Table of Contents
Project Objective StatementTo plan, design, and create a mechanical heart pump that simulates the mathematical models of the circulatory system to be studied and used by the students and instructors of BIME 492. This project will work in conjunction with the physical model of the systemic circulatory system, P16081.
See the link to the most up to date word document of our Project Objective Statement here
To locate any and all documents used during our Problem Definition Review Phase, see our Problem Definition Review Directory
Project SummaryA Mechanical Heart Model (MHM) is a device that allows for the simulation of human heart function without biologic restraints. As it currently stands, students in BIME 492 are forced to use themselves as subjects when experimenting with heart function. A MHM will allow these students to physically study the heart under different conditions. This allows for the students to gain a more solid foundation in understanding basic heart function. Current MHM devices are too expensive and complex for use by these students.
The goals of this project are to explore currently marketed MHM devices. Specifically, we will attempt to better cost efficiency and operational simplicity, as well as a design that clearly displays heart subsystem function to the user. The expected result is a practical prototype that can model various blood flows of a human heart, with the eventual goal of being reproducible and used in RIT BIME labs. This prototype design must adhere to current RIT BIME lab resources and needs.
For more detailed information on our project, see our Project Readiness Package
Background & BenchmarkingSolutions to our project currently exist on the commercial market, but are unfortunately too complex & expensive for what the RIT BIME department is looking for. These models are capable of producing an adjustable, pulsatile pressure & flow like that of the human heart. To aid in our design of our MHM, we have begun looking up the specs on these models to compare them to our own expected design. This process is known as product benchmarking.
The above table displays the parameters for existing models. Some models, such as the Dr. Day model, were not available for immediate investigation, but will be updated shortly upon review.
To view the full up to date excel document of our benchmarking, click the link here
See the direct link to the Pulse Duplicator here
See a link to the Harvard Apparatus here
Primary StakeholdersStakeholders are persons, groups, or organizations who are involved in or are affected by a process, which in this case, is the design and development of a mechanical heart pump. Below is a list of this project's stakeholders and their respective primary concerns.
- Dr. Bailey, Instructor: Model is easy to use and can model various heart frequencies, flowrates, and pressures. Pump should utilize nonhazardous working fluid (water), and works in conjunction with P16081.
- Dr. Phillips, Investor: Cost-effective final product that makes good use of funds provided.
- BIME Students: Ease of use, specifically for data collection and running the pump at various states. Allows students to effectively learn new material.
- RIT: Pump improves educational quality of BIME program.
- KGCOE: Reputation of program will be increased by successful completion of project
- P16081: Heart pump easily combines with systemic model of circulatory system.
Customer Requirements (Needs)
Purpose: Decompose the Problem Statement into functions of elements needed to satisfy the customer.
See a link to our .xlsx file of our current Customer Requirements
Engineering Requirements (Metrics & Specifications)
Purpose: Create a contract between the engineer and the customer where indisputable satisfaction of the engineering requirements equates to customer satisfaction
See a link to our .xlsx file of our current Engineering Requirements
Risk ManagementThe likelihood of project success has been assessed by focusing on the most important failure modes. Below is a draft list of our very first risk assessment:
House of Quality
- Confirm that satisfaction of the Engineering Requirements implies that all of the Customer Requirements are met.
- Facilitate design trade off decisions
Design Review Materials
See a link to our Problem Definition Review Powerpoint Presentation
Plans for next phase
- As a team, where do you want to be in three weeks at your next review?
This Gantt Chart shows our progress over the past 3 weeks, and where we hope to be by the end of the next cycle (click to enlarge)
See a full PDF of our Gannt Chart in this link