ES2607140A1 - Mechanical device for recording the position of the head (Machine-translation by Google Translate, not legally binding) - Google Patents
Mechanical device for recording the position of the head (Machine-translation by Google Translate, not legally binding) Download PDFInfo
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- ES2607140A1 ES2607140A1 ES201531379A ES201531379A ES2607140A1 ES 2607140 A1 ES2607140 A1 ES 2607140A1 ES 201531379 A ES201531379 A ES 201531379A ES 201531379 A ES201531379 A ES 201531379A ES 2607140 A1 ES2607140 A1 ES 2607140A1
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- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 17
- 239000000243 solution Substances 0.000 claims abstract description 15
- 239000001632 sodium acetate Substances 0.000 claims abstract description 14
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 14
- 239000013078 crystal Substances 0.000 claims abstract description 12
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000899 Gutta-Percha Substances 0.000 claims description 3
- 240000000342 Palaquium gutta Species 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007799 cork Substances 0.000 claims description 3
- 229920000588 gutta-percha Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 2
- 230000003100 immobilizing effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0492—Positioning of patients; Tiltable beds or the like using markers or indicia for aiding patient positioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Description
DISPOSITIVO MECANICO PARA REGISTRO DE LA POSICION DE LA CABEZAMECHANICAL DEVICE FOR RECORDING THE HEAD POSITION
DESCRIPCIONDESCRIPTION
5 OBJETO DE LA INVENCION5 OBJECT OF THE INVENTION
La presente invention se encuadra en el campo tecnico de las medidas encaminadas a establecer un diagnostico, concretamente a los fijadores para partes del cuerpo que se sostienen por mordedura, y se refiere a un dispositivo mecanico para registro de la position de 10 la cabeza.The present invention falls within the technical field of the measures aimed at establishing a diagnosis, specifically the fixators for body parts that are held by bite, and refers to a mechanical device for recording the position of the head.
ANTECEDENTES DE LA INVENCIONBACKGROUND OF THE INVENTION
El avance de las tecnicas radiologicas y del software de reconstruction anatomica 15 tridimensional ha facilitado el desarrollo de nuevos escenarios para diagnosticos y tratamientos cada vez mas complejos y personalizados de patologlas craneo-faciales; sin embargo dichas tecnicas presentan ciertos problemas aun no resueltos.The advancement of radiological techniques and three-dimensional anatomical reconstruction software 15 has facilitated the development of new scenarios for increasingly complex and personalized diagnoses and treatments of cranio-facial pathologies; However, these techniques present certain problems not yet solved.
Entre dichos problemas se encuentra el de trasladar la informacion sobre la orientacion y 20 posicion de determinadas estructuras anatomicas, como por ejemplo la cabeza, del mundo real a entornos virtuales tridimensionales, para contar con una referencia real que permita estudiar los tratamientos mas adecuados para cada caso.Among these problems is the transfer of information on the orientation and position of certain anatomical structures, such as the head, from the real world to three-dimensional virtual environments, to have a real reference to study the most appropriate treatments for each case.
DESCRIPCION DE LA INVENCIONDESCRIPTION OF THE INVENTION
2525
El objeto de invencion es un dispositivo mecanico para registrar la posicion de la cabeza de una persona sometida a una prueba de radiodiagnostico, que consiste basicamente en un plano realizado en un material radiopaco que queda fijado mediante una reaction qulmica, marcando asl la posicion que se desea tomar como referencia, que normalmente es la llamada posicion 30 natural de la cabeza o NHP por sus siglas en ingles (Natural Head Position). Debido a la opacidad del plano frente a la radiation, este es visible en cualquier imagen obtenida por medios de radiodiagnostico y permite de esta manera tener una referencia clara de la posicion real que ademas puede ser trasladable a entornos virtuales tridimensionales.The object of the invention is a mechanical device to record the position of the head of a person undergoing a radiodiagnostic test, which basically consists of a plane made of a radiopaque material that is fixed by a chemical reaction, marking the position You want to take as a reference, which is normally the so-called natural head position or NHP by its acronym in English (Natural Head Position). Due to the opacity of the plane in front of the radiation, it is visible in any image obtained by radiodiagnostic means and thus allows to have a clear reference of the real position that can also be transferable to three-dimensional virtual environments.
El plano radiopaco, realizado preferentemente en bario o gutapercha y que esencialmente tieneThe radiopaque plane, preferably made of barium or gutta percha and essentially has
forma de placa, esta encastrado en el interior de una esfera, estando dicha esfera preferentemente realizada en un material con alta capacidad de flotabilidad, como por ejemplo corcho. Esta esfera contenedora del plano radiopaco se dispone dentro de una camara esferica cerrada y estanca, con dicha estanqueidad asegurada mediante sellado, siendo el diametro de 5 esta camara ligeramente superior al de la esfera flotante. El espacio vaclo que queda entre la pared interior de la camara esferica y la pared exterior de la esfera flotante queda rellenado con un llquido en el que flota la esfera. Dicho llquido comprende una solution acuosa de un compuesto qulmico capaz de cambiar de estado llquido a solido mediante una reaction qulmica rapida.plate-shaped, it is embedded inside a sphere, said sphere being preferably made of a material with high buoyancy capacity, such as cork. This sphere containing the radiopaque plane is disposed within a sealed and sealed spherical chamber, with said tightness secured by sealing, the diameter of 5 being this camera slightly higher than that of the floating sphere. The empty space between the inner wall of the spherical chamber and the outer wall of the floating sphere is filled with a liquid in which the sphere floats. Said liquid comprises an aqueous solution of a chemical compound capable of changing from a liquid to a solid state by means of a rapid chemical reaction.
1010
El compuesto qulmico que preferentemente se anade a la disolucion es acetato de sodio, una sal de acido acetico no toxica, abundante, economica y ampliamente utilizada en la industria como agente de vulcanizacion, saborizante o conservante, entre otros usos. Es conocida la propiedad que tienen las soluciones acuosas sobresaturadas de acetato de sodio de cambiar 15 rapidamente a un estado solido cristalino en distintas situaciones, como por ejemplo al ejercer presion sobre la disolucion contenida en un envase, mediante estlmulos radioelectricos o al anadir cristales de acetato sodico, propiedad que es empleada por ejemplo en el llamado "hielo instantaneo”.The chemical compound that is preferably added to the solution is sodium acetate, a non-toxic, abundant, economical and widely used acetic acid salt in the industry as a vulcanization, flavoring or preservative agent, among other uses. It is known the property of supersaturated aqueous sodium acetate solutions to quickly change to a crystalline solid state in different situations, such as by exerting pressure on the solution contained in a container, by radioelectric stimuli or by adding acetate crystals. sodium, property that is used for example in the so-called "instant ice".
20 En el objeto de invention, la reaccion da comienzo cuando se ponen en contacto unos cristales de acetato de sodio con la disolucion acuosa, constituyendo dichos cristales los nucleos alrededor de los cuales se empiezan a juntar las moleculas de acetato, produciendose una reaccion exotermica en cadena que causa la instantanea cristalizacion y consecuente solidification de dicha disolucion, lo cual hace que la esfera contenedora del plano radiopaco 25 quede en una position fija dentro de la camara esferica al estar completamente rodeada por el acetato de sodio solido. Por lo tanto, el plano radiopaco queda inmovilizado, marcando siempre la horizontal real y definiendo as! la conocida como “horizontal verdadera”.In the object of the invention, the reaction begins when sodium acetate crystals are brought into contact with the aqueous solution, said crystals constituting the nuclei around which the acetate molecules begin to join, producing an exothermic reaction in chain that causes the instantaneous crystallization and consequent solidification of said solution, which causes the sphere containing the radiopaque plane 25 to remain in a fixed position within the spherical chamber as it is completely surrounded by solid sodium acetate. Therefore, the radiopaque plane is immobilized, always marking the real horizontal and defining as! known as "true horizontal".
La adicion de cristales de acetato de sodio a la disolucion contenida en la esfera, y la 30 consecuente activation del dispositivo, se produce cuando el explorador (profesional sanitario como medico, odontologo, enfermera, etc.) pulsa un tapon con un hueco en su interior que contiene los cristales de acetato sodico, que pasan desde ese hueco del tapon hasta el interior de la esfera a traves de un conducto, introduciendo en ese momento el dispositivo en la boca del paciente para que lo sostenga entre los maxilares y colocando su cabeza en la posicion queThe addition of sodium acetate crystals to the solution contained in the sphere, and the consequent activation of the device, occurs when the explorer (healthcare professional such as doctor, dentist, nurse, etc.) presses a plug with a hole in its inside that contains the sodium acetate crystals, which pass from that hollow of the cap to the inside of the sphere through a conduit, then introducing the device into the patient's mouth to hold it between the jaws and placing his head in the position that
se desea referenciar. Los cristales entran en contacto con la disolucion y provocan su cristalizacion, inmovilizando de ese modo a la esfera a la cual rodean y que contiene el plano radiopaco, quedando fijada de esa manera la position. Como ya se ha indicado, dicha reaction es exotermica, aunque el calor desprendido no es de una magnitud tal que pueda causar 5 molestias ni danos al paciente, sino que por el contrario se emplea como indicador de que el dispositivo ha funcionado correctamente.You want to reference. The crystals come into contact with the solution and cause its crystallization, thereby immobilizing the sphere they surround and containing the radiopaque plane, thereby fixing the position. As already indicated, said reaction is exothermic, although the heat given off is not of such magnitude that it can cause discomfort or harm to the patient, but instead is used as an indicator that the device has worked correctly.
El dispositivo de la camara esferica contenedora de la esfera flotante, que a su vez contiene al plano radiopaco, el tapon y el conducto, se montan, junto con sus necesarias conexiones 10 internas, en un soporte de forma esencialmente ovoidal y dimensiones adecuadas para, como ya se ha indicado anteriormente, introducirse en la boca del paciente, que lo sostiene mordiendolo entre los maxilares superior e inferior ya que los estos huesos de la cara no presentan ninguna oscilacion voluntaria ni involuntaria respecto al craneo, lo cual permite obtener una posicion fija. La zona del soporte destinada a sostenerse con los dientes suele 15 recubrirse de una cera, similar a la empleada en odontologla, con el objeto de facilitar la mordida del usuario sin que se produzcan danos en su dentadura.The device of the spherical chamber containing the floating sphere, which in turn contains the radiopaque plane, the plug and the conduit, are mounted, together with their necessary internal connections 10, on an essentially ovoidal shaped support and dimensions suitable for, as indicated above, enter the patient's mouth, which supports it by biting it between the upper and lower jaws since these bones of the face do not present any voluntary or involuntary oscillation with respect to the skull, which allows to obtain a fixed position . The area of the support intended to be held with the teeth is usually covered with a wax, similar to that used in dentistry, in order to facilitate the bite of the user without damaging the teeth.
Una vez inmovilizada la esfera en el dispositivo sostenido por los maxilares del paciente, se realizan las pruebas radiograficas necesarias, en las cuales se reflejara el plano radiopaco 20 junto con los huesos del craneo, marcando dicho plano la mencionada “horizontal verdadera” que se tomara como referencia para trasladar las imagenes obtenidas en las pruebas a entornos virtuales tridimensionales.Once the sphere is immobilized in the device supported by the patient's jaws, the necessary radiographic tests are performed, in which the radiopaque plane 20 will be reflected along with the skull bones, marking said plane the mentioned "true horizontal" to be taken as a reference to transfer the images obtained in the tests to three-dimensional virtual environments.
El dispositivo mecanico para registrar la posicion de la cabeza asl descrito permite obtener una 25 posicion fija de referencia de una manera sencilla y economica, facilitando la interpretation de imagenes obtenidas mediante tecnicas radiologicas y su traslacion a entornos virtuales tridimensionales. Dicho sistema puede ser ademas reutilizable, ya que basta con calentar la solution de acetato solido cristalizada para que vuelva a su estado llquido.The mechanical device for recording the position of the head asl described allows obtaining a fixed reference position in a simple and economical manner, facilitating the interpretation of images obtained by radiological techniques and their transfer to three-dimensional virtual environments. Said system can also be reusable, since it is sufficient to heat the crystallized solid acetate solution so that it returns to its liquid state.
30 DESCRIPCION DE LOS DIBUJOS30 DESCRIPTION OF THE DRAWINGS
Para complementar la description que se esta realizando y con objeto de ayudar a una mejor comprension de las caracterlsticas de la invention, de acuerdo con un ejemplo preferente de realizacion practica de la misma, se acompana como parte integrante de dicha descripcion, unTo complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, it is accompanied as an integral part of said description, a
juego de dibujos en donde con caracter ilustrativo y no limitativo, se ha representado lo siguiente:set of drawings where, with an illustrative and non-limiting nature, the following has been represented:
Figura 1.- Muestra una vista en perspectiva del dispositivo, en la que se aprecian sus 5 principales elementos constituyentes.Figure 1.- Shows a perspective view of the device, in which its 5 main constituent elements are appreciated.
Figura 2.- Muestra una vista lateral del esquema de montaje del plano radiopaco en la esfera contenedora, mediante un corte transversal.Figure 2.- It shows a side view of the assembly plan of the radiopaque plane in the container sphere, by a cross-section.
10 Figura 3.- Muestra una vista en planta de las piezas inferior y superior, junto con la goma aislante intermedia, que constituyen la estructura soporte del dispositivo.10 Figure 3.- Shows a plan view of the lower and upper parts, together with the intermediate insulating rubber, which constitute the support structure of the device.
Figura 4.- Muestra una vista lateral del dispositivo en la que se aprecian sus principales elementos constituyentes.Figure 4.- Shows a side view of the device in which its main constituent elements are appreciated.
15fifteen
Figura 5.- Muestra una vista lateral del tapon de activacion.Figure 5.- Shows a side view of the activation cap.
REALIZACION PREFERENTE DE LA INVENCIONPREFERRED EMBODIMENT OF THE INVENTION
20 Seguidamente se proporciona, con ayuda de las figuras anteriormente referidas, una20 Next, with the help of the aforementioned figures, a
explication detallada de un ejemplo de realization preferente del objeto de la presente invencion.Detailed explanation of an example of preferred embodiment of the object of the present invention.
El dispositivo mecanico para registro de la position de la cabeza que se describe, mostrado en 25 la figura 1, comprende un plano radiopaco (1), realizado preferentemente en materiales opacos a la radiation pero que eviten la production de artefactos radiograficos, como el Bario o la gutapercha. Dicho plano radiopaco (1) tiene forma de lamina (2) esencialmente circular, desde una de cuyas caras se proyecta un cilindro (3) de diametro menor al de la lamina (2) de la cual parte. Dicho plano radiopaco (1) se encastra entre dos semiesferas 30 preferentemente realizadas en corcho, tal y como se muestra en la figura 2, queThe mechanical device for recording the position of the head described, shown in Figure 1, comprises a radiopaque plane (1), preferably made of materials opaque to radiation but avoiding the production of radiographic devices, such as Barium or gutta percha. Said radiopaque plane (1) is in the form of an essentially circular sheet (2), from one of whose faces a cylinder (3) of smaller diameter is projected to that of the sheet (2) from which it starts. Said radiopaque plane (1) is embedded between two hemispheres 30 preferably made of cork, as shown in Figure 2, which
posteriormente se unen para formar una esfera (4) de forma que la lamina (2) queda en posicion diametral respecto a dicha esfera (4), mientras que el extremo del cilindro (3) coincide con uno de los polos de la esfera (4). Esta configuration del plano radiopaco (1) hace que, una vez insertado en la esfera (4), y debido al peso ejercido por el cilindro (3)subsequently joined to form a sphere (4) so that the sheet (2) is in a diametral position with respect to said sphere (4), while the end of the cylinder (3) coincides with one of the poles of the sphere (4 ). This configuration of the radiopaque plane (1) means that, once inserted in the sphere (4), and due to the weight exerted by the cylinder (3)
proyectado desde la lamina (2), el plano radiopaco (1) se encuentre siempre en posicion horizontal.projected from the sheet (2), the radiopaque plane (1) is always in a horizontal position.
La esfera (4) contenedora del plano radiopaco (1) se inserta en una estructura (5) de base, 5 formada a su vez por la union de una pieza superior (6) y una pieza inferior (7) con una gomaThe sphere (4) containing the radiopaque plane (1) is inserted into a base structure (5), 5 in turn formed by the union of an upper part (6) and a lower part (7) with a rubber
(8) aislante interpuesta entre ambas piezas tal como se ve en la figura 3, teniendo tanto la pieza superior (6), la inferior (7) y la goma (8) como la estructura (5) resultante de su union, una forma esencialmente ovoidal. Tanto desde una de las superficies de la pieza superior (6) como de la pieza inferior (7), y tomando como centro uno de los ejes mayores del ovoide, se proyecta(8) insulation interposed between both pieces as seen in figure 3, having both the upper part (6), the lower part (7) and the rubber (8) and the structure (5) resulting from its union, a shape essentially ovoidal. Both from one of the surfaces of the upper part (6) and the lower part (7), and taking as center one of the major axes of the ovoid, it is projected
10 una semiesfera, de modo que al unir la pieza superior (6) con la pieza inferior (7) de forma que sus respectivas semiesferas queden unidas por sus ecuadores, se forma una primera camara10 a hemisphere, so that by joining the upper part (6) with the lower part (7) so that their respective hemispheres are joined by their equators, a first chamber is formed
(9) esferica y cerrada, teniendo practicado la goma (8) interpuesta un primer orificio (10) de diametro igual al de las semiesferas para permitir su conexion y la formation de esta primera camara (9). Dicha primera camara (9) tiene un diametro superior al de la esfera (4) que(9) spherical and closed, having the rubber (8) interposed a first hole (10) of diameter equal to that of the hemispheres to allow its connection and the formation of this first chamber (9). Said first chamber (9) has a diameter greater than that of the sphere (4) that
15 contiene al plano radiopaco (1).15 contains the radiopaque plane (1).
La primera camara (9) define en su interior una cavidad cerrada dentro de la cual se dispone dicha esfera (4) que contiene al plano radiopaco (1). El espacio restante entre la cara interna de la primera camara (9) y la cara externa de la esfera (4) se rellena con una disolucion acuosa 20 sobresaturada de acetato de sodio, de forma que la esfera (4) con el plano radiopaco (1) queda flotante en dicha disolucion. La primera camara (9) tiene practicado un segundo orificio (11) que conecta con un conducto (12) practicado en la pieza superior (6) que conexiona con una segunda camara (13) cerrada cillndrica en la que se aloja un tapon activador (14) que contiene unos cristales de acetato sodico. Tanto la primera camara (9) como el conducto (12) quedan 25 rellenos con la disolucion sobresaturada.The first chamber (9) defines in its interior a closed cavity within which said sphere (4) is disposed that contains the radiopaque plane (1). The remaining space between the inner face of the first chamber (9) and the outer face of the sphere (4) is filled with an aqueous solution 20 supersaturated with sodium acetate, so that the sphere (4) with the radiopaque plane ( 1) it is floating in said solution. The first chamber (9) has a second hole (11) connected to a conduit (12) made in the upper part (6) that connects to a second chamber (13) closed cylindrical in which an activating cap ( 14) which contains crystals of sodium acetate. Both the first chamber (9) and the duct (12) are filled with the supersaturated solution.
Dicha segunda camara (13) se crea, al igual que la primera camara (9) esferica, al unir la pieza superior (6) y la pieza inferior (7) que forman la estructura (5), y queda definida por la union de unas proyecciones cillndricas practicadas en la superficie de ambas piezas, teniendo 30 practicada la goma (8) intermedia un tercer orificio (15) para permitir la union de ambos cilindros y, por tanto, la formacion de la segunda camara (13). Esta segunda camara (13) tiene a su vez practicado un cuarto orificio (16) coincidente con el punto de entrada del conducto (12), quedando cubierto dicho cuarto orificio (16) por un sello cuando el dispositivo aun no ha sido activado, de manera que la disolucion sobresaturada queda encerrada en el conducto (12)Said second chamber (13) is created, like the first spherical chamber (9), by joining the upper part (6) and the lower part (7) that form the structure (5), and is defined by the union of cylindrical projections made on the surface of both pieces, the rubber (8) having an intermediate hole (15) having been made to allow the union of both cylinders and, therefore, the formation of the second chamber (13). This second chamber (13) has in turn a fourth hole (16) coinciding with the entry point of the duct (12), said fourth hole (16) being covered by a seal when the device has not yet been activated, of so that the supersaturated solution is enclosed in the duct (12)
y la primera camara (9).and the first camera (9).
El tapon activador (14), de forma esencialmente cillndrica como se muestra en la figura 5, tiene practicado un quinto orificio (17) en su superficie, que define la entrada a una cavidad (18) 5 practicada en su interior en la cual se alojan unos cristales de acetato sodico.The activating cap (14), essentially cylindrical as shown in Figure 5, has a fifth hole (17) made on its surface, which defines the entrance to a cavity (18) 5 made inside it in which They house crystals of sodium acetate.
El dispositivo esta disenado y dimensionado para ser sostenido por los maxilares del paciente, que muerde el borde diametral exterior de la estructura (5) ovoidal, el cual se encuentra recubierto por una cera (19) de mordida destinada a facilitar la sujecion y a evitar posibles 10 roces o molestias en la dentadura.The device is designed and sized to be supported by the patient's jaws, which bites the outer diametral edge of the ovoidal structure (5), which is covered by a bite wax (19) intended to facilitate clamping and avoid possible 10 friction or discomfort in the teeth.
La activacion del dispositivo, sujeto entre los dientes del paciente, se produce cuando el explorador profesional sanitario gira el tapon activador (14) de forma que el quinto orificio (17) practicado en su superficie quede enfrentado con el cuarto orificio (16) de la segunda camara 15 (13), rompiendose el sello que recubre dicho cuarto orificio (16) y conectando asl con elThe activation of the device, held between the patient's teeth, occurs when the professional health explorer rotates the activating cap (14) so that the fifth hole (17) made on its surface faces the fourth hole (16) of the second chamber 15 (13), the seal covering said fourth hole (16) being broken and thus connecting with the
conducto (12), de forma que los cristales de acetato sodico alojados en la cavidad (18) interna del tapon activador (14) entran en contacto con la disolucion sobresaturada de acetato sodico contenida tanto en el conducto (12) como en la primera camara (9), comenzando en ese momento una reaction exotermica de cristalizacion, que en unos instantes provoca que se 20 solidifique toda la disolucion y que la esfera (4) contenedora del plano radiopaco (1) quede fija, inmovilizando asl a dicho plano radiopaco (1) que indicara la horizontal en la position a fijar.conduit (12), so that the sodium acetate crystals housed in the inner cavity (18) of the activating cap (14) come into contact with the supersaturated sodium acetate solution contained in both the conduit (12) and the first chamber (9), starting at that time an exothermic crystallization reaction, which in a few moments causes the entire solution to solidify and that the sphere (4) containing the radiopaque plane (1) is fixed, thus immobilizing said radiopaque plane ( 1) to indicate the horizontal in the position to be set.
Claims (9)
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| ES201531379A ES2607140B1 (en) | 2015-09-29 | 2015-09-29 | Mechanical device for recording head position |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078600A (en) * | 1990-06-25 | 1992-01-07 | Austin David G | Multifunction mandibular movement measuring device |
| US20100075274A1 (en) * | 2006-12-01 | 2010-03-25 | Rolf Klett | Method and device for the transfer of a jaw model in relation to a hinge axis |
| US20100151409A1 (en) * | 2007-07-17 | 2010-06-17 | Munehiro Motonori | Method for determining position of lower jaw, apparatus and program thereof |
| WO2014004730A2 (en) * | 2012-06-26 | 2014-01-03 | Loma Linda University | Device, system and methods for determining and measuring temporomandibular joint positions and movements |
| US20150164442A1 (en) * | 2012-07-26 | 2015-06-18 | Cephmedical Corporation | X-ray radiographic apparatus, method of measuring head tilt in taking radiograph, stand for x-ray radiographic apparatus, chair for x-ray radiographic apparatus, and head tilt setting device |
-
2015
- 2015-09-29 ES ES201531379A patent/ES2607140B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078600A (en) * | 1990-06-25 | 1992-01-07 | Austin David G | Multifunction mandibular movement measuring device |
| US20100075274A1 (en) * | 2006-12-01 | 2010-03-25 | Rolf Klett | Method and device for the transfer of a jaw model in relation to a hinge axis |
| US20100151409A1 (en) * | 2007-07-17 | 2010-06-17 | Munehiro Motonori | Method for determining position of lower jaw, apparatus and program thereof |
| WO2014004730A2 (en) * | 2012-06-26 | 2014-01-03 | Loma Linda University | Device, system and methods for determining and measuring temporomandibular joint positions and movements |
| US20150164442A1 (en) * | 2012-07-26 | 2015-06-18 | Cephmedical Corporation | X-ray radiographic apparatus, method of measuring head tilt in taking radiograph, stand for x-ray radiographic apparatus, chair for x-ray radiographic apparatus, and head tilt setting device |
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