JP5301854B2 - Ultrasonic probe, ultrasonic diagnostic apparatus, gel application method and puncture needle puncture method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic probe which enables a person who diagnoses to view an oscillation range of an acoustic element in a dim environment to use. <P>SOLUTION: Light emitting bodies 1-4 are attached to the acoustic element 11 in a manner to project a light emitting path to a surface of a window 12 along with the oscillation of the acoustic element 11. When the acoustic element 11 oscillates in a diagnosing environment close to a dark room, the light-emitting bodies 1-4 also oscillate with the acoustic element 11, and the light output from the light-emitting bodies 1-4 penetrates through the window 12 and is produced on a window surface as a linear path in an oscillation angle range. Consequently, the oscillation range of the acoustic element is visually recognized. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

The present invention relates to an ultrasonic probe in which an acoustic element swings in order to construct a three-dimensional image with an ultrasonic diagnostic apparatus, and more particularly to an ultrasonic probe in which the swing range of the acoustic element can be changed.
The present invention also relates to an ultrasonic diagnostic apparatus using an ultrasonic probe that can change the swing range of an acoustic element, a gel application method, and a puncture needle puncture method.

  In general, in an ultrasonic probe in which an acoustic element is swung, a window in which the acoustic element is arranged is made of a translucent material (for example, PP (polypropylene) resin), and an environment in which an ultrasonic diagnostic apparatus is used. Since this is usually a dimly lit dark room, various proposals have been made to allow the diagnostician to visually recognize the operation of the acoustic elements in the translucent window. As a prior art, the following Patent Document 1 describes each direction in order to make it possible to visually recognize whether the oscillating acoustic element is oscillating in the positive direction or in the opposite direction. A method is described in which light-emitting elements are provided on the side (two in total), and one of the two light-emitting elements is selectively turned on according to the direction in which the acoustic element is currently swinging.

As another conventional technique, Patent Document 2 below describes a method of providing a light emitting element on the housing side of an ultrasonic probe for indicating whether or not the ultrasonic probe itself is in an energizing operation. Has been. As another prior art, in Patent Document 3 below, there is a method of providing a mark and a window on the acoustic element side and the window side, respectively, in order to make the position of the acoustic element from the oscillation start position visible. Have been described.
JP 2004-64380 A (Abstract) JP-A-1-277540 ("Purpose of invention" in the upper left and upper right columns on page 251 and claims) JP 2007-293 A (abstract)

  By the way, in an ultrasonic diagnostic apparatus to which an ultrasonic probe in which an acoustic element is oscillated is connected, there are cases in which a diagnostician wants to change the oscillating range of the acoustic element and obtain an image of a subject. In this case, if the swing range of the acoustic element is narrowed, the ultrasonic diagnostic apparatus performs image processing only within the narrowed swing range and does not need to perform image processing outside the swing range. Can quickly display an image in a range of interest. Thus, when a diagnostician changes the rocking | fluctuation range of an acoustic element, a diagnostician performs the operation instruction for it on the ultrasonic diagnostic apparatus side. However, when the diagnostician gives an operation instruction to change the swing range of the acoustic element on the ultrasonic diagnostic apparatus side, the acoustic element on the ultrasonic probe side is in accordance with the designated range for the diagnostician in a dark usage environment. There is a problem that it is not possible to visually recognize whether the rocking is performed.

  In addition, the acoustic element on the ultrasonic probe side is a multi-channel piezoelectric element from a start channel that starts two-dimensional scanning in the major axis direction to a final channel that ends two-dimensional scanning in order to two-dimensionally scan the tomographic plane. Are arranged in a linear or convex one-dimensional direction, but a diagnostician needs to have an ultrasonic probe so that the direction of the piezoelectric element is a predetermined direction even in a dark usage environment.

In view of the above problems, it is a first object of the present invention to provide an ultrasonic probe and an ultrasonic diagnostic apparatus that can visually recognize a rocking range of an acoustic element in a dimly used environment.
In addition, the present invention can achieve the first object described above, and from the start channel for starting the two-dimensional scanning in the major axis direction to the final channel for ending the two-dimensional scanning in order to perform two-dimensional scanning of the tomographic plane. A second object of the present invention is to provide an ultrasonic probe that can have an ultrasonic probe so that the direction of the piezoelectric element is a predetermined direction with respect to the ultrasonic probe having a plurality of channels of piezoelectric elements. Objective.
A third object of the present invention is to provide an ultrasonic diagnostic apparatus that can achieve the above first object and can notify a defect of an ultrasonic probe.
A fourth object of the present invention is to provide a gel application method that can achieve the above first object and that can accurately apply a gel to a diagnosis range of a subject under a dim use environment. Objective.
The present invention also provides a puncture method for a puncture needle that can achieve the first object described above and can accurately puncture the puncture needle at the puncture position of the subject under a dim use environment. The purpose of 5.

In order to achieve the first object, the ultrasonic probe of the present invention includes an acoustic element that swings in a window to obtain a three-dimensional image;
A light emitter attached to the acoustic element so as to project a light emission locus on the surface of the window together with the swinging of the acoustic element;
It was set as the structure which has.
With the above configuration, the rocking range of the acoustic element can be visually recognized in a dimly used environment.

The acoustic element has a plurality of channels of piezoelectric elements from a start channel for starting two-dimensional scanning in the major axis direction to a final channel for ending two-dimensional scanning arranged in a convex one-dimensional direction,
The light emitter is configured to be disposed only at both ends in the long axis direction of the acoustic element and at the center in the short axis direction.
With the above configuration, the rocking range of the acoustic element can be visually recognized even when the rocking range at the center in the long axis direction is larger than the end in the long axis direction of the acoustic element.

In order to achieve the second object, the light emitter is disposed at the long-axis direction end of the acoustic element and in the short-axis direction center,
Furthermore, a configuration is provided in which a mark for shielding light from the light emitter is provided at the center position of the swing range of the acoustic element and at the position of the window corresponding to one end in the long axis direction of the acoustic element. did.
With the above configuration, it is possible to visually recognize the rocking range of the acoustic element in a dimly used environment, and to have an ultrasonic probe so that the direction of the piezoelectric element is a predetermined direction.

Further, in order to achieve the first object, the ultrasonic diagnostic apparatus of the present invention has a multi-channel piezoelectric element from a start channel that starts two-dimensional scanning in the major axis direction to a final channel that ends two-dimensional scanning. Are arranged in a convex one-dimensional direction and swing in a window to obtain a three-dimensional image, and are arranged at both ends in the short axis direction at the center in the long axis direction of the acoustic element. An ultrasonic diagnostic apparatus to which an ultrasonic probe having two light emitters attached to the acoustic element so as to project a light emission locus on the surface of the window together with the swing of the acoustic element is connected,
Means for controlling the light emission timing of the two light emitters so that the range of the light emission locus of the two light emitters is the same as the swing range of the acoustic element;
It was set as the structure which has.
With the above configuration, the swing range of the acoustic element can be accurately visually recognized in a dimly used environment.

In order to achieve the third object, the ultrasonic diagnostic apparatus of the present invention includes an acoustic element that swings in a window to obtain a three-dimensional image, and a surface of the window together with the swing of the acoustic element. An ultrasonic diagnostic apparatus to which an ultrasonic probe having a light emitter attached to the acoustic element so as to project a light emission locus is connected,
Means for blinking the light emitter when a defect of the ultrasonic probe is detected;
It was set as the structure which has.
With the above-described configuration, it is possible to visually recognize the swing range of the acoustic element in a dimly used environment, and to report a defect in the ultrasonic probe.

In order to achieve the fourth object, the present invention provides
Multiple channels of piezoelectric elements from the start channel starting the two-dimensional scan in the long axis direction to the final channel ending the two-dimensional scan are arranged in a convex one-dimensional direction and within the window to obtain a three-dimensional image An acoustic element that swings, a first two light emitters disposed at both ends in the minor axis direction in the major axis direction of the acoustic element, and a minor axis direction at both major axis directions of the acoustic element A second light emitter disposed in the center, and the first and second light emitters project the light emission locus onto the surface of the window as the acoustic element swings. A method of applying a gel using an attached ultrasonic probe,
A gel is applied to the surface of the subject surrounded by the light emission trajectories of the first and second light emitters.
With the above configuration, it is possible to visually recognize the swing range of the acoustic element in a dimly used environment and to accurately apply the gel to the diagnosis range of the subject.

In order to achieve the fifth object, the present invention provides
Multiple channels of piezoelectric elements from the start channel starting the two-dimensional scan in the long axis direction to the final channel ending the two-dimensional scan are arranged in a convex one-dimensional direction and within the window to obtain a three-dimensional image An acoustic element that swings, and is disposed at both ends in the minor axis direction at the center in the major axis direction of the acoustic element so as to project a light emission locus on the surface of the window along with the oscillation of the acoustic element. A puncture method of a puncture needle using an ultrasonic probe having two attached light emitters,
The puncture needle is punctured using two projection lights projected from the two light emitters on the surface of the subject as guidelines for the puncture position of the puncture needle.
With the above configuration, the swing range of the acoustic element can be visually recognized in a dimly used environment, and the puncture needle can be accurately punctured at the puncture position of the subject.

According to the present invention, the rocking range of the acoustic element can be visually recognized in a dimly used environment.
Further, according to the present invention, it is possible to have an ultrasonic probe so that the direction of the piezoelectric element is a predetermined direction.
Further, according to the present invention, it is possible to notify the defect of the ultrasonic probe.
Further, according to the present invention, the gel can be accurately applied to the diagnostic position of the subject.
According to the present invention, the puncture needle can be accurately punctured at the puncture position of the subject.

Embodiments of the present invention will be described below with reference to the drawings.
<First Embodiment>
1 is a perspective view showing a first embodiment of an ultrasonic probe according to the present invention, FIG. 2 is a front sectional view showing the ultrasonic probe of FIG. 1, and FIG. It is side surface sectional drawing which shows an ultrasonic probe.

  In the ultrasonic probe (probe) 10 shown in FIGS. 1, 2, and 3, the acoustic element 11 is from a start channel that starts long-axis direction electronic scanning to an end channel that ends long-axis direction electronic scanning. The plurality of piezoelectric elements are arranged in a convex one-dimensional direction. Here, the ultrasonic probe using such a convex acoustic element 11 is used for diagnosing a relatively deep site such as the abdomen. The acoustic element 11 is also supported in a semi-transparent window 12 so as to be able to swing in a direction orthogonal to the arrangement direction of the piezoelectric elements with the swing shaft 13 as an axis. The swing shaft 13 is interposed via a drive transmission component 14. Connected to the motor 15. For this reason, this type of scanning method for the three-dimensional ultrasonic probe 10 is called a mechanical scanning method. The window 12 is supported by the frame 16, and the window 12 and the frame 16 are filled with a propagation liquid 17 for propagating ultrasonic waves.

  The acoustic element 11 is provided with the light emitter 1 on the side surface (one end in the long axis direction and the center in the short axis direction) in the vicinity of the piezoelectric element of the start channel of the acoustic element 11, and near the piezoelectric element of the end channel. The light emitter 2 is provided on the side surface (the other end in the long axis direction and the center in the short axis direction), and the light emitters 3 and 4 are provided on the side surfaces in the center in the long axis direction and on both ends in the short axis direction (= swing direction). Is provided. Here, the light emitters 1 to 4 are arranged on the side surface of the acoustic element 11 so as not to interfere with the ultrasonic wave output from each piezoelectric element and the ultrasonic wave reflected and returned from the subject.

  Therefore, when the acoustic element 11 swings in a diagnostic environment close to a dark room, the light emitters 1 to 4 also swing together with the acoustic element 11, and the light output from the light emitters 1 to 4 passes through the window 12. In the swing angle range, for example, when the probe state in FIG. 1 is viewed from directly above, a linear light emission locus is displayed on the window surface and can be visually observed. The angle information of the acoustic element 11 can be directly recognized by the light emission locus of the light emitting units 1 to 4. Therefore, it is possible to intuitively recognize whether or not the set swing angle range matches the intended one.

<Second Embodiment>
As shown in FIG. 4, the acoustic element 11 according to the second embodiment is configured by arranging a plurality of piezoelectric elements from a start channel to an end channel in a linear one-dimensional direction. A linear ultrasonic probe using such a linear acoustic element 11 is used for diagnosing a relatively shallow region such as a mammary gland, a carotid artery, and a lower limb.

  Here, in the acoustic element 11 in the first and second embodiments, the light emitters 3 and 4 cannot be arranged on the ultrasonic signal output surface of the acoustic element 11 as illustrated in FIG. As shown in FIG. 1, the acoustic element 11 must be disposed at the center in the long axis direction and on both side surfaces in the short axis direction. However, when the light emitters 3 and 4 are arranged in this way, the range of the light emission trajectory of the light emitters 3 and 4 is the center in the long axis direction of the acoustic element 11 from the actual swinging range of the acoustic element 11 as shown in FIG. Since it becomes larger by the width of, some users may feel unnaturalness. Further, when only one of the light emitters 3 and 4 is provided as shown in FIG. 7, the range of the light emission locus of the light emitters 3 or 4 becomes equal to the actual swinging range of the acoustic element 11, but the acoustic element 11 Since the position of each range is shifted by a half of the width of the center in the long axis direction, even in this case, the user may feel unnaturalness.

  Therefore, as a second embodiment, as shown in FIG. 8, the light emitters 3 and 4 disposed in the center in the long axis direction of the acoustic element 11 are omitted, and the light emitters 1 provided at both ends of the acoustic element 11 in the long axis direction, By using only 2, the range of the light emission trajectory of the light emitters 1 and 2 can be matched with the actual swing range of the acoustic element 11 and the position of each range.

<Third Embodiment>
As shown in FIG. 9, in the first embodiment, the light emitters 3 and 4 are arranged on the side surfaces on both sides in the short axis direction at the center in the long axis direction of the convex acoustic element 11. Since the light emitters 1 and 2 are arranged at the end in the long axis direction and in the center in the short axis direction, the range of the light emission locus of the light emitters 3 and 4 is larger than that of the light emitters 1 and 2, and Since the difference becomes larger as the ultrasonic probe has a larger curvature of the element 11, the actual swing range of the acoustic element 11 may be difficult for the user to understand.

  Therefore, as a third embodiment, as shown in FIGS. 10 and 11, the light emitters 3 and 4 disposed on both side surfaces in the center of the long axis direction of the convex acoustic element 11 are always lit. Instead, by controlling so that only the actual swing range of the acoustic element 11 is lit, the user can easily recognize the actual swing range of the acoustic element 11.

  FIG. 10 is an explanatory diagram showing the third embodiment. FIG. 11 shows the light emission timings of the light emitters 3 and 4. The position where the optical axis of the light emitter 3 and the rocking end A of the acoustic element 11 intersect is set to [POSITION A], the position where the optical axis of the light emitter 4 and the rocking end B of the acoustic element 11 intersect is [POSITION B], and the light emission ranges of the light emitters 3 and 4 are managed by encoder signals. That is, when the acoustic element 11 rotates from the state of the swing end A to POSITION_A, the light emitting body 3 starts to be turned on. Next, the acoustic element 11 is folded back at the position of the swing end B, and the light emitter 3 is turned off when passing through POSITION_A again. Further, when the acoustic element 11 rotates from the state of the swing end B to POSITION_B, lighting of the light emitter 4 is started. Next, the acoustic element 11 is folded back at the position of the swing end A, and the light emitter 4 is turned off when passing through POSITION_B again. Thereby, since the range and position of the light emission locus of the light emitters 3 and 4 coincide with the actual swing range and position of the acoustic element 11, the correct swing range and position can be displayed.

<Configuration of light emission timing control>
FIG. 12 shows the configuration of the mechanical scanning ultrasonic probe 10 and the ultrasonic diagnostic apparatus main body for realizing the light emission timing control shown in FIGS. 10 and 11. The ultrasonic probe 10 includes an acoustic element portion 11a including an acoustic element 11 and the like, a swing mechanism portion 15a including a motor 15 with a rotary encoder (not shown), a light emitting portion 1a including light emitters 1 to 4 and the like. Etc. The ultrasonic diagnostic apparatus main body generally includes a driver 20 and a controller 30. The driver 20 has drive circuits 21 and 22 for driving the oscillation mechanism 15 a and the light emitting unit 1 a on the ultrasonic probe 10 side, and the controller 30 has a CPU 31 and a memory 36. In the controller 30, the currently set swing range of the acoustic element 11 and the operation mode of the light emitting unit 1 a are read from the memory 36, and the position information calculation circuit 34 uses the rotary encoder (in the motor 15 of the swing mechanism unit 15 a). The position information from (not shown) is read to calculate the current swing angle of the acoustic element 11. Then, the motion calculation circuit 32, the state determination circuit 33, and the position information calculation circuit 34 read the currently set swing range of the acoustic element 11 from the memory 36 and via the drive circuit 21, the swing range of the acoustic element 11. Further, the light emission timing is controlled by the position information calculation circuit 34 and the light emission unit operation calculation circuit 35 through the drive circuit 22 as shown in FIGS.

<Usage of Third Embodiment: Gel Application Method>
Here, since ultrasonic waves do not propagate in the air, it is necessary to apply a diagnostic gel to the surface of the subject in advance so that air does not intervene between the window 12 and the surface of the subject at the time of diagnosis. Further, as shown in FIG. 13, particularly in the convex acoustic element 11 according to the third embodiment, the light emission locus of the light emitters 3 and 4 coincides with the actual swinging range of the acoustic element 11, so that the light emitter The range of the emission trajectories 1 to 4 represents the ultrasonic output region. For this reason, the diagnostician can apply the diagnostic gel in advance to the surface of the subject corresponding to the range of the emission locus of the light emitters 1 to 4 and operate the ultrasonic probe 10.

<Fourth embodiment>
In the first, second, and third embodiments, the light emitters 1 and 2 are arranged at both ends in the long axis direction of the acoustic element 11 and at the center in the short axis direction. In addition, the diagnostician needs to visually check whether or not the acoustic element 11 has returned to the center position of the swing range before starting swinging before starting the diagnostic operation in a dimly used environment. Therefore, as shown in FIGS. 14, 15A, and 15B as the fourth embodiment, the position of the light emitter 1 (or 2) when the acoustic element 11 is located at the center of the swing range. Marks M1 and M2 are provided on the surface of the window 12 corresponding to the above, and the illuminator 1 (or 2) is always turned on, so that the diagnostician can swing the acoustic element 11 before starting the diagnostic operation in a dimly used environment. It can be visually confirmed whether or not the center position of the moving range has been returned.

  Here, in the example shown in FIGS. 14, 15A and 15B, when the acoustic element 11 has returned to the center position of the swinging range normally, two marks as shown in FIG. Since M1 and M2 are arranged so as to sandwich the light emitter 1 (or 2), when the acoustic element 11 has not returned to normal, the light emitter 1 (or 2) as shown in FIG. Is shifted to either one from the marks M1 and M2, so that it can be determined to be abnormal. Further, instead, as shown in FIG. 16A, when the acoustic element 11 is normally returned to the center position of the swing range, one mark M is set so as to coincide with the position of the light emitter 1 (or 2). May be provided. In this case, when the acoustic element 11 has not returned to normal, the light emitter 1 (or 2) is displaced from the position of the mark M as shown in FIG. .

  As the configuration and arrangement position of the marks M1, M2, and M, the light-shielding marks M1, M2, and M are provided on the surface of the window 12 as shown in FIG. 17A, or as shown in FIG. It can be provided inside the window 12 or on the inner surface of the window 12 as shown in FIG. In either case, the light shielding marks M1, M2, and M appear to be shaded by the light from the light emitter 1 (or 2).

<Other usage forms and effects of light emitters 1 to 4>
Due to the propagation characteristics of the ultrasonic wave, the three-dimensional probe needs to be brought into close contact with the surface of the subject within the set swing range. For this reason, the convex surface of the window 12 is pressed against the surface of the subject. Therefore, it is necessary to ensure adhesion. Normally, the surface of the window 12 is semi-transparent so that the internal structure including the acoustic element 11 is not visible in order to maintain the appearance of the product, but light is transmitted therethrough. As shown in FIG. 18, while the entire swing range of the element 11 is pressed against the surface of the subject, the swing range of the acoustic element 11 cannot be visually observed using the light emitters 1 to 4. However, as shown in FIG. 19, if the entire swing range of the acoustic element 11 is not pressed against the surface of the subject, floating occurs between the window 12 and the subject, and the light-emitting body 1 at the raised portion is formed. Since .about.4 illuminates the object surface, the floating can be instantly visually recognized by the light.

<Error display>
Further, by using the plurality of light emitters 1 to 4 and changing the blinking pattern of the light emitters 1 to 4 when an abnormality occurs, it is possible to display the status of the probe 10 such as operation or abnormality. An example is shown below.
Motor origin detection error: Flashing light emitter 1 Element signal error: Flashing light emitters 1 and 2 alternately Malfunction: Flashing light emitters 3 and 4 alternately Speed failure: Flashing light emitters 1, 2, 3, 4 In addition to indicating the location of the error by blinking the light emitting units 1 to 4 as in the above example, it is possible to display such as indicating the criticality of the error by increasing the number of blinking locations.

<Example of abnormal display>
An example in which the light emitters 3 and 4 are alternately blinked and displayed will be described with reference to FIGS. As shown in FIG. 20, the middle point of the rocking range of the acoustic element 11 is the rocking center O. The position of the swing center O is calculated from the encoder signal from the motor 15 and preset in advance. The position where the swing center axis O and the optical axis of the light emitter 3 intersect on the surface of the window 12 is POSITION_C, and the position where the swing center axis O and the optical axis of the light emitter 4 intersect on the surface of the window 12 is POSITION_D. Therefore, as shown in FIG. 21, when the acoustic element 11 is oscillated, the position of the oscillating center O can be displayed by controlling the lighting of the acoustic element 11 around the POSITION_C and POSITION_D with a certain time width. Normally, it is displayed in a dot shape at the origin position, but when the drive system is loose, the point display moves hunting, so that an abnormal operation can be detected at an early stage.

<Puncture method>
In addition, the following use can be made by using this rocking center display function. When the brightness of the light emitters 3 and 4 is increased in the state of the swing center display function, and the plate 40 is installed as shown in FIG. 22A, the plate 40 has the POSITION_C and POSITION_D shown in FIGS. Projection light 41 is projected. Therefore, as shown in FIG. 22B, if a puncture adapter 43 with a puncture needle 42 attached to the tip is attached to the probe 10 and the projection light 41 on the plate 40 is used as a guideline for the puncture position, the puncture needle 42 is obtained. It is possible to confirm whether or not the position of the puncture needle 41 is correct by dropping it onto the surface of the plate 40. Further, as shown in FIG. 22C, by controlling the light emission timing of the light emitters 3 and 4, the guideline by the projection light 41 can be narrowed or widened. Therefore, the puncture needle can be accurately punctured at the puncture position of the subject.

  INDUSTRIAL APPLICABILITY The present invention has an effect that the swing range of an acoustic element can be visually recognized in a dim use environment, and can be used for an ultrasonic diagnostic apparatus and the like.

The perspective view which shows 1st Embodiment of the ultrasonic probe which concerns on this invention Front sectional view showing the ultrasonic probe of FIG. Side surface sectional view showing the ultrasonic probe of FIGS. 1 and 2 Perspective view showing a linear ultrasonic probe Explanatory drawing which shows the installation position of the light-emitting body in the ultrasonic probe of FIG. Side surface sectional drawing for demonstrating the rocking | fluctuation range of the acoustic element and the range of the light emission locus | trajectory of a light-emitting body in 1st Embodiment Side surface sectional drawing for demonstrating the other example of the rocking | fluctuation range of an acoustic element, and the range of the light emission locus | trajectory of a light-emitting body Side surface sectional drawing for demonstrating the rocking | fluctuation range of the acoustic element and the range of the light emission locus | trajectory of a light-emitting body in 2nd Embodiment of the ultrasonic probe which concerns on this invention The perspective view for demonstrating the range of the light emission locus | trajectory of the light-emitting body of the long axis direction center light emitter and the long-axis direction both ends in a convex type ultrasonic probe Side surface sectional drawing for demonstrating the rocking | fluctuation range of the acoustic element in 3rd Embodiment, and the range of the light emission locus | trajectory of the light-emitting body of a long axis direction center Timing chart for explaining the light emission timing of the light emitter of FIG. The block diagram which shows the structure of the mechanical scanning type ultrasonic probe and ultrasonic diagnostic apparatus main body for implement | achieving the light emission timing of FIG. The perspective view for demonstrating the coating method of a gel The perspective view which shows 4th Embodiment of the ultrasonic probe which concerns on this invention. Explanatory drawing which shows the relationship between the light-emitting body and a mark in FIG. 14 (a) When normal (b) When abnormal Explanatory drawing which shows the relationship between the light-emitting body and a mark in the modification of 4th Embodiment (a) When normal (b) When abnormal 14, 15, and 16, a side sectional view of the main part for explaining the arrangement position of the mark (a) When provided on the window surface (b) When provided inside the window (c) When provided on the window inner surface Explanatory drawing showing a case where the ultrasonic probe is correctly in contact with the subject surface (a) Front view (b) Side view An explanatory view showing a case where the ultrasonic probe is not correctly in contact with the surface of the subject (a) Front view (b) Side view Side sectional view for explaining an abnormal display position by a light emitter Timing chart for explaining light emission timing of abnormal display by light emitter Side sectional view for explaining a puncture method of a puncture needle (a) A diagram showing a projection position of a light emitter (b) A diagram showing a guideline according to the projection position of FIG. 22 (a) (c) A guideline of FIG. 22 (b) Of position adjustment

Explanation of symbols

1-4 Light emitter 1a Light emitter 10 Ultrasonic probe (probe)
DESCRIPTION OF SYMBOLS 11 Acoustic element 11a Acoustic element part 12 Window 13 Oscillation shaft 14 Drive transmission component 15 Motor 15a Oscillation mechanism part 16 Frame 17 Propagating liquid 20 Driver 30 Controller 31 CPU
32 operation calculation circuit 33 state determination circuit 34 position information calculation circuit 35 light emitting unit operation calculation circuit 36 memory 40 plate 41 projection light 42 puncture needle 43 puncture adapter

Claims (6)

An acoustic element in which piezoelectric elements of a plurality of channels are arranged and swings in a window to obtain a three-dimensional image;
A light emission locus is projected onto the subject side surface of the window along with the swinging of the acoustic element, and the light emission attached to the side surfaces at both ends in the long axis direction of the acoustic element so that the light emission locus can be visually recognized from the subject side surface. The body,
An ultrasonic probe having. In the acoustic element, a plurality of channels of piezoelectric elements from a start channel that starts two-dimensional scanning in the major axis direction to a final channel that ends two-dimensional scanning are arranged in a convex one-dimensional direction,
The ultrasonic probe according to claim 1, wherein the light emitter is disposed at both ends of the acoustic element in a major axis direction and only at a central position in a minor axis direction. The illuminant is in the longitudinal direction of the acoustic element. The ultrasonic probe according to claim 1, which is a central position and is also attached to side surfaces at both ends in the minor axis direction. A central position of the swing range of the previous SL acoustic element, characterized in that the position of the window corresponding to the long axis direction of one end of the acoustic element, the mark of shielding the light of the light emitter is provided The ultrasonic probe according to any one of claims 1 to 3 . The light emitters attached to the side surfaces at both ends in the major axis direction of the acoustic element are in the minor axis direction of the acoustic element. The ultrasonic probe according to claim 1, wherein the ultrasonic probe is located at a central position. In order to obtain a three-dimensional image while arranging a plurality of channels of piezoelectric elements from the start channel to start the two-dimensional scanning in the major axis direction of the tomographic plane to the final channel to end the two-dimensional scanning in the one-dimensional direction of the convex shape An acoustic element that swings within the window, and is disposed at both ends in the short axis direction at the center in the major axis direction of the acoustic element so as to project a light emission locus on the surface of the window along with the swinging of the acoustic element. An ultrasonic diagnostic apparatus to which an ultrasonic probe having two light emitters attached to an acoustic element is connected,
Means for controlling the light emission timing of the two light emitters so that the range of the light emission locus of the two light emitters is the same as the swing range of the acoustic element;
An ultrasonic diagnostic apparatus.

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