JP5513826B2 - Puncture adapter and ultrasonic diagnostic apparatus - Google Patents

Description

  The present invention relates to a puncture adapter that is attached to an ultrasonic probe and guides a puncture needle, and an ultrasonic diagnostic apparatus equipped with the puncture adapter.

  Conventionally, a puncture needle such as an injection needle is inserted into a living body to collect a tissue such as a tumor, and a thermal treatment by local administration of a drug or microwave or radio wave irradiation from the puncture needle is performed. A puncture is performed. Such puncture is generally performed by ultrasonic diagnosis in order to avoid blood vessels that may cause major bleeding due to damage or to reliably puncture a target tissue such as a tumor. This is performed with reference to an ultrasonic tomogram generated by the apparatus.

  A conventional ultrasonic diagnostic apparatus includes an ultrasonic diagnostic apparatus main body, an ultrasonic probe, and a transmission cable that electrically connects the ultrasonic diagnostic apparatus main body and the ultrasonic probe. In order to perform puncture with certainty, a puncture adapter is attached to the ultrasonic probe and used to support and guide the puncture needle. That is, while referring to the ultrasonic tomographic image, the puncture needle for examination or treatment is guided so as to surely puncture the affected part shown in the ultrasonic tomographic image (see, for example, Patent Document 1).

  Although it is necessary to change the insertion direction of the puncture needle depending on the position of the affected part, there is a puncture adapter that slides a member that guides the puncture needle as described in Patent Document 1.

  In puncture, puncture needles having different diameters are used depending on the application. Therefore, a puncture adapter must be prepared for each diameter of the puncture needle. For example, when a puncture needle with a different diameter is used during surgery, the puncture adapter attached to the ultrasonic probe must be replaced with one that matches the diameter of the puncture needle to be used next.

  Therefore, there are some which are adapted to puncture needles of different diameters by guiding the puncture needle between two members and making the distance between the two members adjustable. FIG. 10 is a diagram showing a configuration of a conventional puncture adapter. FIG. 10A is a front view, and FIG. 10B is a right side view. As shown in FIGS. 10A and 10B, in the conventional puncture adapter, the first guide member 1 is a groove-shaped member. The second guide member 2 is a convex member. One end of the first guide member 1 and the second guide member 2 is fixed so as to be rotatable about the rotary component 5 as a rotation center. The first guide member 1 and the second guide member 2 support and guide the needle 6 by narrowing the interval. And between the 1st guide member 1 and the 2nd guide member 2, the coil spring 4 which generate | occur | produces the rotational force which acts in the direction which narrows the space | interval of the 1st guide member 1 and the 2nd guide member 2 is arrange | positioned. . In order to support the coil spring 4, a rotating component 5 is disposed inside the winding portion of the coil spring. Further, the first guide member 1 is fixed with a needle release lever 3 for applying a force for opening the distance between the first guide member 1 and the second guide member 2 against the rotational force of the coil spring 4.

  The operator applies a force against the needle release lever 3 against the rotational force of the coil spring 4 to increase the distance between the first guide member 1 and the second guide member 2. Thus, by widening the distance between the first guide member 1 and the second guide member 2, the needle 6 sandwiched between the first guide member 1 and the second guide member 2 is opened by the force of the coil spring 4. .

  The total length of the first guide member 1 that guides the groove-shaped needle 6 and the total length of the portion that guides the convex-shaped protruding needle 6 of the second guide member 2 may be configured in a range of about 25 mm to 35 mm. Many.

  The operator operates the ultrasonic probe equipped with the puncture adapter while the needle 6 is held between the first guide member 1 and the second guide member 2 by the force of the coil spring 4. At this time, the operator may perform an operation of moving the ultrasonic probe in a direction other than the traveling direction of the needle 6 in order to adjust the traveling direction of the needle 6. When such an operation of moving the ultrasonic probe is performed, a force acts on the needle 6 in a direction perpendicular to the center line. When such a force is applied, the force acts so as to widen the distance between the first guide member 1 and the second guide member 2, and the needle 6 comes off between the first guide member 1 and the second guide member 2. There is a risk that.

  Therefore, in order to prevent the needle 6 from coming off between the first guide member 1 and the second guide member 2 in the conventional puncture adapter, the needle between the first guide member 1 and the second guide member 2 is clamped. It has been practiced to configure the portions with planes substantially parallel to each other.

  In addition, a technique for displaying a guideline indicating the advancing direction of a puncture needle on an ultrasonic diagnostic image is proposed for an ultrasonic apparatus using a puncture adapter (for example, see Patent Document 2).

JP 2001-120553 A JP 2007-195867 A

  In such a puncture adapter, a needle having a minimum necessary length is preferred by the operator for reasons of good operability and high safety. In order to guide a needle having a short length, the length of the portion of the puncture adapter that guides the needle, that is, the length of the portion that guides the needle in the first guide member 1 and the second guide member 2 described above. Need to be configured short.

  Here, as described above, a force in a direction perpendicular to the center line of the needle may act on the needle during puncturing. In particular, as described above, when the length of the guide member of the needle is configured to be short, a force that increases the distance between the first guide member 1 and the second guide member 2 is easily applied by the force acting on the needle, and the needle is in the first position. This is dangerous because the guide member 1 and the second guide member 2 are easily detached. Here, the puncture adapter described in Patent Document 1 has a mechanism for holding the puncture needle at an appropriate position, and the ultrasonic probe described in Patent Document 2 displays a direction in which the puncture needle is guided. In either case, it is difficult to prevent the needle from being detached from the member that guides the needle.

  Further, when the length of the portion for guiding the needle in the first guide member 1 and the second guide member 2 is configured to be short, the first guide member 1 and the second guide member 2 themselves and It is desirable to make the size of the member in the vicinity small. However, when the size of the coil spring 4 described above, which is a member disposed in the vicinity of the first guide member 1 and the second guide member 2, is reduced, it is difficult to obtain the torque and rotation angle required for the coil spring 4. This also causes the needle to easily come off.

  In recent years, the ultrasonic probe has been miniaturized. However, if the ultrasonic probe is miniaturized, the ultrasonic probe cannot be used as a fulcrum when the needle release lever is operated. It becomes difficult to transmit operating force. This makes it difficult to release the needle from the puncture adapter. Further, when the torque by the coil spring is increased, the force for fitting the first guide member and the second guide member is increased, so that the first guide member and the second guide member are separated to release the needle. Need more power. Therefore, it is necessary to increase the torque by the coil spring and to accurately transmit a large force to the member for releasing the needle.

  The present invention has been made in view of such circumstances, and even when a short needle is used, the needle is unlikely to be detached from the guide member during operation, the coil spring is small, and the ultrasonic probe is further miniaturized. Another object of the present invention is to provide a puncture adapter capable of easily releasing a needle and an ultrasonic diagnostic apparatus equipped with the puncture adapter.

In order to achieve the above object, a puncture adapter according to claim 1 is provided with an attachment mechanism for attaching to an ultrasonic probe for transmitting and receiving ultrasonic waves, and a groove portion fixed to the attachment mechanism and having a substantially V-shaped cross section. has a first guide member having said has a convex portion for the groove and the fitting, and a second guide member prior Kitotsu portion is an engagement or disengagement across the puncture needle into the groove, the front Stories A puncture adapter for inserting and moving the puncture needle from one end to the other end in the extending direction of the groove portion in a state where the groove portion and the convex portion are fitted, and the V-shape of the first guide member groove, inlet grooves, intermediate the grooves are divided into plural parts arrangement including a groove outlet, the inlet grooves and openings the inner wall surface of the outlet grooves of the groove of the V-shaped, the groove portion extending in the direction and the plane including the depth direction of the groove portion is formed, Constitutes a planar area of the pair facing you are, it is characterized in.

The ultrasonic diagnostic apparatus according to claim 6 , an ultrasonic probe, a puncture adapter attached to the ultrasonic probe, transmission / reception means for transmitting / receiving ultrasonic waves via the ultrasonic probe, and the received ultrasonic wave An ultrasonic diagnostic apparatus comprising: an image generating unit that generates an ultrasonic tomogram based on sound waves; and a display control unit that displays the ultrasonic tomographic image on a display unit, wherein the puncture adapter includes an ultrasonic A mounting mechanism for mounting to an ultrasonic probe for transmitting and receiving, a first guide member fixed to the mounting mechanism and having a groove portion having a substantially V-shaped cross section, and a convex portion for fitting with the groove portion , and a second guide member Kitotsu portion is an engagement or disengagement across the puncture needle into the groove, and before Symbol state in which fitting the groove and the convex portion, the direction of extending of the groove Insert the puncture needle from one end to the other A puncture adapter for movement, the groove of the V-shape of the first guide member, the inlet groove, intermediate groove are distributed in a plurality including a groove outlet, of the groove of the V-shaped wherein the opening inner wall surface of the inlet grooves and outlet grooves, the grooves are plane formed including the depth direction of the direction and the groove portion extending constitute the planar area of the opposed pair each other, that It is what.

The puncture adapter according to claim 1 and the puncture adapter mounted on the ultrasonic diagnostic apparatus according to claim 6 are provided at both ends of the insertion guide of the puncture needle in the substantially V-shaped groove of the first guide member. And it is the structure provided with the plane area | region in the V-shaped opening part. As a result, even when a force perpendicular to the advancing direction is applied to the puncture needle by an operation or the like and the interval between the first guide member and the second guide member is expanded, the expanded interval is less than or equal to a predetermined length. Since the planar region of the opening of the first guide member and the second groove is kept in contact with each other and no gap is formed, it is possible to prevent the puncture needle from coming off. As a result, the puncture needle is prevented from being detached from the guide member during the operation of the ultrasonic probe equipped with the puncture adapter, and the safety in ultrasonic diagnosis using the puncture adapter can be improved.

The figure which shows the structure of the puncture adapter which concerns on 1st Embodiment, (A) The left view of a puncture adapter, (B) The top view of a puncture adapter, (C) The right view of a puncture adapter, (D) Right perspective view The figure which shows the structure of the 1st guide member which concerns on 1st Embodiment, (A) The front view which looked at the 1st guide member in the depth direction of the groove | channel, (B) The perspective view of a 1st guide member, (C) Schematic sectional view of the first guide member Front view seen from the protruding direction of the convex shape of the second guide member (A) The perspective view which showed the state of the puncture adapter which the 1st guide member and the 2nd guide member are open | released, (B) The partial enlarged perspective view of the 1st guide member of (A), and a 2nd guide member (A) The perspective view which showed the state of the puncture adapter with which the 1st guide member and the 2nd guide member were fitted, (B) The partial enlarged perspective view of the 1st guide member and the 2nd guide member of (A) (A) Schematic fitting cross-sectional view of the state where the puncture needle is sandwiched between the groove and the guide convex portion, (B) Schematic cross-sectional view for explaining the state where the puncture needle is displaced The figure explaining operation at the time of release of a puncture needle by an operator The block diagram showing the function of the ultrasonic diagnostic equipment concerning the present invention (A) (B) (C) (D) The figure for demonstrating the example of a puncture guideline The figure which shows the structure of the conventional puncture adapter, (A) Front view, (B) Right view

[First Embodiment]
Hereinafter, a puncture adapter and an ultrasonic diagnostic apparatus including the puncture adapter according to the first embodiment of the present invention will be described. In the following description, the configuration of the puncture adapter will be described first, and then the ultrasonic diagnostic apparatus including the puncture adapter will be described.

(Puncture adapter)
FIG. 1 is a diagram showing a configuration of a puncture adapter 100 according to the present embodiment. FIG. 1A is a left side view of puncture adapter 100. FIG. 1B is a plan view of puncture adapter 100. FIG. 1C is a right side view of puncture adapter 100. FIG. 1D is a right perspective view of puncture adapter 100.

  The puncture adapter 100 according to the present embodiment has a mounting member 006 for mounting on an ultrasonic probe 310 (see FIG. 8) described later. The mounting member 006 is a member in which a quadrangle is formed by the rod-shaped member shown in FIG. The mounting member 006 is composed of an upper member 061 and a lower member 062 that are upper and lower members on the paper surface in FIG. One end of the upper member 061 and one end of the lower member 062 are rotatably connected by a rotating member 064. Further, the other end of the upper member 061 and the other end of the lower member 062 are provided with a connection member 063 such as a screwing mechanism. For example, in this embodiment, as the connecting member 063, a male screw having a rotation knob is rotatably disposed at the other end of the upper member 061, and the other end of the lower member 062 is of a size that meshes with the male screw of the upper member 061. A female screw is fixed and arranged. Then, the connection between the other end of the upper member 061 and the other end of the lower member 062 is released by opening the connection with the connection member 063. Thereby, the upper member 061 and the lower member 062 are relatively rotated around the rotating member 064. With the connection member 063 opened, the upper member 061 and the lower member 062 are rotated, the ultrasonic probe 310 is sandwiched between the upper member 061 and the lower member 062, and the other end of the upper member 061 and the lower member 062 are The puncture adapter 100 is attached to the ultrasonic probe 310 by closing the other end and fixing with the connecting member 063. This mounting member 006 corresponds to the “attachment mechanism” in the present invention.

  The first guide member 001 is fixed to the mounting member 006. In the present embodiment, the first guide member 001 is fixed to the upper member 061 of the mounting member 006.

  Next, the structure of the first guide member 001 and the second guide member 002 will be described with reference to FIG. 2, FIG. 3, and FIG.

  FIG. 2 is a view showing the structure of the first guide member 001 according to the present embodiment. FIG. 2A is a front view of the first guide member 001 viewed in the depth direction of the groove. FIG. 2B is a perspective view of the first guide member. FIG. 2C is a schematic cross-sectional view of the first guide member. FIG. 2C is a cross-sectional view taken along a dashed line in FIG. 2A. In other words, any CC cross section in FIG. 2A is the cross section shown in FIG. FIG. 3 is a front view of the second guide member 002 as viewed from the protruding direction of the guide convex portion 021. FIG. 4A is a perspective view showing a state of the puncture adapter in which the first guide member and the second guide member are fitted, and FIG. 4B is the first guide member and the second guide of FIG. It is a partial expansion perspective view of a member. However, FIG. 4B illustrates the puncture needle 200 so that the state in which the puncture needle 200 is sandwiched can be easily understood.

  More specifically, FIG. 2 (A) is a view of the first guide member 001 viewed from the direction of arrow X in FIG. 4 (B). FIG. 3 is a view of the second guide member 002 viewed from the direction of the arrow Y in FIG.

  The first guide member 001 has a substantially V-shaped cross section, and guides the puncture needle 200 (see FIG. 2B) with two planes (slopes) of the groove portion 012 having a substantially V-shaped cross section. The dotted line arrow in FIG. 2B represents the movement of setting the puncture needle 200 to the first guide member 001. Furthermore, in this embodiment, the length of the groove part 012 is 4 mm to 20 mm. The groove portion 012 has a substantially V-shaped cross section in a direction orthogonal to the traveling direction as shown in FIG.

  The groove 012 is divided by a groove 013a and a groove 013b, which will be described later, and is divided into three parts, an inlet groove 012a, an intermediate groove 012b, and an outlet groove 012c shown in FIG.

  Further, the groove portion 012 is at least a predetermined range of both end portions in the advancing direction of the puncture needle 200 (direction in which the groove portion 012 extends) (in other words, near the entrance and exit of the puncture needle 200 when guiding the puncture needle 200) The opening (the V-shaped end portion on the second guide member 002 side) has a substantially parallel plane region facing each other. In the present embodiment, the V-shaped opening on the second guide member 002 side of the inlet groove 012a has a flat area 011a, and the flat area on the V-shaped opening on the second guide member 002 side of the outlet groove 012c. 011b. The V-shaped opening on the second guide member 002 side of the inlet groove 012a corresponds to the “opening on the one end side of the V-shaped groove”, and the V-shaped opening on the second guide member 002 side of the outlet groove 012c. The opening corresponds to “the opening on the other end side of the V-shaped groove”. Hereinafter, the planar region 011a and the planar region 011b may be collectively referred to as a planar region 011. The plane region 011 is a plane that includes the advancing direction of the puncture needle 200 and further includes the depth direction of the groove portion 012. The depth direction of the groove part 012 is the distance between the first guide member 001 and the second guide member 002 from the state in which the groove part 012 of the first guide member 001 and the guide convex part 021 of the second guide member 002 are fitted. This is a tangential direction in which the guide convex portion 021 moves away from the groove portion 012 when opening (separating).

  The intermediate groove 012b is not provided with a flat area similar to the flat area 011 provided in the inlet groove 012a and the outlet groove 012c, and the intermediate groove 012b has a flat surface in the inlet groove 012a and the outlet groove 012c. Grooves having the same shape as the V-shape up to the region 011 are provided. That is, the intermediate groove portion 012b is configured to have a shorter height from the V-shaped bottom portion (the deepest portion) of the groove portion 012 than the inlet groove portion 012a and the outlet groove portion 012c by the plane region 011.

  Further, the first guide member 001 is provided with two grooves 013a and 013b in a direction orthogonal to the extending direction of the groove part 012, that is, in a direction orthogonal to the advancing direction of the puncture needle 200. The groove 013a and the groove 013b are grooves that fit into convex portions 022a and 022b of the second guide member 002 described later. The convex part 022a and the convex part 022b are configured to make it difficult for the puncture needle 200 to come off when the puncture needle 200 is sandwiched and supported by the first guide member 001 and the second guide member 002. It will be described later. The groove 013a and the groove 013b correspond to “orthogonal grooves” in the present invention.

  The second guide member 002 has a guide convex portion 021 extending in the advancing direction of the puncture needle 200 that fits into the V-shape of the groove portion 012 of the first guide member 001. Then, the guide groove part 012 of the first guide member 001 and the guide convex part 021 of the second guide member 002 are fitted with the puncture needle 200 interposed therebetween, thereby holding the puncture needle 200. The leading convex shape extending from top to bottom on the paper surface in FIG. 3 is the above-described guide convex portion 021.

  The guide convex part 021 of the second guide member 002 is the same as the extension of the groove part 012 when fitted to press the puncture needle 200 against two V-shaped planes of the groove part 012 of the first guide member 001. It has a convex shape extending in the direction (advancing direction of the puncture needle 200).

  The guide convex portion 021 is disposed so as to be fitted into the groove portion 012 of the first guide member 001 when the second guide member 002 is fitted into the first guide member 001. Further, in the present embodiment, the guide convex portion 021 has a length of 4 mm to 20 mm. Then, the apex of the guide convex portion 021, that is, the tip portion on the first guide member 001 side, presses the puncture needle 200 against two V-shaped planes of the groove portion 012 of the first guide member 001 when fitted. It is composed of a plane.

  Further, in the present embodiment, the second guide member 002 has a convex portion 022a and a convex portion 022b that are convex shapes extending in a direction orthogonal to the direction in which the guiding convex portion 021 extends. Hereinafter, the convex part 022a and the convex part 022b may be collectively referred to as a convex part 022. The convex portions 022a and the convex portions 022b correspond to “orthogonal convex portions” in the present invention.

  The second guide member 002 is rotatably provided so as to be fitted to the first guide member 001. In the present embodiment, the second guide member 002 rotates around the rotation shaft 003. Here, since the first guide member 001 is fixed to the mounting member 006 as described above, the rotation shaft 003 for rotating the second guide member 002 so as to fit the first guide member 001 is The guide member 001 may be provided or the mounting member 006 may be provided. That is, it can be said that the rotating shaft 003 is fixed with respect to the first guide member 001 regardless of whether it is provided on the first guide member 001 or the mounting member 006.

  Here, with reference to FIG.4 and FIG.5, the outline | summary of the fitting state of the 1st guide member 001 and the 2nd guide member 002 is demonstrated. An alternate long and short dash line in FIG. 4B indicates a direction in which the puncture needle 200 is sandwiched between the first guide member 001 and the second guide member 002. FIG. 5A is a perspective view showing a state of the puncture adapter 100 in which the first guide member 001 and the second guide member 002 are fitted. FIG. 5B is a partially enlarged perspective view of the first guide member 001 and the second guide member 002 of FIG. The first guide member 001 and the second guide member 002 approach from the state shown in FIG. 4, and finally the first guide member 001 and the second guide member are fitted as shown in FIG. In FIG. 5, the groove part 012 of the first guide member 001 and the guide convex part 021 of the second guide member 002 shown in FIG.

  The convex part 022a is arranged so as to be fitted into the groove 013a of the first guide member 001 when the guiding convex part 021 of the second guide member 002 is fitted into the groove part 012 of the first guide member 001. . Further, the convex part 022b is arranged so as to be fitted into the groove 013b of the first guide member 001 when the guiding convex part 021 of the second guide member 002 is fitted into the groove part 012 of the first guide member 001. ing.

  The normal line of the planar surface of the guide convex portion 021 of the second guide member 002 indicates the distance between the first guide member 001 and the second guide member 002 from the state where the first guide member 001 and the second guide member 002 are fitted. When opening (removing), the second guide member 002 coincides with the tangential direction in the direction away from the first guide member 001. When the first guide member 001 and the second guide member 002 are fitted with the puncture needle 200 interposed therebetween, the puncture needle 200 is pressed against the two V-shaped flat surfaces of the groove portion 012 by the second guide member 002. And this groove part 012 guides the pinched puncture needle 200 to the direction where the groove | channel extends in the state which fitted the 1st guide member 001 and the 2nd guide member 002 on both sides of the puncture needle 200. This guide corresponds to the insertion movement. Then, guiding the puncture needle 200 from the end portion of the upper groove portion 012 on the paper surface of FIG. 2A toward the end portion of the lower groove portion 012 on the paper surface may be “from one end in the extending direction of the groove portion. This is equivalent to “insertion movement of the puncture needle toward the end”. Since the groove section 012 has a V-shaped cross section, the puncture needle 200 is placed on the first guide member 001, and the puncture needle 200 is directed toward the two V-shaped planes of the groove section 012 by the second guide member 002. When a force is applied to the puncture needle 200, the puncture needle 200 slides on the V-shaped side surface of the groove portion 012 and reaches a position in contact with both of the two planes to be supported.

  In the state where the first guide member 001 and the second guide member 002 are fitted with the puncture needle 200 sandwiched therebetween, the puncture needle 200 and the V-shaped two planes of the groove portion 012 and a guide for use as shown in FIG. It is sandwiched between the top surfaces of the convex portions 021. Here, FIG. 6A is a schematic cross-sectional view of a fitting state in which a needle between the groove portion 012 and the guide convex portion 021 is sandwiched. The puncture needle 200 is moved back and forth in the traveling direction (that is, the direction along the groove of the groove portion 012) while being sandwiched between the two V-shaped flat surfaces of the groove portion 012 and the flat surface of the apex of the convex portion for guiding 021. Moved.

  By providing the convex portion 022a and the convex portion 022b, when the interval between the first guide member 001 and the second guide member 002 is reduced with the puncture needle 200 interposed therebetween, the puncture needle 200 is moved to the second guide member 002. Since the puncture needle 200 is pushed by the convex portion 022a and the convex portion 022b even when it deviates laterally from the plane position of the apex of the guide convex portion 021, the puncture needle 200 slides on the slope side of the guiding convex portion 021. There is nothing.

  The puncture needle 200 is movable in the advancing direction (direction in which the groove portion 012 extends) while being sandwiched between the two V-shaped flat surfaces of the groove portion 012 and the flat surface of the apex of the guide convex portion 021. The puncture needle 200 is sandwiched between the two V-shaped planes of the groove 012 and the plane of the apex of the guide convex part 021, so that a predetermined force or more is not applied in the direction orthogonal to the traveling direction. Thus, the movement in the direction other than the traveling direction is suppressed, and it is possible to move only in the traveling direction.

  Here, as described above, the groove portion 012 and the guide convex portion 021 according to the present embodiment have a total length of 4 mm to 20 mm. In this way, a short needle with good operability and high safety can be provided by shortening the overall length, which is normally about 25 mm to 35 mm. In this way, when the entire length of the guide groove and the convex portion is configured to be short, the puncture needle 200 exerts a strong force to open the gap between the guide groove and the convex portion that sandwich the puncture needle 200. This is because, when a force is applied to the puncture needle 200 using one part of the entrance or exit of the puncture needle of the groove part 012 as a fulcrum and the other part as a force point, the distance from the entrance part to the exit part is short. This is because a large force is applied as compared with the case where is long.

  Therefore, the first guide member 001 and the second guide member 002 are fitted, and the puncture needle 200 is sandwiched between the two V-shaped flat surfaces of the groove portion 012 and the flat surface of the apex of the guide convex portion 021 In the state shown in FIG. 6A, a force of a predetermined level or more is applied to the puncture needle 200 in a direction orthogonal to the advancing direction of the puncture needle 200, that is, in the direction indicated by the pressing force N1 shown in FIG. The movement in the case of the case will be described. Here, the case where the force is applied in the direction orthogonal to the traveling direction is not only the case where the force is applied only in the direction orthogonal to the traveling direction, but the force is applied in the direction perpendicular to the force by applying the force in the intersecting direction of the traveling direction. Including the case where is added. In addition, when force is actually applied in a direction perpendicular to the advancing direction of the puncture needle 200, when the operator inserts the puncture needle 200 into the subject P, the puncture needle 200 is in a desired direction. By changing the course or inserting the ultrasonic probe 310 to insert the puncture needle, a force other than the traveling direction may be applied to the puncture needle 200. In such a case, the above-described force is generated. It will be.

  When a predetermined force or more is applied to the puncture needle 200 in a direction orthogonal to the traveling direction, a force against the force applied by the coil spring 007 (pressing force N1 shown in FIG. 6A) acts. The puncture needle 200 is pressed against the slope of the groove part 012 by the force applied to the puncture needle 200, and the puncture needle 200 starts to move along the slope of the groove part 012. When the puncture needle 200 moves along the slope of the groove portion 012 in this way, the puncture needle 200 pushes the guide convex portion 021 and the convex portion 022 of the second guide member 002 in the direction away from the first guide member 001. Work. A gap is formed between the first guide member 001 and the second guide member 002 by the force with which the puncture needle 200 pushes the guide convex part 021 and the convex part 022. That is, the predetermined force described above is that the puncture needle 200 presses the guide convex portion 021, the convex portion 022 a, the convex portion 022 b, or the like with respect to the puncture needle 200, and the first guide member 001 of the coil spring 007 This is the force that creates a gap between the first guide member 001 and the second guide member 002 against the force of fitting the second guide member 002.

  Further, the puncture needle 200 moves along the inclined surface of the groove portion 012 while increasing the interval between the first guide member 001 and the second guide member 002. When a larger force is applied to the entrance groove portion 012a side of the puncture needle 200, the flat region 011a of the entrance groove portion 012a is reached. When a larger force is applied to the exit groove 012c side of the puncture needle 200, the flat region 011b of the exit groove 012c is reached. In addition, when a force is applied substantially evenly from the entrance groove portion 012a side to the exit groove portion 012c side of the puncture needle 200, the puncture needle 200 is applied to the planar region 011a of the entrance groove portion 012a and the planar region 011b of the exit groove portion 012c. Reach. At this time, as shown in FIG. 6B, the puncture needle 200 is in contact with one or both of the planar region 011a and the planar region 001b. FIG. 6B is a schematic cross-sectional view for explaining a state where the puncture needle is displaced. Therefore, of the force applied to puncture needle 200, the force in the direction away from groove 012 in the normal direction of planar region 011 (pressing force N2 shown in FIG. 6B) is pushed back by planar region 011. Therefore, the movement in the direction away from the groove portion 012 in the normal direction of the planar region 011 of the puncture needle 200 is suppressed. At this time, the force applied to the puncture needle 200 to increase the distance between the first guide member 001 and the second guide member 002 is the force in the direction from the groove portion 012 toward the second guide member 002 (V in the cross section of the groove portion 012). Only the force in the direction toward the second guide member 002 in the normal direction of the character-shaped bottom, that is, the pressing force N3 shown in FIG. If the force (pressing force N3) in the direction from the groove portion 012 toward the second guide member 002 is smaller than the force with which the coil spring 007 is fitted, the distance between the first guide member 001 and the second guide member 002 is more than that. Does not spread. Therefore, in the state where the puncture needle 200 is in contact with the planar region 011, the distance between the first guide member 001 and the second guide member 002 does not increase unless a greater force in a direction other than the traveling direction acts on the puncture needle 200. . Therefore, an increase in the interval between the first guide member 001 and the second guide member 002 is suppressed in a state where the puncture needle 200 is in contact with the planar region 011. In this state, the guide convex portion 021 of the second guide member 002 and the planar region 011 are substantially in contact with each other, and no gap is formed in which the puncture needle 200 is removed. Thereby, the pinching of the puncture needle 200 by the first guide member 001 and the second guide member 002 can be maintained.

  The rotating shaft 003 is a rod-shaped member that passes through a hole formed in the first guide member 001 and a hole formed in the second guide member 002. The rotation shaft 003 is fixed so as not to be removed from the respective holes of the first guide member 001 and the second guide member 002.

  A coil spring 007 is disposed between the first guide member 001 and the second guide member 002. A shaft serving as a fulcrum on which the force of the coil spring 007 is applied is a fulcrum shaft 008. The fulcrum shaft 008 coincides with the winding portion of the coil spring 007. The coil spring 007 pushes the first guide member 001 and the second guide member 002 by the opening force of the coil with the fulcrum shaft 008 as a fulcrum, and narrows the distance between the first guide member 001 and the second guide member 002. Generates an acting rotational force. This coil spring 007 corresponds to the “elastic member” in the present invention.

  The fulcrum shaft 008 is disposed at a position farther from the fitting portion than the rotation shaft 003. Here, the fitting portion refers to a position where the groove portion 012 of the first guide member 001 and the guide convex portion 021 of the second guide member 002 are fitted, and so on. In this embodiment, the distance from the force point of the coil spring 007 to the first guide member 001 and the second guide member 002 to the rotation shaft 003 is the distance from the force point of the coil spring 007 to the first guide member 001 and the second guide member 002 to the fulcrum shaft. It is arranged to be approximately twice the distance up to 008. When springs having the same strength are used, it is possible to apply almost double force to the first guide member 001 and the second guide member 002 as compared with the case where the fulcrum shaft 008 and the rotation shaft 003 are matched. That is, as the fulcrum shaft 008 is separated from the rotation shaft 003, a larger torque can be applied to the first guide member 001 and the second guide member 002 from the coil spring 007. When the fulcrum shaft 008 is disposed near or at the same location as the rotation shaft 003, a coil spring 007 that generates a strong torque is required, and the coil spring 007 becomes large. When the puncture adapter 100 is downsized, the coil spring 007 part protrudes, and the subject may be damaged by the protruding part of the coil spring 007. Therefore, it is preferable to arrange the fulcrum shaft 008 at a position farther from the fitting portion than the rotation shaft 003. In consideration of the size of the coil spring 007, the distance from the force point of the coil spring 007 to the first guide member 001 and the second guide member 002 to the fulcrum shaft 008 is equal to the first guide member 001 of the coil spring 007 and the second guide member 001. More preferably, the guide member 002 is arranged away from a position that is approximately half the distance from the power point to the rotation shaft 003.

  Here, in this embodiment, a coil spring 007 is used as an elastic member for applying a force in a direction in which the first guide member 001 and the second guide member 002 are fitted, and this is utilized. These materials may be used. For example, a coil spring may be arranged between the first guide member 001 and the second guide member 002 so as to sandwich the direction in which the spring expands and contracts, and the coil spring may be configured to make use of the extending force. Such a material may be used.

  The second guide member 002 is provided with a release lever member 004. The release lever member 004 is a plate-like member and is provided so as to extend from the second guide member toward the opposite side of the fitting portion with respect to the rotation shaft 003.

  The release lever facing member 005 is disposed at a substantially opposite position on the opposite side of the release lever member 004 with the coil spring 007 interposed therebetween. The release lever facing member 005 is fixed to either the first guide member 001 or the mounting member 006. As described above, since the first guide member 001 is fixed to the mounting member 006, if the release lever facing member 005 is fixed to either the first guide member 001 or the mounting member 006, the second guide It is fixed with respect to the rotation of the member 002. The release lever facing member 005 is a plate-like member, and extends from the portion fixed to the first guide member 001 or the mounting member 006 toward the opposite side of the fitting portion with respect to the rotation shaft 003.

  FIG. 7 is a diagram illustrating an operation when the puncture needle 200 is released by the operator. The dotted line in FIG. 7 indicates the operator's hand. As shown in FIG. 7, the operator places his / her hand so that the release lever member 004 and the release lever facing member 005 are sandwiched between fingers. The operator applies a force in the direction of arrow S to the release lever member 004 and applies a force in the direction of arrow S ′ to the release lever facing member 005, so that the release lever member 004 and the release lever facing member 005 On the other hand, a force is applied so as to narrow the distance between the release lever member 004 and the release lever facing member 005. Due to the force applied to the release lever member 004 and the release lever facing member 005, the coil spring 007 is contracted against the opening force of the coil. Then, the distance between the release lever member 004 and the release lever facing member 005 is narrowed by the force applied to the release lever member 004 and the release lever facing member 005, so that the release lever member with respect to the rotating shaft 003 is released. 004 and the part opposite to the release lever facing member 005, that is, the interval between the fitting portions of the first guide member 001 and the second guide member 002 is widened, so that the second guide member 002 and the first guide member 001 The sandwiched puncture needle 200 can be detached.

  Here, in the present embodiment, a plate-like release lever member 004 and a release lever facing member 005 are provided as a preferable form for surely applying a force to open the gap to the first guide member 001 and the second guide member 002. However, this may be any other shape as long as it does not interfere with the operation of the ultrasonic probe 310 and can reliably apply a force for spacing the first guide member 001 and the second guide member 002. For example, the release lever member 004 and the release lever facing member 005 may be rod-shaped. The release lever member 004 and the release lever facing member correspond to the “release member” in the present invention.

  The puncture adapter 100 according to the present embodiment is configured such that the coil spring 007 is disposed on the opposite side of the fitting portion with respect to the rotation shaft 003 that is the rotation axis of the second guide member 002 relative to the first guide member 001. Thereby, the force points of the first guide member 001 and the second guide member 002 by the coil spring 007 can be separated from the rotation shaft 003, and the coil spring 007 is compared with the case where the rotation shaft 003 is a fulcrum of the coil spring 007. Thus, it is possible to apply a large torque to the first guide member 001 and the second guide member 002 in the direction to be fitted during rotation. Therefore, when applying a force of a required magnitude, the coil spring 007 can be a spring having a weak elastic force, and the coil spring 007 can be downsized.

  Furthermore, the puncture adapter according to the present embodiment is fitted to the first guide member 001 and the second guide member 002 at substantially opposite positions of the second guide member 002 and the first guide member 001 or the mounting member 006, respectively. It is the structure which provided the member which applies the force for opening a space | interval from a state. As a result, even when the ultrasonic probe 310 is downsized, the force for opening the space between the first guide member 001 and the second guide member 002 can be reliably transmitted to each member, and puncture is performed. Operations such as attachment and removal (release) of the needle 200 can be easily and reliably performed.

(Modification of puncture adapter)
In the puncture adapter 100 according to the present embodiment described above, a plate-like release lever member is provided to facilitate operations such as attachment and removal of the puncture needle 200 when attached to the miniaturized ultrasonic probe 310. 004 and the release lever facing member 005 are provided. However, if there is another portion that applies force to the first guide member 001, only the release lever member 004 may be used. For example, when the ultrasonic probe 310 is used by being mounted on a conventional size ultrasonic probe 310, the ultrasonic probe 310 can be used as a member that applies a force to the first guide member 001. It is possible to apply force reliably only with the release lever member 004. As described above, even if the release lever facing member 005 is not provided, it is possible to obtain an effect that the puncture needle 200 does not come off and to reduce the size of the coil spring 007.

  Further, in the puncture adapter 100 according to the present embodiment described above, in order to increase the torque applied to the first guide member 001 and the second guide member 002 by the coil spring 007, it is opposite to the fitting portion with respect to the rotation shaft 003. The fulcrum shaft 008 of the coil spring 007 is arranged on the side. However, when the size of the coil spring 007 can be increased or when the coil spring 007 that can apply a large torque even if it is small is used, it is rotated. You may make the axis | shaft 003 and the fulcrum axis | shaft 008 correspond.

  Furthermore, in the puncture adapter 100 according to the present embodiment described above, as a minimum necessary configuration for preventing the puncture needle 200 from coming off, both end portions of the groove portion 012 of the first guide member 001 in the direction in which the groove extends. Although the planar region 011 is provided only in the predetermined range, the planar region 011 may be arranged in other portions in addition to both ends. For example, a planar region may be provided in the intermediate groove portion 012b in FIG.

  Further, in the puncture adapter 100 according to the present embodiment, as described above, in order to accurately place the puncture needle 200 on the two V-shaped planes of the groove portion 012 when the puncture needle 200 is held, the groove portion Although two grooves are provided in the direction orthogonal to the direction in which the groove 012 extends, only one groove or more grooves may be provided. Further, when pinching the puncture needle 200, the groove need not be provided unless it is considered to accurately place the puncture needle 200 on the two V-shaped planes of the groove portion 012. In that case, the inlet groove part 012a, the intermediate groove part 012b, and the outlet groove part 012c are configured as one continuous groove.

(Ultrasonic diagnostic equipment)
Next, an ultrasonic diagnostic apparatus including the ultrasonic probe 310 to which the puncture adapter 100 according to this embodiment is attached will be described. Here, in the following description, the puncture adapter 100 is described as being configured to be attached to the ultrasonic probe 310, but the puncture adapter 100 described above may be fixed to the ultrasonic probe 310 and integrated.

  FIG. 8 is a block diagram showing functions of the ultrasonic diagnostic apparatus according to the present embodiment. As shown in the figure, the ultrasonic diagnostic apparatus of the present embodiment includes an ultrasonic probe 310, a transmission / reception unit 320, a signal processing unit 330, an image generation unit 340, a display control unit 350, a user interface 360, a storage unit 370, and An overall control unit 380 is provided. Further, the signal processing unit 330 includes a B-mode processing unit 331 and a Doppler processing unit 332. The user interface 360 includes an input unit 361 and a display unit 362. The transmission / reception unit 320, the signal processing unit 330, the image generation unit 340, and the like may be configured by hardware such as an integrated circuit, but may be software programs that are modularized in terms of software. Hereinafter, the function of each component will be described.

  The ultrasonic probe 310 includes a plurality of piezoelectric elements that generate ultrasonic waves based on the pulse voltage from the transmission / reception unit 320 and convert the reflected waves from the subject P into electric signals. When ultrasonic waves are transmitted from the ultrasonic probe 310 to the subject P, the transmitted ultrasonic waves are successively reflected by the discontinuous surface of the acoustic impedance of the body tissue and received as an echo signal by the ultrasonic probe 310. The amplitude of this echo signal depends on the difference in acoustic impedance at the discontinuous surface that is to be reflected. In addition, the echo when the transmitted ultrasonic wave is reflected by the moving blood flow or the surface of the heart wall depends on the velocity component of the moving body in the ultrasonic transmission direction due to the Doppler effect. Receive a move.

  The input unit 361 of the user interface 360 inputs various instructions, conditions, a region of interest (ROI) setting instruction, various image quality condition setting instructions, and the like from the operator to the overall control unit 380 via the display control unit 350. There are various switches, buttons, trackballs, mice, keyboards, etc.

  The display control unit 350 receives images of in vivo morphological information and blood flow information generated by the image generation unit 340 and causes the display unit 362 to display the input images. The display control unit 350 corresponds to “display control means” in the present invention.

  The transmission / reception unit 320 includes a trigger generation circuit, a delay circuit, a pulsar circuit, and the like (not shown). In the pulsar circuit, a rate pulse for forming a transmission ultrasonic wave is repeatedly generated at a predetermined rate frequency fr Hz (period: 1 / fr second). Further, in the delay circuit, a delay time necessary for focusing the ultrasonic wave into a beam shape for each channel and determining the transmission directivity is given to each rate pulse. The trigger generation circuit applies a pulse voltage to the ultrasonic probe 310 at a timing based on the rate pulse. The transmission / reception unit 320 corresponds to “transmission / reception means” in the present invention.

  The B mode processing unit 331 mounted on the signal processing unit 330 receives an echo signal from the transmission / reception unit 320. The B-mode processing unit 331 performs logarithmic amplification, envelope detection processing, and the like on the received echo signal, and generates data in which the signal intensity is expressed by brightness. This data is output to the image generation unit 340.

  The Doppler processing unit 332 mounted on the signal processing unit 330 receives the echo signal from the transmission / reception unit 320. The Doppler processing unit 332 performs frequency analysis on velocity information from the received echo signal, extracts blood flow, tissue, and contrast agent echo components due to the Doppler effect, and obtains blood flow information such as average velocity, dispersion, and power at multiple points. . The obtained blood flow information is output to the image generation unit 340.

  The image generation unit 340 includes a scan converter 341. The scan converter 341 performs coordinate conversion or the like on the scanning line signal sequence of the ultrasonic scan, converts it into a scanning line signal sequence of a general video format represented by a television or the like, and converts an ultrasonic diagnostic image as a display image. Generate. The image generation unit 340 includes an image memory 342 for storing image data. For example, after diagnosis, an operator can call an image recorded during an examination from the image memory 342. Note that data before entering the image generation unit 340 may be referred to as “raw data”. Then, the image generation unit 340 generates a B-mode image in which the intensity of the reflected wave is expressed by luminance based on the data input from the B-mode processing unit 331, and outputs the B-mode image to the display control unit 350. Further, the image generation unit 340 generates an average speed image, a dispersion image, a power image, and a combination image thereof based on the data input from the Doppler processing unit 332, and outputs the generated image to the display control unit 350.

  The image memory 342 includes a storage memory that stores generated image data. This image data can be called by an operator after diagnosis, for example, and can be reproduced as a still image or as a moving image using a plurality of images. Further, the image memory 342 stores a signal immediately after being output from the transmission / reception unit 320, other raw data, image data acquired via a network, and the like as necessary.

  The signal processing unit 330 and the image generation unit 340 correspond to the “image generation unit” in the present invention.

  The storage unit 370 stores a control program for executing image generation and display processing, diagnostic information (patient ID, doctor's findings, etc.), diagnostic protocol, transmission / reception conditions, and other data groups. Further, it is also used for secondary storage of images stored in the image memory 342 as necessary.

  The overall control unit 380 has a function as an information processing device (computer), and is a functional unit that controls operation timing of each functional unit in the ultrasonic diagnostic apparatus and mediates data transfer. However, in practice, the overall control unit 380 mediates the transfer of data between the functional units. However, for the sake of convenience in the description here, it is assumed that each functional unit directly transfers data. Sometimes.

  As described above, the puncture adapter according to the present embodiment and the ultrasonic diagnostic apparatus equipped with the puncture adapter are in the direction in which the groove of the groove portion 012 of the first guide member 001 extends (the direction in which the puncture needle 200 advances and the direction in which it returns). A planar region 011 is provided in the V-shaped end portion on the second guide member 002 side in a predetermined range of both end portions. Thereby, when force is applied to the puncture needle 200 held by the fitting of the first guide member 001 and the second guide member 002 in a direction perpendicular to the advancing direction of the puncture needle 200, the puncture needle 200 is It is possible to prevent the 1 guide member 001 from coming off the groove part 012.

(Modification of ultrasonic diagnostic equipment)
The display control unit 350 according to the present embodiment further includes a puncture guideline adding unit 351. The puncture guideline adding unit 351 has a storage area such as a hard disk or a memory. When the puncture adapter 100 described above is attached to the storage area, the puncture guideline adding unit 351 extends the axis of the needle with respect to the generated ultrasound image. The position of the line, that is, the angle from which position and the puncture needle 200 is guided by the puncture adapter 100 is stored. For example, the puncture guideline adding unit 351 includes the coordinates of the insertion position of the puncture needle 200 and the angle of the traveling direction of the puncture needle 200 in the coordinates after conversion of the generated ultrasonic image into a scanning line signal sequence in a general video format. Is remembered. Further, the puncture guideline adding unit 351 stores a plurality of types of puncture guidelines in its own storage area.

  Here, the puncture guideline adding unit 351, for example, as a puncture guideline, is a continuous line, a discontinuous line, and a discontinuous point (here, a line is a figure having a certain length or more in the direction in which the figure extends). Yes, a point refers to a figure having a certain length or less in the direction in which the figure extends, and in this embodiment, the term “greater than or equal to” refers to a width equal to or greater than the width in the direction orthogonal to the line extending direction. ), A graphic such as a continuous line, a discontinuous line, a discontinuous point, and a cylindrical figure centering on the extension line are arranged so as to sandwich the memorized position. Here, an example of puncture guidelines will be described with reference to FIG. FIG. 9 is a diagram for explaining an example of puncture guidelines. The discontinuous line is the guideline 401 shown in FIG. 9A, and the discontinuous point is the guideline 402 shown in FIG. 9B. The continuous points are arranged so as to sandwich the memorized position. Is a guideline 403 shown in FIG. 9C, and the guideline 404 shown in FIG. 9D is a cylindrical figure centering on the extension line.

  The puncture guideline adding unit 351 receives the specification of the guideline type from the operator using the user interface 360 before the image generation. The puncture guideline adding unit 351 stores the designated puncture guideline type. However, when the puncture guideline adding unit 351 stores only one type of puncture guideline, the stored puncture guideline is always used without receiving designation from the operator.

  The puncture guideline adding unit 351 performs the ultrasonic diagnosis input from the image generation unit 340 based on the coordinates of the insertion position of the puncture needle 200 on the ultrasonic diagnostic image stored in advance and the angle of the traveling direction of the puncture needle 200. A specified kind of puncture guideline is added to the position where the puncture guideline is arranged on the image. Here, in this embodiment, adding the puncture guideline is performed simply by superimposing the puncture guideline on the ultrasonic diagnostic image. This puncture guideline adding portion 351 corresponds to “puncture guideline adding means” in the present invention.

  The display control unit 350 causes the display unit 362 to display an ultrasound diagnostic image to which the puncture guideline adding unit 351 has added the puncture guideline.

  Here, in the present embodiment, the puncture guideline adding unit 351 included in the display control unit 350 generates an ultrasonic diagnostic image to which the puncture guideline is added by simply superimposing the puncture guideline on the ultrasonic diagnostic image. May be other ways. For example, the image generation unit 340 may be configured to add the puncture guideline together with image processing that makes the puncture needle 200 easy to see, such as changing the dynamic range of the area around the puncture guideline.

  As described above, the ultrasonic diagnostic apparatus according to this modification is configured to display the ultrasonic diagnostic image by adding a graphic indicating the position where the puncture needle is guided by the puncture adapter. Thereby, it becomes possible to puncture more accurately and contribute to safe and accurate ultrasonic diagnosis.

001 First guide member 002 Second guide member 003 Rotating shaft 004 Release lever member 005 Release lever facing member 006 Mounting member 007 Coil spring 008 Supporting shaft 100 Puncture adapter 200 Puncture needle 310 Ultrasonic probe 320 Transceiver 330 Transmitter / receiver 330 Signal processor 331 B Mode processing unit 332 Doppler processing unit 340 Image generation unit 341 Scan converter 342 Image memory 350 Display control unit 351 Puncture guideline addition unit 360 User interface 361 Display unit 362 Storage unit 380 General control unit P Subject

Claims (8)

An attachment mechanism for attaching to an ultrasonic probe that transmits and receives ultrasonic waves;
A first guide member fixed to the attachment mechanism and having a groove portion having a substantially V-shaped cross section;
The has a convex portion for the groove and the fitting, before and a second guide member Kitotsu portion is an engagement or disengagement across the puncture needle into the groove, and
In a state where the fitting the front Symbol groove and the convex portion, a puncture adapter for insertion movement of the puncture needle toward the other end from the direction of one end of extension of the groove,
The V-shaped groove portion of the first guide member is divided into a plurality of portions including an inlet groove portion, an intermediate groove portion, and an outlet groove portion,
The inlet grooves and openings the inner wall surface of the outlet grooves of the groove of the V-shaped, wherein the plane form which includes the depth direction of the direction and the groove portion groove extends, the plane area of the opposed pair each other Make up,
A puncture adapter characterized by that.   The puncture adapter according to claim 1, wherein the apex of the convex portion forms a plane along the insertion direction of the puncture needle. Wherein the first guide member and said second guide member is disposed in substantially opposed positions, respectively, the plate-like two projecting on the opposite side of the respective positions of the groove and the protrusion across且one rotation axis 3. The puncture adapter according to claim 1, further comprising a release member, wherein the groove portion and the convex portion are detached from the fitted state by applying an external force to the two release members. The puncture adapter according to any one of claims 1 to 3 , wherein a length of the groove portion and the convex portion in the insertion direction of the puncture needle is in a range of 4 mm to 20 mm. Before Stories second guide member has the said orthogonal grooves and the same number of rectilinear portions of the insertion direction orthogonal the direction of the first guide member of the puncture needle,
When the groove portion and the convex portion are fitted, each orthogonal groove and each orthogonal convex portion are fitted,
The puncture adapter according to any one of claims 1 to 4 , wherein the puncture adapter is provided. An image for generating an ultrasonic tomographic image based on the received ultrasonic wave, an ultrasonic probe, a puncture adapter attached to the ultrasonic probe, a transmission / reception means for transmitting / receiving ultrasonic waves via the ultrasonic probe, An ultrasonic diagnostic apparatus comprising: generating means; and display control means for displaying the ultrasonic tomographic image on a display means,
The puncture adapter is
An attachment mechanism for attaching to an ultrasonic probe that transmits and receives ultrasonic waves;
A first guide member fixed to the attachment mechanism and having a groove portion having a substantially V-shaped cross section;
The has a convex portion for the groove and the fitting, before and a second guide member Kitotsu portion is an engagement or disengagement across the puncture needle into the groove, and
In a state where the fitting the front Symbol groove and the convex portion, a puncture adapter for insertion movement of the puncture needle toward the other end from the direction of one end of extension of the groove,
The V-shaped groove portion of the first guide member is divided into a plurality of portions including an inlet groove portion, an intermediate groove portion, and an outlet groove portion,
The inlet grooves and openings the inner wall surface of the outlet grooves of the groove of the V-shaped, wherein the plane form which includes the depth direction of the direction and the groove portion groove extends, the plane area of the opposed pair each other Make up,
An ultrasonic diagnostic apparatus. A puncture guideline that stores in advance the position of the extension line of the axis of the needle connected to the puncture adapter with respect to the ultrasonic tomographic image, and adds a graphic representing the pre-stored position on the ultrasonic tomographic image The ultrasonic diagnostic apparatus according to claim 6 , further comprising an additional unit. The puncture guideline adding unit is arranged on a position stored as a figure to be added, continuous lines, discontinuous lines, and discontinuous points, arranged so as to sandwich the stored position. At least one of a line, a discontinuous line, a discontinuous point, and a cylindrical figure centered on the extension line is stored, and a predesignated figure is added. The ultrasonic diagnostic apparatus according to claim 7 .

Images