WO2009092830A1 - Internal dynamic fastening device applicable to the osseous repair of fractures - Google Patents
Internal dynamic fastening device applicable to the osseous repair of fractures Download PDFInfo
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- WO2009092830A1 WO2009092830A1 PCT/ES2008/000795 ES2008000795W WO2009092830A1 WO 2009092830 A1 WO2009092830 A1 WO 2009092830A1 ES 2008000795 W ES2008000795 W ES 2008000795W WO 2009092830 A1 WO2009092830 A1 WO 2009092830A1
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- bone
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- internal dynamic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7216—Intramedullary pins, nails or other devices for bone lengthening or compression
- A61B17/7225—Intramedullary pins, nails or other devices for bone lengthening or compression for bone compression
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
Definitions
- the invention refers to an internal dynamic fixation device applicable to bone fracture repair, contributing to the function to which several advantages and innovative features are intended, which will be described in detail. later, which represent a remarkable improvement compared to the systems currently known for the same purpose.
- the object of the invention consists of a device for fixing the type of those intended to be implanted internally, applied directly to the fractured bone for the recovery of tears, which has the peculiarity of being constituted as a means by means of that, at the same time that stability is conferred to the fracture in all the planes of the space, it presents a certain degree of deformation capable of recovering its original shape, in order to provide movement to the fracture focus, thereby obtaining important advantages in patient recovery
- De Bastiani used the term dynamization to describe the transfer of a progressive charge to the point of fracture at a given time in the healing cycle.
- dynamization There is currently a compendium of experimental tasks that indicates that the different types of movement applied are especially beneficial at different stages of the healing process, and that the term "dynamization" should be extended to all of them.
- the two main types of movement that fall under this category are: cyclic micromotion and progressive loading.
- the internal dynamic fixation device applicable to bone fracture repair that the invention proposes, therefore, satisfactorily achieves the objectives indicated as suitable, becoming a remarkable novelty within its field, since according to its application it is achieved, so It is essential to provide an effective response to the lack that exists in the current systems, with the characterizing details that make it possible adequately included in the final claims that accompany the present description.
- the proposed device consists of a metal internal fixing body, applicable by means of corresponding fixing screws directly on the bone fragments to be repaired, which can consist of both a plate or plate, of which they are fixed in The surface of the bone, as in an intramedullary nail, presenting the particularity of being configured by two parts joined in its central area through a flexible body capable of recovering from its original position, such as a spring or similar, which provides to said metal body the ability to present a certain degree of mobility between both parties that allows to stimulate bone recovery in the fractures to which it is applied.
- the new internal dynamic fixation device applicable to bone fracture repair therefore, represents an innovative structure with structural and constitutive characteristics unknown until now for this purpose, reasons that, together with its practical utility, provide it with sufficient foundation to obtain the exclusivity privilege requested.
- Figure number 1 Shows a schematic view in longitudinal section of an embodiment example of the internal dynamic fixation element applicable to bone repair of fractures object of the invention in a preferred embodiment thereof as endomedular nail, being seen in said view. the parts and elements of which the device consists as well as its way of fixing the bone fragments.
- Figure 2 shows a schematic view of another embodiment of the device of the invention, in this case, in a variant embodiment as a plate applicable to the outer surface of the bone,
- the internal dynamic fixation device applicable to bone fracture repair that the invention advocates is essentially configured from a metal fixing body internal (1), applicable by means of corresponding fixing screws (2) directly on the fragments (3) and (4) of the bone in which the fracture (5) to be repaired has occurred, in which said body (1) is constituted by two parts (la) and (Ib), each of said parts being fixed to one of the aforementioned fragments (3) and (4) of the bone, and said parts (la) and (Ib) being joined at their ends in the area central of the body (1) through a flexible body (6), which is made with the appropriate material and configuration to present the necessary stability and at the same time have the ability to recover from its original position, such as a dock or similar, contributing , consequently, to the metallic body (1) the ability to present a certain degree of mobility between said parts (la) and (Ib) that is transmitted to the respective fragments
- the body (1) of the described device in a preferred embodiment of the invention, is configured as an endomedular nail, counting their respective parts (la) and (Ib), joined together by he previously described flexible body (6), with two static locking and dynamic locking screws (2) that fix them respectively to the fragments (3) and (4) of the broken bone.
- said metal body (1) forming the device is configured as a plate whose respective parts (la) and (Ib), joined together by means of the flexible body (6), the fragments (3) and (4) of the broken bone are fixed externally by means of corresponding screws (2) provided with an anchoring system to the plate.
Abstract
Internal dynamic fastening device applicable to the osseous repair of fractures, for fastening directly on the bone, by means of corresponding screws (2), constituted by a metal body (1) comprising two parts (1a) and (1b); in which said parts (1a) and (1b) are connected together via the ends thereof in the central region of the body (1) by means of a flexible body (6), with the ability to resume the original position thereof, such as a spring or the like, the metal body (1) being given the capacity to move to a certain extent.
Description
DISPOSITIVO DE FIJACIÓN DINÁMICA INTERNA APLICABLE A LA REPARACIÓN ÓSEA DE FRACTURASINTERNAL DYNAMIC FIXING DEVICE APPLICABLE TO BONE REPAIR OF FRACTURES
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 dispositivo de fijación dinámica interna aplicable a la reparación ósea de fracturas, aportando a la función a que se destina varias ventajas e innovadoras características, que se describirán en detalle más adelante, que suponen una destacable mejora frente a los sistemas actualmente conocidos para el mismo fin.The invention, as stated in the present specification, refers to an internal dynamic fixation device applicable to bone fracture repair, contributing to the function to which several advantages and innovative features are intended, which will be described in detail. later, which represent a remarkable improvement compared to the systems currently known for the same purpose.
De forma más concreta, el objeto de la invención consiste en un dispositivo de fijación del tipo de los destinados a ser implantados internamente, aplicado directamente sobre el hueso fracturado para la recuperación de roturas, el cual presenta la particularidad de constituirse como un medio mediante el que, a la vez que se confiere estabilidad a la fractura en todos los planos del espacio, presenta un cierto grado de deformación capaz de recuperar su forma original, en orden a proveer de movimiento al foco de la fractura, consiguiendo con ello importantes ventajas en la recuperación del paciente.More specifically, the object of the invention consists of a device for fixing the type of those intended to be implanted internally, applied directly to the fractured bone for the recovery of tears, which has the peculiarity of being constituted as a means by means of that, at the same time that stability is conferred to the fracture in all the planes of the space, it presents a certain degree of deformation capable of recovering its original shape, in order to provide movement to the fracture focus, thereby obtaining important advantages in patient recovery
CAMPO DE APLICACIÓNSCOPE
El campo de aplicación de la presente invención se encuentra dentro de la industria dedicada a la fabricación de instrumentos médicos y similares.
ANTECEDENTES DE LA INVENCIÓNThe field of application of the present invention is within the industry dedicated to the manufacture of medical instruments and the like. BACKGROUND OF THE INVENTION
Actualmente está universalmente reconocido que es necesario cierto grado de movimiento para la formación del callo óseo externo. En las fracturas femorales tratadas con tracción sin tablilla (como se hacia en el pasado) , en el punto de la fractura se producían macromovimientos en los primeros dias a continuación de la lesión (Lippert 1974) y éstos se asociaban con la producción de cantidades ingentes de callo óseo externo.It is currently universally recognized that a certain degree of movement is necessary for the formation of the external bone callus. In femoral fractures treated with no splint traction (as was done in the past), macromovements occurred at the point of the fracture in the first days after the injury (Lippert 1974) and these were associated with the production of huge amounts of external bone callus.
También es conocido que las fracturas tratadas con escayola se mueven considerablemente en los primeros dias tras la lesión y que las fracturas de tibia tratadas de este modo, en combinación con el soporte de peso temprano, suelen curar con una sustancial formación de callo óseo (Sarmiento y al 1989) .It is also known that plaster-treated fractures move considerably in the first few days after the injury and that tibia fractures treated in this way, in combination with early weight support, usually heal with substantial bone callus formation (Sarmiento and to 1989).
Es conveniente mencionar, además, que en las situaciones de fractura con micromovimiento temprano cíclico y continuo, como en el caso de las fracturas de costilla sujetas a los altibajos del movimiento respiratorio, se produce una abundante formación de callo óseo externo.It is also worth mentioning that in situations of fracture with cyclic and continuous early micromotion, as in the case of rib fractures subject to the ups and downs of respiratory movement, an abundant formation of external bone callus occurs.
Por el contrario, cuando la fijación externa se aplica en combinación con la fijación interna, o cuando se emplea fijación interna con placa y tornillos, se inhibe el movimiento entre los fragmentos óseos y la formación de callo óseo externo se reduce o elimina por completo.On the contrary, when the external fixation is applied in combination with the internal fixation, or when internal fixation with plate and screws is used, movement between the bone fragments is inhibited and the formation of external bone callus is reduced or completely eliminated.
La fijación externa sí ofrece oportunidades para la aplicación de cargas controladas en el punto de
fractura. Esta posibilidad fue reconocida por Giovanni De Bastiani, originalmente profesor de fisiología en la Universidad de Papua, y después profesor de ortopedia en la Universidad de Verona. La denominó, "DINAMIZACION".External fixation does offer opportunities for the application of controlled loads at the point of fracture. This possibility was recognized by Giovanni De Bastiani, originally professor of physiology at the University of Papua, and later professor of orthopedics at the University of Verona. He named it, "DYNAMIZATION".
Inicialmente, De Bastiani utilizó el término dinamización para describir la transferencia de una carga progresiva al punto de fractura en un momento determinado del ciclo de curación. Actualmente existe un compendio de tareas experimentales que indica que los distintos tipos de movimiento aplicado son especialmente beneficiosos en distintas fases del proceso de curación, y que el término "dinamización" debería extenderse a todos ellos.Initially, De Bastiani used the term dynamization to describe the transfer of a progressive charge to the point of fracture at a given time in the healing cycle. There is currently a compendium of experimental tasks that indicates that the different types of movement applied are especially beneficial at different stages of the healing process, and that the term "dynamization" should be extended to all of them.
Los dos tipos principales de movimiento que se enmarcan en dicha categoría son: el micromovimiento cíclico y la carga progresiva.The two main types of movement that fall under this category are: cyclic micromotion and progressive loading.
- MICROMOVIMIENTO CÍCLICO. En un estudio experimental realizado con tibias de oveja, se demostró que la aplicación de pequeñas cantidades de micromovimiento en una fase inicial, a continuación de la osteotomía, estimulaba la formación de callo óseo externo (Goodship y Kenwright 1985) . Para este estudio se utilizaron periodos breves de movimiento axial cíclico (500 ciclos con 30% de esfuerzo, en periodos diarios de 17 minutos) , iniciados poco tiempo después de producida la lesión. En este y otros estudios se ha comprobado la importancia decisiva que tienen la cantidad de esfuerzo aplicado y el tiempo de aplicación del micromovimiento cíclico. Respecto al grado de esfuerzo aplicado, mientras que con un 30% se lograba el resultado buscado con estimulación de la formación de callo óseo, con niveles muy elevados (60%) o
demasiado bajos (5%) se inhibía la curación. En cuanto al momento de la aplicación de micromovimiento, si se retrasaba hasta 6 semanas después de la osteotomía, se inhibía la curación.- CYCLIC MICROMOVEMENT. In an experimental study conducted with sheep tibiae, it was shown that the application of small amounts of micromotion in an initial phase, following osteotomy, stimulated the formation of external bone callus (Goodship and Kenwright 1985). For this study, brief periods of cyclic axial movement were used (500 cycles with 30% effort, in daily periods of 17 minutes), initiated shortly after the injury occurred. In this and other studies the decisive importance of the amount of effort applied and the time of application of the cyclic micromotion has been proven. Regarding the degree of effort applied, while with 30% the desired result was achieved with stimulation of bone callus formation, with very high levels (60%) or too low (5%) healing was inhibited. As for the time of micromotion application, if it was delayed up to 6 weeks after osteotomy, healing was inhibited.
La contribución importante del micromovimiento cíclico al proceso general de curación se ha demostrado de manera irrefutable en un estudio clínico (Kenwright y al 1991) . En dicho estudio participaron 82 pacientes con fractura tibial, de los que a la mitad se les asignó aleatoriamente un fijador externo rígido, y a la otra mitad un fijador capaz de suministrar micromovimiento cíclico desde el 1° día posterior a la fractura. Las fracturas sometidas a micromovimiento cíclico precoz tuvieron una curación significativamente más rápida que las que se trataron con fijador rígido.The important contribution of cyclic micromotion to the overall healing process has been irreproachably demonstrated in a clinical study (Kenwright and 1991). This study involved 82 patients with tibial fracture, of which half were randomly assigned a rigid external fixator, and the other half a fixative capable of delivering cyclic micromotion from the 1st day after the fracture. Fractures subjected to early cyclic micromotion had significantly faster healing than those treated with rigid fixative.
- CARGA PROGRESIVA. Se ha demostrado también que el colapso controlado del callo óseo en el punto de factura conduce a una rápida recuperación de la resistencia ósea en grupos de fracturas experimentales tratadas con fijación esquelética externa. Como se ha dicho antes, esta técnica se describió inicialmente como "dinamización" en la literatura científica, pero es radicalmente distinta del micromovimiento cíclico precoz controlado que se ha descrito en el párrafo anterior. El cierre del punto de fractura es resultado de la carga progresiva, y una vez que la ligación del callo óseo calcificado se hace visible a través del punto de fractura, se produce un descenso rápido del micromovimiento cíclico (Richardson y al 1995) . Esta reducción del micromovimiento es lo que permite la supervivencia del osteoblasto en el punto de fractura. Así pues, la carga progresiva contribuye a la maduración del callo óseo externo; se despeja la vía
para la calcificación total del callo óseo y se pone en marcha la tercera fase del proceso de curación.- PROGRESSIVE LOAD. It has also been shown that controlled collapse of bone callus at the point of invoice leads to rapid recovery of bone resistance in groups of experimental fractures treated with external skeletal fixation. As stated before, this technique was initially described as "dynamization" in the scientific literature, but it is radically different from the controlled early cyclic micromotion described in the previous paragraph. The closure of the fracture point is the result of progressive loading, and once ligation of the calcified bone callus becomes visible through the fracture point, a rapid decrease in cyclic micromotion occurs (Richardson and 1995). This reduction in micromotion is what allows osteoblast survival at the fracture point. Thus, the progressive load contributes to the maturation of the external bone callus; the road is cleared for the total calcification of the bone callus and the third phase of the healing process is started.
Si bien las condiciones mecánicas ideales para la remodelación siguen sin conocerse del todo, al parecer es necesaria cierta carga para que el proceso se desarrolle con eficacia, recuperando las propiedades mecánicas normales del hueso.Although the ideal mechanical conditions for remodeling remain unknown, it seems that a certain load is necessary for the process to develop effectively, recovering the normal mechanical properties of the bone.
De Bastiani recomendó que dichaDe Bastiani recommended that said
"dinamización" se llevara a cabo una vez detectada la formación inicial del callo óseo. Su formación como fisiólogo le indicaba que las fuerzas naturales deberían ser beneficiosas una vez que se estuviera formando el callo óseo. Normalmente, la presencia del callo óseo se hacia visible entre 2 y 6 semanas después de la aplicación. Como se ha dicho, aunque esta técnica apareció en la literatura científica como "dinamización", se trataba en realidad de un proceso de carga progresiva en el punto de fractura, con el cierre de la separación de la fractura."dynamization" will be carried out once the initial formation of the bone callus is detected. His training as a physiologist indicated that natural forces should be beneficial once the bone callus was forming. Normally, the presence of bone callus became visible between 2 and 6 weeks after application. As has been said, although this technique appeared in the scientific literature as "dynamization", it was actually a process of progressive loading at the point of fracture, with the closure of the fracture separation.
Asi pues, en el estado actual de la técnica, se tiene el concepto de dinamización tan sólo en los fijadores externos.Thus, in the current state of the art, there is the concept of dynamization only in external fixators.
Por su parte, como fijadores internos se conocen las placas de diseño de tornillo anclado en la placa (Placas de compresión de tornillo bloqueado o también llamadas, según la nomenclatura AO como LCP (Locking Compression Píate) ) , y los clavos intramedulares, consistentes en dispositivos que se colocan en el canal medular del hueso para conferir estabilidad a una fractura. En ambos casos, la dinamización, o lo que se entiende por dinamización, tan sólo consiste en impactar la fractura.
Se hace por tanto necesaria la creación de un sistema de fijación que permita una dinamización de la fijación salvando los inconvenientes anteriormente señalados y aportando las ventajas descritas de tal sistema de curación, siendo este el principal objetivo de la presente invención, sobre la cual, por otra parte, debe señalarse que se desconoce la existencia de ninguna otra que presente unas características técnicas, estructurales y de configuración semejantes.On the other hand, as internal fasteners the screw design plates anchored in the plate are known (Locked Compression Screw Plates or also called, according to the AO nomenclature as LCP (Locking Compression Píate)), and intramedullary nails, consisting of devices that are placed in the medullary canal of the bone to confer stability to a fracture. In both cases, dynamization, or what is meant by dynamization, only consists in impacting the fracture. It is therefore necessary to create a fixing system that allows a dynamization of the fixation saving the aforementioned drawbacks and providing the described advantages of such a healing system, this being the main objective of the present invention, on which, by On the other hand, it should be noted that the existence of no other that has similar technical, structural and configuration characteristics is unknown.
EXPLICACIÓN DE LA INVENCIÓNEXPLANATION OF THE INVENTION
El dispositivo de fijación dinámica interna aplicable a la reparación ósea de fracturas que la invención propone, pues, alcanza satisfactoriamente los objetivos señalados como idóneos, constituyéndose como una destacable novedad dentro de su campo, ya que a tenor de su aplicación se consigue, de forma taxativa dar respuesta eficaz a la carencia planteada que existe en los sistema actuales, estando los detalles caracterizadores que lo hacen posible adecuadamente recogidos en las reivindicaciones finales que acompañan a la presente descripción.The internal dynamic fixation device applicable to bone fracture repair that the invention proposes, therefore, satisfactorily achieves the objectives indicated as suitable, becoming a remarkable novelty within its field, since according to its application it is achieved, so It is essential to provide an effective response to the lack that exists in the current systems, with the characterizing details that make it possible adequately included in the final claims that accompany the present description.
De forma concreta, el dispositivo que se propone consiste en un cuerpo metálico de fijación interna, aplicable mediante correspondientes tornillos de fijación directamente sobre los fragmentos del hueso a reparar, el cual puede consistir tanto en una pletina o placa, de las que se fijan en la superficie del hueso, como en un clavo intramedular, presentando la particularidad de estar configurado mediante dos partes unidas en su zona central a través de un cuerpo flexible con capacidad de recuperación de su posición original, tal como un muelle o similar, el cual aporta
al mencionado cuerpo metálico la capacidad de presentar un cierto grado de movilidad entre ambas partes que permite estimular la recuperación ósea en las fracturas a que se aplique.Specifically, the proposed device consists of a metal internal fixing body, applicable by means of corresponding fixing screws directly on the bone fragments to be repaired, which can consist of both a plate or plate, of which they are fixed in The surface of the bone, as in an intramedullary nail, presenting the particularity of being configured by two parts joined in its central area through a flexible body capable of recovering from its original position, such as a spring or similar, which provides to said metal body the ability to present a certain degree of mobility between both parties that allows to stimulate bone recovery in the fractures to which it is applied.
Con ello, las ventajas que aporta el descrito elemento de la invención son múltiples:With this, the advantages provided by the described element of the invention are multiple:
Eliminar el riesgo de infección inherente a la fijación externa, ya que el implante seria interno al organismo igual que las placas y clavos que existen actualmente en el mercado.Eliminate the risk of infection inherent in external fixation, since the implant would be internal to the organism just like the plates and nails that currently exist in the market.
Apoyo más precoz por parte del enfermo, ya que la idea consiste en dinamizar la fractura mediante la deambulación más temprana.Earlier support from the patient, since the idea is to energize the fracture through earlier ambulation.
Evitar complicaciones por falta de apoyo como es el caso del "SUDEK" por el apoyo más precoz.Avoid complications due to lack of support, such as "SUDEK" due to earlier support.
No ser tan estrictos a la hora de reducir anatómicamente una fractura, ya que usamos el concepto de fijación interna.Not be so strict when anatomically reducing a fracture, since we use the concept of internal fixation.
Evitar la alteración de la circulación perióstica del hueso.Avoid the alteration of the periodic circulation of bone.
Evita tener que retirar el material de osteosintesis si no es preciso, evitando asi una segunda intervención quirúrgica.Avoid having to remove the osteosynthesis material if it is not necessary, thus avoiding a second surgical intervention.
Evitar las cuestiones estéticas y psicológicas derivadas del uso de Fijadores Externos, asi como los cuidados a los que tienen que ser sometidos los enfermos portadores de los mismos.
Disminución del tiempo para reincorporación al ámbito laboral.Avoid the aesthetic and psychological issues arising from the use of External Fixatives, as well as the care to which the patients carrying them must be subjected. Reduction of time to return to work.
El nuevo dispositivo de fijación dinámica interna aplicable a la reparación ósea de fracturas 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 internal dynamic fixation device applicable to bone fracture repair, therefore, represents an innovative structure with structural and constitutive characteristics unknown until now for this purpose, reasons that, together with its practical utility, provide it with sufficient foundation to obtain the exclusivity privilege requested.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características 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:To complement the description that is being made and in order to help a better understanding of the characteristics 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 esquematizada en sección longitudinal de un ejemplo de realización del elemento de fijación dinámica interna aplicable a la reparación ósea de fracturas objeto de la invención en una realización preferida del mismo como clavo endomedular, apreciándose en dicha vista las partes y elementos de que consta el dispositivo así como su forma de fijarse a los fragmentos del hueso.Figure number 1.- Shows a schematic view in longitudinal section of an embodiment example of the internal dynamic fixation element applicable to bone repair of fractures object of the invention in a preferred embodiment thereof as endomedular nail, being seen in said view. the parts and elements of which the device consists as well as its way of fixing the bone fragments.
La figura número 2.- Muestra una vista esquematizada de otro ejemplo de realización del dispositivo de la invención, en este caso, en una variante de realización como placa aplicable a la
superficie externa del hueso,Figure 2 shows a schematic view of another embodiment of the device of the invention, in this case, in a variant embodiment as a plate applicable to the outer surface of the bone,
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 como el dispositivo de fijación dinámica interna aplicable a la reparación ósea de fracturas que la invención preconiza se configura esencialmente a partir de un cuerpo metálico de fijación interna (1), aplicable mediante correspondientes tornillos (2) de fijación directamente sobre los fragmentos (3) y (4) del hueso en que se ha producido la fractura (5) a reparar, en que dicho cuerpo (1) está constituido por dos partes (la) y (Ib), estando cada una de dichas partes fijada a uno de los citados fragmentos (3) y (4) del hueso, y unidas dichas partes (la) y (Ib) por sus extremos en la zona central del cuerpo (1) a través de un cuerpo flexible (6), el cual está realizado con el material y la configuración adecuadas para presentar la necesaria estabilidad y disponer a la vez de la capacidad de recuperación de su posición original, tal como un muelle o similar, aportando, en consecuencia, al cuerpo metálico (1) la capacidad de presentar un cierto grado de movilidad entre las citadas partes (la) y (Ib) que se transmite a los respectivos fragmentosIn view of the aforementioned figures, and in accordance with the numbering adopted, it can be seen in them as the internal dynamic fixation device applicable to bone fracture repair that the invention advocates is essentially configured from a metal fixing body internal (1), applicable by means of corresponding fixing screws (2) directly on the fragments (3) and (4) of the bone in which the fracture (5) to be repaired has occurred, in which said body (1) is constituted by two parts (la) and (Ib), each of said parts being fixed to one of the aforementioned fragments (3) and (4) of the bone, and said parts (la) and (Ib) being joined at their ends in the area central of the body (1) through a flexible body (6), which is made with the appropriate material and configuration to present the necessary stability and at the same time have the ability to recover from its original position, such as a dock or similar, contributing , consequently, to the metallic body (1) the ability to present a certain degree of mobility between said parts (la) and (Ib) that is transmitted to the respective fragments
(3) y (4) a que se hallan fijadas cada una de ellas, permite estimular la recuperación ósea en la zona de la fractura (5) .(3) and (4) to which each one of them is fixed, allows to stimulate bone recovery in the fracture area (5).
Atendiendo a la figura 1, se puede observar como el cuerpo (1) del descrito dispositivo, en una realización preferida de la invención, está configurado como un clavo endomedular, contando sus respectivas partes (la) y (Ib), unidas entre si mediante el
anteriormente descrito cuerpo flexible (6), con sendos tornillos (2) de bloqueo estático y de bloqueo dinámico que las fijan respectivamente a los fragmentos (3) y (4) del hueso roto.According to figure 1, it can be seen how the body (1) of the described device, in a preferred embodiment of the invention, is configured as an endomedular nail, counting their respective parts (la) and (Ib), joined together by he previously described flexible body (6), with two static locking and dynamic locking screws (2) that fix them respectively to the fragments (3) and (4) of the broken bone.
Por su parte, en la figura 2, en otra variante de realización de la invención, se observa como el citado cuerpo metálico (1) conformante del dispositivo está configurado como una placa cuyas respectivas partes (la) y (Ib), unidas entre si mediante el cuerpo flexible (6), se fijan exteriormente a los fragmentos (3) y (4) del hueso roto mediante correspondientes tornillos (2) dotados de sistema de anclaje a la placa.On the other hand, in Figure 2, in another variant embodiment of the invention, it can be seen that said metal body (1) forming the device is configured as a plate whose respective parts (la) and (Ib), joined together by means of the flexible body (6), the fragments (3) and (4) of the broken bone are fixed externally by means of corresponding screws (2) provided with an anchoring system to the plate.
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 titulo 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 implemented 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 is not altered, changed or modified its fundamental principle .
Claims
1.- DISPOSITIVO DE FIJACIÓN DINÁMICA INTERNA APLICABLE A LA REPARACIÓN ÓSEA DE FRACTURAS, del tipo de los destinados a ser implantados internamente, fijado directamente mediante correspondientes tornillos (2), sobre el hueso fracturado para la recuperación de roturas, caracterizado por el hecho de estar esencialmente constituido a partir de un cuerpo metálico (1) constituido por dos partes (la) y (Ib) ; en que dichas partes (la) y (Ib) están unidas entre sí por sus extremos en la zona central del cuerpo (1) a través de un cuerpo flexible (6) , el cual está realizado con el material y la configuración adecuadas para presentar la necesaria estabilidad y disponer a la vez de la capacidad de recuperación de su posición original, tal como un muelle o similar, aportando al cuerpo metálico (1) la capacidad de presentar un cierto grado de movilidad entre las citadas partes (la) y (Ib) .1.- INTERNAL DYNAMIC FIXING DEVICE APPLICABLE TO BONE FRACTURE REPAIR, of the type intended to be implanted internally, fixed directly by means of corresponding screws (2), on the fractured bone for the recovery of tears, characterized by the fact of be essentially constituted from a metal body (1) consisting of two parts (la) and (Ib); wherein said parts (la) and (Ib) are joined together by their ends in the central area of the body (1) through a flexible body (6), which is made with the appropriate material and configuration to present the necessary stability and at the same time have the ability to recover from its original position, such as a spring or similar, providing the metal body (1) with the ability to present a certain degree of mobility between the said parts (the) and ( Ib).
2.- DISPOSITIVO DE FIJACIÓN DINÁMICA INTERNA APLICABLE A LA REPARACIÓN ÓSEA DE FRACTURAS, según la reivindicación 1, caracterizado por el hecho de que el cuerpo metálico (1) consiste en un clavo endomedular.2.- INTERNAL DYNAMIC FIXING DEVICE APPLICABLE TO BONE FRACTURE REPAIR, according to claim 1, characterized in that the metal body (1) consists of an endomedular nail.
3.- DISPOSITIVO DE FIJACIÓN DINÁMICA INTERNA APLICABLE A LA REPARACIÓN ÓSEA DE FRACTURAS, según la reivindicación 1, caracterizado por el hecho de que el cuerpo metálico (1) consiste en una placa. 3.- INTERNAL DYNAMIC FIXING DEVICE APPLICABLE TO BONE FRACTURE REPAIR, according to claim 1, characterized in that the metal body (1) consists of a plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200800141A ES2323663B1 (en) | 2008-01-22 | 2008-01-22 | "INTERNAL DYNAMIC FIXING DEVICE APPLICABLE TO OSEA REPAIR OF FRACTURES". |
| ESP200800141 | 2008-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009092830A1 true WO2009092830A1 (en) | 2009-07-30 |
Family
ID=40852597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2008/000795 WO2009092830A1 (en) | 2008-01-22 | 2008-12-23 | Internal dynamic fastening device applicable to the osseous repair of fractures |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2323663B1 (en) |
| WO (1) | WO2009092830A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9414873B2 (en) | 2012-01-05 | 2016-08-16 | The Cleveland Clinic Foundation | Modular bone fixation system |
| US9414927B2 (en) | 2011-12-08 | 2016-08-16 | Imds Llc | Shoulder arthroplasty |
| US9439768B2 (en) | 2011-12-08 | 2016-09-13 | Imds Llc | Glenoid vault fixation |
| US9788957B2 (en) | 2012-12-07 | 2017-10-17 | Cleveland Clinic Foundation | Glenoid vault fixation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2580821A (en) * | 1950-10-21 | 1952-01-01 | Nicola Toufick | Spring impactor bone plate |
| DE19855254A1 (en) * | 1998-11-30 | 2000-06-08 | Richard Hans Albert | Device for the retention and protection of damaged bones |
| US6551321B1 (en) * | 2000-06-23 | 2003-04-22 | Centerpulse Orthopedics Inc. | Flexible intramedullary nail |
| EP1764051A2 (en) * | 2005-09-19 | 2007-03-21 | HAVITCIOGLU, Hasan | Plate structure for fracture fixation |
| US20070270855A1 (en) * | 2006-04-06 | 2007-11-22 | Lotus Medical, Llc | Active compression to facilitate healing of bones |
-
2008
- 2008-01-22 ES ES200800141A patent/ES2323663B1/en not_active Expired - Fee Related
- 2008-12-23 WO PCT/ES2008/000795 patent/WO2009092830A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2580821A (en) * | 1950-10-21 | 1952-01-01 | Nicola Toufick | Spring impactor bone plate |
| DE19855254A1 (en) * | 1998-11-30 | 2000-06-08 | Richard Hans Albert | Device for the retention and protection of damaged bones |
| US6551321B1 (en) * | 2000-06-23 | 2003-04-22 | Centerpulse Orthopedics Inc. | Flexible intramedullary nail |
| EP1764051A2 (en) * | 2005-09-19 | 2007-03-21 | HAVITCIOGLU, Hasan | Plate structure for fracture fixation |
| US20070270855A1 (en) * | 2006-04-06 | 2007-11-22 | Lotus Medical, Llc | Active compression to facilitate healing of bones |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9414927B2 (en) | 2011-12-08 | 2016-08-16 | Imds Llc | Shoulder arthroplasty |
| US9439768B2 (en) | 2011-12-08 | 2016-09-13 | Imds Llc | Glenoid vault fixation |
| US9414873B2 (en) | 2012-01-05 | 2016-08-16 | The Cleveland Clinic Foundation | Modular bone fixation system |
| US9788957B2 (en) | 2012-12-07 | 2017-10-17 | Cleveland Clinic Foundation | Glenoid vault fixation |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2323663B1 (en) | 2010-05-13 |
| ES2323663A1 (en) | 2009-07-22 |
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