BladderScan BVI 6100 The BladderScan® BVI 6100 bladder volume instrument, with VMODE® technology, is a portable 3D ultrasound device that quickly, accurately, and noninvasively measures urinary bladder volume. BladderScan BVI 6100 The BladderScan® BVI 6100 bladder volume instrument, with VMODE® technology, is a portable 3D ultrasound device that quickly, accurately, and noninvasively measures urinary bladder volume. BladderScan BVI 61000570-0154 Request a Quote