JPH02297354A - Instrument for ultrasonic irradiation in cavity - Google Patents

Instrument for ultrasonic irradiation in cavity

Info

Publication number
JPH02297354A
JPH02297354A JP2039891A JP3989190A JPH02297354A JP H02297354 A JPH02297354 A JP H02297354A JP 2039891 A JP2039891 A JP 2039891A JP 3989190 A JP3989190 A JP 3989190A JP H02297354 A JPH02297354 A JP H02297354A
Authority
JP
Japan
Prior art keywords
ultrasound
irradiator
pair
piezoceramic
piezoceramic plates
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
Application number
JP2039891A
Other languages
Japanese (ja)
Inventor
Nikolaj I Nesterov
ニコライ イバノビチ ネステロフ
Aleksandr V Razuvaev
アレクサンドル フラディミロビチ ラズバエフ
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.)
VSES N TS MEDICINSK REABILITATSII I FIZ TERAP
Original Assignee
VSES N TS MEDICINSK REABILITATSII I FIZ TERAP
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 VSES N TS MEDICINSK REABILITATSII I FIZ TERAP filed Critical VSES N TS MEDICINSK REABILITATSII I FIZ TERAP
Publication of JPH02297354A publication Critical patent/JPH02297354A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B17/22004Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • A61B17/2202Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00Ultrasound therapy
    • A61N7/02Localised ultrasound hyperthermia
    • A61N7/022Localised ultrasound hyperthermia intracavitary
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B17/22004Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • A61B17/2202Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter
    • A61B2017/22021Implements 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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter electric leads passing through the catheter

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgical Instruments (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

PURPOSE: To prevent any ambient tissue from being damaged mechanically by including at least a pair of piezoceramic plates in a means for affecting the biological tissues via ultrasonic waves. CONSTITUTION: A means 5 for affecting biological tissues via ultrasonic waves includes at least a pair of piezoceramic plates 6. A high-frequency(HF) generated via a transmitter 17 is then fed into the piezoceramic plates 6 that convert the electric oscillation into the ultrasonic wave oscillation via a control unit 16, conductive bar 9 and contact washer 15. The control unit 16 turns ON/OFF each pair of the piezoceramic plates at a given order, through which the biological tissues so irradiated, for instance, the entire prostate suffered can be affected via the ultrasonic waves. This can prevent any ambient tissue from being damaged mechanically via the irradiator.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は医学に関し、そして特に洞内超音波照射器に関
する。
DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to medicine, and in particular to an intrasinus ultrasound irradiator.

本発明は前立腺炎、膀胱炎及び前立腺の腺腫の治療泌尿
器科学において、膣炎、子宮頚のびらん及び子宮内膜増
殖症の治療のための婦人科学において、扁桃炎の治療の
ための耳鼻科学において、並びにギシビシス(gith
ivitis)及び口内炎の治療のための口腔科学にお
いて使用することができる。
The invention is useful in urology for the treatment of prostatitis, cystitis and adenomas of the prostate, in gynecology for the treatment of vaginitis, cervical erosion and endometrial hyperplasia, in otolaryngology for the treatment of tonsillitis. , as well as gith
ivitis) and in stomatology for the treatment of stomatitis.

〔従来の技術〕[Conventional technology]

超音波により生物組織に影響を与えるための手段を備え
た先端部を有するケースを含む超音波照射器が知られて
いる(Medexport、 ソ連邦、  rLOR−
1八」装置、モスクワ、 1976)。
Ultrasonic irradiators are known that include a case with a tip equipped with means for influencing biological tissue with ultrasound waves (Medexport, USSR, rLOR-
18” Apparatus, Moscow, 1976).

前記の照射器においては超音波により生物組織に影響を
与える手段は1個のピエゾセラミック要素により構成さ
れている。該要素の直径は1 cmでありそしてその照
射表面は平らである。ただ1個のピエゾセラミック要素
の存在は侵入される組織の全体に同時に影響を与えるこ
とを可能にせず、不安定な技術を用いなければならない
という欠点を有する。この様な技術は外科医が付きっき
りで居ることを要求し、そして一般に周囲組織を傷つけ
、そしてそれにより主症状及び随伴症状が再発する場合
がある。
In the irradiator described above, the means for influencing biological tissues with ultrasound waves are constituted by a piezoceramic element. The diameter of the element is 1 cm and its illuminated surface is flat. The presence of only one piezoceramic element has the disadvantage that it does not make it possible to simultaneously affect the entire tissue to be penetrated and that unstable techniques have to be used. Such techniques require the presence of the surgeon and are generally damaging to the surrounding tissue, which may lead to recurrence of the primary and associated symptoms.

さらに、超音波により生物組織に影響を与えるための手
段を有する先端部を備えたケースを含む超音波照射器が
知られている (US、A 580865)。
Furthermore, an ultrasound irradiator is known (US, A 580,865) which includes a case with a tip having means for influencing biological tissue with ultrasound waves.

この様な超音波照射器においては超音波により生物組織
に影響を与える手段は1個のピエゾセラミック要素によ
り構成されている。
In such an ultrasonic irradiator, the means for influencing biological tissue with ultrasonic waves is constituted by a single piezoceramic element.

ただ1個のピエゾセラミック要素の存在は侵入される生
物組織の全体に同時に超音波により影響を与えることを
可能にせず、これは前記要素の照射表面積が小さ過ぎる
ためである。これは、超音波により侵入された組織の一
部分にのみ影響を与える点において不安定な技術の使用
を必要とする。
The presence of only one piezoceramic element does not allow the entire biological tissue to be penetrated to be simultaneously influenced by ultrasound, since the irradiated surface area of said element is too small. This requires the use of techniques that are unstable in that they only affect the part of the tissue penetrated by the ultrasound.

最小強度においてさえ生物柔組織に対する超音波の安定
な効果はその無菌的炎症の出現をもたらし、他方不安定
な技術の使用は周囲組織を機械的に傷つけ、そして処置
の間常に外科医が居合わせることを必要とするであろう
The stable effect of ultrasound on biological parenchyma even at minimal intensities leads to the appearance of its aseptic inflammation, while the use of unstable techniques mechanically damages the surrounding tissues and requires the constant presence of the surgeon during the procedure. will need it.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

本発明は洞内超音波照射器を提供するものであり、この
照射器においては、超音波により生物組織に影響を与え
るための手段の新規な態様が、超音波により影響される
侵入された生物組織の表面を実質的に増加し、照射器の
安定な位置において超音波処理の不安定な技術を用い、
そして照射器の安定な位置における生物組織に対する超
音波の不都合な効果、照射器による周囲組織の機械的損
傷及び超音波処理中の外科医の関与を回避する。
The present invention provides an intracavity ultrasound irradiator, in which a novel aspect of the means for influencing biological tissue with ultrasound is applied to an intruded organism that is affected by ultrasound. Using the unstable technique of sonication in a stable position of the irradiator, increasing the tissue surface substantially
and avoids the unfavorable effects of ultrasound on the biological tissue in the stable position of the irradiator, mechanical damage of the surrounding tissue by the irradiator and involvement of the surgeon during the ultrasound treatment.

〔課題を解決するための手段〕[Means to solve the problem]

上記の課題は、超音波により生物組織に影響を与えるた
めの手段を備えた先端部を有するケースを含む洞内超音
波照射器において、超音波によって生物組織に影響を与
えるための前記手段が少なくとも1対のピエゾセラミッ
クプレートを含むことを特徴とする洞内超音波照射器に
より達成される。
The above-mentioned problem is solved in an intracavitary ultrasound irradiator including a case having a distal end portion provided with a means for influencing biological tissue with ultrasound, in which the means for influencing biological tissue with ultrasound is at least This is achieved by an intracavity ultrasound irradiator characterized by including a pair of piezoceramic plates.

各対において前記ピエゾセラミックプレートが前記ケー
スの先端部の長袖に関して対称的であるのが好ましい。
Preferably, the piezoceramic plates in each pair are symmetrical with respect to the long sleeve of the leading end of the case.

ここに提案される超音波照射器のこの様な設計は、それ
が対称的な20−ブ構造のため超音波により病気の中心
部特に前立腺に均一に影響を与えることを可能にする。
Such a design of the ultrasound emitter proposed here allows it to uniformly affect the disease center, especially the prostate gland, with ultrasound waves due to its symmetrical 20-beam structure.

さらに、本発明の照射器は侵入された生物組織に対する
超音波の合目的的作用を有する。
Furthermore, the irradiator of the invention has a purposeful effect of ultrasound on the invaded biological tissue.

ここに本発明を添付図面を用いながら特定の実施例に言
及しながら記載する。
The invention will now be described with reference to specific embodiments and with reference to the accompanying drawings.

〔実施例〕〔Example〕

本発明の対象である洞内超音波照射器はケース(1)(
第1図)を有し、このケースlはその一端において先端
部(2)に連結されそして他端においてホルダー3に連
結されており、このホルダーはその端において、本発明
の照射器を制御ユニットに接続するだめのプラグ(4)
を有する。この制御ユニットは本発明の部分を構成しな
いため図面には示されていない。任意の適当な従来技術
の制御ユニット(例えば、Tittseら、「Polu
provodnikovayaskhemotekhn
ika」+ 1983+  Mir出版、モスクワ。
The intrasinus ultrasound irradiator, which is the object of the present invention, is case (1) (
1), this case l is connected at one end to the tip (2) and at the other end to a holder 3, which at its end connects the illuminator of the invention to a control unit. Plug to connect to (4)
has. This control unit is not shown in the drawings as it does not form part of the invention. Any suitable prior art control unit (e.g., Tittse et al., "Polu
provodnikovayaskhemotekhn
ika” + 1983+ Mir Publishing, Moscow.

を参照のこと)を使用することができる。) can be used.

チップ2は、第2図に示すように、超音波により生物組
織に影響を与えるための手段(5)を備えている。この
手段(5)は3対のピエゾセラミックプレー)(6)を
含む(第1図及び第3図)。
The chip 2 is equipped with means (5) for influencing biological tissue with ultrasound, as shown in FIG. This means (5) comprises three pairs of piezoceramic plates (6) (FIGS. 1 and 3).

各対において、ピエゾセラミックプレート(6)はケー
ス(1)の先端部(2)の長軸(7)に関して対称的で
ある(第3図)。
In each pair, the piezoceramic plates (6) are symmetrical about the long axis (7) of the tip (2) of the case (1) (FIG. 3).

本発明の例示された具体例において、照射器の手段(5
)は3対のピエゾセラミックプレート(6)を有する。
In an illustrated embodiment of the invention, the illuminator means (5
) has three pairs of piezoceramic plates (6).

しかしながら、ピエゾセラミックプレート(6)の数は
、超音波により影響を受けるべき面積及び侵入された生
物組織のサイズに依存して1個ないし複数と異なること
ができる。
However, the number of piezoceramic plates (6) can vary from one to several depending on the area to be affected by ultrasound and the size of the biological tissue penetrated.

先端部2は侵入された生物組織の解剖学的特異性に適合
するように多様な形状をとることができる。本発明の好
ましい態様においては、照射器は前立腺の治療のために
設計され、そしてそれ故に長内形ガイドを有する円筒状
である。
The tip 2 can take on a variety of shapes to suit the anatomical specificities of the biological tissue being invaded. In a preferred embodiment of the invention, the irradiator is designed for the treatment of the prostate and is therefore cylindrical with an elongated internal guide.

先端部(2)(第4図)は金属製である。その末端(8
)は適当な絶縁材料から作られ、先端部(2)の内部の
導電棒(9)と患者の器官とが直接に接触しないように
されている。先端部(2)から導電棒(9)を隔離する
絶縁体10を伴って、該棒(9)は先端部の末端(8)
にねじ込まれている。
The tip (2) (Fig. 4) is made of metal. Its end (8
) is made of a suitable insulating material to prevent direct contact between the conductive rod (9) inside the tip (2) and the patient's organs. With an insulator 10 separating the conductive rod (9) from the tip (2), said rod (9) is connected to the distal end (8) of the tip.
is screwed into.

前記棒(9)は、絶縁体ワッシャ=(11)及びナンド
(12)により先端部(2)に固定される。絶縁体(1
0)はワッシャー(13)及びナラl−(14)により
先端部(2)の末端(8)に押し付けられる。
The rod (9) is fixed to the tip (2) by an insulator washer (11) and a nand (12). Insulator (1
0) is pressed against the distal end (8) of the tip (2) by the washer (13) and the lug (14).

絶縁体(10)は接触ワッシャー(15)を備えており
、このワッシャーによりピエゾセラミックプレート(6
)(第2図)が導電棒(9)を介して制御ユニット(1
6) (第5図)に電気的に接続される。
The insulator (10) is provided with a contact washer (15), by means of which the piezoceramic plate (6)
) (Fig. 2) is connected to the control unit (1) via the conductive rod (9).
6) Electrically connected to (Fig. 5).

第5図は、本発明の洞内超音波照射器を含んで成る超音
波処理装置の好ましい具体例のブロック線図である。
FIG. 5 is a block diagram of a preferred embodiment of an ultrasonic treatment apparatus comprising the intracavity ultrasonic irradiator of the present invention.

例示される装置は制御ユニット(16)に接続された高
周波発信器(17)を含んで成る。超音波により生物組
織に影響を与えるための手段(5)のプレート(6)は
この発信器に接続される。該手段(5)は本発明の照射
器に組込まれているものである。
The illustrated device comprises a high frequency oscillator (17) connected to a control unit (16). The plate (6) of the means (5) for influencing biological tissue with ultrasound waves is connected to this transmitter. Said means (5) is incorporated in the irradiator of the present invention.

発信器(17)は任意の従来技術の装置であることがで
きる(例えば、TsBNTIMedprom、  ソ連
邦。
The transmitter (17) can be any prior art device (eg TsBNTI Medprom, USSR).

[八pparat dlya ultrazuukou
oy terapii J 、モスクワ、 1980を
参照のこと)。制御ユニット(16)は任意の既知ユニ
ット、例えば前記のものであることができる。
[8 pparat dlya ultrazuukou
oy terapii J, Moscow, 1980). The control unit (16) can be any known unit, such as those mentioned above.

本発明の洞内超音波照射器は次のように作動する。The intrasinus ultrasound irradiator of the present invention operates as follows.

発信器(17) (第5図)により発生した高周波が制
御ユニット(16)、導電棒(9)(第2図)及び接触
ワッシャー(15)を介して、電気振動を超音波振動に
転換するピエゾセラミックプレー巨6)に供給される。
The high frequency generated by the transmitter (17) (Fig. 5) converts the electric vibration into ultrasonic vibration through the control unit (16), the conductive rod (9) (Fig. 2) and the contact washer (15). It is supplied to the piezoceramic play giant 6).

制御ユニット(16)による各対のピエゾセラミックプ
レー)(6)(第5図)の所定の順序での接続及び遮断
により、侵入された生物組織の全体、例えば罹患した前
立腺の全体に超音波の影響を与えることが可能となる。
By connecting and disconnecting each pair of piezoceramic plates (6) (FIG. 5) in a predetermined sequence by the control unit (16), ultrasound waves are transmitted throughout the invaded biological tissue, for example the entire diseased prostate gland. It becomes possible to have an influence.

本発明の洞内超音波照射器を用いて慢性前立腺炎の患者
45人を治療した場合、慢性痔核が再発した患者は居な
かった。排便時の出血及び痛みの症状はいずれも存在し
なかった。わずか8人(17,8χ)の患者が第一の3
回の処置の後に直腸領域の不快感を感じたが、これはそ
の後の処置の間に消失した。
When 45 patients with chronic prostatitis were treated using the intrasinus ultrasound irradiator of the present invention, none of the patients had recurrence of chronic hemorrhoids. There were no symptoms of bleeding or pain during defecation. Only 8 (17,8χ) patients received the first 3
I felt discomfort in the rectal area after one procedure, but this disappeared during subsequent procedures.

慢性前立腺炎を有する患者の超音波処理のための本発明
の洞内照射器の使用により治療過程の有効性が実質的に
増加する。患者の88%の健康が改善され又は実質的に
改善される。患者の12%においては変化が認められな
かった。直腸疾患(慢性痔核、直腸裂、直腸肛門炎、括
約筋炎)が再発した患者はなかった。
The use of the intrasinus irradiator of the invention for ultrasound treatment of patients with chronic prostatitis substantially increases the effectiveness of the treatment process. The health of 88% of patients is improved or substantially improved. No change was observed in 12% of patients. No patients had recurrence of rectal disease (chronic hemorrhoids, fissure recti, anorectal inflammation, or sphincteritis).

〔発明の効果〕〔Effect of the invention〕

本発明の洞内超音波照射器は使用が簡単であり、医療職
員の仕事を促進し、影響される生物組織の確実な超音波
治療を保証し、創傷及びその傷害を防止し、そして患者
が療法を確実にするのを助ける。
The intrasinus ultrasound irradiator of the present invention is easy to use, facilitates the work of medical personnel, ensures reliable ultrasound treatment of affected biological tissues, prevents wounds and their injuries, and allows patients to Helps ensure therapy.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の洞内超音波照射器の正面図である。 第2図は第1図の線■−■にそっての断面図(拡大図)
である。 第3図は第1図の照射器の先端部の正面図(拡大図)で
ある。 第4図は第3図の態様の長手断面図である。 第5図は第1図の照射器を含んで成る超音波治療装置の
ブロック線図である。 図中、 1、ケース、     2.先端部、 3、ホルダー、     4.プラグ、5、超音波によ
り生物組織に影響を与える手段、6、ピエゾセラミック
プレート、   7.長軸、8、末端、       
9.導電棒、10、絶縁体、     11.ワッシャ
ー、12、ナンド、     13.ワッシャー、14
、ナツト、     15.接触ワッシャー、16.制
御ユニット、  170発信器。
FIG. 1 is a front view of the intracavity ultrasound irradiator of the present invention. Figure 2 is a cross-sectional view (enlarged view) taken along the line ■-■ in Figure 1.
It is. FIG. 3 is a front view (enlarged view) of the tip of the irradiator shown in FIG. 1. FIG. 4 is a longitudinal sectional view of the embodiment of FIG. 3. FIG. 5 is a block diagram of an ultrasonic treatment apparatus including the irradiator of FIG. 1. In the figure: 1. Case; 2. Tip part, 3. Holder, 4. Plug, 5. Means for influencing biological tissue by ultrasound, 6. Piezoceramic plate, 7. long axis, 8, terminal;
9. Conductive rod, 10, insulator, 11. Washer, 12, Nando's, 13. Washer, 14
, Natsuto, 15. contact washer, 16. Control unit, 170 transmitter.

Claims (1)

【特許請求の範囲】 1、超音波により生物組織に影響を与えるための手段(
5)を備えた先端部(2)を有するケース(1)を含む
洞内超音波照射器において、超音波によって生物組織に
影響を与えるための前記手段(5)が少なくとも1対の
ピエゾセラミックプレート(6)を含むことを特徴とす
る洞内超音波照射器。 2、各対において前記ピエゾセラミックプレート(6)
が前記ケース(1)の先端部(2)の長軸(7)に関し
て対称的であることを特徴とする請求項1に記載の洞内
超音波照射器。
[Claims] 1. Means for influencing biological tissue by ultrasound (
5), said means (5) for influencing biological tissue by means of ultrasound comprising at least one pair of piezoceramic plates; (6) An intrasinus ultrasound irradiator characterized by comprising: 2. The piezoceramic plate (6) in each pair
The intrasinus ultrasonic irradiator according to claim 1, characterized in that: is symmetrical with respect to the long axis (7) of the distal end (2) of the case (1).
JP2039891A 1989-02-23 1990-02-22 Instrument for ultrasonic irradiation in cavity Pending JPH02297354A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU4650476 1989-02-23
SU4650476 1989-02-23

Publications (1)

Publication Number Publication Date
JPH02297354A true JPH02297354A (en) 1990-12-07

Family

ID=21428746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2039891A Pending JPH02297354A (en) 1989-02-23 1990-02-22 Instrument for ultrasonic irradiation in cavity

Country Status (5)

Country Link
JP (1) JPH02297354A (en)
CN (1) CN1045037A (en)
BG (1) BG49960A1 (en)
FR (1) FR2643272A1 (en)
IT (1) IT1238827B (en)

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US5368558A (en) * 1991-01-11 1994-11-29 Baxter International Inc. Ultrasonic ablation catheter device having endoscopic component and method of using same
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Also Published As

Publication number Publication date
IT1238827B (en) 1993-09-03
IT9041533A1 (en) 1991-08-22
FR2643272A1 (en) 1990-08-24
CN1045037A (en) 1990-09-05
BG49960A1 (en) 1992-04-15
IT9041533A0 (en) 1990-02-22

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