EP0989820A4 - Cable de guidage a ame de verre pouvant etre utilise dans des applications de resonance magnetique et possedant des fibres de renfort - Google Patents

Cable de guidage a ame de verre pouvant etre utilise dans des applications de resonance magnetique et possedant des fibres de renfort

Info

Publication number
EP0989820A4
EP0989820A4 EP98926103A EP98926103A EP0989820A4 EP 0989820 A4 EP0989820 A4 EP 0989820A4 EP 98926103 A EP98926103 A EP 98926103A EP 98926103 A EP98926103 A EP 98926103A EP 0989820 A4 EP0989820 A4 EP 0989820A4
Authority
EP
European Patent Office
Prior art keywords
guidewire
magnetic
core
distal tip
reinforcing fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98926103A
Other languages
German (de)
English (en)
Other versions
EP0989820A1 (fr
Inventor
Wenzel Franz Hurtak
Frans Mous
Cornelis Philipus Nap
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cordis Corp
Original Assignee
Cordis Corp
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 Cordis Corp filed Critical Cordis Corp
Publication of EP0989820A1 publication Critical patent/EP0989820A1/fr
Publication of EP0989820A4 publication Critical patent/EP0989820A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, 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
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09058—Basic structures of guide wires
    • A61M2025/09075—Basic structures of guide wires having a core without a coil possibly combined with a sheath

Definitions

  • the present invention relates generally to intravascular medical devices, and more particularly, to a medical guidewire having reinforcing fibers for use with magnetic resonance
  • Such guidewires may be used in medical procedures for both diagnostic and
  • Guidewires are used in a wide variety of medical procedures, most often in conjunction with one or more other medical devices, including catheters.
  • catheters may be any of various types, such as angiography or angioplasty, but should in any event have a tubular lumen
  • guidewires are often long, thin metal wires that generally taper from one diameter at a proximal end which remains outside the body of the patient, to a smaller diameter at the opposite distal end.
  • vascular guidewires are often more than five feet long and have a maximum outer diameter of approximately 0.035 inches. The diameter of the core
  • wire is generally ground down precisely in a series of alternating tapering portions and constant
  • the guidewire distal tip is usually very flexible, both to avoid vascular trauma and so
  • Guidewires are designed to resist this twisting force or torsion, so that as the guidewire
  • the distal tip tends to rotate through about the same angle.
  • a floppy spring is often affixed to the extreme distal tip of the guidewire for flexibility.
  • the core wire tapers in steps to a distal portion
  • the flexible spring at the guidewire distal tip is arranged to selectively control its brightness on an X-ray
  • MRI magnetic resonance imaging
  • MR magnetic resonance
  • the present invention provides a guidewire compatible for use with magnetic resonance systems, made from a non-metallic material with a high specific electric impedance. Accordingly, this material will resist any electrical eddy currents in the guidewire from being generated by variations in the high-frequency field.
  • An acceptable class of materials is glass, which are all electrical insulators. A guidewire having a major portion constructed of a glass material should therefore have the advantages of not disturbing the MR
  • Figure 1 is a perspective view of a guidewire for use with magnetic resonance systems, arranged according to the present invention
  • Figure 2 is a cross-sectional view of an intermediate portion of the guidewire of Figure 1;
  • Figure 3 is a cross-sectional view of a proximal end portion of the guidewire of Figure
  • Figure 4 is a perspective view of a guidewire for use with magnetic resonance
  • Figures 5-7 are cross-sectional views of a portion of various guidewires arranged
  • Figure 8 is a perspective view of a guidewire for use with magnetic resonance
  • Figure 9 is a cross-sectional view of an intermediate portion of the guidewire of
  • Figure 10 is a cross-sectional view of a proximal end portion of the guidewire of Figure 8.
  • Figures 1 1-13 are side elevation views of distal portions of guidewires arranged
  • FIG. 1 a perspective view of a stent according to a preferred embodiment of the present invention is shown generally at 1.
  • the medical guidewire 1 is intended for use in intravascular medical procedures involving the use of magnetic resonance
  • Guidewire 1 is constructed of a basic body 2 and a distal tip portion 3.
  • the distal tip of guidewire 1 includes several markers 4
  • the proximal portion of the basic body 2 is illustrated in Figure 3, and incorporates a
  • the coated glass body 5 extends for substantially the length of the guidewire and is
  • Markers 4 are visible under MR because they are susceptible to slightly distorting the uniformity of the magnetic resonance field, causing the magnetic field to become what is called “inhomogeneous.”
  • the material of the markers 4 is selected specifically for this
  • Dysprosium Oxide (Dy O 3 ).
  • the glass body 5 is preferably made of a glass material having a high specific electric impedance, such as fiberglass, silica, or quartz.
  • the coating 6 adds strength to the glass core 5, in that the coating allows the glass
  • the coated glass core 5 may endure strain as high as 12%.
  • the outer polymer sheath 7 may be constructed from any of a variety of materials, including nylon.
  • An additional advantage of the design of the present invention is that the polymer sheath 7 can maintain the physical integrity of the guidewire, even if the glass core 5
  • the polymer sheath 7 may be provided with a
  • lubricious or hydrophilic coating as generally known in the art.
  • the distal tip portion 3 of the guidewire 1 may be formed of a plastic, as shown in Figure 2, or of a metal as shown in Figures 8-13.
  • the outer diameter of guidewire 1 preferably tapers to a smaller diameter toward the distal tip, as illustrated in Figures 8-13.
  • the metal tip portion may be stainless steel or more preferably nickel titanium, or nitinol.
  • the length of the metal distal tip segment is substantially shorter than the wavelength of the magnetic resonance field in which the guidewire is used.
  • the glue 8 is preferably of a type that cures upon exposure to ultraviolet light. Accordingly, the polymer sheath 7 should be transparent, to allow the glue 8 to be exposed to the ultraviolet light after portions of the guidewire 1 are assembled as shown in Figures 1-3.
  • An embodiment of the present invention is depicted in Figures 4-7, in which a
  • guidewire 11 has a proximal portion 12 and a distal tip portion 13.
  • Guidewire 11 has a
  • fibers 18 may be embedded in a polymer matrix 19.
  • a multiplicity of short reinforcing fibers 20 can be provided in a polymer matrix 21 ,
  • the present invention includes the provision of reinforcing fibers in either the core of the guidewire or the plastic sheath surrounding the
  • the reinforcing fibers may be of any suitable material, such as carbon, borium,
  • the guidewire of the present invention may also be constructed of more than one glass
  • core body all of which may be clad as a unit with a single protective coating.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Pathology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

Cette invention concerne un câble de guidage (1) à usage médical que l'on utilise lors de procédures médicales intra-vasculaires faisant appel à des systèmes de résonance magnétique. Ce câble de guidage (1) possède un corps (2), ainsi qu'une partie extrémité distale (3). Plusieurs marqueurs (4) sont intégrés dans l'extrémité distale (3) du câble de guidage (1). Lors d'applications où l'on utilise la résonance magnétique, ces marqueurs sont plus visibles que le reste du câble de guidage.
EP98926103A 1997-06-06 1998-05-28 Cable de guidage a ame de verre pouvant etre utilise dans des applications de resonance magnetique et possedant des fibres de renfort Withdrawn EP0989820A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1006254A NL1006254C2 (nl) 1997-06-06 1997-06-06 Met MRI-verenigbare geleidingsdraad.
NL1006254 1997-06-06
PCT/US1998/010864 WO1998055016A1 (fr) 1997-06-06 1998-05-28 Cable de guidage a ame de verre pouvant etre utilise dans des applications de resonance magnetique et possedant des fibres de renfort

Publications (2)

Publication Number Publication Date
EP0989820A1 EP0989820A1 (fr) 2000-04-05
EP0989820A4 true EP0989820A4 (fr) 2001-01-24

Family

ID=19765120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98926103A Withdrawn EP0989820A4 (fr) 1997-06-06 1998-05-28 Cable de guidage a ame de verre pouvant etre utilise dans des applications de resonance magnetique et possedant des fibres de renfort

Country Status (4)

Country Link
EP (1) EP0989820A4 (fr)
AU (1) AU7801798A (fr)
NL (1) NL1006254C2 (fr)
WO (1) WO1998055016A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19958408A1 (de) * 1999-12-02 2001-06-07 Philips Corp Intellectual Pty MR-Anordnung und MR-Verfahren zur Lokalisierung und/oder Visualisierung eines mit einer passiven Magnetvorrichtung ausgestatteten medizinischen Instruments
US20030060731A1 (en) * 2001-01-26 2003-03-27 Fleischhacker Mark G. Non-metallic guide wire
US7347829B2 (en) * 2002-10-07 2008-03-25 Suros Surgical Systems, Inc. Introduction system for minimally invasive surgical instruments
US7077811B2 (en) 2002-12-23 2006-07-18 Scimed Life Systems, Inc. Guidewire tip construction
US7758520B2 (en) 2003-05-27 2010-07-20 Boston Scientific Scimed, Inc. Medical device having segmented construction
US8932233B2 (en) 2004-05-21 2015-01-13 Devicor Medical Products, Inc. MRI biopsy device
US9638770B2 (en) 2004-05-21 2017-05-02 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating an imageable penetrating portion
US7708751B2 (en) 2004-05-21 2010-05-04 Ethicon Endo-Surgery, Inc. MRI biopsy device
US8043316B2 (en) 2008-05-02 2011-10-25 Suros Surgical Systems, Inc. Adjustable spacer
CN102625669B (zh) 2009-06-08 2015-09-23 核磁共振成像介入技术有限公司 能够近实时地跟踪和生成柔性体内装置的动态可视化的mri导向的介入系统
WO2010148083A2 (fr) 2009-06-16 2010-12-23 Surgivision, Inc. Dispositifs guidés par irm et systèmes d'intervention guidés par irm qui peuvent suivre et générer des visualisations dynamiques des dispositifs presque en temps réel
DE102012214785A1 (de) * 2012-08-20 2014-02-20 Epflex Feinwerktechnik Gmbh Medizinischer Führungsdraht mit MR-Marker
DE102012222356B4 (de) * 2012-12-05 2017-03-16 Epflex Feinwerktechnik Gmbh Medizinisches Steinfangkorbinstrument
WO2019109063A2 (fr) 2017-12-03 2019-06-06 Paul Ram H Jr Guide-fil d'intervention compatible avec l'irm

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832023A (en) * 1987-06-03 1989-05-23 Mcm Laboratories, Inc. Method and apparatus for reducing blockage in body channels
EP0317091A2 (fr) * 1987-11-18 1989-05-24 BAXTER INTERNATIONAL INC. (a Delaware corporation) Fil de guidage pour utilisation médicale
EP0519604A2 (fr) * 1991-06-18 1992-12-23 Scimed Life Systems, Inc. Fil de guidage intravasculaire et son procédé de fabrication
US5217026A (en) * 1992-04-06 1993-06-08 Kingston Technologies, Inc. Guidewires with lubricious surface and method of their production
US5251640A (en) * 1992-03-31 1993-10-12 Cook, Incorporated Composite wire guide shaft
EP0597341A1 (fr) * 1986-06-02 1994-05-18 Target Therapeutics, Inc. Cathéter
WO1996026671A1 (fr) * 1995-02-28 1996-09-06 Boston Scientific Corporation Instruments en polymere permettant de transmettre un couple
US5690120A (en) * 1996-05-24 1997-11-25 Sarcos, Inc. Hybrid catheter guide wire apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5078700A (en) * 1990-03-19 1992-01-07 Becton, Dickinson And Company Liquid crystalline catheter
JPH0523399A (ja) * 1991-07-22 1993-02-02 Nippon Zeon Co Ltd 電極付き医療用具
FR2685989A1 (fr) * 1992-01-08 1993-07-09 Distr App Medicaux Off Dispositif de filtrage d'emissions radiofrequence parasites, notamment en imagerie medicale par resonance magnetique.
US5353808A (en) * 1992-03-04 1994-10-11 Cordis Corporation Guidewire having distally located marker segment
FR2704131B1 (fr) * 1993-04-22 1995-06-30 Odam Dispositif capteur pour électrocardiogramme.
US5769796A (en) * 1993-05-11 1998-06-23 Target Therapeutics, Inc. Super-elastic composite guidewire
US5706827A (en) * 1994-09-21 1998-01-13 Scimed Life Systems, Inc. Magnetic lumen catheter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0597341A1 (fr) * 1986-06-02 1994-05-18 Target Therapeutics, Inc. Cathéter
US4832023A (en) * 1987-06-03 1989-05-23 Mcm Laboratories, Inc. Method and apparatus for reducing blockage in body channels
EP0317091A2 (fr) * 1987-11-18 1989-05-24 BAXTER INTERNATIONAL INC. (a Delaware corporation) Fil de guidage pour utilisation médicale
EP0519604A2 (fr) * 1991-06-18 1992-12-23 Scimed Life Systems, Inc. Fil de guidage intravasculaire et son procédé de fabrication
US5251640A (en) * 1992-03-31 1993-10-12 Cook, Incorporated Composite wire guide shaft
US5217026A (en) * 1992-04-06 1993-06-08 Kingston Technologies, Inc. Guidewires with lubricious surface and method of their production
WO1996026671A1 (fr) * 1995-02-28 1996-09-06 Boston Scientific Corporation Instruments en polymere permettant de transmettre un couple
US5690120A (en) * 1996-05-24 1997-11-25 Sarcos, Inc. Hybrid catheter guide wire apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9855016A1 *

Also Published As

Publication number Publication date
WO1998055016A1 (fr) 1998-12-10
EP0989820A1 (fr) 2000-04-05
NL1006254C2 (nl) 1998-12-08
AU7801798A (en) 1998-12-21

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