Pocket ECG System
Jannatul Ferdous, Tanzila Akter
Supervisor: Nusrat Binta Nizam, Lecturer.
Abstract
The ECG machine is used to measure the activity of the heart. But most of the ECG devices are heavy and not portable. Some, Portable and wearable ECG machines are available in the market. But most of the devices are costly. So, our main aim is to make a wearable low-cost ECG device. We also focused on IOT functionality for our device. IOT devices are on the rise for the past few years as internet speed and accessibility have grown over time. Not only that, wireless data transmission is much faster with Wi-Fi compared to regular devices which uses Bluetooth. To have a Wi-Fi enabled ECG device is can also enable the potential for cloud computing. The other focus of our device was a storage unit for ease of accessibility of data.
Mechanical AMBU Bag
Md. Mehadi Hassan Sagor, Saima Islam
Supervisor: Nusrat Binta Nizam, Lecturer.
Abstract
When mechanical ventilators such as CPAP, APAP, BiPAP, and others are not accessible, the artificial manual breathing unit (AMBU) bag is generally the first option for providing ventilation to a patient with breathing difficulties. The goal of this research is to create a fully automated AMBU bag system that requires less human effort and requires less expertise to operate. A comprehensive system has been constructed to imitate the entire functioning of AMBU bags in this project, based on the mechanism of a manual sewing machine. The compression of the AMBU bag has been determined from the linear displacement of the AMBU bag surface to evaluate. The research emphasizes the need of continuing to enhance mechanical AMBU bags, as they might be a lifesaving aid in an emergency circumstance for patients who require rapid mechanical breathing.
A LOW-COST WIRELESS PEDOGRAPH SYSTEM FOR DETECTING DIABETIC FOOT ULCER
MD Abdullah Al Mamun, Shakhaoat Hossain, Umma Habiba
Supervisor: Shoyad Ibn Sabur Khan Nuhash, Lecturer.
Abstract
Healthcare and wellness management for the diabetic patient is one of the most promising information technology in the field of medical science. A health care monitoring system is necessary to constantly monitor diabetic patients’ physiological parameters. Our Pedograph device is one of the health care monitoring systems. Diabetes results in development of increase in pressure among the foot regions. This may cause injury in the feet; painless trauma develops and results in ulceration. So prevention of diabetic foot ulcer is needed. The Pedograph device gives an image of the distribution of pressure under the feet at an early stage revealing high-pressure regions. Information that we get from the device, helps to detect the foot ulcer at early stage.In our project, we have developed a low cost wireless pedograph system based on an Arduino microcontroller, which a patient can use at home to measure his or her foot pressure. Our goal was to design an inexpensive and compact pedograph system which will be easier to operate and for building up an easy interface for doctors. We developed wireless communication using HC-12 Bluetooth Transceiver Module. For observing the result more easily, we have developed an app using Graphical User Interface (GUI) in Matlab. We can observe the real-time data by using the app with one click. In our final prototype we have added a small pouch which will be attached with patient leg without bothering him or her about the wirings. The results show that such a device can be built at a low cost and can accurately measure the foot pressure distribution to detect anomalies.
Design of an Infusion Pump
Afia Zahin, Ayesha Binth Humayun
Supervisor: Taufiq Hasan Aneem, Assistant Professor
Abstract
The aim of the infusion pump is to progressively administer precise doses of a drug while controlling the flow rate. An infusion pump is a small infusion device that is used to gradually administer specific amounts of fluids for use in chemical and Biomedical Research. Delivering fluids such as nutrients and medications intravenously into a patient’s body in a controlled environment is one of the essential prerequisites in modern medical procedures. Administering fluids directly into a patient’s circulatory system results in a predictable and immediate absorption of the drug or fluid administered, this may play a vital role in the treatment of certain acute conditions which require immediate action by drugs or fluids. Infusion pump is a motor-driven precision pump that uses one or more syringes to deliver precise and accurate amounts of fluid in high-impact research environment. The motor drives the plate, pushing the plunger which ejects the fluid from the syringe. For converting rotatory motion of the motor into linear motion, lead screw mechanism is employed that is driven by a steeper motor. Continuous flow can be achieved by using pumps with two syringes, where one pulls liquid and the other pushes liquid. The objective of this work is to design an infusion pump to provide constant and continuous flow rate to deliver small volume with high accuracy and low the cost to improve quality of service in the healthcare sector of developing countries.
Spinal Rod Contouring Device
Nuzhat Arman, MD. Tashdid Hossain Shoudho
Supervisor: Dr. Jahid Ferdous, Associate Professor.
Abstract
Throughout this project, we worked on the development or improvement of the design of a spinal rod contouring device. In the main design the height of the device was huge. For this reason, our focus primarily shifted on the reduction of the height. A part named French bender is used to bend the rod. It has a pair of pivot able engaged opposing lever arms. A three-point/post bending mechanism is used in the design, including a single center post mounted on pivot. In this project, we also focused to replace French bender with another device which will save the device from space consumption. So, we developed a round device with 2 rod holders which can rotate and its rotational motion can help in bending the rod. Our design was able to reduce the space consumption compared to the original one, to some extent in both length & height. It also saves time compared to the previous one as both the linear and rotational motion was combined to one . In our previous course BME 300 we designed an alternative version of the device in solid works . But some of the parts of that designed one were not found in exact dimension .That’s why ,the dimension of the device has been modified in reality to some extent than the one designed in the previous course. But however, the overall dimension has been reduced from the original one. Therefore, it will be easily usable in hospitals.
The Fetal Movement Counter
Angkon Biswas, Joydip Paul
Supervisor: Nusrat Binta Nizam, Lecturer.
Abstract
Fetal movement count monitoring is one of the most commonly used methods of assessing fetal well-being. However, existing methods often suffer from limitations such as unreliability and the inability to be conducted outside clinical settings. Therefore, this work was carried out to design a complete system that enables pregnant mothers to monitor fetal movement at home. The system comprises a non-invasive, non-transmitting, low-cost sensor unit utilizing an accelerometer as the primary sensor and a microcontroller-based circuit. Clinical testing was initially planned in two phases, involving readings from volunteer pregnant mothers and validation via abdominal ultrasound as the ground truth in the second phase. A clinical survey was also scheduled in parallel to improve the sensor unit and overall system. Unfortunately, due to the rapid deterioration of the Covid situation in the country, clinical testing and data collection could not be completed. Instead, we used a publicly available dataset from Delay et al., which was similar in range to our sensor data, to develop an algorithm for detecting fetal movement. As a result, this work features a functional sensor device and a compatible detection algorithm. A mobile application and other recommendations were proposed as future work, establishing this system as a complete end-to-end solution for monitoring fetal movement in non-clinical settings.
DESIGNING AN UROFLOWMETRY DEVICE
Md Tazuddin Ahmed, Tasnim Jahan
Supervisor: Dr. Jahid Ferdous, Associate Professor.
Abstract
Uroflowmetry is a key diagnostic test in urology that assists in predicting any possible complications in the lower urinary tract. Although the Uroflowmetry test is conducted in hospitals, for a class of patients, the regular tests in hospitals prove to be somewhat inefficient. The current work explores these conditions with depth and comes up with a developed design model of a Home-Uroflowmetry Device. This device has the potential to save a great deal of time and inconvenience for patients suffering from LUTS (Lower Urinary Tract Symptoms). The device’s working principle is mainly based on a Load Cell and the embedded microcontroller of Arduino UNO.The device is designed keeping its space consumption in mind. A foldable voiding chair has been used in order to minimize the room covered by the device. Also, the measuring setup consisting of the Load Cell, Arduino UNO and other components is very compact. Results of a uroflowmetry test session is displayed through Bluetooth Terminal HC-05 application via any android smartphone, which makes the control mechanism of the device much simpler.The device was tested for the parameters ‘Average Flow Rate’ and ‘Total Voided Volume’. The error percentage was within around 2% for each parameter which can be considered satisfactory enough considering its affordability. The error percentage was seen to be improved with periodical recalibration.
Indoor Air Quality Monitoring System
Mehedi Hassan, Md. Ahnaf Tanvir
Supervisor: Shoyad Ibn Sabur Khan Nuhash, Lecturer.
Abstract
Indoor air quality (IAQ) parameters are not only directly related to occupational health but also have a significant impact on quality of life as people typically spend more than 90% of their time in indoor environments. The indoor environments are confined and closed compared to external environments providing less opportunity for the pollutants to dilute. With the advancement of technology, working places have become more automated using machines to carry out the tasks that were hitherto done manually. These devices emit various solids and gases into the environment during their operation. These emissions contain many substances that are harmful to human health, when exposed to them for a prolonged period or more than certain levels of concentration. In this project, we present a low-cost indoor air quality monitoring system developed using Arduino, PMS5003, DHT22, and BMP180 sensors. The system has been developed to monitor the indoor air quality parameters like particulate matter (PM1, PM2.5, and PM10), temperature, and humidity that can affect the occupant’s comfort, health and indoor work environment if not properly maintained.
PASTEURIZATION OF MOTHER MILK
Awsaf Rahman, Rakib Hossen
Supervisor: Taufiq Hasan Aneem, Assistant Professor.
Abstract
Natural breast milk from mother is the best food for all newborns, especially preterm babies. When mother milk is not sufficient donor milk is the next best option. Unpasteurized milk has a shelf life of only 6 hours, but pasteurized milk has a shelf life of 12-14 hours. Pasteurizers for human milk are often enormous, expensive, and need electrical and water connections, as well as a high amount of non-recyclable water and a continual supply of disposable plastic bottles. This equipment requires training to operate. Our project’s goal is to make a pasteurizer that is just for personal use. Here we designed a compact, automated, and user-friendly human breast milk pasteurizer. This method does not require any extra water piping, recycles water, and is inexpensive. Domestically available water heater has been used. We used Low Temperature Long Time (LTLT) pasteurization method where milk is incubated for 30 minutes at 62.5 °C in a water bath or other device that ensures effective heating.
Apnea detection using fusion of ECG, PPG, and chest/abdomen accelerometry signals
Saika Afrin Sumona, Wahida Binte Naz Aurthy
Supervisor: Shoyad Ibn Sabur Khan Nuhash, Lecturer.
Abstract
The project is about developing a detection device for sleep apnea which is a sleeping disorder where obstructions of the upper respiratory tract during sleep occurs. We have designed a wearable device incorporating 3 types of sensor (ECG sensor, PPG sensor, Accelerometer). We have collected data through Arduino and transferred via Bluetooth module for processing and sent it to PC/mobile. We have introduced a wearable belt system for using the device at home and made the device budget friendly. But our collected data is not reliable so finally we have built machine learning and deep learning model on existing dataset. Our model achieved quite good accuracy so we can use it for our own collected dataset in future.
Speech & Humidification in Tracheostomies
Basudeb Biplob Das, Murar E Rabbe Kabbo, Pritom Saha
Supervisor: Taufiq Hasan Aneem, Assistant Professor.
Abstract
A tracheostomy is an opening created at the front of the neck so a tube can be inserted into the windpipe (trachea) to help you breathe. If necessary, the tube can be connected to an oxygen supply. The tube that will be used in this process is called the tracheostomy tube. The people, whole over the world suffer from breathing problem. Sometimes they have to go to medical treatment with extensive care of doctors. Often the situation goes at an extreme phase, patients can’t breathe by their normal airway. So, doctors refer to tracheostomy by using a tracheostomy tube. But the problem is when patients use this device, they can’t talk and the present device hasn’t a humidification facility. This kind of lacking of medical devices bring more complication for patients and also for doctors. To solve this problem, we introduce a newly designed tracheostomy tube which has humidification and speaking facilities. Without speaking and humidification, there was another problem that is concerning which is removing mucus from throat. We sort out it to make the filter and valve keeping in one frame and making it portable. This is a low costing device and this was our one of prime concern. The main challenge was maintaining pressure drop across one way valve and humidification filter. We emphasis on it and present result is satisfactory.
Air Disinfection System
Sumaiya Ohab, Md. Rakib Hossen, Shakib Mahmud Ayon
Supervisor: Dr. Jahid Ferdous, Associate Professor.
Abstract
Air purification and disinfection systems are intended to effectively clean the air in the environment and reduce or inactivate harmful populations of airborne pathogenic microorganisms, aimed to provide significant assistance in the fight against outbreaks and harmful infections. Bioaerosols can cause many adverse health effects, including allergic, toxic, and infection responses. Exposure to bioaerosols may be especially hazardous in clinics and hospitals. But adding an air disinfection system can reduce the risk of infections and can improve the environment in clinics and hospitals.
Body Powered Mechanical Prosthetic
Md. Jahidul Islam, Md. Mahadi Hossain, Humyra Hossain
Supervisor: Dr. Jahid Ferdous, Associate Professor and Nusrat Binta Nizam, Lecturer.
Abstract
The number of upper arm amputees are increasing due to the increase of incidents of accidents and trauma and diseases in which the percentage of below elbow amputees are higher. There has been evolution of many prosthetic devices with high tech facilities in the market in the past few years which are very costly. However, the frequency of amputees is more severe in low-income countries where the victims cannot afford to purchase those prosthetics and eventually loses mobility. There are several types of prosthetics available: electric, myoelectric, body powered. Among all of these, body powered prosthetic is the most cost-effective process and the lower income countries can easily access the raw materials used in this process. In Bangladesh, parts of the prosthetic devices are imported and the price is very high. Our goal was to design a body powered below elbow prosthetic using only readily available domestic materials. We have chosen hardware assembly process among many other processes where different hardware parts are assembled mechanically considering cost and ease of fabrication process. Our design includes some major parts: terminal device, forearm, plastic support, harness. After making the prototype we have implemented it with an amputee and test results respond positively fulfilling our goal to open and close terminal device using shoulder flexion and extension and picking up objects. We have also made a pricelist that includes prices of each and every detailed part used in production which revealed that if we make such prosthetics domestically, the existing price can be reduced. The prototype is also very light-weight compared to the currently available devices in the market.