JPH01293849A - Ultrasonic probe - Google Patents
Ultrasonic probeInfo
- Publication number
- JPH01293849A JPH01293849A JP12524488A JP12524488A JPH01293849A JP H01293849 A JPH01293849 A JP H01293849A JP 12524488 A JP12524488 A JP 12524488A JP 12524488 A JP12524488 A JP 12524488A JP H01293849 A JPH01293849 A JP H01293849A
- Authority
- JP
- Japan
- Prior art keywords
- case
- liquid
- ultrasonic
- ultrasonic propagation
- accumulator
- 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.)
- Granted
Links
- 239000000523 sample Substances 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims description 14
- 230000001902 propagating effect Effects 0.000 claims description 10
- 230000000116 mitigating effect Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract description 7
- 238000005273 aeration Methods 0.000 abstract 4
- 230000002040 relaxant effect Effects 0.000 abstract 2
- 230000009545 invasion Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 238000002604 ultrasonography Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000013351 cheese Nutrition 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- 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、医療用超音波診断装置等に用いられる機械式
走査型の超音波探触子に関するものである０
従来の技術
従来、機械式走査型の超音波探触子は、超音波送受波部
をモータの駆動によシ動力伝達機構を介して回転させ、
セクタ形の超音波断層像を得るよ２７、−７
うになっている。以下、上記従来の超音波探触子につい
て第３図を参照しながら説明する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a mechanical scanning type ultrasound probe used in medical ultrasound diagnostic equipment, etc. The ultrasonic probe rotates the ultrasonic wave transmitter/receiver part by a motor drive via a power transmission mechanism.
It is designed to obtain sector-shaped ultrasound tomographic images27,-7. The conventional ultrasonic probe will be described below with reference to FIG. 3.
第３図に示すようにシャーシ１にハウジング２とケース
３が気密性を持って取り付けられている。As shown in FIG. 3, a housing 2 and a case 3 are airtightly attached to a chassis 1.
ハウジング２内には超音波送受波部４が設けられ、ケー
ス３内には駆動装置５が設けられ、この駆動装置５と上
記超音波送受波部４が動力伝達機構６により連係されて
いる。シャーシ１と動力伝達機構６との間にはオイルシ
ール７が介在され、ノ１ウジング２内に超音波伝播液体
８が封入されている。An ultrasonic wave transmitting/receiving section 4 is provided within the housing 2, a driving device 5 is provided within the case 3, and the driving device 5 and the ultrasonic wave transmitting/receiving section 4 are linked by a power transmission mechanism 6. An oil seal 7 is interposed between the chassis 1 and the power transmission mechanism 6, and an ultrasonic propagation liquid 8 is sealed in the housing 2.
超音波送受波部４への電力の供給、超音波送受波部４か
らの信号の取り出しや駆動装置５への電力等の供給は、
ケーブル９によって行われ、このケーブル９はケース３
に気密性を持って取り付けられたチューブ１０を通って
超音波診断装置本体（図示省略）へ接続され、チーーブ
１０内は充填材１１により封止されている。シャーシ１
にはハウジング２に連通ずる超音波伝播液体８の体積変
化緩和用のアキュムレータ１２が取シ付けられ、ハウジ
ング２内の超音波伝播液体８の体積変化を３、、−。Supplying power to the ultrasonic wave transmitting/receiving unit 4, extracting signals from the ultrasonic wave transmitting/receiving unit 4, and supplying power to the drive device 5, etc.
This cable 9 is connected to the case 3.
The tube 10 is connected to the main body of the ultrasonic diagnostic apparatus (not shown) through a tube 10 airtightly attached to the tube 10, and the inside of the tube 10 is sealed with a filling material 11. chassis 1
An accumulator 12 communicating with the housing 2 for alleviating the volume change of the ultrasonic propagating liquid 8 is attached to the housing 2 to reduce the volume change of the ultrasonic propagating liquid 8 in the housing 2 by 3, -.
緩和している。It's easing.
発明が解決しようとする課題
上記従来例の構成では、ケース３とシャーシ１の取り付
は部分およびケース３とチーーブ１ｏの取り付は部分か
ら液体が浸入しないようにケース３内を密閉状態にして
いる。しかし、ケース３内を完全な密閉状態にすると、
アキュムレータ １２がケース３内の空気の膨張、収縮
によシ充分に作用せず、したがって、超音波伝播液体８
の体積変化を緩和することができず、オイルシール７部
等から超音波伝播液体８へ気体が侵入したり、ケース３
内へ超音波伝播液体８が流出するなどの課題があった。Problems to be Solved by the Invention In the configuration of the conventional example described above, the case 3 and the chassis 1 are attached partially, and the case 3 and the cheese 1o are attached in a sealed state to prevent liquid from entering from the parts. There is. However, if the inside of case 3 is completely sealed,
The accumulator 12 does not sufficiently act on the expansion and contraction of the air in the case 3, and therefore the ultrasonic propagating liquid 8
The change in volume of case 3 cannot be alleviated, and gas may enter the ultrasonic propagation liquid 8 from the oil seal 7,
There were problems such as the ultrasonic propagation liquid 8 flowing out into the interior.
そこで、本発明は、外部から内部への液体の浸入を防止
することができることは勿論のこと、ケース内部の圧力
を常に外部と同圧にしてアキュムレータが充分に機能す
るようにし、超音波伝播液体中への気体の侵入や、ケー
ス内への超音波伝播液体の流出などを防止することがで
きるようにした超音波探触子を提供しようとするもので
ある。Therefore, the present invention not only can prevent liquid from entering from the outside to the inside, but also allows the pressure inside the case to always be the same as the pressure outside so that the accumulator can function satisfactorily. The object of the present invention is to provide an ultrasonic probe that can prevent gas from entering the probe and ultrasonic propagation liquid from flowing out into the case.
課題を解決するだめの手段
本発明は、上記目的を達成するため、ハウジングの内部
に超音波送受波部を設けると共に、超音波伝播液体を封
入し、ケースの内部に上記超音波送受波部の駆動装置を
設けると共に、上記超音波伝播液体の体積変化緩和用の
アキュムレータを設け、上記ケースの内部と外部を通気
させ、液体を透過しない通気手段を設けだものである。Means for Solving the Problems In order to achieve the above object, the present invention provides an ultrasonic wave transmitting/receiving section inside a housing, sealing an ultrasonic propagating liquid, and installing the ultrasonic wave transmitting/receiving section inside a case. In addition to providing a driving device, an accumulator for alleviating the volume change of the ultrasonic propagation liquid is provided, and ventilation means that does not allow the liquid to pass through is provided to ventilate the inside and outside of the case.
作 用 本発明は、上記構成によシ次のような作用を有する。For production The present invention has the following effects due to the above configuration.
すなわち、ケースの内部と外部を液体を透過しない通気
手段により通気させることにより、ケース内部の気圧を
常にケースの外部の気圧と等しく、超音波伝播液体の体
積変化緩和用のアキュムレータを充分に機能させること
ができる。In other words, by ventilating the inside and outside of the case using a ventilation means that does not allow liquid to pass through, the air pressure inside the case is always equal to the air pressure outside the case, and the accumulator for alleviating volume changes in the ultrasonic propagation liquid can function sufficiently. be able to.
実施例
以下、本発明の実施例について図面を参照しながら説明
する。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.
まず、本発明の第１の実施例について説明する。First, a first embodiment of the present invention will be described.
５、−７
第１図は本発明の第１の実施例における超音波探触子を
示す要部の断面図である。5, -7 FIG. 1 is a cross-sectional view of essential parts of an ultrasound probe according to a first embodiment of the present invention.
本実施例においては、上記従来例と同一部分については
同一符号を付してその説明を省略し、異なる構成につい
て説明する。第１図に示すようにケース３の基部側に開
放部１３が形成され、この開放部１３を閉塞するように
通気手段として、気体のみを通すよう微細な多数の穴を
有する通気膜１４が設けられている。In this embodiment, the same parts as those in the conventional example described above are given the same reference numerals, and the explanation thereof will be omitted, and the different configuration will be explained. As shown in FIG. 1, an open part 13 is formed on the base side of the case 3, and a ventilation membrane 14 having a large number of fine holes to allow only gas to pass is provided as a ventilation means to close this open part 13. It is being
以上の構成によシ、通気膜１４では気体のみを通し、液
体はケース３内に浸入しない。そして、上記のように通
気膜１４を通る空気により、ケース３の内部は常に外部
と同じ圧力となる。しだがって、超音波伝播液体８の体
積変化緩和用のアキュムレータ１２（第３図参照）を充
分に機能させることができ、オイルシール７（第３図参
照）等から超音波伝播液体８への気体の侵入や、ケース
３内への超音波伝播液体８の流出などを防止することが
できる。With the above configuration, only gas passes through the gas permeable membrane 14, and liquid does not enter into the case 3. As described above, the inside of the case 3 always has the same pressure as the outside due to the air passing through the ventilation membrane 14. Therefore, the accumulator 12 (see Fig. 3) for alleviating the volume change of the ultrasonic propagating liquid 8 can function sufficiently, and the ultrasonic propagating liquid 8 is transferred from the oil seal 7 (see Fig. 3) etc. It is possible to prevent gases from entering the case 3 and the ultrasonic propagation liquid 8 from flowing out into the case 3.
次に本発明の第２の実施例について説明する。Next, a second embodiment of the present invention will be described.
６７、−７
第２図は本発明の第２の実施例における超音波探触子を
示す要部の断面図である。67, -7 FIG. 2 is a sectional view of essential parts of an ultrasound probe according to a second embodiment of the present invention.
本実施例においては、上記従来例と同一部分については
同一符号を付してその説明を省略し、異なる構成につい
て説明する。第２図に示すようにチューブ１１内を封止
する充填材１１ にケース３の内部とチューブ１１内を
連通ずる通気パイプ１５が挿通されている。In this embodiment, the same parts as those in the conventional example described above are given the same reference numerals, and the explanation thereof will be omitted, and the different configuration will be explained. As shown in FIG. 2, a ventilation pipe 15 that communicates the inside of the case 3 and the inside of the tube 11 is inserted through a filler 11 that seals the inside of the tube 11.
以上の構成により、液体はケース３内に浸入せず、通気
パイプ１５によりケース３の内部を常に外部と同じ圧力
にすることができる。したがって、上記実施例と同様に
超音波伝播液体８の体積変化緩和用のアキュムレータ１
２を充分に機能させ、超音波伝播液体８への気体の侵入
や、ケース３内への超音波伝播液体８の流出などを防止
することができる。With the above configuration, liquid does not enter the case 3, and the inside of the case 3 can always be kept at the same pressure as the outside by the ventilation pipe 15. Therefore, as in the above embodiment, the accumulator 1 for alleviating the volume change of the ultrasonic propagation liquid 8
2 to function sufficiently, it is possible to prevent gas from entering the ultrasonic propagation liquid 8 and leakage of the ultrasonic propagation liquid 8 into the case 3.
本実施例のように通気パイプ１５を用いれば、上記第１
の実施例のように通気膜１４を用いる場合に比べて構成
を簡単にすることができる。If the ventilation pipe 15 is used as in this embodiment, the first
The configuration can be simplified compared to the case where the ventilation membrane 14 is used as in the embodiment.
発明の効果 ７ 、 。Effect of the invention 7.
以上述べたように本発明によれば、ケース内部と外部を
液体を透過しない通気手段により通気させることにより
、ケース内への液体の浸入を防止することができること
は勿論のこと、ケース内部の圧力を外部の圧力と等しく
することができるので、アキュムレータを充分に機能さ
せることができ、したがって、超音波伝播液体への気体
の侵入やケース内への超音波伝播液体の流出などを防止
することができる。As described above, according to the present invention, by ventilating the inside and outside of the case using a ventilation means that does not allow liquid to pass through, it is possible to not only prevent liquid from entering the case, but also prevent the pressure inside the case from increasing. Since the pressure can be made equal to the external pressure, the accumulator can function satisfactorily, and therefore, it is possible to prevent gas from entering the ultrasonic propagating liquid and preventing the ultrasonic propagating liquid from flowing out into the case. can.
第１図は本発明の第１の実施例における超音波探触子を
示す要部の断面図、第２図は本発明の第２の実施例を示
す要部の断面図、第３図は従来の超音波探触子を示す断
面図である。
１−ケース、２・・・ハウジング、３・・ケース、４・
・超音波送受波部、５・・・駆動装置、６・−動力伝達
機構、７・・・オイルシール、８・・・超音波伝播液体
、９・ケーブル、１０・・チーーブ、１１− 充填材
、１２・・・アキュムレータ、１４・・・通気膜、１５
−通気バイブ。FIG. 1 is a cross-sectional view of the main parts of an ultrasound probe according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the main parts of the ultrasound probe according to the second embodiment of the present invention, and FIG. FIG. 2 is a cross-sectional view showing a conventional ultrasound probe. 1-case, 2-housing, 3-case, 4-
・Ultrasonic wave transmitting/receiving unit, 5... Drive device, 6... Power transmission mechanism, 7... Oil seal, 8... Ultrasonic propagation liquid, 9... Cable, 10... Cheeve, 11- Filling material , 12... Accumulator, 14... Ventilation membrane, 15
- Ventilation vibe.
Claims (1)
音波伝播液体を封入し、ケースの内部に上記超音波送受
波部の駆動装置を設けると共に、上記超音波伝播液体の
体積変化緩和用のアキュムレータを設け、上記ケースの
内部と外部を通気させ、液体を透過しない通気手段を設
けたことを特徴とする超音波探触子。An ultrasonic wave transmitting/receiving section is provided inside the housing, an ultrasonic propagating liquid is sealed therein, a driving device for the ultrasonic wave transmitting/receiving section is provided inside the case, and an accumulator for mitigating volume change of the ultrasonic propagating liquid. An ultrasonic probe characterized in that it is provided with a ventilation means that allows ventilation between the inside and outside of the case and prevents liquid from passing through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524488A JPH0685775B2 (en) | 1988-05-23 | 1988-05-23 | Ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524488A JPH0685775B2 (en) | 1988-05-23 | 1988-05-23 | Ultrasonic probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01293849A true JPH01293849A (en) | 1989-11-27 |
| JPH0685775B2 JPH0685775B2 (en) | 1994-11-02 |
Family
ID=14905345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12524488A Expired - Lifetime JPH0685775B2 (en) | 1988-05-23 | 1988-05-23 | Ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0685775B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013165790A (en) * | 2012-02-15 | 2013-08-29 | Nippon Dempa Kogyo Co Ltd | Ultrasonic probe |
| JP2016107057A (en) * | 2014-12-09 | 2016-06-20 | キヤノン株式会社 | Acoustic imaging apparatus |
-
1988
- 1988-05-23 JP JP12524488A patent/JPH0685775B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013165790A (en) * | 2012-02-15 | 2013-08-29 | Nippon Dempa Kogyo Co Ltd | Ultrasonic probe |
| JP2016107057A (en) * | 2014-12-09 | 2016-06-20 | キヤノン株式会社 | Acoustic imaging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0685775B2 (en) | 1994-11-02 |
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