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Reliable and Smart

Bionic hands in the market today either are reliable yet completely manual, or smart and expensive with a short battery life. With GRASP, the design of an ergonomic bionic hand, we plan to change that. We are trying to engineer a hand that offers the same functionality as your natural hand, without compromising strength and providing a battery life of 10 hours, so that people with amputations and/or congenital defects can enjoy life just like any other person.

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Intuitive

to control GRASP we are developing 2 concepts: an SEMG sensor which determines electrical signals sent to the stump of the arm to determine the motion the user desires, and voice and manual control via a companion software running on your smartphone. To ensure the user recieves output signals from GRASP's onboard sensory abilities, we are developing a unique pressure feedback system. This will allow the user to get used to the system in 3 days.

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Cost Effective and Antropomorphic

Most smart bionic hands available today are costly. With GRASP, we are trying to develop an easy to manufacture bionic hand using DFM and DFA principles, cost effective COTS components, all the while ensuring that the hand remains antropomorphic to ensure that it is intuitive to use and remains acceptable in society, and remain with a budget of $500.

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Wrist Actuation Design

The team has spent over 20 days in analysis and design of a wrist actuation mechanism which allows supination and pronation of the wrist, along with flexion and extension.

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Finger Actuation Design

The team has spent over 35 days designing 7+ finger actuation concepts. The team is currently proceeding with a linear actuator design which has won in a weighted decision matrix for cost, speed of actuation, and force of actuation.

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PCB Designing

The team has spent over 56 days in designing 2 PCB schematic circuits for a boost converter and a multilayer battery management circuit

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Companion Software Design

The team has a dedicated software subteam looking into designing a companion software for the bionic hand. Thus far, the UI of the software has been completed, and the team is focusing on back end coding.

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Custom Companion Software

The team has finished generating the UI of a custom iphone software which will connect to the chosen STM32 microcontroller via bluetooth to allow more control over the device, inclusive of mapping activity, providing voice control for ease of choosing grip positions, and many more other functionalities.

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Custom Control and Signal Processing

The team has specified a li-ion battery which will be present along with multiple control circuits, including a battery protection circuit and boost converter circuit. This will allow power to be routed within allowable voltage and current.The signals team is writing code via the use of database for EMG signals to determine the output required for an input signal.

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Custom Actuation System

The team has finished generating over 7 finger actuation concepts, inclusive of powerscrews, actuators, and hydraulics. The team has also generated 5 novel wrist actuation concepts. The team has conducted IP research, literary research, and a detailed needs analysis to determine what is required in the bionic hand.

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Novel Sensory and Feedback System

The team is currently working on a novel signal processing system which will allow the device to determine the geometry of objects and their rigidity. The team is considering multiple ideas inclusive of FSR's, Load cells, Capacitors, IR, and cameras.

Timeline for GRASP

Year 1: Designing a Competitive Bionic Hand

The team is currently designing a competitive bionic device for the ARM race in Cybathlon 2020. The concepts and lessons learnt along with the publicity gained for the team will help us move onto year 2 with the device.

Year 2: Designing a Mass Produced Hand

The team plans to use the lessons learnt in year 1 to relook at the designs conceptualized for the hand along with the enclosure design, PCB schematics, and software and implementing lessons learnt. The team will focus on reducing the time and cost taken to manufacture the product using DFM and DFA principles.

Year 3: Distribution of Device

The team plans to work with training prosthesists to distribute their device at a very low cost to people needing it in Vancouver.

Know more about our goal.

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The team's ultimate goal for this project is to compete in the ARM race in Cybathlon 2020. The event will happen in ETH Zurich, with teams coming in from all over the world to compete in the biggest bionic competition in the world. This competition happens every 4 years, and we hope to be a part of it. We are in discussion with the competition committee to enquire concerns we have and are preparing our device to fulfill the 6 tasks present in the ARM race. For more details, kindly visit the Cybathlon page linked below.

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Mobirise themes are based on Bootstrap 3 and Bootstrap 4 - most powerful mobile first framework. Now, even if you're not code-savvy, you can be a part of an exciting growing bootstrap community.

Choose from the large selection of latest pre-made blocks - full-screen intro, bootstrap carousel, content slider, responsive image gallery with lightbox, parallax scrolling, video backgrounds, hamburger menu, sticky header and more.