Project Proposal: Design and Development of a Wristband Pulse Oximeter

This document presents a project proposal for the design and development of a wearable wristband pulse oximeter. The project aims to create a device that continuously monitors heart rate and blood oxygen saturation levels, primarily targeting athletes, pilots, and drivers. The proposal outlines the project's objectives, including the use of a MAX30102 sensor, and addresses key considerations such as functionality, performance, and interface requirements. It includes a literature review, research questions, methodology, and a detailed project plan with a Gantt chart. The project involves iterative testing, prototype development, and integration of various components, with the ultimate goal of creating a real-time device to alert users of potential hypoxia. The document also covers the design of both transmittance and reflectance oximeter prototypes, circuit design, and product concept, along with the expected outcomes and relevance of the project.

Prof. Curran/Dr. Saunders, 2013, project template v2
Project Proposal and Plan
By ‘Author Name’
Affiliation (MSc Profile or Track) & Study no.
Executive Summary
In this document we propose to construct a wearable wrist band, battery controlled pulse
oximeter. The impartial of this device is to offer the person time heart rate as well as plasma
oxygenation information. The Heartbeat oximetry information is especially treasured to persons
working close to their peak implementation level or walkers working a t high elevation. In the
two cases, the client will have substantially more essential things to concentrate on so the Pulse
oximeter will endeavor to be brief in its UI and unpretentious in its measurements.
1. Introduction
Heartbeat oximeter is a therapeutic instrument that can recognize heart - rate and oxygen
immersion as marks of our level of wellbeing condition. It can be executed as a little gadget, and
subsequently, has been utilized generally in various applications. The center hypothesis behind
pulse oximeter is the changeability of the assimilation coefficient of photons experiencing human
tissues at various wavelength. Since individuals are thinking about the measure of oxygen
immersion in our blood, the particular wavelength district ought to be settled which is the
touchiest to the oxygen in our blood. In our blood, oxygenated hemoglobin (Hb) as well as
deoxygenated hemoglobin (deoxy - Hb) , which can be utilized to gauge human blood oxygen

Prof. Curran/Dr. Saunders, 2013, project template v2
level, have more grounded safeguards of light with wavelength in the scope of 650 nm - 1000 nm
. In this wavelength go, different layers of human body, for example water as well as fat, have a
low ingestion coefficient contrasting that of oxygenated hemoglobin along with deoxygenated
hemoglobin. Additionally, the light assimilation of Hb as well as deoxy - Hb at the two unique
wavelengths is extraordinary. At the point when the light of around 650 nm wavelength is
produced to our blood, deoxy - Hb ingests more than oxy. Also, the other way around , if the
wavelength is around 1000 nm, a larger part bit of photons are consumed by Hb. In this way, the
proportion of assimilation at the two distinct wavelengths can be utilized to decide the oxygen
immersion level in the blood.

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2. State-of-the-art/Literature Review
This wrist band pulse oximeter extend in applications from restorative to fitness. Customers will
expect comparable highlights as well as these should be adjusted with the emphasis getting the
correct measure for the user pulse rate (Forget P,2010). The three prerequisite regions wrist band
pulse oximeter picked are utilitarian, execution, along with interface. Useful prerequisites list
how the gadget ought to work (G. Ingram, 2011). Execution prerequisites list what ought to be
quantifiably expected of the wrist band. Interface prerequisites list what the client ought to
anticipate from connecting with the wrist band (Safeer , 2015).
Practical prerequisites
 The band of the gadget ought to be agreeable to wear for 24X7 hours. This implies it's
sweat/water safe, ought to be made of a skin benevolent material, as well as be movable
to fit most wrists (Adochiei , 2011).
 The LEDs as well as photodiodes should lay as flush to the skin as conceivable to limit
clamor to the photodiodes and keep them from rubbing in an awkward way (Debas
H,2006).
 The gadget should show exact and auspicious information in view of real estimations.

Prof. Curran/Dr. Saunders, 2013, project template v2
Execution prerequisites
 The battery life should be sufficiently long so the wrist band endures through out the day .
 The equipment ought to have the capacity to process at a rate of 40 Hz to show
convenient and precise information (Watthanawisuth,2010).
 The precision of the information showed ought to be inside 3% . As a result of the
commence for building the wrist band to keep a condition which has a little resistance for
blunder, anything under 3% would put the person in danger (Rekha Chandra R,2015).
Interface necessities
 The interface ought to be instinctive to utilize so the person doesn't need to spend
excessively mental aptitude working it. The objective of the gadget is to anticipate
accident so if the interface cautions the pilot of low blood oxygen level however the pilot
crashes since he's upsetting the interface, the gadget isn't achieving its’ objective
(Pang,2014).
 Content ought to be as substantial as conceivable. Cases needs to limit diversions and the
bigger the content, the less time the pilot needs to spend endeavoring to peruse what the
content says (Cannesson, 2008).

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3. Research Question, Aim/Objectives and Sub-goals
Inquiries regardless we have:
Is there a less complex approach to direct a heartbeat oximeter? How might we better see a
portion of the parts and gadgets we intend to utilize? What materials do we as of now have that
we won't have to represent in our aggregate cost?
Aim/Objective
As a rule, nonstop oximetry detecting is required so as to assemble enough measures of
information so a legitimate examination can follow. This implies the client ought to be furnished
with a gadget he can wear ceaselessly, that can quantify beat oxymetry, with least distress amid
every day exercises, therefore diminishing relinquishment rates. My objective will be to attempt
and utilize the MAX30102 sensor, which is a little and lightweight heartbeat oxymetry sensor
offered by the organization Maxim Integrated, to ideally create a wristband prepared to do
continuously observing oximetry levels in the patient. The initial phase in this venture is to
distinguish the exactness of the sensor, how splendidly lit conditions affect it (since light may
diffuse the red and infrared light from the sensor), how the position of the sensor influences
comes about, and in addition the impacts of skin temperature.
Sub-Goal

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A pulse oximeter is used to gage the level of submersion in a man's blood. A sensor is put over a
bit, periphery part of the patient's body which non-rudely sends light waves through, for instance,
a finger to a photodetector. It is most consistently used as a piece of clinical settings, and was
first for the most part used as a piece of 1964 and sold by Hewlett-Packard. Regardless, its usage
was to a great degree limited by size and cost. Starting now and into the foreseeable future, it has
been made to be considerably more diminutive, more affordable and more successful. The beat
oximeter gives the level of blood doused by oxygen and can relate such regards to hemoglobin
drenching. We are both enthused about how it capacities, as we were involved with the social
protection field. Progressing creative headway along these lines propels understanding outcomes.
The "mystery" of this advancement is the way the oximeter can distinguish differentiates in a
human finger or blood obsessions and volumes to give dependable results about oxygen
submersion. Speaking to these abberations is in every way the most complex bit of the technique,
as the data amassing from light wave control seems, by all accounts, to be more speculatively and
physically fitting.
4. Theoretical Content/Methodology
Research technique
The examination for this task was finished utilizing different on the web and diary sources.
Different colleges as well as universities have distributed papers handling a comparative gadget

Prof. Curran/Dr. Saunders, 2013, project template v2
and moving toward it in various ways. This exploration yielded thoughts for arrangements and
testing.
Group specialized strategy
The groups' primary type of correspondence is through week after week gatherings where the
arrangement for every week is set. Present and future deterrents were likewise talked about amid
this time with the objective of guaranteeing that each colleague was a la mode on the
undertaking.
Outline Method
Phase III
The group explored the beat oximetry industry and contrasted the present items accessible with
buyers. This examination incorporates look ing into plan options. This is additionally when the
select particle of which segments to use for the distinctive parts of the task happens .
Phase III
The group concentrated on getting all the individual segments of the task working. This include s
constructing a seat top transmittance oximeter model . This model demonstrated that the majority
of the parts cooperated. This stage is a change al organize in the vicinity of one and three.

Prof. Curran/Dr. Saunders, 2013, project template v2
Phase III
The group progressed the seat top model of a transmittance oximeter into a reflectance show. The
group built up a lodging unit and experienced emphasess or plan change. The group built up a
realistic UI and cautioning framework. This stage is a transitional stage in the vicinity of three
and four.
Phase IV
The group incorporated the diverse parts of the band top model, lodging unit, realistic UI, and
cautioning framework into one working model. This model and alongside this report were the last
deliverable s for the venture.
Testing Method
Cases utilized an iterative testing strategy. The approach was to build up an objective and break it
into littler sub - errands. Each subtask was looked into and an answer was composed, actualized ,
and tried. In the event that the arrangement actualized is effectively tried, at that point the
following undertaking is begun. On the off chance that the arrangement actualized doesn't tackle
the issue, at that point the procedure is rehashed.

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5. Experimental Set-up
The motivation behind this task was to plan and assemble a model of a reflection oximeter
framework. From the expectations in this report future work will have the capacity to be finished
to create a market prepared gadget. The expectations for this report are recorded underneath .
Transmittance Oximeter Prototype
This was the main model created to show the practicality of a heartbeat oximeter framework.
This framework is exceptionally simple and utilized for framework tests and s oftware
advancement.
Reflectance Oximeter Prototype
This is the principle deliverable for this undertaking. This is the blend of the greater part of the
diverse frameworks that chipped away at for this undertaking. This model could be taken and
formed into an attractive item.
Oximeter Circuit Design
The equipment for this framework shall be consolidated into one schematic utilizing CAD
framework. A circuit was then made from this record so a created circuit board could be printed.

Prof. Curran/Dr. Saunders, 2013, project template v2
Item Concept Design
Using the estimated size of the last plan hardware if fabricated on a PCB and the sizes of other
comparable gadgets, the group utilized Inventor to make an idea outline of what the last item
would look like on the off chance that it was produced completely and conveyed to advertise.
6. Results, Outcome and Relevance
The proposed gadget isn't planned for restorative applications yet rather for competitors to pilots
and drivers. Pilots and drivers specifically need to know when their blood oxygen level starts to
drop. Lamentably, most business, versatile heartbeat oximeters are implied for spot checking and
are too unwieldy to wear . This heartbeat oximeter will be a genuine - time gadget intended to be
worn by the client and equipped for notice the client when his or her blood oxygenation dips
under a specific point. This notice will ready pilots, drivers to the beginning times of hypoxia.
Competitors can likewise make utilization of this element to better comprehend their execution.
In the event that their blood oxygen level starts to plunge, they will realize that it is their
cardiovascular framework that is keeping them down. The final product design shall look like
this:

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7. Project Planning and Gantt Chart
Task Name Duration Start Finish
Wrist Band Pulse Oximeter 104 days Mon 10/23/17 Thu 3/15/18
Iteration Stage 30 days Mon 10/23/17 Fri 12/1/17
System Design Stage 30 days Mon 12/4/17 Fri 1/12/18
Scope of project 10 days Mon 12/4/17 Fri 12/15/17
Architecture design 10 days Mon 12/18/17 Fri 12/29/17
Testing & Finalize system design 10 days Mon 1/1/18 Fri 1/12/18

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System Development 18 days Mon 1/15/18 Wed 2/7/18
Software coding 7 days Mon 1/15/18 Tue 1/23/18
Develop Prototype 3 days Wed 1/24/18 Fri 1/26/18
Test and Update Prototype 2 days Mon 1/15/18 Tue 1/16/18
Finalize Development 2 days Mon 1/29/18 Tue 1/30/18
Document Development 6 days Wed 1/31/18 Wed 2/7/18
Final Integration 20 days Thu 2/8/18 Wed 3/7/18
Integration Testing 2 days Thu 2/8/18 Fri 2/9/18
User Acceptance Testing 16 days Mon 2/12/18 Mon 3/5/18
Maintenance and Deployment 2 days Tue 3/6/18 Wed 3/7/18
Support 6 days Thu 3/8/18 Thu 3/15/18
Gantt Chart