WO1998055016A1 - Glass core guidewire compatible with magnetic resonance having reinforcing fibers - Google Patents
Glass core guidewire compatible with magnetic resonance having reinforcing fibers Download PDFInfo
- Publication number
- WO1998055016A1 WO1998055016A1 PCT/US1998/010864 US9810864W WO9855016A1 WO 1998055016 A1 WO1998055016 A1 WO 1998055016A1 US 9810864 W US9810864 W US 9810864W WO 9855016 A1 WO9855016 A1 WO 9855016A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- guidewire
- magnetic
- core
- distal tip
- reinforcing fibers
- Prior art date
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.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98926103A EP0989820A4 (en) | 1997-06-06 | 1998-05-28 | Glass core guidewire compatible with magnetic resonance having reinforcing fibers |
AU78017/98A AU7801798A (en) | 1997-06-06 | 1998-05-28 | Glass core guidewire compatible with magnetic resonance having reinforcing fibers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1006254A NL1006254C2 (en) | 1997-06-06 | 1997-06-06 | MRI-compatible guidewire. |
NL1006254 | 1997-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998055016A1 true WO1998055016A1 (en) | 1998-12-10 |
Family
ID=19765120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/010864 WO1998055016A1 (en) | 1997-06-06 | 1998-05-28 | Glass core guidewire compatible with magnetic resonance having reinforcing fibers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0989820A4 (en) |
AU (1) | AU7801798A (en) |
NL (1) | NL1006254C2 (en) |
WO (1) | WO1998055016A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1115004A2 (en) * | 1999-12-02 | 2001-07-11 | Philips Corporate Intellectual Property GmbH | MR-device and MR-method for localising and/or visualising a medical instrument provided with a passive magnet arrangement |
US7347829B2 (en) * | 2002-10-07 | 2008-03-25 | Suros Surgical Systems, Inc. | Introduction system for minimally invasive surgical instruments |
US7758520B2 (en) | 2003-05-27 | 2010-07-20 | Boston Scientific Scimed, Inc. | Medical device having segmented construction |
US7998088B2 (en) | 2002-12-23 | 2011-08-16 | Boston Scientifc Scimed, Inc. | Guidewire tip construction |
US8043316B2 (en) | 2008-05-02 | 2011-10-25 | Suros Surgical Systems, Inc. | Adjustable spacer |
EP2548604A1 (en) * | 2001-01-26 | 2013-01-23 | Lake Region Manufacturing, Inc. | Non-metallic guide wire |
WO2014029508A1 (en) * | 2012-08-20 | 2014-02-27 | Epflex Feinwerktechnik Gmbh | Mr-capable or hf-capable medical guide wire |
WO2014086917A1 (en) * | 2012-12-05 | 2014-06-12 | Epflex Feinwerktechnik Gmbh | Medical catching-wire instrument |
US8886288B2 (en) | 2009-06-16 | 2014-11-11 | MRI Interventions, Inc. | MRI-guided devices and MRI-guided interventional systems that can track and generate dynamic visualizations of the devices in near real time |
US8932233B2 (en) | 2004-05-21 | 2015-01-13 | Devicor Medical Products, Inc. | MRI biopsy device |
US9259290B2 (en) | 2009-06-08 | 2016-02-16 | MRI Interventions, Inc. | MRI-guided surgical systems with proximity alerts |
US9638770B2 (en) | 2004-05-21 | 2017-05-02 | Devicor Medical Products, Inc. | MRI biopsy apparatus incorporating an imageable penetrating portion |
US9795365B2 (en) | 2004-05-21 | 2017-10-24 | Devicor Medical Products, Inc. | MRI biopsy apparatus incorporating a sleeve and multi-function obturator |
US11202888B2 (en) | 2017-12-03 | 2021-12-21 | Cook Medical Technologies Llc | MRI compatible interventional wireguide |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5078700A (en) * | 1990-03-19 | 1992-01-07 | Becton, Dickinson And Company | Liquid crystalline catheter |
US5353808A (en) * | 1992-03-04 | 1994-10-11 | Cordis Corporation | Guidewire having distally located marker segment |
US5706827A (en) * | 1994-09-21 | 1998-01-13 | Scimed Life Systems, Inc. | Magnetic lumen catheter |
US5769796A (en) * | 1993-05-11 | 1998-06-23 | Target Therapeutics, Inc. | Super-elastic composite guidewire |
Family Cites Families (11)
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US4739768B2 (en) * | 1986-06-02 | 1995-10-24 | Target Therapeutics Inc | Catheter for guide-wire tracking |
US4832023A (en) * | 1987-06-03 | 1989-05-23 | Mcm Laboratories, Inc. | Method and apparatus for reducing blockage in body channels |
US4867174A (en) * | 1987-11-18 | 1989-09-19 | Baxter Travenol Laboratories, Inc. | Guidewire for medical use |
CA2068584C (en) * | 1991-06-18 | 1997-04-22 | Paul H. Burmeister | Intravascular guide wire and method for manufacture thereof |
JPH0523399A (en) * | 1991-07-22 | 1993-02-02 | Nippon Zeon Co Ltd | Medical appliance fitted with electrode |
FR2685989A1 (en) * | 1992-01-08 | 1993-07-09 | Distr App Medicaux Off | Device for filtering stray radio frequency emissions, especially in medical imaging by magnetic resonance |
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 |
FR2704131B1 (en) * | 1993-04-22 | 1995-06-30 | Odam | Sensor device for electrocardiogram. |
EP0827383B1 (en) * | 1995-02-28 | 2007-05-30 | Boston Scientific Corporation | Polymer implements for torque transmission |
US5690120A (en) * | 1996-05-24 | 1997-11-25 | Sarcos, Inc. | Hybrid catheter guide wire apparatus |
-
1997
- 1997-06-06 NL NL1006254A patent/NL1006254C2/en not_active IP Right Cessation
-
1998
- 1998-05-28 AU AU78017/98A patent/AU7801798A/en not_active Abandoned
- 1998-05-28 EP EP98926103A patent/EP0989820A4/en not_active Withdrawn
- 1998-05-28 WO PCT/US1998/010864 patent/WO1998055016A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5078700A (en) * | 1990-03-19 | 1992-01-07 | Becton, Dickinson And Company | Liquid crystalline catheter |
US5353808A (en) * | 1992-03-04 | 1994-10-11 | Cordis Corporation | Guidewire having distally located marker segment |
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 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0989820A4 * |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1115004A3 (en) * | 1999-12-02 | 2003-07-09 | Philips Intellectual Property & Standards GmbH | MR-device and MR-method for localising and/or visualising a medical instrument provided with a passive magnet arrangement |
EP1115004A2 (en) * | 1999-12-02 | 2001-07-11 | Philips Corporate Intellectual Property GmbH | MR-device and MR-method for localising and/or visualising a medical instrument provided with a passive magnet arrangement |
EP2548604A1 (en) * | 2001-01-26 | 2013-01-23 | Lake Region Manufacturing, Inc. | Non-metallic guide wire |
US7347829B2 (en) * | 2002-10-07 | 2008-03-25 | Suros Surgical Systems, Inc. | Introduction system for minimally invasive surgical instruments |
US7998088B2 (en) | 2002-12-23 | 2011-08-16 | Boston Scientifc Scimed, Inc. | Guidewire tip construction |
US7758520B2 (en) | 2003-05-27 | 2010-07-20 | Boston Scientific Scimed, Inc. | Medical device having segmented construction |
US8485992B2 (en) | 2003-05-27 | 2013-07-16 | Boston Scientific Scimed, Inc. | Medical device having segmented construction |
US9795365B2 (en) | 2004-05-21 | 2017-10-24 | Devicor Medical Products, Inc. | MRI biopsy apparatus incorporating a sleeve and multi-function obturator |
US9638770B2 (en) | 2004-05-21 | 2017-05-02 | Devicor Medical Products, Inc. | MRI biopsy apparatus incorporating an imageable penetrating portion |
US9504453B2 (en) | 2004-05-21 | 2016-11-29 | Devicor Medical Products, Inc. | MRI biopsy device |
US8932233B2 (en) | 2004-05-21 | 2015-01-13 | Devicor Medical Products, Inc. | MRI biopsy device |
US9392999B2 (en) | 2004-05-21 | 2016-07-19 | Devicor Medical Products, Inc. | MRI biopsy device |
US8043316B2 (en) | 2008-05-02 | 2011-10-25 | Suros Surgical Systems, Inc. | Adjustable spacer |
US9439735B2 (en) | 2009-06-08 | 2016-09-13 | MRI Interventions, Inc. | MRI-guided interventional systems that can track and generate dynamic visualizations of flexible intrabody devices in near real time |
US9259290B2 (en) | 2009-06-08 | 2016-02-16 | MRI Interventions, Inc. | MRI-guided surgical systems with proximity alerts |
US8886288B2 (en) | 2009-06-16 | 2014-11-11 | MRI Interventions, Inc. | MRI-guided devices and MRI-guided interventional systems that can track and generate dynamic visualizations of the devices in near real time |
CN104884100A (en) * | 2012-08-20 | 2015-09-02 | 艾普福莱克斯高精技术工厂有限责任公司 | Mr-capable or hf-capable medical guide wire |
WO2014029508A1 (en) * | 2012-08-20 | 2014-02-27 | Epflex Feinwerktechnik Gmbh | Mr-capable or hf-capable medical guide wire |
WO2014086917A1 (en) * | 2012-12-05 | 2014-06-12 | Epflex Feinwerktechnik Gmbh | Medical catching-wire instrument |
US11202888B2 (en) | 2017-12-03 | 2021-12-21 | Cook Medical Technologies Llc | MRI compatible interventional wireguide |
US11724073B2 (en) | 2017-12-03 | 2023-08-15 | Cook Medical Technologies Llc | MRI compatible interventional wireguide |
Also Published As
Publication number | Publication date |
---|---|
AU7801798A (en) | 1998-12-21 |
EP0989820A4 (en) | 2001-01-24 |
NL1006254C2 (en) | 1998-12-08 |
EP0989820A1 (en) | 2000-04-05 |
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