Invention Grant
- Patent Title: MRI-guided catheters
- Patent Title (中): MRI引导导管
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Application No.: US13749351Application Date: 2013-01-24
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Publication No.: US08825133B2Publication Date: 2014-09-02
- Inventor: Kimble L. Jenkins , Peter Piferi , Kamal Vij , Daniele Ghidoli , Jesse Flores , Parag V. Karmarkar , Rajesh Pandey
- Applicant: MRI Interventions, Inc.
- Applicant Address: US TN Memphis
- Assignee: MRI Interventions, Inc.
- Current Assignee: MRI Interventions, Inc.
- Current Assignee Address: US TN Memphis
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Main IPC: A61B5/05
- IPC: A61B5/05 ; A61B5/00 ; A61B5/06 ; A61B18/18 ; A61B5/053 ; G01R33/28 ; A61M5/00 ; A61B5/042 ; A61B5/055 ; A61B18/02 ; A61M25/06 ; A61B19/00 ; A61M25/00 ; A61M29/00 ; A61M25/01 ; A61M25/09

Abstract:
An MRI-compatible catheter that reduces localized heating due to MR scanner-induced currents includes an elongated flexible shaft having a distal end portion and an opposite proximal end portion. A handle is attached to the proximal end portion and includes an electrical connector interface configured to be in electrical communication with an MRI scanner. One or more RF tracking coils are positioned adjacent the distal end portion of the shaft. Each RF tracking coil includes a conductive lead, such as a coaxial cable, that extends between the RF tracking coil and the electrical connector interface and electrically connects the RF tracking coil to an MRI scanner. In some embodiments of the present invention, the conductive lead has a length sufficient to define an odd harmonic/multiple of a quarter wavelength of the operational frequency of the MRI Scanner, and/or includes a series of pre-formed back and forth segments along its length.
Public/Granted literature
- US20130131496A1 MRI-GUIDED CATHETERS Public/Granted day:2013-05-23
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