Surgical Dental Implant Guide

Atkia Atia, MD. Iftekharul Haque Fahim

Supervisor: Md. Kawsar Ahmed, Assistant Professor.

Abstract

The proper positioning of dental implants is essential to preventing damage to vital structures, providing an optimal prosthesis, and ensuring a successful long-term outcome. Therefore, implant guide or surgical template is one of the most accurate ways to place an implant and predictably relate the implant to its definitive prosthesis. Recent developments in high-quality desktop 3-dimensional stereolithographic printers have led to the customized fabrication of stereolithographic surgical guides at reduced cost (Dawood et al., 2015). The most useful adaptation of this technique integrates cone-beam computed tomography (CBCT), a template designed by 3D computer graphic software and, a 3D printer to produce the definitive computer-aided manufacturing (CAD-CAM) guide. This guide controls the drill angulation, depth, and location of the implant.

 

 

Flexion Extension Gloves for Hand Paralyzed Patients

Tahmed Ahmed, Basnin Musfirat Mohiuddin, Purnopama Saha

Supervisor: Taufiq Hasan Aneem, Assistant Professor.

Abstract

Stroke is the third leading cause of death globally, affecting nearly 700,000 people annually. While two-thirds survive, many are left with disabilities such as upper extremity hemiplegia. Without immediate therapy, the hand and arm lose power and muscle control, leading to a claw-like appearance and loss of function, severely impacting daily activities. Approximately 2.5 million people suffer from moderate to severe arm and hand mobility impairment, primarily due to stroke (33.7%), spinal cord injury (27.3%), and sclerosis (18.6%).Current hospital therapies are costly and hard to manage due to limited resources. Rehabilitation exercises are vital for recovery, highlighting the need for an automated solution. This work proposes a hand exerciser glove that provides repetitive flexion and extension of fingers to stimulate muscle movement. Such therapy promotes neuroplasticity, prevents muscle atrophy, improves blood flow, enhances sensory feedback, and aids in restoring motor control and coordination—key factors in stroke rehabilitation.

 

 

Low-cost, laboratory scale Bioreactor for bacteria and beta cell culture

 Samina Nishat Binte Akram, Jarin Tasnim Maisha, Fairooz Nawer

Supervisor: Taufiq Hasan Aneem, Assistant Professor.

Abstract

Bioreactor technology can be implemented for a wide variety of applications in the biomedical field, including diabetes, a chronic, progressive disease characterized by elevated levels of blood glucose. The large-scale culture of insulin producing recombinant e-coli in bioreactors is well established. Moreover, the latest approach to curb the complications related to diabetes is to find permanent solution for reenact the blood glucose homeostasis by implantation of healthy pancreatic or stem cells, commonly known as cell therapy, which utilizes bioreactor technology. Hence, keeping the growing need for laboratory-based bioreactors in mind, in this project, we are presenting a low-cost bioreactor for bacterial culture and beta cell culture for cell therapy. The main features of our bioreactor include pH and temperature automating system, aeration and agitation system, altogether making up a biologically active environment. Our bioreactor can be implemented at a much lower price point compared to a commercial one,thus creating better facilities for cell and bacteria culture in a laboratory setting.

 

 

Cost-Effective Portable Automatic External Defibrillator

Tonmoy Chandro Saha, Shawkat Osman Shishir, Maksudul Hoque Rafi

Supervisor: Nusrat Binta Nizam, Lecturer.

Abstract

The goal of this project is to go through the designing processes of a compact, portable AED for ease of usage. Sudden cardiac death causes 15-20% of deaths worldwide annually. According to a study conducted in the USA, the total mean direct medical care costs for patients with established cardiovascular disease (CVD) was $18,953 per patient per year with inpatient costs being 42.8% ($8114) of total costs. The cost of treating CVDs in developed countries like Bangladesh appears to be much higher compared to what has been observed in this study. Numerous technological advancements have been made since the first defibrillator was created in 1947. For heart disease patients, technological advancements have boosted their life expectancy and enhanced their quality of life. A portable defibrillator is a brand-new gadget created to offer monitoring and defibrillation capabilities for infarct sufferers and people awaiting heart transplants. There is a higher risk of sudden cardiac mortality in these two patient categories. The patient’s cardiac rhythm is continually monitored by this external wearable ECG device. The monitoring device is set up to detect the person’s heart rhythm. If the heart changes and meets the criteria for a lethal arrhythmia, the monitoring microcontroller, Arduino UNO will provide a series of alarms to the patient and bystanders. If the patient fails to respond to the alarms, because of loss of consciousness, the system delivers a shock to treat the life-threatening arrhythmia. Although still in the investigational phase, this device holds promise as temporary protection for patients at risk for sudden cardiac death. The device is fully automated, meaning that the heart rhythm is automatically detected, and the defibrillation process should start by itself if needed until a normal heart rhythm is detected. To reach this goal, the project has been divided into 3 main parts. At first, a Bitalino ECG acquisition board has been installed. This board needs to measure the patient’s ECG signal. Then, an arrhythmia detection algorithm has been developed, using Python & Machine Learning Models. This allows for to detection of ventricular fibrillation, bradycardia and tachycardia which are shockable rhythms, for which a shock can be delivered to restart the heart. Finally, a high-voltage defibrillation delivery circuit is designed. The working principles have been investigated and are described in this work.

 

 

Autotherm: Automated Controllable Heat Therapy With Dynamic Monitoring And Feedback System

Mahbuba Ferdaous, Jannatul Ferdous Anyotoma, Arpa Dhar

Supervisor: Nusrat Binta Nizam, Lecturer.

Abstract

An automated heat therapy and feedback system is designed for various kinds of musculoskeletal and neuromuscular diseases such as patients to make the therapeutic sector safer, monitorable modernized, controllable and feasible. The specific objectives of the project are to develop an automated heating belt and evaluate the changes of patients before and after therapy remotely via a software system. The conventional way of checking the improvement is replaced by sending the feedback to professionals and visual analog scale-based treatment via a software system. The data of patients will also be stored and will be used for overall analysis of condition of patients taking heat therapy. This system will assist specialists for clinical decision and support.

 

Baby-Belt : A Low-Cost Uterine Contraction And Fetal Heart Rate Monitoring Belt With Aspects Of Abnormality Detection , Like – Preterm Labor, Uterine Rupture Etc

Mahmud Wasif Nafee, Tasmia Rahman Aanika, Asfina Hassan Juicy

Supervisor: Shams Nafisa Ali, Lecturer.

Abstract

In present times, the number of pregnant mothers with risk of health issues have risen due to factors like lifestyle changes. To ensure better care for pregnant mothers, there is a need for modern and user-friendly devices that can provide better health facilities without the help of any particular expertise. Hospitals also need to use such devices to take load o􀆦 their manpower and focus more on patient well-being..This design involves a design of a wearable belt design and algorithm system that can detect uterine contractions ( UC ) and fetal heart rates ( FHR ) during the third trimester of pregnancy in a much cheaper ( In contrast to the CTG machines ) and user-friendly way, with the algorithm and UC feature extracting algorithm, the device shows promise to early the detection of some prime labor complications , including preterm labor , uterine rupture etc , to give an early alarm of maternal and fetal mortality.

 

 

Integrated Drainage Container

Adhora Madhuri, Nusaiba Sobir, Tasnia Binte Mamun

Supervisor: Nusrat Binta Nizam, Lecturer.

Abstract

Various lung diseases cause excess fluid in thin space between layers of tissue that line the lungs and chest cavity that is known as pleural effusion. It causes shortness of breathing and coughing. In a developing country like Bangladesh, hospitals cannot afford costly medical equipment. So, chest drainage bag that costs only 260 taka is the available solution for draining excess water from lungs. The prevailing chest bag is only made of a tube and a bag and it has some disadvantages- air backflow, overflow risk, hassle of continuous monitoring, one time usable, difficulty in hanging or keeping straight and some others. All these accumulate to the hassle of the doctors, care givers and most importantly of patients. As a solution of it, we proposed Integrated Drainage Container. It is a modified and upgraded version of existing chest drainage bag that resolves the prevailing issues. A one way valve is introduced to prevent backflow of air; overflow can be prevented as the device will give alarm if water level is crossed threshold. Moreover, it is compact, reusable, lowcost, user friendly for both doctors and patients.

 

 

Dengue Fluid Calculator and Automation

A.S.M Anas Ferdous, Sk Shamiur Rahman, Mahian Kabir Joarder

Supervisor: Shams Nafisa Ali, Lecturer.

Abstract

In Bangladesh, where dengue fever is a serious pandemic, many patients suffer from a lack of medical supplies and expertise. The goal of this research is to address this issue by creating a fluid management system that can precisely determine the amount of fluids and fluid flow rate needed for a Dengue patient depending on their age, weight, and level of dehydration. A pump controller app is also part of the system, and it can be programmed by a doctor to automatically distribute fluids at the desired pace. By offering a dependable and effective method of managing Dengue patients, this initiative has the potential to save a great number of lives in Bangladesh.

 

 

Cost-effective Body Powered Prosthetic Arm for Trans-radial Amputees

Munira Joshone, Fahmida Akhtar, Nawshin Jannat

Supervisor: Md. Kawsar Ahmed, Assistant Professor.

Abstract

Trauma, malignancy, vascular diseases, congenital deformities, and infection cause arm amputation to a large number of people in our country every year. To lead a better life, these victims desperately need functional prosthetic arms, but the available ones are too expensive for them to afford. Considering the socio-economic state of the amputees, we need functional prosthetic arms at low cost. Therefore, we focused on designing and implementing a functional prosthetic arm for trans-radial amputees at low-cost with simple technology and available resources. We took measurements from a trans-radial amputee, prepared a mould from his stump and designed our product in SOLIDWORKS according to that. We merged both additive and subtractive manufacturing process in the fabrication of our device. We went for CNC machining to fabricate the terminal device and 3D printing to implement the adapter-forearm segment of the prosthesis. In assembly we used locally available belts and harness. All these reduced the manufacturing cost up to 93.76%. The terminal device has real human hand-like appearance and grasps and releases objects using shoulder flexion and extension. The prototype is very light-weight compared to the currently available devices in the market. We tested the performance of the arm with an amputee by Box and Blocks Test (BBT) and common movement activities of daily living (ADLs). The results clearly demonstrated that our prosthetic arm has good grasp capability and can effectively move small and medium size objects in both horizontal and vertical directions. So, we successfully accomplished our aim of providing cost effective functional prosthetic arm.

 

 

AnkleGlide: A Continuous Ankle Flexion Device for Long Term Bed Ridden Patients

Raiyun Kabir, Mrinmoy Nandi Bappa, Raisa Islam

Supervisor: Shams Nafisa Ali, Lecturer.

Abstract

Deep Vein Thrombosis (DVT) and muscle atrophy are some of the key consequences resulting from patients’ prolonged stay in the ICU in an immobilized state. While lack of movement leads to muscle atrophy, poor pressure distribution also slows down blood flow for a sustained period leading to DVT. To prevent this, blood flow must be maintained within an optimal range. Typically, sequential compression devices i.e., polymer wraps applied around the legs of a patient, are employed to reduce the possibility of blood clot formation. These devices include inflatable and deflatable compartments that gently contract the muscles in the legs. However, it requires around 50 USD/day to operate a pair of cuffs, which is too expensive for the general people of low and middle-income countries to pay on daily basis. This calls for the need of developing a simple, low-cost, easily functional alternative that can be readily used for somewhat alleviating the risks of DVT and muscle atrophy in critical, immobile patients of ICU. With this motivation, we have come up with the concept of developing a low-cost Continuous Ankle Flexion Device ‘AnkleGlide’ that minimizes legmuscle atrophy while pumping the calf muscle to avert potentially fatal scenarios.