November / December
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BREAKTHROUGH IN CATHETER NAVIGATION
AscensionTechnology’snew3DGuidanceMedSAFEtrackersup-ports real-time tracking of sensors 0.27 to 0.3 mm in diameter to accommodate localization of small needles, catheters and guidewires. Tiny sensor coils broaden the range of medical instruments that can benefit from image guidance. Key advantages include: inconspicuous guidance of surgical navigation instruments, environmental immunity and fast, simultaneous tracking of multiple sensors to overcome temporal misalignment of tracking and imaging datasets.
3D Guidance MedSAFE fully meets electrical safety regulation and is classified as a Class 1, Type CF, Defib Proof device for use within the human body. Measurements are unaff ected when tracking in close proximity to intravascular ultrasound arrays, composite beds, low frequency noise sources,and common hospital metals, such as 300-series stainless steels, titanium and aluminum.
When used with its flat magnetic field generator, 3D Guidance MedSAFE measurements are also immune from ferromagnetic metals beneath its planar surface, such as structural members in OR and procedural tables. Ascension’s current “radiopaque”f lat transmitteris designed for procedures not requiring fluoroscopy. Under development is a “radiolucent” flat transmitter, containing an open centre, for compatibility with X-ray fluoroscopy. It enables accurate 3D tracking, near a C-Arm fluoroscope, without degradation or signal loss. is sensor can be integrated into catheters and0.3mmneedles as small as 3 French/20 gauge. Microminiatur- 5DOF ized sensors accurately measure the X, Y, Z position and yaw, pitch orientation (five degrees of freedom) of embedded coils, up to 375 times a second at accuracies in the millimeter range. Its assembly addresses the clinical 7mm requirement for unobtrusive integration of sensors into a wide range of tools for in vivo visualization and navigation. Sensors ranging in size from 1.3 to 1.8 mm wide are available for six degrees of freedom tracking of instruments.
Ascension Technology Corp.
RRC #6082
RRC #6082
