The da Vinci Robot* gives the surgeon
new tools for minimally invasive (laparoscopic) surgery. The robotic
system was originally developed by the Department of Defense for use
as a robotic surgeon for the battlefield and is approved by the FDA.
The system replicates the surgeon's hand movements realtime in laparoscopic
instruments. It cannot be programmed, nor does it make any independent
decisions, but rather it does only what the surgeon inputs in realtime.
Standard laparascopic viewing utilizes
one single camera and limits surgeon's vision to a 2-D view similar
to watching your television.The
da Vinci robotic camera consists of TWO high resolution fiber optic
cameras. Like your eyes they
produce a true 3 dimensional color picture available to the surgeon
seated at the da Vinci console by viewing the twin high resolution,
high frame-rate eyepieces.
Magnification of up to 10-12x can be achieved with these cameras.
These components constitute the Insite Vision System, by Intuitive
Surgical, one of the most advanced vision systems available.
A central robotic arm positions the camera and lighting exactlly where
the surgeon wishes it, because it is operated by the surgeon by foot
pedals as he/she is comfortably seated at the console. Also note the
camera can be placed within 2 inches of the prostate during surgery.
Two different cameras are also available: straight, and 30 degree
oblique. The oblique camera can allow the surgeon to peek around the
corners and to partially see underneath the prostate.
| The da Vinci Surgical Instruments |
Although visually similar to standard
laparascopic
instruments, the robotic instruments have the additional advantage
of being articulated. The allows
the instruments not only
to open and close but to fully turn and twist, allowing more natural
mimicry of the human hand and wrist. Unlike your hand these intruments
are much smaller. Many of the jaws of the tools are similar or shorter
in length than your fingernail. This allows very small and precise
incisions to carefully dissect out the prostate.
| Manipulations of da Vinci Surgical
Instruments |
Standard laparascopic instruments are
manipulated counter-intuitively or 'backwards'. The surgeon operates
one end of the instrument which acts like a lever-push one end down
and the other end goes up. Push right to make the instrument go left.
This is similar to a teeter-totter, where the center is the port or
entrance to the body cavity. Thus for standard laparoscopic procedure,
the surgeon has learned to operate essentially backwards. Although
difficult, a highly qualified surgeon can master
this process. The Da Vinci robot does NOT have
these limitiations. The robot-slave technology translates a
surgeons hand movements exactly as he/she does them. Turn your wrist
right and the articulated robotic wrist turns right; go up, the robot
wrist move up, etc. in three dimensions. The robot also allows the
surgeon to 'scale' their hand movements. A large hand movemement at
the console can be translated into a micro precise dissection or exposure.
The robot can also filter out hand tremors, enhancing precision.
Another of the many benefits of this system is that it significantly
reduces surgeon fatigue associated with traditional laparoscopic prostatectomy
by allowing the surgeon to remain in a natural, comfortable position
while operating.
| Minimizing Blood Loss With The da
Vinci System |
Similar to standard laparascopic procedures,
patients are insufflated in the lower abdomen. This gas pressure acts
like an invisible hand to suppress blood loss and it also gently sweeps
bowel away from the surgical target site. The gas is exhaled away
after surgery. The enhanced visibility and magnification of the robotic
cameras aid the surgeons in finding small 'bleeders', which translates
into lower blood loss. Now surgeons can keep blood loss to a minimum,
which means an increased clarity of vision to more carefully identify
essential anatomy of the prostate: the edges of prostate (margins),
the urethra (continence), and nerves and blood vessels which may aid
potency.
How safe is the da Vinci
Surgical System for radical prostatectomy?
The system is FDA approved for radical prostatectomies and is being
used routinely in a great number of hospitals across the country.
(see intuitivesurgical.com
for a current listing.) Each da Vinci system is rigorously maintained,
tested, and upgraded as necessary by Intuitive Surgical. In
our experience at UCI with both of our two da Vinci Systems, we have
not seen nor heard anything that would give us cause for concern.
What happens if there is a malfunction
in the da Vinci System?
In the unlikely event of malfunction, or if the surgeon feels that
it is not safe to continue with the robot, the da vinci system will
be withdrawn and the surgery can proceed either via traditional laparoscopic
means or via traditional open radical prostatectomy. The instruments
and supplies necessary are kept on hand such that conversion, if necessary,
can occur seamlessly. Dr. Ahlering was previously an expert
in open radical prostatectomy such that good surgical results can
still be obtained in this unlikely event.
| Visit Intuitive Surgical Online
to Learn More about the Robot |

The da Vinci Surgical
System is a product of Intuitive Surgical, click here to visit their
site.
©2004 UCI Department
of Urology
*the da Vinci
Surgical System and related technologies (endowrist, insite vision)
and associated trademarks are property of
Intuitive Surgical., Inc. All rights reserved.
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