JP6815845B2 - Acoustic wave receiver - Google Patents

Description

The present invention relates to an acoustic wave receiver including a scanning unit that scans a probe array in two dimensions.

A probe array that receives acoustic waves from a subject and a two-dimensional scanning unit that scans the probe array two-dimensionally in a horizontal plane are provided, and an acoustic wave receiver that acquires acoustic wave images of a subject is known. Has been done.

Patent Document 1 describes an acoustic wave receiving device that obtains a photoacoustic image of the breast of a subject by receiving an acoustic wave generated in the subject by irradiating the subject with near-infrared light. ing. The acoustic wave receiving device described in Patent Document 1 includes a support base for supporting the subject, a liquid tank provided with a probe array and storing an acoustic matching liquid, and a plurality of devices connected to the probe array. It is disclosed that a signal line is provided.

It is disclosed that the support base described in Patent Document 1 is provided for the subject to take a prone position, and that the support is provided with an insertion slot for inserting the breast one by one. There is.

Japanese Unexamined Patent Publication No. 2015-205401

In the acoustic wave receiving device described in Patent Document 1, the lower limit of the height of the support base is limited by the two-dimensional scanning unit that scans the probe array. Specifically, the height of the two-dimensional scanning unit is the XY stage in which the X stage and the Y stage are stacked in the vertical direction to scan the probe array, and a plurality of bundled signals connected to the probe array. It was limited by the length of the bending section of the line and sometimes became 0.6 m (about 2 ft.) Or more. For this reason, the subject placed on the support stand may feel anxious about the change in the shooting posture on the support stand and the movement of the subject. Further, the upper limit of the width of the support base is limited from the viewpoint of accessibility during maintenance by the engineer to the two-dimensional scanning unit and the probe array arranged under the support portion of the support base. Therefore, the subject feels even more anxious when moving on the support table, changing the shooting posture, and the like.

The length of the bending section may be limited by an optical fiber optically connected to a light irradiation unit provided in the probe array in order to irradiate the subject with near-infrared light. ..

The present invention provides an acoustic wave receiving device having a two-dimensional scanning unit and a support base, which has improved usability regarding anxiety of a subject without deteriorating usability related to the maintainability of the device. ..

The acoustic wave receiving device according to the embodiment of the present invention includes a support base having an insertion portion and a support portion for supporting the subject, and an acoustic wave propagated from the subject inserted through the insertion portion. A probe array having a plurality of probes for receiving the receiver, and a scanning section for moving the probe array two-dimensionally in parallel to the horizontal plane with respect to the insertion portion, and below the support portion. A sound wave receiving device including a receiving scanning unit located at the above and a plurality of signal lines for transmitting acoustic wave signals output by the plurality of probes, wherein the scanning unit captures the probe array. a first base to be movable in a first direction, is arranged on the lower side than the first base, second base that allows moving the first base in a second direction intersecting the first direction The second base is provided with a lower penetrating portion through which at least one of the probe array and the plurality of signal lines is movably penetrated.

According to the present invention, it is possible to provide an acoustic wave receiving device having a low-floor support base and improved usability of a subject.

In the cross-sectional view (a), top view (b), liquid tank (c), first base (d), and second base (e) of the acoustic wave receiving device according to the first embodiment of the present invention. is there. It is a partially enlarged view (a)-(d) of the second base of the acoustic wave receiving apparatus which concerns on 2nd to 5th Embodiment of this invention. It is a partially enlarged view (a)-(d) of the 1st base of the acoustic wave receiving apparatus which concerns on 6th to 9th Embodiment of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
<Acoustic wave receiver>
1 (a) and 1 (b) are a cross-sectional view and a plan view showing an acoustic wave receiving device 100 according to a first embodiment of the present invention, respectively. FIG. 1 (a) is a vertical cross-sectional view of the structure along the CC'plane of FIG. 1 (b) as a virtual view. The CC'plane is an irregular bent surface for the sake of understanding. FIG. 1B is a top view of the acoustic wave receiving device 100 shown in FIG. 1A as viewed from above the z-axis. FIG. 1 (c) is an enlarged partially enlarged view of the liquid tank 42 shown in FIG. 1 (a). Further, FIGS. 1 (d) and 1 (e) are partial enlargements of the second base 462 and the first base 460, respectively, along the BB'plane and the AA'plane shown in FIG. 1 (a). It is a figure.

The acoustic wave receiving device 100 according to the first embodiment includes a support base 20, a probe array 44, a two-dimensional scanning unit 46, a plurality of signal lines 60, and a signal repeater 80. Each element will be described below.

As shown in FIG. 1A, the support base 20 is provided with an insertion portion 22 into which the subject 201, which is a part of the subject 200, is inserted, and the support portion 24 for supporting the subject 200 and the support portion 24. have.

As shown in FIG. 1A, the support base 20 of the present embodiment further includes a holding portion 25 that holds the subject 201 at a position overlapping the insertion portion 22, a chair 27 on which the subject 200 sits, and a top plate. A side panel 29 connected to four sides around the upper support portion 24 is provided. The support base 20 further includes four columns 29 that support the support portion 24, as shown in FIG. 1 (b).

The chair 27 is provided on the support portion 24 in order to stabilize the shooting posture of the subject 200. Further, the side panel 29 surrounds the liquid tank 42, the first base 460, the second base 462, and the light irradiation unit 47 that are movable at the time of photographing, and the moving space of the subject 200 and the operator (not shown) and the inside of the device. Is provided to separate the. The support portion 24 or the chair 27 may take a form in which a cushion (not shown) is arranged in order to reduce the burden on the subject 200 at the time of photographing.

The insertion portion 22 is an insertion opening opened in the support portion 24 so that the subject 201, which is a part of the subject 200, can be inserted. The support portion 24 can place a portion of the subject 200 that has not been inserted into the insertion portion 22, and can stabilize the photographing posture of the subject 200. The part to be imaged includes the upper limbs, lower limbs, head, breast, etc. of the subject 200, but in FIG. 1A, the left foot of the subject 201 is inserted into the insertion portion 22, which is not shown. Shows a sitting posture in which the right foot of the head is placed on the mounting portion of the support portion 24.

The holding portion 25 is fixed to the supporting portion 24 at a position overlapping the insertion port 22 with the intention of stabilizing the subject 201 at the time of photographing. The holding portion 25 has a semi-container shape protruding downward from the supporting portion 24, and makes it possible to hold the subject 201 below the supporting portion 24.

The holding unit 25 is further composed of an acoustic matching material having acoustic wave propagating property (low attenuation) for the probe element 44 to receive the acoustic wave propagating from the subject 201, and is transmitted in the infrared region. Resin materials such as IR rubber, silicone rubber, and polyethylene terephthalate are applied. An embodiment of the present invention also includes a form in which a mesh-shaped resin material having a rigidity higher than that of the flexible member is used in combination for the purpose of compensating for the lower end of the holding position because the resin material is flexible.

It is desirable that the holding portion 25 has a sealing property that separates a space that prevents the acoustic matching liquid 2 (2b) stored in the liquid tank 42 from coming into direct contact with the subject 201. This makes it possible to ensure the hygiene of the acoustic matching liquid 2 (2b) stored in the liquid tank 42. The holding portion 25 having such a sealing property and a semi-container-shaped protruding portion can store the acoustic matching liquid 2 (2a), and can ensure the acoustic coupling between the holding portion 25 and the subject 201. is there.

Further, the lower limit of the height of the support base 20 is limited by the height of the reception scanning unit 40 described later. Therefore, in order to reduce the anxiety about the height of the support base 20 that the subject 200 remembers when moving or changing the posture on the support base 20 for taking the shooting posture, the height of the reception scanning unit 40 is set. It was desired to lower the floor of the support base 20 by lowering it.

In order to reduce the anxiety of the subject 200, a handrail, a protective fence, etc. (not shown) may be appropriately provided on the support base 20, but the camera operator communicates with the subject 200 and adjusts the shooting posture. There are certain restrictions to install it at a height and width that does not interfere with the installation. Therefore, the lowering of the floor of the support base 20 according to the present invention has the effect of improving the usability of the subject 200 and the camera operator even when applied to the acoustic wave receiving device 100 provided with a handrail or the like. ..

Next, the reception scanning unit 40, which is a feature of the present invention, will be described with reference to the drawings of FIGS. 1A to 1E.

The reception scanning unit 40 moves the probe array 44, which receives the acoustic wave propagated from the subject 201 inserted via the insertion section 22, and the probe array 44 in two dimensions parallel to the horizontal plane. It includes a dimensional scanning unit 46 and is located below the support unit 24.

The horizontal in the specification of the present application is a physical quantity observable by a spirit level, a laser displacement system, or the like. There is an effective inclination allowance in the horizontal in the acoustic wave receiving device 100 according to the present invention, and the upper and lower limits of tan θ corresponding to the inclination angle are ± 0.5 mm / m with respect to the perfect horizontal perpendicular to the vertical direction. Is within. The upper and lower limits of tan θ corresponding to such a tilt angle are preferably limited to within ± 0.1 mm / m, more preferably within ± 0.04 mm / m.

As shown in FIG. 1 (c), the probe array 44 of the present embodiment has a plurality of arranged probes (44a, 44b, ...) And a hemispherical shape that supports each probe. It is provided with an array support portion 45 and is arranged at the bottom of the liquid tank 42. The probe array 44 is paraphrased as forming a part of the liquid tank 42.

As shown in FIGS. 1A and 1C, the liquid tank 42 stores the acoustic matching liquid 2 (2b) above the liquid level (2L) at which the subject 201 and the probe array 44 acoustically bond. It is provided with a tank wall 42w that enables the propagation of acoustic waves from the subject 201 to the probe array 44.

As shown in FIGS. 1A and 1B, the two-dimensional scanning unit 46 is arranged under the support unit 24 and allows the probe array 44 to move in the first direction d1. It has. The first base 460 of the present embodiment makes the probe array 44 movable in the first direction d1 (x direction) by moving the liquid tank 42.

As shown in FIGS. 1A and 1B, the two-dimensional scanning unit 46 is similarly arranged below the first base 460, and the first base 460 intersects the first direction d1. A second base 462, which is movable in the direction d2 (y direction), is provided.

The first base 460 and the second base 462 are paraphrased as XY stages in which the probe array 44 is two-dimensionally moved relative to the insertion portion 22 in parallel with the horizontal plane. The first base 460 and the second base 462 are searched by any two-dimensional scanning pattern including rotary scanning, spiral scanning, cow-cultivating scanning, raster scanning, etc., based on the scanning signal output from the scanning control circuit 366 described later. Allows scanning of the tentacle array 44.

The two-dimensional scanning unit 46 includes a scanning control circuit 466 that outputs a scanning signal to the first base 460 and the second base 462, and a scanning signal cable 468 that connects the first base 460, the second base 462, and the scanning control circuit 466. It has. The two-dimensional scanning unit 64 of the present embodiment includes a third base 464 that is arranged below the second base 462, supports the second base, and is fixed to the floor surface.

The scan control circuit 466 is arranged outside the support base 20 and is connected to each of the first base 460 and the second base 462 via a scan signal cable 468 arranged through a cable opening 29a provided in the side panel 29. On the other hand, a scanning signal is output. By making the transmission of the scanning signal wireless, the scanning signal cable 468 can be omitted.

The acoustic wave receiving device of the present embodiment further passes through a plurality of signal lines 60 for transmitting acoustic wave signals output by each of the plurality of probes (44a, 44b, 44i ...) And a plurality of signal lines. It includes a probe array 44 and a signal repeater 80 that is electrically connected.

The probe array 44 of the present embodiment outputs the received acoustic wave as an analog acoustic wave signal. Therefore, the plurality of signal lines 60 have the number of channels corresponding to the plurality of probes (44a, 44b, 44i) of the probe array 44, and transmit the acoustic wave signals (analog) of each channel in parallel. It is a parallel transmission cable 62. The parallel transmission cable 62 is a group of cables in which a plurality of signal lines 60 are bundled in part or in whole.

As shown in FIG. 1C, the plurality of signal lines 60 are connected to each of the plurality of probes (44a, 44b, 44i) and are bundled with each other. By forming a plurality of signal lines 60 in a bundle form, the signal lines are entangled with each other due to the two-dimensional scanning of the probe array 44, collide with other members, and occur at the connection with each probe. It enables smooth two-dimensional scanning of the probe array 44 by reducing stress fluctuations and the like.

The signal repeater 80 includes an AD converter 82 that converts an analog acoustic wave signal transmitted in parallel from the probe array 44 into a digital acoustic wave signal. The signal repeater 80 serially transmits the converted digital acoustic wave signal to the integrated control unit 90 including a signal processing circuit (not shown) via the serial cable 64. The serial cable 64 is a cable through which digital signals are transmitted in time series.

Therefore, the signal repeater 80 is a repeater that relays a cable group (parallel cable 62) in which analog signals are transmitted in parallel and a cable (serial cable 64) in which digital signals are transmitted in time series. In other words.

The signal processing circuit included in the integrated control unit 90 reconstructs the digital acoustic wave signal output from the signal repeater 80 and outputs the captured image to a storage medium (not shown) or a display means 92. Further, a mode in which the integrated control unit 90 includes a storage medium (not shown) is included as an embodiment of the present invention. The integrated control unit 90 can output a scanning command to the scanning control circuit 466, and the scanning control circuit 466 outputs a scanning signal to the first base 460 and the second base 462 based on the scanning command. To do.

The signal repeater 80 is arranged on the floor in a stationary state with respect to the support base 20. More specifically, as shown in FIG. 1B, the signal repeater 80 is arranged outside the range of motion 46x, 46y of the two-dimensional scanning unit 46, so that a plurality of signal lines are generated during the two-dimensional scanning. The length of the predetermined bending-deflection section required by 60 is secured. The length of the predetermined bending-deflection section The length of the BR60 depends on the number of channels in which the plurality of signal lines 60 (62) are bundled, that is, the number of bundles, but requires about 10 to 30 cm for 512 to 1024 channels. And. The handle form includes a form in which the signal lines 60 of all the channels are bundled into one, a main cable form in which a plurality of sub-bundle cables in which several to 200 lines are bundled, and the like are further bundled.

That is, when the probe array 44 is multi-channeled to acquire a high-resolution acoustic wave image, it means that a longer bending-deflection section is required in the height direction and the horizontal direction. Therefore, the present invention ensures a more useful technical significance when applied to a high-resolution acoustic wave receiver 100 including a two-dimensional scanning unit 46 and a probe array 44.

Further, as shown in FIG. 1C, the probe array 44 of the present embodiment is used as an optical fiber 48 for transmitting near-infrared light output from a light source 49 that outputs pulsed light in the near-infrared light region. It includes an optically coupled light irradiation unit 47. The probe array 44 is configured to receive the photoacoustic wave generated inside the subject 201 by the near-infrared light emitted from the light irradiation unit 47 toward the subject 201. The light source 49 is arranged outside the range of motion 46x and 46y of the two-dimensional scanning unit 46 (outside the range of motion).

The light irradiation unit 47 of the present embodiment is two-dimensionally scanned along the horizontal plane by the two-dimensional scanning unit 46 in synchronization with the plurality of probes (44a, 44b, 44i ...). Therefore, the optical fiber 48, like the plurality of signal lines 60, has a bending-deflection section so that the transmitted light is not attenuated depending on the position of the light irradiation unit 47 during scanning of the probe array 44. The lower limit of the length is set. The length of the bending-flexing section BR48 of the optical fiber 48 may require about several cm to 30 cm.

<Lower penetration part 462 tp>
The second base 462 has an annular second frame portion 462f that forms a lower penetrating portion 462 tp through which at least one of the probe array 44 and the plurality of signal lines 60 movably penetrates. That is, the second base 462 has a second frame portion 462f that separately surrounds at least one of the probe array 44 and the plurality of signal lines 60 (62), and the lower penetrating portion 462 tp is formed by the second frame portion 462f. being surrounded.

In the present embodiment, as shown in FIGS. 1A and 1E, a lower penetration portion 462 tp is provided on the second base 462 so that the plurality of signal lines 60 in the bundled form can penetrate in the vertical direction. Has been done. By providing the lower penetrating portion 462 tp on the second base 462, it is possible to superimpose the bending-deflection section BR60 of the plurality of signal lines 60 on the range of motion of the two-dimensional scanning portion 64 including the second base 462. It becomes. As a result, at least the height of the portion of the bending-deflection section BR60 along the vertical direction located above the second base 462 can be reduced or set to 0, and the support base 20 can be lowered. It becomes possible.

The lower penetration portion 462 tp of the second base 462 of the present embodiment is configured so that the optical fiber 48 also penetrates in the vertical direction. By providing the lower penetrating portion 462 tp on the second base 462 in this way, it is possible to superimpose the bending-flexion section BR48 of the optical fiber 48 on the range of motion of the two-dimensional scanning portion 64 including the second base 462. It becomes. As a result, at least the height of the portion of the bending-deflection section BR48 along the vertical direction located above the second base 462 can be reduced or set to 0, and the support base 20 can be lowered. It becomes possible.

The range of motion of the two-dimensional scanning unit 64 is shown in FIG. 1 (b), the range of motion 46x along the second direction, the range of motion 46y along the first direction, and FIG. 1 (a). , Corresponds to the height at which the first base 460 and the second base 462 are laminated.

<Upper penetration part 460 tp>
The acoustic wave receiving device 100 according to the present embodiment includes a first base 460 provided with an upper penetrating portion 460 tp, similarly to the second base 462.

The first base 460 has an annular first frame portion 460f that forms a lower penetrating portion 460 tp through which at least one of the probe array 44 and the plurality of signal lines 60 movably penetrates. That is, the first base 460 has a first frame portion 460f that separately surrounds at least one of the probe array 44 and the plurality of signal lines 60 (62), and the upper penetrating portion 460 tp is formed by the first frame portion 460f. being surrounded.

In the present embodiment, as shown in FIGS. 1A and 1D, an upper penetrating portion 460 tp is provided on the first base 460 so that the probe array 44 can penetrate in the vertical direction. .. By providing the first base 460 with an upper penetrating portion 460 tp, the probe array 44 can be overlapped with the range of motion of the two-dimensional scanning portion 64. As a result, at least the height of the portion of the probe array 44 located above the first base 460 can be reduced or set to 0, and the support base 20 can be further lowered. It becomes.

The upper penetration portion 460 tp of the first base 462 is a hollow region through which at least one of the plurality of signal lines 60 and the optical fiber 48 is penetrated, similarly to the lower penetration portion 462 tp of the second base 462. ..

<Second and third embodiments>
The second bases 462 according to the second and third embodiments shown in FIGS. 2 (a) and 2 (b) are not partially closed in the circumferential range surrounding the lower penetrating portion 462 tp, respectively. It differs from the second base 462 according to the first embodiment in that it has an open portion.

The lower penetrating portion 462tp according to the first embodiment was a penetrating port surrounded by a second frame portion 462f in an annular shape. However, as shown in FIGS. 2 (a) and 2 (b), the lower penetration portion 462 tp according to each of the second and third embodiments is formed by at least the probe array 44 and the plurality of signal lines 60 (62). One is incompletely surrounded. The second frame portion 462f preferably surrounds the lower penetrating portion 462 tp in the azimuth direction within a range of 270 degrees (1.5 π radians) or more. In other words, the second frame portion 462f preferably has a region surrounded by 270 degrees (1.5π radians) or more in the azimuth direction in the lower penetrating portion 462 tp. The azimuth direction in this embodiment corresponds to the angle formed by the two vectors in the horizontal plane (xy plane). The azimuth direction may be paraphrased as the circumferential direction.

Further, such an opening portion may be provided in a region extending in the x direction of the second frame portion 462f.

<Fourth Embodiment>
The second base 462 according to the fourth embodiment shown in FIG. 2C is the second base according to the first embodiment in that the probe array 44 penetrates vertically through the lower penetrating portion 462 tp. Different from 462. Also in this embodiment, the effect of reducing the height of the two-dimensional scanning unit 46 and the receiving scanning unit 40 and lowering the floor of the support base 20 can be obtained.

<Fifth Embodiment>
In the second base 462 according to the fifth embodiment shown in FIG. 2D, a plurality of signal lines 60 (62) and an optical fiber 48 are connected to a second frame portion 462f via a flexible member 462d. In that respect, it differs from the second base 462 according to the first embodiment. The flexible member 462d may be stretched on the second frame portion 462f so as to block the lower penetrating portion 462 tp, or may be stretched on the second frame portion 462 f so as not to block a part of the lower penetrating portion 462 tp. It may be stretched. Further, the flexibility member 462d may not be connected to at least one of the probe array 44 and the plurality of signal lines 60 (62).

That is, the lower penetrating portion 462 tp may be provided so that at least one of the probe array 44 and the plurality of signal lines 60 (62) can be movably penetrated, and even if it is hollow, it is acceptable. A sex member 462d may be interposed.

In the flexible member 462d shown in FIG. 2D, a plurality of signal lines 60 (62) and an optical fiber 48 penetrating vertically are + x with respect to the lower penetrating portion 462 tp as the probe array 44 scans. It shows a state in which the position is biased in the direction. As the flexible member 462d, an elastic body that expands and contracts or a film-like member that bends can be applied.

<6th and 7th embodiments>
The first bases 460 according to the sixth and seventh embodiments shown in FIGS. 3A and 3B are not partially closed in the circumferential range surrounding the upper penetrating portion 460 tp, respectively. It differs from the first base 460 according to the first embodiment in that it has a part.

The upper penetrating portion 460 tp according to the first embodiment was a penetrating port surrounded in an annular shape by the first frame portion 460f. However, as shown in FIGS. 3A and 3B, the lower penetration portion 462tp according to the sixth and seventh embodiments is at least one of the probe array 44 and the plurality of signal lines 60 (62). Is incompletely surrounded. The first frame portion 460f preferably surrounds the upper penetrating portion 460 tp in the circumferential direction within a range of 270 degrees (1.5 π radians) or more.

Further, such an opening portion may be provided in a region extending in the y direction of the first frame portion 460f.

<8th Embodiment>
The first base 460 according to the eighth embodiment shown in FIG. 3C is the first embodiment in that a plurality of signal lines 60 (62) and an optical fiber 48 penetrate vertically through the upper penetration portion 460 tp. It differs from the first base 462 according to the form. Also in this embodiment, the effect of reducing the height of the two-dimensional scanning unit 46 and the receiving scanning unit 40 and lowering the floor of the support base 20 can be obtained.

<9th embodiment>
The first base 460 according to the ninth embodiment shown in FIG. 3D is the first in that the probe array 44 is connected to the first frame portion 460f via the flexible member 460d. It is different from the first base 460 according to the embodiment of. The flexible member 460d may be stretched on the first frame portion 460f so as to close the upper penetrating portion 460 tp, or may be stretched over the upper penetrating portion 460 tp, similarly to the flexible member 462d according to the fifth embodiment. It may be stretched on the first frame portion 462f so as not to partially block it. Further, the flexibility member 460d may not be connected to at least one of the probe array 44 and the plurality of signal lines 60 (62).

That is, the upper penetrating portion 460 tp may be provided so that at least one of the probe array 44 and the plurality of signal lines 60 (62) can be movably penetrated, and even if it is hollow, it is flexible. The member 460d may intervene.

In the flexible member 460d shown in FIG. 3D, the probe array 44 penetrating up and down is positioned in the + x direction with respect to the upper penetrating portion 460 tp as the probe array 44 scans. Indicates the state of being. As the flexible member 460d, an elastic body that expands and contracts or a flexible film-like member can be applied as in the flexible member 462d.

100 Acoustic wave receiver 22 Insertion part 24 Support part 20 Support base 44a, 44b Detector 44 Detector array 46 Two-dimensional scanning unit 46x Range of movement in the second direction of the two-dimensional scanning unit 46y No. 2 of the two-dimensional scanning unit Range of movement in one direction 40 Reception scanning unit 60 Signal line 80 Signal repeater 460 First base 462 Second base 462 tp Lower penetration 460 tp Upper penetration

Claims (22)

A support base having an insertion part and a support part for supporting the subject,
A probe array having a plurality of probes that receive acoustic waves propagated from a subject inserted through the insertion portion, and the probe array are placed in the insertion portion in two dimensions parallel to a horizontal plane. A receiving scanning unit that includes a scanning unit that moves relative to each other and is located below the support portion.
An acoustic wave receiving device including a plurality of signal lines for transmitting acoustic wave signals output by the plurality of probes.
The scanning unit includes a first base that can move the probe array in the first direction, is arranged on the lower side than the first base, first crosses the first base and the first direction It comprises a second base which can be moved in a second direction, wherein the second base is lower through portion is provided at least one of said plurality of signal lines and the probe array penetrates movably An acoustic wave receiver characterized by being present. The acoustic wave receiving device according to claim 1, wherein the first direction and the second direction are parallel to the horizontal plane. The first or second aspect of the present invention, wherein the second base has a second frame portion that surrounds the second base portion so as to be separated from each other, and the lower penetrating portion is surrounded by the second frame portion. Acoustic wave receiver. The acoustic wave receiving device according to claim 3, wherein the lower penetrating portion is a penetrating port surrounded by the second frame portion in an annular shape. The acoustic wave receiving device according to claim 3 or 4, wherein at least one of the probe array and the plurality of signal lines is connected to the second frame portion via a flexible member. .. Any of claims 1 to 5, further comprising a signal repeater that is electrically connected to the probe array via the plurality of signal lines and is arranged outside the range of motion of the scanning unit. The acoustic wave receiving device according to item 1. The acoustic wave receiving device according to claim 6, wherein the signal repeater is arranged outside the support base in the horizontal plane. The acoustic wave receiving device according to claim 6 or 7, wherein the signal repeater is stationary with respect to the support base. The acoustic wave receiving device according to any one of claims 6 to 8, wherein the signal repeater includes an AD converter that converts an analog signal output by the probe into a digital signal. The acoustic wave receiving device according to claim 9, wherein the signal repeater relays a cable group in which the analog signal is transmitted in parallel and a cable in which the digital signal is transmitted in time series. .. The first base is provided with an upper penetrating portion through which at least one of the probe array and the plurality of signal lines is movably penetrated, according to any one of claims 1 to 10. The acoustic wave receiver described. 11. The first base has a first frame portion that is separated from the one and surrounds the one , and the upper penetrating portion is a portion surrounded by the first frame portion. The acoustic wave receiver described in. The acoustic wave receiving device according to claim 12, wherein the upper penetrating portion is a penetrating port surrounded by the first frame portion in an annular shape. The acoustic wave receiving device according to claim 12 or 13, wherein at least one of the probe array and the plurality of signal lines is connected to the first frame portion via a flexible member. .. Wherein further comprising a liquid bath in which acoustic matching liquid is stored in the above liquid level of respectively acoustically coupled with the probe array with the analyte, wherein the probe array, a portion of the liquid tank The acoustic wave receiving device according to any one of claims 1 to 14, wherein the acoustic wave receiving device comprises the above. The acoustic wave receiving device according to claim 15, wherein the first base is connected to the probe array via the liquid tank. The first base is any one of claims 1 to 16, characterized in that the probe array and an upper penetrating portion through which at least one of the plurality of signal lines movably penetrates are provided. The acoustic wave receiver described in. The acoustic wave receiving device according to any one of claims 1 to 17, wherein the probe array is an array of the plurality of probes. The acoustic wave according to any one of claims 1 to 18, wherein the plurality of signal lines are provided so as to transmit an acoustic wave signal output by each of the plurality of probes. Receiver. It is characterized by further having a light source arranged outside the movable range of the scanning unit, a light irradiation unit connected to the probe array, and an optical fiber that optically couples the light source and the light irradiation unit. The acoustic wave receiving device according to any one of claims 1 to 19. The acoustic wave receiving device according to claim 20, wherein the optical fiber is arranged so as to movably penetrate the lower penetrating portion. The optical fiber further includes a light source arranged outside the movable range of the scanning unit, a light irradiation unit provided in the probe array, and an optical fiber that optically couples the light source and the light irradiation unit. The acoustic wave receiving device according to any one of claims 11 to 14, wherein is arranged so as to movably penetrate the lower penetrating portion.

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