Shares of Intuitive Surgical fell
11 per cent on Thursday after reports that the US Food and Drug Administration
is investigating the safety of its robotic surgical devices.
The
FDA said it is surveying a small sample of surgeons who use Intuitive’s da
Vinci surgical system. The devices are used in more than 2,000 hospitals around
the world and allow surgeons to conduct operations with remote controls and
cameras.
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The FDA has received an
increase in reports of problems associated with the robotic devices and said it
is trying to weigh the risks and benefits of using robotic surgery rather than
conventional surgery.
“Since
it is difficult to know why the reports have increased, FDA has elected to talk
with some surgeons to help in determining if the rise in reports may be a true
reflection of problems, or may simply be an increase in reports because of
other contributing factors,” Synim Rivers, an FDA spokeswoman, said.
The
FDA would not share details of the reports. It said the survey would give a
“qualitative” picture of safety of the devices.
The da Vinci system has been used in heart surgeries as
well as urological and gynaecological procedures. The device gives doctors a
sense of touch and three-dimensional vision during an operation but cannot be
programmed to perform surgeries on its own.
Critics
of robotic surgery warn that it is risky because doctors are not in direct
contact with their patients. However, a study in the
Archives of Surgery last year found
that individual patient risk factors were more to blame with surgical problems
than the robotic technology.
Robotics
is a growing area in medicine and Intuitive, which introduced the da Vinci
device in 1999, made $2.2bn in revenues last year and $656.6m in net income.
The company’s shares fell 11 per cent to $509.89 after Bloomberg News first
reported the investigation but rose 3.2 per cent in after-hours trading.
Angela
Wonson, an Intuitive spokeswoman, called the inquiry “routine” and said there
has not been an increase in deaths or problems related to its devices.
“The
clinical evidence shows that da Vinci is safer than open surgical alternatives
in many of the common procedures in which it is used,” Ms Wonson said. “We are
committed to continuous improvement and, independent of this survey, we are
always working to improve both our products and processes.”
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