EP1432859B1 - Three-dimensional filet stitch fabric wall reinforcement - Google Patents
Three-dimensional filet stitch fabric wall reinforcement Download PDFInfo
- Publication number
- EP1432859B1 EP1432859B1 EP02800633A EP02800633A EP1432859B1 EP 1432859 B1 EP1432859 B1 EP 1432859B1 EP 02800633 A EP02800633 A EP 02800633A EP 02800633 A EP02800633 A EP 02800633A EP 1432859 B1 EP1432859 B1 EP 1432859B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laps
- monofilaments
- walls
- wall
- fabric
- Prior art date
- 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.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
-
- 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
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/023—Fabric with at least two, predominantly unlinked, knitted or woven plies interlaced with each other at spaced locations or linked to a common internal co-extensive yarn system
-
- 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
Definitions
- the invention relates to a useful three-dimensional knitted fabric wall reinforcement, for example in parietal and / or visceral surgery, but which can be applied to other areas of surgery.
- the ply or layers constituting the front wall of the knit is bonded to the ply or plies constituting the rear wall by a brace composed of one or more plies whose meshes taken with the meshes of the front and rear walls are connected by long floats, see WO-A-9 849 967 .
- this or these binding plies increases the density of the knit fabric and tends, if they are made by monofilaments, to reduce the conformability and flexibility of the knitting, even though the parietal repair surgery desires, at the contrary, soft knits, porous and of low mass per unit area.
- the object of the present invention is to provide a wall reinforcement which overcomes these drawbacks and whose knitting has the same characteristics of resistance and elasticity along and across, while improving its flexibility and conformability, without affecting its strength. low density and high porosity.
- the bracing of the plies forming, respectively the front wall and the rear wall of the knit is ensured by the monofilaments of one of the plies constituting one of the walls of the reinforcement, each of these monofilaments forming, after a constant number of rows of stitches in its web, a stitch with one of the stitches of one of the plies of the other wall of the knit.
- one of the two layers constituting the front wall which comprises, at regular intervals, meshes being taken with the stitches of one of the plies of the rear wall, to ensure the connection and the maintenance of the two walls.
- each section of monofilament which extends between the mesh formed in the front wall and the mesh formed in the rear wall ensures excellent holding of these two walls because of its nervousness or rigidity and thus makes it possible to limit the number of meshes forming spacer avoiding to influence the dynamic characteristics of the reinforcement obtained.
- Figure 1 is a partial view, from the side, in transverse section showing a knit bridged by an intermediate web
- Figure 2 is a cross-sectional side view of the fabric according to the invention.
- Figures 3a and 3b represent, for one embodiment of the knit according to the invention, the binding graph of the two plies constituting, respectively, the rear wall and the front wall
- Figure 4 is a front image of a knit according to the invention, taken by scanning electron microscopy with an enlargement of 20.
- the AV and AR mesh columns each schematize the two mesh plies formed, on a Rachel double needle needle loom, by monofilaments of a compatible organic material and, for example, polypropylene monofilaments.
- connection between the front and rear walls is provided by an intermediate web N, forming alternately, every six rows, a mesh m1 on one of the plies of the rear wall of the knit, then a mesh m2 on one of the webs of the front wall, before forming a float F on the next six meshes until the realization of the next mesh m1.
- This figure 1 represents the current structure of the knitted reinforcements and shows that, during the extension of the plies, the long floats F have little possibility of following the elongation movement, and in any case less than a mesh whose loop can closing to make wire, and thus contribute to modify the dynamometric characteristics of the reinforcement.
- the figure 2 which corresponds to the knit according to the invention, shows that the connection of the front and rear rear walls AR is ensured, for example every two columns and all six rows, by one of the monofilaments 2 constituting one of the two sheets of one of the walls and, for example, of the front wall AV, this monofilament coming to form a mesh M on a mesh of one of the two plies constituting the rear wall AR. Thanks to this, and except the sections 2a of monofilament 2 extending between the two walls of the knit, there is no other element, such as floated, between these two walls.
- This knit is made of polypropylene monofilaments having a size of between 0.07 and 0.14 millimeters and, preferably, 0.08 or 0.10 millimeters, dimension combining perfectly fineness, resistance and nervousness.
- the filaments are worked according to an Atlas type armor forming locally a mesh M on some needles of the rear structure, simultaneously with the formation on these m3 mesh needles constituting one of the two plies of the rear wall.
- This armor makes it possible to realize the knitting appearing on the enlargement of the figure 4 or M represents the mesh coming from a web before AV and forming a double mesh with a mesh m3 of one of the plies of the rear wall AR, arranged in the foreground.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Woven Fabrics (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Auxiliary Devices For Music (AREA)
- Medicines Containing Plant Substances (AREA)
- Revetment (AREA)
- Reinforcement Elements For Buildings (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
L'invention est relative à un renfort de paroi en tricot tridimensionnel et ajouré utile, par exemple en chirurgie pariétale et/ou viscérale, mais pouvant être appliqué à d'autres domaines de la chirurgie.The invention relates to a useful three-dimensional knitted fabric wall reinforcement, for example in parietal and / or visceral surgery, but which can be applied to other areas of surgery.
On connaît déjà, par la demande de brevet
En pratique, la ou les nappes constituant la paroi avant du tricot est liée à la ou les nappes constituant la paroi arrière par un entretoisement composé d'une ou plusieurs nappes dont les mailles prises avec les mailles des parois avant et arrière sont reliées par de longs flottés, voir
Il se révèle que, dans ce type de tricot, les flottés de l'entretoisement atténuent les caractéristiques d'élasticité et de résistance, de manière différente dans les deux directions principales, et affectent donc défavorablement l'isoélasticité recherchée.It turns out that, in this type of knitting, the floats of the bracing mitigate the characteristics of elasticity and strength, differently in the two main directions, and thus adversely affect the desired isoelasticity.
De plus, la présence de cette ou de ces nappes de liaison augmente la masse surfacique du tricot et tend, si elles sont réalisées par des monofilaments, à diminuer la conformabilité et la souplesse du tricot, alors même que la chirurgie réparatrice pariétale désire, au contraire, des tricots souples, poreux et de faible masse surfacique.In addition, the presence of this or these binding plies increases the density of the knit fabric and tends, if they are made by monofilaments, to reduce the conformability and flexibility of the knitting, even though the parietal repair surgery desires, at the contrary, soft knits, porous and of low mass per unit area.
La présente invention a pour objet de fournir un renfort de paroi remédiant à ces inconvénients et dont le tricot présente, en long et en travers, les mêmes caractéristiques de résistance et d'élasticité, tout en améliorant sa souplesse et sa conformabilité, sans affecter sa faible densité et sa forte porosité.The object of the present invention is to provide a wall reinforcement which overcomes these drawbacks and whose knitting has the same characteristics of resistance and elasticity along and across, while improving its flexibility and conformability, without affecting its strength. low density and high porosity.
A cet effet, dans le renfort de paroi selon l'invention, l'entretoisement des nappes formant, respectivement la paroi avant et la paroi arrière du tricot, est assuré par les monofilaments de l'une des nappes composant l'une des parois du renfort, chacun de ces monofilaments formant, après un nombre constant de rangées de mailles dans sa nappe, une maille avec l'une des mailles de l'une des nappes de l'autre paroi du tricot.For this purpose, in the wall reinforcement according to the invention, the bracing of the plies forming, respectively the front wall and the rear wall of the knit, is ensured by the monofilaments of one of the plies constituting one of the walls of the reinforcement, each of these monofilaments forming, after a constant number of rows of stitches in its web, a stitch with one of the stitches of one of the plies of the other wall of the knit.
Ainsi, c'est par exemple l'une des deux nappes composant la paroi avant qui comporte, à intervalle régulier, des mailles se prenant avec les mailles de l'une des nappes de la paroi arrière, pour assurer la liaison et le maintien des deux parois.Thus, it is for example one of the two layers constituting the front wall which comprises, at regular intervals, meshes being taken with the stitches of one of the plies of the rear wall, to ensure the connection and the maintenance of the two walls.
Avec cet agencement, non seulement, il n'existe aucune nappe complémentaire entre les nappes formant les parois avant et arrière, mais en plus il n'existe plus de flottés entre ces deux nappes, flottés qui, possédaient une capacité d'allongement plus limitée que la structure maillée obtenue.With this arrangement, not only, there is no complementary ply between the plies forming the front and rear walls, but in addition there are more floats between these two plies, floated which had a capacity of elongation more limited as the mesh structure obtained.
En outre, chaque tronçon de monofilament qui s'étend entre la maille formée dans la paroi avant et la maille formée dans la paroi arrière assure une excellente tenue de ces deux parois en raison de sa nervosité ou rigidité et permet ainsi de limiter le nombre de mailles formant entretoise en évitant d'influencer les caractéristiques dynamiques du renfort obtenu.In addition, each section of monofilament which extends between the mesh formed in the front wall and the mesh formed in the rear wall ensures excellent holding of these two walls because of its nervousness or rigidity and thus makes it possible to limit the number of meshes forming spacer avoiding to influence the dynamic characteristics of the reinforcement obtained.
L'invention sera mieux comprise à l'aide de la description qui suit en référence au dessin schématique annexé représentant une forme de réalisation d'un renfort de paroi tricoté selon l'invention.The invention will be better understood from the description which follows with reference to the attached schematic drawing showing an embodiment of a knitted wall reinforcement according to the invention.
Aux
A la
Bien entendu, cette liaison est réalisée dans différentes colonnes du tricot et, par exemple, toutes les deux colonnes, avec un décalage des rangées dans lesquelles les boucles m1, m2 sont formées.Of course, this connection is made in different columns of the knit and, for example, every two columns, with a shift of the rows in which loops m1, m2 are formed.
Cette
La
Il en résulte que, en cas d'extension et voire même de retour élastique, les structures maillées de chacune des deux parois AV et AR ne sont pas entravées par des fils de flottés, et que les tronçons 2a de liage, disposés transversalement, sont plus à même à suivre les mouvements en tolérant le serrage ou le desserrage des mailles qu'ils relient entre les deux parois.As a result, in the case of extension and even springback, the meshed structures of each of the two walls AV and AR are not hindered by float yarns, and the binding sections 2a, arranged transversely, are more able to follow the movements by tolerating the tightening or loosening of the meshes that they connect between the two walls.
Les
- paroi avant :
- nappe a) 0.1.1.1 /1.2.2.2/3.4.4.4/5.4.4.4/4.3.3.3/2.1.1.1//
- nappe b) 5.4.4.4/4.3.3.3/2.1.1.1/0.1.2.1/1.2.2.2/3.4.4.4//
- paroi arrière :
- nappe c) 4.4.5.4/4.4.4.3/3.3.2.1 /1.1.0.1 /1.1.1.2/2.2.3.4//
- nappe d) 1.1.0.1 /1.1.1.2/2.2.3.4/4.4.5.4/4.4.4.3/3.3.2.1 //
- front wall:
- table a) 0.1.1.1 /1.2.2.2/3.4.4.4/5.4.4.4/4.3.3.3/2.1.1.1//
- sheet b) 5.4.4.4/4.3.3.3/2.1.1.1/0.1.2.1/1.2.2.2/3.4.4.4//
- rear wall :
- water table c) 4.4.5.4/4.4.4.3/3.3.2.1 /1.1.0.1 /1.1.1.2/2.2.3.4//
- sheet d) 1.1.0.1 /1.1.1.2/2.2.3.4/4.4.5.4/4.4.4.3/3.3.2.1 //
Ce tricot est réalisé avec des monofilaments en polypropylène ayant une dimension comprise entre 0,07 et 0,14 millimètre et, de préférence, 0,08 ou 0,10 millimètre, dimension combinant parfaitement finesse, résistance et nervosité. Les filaments sont travaillés suivant une armure de type Atlas formant localement une maille M sur certaines aiguilles de la structure arrière, simultanément à la formation sur ces aiguilles de mailles m3 constituant l'une des deux nappes de la paroi arrière.This knit is made of polypropylene monofilaments having a size of between 0.07 and 0.14 millimeters and, preferably, 0.08 or 0.10 millimeters, dimension combining perfectly fineness, resistance and nervousness. The filaments are worked according to an Atlas type armor forming locally a mesh M on some needles of the rear structure, simultaneously with the formation on these m3 mesh needles constituting one of the two plies of the rear wall.
Cette armure permet de réaliser le tricot apparaissant sur l'agrandissement de la
Cette image montre bien que, grâce aux alvéoles de forme générale polygonale définies par les mailles des différentes nappes le tricot présente une structure ajourée ayant une forte porosité avec une faible densité. Elle montre aussi que, grâce à leur répartition sur les côtés des polygones, les mailles ouvertes non bloquées donnent au tricot sensiblement les mêmes possibilités de déformation en long et en travers, correspondant sur la
Claims (4)
- A three-dimensional open-worked fabric wall reinforcement produced with monofilaments consisting of a biocompatible material, worked in a weave with open unblocked meshes forming, in the laps respectively forming the front and rear walls of the fabric, cells of substantially polygonal shape giving this fabric substantially balanced dynamometric behaviors at least in two perpendicular directions, said laps of the front and rear walls being connected by means of a bracing, characterized in that the bracing is ensured by the monofilaments (2) of one of the laps composing one of the walls (AV and AR) of the reinforcement, each of these monofilaments forming, after a constant number of rows of meshes in its lap, a mesh (M) with one of the meshes (m3) of one of the laps of the other wall (AR and AV) of the fabric.
- The wall reinforcement as claimed in claim 1, characterized in that its respectively front (AV) and rear (AR) walls are each formed by two laps of scale:Front wall:lap a) 0.1.1.1/1.2.2.2/3.4.4.4/5.4.4.4/4.3.3.3/2.1.1.1//lap b) 5.4.4.4/4.3.3.3/2.1.1.1/0.1.2.1/1.2.2.2/3.4.4.4//Rear wall:lap c) 4.4.5.4/4.4.4.3/3.3.2.1/1.1.0.1/1.1.1.2/2.2.3.4//lap d) 1.1.0.1/1.1.1.2/2.2.3.4/4.4.5.4/4.4.4.3/3.3.2.1//
- The wall reinforcement as claimed in claim 2, characterized in that the monofilaments (2) used consist of polypropylene and have a dimension of between 0.07 and 0.14 millimeters.
- The wall reinforcement as claimed in claim 2, characterized in that the monofilaments (2) used consist of polypropylene and have a dimension of 0.10 millimeters.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0112998A FR2830434B1 (en) | 2001-10-05 | 2001-10-05 | THREE-DIMENSIONAL TRICOT WALL REINFORCEMENT AND ADJUSTMENT |
FR0112998 | 2001-10-05 | ||
PCT/FR2002/003397 WO2003031709A1 (en) | 2001-10-05 | 2002-10-04 | Three-dimensional filet stitch fabric wall reinforcement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1432859A1 EP1432859A1 (en) | 2004-06-30 |
EP1432859B1 true EP1432859B1 (en) | 2008-03-12 |
Family
ID=8868096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02800633A Expired - Lifetime EP1432859B1 (en) | 2001-10-05 | 2002-10-04 | Three-dimensional filet stitch fabric wall reinforcement |
Country Status (8)
Country | Link |
---|---|
US (1) | US7021086B2 (en) |
EP (1) | EP1432859B1 (en) |
JP (1) | JP4339116B2 (en) |
AT (1) | ATE389047T1 (en) |
DE (1) | DE60225573T2 (en) |
ES (1) | ES2302868T3 (en) |
FR (1) | FR2830434B1 (en) |
WO (1) | WO2003031709A1 (en) |
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US9981121B2 (en) | 2014-04-28 | 2018-05-29 | Medtronic, Inc. | Implantable medical devices, systems and components thereof |
EP3059255B1 (en) | 2015-02-17 | 2020-05-13 | Sofradim Production | Method for preparing a chitosan-based matrix comprising a fiber reinforcement member |
US11382731B2 (en) | 2015-02-27 | 2022-07-12 | Covidien Lp | Medical devices with sealing properties |
EP3085337B1 (en) | 2015-04-24 | 2022-09-14 | Sofradim Production | Prosthesis for supporting a breast structure |
ES2676072T3 (en) | 2015-06-19 | 2018-07-16 | Sofradim Production | Synthetic prosthesis comprising a knitted fabric and a non-porous film and method of forming it |
EP3195830B1 (en) | 2016-01-25 | 2020-11-18 | Sofradim Production | Prosthesis for hernia repair |
EP3312325B1 (en) | 2016-10-21 | 2021-09-22 | Sofradim Production | Method for forming a mesh having a barbed suture attached thereto and the mesh thus obtained |
US10874768B2 (en) | 2017-01-20 | 2020-12-29 | Covidien Lp | Drug eluting medical device |
EP3398554A1 (en) | 2017-05-02 | 2018-11-07 | Sofradim Production | Prosthesis for inguinal hernia repair |
EP3399084B1 (en) * | 2017-05-02 | 2022-06-29 | Sofradim Production | Method for forming a base knit suitable for manufacturing hernia prostheses |
US20190021730A1 (en) | 2017-07-18 | 2019-01-24 | Covidien Lp | Drug eluting medical device |
US11998654B2 (en) | 2018-07-12 | 2024-06-04 | Bard Shannon Limited | Securing implants and medical devices |
US11478245B2 (en) | 2019-05-08 | 2022-10-25 | Covidien Lp | Surgical stapling device |
US20200352565A1 (en) | 2019-05-08 | 2020-11-12 | Covidien Lp | Surgical stapling device |
US11596403B2 (en) | 2019-05-08 | 2023-03-07 | Covidien Lp | Surgical stapling device |
US20210213157A1 (en) | 2020-01-09 | 2021-07-15 | Ethicon, Inc. | Flexible Gelatin Sealant Dressing with Reactive Components |
US11337699B2 (en) | 2020-04-28 | 2022-05-24 | Covidien Lp | Magnesium infused surgical buttress for surgical stapler |
US20220000480A1 (en) | 2020-07-02 | 2022-01-06 | Covidien Lp | Surgical stapling device |
US20220023488A1 (en) | 2020-07-21 | 2022-01-27 | Ethicon, Inc. | Sealant Dressing with Removable Intermediate Separating Layer |
US20220062492A1 (en) | 2020-08-31 | 2022-03-03 | Ethicon, Inc. | Sealant Dressing with Protected Reactive Components |
WO2023164113A1 (en) | 2022-02-24 | 2023-08-31 | Covidien Lp | Surgical medical devices |
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Publication number | Priority date | Publication date | Assignee | Title |
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US3124136A (en) * | 1964-03-10 | Method of repairing body tissue | ||
US3118294A (en) * | 1964-01-21 | Method for manufacturing knitted nets and products | ||
US5771716A (en) * | 1995-09-18 | 1998-06-30 | Schlussel; Edward | Warp-knitted loop net fabric |
WO1998014134A2 (en) * | 1996-10-04 | 1998-04-09 | Ethicon, Inc. | Knitted surgical mesh |
US6120539A (en) * | 1997-05-01 | 2000-09-19 | C. R. Bard Inc. | Prosthetic repair fabric |
FR2779937B1 (en) * | 1998-06-23 | 2000-08-11 | Sofradim Production | ADJUSTED ISOELASTIC PROSTHETIC FABRIC |
CN1210451C (en) * | 1998-10-14 | 2005-07-13 | 旭土建株式会社 | 3-D structure net and composite material using the net |
DE19942611C1 (en) * | 1999-08-31 | 2001-07-05 | Ethicon Gmbh | Reinforced flat implant |
US6477865B1 (en) * | 1999-12-16 | 2002-11-12 | Asahi Doken Kabushiki Kaisha | Three-dimensional marquisette style knitted fabric |
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2001
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- 2002-10-04 DE DE60225573T patent/DE60225573T2/en not_active Expired - Lifetime
- 2002-10-04 ES ES02800633T patent/ES2302868T3/en not_active Expired - Lifetime
- 2002-10-04 EP EP02800633A patent/EP1432859B1/en not_active Expired - Lifetime
- 2002-10-04 WO PCT/FR2002/003397 patent/WO2003031709A1/en active IP Right Grant
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US7021086B2 (en) | 2006-04-04 |
ES2302868T3 (en) | 2008-08-01 |
DE60225573D1 (en) | 2008-04-24 |
JP4339116B2 (en) | 2009-10-07 |
JP2005504900A (en) | 2005-02-17 |
ATE389047T1 (en) | 2008-03-15 |
WO2003031709A1 (en) | 2003-04-17 |
FR2830434A1 (en) | 2003-04-11 |
US20050252569A1 (en) | 2005-11-17 |
DE60225573T2 (en) | 2009-04-02 |
EP1432859A1 (en) | 2004-06-30 |
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