Ultrasound device for three-dimensional imaging of internal structure of a body part

• US 6,652,461 B1
• Filed: 01/22/2002
• Issued: 11/25/2003
• Est. Priority Date: 04/15/1999
• Status: Expired due to Fees

• Current Assignee: FRAY Project Limited
• Original Assignee: FRAY Project Limited
• Inventors: Levkovitz, Zeev
• Primary Examiner(s): Imam, Ali M.
• Application Number:
  US09/958,828
• Time in Patent Office: 672 Days
• Field of Search: 600/407-471, 600/493, 735/70--48, 367/117, 367/119-129, 367/153, 367/157, 367/173, 367/174, 367/180, 29/253.5, 295/94, 381/150, 381/151, 381/337-354, 381/173, 381/190, 128/916
• US Class Current: 600/443
• CPC Class Codes: A61B 8/04 Measuring blood pressure
• CPC Class Codes: A61B 8/13 Tomography A61B8/10, A61B8/12 take precedence; tomography for radiation diagnosis A61B6/02
• CPC Class Codes: A61B 8/4227 characterised by straps, belts, cuffs or braces
• CPC Class Codes: A61B 8/4427 Device being portable or laptop-like
• CPC Class Codes: A61B 8/4483 characterised by features of the ultrasound transducer
• CPC Class Codes: Y10S 128/916 Ultrasound 3-D imaging

Abstract

Ultrasound-based imaging device and software operated method are presented for monitoring a body part generating data indicative of a three-dimensional image of an internal structure of the body part. The device is portable and comprises a substantially elastic cover for covering the body part, wherein the cover is coupled to a control unit and is connectable to a computer device. The cover carries an array of ultrasonic transceivers, each of a kind emitting a beam of ultrasonic waves for irradiating an area within a region covered by the cover, and detecting signal response of the irradiated area. The transceivers are arranged in at least two spaced parallel groups. The transceivers of each group are arranged in a spaced-apart relationship, the space between each two adjacent transceivers in the group being such that an overlap exists between the areas irradiated by the adjacent transceivers.

Claims

1. An imaging device for monitoring a body part and generating data indicative of a three-dimensional image of an internal structure of the body part, the device comprising:

(i) a substantially elastic cover for covering the body part when in an operative position of the device

(ii) a control unit coupled to the cover;

(iii) an array of ultrasonic transceivers mounted on the cover each for emitting a beam of ultrasonic waves for irradiating an area within a region covered by the cover, and for detecting a signal response of the irradiated area, the array of the transceivers being composed of at least two spaced-apart parallel groups of the transceivers, wherein the transceivers of each group are arranged in a spaced-apart relationship, and the space between each two adjacent transceivers in the group is such that an overlap exists between the areas irradiated by the adjacent transceivers.

2. The device according to claim 1, wherein the cover, when in an inoperative position thereof, is in the form of a strap provided with two fasteners at its opposite ends for securing the cover on the body part when wrapped by the cover, while in the operational position thereof.

3. The device according to claim 1, wherein the cover is in the form of a sleeve open at opposite ends thereof so as to be put onto the body part.

4. The device according to claim 1, wherein the cover, when in an inoperative position thereof is in the form of a circle capable of forming a spherical part, when in the operative position of the cover.

5. The device according to claim 1, wherein each of the transceivers comprises a piezoelectric transducer.

6. The device according to claim 1, wherein said cover is formed with an inner disposable layer contacting the surface of the body during the operation of the device.

7. The device according to claim 1, wherein the control unit comprises a power source for activating the transceivers, and a synchronizer block for sequentially operating the transceivers.

8. An imaging system comprising an imaging device for monitoring a body part and generating data indicative of a three-dimensional image of an internal structure of the body part, a control unit for operating the imaging device, and a computer device connectable to the imaging device for processing data generated by the imaging device and constructing and displaying said three-dimensional image, wherein the imaging device comprises:

(i) a-substantially elastic cover for covering the body part when in an operative position of the device;

(ii) a control unit coupled to the cover;

(iii) an array of ultrasonic transceivers mounted on the cover each for emitting a beam of ultrasonic waves for irradiating an area within a region covered by the cover, and for detecting a signal response of the irradiated area, the array of the transceivers being composed of at least two spaced-apart parallel groups of the transceivers, wherein the transceivers of each group are arranged in a spaced-apart relationship, and the space between each two adjacent transceivers in the group is such that an overlap exists between the areas irradiated by the adjacent transceivers.

9. An imaging method for obtaining a three-dimensional image of an internal structure of a body part utilizing an imaging device having a cover for covering said body part and carrying at least two groups of ultrasonic transceivers, wherein an overlap exists between areas irradiated by each two locally adjacent transceivers in the group, the method comprising the steps of:

(a) sequentially operating each of the transceivers in one group for irradiating corresponding areas within a region covered by the cover, and generating data indicative of 360-degree section of the body part;

(b) repeating step (a) with respect to at least one other group of the transceivers, so as to generate data indicative of at least one further 360-degree section; and

(c) processing the generated data to construct said three-dimensional image of the internal structure of the body part.