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Journal of Biomedical Science and Bioengineering
Published by Universitas Diponegoro
ISSN : -     EISSN : 27764052     DOI : -
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering
This journal has the scope of all aspects of biomedical science and bioengineering. Its scope also covers medical sciences, signal processing, biomaterial, medical diagnostic tools, ergonomy as well as all related studies.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 20 Documents
 1   2 
Effect of Using Coolant on the Formation of Microcracks, Burr and Delamination in Bone Drilling Process Rusnaldy Rusnaldy; Pratama Eka Putra Sijabat; Paryanto Paryanto; Toni Prahasto
Journal of Biomedical Science and Bioengineering Vol 1, No 1 (2021)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (783.313 KB) | DOI: 10.14710/jbiomes.2021.v1i1.17-26

Abstract

Direct approach for bone fracture treatment usually involves restoring the fractured parts to their initial position and immobilizing them with plates, screws and wires. This approach needs a bone surgery drilling to produce hole for screw insertion. But this drilling process causes mechanical damages, i.e microcracks, burr formation and delamination, that can reduce the stability of the fixation. One of the ways to minimize it is by using coolant. Moreover, it is noted that bone has anisotropic microstucture. The object of this study is to understand the effect of coolant on mechanical damages that occur in bone drilling and to understand the effect of microstructure difference on microcracks that occur in the drilled walls holes. Adult bovine bones and adult goat bones were used in this study as the specimens to represent differences in cortical bone microstructure. Five consecutive holes from the distal to the proximal in each specimen were generated using manual hand-drill (spindle speed (n) = 1000 rpm; drill bit (d) = 4 mm diameter) with the use of coolant as variation. The drilling holes then stained and observed using a microscope. As the result, it was found that the use of coolant can significantly reduce the drilling temperature. Microcracks, burr formation and delamination were found to be quite large in the drilling holes without coolant. However, there is no microcrack found in the drilling holes with coolant, there is only a small number of burr formation was found. In addition, it was found that the differences in bone microstructure affect the number and length of microcracks that occur in the wall of the hole. It can be concluded from this study that the application of coolant is very effective to reduce the drilling temperature and enhancing the quality of the hole generated by bone drilling and the higher the density of osteon in cortical bone, the easier the microcrack to initiate and propagate.
Design and Analysis of The Energy Storage and Return (ESAR) Foot Prosthesis Using Finite Element Method Alfiana Fitri Istiqomah; Rifky Ismail; Deni Fajar Fitriyana; Sulistyo Sulistyo; Akmal Putra Fardinansyah; Murti Ayu Nur Safitri; Januar Parlaungan Siregar
Journal of Biomedical Science and Bioengineering Vol 1, No 2 (2021)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.87 KB) | DOI: 10.14710/jbiomes.2021.v1i2.59-64

Abstract

ABSTRACT. Disability issue has increased in recent years due to the high number of accidents and vascular disease. Loss of limb function for people with amputations often results in an abnormal gait. Energy Storage And Return (ESAR) foot prostheses provide an alternative to help improve gait and minimize metabolic energy expenditure during the walking phase of amputees. This study used 3 designs with models from the Catia V5 Software. The finite element method analysis used Ansys Workbench 18.1 software to evaluate the three designs with a loading of 1.2 times the user's body weight with a maximum weight of 70 kg in normal walking activities. The simulated material is carbon fiber prepreg which has tensile strength, Young's modulus, Poisson ratio, and density of 513.72 MPa, 77.71 GPa, 0.14, and 1.37 g/cm3. The decision-making matrix method is used to determine the best foot prosthesis design according to predetermined criteria. The highest value in the decision-making matrix is 76 in Design 3. The chosen design (Design 3) after gait cycle analysis has a maximum von Mises stress value of 76.956 MPa and the safety factor value for each gait cycle heel strike loading model is 1.0762; foot flat 3.2509; toe-off 6.6263.
Review of the temperature and holding time effects on hydroxyapatite fabrication from the natural sources Akhlis Rahman Nurhidayat; A. P Bayuseno; Rifky Ismail; Rilo Berdin Taqriban
Journal of Biomedical Science and Bioengineering Vol 1, No 1 (2021)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.196 KB) | DOI: 10.14710/jbiomes.2021.v1i1.27-31

Abstract

Biomaterial development is currently being carried out to help people who have daily needs. Hydroxyapatite has biocompatibility properties and suitables for the use as a biomaterial. Hydroxyapatite can be found in natural sources sometimes as waste. One of the hydroxyapatite fabrication methods is calcination process. Calcination and sintering are used to obtain the desired Ca/P ratio of the hydroxyapatite. This paper reviews several research which have been published by researchers to withdraw the connection during calcination process, with respect to the temperature and holding time effects on hydroxyapatite fabrication from the natural organism. The effect of temperature and holding time determines the yield of Ca/P ratio which affects the resulting mechanical properties. Choosing the right temperature and holding time will produce Ca/P which meets the standard
Experimental and Numerical Evaluation of Mechanical Properties for Carbon Fiber Reinforced Epoxy LY5052 Composite for Prosthesis Structures Mahfud Ibadi; Yudan Whulanza; Herry Purnomo
Journal of Biomedical Science and Bioengineering Vol 2, No 1 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i1.18-22

Abstract

Carbon Fiber Reinforced Epoxy is one of the materials that is widely used in the manufacture of phosthesis structures. In this study, the carbon fiber used carbon-kyoto type plain weave while the epoxy matrix was LY5052. The maximum stress (s) from the tensile test is 537.15 MPa. Furthermore, tensile test simulation with Finite element analysis simulation using Abaqus software, in the process the selection of mesh through input sizing control determines the accuracy of the results. The simulation results are 523.3 MPa when compared to the experiment the difference is 2.58%
Development of Ergonomics Checklist on Stroke Therapy Aids (Wearable Elbow Exoskeleton) Novie Susanto; Christ Novia Saraswati; Wiwik Budiawan; Rifky Ismail
Journal of Biomedical Science and Bioengineering Vol 2, No 1 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i1.23-29

Abstract

This study aims at building a checklist used for each stage of wearable Elbow Exoskeletons development. The Wearable Elbow Exoskeleton is one of the handstroke therapy aids which was developed by Diponegoro University. The product is still in the form of a prototype so some tests must be carried out before the product is tested on respondents. The test so far is still focused on functionality tests. This study provides a general checklist for ergonomics testing of stroke therapy aid products. The method of the checklist is developed based on an exploratory study and literature review for producing appropriate tests related to product characteristics. There are three iterations of product development and each version repairs the previous version. The implementation of the checklist shows that on the third iteration, the product is aligned with the objective of development and reaches the targeted level of respondents’ satisfaction.
Designing to Speech Therapy of Augmented Reality Technology: Needs Identification Manik Mahachandra; Abel Kristanto Widodo; Wiwik Budiawan
Journal of Biomedical Science and Bioengineering Vol 2, No 2 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i2.30-36

Abstract

Speech Delay (primary) is one of the high contributors to the case of children's speech delay. That matter occurs due to the lack of child interaction in this modern era. The speech delay treatment can be provided in flashcards, hand puppet stories, multimedia, mobile applications, and computer games. The handling has not fulfilled the multisensory (visual, auditory, and tactile) components children need. Augmented reality technology will be the answer as a tool for speech therapy because children will interact significantly with virtual objects that have been combined with conditions in the real world. Before using augmented reality, it is necessary to identify the appropriate needs. The process of identification by the Delphi method for the design factors for speech therapy aids with Ulrich & Eppingger until the concept development stage. Delphi results indicate three main factors, i.e., visual, sound, and interactive technology, which become the basis of planning. The design will generate a low-fidelity prototype. Usability test results obtained: Effectiveness (82%), Efficiency (0.01285 goals/sec), and Satisfaction (87%) with task performance easy to do. Speech therapy aids are recommended at the cost of 100,000 IDR. The companion is willing to use this speech therapy aid if it is recommended or the product is sold.
The Effect Of Administrative Drug Due To Oxidative Stress On HIV Patients : A Literature Reviev Figa Danang Hidayatulloh
Journal of Biomedical Science and Bioengineering Vol 2, No 2 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i2.37-42

Abstract

ABSTRACTHIV-related neurocognitive problems have been associated with elevated levels of cerebrospinal fluid (CSF) as indications of oxidative stress, nerve damage, and inflammation as well as lower levels of neurotransmitters (HAND). HIV-related neurocognitive problems have been associated with elevated levels of cerebrospinal fluid (CSF) as indications of oxidative stress, nerve damage, and inflammation as well as lower levels of neurotransmitters (HAND). This study aims to collect and analyze articles related to drug administration in HIV patients. The design used is a literature review. Search articles were collected using the PubMed database by entering the keywords HIV, Oxidative Stress, and Effect. Since it is known that there is a stress process oxidative stress in HIV patients a type of antioxidant developed for protection against the occurrence of HIV a mixture of various antioxidants that do not dangerous like vitamins and their derivatives able to suppress the symptoms of HIVKeywords : HIV, Oxidative Stress, Effect On HIV
Prototype Of Mask Recognition And Body Temperature In Real Time With Amg8833 Thermal Cam Sensor For Covid-19 Early Warning Based On Minicomputer Aan Burhanuddin; Muchamad Malik; Yuris SetyoadI
Journal of Biomedical Science and Bioengineering Vol 2, No 2 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i2.43-49

Abstract

On April 19, 2020, the Republican Covid Task Force declared that the Covid-19 pandemic was a national disaster in Indonesia. At that time it was confirmed that there were 6575 cases and an increase of 5.23% compared to the previous day, then there were 5307 people in treatment which increased by 5.55% compared to the previous day, it was reported that 582 people died, which increased by 8.79 % compared to the previous day, and 686 recovered patients. WHO reports that the case fatality rate (CFR) or the death rate of Covid-19 cases in Indonesia reached 8.3%, which is twice the world's CFR. In this study, the main focus is to detect masks and body temperature used by visitors with various variations of masks on the market today, and next is to control the servo motor according to the detection conditions whether using a mask in real-time. Based on research on the system that has been tested, it shows that the components used to generate heat are very effectively used and can work as expected, and the MobilenetV2 method applied to the Raspberry Pi as the brain of the system can work as expected and has an accuracy rate of 99%. The AMG8833 sensor can read effectively at a maximum distance of 30 cm, the temperature reading deviation level is 0.1⁰C.
Task and Kinematic Parameters for Upper Limb Stroke Patient: A Review Yosua Wijaya; Rifky Ismail; Toni Prahasto
Journal of Biomedical Science and Bioengineering Vol 2, No 2 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i2.50-62

Abstract

The development of robotics technology has now been used to assist the rehabilitation therapy process of stroke patients.  This far, the progress of therapy patients has been observed qualitatively and quantitatively with several clinical assessments such as Fuegl Meyer, Barthel Index, Motor Function Index, etc. This paper aims to provide a review of stroke patient progress evaluation measurements using kinematic parameters using elbow and shoulder robotic therapy devices and provide an overview of the types of exercises performed on the robotic therapy interface on the motor and cognitive development of stroke patients. Thirty publications that used kinematic parameters as the basis for assessing the development of stroke patients were included, there were 81 kinematic parameters from all the studies reviewed, based on ICF 53 of which were included in the Body Functions and Structures (BFS) classification, and 28 others were included in the Activities and Participation (AP) classification. Several studies showed a good correlation between the measurement of kinematic parameters and clinical assessment (P<0.05), in addition to good correlation some kinematic parameters also showed good reliability (ICC, r>0.7; P<0.05).
CT SCAN 128 SLICES TECHNOLOGY IN EMERGENCY PNEUMOTORAX AND PNEUMOMEDIASTINUM CASES Lilik Lestari; Muhammad Harris Sis Sultansyah
Journal of Biomedical Science and Bioengineering Vol 2, No 2 (2022)
Publisher : Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBOIM3S)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbiomes.2022.v2i2.63-67

Abstract

Pneumothorax and pneumomediastinum are complications of mechanical ventilation of the pleural and mediastina cavities. This study aims to report the findings of a 128-slice 3D chest scan with an axial coronal view for a case of pneumothorax and pneumomediastinum. Research conducted at dr. Ario Wirawan, Salatiga. The study used a CT scan 128-slice type Ingenuity CT 120 kV, series 502 idose 4, slice thickness 0.64 mm, zoom 1.0 and used contrast. The CT scan imaging results were qualitatively analyzed by experts. The results showed four cases with pneumothorax and pneumomediastinum, and only pneumothorax was found in seven cases.

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