FR2658412A1 - Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy - Google Patents

Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy Download PDF

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Publication number
FR2658412A1
FR2658412A1 FR9001981A FR9001981A FR2658412A1 FR 2658412 A1 FR2658412 A1 FR 2658412A1 FR 9001981 A FR9001981 A FR 9001981A FR 9001981 A FR9001981 A FR 9001981A FR 2658412 A1 FR2658412 A1 FR 2658412A1
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Prior art keywords
probe
optical fiber
channel
ureteral
endoscopic
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FR9001981A
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French (fr)
Inventor
Amiel Jean
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Individual
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Individual
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Priority to FR9001981A priority Critical patent/FR2658412A1/en
Priority to AU73463/91A priority patent/AU657905B2/en
Priority to US07/655,601 priority patent/US5342350A/en
Priority to FR9101843A priority patent/FR2684902B1/en
Priority to PCT/FR1991/000124 priority patent/WO1991011963A1/en
Priority to JP91505194A priority patent/JPH05506792A/en
Priority to CA002075821A priority patent/CA2075821C/en
Priority to DE1991905043 priority patent/DE515539T1/en
Priority to EP91905043A priority patent/EP0515539B2/en
Priority to DE69104473T priority patent/DE69104473T3/en
Priority to AT91905043T priority patent/ATE112471T1/en
Publication of FR2658412A1 publication Critical patent/FR2658412A1/en
Withdrawn legal-status Critical Current

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    • 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
    • A61B18/20—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 laser
    • A61B18/22—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 laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/26—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 laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments 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
    • A61B1/313—Instruments 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 introducing through surgical openings, e.g. laparoscopes
    • 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
    • A61B2017/22038—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 a guide wire
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Electromagnetism (AREA)
  • Otolaryngology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Endoscopes (AREA)
  • Laser Surgery Devices (AREA)

Abstract

The invention relates to an endoscopic device permitting endoscopic crushing of calculi by lithotripsy, in particular by pulsed laser, characterised in that it comprises a flexible ureteral probe, made in particular of plastic. The multi-channel laser-video probe comprises a distal end formed by four independent inlet systems permitting access to four longitudinal channels (1, 2, 3, 4) which are delimited within the body of the probe by four internal partitions. The introduction systems and the channels of the body of the probe are connected at the level of the base (5) of the body of the probe. The length of the probe (6) is variable, and its external diameter is very small, for example equal to 7 Fch or even smaller (7). This multi-channel structure permits the simultaneous use, if appropriate, of a sequenced optical fibre of very small diameter transmitting images, a laser fibre of very small diameter, a guide wire of very small diameter, and an irrigation line.

Description

DISPOSITIF ENDOSCOPIQUE NOTAMMENT POUR LA DESTRUCTION ENDOSCOPIQUE
DE CALCULS PAR LITHOTRITIE.ENDOSCOPIC DEVICE, IN PARTICULAR FOR ENDOSCOPIC DESTRUCTION
OF CALCULATIONS BY LITHOTRITIE.

DESCRIPTiF
Le diagnostic et le traitement endoscopique des lithiases, tumeurs et affections congénitales ou autres sous contrôle vidéoscopique par laser sont effectivement réalisables aujourd'hui.descriptive
Diagnosis and endoscopic treatment of lithiases, tumors and congenital or other conditions under videoscopic control by laser are actually feasible today.

Selon un premier aspect, l'invention fournit un dispositif endoscopique notamment pour la destruction endoscopique des calculs par lithotritie, notamment par laser pulsé caractérisé en ce qu'il comprend une sonde urétérale souple, en particulier réalisée en matière plastique. According to a first aspect, the invention provides an endoscopic device, in particular for the endoscopic destruction of lithotripsy calculations, in particular by pulsed laser, characterized in that it comprises a flexible ureteral probe, in particular made of plastic material.

Selon une variante particulière de l'invention, le dispositif est caractérisé en ce que la sonde urétérale est multicanalaire en comportant plusieurs canaux longitudinaux permettant l'introduction simultanée d'au moins une fibre optique capable de transmettre l'énergie d'unrayonnement laser jusqu'aux calculs a' détruire, et au moins une fibre optique capable de transmettre un rayonnement lumineux permettant l'observation de la zone a traiter. According to a particular variant of the invention, the device is characterized in that the ureteral probe is multi-channel having several longitudinal channels allowing the simultaneous introduction of at least one optical fiber capable of transmitting the energy of a laser radiation up to calculations to destroy, and at least one optical fiber capable of transmitting light radiation for observation of the area to be treated.

Selon une autre variante de l'invention, le dispositif est caractérisé en ce que la sonde urétérale comporte également un canal longitudinal permettant l'irrigation de la zone à traiter, par l'injection d'une solution d'irrigation/ en particulier une solution saline.  According to another variant of the invention, the device is characterized in that the ureteral catheter also comprises a longitudinal channel for irrigation of the zone to be treated, by the injection of an irrigation solution / in particular a solution saline.

Selon une autre variante particulière de l1invention > le dispositif est caractérisé en ce que la sonde urétérale comprend également un canal longitudinal permettant d'introduire un élément formant guide préalablement introduit dans l'urètre et/ou l'uretère; permettant parle suite de guider la sonde urétérale lors de son introduction dans l'urètre et/ou l'uretère.  According to another particular variant of the invention> the device is characterized in that the ureteral catheter also comprises a longitudinal channel for introducing a guide element previously introduced into the urethra and / or the ureter; allowing the following to guide the ureteral probe during its introduction into the urethra and / or the ureter.

Selon une autre variante particulière de l'invention > le dispositif est caractérisé en ce que la fibre optique permettant de transmettre l'énergie laser présente un diamètre d'environ 320 microns. According to another particular variant of the invention, the device is characterized in that the optical fiber for transmitting the laser energy has a diameter of approximately 320 microns.

Selon une autre variante particulière de l'inventionl le dispositif est caractérisé en ce que la fibre optique transmettant le rayonnement optique d'observation de la zone de traitement présente un diamètre d'environ 500 microns, cette fibre optique étant munie d'une lentille permettant de visualiser la lumière endo-urétéral e.  According to another particular variant of the invention, the device is characterized in that the optical fiber transmitting the optical observation radiation of the treatment zone has a diameter of approximately 500 microns, this optical fiber being provided with a lens allowing to visualize the endoureteral light e.

Selon une autre variante particulière de l'invention, le dispositif est caractérisé en ce que l'élément guide dénommé également
Leader, présente un diamètre de 0,025 em. According to another particular variant of the invention, the device is characterized in that the guide element also denominated
Leader, has a diameter of 0.025 em.

Selon une autre variante particulière de l'invention, le dispositif est caractérisé en ce que la sonde urétérale comporte quatre canaux, un canal pour la fibre transmettant le rayonnement laser, un canal pour la fibre optique permettant l'observation visuelle de la zone a traiter, un canal d'irriyati on, et enfin un canal pour l'élément guide permettant le guidage de la zone urétérale lors de son introduction dans l'urètre etfou l'uretère.  According to another particular variant of the invention, the device is characterized in that the ureteral probe comprises four channels, a channel for the fiber transmitting the laser radiation, a channel for the optical fiber allowing the visual observation of the area to be treated. , an irriyati on channel, and finally a channel for the guide element for guiding the ureteral area during its introduction into the urethra and / or the ureter.

Selon une autre variante particulière de l'invention, le dispositif est carnctéhsé en ce que la fibre optique, en provenance de la zone de traitement > est reliée à un dispositif vidéo qui permet notamment de reconstituer l'image sur un écran vidéo, ce qui permet une observation aisée de la zone de traitement. Cette fibre
optique est de préférence ordonnée pour transmettre des images au dis
positif vidéo. According to another particular variant of the invention, the device is carnctéhsé in that the optical fiber, from the treatment zone> is connected to a video device which allows in particular to reconstitute the image on a video screen, which allows easy observation of the treatment area. This fiber
optically is preferably ordered to transmit images to the
positive video.

Selon une autre variante particulière de l'invention > le dispositif
est caractérisé par l'utilisation d'une sonde urétérale, de
préférence multicanalaire pour la destruction des calculs rénaux
ou biliaires par ondes de choc; notamment a' l'aide d'un laser pulse,
de preference a colorant.According to another particular variant of the invention> the device
is characterized by the use of a ureteral catheter,
multichannel preference for the destruction of kidney stones
or bile waves by shock waves; especially with the help of a pulse laser,
preferably dye.

La présente invention est un procédé et un nouveau concept qui
permet diagnostics et traitements endoscopiques. L'invention consiste en une sonde multicanalaire pour l'utilisation concomittante ou non d'une fibre optique ordonnée de très petit diamètre (par exemple de 600 microns ou même inférieur) transmettant des images, d'une fibre laser de très petit diamètre (par exemple de 320 microns ou même inférieurS, d'un fil guide de très petit diamètre (par exemple de 0,025 ou même inferieur), et d'un canal d'irrigation.The present invention is a method and a new concept which
allows diagnostics and endoscopic treatments. The invention consists of a multichannel probe for the concomitant or non-concomitant use of an ordered optical fiber of very small diameter (for example 600 microns or even less) transmitting images, of a very small diameter laser fiber (by 320 microns or even lower, a guide wire of very small diameter (for example 0.025 or even lower), and an irrigation channel.

La sonde est composée de matériaux biocompatibles (exemple=PVC, silicone ...), rendue radio-opaque, et son diamètre extérieur adapté par exemple inférieur ou égal a 7 French
Charriere). L'extrémité distale de la sonde est composée de 4 systèmes ci'entrées séparés et individuels:
-une entrée pour la fibre laser II, fig. 1/2);
-une entrée pour la fibre optique ordonnée transmettant des
images (2, fig. 1/2);
-une entrée pour le fil guide (3 > fig 1
-une entrée pour l'irrigation (4, fig. 1/2) qui peut être munie
d'un robinet d'arnêt. The probe is composed of biocompatible materials (example = PVC, silicone ...), made radiopaque, and its adapted outside diameter for example less than or equal to 7 French
Charriere). The distal end of the probe is composed of 4 separate and individual input systems:
an input for the laser fiber II, FIG. 1/2);
an input for the ordered optical fiber transmitting
pictures (2, Fig. 1/2);
an input for the guidewire (3> fig 1
-an entry for irrigation (4, fig 1/2) that can be provided
a stopcock.

La longueur de la sonde est variable suivant la destination thérapeutique ou de diagnostic envisagée. The length of the probe is variable depending on the intended therapeutic or diagnostic purpose.

Le corps de la sonde (6, fig. 1/2) est de forme arrondie ou autres de façon a être le mieux adapté a l'utilisation souhaitée.  The body of the probe (6, Fig. 1/2) is rounded or otherwise shaped so as to be best suited to the desired use.

La lumière interne de la sonde est divisée par 4 cloisons de refend (8, 9, 10, 11, fig. 2/2) disposées longitudinalement et parallèles au grand axe de la sonde, de façon a réaliser 4 canaux distincts (1, 2, 3, 4, fig. 2/2). Chaque canal fait suite a un des systèmes d'entrée précédement décrits. Le raccordement entre le système d'entrée et son canal spécifique se fait au niveau de la base du corps de la sonde (5 > fig. 1/2).  The inner lumen of the probe is divided by 4 partitions (8, 9, 10, 11, Fig. 2/2) arranged longitudinally and parallel to the major axis of the probe, so as to produce 4 distinct channels (1, 2 , 3, 4, Fig. 2/2). Each channel follows one of the input systems previously described. The connection between the input system and its specific channel is at the base of the probe body (5> Fig. 1/2).

L'extémité distale de la sonde (7 > fig. 1 /2) peut avoir une section bisautée, ou toute formes homothétiques, ou ces formes déduites de ces homothéties par translation, rotation, ou translation rotation associée d'un ou de plusieurs éléments de la figure 2/2. The distal end of the probe (7> Fig. 1/2) may have a beveled section, or any homothetic shape, or these forms deduced from these homotheties by translation, rotation, or translation associated rotation of one or more elements of Figure 2/2.

L'extrémité du canal conducteur de la fibre laser est située au niveau de l'extrémité distale de la sonde (7) fig. 1 /2) en position 1 (fig. 2/2), aboutissant à l'extrémité de cette sonde. The end of the conductive channel of the laser fiber is located at the distal end of the probe (7) fig. 1/2) in position 1 (Fig. 2/2), ending at the end of this probe.

L'extrémité du canal irrigateur est située au niveau de l'extrémité distale de la sonde (7, fig. 112f en position 4 (fig. 2~2) aboutissant a l'extrémité de cette sonde. The end of the irrigator channel is located at the distal end of the probe (7, Fig. 112f in position 4 (Fig. 2 ~ 2) terminating at the end of this probe.

L'extrémité du canal conducteur de la fibre optique est située au niveau de l'extrémité distale de la sonde (7, fig. 1~2) en position 2 (fig. 2/2) aboutissant a l'extrémité de cette sonde. The end of the conductive channel of the optical fiber is located at the distal end of the probe (7, Fig. 1 ~ 2) in position 2 (Fig. 2/2) leading to the end of this probe.

L'extrémité du canal conducteur du fil guide est situé au niveau de l'extrémité distale de la sonde (7 > fig. 1/2) en position 3 (fig. 2/2) aboutissant à l'extrémité de cette sonde. The end of the conductive channel of the guide wire is located at the distal end of the probe (7> Fig. 1/2) in position 3 (Fig. 2/2) leading to the end of this probe.

La sonde multicanalaire peut être utilisée avec ou sans l'aide de tout moyen endoscopique existant présentement ou devant être inventé. The multichannel probe can be used with or without the aid of any endoscopic means currently existing or to be invented.

Selon une autre variante avantageuse de l'invention, en
fin d'opération, on peut couper l'extrêmité apparente de la sonde
pour la transformer en une sonde urétérale de drainage simple de
l'urine. According to another advantageous variant of the invention,
end of operation, we can cut the apparent end of the probe
to turn it into a ureteral catheter for simple drainage of
urine.

APPLICATIONS
La sonde multicanalaire peut être utilisée avec ou sans l'aide d'un système endoscopique existant ou devant être créé, sous anesthésie lo#cale > loco-régionale ou générale. La fibre laser peut être remplacée par tout autre procédé permettant de coaguler ou de sectionner dans la mesure oû son diamètre extérieur est compatible avec le diamètre interieur d'un des canaux.APPLICATIONS
The multichannel probe can be used with or without the aid of an existing endoscopic system or to be created under local or loco-regional anesthesia. The laser fiber may be replaced by any other method for coagulating or cutting to the extent that its outer diameter is compatible with the inner diameter of one of the channels.

La sonde multicanalaire permet le traitement et le diagnostic des lithiases, tumeurs et affections congénitales ou autres. The multichannel probe allows the treatment and diagnosis of lithiases, tumors and congenital or other conditions.

Ce système multicanalaire peut permettre de traiter par exemple en milieu hostile comme des structures irradiéesl des boues par exemple metalliques a l'interieur d'organes mecaniques, per exemple les tubes des générateurs de vapeur des centrales de production thermique.  This multichannel system can make it possible to treat, for example, in a hostile environment such as irradiated structures, sludges for example metal inside mechanical organs, for example the tubes of the steam generators of the thermal production plants.

Claims (9)

REVENDICATIONS 1. Dispositif endoscopique notamment permettant la destruction endoscopique des calculs par lithotritiel notamment par laser pulsés caractérisé en ce qu'il comprend une sonde urétérale souple en particulier réalisée en matière plastique. 1. Endoscopic device including allowing the endoscopic destruction of lithotripsy calculus including pulsed laser characterized in that it comprises a flexible ureteral probe, in particular made of plastic. 2. Dispositif selon la revendication 1 caractérisé en ce que la sonde urétérale est multicanalaire en comportant plusieurs canaux longitudinaux permettant l'introduction simultanée d'au moins une fibre optique capable de transmettre l'énergie d'un rayonnement laser jusqu'aulx calculs a' détruire, et au moins une fibre optique capable de transmettre un rayonnement lumineux permettant l'observation de la zone a traiter. 2. Device according to claim 1 characterized in that the ureteral catheter is multichannel having several longitudinal channels for the simultaneous introduction of at least one optical fiber capable of transmitting the energy of laser radiation up to the calculations a ' destroying, and at least one optical fiber capable of transmitting light radiation for observing the area to be treated. 3. Dispositif selon la revendication 1 ou 2 caractérisé en ce que la sonde urétérale comporte également un canal longitudinal permettant l'irrigation de la zone a traiter par l'injection d'une solution d'irrigation, en particulier une solution saline. 3. Device according to claim 1 or 2 characterized in that the ureteral catheter also comprises a longitudinal channel for irrigation of the area to be treated by the injection of an irrigation solution, in particular a saline solution. 4. Dispositif selon l'une quelconque des revendications précedentes, caractérisé en ce que la sonde urétérale comprend également un canal longitudinal permettant d'introduire un élément formant guide préalablement introduit dans l'urètre et/ou l'uretere, permettant par la suite de guider la sonde urétérale lors de son introduction dans l'urètre et/ou l'uretère. 4. Device according to any one of the preceding claims, characterized in that the ureteral catheter also comprises a longitudinal channel for introducing a guide element previously introduced into the urethra and / or the ureter, allowing thereafter guide the ureteral catheter when it is introduced into the urethra and / or the ureter. 5. Dispositif selon l'une quelconque des revendications precédentes, caractérisé en ce que la fibre optique permettant de transmettre l'énergie laser présente un diamètre d'environ 400 microns. 5. Device according to any one of the preceding claims, characterized in that the optical fiber for transmitting the laser energy has a diameter of about 400 microns. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la fibre optique transmettant le rayonnement optique d'observation de la zone de traitement présente un diamètre d'environ 500 microns, cette fibre optique étant munie d'une lentille permettant de visualiser la lumière endo-urétérnle.  Device according to any one of the preceding claims, characterized in that the optical fiber transmitting the optical observation radiation of the treatment zone has a diameter of approximately 500 microns, this optical fiber being provided with a lens allowing to visualize endo-ureteric light. 7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément guide, dénommé également Leader présente un diamètre de 0 > 025 cm. 7. Device according to any one of the preceding claims, characterized in that the guide element, also called Leader has a diameter of 0> 025 cm. 8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la sonde urétérale comporte quatre canaux, un canal pour la fibre transmettant le rayonnement laser, un canal pour la fibre optique permettant l'observation visuelle de la zone a traiter, un canal d'irrigation, et enfin un canal pour l'élément guide permettant le guidage de la zone urétérale lors de son introduction dans l'urètre et/ou l'uretère.  8. Device according to any one of the preceding claims, characterized in that the ureteral probe comprises four channels, a channel for the fiber transmitting laser radiation, a channel for the optical fiber for visual observation of the area to be treated, an irrigation channel, and finally a channel for the guide element for guiding the ureteral area during its introduction into the urethra and / or the ureter. 9. Dispositif selon l'une quelconque des revendications precedentes, caractérisé en ce que la fibre optique, en provenance de la zone de traitement, est reliée par un dispositif vidéo qui permet notamment de reconstituer l'image sur un écran vidéo, ce qui permet une observation aisée de la zone de traitement. 9. Device according to any one of the preceding claims, characterized in that the optical fiber, from the treatment area, is connected by a video device which allows in particular to reconstruct the image on a video screen, which allows easy observation of the treatment area. 10. Utilisation d'une sonde urétérale, de préférence 10. Use of a ureteral catheter, preferably multicanalaire, telle que décrite à l'une quelconque des multichannel, as described in any of the revendications 1 à 9, pour la destruction des calculs rénaux ou Claims 1 to 9 for the destruction of kidney stones or biliaires par ondes de choc, notamment à l'aide d'un laser pulsé, bile waves, especially with the help of a pulsed laser, de préférence à colorants. preferably dyes. 11. Utilisation d'une sonde urétérale, de préférence 11. Use of a ureteral catheter, preferably multicanalaire, telle que décrite à l'une quelconque des multichannel, as described in any of the revendications 1 à 9, pour traiter par exemple en milieu hostile Claims 1 to 9, for example to treat in a hostile environment comme des structures irradiées, des boues par exemple métalliques à as irradiated structures, sludges for example metal to l'intérieur d'organes mécaniques, par exemple les tubes des the inside of mechanical parts, for example the tubes of Jénérateurs de vapeur des centrales de production thermique.  Steam generators of thermal power plants.
FR9001981A 1990-02-16 1990-02-19 Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy Withdrawn FR2658412A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR9001981A FR2658412A1 (en) 1990-02-19 1990-02-19 Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy
AU73463/91A AU657905B2 (en) 1990-02-16 1991-02-15 Multi-channel probe
US07/655,601 US5342350A (en) 1990-02-16 1991-02-15 Method of endoscopically treating lithiases with a multichannel probe suitable for draining the treated lithiases
FR9101843A FR2684902B1 (en) 1990-02-16 1991-02-15 MULTICHANNEL PROBE WITH AT LEAST THREE INDEPENDENT LONGITUDINAL CHANNELS FOR THE DESTRUCTION OF LITHIASIC OBSTACLES BY ENDOSCOPIC ROUTE AND THE DESTRUCTION OF MINERAL DEPOSITS IN CONDUITS.
PCT/FR1991/000124 WO1991011963A1 (en) 1990-02-16 1991-02-15 Multi-channel probe
JP91505194A JPH05506792A (en) 1990-02-16 1991-02-15 Multi-passage sonde having at least three independent longitudinal passages for use in the destruction of calculus obstructions and inorganic deposits in ducts by endoscopy
CA002075821A CA2075821C (en) 1990-02-16 1991-02-15 Multi-channel probe having at least three independent longitudinal channels for endoscopically lithiastic obstacles and for destroying mineral deposits in ducts
DE1991905043 DE515539T1 (en) 1990-02-16 1991-02-15 PROBE WITH SEVERAL CHANNELS.
EP91905043A EP0515539B2 (en) 1990-02-16 1991-02-15 Multi-channel probe
DE69104473T DE69104473T3 (en) 1990-02-16 1991-02-15 PROBE WITH SEVERAL CHANNELS.
AT91905043T ATE112471T1 (en) 1990-02-16 1991-02-15 PROBE WITH MULTIPLE CHANNEL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9001981A FR2658412A1 (en) 1990-02-19 1990-02-19 Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy

Publications (1)

Publication Number Publication Date
FR2658412A1 true FR2658412A1 (en) 1991-08-23

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Application Number Title Priority Date Filing Date
FR9001981A Withdrawn FR2658412A1 (en) 1990-02-16 1990-02-19 Endoscopic device, in particular for endoscopic crushing of a calculus by lithotripsy

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Country Link
FR (1) FR2658412A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266928A1 (en) * 1986-10-17 1988-05-11 Spectramed, Inc. Multiple-function cardiovascular catheter system
US4800876A (en) * 1981-12-11 1989-01-31 Fox Kenneth R Method of and apparatus for laser treatment of body lumens
US4887600A (en) * 1986-04-22 1989-12-19 The General Hospital Corporation Use of lasers to break down objects
WO1989012479A1 (en) * 1988-06-16 1989-12-28 Optimed Technologies, Inc. Angioplasty catheter with integral fiber optic
EP0350021A2 (en) * 1988-07-08 1990-01-10 Cauldron Limited Partnership Removal of surface contaminants by irradiation from a high-energy source
EP0370115A1 (en) * 1988-06-06 1990-05-30 Sumitomo Electric Industries, Ltd. Catheter for diagnosis and therapy

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800876A (en) * 1981-12-11 1989-01-31 Fox Kenneth R Method of and apparatus for laser treatment of body lumens
US4800876B1 (en) * 1981-12-11 1991-07-09 R Fox Kenneth
US4887600A (en) * 1986-04-22 1989-12-19 The General Hospital Corporation Use of lasers to break down objects
EP0266928A1 (en) * 1986-10-17 1988-05-11 Spectramed, Inc. Multiple-function cardiovascular catheter system
EP0370115A1 (en) * 1988-06-06 1990-05-30 Sumitomo Electric Industries, Ltd. Catheter for diagnosis and therapy
WO1989012479A1 (en) * 1988-06-16 1989-12-28 Optimed Technologies, Inc. Angioplasty catheter with integral fiber optic
EP0350021A2 (en) * 1988-07-08 1990-01-10 Cauldron Limited Partnership Removal of surface contaminants by irradiation from a high-energy source

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