JPH05220148A - Water tank for medical ultrasonic device - Google Patents
Water tank for medical ultrasonic deviceInfo
- Publication number
- JPH05220148A JPH05220148A JP20632592A JP20632592A JPH05220148A JP H05220148 A JPH05220148 A JP H05220148A JP 20632592 A JP20632592 A JP 20632592A JP 20632592 A JP20632592 A JP 20632592A JP H05220148 A JPH05220148 A JP H05220148A
- Authority
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- Japan
- Prior art keywords
- water tank
- subject
- water
- thin film
- main body
- 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.)
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Links
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、乳腺診断等に多用され
ている医用超音波装置用水槽に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tank for a medical ultrasonic device which is frequently used for mammary gland diagnosis and the like.
【０００２】[0002]
【従来の技術】生体組織に超音波を照射すると、異なる
組織の境界面より超音波は反射する。その反射波の強弱
を電気信号に変換しモニターに表示することにより生体
組織の断層像を得ることができる。2. Description of the Related Art When a living tissue is irradiated with ultrasonic waves, the ultrasonic waves are reflected from the boundary surface between different tissues. By converting the intensity of the reflected wave into an electric signal and displaying it on a monitor, a tomographic image of the living tissue can be obtained.
【０００３】ところで超音波送受信器（以下「プロー
ブ」という）と生体との間の減衰，反射等を防止するた
め音響結合剤が使用されるが、その材料として生体組織
に近い水等が多く利用されている。特に電子走査に比較
し機械走査は生体との密着が困難であり、水袋又は水槽
が不可欠となる。By the way, an acoustic coupling agent is used to prevent attenuation and reflection between an ultrasonic transmitter / receiver (hereinafter referred to as a "probe") and a living body. As a material thereof, water or the like close to a living tissue is often used. Has been done. In particular, mechanical scanning is more difficult to adhere to a living body than electronic scanning, and a water bag or a water tank is indispensable.
【０００４】以下、医用超音波装置用の水袋及び水槽の
従来例を説明する。A conventional example of a water bag and a water tank for a medical ultrasonic device will be described below.
【０００５】図３は、精密検査等で比較的狭い範囲の走
査に使用される水袋１を示すものであり、音響結合剤と
して一般に水２が使用される。そして、水袋１を被検体
３に接触させるとともに水袋１内に内装したプローブ４
を同図の矢印方向に走査することにより被検体３の断層
像を得ることができる。また、プローブ４を同図の矢印
方向と直角方向でかつ水面と平行にシフトすることによ
り断層面の位置を変えることができるのが一般的であ
る。FIG. 3 shows a water bag 1 used for scanning a relatively narrow range in a precision inspection or the like, and water 2 is generally used as an acoustic coupling agent. Then, the water bag 1 is brought into contact with the subject 3 and the probe 4 installed inside the water bag 1
By scanning in the direction of the arrow in the figure, a tomographic image of the subject 3 can be obtained. Further, it is general that the position of the tomographic plane can be changed by shifting the probe 4 in the direction perpendicular to the arrow direction in the figure and parallel to the water surface.
【０００６】図４は、従来の水槽５を示すもので、同図
に示す水槽５はその上部に開口部６を設けるとともに内
部に音響結合剤としての水２を収納し、また、その水２
の中にプローブ４を内装している。この水槽５は比較的
広範囲の走査に使用されるものであり、図３の水袋１の
場合と異なり水槽５が被検体３の下方に位置するのは、
水２の水量が多いため被検体３への負担を軽減させつつ
全体の構成の大型化を防ぐ意味からである。FIG. 4 shows a conventional water tank 5. The water tank 5 shown in FIG. 4 is provided with an opening 6 in the upper portion thereof and contains water 2 as an acoustic coupling agent therein, and the water 2
The probe 4 is installed inside. This water tank 5 is used for a relatively wide range of scanning, and unlike the case of the water bag 1 in FIG. 3, the water tank 5 is located below the subject 3.
This is because the large amount of water 2 reduces the burden on the subject 3 and prevents the overall configuration from increasing.
【０００７】図５は、従来例の他例としての水槽７を示
すものであり、この水槽７が図４に示す水槽５と異なる
点は、開口部６に被検体３の生体組織に近い音響特性を
有し、かつ被検体３に密着性の良い柔軟な薄膜８を張設
したことである。この水槽７も水槽５と同様な目的で使
用される。FIG. 5 shows a water tank 7 as another example of the conventional example. The difference between the water tank 7 and the water tank 5 shown in FIG. 4 is that the opening 6 has a sound close to the biological tissue of the subject 3. That is, the flexible thin film 8 having characteristics and having good adhesion is stretched. This water tank 7 is also used for the same purpose as the water tank 5.
【０００８】上述した水袋１，水槽５，７のうち主に水
槽５，７の特徴を以下に説明する。The features of the water tanks 5, 7 among the above-mentioned water bags 1, water tanks 5, 7 will be described below.
【０００９】図４に示す水槽５は、被検体３と水２が直
接接触するため、現在の超音波技術では比較的良い画質
を得やすい。In the water tank 5 shown in FIG. 4, since the subject 3 and the water 2 are in direct contact with each other, it is easy to obtain a relatively good image quality with the current ultrasonic technology.
【００１０】図５に示す水槽７は、特に乳腺等の柔軟な
生体組織の診断において、被検体３の体表面が薄膜８に
圧迫され超音波の進行方向に直角に近ずくため超音波の
反射が少なく感度の向上、アーチファクトの減少等が図
れるとともに、視野深度の向上につながる。In the aquarium 7 shown in FIG. 5, especially in the diagnosis of flexible living tissues such as the mammary gland, the body surface of the subject 3 is pressed by the thin film 8 and approaches a direction perpendicular to the direction of the ultrasonic wave, so that the ultrasonic wave is reflected. The sensitivity is improved, the artifacts are reduced, and the depth of field is improved.
【００１１】すなわち、図３に示すように超音波の伝搬
は、プローブ４から放射される超音波の音速が絞られた
Ｓの範囲が分解能に比較的優れしかもＳの範囲は短いた
め生体視野は浅いほど良好となる。尚、同図においてＹ
は音速の広がりを示している。That is, as shown in FIG. 3, in the propagation of ultrasonic waves, the range of S in which the sound velocity of the ultrasonic waves emitted from the probe 4 is narrowed is relatively excellent in resolution and the range of S is short, so that the field of view of the living body is small. The shallower the better. In the figure, Y
Indicates the spread of the speed of sound.
【００１２】[0012]
【発明が解決しようとする課題】図４，図５に示す水槽
５，７は、上述したような特徴を有するが、このうち図
４に示す水槽５は、被検体３と水２とが直接接触するた
め、被検体３が濡れたり、水２の中に異物が混入し、こ
れが超音波による断層面の画像劣化の原因となる等の問
題がある。また、被検体３の呼吸による生体組織の移動
のため良質の画像を得ることが難しい。The water tanks 5 and 7 shown in FIGS. 4 and 5 have the characteristics as described above. Among them, the water tank 5 shown in FIG. Due to the contact, there is a problem that the subject 3 gets wet or foreign matter is mixed in the water 2, which causes deterioration of the image on the tomographic plane due to ultrasonic waves. Moreover, it is difficult to obtain a high-quality image because the living tissue is moved by the respiration of the subject 3.
【００１３】一方、図５に示す水槽７の場合は、薄膜８
にしわができることがあり、被検体３と薄膜８との間に
空気が入り込んで画質劣化の原因となるとともに、乳癌
等の診断に際しては***の脇の下付近も重要であるが、
この部位は薄膜８との間に空気が入り混み易く期待通り
の視野を得られないという問題がある。また、***の大
きさによっては薄膜に対する密着性が悪く、前述した視
野深度に影響を及ぼすとともに、水槽５の場合と同様被
検体３の呼吸のため良質な画像を得にくい。On the other hand, in the case of the water tank 7 shown in FIG.
Wrinkles may occur, and air may enter between the subject 3 and the thin film 8 to cause deterioration in image quality, and the vicinity of the armpit of the breast is also important when diagnosing breast cancer or the like.
This area has a problem that air is easily mixed with the thin film 8 and a desired visual field cannot be obtained. Further, depending on the size of the breast, the adhesion to the thin film is poor, which affects the depth of field described above, and it is difficult to obtain a good quality image due to the breathing of the subject 3 as in the case of the water tank 5.
【００１４】上述した種々の欠点は、１日に多数の被検
体３を扱いかつデータ撮りの失敗が許されない集団検診
等の場合に顕著である。The above-mentioned various drawbacks are remarkable in the case of a mass examination or the like in which a large number of subjects 3 are treated per day and the failure to take data is not allowed.
【００１５】そこで、本発明は、上記事情に鑑みてなさ
れたものであり、被検体への負担を軽減させつつ全体の
構成の大型化を防止し、薄膜の長所を生かし欠点を最小
限にとどめて良質な断層像を得ることに寄与し得る医用
超音波装置用水槽を提供することを目的とするものであ
る。Therefore, the present invention has been made in view of the above circumstances, and prevents the size of the entire structure from being increased while reducing the burden on the subject, and the advantages of the thin film are utilized to minimize the defects. It is an object of the present invention to provide a water tank for a medical ultrasonic device that can contribute to obtaining a high-quality tomographic image.
【００１６】[0016]
【課題を解決するための手段】上記目的を達成するため
の本発明の医用超音波装置用水槽は、水槽本体の上部に
設けた開口部に薄膜を備え、前記水槽本体内部に音響結
合剤を収納する医用超音波装置用水槽において、前記水
槽本体内部の圧力を制御するために、大気開放孔を備え
音響結合剤を収納する予備タンクを有することを特徴と
するものである。In order to achieve the above object, a water tank for a medical ultrasonic device of the present invention comprises a thin film at an opening provided in an upper portion of a water tank body, and an acoustic binder is provided inside the water tank body. A water tank for a medical ultrasonic device to be housed is characterized by having a preliminary tank having an atmosphere opening hole for housing an acoustic coupling agent in order to control the pressure inside the tank body.
【００１７】[0017]
【作用】上記構成の医用超音波装置用水槽によれば、水
槽本体の上部に設けた開口部に薄膜を備え、その水槽本
体内部に音響結合剤を収納した構成であるから、音響結
合剤の液量を多くしても、その液体の重量が被検体に加
わることがなく、被検体への負担が軽減する。また、水
槽本体を吊り下げる機構が不要となることから、全体の
構成の大型化を防止する。According to the water tank for a medical ultrasonic device having the above-mentioned structure, since the thin film is provided in the opening provided in the upper part of the water tank body and the acoustic coupling agent is housed inside the water tank body, Even if the amount of liquid is increased, the weight of the liquid is not added to the subject, and the burden on the subject is reduced. Further, since a mechanism for suspending the water tank body is not necessary, it is possible to prevent the overall structure from increasing in size.
【００１８】また、水槽本体，予備タンク間の流路を開
くことにより、水槽本体内部の圧力が減る。これによ
り、被検体毎に薄膜に加わる圧力の調整が可能となり、
薄膜の被検体への密着性が良好になる。Further, the pressure inside the water tank body is reduced by opening the flow path between the water tank body and the spare tank. This makes it possible to adjust the pressure applied to the thin film for each subject,
Adhesion of the thin film to the subject is improved.
【００１９】[0019]
【実施例】以下、本発明の実施例を図面を参照して詳述
する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２０】図１は本発明の医用超音波装置用水槽の一
実施例を示す概略断面図である。FIG. 1 is a schematic sectional view showing an embodiment of a water tank for a medical ultrasonic device of the present invention.
【００２１】同図において、水槽１０は上部に開口部１
１ａを設けるとともに側部及び底部に３個の出入口１１
ｂ，１１ｃ，１１ｄを設けた水槽本体１１を有してい
る。In FIG. 1, the water tank 10 has an opening 1 at the top.
1a is provided and three entrances and exits 11 are provided on the side and bottom.
It has a water tank body 11 provided with b, 11c and 11d.
【００２２】開口部１１ａには、上側に凸形状の薄膜１
２が環状の蓋体１３により取り付けられている。The opening 11a has an upwardly convex thin film 1 formed therein.
2 is attached by an annular lid 13.
【００２３】蓋体１３は、内部に鋼体１３ｂを有し、そ
の周辺を柔軟な弾性体１３ａにより被覆することにより
形成され、水槽本体１１の内部に収納した音響結合剤と
しての水１４を外部に漏れないようにするとともに、被
検体３を保護する役割をも果している。The lid 13 has a steel body 13b inside and is formed by covering the periphery thereof with a flexible elastic body 13a. The water 14 as an acoustic coupling agent contained in the aquarium body 11 is externally formed. In addition to preventing leaks to the subject, it also plays a role of protecting the subject 3.
【００２４】薄膜１２の上側部には、出入口１２ａが設
けられ、この出入口１２ａに、パイプ１５を介して気泡
抜き弁１６が取り付けられている。An inlet / outlet port 12a is provided on the upper side of the thin film 12, and a bubble vent valve 16 is attached to the inlet / outlet port 12a via a pipe 15.
【００２５】水槽本体１１には、プローブ４が内装さ
れ、このプローブ４を図１に示す矢印方向に走査するこ
とにより被検体３の断層像を得るようになっている。A probe 4 is incorporated in the water tank body 11, and a tomographic image of the subject 3 is obtained by scanning the probe 4 in the direction of the arrow shown in FIG.
【００２６】１７は、水槽本体１１の内部に望ませて配
置した温度制御手段、すなわちヒータで、水１４の水温
を体温近くに保持するようになっている。Reference numeral 17 is a temperature control means, that is, a heater, which is desirably arranged inside the water tank main body 11, and keeps the water temperature of the water 14 close to the body temperature.
【００２７】水槽１０は、圧力制御手段Ａを具備してい
る。すなわち、水槽本体１１の出入口１１ｂ，１１ｃ間
には循環パイプ１８が接続されて水１４の循環水路が形
成してあり、さらにこの循環パイプ１８には三方切替弁
１９及びポンプ２０が接続されている。そして、三方切
替弁１９には、大気に開放されている大気開放孔２１ａ
を備え、水１４を収納した予備タンク２１が接続されて
いる。２３は３個の切替端子２３ａ，２３ｂ，２３ｃを
有し三方切替弁１９及びポンプ２０を制御するリモート
切替スイッチ、２４は水槽本体１１の出入口１１ｄにパ
イプ２５を介して接続された排水弁である。The water tank 10 is equipped with pressure control means A. That is, a circulation pipe 18 is connected between the entrances 11b and 11c of the water tank body 11 to form a circulation water passage for the water 14, and a three-way switching valve 19 and a pump 20 are connected to the circulation pipe 18. .. The three-way switching valve 19 has an atmosphere opening hole 21a that is open to the atmosphere.
And a spare tank 21 containing water 14 is connected. Reference numeral 23 is a remote changeover switch that has three changeover terminals 23a, 23b, and 23c and controls the three-way changeover valve 19 and the pump 20. Reference numeral 24 is a drain valve connected to the inlet / outlet 11d of the water tank body 11 via a pipe 25. ..
【００２８】次に、上記構成の水槽１０の作用を説明す
る。Next, the operation of the water tank 10 having the above structure will be described.
【００２９】水槽１０内の水圧を増加させる場合は、圧
力制御手段Ａのリモート切替スイッチ２３を切替端子２
３ａの位置にセットし、三方切替弁１９を動作させて出
入口１１ｃと予備タンク２１とを結ぶ流路を閉じるとと
もにポンプ２０を駆動する。この状態では予備タンク２
１内の水１４がポンプ２０により循環パイプ１８，出入
口１１ｂを経て水槽本体１１内に圧装され、従って水槽
１０内の水圧は上昇する。When the water pressure in the water tank 10 is to be increased, the remote changeover switch 23 of the pressure control means A is changed over to the changeover terminal 2.
3a, the three-way switching valve 19 is operated to close the flow path connecting the inlet / outlet port 11c and the auxiliary tank 21, and the pump 20 is driven. In this state, the spare tank 2
The water 14 in 1 is pressure-fed by the pump 20 into the water tank main body 11 via the circulation pipe 18 and the inlet / outlet port 11b, so that the water pressure in the water tank 10 rises.
【００３０】水槽１０内の水圧が所定圧になった状態で
リモート切替スイッチ２３を切替端子２３ｂの位置に切
り替える。このとき三方切替弁１９は予備タンク２１か
ら循環パイプ１８への流路を閉じるとともに出入口１１
ｃとポンプ２０を結ぶ流路を形成し、従って、所定圧に
高められた水１４は循環パイプ１８と水槽１０内を循環
することになりその圧力は一定に保持される。The remote selector switch 23 is switched to the position of the selector terminal 23b in a state where the water pressure in the water tank 10 reaches a predetermined pressure. At this time, the three-way switching valve 19 closes the flow path from the reserve tank 21 to the circulation pipe 18 and at the same time as the entrance 11
A flow path connecting c and the pump 20 is formed, so that the water 14 whose pressure has been raised to a predetermined pressure circulates in the circulation pipe 18 and the water tank 10, and the pressure is kept constant.
【００３１】水槽１０内の圧力を下げる場合は、リモー
ト切替スイッチ２３を切替端子２３ｃの位置に切替え
る。このときポンプ２０は停止し、また三方切替弁１９
が動作して出入口１１ｃから予備タンク２１へ至る流路
を形成する（開く）とともにポンプ２０に至る流路を閉
じる。従って、水槽１０内の水１４は出入口１１ｃから
予備タンク２１へ戻り水槽１０内の水圧が低下する。When lowering the pressure in the water tank 10, the remote selector switch 23 is switched to the position of the selector terminal 23c. At this time, the pump 20 stops and the three-way switching valve 19
Operates to form (open) a flow path from the inlet / outlet port 11c to the auxiliary tank 21, and closes the flow path to the pump 20. Therefore, the water 14 in the water tank 10 returns to the spare tank 21 from the inlet / outlet 11c, and the water pressure in the water tank 10 decreases.
【００３２】このようにして水槽１０内の水圧を圧力制
御手段Ａにより調整することにより、薄膜１２と被検体
３との接触圧力をその被検体３の大きさに対応して最適
のものに設定することが可能となる。By adjusting the water pressure in the water tank 10 by the pressure control means A in this way, the contact pressure between the thin film 12 and the subject 3 is set to an optimum value in accordance with the size of the subject 3. It becomes possible to do.
【００３３】従って、被検体３が水１４に直接接触する
ことがなく被検体３が濡れないという薄膜１２本来の特
性に加え、水槽１０内の水圧（水量）の増減が各被検体
３毎に可能となり、プローブ４から被検体３へ照射され
る超音波の入射角が改善され、また視野深度が浅くなっ
て超音波画像の画質が向上する。Therefore, in addition to the original characteristic of the thin film 12 that the subject 3 does not come into direct contact with the water 14 and the subject 3 does not get wet, the increase or decrease of the water pressure (water amount) in the water tank 10 is different for each subject 3. It becomes possible, the incident angle of the ultrasonic wave irradiated from the probe 4 to the subject 3 is improved, and the depth of field becomes shallow, so that the image quality of the ultrasonic image is improved.
【００３４】また、***等大きさに個人差がありかつ柔
らかい部位に対し、被検体３毎の微妙な圧力調整が可能
となり、脇の下や***の大きさ毎の密着性が良好となり
かつ薄膜１２にはしわが生じるおそれも無くなる。Further, it is possible to finely adjust the pressure for each subject 3 for a soft portion having a different breast size and the like, so that the close contact between the armpit and the breast size is improved and the thin film 12 is formed. There is no risk of wrinkles.
【００３５】さらに水槽１０内の水圧を高めることによ
りこの水槽１０の薄膜１２に対して体重を乗せることも
可能となり呼吸に伴なう生体組織の移動が殆ど無くなる
とともに被検体３と薄膜１２との間に気泡が生じること
も無くなり良質な画像が得られる。Further, by increasing the water pressure in the water tank 10, it is possible to put a weight on the thin film 12 of the water tank 10, the movement of living tissue accompanying breathing is almost eliminated, and the subject 3 and the thin film 12 are separated from each other. Bubbles are not generated between them and a high quality image can be obtained.
【００３６】特に水槽１０内の水圧をある程度まで上昇
させた状態で被検体３を薄膜１２に乗せて密着させ、次
に必要な部位（脇の下）が薄膜１２に密着するまで微小
量ずつ減圧することが良好な画像を得る上で好ましい。In particular, the subject 3 is placed on the thin film 12 and brought into close contact with the water pressure in the water tank 10 being raised to a certain degree, and then the pressure is reduced by a small amount until a necessary portion (armpit) comes into close contact with the thin film 12. Is preferable for obtaining a good image.
【００３７】薄膜１２と水１４との間に気泡が生じた場
合には気泡抜き弁１６を開いてその気泡を除去する。こ
れにより、超音波装置の使用のさまたげとなる超音波を
ほとんど通さない気泡を水槽開口部の薄膜の内側から除
去することができるようになる。When bubbles occur between the thin film 12 and the water 14, the bubble vent valve 16 is opened to remove the bubbles. As a result, it becomes possible to remove air bubbles, which impede the use of the ultrasonic device, from passing through the ultrasonic waves from the inside of the thin film at the opening of the water tank.
【００３８】また、水１４はヒータ１７により被検体３
の体温近くに高められる。これにより、被検体が薄膜へ
密着するときの冷たいと感じる不快感を無くすことがで
きる。また、薄膜が暖められることにより柔らかくなる
ので、被検体への密着性をさらに高めることができる。Further, the water 14 is heated by the heater 17 to the subject 3
It is raised near the body temperature. As a result, it is possible to eliminate the discomfort felt when the subject comes into close contact with the thin film and feels cold. Further, since the thin film is softened by being warmed, the adhesion to the subject can be further enhanced.
【００３９】また、圧力制御手段Ａは、主に加圧用のポ
ンプ２０と、減圧用の予備タンク２１とを組み合わせた
ものであるから、構成が簡素となり、当該水槽１０の小
型化が図れる。Further, since the pressure control means A is mainly a combination of the pressurizing pump 20 and the depressurizing auxiliary tank 21, the structure is simplified and the water tank 10 can be miniaturized.
【００４０】本発明は上述したような超音波診断装置に
用いた実施例に限定されるものではなく、特許請求の範
囲内で種々の変形、種々の超音波装置に用いることが可
能であることはいうまでもない。The present invention is not limited to the embodiment used in the ultrasonic diagnostic apparatus as described above, but can be applied to various modifications and various ultrasonic apparatuses within the scope of the claims. Needless to say.
【００４１】[0041]
【発明の効果】以上詳述した本発明によれば、水槽本体
の上部に設けた開口部に薄膜を備え、その水槽本体内部
に音響結合剤を収納した構成であるから、被検体への負
担を軽減させつつ全体の構成の大型化を防止でき、水槽
本体，予備タンク間の流路を開くことにより、被検体毎
に薄膜に加わる圧力の調整が可能となり、薄膜の被検体
への密着性の向上，超音波の入射角，視野深度の改善及
び薄膜のしわの発生防止等が図れ、薄膜の長所を生かし
欠点を最小限にとどめて良質な断層像を得ることに寄与
し得る医用超音波装置用水槽を提供し得るものである。According to the present invention described in detail above, since the thin film is provided in the opening provided in the upper part of the water tank body and the acoustic coupling agent is housed inside the water tank body, the burden on the subject is increased. It is possible to control the pressure applied to the thin film for each specimen by opening the flow path between the main body of the water tank and the spare tank while reducing the size of the entire structure, and the adhesion of the thin membrane to the specimen. Medical ultrasound that contributes to obtaining high-quality tomographic images by improving the characteristics of the thin film, improving the incident angle of ultrasonic waves, improving the depth of field, and preventing wrinkles from occurring in the thin film. It is possible to provide a water tank for the apparatus.
【図１】本発明の医用超音波装置用水槽の一実施例を示
す概略断面図である。FIG. 1 is a schematic cross-sectional view showing an embodiment of a water tank for a medical ultrasonic device of the present invention.
【図２】超音波の集束及び広がりを示す説明図である。FIG. 2 is an explanatory diagram showing focusing and spreading of ultrasonic waves.
【図３】従来の水袋を示す概略断面図である。FIG. 3 is a schematic sectional view showing a conventional water bag.
【図４】従来の水槽を示す概略断面図である。FIG. 4 is a schematic sectional view showing a conventional water tank.
【図５】従来の水槽の他例を示す概略断面図である。FIG. 5 is a schematic sectional view showing another example of a conventional water tank.
１０ 水槽 １１ 水槽本体 １２ 薄膜 １４ 音響結合剤としての水 ２１ 予備タンク ２１ａ 大気開放孔 Ａ 圧力制御手段 10 Water Tank 11 Water Tank Main Body 12 Thin Film 14 Water as Acoustic Coupling Agent 21 Preliminary Tank 21a Atmosphere Opening Hole A Pressure Control Means
Claims (1)
備え、前記水槽本体内部に音響結合剤を収納する医用超
音波装置用水槽において、前記水槽本体内部の圧力を制
御するために、大気開放孔を備え音響結合剤を収納する
予備タンクを有することを特徴とする医用超音波装置用
水槽。1. In a water tank for a medical ultrasonic device, wherein a thin film is provided in an opening provided in an upper portion of the water tank body, and an acoustic coupling agent is stored in the water tank body, in order to control a pressure inside the water tank body, A water tank for a medical ultrasonic device, comprising a preliminary tank having an air opening hole and accommodating an acoustic coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4206325A JPH0767453B2 (en) | 1992-08-03 | 1992-08-03 | Water tank for medical ultrasonic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4206325A JPH0767453B2 (en) | 1992-08-03 | 1992-08-03 | Water tank for medical ultrasonic device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59017092A Division JPH074366B2 (en) | 1984-02-03 | 1984-02-03 | Water tank for medical ultrasonic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05220148A true JPH05220148A (en) | 1993-08-31 |
| JPH0767453B2 JPH0767453B2 (en) | 1995-07-26 |
Family
ID=16521432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4206325A Expired - Lifetime JPH0767453B2 (en) | 1992-08-03 | 1992-08-03 | Water tank for medical ultrasonic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0767453B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017187608A1 (en) * | 2016-04-28 | 2017-11-02 | 株式会社日立製作所 | Ultrasonic imaging device, and ultrasonic transmission/reception method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52484A (en) * | 1975-05-01 | 1977-01-05 | Commw Of Australia | Method and device for test by supersonic waves |
-
1992
- 1992-08-03 JP JP4206325A patent/JPH0767453B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52484A (en) * | 1975-05-01 | 1977-01-05 | Commw Of Australia | Method and device for test by supersonic waves |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017187608A1 (en) * | 2016-04-28 | 2017-11-02 | 株式会社日立製作所 | Ultrasonic imaging device, and ultrasonic transmission/reception method |
| JPWO2017187608A1 (en) * | 2016-04-28 | 2018-06-28 | 株式会社日立製作所 | Ultrasonic imaging apparatus and ultrasonic transmission / reception method |
| US11045168B2 (en) | 2016-04-28 | 2021-06-29 | Hitachi, Ltd. | Ultrasonic imaging device, and ultrasonic transmission/reception method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0767453B2 (en) | 1995-07-26 |
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