# US 12,213,831 B2 · Ultrasound diagnosis apparatus with row-column addressing

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- Number: US 12,213,831 B2
- Document ID: US12213831B2
- Status: Granted
- Kind: B2
- Application number: 17/740,853
- Filed: 2022-05-10
- Published: 2022-11-17
- Granted: 2025-02-04
- Earliest claimed: 2021-05-11
- Assignees: Canon Medical Systems Corporation
- Applicants: Canon Medical Systems Corporation
- Inventors: Takeshi Sato
- Web page: https://patentgrep.com/patent/US12213831B2

## CPC

- A61B 8/14: Echotomography
- A61B 8/4494: {characterised by the arrangement of the transducer elements}
- A61B 8/5207: {involving processing of raw data to produce diagnostic data, e.g. for generating an image}
- A61B 8/54: {Control of the diagnostic device}
- G01S 7/5208: {with integration of processing functions inside probe or scanhead}
- G01S 15/8913: {using separate transducers for transmission and reception}
- G01S 15/8925: {the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays}
- G01S 15/8927: {using simultaneously or sequentially two or more subarrays or subapertures}
- G10K 11/346: {using phase variation}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR

## Abstract

An ultrasound diagnosis apparatus according to an embodiment includes an ultrasound probe and processing circuitry. The ultrasound probe includes a plurality of transducer elements arranged two-dimensionally and includes a plurality of transducer element groups of a Row-Column Addressing type in which, when ultrasound transmission is to be performed, a plurality of first transducer elements arranged in the direction of one of two axes intersecting each other are connected in common to one another and in which, when ultrasound reception is to be performed, a plurality of second transducer elements arranged in the direction of the other of the two axes are connected in common to one another. A plurality of sets that are each made up of the two axes and correspond to the plurality of transducer element groups of the Row-Column Addressing type are mutually different.

## Claims

### Claim 1

An ultrasound diagnosis apparatus comprising:
an ultrasound probe including a plurality of transducer elements arranged two-dimensionally and including a plurality of transducer element groups of a Row-Column Addressing type in which, when ultrasound transmission is to be performed, a plurality of first transducer elements arranged in a direction of one of two axes intersecting each other are connected in common to one another and in which, when ultrasound reception is to be performed, a plurality of second transducer elements arranged in a direction of the other of the two axes are connected in common to one another; and
processing circuitry configured to perform a beam forming process on a plurality of reception signals output from the plurality of transducer element groups, to generate ultrasound image data on a basis of a signal obtained from the beam forming processes, and to cause a display device to display an ultrasound image based on the ultrasound image data, wherein
each of the plurality of transducer element groups outputs, as each of the plurality of reception signals, a reception signal obtained by adding up signals output from the plurality of second transducer elements connected in common to one another,
a plurality of sets that are each made up of the two axes and correspond to the plurality of transducer element groups of the Row-Column Addressing type are mutually different,
with respect to the plurality of the transducer element groups, a direction in which a plurality of first transducer elements in one of the plurality of the transducer element groups connected in common to one another is arranged and a direction in which a plurality of first transducer elements in another of the plurality of the transducer element groups connected in common to one another is arranged are mutually different, and
a direction in which a plurality of second transducer elements in one of the plurality of the transducer element groups connected in common to one another arranged and a direction in which a plurality of second transducer elements in other of the plurality of the transducer element groups connected in common to one another arranged are mutually different.

### Claim 2 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein the processing circuitry is configured to add up two or more of the signals generated with respect to the plurality of the transducer element groups and obtained from two or more of the beam forming processes and is configured to generate the ultrasound image data on the basis of a signal resulting from the addition.

### Claim 3 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein, with respect to each of the plurality of transducer element groups, the processing circuitry is configured to perform the beam forming process on the plurality of reception signals output from the plurality of second transducer elements, without implementing apodization.

### Claim 4 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein the ultrasound probe includes the plurality of transducer element groups of the Row-Column Addressing type configured so that a product of an angular interval between the plurality of sets corresponding to the plurality of transducer element groups of the Row-Column Addressing type and a quantity of the plurality of transducer element groups of the Row-Column Addressing type is 90.

### Claim 5 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein the ultrasound probe includes the plurality of transducer elements configured by using Micromachined Ultrasonic Transducers (MUTs).

### Claim 6 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein each of the plurality of transducer element groups includes a plurality of first transducer element groups arranged in a direction of one of two axes corresponding to each of the plurality of transducer element groups and a plurality of second transducer element groups arranged in a direction of the other of the two axes corresponding to each of the plurality of transducer element groups.

### Claim 7 (depends on 6)

The ultrasound diagnosis apparatus according to claim 6, wherein each of the plurality of transducer element groups transmit an ultrasound wave, to which a transmission delay is applied, in the direction of the other of the two axes.

### Claim 8 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein the plurality of sets corresponding to the plurality of transducer element groups are arranged at different angles from each other.

### Claim 9 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein the direction in which the plurality of first transducer elements in one of the plurality of the transducer element groups connected in common to one another arranged is different from the direction in which the plurality of first transducer elements in other of the plurality of the transducer element groups connected in common to one another arranged by a 45-degree angle, and
the direction in which the plurality of second transducer elements in one of the plurality of the transducer element groups connected in common to one another arranged is different from the direction in which the plurality of second transducer elements in other of the plurality of the transducer element groups connected in common to one another arranged by the 45-degree angle.

### Claim 10 (depends on 1)

The ultrasound diagnosis apparatus according to claim 1, wherein, when ultrasound transmission is to be performed, ultrasound waves having transmission delay period in correspondence with each of the plurality of the transducer element groups are converged so as to propagate in a predetermined direction.