JP2007130399A - Adapter for puncturing needle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adapter for a puncturing needle which carries no electric current to a metal part of the adapter for the puncturing needle even when resin coating of the puncturing treating needle is damaged. <P>SOLUTION: The adapter for the puncturing needle is mounted on an ultrasonic probe connected to an ultrasonic diagnostic apparatus for producing a morphological image inside a subject, and guides insertion of the puncturing needle into the inside of the subject. The adapter for the puncturing needle is equipped with a guide part which makes contact with the puncturing needle and guides this, and in which at least the part contacting the puncture needle is constituted of a non-conducting material, and a holder part which is constituted of a metal material and is mounted on the ultrasonic probe. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a puncture needle adapter that is attached to an ultrasonic probe (also referred to as an ultrasonic probe) of an ultrasonic diagnostic apparatus and used for insertion of a puncture needle.

  As a medical technique for inserting a puncture needle into a living body of a subject and collecting a tissue piece of the subject or injecting a drug locally into the body of the subject, ultrasonic puncture is performed. In this ultrasonic puncture operation, the ultrasonic image diagnostic apparatus performs the operation while observing the puncture target in the living body and the puncture position of the puncture needle. Inserting a puncture needle into an ultrasonic probe (also called an ultrasonic probe) of an ultrasonic diagnostic apparatus that performs observation in order to perform ultrasonic puncture observation and puncture needle insertion reliably and stably. In some cases, a puncture needle adapter having a puncture needle guide that guides the direction and position is attached and operated.

  The conventional puncture needle adapter is roughly composed of two parts, a holder part that is fixed to the body of the ultrasonic probe and a needle guide part that guides the insertion of the puncture needle that is coupled to the holder part. In view of ensuring rigidity and durability, each of these parts is generally made of a metal material. In this needle guide portion, there are proposals for convenience such as a configuration corresponding to a plurality of insertion angles, a configuration corresponding to puncture needles having different thicknesses, and a configuration corresponding to attachment / detachment of the puncture needle (for example, , See Patent Document 1).

  In recent years, a puncture (treatment) needle with a structure that is insulated by resin coating around the needle tube other than the vicinity of the needle tip is inserted into the body, and an RF wave (radio frequency) is emitted from the tip to heat the local area inside the body. There is a method to treat. When this puncture treatment needle is inserted into the local area of the patient to be treated, it is performed using the ultrasonic probe and the above-described puncture needle adapter attached thereto. However, when the puncture treatment needle is inserted into the metal needle guide portion of the puncture needle adapter, the resin coating may be damaged. When the damaged resin coating portion of the puncture treatment needle is positioned in the vicinity of the adapter guide, current may flow from the damaged portion to the puncture needle adapter, and current may flow from the puncture needle adapter to the living body surface. This leaked current may cause burns on the surface of the living body, and it is a problem to perform radio frequency heat treatment with a puncture treatment needle while using a puncture needle adapter having a needle guide portion made of a metal material was there.

In addition, in the insertion direction of the puncture needle, there are a variety of treatment sites, and it is required to insert at a wide range of insertion angles with respect to the horizontal line (vertical horizontal line of the ultrasonic radiation direction) of the ultrasonic probe. Therefore, it is required that these settings can be easily performed.
JP 2005-34273 A

  As mentioned above, in heat treatment with a puncture treatment needle coated with a resin coating, it is often the case that the puncture treatment needle is operated using a conventional metal puncture needle adapter. There is a problem that leakage current is generated from the part and sometimes causes burns to the patient or the subject. In addition, there is a great demand for a wide range of setting of the puncture puncture angle and various puncture angles can be easily set.

  The present invention has been made in view of the above problems, and provides a puncture needle adapter in which no current flows to the metal portion of the puncture needle adapter even when the resin coating of the puncture treatment needle is damaged. For the purpose.

  It is another object of the present invention to provide a puncture needle adapter capable of setting an appropriate insertion angle at a desired ultrasonic probe observation position with respect to a wide range of insertion directions of a puncture needle corresponding to various sites.

  To achieve the above object, the puncture needle adapter of the present invention is attached to an ultrasonic probe connected to an ultrasonic diagnostic apparatus that generates a morphological image inside a subject, and a puncture needle is inserted into the subject. A puncture needle adapter for guiding insertion, wherein the puncture needle is in contact with and guides the puncture needle, and at least a portion in contact with the puncture needle is made of a non-conductive material; And a holder portion attached to the sonic probe.

  Furthermore, in the puncture needle adapter of the present invention, the guide portion can be exchanged with another guide portion having a different insertion direction.

  Further, the puncture needle adapter of the present invention includes a holder part that is detachably attached to an ultrasonic probe body connected to an ultrasonic diagnostic apparatus that generates a morphological image inside the subject, and a guide that guides and holds the puncture needle. A puncture needle adapter comprising a guide base portion for supporting the guide, the guide having a fitting mechanism made of a resin material and having a plurality of grooves for guiding the puncture needle And a plurality of continuous hills that are paired with the plurality of groove bodies of the needle groove guide, the ridges pressing the puncture needle against the groove bodies. The guide base portion includes a needle groove support portion that holds the needle groove guide by the fitting mechanism, and a needle push support portion that holds the needle push guide by the fitting mechanism. When The needle groove support part and the needle push support part are provided with a hinge on a pedestal connected to the holder part, the grooves and the hills of the guides are opposed to each other so as to be opened and closed, and the opposites are closed. And an opening / closing mechanism that uses a spring body that urges it loosely.

  According to the puncture needle adapter of the present invention, it is possible to provide a puncture needle adapter in which no current flows to the metal portion of the puncture needle adapter even when the resin coating of the puncture treatment needle is broken.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

(Embodiment 1)
FIG. 1 is a perspective view in which the first embodiment of the puncture needle adapter of the present invention is attached to the ultrasonic probe main body. FIG. 1 (a) is from the upper left front and FIG. 1 (b) is from the lower right rear. It is a model perspective view. FIG. 2A is a perspective view showing the details of the configuration of the holder portion of the puncture needle adapter of FIG. 1 and the guide base portion from which the needle groove guide and the needle push guide are removed, and FIG. FIG. 5 is a schematic cross-sectional view showing a configuration of a movable body 441 provided on the adjustment screw plate 42. FIG. 3 is a schematic perspective view of the needle groove guide and the needle push guide according to the present embodiment as seen from different viewing directions. In the figure, the same parts are indicated by the same reference numerals.

  The ultrasonic probe main body 1 shown here is a complex type that scans an ultrasonic beam in an arc shape, but is not limited to this, and any scanning method such as a linear scan type or a sector scan type may be used. The puncture needle may be provided with an acoustic lens 1a at the tip, and this portion is brought into contact with the body of the subject so that an operator such as a doctor or an engineer searches for the target site in the body of the subject. It is used when performing puncture.

  As shown in FIG. 1, the configuration of the puncture needle adapter 2 of the present embodiment mainly includes a holder portion 20 that is attached so as to sandwich the ultrasonic probe main body 1 and a holder portion 20 that is attached to the holder portion 20 (hidden from the perspective direction). A guide base portion 30 connected by a hinge, a needle groove guide 60a mounted on the groove base A 41a of the needle groove support portion 40 constituting the guide base portion 30, and a push base A 51a of the needle push support portion 50. The needle push guide 70a is attached to each of the needle push guides 70a.

  As shown in FIGS. 1 and 2, the details of the configuration of the holder part 20 are attached by metal holders 21 a and 21 b so as to sandwich the body part of the ultrasonic probe main body 1. That is, the holders 21a and 21b are two attachments having a substantially band shape connected by the first hinge 23 shown in FIG. 1B, and both are processed so as to follow the outer shape of the body portion of the ultrasonic probe main body 1. Are wound around the outside of the ultrasonic probe main body 1, and the tips on the side opposite to the side on which the first hinge 23 is provided are tightened with the fixing screw 22, and the holders 21 a and 21 b are The elastic force possessed acts to sandwich the ultrasonic probe main body 1. In the state where the body portion of the ultrasonic probe main body 1 is sandwiched, a slight gap is provided between the opposed tip portions of the holders 21a and 21b, and tightened so that the gap is reduced by the screw of the fixing screw 22. Therefore, it is preferable to fix firmly. The fixing screw 22 is rotatably supported at the tip of one holder 21b, and the holder 21a, 21b is engaged by engaging the knob portion of the fixing screw 22 with the tip of the other holder 21a. It is preferable to have a configuration in which the tip portion of each is tightened.

  Further, as shown in FIG. 1B, a pedestal portion 24 protruding from the first hinge 23 is formed on the holder 21a, and the guide base portion 30 is fixed to the pedestal 24. ing. The guide base portion 30 has a needle groove support portion 40 and a needle push support portion 50, and these base portions are connected by a second hinge 33.

  The base portion of the needle pressing support portion 50 is fixed to the base 24 of the holder 21a by an appropriate means such as screwing or welding. Further, as shown in FIG. 2, the needle pressing support portion 50 is provided with a fitting step 52a in a portion protruding in the horizontal direction from the base portion, and fitting recesses 53a and 53b (fitting recesses) on the side portion thereof. 53b is provided with a stage-shaped pressing base A51a provided with a shade (not shown).

  On the other hand, the needle groove support portion 40 of the guide base portion 30 is provided with an L-shaped adjustment screw plate 42 that rises from the base portion connected to the second hinge 33 and is bent substantially horizontally at the leading end side. The adjustment screw plate 42 includes an adjustment screw 43 for moving the shaft core 431, and three cylinders 44a to 44c (the cylinder 44c is not shown behind other structures). Further, three movable bar bodies 441a to 441c (the movable bar body 441c is not shown in the shade of other structures) that slide inside the cylinders 44a to 44c are inserted.

  As shown in the schematic cross-sectional view of FIG. 2B, the end portions on the insertion side of each of the movable rod bodies 441 (ac) are end portions that are regulated so as not to fall out from the cylindrical body 44 (ac). A spring body 442 is provided to perform processing, for example, a screw head, and to lift the screw head. The other end of the movable bar 441 is fixedly connected to the upper surface of a plate-like groove base A41a provided with fitting recesses 46a, 46b (the fitting recess 46b is not shown in the shade) on the side. . The shaft core 431 moved by the adjusting screw 43 acts to push out the upper surface of the groove base A41a, and when the shaft core 431 is pulled back by the adjusting screw 43, the groove base A41a is pulled back and the end processing described above. The position of the inside of the cylindrical body 44 between the restriction position can be freely changed. The needle groove support portion 40 is provided with a groove base A41a whose position can be adjusted.

  Next, the needle groove guide 60a mounted on the groove base A41a and the needle push guide 70a mounted on the pressing base A51a will be described with reference to FIG. FIGS. 3A and 3B are perspective views of the needle groove guide 60a as viewed from above or below, respectively. FIGS. 3C and 3D are perspective views of the pressing base A 51a. Indicates.

  As shown in FIG. 3B, the needle groove guide 60a is provided with V-shaped grooves 61a and 61b for inserting at least two puncture needles, and is fitted on both sides of the upper surface 62 behind the needle groove guide 60a. Holding fins 63a and 63b each provided with convex portions 64a and 64b are provided, such as polysulfone (PSF), polyethersulfone (PES), polyetheretherketone (PEEK), or polyphenylenoxide (modified PPO). It is made of a resin having the following electrical insulation characteristics. The needle groove guide 60a is fitted into the lower surface of the groove base A41a shown in FIG. 2 with the ends of the pinching fins 63a and 63b open and closed, and is brought into close contact with the upper surface 62. At this time, the fitting convex portions 64a and 64b of the needle groove guide 60a are fitted into the fitting concave portions 46a and 46b (the fitting concave portion 46b is not shown in the shade) of the groove base A41a, and the groove The base A41a and the needle groove guide 60a are firmly joined to each other.

  On the other hand, the needle pressing guide 70a is provided with the same number of needle pressing hill bodies 71a, 71b as the V-shaped grooves of the needle groove guide 60a as shown in FIG. Are provided with sandwiching fins 73a and 73b having fitting protrusions 74a and 74b, respectively, and polysulfone (PSF), polyethersulfone (PES), polyetheretherketone (PEEK), or polyphenylenoside ( It is formed of a resin having electrical insulation characteristics such as modified PPO). Then, the needle pressing guide 70a is fitted to the upper surface of the pressing base A 51a shown in FIG. 2 with the end portions of the holding fins 73a and 73b being opened and closed, and is brought into close contact with the lower surface 72. At this time, the fitting convex portions 74a and 74b of the needle pushing guide 70a are fitted into the fitting concave portions 53a and 53b (the fitting concave portion 53b is not shown in the shade) of the pressing base A 51a so as to be pushed. The base A51a and the needle push guide 70a are firmly joined to each other.

  Further, as shown in FIG. 1, the second groove 33 connecting the needle groove support portion 40 and the needle push support portion 50 is interposed with a spring (not shown). The pressing force is normally applied so that the needle groove guide 60a is urged toward the needle pressing guide 70a side of the needle pressing support portion 50. The needle groove guide 60a and the needle push guide 70a can be attached and detached by operating the needle attachment / detachment lever 25 and the needle groove guide 60a of the needle groove support portion 40 against the biasing force of the spring interposed in the second hinge 33 portion. This is performed in a state where the bonding of the needle pressing guide 70a of the needle pressing support portion 50 is released. In order to detach the needle groove guide 60a or the needle push guide 70a, the ends of the holding fins 63a and 63b or the holding fins 73a and 73b are opened and adjusted to remove the engagement with the fitting recess 46a or the fitting recess 53a. It goes without saying that you can do it.

  Further, several pairs of needle groove guides 60a and needle push guides 70a having different directions (insertion angles) of the plurality of groove bodies provided in the pair of needle groove guides 60a and needle push guides 70a are sandwiched and fitted. In the case where the mating protrusions are provided in the same manner and are aligned in advance and correspond to the insertion angles of different puncture needles, a pair of a needle groove guide 60a and a needle push guide 70a each having a groove body at a desired angle or an angle close thereto is provided. Needless to say, it can be selected and installed.

  Next, the operation and operation of the puncture needle adapter of this embodiment will be described.

  First, the ultrasonic probe main body 1 is attached to the body of the puncture needle adapter 2 so as to be sandwiched between the holders 21a and 21b of the puncture needle adapter 2, and the distal ends of the holders 21a and 21b are engaged to be firmly fixed by the fixing screws 22. Fix it. In this way, with the puncture needle adapter 2 attached to the ultrasonic probe main body 1, the operator operates the puncture needle adapter 2 while observing the ultrasonic image of the subject, and the puncture target site (for example, heating) Check the affected area).

  When the puncture target site is determined, the puncture needle to be used or the puncture treatment needle of the heat treatment antenna is determined based on the condition of the affected part, and the adjustment groove 43 is formed on the needle groove guide 60a so as to match the thickness. The distance between the V-shaped grooves 61a and 61b and the needle-pressing hill bodies 71a and 71b formed in the needle-pressing guide 70a is adjusted. Thereafter, the puncture needle is inserted into a desired V-shaped groove formed in the needle groove guide 60a, and a predetermined portion of the puncture needle is inserted toward the target site by observing the projected ultrasonic image. Make sure. If it is confirmed that the tip of the puncture needle has reached the desired position (affected part), the operation procedure for inserting the puncture needle is completed.

  If the desired puncture needle can be inserted, treatment with the inserted puncture needle, that is, treatment such as tissue suction, chemical injection, or heat treatment is performed. When performing this operation while observing an ultrasonic image of the affected area of the target, the ultrasonic probe main body 2 in a state where the puncture needle is held between the needle groove guide 60a and the needle push guide 70a of the puncture needle adapter 2, If an ultrasonic tomographic image is taken, an image of the affected area can be observed together with the image of the puncture needle. For example, when a puncture treatment needle that radiates RF waves (radio frequency) is inserted and the treatment proceeds while observing the progress of the heat treatment, the coating that electrically insulates the puncture treatment needle is partially damaged. However, the puncture treatment needle is held by the puncture needle adapter by being held by the needle groove guide 60a and the needle push guide 70a formed of an electrically insulating resin, and the high-frequency current for heating is generated by the puncture needle adapter. There is no leakage to other metal parts, and heat treatment can be performed without unintended heating.

  On the other hand, in the case where a long-time operation is performed, when the observation by the ultrasonic image is interrupted and only the puncture (treatment) needle is placed and the operation is continued, the operator uses his / her finger to move the tip of the needle attachment / detachment lever 25. By pushing down the portion toward the holder 21a, the needle groove guide 60a of the needle groove support portion 40 and the needle push guide 70a of the needle push support portion 50 against the biasing force of the spring interposed in the second hinge 33 portion. It can be rotated so that the fitting is released, and the treatment can be performed by detaching from the puncture needle adapter 2 and the ultrasonic probe main body 1 while the subject is pierced with the puncture needle. When the treatment is completed and the situation is observed again by an ultrasonic image, the needle attachment / detachment lever 25 is operated to open the fitting between the needle groove guide 60a and the needle push guide 70a, and the needle groove guide 60a is opened. The ultrasonic probe main body 1 is positioned together with the puncture needle adapter 2 so that the puncture (treatment) needle placed in the groove body is accommodated, and the needle groove guide 60a and the needle push guide 70a are closed to return to the original observation position. Can do.

  Further, the portions of the needle groove guide and the needle push guide that touch the puncture needle of the present embodiment are detachably attached by the holding fins 63a and 63b or the holding fins 73a and 73b. 6 (a), (b), (c) and FIGS. 6 (d), (e), (f), for example, FIG. It is preferable that a needle groove guide 60 ′ and a needle push guide 70 ′ having various different puncture angles are provided in advance as shown in FIG. By selecting a needle groove guide and a needle push guide of a desired angle from a plurality of sets of these guides prepared in advance, and attaching them to the needle groove support part 40 or the needle push support part 50 The setting of the insertion angle can be easily changed.

  According to the present embodiment, in the use of the puncture needle for RF heat treatment, even if the electrically insulating coating of the puncture needle is broken, the leakage current to the portion of the puncture needle adapter is prevented and the treatment is performed. It is possible to provide a puncture needle adapter that does not cause abnormal heating that is not intended for a person.

  Furthermore, a needle groove guide and a needle push guide with different puncture angles are prepared and placed in advance, and a set of a needle groove guide and a needle push guide with a desired insertion angle is selected from these, and these are attached. There is also an advantage that the insertion angle of the puncture needle can be easily changed.

  In addition, each of the needle groove guide and the needle push guide of the present embodiment has a simple shape and can be supplied in large quantities at a low price as a resin molded product. Therefore, each of these needle groove guides and needle push guides can be handled as disposable products, and the cost of complicated and special disinfection / sterilization treatment can be reduced. Furthermore, there is also an advantage of providing a medical instrument that avoids durability deterioration due to this treatment.

(Embodiment 2)
FIG. 4 is a perspective view in which the puncture needle adapter of the second embodiment of the present invention is attached to the ultrasonic probe main body, and FIG. 4 (a) is a puncture in which the needle groove guide and the needle push guide are more firmly attached. FIG. 2 is a schematic perspective view of the needle adapter, and FIG. 2B is a perspective view showing details of the configuration of the holder portion of the puncture needle adapter of the present embodiment, and the guide base portion from which the needle groove guide and the needle push guide are removed. . FIG. 5 is a schematic perspective view of the needle groove guide and the needle push guide according to the present embodiment as seen from different viewing directions. 4 and 5, like FIG. 1 to FIG. 3, like parts are denoted by like reference numerals.

  The configuration of the puncture needle adapter of this embodiment is the same as that of the first embodiment described above, and the guide connected to the holder portion 20 by the first hinge 23 (see FIG. 1B). It consists of a base part 30. The guide base portion 30 of the present embodiment has a groove base B41b and a needle groove guide 60b attached to the groove base B41b, and a push base B51b and a needle push guide 70b attached to the same as the first embodiment. Except for the difference, the configuration is the same.

  As shown in FIG. 4 (b), the groove base B41b of the present embodiment has three cylinders 44a to 44c (the cylinder 44c is another structure provided in the adjustment screw plate 42 of the needle groove support portion 40. 3 movable rod bodies 441a to 441c (movable rod body 441c are not shown in the shade of other structures) that are slid in the interior of the interior of each of the movable body. A plate-like mounting base having a base convex plate 47a on the side is formed. As shown in FIG. 4B, the pushing base B51b of the present embodiment is fitted in a portion protruding in the horizontal direction from the base 24 connected by the second hinge 33 (see FIG. 1B). A mating step 52a is provided, and a stage-like mounting base having a base convex plate 55a is formed on the side thereof.

  The needle groove guide 60b mounted on the groove base B41b is provided with at least two V-shaped grooves 61a and 61b for inserting a puncture needle as shown in FIG. A guide convex plate 66 is provided at a side end portion of the upper surface of the guide. The guide convex plate 66 is provided with a fixing lever 65 having a fitting frame 65a. The guide convex plate 66 and the base convex plate 47a of the groove base B41b are aligned, the upper surface of the needle groove guide 60b and the lower surface of the groove base B41b are brought into close contact with each other, and the both convex plates are placed in the frame of the fitting frame 65a. The fixing lever 65 is tilted toward the guide convex plate 66 so as to fit the needle groove guide 60b. The needle groove guide 60b is formed of a resin having electrical insulation characteristics such as polysulfone (PSF), polyethersulfone (PES), polyetheretherketone (PEEK), or polyphenylenoxide (modified PPO). The

  On the other hand, the needle pushing guide 70b mounted on the pushing base B51b is provided with the same number of needle pushing hill bodies 71a and 71b as the V-shaped grooves of the needle groove guide 60b as shown in FIG. A guide convex plate 76 is provided at the side end of the lower surface behind the guide. Similarly to the guide convex plate 66 of the needle groove guide, the guide convex plate 76 is provided with a fixing lever 75 having a fitting frame 75a. The guide convex plate 76 and the base convex plate 55a of the pressing base B51b are aligned, the lower surface of the needle pressing guide 70b and the fitting step 52a on the upper surface of the pressing base B51b are brought into close contact, and the frame of the fitting frame 75a. The fixing lever 75 is tilted toward the guide convex plate 76 so that both convex plates are fitted therein, and the needle pushing guide 70b is attached. The needle push guide 70b is also formed of a resin having the same electrical insulation characteristics as the needle groove guide 60b.

  According to this embodiment, even in the use of the RF heat treatment puncture needle in which the electrical insulation coating is broken, the electrical insulation is made by the resin needle groove guide and the needle push guide that support the puncture needle, It is possible to provide a puncture needle adapter that prevents leakage current to the puncture needle adapter portion and does not cause the patient to be abnormally heated.

  Further, in this embodiment, the portion of the needle groove guide and the needle push guide that touches the puncture needle is detachably attached, and the attachment or removal can be easily performed by the operation of the fixing lever including the fitting frame, In the change of the puncture angle during the treatment, it is possible to easily change the pair of these guides having various puncture angles prepared in advance.

1 is a schematic perspective view showing a first embodiment of the present invention. The perspective view of the holder part and guide base part in 1st Embodiment, and a schematic cross section which shows the structure of a movable body. FIG. 3 is a schematic perspective view of a needle groove guide and a needle push guide according to the first embodiment. The model perspective view which shows the 2nd Embodiment of this invention. The model perspective view of the needle groove guide and needle pushing guide in 2nd Embodiment. FIG. 4 is a schematic perspective view of a needle groove guide and a needle push guide having different puncture angles in which the holding fins are exactly the same in the embodiment.

Explanation of symbols

1 ... ultrasonic probe body,
1a ... acoustic lens,
2 ... Puncture needle adapter,
20 ... Holder part,
21a, 21b ... holder,
22: Fixing screw,
23... First hinge,
24 ... pedestal,
25 ... Needle attaching / detaching lever,
30 ... Guide base part,
33 ... second hinge,
40: Needle groove support,
41a ... groove base A,
41b ... Base B for groove,
42 ... adjustment screw plate,
43 ... Adjustment screw,
44a, 44b, 44c ... cylinders,
46a, 53a ... fitting recess,
47a, 55a ... base relief,
50 ... Needle push support part,
51a ... Pushing base A,
51b ... Base B for pushing,
52a ... mating step,
60a, 60b ... Needle groove guide,
61a, 61b ... V-shaped groove,
62 ... upper surface,
63a, 63b, 73a, 73b ... clamping fins,
64a, 64b, 74a, 74b ... fitting protrusion,
65, 75 ... fixed lever,
65a ... Fitting frame,
66 ... Guide convex plate 70a, 70b ... Needle pushing guide,
71a, 71b ... hill body,
72 ... lower surface,
431 ... Axle 441a, 441b ... Movable rod,
442 ... Spring body.

Claims (3)

A puncture needle adapter that is attached to an ultrasonic probe connected to an ultrasonic diagnostic apparatus that generates a morphological image inside a subject and guides the insertion of a puncture needle into the subject,
A guide portion that is in contact with and guides the puncture needle, and at least a portion that contacts the puncture needle is made of a non-conductive material;
A holder made of a metal material and attached to the ultrasonic probe;
A puncture needle adapter comprising:   The puncture needle adapter according to claim 1, wherein the guide part is replaceable with another guide part having a different insertion direction. A holder part that is detachably attached to an ultrasonic probe main body connected to an ultrasonic diagnostic apparatus that generates a morphological image inside the subject, a guide that guides and holds a puncture needle, and a guide base part that supports the guide A puncture needle adapter comprising:
The guide is formed of a resin material having a fitting mechanism, and a needle groove guide including a plurality of groove bodies for guiding a puncture needle;
Similarly, it is formed with a fitting mechanism made of a resin material, and includes a plurality of continuous hills that are paired with the plurality of groove bodies of the needle groove guide, and this hill presses and holds the puncture needle against the groove body A needle push guide that
The guide base portion includes a needle groove support portion that holds the needle groove guide by the fitting mechanism;
A needle push support portion for holding the needle push guide by the fitting mechanism;
The needle groove support part and the needle push support part are provided with a hinge on a pedestal connected to the holder part, the grooves and the hills of the guides are opposed to each other so as to be opened and closed, and the opposites are closed. An opening and closing mechanism with a spring body that biases loosely,
A puncture needle adapter, comprising: