Brief

Zilico Ltd approached Triteq with a partially developed prototype for a device to assess cervical tissue, aiding the cancer screening process. The expertise of all three design teams at Triteq was required, with the majority of challenges facing the hardware and software teams to create a product to meet medical standards. (Image shows initial work provided by Zilico).

Handset Design

The handset can be thought of as two major components; the hardware components and the mechanical housing with a disposable sheath. The electronic design for the handset was extremely complex because of the uniquely shaped PCB and the inclusion of some delicate and sensitive components, resulting in many iterations to find a suitable solution. The mechanical housing was developed based on the existing Zilico prototype.

Docking Station Design

Due to the shape of the handset, a base was required to hold it proud of any potentially unclean surfaces. After some design iteration, the chosen design holds the device at a convenient angle, protects the tip of the snout from damage and is a charging station, containing some simple electronics.

Software Design

This project contains two pieces of software; embedded in the handset and a Windows PC application, which both support multiple languages. The small Graphical User Interface (GUI), which is controlled via a keypad, measures circuitry to record the scan data.

The software implements an algorithm on-board the handset to provide instant results to the user and an RFID reader ensures single use of the disposable sheath. The PC application communicates with the docked handset over a USB connection. It sends configuration data to the handset at the beginning of each session, then reads the scan data and measurement results from the handset at the end and presents this to the practitioner.

Packaging

After passing through medical safety testing and being approved for sale; Triteq created packaging for ZedScan. Branded packaging shows off the product as well as serving the important function of protecting the product from damage during transportation.

Testing and Evolving

At every stage of the project, prototypes were made and tested. They helped to pick up and correct issues before the design was finalised. Zilico have since returned to Triteq to develop and improve ZedScan further. Iterations in software design are still being worked on all the time.

For more information, visit the Zilico website.

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