Biomedical Device (BMD)

Request for Proposal: Biomedical Device

Introduction and Overview

Biomedical engineering is an incredibly multidisciplinary STEM field that almost any engineering and computer science student can enter into. It is the application of biology and engineering to design new and innovative devices to improve healthcare and medical options. Some of the most well-known biomedical devices include artificial organs, prosthetics, wearables, and surgical robots.

Biomedical devices have already saved and improved the lives of countless people. Your goal will be to develop one of these devices. Your group is tasked with developing either a prosthetic or a wearable device that can improve the quality of life of the user. The prosthetic or wearable that you will develop will need to meet some basic requirements to be considered a working prototype.

Specifications

Your team must design a biomedical device using the materials provided. An Arduino program that will direct the devices, sensors, and/or movements must be created. A cost estimate of the components of the device must be provided. All revisions to the original design must be recorded and explained. This includes technical design drawings, as well as cost estimates. All revisions to the Arduino program must be recorded and explained.

The biomedical device must be able to complete a predetermined series of tasks in a consistent and effective manner. The biomedical device options can be selected from the Device Choices list below.

The device's program may not be altered or switched during any part of its use when Benchmarking and Commissioning. The device must be fully autonomous, and cannot be altered or adjusted during testing. Please refer to the course syllabus for all due dates.

Device Choices

You must choose an option for your project out of the two given below:

• Prosthetic Option: Develop an artificial limb, a piece of technology that can be worn and can effectively replace a lost body part, that satisfies all of the following functions:
  • A prosthetic that simulates a hand which is capable of wrapping around a shopping bag handle and lifting a 1 pound weight
  • A prosthetic arm that includes an elbow which can move vertically at least 90 degrees
  • A feature simulating a wrist which can rotate at least 180 degrees.

• Wearable Option: Develop a wearable device, a piece of technology that can be worn on the human body and provide valuable health or fitness information to the wearer. This device must be able to:
  • Measure light intensity and inform you of how long you can be exposed to that light intensity before it becomes harmful
  • Measure gas in the area and warn you if the air is hazardous
  • Measure temperature and inform you of how to you can be exposed to that temperature before it becomes harmful

Microsoft Project

A project schedule must be created in Microsoft Project. Learn to use Microsoft Project by accessing the Microsoft Project Student Guide. This schedule must include all tasks related to the project from the start of the project to Early or Final submission. Click here to access the guide on how to transfer a file. The Microsoft Project schedule should include:

• Minimum of 20 tasks, excluding Milestones
• Milestones should be clearly indicated on the project plan (duration of zero days)
• Each task must include the person responsible for completing the task (resource names)
• Use the "Copy Picture" function to include the schedule in the presentations. Do not take a screenshot
• Gantt chart must be displayed alongside the tasks list (fit onto one slide)
• Gantt chart must show a progress line
• Clearly state during the presentations whether the project is on-time, behind schedule, or ahead of schedule

For help planning the project, review the manual page Planning Project Scheduling & Costs.

Drawings

You will be required to draw a CAD model of your device for Milestone presentations and Benchmark assessments. You can use any CAD software to do so. EG1003 uses and teaches Fusion 360 for labs and other SLDPs, and Fusion 360 is the recommended software for CAD. You can download Fusion 360 for free using your NYU email. Other CAD software such as SolidWorks, Inventor, and Rhino are permitted, however EG1003 does not provide resources in obtaining or learning those programs.

Using your chosen CAD software, create four drawings of the device: front, top, most detailed side, and isometric. Sensors and motors must be included in each drawing.

Each revision of the design must be documented and all changes must be presented during Milestone presentations.

Figure 1: Example of BMD Drawing

You will also be required to create a circuit diagram and a schematic diagram of your device for Milestones, presentation, and Benchmark assessments. EG1003 recommends the circuitry modeling softwares TinkerCAD and Fritzing to fulfill these deliverables. TinkerCAD is a free browser-based circuitry software that is especially useful for constructing circuit diagrams with common electrical components. For projects with more complex electrical components, Fritzing is a free circuitry software with an encompassing library of electrical components that is useful for constructing circuit diagrams and schematic diagrams. For a guide on using both softwares, please refer to this link.

Cost Estimate

A cost estimate must be generated that specifies the cost of each component and labor required for the construction of the design. Tabulate this cost information clearly in an Excel spreadsheet, using the materials cost list provided. The costs for the parts can be found in the Price List below. Help in calculating the cost is available by reviewing Planning Project Scheduling & Costs.

Create a cost estimate on a Microsoft Excel spreadsheet. The cost estimate should abide by the following specifications:

• Labor cost breakdown with hours and rates
• Consolidate low-cost pieces: wires, tape, servo motors
• Itemize high-cost pieces: Arduino board, sensors, 3D printing filament, acrylic, wood
• Total cost must be clearly shown in the bottom right corner

Price List

You should only use the materials contained in the Price List for BMD projects. If you want to use other parts, get permission from your faculty member to do so, and also to determine the cost of the parts you want to use that are not in the Price List.

Item Name	Price Per Unit
Temperature Sensor	$1.80
Pressure Sensor	$9.01
Muscle Sensor	$37.99
Muscle Sensor Electrodes	$0.50
Ultrasonic Sensor	$2.80
Pulse Sensor	$24.99
Mini Servo Motor	$1.76
Accelerometer	$4.99
Bluetooth Module	$7.99
Breadboard	$2.00
Prototyping Board	$1.00
Button	$0.10
LED	$0.10
Wire	$0.05
Tape	$0.10/ft
Glue Stick	$1.00
Superglue	$1.00/tube
String	$1.00/ft
Acrylic	$20.00/sqft
1/4" Plywood	$5.00/sqft
Velcro	$5.00/4 in
Fabric	$5.00/sqft

Engineering Notebook

While working on your project, you are expected to keep a record of all work done, as well as future plans and goals. In order to complete a Benchmark assessment, you must submit your notebook in PDF format to the EG1003 website, as well as show your Engineering Notebook to the Open Lab TA completing your assessment. A guide to writing the notebook, as well as a basic overview of its expectations and frequency at which you should log in your notebook, can be found on the Keeping a Project Notebook page.

Extra Tasks

BMD groups can be awarded extra credit by completing Extra Tasks. You can also receive extra credit for completing Benchmark A, Benchmark B, or Submission early. Refer to the EG1003 Grading Policy for exact point values.

Up to two of these tasks may be completed for extra credit. You have the freedom to decide which of these tasks you would like to complete.

• Incorporating an additional sensor
  • Each sensor must be implemented so that there is a measurable increase in the quality of the device
• Incorporating a display/touchscreen
• Developing a website or smartphone application
• Choose your own: This is approved on a case-by-case basis. You must meet with a Technical Open Lab (Tech OL) TA and the Tech OL will submit the extra credit idea for approval

Milestones, Benchmarks, and Deliverables

As work is done on the project, three Milestone presentations will report on the project's progress. All of the items assigned in each phase of the project are called Benchmark deliverables. These deliverables often consist of a combination of written submissions, presentations, and demonstrations. Benchmark assessments evaluate the progress of the project.

Preliminary Design Investigation

The Preliminary Design Investigation (PDI) is extremely important, as it lays the groundwork for the project. It outlines the project idea, inspiration, and goals.

The PDI must include:

• Cover Page
• Project Overview
• Goals & Objectives
• Design & Approach
• Cost Estimate
• Project Schedule
• Relevant Pictures

An example PDI template can be found here. The PDI is due by Benchmark A. Do not forget to include the items listed above. Use this link to access the VEX PDI Rubric.

Milestone 1

See How to Give a Milestone Presentation for the format of a Milestone presentation.

Milestone 1 should act as a presentation of your Preliminary Design Investigation. Without simply replicating your report in presentation format, take the key points to present in a concise and clear manner. The section formatting should be similar to that of the report. It is important that you outline your project goals and show that your project is realizable. This includes:

Milestone 1 Deliverables:

• Presentation:
  • Project description
  • Design approach
  • Mission statement
  • Preliminary CAD drawing of device
  • Cost estimate
  • Microsoft Project schedule
    • Click here to access the guide on how to transfer a file
  • Progress update: current state of the project

You must decide your project goal from the Device Choices list for Milestone 1. You cannot change device choices after this deadline.

Look Ahead: What tasks are planned between now and Milestone 2?

Benchmark Assessment A

Benchmarks evaluate the progress of the project. Benchmark A is due at the end of Model Shop Session II. There are penalties for not completing this on time. Refer to the EG1004 Grading Policy for more information.

To pass Benchmark A, the design must complete all of the following:

• Design & Feasibility Report
• Decide your project goal from the Device Choices list
• Develop initial CAD model
  • This is your first design/concept for what your device hardware will look like
  • Simple shapes and boxes do not count as an initial design
• Complete one of the required tasks for your device
  • Your electrical components should be created separately from your CAD model
  • EG1003 recommends using TinkerCAD simulations to complete the required tasks
  • Utilize an Arduino in TinkerCAD to activate sensors and motors to accomplish your device specifications
• Website submission of your updated Engineering Notebook

Milestone 2

See How to Give a Milestone Presentation for the format of a Milestone presentation.

Milestone 2 will be a project progress update. You must explain all changes and developments made thus far, particularly in regards to Benchmark A. Include whether or not you were able to complete your Benchmark A requirements, and if not, explain why. Also, highlight any changes you plan on making to your design or project, in general. Your Milestone 2 presentation must include:

Milestone 2 Deliverables:

• Project description
• Design changes since Milestone 1
• Design approach
• Mission statement
• CAD drawings: top, front, most detailed side, isometric
• Circuit diagram
• Flowchart of code
• Cost estimate (previous and current). What changes were made?
• Microsoft Project schedule (previous and current). What changes were made?
  • Click here to access the guide on how to transfer a file
• Progress update: current state of the project (time, budget, etc.)

Look Ahead: What tasks are planned between now and Milestone 3?

Benchmark Assessment B

Benchmark Assessment B is due at the end of Model Shop Session III. There are penalties for not completing this on time. Refer to the EG1004 Grading Policy for more information.

To pass, complete all of the following tasks:

• Updated CAD model
  • You must show the differences between your initial design and your new design
• Complete two of the required tasks for your device
  • Your electrical components should be created separately from your CAD model
  • EG1003 recommends using TinkerCAD simulations to complete the required tasks
  • Utilize an Arduino in TinkerCAD to activate sensors and motors to accomplish your device specifications
• Website submission of your updated Engineering Notebook

Milestone 3

See How To Give a Milestone Presentation for the format of a Milestone presentation.

Milestone 3 Deliverables:

• Presentation:
  • Project description
  • Design approach
  • Design changes since Milestone 2
  • Mission statement
  • CAD drawings: top, front, most detailed side, isometric
  • Arduino program
  • Cost estimate (previous and current). What changes were made?
  • Microsoft Project schedule (previous and current). What changes were made?
  • Progress update: current state of the project (time, budget, etc.)

Look ahead: What tasks are planned between now and the completion of the project?

Commissioning

Projects must be commissioned before Submission. Refer to the syllabus for Submission deadlines. There are penalties for not completing this on time. Refer to the EG1004 Grading Policy for more information.

To pass, the design must complete all of the following:

• Complete all of the required tasks for your device
  • Your electrical components should be created separately from your CAD model
  • EG1003 recommends using TinkerCAD simulations to complete the required tasks
  • Utilize an Arduino in TinkerCAD to activate sensors and motors to accomplish your device specifications
• Circuit Diagram
• Schematic Diagram

Final Design Report

The Final Design Report (FDR) provides a comprehensive overview of your project process and developments from initial brainstorm to finished proof of concept. All project expectations and outcomes must be clearly detailed in the document. This report will also provide you with documentation experience useful for completing your Senior Design final report and other projects. For RAD groups, the Final Design Report will be submitted in place of your Lab 11 report. Therefore, you do not have to complete a lab report for Lab 11.

The Final Design Report must include the following documentation:

• CAD drawings
• Commented code
• Project schedule
• Cost estimate

Use this Final Design Report template with the following outline:

• Introduction
  • Purpose of Project
  • Background
• Requirements
  • Physical Components
  • Software Components
• Procedures
  • Software Setup
  • Software Troubleshooting
• Milestone and Final Product Requirements
  • Benchmark A Requirements
  • Benchmark B Requirements
  • Final Submission Requirements
  • Human Resources and Training (e.g. TA expertise utilized, etc.)
• Results
  • Benchmark A Results
  • Benchmark B Results
  • Difficulties Experienced
• Conclusion
  • Results of Project
  • Future Improvements

Final Presentation

The Final Presentation will be a technical briefing, similar to the Milestones, but also serves as a sales presentation explaining why your company should be selected instead of the competition.

Your Final Presentation must include:

• Company profile
  • Company name
  • Employee profile, role(s), and qualifications
  • Mission statement
• Problem statement
  • Why is the project happening?
  • What does the audience need to know?
• Project objective
  • What is the purpose of your project?
  • Who does your project help?
  • What problem does your project solve?
• Project description
  • Specify LEED certification
    • Examples of LEED implementations in Revit
  • Revit drawings
    • All floor plan drawings
    • Dimensions
    • 1:240 scale
  • Views of exterior of building: front elevation, side elevation, isometric elevation
    • Dimensions
• Market and product viability
  • Does your company have competitors?
  • What makes your project unique?
  • How does your design compare to competitors - cost, quality, features?
  • Is the project versatile?
  • What is the price of your project?
• Conclusion
  • Reiterating project purpose
  • Highlight project features
  • Future goals of the company
  • Why should your company be awarded this contract?
• Video pitch
  • Price of project
  • Walkthrough animation of building in Revit
  • Embedded into Final Presentation
• Problem statement
• Solution overview
• Company description and qualifications
• Drawings
• Arduino program
• Cost estimate
• Microsoft Project schedule
• Why should the company be awarded this contract?

Submission

All SLDPs must be submitted online. Please visit this page for the link to the Project Submission form and each project’s individualized login information. To submit, login to the EG1004 website using this special login information. Submitting with an NYU account or any other account will generate an error. Components may be resubmitted at any time before the deadline. Please note that submission times are based on the most recent submission.

Please note the deliverables for this project are as follows. If any of the following items are omitted, there will be a penalty. Be sure to click "Submit" at the bottom of the form and allow sufficient time for uploading. The following list includes deliverable items that are required:

• Submission deliverables:
  • Final presentation
  • Final Arduino program
  • Initial sketch
  • All the drawings of your design (initial through final)
  • Final Microsoft Project schedule
  • Final cost estimate
  • Resume(s) (no fictitious resumes will be accepted)
  • Final Engineering Notebook

Late Submission

Late submission is not allowed. If a project does not Commission or receive Partial Commission by the deadline set forth in the syllabus, the project will not be allowed to submit and will receive a 0 for the project grade. To receive Partial Commissioning, two TAs must evaluate the project and determine its degree of completion according to the Commissioning requirements and the project will be given a grade accordingly. Please refer to the EG1004 Grading Policy for more information.

Frequently Asked Questions

Q: Can our project be a biomedical device that isn't listed in the Device Choices?

A: No. If your group would like to do a different type of biomedical device, please speak to your Recitation TA and Professor about doing a RAD project instead.