WO2010018266A1 - Improved rapid palatal expansion screw - Google Patents

Improved rapid palatal expansion screw Download PDF

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Publication number
WO2010018266A1
WO2010018266A1 PCT/ES2009/000415 ES2009000415W WO2010018266A1 WO 2010018266 A1 WO2010018266 A1 WO 2010018266A1 ES 2009000415 W ES2009000415 W ES 2009000415W WO 2010018266 A1 WO2010018266 A1 WO 2010018266A1
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WO
WIPO (PCT)
Prior art keywords
screw
segments
perfected
paladino
expansor
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Application number
PCT/ES2009/000415
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Spanish (es)
French (fr)
Inventor
Ricardo Cacho Casado
Original Assignee
Ricardo Cacho Casado
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Publication date
Application filed by Ricardo Cacho Casado filed Critical Ricardo Cacho Casado
Publication of WO2010018266A1 publication Critical patent/WO2010018266A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/10Devices having means to apply outwardly directed force, e.g. expanders

Definitions

  • the invention refers to a perfected rapid paladin expander screw, which contributes to the function to which several advantages and innovative features are intended, which will be described in detail below, which assume a remarkable improvement compared to what is already known for the same purpose.
  • the object of the invention focuses on a hygienic expander screw, of the type intended for orthopedic treatments of maxillary disjunction based on the separation of the middle palladine suture, which has the peculiarity of having an innovative structural configuration that, adjusting to all types of palates, it allows to achieve a rapid increase in the length of the dental arch of up to 15 mm with a single screw, that is, without the need to change the screw.
  • the field of application of the present invention is within the sector of dentistry in general, and particularly in that of orthodontics or oral orthopedics.
  • This orthopedic expansion is a practice that has been carried out for many years, but it was Angle who in 1860 described this treatment as a disjunction of the palatal suture, which achieves the mechanically forced expansion of the maxilla.
  • a smaller expansion screw for example, 9mm
  • the branches of the screw are subject to bands of 15 premolars and molars and are nailed to the palate, causing ulcerations and wounds to the patient who carries it .
  • the expander screw that the present invention proposes is configured as a remarkable novelty within its field of application, since, according to its creation, the aforementioned objectives are achieved as suitable, that is, a screw with which prevents the placement of two screws of different sizes in the same treatment, since it reaches an expansion of up to 15mrn, a screw that can be adjusted to all types of palates, since its structural configuration can be cylindrical or ogival, as required by the patient , the characterizing details that distinguish it and that make it possible, adequately included in the final claims accompanying the present specification.
  • the recommended screw comprises, essentially, a central axis of act of screw, to which two opposite threads and a central piece that gives it strength and stability are coupled,
  • SUBSTITUTE SHEET (RULE 26) counting on two extensible segments, each one associated with the mentioned threads, by means of respective articulated axes arranged obliquely between both elements.
  • Said axes are those that cause the opening of the assembly when the screw is activated, that is, threaded, said thread being very simple and comfortable, since the head of the same is in the front part of the same, making its handling much easier and less cumbersome for both the professional and the patient.
  • the opening of the extensible segments can be unilateral because one of its axes can act on an endless thread. In this way, a fastener and non-opening is created in one of said segments, ensuring that only the opposite axis acts on its corresponding segment, thus achieving the aforementioned unilateral expansion.
  • the aforementioned segments incorporate, at their respective ends, two anchoring branches that, conventionally, will be welded to the premolar and molar bands.
  • the new perfected fast paladino expander screw represents, therefore, an innovative structure of structural and constitutive characteristics unknown until now for such purpose, reasons that together with its practical utility, provide it with sufficient foundation to obtain the privilege of exclusivity that is requested.
  • Figure number 1 Shows a plan view of a preferred embodiment of the perfected rapid paladin expander screw object of the invention, shown in the rest state, that is, in its minimally open position, the main parts being appreciated therein. and elements of which it consists, as well as their configuration and arrangement.
  • Figure number 2.- Shows an elevation view of the screw example shown in figure 1.
  • Figure number 3 Shows a plan view of the screw in its maximum opening position, showing in it the variation in positioning that the different elements that make it up and make its operation possible.
  • the expander screw (1) in question is essentially configured from a screw (2) itself, which acts as a central axis, to whose center an elongated and flat part (3) 5 is connected, in turn , at their respective lateral ends, to identical and symmetrical segments (4).
  • anchor (6) intended for fixing the assembly, by means of its corresponding welding, to the premolar and molar bands (not shown).
  • the screw or central axis (2) 20 incorporates two threads (7), arranged, respectively, above and below said central part (3), which are articulated together, towards their respective opposite sides, to two oblique axes (8), which, in turn, at their opposite ends, are linked in an articulated manner to the described segments (4).
  • the described displacement or separation of the segments (4) can be unilateral, for which the thread (7) related to the segment (4) that it is not desired to move can be replaced by an endless thread.

Abstract

The invention relates to an improved rapid palatal expansion screw including a central shaft or screw (2) to which is coupled a part (3) which is connected at the side ends thereof to identical symmetrical segments (4) from which anchoring arms (6) extend. The screw (2) includes threaded rings (7) above and below the part (3), hinged to two inclined shafts (8) which are in turn connected at the opposite ends thereof to the segments (4). The segments (4) have a T configuration and the central part thereof connects same to the part (3) by means of a connecting part (5).

Description

TORNILLO EXPANSOR PALADINO RÁPIDO PERFECCIONADO EXPANSOR SCREW PALADINO FAST PERFECTED
D E S C R I P C I Ó ND E S C R I P C I Ó N
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La invención, tal como expresa el enunciado de la presente memoria descriptiva, se refiere a un tornillo expansor paladino rápido perfeccionado, que aporta a la función a que se destina varias ventajas e innovadoras características, que se describirán en detalle más adelante, las cuales suponen una destacable mejora frente a lo ya conocido para el mismo fin.The invention, as stated in the present specification, refers to a perfected rapid paladin expander screw, which contributes to the function to which several advantages and innovative features are intended, which will be described in detail below, which assume a remarkable improvement compared to what is already known for the same purpose.
Más en particular, el objeto de la invención se centra en un tornillo higiénico expansor, del tipo destinado a tratamientos ortopédicos de disyunción maxilar basados en la separación de la sutura paladina media, el cual presenta la particularidad de contar con una innovadora configuración estructural que, ajustándose a todo tipo de paladares, permite conseguir un rápido incremento de la longitud del arco dentario de hasta 15 mm con un único tornillo, es decir, sin necesidad de cambiar de tornillo.More particularly, the object of the invention focuses on a hygienic expander screw, of the type intended for orthopedic treatments of maxillary disjunction based on the separation of the middle palladine suture, which has the peculiarity of having an innovative structural configuration that, adjusting to all types of palates, it allows to achieve a rapid increase in the length of the dental arch of up to 15 mm with a single screw, that is, without the need to change the screw.
CAMPO DE APLICACIÓN DE LA INVENCIÓNFIELD OF APPLICATION OF THE INVENTION
El campo de aplicación de la presente invención se encuentra dentro del sector de la odontología en general, y particularmente en el de la ortodoncia u ortopedia bucal.The field of application of the present invention is within the sector of dentistry in general, and particularly in that of orthodontics or oral orthopedics.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
HOJA DE SUSTITUCIÓN (REGLA 26) Como es sabido, la disyunción maxilar rápida s un tratamiento ortopédico que se basa en la separación de la sutura palatina media, y para ello se requiere un tornillo higiénico que, a pesar de la variedad que existen, el más utilizado es el denominado Hyrax. Este procedimiento es uno de los más impresionantes en le campo de la ortodoncia.SUBSTITUTE SHEET (RULE 26) As is known, rapid maxillary disjunction is an orthopedic treatment that is based on the separation of the middle palatal suture, and for this a hygienic screw is required that, despite the variety that exists, the most commonly used is the so-called Hyrax. This procedure is one of the most impressive in the field of orthodontics.
Con dicho tratamiento se consigue un rápido incremento de la longitud del arco dentario, para aliviar las oclusiones cruzadas o invertidas posteriores del maxilar y para corregir una contracción del diámetro transversal de la arcada superior.With this treatment, a rapid increase in the length of the dental arch is achieved, to alleviate the posterior crossed or inverted occlusions of the maxilla and to correct a contraction of the transverse diameter of the upper arch.
Esta expansión ortopédica es una práctica que se realiza desde hace muchos años, pero fue Angle quien en 1860 describió este tratamiento como disyunción de la sutura palatina, que logra la expansión forzada mecánicamente del maxilar.This orthopedic expansion is a practice that has been carried out for many years, but it was Angle who in 1860 described this treatment as a disjunction of the palatal suture, which achieves the mechanically forced expansion of the maxilla.
Entre el tornillo utilizado en 1860 por Angle y el que se utiliza hoy en dia, no existe prácticamente ninguna diferencia, ya que mantienen el mismo mecanismo .Between the screw used in 1860 by Angle and the one used today, there is practically no difference, since they maintain the same mechanism.
Este tipo de tornillo, si bien se puede constatar su eficacia, presenta algunos inconvenientes, especialmente a la hora de colocarlo en determinado tipo de pacientes, especialmente los que presentan un paladar ojival.This type of screw, although its effectiveness can be verified, presents some drawbacks, especially when placing it in certain types of patients, especially those with an ogival palate.
Ello se debe, esencialmente, a que el tornillo convencional queda muy bajo, con lo cual resulta muy incómodo para el paciente, ya que le causa dificultad para deglutir, dificultad para el habla e, incluso, dificultad respiratoria.This is essentially due to the fact that the conventional screw is very low, which makes it very uncomfortable for the patient, since it causes difficulty swallowing, difficulty speaking and even breathing difficulties.
HOJA DE SUSTITUCIÓN (REGLA 26) WSUBSTITUTE SHEET (RULE 26) W
Además, a este tipo de paladares ojivales, se debe colocar un tornillo más pequeño de expansión (por ejemplo, de 9mm) cuando quizás el paciente necesite una disyunción de 12πun, por lo cual, al término de la 5 expansión de dicho tornillo, se le deberá colocar un segundo tornillo con mayor longitud, para alcanzar la expansión necesaria citada.In addition, to this type of ogival palates, a smaller expansion screw (for example, 9mm) should be placed when the patient may need a disjunction of 12πun, so, at the end of the expansion of said screw, you must place a second screw with greater length, to reach the necessary expansion mentioned.
Ello significa dos cosas: más molestias para 10 el paciente y un encarecimiento del tratamiento.This means two things: more discomfort for the patient and an increased cost of treatment.
Por otra parte, al disponer de poco espacio para colocar el tornillo, en el momento de la expansión, las ramas del mismo van sujetas a bandas de 15 premolares y molares y se clavan en el paladar, provocando ulceraciones y heridas al paciente que lo lleva.On the other hand, having little space to place the screw, at the time of expansion, the branches of the screw are subject to bands of 15 premolars and molars and are nailed to the palate, causing ulcerations and wounds to the patient who carries it .
Otro inconveniente más es que los fabricantes 20 de productos dentales deben disponer en su stock de tornillos con diferentes medidas de expansión (actualmente existen tornillos de 7mm, 9mm, llmm, 12mm, 13mm, 15mm de expansión) , con lo que supone un incremento del coste para, dichas compañías. 25Another drawback is that manufacturers 20 of dental products must have in their stock of screws with different expansion measures (there are currently 7mm, 9mm, llmm, 12mm, 13mm, 15mm expansion screws), which means an increase in cost for such companies. 25
Este tipo de tornillo, además, generalmente sólo realiza una expansión bilateral y no siempre es necesario este tipo de tratamiento, ya que existen casos que requieren una expansión unilateral. 30This type of screw, moreover, generally only performs a bilateral expansion and this type of treatment is not always necessary, since there are cases that require a unilateral expansion. 30
En casos de paladares muy ojivales, al colocar el tornillo tan bajo, aunque se consigue abrir la sutura palatina, a menudo, también se produce una inclinación de los molares no deseada. Esta inclinación 35 molar, se evitaría colocando el tornillo a tres milímetros del paladar, cosa que con los tornillosIn cases of very ogival palates, placing the screw so low, although it is possible to open the palatal suture, often, an unwanted molar inclination also occurs. This 35 molar inclination would be avoided by placing the screw three millimeters from the palate, which with the screws
HOJA DE SUSTITUCIÓN (REGLA 26) actuales no es posible.SUBSTITUTE SHEET (RULE 26) Current is not possible.
Se hace, por tanto, necesaria la creación de un nuevo tipo de tornillo que, sin perder efectividad en el tratamiento, evite los inconvenientes anteriormente descritos, siendo este el principal objetivo de la presente invención, sobre la cual cabe señalar que, por parte del solicitante, se desconoce la existencia de ningún otro que presente unas características técnicas, estructurales y de configuración semejantes, a las que presenta el que aquí se preconiza.Therefore, it is necessary to create a new type of screw that, without losing effectiveness in the treatment, avoids the drawbacks described above, this being the main objective of the present invention, on which it should be noted that, by the Applicant, the existence of any other that presents similar technical, structural and configuration characteristics is unknown, to those presented here.
EXPLICACIÓN DE LA INVENCIÓNEXPLANATION OF THE INVENTION
Así, el tornillo expansor que la presente invención propone se configura como una destacable novedad dentro de su campo de aplicación, ya que, a tenor de su creación, se consiguen los objetivos anteriormente señalados como idóneos, es decir, un tornillo con el que se evita la colocación de dos tornillos de distinto tamaño en un mismo tratamiento, ya que alcanza una expansión de hasta 15mrn, un tornillo que puede ajustarse a todo tipo de paladares, ya que su configuración estructural puede ser cilindrica u ojival, según lo requiera el paciente, estando los detalles caracterizadores que lo distinguen y que lo hacen posible, adecuadamente recogidos en las reivindicaciones finales que acompañan a la presente memoria descriptiva.Thus, the expander screw that the present invention proposes is configured as a remarkable novelty within its field of application, since, according to its creation, the aforementioned objectives are achieved as suitable, that is, a screw with which prevents the placement of two screws of different sizes in the same treatment, since it reaches an expansion of up to 15mrn, a screw that can be adjusted to all types of palates, since its structural configuration can be cylindrical or ogival, as required by the patient , the characterizing details that distinguish it and that make it possible, adequately included in the final claims accompanying the present specification.
De forma concreta, el tornillo preconizado comprende, esencialmente, un eje central de actúa de tornillo, al cual se acoplan dos roscas opuestas y una pieza central que le otorga resistencia y estabilidad,Specifically, the recommended screw comprises, essentially, a central axis of act of screw, to which two opposite threads and a central piece that gives it strength and stability are coupled,
HOJA DE SUSTITUCIÓN (REGLA 26) contando con dos segmentos extensibles, asociados cada uno de ellos a las citadas roscas, mediante respectivos ejes articulados dispuestos oblicuamente entre ambos elementos .SUBSTITUTE SHEET (RULE 26) counting on two extensible segments, each one associated with the mentioned threads, by means of respective articulated axes arranged obliquely between both elements.
Dichos ejes son los que provocan la apertura del conjunto al ser accionado el tornillo, es decir, roscado, siendo dicho roscado muy sencillo y cómodo, ya que el cabezal del mismo se encuentra en la parte anterior del mismo, haciendo que su manipulación sea mucho más fácil y menos engorrosa, tanto para el profesional como para el paciente.Said axes are those that cause the opening of the assembly when the screw is activated, that is, threaded, said thread being very simple and comfortable, since the head of the same is in the front part of the same, making its handling much easier and less cumbersome for both the professional and the patient.
Asimismo, la apertura de los segmentos extensibles puede ser unilateral debido a que uno de sus ejes puede actuar sobre una rosca sin fin. De este modo se crea una sujeción y no apertura en uno de dichos segmentos, consiguiendo que sólo el eje contrario actúe sobre su segmento correspondiente, consiguiéndose asi la citada expansión unilateral.Also, the opening of the extensible segments can be unilateral because one of its axes can act on an endless thread. In this way, a fastener and non-opening is created in one of said segments, ensuring that only the opposite axis acts on its corresponding segment, thus achieving the aforementioned unilateral expansion.
Cabe señalar que los citados segmentos incorporan en sus respectivos extremos, sendas ramas de anclaje que, convencionalmente, se soldarán a las bandas de premolares y molares.It should be noted that the aforementioned segments incorporate, at their respective ends, two anchoring branches that, conventionally, will be welded to the premolar and molar bands.
El nuevo tornillo expansor paladino rápido perfeccionado representa, por consiguiente, una estructura innovadora de características estructurales y constitutivas desconocidas hasta ahora para tal fin, razones que unidas a su utilidad práctica, la dotan de fundamento suficiente para obtener el privilegio de exclusividad que se solicita.The new perfected fast paladino expander screw represents, therefore, an innovative structure of structural and constitutive characteristics unknown until now for such purpose, reasons that together with its practical utility, provide it with sufficient foundation to obtain the privilege of exclusivity that is requested.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
HOJA DE SUSTITUCIÓN (REGLA 26) Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las caracteristicas de la invención, se acompaña a la presente memoria descriptiva, como parte integrante de la misma, de un juego de planos, en los que con carácter ilustrativo y no limitativo se ha representado lo siguiente:SUBSTITUTE SHEET (RULE 26) To complement the description that is being made and in order to help a better understanding of the features of the invention, this descriptive report is attached, as an integral part thereof, of a set of drawings, in which with character Illustrative and not limiting, the following has been represented:
La figura número 1.- Muestra una vista en planta de un ejemplo de realización preferida del tornillo expansor paladino rápido perfeccionado objeto de la invención, representada en estado de reposo, es decir, en su posición de mínima apertura, apreciándose en ella las principales partes y elementos de que consta, así como la configuración y disposición de los mismos .Figure number 1.- Shows a plan view of a preferred embodiment of the perfected rapid paladin expander screw object of the invention, shown in the rest state, that is, in its minimally open position, the main parts being appreciated therein. and elements of which it consists, as well as their configuration and arrangement.
La figura número 2.- Muestra una vista en alzado del ejemplo de tornillo mostrado en la figura 1.Figure number 2.- Shows an elevation view of the screw example shown in figure 1.
La figura número 3,- Muestra una vista en planta del tornillo en su posición de máxima apertura, apreciándose en ella la variación de posicionamiento que han sufrido los diferentes elementos que lo integran y que hacen posible su funcionamiento.Figure number 3, - Shows a plan view of the screw in its maximum opening position, showing in it the variation in positioning that the different elements that make it up and make its operation possible.
REALIZACIÓN PREFERENTE DE LA INVENCIÓNPREFERRED EMBODIMENT OF THE INVENTION
A la vista de las mencionadas figuras, y de acuerdo con la numeración adoptada, se puede observar en ellas un ejemplo de realización preferente de la invención, la cual comprende las partes y elementos que se indican y describen en detalle a continuación.In view of the aforementioned figures, and in accordance with the numbering adopted, an example of a preferred embodiment of the invention can be observed therein, which comprises the parts and elements indicated and described in detail below.
Así , tal como se aprecia en dichas figuras ,Thus, as seen in these figures,
HOJA DE SUSTITUCIÓN (REGLA 26) WSUBSTITUTE SHEET (RULE 26) W
el tornillo expansor (1) en cuestión está, esencialmente, configurado a partir de un tornillo (2) propiamente dicho, que actúa de eje central, a cuyo centro se halla acoplada una pieza alargada y plana (3) 5 vinculada, a su vez, en sus respectivos extremos laterales, a sendos segmentos (4) idénticos y simétricos .the expander screw (1) in question is essentially configured from a screw (2) itself, which acts as a central axis, to whose center an elongated and flat part (3) 5 is connected, in turn , at their respective lateral ends, to identical and symmetrical segments (4).
Estos segmentos (4) adoptan una configuraciónThese segments (4) adopt a configuration
10 plantar aproximadamente en T, siendo la parte central de la misma el extremo que los vincula a la citada pieza central (3) con la colaboración de una pieza de unión (5) , y cuentan, en los extremos de sus respectivas partes transversales, con sendas ramas de10 plant approximately in T, the central part thereof being the end that links them to said central part (3) with the collaboration of a connecting piece (5), and they have, at the ends of their respective transverse parts, with paths of
15 anclaje (6), destinadas a la fijación del conjunto, mediante su correspondiente soldadura, a las bandas de premolares y molares (no representados) .15 anchor (6), intended for fixing the assembly, by means of its corresponding welding, to the premolar and molar bands (not shown).
Por su parte, el tornillo o eje central (2) 20 incorpora sendas roscas (7), dispuestas, respectivamente, por encima y por debajo de la citada pieza (3) central, las cuales están unidas articuladamente, hacia sus respectivos lados opuestos, a dos ejes oblicuos (8), los cuales, a su vez, en sus 25 extremos opuestos, se hallan vinculados de forma articulada a los descritos segmentos (4) .On the other hand, the screw or central axis (2) 20 incorporates two threads (7), arranged, respectively, above and below said central part (3), which are articulated together, towards their respective opposite sides, to two oblique axes (8), which, in turn, at their opposite ends, are linked in an articulated manner to the described segments (4).
Hay que destacar que las citadas roscas (7) están dispuestas de forma que el accionamiento delIt should be noted that said threads (7) are arranged so that the drive of the
30 tornillo o eje central (2) , mediante el roscado de su cabezal (2a) , provoca su respectivo desplazamiento hacia el centro del mismo, movimiento que, a su vez, provoca la apertura o distanciamiento de los segmentos30 screw or central axis (2), by threading its head (2a), causes its respective displacement towards the center of the same, movement that, in turn, causes the opening or distancing of the segments
(4) empujados por los ejes oblicuos (8) a que están(4) pushed by the oblique shafts (8) to which they are
35 vinculadas dichas roscas (7), tal como se ha descrito, consiguiéndose, a través de las ramas de anclaje (6) el35 linked said threads (7), as described, achieving, through the anchoring branches (6) the
HOJA DE SUSTITUCIÓN (REGLA 26) empuje deseado.SUBSTITUTE SHEET (RULE 26) desired thrust.
Cabe destacar que, opcionalmente, el descrito desplazamiento o separación de los segmentos (4) puede ser unilateral, para lo cual la rosca (7) relacionada con el segmento (4) que no se desee movilizar podrá ser sustituida por una rosca sin fin.It should be noted that, optionally, the described displacement or separation of the segments (4) can be unilateral, for which the thread (7) related to the segment (4) that it is not desired to move can be replaced by an endless thread.
Descrita suficientemente la naturaleza de la presente invención, asi como la manera de ponerla en práctica, no se considera necesario hacer más extensa su explicación para que cualquier experto en la materia comprenda su alcance y las ventajas que de ella se derivan, haciendo constar que, dentro de su esencialidad, podrá ser llevada a la práctica en otras formas de realización que difieran en detalle de la indicada a título de ejemplo, y a las cuales alcanzará igualmente la protección que se recaba siempre que no se altere, cambie o modifique su principio fundamental.Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to extend its explanation so that any expert in the field understands its scope and the advantages that derive from it, stating that, within its essentiality, it may be carried out in other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought provided that it does not alter, change or modify its fundamental principle .
HOJA DE SUSTITUCIÓN (REGLA 26) SUBSTITUTE SHEET (RULE 26)

Claims

R E I V I N D I C A C I O N E S
1.- TORNILLO EXPANSOR PALADINO RÁPIDO PERFECCIONADO, aplicable en tratamientos ortopédicos de disyunción maxilar basados en la separación de la sutura paladina media, caracterizado por el hecho de comprender un tornillo (2) propiamente dicho, que actúa de eje central, a cuyo centro se halla acoplada una pieza alargada y plana (3) vinculada, a su vez, en sus respectivos extremos laterales, a sendos segmentos (4) idénticos y simétricos de los que dimanan ramas de anclaje (6), destinadas a la- fijación del conjunto; en que el tornillo o eje central (2) incorpora sendas roscas (7) , dispuestas, respectivamente, por encima y por debajo de la pieza (3) central, unidas articuladamente, hacia sus respectivos lados opuestos, a dos ejes oblicuos (8) , vinculados, a su vez, en sus extremos opuestos, de forma articulada a los segmentos (4), estando dichas roscas (7) dispuestas de forma que el accionamiento del tornillo (2), mediante el roscado de su cabezal (2a) , provoca su respectivo desplazamiento hacia el centro del mismo, y la consiguiente la apertura o distanciamiento de los segmentos (4) .1.- PERFECTED QUICK PALADINO EXPANSOR SCREW, applicable in orthopedic treatments of maxillary disjunction based on the separation of the middle palladine suture, characterized by the fact of comprising a screw (2) proper, which acts as a central axis, whose center is it is coupled an elongated and flat piece (3) linked, in turn, at their respective lateral ends, to identical and symmetrical segments (4) from which emanate anchoring branches (6), intended for the assembly of the assembly; in which the screw or central axis (2) incorporates two threads (7), arranged, respectively, above and below the central part (3), articulated together, towards their respective opposite sides, to two oblique axes (8) , linked, in turn, at their opposite ends, articulated to the segments (4), said threads (7) being arranged so that the screw drive (2), by threading its head (2a), causes its respective displacement towards the center of it, and consequently the opening or distancing of the segments (4).
2.- TORNILLO EXPANSOR PALADINO RÁPIDO PERFECCIONADO, según la reivindicación 1, caracterizado por el hecho de que los segmentos (4) adoptan una configuración plantar aproximadamente en T, siendo la parte central de la misma el extremo que los vincula a la pieza central (3) con la colaboración de una pieza de unión (5) .2.- PERFECTED QUICK PALADINO EXPANSOR SCREW, according to claim 1, characterized in that the segments (4) adopt an approximately T-plantar configuration, the central part thereof being the end that links them to the central part ( 3) with the collaboration of a connecting piece (5).
3.- TORNILLO EXPANSOR PALADINO RÁPIDO PERFECCIONADO, según la reivindicación 1, caracterizado por el hecho de que, opcionalmente, el desplazamiento o3.- PERFECTED QUICK PALADINO EXPANSOR SCREW, according to claim 1, characterized in that, optionally, the displacement or
HOJA DE SUSTITUCIÓN (REGLA 26) separación de los segmentos (4) es unilateral, siendo la rosca (7), relacionada con el segmento (4) que no se moviliza, sustituida por una rosca sin fin.SUBSTITUTE SHEET (RULE 26) Segment separation (4) is unilateral, the thread (7) being related to the segment (4) that does not move, replaced by an endless thread.
HOJA DE SUSTITUCIÓN (REGLA 26) SUBSTITUTE SHEET (RULE 26)
PCT/ES2009/000415 2008-08-04 2009-08-03 Improved rapid palatal expansion screw WO2010018266A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200802329 2008-08-04
ES200802329A ES2332692B1 (en) 2008-08-04 2008-08-04 EXPANSOR SCREW PALADINO FAST PERFECTED.

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WO2010018266A1 true WO2010018266A1 (en) 2010-02-18

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WO (1) WO2010018266A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016372936B2 (en) * 2015-12-15 2018-12-13 Sung Chul Moon Palatal expansion appliance

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Publication number Priority date Publication date Assignee Title
US3977082A (en) * 1975-09-23 1976-08-31 Siatkowski Raymond E Palatal expander
US6334771B1 (en) * 2000-09-15 2002-01-01 Eric Jein-Wein Liou Rapid palatal expander
US20040214126A1 (en) * 2003-04-25 2004-10-28 Rolf Forster Orthodontic expansion screw, especially palatinal split screw
ES2237072T3 (en) * 1998-03-10 2005-07-16 Elisabetta Di Massa MULTIFUNCTIONAL MODULAR DEVICE FOR ORTHODONTICS AND DENTOMAXYLOPHACIAL ORTHOPEDIA.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977082A (en) * 1975-09-23 1976-08-31 Siatkowski Raymond E Palatal expander
ES2237072T3 (en) * 1998-03-10 2005-07-16 Elisabetta Di Massa MULTIFUNCTIONAL MODULAR DEVICE FOR ORTHODONTICS AND DENTOMAXYLOPHACIAL ORTHOPEDIA.
US6334771B1 (en) * 2000-09-15 2002-01-01 Eric Jein-Wein Liou Rapid palatal expander
US20040214126A1 (en) * 2003-04-25 2004-10-28 Rolf Forster Orthodontic expansion screw, especially palatinal split screw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016372936B2 (en) * 2015-12-15 2018-12-13 Sung Chul Moon Palatal expansion appliance
JP2019503747A (en) * 2015-12-15 2019-02-14 ムン、ソン チュルMOON, Sung Chul Palatal extension device
US10743965B2 (en) 2015-12-15 2020-08-18 Sung Chul MOON Palatal expansion appliance

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ES2332692A1 (en) 2010-02-10
ES2332692B1 (en) 2010-10-01

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