JP2006334090A - Piercing adapter, and ultrasonic probe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piercing adapter of which the outer shape including the driving range of constituent elements can be miniaturized without spoiling the attaching/detaching function of a piercing needle, and to provide an ultrasonic probe. <P>SOLUTION: This piercing adapter 10 has a first needle guide 13, a second needle guide 14 which is confronted with the first needle guide 13, and needle guide moving mechanisms 16 and 18. In this case, the needle guide moving mechanisms 16 and 18 pinch and release a piercing needle 17 by moving at least one of the first needle guide 13 and the second needle guide 14 in parallel. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a puncture adapter and an ultrasonic probe that can hold a puncture needle used in a puncture procedure performed under an ultrasound image.

  Conventionally, there is an ultrasonic diagnostic apparatus as one of image diagnostic apparatuses. The ultrasonic diagnostic apparatus radiates an ultrasonic pulse generated from a piezoelectric vibrator built in an ultrasonic probe into a subject, and generates an ultrasonic reflected wave generated by a difference in acoustic impedance of the subject tissue by the piezoelectric vibrator. It is received and displayed on the monitor as an ultrasonic image.

  A puncture technique is known as one of the treatment methods using this ultrasonic diagnostic apparatus (see, for example, Patent Document 1). The puncture technique is a treatment method in which an ultrasonic diagnostic apparatus is used to advance a puncture needle toward a puncture target such as a tumor under an ultrasound image, and treatment such as tissue collection or tissue ablation is performed. In the puncture technique, the puncture needle is fixed to the ultrasonic probe via a puncture adapter. The puncture adapter is detachable from the ultrasonic probe.

  FIG. 37 is a front view showing a state where a puncture needle is fixed to an ultrasonic probe using a conventional puncture adapter, and FIG. 38 is a side view of the conventional puncture adapter shown in FIG.

  The conventional puncture adapter 1 includes a needle release lever 2, a needle thickness adjusting screw 3, a moving needle guide 4, a fixed needle guide 5, and a probe fixing band 6. The puncture adapter 1 is fixed to the ultrasonic probe 7 by a probe fixing band 6. Further, the puncture needle 8 is held between the moving needle guide 4 and the fixed needle guide 5. At this time, the space between the moving needle guide 4 and the fixed needle guide 5 is adjusted by the needle thickness adjusting screw 3 in accordance with the thickness of the puncture needle 8. Further, the puncture needle 8 can be detached from the puncture adapter 1 by rotating the needle release lever 2 with the needle release lever fulcrum 9 as a fulcrum.

  FIG. 39 is a cross-sectional view schematically showing a needle thickness adjusting mechanism in the conventional puncture adapter 1 shown in FIG.

  As shown in FIG. 39, the moving needle guide 4 is provided with a recess for holding the puncture needle 8. A fixed needle guide 5 is provided opposite to the moving needle guide 4. The moving needle guide 4 can be translated in the direction toward the fixed needle guide 5 or away from the fixed needle guide 5 by rotating the needle thickness adjusting screw 3.

  A puncture needle 8 is disposed between the moving needle guide 4 and the fixed needle guide 5, and is adjusted between the moving needle guide 4 and the fixed needle guide 5 according to the thickness of the puncture needle 8 by the needle thickness adjusting screw 3. Space is adjusted. That is, the needle thickness adjusting mechanism in the conventional puncture adapter 1 moves the movable needle guide 4 in parallel by a screw mechanism, and adjusts the distance between the movable needle guide 4 and the fixed needle guide 5 according to the thickness of the puncture needle 8. Structure.

  FIG. 40 is a cross-sectional view showing a simplified needle release mechanism in the conventional puncture adapter 1 shown in FIG.

When removing the puncture needle 8 from the puncture adapter 1 as shown in FIG. 40, the needle release lever 2 is rotated about the needle release lever fulcrum 9. Then, the movable needle guide 4 integrated via the needle release lever 2 and the needle thickness adjusting screw 3 also rotates around the needle release lever fulcrum 9 together with the needle release lever 2. Thereby, the space | interval of the movable needle guide 4 and the fixed needle guide 5 becomes wide, and the puncture needle 8 can be removed from the puncture adapter 1. That is, the needle release mechanism in the conventional puncture adapter 1 has a structure in which the puncture needle 8 is detached from the puncture adapter 1 by rotating the movable needle guide 4.
Japanese Patent Laid-Open No. 10-248849

  However, when the conventional puncture adapter 1 is used to fix the puncture needle 8 to the ultrasonic probe 7, the movable needle guide 4 becomes larger as the holding position of the puncture needle 8 is closer to the needle release lever fulcrum 9. The puncture needle 8 cannot be released from the puncture adapter 1 unless it is rotated. Therefore, when the holding position of the puncture needle 8 is close to the needle release lever fulcrum 9, the operating angle of the needle release lever 2 is increased. For this reason, there exists a problem that the external shape of the puncture adapter 1 including the drive range of the movable needle guide 4 may become large, and operation | movement of the ultrasonic probe 7 may be inhibited.

  The present invention has been made in order to cope with such a conventional situation, and a puncture adapter and an ultrasonic probe capable of downsizing an outer shape including a drive range of a component without impairing the attachment / detachment function of the puncture needle The purpose is to provide.

  In order to achieve the above-described object, the puncture adapter according to the present invention includes a first needle guide, a second needle guide facing the first needle guide, and It has a needle guide moving mechanism that moves at least one of the first needle guide and the second needle guide in parallel to pinch and release the puncture needle.

  Moreover, in order to achieve the above-mentioned object, the puncture adapter according to the present invention includes a first needle guide and a second needle guide facing the first needle guide as described in claim 2. The distance between the first needle guide and the second needle guide is adjusted according to the thickness of the puncture needle by translating at least one of the first needle guide and the second needle guide A needle thickness adjusting mechanism that suppresses an increase in the distance between the first needle guide and the second needle guide, and cancels the suppression to release the first needle guide and the second needle guide. And a needle release mechanism for releasing the puncture needle by opening a space between the first needle guide and the second needle guide by translating at least one of the first needle guide and the second needle guide.

  In order to achieve the above object, an ultrasonic probe according to the present invention includes an ultrasonic probe main body that transmits and receives ultrasonic waves to a subject, and punctures the ultrasonic probe main body. A puncture adapter for attaching a needle, wherein the puncture adapter includes a first needle guide, a second needle guide facing the first needle guide, the first needle guide and the second needle. And a needle guide moving mechanism for holding and releasing the puncture needle by translating at least one of the guides.

  In order to achieve the above object, an ultrasonic probe according to the present invention includes an ultrasonic probe main body that transmits and receives ultrasonic waves to a subject, and punctures the ultrasonic probe main body. A puncture adapter for attaching a needle, wherein the puncture adapter includes a first needle guide, a second needle guide facing the first needle guide, the first needle guide, and the second needle guide. A needle thickness adjusting mechanism that adjusts an interval between the first needle guide and the second needle guide according to a thickness of the puncture needle by translating at least one of the needle guides; The increase in the distance between the needle guide and the second needle guide is suppressed, and the suppression is canceled and at least one of the first needle guide and the second needle guide is moved in parallel. First needle guy Having a said second needle guide and the needle releases mechanism open space is released the puncture needle is characterized in.

  In the puncture adapter and the ultrasonic probe according to the present invention, the outer shape including the driving range of the constituent elements can be reduced in size without impairing the detachment function of the puncture needle.

  Embodiments of a puncture adapter and an ultrasonic probe according to the present invention will be described with reference to the accompanying drawings.

  1 is a cross-sectional configuration diagram showing a first embodiment of the puncture adapter according to the present invention, FIG. 2 is a view of the puncture adapter 10 shown in FIG. 1 viewed from the direction A, and FIG. It is a right view.

  The puncture adapter 10 is configured by providing a frame 11 with a probe fixing band 12, a moving needle guide 13, and a fixed needle guide 14.

  The probe fixing band 12 has a function of fixing the puncture adapter 10 at a required position of the ultrasonic probe main body 15. For example, the probe fixing band 12 includes a frame-shaped portion 12a, and is configured so that the puncture adapter 10 can be fixed to the ultrasonic probe main body 15 by fitting the ultrasonic probe main body 15 into the frame.

  The fixed needle guide 14 is fixed to the frame 11. The fixed needle guide 14 is formed in, for example, a U-shape, and the movable needle guide 13 is disposed inside the fixed needle guide 14 so as to face the inner surface of the fixed needle guide 14 on the frame 11 side.

  Here, the puncture adapter 10 is provided with a needle guide moving mechanism for moving the moving needle guide 13 in parallel to the fixed needle guide 14 side. Furthermore, this needle guide moving mechanism can be configured by two mechanisms depending on the application. That is, the needle guide moving mechanism includes a needle thickness adjusting mechanism that finely adjusts the distance between the moving needle guide 13 and the fixed needle guide 14 according to the thickness of the puncture needle 17, and the puncture needle 17 and the fixed needle guide 13. In order to detach (release) from the needle guide 14, it can be configured by a needle release mechanism for freely opening an interval between the moving needle guide 13 and the fixed needle guide 14.

  Of these, the needle thickness adjusting mechanism can be configured using, for example, a screw mechanism. As an example, a needle thickness adjusting screw 16, which is a bolt-shaped male screw, is provided through the frame 11, the fixed needle guide 14, and the moving needle guide 13. The needle thickness adjusting screw 16 is not connected to the frame 11 and the fixed needle guide 14 by screws, but the moving needle guide 13 is formed with a female screw so that the needle thickness adjusting screw 16 and the moving needle guide 13 are connected to each other. Connected with screws. Further, the needle thickness adjusting screw 16 is arranged in such a direction that the opposite side of the fixed needle guide 14 with respect to the frame 11 is the head 16 a of the needle thickness adjusting screw 16. Then, since the fixed needle guide 14 is fixed to the frame 11, when the needle thickness adjusting screw 16 is rotated, the moving needle guide 13 is moved in parallel to the fixed needle guide 14 side by the screw mechanism.

  Then, the needle thickness adjusting screw 16 is rotated so that the distance between the moving needle guide 13 and the fixed needle guide 14 is adjusted according to the thickness of the puncture needle 17, thereby puncturing with the moving needle guide 13 and the fixed needle guide 14. The needle 17 can be clamped.

  4 is a perspective view showing an example of the moving needle guide 13 in the puncture adapter 10 shown in FIG. 1, FIG. 5 is a front view of the moving needle guide 13 shown in FIG. 4, and FIG. 6 is a view B of the moving needle guide 13 shown in FIG. -B sectional view, FIG. 7 is a top view of the moving needle guide 13 shown in FIG. 5, and FIG. 8 is a view of the moving needle guide 13 shown in FIG.

  9 is a perspective view of the fixed needle guide 14 in the puncture adapter 10 shown in FIG. 1, FIG. 10 is a front view of the fixed needle guide 14 shown in FIG. 9, and FIG. 11 is a top view of the fixed needle guide 14 shown in FIG. 12 is a DD cross-sectional view of the fixed needle guide 14 shown in FIG.

  As shown in FIGS. 4, 5, 6, 7, and 8, the moving needle guide 13 includes a thick plate-like portion (thick plate-like portion 13 a) for holding the puncture needle 17, and needle thickness adjustment. A plate-like portion (plate-like portion 13c) provided with a through hole 13b for inserting the screw 16 can be provided. Similarly, as shown in FIGS. 9, 10, 11, and 12, the fixed needle guide 14 also has a thick plate portion (thick plate portion 14 a) for holding the puncture needle 17, and a needle thickness adjusting screw 16. And a plate-like portion (plate-like portion 14c) provided with a through-hole 14b for inserting a hole.

  Furthermore, a plurality of grooves 13 d are provided in the thick plate-like portion 13 a of the moving needle guide 13 so as to intersect with each other. Further, the thick plate-like portion 14a of the fixed needle guide 14 is provided with a plurality of convex portions 14d so as to engage with the grooves 13d provided in the thick plate-like portion 13a of the moving needle guide 13. Therefore, when the puncture needle 17 is clamped by moving the thick plate-like portion 13a of the movable needle guide 13 toward the thick plate-like portion 14a of the fixed needle guide 14, the groove 13d of the movable needle guide 13 and the fixed needle guide 14 convex portions 14d are engaged with each other, and sliding of the puncture needle 17 in the contact surface direction of the moving needle guide 13 and the fixed needle guide 14 is suppressed.

  On the other hand, as an example of the needle release mechanism, the puncture adapter 10 is provided with a stopper mechanism that prevents the needle thickness adjusting screw 16 from sliding in the longitudinal direction. For example, the needle release mechanism can be configured by forming the root of the needle thickness adjusting screw 16 in a stepped shaft shape and providing an adjusting screw slide stopper 18. In other words, the adjustment screw slide stopper 18 is, for example, a plate-like portion having a hole or recess that is wider than the narrow shaft of the needle thickness adjustment screw 16 and narrower than the thick shaft on the root side of the needle thickness adjustment screw 16. A thick plate-like portion that is sandwiched between the frame 11 and the fixed needle guide 14 and fixes the adjustment screw slide stopper 18 can be provided.

  The adjustment screw slide stopper 18 has a plate-like portion having a hole or a recess between the moving needle guide 13 and the fixed needle guide 14, and a thick plate-like portion between the frame 11 and the fixed needle guide 14. Are arranged as follows. Further, the thin side of the needle thickness adjusting screw 16 is inserted into the hole or recess of the adjusting screw slide stopper 18.

  Then, the thick plate portion of the adjustment screw slide stopper 18 is fixed between the frame 11 and the fixed needle guide 14. When the adjustment screw slide stopper 18 and the stepped surface of the needle thickness adjustment screw 16 are in contact with each other and the needle thickness adjustment screw 16 is rotated to make the movable needle guide 13 and the fixed needle guide 14 approach each other. Even so, the needle thickness adjusting screw 16 can be operated only in the rotational direction without sliding to the movable needle guide 13 side.

  13 is a perspective view showing an example of the adjustment screw slide stopper 18 in the puncture adapter 10 shown in FIG. 1, FIG. 14 is a front view of the adjustment screw slide stopper 18 shown in FIG. 13, and FIG. 15 is an adjustment screw slide stopper shown in FIG. 18 is a left side view, and FIG. 16 is a bottom view of the adjusting screw slide stopper 18 shown in FIG.

  As shown in FIGS. 13, 14, 15, and 16, the adjustment screw slide stopper 18 includes, for example, a washer-like plate-like portion 18 a for inserting the needle thickness adjustment screw 16, the frame 11, and the fixed needle guide 14. A thick plate-like portion (thick plate-like portion 18b) and a lever 18c sandwiched between the two can be provided.

  When the puncture needle 17 is detached from the puncture adapter 10, the adjustment screw slide stopper 18 is rotated about the axial direction of the needle thickness adjustment screw 16 by pulling up the lever 18 c of the adjustment screw slide stopper 18. Then, the thick plate-like portion 18 b of the adjustment screw slide stopper 18 is detached from between the frame 11 and the fixed needle guide 14. Thereby, the stopper function of the adjustment screw slide stopper 18 is released, and the needle thickness adjustment screw 16 can be slid in the longitudinal direction. When the head 16a of the needle thickness adjusting screw 16 is pushed toward the moving needle guide 13, the moving needle guide 13 coupled to the needle thickness adjusting screw 16 together with the needle thickness adjusting screw 16 is integrally adjusted. The screw 16 is slid in the longitudinal direction of the screw 16. As a result, the distance between the moving needle guide 13 and the fixed needle guide 14 is widened, and the puncture needle 17 can be detached from the puncture adapter 10.

  Further, the puncture adapter 10 includes a backlash suppression mechanism that suppresses the influence of backlash of the needle thickness adjusting screw 16 and a movable needle guide 13 and a fixed needle guide that accompany the rotation of the needle thickness adjusting screw 16 as necessary. A rotation suppression mechanism that suppresses movement of the needle thickness adjusting screw 16 of each component in the rotation direction so that the component such as 14 does not rotate unnecessarily is provided.

  The backlash suppressing mechanism can be constituted by, for example, a spring 19 and a spring case 20. The spring case 20 is formed in a cylindrical shape having both ends opened, and is provided between the moving needle guide 13 and the fixed needle guide 14 with the longitudinal direction of the needle thickness adjusting screw 16 as the axial direction. Then, the spring 19 is housed in the spring case 20 with the axial direction of the spring case 20 as the expansion / contraction direction. Further, the moving needle guide 13 side of the spring case 20 is opened with a larger diameter than the outer shape of the spring 19, while the fixed needle guide 14 side of the spring case 20 is smaller than the outer shape of the spring 19 and has a needle thickness adjusting screw. It is opened with an aperture larger than 16 thickness. The needle thickness adjusting screw 16 is screwed to the moving needle guide 13 through the inside of the spring case 20 and the spring 19.

  Then, one end of the spring 19 presses the spring case 20 against the adjustment screw slide stopper 18 side by the extension force of the spring 19, while the other end of the spring 19 presses the moving needle guide 13 away from the fixed needle guide 14. As a result, even if there is a backlash between the needle thickness adjusting screw 16 and the moving needle guide 13, the moving needle guide 13 always receives a force in the direction of pulling away from the fixed needle guide 14 to cause positional deviation and rattling. Is suppressed.

  Furthermore, the adjustment screw slide stopper 18 can be held more stably by the extension force of the spring 19.

  In addition, the rotation suppression mechanism can be configured using, for example, the shaft 21. When the shaft 21 is used, the shaft 21 is provided at a position passing through the frame 11, the moving needle guide 13, and the fixed needle guide 14 in a direction substantially parallel to the longitudinal direction of the needle thickness adjusting screw 16. The shaft 21 suppresses parallel movement and rotational movement in a plane perpendicular to the longitudinal direction of the needle thickness adjusting screw 16 (movement direction of the moving needle guide 13).

  And the puncture needle 17 is fixed to the required position of the ultrasonic probe main body 15 using the puncture adapter 10 comprised in this way.

  FIG. 17 is a schematic configuration diagram of an ultrasonic diagnostic apparatus in which the puncture needle 17 is fixed to the ultrasonic probe main body 15 via the puncture adapter 10 shown in FIG.

  The ultrasonic diagnostic apparatus 30 includes an apparatus main body 31, an ultrasonic probe main body 15, and an electric signal transmission cable 32. The apparatus main body 31 gives an electric signal to the ultrasonic probe main body 15 via the electric signal transmission cable 32, and transmits / receives an ultrasonic signal between the ultrasonic probe main body 15 and a subject (not shown) as an electric signal. Configured to collect echo signals. The echo signal received by the ultrasonic probe main body 15 is guided to the apparatus main body 31 via the electric signal transmission cable 32, and an ultrasonic image is created from the echo signal in the apparatus main body 31.

  The puncture adapter 10 is fixed to the ultrasonic probe main body 15, and the puncture needle 17 is held on the puncture adapter 10. At this time, the puncture needle 17 is disposed at a predetermined position toward the ultrasound transmission / reception region 33. Then, the ultrasonic diagnostic apparatus 30 can perform biological tissue collection and treatment of the subject using the puncture needle 17 under an ultrasonic image obtained by transmitting and receiving an ultrasonic signal to and from the subject. That is, the puncture needle 17 can be advanced toward a puncture target such as a tumor in the subject, and treatment such as tissue collection or tissue ablation can be performed.

  According to the puncture adapter 10 as described above, the movable needle guide 13 is slid in parallel to attach and detach the puncture needle 17, so that the distance between the holding position of the puncture needle 17 and the ultrasonic probe main body 15 is increased. Regardless, the amount of movement of the movable needle guide 13 required to release the puncture needle 17 from the puncture adapter 10 is constant. In addition, unless the distance between the holding position of the puncture needle 17 and the ultrasonic probe main body 15 is sufficiently close, the moving amount of the moving needle guide 13 should be smaller than that when the moving needle guide 13 is rotated. Can do. As a result, the outer shape including the drive range of the puncture adapter 10 can be limited to a certain size.

  Further, conventionally, the needle thickness adjustment and release of the puncture needle 8 are performed by separate mechanisms (screw adjustment mechanism and rotation mechanism), whereas the puncture adapter 10 allows the needle thickness of the puncture needle 17 to be increased. Both the height adjustment and the release of the puncture needle 17 from the puncture adapter 10 can be performed only by sliding the movable needle guide 13 accompanying the rotation operation of the needle thickness adjustment screw 16. For this reason, the structure of the puncture adapter 10 can be simplified, and the external shape of the puncture adapter 10 can be reduced.

  18 is a cross-sectional configuration diagram showing a second embodiment of the puncture adapter according to the present invention, and FIG. 19 is a view of the puncture adapter 10A shown in FIG.

  The puncture adapter 10A shown in FIGS. 18 and 19 is different from the puncture adapter 10 shown in FIG. 1 in that the screw side of the needle thickness adjusting screw 16 is held by the fixed needle guide 14 via the reverse spring 40. . Since other configurations and operations are not substantially different from the puncture adapter 10 shown in FIG. 1, the same components are denoted by the same reference numerals and description thereof is omitted.

  That is, in the puncture adapter 10A, the reverse spring casing 41 is fixed to the screw side of the needle thickness adjusting screw 16 protruding through the moving needle guide 13. The reverse spring casing 41 has a cylindrical shape with one end open, with the opening side facing the fixed needle guide 14 side and the closing side facing the screw side of the needle thickness adjusting screw 16.

  On the other hand, in the portion of the fixed needle guide 14 corresponding to the reverse spring casing 41, a cylindrical sliding member 42 having both ends that slide with the outer peripheral surface of the reverse spring casing 41 is provided. That is, the reverse spring casing 41 is inserted from one end side of the sliding member 42. Further, the other end side of the sliding member 42 is closed by a reverse spring receiver 43.

  A reverse spring 40 is provided in a space formed by the reverse spring receiver 43, the sliding member 42, and the reverse spring casing 41 with its expansion / contraction direction facing the longitudinal direction of the needle thickness adjusting screw 16. Therefore, one end of the reverse spring 40 is brought into contact with the fixed needle guide 14 and the other end is brought into contact with the screw side of the needle thickness adjusting screw 16 substantially.

  Therefore, in a state where the needle thickness adjusting screw 16 is not operated, that is, when the needle thickness adjusting screw 16 is pushed to detach the puncture needle 17 from the puncture adapter 10A, the needle is adjusted by the spring extension action of the reverse spring 40. The thickness adjusting screw 16 always receives force on the head 16a side. For this reason, the needle thickness adjusting screw 16 moves to the head 16a side, and the head 16a of the needle thickness adjusting screw 16 is disposed at the needle thickness adjusting screw protruding position 44, which is one end of the slide range.

  That is, in the puncture adapter 10A, the moving needle guide position for adjusting the position of the moving needle guide 13 by moving the protruding position of the head 16a of the needle thickness adjusting screw 16 from the frame 11 to the protruding position 44 of the needle thickness adjusting screw. An adjustment mechanism is provided. The moving needle guide position adjusting mechanism may be configured by a mechanism other than the spring mechanism such as the reverse spring 40.

  Thereby, in the puncture adapter 10 </ b> A, the movable needle guide 13 together with the needle thickness adjusting screw 16 can be easily translated to an appropriate position for holding the puncture needle 17 by the extending action of the reverse spring 40. Further, the adjustment screw slide stopper 18 can be easily sandwiched between the frame 11 and the fixed needle guide 14.

  20 is a cross-sectional configuration diagram showing a third embodiment of the puncture adapter according to the present invention, FIG. 21 is a view of the puncture adapter 10B shown in FIG. 20 viewed from the F direction, and FIG. 22 is a diagram of the puncture adapter 10B shown in FIG. It is a right view.

  The puncture adapter 10B shown in FIGS. 20, 21, and 22 is provided with a backlash suppressing mechanism constituted by components such as the spring 19 and the spring case 20, a needle thickness adjusting screw 16 and an adjusting screw slide stopper 18. Instead, the configuration in which the bar-like needle release button 50 and the moving needle guide fixing screw 51 are provided and the point where the needle release button 50 is integrated with the moving needle guide 13 are different from the puncture adapter 10A shown in FIGS. . Since other configurations and operations are not substantially different from the puncture adapter 10A shown in FIGS. 18 and 19, the same components are denoted by the same reference numerals and description thereof is omitted.

  The puncture adapter 10B is provided with a needle release button 50 and a moving needle guide fixing screw 51. The needle release button 50 has a head 50 a outside the frame 11, and is provided through the frame 11, the fixed needle guide 14, and the moving needle guide 13. The needle release button 50 can move inside the holes of the frame 11 and the fixed needle guide 14, but is fixed to the moving needle guide 13.

  The needle release button 50 has a step on the side of the moving needle guide 13 of the fixed needle guide 14, and a washer 52 whose outer periphery is larger than the hole of the moving needle guide 13 is between the fixed needle guide 14 and the moving needle guide 13. Provided at the step portion of the needle release button 50. Further, a reverse spring receiver 43, a sliding member 42, a reverse spring casing 41, and a reverse spring 40 are provided at the tip opposite to the head 50a of the needle release button 50, similarly to the puncture adapter 10A.

  Therefore, when the head 50 a of the needle release button 50 is pressed, the moving needle guide 13 is translated in parallel with the needle release button 50 in the direction of releasing the puncture needle 17. On the contrary, when the pressing of the needle release button 50 is released, the moving needle guide 13 moves in parallel with the needle release button 50 in the direction of holding the puncture needle 17 by the extension force of the reverse spring 40. Here, the extension force of the reverse spring 40 is selected so that the puncture needle 17 is sandwiched between the moving needle guide 13 and the fixed needle guide 14 by an appropriate holding force.

  For this reason, the needle release button 50 is pressed to pull the moving needle guide 13 away from the fixed needle guide 14, the puncture needle 17 is disposed at a predetermined position between the moving needle guide 13 and the fixed needle guide 14, and then the needle release button 50 is moved. When the pressing is released, the puncture needle 17 is sandwiched between the moving needle guide 13 and the fixed needle guide 14 by the extending action of the reverse spring 40.

  On the other hand, the screw release button 50 can be fixed by bringing the screw side of the moving needle guide fixing screw 51 into contact with an arbitrary part of the needle release button 50.

  FIG. 23 is a view for explaining a method of fixing the needle thickness adjusting screw 16 by the moving needle guide fixing screw 51 in the puncture adapter 10B shown in FIG.

  FIG. 23 is a view showing the longitudinal direction of the moving needle guide fixing screw 51 as the horizontal plane direction with the length direction of the needle thickness adjusting screw 16 as the line-of-sight direction. As shown in FIG. 23, when the moving needle guide fixing screw 51 is rotated, the needle release button 50 can be fixed or released.

  Therefore, in the puncture adapter 10B, the needle release button 50 is moved by the moving needle guide fixing screw 51 while the puncture needle 17 is held between the moving needle guide 13 and the fixed needle guide 14 with an appropriate holding force by the extension action of the reverse spring 40. At the same time, the position of the moving needle guide 13 can be fixed.

  That is, in puncture adapter 10B, a needle release mechanism is formed by needle release button 50 and moving needle guide fixing screw 51, while a needle thickness adjustment mechanism is formed by reverse spring 40, which is an example of a spring mechanism.

  For this reason, according to the puncture adapter 10B, the manual movement of the needle thickness adjusting screw 16 as in the puncture adapter 10A shown in FIGS. The distance from the fixed needle guide 14 can be automatically adjusted.

  It should be noted that not only a force is applied to the moving needle guide 13 by pressing like the needle release button 50 in the puncture adapter 10B, but a force in the sliding direction is applied to the moving needle guide 13 by pulling the needle release button 50. It may be configured.

  FIG. 24 is a sectional view showing a fourth embodiment of the puncture adapter according to the present invention, and FIG. 25 is a view of the puncture adapter 10C shown in FIG. 24 as viewed from the G direction.

  In the puncture adapter 10C shown in FIGS. 24 and 25, a pair of permanent magnets 60A and 60B in which the same magnetic poles face each other are provided instead of the reverse spring 40 on the tip side (screw side) of the needle thickness adjusting screw 16. The configuration is different from the puncture adapter 10A shown in FIGS. Since other configurations and operations are not substantially different from the puncture adapter 10A shown in FIGS. 18 and 19, the same components are denoted by the same reference numerals and description thereof is omitted.

  In puncture adapter 10 </ b> C, one permanent magnet 60 </ b> B is provided on the distal end side of needle thickness adjusting screw 16, and the other permanent magnet 60 </ b> A is provided on fixed needle guide 14 facing the distal end side of needle thickness adjusting screw 16. In the fixed needle guide 14, for example, a cylindrical permanent magnet casing 61 having an opening at one end is provided with the opening portion facing the needle thickness adjusting screw 16. A permanent magnet 60 </ b> A is provided on the inner surface of the closed side in the permanent magnet casing 61.

  Here, since the permanent magnet 60B provided on the needle thickness adjusting screw 16 and the permanent magnet 60A provided on the fixed needle guide 14 are opposed to each other with the same magnetic pole facing each other, each permanent magnet 60A, The needle thickness adjusting screw 16 always receives force on the head 16a side by the magnetic force repelling between 60B.

  Accordingly, similarly to the puncture adapter 10A shown in FIGS. 18 and 19, when the stopper function of the adjusting screw slide stopper 18 is released and the needle thickness adjusting screw 16 is not pressed, the space between the permanent magnets 60A and 60B. The needle thickness adjusting screw 16 always receives a force on the head 16a side due to the magnetic force. For this reason, the needle thickness adjusting screw 16 moves to the head 16a side, and the head 16a of the needle thickness adjusting screw 16 is disposed at the needle thickness adjusting screw protruding position 44, which is one end of the slide range.

  In other words, the puncture adapter 10C has a moving needle guide position for adjusting the position of the moving needle guide 13 by moving the protruding position of the head 16a of the needle thickness adjusting screw 16 from the frame 11 to the protruding position 44 of the needle thickness adjusting screw. An adjustment mechanism is provided. The puncture adapter 10C is configured by a pair of permanent magnets 60A and 60B instead of the moving needle guide position adjusting mechanism in the puncture adapter 10A shown in FIGS. 18 and 19 instead of a spring mechanism such as the reverse spring 40. is there.

  Thereby, in the puncture adapter 10C, in addition to the same effect as the puncture adapter 10A shown in FIGS. 18 and 19, the moving needle guide position adjusting mechanism can be configured only by arranging the permanent magnets 60A and 60B to face each other. When used, the bag structure required is not necessary, and it can be expected to lead to simplification of the structure of the moving needle guide position adjusting mechanism. Further, it is possible to avoid various problems relating to the spring such as the spring sag and wear which are feared when a spring mechanism such as the reverse spring 40 is used. Furthermore, if the permanent magnet 60 </ b> A is sealed with the permanent magnet casing 61, the invasion of liquid, fungi, and the like is avoided, which is advantageous in terms of hygiene.

  FIG. 26 is a cross-sectional view showing a fifth embodiment of the puncture adapter according to the present invention, FIG. 27 is a view of the puncture adapter 10D shown in FIG. 26 viewed from the H direction, and FIG. 28 is a diagram of the puncture adapter 10D shown in FIG. It is a right view.

  The puncture adapter 10D shown in FIGS. 26, 27, and 28 is different from the puncture adapter 10 shown in FIG. 1 in the configuration in which the needle thickness adjusting nut 70 is provided and the structure of each component. Since other configurations and operations are not substantially different from the puncture adapter 10 shown in FIG. 1, the same components are denoted by the same reference numerals and description thereof is omitted.

  In puncture adapter 10D, moving needle guide 13 is provided inside a U-shaped plate-like portion in fixed needle guide 14 in which holes for inserting needle thickness adjusting screws 16 are provided in two straight lines. At this time, the thick plate-like portion of the movable needle guide 13 for holding the puncture needle 17 and the thick plate-like portion of the fixed needle guide 14 can be engaged with each other in the same manner as the puncture adapter 10 shown in FIG. Opposed to the position. The movable needle guide 13 is also provided with a U-shaped plate-like portion having holes for inserting the needle thickness adjusting screw 16 at two locations on a straight line.

  An adjustment screw slide stopper 18 is provided inside the U-shaped plate-like portion of the moving needle guide 13. The adjustment screw slide stopper 18 is configured by providing a lever on the ring-shaped portion.

  In addition, a cylindrical needle thickness adjusting nut 70 having an internal thread on the inner surface is provided inside the U-shape of the fixed needle guide 14. Further, the male screw formed at the corresponding portion of the needle thickness adjusting screw 16 and the female screw of the needle thickness adjusting nut 70 are fastened. Further, a plate-like portion is provided at the end of the needle thickness adjusting nut 70 on the frame 11 side.

  The needle thickness adjusting screw 16 has the head 16a facing the outer surface side of the frame 11, and has a hole in the frame 11, one hole in the fixed needle guide 14, one hole in the moving needle guide 13, and an adjusting screw slide stopper. 18, the other hole of the fixed needle guide 14 and the other hole of the moving needle guide 13 are provided through in the order. Similarly, if necessary, the shaft 21 is a hole in the frame 11, one hole in the fixed needle guide 14, one hole in the moving needle guide 13, the other hole in the fixed needle guide 14, and the other hole in the moving needle guide 13. It is provided penetrating in the order.

  On the other hand, the needle thickness adjusting nut 70 is disposed through both holes of the movable needle guide 13 and the holes of the ring-shaped portion of the adjusting screw slide stopper 18. However, the plate-like portion of the end portion on the frame 11 side of the needle thickness adjusting nut 70 is disposed on the frame 11 side of the moving needle guide 13. For this reason, the plate-shaped portion of the needle thickness adjusting nut 70 comes into contact with the surface of the moving needle guide 13 on the frame 11 side so that the needle thickness adjusting nut 70 cannot slide to the tip side of the needle thickness adjusting screw 16. Composed.

  Further, a key-shaped protrusion extending in the longitudinal direction of the needle thickness adjusting nut 70 is provided on the outer surface of the needle thickness adjusting nut 70. In addition, a key groove is provided on the inner surface of the hole of the movable needle guide 13 so as to mesh with the key-shaped protruding portion of the needle thickness adjusting nut 70. On the other hand, a stepped key groove is provided on the inner surface of the hole in the ring-shaped portion of the adjusting screw slide stopper 18 so as to contact the key-shaped protruding portion of the needle thickness adjusting nut 70.

  However, the stepped surface of the adjustment screw slide stopper 18 is directed toward the distal end side of the needle thickness adjustment screw 16. Then, the key-like protruding portion of the needle thickness adjusting nut 70 can be brought into contact with the step surface of the key groove of the adjusting screw slide stopper 18. Then, the adjustment screw slide stopper 18 is sandwiched between the key-shaped protruding portion of the needle thickness adjusting nut 70 and the plate-like portion on the frame 11 side of the moving needle guide 13. Further, the plate-like portion on the frame 11 side of the moving needle guide 13 is sandwiched between the plate-like portion on the frame 11 side end portion of the adjustment screw slide stopper 18 and the needle thickness adjusting nut 70. As a result, the adjustment screw slide stopper 18, the moving needle guide 13, and the needle thickness adjustment nut 70 are integrated.

  Further, the needle thickness adjusting screw 16 is provided with a disk-like convex portion coaxially. Then, the disc-shaped convex portion of the needle thickness adjusting screw 16 is sandwiched between the frame 11 and the fixed needle guide 14 and fixed so that the needle thickness adjusting screw 16 does not move in the axial direction.

  Accordingly, when the needle thickness adjusting screw 16 is rotated to move the needle thickness adjusting nut 70 to the head 16a side of the needle thickness adjusting screw 16, the moving needle guide 13 is fixed to the frame 11 side together with the adjusting screw slide stopper 18. The needle guide 14 is pressed against the inner surface. Conversely, when the needle thickness adjusting screw 16 is rotated to move the needle thickness adjusting nut 70 to the distal end side of the needle thickness adjusting screw 16, the moving needle guide 13 is fixed to the frame 11 side together with the adjusting screw slide stopper 18. The needle guide 14 is pulled away from the inner surface. In this manner, the distance between the moving needle guide 13 and the fixed needle guide 14 is adjusted by the rotation of the needle thickness adjusting screw 16, and the puncture needle 17 is held appropriately by the moving needle guide 13 and the fixed needle guide 14. Can be clamped with force.

  29 is a perspective view showing an example of the needle thickness adjusting nut 70 in the puncture adapter 10D shown in FIG. 26, FIG. 30 is a longitudinal sectional view of the needle thickness adjusting nut 70 shown in FIG. 29, and FIG. It is a left view of the needle thickness adjustment nut 70 shown.

  As shown in FIG. 29, FIG. 30, and FIG. 31, the needle thickness adjusting nut 70 is formed in a cylindrical shape and is provided with a female screw therein. One end of the needle thickness adjusting nut 70 is provided with a plate-like portion (plate-like portion 70a), and the plate-like portion 70a is provided with a through hole 70b for the shaft 21. In addition, a key-like key-like protrusion 70 c extending in the longitudinal direction is provided on the outer surface of the needle thickness adjusting nut 70.

  32 is a front view of the moving needle guide 13 in the puncture adapter 10D shown in FIG. 26, and FIG. 33 is a cross-sectional view taken along the line II of the moving needle guide 13 shown in FIG.

  As shown in FIGS. 32 and 33, the moving needle guide 13 has a thick plate-like portion (thick plate-like portion 13a) for holding the puncture needle 17 and a through hole for inserting the needle thickness adjusting screw 16. 13b and a plate-like portion 13c having a U-shaped cross section provided at two locations on a straight line. The plate-like portion 13c having a U-shaped cross section is provided with two through holes 13e for inserting the shaft 21 on a straight line.

  In addition, a key groove 13 f that meshes with the key-shaped protrusion 70 c of the needle thickness adjusting nut 70 is provided on the inner surface of the through hole 13 b for inserting the needle thickness adjusting screw 16.

  34 is a perspective view of the adjustment screw slide stopper 18 in the puncture adapter 10D shown in FIG. 26, FIG. 35 is a front view of the adjustment screw slide stopper 18 shown in FIG. 34, and FIG. 36 is a view of the adjustment screw slide stopper 18 shown in FIG. It is JJ sectional drawing.

  As shown in FIGS. 34, 35, and 36, the adjustment screw slide stopper 18 has a ring-shaped portion 18d and a lever 18c. A hole 18e for inserting the needle thickness adjusting screw 16 is provided in the ring-shaped portion 18d, and the inner surface of the hole 18e can be brought into contact with the key-shaped protruding portion 70c of the needle thickness adjusting nut 70. An attached key groove 18f is provided. However, the step 18g is provided only in a part of the key groove 18f, and the step 18g is not provided in the remaining key groove 18f.

  Accordingly, if the surface formed by the step 18g in the key groove 18f of the adjustment screw slide stopper 18 is brought into contact with the key-shaped protrusion 70c of the needle thickness adjustment nut 70, the needle thickness adjustment nut of the adjustment screw slide stopper 18 is brought into contact. Movement in the longitudinal direction with respect to 70 can be suppressed. That is, the needle thickness adjusting nut 70, the adjusting screw slide stopper 18, and the moving needle guide 13 can be integrated.

  On the other hand, the adjustment screw slide stopper 18 can be slid by pushing the lever 18c of the adjustment screw slide stopper 18 and rotating it around the axis of the needle thickness adjustment screw 16. Then, the key-like protrusion 70c of the needle thickness adjusting nut 70 is disposed in a portion where there is no step 18g in the key groove 18f of the adjusting screw slide stopper 18. Accordingly, the adjustment screw slide stopper 18 can be moved in the longitudinal direction with respect to the needle thickness adjustment nut 70. Thereby, the movable needle guide 13 can be freely pulled away from the inner surface of the fixed needle guide 14 on the frame 11 side together with the adjustment screw slide stopper 18.

  That is, the adjustment screw slide stopper 18 has a function of attaching and detaching the moving needle guide 13 to and from the needle thickness adjusting nut 70 and controlling transmission of the rotational power of the needle thickness adjusting screw 16 to the moving needle guide 13. In other words, when the stopper function of the adjustment screw slide stopper 18 is enabled, the needle thickness adjustment screw 16 can be rotated to move the movable needle guide 13 in parallel and pinch the puncture needle 17. On the contrary, when the stopper function of the adjustment screw slide stopper 18 is released, it is possible to easily release the puncture needle 17 by freely sliding the movable needle guide 13 regardless of the rotation of the needle thickness adjustment screw 16. Become.

  Therefore, according to the puncture adapter 10D, in addition to the same effect as the puncture adapter 10 shown in FIG. 1, the movable needle guide 13 is translated without causing the head 16a of the needle thickness adjusting screw 16 to protrude from the frame 11, and the puncture needle. Since 17 can be released, the size including the drive range of the puncture adapter 10D can be further reduced.

  In addition, you may comprise combining the component and function of the puncture adapter 10,10A, 10B, 10C, 10D in each above embodiment. Conversely, as long as at least the movable needle guide 13 is translated to release the puncture needle 17, the components and functions of the puncture adapters 10, 10A, 10B, 10C, and 10D may be omitted. Good.

  Alternatively, the puncture adapters 10, 10A, 10B, 10C, and 10D may be configured so that the puncture needle 17 can be pinched or released by arranging two needle guides facing each other and moving both needle guides in parallel.

The cross-sectional block diagram which shows 1st Embodiment of the puncture adapter which concerns on this invention. The figure which looked at the puncture adapter shown in FIG. 1 from the A direction. The right view of the puncture adapter shown in FIG. The perspective view which shows an example of the moving needle guide in the puncture adapter shown in FIG. The front view of the moving needle guide shown in FIG. BB sectional drawing of the moving needle guide shown in FIG. FIG. 6 is a top view of the fixed needle guide shown in FIG. 5. The figure which looked at the movable needle guide shown in FIG. 5 from the C direction. The perspective view of the fixed needle guide in the puncture adapter shown in FIG. The front view of the fixed needle guide shown in FIG. FIG. 11 is a top view of the fixed needle guide shown in FIG. 10. FIG. 11 is a left side view of the fixed needle guide shown in FIG. 10. The perspective view which shows an example of the adjustment screw slide stopper in the puncture adapter shown in FIG. FIG. 14 is a front view of the adjustment screw slide stopper shown in FIG. 13. The left view of the adjustment screw slide stopper shown in FIG. The bottom view of the adjustment screw slide stopper shown in FIG. The schematic block diagram of the ultrasonic diagnosing device which fixed the puncture needle to the ultrasonic probe via the puncture adapter shown in FIG. The cross-sectional block diagram which shows 2nd Embodiment of the puncture adapter which concerns on this invention. The figure which looked at the puncture adapter shown in FIG. 18 from E direction. Sectional block diagram which shows 3rd Embodiment of the puncture adapter which concerns on this invention. The figure which looked at the puncture adapter shown in FIG. 20 from the F direction. The right view of the puncture adapter shown in FIG. The figure for demonstrating the fixing method of the needle thickness adjustment screw by the moving needle guide fixing screw in the puncture adapter shown in FIG. Sectional block diagram which shows 4th Embodiment of the puncture adapter which concerns on this invention. The figure which looked at the puncture adapter shown in FIG. 24 from the G direction. Sectional block diagram which shows 5th Embodiment of the puncture adapter which concerns on this invention. The figure which looked at the puncture adapter shown in FIG. 26 from the H direction. The right view of the puncture adapter shown in FIG. The perspective view which shows an example of the needle thickness adjustment nut in the puncture adapter shown in FIG. The longitudinal cross-sectional view of the needle thickness adjustment nut shown in FIG. The left view of the needle thickness adjustment nut shown in FIG. The front view of the moving needle guide in the puncture adapter shown in FIG. FIG. 33 is a cross-sectional view of the moving needle guide shown in FIG. 32 taken along the line II. The perspective view of the adjustment screw slide stopper in the puncture adapter shown in FIG. The front view of the adjustment screw slide stopper shown in FIG. FIG. 36 is a JJ sectional view of the adjustment screw slide stopper shown in FIG. 35. The front view which shows the state which fixed the puncture needle to the ultrasonic probe using the conventional puncture adapter. The side view of the conventional puncture adapter shown in FIG. Sectional drawing which simplified and showed the needle thickness adjustment mechanism in the conventional puncture adapter shown in FIG. FIG. 38 is a cross-sectional view schematically showing a needle release mechanism in the conventional puncture adapter shown in FIG. 37.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Puncture adapter 2 Needle release lever 3 Needle thickness adjustment screw 4 Moving needle guide 5 Fixed needle guide 6 Probe fixing band 7 Ultrasonic probe 8 Puncture needle 9 Needle release lever fulcrum 10, 10A, 10B, 10D, 10E Puncture adapter 11 Frame 12 Probe fixing band 13 Moving needle guide 13a Thick plate portion 13b Through hole 13c Plate portion 13d Groove 13e Through hole 13f Key groove 14 Fixed needle guide 14a Thick plate portion 14b Through hole 14c Plate portion 14d Convex portion 15 Acoustic probe 16 Needle thickness adjustment screw 16a Head 17 Puncture needle 18 Adjustment screw slide stopper 18a Plate portion 18b Thick plate portion 18c Lever 18d Ring portion 18e Hole 18f Key groove 18g Step 19 Spring 20 Spring case 21 Shaft 30 Ultrasonic diagnosis Device 31 Device body 32 Electric signal transmission cable 33 Transmission / reception area 40 Reverse spring 41 Reverse spring casing 42 Sliding member 43 Reverse spring receiver 44 Needle thickness adjusting screw protruding position 50 Needle release button 50a Head 51 Moving needle guide fixing screw 52 Washers 60A, 60B Permanent magnet 61 Permanent magnet casing 70 Needle Thickness adjustment nut 70a Plate-like part 70b Through hole 70c Key-like protrusion

Claims (12)

A first needle guide;
A second needle guide facing the first needle guide;
A needle guide moving mechanism for holding and releasing the puncture needle by translating at least one of the first needle guide and the second needle guide;
A puncture adapter comprising: A first needle guide;
A second needle guide facing the first needle guide;
By moving at least one of the first needle guide and the second needle guide in parallel, the distance between the first needle guide and the second needle guide is adjusted according to the thickness of the puncture needle. A needle thickness adjustment mechanism;
While suppressing an increase in the interval between the first needle guide and the second needle guide, releasing the suppression and moving at least one of the first needle guide and the second needle guide in parallel. A needle release mechanism for releasing the puncture needle by opening an interval between the first needle guide and the second needle guide;
A puncture adapter comprising: The needle thickness adjusting mechanism includes a screw mechanism,
3. The needle release mechanism is configured to translate at least one of the first needle guide and the second needle guide fastened by the screw mechanism in a sliding manner. Puncture adapter. While the needle thickness adjustment mechanism includes a screw mechanism,
The needle release mechanism includes a slide stopper that suppresses an increase in an interval between the first needle guide and the second needle guide, and the stopper function of the slide stopper is released and the needle release mechanism is fastened by the screw mechanism. Configured to translate at least one of the first needle guide and the second needle guide in a sliding manner,
The puncture adapter according to claim 2. While the needle thickness adjusting mechanism includes a screw mechanism having a screw and a nut,
The needle release mechanism includes a slide stopper that suppresses an increase in the interval between the first needle guide and the second needle guide, and releases the stopper function of the slide stopper to release the first nut against the nut. At least one of the needle guide and the second needle guide is slidably translated,
The puncture adapter according to claim 2. While the needle thickness adjusting mechanism includes a spring mechanism that extends in a direction in which the interval between the first needle guide and the second needle guide is narrowed,
The needle release mechanism includes a needle release button that applies a force to at least one of the first needle guide and the second needle guide to translate the needle in a sliding manner, the needle release button, the first needle guide, A needle guide fixing mechanism that fixes an interval between the first needle guide and the second needle guide by fixing at least one of the second needle guides at an arbitrary position;
The puncture adapter according to claim 2. A rotation suppression mechanism that suppresses a parallel movement and a rotational movement of at least one of the first needle guide and the second needle guide in a plane perpendicular to the moving direction of the first needle guide or the second needle guide; The puncture adapter according to claim 1 or 2, wherein the puncture adapter is provided. The puncture adapter according to any one of claims 3 to 5, further comprising a reverse spring extending in a direction in which a distance between the first needle guide and the second needle guide is narrowed. The puncture adapter according to any one of claims 3 to 5, further comprising a permanent magnet that forms a magnetic force in a direction in which a distance between the first needle guide and the second needle guide is narrowed. . The puncture adapter according to any one of claims 3 to 5, further comprising a backlash suppression mechanism that applies a force to the screw mechanism and suppresses the influence of backlash. An ultrasonic probe body for transmitting and receiving ultrasonic waves to the subject; and
A puncture adapter for attaching a puncture needle to the ultrasonic probe main body,
The puncture adapter translates at least one of a first needle guide, a second needle guide opposite to the first needle guide, and the first needle guide and the second needle guide, thereby puncturing the puncture adapter. A needle guide moving mechanism for pinching and releasing the needle;
An ultrasonic probe comprising: An ultrasonic probe body for transmitting and receiving ultrasonic waves to the subject; and
A puncture adapter for attaching a puncture needle to the ultrasonic probe main body,
The puncture adapter translates at least one of the first needle guide, the second needle guide facing the first needle guide, and the first needle guide and the second needle guide. A needle thickness adjusting mechanism that adjusts an interval between the first needle guide and the second needle guide in accordance with a thickness of the puncture needle, the first needle guide, and the second needle guide; While the increase in the distance between the first needle guide and the second needle guide is canceled by releasing the inhibition and translating at least one of the first needle guide and the second needle guide. A needle release mechanism that releases the puncture needle with an interval from the guide;
An ultrasonic probe comprising:

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