JP2006230911A - Ultrasonic diagnostic equipment and retainer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment and a retainer capable of improving the reliability of an ultrasonic diagnosis. <P>SOLUTION: This ultrasonic diagnostic equipment is provided with a probe 12 to be stuck to the body surface of a subject by a sticking device. The sticking positions of the probe 12 and the sticking device are retained by a retainer 16. The retainer 16 comprises an abutment plate 18 abutting on the body surface in the periphery of the sticking device and the probe 12 and pressing the body surface, and a belt member 20 retaining the abutment plate 18 with its abutting on the body surface. The abutment plate 18 abuts on and presses the periphery of the probe 12 to restrict the movement of the skin in the periphery of the sticking position and retain the positions of the probe 12 and the sticking device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ultrasonic diagnostic apparatus including an ultrasonic probe that is attached to a body surface of a subject, and a holding device that holds the position of the attached ultrasonic probe.

  2. Description of the Related Art Conventionally, an ultrasonic diagnostic apparatus that transmits an ultrasonic wave to a diagnosis target part inside a subject and acquires the state of the diagnosis target part based on a reflection signal obtained at that time is widely known. . In this ultrasonic diagnostic apparatus, diagnosis is performed by bringing an ultrasonic probe that transmits and receives ultrasonic waves into contact with a body surface in the vicinity of a region to be diagnosed.

  By the way, in recent years, in ultrasonic diagnosis, there is a demand for acquiring not only a temporary state of a region to be diagnosed but also a change with time and a change before and after applying some load to the subject. In order to satisfy such a demand, it is necessary to hold the position of the ultrasonic probe in a fixed state. However, it has been difficult to hold the ultrasonic probe in a predetermined position by a human hand.

  Therefore, Patent Document 1 discloses a wearable probe including an arm band wound around a subject's leg or the like, and a single vibrator fixed to the arm band. By attaching this arm band to a leg or the like, the single vibrator is held at a predetermined position. Patent Document 2 discloses an ultrasonic probe device including a holding unit that holds an ultrasonic probe and a holding leg that is provided on the outer periphery of the holding unit. The holding leg can be freely deformed according to the body surface shape of the subject. Then, the position of the ultrasonic probe is held by sticking this holding leg to the surface of the subject with an adhesive tape or the like.

JP 2004-298205 A Japanese Patent No. 2664562

  However, each of the above techniques is effective for maintaining the position of the ultrasound probe with respect to the body surface of the subject, but is not necessarily effective for maintaining the position with respect to the diagnosis target site inside the subject. . Since the above technique is fixed to the body surface of the subject, the ultrasonic probe also moves when the body surface, that is, the skin or the like moves relative to the diagnosis target region. And the relative positional relationship between the diagnosis target region and the diagnosis target region are shifted. In many cases, the relative movement amount between the ultrasonic probe and the diagnosis target part accompanying the movement of the body surface is relatively small. However, such a small movement is also a problem when it is desired to acquire a minute change in the site to be diagnosed.

  For example, when diagnosing the degree of fusion of a fractured bone, it may be performed based on the amount of bone displacement when a load is applied. In this case, the site to be diagnosed is a bone, but the amount of displacement is often very small. When diagnosing such a small displacement, the relative movement between the ultrasound probe and the diagnosis target part accompanying the movement of the body surface becomes a big problem, and as a result, the reliability of the ultrasound diagnosis is reduced.

  Therefore, an object of the present invention is to provide an ultrasonic diagnostic apparatus and a holding apparatus that can further improve the reliability of ultrasonic diagnosis.

  The ultrasonic diagnostic apparatus of the present invention transmits an ultrasonic wave to a diagnostic part inside a subject and receives an echo signal thereof, and the ultrasonic probe, the diagnostic part. An adhering means for adhering to a body surface in the vicinity of the body, an abutting plate that abuts on the body surface around the adhering means and the ultrasonic probe, and presses the body surface; and And a holding member that holds the body surface in contact with the body surface.

  In a preferred aspect, the holding member is made of a material that can be deformed according to the shape of the body surface, and is wound around the outer periphery of the subject with the contact plate sandwiched between the body surface and the contact member. It is a band member. It is desirable that the inner diameter of the holding member can be adjusted according to the outer peripheral length of the subject. Moreover, it is desirable that the holding member has at least a stretchable part made of a material that can be stretched in the circumferential direction of the subject.

  In another preferred aspect, the contact plate is a plate material provided with an opening that surrounds the ultrasonic probe and the sticking tool with a predetermined gap. As for this contact plate, it is desirable that the contact surface that contacts the body surface is provided with a convex portion protruding inward of the body surface.

  In another preferred aspect, the sticking means includes a container that accommodates the ultrasonic probe in a state where an ultrasonic transmission / reception surface is exposed, and a flange member that extends outward from a lower end of the container. An adhesive member for adhering the flange member to the body surface.

  Another holding device according to the present invention is a holding device that holds an attachment position of an ultrasonic probe that is attached to a body surface of a subject, and is attached to the body surface of the subject. A contact plate that contacts the body surface around the ultrasonic probe and presses the body surface; and a holding member that holds the contact plate in contact with the body surface.

  According to the present invention, when the contact plate presses the body surface around the ultrasonic probe and the attaching means, the movement of the surrounding body surface is limited. As a result, the relative positional relationship of the ultrasonic probe with respect to the diagnosis target part is maintained, and ultrasonic diagnosis with higher reliability is possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of an ultrasonic diagnostic apparatus 10 according to an embodiment of the present invention. The ultrasonic diagnostic apparatus 10 is suitable for continuously diagnosing a specific diagnosis target part for a certain period of time. In the following, a case of performing a fusion (bonding) diagnosis of a fractured bone will be described as an example.

  The probe 12 is an ultrasonic probe that transmits and receives ultrasonic waves, and nine single transducers are arranged in a 3 × 3 array. Each single transducer transmits an ultrasonic wave and receives a reflected wave in accordance with an instruction from a transmission / reception unit 24 described later. The received reflected wave is output to the transmitter / receiver 24 as an echo signal via the probe cable 13 that connects the probe 12 and the apparatus main body 22.

  Here, the probe 12 has a configuration in which the number of vibrators is extremely smaller than that of a normal probe, in order to reduce the size and weight of the probe. That is, at the time of bone fusion diagnosis, the subject is caused to exercise so that a load is applied to the fracture site with the probe 12 attached to the body surface of the subject. At this time, in order to prevent the probe 12 from hindering the movement of the subject and to prevent the displacement of the probe 12 due to its own weight, in this embodiment, the number of vibrators is reduced, and the probe 12 is reduced in size. It is lighter.

  The probe 12 is attached to the body surface of the subject by the attaching tool 14. The sticking tool 14 will be described in detail later, but a standoff having adhesiveness is used. A standoff is a medium on a gel that transmits ultrasound. In this embodiment, an adhesive material is selected for the standoff and used as a probe sticking tool.

  The holder 16 holds the relative positional relationship between the attached probe 12 and the diagnosis target part (bone), and a contact plate 18 that comes into contact with the body surface of the subject, and the contact plate And a belt member 20 that holds the belt 18. The contact plate 18 limits the movement of the body surface by contacting the body surface around the attachment position. And the relative positional relationship of the stuck probe 12 and a diagnostic object site | part (bone) is hold | maintained by restrict | limiting the motion of a body surface. The specific configuration of the holder 16 will be described in detail later.

  The apparatus main body 22 is configured by unitizing a transmission / reception unit 24, a signal processing unit 26, a control unit 32, a display 34, and the like. In response to an instruction from the control unit 32, the transmission / reception unit 24 supplies a transmission signal that instructs the single transducer of the probe 12 to transmit ultrasonic waves. The echo signal output from the probe 12 is received and subjected to signal processing such as phasing addition, gain adjustment, and dynamic range adjustment.

  The signal processing unit 26 is a circuit that performs necessary processing on the received signal, and performs signal processing for forming the B mode, signal processing for forming the M mode, and the like according to the display mode. The signal processing unit 26 performs a so-called echo tracking process in which a bone surface portion is extracted from the obtained echo signal and tracking is performed. Specifically, the position of the tracking point is detected from the amplitude of an echo signal obtained by transmitting an ultrasonic wave to a specific bone point, that is, a so-called tracking point. For this echo tracking process, a well-known technique, for example, a technique detailed in Japanese Patent Application Laid-Open No. 2004-298205 can be used.

  The output processing unit 28 performs coordinate conversion from the transmission / reception coordinate system to the display coordinate system, interpolation processing, and the like on the echo signal to form ultrasonic image data. The formed ultrasonic image data is output to the display 34. The output processing unit 28 also converts the position of the obtained tracking point, that is, the surface position of the bone into a numerical value or a graph and outputs it to the display. The control unit 32 controls the entire apparatus main body unit 22. An instruction from the user is input to the control unit 32 via the operation unit 30. The control unit 32 outputs a control signal to each unit constituting the apparatus main body unit 22 according to the instruction from the user and controls it.

  FIG. 2 is a diagram illustrating a state in which the ultrasonic diagnosis apparatus 10 performs a fusion diagnosis of the lower leg bone of the subject 11. When performing a bone fusion diagnosis, the probe 12 is attached to the body surface 15 near the fracture site, which is the site to be diagnosed. At that time, in order to prevent the positional deviation of the stuck probe 12, the holder 16 including the belt member 20 and the contact plate 18 is attached. In this state, the subject 11 is caused to exercise such that a load is applied to the bone to be diagnosed, specifically, walking, and ultrasonic waves are transmitted and received. The bone subjected to the load is displaced according to the degree of fusion. That is, when the degree of fusion is low, the displacement is large with a little load, and when the degree of fusion is high, the displacement is small even when a load is applied. In the fusion diagnosis, the amount of displacement of the bone subjected to this load is detected by echo tracking, and the inclination angle is obtained from the amount of displacement. Then, the degree of fusion is diagnosed based on the obtained inclination angle.

  FIG. 3 is a perspective view of the probe 12 and the sticking tool 14 for sticking the probe 12 to the body surface in the present embodiment. In the present embodiment, the standoff 36 is used as the sticking tool 14. The standoff 36 is a gel-like medium that transmits ultrasonic waves, and uses a material whose acoustic impedance is close to that of a living body. The stand-off 36 is also used in normal ultrasonic diagnosis. In the ultrasonic diagnosis, the stand-off 36 is interposed between the body surface of the subject and the probe 12. In the present embodiment, in order to use the standoff 36 as the sticking tool 14, an adhesive material is adopted as the material of the standoff 36 so that the standoff 36 itself functions as a double-sided adhesive tape. . The standoff 36 is adhered to the bottom surface of the probe 12 and the subject surface 15 so that the probe 12 is attached to the body surface of the subject.

  Of course, if the probe 12 can be attached to the body surface 15 of the subject 11, other members and configurations may be used as the attachment tool 14. For example, an adhesive tape may be attached from the upper side of the probe 12 and attached to the body surface. In this case, the adhesive tape becomes the sticking tool 14. Moreover, you may use the sticking tool 14 as shown to FIG. The sticking tool 14 includes a sticking metal fitting 38 that covers the probe 12 from above and an adhesive seal 42 that sticks the sticking metal fitting 38 to the body surface. The affixing metal fitting 38 is made of a hard material and has a box shape with an opening below the probe 12 so that the probe 12 can be accommodated. This sticking metal fitting 38 is formed slightly shallower than the thickness of the probe 12 on which the standoff 36 is set in consideration of deformation of the standoff 36, more specifically, a change in thickness. Moreover, the collar part 40 which spreads around from the bottom face is formed in the sticking metal fitting 38. FIG. The adhesive seal 42 has a surface area sufficiently larger than that of the sticking metal fitting 38, and an opening through which the box-shaped portion of the sticking metal fitting 38, in other words, the accommodating portion of the probe 12 pierces, in the center. 44 is formed. And with this adhesive seal 42, the sticking metal fitting 38, more precisely, the collar part 40 is stuck on the body surface. As a result, the probe 12 is attached to the subject body surface. At the time of this sticking, a force is applied from the upper side of the sticking metal fitting 38, and the standoff 36 is elastically deformed so that the height of the bottom face of the standoff 36 and the bottom face of the collar 40 coincide. This elastic deformation improves the adhesion between the probe 12 and the stand-off 36 and between the stand-off 36 and the body surface, thereby enabling ultrasonic diagnosis in a more suitable state.

  Next, the holder 16 that holds the position of the stuck probe 12 will be described. FIG. 6 is a perspective view of the holder 16, and FIG. 7 is an exploded perspective view of the holder 16. The holder 16 is roughly divided into a contact plate 18 that contacts the body surface around the position where the probe 12 is attached, and a belt member 20 that holds the contact plate 18. The contact plate 18 is a flat plate made of a hard material. The contact plate 18 has a substantially rectangular shape that is long in the axial direction of the bone. The reason for this shape is that the skin has the property of being more movable in the axial direction of the bone. That is, as will be described later, the contact plate 18 is provided for the purpose of limiting the movement of the skin around the probe. In order to achieve this object more reliably, the contact plate 18 has a shape that is long in the axial direction of the bone so that the movement of the skin is likely to occur, that is, the movement of the skin in the axial direction of the bone can be restricted. . It is desirable that the contact plate 18 has a long shape in a direction perpendicular to the bone axis. An opening 19 for exposing the body surface to the outside is provided at substantially the center of the contact plate 18. The probe 12 is stuck inside the opening 19. The opening 19 has a sufficiently larger area than the probe 12 and the sticking tool 14, and a gap is formed between the sticked probe 12 and the sticking tool 14. The abutting plate 18 is fixed to the back surface of the belt member 20, and is brought into contact with the body surface of the subject by the tightening force generated by winding the belt member 20 around the subject, and is held in that state.

  The belt member 20 functions as a holding member that holds the contact plate 18 in contact with the body surface. The belt member 20 includes a cover portion 46 that covers the contact plate 18 and a plurality of elastic bands 50 connected thereto. The cover part 46 is made of a material having flexibility that can be deformed according to the shape of the body surface of the subject, for example, cloth. The cover portion 46 is large enough to cover the entire contact plate 18. An opening 47 is formed at the center. The cover portion 46 is used by being wound around the subject, and a plurality of elastic bands 50 are fixed to one end in the winding direction. A female planar fastener 48 is provided at the other end, and is detachable from one end of an elastic band, which will be described later.

  The elastic band 50 is a band member made of a material having elasticity and flexibility, such as rubber. One end of the elastic band 50 is fixed to one end of the cover portion 46. In addition, a male planar fastener (not shown) is provided at the other end of the stretchable band 50 and is detachable at a desired position in the planar fastener 48 of the cover portion 46. Then, by using such a detachable structure with a planar fastener, the inner diameter of the belt member 20 can be freely adjusted, and the body surface shape of the subject can be flexibly handled. Of course, any means other than the surface fastener, for example, a plurality of hooks, may be used as long as the attachment position of the elastic band 50 can be varied.

  Further, by using a stretchable material as the stretchable band 50, a tightening force can be easily generated. In other words, the belt member 20 is used while being wound around the body surface of the subject. At this time, it is necessary to exhibit a tightening force that can prevent displacement. At this time, it is possible to generate a tightening force on the subject by expanding and contracting the stretchable band so that the peripheral length of the belt member 20 is slightly shorter than the peripheral length of the subject. This tightening force prevents the belt member 20 from being displaced, and the contact plate 18 contacts the body surface of the subject with a predetermined contact pressure.

  In addition, the form of the holder demonstrated here is an example, The shape and structure can be changed suitably. Specifically, if the contact plate 18 surrounds the attached probe 12 and can be contacted with a pressure that can limit the movement of the skin described below, its shape, material, etc. Is not limited to the above description. Therefore, for example, in the present embodiment, the contact plate 18 is configured by a single plate material, but may be configured by a plurality of plate materials. Further, the shape may be appropriately changed according to the site to be diagnosed. In the present embodiment, the material is a hard material, but a material having some elasticity may be used as long as it can be contacted with an appropriate pressure. However, in order to limit the movement of the skin, it is desirable that its elasticity is lower than that of the skin. Further, the belt member 20 may have another configuration as long as it can hold the contact plate 18 in contact with the body surface and does not hinder the movement of the subject. Therefore, it is not necessary to divide into the cover part 46 and the elastic band 50 like this embodiment, and you may comprise a belt member with the cloth of 1 elastic. In addition, the shape and the like can be appropriately changed according to the diagnostic site to which the shape is applied. Moreover, although it is suitable for at least one part of the belt member 20 to have a stretching property, depending on the case, it does not need to have a stretching property.

  Next, the effect | action of this holder 16 is demonstrated using FIG. FIG. 8 is a schematic cross-sectional view when the probe 12 is stuck in a state where there is no holder 16, that is, in a state where there is no body surface contact by the contact plate 18.

  As is well known, the body surface 15 of the subject is covered with skin 52. The skin 52 has moderate elasticity in order to follow the movement of muscles and the like. Therefore, when the movement of muscles or the like occurs, the skin 52 moves to follow this, and the relative positional relationship with the bone 54 located inside the subject fluctuates.

  As shown in FIG. 8, when the probe 12 is attached to the body surface 15 of the subject without the holder 16, the skin 52 immediately below the attachment position 62 is pressed. On the other hand, the surrounding skin 52 remains in a free state without any restriction. That is, the skin 52 around the sticking position 62 can be moved in accordance with the movement of muscles and the like, and if the peripheral skin 52 moves, naturally the skin 52 directly below the sticking position 62 and the skin. The probe 12 attached to 52 also moves. As a result, the relative positional relationship between the probe 12 and the bone 54 varies. Thus, when the relative positional relationship between the probe 12 and the bone 54 varies, the following problem occurs.

  As described above, when performing a fusion (bonding) diagnosis of the fractured bone 54, the probe 12 is attached to the body surface 15 of the subject, and a load is applied to the bone 54 in that state. The bone to which the load is applied is displaced according to the degree of fusion. Specifically, the amount of displacement increases when the degree of fusion is low, and conversely when the degree of fusion is high, the amount of displacement decreases. In order to detect the amount of displacement of the bone 54, when a load is applied to the bone 54, the ultrasonic wave 60 is transmitted to the tracking point 58 located on the surface of the bone 54 in the vicinity of the fracture position 56. The position of the tracking point 58 is detected based on the echo signal. Then, the inclination angle of the bone 54 by adding a load is acquired from the displacement amount of the tracking point 58, and the degree of bone fusion is diagnosed based on the inclination angle.

  Therefore, when performing a fusion diagnosis of the bone 54, it is important that the ultrasonic wave 60 transmitted from the probe 12 appropriately reaches the tracking point 58. In other words, in order to perform highly reliable ultrasonic diagnosis, it is necessary to maintain the relative positional relationship between the diagnosis target site (tracking point 58) and the probe 12. In particular, in the present embodiment, since the number of transducers is reduced with the miniaturization of the probe, the number of tracking points 58 is also limited. For this reason, since it is impossible to take a measure such as estimating an error by comparing with other measurement values, higher position accuracy is required. However, as described above, when the probe 12 is stuck without the holder 16, the relative position between the probe 12 and the bone 54 is shifted, and as a result, a reliable fusion diagnosis is difficult.

  On the other hand, FIG. 9 shows a schematic cross-sectional view when the probe 12 is attached in a state where the holder 16 of the present embodiment is present, that is, in a state where there is a body surface contact of the contact plate 18. In this case, the probe 12 is attached to the approximate center of the portion where the body surface 15 is exposed by the opening 19 of the contact plate 18. On the other hand, the contact plate 18 is pressed toward the inside of the subject when the belt member 20 is tightened, and comes into contact with the body surface 15 of the subject. Due to this contact, the skin 52 of the portion surrounded by the contact plate 18 is pulled. As a result, the elasticity of the skin is reduced and the movement of the skin 52 is restricted. The contact plate 18 surrounds the attached probe 12. In other words, the entire periphery of the probe 12 is pressed with a predetermined pressure. Therefore, the skin 52 around the sticking position 62 is not easily affected by the movement of the skin 52 outside the contact plate 18. As a result, even if the skin 52 outside the contact plate 18 moves following the movement of muscles or the like, the position of the skin 52 around the sticking position 62 is difficult to move. That is, the movement of the skin 52 around the attachment position 62 of the probe 12 is restricted by the body surface contact of the contact plate 18. As a result, even if muscles or the like move, the position of the probe 12 does not vary with respect to the bone 54, and the relative positional relationship with the tracking point 58 is maintained. Thus, accurate bone 54 diagnosis can be performed.

  As described above, according to this embodiment, ultrasonic diagnosis with higher reliability is possible. This is particularly effective when the scanning range of ultrasonic waves is narrow, or when minute positional accuracy is required. Further, in the present embodiment, the holder 16 is configured with a simple configuration of the contact plate 18 and the belt member 20. Therefore, it is possible to realize a simple, low-cost and highly reliable ultrasonic diagnosis.

  In the present embodiment, the case where it is used for bone fusion diagnosis has been described as an example. However, if it is required to maintain the relative positional relationship between the diagnosis target region and the probe 12, it is a matter of course that other ultrasonic diagnosis is performed. Also effective. In the present embodiment, the contact plate 18 has a flat plate shape. However, in order to improve the contact pressure, a protrusion projecting from the back surface of the contact plate 18, that is, the contact surface that contacts the body surface, is provided. It may be provided.

  For example, as shown in FIG. 10A, ribs 64 extending in the minor axis direction of the contact plate 18 may be provided on both sides of the opening 19. By providing the rib 64, the contact pressure on the body surface of the subject is improved, and the movement of the skin can be more reliably restricted. As a result, more reliable ultrasonic diagnosis is possible. Moreover, since the lower leg etc. are substantially cylindrical shapes, when the contact plate 18 is a flat plate, an appropriate contact pressure may not be obtained. In that case, as shown in FIG. 10B, it is also desirable to use a curved plate for the contact plate 18 in accordance with the shape of the peripheral region of the region to be diagnosed.

It is a block diagram which shows the structure of the ultrasonic diagnosing device which is embodiment of this invention. It is a figure which shows a mode that a bone fusion diagnosis is performed using this ultrasonic diagnostic apparatus. It is a perspective view of the probe and sticking tool in this embodiment. It is a perspective view which shows another sticking tool. It is a disassembled perspective view of the sticking tool of FIG. It is a perspective view of the holder in this embodiment. It is a disassembled perspective view of the sticking tool of FIG. It is a schematic sectional drawing of the probe periphery when not using a holder. It is a schematic sectional drawing of the probe periphery at the time of using a holder. It is a figure which shows an example of another contact plate.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Ultrasonic diagnostic apparatus, 11 Subject, 12 Probe, 14 Sticking tool, 15 Body surface, 16 Holder, 18 Contact plate, 20 Belt member, 22 Apparatus main body part, 24 Transmission / reception part, 26 Signal processing part, 28 Output processing unit, 30 operation unit, 32 control unit, 34 display, 36 stand-off, 52 skin, 54 bone, 56 fracture position, 58 tracking point, 60 ultrasound, 62 sticking position.

Claims (8)

An ultrasonic probe for transmitting an ultrasonic wave to a diagnostic part inside the subject and receiving an echo signal thereof;
An attaching means for attaching the ultrasonic probe to a body surface in the vicinity of the diagnostic site;
A contact plate that contacts the body surface around the attaching means and the ultrasonic probe, and presses the body surface;
A holding member for holding the contact plate in contact with the body surface;
An ultrasonic diagnostic apparatus comprising: The ultrasonic diagnostic apparatus according to claim 1,
The holding member is made of a material that can be deformed according to the shape of the body surface, and is a band member that is wound around the outer periphery of the subject with the contact plate sandwiched between the body surface and the holding member. An ultrasonic diagnostic apparatus characterized by the above. The ultrasonic diagnostic apparatus according to claim 2,
The ultrasonic diagnostic apparatus according to claim 1, wherein an inner diameter of the holding member can be adjusted according to an outer peripheral length of the subject. The ultrasonic diagnostic apparatus according to claim 2, wherein
The ultrasonic diagnostic apparatus according to claim 1, wherein the holding member includes at least a stretchable portion made of a material that is stretchable in a circumferential direction of the subject. The ultrasonic diagnostic apparatus according to any one of claims 1 to 4, wherein
The ultrasonic diagnostic apparatus according to claim 1, wherein the contact plate is a plate member having an opening surrounding the ultrasonic probe and the sticking tool with a predetermined gap. The ultrasonic diagnostic apparatus according to any one of claims 1 to 5,
The ultrasonic diagnostic apparatus according to claim 1, wherein the contact plate is provided with a convex portion protruding in an inner direction of the body surface on a contact surface contacting the body surface. The ultrasonic diagnostic apparatus according to any one of claims 1 to 6,
The sticking means is
A container for accommodating the ultrasonic probe in a state in which an ultrasonic transmission / reception surface is exposed;
An eaves member extending outward from the lower end of the container;
An adhesive member for attaching the heel member to the body surface;
An ultrasonic diagnostic apparatus comprising: A holding device that holds an attachment position of an ultrasonic probe to be attached to the body surface of a subject,
A contact plate that contacts the body surface around the ultrasonic probe attached to the body surface of the subject and presses the body surface;
A holding member for holding the contact plate in contact with the body surface;
A holding device comprising:

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