JPS63302836A - Ultrasonic diagnostic apparatus for endoscope - Google Patents
Ultrasonic diagnostic apparatus for endoscopeInfo
- Publication number
- JPS63302836A JPS63302836A JP13899087A JP13899087A JPS63302836A JP S63302836 A JPS63302836 A JP S63302836A JP 13899087 A JP13899087 A JP 13899087A JP 13899087 A JP13899087 A JP 13899087A JP S63302836 A JPS63302836 A JP S63302836A
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- ultrasonic
- endoscope
- vibrator
- channel
- 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
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 230000000474 nursing effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 27
- 230000037431 insertion Effects 0.000 description 27
- 230000005540 biological transmission Effects 0.000 description 20
- 238000004891 communication Methods 0.000 description 11
- 238000002604 ultrasonography Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000009558 endoscopic ultrasound Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 235000001270 Allium sibiricum Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003325 tomography 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〕
この発明は、内視鏡のチャンネルに挿通して用いる超音
波診断装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasonic diagnostic device that is used by being inserted into a channel of an endoscope.
内視鏡の挿入先端部に超音波振動子を組込んだ超音波内
視鏡は、従来より種々の構成のものが提案されている。2. Description of the Related Art Ultrasonic endoscopes having an ultrasonic transducer incorporated in the insertion tip of the endoscope have been proposed in various configurations.
例えば、内視鏡の挿入先端部に回転自在に超音波振動子
を設け、これを挿入部内を通して延在させたフレキシブ
ル回転軸を介してモータにより回転さ伊るようにした機
械走査方式の超音波内視鏡や、挿入先端部に多数の超音
波振動子を配列して設け、これらを所定の位相関係を有
する信号で駆動することによりリニアスキャンまたはセ
クタスキャンを行うようにした電子走査式超音波内視鏡
が提案されている。For example, a mechanical scanning type ultrasound system uses a rotatable ultrasonic transducer installed at the insertion tip of an endoscope, which is rotated by a motor via a flexible rotating shaft that extends through the insertion section. Electronic scanning ultrasound that performs linear scanning or sector scanning by arranging a large number of ultrasound transducers at the endoscope or insertion tip and driving them with signals that have a predetermined phase relationship. Endoscopy has been proposed.
しかしながら、このように超音波振動子を組込んだ超音
波内視鏡にあっては、体腔内に挿入される挿入部の内部
に、内視鏡として本来内蔵されるイメージガイド、ライ
トガイド、鉗子チャンネノペ送気・送水チャンネル等の
他に、超音波振動子およびこれに接続された導線や、機
械走査方式にあっては超音波振動子に回転力を伝達する
だめのフレキシブル回転軸等が内蔵されるため必然的に
直径が大きくなり、被検者に苦痛を与えるという欠点が
あった。However, in an ultrasonic endoscope that incorporates an ultrasonic transducer in this way, the image guide, light guide, and forceps that are originally built into the endoscope are placed inside the insertion section that is inserted into the body cavity. In addition to the air and water channels, the ultrasonic vibrator and conductor wires connected to it are built-in, as well as the flexible rotating shaft that transmits rotational force to the ultrasonic vibrator in the case of mechanical scanning systems. This inevitably results in a large diameter, which has the disadvantage of causing pain to the subject.
このような欠点を除去するものとして、内視鏡自体が有
する例えば鉗子チャンネルを利用し、このチャンネルを
通して先端部に超音波振動子を有する超音波プローブを
体腔内に挿入すとともに、プローブ内で超音波振動子を
挿入方向に移動して機械的にリニア走査させるようにし
た内視鏡用超音波診断装置が提案された。In order to eliminate such drawbacks, an ultrasound probe having an ultrasound transducer at the tip is inserted into the body cavity through the forceps channel of the endoscope itself, and the ultrasound probe is inserted into the body cavity through this channel. An endoscopic ultrasonic diagnostic device has been proposed in which a sonic transducer is moved in the insertion direction to perform mechanical linear scanning.
上述した内視鏡用超音波診断装置は、超音波プローブを
内視鏡に本来設けられている鉗子チャンネ等から挿入す
るようにしているので、内視鏡の挿入部の径を太くする
必要がなく、従って大径化による被検者への苦痛の問題
を有効に解決することができる。In the endoscopic ultrasound diagnostic device described above, the ultrasound probe is inserted through the forceps channel etc. originally provided in the endoscope, so it is necessary to increase the diameter of the insertion section of the endoscope. Therefore, it is possible to effectively solve the problem of pain to the subject due to the enlargement of the diameter.
しかしながら、この種の従来の内視鏡用超音波診断装置
にあっては、超音波振動子をプローブ内で挿入方向に移
動させる走査駆動部が、内視鏡の操作部に設けられてい
る例えば鉗子チャンネルの人口に連結できる構成とはな
っておらず、その使用にあたってはその重い走査駆動部
を介助者が手で持つようにしている。このため、操作性
が悪く、超音波プローブの先端位置がふらついて目的部
位の安定した超音波断層像が得られないという問題があ
った。However, in this type of conventional endoscopic ultrasonic diagnostic apparatus, a scanning drive unit that moves an ultrasonic transducer in the insertion direction within the probe is provided in the operation unit of the endoscope, for example. It does not have a configuration that can be connected to the forceps channel, and when using it, the heavy scanning drive unit must be held by a caregiver. For this reason, there have been problems in that the operability is poor and the tip position of the ultrasound probe is unstable, making it impossible to obtain a stable ultrasound tomographic image of the target region.
この発明は、このような従来の問題点に着目してなされ
たもので、操作性が良く、目的部位の安定した超音波断
層像を容易に得ることができるよう適切に構成した内視
鏡用超音波診断装置を提供することを目的とする。This invention was made in view of these conventional problems, and it is an endoscope that has good operability and is appropriately configured to easily obtain stable ultrasonic tomographic images of the target area. The purpose is to provide an ultrasonic diagnostic device.
上記目的を達成するため、この発明ではシース内で超音
波振動子をその挿入方向に移動させる駆動部を、連結部
材によってシースが挿入される内視鏡のチャンネルに連
結し得るよう構成する。In order to achieve the above object, the present invention is configured such that a drive unit that moves the ultrasonic transducer in the insertion direction within the sheath can be connected to a channel of an endoscope into which the sheath is inserted by a connecting member.
このように、内視鏡用超音波振動子の駆動部を連結部材
によってシースを挿入する内視鏡のチャンネルに連結で
きるようにすれば、駆動部を手で持つ必要がなくなると
ともに、内視鏡とシースとが一体的となり、超音波振動
子を有するシース先端部がふらつくこともない。In this way, if the drive part of the ultrasonic transducer for an endoscope can be connected to the channel of the endoscope into which the sheath is inserted using the connecting member, it will not be necessary to hold the drive part by hand, and the endoscope Since the sheath and the sheath are integrated, the sheath tip having the ultrasonic transducer does not wobble.
第１図はこの発明の第１実施例を示すもので、内視鏡に
装着した状態を示す。内視鏡１は、周知のように、操作
部２、挿入部３およびユニバーサルコード４を有してい
る。挿入部３は軟性部５、湾曲部６および先端部７から
成り、この挿入部３および操作部２内を延在してイメー
ジガイド、ライトガイド等が設けられている。ライトガ
イドの入射端はユニバーサルコード４を介して図示しな
い光源ユニットに接続され、これによりライトガイドを
介して先端部７から体腔内を照明し、その体腔内の像を
イメージガイドを介して接眼部８から観察するようにな
っている。また、操作部２には鉗子口９が設けられてい
るとともに、この鉗子口９に連通して挿入部３内にチャ
ンネルが延在して形成され、これら鉗子口９およびチャ
ンネルを通して体腔内に鉗子を挿入して組織を採取し得
るようになっている。FIG. 1 shows a first embodiment of the present invention, and shows a state where it is attached to an endoscope. As is well known, the endoscope 1 includes an operating section 2, an insertion section 3, and a universal cord 4. The insertion section 3 consists of a flexible section 5, a curved section 6, and a tip section 7, and extends inside the insertion section 3 and the operating section 2, and is provided with an image guide, a light guide, and the like. The incident end of the light guide is connected to a light source unit (not shown) via the universal cord 4, which illuminates the inside of the body cavity from the tip 7 through the light guide, and displays the image inside the body cavity through the image guide. Observation begins from section 8. Further, the operation section 2 is provided with a forceps port 9, and a channel is formed extending into the insertion section 3 in communication with the forceps port 9, and the forceps can be inserted into the body cavity through the forceps port 9 and the channel. can be inserted to collect tissue.
この実施例の超音波診断装置１１は、上述した内視鏡１
の鉗子口９およびこれに連通ずるチャンネルを利用して
装着されるもので、前記鉗子口９およびこれに連通ずる
チャンネル内に挿入可能で先端部内に超音波振動子を有
するシース１２と、超音波振動子をシース１２内でその
長手方向に移動させる走査駆動部１３と、この走査駆動
部１３を鉗子口９に連結する連結部材１４と、超音波振
動子を送受信装置に連結するとともに走査駆動部を駆動
源に連結するためのコネルクタ１５とを具える。The ultrasonic diagnostic apparatus 11 of this embodiment includes the endoscope 1 described above.
The sheath 12 is inserted into the forceps port 9 and the channel communicating with the forceps port 9 and has an ultrasonic transducer in the distal end thereof. A scanning drive unit 13 that moves the transducer in its longitudinal direction within the sheath 12, a connecting member 14 that connects the scanning drive unit 13 to the forceps port 9, and a scanning drive unit that connects the ultrasonic transducer to a transmitting/receiving device. and a connector 15 for connecting the drive source to a drive source.
以下、この超音波診断装置１１の詳細な構成について第
２〜５図を参照して説明する。The detailed configuration of this ultrasonic diagnostic apparatus 11 will be described below with reference to FIGS. 2 to 5.
内視鏡１の鉗子口９ふよびこれに連通するチャンネル１
６に挿通可能なシース１２は、例えばテフロンチニーブ
をもって構成し、その挿入先端部側面にはシース１２の
長手方向に沿って超音波送受信用窓１７を設けるととも
に、内部には窓１７と対向してシース１２の長手方向に
移動可能に保持部材１８に保持して超音波振動子１９を
設け、この振動子１９の保持部材１８をシース１２内に
延在して設けたコイルシャフトまたは中空のワイヤより
成る伝達軸２０の一端部に連結する。なお、窓１７の振
動子１９が対向する面上には、振動子１９の移動範囲に
亘ってグリース等の超音波伝達媒体２１を設けておく。Forceps port 9 of endoscope 1 and channel 1 communicating with it
The sheath 12 that can be inserted into the sheath 12 has a Teflon chive, for example, and has a window 17 for transmitting and receiving ultrasonic waves along the longitudinal direction of the sheath 12 on the side surface of its insertion tip. An ultrasonic transducer 19 is provided so as to be held by a holding member 18 so as to be movable in the longitudinal direction of the sheath 12, and a coil shaft or hollow wire provided with the holding member 18 of the transducer 19 extending inside the sheath 12. The transmission shaft 20 is connected to one end of the transmission shaft 20. Note that an ultrasonic transmission medium 21 such as grease is provided on the surface of the window 17 that faces the transducer 19 over the movement range of the transducer 19.
走査駆動部１３は、外筒２２、この外筒２２内に形成し
たシリンダ２３およびこのシリンダ２３内を移動するピ
ストン２４を有するエアシリンダをもって構成し、外筒
２２にシース１２の後端部を、ピストン２４０ロツド２
５に伝達軸２０の他端部をそれぞれ連結する。The scanning drive unit 13 includes an air cylinder having an outer cylinder 22, a cylinder 23 formed in the outer cylinder 22, and a piston 24 that moves within the cylinder 23. piston 240 rod 2
5 and the other end of the transmission shaft 20 are connected to each other.
ピストン２４にはシール部材２６を設け、このシール部
材２６をシリンダ２３に摺接させるようにするとともに
、外筒２２にはロッド２５が摺接するようにシール部材
２７およびリニアボールベアリング２８を設ケる。また
、シリンダ２３内にはピストン２４の上死点位置および
下死点位置をそれぞれ検知して超音波振動子１９の往復
移動の周期のタイミングを得るためマイクロスイッチ２
９．３０を設け、これらマイクロスイッチの検知信号を
コネクタ１５を介して送受信装置３１に供給するように
する。A seal member 26 is provided on the piston 24, and the seal member 26 is brought into sliding contact with the cylinder 23, and a seal member 27 and a linear ball bearing 28 are provided on the outer cylinder 22 so that the rod 25 comes into sliding contact. . Further, a microswitch 2 is provided in the cylinder 23 to detect the top dead center position and the bottom dead center position of the piston 24 to obtain the timing of the reciprocating cycle of the ultrasonic transducer 19.
9.30 are provided, and the detection signals of these microswitches are supplied to the transmitting/receiving device 31 via the connector 15.
なお、超音波振動子１９の信号ケーブル３２は伝達軸２
０、走査駆動部１３およびコネクタ１５を通して送受信
装置３１に接続する。Note that the signal cable 32 of the ultrasonic transducer 19 is connected to the transmission shaft 2.
0, is connected to the transmitting/receiving device 31 through the scanning driver 13 and connector 15.
外筒２２には、シリンダ２３の上端部および下端部にそ
れぞれ連通して連通口３３．３４を設け、これら連通口
をコネクタ１５を介して駆動源３５に連結して連通口３
３および３４に選択的にエアーを供給するようにし、こ
れによりピストン２４をシリンダ２３内で摺動させて伝
達軸２０を介して超音波振動子１９をシース１２の長手
方向に移動させるようにする。The outer cylinder 22 is provided with communication ports 33 and 34 that communicate with the upper and lower ends of the cylinder 23, respectively, and these communication ports are connected to the drive source 35 via the connector 15.
3 and 34, thereby causing the piston 24 to slide within the cylinder 23 and moving the ultrasonic transducer 19 in the longitudinal direction of the sheath 12 via the transmission shaft 20. .
駆動源３５には管路切換弁３６および送気ポンプ３７を
設ける。管路切換弁３６はマイクロスイッチ２９．３０
の検知信号によって駆動されるソレノイド３８および付
勢ばね３９により両矢印で示す方向に移動可能に設ける
。この管路切換弁３６には管路４０〜４３を形成し、ピ
ストン２４を第２図において上方に移動させるときは、
ソレノイド３８をオフにして付勢ばね３９により管路切
換弁３６を上方に移動させて連通口３３を管路４１を介
して外部に解放するとともに、連通口３４を管路４０を
介して送気ポンプ３７に連結して連通口３４からシリン
ダ２３内にエアーを供給するようにし、またピストン２
４を下方に移動させるときはソレノイド３８をオンして
管路切換弁３６を付勢ばね３９の力に抗して下方に移動
させて連通口３３を管路４２を介して送気ポンプ３７に
連結するとともに、連通口３４を管路４３を介して外部
に解放して連通口、３３からシリンダ２３内にエアーを
供給するようにする。The drive source 35 is provided with a pipe switching valve 36 and an air pump 37. The pipe switching valve 36 is a micro switch 29.30
It is provided movably in the direction shown by the double arrow by a solenoid 38 and a biasing spring 39 which are driven by a detection signal. This pipe switching valve 36 is formed with pipes 40 to 43, and when the piston 24 is moved upward in FIG.
The solenoid 38 is turned off and the biasing spring 39 moves the conduit switching valve 36 upward to release the communication port 33 to the outside via the conduit 41, and at the same time, the communication port 34 is used to supply air via the conduit 40. It is connected to the pump 37 to supply air into the cylinder 23 from the communication port 34, and the piston 2
4, turn on the solenoid 38, move the pipe switching valve 36 downward against the force of the biasing spring 39, and connect the communication port 33 to the air supply pump 37 via the pipe 42. At the same time, the communication port 34 is opened to the outside through the conduit 43, so that air is supplied from the communication port 33 into the cylinder 23.
この実施例では走査駆動部１３の外筒２２に筒状の連結
部材１４を設け、この連結部材１４を連結ビス４６によ
り鉗子口９に固定するようにする。なふ、連結部材１４
にはその内周面にゴム等より成る弾性摩擦体４７を設け
、その摩擦力で外筒２２を連結部材１４にスライドおよ
び回転可能に保持するようにする。In this embodiment, a cylindrical connecting member 14 is provided on the outer cylinder 22 of the scanning drive unit 13, and the connecting member 14 is fixed to the forceps mouth 9 with a connecting screw 46. Nafu, connecting member 14
An elastic friction member 47 made of rubber or the like is provided on the inner peripheral surface of the outer cylinder 22 so that the outer cylinder 22 is slidably and rotatably held on the connecting member 14 by its frictional force.
このように、走査駆動部１３を連結部材１４を介して鉗
子口９に固定するようにすれば、これを介助者が手で持
つ必要がないので、操作性が向上するとともに、シース
１２の挿入先端部がふらつくこともなく、したがって目
的部位の安定した超音波断層像を容易に得ることができ
る。In this way, by fixing the scanning drive unit 13 to the forceps port 9 via the connecting member 14, there is no need for the caregiver to hold it by hand, which improves operability and facilitates insertion of the sheath 12. The tip does not wobble, and therefore a stable ultrasonic tomographic image of the target area can be easily obtained.
第６図はこの発明の第２実施例の要部を示すものである
。この実施例はエアシリンダをシース１２の挿入先端部
に形成したものである。シース１２にはその先端部に超
音波振動子１９がシース長手方向に移動するためのシリ
ンダ部５１を形成するとともに、シース１２の長手方向
に沿ってエアー通路５２を形成する。シリンダ部５１お
よびエアー通路５２のシース先端面は埋込み部材５３．
５４によって密閉し、エアー通路５２はそのシース先端
部において連通部材５５を介してシリンダ部５１に連通
させる。また、振動子１９の超音波送受信面には音響レ
ンズ５６を設け、この音響レンズ５６および振動子１９
の保持部材１８をシリンダ部５１の内周面に摺接させて
振動子１９′と一体に往復移動させるようにするととも
に、その往復移動の周期のタイングを得るためシリンダ
部５１に音響レンズ５６の側面に当接し得るようにマイ
クロスイッチ２９．３０を設ける。なお、シリンダ部５
１′Ｊ６よび保持部材１８の摺接面の一部には、振動子
１９の回転を防止するため、その移動方向に沿って平坦
部を形成しておく。FIG. 6 shows the main part of a second embodiment of the invention. In this embodiment, an air cylinder is formed at the insertion tip of the sheath 12. The sheath 12 has a cylinder portion 51 formed at its distal end for the ultrasonic transducer 19 to move in the longitudinal direction of the sheath, and an air passage 52 along the longitudinal direction of the sheath 12. The distal end surfaces of the sheaths of the cylinder portion 51 and the air passage 52 are connected to the embedded member 53.
54, and the air passage 52 is communicated with the cylinder portion 51 via a communication member 55 at the distal end of the sheath. Further, an acoustic lens 56 is provided on the ultrasonic transmitting/receiving surface of the transducer 19, and the acoustic lens 56 and the transducer 19
The holding member 18 is brought into sliding contact with the inner circumferential surface of the cylinder part 51 so that it can reciprocate together with the vibrator 19', and an acoustic lens 56 is attached to the cylinder part 51 in order to obtain the timing of the period of the reciprocating movement. Microswitches 29 and 30 are provided so as to be able to abut against the sides. In addition, the cylinder part 5
In order to prevent rotation of the vibrator 19, a flat portion is formed on a portion of the sliding surfaces of the vibrator 1'J6 and the holding member 18 along the direction of movement thereof.
このようにして、シース１２の後端部からシリンダ部５
１およびエア７通路５２に一方を外部に解放して選択的
にエアーを供給することにより振動子１９をシース長手
方向に往復移動させる。In this way, from the rear end of the sheath 12 to the cylinder part 5
The vibrator 19 is reciprocated in the longitudinal direction of the sheath by selectively supplying air to the passages 1 and 7, one of which is released to the outside.
この実施例によれば、第１実施例のような伝達軸２０を
用いることなく、シース１２の先端部において振動子１
９をエアーにより直接往復移動させるようにしているの
で、第１実施例におけるような伝達軸２０でのロスがな
く、振動子１９の往復レスポンスが正確になるという利
点がある。According to this embodiment, the transducer 1 is placed at the distal end of the sheath 12 without using the transmission shaft 20 as in the first embodiment.
Since the transducer 9 is directly reciprocated by air, there is no loss in the transmission shaft 20 as in the first embodiment, and there is an advantage that the reciprocating response of the vibrator 19 is accurate.
第７図ＡおよびＢはこの発明の第３実施例の要部を示す
ものである。この実施例は超音波振動子１９をスクリュ
ーとナツトとの組合せによってシース１２の挿入先端部
において長手方向に往復移動させるようにしたものであ
る。シース１２の挿入先端部内にはベアリング６１．６
２によって軸受けしてスクリュー６３を回転自在に設け
、このスクリュー６３をシース１２内に延在して設けた
コイルシャフト等の可撓性の伝達軸６４を介して走査駆
動部に設けられるモータ６５に連結して正逆方向に回転
させるようにする。スクリュー６３にはシース内をその
長手方向に摺動し得るようにナツト６６を螺合し、この
ナツト６６に保持部材１８を介して超音波振動子１９を
保持する。このようにして、モータ６５により伝達軸６
４を介してスクリュー６３を正逆方向に回転させて、振
動子１９をシース１２の挿入先端部においてその長手方
向に往復移動させる。FIGS. 7A and 7B show main parts of a third embodiment of the invention. In this embodiment, the ultrasonic transducer 19 is moved back and forth in the longitudinal direction at the insertion tip of the sheath 12 by a combination of a screw and a nut. A bearing 61.6 is located inside the insertion tip of the sheath 12.
2, a screw 63 is rotatably provided, and this screw 63 is connected to a motor 65 provided in the scanning drive unit via a flexible transmission shaft 64 such as a coil shaft provided extending inside the sheath 12. Connect them so that they can rotate in forward and reverse directions. A nut 66 is screwed onto the screw 63 so as to be slidable in the longitudinal direction within the sheath, and the ultrasonic transducer 19 is held by the nut 66 via the holding member 18. In this way, the motor 65 causes the transmission shaft 6 to
The screw 63 is rotated in the forward and reverse directions via the sheath 12 to reciprocate the vibrator 19 in the longitudinal direction at the insertion tip of the sheath 12.
第８図ＡおよびＢはこの発明の第４実施例の要部を示す
ものである。この実施例ではシース１２の挿入先端部内
に雌ねじ部７１を形成するとともに、この雌ねじ部７１
に螺合して雄ねじ部７２を設け、この雄ねじ部７２に保
持部材１８を介して超音波振動子１９を設ける。雄ねじ
部７２にはシース１２内に延在して設けた可撓性の伝達
軸７３の一端部を連結し、この伝達軸７３の他端部を走
査駆動部においてフオームギヤ機構７４等を介してモー
タ７５に連結して伝達軸７３および雄ねじ部７２を一体
に正逆方向に回転させて軸方向に往復移動させるように
する。なお、シース１２の挿入先端部側壁にはシース長
手方向に沿って超音波送受信用の窓７６を形成するとと
もに、伝達軸７３はシース１２の挿入先端部においてリ
ニアボールベアリング７７によって回転および摺動可能
に軸受けする。このようにして、モータ７５により伝達
軸７３および雄ねじ部７２を一体に正逆方向に回転させ
ながらそれらを軸方向に往復移動させ、振動子１９が窓
７６と対向する１回転毎に超音波を送受（５ずろように
して断層イ象を得ろっ
第９図はこの発明の第５実施例の要部を示すものである
。この実施例では走査駆動部にシリング８１およびピス
トン８２を設け、このピストン８２にシースの挿入先端
部にその長手方向に移動可能に設けた超音波振動子１９
を、シース内に延在して設けた可撓性の伝達軸８３を介
して連結して、ピストン８２を走査駆動部においてクラ
ンク機構８４によりシリンダ８１内で往復移動させるこ
とにより、振動子１９をシースの挿入先端部においてリ
ニア走査するようにしたものである。FIGS. 8A and 8B show essential parts of a fourth embodiment of the present invention. In this embodiment, a female threaded portion 71 is formed inside the insertion tip of the sheath 12, and this female threaded portion 71 is
A male threaded portion 72 is provided by screwing into the male threaded portion 72, and an ultrasonic vibrator 19 is provided to this male threaded portion 72 via a holding member 18. One end of a flexible transmission shaft 73 provided extending inside the sheath 12 is connected to the male threaded portion 72, and the other end of this transmission shaft 73 is connected to a motor via a form gear mechanism 74 or the like in a scanning drive section. 75 so that the transmission shaft 73 and the male threaded portion 72 are integrally rotated in forward and reverse directions and reciprocated in the axial direction. A window 76 for transmitting and receiving ultrasonic waves is formed along the longitudinal direction of the sheath on the side wall of the insertion tip of the sheath 12, and the transmission shaft 73 is rotatable and slidable by a linear ball bearing 77 at the insertion tip of the sheath 12. Bearing on. In this way, the motor 75 rotates the transmission shaft 73 and the male screw portion 72 integrally in the forward and reverse directions while reciprocating them in the axial direction, and the transducer 19 emits ultrasonic waves every time it rotates facing the window 76. Figure 9 shows the main part of the fifth embodiment of this invention. In this embodiment, the scanning drive section is provided with a sill 81 and a piston 82. An ultrasonic transducer 19 is provided at the insertion tip of the sheath on the piston 82 so as to be movable in the longitudinal direction.
are connected via a flexible transmission shaft 83 provided extending inside the sheath, and the piston 82 is reciprocated within the cylinder 81 by a crank mechanism 84 in the scanning drive section, thereby transmitting the vibrator 19. Linear scanning is performed at the insertion tip of the sheath.
第１Ｏ図ＡおよびＢはこの発明の第６実施例の要部を示
すものである。この実施例では走査駆動部にカム機構９
１を設け、このカム機構９１の従動子９２とシースの挿
入先端部に設けた超音波振動子１９とをシース内に延在
して設けた可撓性の伝達軸９３によって連結して、カム
機構９１の回転により振動子１９を第１０図已に示すよ
うに往動と復動とにおいて等しい速度で往復動させるよ
うにしたものである。FIGS. 10A and 10B show essential parts of a sixth embodiment of the present invention. In this embodiment, a cam mechanism 9 is provided in the scanning drive section.
1 is provided, and the follower 92 of this cam mechanism 91 and the ultrasonic transducer 19 provided at the insertion tip of the sheath are connected by a flexible transmission shaft 93 provided extending inside the sheath. As shown in FIG. 10, the rotation of the mechanism 91 causes the vibrator 19 to reciprocate at the same speed in forward and backward movements.
第１１図Ａ、 ＢおよびＣはこの発明の第７実施例の要
部を示すものであろっこの実施例て：′土ンース１２の
挿入先端部において超音波復動子１９の位置を検出する
ため、シース１２に形成した超音波送受信用窓９５に、
振動子１９の移動方向に沿って等ピッチに複数の超音波
反射部９６を設け、これら超音波反射部９６で反射され
る超音波の受信信号に基づいて振動子１９の位置を検出
するようにしたものである。FIGS. 11A, B, and C show the main parts of a seventh embodiment of the present invention. In this embodiment: 'Detecting the position of the ultrasonic transducer 19 at the insertion tip of the soil base 12. Therefore, in the ultrasonic transmission/reception window 95 formed in the sheath 12,
A plurality of ultrasonic reflecting sections 96 are provided at equal pitches along the moving direction of the transducer 19, and the position of the transducer 19 is detected based on received signals of ultrasonic waves reflected by these ultrasonic reflecting sections 96. This is what I did.
このように、窓９５に超音波反射部９６を設けると、そ
れに対応して超音波像にも第１１図Ｂに示すように強エ
コーのライン９７が現れるが、このようなライン９７は
適当な画像処理を施すことにより第１１図Ｃに示すよう
に、観察に支障がない程度に極めて細くすることができ
る。When the ultrasonic reflecting portion 96 is provided in the window 95 in this way, a strong echo line 97 appears in the ultrasonic image as shown in FIG. 11B, but such a line 97 can be As shown in FIG. 11C, by performing image processing, it can be made extremely thin to the extent that it does not interfere with observation.
なお、この発明は上述した実施例にのみ限定されるもの
ではなく、幾多の変形又は変更が可能である。例えば、
第１および２実施例においてはマイクロスイッチ２９．
３０によって振動子１９の往復移動の周期のタイミング
を得るようにしたが、このようなタイミング信号をうる
ための検出器はマイクロスイッチに限らずフォトリフレ
クタやＭＲセンサ等を用いることもできる。It should be noted that the present invention is not limited only to the embodiments described above, and numerous modifications and changes are possible. for example,
In the first and second embodiments, the microswitch 29.
30, the timing of the reciprocating movement period of the vibrator 19 is obtained, but the detector for obtaining such a timing signal is not limited to a microswitch, but a photoreflector, MR sensor, etc. can also be used.
以上述べたように、この発明によれば駆動部を連結部材
を介して内視鏡のチャンネルに連結できるようにしたの
で、操作性を向上することができるとともに、目的部位
の安定した超音波断層像を容易に得ることができる。As described above, according to the present invention, the driving section can be connected to the channel of the endoscope via the connecting member, so that operability can be improved and ultrasonic tomography of the target area can be performed stably. Images can be easily obtained.
第１図はこの発明の第１実施例を示す図、第２図〜第５
図は第１図に示す超音波診断装置の詳細な構成を示す図
、
第６図はこの発明の第２実施例の要部を示す図、第７図
ＡおよびＢは同じく第３実施例の要部を示す図、
第８図ＡおよびＢは同じく第４実施例の要部を示す図、
第９図は同じく第５実施例の要部を示す図、第１０図Ａ
およびＢは同じく第６実施例の要部の構成および動作を
示す図、
第１１図Ａ、 ＢおよびＣは同じく第７実施例を説明す
るための図である。
ｌ・・・内視鏡 ２・・・操作部３・・・挿
入部４・・・ユニバーサルコード５・・・軟性部
６・・・湾曲部７・・・先端部 訃・
・接眼部９・・・鉗子口 １１・・・超音波
診断装置１２・・・シース １３・・・走査
駆動部１４・・・連結部材 １５・・・コネク
タ１６・・・チャンネル １７・・・窓１８・・
・保持部材 １９・・・超音波振動子２０・・
・伝達軸 ２１・・・超音波伝達媒体２２・
・・外筒 ２３・・・シリンダ２４・・・
ピストン ２５・・・ロッド２６、２７・・・
シール部材 ２８・・・リニアボールベアリング２９
、．３０・・・マイクロスイッチ
３１・・・送受信装置 ３２・・・信号ケーブル
３３、３４・・・連通口 ３５・・・駆動源３６・
・・管路切換弁 ３７・・・送気ポンプ３８・・
・ソレノイド ３９・・・付勢ばね４０、４１．
４２．４３・・・管路 ４６・・・連結ビス・１７・
・・弾性摩擦体
特許出願人 オリンパス光学工業株式会社代理人弁理
士 杉 村 興 作第２図
手 続 補 正 書
昭和６２年１０月 １日
特許庁長官 小 川 邦 夫 殿１、事件の
表示
昭和６２年特許願第１３８９９０号
２、発明の名称
内視鏡用超音波診断装置
３、補正をする者
事件との関係 特許出顆人
（０３７） オリンパス光学工業株式会社４、代理人
１、明細書第６頁第５行の「コネルクタ１５」を「コネ
クタ１５」に訂正する。FIG. 1 is a diagram showing a first embodiment of the present invention, and FIGS.
The figure shows the detailed configuration of the ultrasonic diagnostic apparatus shown in FIG. 1, FIG. 6 shows the main part of the second embodiment of the invention, and FIGS. 7A and B show the third embodiment. Figures 8A and 8B are diagrams showing the main parts of the fourth embodiment. Figure 9 is a diagram showing the main parts of the fifth embodiment. Figure 10A is a diagram showing the main parts of the fifth embodiment.
11B and 11B are diagrams showing the configuration and operation of the main parts of the sixth embodiment, and FIGS. 11A, B, and C are diagrams for explaining the seventh embodiment. l...Endoscope 2...Operation section 3...Insertion section 4...Universal cord 5...Flexible part
6...Curved part 7...Tip part
- Eyepiece part 9... Forceps port 11... Ultrasonic diagnostic device 12... Sheath 13... Scanning drive unit 14... Connection member 15... Connector 16... Channel 17... Window 18...
・Holding member 19... Ultrasonic vibrator 20...
・Transmission shaft 21...Ultrasonic transmission medium 22・
...Outer tube 23...Cylinder 24...
Piston 25...Rod 26, 27...
Seal member 28...Linear ball bearing 29
,． 30... Micro switch 31... Transmitting/receiving device 32... Signal cables 33, 34... Communication port 35... Drive source 36.
... Pipe switching valve 37 ... Air pump 38 ...
・Solenoid 39...Biasing spring 40, 41.
42.43...Pipeline 46...Connection screw・17・
...Elastic Friction Body Patent Applicant Olympus Optical Industry Co., Ltd. Representative Patent Attorney Oki Sugimura Diagram 2 Proceedings Amendment Written October 1, 1986 Director General of the Patent Office Kunio Ogawa 1, Indication of the Case Showa 1962 Patent Application No. 138990 2, Name of the invention Endoscopic ultrasound diagnostic device 3, Relationship with the person making the amendment case Patent applicant (037) Olympus Optical Industry Co., Ltd. 4, Agent 1, Specification Correct "Connector 15" in the 5th line of page 6 to "Connector 15".
Claims (1)
シース内でその長手方向に沿って移動可能に設けた超音
波振動子と、前記シースの後端部に連結され、前記超音
波振動子を前記シースの長手方向に移動させる駆動部と
、この駆動部を内視鏡のチャンネルに連結する連結部材
とを具える内視鏡用超音波診断装置。1. A sheath that can be inserted into a channel of an endoscope; an ultrasonic vibrator that is movable along the longitudinal direction within the sheath; and an ultrasonic vibrator that is connected to the rear end of the sheath, and that An ultrasonic diagnostic device for an endoscope, comprising: a drive unit that moves the child in the longitudinal direction of the sheath; and a connecting member that connects the drive unit to a channel of an endoscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62138990A JP2746584B2 (en) | 1987-06-04 | 1987-06-04 | Ultrasound diagnostic equipment for endoscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62138990A JP2746584B2 (en) | 1987-06-04 | 1987-06-04 | Ultrasound diagnostic equipment for endoscopes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63302836A true JPS63302836A (en) | 1988-12-09 |
| JP2746584B2 JP2746584B2 (en) | 1998-05-06 |
Family
ID=15234905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62138990A Expired - Lifetime JP2746584B2 (en) | 1987-06-04 | 1987-06-04 | Ultrasound diagnostic equipment for endoscopes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2746584B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189139A (en) * | 1989-01-19 | 1990-07-25 | Olympus Optical Co Ltd | Internal visual ultrasonic diagnosing device |
| JPH02141421U (en) * | 1989-04-28 | 1990-11-28 | ||
| JPH0347244A (en) * | 1989-04-27 | 1991-02-28 | Olympus Optical Co Ltd | Ultrasonic probe |
| JPH04815U (en) * | 1990-04-18 | 1992-01-07 | ||
| JPH0515538A (en) * | 1991-07-11 | 1993-01-26 | Fuji Photo Optical Co Ltd | Byplane type ultrasonic inspection instrument |
| JPH05253227A (en) * | 1992-03-09 | 1993-10-05 | Fuji Photo Optical Co Ltd | Ultrasonic probe guide device |
| JP2012510885A (en) * | 2008-12-08 | 2012-05-17 | シリコンバレー メディカル インスツルメンツ インコーポレイテッド | Catheter and system for image guidance and method thereof |
| US9713456B2 (en) | 2013-12-30 | 2017-07-25 | Acist Medical Systems, Inc. | Position sensing in intravascular imaging |
| WO2020149415A1 (en) * | 2019-01-17 | 2020-07-23 | テルモ株式会社 | Drive unit and image generation system |
| CN113015489A (en) * | 2018-10-25 | 2021-06-22 | 皇家飞利浦有限公司 | System and method for estimating a position of a tip of an interventional device in acoustic imaging |
| US11109833B2 (en) | 2016-05-19 | 2021-09-07 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
| US11406352B2 (en) | 2016-05-19 | 2022-08-09 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
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|---|---|---|---|---|
| JPS579439A (en) * | 1980-06-18 | 1982-01-18 | Tokyo Shibaura Electric Co | Ultrasonic scanner |
| JPS5749434A (en) * | 1980-09-10 | 1982-03-23 | Olympus Optical Co | Ultrasonic diagnostic apparatus |
| JPS5770308U (en) * | 1980-10-16 | 1982-04-28 | ||
| JPS57119722A (en) * | 1981-01-16 | 1982-07-26 | Olympus Optical Co | Endoscope with ultrasonic diagnostic apparatus |
| JPS57191301U (en) * | 1981-05-29 | 1982-12-04 |
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1987
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS579439A (en) * | 1980-06-18 | 1982-01-18 | Tokyo Shibaura Electric Co | Ultrasonic scanner |
| JPS5749434A (en) * | 1980-09-10 | 1982-03-23 | Olympus Optical Co | Ultrasonic diagnostic apparatus |
| JPS5770308U (en) * | 1980-10-16 | 1982-04-28 | ||
| JPS57119722A (en) * | 1981-01-16 | 1982-07-26 | Olympus Optical Co | Endoscope with ultrasonic diagnostic apparatus |
| JPS57191301U (en) * | 1981-05-29 | 1982-12-04 |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189139A (en) * | 1989-01-19 | 1990-07-25 | Olympus Optical Co Ltd | Internal visual ultrasonic diagnosing device |
| JPH0347244A (en) * | 1989-04-27 | 1991-02-28 | Olympus Optical Co Ltd | Ultrasonic probe |
| JPH02141421U (en) * | 1989-04-28 | 1990-11-28 | ||
| JPH04815U (en) * | 1990-04-18 | 1992-01-07 | ||
| JPH0515538A (en) * | 1991-07-11 | 1993-01-26 | Fuji Photo Optical Co Ltd | Byplane type ultrasonic inspection instrument |
| JPH05253227A (en) * | 1992-03-09 | 1993-10-05 | Fuji Photo Optical Co Ltd | Ultrasonic probe guide device |
| US11109838B2 (en) | 2008-12-08 | 2021-09-07 | Acist Medical Systems, Inc. | System and catheter for image guidance and methods thereof |
| US9554774B2 (en) | 2008-12-08 | 2017-01-31 | Acist Medical Systems, Inc. | System and catheter for image guidance and methods thereof |
| JP2012510885A (en) * | 2008-12-08 | 2012-05-17 | シリコンバレー メディカル インスツルメンツ インコーポレイテッド | Catheter and system for image guidance and method thereof |
| US9713456B2 (en) | 2013-12-30 | 2017-07-25 | Acist Medical Systems, Inc. | Position sensing in intravascular imaging |
| US10779796B2 (en) | 2013-12-30 | 2020-09-22 | Acist Medical Systems, Inc. | Position sensing in intravascular imaging |
| US11109833B2 (en) | 2016-05-19 | 2021-09-07 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
| US11406352B2 (en) | 2016-05-19 | 2022-08-09 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
| CN113015489A (en) * | 2018-10-25 | 2021-06-22 | 皇家飞利浦有限公司 | System and method for estimating a position of a tip of an interventional device in acoustic imaging |
| CN113015489B (en) * | 2018-10-25 | 2024-07-16 | 皇家飞利浦有限公司 | System and method for estimating a position of a tip of an interventional device in acoustic imaging |
| WO2020149415A1 (en) * | 2019-01-17 | 2020-07-23 | テルモ株式会社 | Drive unit and image generation system |
| JPWO2020149415A1 (en) * | 2019-01-17 | 2021-11-25 | テルモ株式会社 | Drive unit and image generation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2746584B2 (en) | 1998-05-06 |
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