WO1999010035A3 - Invasive medical device including an opposed solenoid rf coil for mri - Google Patents

Invasive medical device including an opposed solenoid rf coil for mri Download PDF

Info

Publication number
WO1999010035A3
WO1999010035A3 PCT/US1998/017076 US9817076W WO9910035A3 WO 1999010035 A3 WO1999010035 A3 WO 1999010035A3 US 9817076 W US9817076 W US 9817076W WO 9910035 A3 WO9910035 A3 WO 9910035A3
Authority
WO
WIPO (PCT)
Prior art keywords
microcoils
pair
mri
receiver
opposed
Prior art date
Application number
PCT/US1998/017076
Other languages
French (fr)
Other versions
WO1999010035A2 (en
Inventor
Charles L Truwit
Haiying Liu
Original Assignee
Image Guided Neurologics Inc
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 Image Guided Neurologics Inc filed Critical Image Guided Neurologics Inc
Priority to JP2000507422A priority Critical patent/JP4246378B2/en
Priority to EP98943228A priority patent/EP1007132A2/en
Priority to AU91065/98A priority patent/AU9106598A/en
Publication of WO1999010035A2 publication Critical patent/WO1999010035A2/en
Publication of WO1999010035A3 publication Critical patent/WO1999010035A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods
    • A61B5/4839—Diagnosis combined with treatment in closed-loop systems or methods combined with drug delivery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • 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
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers

Abstract

The use of devices in procedures, especially medical procedures where the events take place under view of Magnetic Resonance Imaging (MRI) systems is becoming more important. Although some general and specific structures have been discussed in the literature and commercialized, little has been done effectively to design devices for MRI procedures for specific tasks. The present invention describes a device for use within an organism, said device comprising an element (2) having at least one pair of opposed RF receiver microcoils (10, 16) having a space (19) between each microcoil of said pair of microcoils, the coils of said microcoils may have diameters of less than 2.4 mm. Circuitry may be insulated within the device by providing the wires and circuits within different layers in a coaxial layering of components within the catheter. The device may also comprise an element (2) having at least one pair of opposed RF receiver microcoils (10, 16) having a space (19) between each microcoil of said pair of microcoils, the RF receiver microcoils each comprising at least three individual windings, the at least three individual windings of said microcoils having spacing between adjacent windings (10, 32; 16, 18) so that spacing between at least two pairs of individual windings within the microcoils differ by at least 10 %.
PCT/US1998/017076 1997-08-22 1998-08-18 Invasive medical device including an opposed solenoid rf coil for mri WO1999010035A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000507422A JP4246378B2 (en) 1997-08-22 1998-08-18 Device used in vivo compatible with magnetic resonance imaging procedures
EP98943228A EP1007132A2 (en) 1997-08-22 1998-08-18 Mr-compatible medical devices
AU91065/98A AU9106598A (en) 1997-08-22 1998-08-18 Mr-compatible medical devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/916,596 1997-08-22
US08/916,596 US5964705A (en) 1997-08-22 1997-08-22 MR-compatible medical devices

Publications (2)

Publication Number Publication Date
WO1999010035A2 WO1999010035A2 (en) 1999-03-04
WO1999010035A3 true WO1999010035A3 (en) 1999-06-03

Family

ID=25437532

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/017076 WO1999010035A2 (en) 1997-08-22 1998-08-18 Invasive medical device including an opposed solenoid rf coil for mri

Country Status (5)

Country Link
US (1) US5964705A (en)
EP (1) EP1007132A2 (en)
JP (1) JP4246378B2 (en)
AU (1) AU9106598A (en)
WO (1) WO1999010035A2 (en)

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US5964705A (en) 1999-10-12

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