JP4866597B2 - Puncture needle attachment - Google Patents

Puncture needle attachment Download PDF

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JP4866597B2
JP4866597B2 JP2005359912A JP2005359912A JP4866597B2 JP 4866597 B2 JP4866597 B2 JP 4866597B2 JP 2005359912 A JP2005359912 A JP 2005359912A JP 2005359912 A JP2005359912 A JP 2005359912A JP 4866597 B2 JP4866597 B2 JP 4866597B2
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puncture needle
attachment
guide member
subject
ultrasonic
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JP2007159803A (en
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慎 深田
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Hitachi Healthcare Manufacturing Ltd
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Hitachi Medical Corp
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本発明は穿刺針アタッチメントに係り、特に、穿刺針が被検体内のどこまで挿入されたかが容易に検知可能であると伴に、穿刺針を被検体内へ挿入する時に折れ曲がることを防ぐことが可能な穿刺針アタッチメントに関する。
The present invention relates to a puncture needle attachment , and in particular, it is possible to easily detect how far the puncture needle has been inserted into the subject, and to prevent bending when the puncture needle is inserted into the subject. The present invention relates to a puncture needle attachment .

超音波診断装置は超音波パルス反射法により、生体内の軟組織の断層像を無侵襲に得る医用画像診断装置である。この超音波診断装置は、他の医用画像診断装置に比べ、小型で安価であり、X線などの被曝がなく安全性が高く、また血流イメージングが可能である等の特徴を有していて、泌尿器科や産婦人科などで広く利用されている。   The ultrasonic diagnostic apparatus is a medical image diagnostic apparatus that non-invasively obtains a tomographic image of soft tissue in a living body by an ultrasonic pulse reflection method. This ultrasonic diagnostic apparatus is smaller and less expensive than other medical image diagnostic apparatuses, has high safety without exposure to X-rays, and has features such as blood flow imaging. Widely used in urology and obstetrics and gynecology.

超音波診断装置を用いて行う診断技法の一つに、超音波穿刺術がある。この超音波穿刺術は、超音波像を医師が観察しながら穿刺針を被検体中に刺し込み、被検体の病変部の組織を得る手法である(例えば、特許文献1参照。)。
実開平5-112号公報 One of diagnostic techniques performed using an ultrasonic diagnostic apparatus is ultrasonic puncture. This ultrasonic puncture technique is a technique in which a puncture needle is inserted into a subject while a doctor observes an ultrasonic image to obtain a lesioned tissue of the subject (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 5-112

本発明者らは、上記従来技術を検討した結果、以下の問題点を見出した。
すなわち、穿刺針と超音波診断装置を用いて行う超音波穿刺術では、被検体の内部のどこまで穿刺針が挿入されたかを、超音波像上で観察して確認することは、穿刺針が細い場合困難だった。また、被検体の内部の固い組織へ穿刺針を挿入しようとすると、穿刺針が折れ曲がるおそれがあった。 As a result of studying the above prior art, the present inventors have found the following problems.
That is, in ultrasonic puncture performed using a puncture needle and an ultrasonic diagnostic apparatus, it is difficult to observe on an ultrasound image and confirm how far the puncture needle has been inserted inside the subject. If it was difficult. In addition, when trying to insert the puncture needle into a hard tissue inside the subject, the puncture needle may be bent.

本発明の目的は、穿刺針が被検体内のどこまで挿入されたかが容易に検知可能であると伴に、穿刺針を被検体内へ挿入する時に折れ曲がることを防ぐことが可能な穿刺具アタッチメントを提供することにある。
An object of the present invention is to provide a puncture tool attachment capable of easily detecting how far a puncture needle has been inserted into a subject and preventing bending when the puncture needle is inserted into a subject. There is to do.

本発明の穿刺針アタッチメントは、超音波探触子(1)に取付部(6c)によって取り付けられ、穿刺針(11)の被検体内への挿入をガイドする穿刺針アタッチメント(6b)であって、前記穿刺針(11)の外周に設けられる突起(12)に、前記穿刺針(11)を通す貫通孔の壁面を係合するために該壁面にらせん溝(17)が形成され、前記穿刺針アタッチメント(6b)は、ガイド部材(6d)と、ガイド部材(6e)と、前記ガイド部材(6d)と前記ガイド部材(6e)をバネ力により合わさるように合体するバネ付きヒンジ(18)と、前記ガイド部材(6e)に設けられ操作者によって力を加えられることで前記穿刺針(11)を前記らせん溝(17)に入れるための空きを形成するためのレバー(19)と、を備えたこと特徴としている。
The puncture needle attachment of the present invention is a puncture needle attachment (6b) that is attached to the ultrasonic probe (1) by an attachment portion (6c) and guides insertion of the puncture needle (11) into a subject. the the projection provided on the outer periphery of the puncture needle (11) (12), spiral grooves (17) are formed on the wall surface for engaging a wall surface of the through-hole through which the puncture needle (11), the biopsy The needle attachment (6b) includes a guide member (6d), a guide member (6e), and a spring-equipped hinge (18) that combines the guide member (6d) and the guide member (6e) so as to be combined by a spring force. A lever (19) provided in the guide member (6e) for forming a space for the insertion of the puncture needle (11) into the spiral groove (17) by applying a force by an operator. It is characterized by that.

本発明によれば、穿刺針が被検体内のどこまで挿入されたかが容易に検知可能であると伴に、穿刺針を被検体内へ挿入する時に折れ曲がることを防ぐことが可能な穿刺針アタッチメントが提供される。


According to the present invention, there is provided a puncture needle attachment capable of easily detecting how far the puncture needle has been inserted into the subject and preventing bending when the puncture needle is inserted into the subject. Is done.


以下、本発明に用いられる穿刺用超音波診断装置のシステム構成を図1により説明する。図1において、1は超音波を送受信するための超音波探触子、2は数mW〜十数mW程度の診断用パワーの駆動信号を超音波探触子1に供給して超音波探触子1内の振動子を励振すると共に、振動子が受信したエコー信号に増幅等の信号処理を施し、次に説明する画像形成部3へ出力する送受信部、3は送受信部2より送られてきたエコー信号に基づき、Bモード断層画像等の診断画像を生成するための画像形成部、4は画像形成部3によって生成された診断画像を表示するための表示部、5は送受信部2と画像形成部3と表示部4を制御する制御部である。   Hereinafter, the system configuration of the ultrasonic diagnostic apparatus for puncture used in the present invention will be described with reference to FIG. In FIG. 1, 1 is an ultrasonic probe for transmitting and receiving ultrasonic waves, 2 is an ultrasonic probe that supplies a drive signal of a diagnostic power of several mW to several tens of mW to the ultrasonic probe 1. The transmitter / receiver 3 excites the transducer in the child 1 and performs signal processing such as amplification on the echo signal received by the transducer and outputs it to the image forming unit 3 to be described next. An image forming unit for generating a diagnostic image such as a B-mode tomographic image based on the echo signal, 4 is a display unit for displaying a diagnostic image generated by the image forming unit 3, and 5 is an image with the transmitting / receiving unit 2 A control unit that controls the forming unit 3 and the display unit 4.

次に図2は、本発明の実施例1に係る超音波探触子用穿刺針及びその支持具(穿刺針アタッチメント)を超音波探触子に装着した場合の外観図を示したものである。図2において、6は穿刺針アタッチメントであり、超音波探触子1の外周に着脱可能に設けられたリング状のアタッチメント取付具6aと、アタッチメント取付具6aに脱着可能に取り付けられ穿刺針を中に通し、穿刺針を所定方向へガイドするためのアタッチメント6bから成る。   Next, FIG. 2 shows an external view when the ultrasonic probe puncture needle and its support (puncture needle attachment) according to Embodiment 1 of the present invention are attached to the ultrasonic probe. . In FIG. 2, 6 is a puncture needle attachment, which is a ring-shaped attachment fixture 6a detachably provided on the outer periphery of the ultrasonic probe 1, and a puncture needle that is detachably attached to the attachment fixture 6a. And an attachment 6b for guiding the puncture needle in a predetermined direction.

次に図3は、本発明の実施例1に係る穿刺針アタッチメント6等の詳細を拡大して示したものであり、図3(a)は、穿刺針アタッチメント6の構造を示す図、図3(b)は図3(a)におけるA−A’矢視図である。ただし、図3(b)は図3(a)におけるアタッチメント6bがアタッチメント取付具6aの取付部6cに矢印B或いはCに従って嵌め合わせられた後の線A−A’に沿った断面図(あるいは図2における線A−A’に沿った断面)を示したものである。以下、図3における各構成要素を順に説明する。   Next, FIG. 3 is an enlarged view of details of the puncture needle attachment 6 and the like according to the first embodiment of the present invention, FIG. 3 (a) is a diagram showing the structure of the puncture needle attachment 6, FIG. (b) is an AA ′ arrow view in FIG. 3 (a). However, FIG. 3 (b) is a cross-sectional view along the line AA ′ after the attachment 6b in FIG. 3 (a) is fitted to the attachment portion 6c of the attachment fixture 6a according to the arrow B or C (or FIG. 2 is a sectional view taken along line AA ′ in FIG. Hereinafter, each component in FIG. 3 will be described in order.

先ず、図3(a)における取付部6cは、断面が図3(b)において6cの斜線で示したように、逆T字形嵌合溝6fが内部に設けられている。アタッチメント6bにはT字形の嵌合突起8が設けられていて、嵌合突起8を嵌合溝部6f内に滑らせることにより、図3(b)のように取付部6cとアタッチメント6bが接続されるようになっている。取付部6cがアタッチメント6bの最適な位置に嵌め合わせられると、図3(a)において9で示された孔にツマミネジ10を貫通させることにより、アタッチメント6bが取付部6cから外れないようにすることができる。   First, the mounting portion 6c in FIG. 3 (a) is provided with an inverted T-shaped fitting groove 6f in the inside thereof, as shown by the oblique line 6c in FIG. 3 (b). The attachment 6b is provided with a T-shaped fitting protrusion 8. By sliding the fitting protrusion 8 into the fitting groove 6f, the attachment portion 6c and the attachment 6b are connected as shown in FIG. It has become so. When the mounting portion 6c is fitted to the optimal position of the attachment 6b, the attachment screw 6b is prevented from being detached from the mounting portion 6c by passing the knob screw 10 through the hole indicated by 9 in FIG. Can do.

11は穿刺針であり、穿刺針11の外周には途中に突起12が設けられている。また、穿刺針11は根元(被検体へ穿刺針を挿入する方向13に対して反対側)に嵌合溝15が設けられていて、そこに図3(a)のように針保持部16が嵌め合わされている。そのため、穿刺針11が後述のように挿入の際に回転されても、操作者は針保持部16を持つことにより適切に支えることができる。穿刺針アタッチメント6bの穿刺針11に接する面には、らせん溝17が設けられている。そのため、操作者が穿刺針11の針保持部15を保持して被検体へ挿入する方向13へ押圧すると、穿刺針11は回転しながら被検体へ挿入されるようになる。図3(a)における矢印B方向が穿刺針11を被検体の方へ挿入する方向であり、矢印C方向は穿刺針11を被検体に対して抜き去る方向である。   Reference numeral 11 denotes a puncture needle, and a protrusion 12 is provided on the outer periphery of the puncture needle 11 in the middle. Further, the puncture needle 11 is provided with a fitting groove 15 at the base (opposite side to the direction 13 in which the puncture needle is inserted into the subject), and the needle holding portion 16 is provided there as shown in FIG. It is fitted. Therefore, even if the puncture needle 11 is rotated during insertion as will be described later, the operator can appropriately support the needle holding portion 16. A spiral groove 17 is provided on the surface of the puncture needle attachment 6b in contact with the puncture needle 11. Therefore, when the operator holds the needle holding portion 15 of the puncture needle 11 and presses it in the direction 13 for insertion into the subject, the puncture needle 11 is inserted into the subject while rotating. The direction of arrow B in FIG. 3 (a) is the direction in which the puncture needle 11 is inserted toward the subject, and the direction of arrow C is the direction in which the puncture needle 11 is removed from the subject.

アタッチメント6bはガイド部材6dとガイド部材6eより成っていて、それらはバネ付きヒンジ18により接続されている。また、ガイド部材6eにはレバー19が設けられている。ガイド部材6dとガイド部材６eはバネ付きヒンジ18のバネ力により合わさり合体するようになっている。そして、操作者がレバー19に力を加えることにより、ガイド部材6dとガイド部材6eの間が空き(6e’で示された位置にガイド部材6eが配置される。)、その中に穿刺針11を入れらせん溝17の中に固定できるようになっている。また、本実施例では穿刺針11の先端付近あるいは側面が平面20に削られている。   The attachment 6b is composed of a guide member 6d and a guide member 6e, which are connected by a hinge 18 with a spring. The guide member 6e is provided with a lever 19. The guide member 6d and the guide member 6e are joined together by the spring force of the spring-equipped hinge 18. Then, when the operator applies a force to the lever 19, the space between the guide member 6d and the guide member 6e is empty (the guide member 6e is disposed at a position indicated by 6e ′), and the puncture needle 11 is placed therein. Can be fixed in the spiral groove 17. Further, in the present embodiment, the vicinity or the side surface of the puncture needle 11 is cut into the flat surface 20.

穿刺針11の先端付近の周囲に形成された平面20は、超音波の反射効率を高め、超音波断層像中における穿刺針11の先端位置を操作者が確認し易くするためにある。すなわち、従来の穿刺針の先端部分は横断面が円形の棒状をしているので、超音波が当たってもエコーが拡散してしまうので、画像上で穿刺針が認識しにくいものであったが、本実施形態では、穿刺針の先端部平面20に当たった超音波は拡散しないので、画像上で認識し易くなる。
なお、本実施形態では、穿刺針11が被検体内で回転しながら挿入されて行くので、先端部の平面20は針の周囲に複数面形成されることが望ましい。それによって、針が被検体内で進む単位距離当りのエコー反射回数が増加し、より認識し易くなる。 The plane 20 formed around the distal end of the puncture needle 11 is for enhancing the reflection efficiency of ultrasonic waves and making it easier for the operator to confirm the distal end position of the puncture needle 11 in the ultrasonic tomographic image. In other words, since the tip of the conventional puncture needle has a rod shape with a circular cross section, the echo diffuses even when it hits an ultrasonic wave, so that the puncture needle is difficult to recognize on the image. In the present embodiment, since the ultrasonic wave hitting the distal end plane 20 of the puncture needle is not diffused, it is easy to recognize on the image.
In the present embodiment, since the puncture needle 11 is inserted while rotating in the subject, it is desirable that a plurality of flat surfaces 20 at the distal end portion are formed around the needle. This increases the number of echo reflections per unit distance that the needle travels within the subject, making it easier to recognize.

次に本実施例の効果を説明する。本実施例では穿刺針の11の先端付近あるいは側面に平面20が設けられていて、穿刺針11は回転しながら被検体の内部に挿入されるので、該平面が超音波探触子により走査されている超音波により反射した際、超音波像上で光り穿刺針11が写る。そのため、どこまで穿刺針11を被検体の内部へ挿入したかを超音波像上で確認することができる。また、穿刺針11は回転しながら被検体の内部へ挿入されるのでスクリューのようになり、被検体の内部に硬い部位が存在する場合にも、穿刺針11が折れ曲がることを防ぐことができる。   Next, the effect of the present embodiment will be described. In the present embodiment, a flat surface 20 is provided near or on the side of the tip of the puncture needle 11, and the puncture needle 11 is inserted into the subject while rotating, so that the flat surface is scanned by the ultrasonic probe. When reflected by the ultrasonic wave, the puncture needle 11 is reflected on the ultrasonic image. Therefore, how far the puncture needle 11 has been inserted into the subject can be confirmed on the ultrasonic image. Further, since the puncture needle 11 is inserted into the subject while rotating, it becomes like a screw, and the puncture needle 11 can be prevented from being bent even when there is a hard part inside the subject.

本発明に用いられる穿刺用超音波診断装置のシステム構成。The system configuration | structure of the ultrasonic diagnostic apparatus for puncture used for this invention. 本発明の実施例1に係る超音波探触子用穿刺針及びその支持具を超音波探触子に装着した場合の概観図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overview diagram when an ultrasonic probe puncture needle and its support according to Embodiment 1 of the present invention are attached to an ultrasonic probe. 本発明の実施例1に係る穿刺針アタッチメント6b等の詳細を拡大して示した図。The figure which expanded and showed the details of the puncture needle attachment 6b etc. which concern on Example 1 of this invention.

符号の説明Explanation of symbols

６ｃ リング突起部、6ｄ 部分、６ｅ 部分、８ 嵌合突起、９ 孔、１０ ツマミ、１１ 穿刺針、１２ 突起、１３ 被検体に対して穿刺針１１を挿入する方向、１４ 被検体に対して穿刺針１１を抜き去る方向、１５ 嵌合溝、１６ 針保持部、１７ らせん溝、１８ ヒンジ、１９ レバー、２０ 平面   6c ring projection, 6d portion, 6e portion, 8 fitting projection, 9 holes, 10 knob, 11 puncture needle, 12 projection, 13 direction of inserting the puncture needle 11 into the subject, 14 puncture to the subject Direction to remove the needle 11, 15 fitting groove, 16 needle holder, 17 spiral groove, 18 hinge, 19 lever, 20 plane

Claims (1)

超音波探触子（１）に取付部（６ｃ）によって取り付けられ、穿刺針（１１）の被検体内への挿入をガイドする穿刺針アタッチメント（６ｂ）であって、
前記穿刺針（１１）の外周に設けられる突起（１２）に、前記穿刺針（１１）を通す貫通孔の壁面を係合するために該壁面にらせん溝（１７）が形成され、前記穿刺針アタッチメント（６ｂ）は、ガイド部材（６ｄ）と、ガイド部材（６ｅ）と、前記ガイド部材（６ｄ）と前記ガイド部材（６ｅ）をバネ力により合わさるように合体するバネ付きヒンジ（１８）と、前記ガイド部材（６ｅ）に設けられ操作者によって力を加えられることで前記穿刺針（１１）を前記らせん溝（１７）に入れるための空きを形成するためのレバー（１９）と、を備えたこと特徴とする穿刺針アタッチメント。 A puncture needle attachment (6b) attached to the ultrasonic probe (1) by an attachment portion (6c) and guiding insertion of the puncture needle (11) into the subject,
Wherein the projection provided on the outer periphery of the puncture needle (11) (12), spiral grooves (17) are formed on the wall surface for engaging a wall surface of the through-hole through which the puncture needle (11), the biopsy needle The attachment (6b) includes a guide member (6d), a guide member (6e), a hinge with spring (18) that combines the guide member (6d) and the guide member (6e) so as to be combined by a spring force, A lever (19) provided on the guide member (6e) to form a space for the insertion of the puncture needle (11) into the spiral groove (17) when force is applied by an operator. A puncture needle attachment characterized by this.
JP2005359912A 2005-12-14 2005-12-14 Puncture needle attachment Expired - Fee Related JP4866597B2 (en)

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CN111329561B (en) * 2020-03-10 2023-02-07 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 Puncture system and puncture guide method

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US5611345A (en) * 1995-04-24 1997-03-18 Hibbeln; John F. Medical instrument with improved ultrasonic visibility
JPH1133028A (en) * 1997-07-14 1999-02-09 Olympus Optical Co Ltd Puncturing system for ultrasonograph
JP2001087264A (en) * 1999-09-24 2001-04-03 Hitachi Medical Corp Ultrasonograph
JP3847606B2 (en) * 2001-11-09 2006-11-22 オリンパス株式会社 Puncture needle
JP2005137454A (en) * 2003-11-04 2005-06-02 Olympus Corp Piercing needle device

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