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Insulin Pen Client NOVO Nordisk A/S Development tasks Development of a disposable insulin pen, known as "Novolet®", with focus on simple mechanical parts, plastic components, low cost price and suitability for fully automated assembly. Participation in design of plastic forms for testing purposes and subsequently optimising of parts. Preparation of complete documentation and specifications as well as participation in the quality assurance procedure. The development took place in close co-operation with the customer and Steve McGugan, Industrial Designer. Description The pen is based on a simple idea. One product - a combination of syringe and vial - includes everything needed for treatment in a single ready-to-use device. The challenge was to manufacture a disposable pen at a cost price of less than 1/10 of pen systems already known (for multiple use) but with the same high standard when it comes to comfort and reliability. The operation is easy. A transparent barrel allows patient to see what they're injecting. The functions can be seen, heard and felt. Each injection is accompanied by clicks to assist diabetics with poor eyesight to administer a correct dose. The pen is a self-contained disposable unit. No reuse or refilling. The price of the pen is low, and the pen is only slightly more expensive than the normal packages. The disposable pen with extreme requirements for the function of the plastic parts and precision is an innovation and the first of its kind. The internal sophisticated mechanical parts are well matched with the external design and the finish, which is far beyond normal standard when it comes to mass-produced products with limited life.

Technique The many functions of the pen have been established using only seven plastic components. The mechanical properties of the plastic parts have been fully exploited to give each component as many functions as possible and to reduce the number of components. When setting the actual dose the two outer parts are turned in proportion to each other. The needle is exposed, the button on top is pressed, and the dose set is injected. The cap is put on and the pen is ready for the next setting/dosing. All parts have been designed for fully automated supply, assembly and quality control. All parts are clicked together, one at a time, in a simple and controlled way making it possible to obtain the low cost price. Simultaneously, automatic assembly equipment has been developed and six turnkey systems have been delivered. Click here for more info on the Assembly system.

The product was awarded "World's best plastic product 1993"

Back to cases    Link to client: Novo Nordisk

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