CN102266235A

CN102266235A - Medical ultrasound 2-d transducer array architecture: spot of arago

Info

Publication number: CN102266235A
Application number: CN2011101488131A
Authority: CN
Inventors: G·米勒
Original assignee: Toshiba Corp; Toshiba Medical Systems Corp
Current assignee: Canon Medical Systems Corp
Priority date: 2010-06-04
Filing date: 2011-06-03
Publication date: 2011-12-07
Anticipated expiration: 2031-06-03
Also published as: CN102266235B

Abstract

An ultrasound device including a main processing unit, a probe part, an array, and an apodization unit that receives an ultrasound signal from the array, the signal having multiple channels, that determines a weight for each channel based on an apodization profile being one of ring-centered and edge-centered, and that multiplies the received ultrasound signal by the determined weight for each channel. The array includes a first area including a first plurality of elements having a first functionality, a second area including a second plurality of elements having a second functionality, and a third area including a third plurality of elements having a third functionality different from the first functionality. The second area further includes a fourth area having a number of elements that are switchable between the second and third types of functionality. The array also includes a dynamic spot including the third and fourth areas.

Description

Diagnostic ultrasound equipment, ultrasound probe and ultrasound wave transmitting/receiving program

(cross reference of related application)

The application is based on the U.S. Patent application NO.12/794 formerly that submitted on April 6th, 2010,486 (corresponding to Japanese patent application 2011-106478) and to require it be priority, and its full content is by reference in conjunction with in this application.

Technical field

The present invention relates to a kind of diagnostic ultrasound equipment, ultrasound probe and ultrasound wave transmitting/receiving program.

Background technology

In the past, the two-dimensional ultrasonic vibrating elements was formed and uses a plurality of vibrating elementss to send reception simultaneously.The two-dimensional ultrasonic vibrating elements for example moves simultaneously as the array oscillator.When using a plurality of vibrating elements, essential fee of material and consumption electric power become big.U.S.Pat.No.6,783,497 (following record is a file 1) are recorded and narrated at the thinned array of only having used the fully intensive part of array oscillator.Thinned array has plural distinct area in order to send reception.But in file 1, because the array oscillator is of a size of static state and has circular open, therefore, the thinned array of recording and narrating in the file 1 does not have sufficient response.

(technological document formerly)

(patent document)

(patent document 1) United States Patent (USP) the 6th, 783, the 497B2 description

Summary of the invention

(problem that invention will solve)

The object of the present invention is to provide the diagnostic ultrasound equipment, ultrasound probe and the ultrasound wave transmitting/receiving program that use Ah loudspeaker's dagger-axe hot spot to improve picture quality by receiving according to hyperacoustic transmission.

(method of dealing with problems)

The diagnostic ultrasound equipment that present embodiment relates to, it is characterized in that, comprise: ultrasound probe, a plurality of the 1st oscillators with two-dimensional arrangements in comprising the 1st zone of open centre with around above-mentioned the 1st zone the 2nd regional in a plurality of the 2nd oscillators of two-dimensional arrangements; Sending part is supplied with the driving signal to above-mentioned the 1st oscillator and the 2nd oscillator; Acceptance division, according to by above-mentioned the 1st oscillator with and the echo-signal that produces of 2 oscillators, produce received signal; Transmission reception control part, execution are used for only supplying with the control of the above-mentioned sending part that drives signal and being used for only use at least one control by the control of the above-mentioned acceptance division of the echo-signal generation received signal of above-mentioned the 2nd oscillator generation to above-mentioned the 2nd oscillator.

(effect of invention)

Can use Ah loudspeaker's dagger-axe hot spot to improve picture quality by receiving according to hyperacoustic transmission.

Description of drawings

Figure 1A receives reserved area for expression elliptical openings relevant with present embodiment, that have circular spot portion has, sends the figure of the ultrasonic array oscillator of receiving area and transmission reserved area.

Figure 1B has the figure that receives reserved area, transmission receiving area and receive the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion.

Fig. 1 C receives reserved area for expression elliptical openings relevant with present embodiment, that have circular spot portion has, send the receiving area and the figure of the ultrasonic array oscillator of out of use speckle regions in the transmission reception.

The figure that Fig. 2 A receives reserved area, transmission receiving area and sends the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has.

The figure that Fig. 2 B receives reserved area, transmission receiving area and receives the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has.

The figure that Fig. 2 C receives reserved area, sends the ultrasonic array oscillator of receiving area and out of use speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has.

Fig. 3 A receives reserved area for expression has with the dynamic speckle elliptical openings portion relevant, that have dynamic speckle of present embodiment, sends the figure of the ultrasonic array oscillator in the 4th zone between receiving area and out of use speckle regions, out of use speckle regions and the transmission receiving area.

Fig. 3 B is relevant with present embodiment for expression, have when sending elliptical openings portion with the dynamic speckle that when receiving, varies in size have receive reserved area, send receiving area and out of use speckle regions, between out of use zone and transmission receiving area and can switch the figure of ultrasonic array oscillator in the 4th zone of out of use state and transmission accepting state.

Fig. 3 C is curve chart relevant with present embodiment, that will represent along with the variation of the size of the dynamic speckle of the process of time with the conduct that varies in size of dynamic speckle when receiving when sending.

Fig. 4 A for relevant with present embodiment, will be when sending with dynamic speckle when receiving vary in size and receive in the size of speckle dynamically change the curve chart that conduct is represented along with the variation of the size of the dynamic speckle of the process of time.

Fig. 4 B for relevant with present embodiment, will be when sending and the varying in size and the size variation conduct of dynamic speckle is represented along with the variation of the size of the dynamic speckle of the process of time in each switching that sends the wave beam between receiving curve chart of dynamic speckle when receiving.

Fig. 5 A sends receiving area, the 2nd figure that sends the receiving area and send the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion has the 1st.

Fig. 5 B sends receiving area, the 2nd figure that sends the receiving area and receive the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion has the 1st.

Fig. 5 C sends the figure that receiving area, the 2nd sends the ultrasonic array oscillator of receiving area and out of use speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion has the 1st.

Fig. 6 A sends receiving area, the 2nd transmission receiving area and the oval figure that sends the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has the 1st.

Fig. 6 B sends receiving area, the 2nd transmission receiving area and the oval figure that receives the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has the 1st.

Fig. 6 C sends the figure that receiving area, the 2nd sends the ultrasonic array oscillator of receiving area and oval-shaped out of use speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has the 1st.

Fig. 7 for expression elliptical openings portion relevant with present embodiment, that have dynamic speckle have the 1st send receiving area, the 2nd send receiving area and out of use speckle regions, at the figure of the ultrasonic array oscillator in the 4th zone of change of state reciprocally between out of use speckle regions and the 2nd transmission receiving area and between the state of out of use state and transmission reception.

Fig. 8 for expression relevant with present embodiment, have when sending elliptical openings portion with dynamic speckle sizes different when receiving have the 1st send receiving area, the 2nd send receiving area and out of use speckle regions, at the figure of the ultrasonic array oscillator in the 4th zone of change of state reciprocally between out of use speckle regions and the 2nd transmission receiving area and between the state of out of use state and transmission reception.

Fig. 9 A has the figure that sends reserved area, sends the receiving area and send the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion.

Fig. 9 B has the figure that sends reserved area, sends the receiving area and receive the ultrasonic array oscillator of reserved area for expression elliptical openings relevant with present embodiment, that have circular spot portion.

Fig. 9 C has the figure that sends reserved area, sends the ultrasonic array oscillator of receiving area and out of use speckle regions for expression elliptical openings relevant with present embodiment, that have circular spot portion.

Figure 10 A has the figure that sends reserved area, sends the receiving area and send the ultrasonic array oscillator of special-purpose speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot.

Figure 10 B has the figure that sends reserved area, sends the receiving area and receive the ultrasonic array oscillator of reserved area for expression elliptical openings portion relevant with present embodiment, that have elliptical spot.

The figure that Figure 10 C sends reserved area, sends the ultrasonic array oscillator of receiving area and out of use speckle regions for expression elliptical openings portion relevant with present embodiment, that have elliptical spot has.

Figure 11 A sends reserved area for expression elliptical openings portion relevant with present embodiment, that have dynamic speckle has, send receiving area and out of use speckle regions, at the figure of the ultrasonic array oscillator in the 4th zone of change of state reciprocally between out of use speckle regions and the transmission receiving area and between out of use state and transmission accepting state.

Figure 11 B is relevant with present embodiment for expression, have when sending elliptical openings portion with the dynamic speckle that when receiving, varies in size have send reserved area, transmission receiving area and out of use speckle regions, between out of use speckle regions and the transmission receiving area and the figure of the ultrasonic array oscillator in the 4th zone that between out of use state and transmission accepting state, changes.

Figure 12 is the figure that the toe curve chart is represented with the ultrasonic array oscillator that cuts relevant with present embodiment, that will become maximum in the center weight of ring.

Figure 13 for relevant with present embodiment, will be on the outer rim of speckle weight become the figure that the toe curve chart is represented with the ultrasonic array oscillator that cuts of maximum.

Figure 14 is relevant with present embodiment for expression, can make the figure of the ultrasonic array oscillator that speckle rotates on any direction that deflection direction and elevation direction are combined.

Figure 15 is the figure of expression ultrasonic array oscillator relevant with present embodiment, that have the polygon peristome.

Figure 16 is expression figure relevant with present embodiment, that have the ultrasonic array oscillator of elliptical openings and polygon speckle.

Figure 17 is relevant with present embodiment for expression, basis is cut the flow chart of step that the toe profile multiply by the processing of weight to received signal.

Figure 18 is expression figure relevant with present embodiment, that have the diagnostic ultrasound equipment of device body, adapter, cable, handle and ultrasonic array oscillator.

Figure 19 A is the figure of expression typical structure relevant with present embodiment, device body.

Figure 19 B is the figure of expression typical structure relevant with present embodiment, device body.

(symbol description)

20 ultrasonic array oscillators, 21 receive vibrating elements, 22 send vibrating elements, 23 send the reception vibrating elements, 24 speckles, 25 send vibrating elements, 26 receive vibrating elements, 28 out of use elements, 29 send the reception vibrating elements, 32 speckles, 37 speckles, 39 from sending to the switching that receives, 40 cut toe curve chart (ring center), 41 cut toe curve chart (inner center), 42 speckles, 52 dynamic speckles, the 52A minimum dimension, 52B full-size, 55 zones that can switch, 60 ultrasonic array oscillators, 62 speckles, 81 ultrasonic array oscillators, 82 adapters, 83 cables, 85 device bodies, 87 handles, 89 diagnostic ultrasound equipments, 171 sending parts, 172 acceptance divisions, 173 send the reception control part, 1001 storage mediums, 1002 mass storage devices, 1003 memory section, 1004CPU, 1005 interface portion

The specific embodiment

The diagnostic ultrasound equipment that an embodiment of the invention relate to comprises ultrasound probe, sending part, acceptance division and sends the reception control part.Ultrasound probe have two-dimensional arrangements in comprising the 1st zone of open centre a plurality of the 1st oscillators and around above-mentioned the 1st zone the 2nd regional in a plurality of the 2nd oscillators of two-dimensional arrangements.Sending part is supplied with the driving signal to above-mentioned the 1st oscillator and the 2nd oscillator.Acceptance division produces received signal according to the echo-signal that is produced by above-mentioned the 1st oscillator and the 2nd oscillator.The execution of transmission reception control part is used for only above-mentioned the 2nd oscillator being supplied with the control of the above-mentioned sending part that drives signal and being used for only use at least one control by the control of the above-mentioned acceptance division of the echo-signal generation received signal of above-mentioned the 2nd oscillator generation.

Below, the ultrasonic array oscillator that relates to reference to description of drawings and present embodiment.Present embodiment has the ultrasonic array oscillator of two-dimentional type.The ultrasonic array oscillator has any one in the oscillator of piezoelectric vibrator, electrostatic capacitance amount type ultrasonic oscillator (Capacitive Micromachined Ultrasonic Transducer: below be called CMUTS), piezo-electric type micromachined ultrasonic oscillator (Piezoelectric Micromachined Ultrasonic Transducer: below be called PMUTS) and other suitable kind.The ultrasonic array oscillator has a plurality of vibrating elementss.

In the ultrasonic array oscillator that present embodiment relates to, have speckle regions (below be called speckle) about the opening of the bearing surface of a plurality of oscillator butt subjects of two-dimensional arrangements or ultrasound probe, this speckle regions has a plurality of vibrating elementss that become inactive state (can not use) during at least one side who carries out hyperacoustic transmission and reception.

One of advantage of this speckle regions is as follows.By speckle regions is set on opening, thereby the scope of received beam is narrowed down.Its result, the resolution of the transverse direction during low coverage is left the theatre improves, and the associated picture quality improves.And the sum of the vibrating elements in the quantity of the vibrating elements of the active state that is associated with the raising of resolution and the ultrasound probe is compared minimizing.Minimizing as the quantity of the vibrating elements of active state (can use) reduces consumption electric power.And, become the requirement condition step-down of the hardware that is provided with in the vibrating elements of inactive state.The requirement condition of so-called hardware is the desired condition of hardware that is provided with in each vibrating elements.For example, become the hardware that is provided with in the vibrating elements of active state, require to receive function associated with hyperacoustic transmission about hyperacoustic transmission reception.On the other hand, become the hardware that is provided with in the vibrating elements of inactive state about hyperacoustic transmission, do not require and hyperacoustic transmission function associated (below, be called the ultrasound wave sending function), and requirement and ultrasonic reception function associated (below, be called the ultrasound wave receiving function).Requiring the hardware of ultrasound wave sending function for example is the ultrasound wave transtation mission circuit.On the other hand, become the hardware that is provided with in the vibrating elements of inactive state, do not require the ultrasound wave sending function, and require the ultrasound wave receiving function about ultrasonic reception.Requiring the hardware of ultrasound wave receiving function for example is the ultrasound wave receiving circuit.

And, suppress relevant cost as the minimizing of the quantity of the vibrating elements of active state.For example, when hardware requirement ultrasound wave sending function or ultrasound wave receiving function, the circuit number of lift-launch in ultrasound probe is owing to existing the vibrating elements that ultrasound wave sending function or ultrasound wave receiving function only are set to tail off.Its result reduces the cost of ultrasound probe.And, when hyperacoustic transmission reception period can not use,, also can omit ultrasound wave transtation mission circuit and ultrasound wave receiving circuit for the vibrating elements of this inactive state at the vibrating elements of inactive state.

Ultrasonic array oscillator with vibrating elements of inactive state has and improves the closely probability of the picture quality of sound field.Closely the raising of the picture quality in the sound field is as the result of fresnel diffraction effect and produce.(annotate: fresnel diffraction is mentioned at the effect of sound field closely.And Fraunhofer diffraction is mentioned at the effect of remote sound field).

Closely the raising of the quality of signals in the sound field is similar to " Ah loudspeaker's dagger-axe hot spot " or " Poisson bright spot " effect that can see in optical characteristic.The word that is called Ah loudspeaker's dagger-axe hot spot is used for the principle of the diffraction of optics.The principle of the diffraction in the optics is replaced into the opening of the 1st Fresnel region at the opaque disk with size corresponding with the 1st Fresnel region the result of situation mentions.In this case, the amplitude of light becomes half (during Fresnel ring 2).But the irradiance of the central part of shadow is the identical irradiance of irradiance with territory, no shadow zone.And the irradiance of the central part of shadow is compared more slightly with the situation that does not have opaque disk and is assembled.

In the structure of present embodiment, relevant with the opaque disk that produces Ah loudspeaker's dagger-axe hot spot as the vibrating elements of the inactive state in the speckle regions.The vibrating elements that is in inactive state in the speckle regions produces the wave beam of the focus unanimity in the sound field closely.The wave beam of focus unanimity improves picture quality.By using the vibrating elements of the special use corresponding with opaque disk at the central part of the opening of ultrasonic array oscillator, hyperacoustic transmission is compared minimizing with the quantity of at least one necessary vibrating elements in receiving with the situation of the vibrating elements that does not have special use.The minimizing of the quantity of the vibrating elements that this is essential reduces the cost for consumption electric power and electronic circuit.

Above-mentioned speckle has a lot of different shapes.As an example, be the two-dimentional heart that utilizes from the outside during with probe, the shape of opening generally is a rectangle.The shape of whole probe is a rectangle.But the shape of speckle is a circle or oval.According to optical principle, typically realize by the opening of circle by hyperacoustic boundling that the effect of Ah loudspeaker's dagger-axe hot spot is obtained.Known oval-shaped " hole " (that is, speckle) that is positioned at opening central authorities with circular " hole " when comparing, do not change the characteristic of wave beam greatly.Oval-shaped " speckle " (from the point along the focus direction of wave beam) that is positioned at the central part of ultrasonic array oscillator seems when departing from wave beam more as circle.Therefore, in above-mentioned condition, oval " speckle " compares the closely sound field beam pattern that generation has been assembled more with circle " speckle ".

Elliptical spot works in following situation.By turning to the direction that is offset (below be called steering direction) to observe ultrasonic beam when observing, the elliptical spot that has flattened according to the observation cosine of an angle moves closer to circular opening from the ultrasound probe front.When ultrasonic beam is offset by turning to from the ultrasound probe front, prolongation by opening that does not send or the opening that does not receive (speckle) makes circular speckle be extended to ellipse, thereby elliptical spot can be so that become circular mode from the shape of the observed speckle of scan-line direction and compensate.When being formed in of the speckle of compensation carried out following turning to and produce.For example, when carrying out the turning to of the ultrasonic beam of hyperacoustic transmission in receiving and receiving, with change with the mode that sends and receive relevant direction of visual lines from ultrasonic beam when the ultrasonic beam execution turns to, the situation of switched scan line etc.At this moment, when the center by opening and perpendicular to the direction of this opening and the angle between the steering direction (below be called steering angle) during near 0 °, the shape of compensatory speckle is near circular.In addition, become than 0 ° big or than 0 ° hour, the shape of compensatory speckle became ellipse when steering angle.And along with steering angle is spent near 45 degree or-45, it is big that oval flat ratio becomes.

Following table 1 shows the function corresponding with the 1st to the 3rd zone difference and the correspondence table of a plurality of embodiments.The 1st zone is for comprising the zone of open centre.The 2nd zone is for surrounding the zone in the 1st zone.The 3rd zone is for surrounding the zone in the 2nd zone.

(table 1) ★ ★

(the 1st embodiment)

(circular spot)

Figure 1A has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array ticker 20 has the special-purpose transmission vibrating elements 25 of transmission, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elementss 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.25 of transmission vibrating elementss in the speckle 24 send ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function switch mutually by the transmission reception control part that the wave beam in the device body described later forms handling part.

(elliptical spot)

Fig. 2 A has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose a plurality of transmission vibrating elementss 25 of transmission, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elementss 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Receiving vibrating elements 21 receives only from the subject ultrasonic waves transmitted.25 of transmission vibrating elementss in the speckle 32 send ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 2nd embodiment)

(circular spot)

Figure 1B has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array oscillator 20 has the special-purpose a plurality of reception vibrating elementss 26 of reception, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elementss 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.Reception vibrating elements 26 in the speckle 24 receives only from the ultrasound wave of subject reflection.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(elliptical spot)

Fig. 2 B has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose a plurality of reception vibrating elementss 26 of reception, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elementss 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.26 of reception vibrating elementss in the speckle 32 send ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 3rd embodiment)

(circular spot)

Fig. 1 C has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elements 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.Out of use element 28 in the speckle 24 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(elliptical spot)

Fig. 2 C has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elements 23, have the special use of receiving in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.Out of use element 28 in the speckle 32 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(dynamic speckle)

Below, describe at dynamic speckle.So-called dynamic speckle is according to hyperacoustic transmission and ultrasonic reception, makes the size of the speckle corresponding with the 1st zone or the speckle that shape dynamically changes by sending the reception control part.Simultaneously, also can make the size of speckle or shape receive hyperacoustic during continuously, dynamically change.

Fig. 3 A has the figure of the ultrasonic array oscillator 20 of dynamic speckle 52 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of reception vibrating elementss 21 that a plurality of transmissions receive vibrating elements 23, have the special use of receiving in the 3rd zone in the 2nd zone in the dynamic speckle 52 as the 1st zone.Receiving vibrating elements 21 receives only from the ultrasound wave of subject reflection.Out of use element 28 in the dynamic speckle 52 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

Dynamic speckle 52 has full-size 52B and minimum dimension 52A.Full-size 52B shown in Fig. 3 A or minimum dimension 52A are exemplary dimensions.The full-size 52B of dynamic speckle 52 or minimum dimension 52A respectively can be either large or small.

In the zone between full-size 52B and minimum dimension 52A, configuration and the corresponding zone that can switch 55, the 4th zone.A plurality of elements of arranging in the zone 55 that can switch (below, be called the element that can switch) have with out of use element 28 function associated with sending and receive vibrating elements 23 function associated.Receiving control part for the switching of the function of the element that can switch by transmission described later carries out.Dynamic speckle 52 can be by using the vibrating elements that can switch, and enlarges or narrow down to full-size 52B or minimum dimension 52A.Like this, the size of dynamic speckle 52 (scope in the 1st zone) can be either large or small.And the shape of dynamic speckle 52 can for example, change to ellipse from circle according to the feature that ultrasound wave is converged in focus and the degree of depth of image.In addition, the control of the switching relevant with the vibrating elements that can switch 55 also can be handled by other circuit in device body or the ultrasound probe.

Be made as about a plurality of elements that can to use and be made as and can not use be according to making ultrasound wave in the direction of assembling on the focus and the distance from the open centre to the focus (below, be called focal length) and decision.Perhaps, be made as about the vibrating elements that can switch that can to use and be made as and can not use be that wave beam by device body described later forms handling part, determine according to above-mentioned azimuth direction and above-mentioned focal length.Like this, hand-off process is to have considered to carry out by the focus that produces with the execution of ultrasonic array oscillator function associated and the shape of speckle 52.For example, the shape of speckle 52 and size according to circumstances determine by distinctive other parameter in the degree of depth, transmission focus and the speckle of considering image.And, the long distance of leaving the theatre from low coverage leave the theatre the focus of dynamically aiming at wave beam during, the principle relevant with switching processing is updated gradually.Like this, the size of dynamic speckle 52 and shape are correctly controlled.Its result during the low coverage during two-dimensional scan is left the theatre, can obtain more accurate and correct image.

(the 4th embodiment)

Fig. 3 B is the figure of the expression ultrasonic array oscillator 20 relevant with the 4th embodiment.Ultrasonic array oscillator 20 in hyperacoustic transmission with receive in have different sizes dynamic speckle.Ultrasonic array oscillator 20 shown in Fig. 3 B has with the ultrasonic array oscillator of Fig. 3 A similarly constructs.Shown in Fig. 3 B (1), when ultrasonic array oscillator 20 sends ultrasound wave, receive vibrating elements 21 and be inactive state.At this moment, send reception vibrating elements 23 and carry out the ultrasound wave sending functions.And the function of a plurality of elements that can switch in the zone 55 that can switch receives control part by transmission described later and is set to the ultrasound wave sending function.Vibrating elements among the dynamic speckle 52B is out of use element 28.Dynamic speckle 52B has in hyperacoustic transmission and has the 1st size of the same size of the speckle of out of use element 28.

Fig. 3 B (2) shows and receives hyperacoustic ultrasonic array oscillator 20.At this moment, receiving vibrating elements 21 is active state.Send and receive vibrating elements 23 execution ultrasound wave receiving functions.Vibrating elements in the zone 55 that can switch receives control part by transmission described later and is set to and can not uses.Vibrating elements in the speckle is out of use element 28.Like this, dynamic speckle 52A has the 2nd size that speckle 28 and the zone 55 that can switch are combined in reception.Above-mentioned example is also to work in special-purpose situation of the special-purpose situation of transmission, reception and the situation that is used in the transmission reception in speckle regions.

Fig. 3 C is the curve chart of expression across the size of the dynamic speckle of the process of time.In Fig. 3 C, the size of the speckle during the size of the speckle during ultrasound wave sends receives than ultrasound wave is also big.Shown in Fig. 3 C, the size of dynamic speckle 52 changes from sending to receiving the moment 39 of switching at the ultrasonic array oscillator.The size that example shown in Fig. 3 C shows the dynamic speckle in the transmission is also littler than the size of the dynamic speckle in receiving.And the size of the dynamic speckle in the transmission also can be also bigger than the size of the dynamic speckle in receiving.And, the size of the dynamic speckle in the transmission can also with the equal and opposite in direction of dynamic speckle in receiving.

(the 5th embodiment)

Ultrasonic array oscillator (dynamic speckle 52, reception vibrating elements 21, transmission receive vibrating elements 23, out of use element 28) with the structure shown in Fig. 3 A for example, uses according to the curve chart shown in Fig. 4 A.Curve chart among Fig. 4 A (1) and curve chart (2) show the size along with the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission in these curve charts and the reception.The size of the dynamic speckle 52 among Fig. 4 A changes in the reception of ultrasonic beam.As shown in Fig. 4 A, the size of dynamic speckle 52 is opportunity from hyperacoustic transmission to the switching 39 of ultrasonic reception with the ultrasonic array oscillator, receives control part by transmission described later and changes.The curve chart of Fig. 4 A (1) shows the increase along with the time that receives ultrasonic beam, and the size of dynamic speckle 52 increases.The curve chart of Fig. 4 A (2) shows the increase along with the time that receives ultrasonic beam, and the size of dynamic speckle 52 reduces.And the size of dynamic speckle 52 also can repeatedly repeat to increase and reduce or reduce and increase in the reception of ultrasonic beam.

(the 6th embodiment)

Ultrasonic array oscillator (dynamic speckle 52, reception vibrating elements 21, transmission receive vibrating elements 23, out of use element 28) with the structure shown in Fig. 3 A uses in the example shown in Fig. 4 B.Fig. 4 B is the curve chart of expression along with the size of the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission and the reception.And in Fig. 4 B, the size of the dynamic speckle 52 in the reception receives control part by transmission described later and changes in the reception of ultrasonic beam.The size of the dynamic speckle 52 among Fig. 4 B also can change when each switching ultrasonic beam (at every scanning line).And shown in Fig. 4 B, the size of dynamic speckle 52 also can change when sending to the switching 39 that receives at each of the 1st, the 2nd ultrasonic beam.Fig. 4 B shows two ultrasonic beams.And the example shown in Fig. 4 B can be adapted to a plurality of ultrasonic beams.And shown in Fig. 4 B, the size of dynamic speckle 52 increases on during reception the 1st ultrasonic beam.The size of dynamic speckle 52 can also increase in the reception of the 1st ultrasonic beam, the 2nd ultrasonic beam, other ultrasonic beam, minimizing or constant.The size of dynamic speckle 52 can also with each relevant receptions of a plurality of ultrasonic beams in, carrying out repeatedly increases and reduces or reduce and increase.Send to receive the 1st ultrasonic beam during dynamic speckle 52 size can also with send receive the 2nd ultrasonic beam during the size of dynamic speckle 52 different respectively.

(the 7th embodiment)

(circular spot)

Fig. 5 A has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array ticker 20 has the special-purpose transmission vibrating elements 25 of transmission, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 24 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.25 of the transmission vibrating elementss of the transmission special use in the speckle 24 send ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by the transmission in the device body described later and switch mutually.

(elliptical spot)

Fig. 6 A has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose transmission vibrating elements 25 of transmission, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 32 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function and the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.25 of the transmission vibrating elementss of the transmission special use in the speckle 32 send ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 8th embodiment)

(circular spot)

Fig. 5 B has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array ticker 20 has the special-purpose reception vibrating elements 26 of reception, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 24 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.The reception vibrating elements 26 of the reception special use in the speckle 24 receives only ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by the transmission in the device body described later and switch mutually.

(elliptical spot)

Fig. 6 B has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose reception vibrating elements 26 of reception, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 32 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.The reception vibrating elements 26 of the reception special use in the speckle 32 receives only ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 9th embodiment)

(circular spot)

Fig. 5 C has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array ticker 20 has out of use element 28, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 24 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.Out of use element 28 in the speckle 24 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(elliptical spot)

Fig. 6 C has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has out of use element 28, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the speckle 32 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception.Out of use element 28 in the speckle 32 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 10th embodiment)

Fig. 7 has the figure of the ultrasonic array oscillator 20 of dynamic speckle 52 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of transmissions reception vibrating elementss 23 in the 2nd zone, have a plurality of transmissions reception vibrating elementss 29 in the 3rd zone in the dynamic speckle 52 as the 1st zone.Send and receive vibrating elements 29 transmission reception ultrasound wave.Send reception vibrating elements 29 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 29 switches according to hyperacoustic transmission reception by sending the reception control part.Out of use element 28 in the dynamic speckle 52 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

Fig. 8 be illustrated in hyperacoustic transmission with receive in have the figure of ultrasonic array oscillator 20 of the dynamic speckle of different sizes.Ultrasonic array oscillator 20 shown in Figure 8 has with the ultrasonic array oscillator of Fig. 7 similarly constructs.Shown in Fig. 8 (1), when ultrasonic array oscillator 20 sends ultrasound wave, receive control part by transmission described later, send the function that receives vibrating elements 29 and be set to the ultrasound wave sending function, send the function that receives vibrating elements 23 and also be set to the ultrasound wave sending function.And the function of a plurality of elements that can switch in the zone 55 that can switch receives control part by transmission described later and is set to the ultrasound wave sending function.Vibrating elements among the dynamic speckle 52B is out of use element 28.Dynamic speckle 52B has and has the 1st size of the same size of the speckle of out of use element 28 in hyperacoustic transmission.

Fig. 8 (2) shows the ultrasonic array oscillator 20 when receiving ultrasound wave.At this moment, send the function that receives vibrating elements 29 and be set to the ultrasound wave receiving function.Send the function that receives vibrating elements 23 and also be set to the ultrasound wave receiving function.Vibrating elements in the zone 55 that can switch is set to and can not uses.Vibrating elements in the speckle is out of use element 28.Like this, dynamic speckle 52A has the 2nd size that speckle 28 and the zone 55 that can switch are combined in reception.Above-mentioned example is also can work in special-purpose situation of the special-purpose situation of transmission, reception and the situation that is used in the transmission reception in speckle regions.Shown in Fig. 3 C, dynamic speckle 52 has different size in sending reception.

(the 11st embodiment)

Ultrasonic array oscillator (dynamic speckle 52, transmission receive vibrating elements 29, send reception vibrating elements 23, out of use element 28) with structure shown in Figure 7 for example, uses according to the curve chart shown in Fig. 4 A.Curve chart among Fig. 4 A (1) and curve chart (2) show the size across the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission in these curve charts and the reception.In Fig. 4 A, the size of the dynamic speckle 52 in the reception receives control part by transmission described later and dynamically changes in the reception of ultrasonic beam.The size of dynamic speckle 52 shown in Figure 7 in transmission be different sizes in receiving.And the size of dynamic speckle 52A also can change in reception.

(the 12nd embodiment)

Ultrasonic array oscillator (dynamic speckle 52, transmission receive vibrating elements 29, send reception vibrating elements 23, out of use element 28) with structure shown in Figure 7 uses in the example shown in Fig. 4 B.Fig. 4 B is the curve chart of expression across the size of the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission and the reception.And in Fig. 4 B, the size of the dynamic speckle 52 in the reception receives control part by transmission described later and changes in the reception of ultrasonic beam.The size of the dynamic speckle 52 among Fig. 4 B also can change when each switching ultrasonic beam (at every scanning line).The size of dynamic speckle 52 like this, shown in Figure 7 has different sizes in transmission with in receiving.The size of dynamic speckle 52 also can change in reception.And the size of dynamic speckle 52 can also change when each switching ultrasonic beam (at every scanning line).

(the 13rd embodiment)

(circular spot)

Fig. 9 A has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array ticker 20 has the special-purpose transmission vibrating elements 25 of transmission, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elementss 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Transmission vibrating elements 25 in the speckle 24 also only sends ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function switch mutually by the transmission reception control part that the wave beam in the device body described later forms handling part.

(elliptical spot)

Figure 10 A has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose a plurality of transmission vibrating elementss 25 of transmission, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elementss 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Transmission vibrating elements 25 in the speckle 24 also only sends ultrasound wave.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 14th embodiment)

(circular spot)

Fig. 9 B has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array oscillator 20 has the special-purpose reception vibrating elements 26 of reception, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elementss 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Reception vibrating elements 26 in the speckle 24 receives only from the ultrasound wave of subject reflection.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(elliptical spot)

Figure 10 B has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has the special-purpose a plurality of reception vibrating elementss 26 of transmission, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elementss 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Reception vibrating elements 26 in the speckle 24 receives only from the ultrasound wave of subject reflection.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 15th embodiment)

(circular spot)

Fig. 9 C has the figure of the ultrasonic array oscillator 20 of circular spot 24 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elements 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 24 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Out of use element 28 in the speckle 24 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(elliptical spot)

Figure 10 C has the figure of the ultrasonic array oscillator 20 of elliptical spot 32 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28, has a plurality of transmission vibrating elementss 22 that a plurality of transmissions receive vibrating elements 23, have the special use of sending in the 3rd zone in the 2nd zone in the speckle 32 as the 1st zone.Send 22 of vibrating elementss and send ultrasound wave.Out of use element 28 in the speckle 32 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Ultrasound wave sending function and ultrasound wave receiving function receive control part by transmission described later and switch mutually.

(the 16th embodiment)

Figure 11 A has the figure of the ultrasonic array oscillator 20 of dynamic speckle 52 for expression.Ultrasonic array oscillator 20 has a plurality of out of use elements 28 in the dynamic speckle 52 as the 1st zone, have in the 2nd zone that a plurality of transmissions receive vibrating elementss 23, a plurality of transmission vibrating elementss 22 in the 3rd zone.Send 22 of vibrating elementss and send ultrasound wave.Out of use element 28 in the dynamic speckle 52 is to send or to receive hyperacoustic element.Send and receive vibrating elements 23 transmission reception ultrasound wave.Send reception vibrating elements 23 and have ultrasound wave sending function and ultrasound wave receiving function.Sending the ultrasound wave sending function or the ultrasound wave receiving function that receive vibrating elements 23 switches according to hyperacoustic transmission reception by transmission reception control part described later.

Figure 11 B be show have in hyperacoustic transmission with receive in have the figure of ultrasonic array oscillator 20 of the dynamic speckle of different sizes.Ultrasonic array oscillator 20 shown in Figure 11 B has with the ultrasonic array oscillator of Figure 11 A similarly constructs.Shown in Figure 11 A (1), when ultrasonic array oscillator 20 sends ultrasound wave, send vibrating elements 22 and send ultrasound wave, the function that sends reception vibrating elements 23 receives control part by transmission described later and is set to the ultrasound wave sending function.And the function of a plurality of elements that can switch in the zone 55 that can switch receives control part by transmission described later and is set to the ultrasound wave sending function.Vibrating elements among the dynamic speckle 52B is out of use element 28.Dynamic speckle 52B has and has the 1st size of the same size of the speckle of out of use element 28 in hyperacoustic transmission.

Figure 11 B (2) shows the ultrasonic array oscillator 20 when receiving ultrasound wave.At this moment, send vibrating elements 22 and be inactive state.Send the function that receives vibrating elements 23 and be set to the ultrasound wave receiving function.Vibrating elements in the zone 55 that can switch receives control part by transmission described later and is set to and can not uses.Vibrating elements in the speckle is out of use element 28.Like this, dynamic speckle 52A has the 2nd size that speckle 28 and the zone 55 that can switch are combined in reception.Above-mentioned example is also can work in special-purpose situation of the special-purpose situation of transmission, reception and the situation that is used in the transmission reception in speckle regions.Shown in Fig. 3 C, dynamic speckle 52 is of different sizes in sending reception.

(the 17th embodiment)

Ultrasonic array oscillator (dynamic speckle 52, transmission vibrating elements 22, transmission receive vibrating elements 23, out of use element 28) with the structure shown in Figure 11 A uses according to for example curve chart shown in Fig. 4 A.Curve chart among Fig. 4 A (1) and curve chart (2) show the size across the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission in these curve charts and the reception.In Fig. 4 A, the size of the dynamic speckle 52 in the reception dynamically changes in the reception of ultrasonic beam.The size of the dynamic speckle 52 shown in Figure 11 A in transmission be different sizes in receiving.And the size of dynamic speckle 52A also can change in reception.

(the 18th embodiment)

Ultrasonic array oscillator (dynamic speckle 52, transmission vibrating elements 22, transmission receive vibrating elements 23, out of use element 28) with the structure shown in Figure 11 A uses in the example shown in Fig. 4 B.Fig. 4 B is the curve chart of expression along with the size of the dynamic speckle of the process of time.Varying in size of speckle in the size of the speckle in the transmission and the reception.And in Fig. 4 B, the size of the dynamic speckle 52 in the reception receives control part by transmission described later and changes in the reception of ultrasonic beam.And the size of the dynamic speckle 52 among Fig. 4 B also can change when each switching ultrasonic beam (at every scanning line).Like this, the size of the dynamic speckle shown in Figure 11 A 52 has different sizes in transmission with in receiving.The size of dynamic speckle 52 also can change in reception.And the size of dynamic speckle 52 can also change when each switching ultrasonic beam (every scanning line).

Figure 12 is the figure relevant with cutting toe with Figure 13.Cut toe generally for the center at the array oscillator produces maximum received signal, be applied to one-dimensional array oscillator and two-dimensional array oscillator.Cut toe in order in the element of the central part that leaves mouth farthest, to produce minimum signal, be applied to one-dimensional array oscillator and two-dimensional array oscillator.Wait by Hamming function, Hanning function, raised cosine and define by cutting weighting that toe produces.

The Fresnel Lenses principle of standard is expressed as follows.For example, by a plurality of Fresnel rings of crosscut each the SIN function weighting cut the toe profile the expectation focus on correctly gather energy.Particularly, in opening, make the toe (below, be called anxious toe in the ring) of cutting that multiply by by the weight maximum of a plurality of oscillators of the mid point of the radius vector that is positioned at opening (below be called the ring center) echo-signal that produces or the driving signal that is supplied to this oscillator be similar to above-mentioned optical principle except speckle.In the ring anxious toe as Figure 12 of an example of cutting the toe profile to cut the toe curve shown in Figure 40, improve and be utilized in order to improve into image focus.And anxious toe uses (for example, near field or middle distance field etc.) at a position in the image in the ring.Figure 13 make the driving signal that multiply by the echo-signal that produces by the oscillator of the outer edge that is positioned at speckle or be supplied to this oscillator the weight maximum cut toe (below, be called anxious toe in the inner).In the inner anxious toe therefrom distance field leave the theatre to long distance, use in order to obtain the most highly sensitive sensitivity.In long distance is left the theatre, interior smoothedization of end-grain cutting toe.According to Figure 13 cut toe curve Figure 41, be appreciated that the end that is centered close to speckle 24 of cutting toe.Like this, anxious toe works in a lot of embodiments in the ring.For except the Parameter Optimization the parameter in focus and change cut the toe profile when optimizing ultrasonography read from memory section described later.

And different types of toe of cutting also can use diagnostic ultrasound equipment by transmission reception control part described later.Especially, the transmission of certain kind is cut toe by the energy weighting that sends waveform is carried out.For example, send and to cut the amplitude variations of toe by each waveform on the vibrating elements that makes the ultrasonic array oscillator and realize.And for example, toe is cut in transmission also can realize the quantitative changeization of the energy that can utilize by utilizing the modulation of pulse amplitude in pulse.The raising that toe provides the performance of image conversion is cut in transmission.Reception is cut toe and is applicable to the weight for channel be multiply by from the echo-signal of this channel output.About analog systems, reception is cut toe and is realized by controlling with each relevant gain of a plurality of channels.Digital display circuit was carried out the analog digital conversion before cutting the toe processing.Reception is cut toe and by utilizing wave beam described later to form handling part digital signal times is realized with the weight of cutting toe.

In addition, also go for the subarray that a plurality of oscillator groupings in the ultrasonic array oscillator 20 form is constituted the situation of 1 channel based on the weighting of cutting toe.The received signal that is applicable to a plurality of vibrating elementss that will comprise (below, be called the subarray element) output based on the weighting of cutting toe from subarray adds up to the signal that obtains.When utilizing the subarray element, from the signal of each subarray element output implement to receive cut toe before, after directly or relatively postponing, adding up to.

Figure 14 is for having disposed an example of speckle 42 on the direction that deflection direction and elevation direction are combined.The example of above-mentioned ultrasonic array oscillator 20 shows the speckle 42 in certain configuration.And as shown in figure 14, the configuration of speckle can receive control part by transmission described later and be set at circle, oval, other shape in any direction.And speckle 42 and the central authorities that are configured in ultrasonic array oscillator 20 similarly also can be configured in off-centered place.And speckle 42 uses in the time of also can using the ultrasonic beam that is diverted the opening both sides at opening that sends and reception.And speckle 42 also can be configured to have best the ultrasonic beam that is diverted on the direction that deflection direction and elevation direction are combined.

And the dynamic change of the speckle 42 relevant with receiving opening also can produce according to the degree of depth (focal length) of focus.For example, speckle 42 dynamically is updated according to the degree of depth that receives.Use the same method, for example, the transmission that wave beam described later forms in the handling part receives control part along with the degree of depth that receives focus shoals, and dynamically follows the size of speckle 42 new for littler.At this moment, the size that receives opening becomes big, receives opening and has more channel.

In addition, present embodiment also can replace having the ultrasonic array oscillator of oval profile, is applicable to the ultrasonic array oscillator with polygonal profile.Polygonal ultrasonic array oscillator 60 shown in Figure 15 has the reception of transmission vibrating elements 21 and speckle 62.Polygonal ultrasonic array oscillator 60 also can be applicable to above-mentioned arbitrary embodiment.

In addition, the shape of the shape of speckle or dynamic speckle also can have polygonal shape.And these shapes also can be for example irregular polygons.Figure 16 has the figure of an example of the speckle of polygonal shape for expression.

Figure 17 is relevant with present embodiment for expression, the flow chart of the step of the processing by cutting the toe execution.Reception is from the ultrasound wave (step S1) of subject reflection.If there is subarray (step S2), then calculate from the echo-signal sum (step S3) of each subarray element output relevant with radio frequency channel.When not having subarray (step S2) or after the processing of step S3, according to anxious toe in anxious toe or the inner in the ring etc. cut the toe profile, decision is distinguished corresponding weight (step S4) with a plurality of channels in the ultrasonic array oscillator.Multiply by from the received signal (step S5) of each channel output at the weighting of each channel decision.In addition, above-mentioned treatment step also can use analogue signal or digital signal to carry out.And above-mentioned treatment step also can be carried out by analog circuit or the digital computer that carries on diagnostic ultrasound equipment.

(the 19th embodiment)

Figure 18 is the figure of the typical diagnostic ultrasound equipment 89 of expression.Diagnostic ultrasound equipment 89 has device body 85, adapter 82, cable 83, handle 87.In addition, diagnostic ultrasound equipment 89 also can be connected to several input/output units.Below, handle 87 and ultrasonic array oscillator 81 are collectively referred to as ultrasound probe.Cable 83 is connected with device body 85 via adapter 82.Cable 83 is connected with ultrasonic array oscillator 81 via handle 87.End at handle 87 is provided with ultrasonic array oscillator 81.Illustrated speckle in the 1st to the 18th the embodiment is set on the opening of ultrasonic array oscillator 81.The relevant necessary processing of the execution with the image conversion processing of this diagnostic ultrasound equipment 89 is completely or partially carried out by device body 85.And the relevant necessary processing of the execution with the image conversion processing of this diagnostic ultrasound equipment 89 also can partly be carried out in the handle 87 of ultrasound probe.The wave beam that is provided with in the handle 87 of the part of above-mentioned necessary processing by for example ultrasound probe forms handling part and carries out.And the part of above-mentioned necessary processing also can be carried out by the ultrasound wave transtation mission circuit and the ultrasound wave receiving circuit that are connected with channel in the ultrasonic array oscillator 81.For example, the transmission that the needed processing of out of use element in the speckle regions of dynamic speckle 52 is provided with in device body 85 or probe receives under the control of control part, carries out by sending part or acceptance division.

Figure 19 A and Figure 19 B are the structure chart of the structure of for example relevant with the present embodiment device body 85 of expression.Device body 85 shown in Figure 19 A and Figure 19 B is arranged in Figure 19 B the state in the device body 85 except wave beam forms handling part 1007, and is all identical.In the present embodiment shown in Figure 19 A, wave beam forms handling part 1007 and is not present in the device body.But wave beam forms handling part 1007 and is arranged in the handle 87 of ultrasound probe.

Wave beam forms handling part 1007 to have sending part 171, acceptance division 172 and sends reception control part 173.Sending part 171 offers the driving signal that the transmission lag relevant with sending directivity is provided to each oscillator each of a plurality of oscillators in each the 1st to the 3rd zone.Sending part 171 can also not offer a plurality of the 1st oscillators with the driving signal that produces according to the indication that receives control part 173 from transmission described later.When the driving signal is not supplied with the 1st oscillator in the 1st zone, the ultrasound wave that is sent out (below, be called the transmission ultrasound wave) the 1st zone is not sent to subject as sound opening.Sending part 171 also can receive the indication of control part 173 according to transmission described later, carries out to send at each the driving signal that is supplied to a plurality of the 2nd oscillators and cuts toe.Transmission cut toe for Figure 12 for example cut toe curve Figure 40 and Figure 13 cut the toe curve shown in Figure 41 cut toe.

172 pairs of echo-signals by each generation of a plurality of oscillators in the ultrasonic array oscillator 81 of acceptance division provide the receive delay relevant with receiving directivity.Acceptance division 172 provides the echo-signal of receive delay by additional calculation, produces received signal.Acceptance division 172 also can be according to the indication that receives control part 173 from transmission described later, will not be supplied to the back level by the echo-signal of each generation of a plurality of the 1st oscillators in the 1st zone and handle (for example receive delay, additional calculation etc.).At this moment, by the ultrasound wave of subject reflection (below, be called reflection supersonic wave) the 2nd, the 3rd zone or the 2nd zone are received as sound opening.Acceptance division 172 also can receive the control of control part 173 according to transmission described later, cuts toe to carrying out to receive from the signal of a plurality of the 2nd oscillator outputs or from the signal of a plurality of the 2nd, the 3rd oscillator outputs.Reception cut toe for Figure 12 for example cut toe curve Figure 40 and Figure 13 cut the toe curve shown in Figure 41 cut toe.According to above-mentioned transmission directivity and the comprehensive directivity (, determining so-called " ultrasonic scanning line ") that receives directivity decision ultrasound wave transmission reception according to this directivity.

Send and receive control part 173, determine the size and the shape in the 1st zone according to sending hyperacoustic focus (degree of depth) and steering angle.Send and receive the size and shape control sending part 71 of control part 173, do not drive signal so that a plurality of the 1st oscillators in the 1st zone are not supplied with according to the 1st zone of decision.Particularly, for example, transmission reception control part 173 cut-out sending parts are connected with a plurality of the 1st oscillators.In addition, send reception control part 173 and also can not control sending part 171 not supply with the mode that drives signals to a plurality of the 1st oscillators from sending part 171.Transmission reception control part 173 will send the indication of cutting toe for the execution of driving signal and output in the sending part 171.

Send and receive control part 173, determine the size and the shape in the 1st zone according to focal depth relevant and the hyperacoustic steering angle of transmission with ultrasonic reception.Send and receive size and the shape of control part 173, will not be supplied to the back level from the signal of a plurality of the 1st oscillator outputs in the 1st zone and handle (for example, postponing additional calculation processing etc.) according to the 1st zone of decision.Particularly, send to receive control part 173 and cut off being connected of acceptance divisions and a plurality of the 1st oscillators.And, send to receive control part 173 and also can from the echo-signal of each generation of a plurality of oscillators the ultrasonic array oscillator 81, remove echo-signal by each generation of a plurality of the 1st oscillators.Send to receive control part 173 also can will receive the indication of cutting toe and output in the acceptance division 172 for carrying out by the echo-signal of each generation of a plurality of the 2nd oscillators or by the echo-signal of each generation of a plurality of the 2nd, the 3rd oscillators.

Send reception control part 173 and switch ultrasound wave sending function and ultrasound wave receiving function mutually for sending the reception vibrating elements.Sending reception control part 173 also can will receive vibrating elements and be made as and can not use during transmission be hyperacoustic.Send to receive control part 173 also can receive hyperacoustic during (below, be called reception period) will send vibrating elements and be made as and can not use.Send to receive control part 173 at reception period, the function of the element that the element that can switch from the element that can switch of the outer rim that is positioned at minimum dimension 52A to the inboard of the outer rim that is positioned at full-size 52B can switch successively changes to the ultrasound wave receiving function from out of use function.By this change, the size of speckle dynamically changes to full-size 52B from minimum dimension 52A.

Device body 85 has bus B or other communication agency that conveys a message.Device body 85 has mass storage device 1002, memory section 1003, central arithmetic processor (Central Processing Unit: below be called CPU) 1004, interface portion 1005, drive portion 1006.CPU1004 is connected with bus B for process information.Memory section 1003 is connected with bus B in order to preserve order and the information carried out by CPU1004.The above-mentioned toe profile of cutting of memory section 1003 storages.And memory section 1003 also can be stored the shape in 1st zone corresponding with sending hyperacoustic steering angle and the size in the 1st corresponding zone with sending hyperacoustic focus (degree of depth).And memory section 1003 also can be stored a plurality of sizes in 1st zone corresponding with a plurality of focal depth difference in the ultrasonic reception.And memory section 1003 also can be stored the transmission lag time corresponding with focal depth.And memory section also can be stored the different a plurality of receive delay figures of focal depth.

Memory section 1003 is for example random access memory (Random Access Memory:RAM) or other dynamic storage device.So-called other dynamic storage device is for example dynamic ram (Dynamic Random Access Memory:DRAM), static RAM (SRAM) (Static Random Access Memory:SRAM) and the DRAM (Synchronous Dynamic Random Access Memory:SDRAM) synchronous with bus clock.And memory section 1003 also can be used for the order undertaken by CPU1004 carrying out, preserves average information or temporary transient variable.In addition, device body 85 also can have read only memory (Read Only Memory:ROM) or other static storage device in order to preserve static state indication and the information for CPU1004.So-called other static memory is for example programming ROM (Programmable ROM:PROM), erasable programmable ROM (Erasable Programmable ROM:EPROM), electric erasable PROM (Electrically Erasable PROM:EEPROM) etc.

Device body 85 also can have the Magnetic Disk Controler that is connected with bus B.Magnetic Disk Controler is in order to store indication and information, and control is as the storage device or the drive portion 1006 of mass storage device 1002.Drive portion 1006 for example is floppy disk (registered trade mark) driver, soft compact disk driver, read/write compact disk driver, compact disk player, the tape drive of reading special use and the optomagnetic driver that can take off etc.And above-mentioned storage device also can be connected with device body 85 via suitable driver interface.So-called driver interface is for example small computer system interface (Small Computer System Interface:SCSI), integrated drive electronic unit (Integrated Drive Electronics:IDE), enhancing IDM (Enhansed-IDE:E-IDE), direct memory access (DMA) (Direct Memory Access:DMA), super DMA (Ultra-DMA) etc.

In addition, device body 85 also can have the logical device that is used for specific purposes, the logical device that can set, CPLD (Complex Programmable Logic Devices:CPLDs), scale programmable logic device etc.The logical device that is used for specific purposes is for for example being used for the IC (Application Specific Integrated Circuits:ASICs) of special-purpose.The logical device that can set is for example simple programmable logical device (Simple Programmable Logic Devices:SPLDs).Scale programmable logic device is for example field programmable gate array (Field Programmable Gate Arrays:FPGAs).

In addition, device body 85 also can have the not shown display control unit that is connected with bus B.Display control unit is in order to show information to the operator, the display of control as Brown tube (Cathode raytube:CRT).Device body 85 has not shown input equipment.Input equipment will be outputed in the device body 85 by the information of operator's input.Input equipment is for example key board unit and positioner etc.Positioner is for for example mouse, trace ball or point to rod etc.Positioner for example outputs to the information of direction and the selection of instruction in the device body 85.Moving of cursor on the positioner control display.And, on device body 85, also can connect at least one the printer of catalog etc. in the data of data that the printshop produces and storage.

And device body 85 is carried out at least a portion of the relevant treatment step of present embodiment according to the response from CPU1004.CPU1004 carries out a series of order of storing in the storage device of memory section 1003.Mentioned order also can read in the memory section 1003 from mass storage device 1002 or other the readable storage medium 1001 as the storage medium that can pull down.The above-mentioned a series of order of storage also can be carried out by the device that can handle a plurality of programs simultaneously in the memory section 1003.In addition, as modified embodiment of the present embodiment, above-mentioned a series of order also can perhaps replace the command execution of software by using the connect up circuit structure of connection and order (program) interlock of software.Like this, present embodiment is not limited to the specific combination of hardware circuit and software.

As mentioned above, device body 85 is in order to keep the program corresponding command information relevant with present embodiment, has storage medium 1001 or memory section 1003 that at least one can be read by computer.Storage medium 1001 or memory section 1003 store data structures, form, record or other data of recording and narrating in this manual.The example of the storage medium 1001 that can read by computer is compact disk, hard disk, floppy disk (registered trade mark), tape, photomagneto disk, PROMs (EPROM, EEPROM, flash EPROM), DRAM, SRAM, the storage medium of SDRAM or other magnetizing mediums compact disk (for example, CD-ROM etc.), the regulation that can read by computer.

Be used for control device body 85 software (program), be used for the various devices of driving device body 85 software (program), be used to carry out present embodiment software (program), this 85 can be saved in the storage medium that can read by computer or the combination of above-mentioned storage medium with the software (program) of operator's dialogue to be used to make device.Above-mentioned software is device driver, operating system, developing instrument and application software etc., but is not limited thereto.And, at a part or the whole computer program that can comprise the processing that is used to carry out present embodiment by the machine-readable storage medium that goes out of aforementioned calculation.

The coding mechanism of the computer code element relevant (for example program) of storing in the storage medium for translating into machine language or can carrying out with present embodiment.The program that the coding mechanism that can translate into machine language or can carry out has script, the program that can translate into machine language, dynamic link library (Dynamic Linked Library:DLLs), JAVA (registered trade mark) classification and can carry out fully, but be not limited thereto.And the part of the processing relevant with present embodiment also can be for more excellent performance, reliability or cost, via storage medium or net distribution.

The word of putting down in writing in this description that is called " storage medium that can read by computer " with provide the relevant all storage mediums of indication to be associated for fill order to CPU1004.Non-volatile media and Volatile media can be not limited to by the storage medium that computer is read, many modes can be.For example, non-volatile media comprises CD, disk and the photomagneto disk as mass storage device 1002 or removable storage medium 1001.Volatile media comprises the dynamic memory as memory section 1003.

Send a series of order with can comprising to CPU1004 by the relevant variety of way of the storage medium that computer is read.For example, order is transferred in the disk of remote computer first.The input that is connected with bus B can receive data.The data that receive are configured on the bus B.Bus B transfers to memory section 1003 with data.CPU1004 reads and fill order from memory section 1003.The order that receives by memory section 1003 at random is kept in the mass storage device 1002 before carrying out the back by CPU1004 or carrying out.

Device body 85 has the interface portion 1005 that is connected with bus B.Interface portion 1005 provides two data method for communicating with network connections.For example, network is connected with LAN (Local Area Network:LAN) or other communication network as the Internet.For example, interface portion 1005 also can be mounted in the interface card on the LAN of packet switch.As other example, the modem of interface portion 1005 for providing ADSL (Asymmetrical Digital Subscriber Line:ADSL), Integrated Service Digital Network(ISDN) (Integrated Services Digital Network:ISDN) card or the data communication consistent to connect with the kind of communication wire.Interface portion 1005 also can be carried out as wireless link.Interface portion 1005 sends and receives electricity, electromagnetism or optical signal in above-mentioned all are installed.Above-mentioned signal is carried the numerical data stream of the various types of information of expression.

Network is supplied with other data equipment by more than one network with communication data.For example, network (for example, LAN) or by the device of service provider operation, provides connection to other computer by LAN.Provider provides communication service by communication network.In LAN and communication network, for example, make electricity consumption, electromagnetism or optical signal.Physical layer (for example, CAT5 cable, coaxial cable, the optical fibers etc.) conveying that above-mentioned signal flows via numerical data and is associated.And network provides the mobile device as personal digital assistant (Personal Digital Assistant:PDA) and portable computer or the connection of mobile phone.

And the several advantages in the present embodiment also can provide according to application program.First advantage is the electric power that reduces for two-dimensional ultrasonic array oscillator necessity.The reduction of electric power is because of the vibrating elements that can not use at least one side in hyperacoustic transmission and the reception in the speckle.The 2nd advantage be for the response of identical in the past ultrasonic beam figure, can be the parts number that lacks than in the past parts number.This is owing to used the out of use speckle of vibrating elements.The 3rd advantage is the cost that can reduce the money of ultrasonic array oscillator.The minimizing of cost be because: special-purpose by in the ultrasonic array oscillator, use sending, receive professional components such as special use, speckle special use, for the component minimizing of using in the circuit number of the ultrasound wave transtation mission circuit of channel and ultrasound wave receiving circuit and the circuit.The 4th advantage is the requirement condition that can reduce for the electrofocusing.This is owing to change the size of speckle according to focal position.The 5th advantage is to go up the ultrasonic beam that the more uniform low coverage of generation is left the theatre for the desired steering angle of ultrasonographyization (for example, 0 °～45 °) according to the shape of speckle.This is because change the shape of speckle according to steering angle.The 6th advantage is to obtain the focus characteristics better than this result to obtain bigger opening with identical in the past vibrating elements number.This is because the vibrating elements that is positioned on the speckle can not use.

Although understand several embodiments of the present invention, but these embodiments all propose as an example, are not to be used for limiting scope of the present invention.These new embodiments can be implemented with other variety of way, in the scope of the main design that does not break away from invention, can carry out various omissions, rewriting, change.These embodiments and distortion thereof are included in scope of invention and the main design, and are included in the invention and scope of equal value thereof of claims record.

Claims

1. a diagnostic ultrasound equipment is characterized in that, comprising:

Ultrasound probe, have two-dimensional arrangements in comprising the 1st zone of open centre a plurality of the 1st oscillators and around above-mentioned the 1st zone the 2nd regional in a plurality of the 2nd oscillators of two-dimensional arrangements;

Sending part is supplied with the driving signal to above-mentioned the 1st oscillator and the 2nd oscillator;

Acceptance division, the echo-signal according to being produced by above-mentioned the 1st oscillator and the 2nd oscillator produces received signal; And

Transmission reception control part, execution are used for only supplying with the control of the above-mentioned sending part that drives signal and being used for only use at least one control by the control of the above-mentioned acceptance division of the echo-signal generation received signal of above-mentioned the 2nd oscillator generation to above-mentioned the 2nd oscillator.

2. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part

Cut off being connected of above-mentioned the 1st oscillator and above-mentioned sending part,

Control above-mentioned acceptance division, make to produce received signal according to the echo-signal that produces by above-mentioned the 1st oscillator and the 2nd oscillator.

3. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part

Control above-mentioned sending part, make and supply with above-mentioned driving signal to above-mentioned the 1st oscillator and above-mentioned the 2nd oscillator,

Removal is by the echo-signal by above-mentioned the 1st oscillator generation in the echo-signal of above-mentioned the 1st oscillator and the generation of the 2nd oscillator.

4. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part

Cut off being connected of above-mentioned the 1st oscillator and above-mentioned acceptance division.

5. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part

Cut off being connected of above-mentioned the 2nd oscillator and above-mentioned acceptance division.

6. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part

Cut off being connected of above-mentioned the 1st oscillator and above-mentioned sending part, remove the echo-signal that produces by above-mentioned the 1st oscillator in the echo-signal that produces by above-mentioned the 1st oscillator and the 2nd oscillator.

7. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission reception control part is controlled at least one side in above-mentioned sending part and the above-mentioned acceptance division, so that the dimension modifying in above-mentioned the 1st zone is the size corresponding with focal length.

8. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission reception control part is controlled at least one side in above-mentioned sending part and the above-mentioned acceptance division, so that the size in above-mentioned the 1st zone dynamically changes to the size of regulation.

9. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission reception control part is controlled at least one side in above-mentioned sending part and the above-mentioned acceptance division, so that above-mentioned the 1st region deformation is and hyperacoustic sending direction corresponding shape.

10. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part and controls above-mentioned sending part, makes to change the size in above-mentioned the 1st zone by each hyperacoustic sending direction.

11. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned opening has oval or polygonal shape.

12. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned the 1st zone has a certain shape in ellipse, circle and the polygon.

13. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part and controls above-mentioned sending part, make to the driving signal times that is supplied to each above-mentioned the 2nd oscillator with above-mentioned opening on the corresponding regulation weight in position of each above-mentioned the 2nd oscillator.

14. diagnostic ultrasound equipment according to claim 1 is characterized in that:

Above-mentioned transmission receives control part and controls above-mentioned acceptance division, make to the echo-signal that produces by each above-mentioned the 2nd oscillator multiply by with above-mentioned opening on the corresponding regulation weight in position of each above-mentioned the 2nd oscillator.

15. a ultrasound probe is characterized in that, comprising:

A plurality of the 1st oscillators, two-dimensional arrangements in comprising the 1st zone of open centre;

A plurality of the 2nd oscillators, two-dimensional arrangements in the 2nd zone around above-mentioned the 1st zone;

Sending part is supplied with the driving signal to above-mentioned the 1st oscillator and above-mentioned the 2nd oscillator;

Acceptance division, the echo-signal according to being produced by above-mentioned the 1st oscillator and above-mentioned the 2nd oscillator produces received signal; And

Send to receive control part, carry out and only be used for only using at least one control by the control of the above-mentioned acceptance division of the echo-signal generation received signal of above-mentioned the 2nd oscillator generation to the control and being used for that above-mentioned the 2nd oscillator is supplied with the above-mentioned sending part of above-mentioned driving signal.