ES2540597A1 - Synthetic surgical mesh (Machine-translation by Google Translate, not legally binding) - Google Patents

Synthetic surgical mesh (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2540597A1
ES2540597A1 ES201331453A ES201331453A ES2540597A1 ES 2540597 A1 ES2540597 A1 ES 2540597A1 ES 201331453 A ES201331453 A ES 201331453A ES 201331453 A ES201331453 A ES 201331453A ES 2540597 A1 ES2540597 A1 ES 2540597A1
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Spain
Prior art keywords
filaments
surgical mesh
synthetic surgical
synthetic
rings
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES201331453A
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Spanish (es)
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ES2540597B1 (en
Inventor
José Tomás Castell Gómez
Mª Teresa CARRASCAL MORILLO
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Universidad Nacional de Educacion a Distancia UNED
Fundacion para la Investigacion Biomedica del Hospital Universitario La Paz
Original Assignee
Universidad Nacional de Educacion a Distancia UNED
Fundacion para la Investigacion Biomedica del Hospital Universitario La Paz
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Priority to ES201331453A priority Critical patent/ES2540597B1/en
Priority to PCT/ES2014/000161 priority patent/WO2015049400A1/en
Publication of ES2540597A1 publication Critical patent/ES2540597A1/en
Application granted granted Critical
Publication of ES2540597B1 publication Critical patent/ES2540597B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B31/00—Crocheting processes for the production of fabrics or articles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
    • A61F2002/0068—Implantable repair or support meshes, e.g. hernia meshes having a special mesh pattern
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene
    • D10B2509/08—Hernia repair mesh

Abstract

The synthetic surgical mesh comprises a fabric made by filaments of a biologically compatible material, characterized in that said filaments are woven into a crochet fabric, of a crochet technique with a central core (4c) and a plurality of concentric rings (4, 4e). ) that delimit concentric circular crown openings (6). Said rings (4c, 4, 4e) are joined together by radial filaments (8) regularly spaced over each of the annular openings (6), together providing a symmetrical structure. It is intended for the repair of hernia defects of the anterior abdominal wall of a patient. (Machine-translation by Google Translate, not legally binding)

Description

MALLA QUIRÚRGICA SINTÉTICA SYNTHETIC SURGICAL MESH

Campo de la invención Field of the Invention

La presente invención se refiere a una malla quirúrgica destinada a implantarse en cuerpos vivos, en particular para la reparación de defectos herniarios de la pared abdominal, más específicamente de la pared abdominal anterior, de un paciente, realizada mediante filamentos sintéticos tejidos de un material biológicamente compatible The present invention relates to a surgical mesh intended to be implanted in living bodies, in particular for the repair of hernia defects of the abdominal wall, more specifically of the anterior abdominal wall, of a patient, made by synthetic filaments woven from a biologically material. compatible

Antecedentes de la invención Background of the invention

Ya se conocen diversos dispositivos del tipo enunciado, destinados a corregir o subsanar la emergencia o irrupción de un cierto tejido fuera de la cavidad en que normalmente debe estar alojado, reteniendo mediante dicha malla o dispositivo el mencionado tejido en la cavidad correspondiente, siendo uno de los casos más corrientes el de una hernia abdominal. Para ello ya existen diversos documentos que dan a conocer una malla o red para los casos citados. Various devices of the stated type are already known, intended to correct or correct the emergence or emergence of a certain tissue outside the cavity in which it should normally be housed, retaining said fabric or device with said fabric in the corresponding cavity, being one of the most common cases of an abdominal hernia. For this, there are already several documents that reveal a mesh or network for the cases cited.

En efecto, se conoce el documento US 2009/0326565 que trata de una malla quirúrgica liviana a base de un tejido de urdimbre de dos peines con un patrón cuadrangular que define una malla descrita como isotrópica, la cual dispone de dos ejes perpendiculares entre sí, y de otros dos ejes perpendiculares entre sí, pero girados entre 302 y 602 respecto al primer par de ejes. En el mismo documento se especifica que los hilos de la urdimbre discurren siguiendo dichos ejes, y que se disponen en paralelo y regularmente espaciados. Indeed, document US 2009/0326565 is known which deals with a lightweight surgical mesh based on a two-comb warp fabric with a quadrangular pattern that defines a mesh described as isotropic, which has two axes perpendicular to each other, and of two other axes perpendicular to each other, but rotated between 302 and 602 with respect to the first pair of axes. In the same document it is specified that the warp threads run along said axes, and that they are arranged in parallel and regularly spaced.

Otro documento, el US 5559273 divulga una tela mallada quirúrgica hexagonal, y describe que el tejido es un tejido de urdimbre a máquina, de doble cara con hilos de monofilamento de polipropileno. Another document, US 5559273 discloses a hexagonal surgical mesh fabric, and describes that the fabric is a double-sided machine-made warp fabric with polypropylene monofilament threads.

Por otra parte, el documento US 2008/0147198, similar al anterior, explica una tela de reposición prostética, a base de una malla quirúrgica ortogonal de patrón uniforme y sistema de tejido a base de disponer de dos direcciones de urdimbre entretejidas, determinando una pluralidad de aberturas poligonales formadas con varios filamentos sobre las que se han extendido un par de filamentos que delimitan unas sub-aberturas. On the other hand, document US 2008/0147198, similar to the previous one, explains a prosthetic replacement fabric, based on an orthogonal surgical mesh of uniform pattern and tissue system based on having two interwoven warp directions, determining a plurality of polygonal openings formed with several filaments on which a pair of filaments that delimit sub-openings have been extended.

y el documento US2012/0304702, por su parte, trata un método para la fabricación de una malla quirúrgica de género de punto, describiendo el sistema de tejido obtenible en una máquina tricotosa rectilínea. and US2012 / 0304702, for its part, discusses a method for the manufacture of a knitted surgical mesh, describing the tissue system obtainable in a straight knitting machine.

La invención propone una nueva arquitectura para la fabricación de una malla quirúrgica especialmente concebida para la corrección de hernias de la pared abdominal con características biomecánicas distintas a las divulgadas en los documentos anteriores. The invention proposes a new architecture for the manufacture of a surgical mesh specially designed for the correction of abdominal wall hernias with biomechanical characteristics different from those disclosed in the previous documents.

Breve descripción de la invención Brief Description of the Invention

Así, a diferencia de los antecedentes citados, a base de mallas con filamentos paralelos en dos o más ejes, y que tienen un comportamiento físico asimétrico, la presente invención aporta una malla quirúrgica que presenta una construcción concéntrica de comportamiento simétrico, lo que favorece una distribución de tensiones homogéneas en la periferia de la malla, que es uno de los puntos débiles de las mallas del estado de la técnica y por donde se producen las recidivas. Dicho comportamiento simétrico está especialmente indicado para las particularidades biomecánicas de la pared abdominal. Thus, unlike the aforementioned background, based on meshes with parallel filaments in two or more axes, and having an asymmetric physical behavior, the present invention provides a surgical mesh that presents a concentric construction of symmetrical behavior, which favors a distribution of homogeneous stresses on the periphery of the mesh, which is one of the weak points of the state of the art meshes and where recurrences occur. Said symmetrical behavior is especially indicated for the biomechanical peculiarities of the abdominal wall.

En efecto, la invención propone una malla quirúrgica sintética, implantable para la reparación de defectos herniarios de la pared abdominal, más específicamente de la pared abdominal anterior, de un paciente realizada mediante filamentos tejidos de un material biológicamente compatible en la cual: In fact, the invention proposes a synthetic, implantable surgical mesh for the repair of hernia defects of the abdominal wall, more specifically of the anterior abdominal wall, of a patient made by means of woven filaments of a biologically compatible material in which:

• •
los citados filamentos que están realizados en un material polimérico biocompatible, irreabsorbible están tejidos formando un tejido de ganchillo es decir de técnica de croché, con una estructura que comprende un núcleo central de sujeción del cuerpo de la malla y una pluralidad de anillos concéntricos que parten de dicho núcleo, alrededor del mismo, delimitando unas aberturas en corona circular concéntricas; y The aforementioned filaments that are made of a biocompatible, non-absorbable polymeric material are woven forming a crochet fabric that is crochet technique, with a structure comprising a central core for holding the body of the mesh and a plurality of concentric rings that start of said core, around it, delimiting concentric circular crown openings; Y

• •
los diferentes anillos están unidos entre sí mediante unos filamentos radiales de conexión, distanciados, que se extienden sobre cada una de las aberturas anulares proporcionando en conjunto una estructura simétrica. the different rings are connected to each other by means of radial connecting filaments, spaced apart, which extend over each of the annular openings, providing together a symmetrical structure.

Esta geometría de la malla de la invención proporciona el citado comportamiento simétrico, regular en toda la extensión de la misma, con una consiguiente distribución de tensiones homogéneas en toda la periferia de la propia malla. This mesh geometry of the invention provides the aforementioned symmetrical behavior, regular throughout its length, with a consequent distribution of homogeneous stresses throughout the periphery of the mesh itself.

En una realización los citados filamentos de material polimérico biocompatible, irreabsorbible están combinados con filamentos de material polimérico reabsorbible, en sí conocido, preferentemente de tipo poliglicólico. In one embodiment, said biocompatible, non-absorbable polymeric filaments are combined with filaments of resorbable polymeric material, known per se, preferably of the polyglycolic type.

Otras características de la invención aparecerán en la descripción que sigue de un ejemplo de realización dado a título ilustrativo y no limitativo. Other features of the invention will appear in the following description of an exemplary embodiment given by way of illustration and not limitation.

Breve descripción de los dibujos Brief description of the drawings

Con el objeto de facilitar la comprensión de dicha descripción, se adjunta una hoja de dibujos en la que: In order to facilitate the understanding of this description, a sheet of drawings is attached in which:

La figura 1 ilustra una vista en planta, en la que se esquematiza el citado ejemplo de la malla quirúrgica que se preconiza. Figure 1 illustrates a plan view, in which the aforementioned example of the surgical mesh is outlined.

y la figura 2 corresponde a un detalle aumentado de la zona central de la anterior figura 1. and figure 2 corresponds to an enlarged detail of the central area of the previous figure 1.

Descripción detallada de la invención Detailed description of the invention

Así pues, según lo ilustrado en dichas figuras se aprecia una malla 2 de contorno circular formada por un tejido de punto constituido por filamentos de un material biológicamente compatible, en particular de un material polimérico biocompatible, irreabsorbible que ha sido seleccionado del grupo de las poliolefinas y es preferentemente polipropileno. Thus, as illustrated in said figures, a circular contour mesh 2 formed by a knitted fabric consisting of filaments of a biologically compatible material, in particular of a biocompatible, non-absorbable polymeric material that has been selected from the group of polyolefins, can be seen. and is preferably polypropylene.

La citada malla 2 presenta un núcleo central de sujeción o soporte que en este ejemplo es anular si bien podría tener otras estructuras en función de la metodología de obtención, del que se van alejando una serie de anillos 4 concéntricos entre sí, distinguiéndose el citado anillo central o núcleo interior 4c y un anillo exterior 4e. The mentioned mesh 2 has a central support or support core that in this example is annular although it could have other structures depending on the methodology of obtaining, from which a series of concentric rings 4 move away from each other, the said ring being distinguished central or inner core 4c and an outer ring 4e.

Dichos anillos concéntricos 4, 4c, 4e tejidos a modo de tejido de ganchillo definen unas aberturas 6 a modo de corona circular concéntricas entre sí. Said concentric rings 4, 4c, 4e woven as a crochet fabric define openings 6 as a circular crown concentric with each other.

Los citados anillos concéntricos 4, 4c, 4e están unidos entre sí mediante filamentos radiales 8 en general regularmente repartidos, dando al conjunto una estructura simétrica y proporcionando una serie de aberturas o poros de la malla. The said concentric rings 4, 4c, 4e are joined together by radial filaments 8 generally distributed generally, giving the assembly a symmetrical structure and providing a series of openings or pores of the mesh.

Cada uno de dichos anillos 4c, 4, 4e integra un alma anular sobre la que se extienden uno o más arrollamientos de los filamentos radiales de conexión. Igualmente los citados filamentos radiales comprenden en general dos o más tramos de filamento entrelazado a los anillos contiguos. Each of said rings 4c, 4, 4e integrates an annular core on which one or more windings of the radial connecting filaments extend. Likewise, said radial filaments generally comprise two or more stretches of filament interwoven to the adjacent rings.

Hay que señalar que, en un principio, tales coronas circulares son equidistantes entre sí, o sea que están separadas entre sí con unas distancias iguales "d", aunque también podrían presentar diferentes distancias entre sí, dando lugar a unas aberturas circulares 6 de distinta anchura. It should be noted that, initially, such circular crowns are equidistant from each other, that is, they are separated from each other with equal distances "d", although they could also have different distances from each other, giving rise to circular openings 6 of different width.

Asimismo, cabe citar que, tanto el anillo interior o estructura de núcleo 4c de la malla 2 como el anillo exterior 4e de la misma son de mayor grosor que los restantes anillos 4 a efectos de garantizar una adecuada resistencia a la estructura. Also, it should be mentioned that both the inner ring or core structure 4c of the mesh 2 and the outer ring 4e thereof are thicker than the remaining rings 4 in order to ensure adequate resistance to the structure.

Opcionalmente habrán líneas radiales de dos filamentos 8p más próximos entre sí que los 5 filamentos contiguos 8, y dichas líneas radiales de filamentos 8p estarán dispuestas según unas angularidades iguales a O distintas. Optionally there will be radial lines of two filaments 8p closer to each other than the 5 adjacent filaments 8, and said radial lines of filaments 8p will be arranged according to different angularities equal to OR.

Tal como se ha indicado y según el presente ejemplo de realización los citados filamentos 8, 8p al igual que los anillos 4, 4c, 4e están constituidos en un material polimérico biocompatible, irreabsorbible seleccionado del grupo de las poliolefinas y que es As indicated and according to the present exemplary embodiment, said filaments 8, 8p as well as rings 4, 4c, 4e are constituted in a biocompatible, non-absorbable polymeric material selected from the group of polyolefins and which is

10 preferentemente polipropileno. 10 preferably polypropylene.

Según la citada realización se ha previsto que el citado material polimérico biocompatible, irreabsorbible, esté combinado con filamentos de material polimérico reabsorbible especialmente indicado para aplicaciones quirúrgicas, seleccionado de entre los poliésteres alifáticos y preferentemente de tipo poliglicólico. According to said embodiment, it is provided that said biocompatible, non-absorbable polymer material is combined with filaments of resorbable polymer material especially indicated for surgical applications, selected from among the aliphatic polyesters and preferably of polyglycolic type.

15 En función del tipo de hernia o de las características del paciente a tratar se ha previsto que la malla pueda tener un tamaño de sus poros variables y a tal efecto en su construcción los distintos anillos pueden estar equidistanciados o no y la red de filamentos radiales también puede presentarse equidistanciada o no y pudiendo presentar una determinada distribución de las distancias inter-filamentos prefijada según las exigencias de la hernia a reparar. 15 Depending on the type of hernia or the characteristics of the patient to be treated, it has been foreseen that the mesh can have a variable pore size and for that purpose in its construction the different rings can be equidistant or not and the network of radial filaments also It may be equidistant or not and may have a certain distribution of the inter-filament distances preset according to the requirements of the hernia to be repaired.

20 Un experto en la materia podría introducir cambios y modificaciones en el ejemplo de realización descrito, sin apartarse del alcance de la invención, según queda definido en las reivindicaciones adjuntas. A person skilled in the art could introduce changes and modifications in the described embodiment, without departing from the scope of the invention, as defined in the appended claims.

Claims (10)

REIVINDICACIONES 1.-Malla quirúrgica sintética, implantable para la reparación de defectos herniarios de la pared abdominal de un paciente realizada mediante filamentos tejidos de un material biológicamente compatible, caracterizado por que 1.-Synthetic, implantable surgical mesh for the repair of hernia defects of the abdominal wall of a patient made using woven filaments of a biologically compatible material, characterized in that
• •
dichos filamentos están tejidos formando un tejido de técnica de croché, con un núcleo central de sujeción del cuerpo de la malla y una pluralidad de anillos concéntricos que parten de dicho núcleo central, alrededor del mismo, delimitando unas aberturas en corona circular concéntricas; y said filaments are woven forming a crochet technique fabric, with a central core holding the mesh body and a plurality of concentric rings starting from said central core, around it, delimiting concentric circular crown openings; Y
• •
dichos anillos están unidos entre sí mediante unos filamentos radiales de conexión, distanciados, que se extienden sobre cada una de las aberturas anulares proporcionando en conjunto una estructura simétrica. said rings are connected to each other by means of radial connecting filaments, spaced apart, which extend over each of the annular openings providing together a symmetrical structure.
2.-Malla quirúrgica sintética, según la anterior reivindicación caracterizada por que el citado filamento está realizado en un material polimérico biocompatible, irreabsorbible. 2.-Synthetic surgical mesh, according to the preceding claim characterized in that said filament is made of a biocompatible, non-absorbable polymeric material. 3.-Malla quirúrgica sintética según la anterior reivindicación caracterizada por que dicho material polimérico biocompatible, irreabsorbible está seleccionado del grupo de las poliolefinas y es preferentemente polipropileno. 3. Synthetic surgical mesh according to the preceding claim characterized in that said biocompatible, non-absorbable polymeric material is selected from the group of polyolefins and is preferably polypropylene. 4.-Malla quirúrgica sintética según la reivindicación 2 o 3, caracterizado porque dicho material polimérico biocompatible irreabsorbible está combinado con filamentos de material polimérico reabsorbible seleccionado de entre los poliésteres alifáticos y preferentemente de tipo poliglicólico. 4. Synthetic surgical mesh according to claim 2 or 3, characterized in that said non-absorbable biocompatible polymeric material is combined with filaments of resorbable polymeric material selected from among the aliphatic polyesters and preferably of the polyglycolic type. 5 .-Malla quirúrgica sintética según la reivindicación 1 caracterizada por que cada uno de los anillos concéntricos integra al menos un alma anular sobre la que se forma uno o más arrollamientos de los citados filamentos radiales de conexión. 5. Synthetic surgical mesh according to claim 1 characterized in that each of the concentric rings integrates at least one annular core on which one or more windings of said radial connection filaments is formed. 6.-Malla quirúrgica sintética según la reivindicación 1, caracterizada por que dichos filamentos radiales comprenden dos o más tramos de filamento entrelazado a los anillos adyacentes. 6. Synthetic surgical mesh according to claim 1, characterized in that said radial filaments comprise two or more stretches of filament interwoven to adjacent rings. 7.-Malla quirúrgica sintética según la reivindicación 1, caracterizada porque los distintos anillos concéntricos están equidistanciados. 7. Synthetic surgical mesh according to claim 1, characterized in that the different concentric rings are equidistant. 8.-Malla quirúrgica sintética según la reivindicación 1, caracterizada porque los distintos anillos concéntricos están distribuidos con al menos dos diferentes distancias entre anillos adyacentes. 8. Synthetic surgical mesh according to claim 1, characterized in that the different concentric rings are distributed with at least two different distances between adjacent rings. 9.-Malla quirúrgica sintética según la reivindicación 7 u 8 caracterizada porque dichos filamentos radiales están regularmente distanciados. 9. Synthetic surgical mesh according to claim 7 or 8, characterized in that said radial filaments are regularly spaced apart. 10.-Malla quirúrgica sintética según la reivindicación 7 u 8 caracterizada porque dichos filamentos radiales no están regularmente distanciados. 10. Synthetic surgical mesh according to claim 7 or 8, characterized in that said radial filaments are not regularly spaced apart.
ES201331453A 2013-10-03 2013-10-03 Synthetic surgical mesh Expired - Fee Related ES2540597B1 (en)

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ES201331453A ES2540597B1 (en) 2013-10-03 2013-10-03 Synthetic surgical mesh
PCT/ES2014/000161 WO2015049400A1 (en) 2013-10-03 2014-10-03 Synthetic surgical mesh

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ES2540597B1 ES2540597B1 (en) 2016-06-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3653171A1 (en) * 2018-11-16 2020-05-20 Sofradim Production Implants suitable for soft tissue repair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2406522A (en) * 2001-03-30 2005-04-06 Mpathy Medical Devices Ltd Mesh implant for hernia repair and tool
US20090204129A1 (en) * 2005-03-22 2009-08-13 Leslie Fronio Bioactive wide-weave mesh

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2406522A (en) * 2001-03-30 2005-04-06 Mpathy Medical Devices Ltd Mesh implant for hernia repair and tool
US20090204129A1 (en) * 2005-03-22 2009-08-13 Leslie Fronio Bioactive wide-weave mesh

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3653171A1 (en) * 2018-11-16 2020-05-20 Sofradim Production Implants suitable for soft tissue repair
US11471257B2 (en) 2018-11-16 2022-10-18 Sofradim Production Implants suitable for soft tissue repair

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WO2015049400A1 (en) 2015-04-09
ES2540597B1 (en) 2016-06-06

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