WO1989012244A2 - Dispositif de transfert de rayonnement du laser sur une fibre optique - Google Patents
Dispositif de transfert de rayonnement du laser sur une fibre optique Download PDFInfo
- Publication number
- WO1989012244A2 WO1989012244A2 PCT/FR1989/000261 FR8900261W WO8912244A2 WO 1989012244 A2 WO1989012244 A2 WO 1989012244A2 FR 8900261 W FR8900261 W FR 8900261W WO 8912244 A2 WO8912244 A2 WO 8912244A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical
- radiation
- dye
- laser
- optical fiber
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4226—Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount
-
- 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
- A61B18/24—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 with a catheter
- A61B18/245—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 with a catheter for removing obstructions in blood vessels or calculi
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/022—Constructional details of liquid lasers
-
- 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
- A61B17/22004—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 using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4234—Passive alignment along the optical axis and active alignment perpendicular to the optical axis
Definitions
- Device for transferring an optical ray or beam emitted by a laser onto an optical fiber and apparatus for generating shock waves for destroying targets, in particular tissues, lithiasis or concretions, provided with such a device.
- the invention essentially relates to a device for transferring an optical ray or beam emitted by a laser onto an optical fiber and an apparatus for generating shock waves for the st ruct ion of cells, in particular from st, l it h ia s or concretions, provided with such a device.
- lithotripsy various devices are now available for the destruction of tissues, lithiasis or concretions, intended to be removed from inside the human body.
- a high frequency shock wave generator comprising a truncated ellipsoidal reflector (80), generating shock waves at the first focus of the ellipsoid which are focused on the second focus of the ellipsoid where the target to be destroyed is located.
- This device is used in the medical field, in particular for destroying tissue, and can also be used to destroy lithiasis or concretions.
- devices are also known for generating shock waves for destroying targets, in particular lithiasis or concretions, from laser radiation.
- document WO-A-86/06269 describes the use of a laser for the destruction of lithiasis or concretions as well as other materials to be removed from the human body.
- the laser radiation is transmitted to the concretion to be destroyed via an optical fiber.
- the laser used delivers pulses having a wavelength, energy, intensity and duration of pulses capable of causing the destruction of the concretions, without the energy sufficient to cause damage to other nearby tissue.
- This document also corresponds to FR-A-2 580 922.
- the laser is preferably of the pulsed dye type, the pulses of which have durations of at least 10 nanometers, (preferably between 0.05 and 5 microseconds), and the energy of the pulse does not exceed 0.200 joules.
- the fiber is flexible and has a core diameter which does not exceed 1000 micrometers and which is preferably between 60 and 600 micrometers, and more precisely 200 micrometers.
- the laser pulses are applied in a short burst, preferably having a frequency higher than 10 Hertz, and the remaining fragments are crushed by single pulses.
- the wavelength used is preferably between 350 and 550 nanometers in the case of urinary calculi. Particularly preferred wavelengths are 251.504 to 450 nanometers (see page 2, lines 1 to 20 of FR-A-2 580 922).
- a device for transferring (16, 18) the radiation (20) emitted by the laser (22) comprises means for focusing the ray or optical beam (20) at a focal point, by means of a lens (18) focusing, constituting focusing means, and a device (16) for mounting the optical fiber (12) so that it receives optical radiation.
- the fiber (12) naturally passes through a uteroscope (14) to be brought close to the fiber to be destroyed, such as a lithiasis or concretion (10) (see page 3, lines 6 to 28).
- the present invention therefore aims to solve the new technical problem consisting in the supply of a solution making it possible to achieve reproducible, reliable positioning of the optical fibers in order to ensure the transfer of a radiation or optical beam on optical fibers, in the best conditions.
- Another object of the present invention is to solve the new technical problem consisting in providing a solution making it possible to carry out a transfer of a radiation or optical beam on optical fibers, making it possible to use standard optical fibers.
- the present invention also aims to solve the new technical problem consisting in the supply of a solution making it possible to transfer an optical radiation or beam on optical fibers in a very precise manner by a very precise positioning of the end of the optical fiber at a point of transfer of the radiation or optical beam, called focal point.
- the object of the present invention is to solve the new technical problem consisting in providing a solution making it possible to transfer an optical radiation or beam onto an optical fiber allowing movement in the plane perpendicular to the optical axis so as to bring the end of the optical fiber at a specific point of transfer, within wide limits of initial positioning of the end of the optical fiber.
- the present invention provides a device for transferring a radiation or optical beam traversing a path defining an optical axis, in particular coming from a laser, on an optical fiber, so as to convey this radiation or optical beam at a place of use, comprising means for focusing the radiation or optical beam at a focal point situated on the optical axis, and means for positioning the free end of the fiber intended to receive the radiation or optical beam, substantially at the focal point, characterized in that the positioning means comprise means for moving the end of the optical fiber, intended to receive the radiation or optical beam in a plane substantially perpendicular to the optical axis.
- the aforementioned displacement means comprise a set of two crossed plates, preferably of micrometric type, moving respectively in two perpendicular directions.
- the aforementioned positioning means comprise a support member for the optical fiber coming to be introduced into a reception member for the support member, which is integral in displacement with the aforementioned displacement means .
- the aforementioned support member comprises a substantially cylindrical sleeve provided with a central through hole having an axial narrowing of appropriate diameter to allow the optical fiber to pass substantially without play, this narrowing being preferably substantially close to one end of the sleeve intended to be located on the receiving side of the radiation or optical beam.
- a wedge element is temporarily arranged in the central orifice of the above-mentioned substantially cylindrical sleeve to serve as a stop for the insertion of the end of the optical fiber, way to lead to precise positioning of the end of the optical fiber in the sleeve.
- the optical fiber is secured to the support member by any suitable means, for example by bonding with any suitable bonding means.
- the aforementioned focusing means comprise a focusing lens.
- the aforementioned focusing means are mounted on a system of optical objectives comprising said focusing lens, making it possible to translate the position of the focal point on the optical axis.
- this objective system comprises an external member for controlling displacement by translation, preferably without rotation, of an internal member supporting the above-mentioned focusing means.
- the present invention also relates to an apparatus for generating shock waves for the destruction of targets, in particular tissues, lithiasis or concretions, comprising a device for generating an optical beam or radiation, preferably of the type laser, characterized in that it comprises a device for transferring a radiation or optical beam as defined above.
- the device for generating the aforementioned radiation or optical beam comprises at least one dye laser, preferably of the pulsed type.
- this shock wave generation apparatus it is characterized in that it comprises a fixed reservoir of dye connected in closed circuit with the dye laser.
- the shock wave generation apparatus comprises means for withdrawing the dye for withdrawing the dye from the closed circuit in a drain tank, preferably mobile, and means for reintroducing the dye into the closed drained circuit, preferably also using a mobile tank introduced in place of the mobile drain tank.
- this shock wave generation apparatus is characterized in that it comprises an internal loop for reprocessing the dye, advantageously via a filter, in particular with carbon active.
- shock wave generating apparatus it is characterized in that it comprises means for controlling the emission power of the laser by output at the detected intensity of the radiation or optical beam emitted by the laser.
- optical fibers can be used
- FIG. 2 schematically shows the closed circuit of the dye of the dye laser shown in Figure 1; and FIG. 3 represents in axial section in a plane passing through the optical axis the device for transferring the radiation or optical beam coming here from the laser, on the optical fiber.
- FIG. 1 With reference, first of all to FIG. 1, there is shown an apparatus for generating shock waves, represented by the general reference number 1.
- the apparatus includes a device (10) for generating an optical beam or optical radiation (12).
- this optical radiation is emitted by a laser which is advantageously of the dye type, preferably emitting pulses.
- a laser which is advantageously of the dye type, preferably emitting pulses.
- Such pulsed dye lasers are known, in particular from the documents cited in the introductory part of the description, and are therefore commercially available.
- These dye lasers usually include a dye cell (14) filled with dye, circulating in a closed circuit (18) shown in detail in Figure 2 and leading to an inlet (16) and an outlet (17) of dye by report to the cell (14).
- This laser also comprises, conventionally, a flash enclosure (20), emitting flashes by means of a rectilinear lamp (22) with flash.
- a cooling circuit (24) can be provided to cool the rectilinear lamp (22).
- a pulsed dye type laser giving relatively long pulse durations, of a duration of at least 100 nanoseconds preferably between 0.05 and 5 microseconds.
- the pulse wavelength is preferably between 350 and 550 nanometers, and the energy of the pulse does not exceed 0.5 Joules and preferably is included between 0.05 and 0.5 Joules.
- the laser pulses are applied in short burst, preferably having a frequency between 1 and 20 Hertz.
- the preferred dye according to the invention is coumarin.
- a total reflection cavity mirror (26) for the purpose of transmitting all of the optical radiation or of the optical beam (12) at the output of the device (10).
- a removable shutter (28) can be provided making it possible to interrupt the optical radiation at will, as well as a second so-called cavity mirror (30) with partial reflection, for example on the order of 30 to 35%, as is also known in lasers.
- a separating device (32) can be interposed at least temporarily, making it possible to separate part of the radiation or optical beam (12) into a fraction (12a) which is then used to calculate the intensity of the radiation or optical beam (12 ) emitted by the laser (10), as will be explained later.
- the transfer device according to the invention referenced (40) of the fraction (12b) of optical radiation C12) not separated by the separation device (32) on an optical fiber (42) whose opposite part (42b) can advantageously be incorporated into a uteroscope, so as to be disposed near the target to be destroyed referenced (44), for example constituted by a tissue, a lithiasis or a concretion, for example a renal lithiasis.
- the cavity mirror (26) is completely reflective for the emission wavelength of the dye laser but partially transmits the HeNe beam. This radiation makes it possible to carry out the adjustments of the transfer device (40), as explained below.
- This closed circuit (18) comprises a line (18a) leading to the outlet (17) of the dye cell (14) of the dye laser (10), as well as to a dye reservoir (60), fixed, internal to the device and therefore integrated into it.
- a line (18b) connects the fixed reservoir (60) to the inlet (16) of the dye cell (14) by means of recirculation means (62) such as a pump, possibly via 'a cooling device (64), for example with coils, and also optionally by means of a purification device (66) comprising for example a filter (68) arranged vertically, eliminating impurities as well as bubbles of air possibly contained in the circuit.
- It may for example be a melamine type filter (68), so as to introduce a dye into the dye cell (14) of extreme purity, not containing air bubbles (or microbubbles) .
- the porosity of this filter is therefore provided to also eliminate microbubbles.
- means of drawing off are provided.
- a filter preferably using activated carbon with the presence of a valve (94)
- FIG. 3 there is shown in detail a device for transferring the radiation or optical beam (12) on the optical fiber (42).
- This transfer device (40) comprises means (100) for focusing in radiation or optical beam (12), (here 12b), at a focal point (102) located on the optical axis (104) which is advantageously defined materially. by the radiation (52) of the auxiliary laser (50).
- This transfer device also includes means (106) for positioning the free end (42a) of the optical fiber (42), intended to receive the radiation or optical beam (12b) substantially at the focal point (102).
- These positioning means (106) comprise means (108) for moving the end (42a) of the optical fiber (42) in a plane substantially perpendicular to the optical axis.
- these displacement means (108) comprise a set of two crossed plates, preferably of the micrometric type, respectively referenced (110, 112), mounted one on the other substantially perpendicular to one another. .
- This set of two crossed plates (110, 112) is itself mounted movable relative to a fixed support frame (114) integral with the frame of the shock wave generating apparatus, each of these two plates (110, 112 ) comprises an axial orifice (116, 118), for the passage of the optical beam (12b) and naturally of the optical axis (104) materialized by the radiation (52).
- the plate (112) mounted on the frame (114) is mounted movable horizontally, perpendicular to the optical axis (104) while the plate (110) is mounted on the plate (112) so as to be vertically movable , perpendicular to the optical axis (104) and the horizontal direction of movement of the stage (112), in order to allow movement in the whole plane perpendicular to the optical axis (104), and this in an extremely precise manner thanks to the micrometric screws such as the screw (120).
- On the second plate (110) is secured a member (122) for receiving a support member (124) proper of the optical fiber (42).
- the receiving member (122) therefore comprises a housing (126), for example substantially cylindrical, for receiving the support member (124) comprising a flared disc-shaped front part (128) serving for the precise positioning of the support member (124) in the receiving member (122).
- the support member (124) is provided at its front part with a substantially cylindrical sleeve (130) integral with the cylindrical disc, provided with a central orifice (132) through having an axial narrowing (134) of suitable diameter to allow the optical fiber (42) to pass, substantially without play.
- this narrowing (134) is close to the free end (130a) of the sleeve (130), intended to be located on the receiving side of the optical radiation, as is clearly understandable from the consideration of FIG. 3.
- the central orifice (132) is coaxial with a orifice (136), central, passing through the organ support (124), to allow free passage to the optical fiber (42).
- a nozzle (140) comprising an axial orifice (142) passing through and being inserted into a corresponding housing ( 144) constituting a widening of the through orifice (136).
- the optical fiber (42) can be secured in the endpiece (140) by any securing means, such as by bonding, once the optical fiber is correctly positioned in the support member (124).
- the optical fiber (42) which is preferably a standard type optical fiber, for example with a diameter of 200 microns
- the optical fiber is introduced into the support member (124) while a wedge in the form of a disc of predetermined thickness has been introduced into the central part (132b) of the orifice (132) opening at the end (130a) of the sleeve (130), so that the optical fiber (42) comes in abutment against this wedge exactly at the point intended to coincide with the focal point (102).
- the optical fiber (42) is secured to the end piece (140), then the shim is removed.
- the support member (124) is placed in the receiving member (122), then the end (42a) of the optical fiber (42) is brought exactly to the focal point (102).
- the positioning of the focal point (102) can be adjusted, thanks to the fact that the focusing means (100), advantageously comprising a focusing lens (101), are mounted on a lens system (160) including the lens (101), for translating the position of the focal point (102) on the optical axis (104).
- this lens system comprises an external member (162), for translational movement control, preferably without rotation, of an internal member (164) supporting the focusing means (100).
- the external member (160) comprises a thread (166) meshing with a corresponding thread (168) of the internal member (164).
- the external member (162) and the internal member (164) comprise through orifices (170, 172) for the free passage of the optical radiation (12b) and also of the optical axis (104).
- the external member (162) when the external member (162) is rotated, it causes only a translater of the internal member (164) without causing it to rotate.
- the internal member (164) there is provided in the internal member (164) at least one longitudinal slit (176), of predetermined length to fix the location of the displacement of the focal point (102).
- a finger (178, 180) is released, dispensed in an annular groove of the external member (162), and secured to an annular part (182) comprising a radia shoulder. (182a) come into place inside a part (184) mounted on the frame (114), which is also fixed, like the frame (114).
- this rotation is guided by the part (182) and, thanks to the cooperating threads (166, 168), an advancement by translation of the external member (164) is obtained. so as to translate the focal point (102) on the optical axis (104).
- a self-draining system is obtained by predicting the dye circuit, as shown in FIG. 2.
- the transfer device as shown in Figure 3 is an integral part of the invention, as well as the dye circuit shown in Figure 2. The same is true of the circuit of Figure 1.
- control means (200) comprise for example a photodiode (202), which provides a peak (204) of intensity measured during a pulse of the optical radiation emitted by the laser (10). The surface of this peak (204) is integrated and constitutes a measure of the intensity of the radiation (12) emitted by the laser device (10).
- This measured value is compared with a reference value, and when this measured intensity value is less than the reference value, a conventional servo device makes it possible to increase the power supply of the flash tube (22) to increase the power of the laser (10). It is thus possible to emit an intensity of optical radiation which is substantially constant over time.
- the device (200) for measuring the intensity of the light radiation makes it possible to control the power of the laser to provide optical radiation of substantially constant intensity over time.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR88/07251 | 1988-05-31 | ||
FR8807251A FR2632075A1 (fr) | 1988-05-31 | 1988-05-31 | Dispositif de transfert d'un rayon ou faisceau optique emis par un laser sur une fibre optique, et appareil de generation d'ondes de choc pour la destruction de cibles, notamment des tissus, des lithiases ou concretions, pourvu d'un tel dispositif |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1989012244A2 true WO1989012244A2 (fr) | 1989-12-14 |
WO1989012244A3 WO1989012244A3 (fr) | 1990-01-25 |
Family
ID=9366795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1989/000261 WO1989012244A2 (fr) | 1988-05-31 | 1989-05-30 | Dispositif de transfert de rayonnement du laser sur une fibre optique |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0449829A1 (fr) |
JP (1) | JPH04500563A (fr) |
FR (1) | FR2632075A1 (fr) |
IL (1) | IL90450A0 (fr) |
WO (1) | WO1989012244A2 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991019216A1 (fr) * | 1990-05-30 | 1991-12-12 | Erich Weimel | Dispositif pour l'introduction de rayons lumineux dans une fibre optique |
EP0505486A1 (fr) * | 1989-12-11 | 1992-09-30 | COSMESCU, Ioan | Montage de laparoscope a laser et procede s'y rapportant |
FR2679389A1 (fr) * | 1991-07-17 | 1993-01-22 | Technomed Int Sa | Procede et appareil de regeneration de colorant incluant la preparation de concentre de colorant. |
EP0708347A1 (fr) * | 1994-10-21 | 1996-04-24 | Hewlett-Packard GmbH | Dispositif d'ajustage, dispositif d'atténuation, dispositif de couplage et dispositif de filtrage |
US5802229A (en) * | 1995-10-31 | 1998-09-01 | Indigo, Medical, Inc. | Fiber optic radiation transmisson system connector for an optical fiber and methods of usine same |
DE10006614A1 (de) * | 2000-02-15 | 2001-08-23 | Tui Laser Ag | Kopplungsvorrichtung |
EP1925975A1 (fr) * | 2006-01-20 | 2008-05-28 | Sumitomo Electric Industries, Ltd. | Dispositif a source de lumiere |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1014604B1 (fr) * | 1998-12-22 | 2005-06-22 | Contraves Space Ag | Procédé et appareil pour la production d'un signal d'erreur en cas de réception hétérodyne cohérente des ondes lumineuses |
JP2007193230A (ja) * | 2006-01-20 | 2007-08-02 | Sumitomo Electric Ind Ltd | 光源装置 |
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CH611429A5 (en) * | 1976-11-18 | 1979-05-31 | France Etat | Device for connecting a laser diode to an optical fibre |
DE2832847A1 (de) * | 1978-07-26 | 1980-02-14 | Sigma Instr Gmbh | Kontroll- und sicherheitseinrichtung fuer ein laser-medizinisches geraet |
US4364015A (en) * | 1981-03-12 | 1982-12-14 | Jersey Nuclear-Avco Isotopes, Inc. | Compact reservoir system for dye lasers |
EP0094269A1 (fr) * | 1982-04-22 | 1983-11-16 | Synthelabo | Dispositif propre à la mise en oeuvre d'une solution dégradable d'un quelconque produit, par exemple d'un absorbant saturable, en particulier pour laser |
DE3323653A1 (de) * | 1983-05-11 | 1984-11-15 | Institut für Nachrichtentechnik, DDR 1160 Berlin | Justierbare, mikrooptische koppelvorrichtung fuer lichtleiter |
JPS61208285A (ja) * | 1985-03-13 | 1986-09-16 | Ishikawajima Harima Heavy Ind Co Ltd | 色素レ−ザ装置の色素液交換装置 |
WO1986006269A1 (fr) * | 1985-04-24 | 1986-11-06 | Candela Corporation | Utilisation de lasers pour la destruction d'objets |
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-
1988
- 1988-05-31 FR FR8807251A patent/FR2632075A1/fr active Pending
-
1989
- 1989-05-29 IL IL90450A patent/IL90450A0/xx unknown
- 1989-05-30 JP JP1506542A patent/JPH04500563A/ja active Pending
- 1989-05-30 WO PCT/FR1989/000261 patent/WO1989012244A2/fr not_active Application Discontinuation
- 1989-05-30 EP EP89906787A patent/EP0449829A1/fr not_active Withdrawn
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CH611429A5 (en) * | 1976-11-18 | 1979-05-31 | France Etat | Device for connecting a laser diode to an optical fibre |
DE2832847A1 (de) * | 1978-07-26 | 1980-02-14 | Sigma Instr Gmbh | Kontroll- und sicherheitseinrichtung fuer ein laser-medizinisches geraet |
US4364015A (en) * | 1981-03-12 | 1982-12-14 | Jersey Nuclear-Avco Isotopes, Inc. | Compact reservoir system for dye lasers |
EP0094269A1 (fr) * | 1982-04-22 | 1983-11-16 | Synthelabo | Dispositif propre à la mise en oeuvre d'une solution dégradable d'un quelconque produit, par exemple d'un absorbant saturable, en particulier pour laser |
DE3323653A1 (de) * | 1983-05-11 | 1984-11-15 | Institut für Nachrichtentechnik, DDR 1160 Berlin | Justierbare, mikrooptische koppelvorrichtung fuer lichtleiter |
JPS61208285A (ja) * | 1985-03-13 | 1986-09-16 | Ishikawajima Harima Heavy Ind Co Ltd | 色素レ−ザ装置の色素液交換装置 |
WO1986006269A1 (fr) * | 1985-04-24 | 1986-11-06 | Candela Corporation | Utilisation de lasers pour la destruction d'objets |
US4652095A (en) * | 1985-09-26 | 1987-03-24 | George Mauro | Optical component positioning stage |
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Title |
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Biomedical Research, Development, and Engineering, 8 Mai 1980, The Johns Hopkins University, A.B. FRASER et al.: "Pulsed Laser Iridomoty Apparatus". * |
Journal of Physics D: Applied Physics, Vol. 7, 1974 (GB), H. BRINKSCHULTE et al.: "A Repetitively Pulsed Q-Switched, Inorganic Liquid Laser", pages 1361-1368 * |
PATENT ABSTRACTS OF JAPAN, Vol. 11, No. 41 (E-478) (2488), 6 Fevrier 1987; & JP-A-61208285 (Ishikawajima Harima Heavy Ind. Co. Ltd) 16 Septembre 1986 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0505486A1 (fr) * | 1989-12-11 | 1992-09-30 | COSMESCU, Ioan | Montage de laparoscope a laser et procede s'y rapportant |
EP0505486A4 (en) * | 1989-12-11 | 1993-11-10 | Ioan Cosmescu | Laser laparoscope assembly and method therefor |
WO1991019216A1 (fr) * | 1990-05-30 | 1991-12-12 | Erich Weimel | Dispositif pour l'introduction de rayons lumineux dans une fibre optique |
FR2679389A1 (fr) * | 1991-07-17 | 1993-01-22 | Technomed Int Sa | Procede et appareil de regeneration de colorant incluant la preparation de concentre de colorant. |
EP0708347A1 (fr) * | 1994-10-21 | 1996-04-24 | Hewlett-Packard GmbH | Dispositif d'ajustage, dispositif d'atténuation, dispositif de couplage et dispositif de filtrage |
US5673348A (en) * | 1994-10-21 | 1997-09-30 | Hewlett-Packard Company | Apparatus for adjustment, attenuating device, coupling device and filtering device |
US5802229A (en) * | 1995-10-31 | 1998-09-01 | Indigo, Medical, Inc. | Fiber optic radiation transmisson system connector for an optical fiber and methods of usine same |
US5848209A (en) * | 1995-10-31 | 1998-12-08 | Indigo Medical Inc. | Connection apparatus with optical fiber coding and detection means or with radiation emitter |
US5875275A (en) * | 1995-10-31 | 1999-02-23 | Indigo Medical, Inc. | Methods of connecting an optical fiber and methods of providing radiation from an optical fiber |
DE10006614A1 (de) * | 2000-02-15 | 2001-08-23 | Tui Laser Ag | Kopplungsvorrichtung |
DE10006614C2 (de) * | 2000-02-15 | 2002-02-14 | Tui Laser Ag | Kopplungsvorrichtung |
EP1925975A1 (fr) * | 2006-01-20 | 2008-05-28 | Sumitomo Electric Industries, Ltd. | Dispositif a source de lumiere |
EP1925975A4 (fr) * | 2006-01-20 | 2010-04-28 | Sumitomo Electric Industries | Dispositif a source de lumiere |
Also Published As
Publication number | Publication date |
---|---|
IL90450A0 (en) | 1990-01-18 |
WO1989012244A3 (fr) | 1990-01-25 |
JPH04500563A (ja) | 1992-01-30 |
FR2632075A1 (fr) | 1989-12-01 |
EP0449829A1 (fr) | 1991-10-09 |
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