JPH066842Y2 - 温熱治療装置 - Google Patents

温熱治療装置

Info

Publication number
JPH066842Y2
JPH066842Y2 JP1988045648U JP4564888U JPH066842Y2 JP H066842 Y2 JPH066842 Y2 JP H066842Y2 JP 1988045648 U JP1988045648 U JP 1988045648U JP 4564888 U JP4564888 U JP 4564888U JP H066842 Y2 JPH066842 Y2 JP H066842Y2
Authority
JP
Japan
Prior art keywords
balloon
liquid
electrode
living body
space
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
JP1988045648U
Other languages
English (en)
Other versions
JPH01150958U (ja
Inventor
康一郎 石原
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.)
Olympus Corp
Original Assignee
Olympus Optic 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
Priority to JP1987141974U priority Critical patent/JPS6446056U/ja
Priority to JP62245514A priority patent/JPS6485671A/ja
Application filed by Olympus Optic Co Ltd filed Critical Olympus Optic Co Ltd
Priority to JP1988045648U priority patent/JPH066842Y2/ja
Publication of JPH01150958U publication Critical patent/JPH01150958U/ja
Priority to US07/657,331 priority patent/US5106360A/en
Application granted granted Critical
Publication of JPH066842Y2 publication Critical patent/JPH066842Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • A61N1/403—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals for thermotherapy, e.g. hyperthermia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22065—Functions of balloons
    • A61B2017/22068—Centering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00553—Sphincter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/12—Devices for heating or cooling internal body cavities
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1047—Balloon catheters with special features or adapted for special applications having centering means, e.g. balloons having an appropriate shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A61N2005/1003—Intraluminal radiation therapy having means for centering a radioactive source within the lumen, e.g. balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N2005/1019—Sources therefor
    • A61N2005/1021—Radioactive fluid

Description

【考案の詳細な説明】 ［産業上の利用分野］ この考案は生体内の患部、とくに腫瘍などの熱によって
壊死する患部を加熱して治療する温熱治療装置に関す
る。
［従来の技術］ 生体内にできる癌のような悪性腫瘍の細胞は約４３℃付
近の温度で１時間程度加熱するとともに、その加熱を一
定周期で繰返すことによって死滅することが知られてお
り、そのような治療を行なうために種々の温熱治療装置
が開発されている。
上記温熱治療装置として患部を高周波により誘電加熱す
る手段が知られている。その内、体内深部を加温するた
めには、体内とくに管腔臓器内に挿入した体内アプリケ
ータとこれに対向する体外アプリケータとの間に高周波
エネルギを印加することにより、生体に生じた患部を加
熱治療するようにしている。
従来、そのような温熱治療装置の体内アプリケータは、
特公昭６０−３０２２６号公報や特公昭６２−４８５０
５号公報に示される構造となっている。すなわち、従来
の体内バルーンは管部材の先端に電極を備え、その電極
をバルーンで覆うとともに、そのバルー内に冷却水を循
環させる第１の構造のものあるいはバルーンを導電性部
材によって形成し、このバルーン自体を電極とする第２
の構造のものなどがある。
［考案が解決しようとする課題］ しかしながら、上述した第１の構造のものによると、バ
ルーンと電極との間に冷却水を循環させているため、高
周波エネルギがその冷却水を必要以上に加熱することに
なるため、エネルギが無駄に消費され、患部の加温が不
十分になるばかりか、冷却水による電極の冷却効果が低
下するなどのことが生じる。
また、上述した第２の構造のものによると、生体に導電
性部材からなるバルーンが直接接触するため、その接触
面での温度上昇が大きくなる恐れがあるばかりか、バル
ーンと生体とが均一に接触せずにこれらの接触面積が小
さくなることがあり、そのような場合には、生体に局部
的な熱傷を招く恐れもある。
この考案は上記事情にもとずきなされたもので、その目
的とするところは、生体を効率よく確実に加熱すること
ができるとともに、局部的に加熱し過ぎるようなことが
ないようにした温熱治療装置を提供することにある。
［課題を解決するための手段及び作用］ 上記課題を解決するためにこの考案は、生体に接して設
けられる可撓性の第１のバルーンと、この第１のバルー
ンの内部に設けられた第２のバルーンと、上記第１のバ
ルーンと第２のバルーンとの間に形成された空間部内に
設けられ生体を上記第１のバルーンを介して加熱する電
極手段と、上記空間部内および上記第２のバルーン内に
液体を給排する手段とを具備する。それによって高周波
エネルギで発生する熱が第２のバルーン内に給排される
液体を必要以上に加熱することがなく、しかも生体を局
部的に加熱し過ぎるようなことがないようにした。
［実施例］ 以下、この考案の第１の実施例を第１図乃至第３図を参
照して説明する。第３図に示す温熱治療装置は体内アプ
リケータ１と体外アプリケータ２とを備えている。上記
体内アプリケータ１は第１図に示すように構成されてい
る。すなわち、図中３は多孔チューブで、この多孔チュ
ーブ３には第２図に示すように電極用流体注入孔４とそ
の排液孔５および冷却用液体流入孔６とその排液孔７と
が軸方向に沿って穿設されている。
上記冷却用液体流入孔６は多孔チューブ３の先端部に形
成された第１の送液口８に連通し、上記排液孔７は上記
第１の送液口８よりも後端側に形成された第１の排液口
９に連通している。これら第１の送液口８と排液口９と
は多孔チューブ３の先端部外周面に両端を液密に固定し
て設けられた可撓性の内部バルーン１１（第２のバルー
ン）の内部空間に連通している。この内部バルーン１１
の外周面にはリブ１２が螺旋状に形成され、それによっ
て第１のバルーン１１が所定以上に膨張するのを防止し
ている。
上記内部バルーン１１は外部バルーン１３（第１のバル
ーン）によって覆われている。この外部バルーン１３は
上記内部バルーン１１と同様に可撓性を有するととも
に、両端部が上記内部バルーン１１の両端部に液密に固
着されている。それによって上記内部バルーン１１と外
部バルーン１３との間には空間部１４が形成されてい
る。
上記電極用流体注入孔４は上記多孔チューブ３の先端部
に穿設された第２の送液口１５に連通し、上記排液孔５
は上記第２の送液口と１５よりも後端側に形成された第
２の排液口１６に連通している。これら第２の送液口１
５と排液口１６とは内部バルーン１１の多孔チューブ３
に固着された両端部を介して上記空間部１４に連通して
いる。この空間部１４には電極用流体注入孔４を介して
第２の送液口１５から電極手段を構成する生理食塩水な
どの電気的良導体からなる液体が注入されるようになっ
ている。また、上記電極用流体注入孔４には上記空間部
１４に注入された液体と電気的に導通する電線１７（第
２図に示す）が挿通されている。
上記電線１７は第３図に示すようにケーブル１８を介し
て整合回路１９に接続されている。また、上記冷却用流
体流入孔６と排液孔７とはそれぞれチューブ２１を介し
て液体恒温循環装置２２に接続されている。この液体恒
温循環装置２２からは上記冷却用流体流入孔６への所定
温度に維持された冷却液が供給される。その冷却液は第
１の送液口８から内部バルーン１１内に流入し、第１の
排液口９から排液孔７に流れて上記液体恒温循環装置２
２に戻るという経路で循環するようになっている。
一方、上記体外アプリケータ２は第３図に示すように体
外バルーン２５と体外電極２６とから構成されている。
上記体外バルーン２５には一端を上記液体恒温循環装置
２２に接続した冷却液の供給チューブ２７と排出チュー
ブ２８との他端が接続され、上記体外電極２６には一端
を上記整合回路１９に接続したケーブル２９の他端が接
続されている。この整合回路１９は高周波電源３１に接
続されている。そして、この高周波電源３１により上記
体外電極２６と体内アプリケータ１の空間部１４に注入
された液体とに高周波エネルギを印加することができる
ようになっている。
このように構成された温熱治療装置は第３図に示すよう
に使用される。つまり、体内アプリケータ１を患者の体
腔３２内に挿入し、体外アプリケータ２を生体に生じた
患部３３を挟んで体内アプリケータ１に対向するよう生
体の表面に接合する。この状態で液体恒温循環装置２２
を作動させる。それによって所定温度に維持された冷却
液が内部バルーン１１内を循環することになる。このと
き、内部バルーン１１はリブ１２によって膨張し過ぎる
ことがない。
内部バルーン１１に冷却液を循環させると同時に、内部
バルーン１１と外部バルーン１３との間の空間部１４に
たとえば図示しないシリンジなどの供給装置によって電
気的良導体よりなる液体を充満させる。それによって外
部バルーン１３が体腔３２の生体表面に密着することに
なる。この状態で高周波電源３１を作動させると、体内
アプリケータ１と体外アプリケータ２との間に高周波電
圧が印加されるから、これらの間にある患部３３が加熱
されることになる。
このようにして患部３３を加熱するに際し、空間部１４
内の電極用の液体は内部バルーン１１内を循環する冷却
液によって所定温度に保たれるから、上記患部３３を確
実に温熱治療することができる。また、上記冷却液は上
記空間部１４よりも内側の内部バルーン１１内を循環す
るので、高周波電圧が直接印加されることがない。その
ため、高周波エネルギの無駄をなくすことができるばか
りか、冷却液が温度上昇し過ぎることもない。
第４図はこの考案の第２の実施例である。この実施例は
内部バルーン１１としてその外周面にリブ１２が設けら
れていないものを用いるとともに、上記内部バルーン１
１の外周面に収縮自在な金属製の網状部材４１を装着
し、この網状部材４１に電極用流体注入孔４に挿通され
た電線１７を接続する。そして、この網状部材４１およ
び内部バルーン１１と外部バルーン１３との間の空間部
１４に注入される流体を電極手段として用いるようにし
た。
このような構成によれば、金属製の網状部材４１が電極
として機能するから、生体の加温効果が向上するばかり
か、この網状部材４１によって内部バルーン１１が所定
以上に膨張するのを防止することができる。
第５図と第６図はこの考案の第３の実施例を示し、この
実施例は第２の実施例と同様内部バルーン１１にリブ１
２を設けず、外部バルーン１３の内周面に軸方向に沿う
リブ１２ａを周方向に所定間隔で複数設けるようにし
た。また、各リブ１２ａの間の空間、つまり空間部１４
はリブ１２ａの両端において連通するよう上記リブ１２
ａの長さが設定されている。また、各リブ１２ａ間には
それぞれ針状電極５１が挿通され、これら電極には電線
１７が接続されている。
このような構成によれば、上記各実施例と同様患部３３
を加熱することができるばかりか、各バルーン１１，１
３の拡大、収縮が容易に行なえる。
なお、上記各実施例において、空間部１４に注入される
電極用の液体は体内アプリケータ１を体腔３２内に挿入
する前にあらかじめ充填しておいてもよく、また必要に
応じて循環させるようにしてもよい。
［考案の効果］ 以上述べたようにこの考案は、第１のバルーン内に第２
のバルーンを設け、これらバルーンの間に形成された空
間部内に生体を上記第１のバルーンを介して加熱する電
極手段を設けるとともに、上記空間部および上記第２の
バルーン内に流体を給排するようにした。したがって、
電極手段は第１のバルーンを介して生体に接触するた
め、良好な密着性が得られまた液体は電極手段よりも内
側の第２のバルーン内を循環するから、その液体に高周
波エネルギが吸収され、加温効果が低下したり、上記液
体による冷却効果が低下するなどのことがない。
【図面の簡単な説明】
第１図はこの考案の第１の実施例を示す体内アプリケー
タの断面図、第２図は同じく多孔チューブの拡大断面
図、第３図は同じく装置全体の概略図、第４図はこの考
案の第２の実施例を示す体内アプリケータの断面図、第
５図はこの考案の第３の実施例を示す体内アプリケータ
の断面図、第６図は同じく断面図である。 ６……冷却用流体流入孔、７……排液孔、１１……内部
バルーン（第２のバルーン）、１３……外部バルーン
（第１のバルーン）、２２……液体恒温循環装置、４
１、５１……電極手段。

Claims (1)

    【実用新案登録請求の範囲】
  1. 【請求項１】生体に接して設けられる可撓性の第１のバ
    ルーンと、この第１のバルーンの内部に設けられた第２
    のバルーンと、上記第１のバルーンと第２のバルーンと
    の間に形成された空間部内に設けられ生体を上記第１の
    バルーンを介して加熱する電極手段と、上記空間部内お
    よび上記第２のバルーン内に液体を給排する手段とを具
    備したことを特徴とする温熱治療装置。
JP1988045648U 1987-09-17 1988-04-06 温熱治療装置 Expired - Lifetime JPH066842Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1987141974U JPS6446056U (ja) 1987-09-17 1987-09-17
JP62245514A JPS6485671A (en) 1987-09-17 1987-09-29 Thermotherapy apparatus
JP1988045648U JPH066842Y2 (ja) 1987-09-17 1988-04-06 温熱治療装置
US07/657,331 US5106360A (en) 1987-09-17 1991-02-11 Thermotherapeutic apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1987141974U JPS6446056U (ja) 1987-09-17 1987-09-17
JP62245514A JPS6485671A (en) 1987-09-17 1987-09-29 Thermotherapy apparatus
JP1988045648U JPH066842Y2 (ja) 1987-09-17 1988-04-06 温熱治療装置

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US5106360A (en) 1992-04-21
JPS6485671A (en) 1989-03-30
JPH01150958U (ja) 1989-10-18
JPS6446056U (ja) 1989-03-22

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