WO2005070317A1 - Handpiece for surgical diode laser application by means of fibre optic - Google Patents

Handpiece for surgical diode laser application by means of fibre optic Download PDF

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Publication number
WO2005070317A1
WO2005070317A1 PCT/ES2004/000032 ES2004000032W WO2005070317A1 WO 2005070317 A1 WO2005070317 A1 WO 2005070317A1 ES 2004000032 W ES2004000032 W ES 2004000032W WO 2005070317 A1 WO2005070317 A1 WO 2005070317A1
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WO
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Prior art keywords
handpiece
surgical
application
diode laser
optical fiber
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PCT/ES2004/000032
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Spanish (es)
French (fr)
Inventor
Francisco Javier Arcusa Villacampa
Mailin Auxiliadora Franco Lissott
Original Assignee
Arcusa Villacampa Francisco Ja
Franco Lissott Mailin Auxiliad
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Application filed by Arcusa Villacampa Francisco Ja, Franco Lissott Mailin Auxiliad filed Critical Arcusa Villacampa Francisco Ja
Priority to PCT/ES2004/000032 priority Critical patent/WO2005070317A1/en
Publication of WO2005070317A1 publication Critical patent/WO2005070317A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20Surgical 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
    • A61B18/22Surgical 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/0046Dental lasers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00029Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002Irrigation

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

Abstract

The invention relates to a handpiece for surgical diode laser application by means of fibre optic. The inventive handpiece consists of an essentially-tubular body which is designed such that the fibre optic can pass therethrough, said body comprising a grip area and an application area. The handpiece also comprises integrated irrigation means which are intended to supply liquid simultaneously with the emission of the laser. The aforementioned irrigation means comprise a reduced-length tubular conduit in the grip area of the handpiece, which is designed to be connected to a liquid supply conduit. The invention ensures maximum effectiveness in oral and maxillofacial surgery owing to the simultaneous irrigation and laser emission, which prevents carbonisation and enables rapid tissue cooling, thereby facilitating the work of the operator.

Description

PIEZA DE MANO PARA TRATAMIENTOS MÉDICO-QUIRÚRGICOS CON LÁSER DE DIODO POR MEDIO DE FIBRA ÓPTICA HANDPIECE FOR MEDICAL-SURGICAL TREATMENTS WITH DIODE LASER THROUGH FIBER OPTICS
Para tratamientos sobre tejidos, la fibra óptica se aplica típicamente a través de unas piezas de mano adaptadas para diferentes especialidades. Dichas piezas de mano están constituidas por un cuerpo substancialmente tubular el cual está adaptado para el paso de la fibra óptica por el interior del mismo. El cuerpo substancialmente tubular de la pieza de mano está formado por una zona de agarre, de mayor diámetro, y una zona de aplicación, de menor diámetro. Por el extremo libre de la citada zona de aplicación asoma el extremo de aplicación de la fibra óptica. El uso de la fibra óptica en tratamientos quirúrgicos mínimamente invasivos ha demostrado ser muy eficaz ya que permiten obtener una elevada penetración en el tejido y una óptima coagulación. Sin embargo, en numerosas aplicaciones, por ejemplo en cirugía oral o maxilofacial, es necesario a menudo combinar la aplicación de láser con el suministro de líquido, por ejemplo agua, con fines de refrigeración y para disminuir la agresión provocada al tejido circundante (menor carbonización del tejido) 'En el estado de la técnica, esto se ha venido solucionando mediante la utilización de medios de suministro de líquido. Estos medios de suministro de líquido comprenden un conducto de suministro que aplica el líquido a la zona que se está tratando con el láser de manera simultánea. Este modo de operación resulta muy engorroso y poco práctico dado que es necesario utilizar la pieza de mano y simultáneamente manipular dicho conducto de suministro de líquido para orientarlo hacia la zona a tratar. Esto hace que normalmente sea necesaria la intervención de personal adicional para manipular dichos medios de suministro de líquido. La invención propone una solución alternativa a las piezas de mano que para el mismo fin se vienen utilizando en la actualidad con la cual es posible simplificar enormemente el proceso de intervención quirúrgica por láser. Para ello se propone, de acuerdo con la presente invención, una nueva pieza de mano la cual presenta la particularidad de que incorpora medios de irrigación integrados en la misma con los cuales se suministra líquido hacia la zona a tratar de manera simultánea a la emisión del láser. Es decir, con un único instrumento es posible aplicar líquido a la zona a tratar a la vez que se está aplicando el láser. Esto reduce el personal que interviene en el tratamiento a la vez que la persona que manipula la pieza de mano solamente tiene que centrar su atención en la manipulación de láser sobre la zona que está tratando. De acuerdo con la invención, los citados medios de irrigación integrados en la pieza de mano de la invención, preferiblemente en la zona de agarre de la misma, incluyen un conducto tubular de longitud reducida. Este conducto de entrada de líquido está adaptado convenientemente para el acoplamiento de un conducto de suministro de líquido, el cual proviene de una fuente de líquido dispuesta a tal efecto. Se prevé que dicho conducto tubular de longitud reducida presente un extremo de conexión al conducto de suministro de líquido dotado de una serie de resaltes circunferenciales para retener en posición el conducto de suministro de líquido. El cuerpo de la pieza está fabricado en duraluminio de alta calidad, si bien se comprenderá que la invención no queda en absoluto limitada a éste, pudiéndose utilizar otros materiales ligeros apropiados. El diseño de la pieza de mano de la invención puede ser tal que presente una configuración general recta o curva. La pieza, que presenta una forma ergonómica para facilitar su uso, está preparada convenientemente para el autoclave y está imantada para una mayor comodidad en el trabajo. La pieza de mano con medios de irrigación integrados de la presente invención supone un instrumento de máxima eficacia en cirugía oral y maxilofacial. La irrigación simultánea a la emisión del láser es una ventaja importante, ya que permite la ausencia absoluta de carbonización así como un rápido enfriamiento del tejido, facilitando el trabajo al operador. La fibra óptica que se utiliza para las aplicaciones a las cuales está destinada la pieza de mano de la invención son fibras ópticas altamente flexibles y fibras de baja apertura numérica para un buen corte. A partir de la descripción detallada de una realización preferida de una pieza de mano para la aplicación de láser de diodo quirúrgico por medio de fibra óptica de acuerdo con la presente invención resultarán claras las características y las ventajas de la misma. Dicha descripción se dará, de aquí en adelante, a modo de ejemplo no limitativo, con referencia a los dibujos que se ajuntan en la presente memoria. En dichos dibujos: La figura n° 1 es una vista en alzado de un ejemplo de realización de una pieza de mano de acuerdo con la invención, la cual incorpora una cánula recta; La figura n° 2 es una vista en sección longitudinal de la pieza de mano ilustrada en la figura n°For tissue treatments, fiber optics is typically applied through handpieces adapted for different specialties. Said handpieces are made up of a substantially tubular body which is adapted for the passage of the optical fiber inside it. The substantially tubular body of the handpiece is formed by a gripping area, of larger diameter, and an application area, of smaller diameter. At the free end of said application area, the application end of the optical fiber appears. The use of fiber optics in minimally invasive surgical treatments has proven to be very effective since they allow high tissue penetration and optimal coagulation. However, in many applications, for example in oral or maxillofacial surgery, it is often necessary to combine the application of laser with the supply of liquid, for example water, for cooling purposes and to decrease the aggression caused to the surrounding tissue (less carbonization tissue) ' In the state of the art, this has been solved by using liquid supply means. These liquid supply means comprise a supply conduit that applies the liquid to the area being treated with the laser simultaneously. This mode of operation is very cumbersome and impractical since it is necessary to use the handpiece and simultaneously manipulate said liquid supply duct to orient it towards the area to be treated. This normally requires the intervention of additional personnel to manipulate said liquid supply means. The invention proposes an alternative solution to handpieces that are currently being used for the same purpose with which it is possible to greatly simplify the process of laser surgical intervention. For this purpose, according to the present invention, a new handpiece is proposed which has the particularity that it incorporates integrated irrigation means in which liquid is supplied to the area to be treated simultaneously with the emission of the To be. In other words, with a single instrument it is possible to apply liquid to the area to be treated at the same time that the laser is being applied. This reduces the personnel involved in the treatment while the person who manipulates the handpiece only has to focus his attention on the laser manipulation on the area he is treating. According to the invention, said irrigation means integrated into the handpiece of the invention, preferably in the grip area thereof, include a tubular conduit of reduced length. This liquid inlet conduit is conveniently adapted for coupling a liquid supply conduit, which comes from a liquid source arranged for this purpose. It is envisaged that said tubular conduit of reduced length has an end of connection to the liquid supply conduit provided with a series of circumferential projections to hold the liquid supply conduit in place. The body of the part is made of high quality duralumin, although it will be understood that the invention is not limited to it at all, and other appropriate light materials can be used. The design of the handpiece of the invention may be such that it has a general straight or curved configuration. The piece, which has an ergonomic shape to facilitate its use, is Conveniently autoclaved and magnetized for added convenience on the job. The handpiece with integrated irrigation means of the present invention is an instrument of maximum efficiency in oral and maxillofacial surgery. Irrigation simultaneously with the laser emission is an important advantage, since it allows the absolute absence of carbonization as well as a rapid cooling of the tissue, making the operator's job easier. The optical fiber used for the applications for which the handpiece of the invention is intended are highly flexible optical fibers and low numerical aperture fibers for good cutting. From the detailed description of a preferred embodiment of a handpiece for the application of surgical diode laser by means of fiber optics according to the present invention, the characteristics and advantages thereof will become clear. Said description will be given, hereinafter, by way of non-limiting example, with reference to the drawings attached hereto. In said drawings: Figure 1 is an elevation view of an embodiment example of a handpiece according to the invention, which incorporates a straight cannula; Fig. 2 is a longitudinal sectional view of the handpiece illustrated in Fig.
1; La figura n° 3 es una vista en alzado de un ejemplo alternativo de cánula aplicable a la boquilla de la pieza de mano la cual presenta configuración curva; y La figura n° 4 es una vista ampliada en alzado de la zona entrada de líquido a la pieza. Se relacionan a continuación las distintas referencias que se han utilizado para describir la realización preferida de la pieza de mano dispositivo de la presente invención: (1 pieza de mano; (2 fibra óptica; (3 zona de agarre; (4 zona de aplicación; (5 primer extremo de la zona de agarre; (6 tapón roscado; segundo extremo de la zona de agarre; boquilla; (9 cánula; (10) medios de irrigación integrados en la pieza; (11) conducto tubular de longitud reducida; (lia) primer tramo del conducto tubular; (11b) segundo tramo del conducto tubular; (12) orificio interior de la zona de agarre; (13) zona ensanchada; (14) extremo libre del segundo tramo del conducto tubular; (15) resaltes circunferenciales; y (16) conducto de suministro de líquido.1; Figure 3 is an elevation view of an alternative example of a cannula applicable to the nozzle of the handpiece which has a curved configuration; and Figure 4 is an enlarged elevation view of the liquid inlet area to the part. The different references that have been used to describe the preferred embodiment of the device handpiece are listed below. present invention: (1 handpiece; (2 fiber optics; (3 grip zone; (4 application zone; (5 first end of the grip zone; (6 screw cap; second end of the grip zone; nozzle ; (9 cannula; (10) irrigation means integrated in the piece; (11) tubular duct of reduced length; (lia) first section of the tubular duct; (11b) second section of the tubular duct; (12) internal hole of the grip area; (13) widened area; (14) free end of the second section of the tubular conduit; (15) circumferential projections; and (16) liquid supply conduit.
El ejemplo ilustrado en las figuras, y que se describe a continuación, se refiere a una pieza de mano la cual ha sido designada en conjunto por (1) en las figuras. La pieza de mano (1) está diseñada para la aplicación de láser de diodo quirúrgico por medio de fibra óptica altamente flexible con núcleos de diámetros desde 400μm hasta lOOOμm y fibras de baja apertura numérica para un buen corte. La pieza de mano (1) que se ilustra a modo de ejemplo no limitativo en las figuras que se adjuntan comprende un cuerpo substancialmente tubular adaptado para el paso por el interior del mismo de la fibra óptica (2) . El cuerpo substancialmente tubular de la pieza de mano (1) está formado por una zona de agarre (3) y una zona de aplicación (4) . La zona de agarre (3) está fabricada en aluminio anodizado y presenta un diseño ergonómico para poder ser agarrado por el operador de una manera cómoda. Dicha zona de agarre (3) presenta un primer extremo (5) por donde se introduce la fibra óptica (2) el cual está provisto de un tapón roscado (6) . El tapón roscado (6) se aloja en el interior del primer extremo (5) de la zona de agarre (3) de la pieza de mano (1) . Al roscar el tapón (6) en dicho primer extremo (5) de la pieza (1) la fibra óptica (2) queda atrapada de manera que se impide su desplazamiento axial relativo en el interior de la pieza (1) . La fijación de la fibra óptica (2) mediante el roscado del tapón (6) se realiza una vez que la fibra óptica (2) ha atravesado todo el cuerpo de la pieza (1) y sobresale ligeramente por el extremo de la zona de aplicación (4) . La zona de agarre (3) de la pieza de mano (1) presenta un segundo extremo (7) donde se acopla una boquilla (8) . La boquilla (8) tiene la misión de alojar una cánula (9) que es la que define la citada zona de aplicación (4) de la pieza de mano (1) . La cánula (9) puede presentar cualquier configuración adecuada: puede ser recta como en las figuras n° 1 y 2 o bien puede presentar una configuración curvada, tal como se ha mostrado en la figura n° 3. En cualquier caso, la cánula (9) está adaptada para permitir el paso por su interior de la fibra óptica (2) . La pieza de mano (1) que se ilustra en las figuras está provista de medios de irrigación (10) integrados en la misma. Dichos medios de irrigación (10) tienen la función de suministrar líquido (por ejemplo agua) de manera simultánea a la emisión del láser de la fibra óptica (2), sobre la zona a tratar. Los medios de irrigación (10) se disponen en la zona de agarre de la pieza (1) . En particular, dichos medios (10) están formados por una entrada de líquido definida por un conducto tubular (11) de longitud reducida. El conducto (11) presenta un primer tramo (lia) alojado por roscado en un orificio interior (12) de la zona de agarre (3) de la pieza de mano (1) . El citado orificio interior (12) está formado en una zona ensanchada (13) de la citada zona de agarre (3) de la pieza de mano (1) y forma un ángulo con el eje longitudinal de la pieza (1) . El primer tramo (lia) del conducto (11) se prolonga en un segundo tramo (11b) formando un ángulo con el primero (lia) , de manera que dicho segundo tramo (11b) del conducto (11) es substancialmente paralelo al eje longitudinal de la pieza (1) . Como puede apreciarse, el extremo libre (14) de dicho segundo tramo (11b) del conducto (11) presenta una serie de resaltes circunferenciales (15) destinados a retener en posición al conducto de suministro de líquido (16). La configuración de la pieza de mano (1) ilustrada en la figura n° 1 permite obtener un instrumento de máxima eficacia en intervenciones tales como, por ejemplo, cirugía oral y maxilofacial. Los medios de irrigación (10) funcionando de manera simultánea a la emisión del láser evita la carbonización del tejido y proporciona un rápido enfriamiento del mismo. Descrito suficientemente en qué consiste la pieza de mano (1) para la aplicación de láser de diodo quirúrgico por medio de fibra óptica de la presente invención en correspondencia con los dibujos adjuntos, se comprenderá que podrán introducirse en el mismo cualquier modificación de detalle que se estime conveniente, siempre y cuando las características esenciales de la invención resumidas en las siguientes reivindicaciones no sean alteradas. The example illustrated in the figures, and described below, refers to a handpiece which has been designated as a whole by (1) in the figures. The handpiece (1) is designed for the application of surgical diode laser by means of highly flexible optical fiber with cores with diameters from 400μm to lOOOμm and low numerical aperture fibers for a good cut. The handpiece (1) illustrated by way of non-limiting example in the attached figures comprises a substantially tubular body adapted for the passage through the interior of the optical fiber (2). The substantially tubular body of the handpiece (1) is formed by a grip zone (3) and a zone application (4). The grip area (3) is made of anodized aluminum and has an ergonomic design to be able to be grasped by the operator in a comfortable way. Said gripping area (3) has a first end (5) through which the optical fiber (2) is introduced, which is provided with a threaded plug (6). The threaded plug (6) is housed inside the first end (5) of the grip zone (3) of the handpiece (1). By threading the plug (6) at said first end (5) of part (1), the optical fiber (2) is trapped in such a way that its relative axial displacement inside part (1) is prevented. The fixing of the optical fiber (2) by means of the threading of the plug (6) is carried out once the optical fiber (2) has passed through the entire body of the part (1) and protrudes slightly from the end of the application area. (4) . The gripping area (3) of the handpiece (1) has a second end (7) where a nozzle (8) is attached. The nozzle (8) has the mission of accommodating a cannula (9) which is the one that defines the said area of application (4) of the handpiece (1). The cannula (9) can have any suitable configuration: it can be straight as in Figures 1 and 2 or it can have a curved configuration, as shown in Figure 3. In any case, the cannula ( 9) is adapted to allow the optical fiber (2) to pass through it. The handpiece (1) illustrated in the figures is provided with irrigation means (10) integrated therein. Said irrigation means (10) have the function of supplying liquid (for example water) simultaneously with the emission of the laser from the optical fiber (2), over the area to be treated. The irrigation means (10) are arranged in the gripping area of the piece (1). In particular, said means (10) are formed by a liquid inlet defined by a tubular conduit (11) of reduced length. The duct (11) has a first section (lia) housed by threading in an internal hole (12) of the grip area (3) of the handpiece (1). Said interior hole (12) is formed in a widened area (13) of said gripping area (3) of the handpiece (1) and forms an angle with the longitudinal axis of the piece (1). The first section (lia) of the duct (11) extends into a second section (11b) forming an angle with the first (lia), so that said second section (11b) of the duct (11) is substantially parallel to the longitudinal axis of the piece (1). As can be seen, the free end (14) of said second section (11b) of the duct (11) presents a series of circumferential projections (15) intended to retain the liquid supply duct (16) in position. The configuration of the handpiece (1) illustrated in figure n ° 1 allows obtaining an instrument of maximum efficiency in interventions such as, for example, oral and maxillofacial surgery. The irrigation means (10) operating simultaneously with the emission of the laser prevents charring of the tissue and provides rapid cooling thereof. Described sufficiently in what the handpiece (1) for the application of surgical diode laser by means of fiber optics of the present invention consists in correspondence with the attached drawings, it will be understood that any modification of detail that may be introduced may be made therein. deems it convenient, as long as the essential characteristics of the invention summarized in the following claims are not altered.

Claims

R E I V I N D I C A C I O N E S: 1- Pieza de mano (1) para la aplicación de láser de diodo quirúrgico por medio de fibra óptica, que comprende un cuerpo substancialmente tubular adaptado para el paso por el interior del mismo de fibra óptica (2) , estando formado dicho cuerpo substancialmente tubular por una zona de agarre (3) y una zona de aplicación (4), caracterizada en que comprende, además, medios de irrigación integrados (10) destinados al suministro de líquido de manera simultánea a la emisión del láser. 2- Pieza de mano (1) para la aplicación de láser de diodo quirúrgico por medio de fibra óptica según la reivindicación 1, caracterizada en que dichos medios de irrigación integrados (10) comprenden conducto tubular (11) de longitud reducida formado en el cuerpo de la pieza y está adaptado para acoplar un conducto de suministro de líquido (16) . 3- Pieza de mano (1) para la aplicación de láser de diodo quirúrgico por medio de fibra óptica según cualquiera de las reivindicaciones 1 o 2, caracterizada en que el citado conducto tubular (11) está formado en la citada zona de agarre (3) del cuerpo de la pieza (1) . 4- Pieza de mano (1) para la aplicación de láser de diodo quirúrgico por medio de fibra óptica según cualquiera de las reivindicaciones anteriores, caracterizada en que el citado conducto tubular (11) presenta un extremo libre (14) para la conexión a dicho conducto de suministro de líquido (16) , presentando el citado extremo libre (14) una serie de resaltes circunferenciales (15) destinados a retener en posición dicho conducto de suministro de líquido (16) . CLAIMS: 1- Handpiece (1) for the application of surgical diode laser by means of optical fiber, comprising a substantially tubular body adapted for the passage through the interior of optical fiber (2), said body being formed substantially tubular by a grip zone (3) and an application zone (4), characterized in that it also includes integrated irrigation means (10) intended for the supply of liquid simultaneously with the laser emission. 2- Handpiece (1) for the application of surgical diode laser by means of optical fiber according to claim 1, characterized in that said integrated irrigation means (10) comprise tubular conduit (11) of reduced length formed in the body of the piece and is adapted to couple a liquid supply conduit (16). 3- Handpiece (1) for the application of surgical diode laser by means of optical fiber according to any of claims 1 or 2, characterized in that said tubular conduit (11) is formed in said gripping area (3 ) of the body of the piece (1). 4- Handpiece (1) for the application of surgical diode laser by means of optical fiber according to any of the preceding claims, characterized in that said tubular conduit (11) has a free end (14) for connection to said liquid supply conduit (16), said free end (14) having a series of circumferential projections (15) intended to hold said liquid supply conduit (16) in position.
PCT/ES2004/000032 2004-01-27 2004-01-27 Handpiece for surgical diode laser application by means of fibre optic WO2005070317A1 (en)

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WO2010133712A1 (en) * 2009-05-22 2010-11-25 Intermedic Arfran, S.A. Fibre optic cable modified at one of the ends thereof provided with means for ventilation of said ends
CN107427335A (en) * 2015-03-04 2017-12-01 西诺德牙科设备有限公司 For treating the dental lasers of soft tissue

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CN107427335A (en) * 2015-03-04 2017-12-01 西诺德牙科设备有限公司 For treating the dental lasers of soft tissue

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