JPH01303136A - In-body cavity ultrasonic wave probe - Google Patents
In-body cavity ultrasonic wave probeInfo
- Publication number
- JPH01303136A JPH01303136A JP13426088A JP13426088A JPH01303136A JP H01303136 A JPH01303136 A JP H01303136A JP 13426088 A JP13426088 A JP 13426088A JP 13426088 A JP13426088 A JP 13426088A JP H01303136 A JPH01303136 A JP H01303136A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- internal
- scanning image
- external
- electrodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000523 sample Substances 0.000 title claims description 13
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 15
- 238000002604 ultrasonography Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、経直腸用として使用される体腔内超音波プロ
ーブに間するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an intracorporeal ultrasound probe used for transrectal use.
（従来の技術）
第５図は特開昭６２−１５２４４１号に開示されている
従来の体腔内超音波プローブを示す構成図である。(Prior Art) FIG. 5 is a configuration diagram showing a conventional intrabody cavity ultrasound probe disclosed in Japanese Patent Application Laid-Open No. 152441/1983.
第５図において、グローブ１は円筒状に形成された挿入
部２と、挿入部２と一体化されているホルダ一部３と、
プローブ１と超音波診断装置本体（図示せず）を電気的
に接続するケーブル４を有する。挿入部２には、第１、
第２及び第３の振動子群２ａ 、２ｂ及び２ｃが配置さ
れている。各振動子群２ａ、２ｂ及び２Ｃは挿入部２の
周面方向に所定の間隔を有して配列される複数の超音波
振動子で構成される。又、図では明らかにされていない
が、各超音波振動子には、電極が個々に接合され、電極
リード線を介してケーブル４に接続されている。ケーブ
ル４は超音波診断装置本体の送受波部（切り替え回路を
含んで構成される回路）に接続される。In FIG. 5, the glove 1 includes an insertion part 2 formed in a cylindrical shape, a holder part 3 integrated with the insertion part 2,
It has a cable 4 that electrically connects the probe 1 and the ultrasound diagnostic apparatus main body (not shown). The insertion section 2 includes a first
Second and third vibrator groups 2a, 2b and 2c are arranged. Each of the transducer groups 2a, 2b, and 2C is composed of a plurality of ultrasonic transducers arranged at predetermined intervals in the circumferential direction of the insertion section 2. Although not clearly shown in the figure, electrodes are individually bonded to each ultrasonic transducer and connected to the cable 4 via electrode lead wires. The cable 4 is connected to a wave transmitting/receiving section (a circuit including a switching circuit) of the main body of the ultrasonic diagnostic apparatus.
以上の構成において、第１、第２及び第３の振動子群２
ａ、２ｂ及び２Ｃの各超音波振動子を挿入部２の周面に
沿って順次切り替え駆動することにより、挿入部の長手
方向に垂直な面、即ち、横断面の超音波像（ラジアルス
キャン像）を複数個得ることができる。又、振動子群の
数を増やし、各振動子群の中から挿入部２の軸に平行で
、かつ、挿入部２の長手方向を示す直線上に配列される
超音波振動子を選択し、所定の順序で切り替え駆動する
ことにより、縦断面の超音波（！Ａ Ｃリニアスキャン
像）を得ることができる。In the above configuration, the first, second and third vibrator groups 2
By sequentially switching and driving the ultrasonic transducers a, 2b, and 2C along the circumferential surface of the insertion section 2, an ultrasonic image (radial scan image) of a plane perpendicular to the longitudinal direction of the insertion section, that is, a cross section is obtained. ) can be obtained. In addition, the number of transducer groups is increased, and ultrasonic transducers are selected from each transducer group that are parallel to the axis of the insertion section 2 and arranged on a straight line indicating the longitudinal direction of the insertion section 2, By switching and driving in a predetermined order, it is possible to obtain longitudinal section ultrasound (!AC linear scan image).
ところで、上記の体腔内超音波プローブにおいて、ラジ
アルスキャン像及びリニアスキャン１！Ａを任意の方向
で多数得るには、超音波振動子の数を挿入部２の周面に
きめ細かく配置する必要かある。By the way, in the above-mentioned intracorporeal ultrasound probe, the radial scan image and linear scan 1! In order to obtain a large number of A in any direction, it is necessary to carefully arrange the number of ultrasonic transducers on the circumferential surface of the insertion section 2.
そうすると、必然的に！極す−ド線の数も増えてくるの
で、その処置が必要となる。Then, inevitably! Since the number of extremely low wires will also increase, it will be necessary to take measures to deal with it.
（発明が解決しようとする課題）
しかし、従来の体腔内超音波プローブにあっては、超音
波振動子を挿入部の周面に多数配列した場合の電極リー
ド線の処置を解決していないなめ（示されていないため
）、任意にスキャン面を選んでラジアルスキャン像やリ
ニアスキャン像を得ることができないと言う問題かある
。(Problem to be Solved by the Invention) However, in conventional intrabody cavity ultrasound probes, the issue of electrode lead wires when a large number of ultrasound transducers are arranged around the insertion part has not been solved. (Since it is not shown), there is a problem in that it is not possible to arbitrarily select a scan plane and obtain a radial scan image or a linear scan image.
本発明は、かかる点に鑑みてなされたものであり、その
目的は電極リード線の処理を簡単に行うことにより、任
意の面にてラジアルスキャン像やリニアスキャン像を得
ることが可能な体腔内超音波プローブを実現することに
ある。The present invention has been made in view of the above points, and its purpose is to easily process electrode lead wires to obtain radial scan images and linear scan images in any plane within a body cavity. The goal is to realize an ultrasonic probe.
（課題を解決するための手段）
上記目的を達成する本発明は、絶縁性部材からなる円筒
状ベースの周面に沿い、がっ、円筒軸の方向に間隔をあ
けて形成される複数のリンク状導電材であって、一端を
ベースの内側に配置して構成される各電極リード線を介
して送受波部に接続される内部電極と、該内部電極を覆
ってベースに固着される膜状の高分子圧電材と、該高分
子圧電材の表面に円筒軸に平行な配列で、かつ、間隔を
あけて形成される複数の帯状導電材であって、ベースの
端にて各帯状導電材と個々に接続される電極リード線を
介して送受波部に接続される外部電極とを備えている。(Means for Solving the Problems) The present invention that achieves the above object has a plurality of links formed at intervals in the direction of the cylindrical axis along the circumferential surface of a cylindrical base made of an insulating member. A conductive material in the form of an internal electrode that is connected to the wave transmitting/receiving section through each electrode lead wire with one end placed inside the base, and a film-like material that covers the internal electrode and is fixed to the base. a polymeric piezoelectric material, and a plurality of strip-shaped conductive materials formed on the surface of the polymer piezoelectric material in an array parallel to the cylindrical axis and at intervals, each strip-shaped conductive material being formed at an end of the base. and external electrodes connected to the wave transmitting/receiving section via individually connected electrode lead wires.
（実施例） 以下、本発明について図面を参照して詳細に説明する。(Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図は本発明の一実施例を示す概念図である。第１図
において、プローブの挿入部２は、円筒状の高分子圧電
材１１の外側に円筒の軸と同一方向に帯状の外部型；ｔ
ｉｌｉ！１２ａ、１２ｂ−１２ｃ・・・を有する。各外
部電極は各電極の端（円筒の端）に接続される電極リー
ド線１３ａ、１３ｂ、１３Ｃ・・・を介して送受波部の
切り替え回路（図示せず）に接続される。一方、高分子
圧電材１１の内側には、円筒の軸方向に間隔をあけて配
置されるリング状の内部型ｔＩｉ１４ａ 、１４ｂ 、
１４ｃ・・・が構成される。各内部電極は、一端を円筒
の内部に配置して構成される各電極リード線１５ａ、１
５ｂ、１５Ｃ・・・を介して送受波部の切り替え回路（
図示せず）に接続される。FIG. 1 is a conceptual diagram showing an embodiment of the present invention. In FIG. 1, the insertion part 2 of the probe is an external type having a band shape on the outside of the cylindrical polymer piezoelectric material 11 in the same direction as the axis of the cylinder;
ili! 12a, 12b-12c... Each external electrode is connected to a switching circuit (not shown) of the wave transmitting/receiving section via electrode lead wires 13a, 13b, 13C, . . . connected to the end of each electrode (end of the cylinder). On the other hand, inside the polymer piezoelectric material 11, ring-shaped internal molds tIi14a, 14b, which are arranged at intervals in the axial direction of the cylinder,
14c... are configured. Each internal electrode has one end disposed inside a cylinder, and each electrode lead wire 15a, 1
5b, 15C..., the switching circuit of the wave transmitting/receiving section (
(not shown).
第２図は本発明の一実施例における挿入部２の製造方法
の説明図である。内部電極１４ａ、１４ｂ、１４ｃ・・
・は絶縁性部材からなる円筒形のベース１６の周面に沿
い、かつ、円筒軸の方向に間隔をあけて組み込まれて構
成される。このとき内部電極の各電極リード線（図示せ
ず）は一端をベース１６の内側にして設けられ、ベース
１６内部空間部に配線されるケーブル（図示せず）に接
続される（ケーブルは送受波部の切り替え回路とつなが
ッテイル）。内部電極１４ａ 、１４ｂ 、１４ｃ・・
・及び電極リード１５ａ 、１５ｂ 、１５ｃ・・・の
構成は第３図でより詳しく理解できる。ここでは内部電
極１４ａ 、１４ｂ 、１４ｃ・・・の厚みは十分厚く
構成され、バッキング材の機能をも兼ね備えている。一
方、外部電極１２ａ 、１２ｂ 、１２ｃ・・・は片面
に所定の間隔をあけて帯状のアルミニュウム１２ａ、１
２ｂ 、１２ｃ・・・を蒸着した膜状の高分子圧電材１
１を、ベース１６に巻き付は固着して構成される。即ち
、高分子圧電材１１のアルミニュウム非蒸着面をベース
側にし、アルミニュウム１２ａ 、１２ｂ 、１２ｃ・
・・の長手方向をベース１６の軸方向に一致させて固着
される。これにより、外部型［１２ａ 、１２ｂ 、１
２Ｃ・・４．を高分子圧電材１１を間にして内部ｆｆｉ
＆１４ａ 、１４ｂ、１４Ｃ・・・と直交する（内部電
極は高分子圧電材で覆われることになる）。外部電極の
各電極リード線（図示せず）はベース（円筒）の下端か
ら引き出され、ケーブルに接続される０図示されていな
いが高分子圧電材１１の表面は外部電極保護用のカバー
フィルムで覆われている。FIG. 2 is an explanatory diagram of a method of manufacturing the insertion portion 2 in one embodiment of the present invention. Internal electrodes 14a, 14b, 14c...
* are installed along the circumferential surface of a cylindrical base 16 made of an insulating member and at intervals in the direction of the cylindrical axis. At this time, each electrode lead wire (not shown) of the internal electrode is provided with one end inside the base 16, and is connected to a cable (not shown) wired in the internal space of the base 16 (the cable is used for transmitting and receiving waves). connection with the switching circuit of the section). Internal electrodes 14a, 14b, 14c...
The structure of the electrode leads 15a, 15b, 15c, etc. can be understood in more detail in FIG. Here, the internal electrodes 14a, 14b, 14c, . . . are configured to be sufficiently thick and also function as a backing material. On the other hand, the external electrodes 12a, 12b, 12c, .
Film-like polymer piezoelectric material 1 on which 2b, 12c... are vapor-deposited
1 is wound around and fixed to the base 16. That is, the non-aluminum-deposited surface of the polymeric piezoelectric material 11 is placed on the base side, and the aluminum 12a, 12b, 12c.
... is fixed with the longitudinal direction aligned with the axial direction of the base 16. This allows the external type [12a, 12b, 1
2C...4. internal ffi with the polymer piezoelectric material 11 in between.
&14a, 14b, 14C... (the internal electrodes will be covered with a polymeric piezoelectric material). Each electrode lead wire (not shown) of the external electrode is pulled out from the bottom end of the base (cylindrical) and connected to the cable.Although not shown, the surface of the polymer piezoelectric material 11 is covered with a cover film for protecting the external electrode. covered.
以上の構成において、超音波診断装置本体の制御の下で
、外部電極１２ａ、１２ｂ、１２ｃ・・・の一つをグラ
ンドにし、他を開放した状態で、内部電極１４ａ、１４
ｂ ＋ １４ｃ・・・に所定の順序で駆動パルスを与え
ると、グランドに接続された外部電極の長平方向をスキ
ャン方向とするリニアスキャンを行うことができる。即
ち、第４図に示すスキャン面１７におけるリニアスキャ
ン像を得ることができる。次に、グランドに接続する外
部電極を変え、上記同様の駆動パルスを内部＠極に与え
ると、新しいスキャン面におけるリニアスキャン像が得
られる。上記の動作を繰り返すことにより、挿入部２を
とりまく部位の任意の面におけるリニアスキャン像を得
ることができる。一方、内部電極１４ａ 、１４ｂ 、
１４ｃ・・・の一つをグランドに接続し、外部型ｊｔｆ
ｌ１２ａ、１２ｂ、１２ｃ・・・に所定の順序で駆動パ
ルスを与えると、グランドに接続された内部電極の深さ
、例えば第４図に示すスキャン面１８におけるラジアル
スキャン像が得られる。そして内部電極１４ａ 、１４
ｂ 、１４ｃ・・・のグランド接続を変えながら、外部
型［１２ａ、１２ｂ、１２Ｃ・・・に上記同様な駆動パ
ルスを与えて行くと、挿入部２の任意の深さにてラジア
ルスキャン像を得ることができる。又、内部電極及び外
部電極を同時に複数個選択駆動することにより、３次元
空間から超音波情報を得ることができる。In the above configuration, under the control of the ultrasound diagnostic apparatus main body, one of the external electrodes 12a, 12b, 12c, etc. is grounded and the other is left open, and the internal electrodes 14a, 14
When driving pulses are applied to b + 14c in a predetermined order, a linear scan can be performed in which the scan direction is the longitudinal direction of the external electrode connected to the ground. That is, a linear scan image on the scan plane 17 shown in FIG. 4 can be obtained. Next, by changing the external electrode connected to the ground and applying the same driving pulse as described above to the internal @ pole, a linear scan image in a new scan plane can be obtained. By repeating the above operations, it is possible to obtain a linear scan image on any plane of the region surrounding the insertion section 2. On the other hand, internal electrodes 14a, 14b,
Connect one of 14c... to the ground and connect the external type jtf.
When driving pulses are applied to 112a, 12b, 12c, . . . in a predetermined order, a radial scan image is obtained at the depth of the internal electrode connected to the ground, for example, at the scan plane 18 shown in FIG. and internal electrodes 14a, 14
By applying the same drive pulses as above to the external molds [12a, 12b, 12C... while changing the ground connections of b, 14c..., a radial scan image can be obtained at any depth of the insertion section 2. Obtainable. Further, by simultaneously selectively driving a plurality of internal electrodes and external electrodes, ultrasound information can be obtained from a three-dimensional space.
尚、本発明は上記実施例に限定するものではない、外部
電極用電極リード線は実施例とは反対側から引き出すよ
うにしてもよい。Incidentally, the present invention is not limited to the above-mentioned embodiment, and the electrode lead wire for the external electrode may be drawn out from the side opposite to the embodiment.
（発明の効果）
以上説明の通り、本発明の体腔内超音波プローブによれ
ば、絶縁性部材からなる円筒状ベースに膜状の高分子圧
電材を間にしてリング状内部電極と帯状外部電極を直交
させて配置すると共に、内部電極の電極リード線を円筒
の内側に引き出し、又、外部電極の電極リード線を円筒
の端から引き出しているため、各電極リード線の処理を
簡単に行うことができる。又、各電極のグランド接続や
駆動パルスの印加を自由に選択できるので、挿入部近傍
の任意の面におけるラジアルスキャン像やリニアスキャ
ン像を得ることができる。(Effects of the Invention) As explained above, according to the intracorporeal ultrasound probe of the present invention, a ring-shaped internal electrode and a band-shaped external electrode are formed by using a cylindrical base made of an insulating member with a membrane-shaped polymeric piezoelectric material between them. are arranged perpendicular to each other, and the electrode lead wires of the internal electrodes are drawn out inside the cylinder, and the electrode lead wires of the external electrodes are drawn out from the end of the cylinder, making it easy to handle each electrode lead wire. I can do it. Furthermore, since the ground connection of each electrode and the application of drive pulses can be freely selected, a radial scan image or a linear scan image can be obtained on any surface near the insertion portion.
第１図は本発明の一実施例を示す概念図、第２図は一実
施例における挿入部の製造方法の説明図、第３図は本発
明の一実施例における内部電極を示す構成図、第４図は
本発明の一実施例におけるプローブのスキャン面の説明
図、第５図は従来例を示す構成図である。
１・・・体腔内超音波プローブ、２・・・挿入部、３・
・・ホルダ一部、４・・・ケーブル、１１・・・高分子
圧電材、１２ａ、１２ｂ、１２ｃ・・・外部電極、１３
ａ、１３ｂ 、１３Ｃ・・・外部電極リード線、１４ａ
、１４ｂ、１４Ｃ＝−・内部電極リード線、１５ａ、１
５ｂ、１５Ｃ・・・内部電極リード線、１６・・・円筒
状の絶縁性部材からなるベース、１７・・・リニアスキ
ャン面、１８・・・ラジアルスキャン面。FIG. 1 is a conceptual diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a method of manufacturing an insertion portion in an embodiment, and FIG. 3 is a configuration diagram showing an internal electrode in an embodiment of the present invention. FIG. 4 is an explanatory diagram of a scanning surface of a probe in an embodiment of the present invention, and FIG. 5 is a configuration diagram showing a conventional example. 1... Intrabody cavity ultrasound probe, 2... Insertion part, 3...
...Part of holder, 4...Cable, 11...Polymer piezoelectric material, 12a, 12b, 12c...External electrode, 13
a, 13b, 13C...external electrode lead wire, 14a
, 14b, 14C=--internal electrode lead wire, 15a, 1
5b, 15C: Internal electrode lead wire, 16: Base made of a cylindrical insulating member, 17: Linear scan surface, 18: Radial scan surface.
Claims (1)
音波プローブにおいて、 絶縁性部材からなる円筒状ベースの周面に沿い、かつ、
円筒軸の方向に間隔をあけて形成される複数のリング状
導電材であって、一端をベースの内側に配置して構成さ
れる各電極リード線を介して送受波部に接続される内部
電極と、該内部電極を覆つてベースに固着される膜状の
高分子圧電材と、該高分子圧電材の表面に円筒軸に平行
な配列で、かつ、間隔をあけて形成される複数の帯状導
電材であって、ベースの端にて各帯状導電材と個々に接
続される電極リード線を介して送受波部に接続される外
部電極とを備えることを特徴とする体腔内超音波プロー
ブ。[Scope of Claims] An intrabody cavity ultrasound probe in which an insertion section to be inserted into a body cavity has a cylindrical shape, which includes:
Internal electrodes are a plurality of ring-shaped conductive materials formed at intervals in the direction of the cylindrical axis, and are connected to the wave transmitting/receiving section via each electrode lead wire, which is configured with one end placed inside the base. , a film-like polymeric piezoelectric material fixed to the base covering the internal electrode, and a plurality of strips formed on the surface of the polymeric piezoelectric material in an array parallel to the cylindrical axis and spaced apart from each other. An intracorporeal ultrasound probe comprising an external electrode made of a conductive material and connected to a wave transmitting/receiving section via electrode lead wires that are individually connected to each band-shaped conductive material at the end of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13426088A JPH01303136A (en) | 1988-05-31 | 1988-05-31 | In-body cavity ultrasonic wave probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13426088A JPH01303136A (en) | 1988-05-31 | 1988-05-31 | In-body cavity ultrasonic wave probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01303136A true JPH01303136A (en) | 1989-12-07 |
Family
ID=15124138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13426088A Pending JPH01303136A (en) | 1988-05-31 | 1988-05-31 | In-body cavity ultrasonic wave probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01303136A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4898692A (en) * | 1972-02-22 | 1973-12-14 | ||
| JPS5621057A (en) * | 1979-07-31 | 1981-02-27 | Aloka Co Ltd | Electron scanning type supersonic wave probe |
| JPS57145650A (en) * | 1981-03-06 | 1982-09-08 | Tokyo Shibaura Electric Co | Production of probe in body cavity |
| JPS58190756A (en) * | 1982-04-30 | 1983-11-07 | Toshiba Corp | Ultrasonic transmitter/receiver |
| JPS6284697A (en) * | 1985-10-09 | 1987-04-18 | Hitachi Ltd | Ultrasonic probe |
-
1988
- 1988-05-31 JP JP13426088A patent/JPH01303136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4898692A (en) * | 1972-02-22 | 1973-12-14 | ||
| JPS5621057A (en) * | 1979-07-31 | 1981-02-27 | Aloka Co Ltd | Electron scanning type supersonic wave probe |
| JPS57145650A (en) * | 1981-03-06 | 1982-09-08 | Tokyo Shibaura Electric Co | Production of probe in body cavity |
| JPS58190756A (en) * | 1982-04-30 | 1983-11-07 | Toshiba Corp | Ultrasonic transmitter/receiver |
| JPS6284697A (en) * | 1985-10-09 | 1987-04-18 | Hitachi Ltd | Ultrasonic probe |
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