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motor that would allow their hand piece to be
sterilized and reused. A B0512 brushless slotted
DC autoclavable motor was proposed.
“This motor combination was chosen
because system inertia and acceleration rate
are critical to ensure a short retraction time”
says Louis Mongin, Portescap Medical Project
Manager. Portescap was able to ship prototypes within 48 hours and assist with guidance
for additional electronics, including gearheads.
“We fully expect that miniature motors
and controls will serve an increasingly critical
function in this market” says Loic Lachenal,
Portescap Medical Market Director.
“All in all, Portescap was very responsive
in helping us find the perfect solution for
our needs. They worked extensively with us
through multiple design iterations to deter-
mine the optimal motor that worked in our
NavioPFS system. No other motors we looked
at were able to address all of our requirements”
adds Adam Hahn, Blue Belt Technologies
“Portescap is continually striving to serve
the future needs of the surgical hand tool
market by designing new motors that deliver
utmost quality and performances, and we will
be introducing additional innovative motor
solutions to this market during the coming
new year,” says Lachenal.
Motor Technologies and Characteristics
With so many different requirements when
looking for miniature motion solutions for
medical equipment, designers face a signifi-
cant challenge. Many times, a tradeoff must
be made between parameters in order to
satisfy the end customer requirements. Engi-
neers can benefit from the education of the
features and benefits by technology, which
can help making a motion solution selection
more efficient. MDT
Brushless Slotted Motor
Brushless Slotted Motors use a stator
that consists of stacked steel lamination with winding placed in the slots
that are axially cut along the inner
periphery. They provide improved
heat dissipation and high torque density, along with high acceleration.
• High efficiency and power density
The Navio handpiece allows the surgeon to precisely
• Ability to withstand harsh environ-
• Increased motor lifetime due to no
• Sterilization options