The disclosure relates to assemblies of thin-walled tubes and mandrels for use in thin wall catheter liners. For example, an assembly is provided that includes a thin-walled PTFE tube comprising walls with a thickness of less than 0.004 inches, positioned over a filled mandrel comprising PTFE with one or more fillers incorporated therein. The disclosure further provides, independently, thin-walled tubes and filled mandrels, as well as methods of making and using such components.
B29C 53/38 - Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 63/10 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
The disclosure generally relates to ultra high molecular weight poly (ethylene) (“UHMWPE”) tubes with an average wall thickness of 0.2 mm or less; a tensile stress at break greater than 40 MPa; and a storage modulus of greater than 500 MPa at 23° C. The disclosure further relates to preparing and using such tubes and to constructions (e.g., catheter constructions) and components thereof including such tubes.
The disclosure provides tubes comprising ultra high molecular weight poly(ethylene) (UHMWPE). Such tubes can have thin walls and be suitable for applications, e.g., as catheter liners. Methods for preparing such tubes include dip coating a core into a dispersion comprising the UHMWPE, where the dispersion advantageously further comprises an eco-friendly solvent and can optionally include one or more additional components (e.g., fillers and/or other polymers).
Expanded polytetrafluoroethylene (ePTFE) tubings are provided with a thermoplastic tie layer coating on the outer surface thereof to serve, e.g., as flexible liners for catheters. The thermoplastic tie layer coating can be anchored into the pores of the ePTFE but advantageously does not permeate through to the inner surface of the tubing. In this way, the outer surface of the tubing can adhere to an outer jacket material while the inner surface of the tubing remains lubricious.
Polymeric coated optical elements are described herein, which exhibit good optical properties, e.g., low attenuation. Some such coated optical elements comprise an optical element (e.g., an optical fiber) having an outer surface and a thermoplastic polymeric tight buffer coating on at least a portion of the outer surface of the optical element, wherein the polymer-coated optical element exhibits a first attenuation at room temperature of plus or minus about 50% the attenuation of a comparable optical element with no thermoplastic polymeric tight buffer coating thereon, and a second attenuation at room temperature after thermal cycling to a temperature of at least 170° C. that is about 2 times the first attenuation or less.
The disclosure provides coated tubings, including a layer of PEBA (or other polymer) on an etched polymeric tubing. The layer of PEBA (or other polymer) can have a low thickness, e.g., less than 1 micron and can provide for efficient bonding to an overlying jacket layer. The disclosure further provides methods of making and using such coated tubings.
The present disclosure provides composite prosthetic devices comprising two or more layers of electrospun polymers and methods of preparation thereof. In some embodiments, the two or more layers can be porous and in other embodiments, one or more components is nonporous. The composite prosthetic devices can comprise various materials and the properties of the prosthetic devices can be tailored for use in a range of different applications.
A61F 2/00 - Filters implantable into blood vesselsProstheses, i.e. artificial substitutes or replacements for parts of the bodyAppliances for connecting them with the bodyDevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
A non-crosslinked polymeric heat shrink tubing including poly (ether-block-amide) (PEBA) and methods for making such non-crosslinked polymeric heat shrink tubing is provided. The non-crosslinked PEBA heat shrink tubing disclosed herein finds application, e.g., as a processing aid and final component in the manufacture of catheters and other medical devices. When utilized as an outer jacket of a laser-cut hypotube, the non-crosslinked PEBA heat shrink tubing can advantageously not considerably infiltrate the kerfs of the underlying laser-cut hypotube.
B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
B29K 105/02 - Condition, form or state of moulded material heat-shrinkable
The present disclosure provides a dual layer heat shrink tube having: an inner polymeric layer and an outer polymeric layer. The disclosure further provides associated methods for preparing and using such tubes, as well as to products comprising such tubes.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
The present disclosure provides a dual layer heat shrink tube having: an inner polymeric layer with a thickness t1 and an outer diameter D1; and an outer, expanded polymeric layer with a thickness t2′ and an outer diameter D2′ obtained by expanding a polymer tube from D2 to D2′ and t2 to t2′ at a selected temperature so that D2′-2 (t2′)>D1, wherein a ring cut from a cross-section of the dual layer heat shrink tube, slit into a rectangle and gripped at cut ends by tension grips within a DMA, and subjected to a temperature sweep of 3° C./min at a frequency of 1 Hz from the onset of a melting endotherm of the inner polymeric layer to that of the outer, expanded polymeric layer is greater than 1° C. and less than 12° C. The disclosure further provides associated methods for preparing and using such tubes, as well as to products comprising such tubes.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
The present application relates generally to tubes, such as thin walled catheter liners with small wall thicknesses (e.g., less than 1 mm), including crosslinked fluoropolymers, e.g., crosslinked poly(tetrafluoroethylene). The disclosure further provides methods of manufacturing such tubes and systems for manufacturing such tubes.
Methods for preparing oriented polymer tubes, such as biodegradable polymer tubes suitable for in vivo use, are provided herein. The disclosed methods provide alternatives to the typical extrusion/expansion methods by which oriented polymeric tubes for such uses are commonly produced. Advantageously, the disclosed methods can provide more homogeneous molecular orientation of crystallizable polymers within the tube walls, which can endow such polymeric tubes with enhanced strength (e.g., resistance to compression) and toughness.
Polymeric coated optical elements are described herein, which exhibit good optical properties, e.g., low attenuation. Some such coated optical elements comprise an optical element (e.g., an optical fiber) having an outer surface and a thermoplastic polymeric tight buffer coating on at least a portion of the outer surface of the optical element, wherein the polymer-coated optical element exhibits a first attenuation at room temperature of plus or minus about 50% the attenuation of a comparable optical element with no thermoplastic polymeric tight buffer coating thereon, and a second attenuation at room temperature after thermal cycling to a temperature of at least 170° C. that is about 2 times the first attenuation or less.
A non-crosslinked polymeric heat shrink tubing including poly(ether-block-amide) (PEBA) and methods for making such non-crosslinked polymeric heat shrink tubing is provided. The non-crosslinked PEBA heat shrink tubing disclosed herein finds application, e.g., as a processing aid and final component in the manufacture of catheters and other medical devices.
B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
B29K 105/02 - Condition, form or state of moulded material heat-shrinkable
The present disclosure provides extruded PTFE composite tubes with a reduced coefficient of friction (COF). In some embodiments, such extruded PTFE composite tubes may exhibit a reduced change in coefficient of friction between about 20° C. and about 40° C. with the inclusion of secondary polymeric particles with small particle sizes (<100 μm) at loading percentages of less than about 50 weight %.
The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 μm to about 30 μm and a specific surface area (SSA) of at least about 3.0 m2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.
A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.
A non-crosslinked polymeric heat shrink tubing including poly(ether-block-amide) (PEBA) and methods for making such non-crosslinked polymeric heat shrink tubing is provided. The non-crosslinked PEBA heat shrink tubing disclosed herein finds application, e.g., as a processing aid and final component in the manufacture of catheters and other medical devices.
B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
B29K 105/02 - Condition, form or state of moulded material heat-shrinkable
The disclosure generally relates to ultra high molecular weight poly(ethylene) (“UHMWPE”) tubes with an average wall thickness of 0.2 mm or less; a tensile stress at break greater than 40 MPa; and a storage modulus of greater than 500 MPa at 23° C. The disclosure further relates to preparing and using such tubes and to constructions (e.g., catheter constructions) and components thereof including such tubes.
The disclosure provides tubes comprising ultra high molecular weight poly(ethylene) (UHMWPE). Such tubes can have thin walls and be suitable for applications, e.g., as catheter liners. Methods for preparing such tubes include dip coating a core into a dispersion comprising the UHMWPE, where the dispersion advantageously further comprises an eco-friendly solvent and can optionally include one or more additional components (e.g., fillers and/or other polymers).
A radiopaque lined heat shrinkable tubing is disclosed. A non-limiting example of a radiopaque lined heat shrinkable tubing is a multilayer construction having an inner layer and an outer layer, wherein the inner layer includes a thermoplastic that is highly loaded with a radiopaque filler, and the outer layer includes a fluoropolymer heat shrink tube.
A61L 29/12 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
The disclosure provides tubes including a blend of two or more polyethylenes. For example, the blend can comprise at least 80% by weight of one or more of LLDPE, LDPE, MDPE, and HDPE, and no more than 20% by weight of UHMWPE. Such tubes can have low average wall thicknesses, e.g., 0.1 mm or less, rendering them suitable for use as catheter liners.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
Polymer optical fibers (POFs) including a polyamide core are described herein. The polyamide cores generally include one or more nylon polymers and are microcrystalline. The described POFs can have an operating temperature exceeding 150° C. and a calculated numerical aperture of 0.6 or greater.
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
A heat shrink tubing is provided exhibiting various desirable properties, which generally comprises at least one fluorinated polymeric resin. The tubing can exhibit desirable physical properties such as heat shrink capability, high expansion/recovery ratio, low longitudinal shrinkage, low temperature recovery, and an average wall thickness of less than about 0.003 inches.
F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics
F16L 11/12 - 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
A heat shrink tubing is provided exhibiting various desirable properties, which generally comprises at least one fluorinated polymeric resin. The tubing can exhibit desirable physical properties such as heat shrink capability, high expansion/recovery ratio, low longitudinal shrinkage, low temperature recovery, and an average wall thickness of less than about 0.003 inches.
A heat shrink tubing is provided exhibiting various desirable properties, which generally comprises at least one fluorinated polymeric resin. The tubing can exhibit desirable physical properties such as heat shrink capability, high expansion/recovery ratio, low longitudinal shrinkage, low temperature recovery, and an average wall thickness of less than about 0.003 inches.
F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics
F16L 11/12 - 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
The present application relates generally to tubes, such as thin walled catheter liners with small wall thicknesses (e.g., less than 1 mm), including crosslinked fluoropolymers, e.g., crosslinked poly(tetrafluoroethylene). The disclosure further provides methods of manufacturing such tubes and systems for manufacturing such tubes.
The disclosure relates to assemblies of thin-walled tubes and mandrels for use in thin wall catheter liners. For example, an assembly is provided that includes a thin-walled PTFE tube comprising walls with a thickness of less than 0.004 inches, positioned over a filled mandrel comprising PTFE with one or more fillers incorporated therein. The disclosure further provides, independently, thin-walled tubes and filled mandrels, as well as methods of making and using such components.
The disclosure relates to assemblies of thin-walled tubes and mandrels for use in thin wall catheter liners. For example, an assembly is provided that includes a thin-walled PTFE tube comprising walls with a thickness of less than 0.004 inches, positioned over a filled mandrel comprising PTFE with one or more fillers incorporated therein. The disclosure further provides, independently, thin-walled tubes and filled mandrels, as well as methods of making and using such components.
B29C 53/38 - Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29C 63/10 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Custom assembly of products for others; custom manufacture
of catheters, and balloons and parts for catheters;
prototype fabrication of new products for others. Engineering design services; new product design services;
product development.
The present disclosure provides modified polymeric thin-walled tubes with one or more conductive pathways along at least a part of a length or a circumference of the polymeric tube, suitable for use as liners in catheter construction. The one or more conductive pathways are formed of a conductive ink and are on a surface of the polymeric tube and not embedded within the walls of the tube.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Custom assembly of products for others; custom manufacture of catheters, and balloons and parts for catheters; prototype fabrication of new products for others.
(2) Engineering design services; new product design services; product development.
Methods for preparing oriented polymer tubes, such as biodegradable polymer tubes suitable for in vivo use, are provided herein. The disclosed methods provide alternatives to the typical extrusion/expansion methods by which oriented polymeric tubes for such uses are commonly produced. Advantageously, the disclosed methods can provide more homogeneous molecular orientation of crystallizable polymers within the tube walls, which can endow such polymeric tubes with enhanced strength (e.g., resistance to compression) and toughness.
The present disclosure provides extruded PTFE composite tubes with a reduced coefficient of friction (COF). In some embodiments, such extruded PTFE composite tubes may exhibit a reduced change in coefficient of friction between about 20° C. and about 40° C. with the inclusion of secondary polymeric particles with small particle sizes (<100 μm) at loading percentages of less than about 50 weight %.
1, wherein a ring cut from a cross-section of the dual layer heat shrink tube, slit into a rectangle and gripped at cut ends by tension grips within a DMA, and subjected to a temperature sweep of 3° C./min at a frequency of 1 Hz from the onset of a melting endotherm of the inner polymeric layer to that of the outer, expanded polymeric layer is greater than 1° C. and less than 12° C. The disclosure further provides associated methods for preparing and using such tubes, as well as to products comprising such tubes.
B29C 61/06 - Making preforms having internal stresses, e.g. plastic memory
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 µm to about 30 µm and a specific surface area (SSA) of at least about 3.0 m /g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.
B29B 9/02 - Making granules by dividing preformed material
B01J 2/02 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
B29B 9/10 - Making granules by moulding the material, i.e. treating it in the molten state
The present disclosure provides extruded PTFE composite tubes with a reduced coefficient of friction (COF). In some embodiments, such extruded PTFE composite tubes may exhibit a reduced change in coefficient of friction between about 20°C and about 40°C with the inclusion of secondary polymeric particles with small particle sizes (<100 µm) at loading percentages of less than about 50 weight %.
The present disclosure provides a dual layer heat shrink tube having: an inner polymeric layer with a thickness t1 and an outer diameter D1; and an outer, expanded polymeric layer with a thickness t2' and an outer diameter D2' obtained by expanding a polymer tube from D2 to D2' and t2 to t2' at a selected temperature so that D2' - 2(t2') > D1, wherein a ring cut from a cross-section of the dual layer heat shrink tube, slit into a rectangle and gripped at cut ends by tension grips within a DMA, and subjected to a temperature sweep of 3°C/min at a frequency of 1 Hz from the onset of a melting endotherm of the inner polymeric layer to that of the outer, expanded polymeric layer is greater than 1°C and less than 12°C. The disclosure further provides associated methods for preparing and using such tubes, as well as to products including such tubes.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
39.
Microparticles from thermomechanically degraded PTFE
2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Assembly of products for others; Custom manufacture of catheters, and balloons and parts for catheters; Prototype fabrication of new products for others Engineering design services; New product design services; Product development
The present disclosure provides insulated electrical conductors, e.g., wires, and methods for producing such insulated electrical conductors to combat partial discharge by enhancing bond strength between the electrical conductor and a base insulating thermoplastic layer (e.g., including a PAEK). Such insulated electrical conductors can include: an electrical conductor; an insulating coating on at least a portion of a surface of the electrical conductor; and an oxide layer between the electrical conductor and the insulating coating. Methods for producing such insulated electrical conductors can involve extrusion of an insulating polymer onto the electrical conductor under ambient atmosphere and a subsequent heat treatment step, which can also be conducted under ambient atmosphere.
H01B 3/10 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
H01B 13/14 - Insulating conductors or cables by extrusion
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyestersInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyethersInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyacetals
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Flexible metal tubing incorporating layers of polymeric
material. Polymer optical fiber; polymer reinforced optical fibers;
optical fibers; copper wire, insulated; magnet wire, namely,
copper or aluminum wire covered with thin insulation for use
in the manufacture of electric and electronic apparatus. Flexible tubing of polymeric material; flexible polymeric
tubing incorporating one or more metallic layers;
multi-purpose thermoplastic heat shrinkable tubing; plastic
fibers, not for textile use; semi-processed plastics in the
form of monofilament; polymeric material in extruded form
for use in manufacture; polymeric material comprised of
electrospun polymer strands for use in manufacture. Custom manufacturing of tubing; custom manufacturing of
coated wire; treatment of materials in the nature of tubing
and wire; treatment of materials, namely, application of
heat-shrink tubing to wire and mandrels; treatment of
materials, namely, coating of wire and mandrels with a
liquid polymer that is cured with heat; laminating of
electrospun fibers. Research and development in the field of polymers for use in
products; testing, analysis and evaluation for others of
polymers; process development in the field of polymers for
others.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Flexible tubing of polymeric material for use in manufacture, not being building construction materials; flexible polymeric tubing incorporating one or more metallic layers for use in manufacture, not being building construction materials; multi-purpose thermoplastic heat shrinkable tubing not being building construction materials; plastic fibers, not for textile use; semi-processed plastics in the form of monofilament; polymeric material in extruded form for use in manufacture; polymeric material comprised of electrospun polymer strands for use in manufacture.
(2) Flexible metal tubing incorporating layers of polymeric material for use in manufacture, not being building construction materials
(3) Polymer optical fiber; polymer reinforced optical fibers; optical fibers; copper wire, insulated
(4) Magnet wire, namely, copper or aluminum wire covered with thin insulation for use in the manufacture of electric and electronic apparatus. (1) Research and development in the field of polymers for use in products; testing, analysis and evaluation for others of polymers; process development in the field of polymers for others.
(2) Custom manufacturing of tubing, namely metal tubing incorporating layers of polymeric material, tubing of polymeric material, polymeric tubing incorporating one or more metallic layers, multi-purpose thermoplastic heat shrinkable tubing; custom manufacturing of coated wire; treatment of materials in the nature of tubing and wire, namely plasma etching of polymeric tubing, coating of wire with one or more exterior polymeric layers, application of conductive coatings to polymeric tubing, application of colored inks to polymeric tubing; treatment of materials, namely, application of heat-shrink tubing to wire and mandrels; treatment of materials, namely, coating of wire and mandrels with a liquid polymer that is cured with heat; laminating of electrospun fibers
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Flexible metal tubing incorporating layers of polymeric
material. Polymer optical fiber; polymer reinforced optical fibers;
optical fibers; copper wire, insulated; magnet wire, namely,
copper or aluminum wire covered with thin insulation for use
in the manufacture of electric and electronic apparatus. Flexible tubing of polymeric material; flexible polymeric
tubing incorporating one or more metallic layers;
multi-purpose thermoplastic heat shrinkable tubing; plastic
fibers, not for textile use; semi-processed plastics in the
form of monofilament; polymeric material in extruded form
for use in manufacture; polymeric material comprised of
electrospun polymer strands for use in manufacture. Custom manufacturing of tubing; custom manufacturing of
coated wire; treatment of materials in the nature of tubing
and wire; treatment of materials, namely, application of
heat-shrink tubing to wire and mandrels; treatment of
materials, namely, coating of wire and mandrels with a
liquid polymer that is cured with heat; laminating of
electrospun fibers. Research and development in the field of polymers for use in
products; testing, analysis and evaluation for others of
polymers; process development in the field of polymers for
others.
The present disclosure provides insulated electrical conductors, e.g., wires, and methods for producing such insulated electrical conductors to combat partial discharge by enhancing bond strength between the electrical conductor and a base insulating thermoplastic layer (e.g., including a PAEK). Such insulated electrical conductors can include: an electrical conductor; an insulating coating on at least a portion of a surface of the electrical conductor; and an oxide layer between the electrical conductor and the insulating coating. Methods for producing such insulated electrical conductors can involve extrusion of an insulating polymer onto the electrical conductor under ambient atmosphere and a subsequent heat treatment step, which can also be conducted under ambient atmosphere.
H01B 3/10 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
The present disclosure provides insulated electrical conductors, e.g., wires, and methods for producing such insulated electrical conductors to combat partial discharge by enhancing bond strength between the electrical conductor and a base insulating thermoplastic layer (e.g., including a PAEK). Such insulated electrical conductors can include: an electrical conductor; an insulating coating on at least a portion of a surface of the electrical conductor; and an oxide layer between the electrical conductor and the insulating coating. Methods for producing such insulated electrical conductors can involve extrusion of an insulating polymer onto the electrical conductor under ambient atmosphere and a subsequent heat treatment step, which can also be conducted under ambient atmosphere.
H01B 3/10 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
H01B 13/14 - Insulating conductors or cables by extrusion
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyestersInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyethersInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyacetals
40 - Treatment of materials; recycling, air and water treatment,
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Custom manufacturing of tubing; Custom manufacturing of coated wire; Treatment of materials in the nature of tubing and wire; Treatment of materials, namely, application of heat-shrink tubing to wire and mandrels; Treatment of materials, namely, coating of wire and mandrels with a liquid polymer that is cured with heat; Laminating of electrospun fibers Magnet wire, namely, copper or aluminum wire covered with thin insulation for use in the manufacture of electric and electronic apparatus; Flexible metal tubing incorporating layers of polymeric material Polymer optical fiber; Polymer reinforced optical fibers; Optical fibers; Copper wire, insulated Flexible tubing of polymeric material; Flexible polymeric tubing incorporating one or more metallic layers; Multi-purpose thermoplastic heat shrinkable tubing; Plastic fibers, not for textile use; Semi-processed plastics in the form of monofilament
The present disclosure provides catheters comprising polytetrafluoroethylene (PTFE) tubes with advantageous combinations of strength, flexibility, and size. Such tubes can exhibit features including an average wall thickness of 0.001" or less, a tensile stress at break of greater than 5000 psi, and a storage modulus of less than 100,000 psi at all temperatures between and including 21°C and 37 °C. These tubes can be also be provided independently (i.e., not within a catheter) and can be employed in various applications.
The present disclosure provides modified polymeric thin-walled tubes with one or more conductive pathways along at least a part of a length or a circumference of the polymeric tube, suitable for use as liners in catheter construction. The one or more conductive pathways are formed of a conductive ink and are on a surface of the polymeric tube and not embedded within the walls of the tube.
The present disclosure provides catheters comprising polytetrafluoroethylene (PTFE) tubes with advantageous combinations of strength, flexibility, and size. Such tubes can exhibit features including an average wall thickness of 0.001″ or less, a tensile stress at break of greater than 5000 psi, and a storage modulus of less than 100,000 psi at 37° C. These tubes can be also be provided independently (i.e., not within a catheter) and can be employed in various applications.
Methods for preparing oriented polymer tubes, such as biodegradable polymer tubes suitable for in vivo use, are provided herein. The disclosed methods provide alternatives to the typical extrusion/expansion methods by which oriented polymeric tubes for such uses are commonly produced. Advantageously, the disclosed methods can provide more homogeneous molecular orientation of crystallizable polymers within the tube walls, which can endow such polymeric tubes with enhanced strength (e.g., resistance to compression) and toughness.
A method for preparing blends of at least two polymer components is described herein. The disclosed method generally involves controlling relative molecular weights and ratios of the two or more polymer components by selecting a first initiator, a second initiator, and a monomer, and subjecting the reactants to conditions suitable to polymerize the monomer based at least in part on the first and second initiators in connection with obtaining the polymeric blend. The second initiator is advantageously selected based on one or more characteristics associated therewith, based on a characteristic of the first initiator. A polymeric blend produced according to such a method is also provided herein.
C08L 57/00 - Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
G01N 25/48 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
G01N 30/00 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolyrneric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.
Polymeric coated optical elements are described herein, which exhibit good optical properties, e.g., low attenuation. Some such coated optical elements comprise an optical element (e.g., an optical fiber) having an outer surface and a thermoplastic polymeric tight buffer coating on at least a portion of the outer surface of the optical element, wherein the polymer-coated optical element exhibits a first attenuation at room temperature of plus or minus about 50% the attenuation of a comparable optical element with no thermoplastic polymeric tight buffer coating thereon, and a second attenuation at room temperature after thermal cycling to a temperature of at least 170° C. that is about 2 times the first attenuation or less.
A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.
Apparatuses for expanding tubing and methods of use are provided herein. An exemplary process may include heating tubing to an expansion temperature, expanding the heated tubing within an expansion chamber by injecting a first fluid within the heated tubing to expand the heated tubing, and constraining expansion of the heated tubing within the expansion chamber by introducing a second fluid between an outer sidewall of the heated tubing and an inner sidewall of the expansion chamber.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
B29C 55/22 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of tubes
B29K 27/12 - Use of polyvinylhalogenides as moulding material containing fluorine
Apparatuses for expanding tubing and methods of use are provided herein. An exemplary process may include heating tubing to an expansion temperature, expanding the heated tubing within an expansion chamber by injecting a first fluid within the heated tubing to expand the heated tubing, and constraining expansion of the heated tubing within the expansion chamber by introducing a second fluid between an outer sidewall of the heated tubing and an inner sidewall of the expansion chamber.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
The present disclosure provides composite prosthetic devices including two or more layers of electrospun polymers and methods of preparation thereof. In some embodiments, the two or more layers can be porous and in other embodiments, one or more components is nonporous. The composite prosthetic devices can include various materials and the properties of the prosthetic devices can be tailored for use in a range of different applications.
A61F 2/00 - Filters implantable into blood vesselsProstheses, i.e. artificial substitutes or replacements for parts of the bodyAppliances for connecting them with the bodyDevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics
An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.
C08J 3/05 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
D01D 5/00 - Formation of filaments, threads, or the like
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
D01F 6/48 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
D04H 1/42 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
B05D 1/00 - Processes for applying liquids or other fluent materials
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 15/085 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyolefins
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08J 3/00 - Processes of treating or compounding macromolecular substances
B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
C08J 9/232 - Forming foamed products by sintering expandable particles
D06N 7/00 - Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
B29B 11/06 - Making preforms by moulding the material
B29C 55/04 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
D04H 1/74 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel
D04H 1/413 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing granules other than absorbent substances
In accordance with certain embodiments of the present disclosure, a process of forming a prosthetic device is provided. The process includes forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. A tubular frame is positioned over a tubular polymeric structure. Nanofibers from the dispersion are electrospun onto the tubular frame to form a prosthetic device. The prosthetic device is heated.
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 31/12 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
B82Y 5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
D01D 5/00 - Formation of filaments, threads, or the like
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
A method of preparing antimicrobial-containing polymeric products is provided, the method involving electrospinning a dispersion comprising a dispersible polymer, a fiberizing polymer, and one or more antimicrobial agents. The electrospun material is heated to remove solvent and the fiberizing polymer, giving a nonwoven polymeric material having antimicrobial agent incorporated therein. The material can be in the form of, for example, a non-woven sheet, tube, or covering.
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
In accordance with certain embodiments of the present disclosure, a process for forming a multilayered electrospun composite is provided. The process includes forming a dispersion of polymeric particles, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. Nanofibers from the dispersion are electrospun onto a first ePTFE layer. A second ePTFE layer is applied onto the nanofibers to form a composite structure. The composite structure is heated.
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
In accordance with certain embodiments of the present disclosure, a process of forming a prosthetic device is provided. The process includes forming a dispersion of polymeric particles, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. A tubular frame is positioned over a tubular polymeric structure. Nanofibers from the dispersion are electrospun onto the tubular frame to form a prosthetic device. The prosthetic device is heated.
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
17 - Rubber and plastic; packing and insulating materials
42 - Scientific, technological and industrial services, research and design
Goods & Services
Polymeric material in extruded form for use in manufacture; Polymeric material comprised of electrospun polymer strands for use in manufacture Research and development in the field of polymers for use in products; Testing, analysis and evaluation for others of polymers; Process development in the field of polymers for others
69.
Electrospinning of PTFE with high viscosity materials
An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Tubing; extruded profile shapes; electrically insulative wraps and plain and splined tubular coverings for metallic wires and tubes; beadings; and rods, all of fluoropolymeric resinous composition.
17 - Rubber and plastic; packing and insulating materials
Goods & Services
tubing for general industrial use; resins in extruded form for general industrial use; [ electrical insulating tape; ] and rods for general industrial use; all of the foregoing of fluoropolymeric resinous composition
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Tubing; Extruded Profile Shapes; Electrically Insulative Wraps and Plain and Splined Tubular Coverings for Metallic Wires and Tubes; Beadings; and Rods, All of Fluoropolymeric Resinous Composition
