Customer objective: to give a characterizing “dress” to the new Syr-tech project to combine ease of use, technology and safety for the use of a syringe pump for slow infusions.

Coesum solution: Our designer has developed a product characterized by a strong frontal sign that also defines all the other elements around and that highlights the man-device interface.

Result: In a short time we defined the design and realized the prototype with Additive Manufacturing technologies, which confirmed the manageability and ease of use already studied by our designer.


Portfolio Description

Sinartis srl ( is an Italian company founded by engineers with different experience in the field of electronics and computer science who have found a common front in responding to the application needs of customers operating in different industrial sectors.
The Syr-tech project has its roots in the medical sector, in fact it concerns a rechargeable Li-ion syringe pump that can use normal disposable syringes up to 20 cc for slow infusions in the application of pain therapy. The device injects micro-doses of drug in a time up to 48 hours with high precision and reliability. The need of Sinartis was to cover the electronic and mechanical heart of the syringe and asked us at Coesum to study a solution for the project after having produced a first prototype of milled aluminum dimensions. Our designer has imagined a product characterized by a strong distinctive sign on the front that inevitably has all the others and houses the membrane keyboard that is the interface between device and user.

The syringe pump is equipped with a motor that makes the syringe piston slide along a screw to start the drug infusion process contained therein. This process is controlled by very compact electronics board, whose dimensions have been defined with Coesum in view of the realization of the casing. It is based on a microprocessor, which manages the infusion time progression, it also checks the battery status and sends the information and alarms needed by the user to a display. The transparent shells allow to well see the inside and therefore we can already distinguish from the render the stop for the positioning of the piston and the hook that holds the front part. The first version of the retainer consisted of a silicone rubber spring, but it tended to stretch longer than necessary in the sealing area and was therefore replaced by two rigid plastic fasteners around which user fits a metal spring. To reinforce this stop function there is the “pocket” that is created in the upper front body.

The aesthetic solution chosen was then validated at a functional level with the realization of a stereolithography prototype in both transparent and painted material in which we mounted the electronic components for assembly tests and mechanical tests.
Thanks to the high level of detail of the stereolithography it was possible to realize the graduated scale on the front body and the electronic housing inside faithfully to the original project, simulating the final product to all effects.
Thanks to Sinartis for involving us in this project!


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