Abstract: A therapeutic delivery system includes a cannula configured to deliver a therapeutic into an anatomical region, the cannula having an internal lumen and a pumping system coupled to the cannula. The pumping system is inline of a therapeutic flow pathway between a therapeutic source and the cannula. The pumping system is configured to drive the therapeutic from the therapeutic source and toward the cannula.

Abstract: Methods and systems that provide quantitative assessments of in vivo thermal treatments, such as ablations, during image-guided surgeries using a high-resolution pre-operative MRI image segmented with a shape constrained and deformable mesh representations of brain structures and generating 3-D visualizations of thermally treated volumes during the thermal treatment that can provide near real time visual and quantitative feedback to a clinician.

Abstract: Surgical systems and methods for an MRI suite include a housing residing in an MRI scanner room of the MRI suite. The housing comprises a plurality of motors coupled to at least one motor driver (in the same or a different housing); and a plurality of elongate cables, one coupled to one of the plurality of motors residing in the same housing or a different housing. The elongate cables comprise MRI compatible material and having a length in a range of about 24 inches and 60 inches. One of the cables couples to one of the motors at a first end portion and a corresponding one actuator of the actuators of a trajectory guide at a second end portion.

Abstract: A passive MRI-compatible guidewire includes an elongate, flexible tubular shaft, an elongate core wire of non-ferromagnetic material, and an elongate spring coil of non-ferromagnetic material axially surrounding the elongate core wire to form a distal end portion. The core wire includes opposite first and second end portions separated by an intermediate portion. The intermediate portion has a round cross-section, and the first and second end portions each have a non-round cross-section. The first end portion of the core wire resides within an inner lumen of the tubular shaft and is secured therewithin. The spring coil includes opposite first and second ends, and the spring coil second end is secured to the core wire second end portion via polymeric material that forms a rounded distal tip of the guidewire. The guidewire includes a plurality of spaced-apart, passive MRI-visible markers.

Abstract: A passive MRI-compatible guidewire includes an elongate, flexible tubular shaft, an elongate core wire of non-ferromagnetic material, and an elongate spring coil of non-ferromagnetic material axially surrounding the elongate core wire to form a distal end portion. The core wire includes opposite first and second end portions separated by an intermediate portion. The intermediate portion has a round cross-section, and the first and second end portions each have a non-round cross-section. The first end portion of the core wire resides within an inner lumen of the tubular shaft and is secured therewithin. The spring coil includes opposite first and second ends, and the spring coil second end is secured to the core wire second end portion via polymeric material that forms a rounded distal tip of the guidewire. The guidewire includes a plurality of spaced-apart, passive MRI-visible markers.

Abstract: Fiber optic systems with an MR compatible mouse in an MR scanner room that connects to a fiber optic computer mouse interface that is attached to a fiber optic cable that connects to a USB port of a computer in the MR control room to allow the mouse in the MR scanner room to move a cursor on a monitor in communication with the computer in the control room of an MRI suite during an MRI guided surgical procedure. The fiber optic cable(s) can be routed though a conventional RF wall waveguide and avoids the need for additional holes in the penetration panel for connectors. The fiber optic systems can also include up converters and down converters for providing fiber optic video signals from cameras in the MR scanner room to display video signal on the monitor.

Abstract: MRI guided cardiac interventional systems are configured to generate dynamic (interactive) visualizations of patient anatomy and medical devices during an MRI-guided procedure and may also include at least one user selectable 3-D volumetric (tissue characterization) map of target anatomy, e.g., a defined portion of the heart.

Abstract: Scanner Systems with table stabilizers for stabilizing patient support structures during a surgery include a stabilizer block that can cooperate with the gantry to structurally support a head end portion of the table to prevent undesired movement of the table under an end load.

Abstract: An MRI-compatible intrabody device includes an elongated flexible shaft having a distal end portion, an opposite proximal end portion, an electrical connector interface configured to be in electrical communication with an MRI scanner, and a tracking coil assembly adjacent the shaft distal end portion. The tracking coil assembly includes a first spool having opposing first and second end walls and a second spool having opposing third and fourth end walls. The second spool is in end-to-end relationship with the first spool such that the second and third end walls are in adjacent, spaced-apart relationship. A tracking coil is wound around the first spool, and a coaxial cable is wound around the second spool. An outer conductor of the coaxial cable is connected to one end of the tracking coil and the inner conductor of the coaxial cable is connected to an opposite end of the tracking coil.

Abstract: A surgical, motor-powered hand-held MRI-compatible drill with a remote control unit and user controls for drilling though target bone of a patient and/or attaching a bone screw.

Abstract: Intrabody MRI-compatible medical devices with a rigid stylet body with opposing distal and proximal ends with a wall enclosing at least one cavity extending therebetween. The stylet body has first and second laterally spaced apart and opposing external longitudinally extending recessed surfaces and at least one pair of transversely spaced apart apertures extending through the wall and at least one conductor having a length that extends through the cavity then exits the cavity to define at least one external loop extending between the distal end of the stylet body and the pair of transversely spaced apart apertures. First and second legs of each loop snugly abut a respective first and second recessed surface of the stylet body to thereby cooperate with the stylet body to define a substantially cylindrical shape. The at least one conductor with the at least one loop is configured to act as an MRI antenna.

Abstract: Scanner Systems with table stabilizers for stabilizing patient support structures during a surgery include a stabilizer block that can cooperate with the gantry to structurally support a head end portion of the table to prevent undesired movement of the table under an end load.

Abstract: The disclosure describes cable management systems that provide adjustable lengths of cables that connect to various electronic medical or surgical tools. The systems can reduce the lengths of loose or hanging cables and define routes that preventing cross-over, looping and/or bunching of loose lengths of long cables.

Abstract: An MRI-compatible catheter includes an elongated flexible shaft having opposite distal and proximal end portions. A handle is attached to the proximal end portion and includes an actuator in communication with the shaft distal end portion that is configured to articulate the shaft distal end portion. The distal end portion of the shaft may include an ablation tip and includes at least one RF tracking coil positioned adjacent the ablation tip that is electrically connected to an MRI scanner. The at least one RF tracking coil is electrically connected to a circuit that reduces coupling when the at least one RF tracking coil is exposed to an MRI environment. Each RF tracking coil is a 1-10 turn solenoid coil, and has a length along the longitudinal direction of the catheter of between about 0.25 mm and about 4 mm.

Abstract: An MRI-compatible intrabody device includes an elongated flexible shaft having a distal end portion, an opposite proximal end portion, an electrical connector interface configured to be in electrical communication with an MRI scanner, and a tracking coil assembly adjacent the shaft distal end portion. The tracking coil assembly includes a first spool having opposing first and second end walls and a second spool having opposing third and fourth end walls. The second spool is in end-to-end relationship with the first spool such that the second and third end walls are in adjacent, spaced-apart relationship. A tracking coil is wound around the first spool, and a coaxial cable is wound around the second spool. An outer conductor of the coaxial cable is connected to one end of the tracking coil and the inner conductor of the coaxial cable is connected to an opposite end of the tracking coil.

Abstract: Intrabody MRI-compatible medical devices with a rigid stylet body with opposing distal and proximal ends with a wall enclosing at least one cavity extending therebetween. The stylet body has first and second laterally spaced apart and opposing external longitudinally extending recessed surfaces and at least one pair of transversely spaced apart apertures extending through the wall and at least one conductor having a length that extends through the cavity then exits the cavity to define at least one external loop extending between the distal end of the stylet body and the pair of transversely spaced apart apertures. First and second legs of each loop snugly abut a respective first and second recessed surface of the stylet body to thereby cooperate with the stylet body to define a substantially cylindrical shape. The at least one conductor with the at least one loop is configured to act as an MRI antenna.

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.

Abstract: An MRI-guided medical device includes an elongated sheath, an elongated dilator, and an elongated needle. The sheath has a distal end, an opposite proximal end, and a central lumen extending between the proximal and distal ends. The sheath comprises MRI-compatible material and includes a tracking member located adjacent to the sheath distal end that is visible in an MRI image. The dilator comprises MRI-compatible material and is movably disposed within the sheath lumen. A distal end of the dilator is configured to extend outwardly from the sheath distal end and dilator includes at least one tracking member that is visible in an MRI image. The needle is movably disposed within the dilator lumen and is movable between stored and operative positions relative to the dilator. An RF shield may be coaxially disposed within the elongated sheath so as to surround a portion of the sheath central lumen.

Abstract: Fiber optic systems with an MR compatible mouse in an MR scanner room that connects to a fiber optic computer mouse interface that is attached to a fiber optic cable that connects to a USB port of a computer in the MR control room to allow the mouse in the MR scanner room to move a cursor on a monitor in communication with the computer in the control room of an MRI suite during an MRI guided surgical procedure. The fiber optic cable(s) can be routed though a conventional RF wall waveguide and avoids the need for additional holes in the penetration panel for connectors. The fiber optic systems can also include up converters and down converters for providing fiber optic video signals from cameras in the MR scanner room to display video signal on the monitor.

Abstract: An RF shield for medical interventional devices includes elongated inner and outer conductive tubes, and an elongated dielectric layer of MRI compatible material sandwiched between the inner and outer conductive tubes and surrounding the inner conductor. The inner and outer conductive tubes are electrically connected to each other at only one of the adjacent end portions thereof. The opposite respective end portions are electrically isolated from each other.