WO1993008986A1 - Tube renforce par des fils enrobes - Google Patents

Tube renforce par des fils enrobes Download PDF

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Publication number
WO1993008986A1
WO1993008986A1 PCT/US1992/009256 US9209256W WO9308986A1 WO 1993008986 A1 WO1993008986 A1 WO 1993008986A1 US 9209256 W US9209256 W US 9209256W WO 9308986 A1 WO9308986 A1 WO 9308986A1
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WO
WIPO (PCT)
Prior art keywords
plastic
tubing
wire
wire filaments
reinforced tubing
Prior art date
Application number
PCT/US1992/009256
Other languages
English (en)
Inventor
Csaba Truckai
Original Assignee
Csaba Truckai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Csaba Truckai filed Critical Csaba Truckai
Publication of WO1993008986A1 publication Critical patent/WO1993008986A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/127—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers

Definitions

  • This invention relates to a flexible wire-reinforced tubing and fabrication method having improved adhesion characteristics between the wire reinforcement layer and the encasing plastic layer(s).
  • Particular uses of the invention include: medical tubing for catheters, especially guiding catheters adapted for insertion into vascular vessels; and high pressure industrial tubing.
  • a typical construction configuration of reinforced tubing is the three layer sandwich comprising a reinforcement layer encased by a base coat and top coat layer.
  • This three layer sandwich is made by forming or extruding a first plastic layer ("base coat") into a tube over a mandrel.
  • a braided or spirally wound metal wire or oriented plastic filament is then tightly woven over the base coat.
  • a second plastic layer or top coat is then applied as an outer coating and is extruded, heat shrunk or otherwise formed to encase the reinforcement layer.
  • a Luer hub is attached to the proximal end of the tubing for the connection of different accessories.
  • a soft, preferably radiopaque, tubular material is fused to the distal (intra corporeal) end of the reinforced tubing for a less traumatic insertion into the vasculature.
  • Guiding catheters in particular, must be able to transmit high torque for engagement and directional control and have a high inner lumen lubricity for the insertion of secondary devices such as angioplasty and antherectomy devices.
  • the outer diameter dimension is a function of base and top coat width and the type of reinforcement material and braid configuration used. All of these factors must be combined in a way to achieve low kinking characteristics for the tube.
  • the reinforced tubing can also be modified for use in general industrial applications, such as, for example, a high pressure flexible hose, by connectorising one or both ends for easier attachment into the high pressure system.
  • a high performance reinforced tubing for use as a catheter or as an industrial high pressure flexible hose, it is desirable that the reinforcement layer and the encapsulating plastic (top/base coat layers) have the strongest adhesion to each other as possible.
  • a strong adhesion improves the torque transmission of the reinforcing material.
  • a strong adhesion between the encapsulating plastic layers and the reinforcement structure is particularly required, when the wall thickness of the tube is extremely thin.
  • the presently used reinforcing materials are not suitable for such high performance requirements. While it is true that some oriented plastic filaments, such as Kevlar, Si-Carbide or Nylon fibers, have high tensile strength and relatively good adhesion to the surrounding plastic material (top/base coat) , they are prone to kinking since these types of materials have a very low modulus of elasticity. Metal filaments, such as stainless steel, have a high tensile strength and a high elastic modulus, but they too are inadequate since they suffer from poor adhesion to the extruded thermoplastic materials used for encapsulation. Because of their poor adhesion characteristics, the reinforcing metal filaments tend to slip within the plastic encapsulation (top/base coat) and this slippage decreases their torque transmissivity and lowers their capability to withstand increased internal pressures.
  • U.S. Patent No. 4,516,972 issued to Samson discloses a helically wound ribbon of flexible material that is imbedded in the wall of a guiding catheter tube to provide torsional rigidity for facilitating steering and turning of the reinforced tubing.
  • the proposed Kevlar filament is an example of the above described material which has a high tensile strength material and which has relatively good adhesion to the encapsulating plastic materials (top/base coat) , but does not have a high elastic modulus and therefore is prone to kinking.
  • U.S. Patent No. 4,027,659 issued to Slingluff teaches to provide an extruded thermoplastic medical tube with a plastic encapsulated strip of powdered conducting metal formed integral with an exterior wall portion of the tube.
  • Other methods teach to place insulated conducting elements directly into the central lumen or into individual lumens which are created with a multi-lumen extrusion process.
  • the above described techniques are very labor intensive, because the conduits have to be placed individually into the lumens.
  • a major disadvantage with these techniques is that their placement within the tubing uses up valuable space.
  • the prior art industrial and medical spirally wound or braid reinforced tubing requires a relatively thick wall dimension to work adequately.
  • the reinforcement layer have excellent anti-kinking characteristics, a high tensile strength and a high elastic modulus, such as afforded by use of a metal wire reinforcement, and also the reinforced tubing must have an excellent adhesion between its reinforcement layer and its encapsulating plastic tubing layers (top and/or base coat) , such as afforded by a non-metal filament.
  • Fig. 1 is an isometric diagrammatic view displaying a section of an individually coated wire
  • Fig. 1A is an isometric diagrammatic view, displaying an alternate embodiment for an individual coated wire
  • Fig. 2 is a sectioned cut-away isometric view of one embodiment of a coated wire reinforced tubing illustrating the top coat layer, reinforced layer and base coat layer configuration of a three layer sandwich construction;
  • Fig. 3 is a sectioned cut-away isometric view of a second embodiment for the coated wire reinforced tubing of the present invention illustrating the topcoat layer and the reinforcement layer configuration of a two layer sandwich construction;
  • Fig. 4 is a cross-sectional view of a PTFE coated wire reinforced tubing taken along the line and in the direction of the arrows 4-4 of Fig. 3; and Fig. 5 is a cut-away isometric view of another embodiment of the invention showing a coated wire reinforced tubing, wherein the insulated wires are used as electrical conduits.
  • the coating materials used for commercially available coated wire comprise a variety of plastics, including, but not limited to polyurethane, polyester, polyamide, polyimide and polytetroflouroethylene (PTFE, otherwise known by the Dupont trademark, TEFL0N TM ) or a combination of the above.
  • PTFE polytetroflouroethylene
  • a known "liquid coating” technology is used to deposit these materials on the wire in extremely thin layers on the order of .00005".
  • Another characteristic of these coatings is that when properly selected, they provide an extremely good adhesion to the metal wire and to an extruded thermal plastic encapsulation layer which may be placed thereover in forming the tubing structure. This adhesion characteristic creates a unique opportunity to build a more positive and cohesive composite tubular structure.
  • the conventional three layer composite reinforced tubing structure typically comprising a reinforcement layer sandwiched between a top coat layer and a base coat layer, can now be modified to an improved thinner and more cohesive two layer construction comprising only a top coat layer and a coated wire reinforcement layer.
  • the base coat or inner tubing wall layer reduces the inner lumen diameter by at least .004".
  • the total wire coating thickness is no greater than .0004" when the wire coating thickness is .00005" or less.
  • the inside tube diameter can be enlarged by at least .0036". The enlarged inside diameter permits a larger flow rate and increased internal tubing pressures which is desirable for industrial tubing applications.
  • a larger diameter inner lumen permits faster fluid exchange or, in the case of a guiding catheter, a larger diameter inner lumen permits the insertion of larger medical devices such as angioplasty and antherecto y devices.
  • a first embodiment of the coated wire reinforced tubing is constructed by extruding a first plastic tubular member (base coat layer) over a mandrel.
  • the individual coated wires are then formed through a known spiral weaving process into a braided annular configuration which is tightly overlayed onto the base coat layer.
  • a plastic top coat layer is then extruded and is bonded to the braided reinforcing material by a known hot metal adhesive process to complete the composite tube construction.
  • the method steps include forming the individual coated wires directly over a mandrel into a spiral weave or braided reinforcement configuration after which a plastic top coat is extruded thereover as before.
  • the mandrels are removed after the formation of the top coat.
  • the individually coated braiding wires are also used as electrical conduits. This feature is particularly useful for some special catheter uses, such as, for example, for electrode and/or ultrasound catheters, since the electrical conduits are built into the reinforcement layer of the tubing structure, thus obviating the need for additional wiring and insulation.
  • Another advantage offered by this embodiment is the greater number of possible electrical conduits which may be utilized than was heretofore possible with prior art devices.
  • the conventional number of 16 wire filaments are used in the reinforcing braid to insure the adequate mechanical properties of the tube.
  • probes or other electrically operated medical devices can be hooked up to the 16 or more electrically conductive and insulated wires of the reinforcing material.
  • the wire coatings can also be color coded to aid in the identification of the individual conduits.
  • the manufacturing method for the construction of the electrically conductive coated wire embodiment is the same as described above, except that the braided material is selectively stripped of its plastic coating to permit the electrical connections to a desired wire at the desired location adjacent the distal and proximal ends of the tube.
  • the plastic coated wire reinforcement layer forms the inner lumen.
  • the individual wires with a PTFE coating.
  • the PTFE coated reinforcement layer of the present invention has improved lubricity characteristics over a conventional PTFE inner liners of the same inner lumen diameter since the bumps and ridges created in the inner lumen from the PTFE braiding reinforcement layer reduce the total contact surface area so that the inserted medical devices encounter less drag resistance.
  • This method of construction for the tubing embodiment using the PTFE coated braid material involved the formation of a soft, preferably silastic or polyethylene material into a tube structure over a stretchable mandrel.
  • a PTFE coated wire braid configuration is then formed over this soft material in such a way that, during the braiding operation, the tension on the individual filaments is set sufficiently high to embed the PTFE coated wire into the soft material to a predetermined depth.
  • the exposed portions of the braided material are then etched with a known TETRA-ETCH TM solution. In other words, the PTFE coated braid is not etched on those surface areas where it is embedded into the soft material since it is shielded from the etching solution at these surface areas.
  • a plastic topcoat layer is then extruded over this uniquely etched braid reinforcement.
  • the mandrel and the soft inner coating are then removed so that the unetched inner diameter facing surfaces of the PTFE coated wire are exposed.
  • the unetched portion of the braid reinforcement will stand out from the topcoat plastic encapsulation to form a bump or ridge and any object which is pushed through the lumen, such as, for example, an angioplasty balloon catheter, will only have contact with this smaller unetched PTFE surface area. This results in a reduction of the insertion force necessary to overcome inner lumen surface drag.
  • Fig. 1 is an isometric diagrammatic view of a section of the coated wire filament reinforcement material 1 of the present invention.
  • the coated wire filament 1 comprises a core 3 which is encapsulated by a plastic coat or layer 2.
  • the core material 3 is preferably metal, such as commercially available grades of stainless steel wire or nickel alloy, but it is understood that any other ferrous or non-ferrous metal or alloy composition may be used.
  • the cross-sectional configuration of metal core 3 is preferably circular or round, but it is understood that conventional flat wires may also be used in combination with the present invention and thus the cross sectional configuration for the metal core may be square or rectangular (see for example, element la of Fig. 1A) .
  • the metal core 3 may also comprise a braided wire which is plastic encapsulated.
  • Fig. 2 is an isometric view illustrating the application of coated wire 1 of Fig. 1 in combination with one embodiment of the reinforced tubing 7 of the present invention.
  • the reinforced tubing 7 comprises a first inner plastic tubular member or "base coat” layer 5 having an inner lumen 6, a reinforcing layer formed of braided coated wires 1 and an outer plastic tubular member or "top coat” layer 4.
  • the reinforcement layer is disposed almost entirely within the top coat layer 4.
  • the base coat layer 5 is extruded into an elongated tubular member on a conventional fusing mandrel.
  • the outer perimeter surface of the base coat layer 5 may be "roughened" by known chemical treatment means, such as, for example, application of TETRA-ETCH solution, to promote better adhesion to overlaying plastic layers. This roughening step is preferred when the wire coating is PTFE.
  • a braid reinforced plastic tube is then formed by braiding the individual coated wires 1 into a desired braiding configuration over a ductile wire mandrel and then applying the elastomeric plastic top coat layer 4 by a conventional wire coating extrusion apparatus.
  • the wire mandrel serves to support the inside of the tube and prevent it from collapsing, the extruded tube stock is then cut to length and the mandrel is removed.
  • the fusing mandrel along with the prepared inner tubular member i.e., base coat layer 5 is inserted within the extruded tube (top coat layer 4 and wires 1) and bonded together by a heat shrinkable tubular sheet in accordance with hot melt techniques well known by those skilled in the art.
  • the base coat layer 5 may be directly extruded over the fusing mandrel having the prepared inner tubular member thereon.
  • the plastic coating 2 of the coated wire 1 should be selected so as to provide the adhesion possible with both the metal core 3 and to the top coat layer 4. It should be noted that commercially available plastic coated wire intended for use in the electronics industry is ideal for this purpose. By creating a good adhesion between the top coat layer 4 and the coated wire reinforcement layer 1, the base coat layer can be eliminated without sacrificing the mechanical characteristics of the reinforced tubing. This is described below in greater detail with reference to Figs. 3 and 4.
  • the coated wire reinforced tubing of the present invention is particularly well suited for medical tubing applications.
  • the tubing may be incorporated into the tubular body portion of a catheter.
  • the preferred thickness dimension of the metal core 3 of the coated wire should be sufficiently large to provide adequate strength and prevent kinking when formed into the braided reinforcement layer 15.
  • the thickness of the plastic coating 2 is sufficient to completely cover the core and is preferably in the range of about .00005" -
  • the braided coated wire reinforcement layer preferably consists of 16 to 32 strands of stainless steel wires woven in a one-over-one, one-over-two, two-over-one or two-over-two configuration. In the embodiments shown in Figs. 2-4, the braided reinforcement layer consists of 16 stainless steel wires woven in a two-over-two configuration. Each strand may consist of either one wire or a plurality if wires (wire bundle) , but preferably two round cross sectional monofilaments of braided wires. The monofilaments are also of preferably high tensile strength braided wires, woven in a side-by-side fashion. However, it is understood that annealed wires may also be used with equally good results.
  • Fig. 3 is an isometric view illustrating the coated wire 1 of Fig. 1 used in combination with a second embodiment of the reinforced tubing 17 of the present invention.
  • the reinforced tubing 17 comprises only a top coat layer 14 having an inner lumen 16 and a reinforcement layer formed of braided coated wires 1.
  • the radially inward facing surfaces of the coated wires 1 are exposed as certain areas 18 inside the lumen 16. Since the individually plastic coated wires 1 of the reinforcement layer provide excellent adhesion to the top coat layer 14, a base coat layer is unnecessary. The result is a very thin walled reinforced tube 17 which, because of the braided coated wire reinforcement, has superior mechanical characteristics. Also, the improved adhesion permits a thinner extrusion of the top coat layer 14, since the torque transmissivity characteristics of the reinforced tubing 17 are no longer solely dependent upon the thickness of the top coat layer 14.
  • the PTFE coated wire reinforced tubing of the present invention offers a significant advance in lubricity (and enlarged lumen size) over conventional guiding catheters which use a separate PTFE inner liner to promote lumen lubricity.
  • the PTFE coated wires 1 of the reinforcement layer are only partially embedded into the top coat 14.
  • the PTFE coated wires 1 are preferably etched along the embedded surfaces 19.
  • a soft, preferably silastic or polyethylene material is first extruded over a stret ⁇ hable mandrel. Then the PTFE coated wire 1 is formed into a braid over this soft material in such a way that during the braiding operation the tension on the individual filaments is set high enough to partially embed the coated wire 1 into the soft material to a predetermined depth.
  • This embedded area corresponds to the exposed surfaces 18 of Figs. 3 and 4.
  • an etching solution such as TETRA-ETCH TM solution
  • TETRA-ETCH TM solution is applied to treat surface areas 19 of the coated wires 1.
  • the plastic top coat layer 14 is extruded over the etched braid reinforcement.
  • the mandrel and the soft coating on it are then removed, exposing the unetched surfaces 18 of the PTFE coated wires 1. with this technique, the unetched portions 18 of the braid reinforcement will stand out from the top coat plastic encapsulation 14 and any object such as, for example, an angioplasty balloon catheter, may be pushed through the lumen 16 with a reduced insertion force.
  • Fig. 5 shows the cut-away side view of a reinforced tubing 27, where the coated wires 1 serve both as the tubing reinforcement and as individually insulated electrical conduits.
  • the coated wire 1 can be stripped at preselected areas 22 to permit an electrical connection or hook up.
  • the reinforced tubing For some special devices, such as electrode and ultrasound catheters, different sensors or electrical connections are required at different locations of the reinforced tubing.
  • separate insulated conductors are attached to the reinforced tubing wall or are placed within the lumen.
  • the reinforcement can also serve as an electrical conduit. Individual wires can be color coded to further assist in the identification of the desired electrical connection at both ends of the tubing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne un tube flexible renforcé (7) du type pourvu d'une couche de renforcement constituée de fils tressés et disposés à côté d'une ou de plusieurs couches de recouvrement (4; 5) en matière plastique. Les fils individuels (1) de la couche de renforcement sont enrobés de plastique (2) afin qu'il y ait une meilleure adhérence entre la couche de renforcement en fils tressés et les couches de recouvrement en plastique (4; 5). Les fils (1) peuvent être électriquement conducteurs afin de permettre la connexion de dispositifs électriques au niveau de parties dont on a sélectivement enlevé l'enrobage. Dans un mode de réalisation, il n'y a pas de couche de revêtement de base et les fils sont enrobés d'un matériau (18) très glissant, de préférence une polyoléfine polyhalogénée telle que du PTFE ou du KEL-F. Les parties superficielles des fils (1) enrobés de PTFE tournées radialement vers l'intérieur du tube sont laissées à nu dans la cavité tubulaire pour donner un meilleur glissement. Les parties superficielles recouvertes des fils enrobés de PTFE sont sélectivement soumises à une attaque de façon à améliorer l'adhérence avec la couche de recouvrement supérieure (14) qui est extrudée sur lesdits fils.
PCT/US1992/009256 1991-11-08 1992-10-29 Tube renforce par des fils enrobes WO1993008986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78952091A 1991-11-08 1991-11-08
US789,520 1991-11-08

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WO1993008986A1 true WO1993008986A1 (fr) 1993-05-13

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Cited By (23)

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Publication number Priority date Publication date Assignee Title
EP0807444A2 (fr) * 1996-05-13 1997-11-19 Schneider (Usa) Inc. Entrelacs renforçant des cathéters
EP1367094A3 (fr) * 2002-05-29 2004-08-11 Coroplast Fritz Müller GmbH & Co. KG Composition recyclable ne contenant pas d'halogène et câble revêtu de cette composition
EP2492570A1 (fr) * 2011-02-25 2012-08-29 ELAFLEX - Gummi Ehlers GmbH Tuyau flexible avec un raccord de tuyau flexible
WO2013023664A1 (fr) * 2011-08-17 2013-02-21 National Oilwell Varco Denmark I/S Élément d'armature pour tuyau flexible libre
EP2324880A3 (fr) * 2005-04-27 2013-05-22 C.R. Bard, Inc. Appareils de perfuseur avec septum
US8585663B2 (en) 2005-03-04 2013-11-19 C. R. Bard, Inc. Access port identification systems and methods
US8608713B2 (en) 1998-12-07 2013-12-17 C. R. Bard, Inc. Septum feature for identification of an access port
US8652193B2 (en) 2005-05-09 2014-02-18 Angiomed Gmbh & Co. Medizintechnik Kg Implant delivery device
EP2184524A3 (fr) * 2008-11-05 2014-04-02 Masterflex AG Tuyau flexible pouvant être chauffé électriquement
US8932271B2 (en) 2008-11-13 2015-01-13 C. R. Bard, Inc. Implantable medical devices including septum-based indicators
US8939947B2 (en) 2005-03-04 2015-01-27 C. R. Bard, Inc. Systems and methods for radiographically identifying an access port
US8998860B2 (en) 2005-03-04 2015-04-07 C. R. Bard, Inc. Systems and methods for identifying an access port
US9079004B2 (en) 2009-11-17 2015-07-14 C. R. Bard, Inc. Overmolded access port including anchoring and identification features
US9265912B2 (en) 2006-11-08 2016-02-23 C. R. Bard, Inc. Indicia informative of characteristics of insertable medical devices
US9474888B2 (en) 2005-03-04 2016-10-25 C. R. Bard, Inc. Implantable access port including a sandwiched radiopaque insert
US9579496B2 (en) 2007-11-07 2017-02-28 C. R. Bard, Inc. Radiopaque and septum-based indicators for a multi-lumen implantable port
US9603993B2 (en) 2005-03-04 2017-03-28 C. R. Bard, Inc. Access port identification systems and methods
US9642986B2 (en) 2006-11-08 2017-05-09 C. R. Bard, Inc. Resource information key for an insertable medical device
US10307581B2 (en) 2005-04-27 2019-06-04 C. R. Bard, Inc. Reinforced septum for an implantable medical device
US11045634B2 (en) 2017-11-06 2021-06-29 Abiomed, Inc. Peel away hemostasis valve
US11364363B2 (en) 2016-12-08 2022-06-21 Abiomed, Inc. Overmold technique for peel-away introducer design
US11793977B2 (en) 2018-05-16 2023-10-24 Abiomed, Inc. Peel-away sheath assembly
US11890443B2 (en) 2008-11-13 2024-02-06 C. R. Bard, Inc. Implantable medical devices including septum-based indicators

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US4027659A (en) * 1975-11-21 1977-06-07 Krandex Corporation Radiographic opaque and conductive stripped medical tubes
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US4431469A (en) * 1982-09-28 1984-02-14 Niemand Bros. Electrical connection insulator and method of covering an electrical connection therewith
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Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0807444A3 (fr) * 1996-05-13 1998-04-08 Schneider (Usa) Inc. Entrelacs renforçant des cathéters
US6042578A (en) * 1996-05-13 2000-03-28 Schneider (Usa) Inc. Catheter reinforcing braids
US6503353B1 (en) 1996-05-13 2003-01-07 Schneider (Usa) Inc. Method for making a catheter
EP0807444A2 (fr) * 1996-05-13 1997-11-19 Schneider (Usa) Inc. Entrelacs renforçant des cathéters
US8608713B2 (en) 1998-12-07 2013-12-17 C. R. Bard, Inc. Septum feature for identification of an access port
EP1367094A3 (fr) * 2002-05-29 2004-08-11 Coroplast Fritz Müller GmbH & Co. KG Composition recyclable ne contenant pas d'halogène et câble revêtu de cette composition
US8603052B2 (en) 2005-03-04 2013-12-10 C. R. Bard, Inc. Access port identification systems and methods
US10265512B2 (en) 2005-03-04 2019-04-23 Bard Peripheral Vascular, Inc. Implantable access port including a sandwiched radiopaque insert
US10675401B2 (en) 2005-03-04 2020-06-09 Bard Peripheral Vascular, Inc. Access port identification systems and methods
US8585663B2 (en) 2005-03-04 2013-11-19 C. R. Bard, Inc. Access port identification systems and methods
US9474888B2 (en) 2005-03-04 2016-10-25 C. R. Bard, Inc. Implantable access port including a sandwiched radiopaque insert
US10905868B2 (en) 2005-03-04 2021-02-02 Bard Peripheral Vascular, Inc. Systems and methods for radiographically identifying an access port
US11077291B2 (en) 2005-03-04 2021-08-03 Bard Peripheral Vascular, Inc. Implantable access port including a sandwiched radiopaque insert
US10857340B2 (en) 2005-03-04 2020-12-08 Bard Peripheral Vascular, Inc. Systems and methods for radiographically identifying an access port
US10238850B2 (en) 2005-03-04 2019-03-26 Bard Peripheral Vascular, Inc. Systems and methods for radiographically identifying an access port
US10179230B2 (en) 2005-03-04 2019-01-15 Bard Peripheral Vascular, Inc. Systems and methods for radiographically identifying an access port
US9682186B2 (en) 2005-03-04 2017-06-20 C. R. Bard, Inc. Access port identification systems and methods
US8939947B2 (en) 2005-03-04 2015-01-27 C. R. Bard, Inc. Systems and methods for radiographically identifying an access port
US8998860B2 (en) 2005-03-04 2015-04-07 C. R. Bard, Inc. Systems and methods for identifying an access port
US9603992B2 (en) 2005-03-04 2017-03-28 C. R. Bard, Inc. Access port identification systems and methods
US9603993B2 (en) 2005-03-04 2017-03-28 C. R. Bard, Inc. Access port identification systems and methods
US10661068B2 (en) 2005-04-27 2020-05-26 Bard Peripheral Vascular, Inc. Assemblies for identifying a power injectable access port
EP2324880A3 (fr) * 2005-04-27 2013-05-22 C.R. Bard, Inc. Appareils de perfuseur avec septum
EP3884989A3 (fr) * 2005-04-27 2021-10-06 C.R. Bard Inc. Infuseurs et procédés associés
US10780257B2 (en) 2005-04-27 2020-09-22 Bard Peripheral Vascular, Inc. Assemblies for identifying a power injectable access port
EP2324878A3 (fr) * 2005-04-27 2013-05-22 C.R. Bard, Inc. Appareils de perfuseur avec septum
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