Detection of balancing microscopes in micron accuracy
Medical care industry
A optical device manufacturer with a large share of OEM products of well-known overseas optical manufacturers.
A designer of the medical device department inquired us about "balancing" of microscopes for neurosurgery.
Table of Contents
Client’s Issues
The neurosurgery to inosculate 0.05 mm vessels has needed sensors to always balance microscopes serving as eyes for physicians.
Use of "photo sensor" or "angle sensor" was also considered, however, its accuracy was not stable enough to balance microscopes constantly.
Also, the sensors are so large that it is difficult to incorporate them into a device.
The client inquired us about more stable operations for vessel inosculation surgeries that never fails.
The main focus of the issues
Unstable accuracy of the photo sensor.
The size of the photo sensor is too big to be set in equipment.
Metrol’s suggestions
"Photo sensor" or "angle sensor" incorporates an amp and is subject to temperature drift caused by changes in external conditions, which prevents a detection of balance of machines in micron level.
Metrol's "Positioning switch" is a precision-machine-type without an amp and not subject to changes in external conditions, having the stable 1μm repeatability.
The M5 x 17 mm micro size can have the switch built in the microscope body.
Always balancing a microscope can help difficult surgeries.
Improvements
High-accuracy balancing has been realized without an amp.
Its micro size realizes an incorporation into a device.
Comment from Metrol representative
As stated already, in many cases, the switch has been widely adopted in life-critical medical device industry in applications such as "radiation slit positioning" of radiation therapy devices and "precision hole processing" of injection needles.
The smallest size in the world drew attentions and the switch has been introduced in various media such as "THE World's No.1 Expo" sponsored by Japanese Government.
We provide the rental service of samplings for the evaluation.
If you are in trouble with the improvement of precision or space saving of sensors, please feel free to contact us.
For further information about the products used in this application
Ultra Small Size Positioning Switches [PT]
The world's smallest M5×17mm size!
Realization of downsizing the machines and the improvement of accuracy.
