Biomedical Device (BMD)

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RFP*: Biomedical Device

* RFP is an acronym for Request For Proposal. Internationally, RFPs are called ITTs, an acronym for Invitation To Tender governmental agencies use RFPs to solicit new business.

Note: You should only use the materials contained in the Price list for Arduino Parts for Biomedical 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 this price list.

Introduction & Overview

Biomedical engineering is an incredibly multidisciplinary STEM field that almost any engineer and Computer Science student can enter into. It is the application of biology and engineering to make 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 build a model of your design 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 pre-selected series of tasks in a consistent and effective manner and complete any of the Extra Tasks available. 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 not altered or adjusted during testing. Please refer to the course syllabus for all due dates.

Device Choices

Prosthetic Option: Develop an artificial limb, a piece of technology that can be worn and can effectively replace a lost body part, that fits under one of the following categories.

  • 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 vertically at least 90 degrees and a feature simulating a wrist which can rotate at least 180 degrees. This arm must include a hand-like feature that does not need to be functional.


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 is often assistive technology that fits under one of the following categories.

  • A wearable device that can measure light intensity and inform you of how long you can be exposed to that light intensity before it becomes harmful.
  • A wearable device that monitors your heart rate and warns you when your heart rate becomes irregular.

Extra Tasks

One of these tasks MUST be completed to complete the project, but all others can be done for extra credit. You get to decide which of these tasks you would like to complete, pick up to two.

  • Using more than one sensor
    • Each sensor must be used so that there is a measurable increase in the quality of the device
  • Incorporating a display/touchscreen
  • Developing a website or smartphone application
  • Implement at least one additional machining method (3D printing, laser cutting, woodworking, etc.)
  • Choose your own: This is approved on a case-by-case basis. You must meet with a RAD OL and the RAD OL will submit the extra credit idea for approval

Machining Methods

These are the machining methods that will count toward Benchmarking, Commissioning, and Extra Credit. Currently, EG1003 only offers 3D printing, while most other machining methods must be completed through the MakerSpace. You must sign-up for a training session to use these machines (MakerSpace training times can be viewed here). Some of these machining methods require extra materials that not all groups have access to.

  • 3D printing (available through EG1003, more filament types and build plate dimensions available through the MakerSpace)
  • Laser cutting (wood or acrylic)
  • Woodwork (hand and power saws available in the MakerSpace)
  • Mold casting (counts as two types if you manufacture the mold)
  • Composite materials (carbon fiber, glass fiber, or silicone casting)
  • CNC milling (available in the MakerSpace)

Model

You must build a scale model (1:1) of your design. The following materials will be provided in your kit or are available upon request, some materials you can only have a certain number of:

  • Arduino board
  • Temperature sensor
  • Light sensor
  • Pressure sensor (1)
  • Muscle sensor (1)
  • Ultrasonic sensor
  • Mini servo motors (8)
  • Small display (1)
  • Pulse sensor (1)
  • Bluetooth module (1)

The following miscellaneous materials are also available upon request:

  • Buttons
  • LEDs
  • Wires
  • Tape
  • Glue
    • Superglue
    • Hot glue
  • String
  • 1 ft^2 acrylic (1)
  • Wood (4)
  • Breadboard
  • Prototyping board
  • Velcro
  • Fabric
  • Batteries

Cost Estimate

Once a biomedical design is complete, a cost estimate must be generated that specifies the cost of each material and labor required for the construction of the design. Tabulate this cost information clearly in an Excel spreadsheet, using the materials cost list provided. Help in calculating the cost is available by reviewing How to plan the schedule and calculate costs for a project. The costs for the parts can be found on the Price List for the Biomedical Device.

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
  • No decimal places - this is an estimate after all. Round appropriately
  • Total cost must be clearly shown in the bottom right corner

Price List

  • Temperature Sensor: $1.80
  • Light Sensor: $1.30
  • 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
  • Button: $0.10
  • LED: $0.10
  • Wire: $0.05
  • Tape: $0.10/foot
  • Glue Stick: $1.00
  • Superglue: $1.00/tube
  • String: $1.00/foot
  • Acrylic: $20.00/square foot
  • Wood: $5.00/square foot
  • Breadboard: $2.00
  • Prototyping Board: $1.00
  • Velcro: $5.00/4 inches
  • Fabric: $5.00/square foot
  • Bluetooth module: $7.99

Milestones and Benchmarks

As you work on your project, you will be required to present periodic reports on your progress. We call these Milestones. All the items assigned in each Milestone are called deliverables. These deliverables often consist of a combination of written submissions, presentations, and demonstrations.

Milestone 1

Prepare a preliminary design, a cost estimate, and an MS Project plan.

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

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

Milestone 1 Deliverables:

  • Presentation:
    • Project description
    • Design approach
    • Mission statement
    • Preliminary CAD drawing of robot
    • Cost estimate
    • MS Project schedule
    • Progress update: current state of the project

Benchmark Assessment A

Benchmark assessments evaluate the progress of the project. Benchmark Assessment A is due at the end of Model Shop Session 1. There are penalties for not completing on time. Refer to the EG1003 Grading Policy for more information.

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

  • 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
  • One working sensor with wiring completed & Arduino code completed
    • The Arduino code can display data with proper units
    • Your sensor will depend on which biomedical device you chose from the Device Choices list

Milestone 2

Using a CADing software, prepare four views of the latest design: front, top, most detailed side, and an isometric drawing. Also, create a drawing of the gear trains. Complete the latest Mindstorms program and the latest MS Project plan reflecting any schedule changes. Finally, calculate a revised cost estimate.

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

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

Milestone 2 Deliverables:

  • Presentation:
    • Project description
    • Design approach
    • Design changes since Milestone 1
    • Mission statement
    • CAD drawings: top, front, most detailed side, isometric, gear train
    • Mindstorms program
    • Cost estimate (previous and current). What changes were made?
    • MS Project schedule (previous and current). What changes were made?
    • Progress update: current state of the project (time, budget, etc.)

Benchmark Assessment B

Benchmark Assessment B is due at the end of Model Shop Session 2. There are penalties for not completing on time. Refer to the EG1003 Grading Policy for more information.

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

  • Updated CAD model
    • You must show the differences between your initial design and your new one in order to complete this benchmark
  • Use one of the accepted machining methods to make the body of your device
    • The device does not need to be put together but the pieces must be manufactured
    • For example, you have laser cut all the individual pieces but have not glued them together or 3D printed a claw and arm for your prosthetic but have nothing attached yet
  • Solder sensor to a prototyping board

Milestone 3

Using your CAD program of choice, prepare four views of the latest design: front, top, most detailed side, and an isometric drawing. Complete the latest Arduino program and the latest MS Project plan reflecting any schedule changes. Finally, calculate a revised cost estimate.

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

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?
    • MS Project schedule (previous and current). What changes were made?
    • Progress update: current state of the project (time, budget, etc.)

Commissioning

Refer to the syllabus for the commissioning deadline. There are penalties for not completing on time. Refer to the EG1003 Grading Policy for more information.

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

  • Sensor must be fully incorporated into the design
    • All sensors work with one program and there is a proper battery attached
  • Device can complete the tasks listed in the Device Choices list
  • One extra task MUST be completed from the Extra Tasks list

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. Please include the following:

  • Problem statement
  • Solution overview
  • Company description and qualifications
  • Drawings
  • Arduino program
  • Cost estimate
  • Microsoft Project schedule
  • Video demonstration
  • Why should the company be awarded this contract?

Submission

All SLDPs must submit online. Please visit https://eg.poly.edu/finalSLDP.php for login information and the link to the Project Submission form.

Students must be logged into the account provided at https://eg.poly.edu/finalSLDP.php. Submitting with your NYU account or any other account will generate an error.

Submissions may be edited at any time before the deadline. Please note that submission times are based on the last submission. Submissions that qualify for Early Submission will lose the Early Submission Extra Credit if the submission is edited after the Early Submission deadline.

Please note the deliverables for this project are as follows. If any of the following items are omitted, you will be penalized. Be sure to click SUBMIT at the bottom of the form.

  • Project deliverables:
    • Final presentation
    • Final Arduino program
    • Initial sketch
    • All the drawings of your design (initial through final)
    • Video
      • The video must show your device completing all Commissioning and Extra Tasks
    • Final Microsoft Project schedule
    • Final cost estimate
    • Resume(s) (no fictitious resumes will be accepted.)

Early Acceptance

If you submit your project one academic week early, you are eligible for a bonus that will be added to your final semester-long project grade. You must submit all deliverables one academic week before the submission deadline (see syllabus for exact date). The deliverables received early are the ones you will use in your presentation. No adjustments to the deliverables submitted will be accepted.

Late Submission

Late submission is not allowed. If you do not commission or partial commission by the deadline set forth in the syllabus, you will not be allowed to submit and will receive a 0 for the project grade. In order to receive partial commissioning, two TAs must analyze the project and determine its level of completeness in terms of commissioning requirements. Please refer to the EG1003 Grading Policy for more information.

Frequently Asked Questions

There are currently no frequently asked questions.