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A

Project Report

On

Fabrication of Open Syringe Pump

Made By: Guided By:

Mechaholic Prof.

Team Member:

Year:

2017 - 2018

Submitted to:

Department of Mechanical Engineering

University

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Acknowledgement

I take this opportunity to express my profound gratitude and deep regards to my guide Prof.

for his exemplary guidance, monitoring and constant encouragement throughout the course

of this thesis. The blessing, help and guidance given by him time to time shall carry me a long

way in the journey of life on which I am about to embark.

I also take this opportunity to express a deep sense of gratitude to my University for cordial

support & guidance to prepare the project and it always useful for me in the future.

I am obliged to staff members of workshop, for the valuable information provided by them in

their respective fields. I am grateful for their cooperation during the period of my project.

Lastly, I thank almighty, parents, friends and my project colleague for their constant

encouragement without which this project would not be possible.

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INDEX

1. INTRODUCTION ________________________________________________ 1

2. WHY WE HAVE SELECTED THIS PROJECT ____________________________ 2

3. DESIGN AND CALCULATION OF PROJECT ____________________________ 3

4. PARTS OF OPEN SYRINGE PUMP __________________________________ 4

5. WORKING _____________________________________________________ 5

6. ASSEMBLY ____________________________________________________ 6

7. HOW TO OPERATE : STEP BY STEP __________________________________ 7

8. PARTS AND OPERATION CARRIED OUT _______________________________ 8

9. APPLICATION ___________________________________________________ 9

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10. POSSIBILITIES OF IMPROVEMENT IN OUR PROJECT _____________________ 10

11. OUR EXPERIENCE DURING THE PROJECT _____________________________ 11

12. CONCLUSION ___________________________________________________ 12

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1. Introduction

An open syringe pump is a small infusion pump (some include infuse and withdraw

capability), used to gradually administer small amounts of fluid (with or without

medication) to a patient or for use in chemical and biomedical research.

A syringe pump pushes out small, accurate amounts of liquid. The application space is

huge, from medical applications to food engineering! They're also extremely useful in

biological research.

Syringe pump are also useful for delivering IV medications over several minutes. In the

case of a medication which should be slowly pushed in over the course of several

minutes, this device saves staff time and reduces errors.

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2. Why we have selected this project?

We wanted to do something different from others, this pump has been recently made

open source and it is sold at very high cost so this is a step to show that this component

can be made easily at low cost and help in research of small laboratory and hospital

which cannot afford it.

As technology is advancing day by day it is making life easier and one of the rapid

growing sector is bioscience.

This pump has wide application in Bio-Science and also for patients.

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3. Design and Calculation of Project

Diameter of Syringe (d) = 29 mm

Pitch of Lead Screw = 1.75 mm

Steps of stepper motor = 100 step/rev

1. Distance to supply 1ml fluid

1ml = 1cm3 = 1000 mm3

Length x Area = Volume

𝑙 =1000∗4

𝜋∗(292)

L=1.5 mm.

2. Steps to move 1.5 mm

=1.5∗100

1.75

= 85.71 Steps

85.71 Steps to supply 1 ml fluid

3. Flow rate (Q)

Speed of stepper motor = 30 rpm

Flow rate = Pitch x Speed x Area

Q = 1.75 ∗ 30 ∗𝜋(29)2

4

= 34677.29 mm3/sec

Flow rate is 34.67 ml/sec

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4. Part of Open Syringe Pump

Mechanical Part

Name Material Cost Dimension

Base Plywood Scrap 774mm*150mm

Lead Screw Borrowed 1.75mm Pitch, 420 mm

length

End Block Timber wood Scrap 114mm*15mm*64mm

Motor Stand (C-

Channel)

M.S Scrap 120mm*75mm

Sliding Block Timber wood Scrap 105mm*75mm

Sliding Rod Chrome plated S.S

Bar

100 Rs 280mm, 5mm diameter

Syringe & Tube Plastic 150 Rs 50 ml

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Electrical Part

Name Cost Specification

Stepper Motor 400 Rs 100 step,12 V,1 A

Control Unit 550 Rs

Arduino 1000 Rs Uno (atmega328p)

Adapter ( Power source) 300 Rs 12v, 1A

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5. Working

Open syringe pump works on simple principle it converts rotary motion of motor to

reciprocating motion of syringe piston.

As the control unit gives command to Arduino Uno, the Arduino Uno sends instruction to

stepper motor and the stepper motor rotate according to motion required based on

calculation we can find how much fluid will be drawn out and rotation of motor. After that

because of rotary motion of motor the lead screw rotates and nut attached to it pushes the

sliding block.

The Syringe piston is attached to sliding block and it gets push because of which fluid comes

out.

For Suction of fluid we can reverse the process of rotation.

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6. Assembly

The Base Plate is the main component on which the End Block and Motor stand is

fastened by screw with the help of Drilling operation.

The sliding rod is attach to End block at one and Motor Stand and lead screw with the

help of coupling and bearing.

Sliding Block is mounted on sliding rod for smooth and easy movement bush is used.

Syringe is mounted on end block attached, and syringe piston is attached to nut.

Control unit and Arduino is kept beside Motor stand.

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7. How to Operate: Step by Step

1. Connect Arduino With Laptop via USB Port

2. Connect Adapter with Power Source ( 12 V Power Supply)

3. Press Power Button on Control Board

4. Press On Reset Button

5. Press amount of fluid required

Here the Control Unit has facility of summing up

Example: If 10ml button pressed 2 times the amount of fluid which will flow

10ml x 2 = 20 ml

6. Then Press OK Button

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8. Parts and Operation Carried Out

8.1 On Motor Stand

Use

To Hold Stepper motor tightly on Base.

Raw Material

C – Channel ( Mild Steel)

Operation

Cutting

Drilling

Fastening

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8.2 End Block

Use

To Hold Lead screw bearing

To Hold Sliding Rod.

To hold syringe.

Raw Material

Timber Wood

Bottle Cap

Operation

Drilling

Gluing

Fastening

8.3 Sliding Block

Use

To Push Syringe piston freely on sliding block

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Raw Material

Timber Wood

M.S Rod (Bush)

Operation

Drilling (Timber Wood)

Turning, Drilling, Reaming (Bush).

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8.4 Sliding rod

Use

For Guiding Sliding Block

Raw Material

Chrome Plated S.S Rod

Operation

Cutting (Shearing Machine)

Filling

8.5 Plywood Base

Use

For Holding and supporting all parts

Raw Material

Plywood

Operation

Cutting

Drilling

Fastening

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8.6 Microcontroller

8.7 Electronic circuit

Use

To control all input and outputs

Operation

Soldering

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8.8 Control Unit

Use

To Receive command from operator

Operation

Soldering

8.9 Syringe

Use

To supply fluid

8.10 Check Valve

Use

To allow fluid to flow in only one direction

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9. Advantages

Works at pressures up to 3000 psi

Highest precision < 0.1%

Pulse free flow

Accurately dispense very small to large

Easily sterilizable

Can dispense or withdraw

Many easily programmable dispensing

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10. Application

Chemical and Biomedical research

Palliative care

Microfluidic applications

Pumping sample/ calibrate into Mass Spectrometer

Accurate dispensing of drugs in animals

High pressure flow into reaction chamber

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11. Possibility of improvement in Project

We could have used high torque motor for easy pumping of viscous fluid.

We have used Lead screw, Ball screw if used would give more accuracy in flow of fluid

If syringe volume is increased the pump capacity would increase.

If metal base is used it would be more robust and have good accuracy.

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12. Our Experience during the Project

During working on project we got stuck for material for calculation and that helped

we understood the material and operation to be carried.

We learn how to utilize scrap, our 70% of project is made from scrap (Minimum

Cost).

We learned how to co-operate with people and inherit there knowledge.

It helped us working in team and mutual understanding.

Project making is the best opportunity for each and every student to increase

individual knowledge & skills.

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13. Conclusion

During the making of this project, we have learned the importance of the different

materials and their specific properties. We have understood the importance of planning

and distribution of work among team members and it developed and mutual

understanding between us.

We got a good expose of practical work for making An Open syringe pump and learned so

many things how to make it physically.

The project gave the knowledge of how to apply theoretical part in to the practical work or

in real life example. Also we were able to develop problem solving skills through

brainstorming or teamwork so to successfully complete our project.

And we got some idea about computer programming for Arduino circuit.

And in this growing world accuracy is given more value than precision and our project is

totally based on Accuracy.

We know that it would be very beneficial for our future life.

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14. Reference

Book

Mechanical Engineers Handbook

Website

www.hackaday.io (Project Competition Site)