WO2005065584A1 - Medical device with modified marker band - Google Patents

Medical device with modified marker band Download PDF

Info

Publication number
WO2005065584A1
WO2005065584A1 PCT/US2004/041114 US2004041114W WO2005065584A1 WO 2005065584 A1 WO2005065584 A1 WO 2005065584A1 US 2004041114 W US2004041114 W US 2004041114W WO 2005065584 A1 WO2005065584 A1 WO 2005065584A1
Authority
WO
WIPO (PCT)
Prior art keywords
marker band
end region
medical device
slits
distal end
Prior art date
Application number
PCT/US2004/041114
Other languages
French (fr)
Inventor
Richard C. Gunderson
Original Assignee
Boston Scientific Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boston Scientific Limited filed Critical Boston Scientific Limited
Priority to JP2006547064A priority Critical patent/JP4980070B2/en
Priority to CA002552115A priority patent/CA2552115A1/en
Priority to EP04813436.5A priority patent/EP1703861B1/en
Publication of WO2005065584A1 publication Critical patent/WO2005065584A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39Markers, e.g. radio-opaque or breast lesions markers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • A61M25/0012Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09058Basic structures of guide wires
    • A61M2025/09075Basic structures of guide wires having a core without a coil possibly combined with a sheath
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • A61M2025/1043Balloon catheters with special features or adapted for special applications
    • A61M2025/1079Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon

Definitions

  • the present invention pertains to marker bands for in-vivo radiographic visualization and medical devices that include a marker band. More particularly, the present invention pertains to marker bands that include one or more holes or slots defined therein and medical devices that include these modified marker bands with polymeric material filling the holes or slots.
  • Background of the Invention A wide variety of radiopaque marker bands have been developed for intracorporal medical devices. Some of the devices that include marker bands are guidewires and catheters. Of the known marker bands and intracorporal medical devices with marker bands, each has certain advantages and disadvantages. There is an ongoing need to provide alternative designs and methods of making and using marker bands and medical devices with marker bands.
  • the invention provides design, material and manufacturing method alternatives for radiopaque marker bands, and medical devices with marker bands.
  • the marker bands include a body region having one or more holes or slots formed therein. The holes may desirably impact the bonding between the marker band and a catheter shaft or other suitable structure.
  • Figure 1 is a partial cross-sectional side view of an example medical device having a marker band
  • Figure 2 is a cross-sectional side view of a portion of the medical device shown in Figure 1
  • Figure 3 is a cross-sectional side view of another example medical device having a marker band
  • Figure 4 is a perspective view of an example marker band for use with a medical device
  • Figure 5 is a perspective view of another example marker band for use with a medical device
  • Figure 6 is a perspective view of another example marker band for use with a medical device
  • Figure 7 is a perspective view of another example marker band for use with a medical device
  • Figure 8 is a perspective view of another example marker band for use with a medical device
  • Figure 9 is a perspective view of another example marker band for use with a medical device.
  • FIG. 1 is an example medical device 10, generally depicted as a guide catheter.
  • Catheter 10 may include an elongate catheter shaft 12 having a proximal end region 14 and a distal end region 16.
  • a hub 18 may be coupled to proximal end region 14.
  • Example guide catheters include a tubular lubricious liner that forms a lumen therein.
  • a reinforcing member extends over the liner for a selected distance from the proximal end to provide stiffness.
  • the reinforcement can be a metallic braid or other means known in the art.
  • Catheter 10 may also include one or more marker bands 20. Marker bands 20 may be disposed at essentially any position along shaft 12.
  • medical device 10 is depicted in Figure 1 as a guide catheter, device 10 could be any other type of catheter including diagnostic or therapeutic catheters such as angioplasty balloon catheters, atherectomy catheters, stent delivery catheters, and the like, or any other suitable device.
  • medical device 10 can generally include any device designed to pass through an opening or body lumen.
  • medical device 10 may comprise an endoscopic device, laproscopic device, embolic protection device, guidewire (as shown in Figure 3), and the like, or any other suitable device.
  • marker band 20 is intended to aid in the visualization of catheter 10 (via any number of known visualization techniques) while the medical device is in use within the body.
  • the visualization techniques used rely on marker band 20 being made from or otherwise including a radiopaque material.
  • Radiopaque materials are understood to be materials capable of producing a relatively bright image on a fluoroscopy screen or another imaging technique during a medical procedure. This relatively bright image aids the user of catheter 10 in determining its location.
  • Some examples of radiopaque materials can include, but are not limited to, gold, platinum, platinum-iridium, palladium, tantalum, tungsten alloy, plastic material loaded with a radiopaque filler, and the like.
  • Marker band 20 may be incorporated into catheter 10 by disposing marker band 20 over catheter shaft 12 during the manufacturing process. This manufacturing step may also include securing the position of marker band 20 relative to shaft 12. Securing the position of marker band 20 may be important for a number of reasons. For example, if marker band 20 is properly secured, the clinician can rely on the known position of marker band 20 in order to accurately assess the position of the remainder of catheter 10. This may include the clinician being able to know the precise location of the distal end of catheter 10 by virtue of visualizing marker band 20 and knowing how far marker band 20 is from the distal end of catheter 10. This may be critically important when catheter 10 is being used in a particular sensitive location, such as the central nervous system, because errantly positioning the catheter 10 could damage sensitive areas.
  • Marker band 20 may include a number of refinements, which may provide a number of desirable features to catheter 10 and/or marker band 20 itself. These refinements may include improving the bonding between marker band 20 and shaft 12.
  • marker band 20 may include one or more holes or slits 22 formed therein, as shown in Figure 2.
  • holes 22 may improving the bonding of marker band 20 to shaft 12, for example, by interlocking marker band 20 with shaft 12 by including an exterior polymer layer 24.
  • Interlocking may be accomplished by disposing polymer layer 24 over marker band 20, then melting and allowing polymer layer 24 to flow through holes 22 and within the space or void 26 that may exist between marker band 20 and an inner liner or shaft portion 28. Therefore, including slits 22 allows for consistent and predictable reflow of polymer layer 24 that essentially fills space 26. Once the polymer layer 24 is solidified or otherwise hardened, marker band 20 becomes locked into position. As described above, securing the position of marker band 20 may be desirable.
  • the manufacturing steps that can be used to create the interlocking structure or arrangement between marker band 20 and shaft 12 may include extruding polymer layer 24 over marker band 20 and liner 28.
  • Liner 28 may comprise a generally tubular shaft that may be made of a metal, metal alloy, polymer, composite material, and the like, or any other suitable material.
  • liner 28 may comprise a stainless steel or nickel-titanium alloy hypodermic tube (i.e., a "hypotube"), a polytetrafluoroethylene (PTFE) liner or etched PTFE liner, or any other suitable structure.
  • PTFE polytetrafluoroethylene
  • polymer layer 24 may be suitably molten or sufficiently adapted to flow through holes 22 and into space 26.
  • polymer layer 24 can become disposed within holes 22 and space 26 by heating polymer layer 24 as a part of the extrusion or in a separate manufacturing methodology.
  • a number of other manufacturing methods may be substituted that generally result in an exterior layer becoming disposed over marker band 20, within holes 22, and under marker band 20 (i.e., between marker band 20 and liner 28).
  • Including marker band 20 with holes 22 may be desirable for a number of other reasons.
  • holes 22 may allow for less material to be used for securing marker band 20 to shaft 12 (and/or liner 28).
  • catheter 10 can be manufactured with a decreased outer profile. Reducing the amount of material used may also increase the flexibility, which may be desirable.
  • spaces 26 are formed during the manufacturing process (which can be the case in medical devices that do not include marker band 20) the outer surface of the medical device may form a corresponding outward projection or "bump".
  • FIG. 3 depicts another example medical device 110, this time the distal portion of a guidewire, in order to illustrate that marker band 20 may be used with essentially any other suitable medical device including a guidewire.
  • Guidewire 110 is similar to typical guidewires and may include a central core wire 130 and a polymer jacket 132 disposed over core wire 130. Marker band 20 may be disposed over core wire 130.
  • Polymer jacket 132 may flow through holes 22 in marker band 20 so as to fill space 126 (which is shown larger than it would likely be in practice) and secure marker band 20.
  • Figures 4-9 illustrate a number of different forms of marker band 20 that are contemplated.
  • Figure 4 depicts marker band 20.
  • the general form of marker band 20 and the others described below is that they include a generally tubular or cylindrical body portion 34 defining a central channel 36 and a pair of opposing ends 38a/b.
  • Holes 22 are formed within body portion 34 and generally extend all the way through body portion 34 and into channel 36 so that materials (e.g., polymer layer 24) can flow therethrough and into channel 36.
  • marker band 20 is made from or otherwise includes a radiopaque material.
  • marker band 20 can be disposed over liner 28 (or any other portion of shaft 12) by sliding marker band 20 thereover to the desired position.
  • the desired position for marker band 20 is near the distal end of the device.
  • marker band 20 can be disposed at essentially any position along shaft 12.
  • any number of marker bands 20 may be used, such as 1, 2, 3, 4, 5, 6, or more marker bands. If it is not practical to slide marker band 20 over shaft 12, it may be desirable to form marker band 20 from a generally flat or planar sheet of material and then wrap the material into a generally cylindrical shape (or any other suitable shape) about shaft 12. Typically there will be a relatively tight tolerance between marker band 20 and shaft 12.
  • polymer layer 24 can be disposed over marker band 20. As described above, polymer layer 24 can flow through holes 22 and fill any void 26 that might otherwise be created between marker band 20 and shaft 12. Accordingly, it may be desirable to use a thermoplastic material (i.e., a material whose viscosity changes with the induction of heat), a thermoplastic-like material, a thermoset material, combinations thereof, or the like for polymer layer 24.
  • a thermoplastic material i.e., a material whose viscosity changes with the induction of heat
  • thermoplastic-like material i.e., a material whose viscosity changes with the induction of heat
  • thermoset material i.e., a thermoset material, combinations thereof, or the like for polymer layer 24.
  • suitable polymers may include polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), polyoxymethylene (POM), polybutylene terephthalate (PBT), polyether block ester, polyurethane, polypropylene (PP), polyvinylchloride (PNC), polyether-ester (for example, a polyether-ester elastomer such as AR ⁇ ITEL® available from DSM Engineering Plastics), polyester (for example, a polyester elastomer such as HYTREL® available from DuPont), polyamide (for example, DURETHA ⁇ ® available from Bayer or CRISTAMID® available from Elf Atochem), elastomeric polyamides, block polyamide/ethers, polyether block amide (PEBA, for example, available under the trade name PEBAX®), silicones, polyethylene (PE), Marlex high-density polyethylene, Marlex
  • polymer layer 24 can be blended with a liquid crystal polymer (LCP).
  • LCP liquid crystal polymer
  • the mixture can contain up to about 5% LCP.
  • polymer layer 24 may be or include a coating, for example, a lubricious, a hydrophilic, a protective, or other type of coating may be applied over portions or all of shaft 12 or other portions of catheter 10.
  • Hydrophobic coatings such as fluoropolymers provide a dry lubricity which improves catheter and guidewire handling and device exchanges. Lubricious coatings improve steerability and improve lesion crossing capability.
  • Suitable lubricious polymers are well known in the art and may include silicone and the like, hydrophilic polymers such as high- density polyethylene (HDPE), polytetrafluoroethylene (PTFE), polyarylene oxides, polyvinylpyrolidones, polyvinylalcohols, hydroxy alkyl cellulosics, algins, saccharides, caprolactones, and the like, and mixtures and combinations thereof. Hydrophilic polymers may be blended among themselves or with formulated amounts of water insoluble compounds (including some polymers) to yield coatings with suitable lubricity, bonding, and solubility. Some other examples of such coatings and materials and methods used to create such coatings can be found in U.S. Patent ⁇ os.
  • HDPE high- density polyethylene
  • PTFE polytetrafluoroethylene
  • Hydrophilic polymers may be blended among themselves or with formulated amounts of water insoluble compounds (including some polymers) to yield coatings with suitable lubricity, bonding, and solub
  • FIG. 4 shows that marker band 20 may include two holes 22. However, this need not be the case as other numbers are contemplated.
  • Figure 5 depicts marker band 120 that includes three holes 122 formed therein. It can also be seen that the arrangement of holes 122 can also vary. For example, holes 122 are arranged in a staggered configuration about body portion 134 of marker band 120. The staggered configuration is understood to be an arrangement where no two holes 122 are radially aligned. The shape of the holes defined in the various marker bands may also vary. For example, Figures 4 and 5 depict holes 22/122 as being generally circular.
  • Figure 6 shows marker band 220 having oval or pill-shaped holes 222. It can be appreciated that holes 222 may alternatively be triangular, squared, rectangular, polygonal, irregularly shaped, and the like, or have combinations of these or any other shape.
  • Figure 7 is another example marker band 320 where holes or slits 322 are disposed at the ends 338a b of body portion 334. This embodiment illustrates that slits 322 can be disposed at essentially any position along marker band 320 and still have the desired effects.
  • slits 322 disposed at ends 338a/b allow polymer layer 24 to flow under marker band 320 so as to improve bonding between marker band 320 and shaft 12, as described above.
  • holes or slits 322 can vary in number and arrangement.
  • Figure 7 depicts two pairs of holes 322 (i.e., four holes 322) at each end 338a/b that are radially aligned.
  • holes 322 are also longitudinally aligned with the corresponding holes 322 on the opposite end 338a/b of marker band 320.
  • these holes could alternatively be staggered radially and/or longitudinally as well as vary in number.
  • Figure 8 depicts marker band 420 having three holes 422 disposed at each of ends 438a/b. Holes 422 are arranged in a staggered configuration both radially and longitudinally. It can be appreciated that other embodiments of marker bands are contemplated where the holes are staggered either radially or longitudinally, but not both.
  • Figure 9 depicts another example marker band 520 that is similar to the other bands described herein except that marker band 520 include holes 522a disposed at ends 538a b and holes 522b formed medially within body 534 of marker band 520. Of course, the number, arrangement, and shape of holes 522b (as well as holes 522a) can vary as seen in the aforementioned embodiments.

Abstract

A marker band (20) and medical devices such as catheters and guidewires that include a marker band. A marker band may include a generally cylindrical body portion having one or more slots or openings (22) defined therein. The marker band is configured for being secured to a medical device. Methods of making and using a marker band and a medical device having a marker band are also disclosed.

Description

MEDICAL DEVICE WITH MODIFIED MARKER BAND
Field of the Invention The present invention pertains to marker bands for in-vivo radiographic visualization and medical devices that include a marker band. More particularly, the present invention pertains to marker bands that include one or more holes or slots defined therein and medical devices that include these modified marker bands with polymeric material filling the holes or slots. Background of the Invention A wide variety of radiopaque marker bands have been developed for intracorporal medical devices. Some of the devices that include marker bands are guidewires and catheters. Of the known marker bands and intracorporal medical devices with marker bands, each has certain advantages and disadvantages. There is an ongoing need to provide alternative designs and methods of making and using marker bands and medical devices with marker bands.
Summary of the Invention The invention provides design, material and manufacturing method alternatives for radiopaque marker bands, and medical devices with marker bands. In at least some embodiments, the marker bands include a body region having one or more holes or slots formed therein. The holes may desirably impact the bonding between the marker band and a catheter shaft or other suitable structure. These and some of the other features and characteristics of example embodiments are described in more detail below.
Brief Description of the Drawings Figure 1 is a partial cross-sectional side view of an example medical device having a marker band; Figure 2 is a cross-sectional side view of a portion of the medical device shown in Figure 1 ; Figure 3 is a cross-sectional side view of another example medical device having a marker band; Figure 4 is a perspective view of an example marker band for use with a medical device; Figure 5 is a perspective view of another example marker band for use with a medical device; Figure 6 is a perspective view of another example marker band for use with a medical device; Figure 7 is a perspective view of another example marker band for use with a medical device; Figure 8 is a perspective view of another example marker band for use with a medical device; and Figure 9 is a perspective view of another example marker band for use with a medical device.
Detailed Description of the Preferred Embodiments The following description should be read with reference to the drawings wherein like reference numerals indicate like elements throughout the several views. The detailed description and drawings illustrate example embodiments of the claimed invention. Figure 1 is an example medical device 10, generally depicted as a guide catheter. Catheter 10 may include an elongate catheter shaft 12 having a proximal end region 14 and a distal end region 16. A hub 18 may be coupled to proximal end region 14. Example guide catheters include a tubular lubricious liner that forms a lumen therein. In many embodiments, a reinforcing member extends over the liner for a selected distance from the proximal end to provide stiffness. The reinforcement can be a metallic braid or other means known in the art. An outer polymeric layer generally extends over the braid and inner tubular member. Catheter 10 may also include one or more marker bands 20. Marker bands 20 may be disposed at essentially any position along shaft 12. Although medical device 10 is depicted in Figure 1 as a guide catheter, device 10 could be any other type of catheter including diagnostic or therapeutic catheters such as angioplasty balloon catheters, atherectomy catheters, stent delivery catheters, and the like, or any other suitable device. Furthermore, medical device 10 can generally include any device designed to pass through an opening or body lumen. For example, medical device 10 may comprise an endoscopic device, laproscopic device, embolic protection device, guidewire (as shown in Figure 3), and the like, or any other suitable device. Generally, the purpose for including marker band 20 as a part of catheter 10 or any other medical device is to aid in the visualization of catheter 10 (via any number of known visualization techniques) while the medical device is in use within the body. Typically the visualization techniques used rely on marker band 20 being made from or otherwise including a radiopaque material. Radiopaque materials are understood to be materials capable of producing a relatively bright image on a fluoroscopy screen or another imaging technique during a medical procedure. This relatively bright image aids the user of catheter 10 in determining its location. Some examples of radiopaque materials can include, but are not limited to, gold, platinum, platinum-iridium, palladium, tantalum, tungsten alloy, plastic material loaded with a radiopaque filler, and the like. Marker band 20 may be incorporated into catheter 10 by disposing marker band 20 over catheter shaft 12 during the manufacturing process. This manufacturing step may also include securing the position of marker band 20 relative to shaft 12. Securing the position of marker band 20 may be important for a number of reasons. For example, if marker band 20 is properly secured, the clinician can rely on the known position of marker band 20 in order to accurately assess the position of the remainder of catheter 10. This may include the clinician being able to know the precise location of the distal end of catheter 10 by virtue of visualizing marker band 20 and knowing how far marker band 20 is from the distal end of catheter 10. This may be critically important when catheter 10 is being used in a particular sensitive location, such as the central nervous system, because errantly positioning the catheter 10 could damage sensitive areas. It can be appreciated that given the small scale of catheters and blood vessel, even a very small shift in the position of marker band 20 can have real impact on a medical intervention. Marker band 20 may include a number of refinements, which may provide a number of desirable features to catheter 10 and/or marker band 20 itself. These refinements may include improving the bonding between marker band 20 and shaft 12. For example, marker band 20 may include one or more holes or slits 22 formed therein, as shown in Figure 2. Here it can be seen that holes 22 may improving the bonding of marker band 20 to shaft 12, for example, by interlocking marker band 20 with shaft 12 by including an exterior polymer layer 24. Interlocking may be accomplished by disposing polymer layer 24 over marker band 20, then melting and allowing polymer layer 24 to flow through holes 22 and within the space or void 26 that may exist between marker band 20 and an inner liner or shaft portion 28. Therefore, including slits 22 allows for consistent and predictable reflow of polymer layer 24 that essentially fills space 26. Once the polymer layer 24 is solidified or otherwise hardened, marker band 20 becomes locked into position. As described above, securing the position of marker band 20 may be desirable. The manufacturing steps that can be used to create the interlocking structure or arrangement between marker band 20 and shaft 12 may include extruding polymer layer 24 over marker band 20 and liner 28. Liner 28 may comprise a generally tubular shaft that may be made of a metal, metal alloy, polymer, composite material, and the like, or any other suitable material. For example, liner 28 may comprise a stainless steel or nickel-titanium alloy hypodermic tube (i.e., a "hypotube"), a polytetrafluoroethylene (PTFE) liner or etched PTFE liner, or any other suitable structure. During the extrusion, polymer layer 24 may be suitably molten or sufficiently adapted to flow through holes 22 and into space 26. Alternatively, polymer layer 24 can become disposed within holes 22 and space 26 by heating polymer layer 24 as a part of the extrusion or in a separate manufacturing methodology. It can be appreciated that a number of other manufacturing methods may be substituted that generally result in an exterior layer becoming disposed over marker band 20, within holes 22, and under marker band 20 (i.e., between marker band 20 and liner 28). Including marker band 20 with holes 22 may be desirable for a number of other reasons. For example, holes 22 may allow for less material to be used for securing marker band 20 to shaft 12 (and/or liner 28). Accordingly, catheter 10 can be manufactured with a decreased outer profile. Reducing the amount of material used may also increase the flexibility, which may be desirable. In addition, if spaces 26 are formed during the manufacturing process (which can be the case in medical devices that do not include marker band 20) the outer surface of the medical device may form a corresponding outward projection or "bump". This may create an uneven outer surface that may not be desirable. Therefore, the use of marker band 20 may reduce the prevalence of these "bumps". Moreover, the use of marker band 20 may reduce the amount of manufacturing steps required to build catheter 10, which can simplify the manufacturing process and can reduce manufacturing costs. Figure 3 depicts another example medical device 110, this time the distal portion of a guidewire, in order to illustrate that marker band 20 may be used with essentially any other suitable medical device including a guidewire. Guidewire 110 is similar to typical guidewires and may include a central core wire 130 and a polymer jacket 132 disposed over core wire 130. Marker band 20 may be disposed over core wire 130. Polymer jacket 132 may flow through holes 22 in marker band 20 so as to fill space 126 (which is shown larger than it would likely be in practice) and secure marker band 20. Figures 4-9 illustrate a number of different forms of marker band 20 that are contemplated. For example, Figure 4 depicts marker band 20. The general form of marker band 20 and the others described below is that they include a generally tubular or cylindrical body portion 34 defining a central channel 36 and a pair of opposing ends 38a/b. Holes 22 are formed within body portion 34 and generally extend all the way through body portion 34 and into channel 36 so that materials (e.g., polymer layer 24) can flow therethrough and into channel 36. As described above, marker band 20 is made from or otherwise includes a radiopaque material. Similarly to what is described above, marker band 20 can be disposed over liner 28 (or any other portion of shaft 12) by sliding marker band 20 thereover to the desired position. In some embodiments, the desired position for marker band 20 is near the distal end of the device. However, marker band 20 can be disposed at essentially any position along shaft 12. Moreover, any number of marker bands 20 may be used, such as 1, 2, 3, 4, 5, 6, or more marker bands. If it is not practical to slide marker band 20 over shaft 12, it may be desirable to form marker band 20 from a generally flat or planar sheet of material and then wrap the material into a generally cylindrical shape (or any other suitable shape) about shaft 12. Typically there will be a relatively tight tolerance between marker band 20 and shaft 12. Once properly positioned, polymer layer 24 can be disposed over marker band 20. As described above, polymer layer 24 can flow through holes 22 and fill any void 26 that might otherwise be created between marker band 20 and shaft 12. Accordingly, it may be desirable to use a thermoplastic material (i.e., a material whose viscosity changes with the induction of heat), a thermoplastic-like material, a thermoset material, combinations thereof, or the like for polymer layer 24. Some examples of suitable polymers (including thermoplastics) may include polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), polyoxymethylene (POM), polybutylene terephthalate (PBT), polyether block ester, polyurethane, polypropylene (PP), polyvinylchloride (PNC), polyether-ester (for example, a polyether-ester elastomer such as ARΝITEL® available from DSM Engineering Plastics), polyester (for example, a polyester elastomer such as HYTREL® available from DuPont), polyamide (for example, DURETHAΝ® available from Bayer or CRISTAMID® available from Elf Atochem), elastomeric polyamides, block polyamide/ethers, polyether block amide (PEBA, for example, available under the trade name PEBAX®), silicones, polyethylene (PE), Marlex high-density polyethylene, Marlex low-density polyethylene, linear low density polyethylene (for example, REXELL®), polyethylene terephthalate (PET), polyetheretherketone (PEEK), polyimide (PI), polyetherimide (PEI), polyphenylene sulfide (PPS), polyphenylene oxide (PPO), polysulfone, nylon, perfluoro(propyl vinyl ether) (PFA), low durometer thermal plastics (e.g., 25-50 Sure D), tungsten loaded thermal plastic compound, bismuth subcarbonate loaded thermal plastic compound, barium sulfate loaded thermal plastic compound, other suitable materials, or mixtures, combinations, copolymers thereof, polymer/metal composites, and the like. In some embodiments, polymer layer 24 can be blended with a liquid crystal polymer (LCP). For example, the mixture can contain up to about 5% LCP. Alternatively, polymer layer 24 may be or include a coating, for example, a lubricious, a hydrophilic, a protective, or other type of coating may be applied over portions or all of shaft 12 or other portions of catheter 10. Hydrophobic coatings such as fluoropolymers provide a dry lubricity which improves catheter and guidewire handling and device exchanges. Lubricious coatings improve steerability and improve lesion crossing capability. Suitable lubricious polymers are well known in the art and may include silicone and the like, hydrophilic polymers such as high- density polyethylene (HDPE), polytetrafluoroethylene (PTFE), polyarylene oxides, polyvinylpyrolidones, polyvinylalcohols, hydroxy alkyl cellulosics, algins, saccharides, caprolactones, and the like, and mixtures and combinations thereof. Hydrophilic polymers may be blended among themselves or with formulated amounts of water insoluble compounds (including some polymers) to yield coatings with suitable lubricity, bonding, and solubility. Some other examples of such coatings and materials and methods used to create such coatings can be found in U.S. Patent Νos. 6,139,510 and 5,772,609, which are incorporated herein by reference. Figure 4 shows that marker band 20 may include two holes 22. However, this need not be the case as other numbers are contemplated. For example, Figure 5 depicts marker band 120 that includes three holes 122 formed therein. It can also be seen that the arrangement of holes 122 can also vary. For example, holes 122 are arranged in a staggered configuration about body portion 134 of marker band 120. The staggered configuration is understood to be an arrangement where no two holes 122 are radially aligned. The shape of the holes defined in the various marker bands may also vary. For example, Figures 4 and 5 depict holes 22/122 as being generally circular. This is not intended to be limiting, as any suitable shape may be utilized without departing from the spirit of the invention. For example, Figure 6 shows marker band 220 having oval or pill-shaped holes 222. It can be appreciated that holes 222 may alternatively be triangular, squared, rectangular, polygonal, irregularly shaped, and the like, or have combinations of these or any other shape. Figure 7 is another example marker band 320 where holes or slits 322 are disposed at the ends 338a b of body portion 334. This embodiment illustrates that slits 322 can be disposed at essentially any position along marker band 320 and still have the desired effects. For example, slits 322 disposed at ends 338a/b allow polymer layer 24 to flow under marker band 320 so as to improve bonding between marker band 320 and shaft 12, as described above. Similar to what is described above, holes or slits 322 can vary in number and arrangement. For example, Figure 7 depicts two pairs of holes 322 (i.e., four holes 322) at each end 338a/b that are radially aligned. In addition, holes 322 are also longitudinally aligned with the corresponding holes 322 on the opposite end 338a/b of marker band 320. However, these holes could alternatively be staggered radially and/or longitudinally as well as vary in number. For example, Figure 8 depicts marker band 420 having three holes 422 disposed at each of ends 438a/b. Holes 422 are arranged in a staggered configuration both radially and longitudinally. It can be appreciated that other embodiments of marker bands are contemplated where the holes are staggered either radially or longitudinally, but not both. Figure 9 depicts another example marker band 520 that is similar to the other bands described herein except that marker band 520 include holes 522a disposed at ends 538a b and holes 522b formed medially within body 534 of marker band 520. Of course, the number, arrangement, and shape of holes 522b (as well as holes 522a) can vary as seen in the aforementioned embodiments. It should be understood that this disclosure is, in many respects, only illustrative. Changes may be made in details, particularly in matters of shape, size, and arrangement of steps without exceeding the scope of the invention. The invention's scope is, of course, defined in the language in which the appended claims are expressed.

Claims

What is claimed is: 1. A medical device, comprising: a tubular member having a proximal end region and a distal end region; a radiopaque marker band disposed over the tubular member, the marker band having an outer surface and an inner surface with one or more openings through the outer surface of the marker band; and an outer layer disposed over the outer surface of the marker band, wherein the outer layer extends from the outer surface of the marker band, into the openings in the marker band.
2. The medical device of claim 1, wherein the openings are defined by generally circular holes formed in the marker band.
3. The medical device of claim 1, wherein the openings are defined by generally oval holes formed in the marker band.
4. The medical device of claim 1, wherein the marker band includes two or more openings.
5. The medical device of claim 4, wherein the openings are aligned on opposite sides of the marker band.
6. The medical device of claim 4, wherein on opposite sides of the marker band the openings are offset.
7. The medical device of claim 1 , wherein the outer layer extends through the openings and under a portion of the inner surface of the marker band.
8. The medical device of claim 1, wherein the marker band includes a proximal end region and a distal end region, and wherein the openings are defined by one or more slits in the proximal end region, the distal end region, or both.
9. The medical device of claim 8, wherein the slits are in the proximal end region and the distal end region, and wherein the slits in the proximal end region are aligned with the slits in the distal end region.
10. The medical device of claim 8, wherein the slits are in the proximal end region and the distal end region, and wherein the slits in the proximal end region are staggered relative to the slits in the distal end region.
11. The medical device of claim 1, wherein the tubular member includes an outer surface, and wherein the outer surface is defined by a fluorocarbon polymer.
12. A medical device, comprising: an elongate core member having a proximal end region and a distal end region; a radiopaque marker band disposed over the core member, the marker band having one or more slits defined therein, the marker band having an inner surface and an outer surface; and a coating disposed over the outer surface marker band, wherein the coating extends from the outer surface of the marker band.
13. The medical device of claim 12, wherein the core member forms a catheter shaft.
14. The medical device of claim 12, wherein the core member forms a guidewire.
15. The medical device of claim 12, wherein the coating extends through the slit of the marker band and along a portion of the inner surface of the marker band.
16. A radiopaque marker band adapted for being secured to an intravascular medical device, comprising: a generally cylindrical body section, the body section having a first slit and a second slit defined therein; and wherein the first slit and the second slit are axially aligned on opposing sides of the body section.
17. The marker band of claim 16, wherein the body section includes a proximal end region and a distal end region, and wherein the body section includes one or more slits in the proximal end region, the distal end region, or both.
18. The marker band of claim 17, wherein the slits are defined in the proximal end region and the distal end region, and wherein the slits in the proximal end region are aligned with the slits in the distal end region.
19. The medical device of claim 17, wherein the slits are defined in the proximal end region and the distal end region, and wherein the slits in the proximal end region are staggered relative to the slits in the distal end region.
20. A radiopaque marker band adapted for being secured to an intravascular medical device, comprising: a generally cylindrical body section having a first end and a second end; one or more longitudinal deflections defined in the first end; and one or more longitudinal deflections defined in the second end.
21. The marker band of claim 20, wherein the body section defines a plurality of slits defined therein.
22. A method for manufacturing a medical device, comprising the steps of: providing an elongate core member; disposing a marker band over the core member, the marker band having one or more slits defined therein, a top surface, and a bottom surface; disposing a coating over the core member and the marker band; and wherein the step of disposing a coating over the core member and the marker band includes disposing the coating on the top surface of the marker band, within the slits, and along the bottom surface of the marker band between the marker band and the core member.
PCT/US2004/041114 2003-12-29 2004-12-08 Medical device with modified marker band WO2005065584A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006547064A JP4980070B2 (en) 2003-12-29 2004-12-08 Medical device with improved marker band
CA002552115A CA2552115A1 (en) 2003-12-29 2004-12-08 Medical device with modified marker band
EP04813436.5A EP1703861B1 (en) 2003-12-29 2004-12-08 Medical device with modified marker band

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/749,499 2003-12-29
US10/749,499 US7641647B2 (en) 2003-12-29 2003-12-29 Medical device with modified marker band

Publications (1)

Publication Number Publication Date
WO2005065584A1 true WO2005065584A1 (en) 2005-07-21

Family

ID=34711079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/041114 WO2005065584A1 (en) 2003-12-29 2004-12-08 Medical device with modified marker band

Country Status (5)

Country Link
US (1) US7641647B2 (en)
EP (1) EP1703861B1 (en)
JP (1) JP4980070B2 (en)
CA (1) CA2552115A1 (en)
WO (1) WO2005065584A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009537244A (en) * 2006-05-16 2009-10-29 セント・ジュード・メディカル・エイトリアル・フィブリレーション・ディヴィジョン・インコーポレーテッド Steerable catheter using a flat pull wire and method of making the same
JP2010520026A (en) * 2007-03-06 2010-06-10 ウィリアム・エイ・クック・オーストラリア・プロプライエタリー・リミテッド Intravascular placement device
US8734699B2 (en) 2006-05-16 2014-05-27 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires
US11160952B2 (en) 2017-08-25 2021-11-02 Teleflex Life Sciences Limited Catheter

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8177762B2 (en) 1998-12-07 2012-05-15 C. R. Bard, Inc. Septum including at least one identifiable feature, access ports including same, and related methods
US7879024B2 (en) * 2003-06-26 2011-02-01 St. Jude Medical, Atrial Fibrillation Division, Inc. Splittable cannula having radiopaque marker
US7641647B2 (en) * 2003-12-29 2010-01-05 Boston Scientific Scimed, Inc. Medical device with modified marker band
US7947022B2 (en) 2005-03-04 2011-05-24 C. R. Bard, Inc. Access port identification systems and methods
US7785302B2 (en) 2005-03-04 2010-08-31 C. R. Bard, Inc. Access port identification systems and methods
US8029482B2 (en) 2005-03-04 2011-10-04 C. R. Bard, Inc. Systems and methods for radiographically identifying an access port
US9474888B2 (en) 2005-03-04 2016-10-25 C. R. Bard, Inc. Implantable access port including a sandwiched radiopaque insert
EP1874393B1 (en) 2005-04-27 2017-09-06 C.R.Bard, Inc. Infusion apparatuses
US10307581B2 (en) 2005-04-27 2019-06-04 C. R. Bard, Inc. Reinforced septum for an implantable medical device
EP2939703B1 (en) 2005-04-27 2017-03-01 C. R. Bard, Inc. Infusion apparatuses and related methods
US9056180B2 (en) * 2005-05-12 2015-06-16 Boston Scientific Scimed, Inc. Tip with encapsulated marker band
US7837652B2 (en) * 2006-06-12 2010-11-23 General Electric Company Pressure infusion device and process for making a pressure infusion device
US9642986B2 (en) 2006-11-08 2017-05-09 C. R. Bard, Inc. Resource information key for an insertable medical device
US9265912B2 (en) 2006-11-08 2016-02-23 C. R. Bard, Inc. Indicia informative of characteristics of insertable medical devices
WO2008064111A2 (en) * 2006-11-17 2008-05-29 Boston Scientific Limited Radiopaque medical devices
US8545548B2 (en) * 2007-03-30 2013-10-01 DePuy Synthes Products, LLC Radiopaque markers for implantable stents and methods for manufacturing the same
US20080243069A1 (en) * 2007-04-02 2008-10-02 Medtronic Vascular, Inc. Self-Crimping Radiopaque marker
CA2692142C (en) 2007-06-20 2016-07-26 Medical Components, Inc. Venous access port with molded and/or radiopaque indicia
WO2009012395A1 (en) 2007-07-19 2009-01-22 Innovative Medical Devices, Llc Venous access port assembly with x-ray discernable indicia
ES2650800T3 (en) 2007-07-19 2018-01-22 Medical Components, Inc. Venous reservoir set with X-ray discernible indications
US9579496B2 (en) 2007-11-07 2017-02-28 C. R. Bard, Inc. Radiopaque and septum-based indicators for a multi-lumen implantable port
BRPI0919890B8 (en) 2008-10-31 2019-09-24 Bard Inc C R access port to provide subcutaneous access to a patient, and force injectable access port
US11890443B2 (en) 2008-11-13 2024-02-06 C. R. Bard, Inc. Implantable medical devices including septum-based indicators
US8932271B2 (en) 2008-11-13 2015-01-13 C. R. Bard, Inc. Implantable medical devices including septum-based indicators
JP2011010787A (en) * 2009-07-01 2011-01-20 Kaneka Corp Catheter
US8715244B2 (en) 2009-07-07 2014-05-06 C. R. Bard, Inc. Extensible internal bolster for a medical device
JP5473443B2 (en) * 2009-07-15 2014-04-16 株式会社カネカ catheter
WO2011062750A1 (en) 2009-11-17 2011-05-26 C. R. Bard, Inc. Overmolded access port including anchoring and identification features
JP5814530B2 (en) * 2010-09-08 2015-11-17 株式会社カネカ Medical catheter
US9014816B2 (en) 2010-10-07 2015-04-21 W. C. Heraeus Gmbh Medical lead with filler layer
JP5736735B2 (en) * 2010-11-09 2015-06-17 住友ベークライト株式会社 catheter
USD682416S1 (en) 2010-12-30 2013-05-14 C. R. Bard, Inc. Implantable access port
USD676955S1 (en) 2010-12-30 2013-02-26 C. R. Bard, Inc. Implantable access port
US8652098B2 (en) * 2011-03-08 2014-02-18 Abbott Cardiovascular Systems Inc. Catheter with radiopaque coil
US8696731B2 (en) * 2011-06-10 2014-04-15 DePuy Synthes Products, LLC Lock/floating marker band on pusher wire for self-expanding stents or medical devices
US20130197353A1 (en) * 2012-01-27 2013-08-01 Randolf Von Oepen Radiopaque marker for a catheter
US9066828B2 (en) * 2012-06-15 2015-06-30 Trivascular, Inc. Endovascular delivery system with flexible and torqueable hypotube
US9233015B2 (en) 2012-06-15 2016-01-12 Trivascular, Inc. Endovascular delivery system with an improved radiopaque marker scheme
CN104768603B (en) * 2012-08-01 2017-10-27 波士顿科学西美德公司 Guiding extension conduit and its manufacture method
US9387106B2 (en) 2013-02-28 2016-07-12 Medtronic Vascular, Inc. Medical device delivery systems and methods of use thereof
US10561509B2 (en) 2013-03-13 2020-02-18 DePuy Synthes Products, Inc. Braided stent with expansion ring and method of delivery
US10149700B2 (en) * 2013-08-12 2018-12-11 Jan R. Lau 3 dimensional simultaneous multiple core biopsy or fiducial marker placement device and methods
WO2015059843A1 (en) * 2013-10-25 2015-04-30 アイハート・メディカル株式会社 Attenuated vascular endoscopic catheter and flush catheter
US10206796B2 (en) 2014-08-27 2019-02-19 DePuy Synthes Products, Inc. Multi-strand implant with enhanced radiopacity
US10799672B2 (en) 2015-10-16 2020-10-13 Covidien Lp Catheter body structural support member including a polymer hypotube
US10076428B2 (en) 2016-08-25 2018-09-18 DePuy Synthes Products, Inc. Expansion ring for a braided stent
US10292851B2 (en) 2016-09-30 2019-05-21 DePuy Synthes Products, Inc. Self-expanding device delivery apparatus with dual function bump
EP3528885B1 (en) 2016-10-18 2024-03-13 Boston Scientific Scimed Inc. Guide extension catheter
US11058491B2 (en) * 2017-03-24 2021-07-13 The Spectranetics Corporation Laser energy delivery devices including distal tip orientation indicators
US11364077B2 (en) * 2017-03-24 2022-06-21 The Spectranetics Corporation Laser energy delivery devices including distal tip orientation indicators
US11911573B2 (en) 2018-06-05 2024-02-27 Medtronic Vascular, Inc. Medical catheter
EP3801724A1 (en) 2018-06-05 2021-04-14 Medtronic Vascular Inc. Medical catheter
AU2019204522A1 (en) 2018-07-30 2020-02-13 DePuy Synthes Products, Inc. Systems and methods of manufacturing and using an expansion ring
US10456280B1 (en) 2018-08-06 2019-10-29 DePuy Synthes Products, Inc. Systems and methods of using a braided implant
US10278848B1 (en) 2018-08-06 2019-05-07 DePuy Synthes Products, Inc. Stent delivery with expansion assisting delivery wire
US11039944B2 (en) 2018-12-27 2021-06-22 DePuy Synthes Products, Inc. Braided stent system with one or more expansion rings
EP4225133A1 (en) 2020-10-07 2023-08-16 Canary Medical Switzerland AG Providing medical devices with sensing functionality
CN115212019B (en) * 2022-07-20 2023-10-13 聚辉医疗科技(深圳)有限公司 Vascular stent and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303487A2 (en) * 1987-08-14 1989-02-15 C.R. Bard, Inc. Soft tip catheter
US4938220A (en) * 1986-08-01 1990-07-03 Advanced Cardiovascular Systems, Inc. Catheter with split tip marker and method of manufacture
US5429617A (en) * 1993-12-13 1995-07-04 The Spectranetics Corporation Radiopaque tip marker for alignment of a catheter within a body
US6277108B1 (en) 1999-06-04 2001-08-21 Medamicus, Inc. Introducer with location marker
US20020095205A1 (en) * 2001-01-12 2002-07-18 Edwin Tarun J. Encapsulated radiopaque markers

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041931A (en) 1976-05-17 1977-08-16 Elliott Donald P Radiopaque anastomosis marker
US4419095A (en) * 1980-05-14 1983-12-06 Shiley, Inc. Cannula with radiopaque tip
US5045071A (en) * 1985-12-17 1991-09-03 Mbo Laboratories, Inc. Double wall catheter with internal printing and embedded marker
US5024232A (en) * 1986-10-07 1991-06-18 The Research Foundation Of State University Of Ny Novel radiopaque heavy metal polymer complexes, compositions of matter and articles prepared therefrom
US4763647A (en) 1987-01-06 1988-08-16 C. R. Bard, Inc. Dual coil steerable guidewire
US5484425A (en) * 1990-05-01 1996-01-16 Cathco, Inc. Radiopaque non-kinking thin-walled introducer sheath
US5034005A (en) * 1990-07-09 1991-07-23 Appling William M Radiopaque marker
US5253653A (en) 1991-10-31 1993-10-19 Boston Scientific Corp. Fluoroscopically viewable guidewire for catheters
US5368048A (en) 1993-04-19 1994-11-29 Stoy; George P. Method of making radio-opaque tipped, sleeved guidewire and product
US5772609A (en) 1993-05-11 1998-06-30 Target Therapeutics, Inc. Guidewire with variable flexibility due to polymeric coatings
US5300048A (en) * 1993-05-12 1994-04-05 Sabin Corporation Flexible, highly radiopaque plastic material catheter
US5429597A (en) 1994-03-01 1995-07-04 Boston Scientific Corporation Kink resistant balloon catheter and method for use
US5948489A (en) * 1994-03-03 1999-09-07 Cordis Corporation Catheter having extruded, flexible, pliable and compliant marker band
US5606981A (en) * 1994-03-11 1997-03-04 C. R. Bard, Inc. Catheter guidewire with radiopaque markers
DE69510986T2 (en) * 1994-04-25 1999-12-02 Advanced Cardiovascular System Radiation-opaque stent markings
US6139510A (en) 1994-05-11 2000-10-31 Target Therapeutics Inc. Super elastic alloy guidewire
US5558652A (en) * 1994-10-06 1996-09-24 B. Braun Medical, Inc. Introducer with radiopaque marked tip and method of manufacture therefor
US5549552A (en) 1995-03-02 1996-08-27 Scimed Life Systems, Inc. Balloon dilation catheter with improved pushability, trackability and crossability
US5724989A (en) * 1995-06-20 1998-03-10 The Microspring Company, Inc. Radiopaque medical devices
US5836892A (en) * 1995-10-30 1998-11-17 Cordis Corporation Guidewire with radiopaque markers
NL1002898C2 (en) * 1996-04-18 1997-10-21 Cordis Europ Catheter with marker sleeve.
US5759174A (en) 1997-01-29 1998-06-02 Cathco, Inc. Angioplasty balloon with an expandable external radiopaque marker band
US5921978A (en) 1997-06-20 1999-07-13 Ep Technologies, Inc. Catheter tip steering plane marker
US5908413A (en) * 1997-10-03 1999-06-01 Scimed Life Systems, Inc. Radiopaque catheter and method of manufacture thereof
US6179811B1 (en) 1997-11-25 2001-01-30 Medtronic, Inc. Imbedded marker and flexible guide wire shaft
US6036682A (en) * 1997-12-02 2000-03-14 Scimed Life Systems, Inc. Catheter having a plurality of integral radiopaque bands
US6285903B1 (en) * 1998-06-30 2001-09-04 Eclipse Surgical Technologies, Inc. Intracorporeal device with radiopaque marker
US6949114B2 (en) * 1998-11-06 2005-09-27 Neomend, Inc. Systems, methods, and compositions for achieving closure of vascular puncture sites
US6210396B1 (en) * 1999-06-24 2001-04-03 Medtronic, Inc. Guiding catheter with tungsten loaded band
US6540721B1 (en) 1999-12-29 2003-04-01 Advanced Cardiovascular Systems, Inc. Balloon catheter with flexible radiopaque polymeric marker
US6520934B1 (en) * 1999-12-29 2003-02-18 Advanced Cardiovascular Systems, Inc. Catheter assemblies with flexible radiopaque marker
JP3915862B2 (en) * 2000-02-09 2007-05-16 テルモ株式会社 catheter
WO2003061502A1 (en) * 2000-10-26 2003-07-31 Scimed Life Systems, Inc. Stent having radiopaque markers and method of fabricating the same
US20020156460A1 (en) * 2001-04-20 2002-10-24 Scimed Life Systems, Inc Microcatheter with improved distal tip and transitions
US20030125711A1 (en) 2001-10-04 2003-07-03 Eidenschink Tracee E.J. Flexible marker band
US6733489B2 (en) * 2002-09-26 2004-05-11 Angiodynamics, Inc. Vascular orientation marker for determining the orientation of a blood vessel
US6970734B2 (en) * 2002-12-02 2005-11-29 Boston Scientific Scimed, Inc. Flexible marker bands
US6945956B2 (en) * 2002-12-23 2005-09-20 Medtronic, Inc. Steerable catheter
US20050255317A1 (en) * 2003-09-22 2005-11-17 Advanced Cardiovascular Systems, Inc. Polymeric marker with high radiopacity for use in medical devices
US7641647B2 (en) * 2003-12-29 2010-01-05 Boston Scientific Scimed, Inc. Medical device with modified marker band

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938220A (en) * 1986-08-01 1990-07-03 Advanced Cardiovascular Systems, Inc. Catheter with split tip marker and method of manufacture
EP0303487A2 (en) * 1987-08-14 1989-02-15 C.R. Bard, Inc. Soft tip catheter
US5429617A (en) * 1993-12-13 1995-07-04 The Spectranetics Corporation Radiopaque tip marker for alignment of a catheter within a body
US6277108B1 (en) 1999-06-04 2001-08-21 Medamicus, Inc. Introducer with location marker
US20020095205A1 (en) * 2001-01-12 2002-07-18 Edwin Tarun J. Encapsulated radiopaque markers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009537244A (en) * 2006-05-16 2009-10-29 セント・ジュード・メディカル・エイトリアル・フィブリレーション・ディヴィジョン・インコーポレーテッド Steerable catheter using a flat pull wire and method of making the same
US8734699B2 (en) 2006-05-16 2014-05-27 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires
US10099036B2 (en) 2006-05-16 2018-10-16 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires
US10912923B2 (en) 2006-05-16 2021-02-09 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires
JP2010520026A (en) * 2007-03-06 2010-06-10 ウィリアム・エイ・クック・オーストラリア・プロプライエタリー・リミテッド Intravascular placement device
US11160952B2 (en) 2017-08-25 2021-11-02 Teleflex Life Sciences Limited Catheter

Also Published As

Publication number Publication date
US7641647B2 (en) 2010-01-05
EP1703861A1 (en) 2006-09-27
CA2552115A1 (en) 2005-07-21
JP4980070B2 (en) 2012-07-18
EP1703861B1 (en) 2017-11-01
US20050148866A1 (en) 2005-07-07
JP2007520266A (en) 2007-07-26

Similar Documents

Publication Publication Date Title
EP1703861B1 (en) Medical device with modified marker band
EP1429831B1 (en) Microcatheter with improved distal tip and transitions
EP1379311B1 (en) Microcatheter with improved distal tip and transitions
US7459080B2 (en) Flexible tube for cartridge filter
EP2068994B1 (en) Catheter shaft including a metallic tapered region
US7841994B2 (en) Medical device for crossing an occlusion in a vessel
US8556914B2 (en) Medical device including structure for crossing an occlusion in a vessel
US7553287B2 (en) Guidewire having an embedded matrix polymer
EP3297717A1 (en) Medical device having outer polymeric member including one or more cuts
US20050096665A1 (en) Guidewire having a helically contoured portion
US20180318551A1 (en) Catheter with improved torque response

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2552115

Country of ref document: CA

Ref document number: 2006547064

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Ref document number: DE

REEP Request for entry into the european phase

Ref document number: 2004813436

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2004813436

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004813436

Country of ref document: EP