Foxpat 外科手術訓練模擬器 by Nitin Gurram is a highly esteemed winner of the very prestigious 2020 A' Design Award 銀獎 in 教育設計 Competition Category.

銀教育· 2020

Foxpat 外科手術訓練模擬器

by Nitin Gurram

Client: Zimmer Biomet

A' Design Award 銀獎 Winner in 教育 Category

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The Design

About Foxpat 外科手術訓練模擬器

Foxpat係一款可重複使用嘅膝關節置換手術訓練模擬器。呢個裝置係病人膝關節嘅實體模型，裝有感應器，能夠就手術表現提供回饋。聚氨酯製嘅骨骼同埋矽膠軟組織外層由鋁框架固定，令外科醫生可以用手術室相同嘅工具練習，毋須助手扶住膝關節。無線手術槌會記錄撞擊力度，並喺LED刻度上顯示結果。Foxpat令新手外科醫生可以從錯誤中學習，而唔會傷害到病人。

The Recognition

About the A' Design Award 銀獎

Foxpat 外科手術訓練模擬器是 A' Design Award 銀獎得主，這是授予頂級、華美而令人印象深刻的設計的極為崇高的認可。銀獎得主是極其卓越、極具創造力的作品，展現出其設計師傑出的專業技能、才華與敏銳。預計Foxpat 外科手術訓練模擬器將成為一件出色的典範之作，兼具非凡的專業性與深刻的創新性。這件贏得 A' Design Award 銀獎的設計是一項備受矚目、令人欽佩的發明，造福並拓展藝術、科學、設計和技術的界限。Foxpat 外科手術訓練模擬器是一件令人羨慕的創作，它喚起渴望，帶來積極的情感，並激發驚嘆與讚嘆。

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: Foxpat is a reusable training simulator for knee replacement surgery. Unlike the existing digital simulators, Foxpat is a physical simulation of a patient knee integrated with sensors to feedback on operational performance. The learning platform incorporates all the four stages of Kolb's experiential learning cycle; feel, observe, learn and experiment. The surgeons can use actual tools that are used in the operating room to practice independently without needing an assistant to hold the knee.
Dimensions & Packaging: Width 900 mm x Depth 600mm x Height 400mm.
Tags: Arthroplasty, Knee Replacement, Medical Training, Surgical simulator, Impact hammer
Production Technology: The product consists of polyurethane(PU) bones, 3D scanned knee anatomy, aluminium structural frame and a wireless surgical mallet. The lower leg is made up of ABS plastic, and the upper knee joint is vacuum cast with silicone of shore hardness 0030. The PU bones are vacuum casted for 320gm/cc density to simulate a realistic bone density. The low production volume of 50 pieces per year, allows producing most of the plastic and aluminium parts through CNC milling.
Design Challenge: Orthopedics surgeries involve invasive processes like cutting, milling, and hammering. Making a realistic training model simulating the ergonomics of an actual operation is quite complicated. Secondly, there is not any standardized validation procedure to feedback the surgeons. Several studies have suggested that the hammer impact is a crucial element for positive results. So the impact force is recoded through a wireless surgical mallet to feedback the user on an LED impact scale.
Research: The project was a graduation thesis took place with collaboration between Zimmer Biomet and Delft University of Technology. Oxford Partial Knee Replacement is one of the most popular Knee Replacement techniques from Zimmer Biomet. The research took place in two hospitals in Oxford, where the surgical technique was invented. The outcome of this project was expected to support Oxford training course that takes place across the world to train the novice surgeons on the surgical techniques.
Inspiration: Research shows that it takes about 25 surgeries for novice surgeons to be proficient at knee replacement surgery(Qidong et al., Journal of Orthopaedic Surgery and Research, 9:81). So designing efficient and ergonomic surgical tools is not just enough, but an excellent learning platform is crucial. This idea has led to developing a reusable surgical trainer where surgeons are allowed to make mistakes without harming a patient and gain surgical skills.
Project Duration: The project started in March 2019 in Delft, The Netherlands and finished in August 2019, and was exhibited at Innovation for Health - Design Expo in Rotterdam in February 2020.
Operation Flow: As the product is used for training the novice surgeons, the training sessions take place in a conference hall or a hospital. A training support team that organizes the training or a local technician in the hospital will set up the device. Firstly, the metal frame is clamped down to a suitable table. Secondly, a new pair of Polyurethane bones are inserted into the device and clamped. Lastly, the silicon soft tissue is wrapped around the bones and locked with a Velcro strap.
Team Members: Nitin Gurram
Image Credits: Image #1, Image #2, Image #3 and Image #4: Keyshot Renders, Nitin Gurram, 2020. Image #5: Photographer and model Nitin Gurram, Foxpat photoshoot, 2020.
Video Credits: Zimmer Biomet, TU Delft, Oxford Knee Group