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JPH0732779B2 - Calculus crusher - Google Patents
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JPH0732779B2 - Calculus crusher - Google Patents

Calculus crusher

Info

Publication number
JPH0732779B2
JPH0732779B2 JP61187100A JP18710086A JPH0732779B2 JP H0732779 B2 JPH0732779 B2 JP H0732779B2 JP 61187100 A JP61187100 A JP 61187100A JP 18710086 A JP18710086 A JP 18710086A JP H0732779 B2 JPH0732779 B2 JP H0732779B2
Authority
JP
Japan
Prior art keywords
ultrasonic wave
endoscope
wave guide
living body
calculus
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.)
Expired - Lifetime
Application number
JP61187100A
Other languages
Japanese (ja)
Other versions
JPS6343651A (en
Inventor
興治 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP61187100A priority Critical patent/JPH0732779B2/en
Priority to DE19873726210 priority patent/DE3726210A1/en
Publication of JPS6343651A publication Critical patent/JPS6343651A/en
Publication of JPH0732779B2 publication Critical patent/JPH0732779B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/307Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/22Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00029Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Urology & Nephrology (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Surgical Instruments (AREA)

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、超音波により生体腔内に存在する結石を破砕
する結石破砕装置に関する。
DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a calculus crushing device for crushing calculi existing in a living body cavity by ultrasonic waves.

(従来の技術) 生体腔例えば尿道内に形成された結石を超音波のエネル
ギーを利用して破砕することが行われている。このため
結石破砕装置は、内視鏡と超音波エネルギーを結石に伝
達する超音波ウェーブガイドとが組合わせられており、
経皮的に腎瘻を作成しこれを通して所望部位に挿入可能
な内視鏡に設けられている鉗子孔内に挿入可能に超音波
ウェーブガイドが配置されている。
(Prior Art) A calculus formed in a living body cavity such as a urethra is crushed using ultrasonic energy. Therefore, the calculus breaking device is combined with an endoscope and an ultrasonic wave guide that transmits ultrasonic energy to the calculus,
An ultrasonic wave guide is arranged so that it can be inserted percutaneously into a forceps hole provided in an endoscope that can be inserted into a desired site through a renal fistula.

ところでこのような結石破砕装置の従来構造において、
前記超音波ウェーブガイドは可撓性(フレキシビリテ
ィ)のないリジッド部材から構成されており、また内視
鏡としてもこれに対応して硬性鏡から構成されたものが
ほとんどである。このために適用するためには経皮的に
腎瘻を作成する必要があった。もし非直線部分の生体腔
内に適用する場合には、生体外部から適用部位に対して
直線部分を確保するために腎瘻等の経皮的な孔を作成す
る必要があり、患者に対して大きな負担を与えることに
なる。
By the way, in the conventional structure of such a calculus breaking device,
The ultrasonic wave guide is composed of a rigid member having no flexibility, and most endoscopes are also composed of a rigid endoscope corresponding thereto. For this purpose, it was necessary to percutaneously create a renal fistula. If it is applied to a non-straight portion in the living body cavity, it is necessary to create a percutaneous hole such as a renal fistula to secure the straight portion from the outside of the living body to the application site. It will give a big burden.

(発明が解決しようとする問題点) このように従来の結石破粉装置においては、超音波ウェ
ーブガイド及び内視鏡が可撓性を有していないので、実
質的に適用範囲が限定されてしまうという問題がある。
(Problems to be Solved by the Invention) As described above, in the conventional calculus breaking device, since the ultrasonic wave guide and the endoscope do not have flexibility, the application range is substantially limited. There is a problem that it ends up.

本発明はこのような問題に対処してなされたもので、生
体腔内の非直線部分にも容易に適用できるようにした結
石破粉装置を提供することを目的とするものである。
The present invention has been made to address such a problem, and an object thereof is to provide a calculus breaking apparatus which can be easily applied to a non-linear portion in a living body cavity.

[発明の構成] (問題点を解決するための手段) 上記目的を達成するために本発明は、生体腔内の所要部
位に挿入可能な内視鏡及びこの内視鏡の鉗子孔内に挿入
可能に配置される超音波ウェーブガイドを共に可撓性を
有するように構成したことを特徴としている。
[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides an endoscope that can be inserted into a required site in a living body cavity and a forceps hole of the endoscope. It is characterized in that both ultrasonic wave guides that can be arranged are configured to have flexibility.

(作用) 内視鏡及び超音波ウェーブガイドが可撓性を有している
ので、生体腔内の非直線部分にも容易に適用することが
できる。例えば尿道を利用してこの曲線部分に沿って案
内することが可能となるので、穿刺が不要となり患者に
与える負担を軽減することができる。また経口的に内視
鏡を誘導することにより胆管等の消化器系の結石にも適
用可能となる。
(Operation) Since the endoscope and the ultrasonic wave guide have flexibility, they can be easily applied to a non-linear portion in a living body cavity. For example, since it is possible to guide along this curved portion by utilizing the urethra, puncture is unnecessary and the burden on the patient can be reduced. In addition, by orally guiding the endoscope, it can be applied to digestive system stones such as the bile duct.

(実施例) 第1図は本発明実施例の結石破粉装置を示す説明図で、
1は内視鏡で軟性鏡から成り先端部を生体腔内に挿入
し、光源2からの光でオプティカルファイバ端部3を介
して生体腔内を照射することにより、看視部4によって
生体腔内を観察できるようになっている。またこの内視
鏡1の鉗子孔5内には超音波ウェーブガイド6が挿入さ
れ、この超音波ウェーブガイド6は超音波発生部7によ
り前後方向に振動を受けてその先端部が結石と接触して
破粉させるようになっている。
(Example) FIG. 1 is an explanatory view showing a calculus breaking apparatus of an example of the present invention,
Reference numeral 1 denotes an endoscope, which is made of a flexible endoscope and has a distal end portion inserted into a living body cavity, and light from a light source 2 irradiates the living body cavity through an optical fiber end portion 3. You can observe the inside. An ultrasonic wave guide 6 is inserted into the forceps hole 5 of the endoscope 1, and the ultrasonic wave guide 6 is vibrated in the front-rear direction by the ultrasonic wave generator 7 so that its tip end comes into contact with the calculus. It is designed to be crushed.

超音波発生部7は振動源として強力超音波を発生する例
えばボルト締ランジュバン型振動子8が用いられホーン
9によって超音波をインピーダンス変換した後、そのエ
ネルギーを超音波ウェーブガイド6を介してこの先端部
に伝達し得るように構成されている。
The ultrasonic wave generator 7 uses, for example, a bolted Langevin type vibrator 8 that generates a strong ultrasonic wave as a vibration source, impedance-converts the ultrasonic wave by a horn 9, and then transfers the energy through the ultrasonic wave guide 6 to the tip. It is configured to be transmitted to the section.

超音波ウェーブガイド6の先端部は第2図の拡大して示
すような構造になっており、超音波ウェーブガイド6は
複数の中空部材6A,6B,6C,…が一体的に束になって構成
されており各部材6A,6B,6C,…は内孔6a,6b,6c,…を有し
ており、これら内孔6a,6b,6c,…は水源10に接続されて
冷却導入孔として動作する。中空部材6A,6B,6C,…は、
例えば0.3乃至0.5mmφのステンレス製パイプから構成さ
れ、この内部に0.1乃至0.3mmφの冷却液導入孔6a,6b,6c
が形成され、溶接によって一体化される。このように超
音波ウェーブガイド6の内部に冷却液を供給するのは、
振動時に発生した熱を冷却してウェーブガイド6の折損
を防止するためである。
The tip of the ultrasonic wave guide 6 has a structure as shown in an enlarged scale in FIG. 2, and the ultrasonic wave guide 6 is formed by a plurality of hollow members 6A, 6B, 6C, ... Each of the members 6A, 6B, 6C, ... Has inner holes 6a, 6b, 6c, .. These inner holes 6a, 6b, 6c, .. are connected to the water source 10 as cooling introduction holes. Operate. The hollow members 6A, 6B, 6C, ...
For example, it is composed of a stainless steel pipe of 0.3 to 0.5 mmφ, and 0.1 to 0.3 mmφ cooling liquid introducing holes 6a, 6b, 6c
Are formed and integrated by welding. As described above, the cooling liquid is supplied to the inside of the ultrasonic waveguide 6.
This is for cooling the heat generated at the time of vibration to prevent breakage of the waveguide 6.

11は超音波発生部7に対する発振器である。このように
超音波ウェーブガイド6を構成するようにして可撓性を
持たせることにより、内視鏡1と共に生体腔内の曲線部
分にも挿入することができる。
Reference numeral 11 is an oscillator for the ultrasonic wave generator 7. By thus providing the ultrasonic wave guide 6 with flexibility, the ultrasonic wave guide 6 can be inserted into the curved portion in the living body cavity together with the endoscope 1.

次に本実施例の作用を説明する。Next, the operation of this embodiment will be described.

第3図のように内視鏡1の先端部を生体腔例えば尿道12
内に挿入し、オプティカルファイバ端部3を介して尿道
12内を観察しながら超音波ウェーブガイド6を進める。
内視鏡1の案内で超音波ウェーブガイド6が結石13が存
在する位置まで進んだとき、挿入を停止する。尿道12の
ように曲線部分になっている生体腔であっても、内視鏡
1及び超音波ウェーブガイド6が可撓性を有しているた
めに、その曲線部分に沿って挿入はスムーズに行なわれ
る。
As shown in FIG. 3, the distal end portion of the endoscope 1 is attached to a living body cavity such as the urethra 12
Inserted into the urethra through the optical fiber end 3
While observing the inside of 12, the ultrasonic wave guide 6 is advanced.
When the ultrasonic wave guide 6 advances to the position where the calculus 13 exists under the guidance of the endoscope 1, the insertion is stopped. Even if the body cavity has a curved portion like the urethra 12, since the endoscope 1 and the ultrasonic wave guide 6 have flexibility, the insertion is smoothly performed along the curved portion. Done.

次に発振器11によって超音波発生部7を駆動させ、これ
に接続されている超音波ウェーブガイド6に超音波エネ
ルギーを伝達すると、超音波ウェーブガイド6は前後方
向に振動する。これによって超音波ウェーブガイド6の
先端部が結石13に接触すると結石13は超音波エネルギー
によって破砕されることになる。
Next, when the ultrasonic wave generator 7 is driven by the oscillator 11 and ultrasonic wave energy is transmitted to the ultrasonic wave guide 6 connected thereto, the ultrasonic wave guide 6 vibrates in the front-back direction. As a result, when the tip of the ultrasonic wave guide 6 contacts the calculus 13, the calculus 13 is crushed by the ultrasonic energy.

破砕された結石の小片は内視鏡1に設けた吸引部(図示
せず)によって吸引することにより、体外に取り出すこ
とができる。
The small pieces of crushed calculi can be taken out of the body by sucking with a suction unit (not shown) provided in the endoscope 1.

このような本発明実施例によれば、内視鏡1及び超音波
ウェーブガイド6に可撓性を持たせているため、尿道の
ような曲線部分の生体腔内にも容易に挿入することがで
きるので、穿刺のような苦痛な手段を施すことがなく適
用することができる。従って患者に与える負担を軽減す
ることができる。また超音波ウェーブガイドの内部に冷
却液導入孔を設けてあるので、超音波振動時は常にこの
孔から供給された水によって超音波ウェーブガイドの先
端部を冷却することにより、振動時発生した熱による高
温の温度上昇は防止されるので熱による折損は避けられ
る。冷却液としては水以外にも生体に有害なものでなけ
れば、任意のものを選ぶことができる。
According to such an embodiment of the present invention, since the endoscope 1 and the ultrasonic wave guide 6 have flexibility, the endoscope 1 and the ultrasonic wave guide 6 can be easily inserted into a living body cavity of a curved portion such as the urethra. Therefore, it can be applied without applying painful means such as puncture. Therefore, the burden on the patient can be reduced. In addition, since the cooling liquid introduction hole is provided inside the ultrasonic wave guide, during the ultrasonic vibration, the heat generated during the vibration is always generated by cooling the tip of the ultrasonic wave guide with the water supplied from this hole. Since the temperature rise due to high temperature is prevented, breakage due to heat can be avoided. As the cooling liquid, other than water, any liquid can be selected as long as it is not harmful to the living body.

なお実施例において曲線部分を有する生体腔としては尿
道に一例をあげて説明したが、これに限ることなく他の
同様な生体腔に適用することができる。
Although the urethra has been described as an example of the living body cavity having the curved portion in the embodiments, the present invention is not limited to this and can be applied to other similar living body cavities.

[発明の効果] 以上述べたように本発明によれば、内視鏡及びこれによ
って案内される超音波ウェーブガイドに共に可撓性を持
たせるようにしたので、曲線部分を有する生体腔内にも
適用できるので適用範囲を広げることができる。
[Effects of the Invention] As described above, according to the present invention, both the endoscope and the ultrasonic waveguide guided by the endoscope are made to have flexibility, so that the endoscope can be installed in a living body cavity having a curved portion. Can also be applied, so the range of application can be expanded.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明実施例の結石破粉装置を示す説明図、第
2図は第1図の一部を示す拡大図、第3図は本発明実施
例の作用を示す説明図である。 1……内視鏡、5……鉗子孔、 6……超音波ウェーブガイド、 6A,6B,6C,……中空部材、 6a,6b,6c……冷却液供給孔(内孔)、 7……超音波発生部、10……水源、 11……発振器、12……尿道、13……結石。
FIG. 1 is an explanatory view showing a calculus breaking apparatus of an embodiment of the present invention, FIG. 2 is an enlarged view showing a part of FIG. 1, and FIG. 3 is an explanatory view showing an operation of the embodiment of the present invention. 1 ... Endoscope, 5 ... Forceps hole, 6 ... Ultrasonic wave guide, 6A, 6B, 6C, ... Hollow member, 6a, 6b, 6c ... Coolant supply hole (inner hole), 7 ... … Ultrasonic generator, 10 …… water source, 11 …… oscillator, 12 …… urethra, 13 …… calculus.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】その先端部を生体腔内に挿入することによ
り生体腔内を体外で観察可能な軟性の内視鏡と、この内
視鏡の鉗子孔を介して生体腔内に挿入可能であり先端部
が結石に接触し得る可撓性の超音波ウェーブガイドとを
具備したことを特徴とする結石破砕装置。
1. A flexible endoscope capable of observing the inside of a living body outside the body by inserting its tip into the living body cavity, and the endoscope can be inserted into the living body cavity through a forceps hole of the endoscope. A calculus breaking device comprising a flexible ultrasonic wave guide whose tip portion is in contact with a calculus.
【請求項2】前記超音波ウェーブガイドがその内部に冷
却液導入口を有する特許請求の範囲第1項記載の結石破
砕装置。
2. The calculus breaking device according to claim 1, wherein the ultrasonic wave guide has a cooling liquid inlet therein.
【請求項3】前記超音波ウェーブガイドが複数の中空部
材から成る特許請求の範囲第2項記載の結石破砕装置。
3. The calculus breaking device according to claim 2, wherein the ultrasonic wave guide comprises a plurality of hollow members.
JP61187100A 1986-08-08 1986-08-08 Calculus crusher Expired - Lifetime JPH0732779B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP61187100A JPH0732779B2 (en) 1986-08-08 1986-08-08 Calculus crusher
DE19873726210 DE3726210A1 (en) 1986-08-08 1987-08-06 Calculus crushing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61187100A JPH0732779B2 (en) 1986-08-08 1986-08-08 Calculus crusher

Publications (2)

Publication Number Publication Date
JPS6343651A JPS6343651A (en) 1988-02-24
JPH0732779B2 true JPH0732779B2 (en) 1995-04-12

Family

ID=16200103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61187100A Expired - Lifetime JPH0732779B2 (en) 1986-08-08 1986-08-08 Calculus crusher

Country Status (2)

Country Link
JP (1) JPH0732779B2 (en)
DE (1) DE3726210A1 (en)

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JPS62292150A (en) * 1986-06-13 1987-12-18 オリンパス光学工業株式会社 Ultrasonic transmitting medium for treatment in cavity

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Publication number Publication date
JPS6343651A (en) 1988-02-24
DE3726210A1 (en) 1988-02-18
DE3726210C2 (en) 1989-06-08

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