Powerpoint template for scientific posters ... - Cherry Gregory

Powerpoint template for scientific posters ... - Cherry Gregory

AFFORDABLE INSULIN PUMP
Cherry Gregory, Young-Jun Jeon, Joshua Stubbs, and McKayla Whitehead
Project Advisor: Dr. Bruce Gale
University of Utah Department of Mechanical Engineering
Testing Resulting
Testing Resulting

Background
Background
`

Individuals with Type I diabetes need to maintain their blood sugar at
a consistent level to maintain a healthy lifestyle. One of the ways
they do that is with an insulin pump. However, most insulin pumps
on the market are expensive. Even with health insurance, it can cost
several hundreds of dollars to purchase an insulin pump. Our aim is
to reduce the cost of an insulin pump by developing an assembly kit
that can be customized by the user. The benefit is that any part that
breaks can easily be replaced, without the cost of replacing the
entire pump.

Degrees vs Units of Insulin
12

Units of Insulin

10

Objective
Objective

8
Theoretical
Experimental

6
4
2

Construct a model for less than $500
Deliver the insulin within a margin of error of 1 unit of

0
0

1

2

3

4

5

6

7

Angle Input (Degrees)

insulin
Design a intuitive user interface for controllability
Design a customizable system for user satisfaction

Test 1

Specifications
Specifications

Metric

Units

Safely and Accurately
Deliver Medical Fluid

Units

+ .5

+1

+ 0.87

Accuracy of Force Sensor

Grams

+2

+5

+ 2.54

Test 2

Theo
Angl
Angl
Angle Error
e
e

Casing Design and Components

Ideal
Value

Motor
Accuracy

Margin Actual

Test 3

Std
Avg.
.
Erro Angle Error Error Dev
r

20
60
100

21
60
99

5%
0%
1%

20
58
101

0%
3%
1%

21
59
99

5%
2%
1%

3%
2%
1%

0.47
0.82
0.94

140
180

140
177

0%
2%

141
178

1%
1%

140
178

0%
1%

0%
1%

0.47
0.47

1.4%

0.6
1

Avg.
Reflective Sensor Able to
Compute Error

Yes/No

Yes

-

Yes

Accuracy of Motor

Degree

+1

+5

+1

Length of Battery Life

Hours

24

>6

6.2

Design Creates a Feeling of
Control and Confidence

-

810

>6

8

Easy to Travel with and Non
Obtrusive to Everyday Life

mm^3

185,000

<230,0 00 226,302 Price of Assembly Kit $ $400 <$550 Design Features Design Features Customizable parts and case Programmable features Replace parts if they break Interactive and intuitive LCD screen and button control Sensors for accuracy/error Future Improvement Future Improvement Improve battery life Make customized microcontroller Use less battery life Exactly what we need and nothing extra Reduce size Customizable silicone cover Water proofing Reduce damage if dropped Interface Flow Chart Interface Flow Chart Time $250 Bolus Edit Time Hours Inject Bolus Bolus Amt Basal Amt Edit Basal Minutes Edit Bolus Increase Hold up Btn Increase Decrease Decrease Conclusion Conclusion The Affordable Insulin Pump does safely and accurately deliver insulin to the customer to control their blood sugar. The Affordable Insulin Pump would only cost the customer $250, meeting the specification for affordability. However, the casing was too large and the battery dies too quickly. By customizing the LCD screen and microcontroller, the size would be reduced and would allow a smaller battery.

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