Character recognition on pacemakers and defibrillators for increased reliability and quality standards

Remit: Decisive progress could be made in the quality assurance of pacemakers and defibrillators with the help of perfectly tuned image processing components. Precise specifications and measurement values can be assigned to every pacemaker using components in the production clean room.

Defibrillators and pacemakers are provided with serial numbers after the electronics are placed in stainless-steel housing. During final inspection of electrical and software parameters, the serial number is the only indicator for the integrated, customised electronics (the program code is in the serial number).

The test objects are fed-in manually.

100% testing using a suitable image processing system is intended to differentiate between 40 character sets. The characters (serial numbers) are applied to stainless steel by laser.

Permissible character deviation: +/- 2 degrees


Sector: Medical technology

Components used:
pictor® intelligent camera
vcwin® software "OCR recognition" command
vicolux® radial dark field ring lighting
Entocentric inspection lens