Vision Engineering's Lynx eyepieceless stereo microscope is aiding a number of global stent manufacturers to provide highly sophisticated products to make angioplasty heart surgery safer.
Vision Engineering's Lynx eyepieceless stereo microscope is
aiding a number of global stent manufacturers to provide highly
sophisticated products to make angioplasty heart surgery a safer
and less complicated procedure.
The innovative and ergonomic
inspection system is used to ensure that the exacting precision
requirements for these devices are met, limiting the serious
medical consequences and liability issues that arise from heart
Angioplasty heart surgery involves using an inflated
balloon to dilate and unblock an artery from the inside - a
procedure that first took place in 1977 in San Francisco.
then, the technique has evolved dramatically, and stents are
sometimes now used to provide a 'mechanical
scaffolding' inside the artery to prevent its collapse.
Stents are tubular alloy reinforcements that are cemented to the
ballon and connected to a wire for control and positioning.
are used to maintain the patency of coronary vessels following
angioplasty surgery, and greatly improve the chances of success
both immediately and on a long-term basis.
this surgery patients are normally discharged the next day and
can resume routine activities a few days later.
has seen a large number of innovations from a wide range of
different international suppliers.
However, when dealing with a
device with a typical diameter of just 2mm and a length of just
15mm, precision and quality are the common and all-important
factors - especially given the medical nature of their use.
because of these factors that manual inspection of every single
manufactured device is essential.
The barrel of the stent must be
inspected for surface inclusions and the edges inspected for
burrs and smoothness while, on assembly, the cement from the
balloon must not wick onto the barrel.
methods have utilised a microscope with ring illumination.
However, the surface glare produced by this method has led to a
consequent inability to detect manufacturing faults and reduced
throughput due to the ergonomic constraints of sustained eyepiece
Vision Engineering has been able to supply the
perfect solution to these problems with its Lynx eyepieceless
The Lynx's patented, user-friendly viewer
assembly permits a much greater degree of body position freedom
for the operator and delivers a pin sharp stereo image.
operator benefiting from the resultant eye relief and the optimal
positioning of user controls for ease-of-use and long-term
comfort, accuracy and productivity are both greatly enhanced.
operator is able to efficiently inspect the surface of stents in
the great detail required for this application, clearly detecting
faults such as wicking.
As a result of these unique benefits, the
Lynx inspection system has been adopted by some of the most
innovative stent manufacturers in the world.
Inflow (Germany); Cordis (USA); Boston Scientific (USA); CR Bard
(USA); Guidant Technology (Ireland); Nemed Tippi (Turkey); and
AVE Metronics (Ireland).
In turn, with these manufacturers'
devices becoming evermore precise, patients needing heart surgery
are far more likely to make a complete and fast recovery.