Instructions For Use – neXus Ultrasonic Surgical Aspirator
Doc #: 100-10-1000 rev A
p 14
Use of a separate monopolar instrument at electrosurgery settings greater than 70W while simultaneously
touching the handpiece probe to tissue can induce faults and possible system damage.
Only external surfaces of the console should be cleaned. Do not attempt to remove any panels in order to
clean or disinfect internal surfaces.
Do not immerse ultrasonic console, handpiece, irrigation pump or electric cables. These items are not sealed
against liquids and damage to equipment will result.
Improper use or adjustment of this device may invalidate the Misonix, Inc. Warranty agreement. Contact
your authorized Misonix, Inc. representative before attempting to troubleshoot this device in any manner
other than those specified in this manual. There are no user serviceable parts.
The only user replaceable fuses are the two fuses located on the bottom rear of the unit. Replacement fuses
must be identical in type, voltage rating and current rating to the original fuse.
Use only genuine replacement parts from Misonix. Use of parts furnished by other sources may result in
patient or operator injury or system malfunction and will void any applicable warranty.
Before using loose packing materials, such as foam pellets, shredded paper or similar, be sure to wrap the
component(s) separately in plastic bags, film or other protective wrapping.
When using optional cart accessory, be sure to align the rubber feet on the bottom of the console with the
indents in the cart base
After extended periods of operation, the bottom of the console housing may become warm to the touch.
This is normal. Do not touch the bottom of the console housing while in operation or shortly after operation.
Loose tip/tissue contact upon an initial bone incision can cause a thin tip to resonate not only longitudinally
but also transversely. This can cause a thin tip to break. It is necessary to engage bone actively and with a
minimal tip pressure greater than zero in order to prevent the shattering.
Contact of the ultrasonic tip or the exposed extension with metal, surgical instruments or other objects
during ultrasound use must be avoided. Such contact can damage the ultrasonic components very easily and
may result in compromised performance, including failure. Discard any extensions or tips that show signs of
damages like gouges, nicks or fractures. External aspiration may be used but it is recommended that a
plastic suction tip should be used when in proximity with the probe tip.
Adequate air circulation is needed to cool electronic components inside of the unit. Do not block the cooling
fan at the console rear or the air vents on the console bottom. Do not place the unit on a towel, foam or
other soft surface since the material may block the air vents. Blocking these vents may cause unit to
overheat and malfunction or create a shock hazard. A clear drape can be used to protect the console front
panel but do not cover the pump housing or other console portions.
The neXus system should be fully tested and inspected prior to each procedure. The console, footswitch,
handpieces, all cables and accessories should be examined for proper appearance and condition.
The neXus device will alert the user if the batteries in the footswitch are low. Replace batteries immediately
following the procedure.
All periodic maintenance is to be performed by the hospital’s technical staff, trained OR staff member or by
a Misonix Inc authorized technical personnel. Under normal conditions, the filter should be changed at 6-
month intervals.
