JPS63122447A - Ultrasonic probe - Google Patents
Ultrasonic probeInfo
- Publication number
- JPS63122447A JPS63122447A JP61270467A JP27046786A JPS63122447A JP S63122447 A JPS63122447 A JP S63122447A JP 61270467 A JP61270467 A JP 61270467A JP 27046786 A JP27046786 A JP 27046786A JP S63122447 A JPS63122447 A JP S63122447A
- Authority
- JP
- Japan
- Prior art keywords
- transmission member
- vibration transmission
- ultrasonic probe
- vibration
- root
- 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
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000002184 metal Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 210000003734 kidney Anatomy 0.000 description 3
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は超音波振動を利用して生体内に発生した結石や
生体組織等を除去する超音波プローブに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasonic probe that uses ultrasonic vibration to remove stones, living tissue, etc. generated in a living body.
従来、この種の超音波プローブは振動子を内蔵した握持
部と、超音波振動を伝達する振動伝達部材とからなり、
この振動伝達部材を内視鏡の処置具挿通チャンネルを介
して体腔内に挿入し、その先端を処置部位に押し当てて
結石や生体組織等を除去するように構成されている。Conventionally, this type of ultrasonic probe consists of a grip section with a built-in vibrator and a vibration transmission member that transmits ultrasonic vibrations.
This vibration transmitting member is inserted into a body cavity through a treatment instrument insertion channel of an endoscope, and its tip is pressed against a treatment site to remove stones, living tissue, and the like.
ところが、このような超音波プローブの振動伝達部材と
しては、通常細径の金属パイプが使用されるため、長期
間の使用による疲労や振動摩擦による発熱等によって振
動伝達部材の機械的強度が低下し、使用中に折損するこ
とがある。このように振動伝達部材が使用中に折損する
と、例えば腎臓内の結石を砕石する超音波プローブでは
振動伝達部材の折損片が腎臓内に残留して回収不能とな
る可能性があり、極めて危険であった。However, since a small-diameter metal pipe is usually used as the vibration transmission member of such an ultrasonic probe, the mechanical strength of the vibration transmission member decreases due to fatigue due to long-term use and heat generation due to vibration friction. , it may break during use. If the vibration transmission member breaks during use, for example in an ultrasonic probe for crushing stones in the kidney, the broken pieces of the vibration transmission member may remain in the kidney and become unrecoverable, which is extremely dangerous. there were.
本発明はこのような事情に基づいてなされたもので、そ
の目的とするところは、使用中に振動伝達部材が折損し
ても容易に回収することができる超音波プローブを提供
することにある。The present invention was made based on the above circumstances, and an object of the present invention is to provide an ultrasonic probe that can be easily recovered even if the vibration transmission member breaks during use.
〔問題点を解決するための手段及び作用〕上記問題点を
解決するために本発明は、振動伝達部材の根元付近に機
械的強度の弱い部分を設けたことを特徴とするものであ
る。つまり、本発明では振動伝達部材の根元付近に機械
的強度の弱い部分を設けることにより振動伝達部材が根
元付近で折れ易くなるので、折損した振動伝達部材を容
易に回収することができる。[Means and operations for solving the problems] In order to solve the above problems, the present invention is characterized in that a portion with weak mechanical strength is provided near the root of the vibration transmitting member. That is, in the present invention, by providing a portion with weak mechanical strength near the root of the vibration transmission member, the vibration transmission member is easily broken near the root, so that the broken vibration transmission member can be easily recovered.
以下、図面を参照して本発明の実施例について説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第１図および第２図は本発明の一実施例を示し、第１図
は超音波プローブの断面図である。この超音波プローブ
１は術者により握持される握持部２と、内視鏡の処置具
挿通チャンネルを介して体腔内に挿入される挿入部３と
からなり、握持部２の外装ケース４内にはランジュバン
型振動子５が内蔵されている。このランジュバン型振動
子５は前側金属ブロック６と後側金属ブロック７との間
に圧電素子８および電極板９を交互に配設し、前側金属
ブロック６の後端面に結合されたボルト１０の端部に締
付ナツト１１を装着して構成されている。そして、前側
金属ブロック６の前端には円錐状のホーン１２が一体的
に設けられている。このホーン１２の先端には振動子５
で発生した超音波振動を挿入部３の先端へ伝えるための
振動伝達部材１３がねじ１４を介して着脱可能に連結さ
れている。この振動伝達部材１３は細径の金属パイプか
らなり、その根元付近には第２図に示すように薄肉部１
５が設けられている。1 and 2 show one embodiment of the present invention, and FIG. 1 is a sectional view of an ultrasonic probe. This ultrasonic probe 1 consists of a gripping part 2 that is gripped by the operator, and an insertion part 3 that is inserted into the body cavity through the treatment instrument insertion channel of the endoscope. A Langevin type oscillator 5 is built in 4. This Langevin type vibrator 5 has piezoelectric elements 8 and electrode plates 9 arranged alternately between a front metal block 6 and a rear metal block 7, and the ends of bolts 10 connected to the rear end surface of the front metal block 6. A tightening nut 11 is attached to the portion. A conical horn 12 is integrally provided at the front end of the front metal block 6. At the tip of this horn 12 is a vibrator 5.
A vibration transmission member 13 for transmitting the generated ultrasonic vibrations to the distal end of the insertion section 3 is detachably connected via a screw 14. This vibration transmitting member 13 is made of a small diameter metal pipe, and a thin wall portion 1 is provided near the base of the member 13 as shown in FIG.
5 is provided.
前記外装ケース４の前端にはホーン１２の外周を包囲す
るホーンキャップ１６がねじ結合されている。また、ホ
ーン１２およびボルト１ｏの中心部には振動伝達部材１
３の内孔と連通する貫通孔が形成されており、破砕した
結石等を図示しない送水機構から送水された送水液とと
もに吸引する吸引路１７を形成している。そして、外装
ケース４の後端壁には上記吸引路１７と連通ずる吸引口
金１８がねじ込み固定されている。この吸引口金１８に
は図示しない吸引チューブが接続され、吸引チューブと
接続した吸引装置により吸引路１７内を吸引できるよう
になっている。なお、図中１９は圧電素子６に駆動電圧
を印加する電源コードで、図示しない電源装置に接続さ
れている。A horn cap 16 that surrounds the outer periphery of the horn 12 is screwed to the front end of the exterior case 4. In addition, a vibration transmission member 1 is provided at the center of the horn 12 and the bolt 1o.
A through hole communicating with the inner hole 3 is formed to form a suction path 17 for sucking crushed stones and the like together with a water supply liquid supplied from a water supply mechanism (not shown). A suction cap 18 communicating with the suction path 17 is screwed and fixed to the rear end wall of the exterior case 4. A suction tube (not shown) is connected to this suction cap 18, and the inside of the suction path 17 can be suctioned by a suction device connected to the suction tube. Note that 19 in the figure is a power cord for applying a driving voltage to the piezoelectric element 6, and is connected to a power supply device (not shown).
このように構成された超音波プローブ１においては、長
期間の使用による疲労や振動摩擦による発熱等によって
振動伝達部材１３の機械的強度が低下した場合、他の部
分より機械的強度の弱い薄肉部１５で折損するので、折
損した振動伝達部材１３を容易に回収することができる
。すなわち、例えば腎臓内の結石を破砕する場合には第
３図に示すように振動伝達部材１３を内視鏡２ｏを介し
て体腔内に挿入し、振動伝達部材１３の先端を結石２１
に押し当てて破砕する。このとき、薄肉部１５は内視鏡
２０の鉗子口２２付近に位置するため、振動伝達部材１
３が折損しても容易に回収することができる。なお、薄
肉部１５は振動伝達部材１３の根元付近に設けられてい
ると述べたが、薄肉部１５を根元付近にある超音波振動
の節位置に設ければ、節位置には応力が集中して腹位置
より祈れ易いので、振動伝達部材１３をより効果的に根
元付近で折損させることができる。In the ultrasonic probe 1 configured in this way, when the mechanical strength of the vibration transmission member 13 decreases due to fatigue due to long-term use or heat generation due to vibration friction, etc., the thin-walled portion where the mechanical strength is weaker than other portions is reduced. Since the vibration transmission member 13 is broken at 15, the broken vibration transmission member 13 can be easily recovered. That is, for example, when crushing a stone in the kidney, the vibration transmitting member 13 is inserted into the body cavity through the endoscope 2o as shown in FIG.
crush it by pressing it against it. At this time, since the thin portion 15 is located near the forceps port 22 of the endoscope 20, the vibration transmission member 1
Even if 3 is broken, it can be easily recovered. Although it has been described that the thin wall portion 15 is provided near the root of the vibration transmission member 13, if the thin wall portion 15 is provided at the node position of the ultrasonic vibration near the root, stress will be concentrated at the node position. Since the vibration transmission member 13 can be more easily bent than the antral position, the vibration transmission member 13 can be more effectively broken near the root.
また、本発明は上記実施例に限定されるものではない。Further, the present invention is not limited to the above embodiments.
例えば、第４図に示すように振動伝達部材１３を機械的
強度の強い部材１３Ａと機械的強度の弱い部材１３Ｂと
で構成し、これら部材１３Ａ、１３Ｂの接合部を振動伝
達部材１３の根元付近に設けることにより前記実施例と
同様の効果が得られる。For example, as shown in FIG. 4, the vibration transmission member 13 is composed of a member 13A with strong mechanical strength and a member 13B with low mechanical strength, and the joint of these members 13A and 13B is located near the root of the vibration transmission member 13. The same effect as in the above embodiment can be obtained by providing the same.
以上説明したように本発明によれば、振動伝達部材の根
元付近に機械的強度の弱い部分を設けたことにより振動
伝達部材が根元付近で折れ易くなるので、使用中に振動
伝達部材が折れても容易に回収することができ、安全性
の高い超音波プローブを提供できる。As explained above, according to the present invention, by providing a portion with weak mechanical strength near the root of the vibration transmitting member, the vibration transmitting member is likely to break near the root. can also be easily recovered, providing a highly safe ultrasonic probe.
第１図乃至第３図は本発明の一実施例を示し、第１図は
超音波プローブの断面図、第２図は振動伝達部材の根元
付近を示す断面図、第３図は同プローブを内視鏡を介し
て体腔内に挿入した状態を示す説明図、第４図は本発明
の他の実施例を示す振動伝達部材の根元付近の断面図で
ある。
１・・・超音波プローブ、５・・・振動子、１２・・・
ホーン、１３・・・振動伝達部材、１５・・・薄肉部。1 to 3 show an embodiment of the present invention, in which FIG. 1 is a cross-sectional view of an ultrasonic probe, FIG. 2 is a cross-sectional view showing the vicinity of the root of a vibration transmission member, and FIG. FIG. 4 is an explanatory diagram showing a state in which the vibration transmitting member is inserted into a body cavity through an endoscope, and FIG. 4 is a sectional view of the vicinity of the base of a vibration transmitting member showing another embodiment of the present invention. 1... Ultrasonic probe, 5... Vibrator, 12...
Horn, 13... Vibration transmission member, 15... Thin wall portion.
Claims (1)
強度の弱い部分を設けたことを特徴とする超音波プロー
ブ。An ultrasonic probe characterized in that a portion with weak mechanical strength is provided near the base of a vibration transmission member that transmits ultrasonic vibrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61270467A JPS63122447A (en) | 1986-11-13 | 1986-11-13 | Ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61270467A JPS63122447A (en) | 1986-11-13 | 1986-11-13 | Ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63122447A true JPS63122447A (en) | 1988-05-26 |
Family
ID=17486707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61270467A Pending JPS63122447A (en) | 1986-11-13 | 1986-11-13 | Ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63122447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0251521U (en) * | 1988-10-07 | 1990-04-11 |
-
1986
- 1986-11-13 JP JP61270467A patent/JPS63122447A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0251521U (en) * | 1988-10-07 | 1990-04-11 |
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