 mm in the biological focal region is adopted.

3. The ultrasound therapeutic system as claimed in claim 1, wherein there is an opening (10) on said therapeutic bed (11), and the ultrasound therapeutic applicator is located under the opening.

4. The ultrasound therapeutic system as claimed in claim 3, wherein said ultrasound therapeutic applicator further comprises a container (9), which is connected under said opening (10) and full of degassed water, and the ultrasound transducer (8) is located in said container.

5. The ultrasound therapeutic system as claimed in claim 4, wherein said container (9) has a full open structure.

6. The ultrasound therapeutic system as claimed in claim 4, wherein said opening (10) on the therapeutic bed (11) is covered by a membrane with pores which covers the upper part of the container (9), forming a half-open structure.

7. The ultrasound therapeutic system as claimed in any one of claims 1-6, wherein said non-ultrasound imaging device for imaging the diseased tissue is a CT or an MRI device with the function of two-dimensional imaging.

8. The ultrasound therapeutic system as claimed in any one of claims 3-6, wherein when an MRI device is adopted for the non-ultrasound imaging device, the first surface coil (14) for receiving the imaging information from imaging device is installed at one side of the therapeutic bed for holding the patient;

the first surface coil is fixed outside around the opening 10 on the therapeutic bed (11) and is connected to an imaging information receiving unit (5) of the MRI device.

9. The ultrasound therapeutic system as claimed in claim 8, wherein a second surface coil (16) for further receiving the imaging information from imaging device is arranged at the other side of the patient (17) and opposite to the first surface coil (14), and the second surface coil is connected to the imaging information receiving unit (5) of the MRI device.