Dual Cartridge Autoinjector

With significant growth in applications for self-injectable medicines, scenarios have arisen where two or more drugs need to be injected concurrently. Whilst for oral medicines taking multiple pills is normal, for injectable products the idea of taking multiple injections, one after another, is extremely undesirable for many patients.

To address this challenge, the development of this dual-cartridge autoinjector targets the delivery of two separate drug products within a single injection. The design provides a straightforward and easy to operate interface, allowing for either user adjustable or fixed doses of two separate drug products to be administered through a common needle hub. The doses are delivered with a sophisticated electronically controlled drive system, making the process of delivering the injection simple and effortless. Dose delivery history is automatically logged, helping to ensure that users do not inadvertently inject the wrong quantity of either drug.

The replaceable needle hub provides a safe and sterile connection for the two medication cartridges and provides a standard connection for a Type A needle. The drug cartridges can be replaced independently with automated loading and priming functions.

DCA was involved in all aspects of the design, development, prototyping and evaluation testing of this sophisticated electro-mechanical device and needle hub, including software development in accordance with medical device regulations. We worked closely with manufacturing partners during pilot industrialisation phases to ensure consistency of design intent and to support consideration and resolution of design for manufacture and assembly opportunities and issues at the earliest opportunity.