MEDICAL ELECTRONICS
Bridging the gap
Drawing on a recent project, Pacer International highlights how its team has stepped in to support a long-term customer faced with the obsolescence of critical optoelectronic sensors
it can cause major challenges within the field of medical technology – particularly for highly complex and expensive equipment where the entire system has to be taken into consideration when replacing a part to ensure stringent requirements and regulations continue to be met.
A
Background Immunoassay analysers can be used in hospital and clinical laboratories to detect the presence and concentration of substances within samples. There are many types of tests that they can perform, including testing for cancer markers, diagnosing infectious diseases, cardiac analysis, therapeutic drug monitoring and allergy testing. Given the necessity to carry out fast,
frequent and accurate blood gas screening and monitoring for critical patients on ventilator support, including those that are
26 OCTOBER 2021 | ELECTRONICS TODAY CaliPile Sensor Family
lthough obsolescence has become part of the norm within the consumer market,
experiencing a variety of health complications as a result of COVID-19, blood gas testing machines have become increasingly important. Both of these types of equipment require a plethora of optical sensors to operate effectively. These include:
• Reflective sensors – these non-contact sensors are used to detect the presence or
absence of objects or measure the distance to those objects.
• Slotted optical switches – also called opto switches, these are devices that are often
used as home position sensors, encoders and safety switches such as monitoring if covers/doors are open or closed.
• Fibre optic sensors – use optical fibre either as a sensing element, or as a
means of relaying signals from a remote sensor to the electronics that process the signals.
Excelitas DigiFamily
• LEDs and photodetectors – these discrete devices can be used for everything from
position sensing to actual diagnostics.
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