Class / Patent application number | Description | Number of patent applications / Date published |
604526000 | Lumen enforced by embedded or coiling strands | 79 |
20080221554 | Deploying Embolic Coils - An embolic coil delivery system includes a catheter and an embolic coil disposed within the catheter, the embolic coil including a coil wire and a fiber bundle. A method of producing an embolic coil delivery system includes: advancing a delivery sheath over a distal end of an embolic coil while applying tension to the embolic coil via a retaining device that is attached to the distal end of the embolic coil. | 09-11-2008 |
20080255539 | Catheter Assembly With an Adjustable Loop - A catheter assembly ( | 10-16-2008 |
20080300577 | Polymer shrink tubes and novel uses therefor - Novel polymer shrink tubes, such as fluoropolymer shrink tubes and novel uses thereof. The polymer shrink tubes include at least one three-dimensional pattern formed along at least a portion of the inner surface of the tube. The polymer shrink tubes can be used for, for example, embossing a pattern into a polymer tube. Further use includes, for example, forming a catheter with at least one channel located in the catheter wall. | 12-04-2008 |
20090076482 | CANNULA REINFORCING BAND AND METHOD - A cannula assembly having a hollow elongate cannula with a proximal end, a distal end, and a central axis. A coiled reinforcing member is disposed along a portion of the hollow elongate cannula and is adapted to provide structural support to the elongate cannula. An intermediate reinforcing band is disposed on the elongate cannula between the proximal end and the distal end to reinforce a perforated section in the wall of the cannula and includes a forward edge, a rearward edge, at least one rib and at least one protrusion extending orthogonally from the forward edge and at least one protrusion extending from the rearward edge. A distal reinforcing band is disposed at the distal end of the elongate cannula and has a plurality of fingers that taper slightly inwardly toward the central axis of the hollow elongate cannula. | 03-19-2009 |
20090171319 | Catheter Shaft with Multiple Reinforcing Layers and Method of its Manufacture - A catheter shaft includes an inner layer of a first polymeric material, an intermediate layer of a second polymeric material, an outer layer of a third polymeric material, a first wire reinforcing layer encapsulated between the inner and intermediate layers, and a second wire reinforcing layer encapsulated between the outer and intermediate layers. Typically, the first wire reinforcing layer includes one or more metallic wires helically wound in one direction and the second wire reinforcing layer includes one or more metallic wires helically wound in the opposite direction. The intermediate layer is bonded to the inner and outer layers, as by extruding layers over one another or by thermal lamination or reflow bonding. Typically, the intermediate layer has a larger yield strain and/or a lower flexural modulus and/or a lower durometer than at least one of the inner layer and the outer layer. | 07-02-2009 |
20090299332 | MEDICAL DEVICE INCLUDING A POLYMER SLEEVE AND A COIL WOUND INTO THE POLYMER SLEEVE - Medical devices and methods for making and using the same. An example medical device may include an elongate core member having a proximal portion and a distal portion. A polymer jacket may be disposed about at least a portion of the core member. The jacket may include an outer surface. A lubricious coating may be disposed on the outer surface of the jacket. A coil may be disposed about at least a portion of the jacket. The coil may have an outer surface and may include a first section and a second section. At least a portion of the outer surface of the coil along the first section may be flush with or recessed below the outer surface of the polymer jacket. At least a portion of the outer surface of the coil along the second section may protrude from the outer surface of the polymer jacket, may be free of the coating, and may define a region of decreased lubricity. | 12-03-2009 |
20100057051 | INTRODUCER SHEATH WITH ENCAPSULATED REINFORCING MEMBER - An introducer sheath and a method for making the sheath. The sheath includes a fluoropolymer liner having a passageway extending longitudinally therethrough. An inner jacket is positioned longitudinally over the liner, and the inner surface of the inner jacket is bonded to the outer surface of the liner. An outer jacket is positioned longitudinally over the inner jacket, and the inner surface of the outer jacket is bonded to the outer surface of the inner jacket. A reinforcing coil is encapsulated within the inner jacket and the outer jacket. | 03-04-2010 |
20100318065 | MEDICAL GUIDEWIRE - Provided is a guidewire including a core shaft, an outer flexible tube, a stranded wire that extends parallel to the core shaft, and a hollow stranded-wire coil disposed in the outer flexible tube. The hollow stranded-wire coil is formed of multiple strands and surrounds the distal end portion of the core shaft and the stranded wire. Distal ends of the hollow stranded-wire coil, the core shaft, and the stranded wire are joined to a distal end of the outer flexible tube. | 12-16-2010 |
20100318066 | MEDICAL GUIDEWIRE - Provided is a guidewire including a core shaft, an outer flexible tube, a stranded wire that is disposed parallel to a distal end portion of the core shaft, and an inner flexible tube that surrounds a distal end portion of the core shaft and the stranded wire. The inner flexible tube is disposed in the outer flexible tube so that a distal end thereof is positioned between the distal ends of the core shaft and the stranded wire and a proximal end of the core shaft so as to be separated from the distal ends of the core shaft and the stranded wire. A joint is formed so as to join the distal end of the inner flexible tube, the core shaft, and the stranded wire to each other. | 12-16-2010 |
20110082443 | Elongate Medical Device with Continuous Reinforcement Member - An elongate medical device including an inner elongate member, a reinforcing member, and an outer tubular member is described. The reinforcing member may be a helically wound continuous wire including a first portion having a first cross-sectional profile, a second portion having a second cross-sectional profile, and a transition region located between the first portion and the second portion. The first cross-sectional profile may be different from the second cross-sectional profile. In some embodiments, the first cross-sectional profile may be circular or non-circular and the second cross-sectional profile may be circular or non-circular. | 04-07-2011 |
20110160702 | DOUBLE HELIX REINFORCED CATHETER - The intravascular catheter has two segments; a proximal segment with high stiffness and a distal segment with lower stiffness. The catheter can also have an intermediate segment of lower stiffness than the proximal segment and higher stiffness than the distal segment. The catheter comprises a polymeric inner tube, a reinforcing inner jacket which is spirally wound over the inner tube and which becomes progressively softer from a proximal end to a distal end, and a polymeric outer sheath extruded over the inner jacket according to the teachings of U.S. Pat. No. 5,445,624. The reinforcing jacket comprises helical coiled wires or fibers of various materials and layers wound over the inner tube in order to provide improved multi-axial mechanical properties, such as torque, compression, tension and anti-kinking characteristics. Stainless steel, carbon, glass, platinum, platinum/tungsten or palladium wire in either oval, round or flat geometry are used together with single or dual layers to achieve a graduated stiffness with the reinforcing jacket being stiffer at a proximal end and softer at a distal end. Methods for making the catheter and for annealing ends of the wound wire are also disclosed. | 06-30-2011 |
20110172643 | Catheter with Composite Stiffener - A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section. | 07-14-2011 |
20110245807 | Medical Tube - Provided is a medical tube which is flexible and achieves good kink resistant properties and high tensile strength at the same time. Even when connected to another tube, the medical tube maintains the above-mentioned kink resistant properties and tensile strength. A medical tube is provided with at least one coil layer, a first outer layer provided outside the coil layer, and a second outer layer provided outside the first outer layer. The melting point of the material which forms the second outer layer is lower than the melting point of the material forming the first outer layer. The outer surface of the coil layer and the inner surface of the first outer layer are in contact with and affixed to each other in a slidable state. | 10-06-2011 |
20110313401 | INDWELLING CATHETER WITH ANTI-CLOTTING FEATURES - A catheter for providing blood flow includes first and second lumen parts having a distal portion with at least one port for delivering and receiving flow from a patient and a non-linear profile along the distal portion. | 12-22-2011 |
20120022502 | SYSTEMS AND METHODS FOR IMPROVING CATHETER HOLE ARRAY EFFICIENCY - Systems and methods for manufacturing a peripheral catheter having a plurality of diffusion holes. | 01-26-2012 |
20120078230 | DEPLOYMENT ACTUATION SYSTEM - Contraceptive methods, systems, and devices generally improve the ease, speed, and reliability with which a contraceptive device can be deployed transcervically into an ostium of a fallopian tube. The contraceptive device may remain in a small profile configuration while a sheath is withdrawn proximally, and is thereafter expanded to a large profile configuration engaging the surrounding tissues, by manipulating one or more actuators of a proximal handle with a single hand. This leaves the other hand free to manipulate a hysteroscope, minimizing the number of health care professional required to deploy the contraceptive device. | 03-29-2012 |
20120101480 | CATHETER SHAFT - A catheter shaft having a helically wound elongate tubular member is disclosed. The catheter shaft may include a tubular member formed from helically wrapped length of material. The length of material may be wrapped to define a plurality of turns. At least some of the turns may be wrapped in an overlapping fashion such that at least a portion of a first edge of a turn overlaps at least of portion of a second edge of a turn of a previous turn defining an overlap distance. | 04-26-2012 |
20120136340 | CATHETER - A catheter which exhibits excellent anti-kinking properties while avoiding interference with respect to an object moving inside the lumen of the catheter includes: an elongated catheter main body having a longitudinally extending lumen; a tubular-shaped guide wire insertion portion on the distal end of the catheter main body through which a guide wire is insertable, and which includes a distal opening portion and a proximal opening portion; and a reinforcement portion having a coil portion in which at least a portion of the reinforcement portion is arranged proximally of the proximal opening portion and is formed by a wound wire element, and an extension portion extending from the wire element of the coil portion in the distal direction away from the proximal opening portion, and wherein the reinforcement portion is positioned between the inner surface and the outer surface of the lumen of the catheter main body. | 05-31-2012 |
20120136341 | Multilumen Catheters and Method of Manufacturing - A multilumen catheter assembly and method of making the catheter assembly is provided that involves providing a plurality of tubes, each tube having a first end, a second end, at least one lumen, and at least one surface, selectively heating at least a portion of the surface of at least a first tube of the plurality of tubes, and contacting the selectively heated portion of the tube with a portion of the surface of a second tube to form a multilumen catheter shaft that is joined together along at least a portion of the length of the catheter shaft. | 05-31-2012 |
20120172841 | POSITION CONFIRMING CATHETER - A catheter includes an inner layer, an outer layer, a reinforcement layer located between the inner layer and the outer layer, and a marker composed of a contrast material for confirming the position of the distal end portion of the catheter from outside the living body. The reinforcement layer is composed of a spiral first filamentous member, with a gap provided between those portions of the first filamentous member which are adjacent to each other along the longitudinal direction of the catheter. The marker is formed by spirally winding a second filamentous member having a filament diameter smaller than the gap, and has a portion in close contact with the inner layer in the gap. | 07-05-2012 |
20120232527 | MEDICAL DEVICE - A medical device including a shaft having an elongated inner member and an elongated tubular reinforcing member disposed over at least a portion of the inner member. In some embodiments, at least a portion of the outer surface of the inner member is spaced from the inner surface of the reinforcing member, defining a space substantially free of any other structures of the device. In some embodiments, the shaft can include a tip structure disposed on a distal portion of the inner member. In some such embodiments, the reinforcing member has a distal end, and the tip structure is disposed on the distal portion of the inner member adjacent the distal end of the reinforcing member. Additionally, in some embodiments, the reinforcing member can include a plurality of apertures defined therein, for example, to enhance the flexibility or other such characteristics of all or portions of the reinforcing member. | 09-13-2012 |
20120310213 | Medical Catheter With Bump Tubing Proximal Segment - A medical catheter for inserting into a body includes a bump tubing section with proximal and distal ends, wherein the proximal end is configured to mate with a hub. The bump tubing section has an intermediate portion extending away from the proximal end with a substantially constant outer diameter and thickness, and a taper portion adjacent the distal end with generally decreasing inside and outside diameters to provide a gradually increasing flexibility toward the distal end of the bump tubing section. The bump tubing section is comprised of a polymer having a predetermined flexural modulus. A tip section is disposed distally of the distal end of the bump tubing section comprising a distal liner and a distal cover such that at least a majority of the tip section has a substantially constant stiffness and a flexural modulus substantially equal to or greater than the predetermined flexural modulus. | 12-06-2012 |
20130072906 | CATHETER HAVING IMPROVED BONDING REGION - A method of making a catheter having a flexible outer tube and a lubricious inner tube bonded to the flexible outer tube. The catheter is formed of a distal outer tube formed of a first, flexible material, an inner tube having a lubricious inside wall surface formed of a second, lubricious material, and an outer tube wall surface compatible with heat bonding the inner tube outside wall surface to the outer tube wall surfaces. A preferred flexible material is polyether block amide (PEBA) and a preferred lubricious material is polyethylene. | 03-21-2013 |
20130090632 | MEDICAL TUBE, AND MANUFACTURING METHOD FOR SAME - It is an object to stably provide a thin-walled flexible medical tube having excellent kink resistance and tensile strength by a simple manufacturing method. The object is achieved by a method for manufacturing a medical tube that includes a coil layer on an inside of an outer layer tube made of a resin, and the method includes inserting the coil layer into the outer layer tube and heating the outer layer tube at a molding temperature lower than a melting point of the outer layer tube, thereby bringing the outer layer tube into contact with the coil layer to slidably fix the outer layer tube onto the coil layer. | 04-11-2013 |
20130131641 | DOUBLE HELIX REINFORCED CATHETER - The intravascular catheter has two segments; a proximal segment with high stiffness and a distal segment with lower stiffness. The catheter can also have an intermediate segment of lower stiffness than the proximal segment and higher stiffness than the distal segment. The catheter comprises a polymeric inner tube, a reinforcing inner jacket which is spirally wound over the inner tube and which becomes progressively softer from a proximal end to a distal end, and a polymeric outer sheath extruded over the inner jacket according to the teachings of U.S. Pat. No. 5,445,624. The reinforcing jacket comprises helical coiled wires or fibers of various materials and layers wound over the inner tube in order to provide improved multi-axial mechanical properties, such as torque, compression, tension and anti-kinking characteristics. Stainless steel, carbon, glass, platinum, platinum/tungsten or palladium wire in either oval, round or flat geometry are used together with single or dual layers to achieve a graduated stiffness with the reinforcing jacket being stiffer at a proximal end and softer at a distal end. Methods for making the catheter and for annealing ends of the wound wire are also disclosed. | 05-23-2013 |
20130184686 | Flexible Medical Tubing Having Kink Resistant Properties And Methods And Apparatus To Produce The Same - A flexible, kink-resistant medical tube and a method and apparatus for making the same are provided. The tube includes a body having a first end, a second end, an outer surface and an inner surface. The tube includes a lumen defined by the inner surface of the body and extending between the first end and the second end. The tube also includes a helical structure within in the body. | 07-18-2013 |
20140074070 | CATHETER ASSEMBLY - A catheter ( | 03-13-2014 |
20140194856 | INTRODUCER SHEATH - Introducer sheath ( | 07-10-2014 |
20140207115 | MEDICAL TUBING HAVING VARIABLE CHARACTERISTCS AND METHOD OF MAKING SAME - The invention primarily is directed to a medical tubing adapted for insertion into a body tissue or cavity and method of manufacturing different variations of the tubing along a length of the tubing. The tubing comprises a plurality of individual, discrete, generally ring-shaped elements arranged in series and fused or bonded together forming a continuous tubular structure. The ring-shaped elements may include a combination of flexible and rigid ring-shaped elements assembled along different portions or sections of the tubular structure. In another aspect of the invention, the medical tubing may further comprise a secondary lumen and a pull wire to control the tubular structure. In another aspect of the invention, the ring-shaped elements may vary in diameter and/or composition in different portions or sections of the tubular structure. | 07-24-2014 |
20140243796 | Catheter shaft and method of manufacture - A method of manufacturing a catheter assembly generally includes providing a catheter shaft having an outer layer and an inner reinforcing layer; removing at least a portion of the outer layer from a length of the distal end of the catheter shaft in order to expose a distal segment thereof; providing an inner jacket segment; axially engaging the inner jacket segment with an interior surface of the distal segment of the catheter shaft; providing an outer jacket segment around at least the exposed exterior region of the distal segment of the catheter shaft; and bonding the distal segment of the catheter shaft to the inner jacket segment and the outer jacket segment. | 08-28-2014 |
20140276643 | MULTILAYERED CATHETER SHAFT CONTAINING POLYVINYLIDENE FLUORIDE POLYMERS - In various embodiments of the present disclosure, a surgical catheter is provided. The present disclosure provides a catheter shaft that includes a distal portion and a proximal portion. The proximal portion comprises a handle operably connected to the distal portion of the elongated structure. The distal portion three radially positioned polymeric layers. At least two of the layers include chemically dissimilar polymers and at least one of the three layers includes functionalized polyvinylidene fluoride (PVDF). | 09-18-2014 |
20150080858 | CATHETER AND METHOD OF MAKING THE SAME - A method of manufacturing a catheter includes wrapping a sheet of material having an inner adhesive layer around a reinforcement member. The catheter manufactured is a resilient tube having a channel extending therethrough. The resilient tube has an adhesive inner layer and a bendable reinforcement member which extends through the channel. | 03-19-2015 |
20150119859 | FLEXIBLE CATHETER SHAFT AND METHOD OF MANUFACTURE - The present disclosure provides a strong, flexible catheter shaft for use in a catheter system. The flexible catheter shaft includes a braided polyimide tube including one or more outer layers of material of varying flexibility. The flexible catheter shaft provides a shaft having sufficient stiffness and kink resistance to allow an operator to advance an electrode basket connected to the flexible catheter shaft through a guide catheter to a target ablation site without causing vessel trauma. The distal tip of the flexible catheter shaft is designed to have sufficient flexibility to reduce any risk of kicking out a guide catheter when tracking the electrode basket around turns into side branches or bifurcations in the vasculature of a patient and includes a distal spring coil. | 04-30-2015 |
20150306347 | CATHETER - A catheter includes a catheter shaft having an inner layer, a reinforcing body covering the inner layer, and an outer layer covering the reinforcing body. Additionally, a tubular metallic distal end tip is provided at the distal end of the catheter shaft, and a slit is formed on the distal end tip. An outer peripheral surface of the distal end tip is provided with outer coating such that the outer coating is disposed within the slit. Thus, the metallic distal end tip may bend easily and the distal end tip is not easily caught on, for example, a lesion. | 10-29-2015 |
20150335857 | CATHETER - A catheter includes an inner layer, a coil body covering the inner layer, and an outer layer covering the coil body. The coil body includes a plurality of element wires (thin wires and thick wires). The thick wires of the coil body are ground so that the cross-sectional shape of the thick wires is semicircular, and an inner diameter and an outer diameter of the coil body are substantially constant in a part in which the thick wires are ground. It is thus possible to prevent occurrence of unevenness on an outer peripheral surface or an inner peripheral surface of the catheter. Furthermore, when the catheter is bent, the thin wires move along the circular arc portion of the thick wires, which allows the catheter to bend a relatively large amount. | 11-26-2015 |
20160001038 | TOOL AND METHOD FOR USING SURGICAL ENDOSCOPE WITH SPIRAL LUMENS - An embodiment of the present invention provides for an elongated medical device with a hypotube backbone running through the device, and a spiral lumen spiraled around the backbone along the length of the backbone. The backbone may be formed from a nitinol alloy for increased bendability without compromising axial stiffness. The device may also incorporate a jacket around the hypotube and spiral lumen formed using either melting, molding, bonding, or casting. The spiral lumen may be configured to accommodate a variety of uses, including actuation members (e.g., pull wires), tools, and means for aspiration, irrigation, image capture, and illumination. Additionally, the present invention provides a method for constructing an elongated medical device with a hypotube backbone running through the device, and a spiral lumen spiraled around the backbone along the length of the backbone. | 01-07-2016 |
20160015928 | COATED TUBULAR SUPPORT MEMBERS AND METHODS OF MANUFACTURING SAME - A tubular support member located in a distal portion of an elongate flexible medical device is provided with a plurality of wall openings, e.g., axially-spaced, substantially transverse slots, formed therein to thereby increase a flexibility of the support member. A layer of sealing material overlays an outer surface the support member so as to provide a sealed portion of the support member including the wall openings, the sealing material having respective flexible invaginations formed therein overlaying the wall openings in the support member so that the sealing material does not substantially impede flexibility of the support member. | 01-21-2016 |
20160030705 | INSERTION ELEMENT FOR MEDICAL IMPLANT INSERTION DEVICE - An insertion element configured for cooperation with an insertion device for the insertion of a medical implant into a human or animal body. The insertion element has a sleeve with a longitudinal axis. A frame has transverse elements, at least in regions, that are arranged transversely to the longitudinal axis. The transverse elements follow one another along the longitudinal axis and are integrated into the sleeve. The transverse elements are connected along the longitudinal axis to a longitudinal element. The frame ( | 02-04-2016 |
20160030711 | Controlled deformation catheters - Catheters are provided which have a high capacity of axial (pushability) and rotational (torquability) movement with relative maximum flexibility and which, at the same time have the ability to adapt to at least partial variations of diameter under the thrust of other catheters or dilators travelling though the lumen or so as to flatten itself at least partially to travel through the lumen of other catheters, such as for example feed catheters. | 02-04-2016 |
20160136387 | CATHETHER AND METHOD FOR MANUFACTURING THE SAME - A catheter is disclosed which has at least a two-layered structure and can suppress decrease in function thereof by suppressing the disorder at an interface between layers during use, and a method for manufacturing the same. The catheter has an inner layer as a tube shaped body made of a thermoplastic resin and an outer layer, as a tube shaped body made of a thermoplastic resin, coming into contact with the outer surface of the inner layer, and has a reinforcement member which is at least partially embedded in the inner layer and includes a gap leading the inner layer toward the radial outside of the catheter. The inner layer has a protrusion which extends in an axial direction of the catheter while protruding from the gap to the radial outside, is positioned on the radial outside of the reinforcement member, and ingrows into the outer layer. | 05-19-2016 |
20190143076 | SYSTEMS AND METHOD FOR MEDICAL DEVICE STRAIN RELIEF | 05-16-2019 |
604527000 | Braided or woven strands surrounding lumen | 38 |
20080262471 | CATHETER WITH BRAIDED AND COILED REINFORCING LAYER - A catheter includes an elongate member having a braided and coiled reinforcing layer encased within a polymeric bonding layer. The reinforcing layer comprises a plurality of continuous filaments that transform from a braided configuration to a coiled configuration in a least one location along the catheter. Also disclosed is a method of manufacturing a braided and coiled elongate member including providing a core, forming at least one braided portion with a plurality of filaments and forming at least one coiled portion with at least a portion of the same plurality of filaments. | 10-23-2008 |
20080262472 | Catheter With Reinforcing Layer Having Variable Strand Construction - A catheter includes an elongate member having a braided reinforcing layer encased within a polymeric bonding layer. The reinforcing layer comprises a plurality of continuous filaments that transform from a full complement braid configuration to a partial complement braid configuration in a least one location along the catheter. Also disclosed is a method of manufacturing a braided elongate member including providing a core, forming at least one full complement braid portion with a plurality of filaments and forming at least one partial complement braid portion with a portion of the same plurality of filaments. | 10-23-2008 |
20090043285 | Braided Peelable Sheath - The present invention is a splitable/peelable reinforced flexible tubular body ( | 02-12-2009 |
20090082756 | Transradial coronary catheter - Provided is a catheter suitable for catheterization of a right coronary artery using a right transradial approach. The catheter presents improved directionality, thereby requiring minimized external torque to be applied during insertion and diagnostic procedures. A catheter according to the disclosed design includes a tip near its distal end, a primary curve, a secondary curve, a tertiary curve and a proximal end accessible external a catheterized body. When properly inserted, the secondary curve may rest near the junction of the bracheocephalic trunk and the right subclavian artery, and the tertiary curve may rest in the superior curve of the right subclavian artery. In addition to improved directionality, the secondary and/or tertiary curve offers additional resistance against cephalic, or upward, back-up force by providing caudal, or downward, torque to more distal portions of the catheter body. | 03-26-2009 |
20090240235 | MEDICAL CATHETER TUBE AND PROCESS FOR PRODUCING THE SAME - There is provided a medical catheter tube capable of exhibiting excellent flexibility, and provided a process for producing the same. In particular, there is provided a medical catheter tube having, arranged from a base edge side, a base part, a forefront part and a cutting edge part The medical catheter tube comprises an inner layer tube of resin pipe; a reinforcing material layer produced by knitting of a wire around the inner layer tube; a marker disposed by winding and covering of the inner layer tube at the forefront part with a roentgenopaque metal member; and an outer layer tube of resin pipe covering the reinforcing material layer and the marker. The inner layer tube, reinforcing material layer, marker and outer layer tube of the medical catheter tube are united together. | 09-24-2009 |
20090270839 | Braided Catheter Reinforcement Layer Having Short Axial Filament Segments - A catheter includes an elongate member having a braided reinforcing layer. The reinforcing layer comprises a plurality of continuous filaments that transform from a braided configuration to short axially oriented segments in a least one location along the catheter. Also disclosed is a method of manufacturing a braided elongate member including providing a core, forming at least one braided portion with a plurality of filaments and forming at least one short axially oriented segment with at least a portion of the same plurality of filaments. | 10-29-2009 |
20090299333 | COMPOSITE FLEXIBLE TUBE FOR MEDICAL APPLICATIONS - A flexible composite tube for medical applications is described. The tube has the ability to transmit a torque and to resist compression, tension, and kinking. The tube is also very flexible in bending, and has a small wall thickness. Different layers are used to obtain the desired properties. Torsional stiffness is obtained by embedding a braid in an elastomeric material. Resistance to kinks and to compression and tension is obtained by placing coils radially inward or outward of the braid. Smooth plastic layers are used to seal the assembly, and facilitate sliding in a body cavity. | 12-03-2009 |
20100004631 | MEDICAL DEVICE INCLUDING BRAID WITH COATED PORTION - Alternative design, material, manufacturing method, and use for medical devices, such as catheters, catheter shafts and the like. An example includes a medical device, such as a catheter shaft, including an elongated tubular braid comprising a plurality of filaments and including an end portion coated with a first polymeric material having a first melting point temperature, wherein the first polymeric material attaches the braid filaments together. A second polymeric material having a second melting temperature lower than the first melting point temperature may be attached to the coated end portion of the braid. In some embodiments, the underlying a first polymeric material may reduce the tendency of the braid to flair into the second polymeric material. Other examples relate to methods of making such medical devices, such as a catheter shaft, of the like. | 01-07-2010 |
20100016837 | INTRODUCER SHEATH HAVING A BRAIDED MEMBER AND METHODS OF MANUFACTURE - The present embodiments provide an introducer sheath having a braided member and methods of manufacture. The introducer sheath comprises an inner tube, a braided member disposed over at least a portion of the inner tube, and an outer tube disposed over the inner tube and the braided member. In one embodiment, the braided member comprises a plurality of intersecting first and second wire segments at least partially covered with a coating. At least a portion of the first and second wire segments are bonded together at one or more intersections, for example, by melting the coating, to reduce movement of at least one of the first and second wire segments with respect to one another. Optionally, a coiled member having a plurality of turns may be disposed over a portion of the braided member and the inner tube. | 01-21-2010 |
20100030193 | GUIDE CATHETER AND METHOD OF MAKING SAME - The present invention is a guide catheter and a method of making the guide catheter. The invention includes a catheter having an inner layer, a support element associated with the inner layer, and an outer layer external to the support element. The invention further includes a cutting apparatus used in the method of making the guide catheter. | 02-04-2010 |
20100049167 | INTRODUCER SHEATH HAVING REINFORCED DISTAL TAPER - An introducer sheath has an inner liner having a first length comprising a major diameter, a second length comprising a minor diameter, and a tapered third length axially disposed between the first and second lengths. A coil is positioned over the inner liner and spans at least a portion of each of the first, second, and third lengths. An outer jacket is positioned longitudinally around the reinforcing member and the inner liner, and is bonded to the outer surface of the inner liner. The outer jacket has a first length comprising a major diameter, a second length comprising a minor diameter, and a tapered third length axially disposed between the first and second lengths. The outer diameter first, second, and third lengths substantially correspond to and are disposed radially outwardly of the respective inner liner first, second, and third lengths. | 02-25-2010 |
20100049168 | INTRODUCER SHEATH HAVING DUAL REINFORCING ELEMENTS - An introducer sheath for deploying a stent to a target site within a body passageway of a patient. The introducer sheath includes a tubular inner liner having a proximal portion, a distal portion, and an outer surface. A first reinforcing element, and a second reinforcing element are positioned along the outer surface of the inner liner. The first reinforcing element comprises a braid the second reinforcing element comprises a coil. The braid is positioned at the proximal portion of the inner liner and extends distally therefrom. The coil is positioned at the distal portion longitudinally adjacent the braid. The braid has a length that may extend about 90% of the length of the sheath. An outer jacket is positioned longitudinally around the reinforcing elements, and is connected to the inner liner between the respective wires of the braid and the coil. | 02-25-2010 |
20100057052 | Medical Catheter Tube - A catheter tube for medical use includes an inner resin layer, a reinforcing material layer located on the inner resin layer and an outer resin layer located on the reinforcing material layer. The reinforcing material layer is composed of twisted yarns. Thus, it is possible to provide a catheter tube for medical use that has excellent shape recovery (memory) properties after the formation of a kink or a puncture and flexibility at the front edge. | 03-04-2010 |
20100094258 | CATHETER - A catheter body includes a hollow coil whose outer and inner surfaces are coated with outer and inner resin layers. A resin tip is provided at a distal end of the catheter body. The tip has a tapered section at a distal end of the tip. Also, an axially extending braid is embedded in the catheter body and the tip to extend from the catheter body to the tip. | 04-15-2010 |
20100217235 | Catheter and method of manufacture - The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about | 08-26-2010 |
20100249754 | Guide Catheter With Removable Support - Catheters such as guide catheters can be configured for delivery of devices to vasculature portions such as intracranial spaces while retaining a desired level of flexibility. A catheter having an elongate shaft can include removable support means that can provide column support to the elongate shaft. The elongate shaft can include anchoring means that releasably secure the removable support means. The catheter can be deployed within a patient's vasculature, followed by deploying the removable support means. | 09-30-2010 |
20100268196 | BRAIDED PEELABLE CATHETER AND METHOD OF MANUFACTURE - A method of manufacturing a braid-reinforced peelable tubular body is disclosed herein. In one embodiment, the method includes: providing a braided tubular body; forming at least one longitudinally extending slit in tho braided tubular body, resulting in a longitudinally slit braided tubular body, the at least one longitudinally extending slit including slit edges and a severed braid layer of the braided tubular body; placing the longitudinally slit braided tubular body on a mandrel; placing a heat shrink tube about the longitudinally slit braided tubular body; subjecting the heat shrink tube and longitudinally slit braided tubular body to bonding conditions, such as, for example, reflow, laser bonding, thermoforming, etc., thereby causing the slit edges to be joined to each other and resulting in a braid-reinforced peelable tubular body; and removing the braid-reinforced peelable tubular body from the mandrel. | 10-21-2010 |
20110106056 | MEDICAL TUBE AND CATHETER USING THE SAME - Provided is a medical tube that is capable of preventing thrombi from adhering to the inside of a side hole thereof such that a required and sufficient opening area of the side hole is maintained, as well as of preventing a kink from being generated in, e.g., a catheter using the medical tube with the side hole. A side hole is provided through a side surface of a catheter body. A strand of a braid member in the vicinity of the side hole is covered with a resinous protective resin portion, thus being kept from exposure at the inner peripheral surface of the side hole. | 05-05-2011 |
20110238041 | VARIABLE FLEXIBILITY CATHETER - A multi-layered catheter is provided, having a proximal end, a distal end, and a lumen extending therethrough. The catheter can have various sections of different flexibility extending distally along the length of the catheter. The catheter can have four layers along a proximal portion, and three layers along a distal portion. In some embodiments, the layers can comprise at least a stainless steel coil and a stainless steel braid. The catheter can exhibit both flexibility as well as kink resistance. | 09-29-2011 |
20120157971 | VASCULAR ACCESS SYSTEM - A connector system includes an engagement mechanism is provided that includes an engagement feature and a braided reinforcement coupled with a proximal portion of a catheter. The engagement feature can include one, two, or two or more barbs. | 06-21-2012 |
20120277730 | Steerable Delivery Sheaths - Steerable medical delivery devices and their methods of use. | 11-01-2012 |
20120310214 | EMBEDDED WIRE EXTRUSION WITH CONTINUOUS LOOP TIP - An elongate medical device includes a tubular member extending between a proximal end and a distal end that has a wall defining a lumen extending therethrough. The elongate medical device also includes a loop portion comprising a plurality of wires having proximal portions embedded into the wall and distal portions which are connected together to form a loop that is distal the distal end of the tubular member. | 12-06-2012 |
20130046285 | Elongate Medical Device with Continuous Reinforcement Member - An elongate medical device including an inner elongate member, a reinforcing member, and an outer tubular member is described. The reinforcing member may be a helically wound continuous wire including a first portion having a first cross-sectional profile, a second portion having a second cross-sectional profile, and a transition region located between the first portion and the second portion. The first cross-sectional profile may be different from the second cross-sectional profile. In some embodiments, the first cross-sectional profile may be circular or non-circular and the second cross-sectional profile may be circular or non-circular. | 02-21-2013 |
20130197481 | Catheter Shaft and Method of Its Manufacture - A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes. | 08-01-2013 |
20130197482 | FIXING DEVICE AND CATHETER SET - A catheter set includes a catheter and a fixing device. The fixing device includes a tubular member which is formed in such a way as to increase or decrease in diameter under axial extension or compression. A first projection and a second projection are provided at both ends of the tubular member. A movable tubular body is disposed around the tubular member between the first projection and the second projection. A distal part is coupled to the tubular member by a support member. The distal part is disposed distally of the tubular member and is configured to at least contact a proximal portion of a tubular device for medical use through which the catheter runs. | 08-01-2013 |
20140031796 | CATHETER - A catheter includes an inner layer, a braid, an outer layer, and a distal tip. A recessed region having a first side and a second side is formed in a distal end portion of the braid, a length of the first side being longer than the sum of a wire width of a first wire and a distance between two adjacent first wires, a length of the second side being longer than the sum of a wire width of a second wire and a distance between two adjacent second wires. The distal tip is bonded to the inner layer in the recessed region. By providing the recessed region, the number of peaks formed in the distal end portion of the braid is made smaller than that in the existing case. | 01-30-2014 |
20140046301 | CATHETER - A body of a catheter includes an inner layer, a braid, and an outer layer. The braid includes first and second wires. The first and second wires can be joined together such that the distal end portion of the first wire winds itself around a side surface of the second wire. A joint includes a first joint portion positioned at the intersection point, a second joint portion positioned beyond the first wire in a width direction of the first wire, and a third joint portion positioned beyond the second wire in a width direction of the second wire. Thus, even when the first and second wires have small thicknesses for size reduction of the braid, the first and second wires can be joined together with high joint strength by increasing the area of the second joint portion or the thickness of the third joint portion. | 02-13-2014 |
20140214006 | CATHETER - A catheter includes an inner layer, and a braid provided on an outer periphery of the inner layer. The braid includes a first wire and a second wire that are woven together. The catheter further includes a tip provided on a distal end of the inner layer and a distal end of the braid. A residual portion having a sharp shape formed at a distal end of the first wire when the first wire is cut is not left untreated, but is formed into a bulging portion. | 07-31-2014 |
20140236124 | CATHETER - A catheter has an intermediate layer with a constant thickness in first and second adjacent portion, and the adhesive strength between the intermediate layer and an inner layer is uniform. When the catheter is curved, the movement of a braid caused by the curving of the catheter can be uniformly suppressed within the adjacent first and second portions. Even if, when the catheter is curved, a tensile stress towards a proximal end acts upon a first outer layer at the first portion and a tensile stress towards a distal end acts upon a second outer layer at the adjacent second portion, the first and second outer layers are caught by an uneven contour of the intermediate layer by an anchor effect, so that it is possible to prevent peeling of the first and second outer layers from the intermediate layer. | 08-21-2014 |
20140276644 | Elastic Catheter - A catheter with an elastic reinforcement layer allows its catheter tube to expand from a native diameter to an expanded diameter. In this respect, a device or implant with a larger diameter than that of the catheter tube's native diameter size can be passed through the catheter without damage. | 09-18-2014 |
20140303599 | Steerable Catheter Using Flat Pull Wires and Having Torque Transfer Layer Made of Braided Flat Wires - A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly may also be provided in the outer layer, and may be formed by braiding a plurality of flat wires into a wire mesh. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat. | 10-09-2014 |
20140330253 | TUBE FOR BEING INTRODUCED INTO AN OBJECT - The application relates to a tube for being introduced into an object. The tube ( | 11-06-2014 |
20150320971 | CATHETERS WITH LUBRICIOUS LININGS AND METHODS FOR MAKING AND USING THEM - Apparatus and methods are provided for creating tubular devices, e.g., as components for catheters, sheaths, and or other devices sized for introduction into a patient. In one embodiment, a method is provided for making a tubular device using a sheet of material including a coated first surface. The sheet is rolled around a mandrel until longitudinal edges of the sheet are disposed near or adjacent one another, e.g., without attaching the longitudinal edges together. A tubular braid is positioned over the sheet-wrapped mandrel, one or more tubular segments are positioned over the tubular braid, and heat shrink tubing is positioned over the tubular segments. The resulting assembly is heated to cause the tubular segments to at least partially reflow and/or otherwise laminate the tubular segments to the tubular braid and sheet. The heat shrink tubing and mandrel are then removed to create the tubular device. | 11-12-2015 |
20150367098 | CATHETER OR SHEATH ASSEMBLY - A catheter or sheath includes an inner layer made of a relatively hard material, an intermediate layer formed of a strengthening member and being provided with interstitial material in the spaces between the elements of the strengthening member. Overlying the intermediate layer is an outer layer of, for example, polyamide. The interstitial material is relatively soft, which allows the catheter to be bent to smaller radii of curvature than prior art catheters with reduced risk of kinking. | 12-24-2015 |
20160114126 | Catheter and Introducer Catheter Having Torque Transfer Layer and Method of Manufacture - The instant invention relates generally to catheters and to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter catheters and introducer catheters having a torque transfer layer that includes at least two flat wires braided into a wire mesh. The flat wires have a width of at least about 0.007 inches and a depth of at least about 0.003 inches. The lumen diameter of the catheter is at least about 6 French. The torque transfer layer provides increased strength, flexibility, and kink resistance. | 04-28-2016 |
20160121075 | Swaged braided catheter and method of fabrication - A swaged braided catheter for use in various medical procedures is provided. The swaged braided catheter includes a tubular braid formed from a plurality of braided wire members. A plurality of intersections is formed by the braided wire members. The intersections are compressed defining a plurality of flattened regions along the tubular braid. The intersections have a first thickness before being compressed and a reduced second thickness after being compressed. The flattened regions with the reduced second thickness provide the swaged braided catheter with a reduced cross-sectional profile, and reduced catheter recoil. | 05-05-2016 |
20160121077 | Braid Plating For Torsional Stiffness - A woven wire braid residing between a polymer inner lumen and a polymer outer lumen transmits control force in a catheter. After braiding the wires, the braid is plated with a metal, such as electroless nickel alloy deposited with a target thickness in a range of 250-1200 micro-inches. The metal plating joins the wires to each other at points of contact which torsionally stiffens the braid. At the same time, the metal plating leaves lengths of the wires unattached between the points of contact, permitting flexibility to the braid due to the unattached lengths between points of contact. | 05-05-2016 |
20160158490 | CATHETER DEVICES AND METHODS FOR MAKING THEM - Tubular devices are provided that include a proximal end, a distal end sized for introduction into a patient's body, a central lumen, a conductor extending between the proximal and distal ends adjacent the central lumen, reinforcement members including windings extending helically around the central lumen, and an outer jacket. The tubular device includes a first portion in which the conductor extends helically around the central lumen, and a second portion in which the conductor extends longitudinally and either a) all of the windings surround the central lumen and the conductor remains outside the windings, b) at least some of the windings pass between the central lumen and the conductor and at least some of the windings surround both the central lumen and the conductor, and c) all of the windings surround both the central lumen and the conductor. Methods for making such tubular devices are also provided. | 06-09-2016 |