Transformer (Powered Surgical Stapler) by EVA ZHANG
2017 - 2018, Golden A' Scientific Instruments, Medical Devices and Research Equipment Design Award Winner
In terms of styling, our inspiration came from the human hand: although we initially experimented some more geometrical shapes, we finally opted for a more organic one. Ripples and waves along the surface are intentionally designed and carefully positioned to offer a better grip and mobility to the doctor, combining hard and soft-touch surface finishes.
The system includes an universal handle(reusable and single patient use) and 5 different stapler working head (Circular Stapler, Linear Stapler, Linear Cutter, Endoscopic linear cutter and straight linear cutters). The reusable universal handle can be steam sterilized and used in up to 100 surgeries. The whole system designed to fulfill the following ideas: 1. Reduce the firing force significantly:2. Standardize the clinical outcomes: 3. Intuitive design allow users a quick plug in method,4. Design of earthward to save materials
Design Challenges
For the specific nature of human hands, especially considering users with different genders, ethnicity and consequently their biometrics, our greatest challenge was to achieve a one-solution-fits-all product design. On top of this, we also had to consider (study + analyze + consider) different surgical procedures, requiring the doctor’s wrist and hand to operate in totally different angles/directions. Cooperating with experienced surgeons allowed our team to learn from their feedback and proceed long an incremental design path. Another critical factor was the technical development of structures and features required to pass all certifications.
Production Technology
At the same time, our highly innovative product required a fresh and recognizable look, starting from the universal concept of FORM FOLLOWS FUNCTION. Step 1 was to define a spectrum of functions (different surgeries require different hand gestures) and cross-reference them with different hand-sizes. A very hard task that we accomplished by using 30+ 1:1 clay models. Once the overall dimensional package had been defined (both for mechanical and electronic internal layouts and for ergonomics), we could then proceed with the actual styling phase, following these steps: hundreds of sketches, selection, rough 3d models, selection, 3d printed models (50+), final styling 3d, photorealistic renderings – and of course further refinement as we got closer to manufacturing.
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