Foxpat

Surgical Trainer for Zimmer Biomet

Foxpat is a reusable training simulator developed to train the surgeons for Oxford Partial Knee Replacement surgery. It is a realistic simulation of a regular patient's knee, integrated with sensors to feedback on the effectiveness of the surgical procedure. With Foxpat, surgeons can individually practice multiple times before operating on a real patient. It provides a safe and realistic environment where surgeons are allowed to use actual tools that are used in the operating room and make mistakes to learn without harming a patient.

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Foxpat by Nitin Gurram

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Surgical Trainer by Nitin Gurram

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Nitin Gurram Foxpat

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Nitin Gurram Surgical Trainer

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Foxpat Surgical Trainer Press Releases

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Foxpat Surgical Trainer Media Articles

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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.

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.

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.

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.

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

Project Overview

Foxpat Surgical Trainer has been a Silver winner in the Education, Teaching Aid and Training Content Design award category in the year 2019 organized by the prestigious A' Design Award & Competition. The Silver A' Design Award celebrates top-tier designs that embody excellence and innovation. This award acknowledges creations that are not only aesthetically pleasing but also highly functional, reflecting the designer's deep understanding and skill. Silver A' Design Award recipients are recognized for their contribution to raising industry standards and advancing the practice of design. Their work often incorporates original innovations and elicits a strong emotional response, making a notable impact on the improvement of everyday life.

Silver Recognition

Nitin Gurram was recognized with the coveted Silver A' Design Award in 2020, a testament to excellence of their work Foxpat Surgical Trainer.

Nitin Gurram Press Releases

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Foxpat: A Reusable Surgical Trainer for Knee Replacement Surgery

Nitin Gurram Introduces Foxpat, a Revolutionary Surgical Training Simulator

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