Methods and apparatuses for collection of ultrasound data along different elevational steering angles

Patent metadata

Field	Value
Publication number	US-11617565-B2
Application number	US-202016900117-A
Country	US
Kind code	B2
Filing date	Jun 12, 2020
Priority date	Jun 14, 2019
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

Ultrasound devices and methods are described for collecting ultrasound data. An ultrasound device may include an ultrasound transducer array. The ultrasound device may collect ultrasound data along multiple elevational steering angles with respective apertures of different sizes. The ultrasound data may be used to perform a measurement or generate a visualization.

First claim

What is claimed is:

1. An ultrasound device, the ultrasound device comprising:
an ultrasound transducer array,
wherein:
the ultrasound device is configured to:
collect first ultrasound data using ultrasound waves focused along a first elevational steering angle with a first aperture of the ultrasound transducer array; and
collect second ultrasound data using ultrasound waves focused along a second elevational steering angle with a second aperture of the ultrasound transducer array, wherein the first elevational steering angle deviates more from a normal to an elevational dimension of the ultrasound transducer array than the second elevational steering angle;

the first aperture is a different size than the second aperture; and
the first aperture comprises a first number of elevational rows of the ultrasound transducer array, the second aperture comprises a second number of elevational rows of the ultrasound transducer array, and the first number is greater than the second number.

2. The ultrasound device of claim 1 , wherein the first number of elevational rows and the second number of elevational rows are between 8-64.

3. The ultrasound device of claim 1 , wherein the first and second elevational steering angles are among a plurality of elevational steering angles used in an ultrasound imaging sweep, and wherein the plurality of elevational steering angles includes between 30-50 steering angles.

4. The ultrasound device of claim 1 , wherein the first and second elevational steering angles are among a plurality of elevational steering angles that are varied with respect to an axis that is parallel to a skin line of a subject being imaged.

5. The ultrasound device of claim 1 , wherein the ultrasound device further comprises ultrasound circuitry, and the ultrasound device is configured, when collecting the first and second ultrasound data, to use the ultrasound circuitry to apply delays to the ultrasound waves at a point in time selected from a group consisting of:
prior to transmission, and
subsequent to reception.

6. The ultrasound device of claim 5 , wherein the ultrasound circuitry is integrated on a same die as the ultrasound transducer array.

7. The ultrasound device of claim 5 , wherein the ultrasound circuitry includes at least one of a waveform generator, a pulser, an analog processing block, an analog-to-digital converter, and a digital processing block.

8. The ultrasound device of claim 5 , wherein the ultrasound device is portable and the ultrasound transducer array and the ultrasound circuitry are contained within the portable ultrasound device.

9. The ultrasound device of claim 5 , wherein the ultrasound device is a handheld probe and the ultrasound transducer array and the ultrasound circuitry are contained within the handheld probe.

10. The ultrasound device of claim 5 , wherein the ultrasound device is a wearable patch and the ultrasound transducer array and the ultrasound circuitry are contained within the wearable patch.

11. The ultrasound device of claim 1 , wherein the ultrasound device is configured to operatively communicate with a processing device, and the ultrasound device is further configured to transmit at least one selected from a group consisting of:
the first and second ultrasound data, and
data generated based on the first and second ultrasound data to the processing device.

12. The ultrasound device of claim 11 , wherein the processing device is a smartphone, tablet, or laptop.

13. An ultrasound device, the ultrasound device comprising:
an ultrasound transducer array,
wherein:
the ultrasound device is configured to:
collect first ultrasound data using ultrasound waves focused along a first elevational steering angle with a first aperture of the ultrasound transducer array; and
collect second ultrasound data using ultrasound waves focused along a second elevational steering angle with a second aperture of the ultrasound transducer array;

the first aperture is a different size than the second aperture; and
the first elevational steering angle deviates more from a normal to an elevational dimension of the ultrasound transducer array than the second elevational steering angle, and the first aperture is larger than the second aperture.

14. The ultrasound device of claim 13 , wherein the ultrasound device is configured to collect the first ultrasound data and the second ultrasound data as part of a single scan.

15. The ultrasound device of claim 13 , wherein the ultrasound device is configured to collect the first ultrasound data and the second ultrasound data as part of a single ultrasound imaging sweep.

16. The ultrasound device of claim 15 , wherein the ultrasound imaging sweep comprises an elevational sweep.

17. The ultrasound device of claim 13 , wherein the ultrasound device is further configured to digitally beamform the first and second ultrasound data along an elevational dimension of the ultrasound transducer array.

18. The ultrasound device of claim 13 , wherein the ultrasound device is configured, when collecting the first and second ultrasound data, to collect ultrasound data from a bladder.

19. The ultrasound device of claim 13 , wherein the first and second elevational steering angles are among a plurality of elevational steering angles used in an ultrasound 1magmg sweep, and wherein the plurality of elevational steering angles includes between 30-50 steering angles.

20. The ultrasound device of claim 13 , wherein the first and second elevational steering angles are among a plurality of elevational steering angles that are varied with respect to an axis that is parallel to a skin line of a subject being imaged.

Assignees

• Bfly Operations Inc

Inventors

• Neben Abraham
• Sanchez Nevada J
• Thiele Karl

Classifications

• G01S15/8927

  using simultaneously or sequentially two or more subarrays or subapertures · CPC title

• G01S15/8915

  using a transducer array · CPC title

• G01S7/52085

  Details related to the ultrasound signal acquisition, e.g. scan sequences (control of medical diagnostic ultrasound devices A61B8/54) · CPC title

• G01S7/52082

  involving a modular construction, e.g. a computer with short range imaging equipment (modular ultrasonic medical diagnostic devices A61B8/4411) · CPC title

• G01S7/5208

  with integration of processing functions inside probe or scanhead · CPC title